CA1268093A - Disposable retracting medical lancet - Google Patents
Disposable retracting medical lancetInfo
- Publication number
- CA1268093A CA1268093A CA000500093A CA500093A CA1268093A CA 1268093 A CA1268093 A CA 1268093A CA 000500093 A CA000500093 A CA 000500093A CA 500093 A CA500093 A CA 500093A CA 1268093 A CA1268093 A CA 1268093A
- Authority
- CA
- Canada
- Prior art keywords
- lancet
- lance
- housing
- assembly
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15142—Devices intended for single use, i.e. disposable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150015—Source of blood
- A61B5/150022—Source of blood for capillary blood or interstitial fluid
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/150007—Details
- A61B5/150374—Details of piercing elements or protective means for preventing accidental injuries by such piercing elements
- A61B5/150381—Design of piercing elements
- A61B5/150442—Blade-like piercing elements, e.g. blades, cutters, knives, for cutting the skin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15103—Piercing procedure
- A61B5/15107—Piercing being assisted by a triggering mechanism
- A61B5/15113—Manually triggered, i.e. the triggering requires a deliberate action by the user such as pressing a drive button
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15115—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids
- A61B5/15117—Driving means for propelling the piercing element to pierce the skin, e.g. comprising mechanisms based on shape memory alloys, magnetism, solenoids, piezoelectric effect, biased elements, resilient elements, vacuum or compressed fluids comprising biased elements, resilient elements or a spring, e.g. a helical spring, leaf spring, or elastic strap
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15101—Details
- A61B5/15126—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides
- A61B5/1513—Means for controlling the lancing movement, e.g. 2D- or 3D-shaped elements, tooth-shaped elements or sliding guides comprising linear sliding guides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/15—Devices for taking samples of blood
- A61B5/151—Devices specially adapted for taking samples of capillary blood, e.g. by lancets, needles or blades
- A61B5/15142—Devices intended for single use, i.e. disposable
- A61B5/15144—Devices intended for single use, i.e. disposable comprising driving means, e.g. a spring, for retracting the piercing unit into the housing
Abstract
LANCET
Abstract of the Disclosure A disposable lancet assembly is provided, including a housing serving as a lance-holder guide, a lance holder body reciprocable in the housing guide, and a flat-bladed lance mounted in one end of the lance holder body. Included in the invention are integral strategically positioned abutments which serve dual functions providing snap-action drive for the lancet, together with steps for lance movement control. Also included are integral resilient means on the lance holder body providing damping of the lance drive in the puncture direction with automatic withdrawal of the lance into the housing.
Abstract of the Disclosure A disposable lancet assembly is provided, including a housing serving as a lance-holder guide, a lance holder body reciprocable in the housing guide, and a flat-bladed lance mounted in one end of the lance holder body. Included in the invention are integral strategically positioned abutments which serve dual functions providing snap-action drive for the lancet, together with steps for lance movement control. Also included are integral resilient means on the lance holder body providing damping of the lance drive in the puncture direction with automatic withdrawal of the lance into the housing.
Description
~Z68~3 Backaround and Description of the_Invention The present invention is related to U.S. Patent Number 4,616,64g issued October 14, 1986, directed to a lancet assembly,and al~o to ~uch an assembly which 5 provides automatic retractable lancet movement utilizing resilient means incorporated into the assembly having the dual function of damping the lancet drive movement~ together with providing the aut~matic retraction of the lancet once the punc-ture is made.
Sharp-pointed lancets have been employed for ~any years to make a quick puncture or penetration ~f a patient's skin in order to provide a small outflow of blood. Various tests may be employed with only a ~mall amount of blood so that the blood flowing from a finger prick is normally suficient to carry out a substantial number o~ tests.
~owever, due to the ensitive nerve endings in the fingertip area, this procedure sometimes induces a significant amount of pain in ~he patientr even though the skin puncture produces minimal cutting.
~oreover, as will be understood, many people are ~rightened by ~he appearance of a blade or skin puncturing apparatus of any kind wherein the cutting portiDn is available for them to see prior ~, .
. . . ~ ~ -: ,.~ ' . ,: ~
` ~26~3 P-826 to the puncture. In order to minimize potential pain, as well as reduce apprehension in a patient, it is desirable to make the thrust of the lancet through the patient's skin rapidly and to provide a rapid withdrawal and shielding of the lancet.
Other problems involved with such procedures include contamination by the technician in the procedures involved in taking the blood sample.
That is, the patient may have some disease, and if the lancet blade which has carried out the puncture action should prick the skin of a technician subsequent to the initial puncture, the technician and/or nurse and/or doctor involved may be exposed to contamination. Thus, it is important to have automatic retraction of the blade immediately a~ter puncture so that the blade is not exposed for an accidental puncture of someone else's skin.
Spring-loaded lancets o~ different types and forms have been well known and are typified, for example, by U.S. Patents 55,620; 1,135/465;
3~30,959 4,139,011; 4,203,446; 4,230,118;
4,449,529 and 4,388,925.
U.S. Patent 4,203,446, noted above, is significant in that it teaches the puncture of the skin of a patient with a lancet which is retracted back into the device after piercing the patient's skin. In the patented device, the downward motion of the lancet is initiated by impact of a spring-loaded hammer, and as this motion continues the spring potential decreases. At the time of the impact, the return spring begins to compress and increase potential energy. When the potential energy in the return spring under compression ex~eeds the potential energy in the driving spring, `` ~26;~3 compression of the return spring ends and decompression begins. This, then reverses the motion of the lancet.
Howeverj impact is necessary to compress ~he return spring and increase its potential energy rapidly. Without the impact force, the spring forces would approach equilibrium and then there would be no reverse mOtiGn in order to retract the lancet out of the patient's skin. Moreover, since spring potential is critical in thi~ patented device, a conical spring is relied upon to overcome recoil due to the surge of the larger return spring. Other problems include, of course, the cost of such an involved assembly. Despite the foregoing inventions, improvements in this field of lancets are still being sought.
With the invention described in U. S. Patent number 4,616,649, an improved automatic retractable lancet assembly is provided which is relatively simple of construction and easily moldable into two pieces ~f plastic ma-terial. Nevertheless, this simple construction provides, through the utilization of two an~ular abutments on a lancet holder body assembly coop-~5 eratiny with a single annular integral abu~ment ona lance holder guide~ a ~nap action drive for the la~cet to rapidly drive the lancet for tbe puncture action, with an automatic retraction o~ the lancet once the puncture has been completed. Moreover, 3~ in~egral with ~he lance holder body assembly are springs which firfit provide a damping of the lancet drive, once ~he ~ooper~ting abutments provide the ~nap action, and, secondly, provide automatic retraction of the lancet. ~he lance holder portion .
~- , , . . . ~ . , , -: , ~6~0~3 p-~26 _~ _ of the assembly includes a skin compacting front end edge surrounding the lancet blade which auto-matically engages the skin around the puncture site and moves the skin to provide an accurate skin positioning area at the puncture site, so that the lancet makes a clean puncture rapidly in the area desired.
An improvement is provided with this inven-tion in that an additional spring is incorporated into one of the two pieces forming the device.
That is, positioned between the top ~push-button~
of the lance holder body and the lance is an additional spring which enhances the spring move-ments of the device described in the above-noted co-pending application. The additional spring not only increases the damping of the snap-action drive of the assembly, but also improves the rapidity with which the lancet is withdrawn, once puncture has been made~ Moreover, this additional spring forms part of and is simultaneously molded during the formation of the lance holder body of the assembly of this invention.
The additional spring forming part of the single molded lance holder body is S-shaped in a form similar to that described in U.S. Patent 4,449,529. As such the spring is maintained in a relaxed condition before and after use, with a ~ `
momentarily extended condition during the snap-action drive. Because of its position, the spring has the effect of damping the thrust forward so as to reduce impact of the lancet body against the skin surface, and to enhance rapid withdrawal immediately upon piercing of the skin.
In accordance with prlnciples of the present .
.
. , . .
. . . ~ .
invention, the desired functions are achieved by virtue of a very simplified two-piece structure including a lance holder guide comprised of a simple elongated piece of semi-rigid material such as a plastic formed into an elongated body having substantially rectangular passage therethrough.
Movable in the passage is an elongated lance holder assembly arranged to have an integral activation handle at one end thereof, and an arrangement for connection of a lance on the opposite end.
The lance holder body assembly, aside from the integral S-spring noted above, includes two spaced integral ridges around the perimeter thereof forming abutments, as well as integral resilient means in the form of leaf springs depending from the handle end of the lance holder body assembly.
The abutments cooperate with a single integral abutment around the internal perimeter of the lance holder guide or housing for holding the two parts together prior to use, for providing the snap action in the drive of the lancet to provide the desired puncture, and for providing a stop in the return direction of movement of the lance holder.
These two molded pieces together with the actual lancet blade provide an appropriate and accurate skin puncture for obtaining the desired quantity of blood for carrying out appropriate tests. ~ore-over, the arrangement is such that it may be immediately discarded without any danger of con-tamination by subsequent puncture of those who mayhandle the used lancet assembly. Nevertheless, even though the structure provîdes the several desired functions of a modern lancet in use, it is - easily manufactured by conventional molding pro-cedures.
, i .,.~"' '- ' `~ .
. .:
~Z6~ 3 other objects and advantages of this inven-tion will be apparent from the following descrip-tion, the accompanying drawings and the appended claims.
Description of the ~rawings Fig. 1 is a side elevational view of the lancet assembly of the invention Fig. 2 is an end view of the lancet assembly of ~ig. 1 as viewed from the right-hand end thereof Fig. 3 is a partial sectional view of the assembly of Fig. 2 taken along lines 3-3 of Fig. 2;
and Fig. 4 is a top plan view of the apparatus of Fig. 1.
Detailed Description of the Invention -Referring to the drawings in which like reference characters refer to like parts throughout the several views thereof, Fig. 1 shows the lancet assembly 10 of the invention from one side, and includes generally rectangular lancèt holder guide housing 12 and lance holder body assembly 18 reciprocable therein. Lance holder ~uide housing 12 includes an elongated lower portion 16 and a wider upper~ portion-14.- Uppe-r portion 14 provides an engaging surface 42 ~FigO 3) for enga~ing the resilient springs 22, 24 depending from the inte-gral top or handle 20 of lance holder body assembly ~ 18. Top 20 serves as the ~push-button~ for acti`-vating the puncture drive motion of the assembly~
Fig. 2 i~ a side elevational view of the assembly of Fig. 1 as viewed from the right-hand ~ end thereof. As can be seen from a comparison of .~
: .
~ `, .
.
.
Figs. 1 and 2, the assembly is wider in one dimen-sion than the other providing a generally rec-tangular assembly. It will be understood by practitioners-in-the-art, however, that lancet assembly 10 can be annular in cross section.
Referring now to Fi9. 3, a partial sectional view of the assembly of Figs. 1 and 2 is shown As can be seen in ~ig. 3, the elongated lance holder body assembly 18 includes lance holder 26 posi-tioned at the opposite end thereof from the inte-gral push-button top 20. Lance holder 26 holds lance blade 28 therein. As can be seen, blade 28 is a flat wedge~shaped blade for providing a comparatively elongated puncture wound. Lance holder 26 includes a flat end edge 32, which extends beyond the end of the housing 16, though the lower end opening 30 thereof in order to engage the skin surface and flatten it during the puncture motion.
Housing portion 14 includes an integral upwardly extending wall 40 which defines a space 41 for receiving the lower ends of` the resilient springs 22, 24. The springs in the lower position of lance holder body 18 engage the flat lower surace 42 of the area 41 in the compressed posi-tion of springs 22, 24. Further details of the action of springs 22, 24 may be learned from the above-noted co-pending application Serial Number 652,3~6.
3~ Lance holder body 18 includes, as will bè
seen in Fig. 3, spaced integral abutments 34 r 36 or ridges around the perimeter thereof. Abutment 34 cooperates with an internally extending integral ~ abutment 46 on housing 16 at the upper end there-.
~ 3 P-826 of. Abutment 46 defines the upper end of passage 54 in housing 16 through which lance holder body 18 together with spring 31, reciprocates Thus, in the initial assembly of the lancet of the invention, lance holder body housing 18 is pushed into the elongated passage 54 in housing 16. In doing so, abutment 36 is pressed past abutment 46. With this arrangement, housing 18 is prevented from slipping out of housing 16 because abutment 36 engages abutment or stop 46, and prevents such disassembly. ThUs, in the position shown in Fig. 3, the lancet assembly of the inven-tion is in a position prior to the puncture move-ment. In this position, the lower end of blade 28 is positioned inside opening 30 of housing 16.
Also in this position, annular abutment 34 is positioned above ~as shown in ~ig. 3) cooperating abutment 46.
Thus, the user places end 30 of housing 16 in position on the area to be punctured by the lancet. Thereafter, the user pushes the push-button top 20 and forces abutment 3~4 past abutment 46. This causes a snap action thrust forward which in turn causes blade 28 to engage and puncture the skin surface. During the course of this movement, the lower end of leaf springs -~2, 24 engage surface 42. During a further movement, the springs 22, 24 are further compressed which dampens the forward thrust~ once the snap action takes place. Also, spring 31 is first compressed which also serves to dampen this forward thrust. For this reason, there is no harsh impact of the lower end 32 of lancet holder 26 during the puncture movement. This - damping, therefore, minimizes the effect upon a patient during the entire procedureO Neverthelesst . ,;
.
~Z6~ 3 P-826 g the square flat surface 32 of the lower end of the lance holder 26 serves to spread the area in the vicinity of the puncture so as to make a clean puncture break in the skin.
Further movement of body assembly 18 through passage 54 in housing 16 causes spring 31 to begin its return movement to its original relaxed state.
At this point, abutment surface 54 on spring 31 engages the lower end 56 of passage 54 which defines the extent of movement of body assembly 18 in passage 54, which in turn defines and controls the depth of puncture.
once this happens, the various parts return to the rest position following the puncture move-ment. That is, springs ~2, 24 move to a relaxedstate, as shown in Fig. 1, but with the lower ends of springs 22, 24 still engaging surface 42. The reason for this is the interaction of abutment 34 with abutment 46. In the return direction of movement of body assembly 18 in passage 5~, abut-ment 46 serves as a stop for abutment 34. The relaxing of springs 22, 24 and 31 a`nd their return movement also causes, automatically, the retraction of blade 28 through opening 30 to a non-exposed position.
- Referring now--to Fig. 4, a further feature of the invention is the configuration of the side panels of housing portion 14 with indentations 50 t 52 on either side thereof. These indentations serve to provide finger grip surfaces for the user during a grasping and holding of the assembly for causing the puncture movement., ~ hus, as will be appreciated from the above, there is provided in accordance with this inven-"~
.....
, ~. .: ~ :
. .
12~8~3 P~-826 -lD-tion, a retractable throw-away lancet assembly which is relatively inexpensive and uncomplicated in its construction, but which, nevertheless, provides a structure for imparting a precise drive and puncture with a precise withdrawal of the lancet in one rapid operation of the assembly The assembly is comprised of two moldable parts which can be mass produced, as will be understood, from a variety of materials including, for example, polyethylene and polypropylene. Materials should be selected which will provide a degree of resil-iency for the purpose of providing cooperative movement relative to the cooperating abutments of the assembly, as well as the resiliency required for the springs of the assembly.
While the Eorms of apparatus herein de-scribed constitute preferred embodiments of the invention, it is to be understood that the inven-tion is not limited to these precise forms of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in the appendea claims. For example, whereas one form of spring arrangement is shown for the multi-purpose resiliency required in the arrangement herein, it should be understood that other configurations of integral spring or resilient force may be utilized. Moreover, as stated above, the assembly may be arranged to have a different configuration in cross section~ The assembly may be, for example, square or round.
, :-,.
,,
Sharp-pointed lancets have been employed for ~any years to make a quick puncture or penetration ~f a patient's skin in order to provide a small outflow of blood. Various tests may be employed with only a ~mall amount of blood so that the blood flowing from a finger prick is normally suficient to carry out a substantial number o~ tests.
~owever, due to the ensitive nerve endings in the fingertip area, this procedure sometimes induces a significant amount of pain in ~he patientr even though the skin puncture produces minimal cutting.
~oreover, as will be understood, many people are ~rightened by ~he appearance of a blade or skin puncturing apparatus of any kind wherein the cutting portiDn is available for them to see prior ~, .
. . . ~ ~ -: ,.~ ' . ,: ~
` ~26~3 P-826 to the puncture. In order to minimize potential pain, as well as reduce apprehension in a patient, it is desirable to make the thrust of the lancet through the patient's skin rapidly and to provide a rapid withdrawal and shielding of the lancet.
Other problems involved with such procedures include contamination by the technician in the procedures involved in taking the blood sample.
That is, the patient may have some disease, and if the lancet blade which has carried out the puncture action should prick the skin of a technician subsequent to the initial puncture, the technician and/or nurse and/or doctor involved may be exposed to contamination. Thus, it is important to have automatic retraction of the blade immediately a~ter puncture so that the blade is not exposed for an accidental puncture of someone else's skin.
Spring-loaded lancets o~ different types and forms have been well known and are typified, for example, by U.S. Patents 55,620; 1,135/465;
3~30,959 4,139,011; 4,203,446; 4,230,118;
4,449,529 and 4,388,925.
U.S. Patent 4,203,446, noted above, is significant in that it teaches the puncture of the skin of a patient with a lancet which is retracted back into the device after piercing the patient's skin. In the patented device, the downward motion of the lancet is initiated by impact of a spring-loaded hammer, and as this motion continues the spring potential decreases. At the time of the impact, the return spring begins to compress and increase potential energy. When the potential energy in the return spring under compression ex~eeds the potential energy in the driving spring, `` ~26;~3 compression of the return spring ends and decompression begins. This, then reverses the motion of the lancet.
Howeverj impact is necessary to compress ~he return spring and increase its potential energy rapidly. Without the impact force, the spring forces would approach equilibrium and then there would be no reverse mOtiGn in order to retract the lancet out of the patient's skin. Moreover, since spring potential is critical in thi~ patented device, a conical spring is relied upon to overcome recoil due to the surge of the larger return spring. Other problems include, of course, the cost of such an involved assembly. Despite the foregoing inventions, improvements in this field of lancets are still being sought.
With the invention described in U. S. Patent number 4,616,649, an improved automatic retractable lancet assembly is provided which is relatively simple of construction and easily moldable into two pieces ~f plastic ma-terial. Nevertheless, this simple construction provides, through the utilization of two an~ular abutments on a lancet holder body assembly coop-~5 eratiny with a single annular integral abu~ment ona lance holder guide~ a ~nap action drive for the la~cet to rapidly drive the lancet for tbe puncture action, with an automatic retraction o~ the lancet once the puncture has been completed. Moreover, 3~ in~egral with ~he lance holder body assembly are springs which firfit provide a damping of the lancet drive, once ~he ~ooper~ting abutments provide the ~nap action, and, secondly, provide automatic retraction of the lancet. ~he lance holder portion .
~- , , . . . ~ . , , -: , ~6~0~3 p-~26 _~ _ of the assembly includes a skin compacting front end edge surrounding the lancet blade which auto-matically engages the skin around the puncture site and moves the skin to provide an accurate skin positioning area at the puncture site, so that the lancet makes a clean puncture rapidly in the area desired.
An improvement is provided with this inven-tion in that an additional spring is incorporated into one of the two pieces forming the device.
That is, positioned between the top ~push-button~
of the lance holder body and the lance is an additional spring which enhances the spring move-ments of the device described in the above-noted co-pending application. The additional spring not only increases the damping of the snap-action drive of the assembly, but also improves the rapidity with which the lancet is withdrawn, once puncture has been made~ Moreover, this additional spring forms part of and is simultaneously molded during the formation of the lance holder body of the assembly of this invention.
The additional spring forming part of the single molded lance holder body is S-shaped in a form similar to that described in U.S. Patent 4,449,529. As such the spring is maintained in a relaxed condition before and after use, with a ~ `
momentarily extended condition during the snap-action drive. Because of its position, the spring has the effect of damping the thrust forward so as to reduce impact of the lancet body against the skin surface, and to enhance rapid withdrawal immediately upon piercing of the skin.
In accordance with prlnciples of the present .
.
. , . .
. . . ~ .
invention, the desired functions are achieved by virtue of a very simplified two-piece structure including a lance holder guide comprised of a simple elongated piece of semi-rigid material such as a plastic formed into an elongated body having substantially rectangular passage therethrough.
Movable in the passage is an elongated lance holder assembly arranged to have an integral activation handle at one end thereof, and an arrangement for connection of a lance on the opposite end.
The lance holder body assembly, aside from the integral S-spring noted above, includes two spaced integral ridges around the perimeter thereof forming abutments, as well as integral resilient means in the form of leaf springs depending from the handle end of the lance holder body assembly.
The abutments cooperate with a single integral abutment around the internal perimeter of the lance holder guide or housing for holding the two parts together prior to use, for providing the snap action in the drive of the lancet to provide the desired puncture, and for providing a stop in the return direction of movement of the lance holder.
These two molded pieces together with the actual lancet blade provide an appropriate and accurate skin puncture for obtaining the desired quantity of blood for carrying out appropriate tests. ~ore-over, the arrangement is such that it may be immediately discarded without any danger of con-tamination by subsequent puncture of those who mayhandle the used lancet assembly. Nevertheless, even though the structure provîdes the several desired functions of a modern lancet in use, it is - easily manufactured by conventional molding pro-cedures.
, i .,.~"' '- ' `~ .
. .:
~Z6~ 3 other objects and advantages of this inven-tion will be apparent from the following descrip-tion, the accompanying drawings and the appended claims.
Description of the ~rawings Fig. 1 is a side elevational view of the lancet assembly of the invention Fig. 2 is an end view of the lancet assembly of ~ig. 1 as viewed from the right-hand end thereof Fig. 3 is a partial sectional view of the assembly of Fig. 2 taken along lines 3-3 of Fig. 2;
and Fig. 4 is a top plan view of the apparatus of Fig. 1.
Detailed Description of the Invention -Referring to the drawings in which like reference characters refer to like parts throughout the several views thereof, Fig. 1 shows the lancet assembly 10 of the invention from one side, and includes generally rectangular lancèt holder guide housing 12 and lance holder body assembly 18 reciprocable therein. Lance holder ~uide housing 12 includes an elongated lower portion 16 and a wider upper~ portion-14.- Uppe-r portion 14 provides an engaging surface 42 ~FigO 3) for enga~ing the resilient springs 22, 24 depending from the inte-gral top or handle 20 of lance holder body assembly ~ 18. Top 20 serves as the ~push-button~ for acti`-vating the puncture drive motion of the assembly~
Fig. 2 i~ a side elevational view of the assembly of Fig. 1 as viewed from the right-hand ~ end thereof. As can be seen from a comparison of .~
: .
~ `, .
.
.
Figs. 1 and 2, the assembly is wider in one dimen-sion than the other providing a generally rec-tangular assembly. It will be understood by practitioners-in-the-art, however, that lancet assembly 10 can be annular in cross section.
Referring now to Fi9. 3, a partial sectional view of the assembly of Figs. 1 and 2 is shown As can be seen in ~ig. 3, the elongated lance holder body assembly 18 includes lance holder 26 posi-tioned at the opposite end thereof from the inte-gral push-button top 20. Lance holder 26 holds lance blade 28 therein. As can be seen, blade 28 is a flat wedge~shaped blade for providing a comparatively elongated puncture wound. Lance holder 26 includes a flat end edge 32, which extends beyond the end of the housing 16, though the lower end opening 30 thereof in order to engage the skin surface and flatten it during the puncture motion.
Housing portion 14 includes an integral upwardly extending wall 40 which defines a space 41 for receiving the lower ends of` the resilient springs 22, 24. The springs in the lower position of lance holder body 18 engage the flat lower surace 42 of the area 41 in the compressed posi-tion of springs 22, 24. Further details of the action of springs 22, 24 may be learned from the above-noted co-pending application Serial Number 652,3~6.
3~ Lance holder body 18 includes, as will bè
seen in Fig. 3, spaced integral abutments 34 r 36 or ridges around the perimeter thereof. Abutment 34 cooperates with an internally extending integral ~ abutment 46 on housing 16 at the upper end there-.
~ 3 P-826 of. Abutment 46 defines the upper end of passage 54 in housing 16 through which lance holder body 18 together with spring 31, reciprocates Thus, in the initial assembly of the lancet of the invention, lance holder body housing 18 is pushed into the elongated passage 54 in housing 16. In doing so, abutment 36 is pressed past abutment 46. With this arrangement, housing 18 is prevented from slipping out of housing 16 because abutment 36 engages abutment or stop 46, and prevents such disassembly. ThUs, in the position shown in Fig. 3, the lancet assembly of the inven-tion is in a position prior to the puncture move-ment. In this position, the lower end of blade 28 is positioned inside opening 30 of housing 16.
Also in this position, annular abutment 34 is positioned above ~as shown in ~ig. 3) cooperating abutment 46.
Thus, the user places end 30 of housing 16 in position on the area to be punctured by the lancet. Thereafter, the user pushes the push-button top 20 and forces abutment 3~4 past abutment 46. This causes a snap action thrust forward which in turn causes blade 28 to engage and puncture the skin surface. During the course of this movement, the lower end of leaf springs -~2, 24 engage surface 42. During a further movement, the springs 22, 24 are further compressed which dampens the forward thrust~ once the snap action takes place. Also, spring 31 is first compressed which also serves to dampen this forward thrust. For this reason, there is no harsh impact of the lower end 32 of lancet holder 26 during the puncture movement. This - damping, therefore, minimizes the effect upon a patient during the entire procedureO Neverthelesst . ,;
.
~Z6~ 3 P-826 g the square flat surface 32 of the lower end of the lance holder 26 serves to spread the area in the vicinity of the puncture so as to make a clean puncture break in the skin.
Further movement of body assembly 18 through passage 54 in housing 16 causes spring 31 to begin its return movement to its original relaxed state.
At this point, abutment surface 54 on spring 31 engages the lower end 56 of passage 54 which defines the extent of movement of body assembly 18 in passage 54, which in turn defines and controls the depth of puncture.
once this happens, the various parts return to the rest position following the puncture move-ment. That is, springs ~2, 24 move to a relaxedstate, as shown in Fig. 1, but with the lower ends of springs 22, 24 still engaging surface 42. The reason for this is the interaction of abutment 34 with abutment 46. In the return direction of movement of body assembly 18 in passage 5~, abut-ment 46 serves as a stop for abutment 34. The relaxing of springs 22, 24 and 31 a`nd their return movement also causes, automatically, the retraction of blade 28 through opening 30 to a non-exposed position.
- Referring now--to Fig. 4, a further feature of the invention is the configuration of the side panels of housing portion 14 with indentations 50 t 52 on either side thereof. These indentations serve to provide finger grip surfaces for the user during a grasping and holding of the assembly for causing the puncture movement., ~ hus, as will be appreciated from the above, there is provided in accordance with this inven-"~
.....
, ~. .: ~ :
. .
12~8~3 P~-826 -lD-tion, a retractable throw-away lancet assembly which is relatively inexpensive and uncomplicated in its construction, but which, nevertheless, provides a structure for imparting a precise drive and puncture with a precise withdrawal of the lancet in one rapid operation of the assembly The assembly is comprised of two moldable parts which can be mass produced, as will be understood, from a variety of materials including, for example, polyethylene and polypropylene. Materials should be selected which will provide a degree of resil-iency for the purpose of providing cooperative movement relative to the cooperating abutments of the assembly, as well as the resiliency required for the springs of the assembly.
While the Eorms of apparatus herein de-scribed constitute preferred embodiments of the invention, it is to be understood that the inven-tion is not limited to these precise forms of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in the appendea claims. For example, whereas one form of spring arrangement is shown for the multi-purpose resiliency required in the arrangement herein, it should be understood that other configurations of integral spring or resilient force may be utilized. Moreover, as stated above, the assembly may be arranged to have a different configuration in cross section~ The assembly may be, for example, square or round.
, :-,.
,,
Claims (10)
1. A lancet assembly comprising, (a) an elongated housing;
(b) a passage extending through said housing with a lance opening at one end thereof;
(c) an elongated lancet body reciprocable in said passage (d) a lance blade positioned in said lancet body at one end thereof;
(e) handle means on said lancet body at the end thereof opposite said lance blade;
the improvement characterized by (f) a plurality of spaced apart first integral abutment means on said housing and extending into said passage;
(g) a plurality of spaced apart second integral abutment means on said lancet body for cooperating with said first abutment means;
(h) first integral resilient means on said handle means and extending between said handle means and said housing;
(i) second resilient means in said lancet body;
(j) whereby pushing said handle means causes said body to move through said passage in a first direction making one of said second abutment means to move past one of said first abutment means causing a snap-action in a puncture direction and in turn causing said lancet blade to move through said lance opening;
(k) said pushing first movement compressing said first and second resilient means and damping said snap-action;
(l) said pushing first movement stopped by engagement of one of said second abutment means with one of said first abutment means; and (m) release of said handle means causing relaxation of said first and second resilient means and movement of said lancet body in said passage in a non-puncture direction until engagement of the other one of said second abutment means with the other one of said first abutment means for maintaining said lance blade within said housing in a non-contaminating position.
(b) a passage extending through said housing with a lance opening at one end thereof;
(c) an elongated lancet body reciprocable in said passage (d) a lance blade positioned in said lancet body at one end thereof;
(e) handle means on said lancet body at the end thereof opposite said lance blade;
the improvement characterized by (f) a plurality of spaced apart first integral abutment means on said housing and extending into said passage;
(g) a plurality of spaced apart second integral abutment means on said lancet body for cooperating with said first abutment means;
(h) first integral resilient means on said handle means and extending between said handle means and said housing;
(i) second resilient means in said lancet body;
(j) whereby pushing said handle means causes said body to move through said passage in a first direction making one of said second abutment means to move past one of said first abutment means causing a snap-action in a puncture direction and in turn causing said lancet blade to move through said lance opening;
(k) said pushing first movement compressing said first and second resilient means and damping said snap-action;
(l) said pushing first movement stopped by engagement of one of said second abutment means with one of said first abutment means; and (m) release of said handle means causing relaxation of said first and second resilient means and movement of said lancet body in said passage in a non-puncture direction until engagement of the other one of said second abutment means with the other one of said first abutment means for maintaining said lance blade within said housing in a non-contaminating position.
2. The lancet assembly of claim 1, further characterized by (a) said spaced apart first integral abutment means comprising (1) an abutment extending into said passage around the perimeter thereof and at the end of said passage opposite said lance opening;
and (2) a ledge formed by the end wall of said passage adjacent said lance opening; and (b) said spaced apart second integral abutment means being two spaced apart abutments integral with said elongated lancet body and extending around the perimeter thereof.
and (2) a ledge formed by the end wall of said passage adjacent said lance opening; and (b) said spaced apart second integral abutment means being two spaced apart abutments integral with said elongated lancet body and extending around the perimeter thereof.
3. The lancet assembly of claim 1, further characterized by (a) said first resilient means being a pair of resilient leaf springs extending downwardly from said handle means for engaging said housing.
4. The lancet assembly of claim 1, further characterized by (a) said second resilient means is a flat coil spring having a plurality of compressible folds lying substantially along a flat plane in said passage; and (b) said flat coil spring forming an integral part of said lancet body.
5. The lancet assembly of claim 4, further characterized by (a) said lancet body including said first and second spring means is comprised of a single piece of plastic material.
6. The lancet assembly of Claim 1, further characterized by (a) a lance blade holder integral with said lancet body on the end of said lancet body opposite said handle;
(b) said lance blade holder for mounting said lance blade; and (c) said lance blade holder having a flat skin engaging surface surrounding said lance blade.
(b) said lance blade holder for mounting said lance blade; and (c) said lance blade holder having a flat skin engaging surface surrounding said lance blade.
7. The lancet assembly of Claim 1, further characterized by (a) said handle means having finger engaging surface thereon.
8. The lancet assembly of claim 1, further characterized by said housing and lancet body being rectangular in cross section.
9. The lancet assembly of claim 1, further characterized by (a) said housing and said lancet body com-prised of a resilient plastic material.
10. The lancet assembly of Claim 1, further characterized by (a) said lance blade is a flat wedge-shaped blade.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/652,386 US4616649A (en) | 1984-09-20 | 1984-09-20 | Lancet |
US06/743,231 US4677979A (en) | 1984-09-20 | 1985-06-11 | Lancet |
US743,231 | 1985-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1268093A true CA1268093A (en) | 1990-04-24 |
Family
ID=51727171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000500093A Expired - Fee Related CA1268093A (en) | 1984-09-20 | 1986-01-22 | Disposable retracting medical lancet |
Country Status (12)
Country | Link |
---|---|
US (2) | US4616649A (en) |
EP (2) | EP0178384B1 (en) |
JP (2) | JPS6179450A (en) |
AU (2) | AU569988B2 (en) |
BR (2) | BR8503260A (en) |
CA (1) | CA1268093A (en) |
DE (2) | DE3584606D1 (en) |
DK (1) | DK263986A (en) |
ES (1) | ES296468Y (en) |
MX (1) | MX163069B (en) |
NZ (1) | NZ214920A (en) |
ZA (1) | ZA86878B (en) |
Families Citing this family (183)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE32922E (en) * | 1983-01-13 | 1989-05-16 | Paul D. Levin | Blood sampling instrument |
US4616649A (en) | 1984-09-20 | 1986-10-14 | Becton, Dickinson And Company | Lancet |
US4873993A (en) * | 1986-07-22 | 1989-10-17 | Personal Diagnostics, Inc. | Cuvette |
US4735203A (en) * | 1986-12-12 | 1988-04-05 | Ryder International Corporation | Retractable lancet |
GB8710470D0 (en) * | 1987-05-01 | 1987-06-03 | Mumford Ltd Owen | Blood sampling devices |
US4850973A (en) * | 1987-10-16 | 1989-07-25 | Pavel Jordon & Associates | Plastic device for injection and obtaining blood samples |
US4924879A (en) * | 1988-10-07 | 1990-05-15 | Brien Walter J O | Blood lancet device |
US4920977A (en) * | 1988-10-25 | 1990-05-01 | Becton, Dickinson And Company | Blood collection assembly with lancet and microcollection tube |
US4889117A (en) * | 1989-02-17 | 1989-12-26 | Stevens Peter A | Disposable lancet |
US4990154A (en) * | 1989-06-19 | 1991-02-05 | Miles Inc. | Lancet assembly |
CA2055486C (en) * | 1989-11-27 | 1996-11-26 | Anders Magnusson | Puncture guide for computer tomography |
SE465012B (en) * | 1989-12-08 | 1991-07-15 | Freja Invest Kommanditbolag | CLEANING AID FOR ACHIEVEMENT OF POINTING OF BODY PARTS |
US5250066A (en) * | 1990-03-19 | 1993-10-05 | Becton Dickinson And Company | Plastic pointed articles and method for their preparation |
US5152775A (en) * | 1990-10-04 | 1992-10-06 | Norbert Ruppert | Automatic lancet device and method of using the same |
US5645556A (en) * | 1990-12-18 | 1997-07-08 | Yoon; Inbae | Safety penetrating instrument with triggered penetrating member retraction and single or multiple safety member protrusion |
US5645557A (en) * | 1990-12-18 | 1997-07-08 | Yoon; Inbae | Safety penetrating instrument with triggered penetrating member retraction and safety member protrusion |
US5827315A (en) * | 1994-01-04 | 1998-10-27 | Yoon; Inbae | Safety penetrating instrument with penetrating member protected after penetration to predetermined depth |
SE468620B (en) * | 1991-05-07 | 1993-02-22 | Hans Enstroem | DEPOSITION OF SINGLE TYPE FOR PRESENTING SKIN |
US5445617A (en) * | 1991-11-27 | 1995-08-29 | Yoon; Inbae | Automatic retractable safety penetrating instrument for portal sleeve introduction and method of use |
US5360405A (en) * | 1991-11-27 | 1994-11-01 | Inbae Yoon | Automatic retractable safety penetrating instrument |
US5330432A (en) * | 1991-12-06 | 1994-07-19 | Inbae Yoon | Retractable safety penetrating instrument |
US5324268A (en) * | 1991-12-16 | 1994-06-28 | Inbae Yoon | Trocar with safety shield |
US5645076A (en) * | 1991-08-14 | 1997-07-08 | Yoon; Inbae | Automatic retractable safety penetrating instrument |
JPH07500995A (en) * | 1991-11-12 | 1995-02-02 | アクティムド・ラボラトリーズ・インコーポレイテッド | lancet device |
US5779680A (en) * | 1991-11-27 | 1998-07-14 | Yoon; Inbae | Retractable safety needle instrument with movable safety member |
US5665072A (en) * | 1991-11-27 | 1997-09-09 | Yoon; Inbae | Safety needle instrument with movable cannula and needle |
US5573511A (en) * | 1991-11-27 | 1996-11-12 | Yoon; Inbae | Retractable safety penetrating instrument with safety probe |
WO1993010836A1 (en) * | 1991-11-27 | 1993-06-10 | Inbae Yoon | Retractable safety penetrating instrument for portal sleeve introduction |
US5603719A (en) * | 1991-11-27 | 1997-02-18 | Yoon; Inbae | Retractable safety trocar with multiple triggering and/or moving components |
US5584849A (en) * | 1991-11-27 | 1996-12-17 | Yoon; Inbae | Retractable safety penetrating instrument with safety shield and multiple triggering and/or moving components |
US5707362A (en) * | 1992-04-15 | 1998-01-13 | Yoon; Inbae | Penetrating instrument having an expandable anchoring portion for triggering protrusion of a safety member and/or retraction of a penetrating member |
DE4212723C1 (en) * | 1992-04-16 | 1993-11-04 | Arta Plast Ab Tyresoe | LANCETTE DEVICE FOR POINTING THE SKIN |
JP2561697Y2 (en) * | 1992-08-28 | 1998-02-04 | アプルス株式会社 | Lancet |
CA2079192C (en) * | 1992-09-25 | 1995-12-26 | Bernard Strong | Combined lancet and multi-function cap and lancet injector for use therewith |
JP3144718B2 (en) * | 1992-10-26 | 2001-03-12 | アプルス株式会社 | Blood collection device |
US5395387A (en) * | 1993-02-26 | 1995-03-07 | Becton Dickinson And Company | Lancet blade designed for reduced pain |
US5439473A (en) * | 1993-12-13 | 1995-08-08 | Modulohm A/S | Safety lancet |
US5350392A (en) * | 1994-02-03 | 1994-09-27 | Miles Inc. | Lancing device with automatic cocking |
US5514152A (en) * | 1994-08-16 | 1996-05-07 | Specialized Health Products, Inc. | Multiple segment encapsulated medical lancing device |
US5527333A (en) * | 1994-09-09 | 1996-06-18 | Graphic Controls Corporation | Slicing disposable blood sampling device |
US5628765A (en) * | 1994-11-29 | 1997-05-13 | Apls Co., Ltd. | Lancet assembly |
US5571132A (en) * | 1995-06-06 | 1996-11-05 | International Technidyne Corporation | Self activated finger lancet |
CA2201317C (en) * | 1995-07-28 | 2007-08-28 | Apls Co., Ltd. | Assembly for adjusting pricking depth of lancet |
US5662127A (en) * | 1996-01-17 | 1997-09-02 | Bio-Plas, Inc. | Self-contained blood withdrawal apparatus and method |
US20020010406A1 (en) | 1996-05-17 | 2002-01-24 | Douglas Joel S. | Methods and apparatus for expressing body fluid from an incision |
US7828749B2 (en) | 1996-05-17 | 2010-11-09 | Roche Diagnostics Operations, Inc. | Blood and interstitial fluid sampling device |
US7235056B2 (en) | 1996-05-17 | 2007-06-26 | Amira Medical | Body fluid sampling device and methods of use |
EP1579814A3 (en) | 1996-05-17 | 2006-06-14 | Roche Diagnostics Operations, Inc. | Methods and apparatus for sampling and analyzing body fluid |
DE69822487T2 (en) * | 1997-06-02 | 2005-03-24 | Paul Viranyi | BRACKET OF LANZETTS TO POINT UP THE SKIN |
US5954738A (en) * | 1997-07-31 | 1999-09-21 | Bayer Corporation | Blood sampling device with lancet damping system |
US5938679A (en) * | 1997-10-14 | 1999-08-17 | Hewlett-Packard Company | Apparatus and method for minimally invasive blood sampling |
US6706000B2 (en) * | 1997-11-21 | 2004-03-16 | Amira Medical | Methods and apparatus for expressing body fluid from an incision |
US6036924A (en) | 1997-12-04 | 2000-03-14 | Hewlett-Packard Company | Cassette of lancet cartridges for sampling blood |
US6391005B1 (en) | 1998-03-30 | 2002-05-21 | Agilent Technologies, Inc. | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth |
US6053930A (en) * | 1998-05-11 | 2000-04-25 | Ruppert; Norbert | Single use lancet assembly |
AUPQ089299A0 (en) | 1999-06-10 | 1999-07-01 | N & V Curie Pty Ltd | Disposable lancet device |
SG85117A1 (en) | 1999-06-18 | 2001-12-19 | Surgilance Pte Ltd | Lancet assembly |
JP4210782B2 (en) | 1999-10-13 | 2009-01-21 | アークレイ株式会社 | Blood sampling position indicator |
CA2287757A1 (en) | 1999-10-29 | 2001-04-29 | Medical Plastic Devices M.P.D. Inc. | Disposable lancet |
DE10053974A1 (en) | 2000-10-31 | 2002-05-29 | Roche Diagnostics Gmbh | Blood collection system |
US8641644B2 (en) | 2000-11-21 | 2014-02-04 | Sanofi-Aventis Deutschland Gmbh | Blood testing apparatus having a rotatable cartridge with multiple lancing elements and testing means |
WO2002056751A2 (en) * | 2001-01-22 | 2002-07-25 | Roche Diagnostics Gmbh | Lancet device having capillary action |
US6540763B2 (en) * | 2001-02-20 | 2003-04-01 | Medisys Asia Pacific Pte Ltd. | Lancet device with retractable sharps member |
US20020188223A1 (en) | 2001-06-08 | 2002-12-12 | Edward Perez | Devices and methods for the expression of bodily fluids from an incision |
US9795747B2 (en) | 2010-06-02 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Methods and apparatus for lancet actuation |
DE60238914D1 (en) | 2001-06-12 | 2011-02-24 | Pelikan Technologies Inc | INTEGRATED BLOOD SAMPLE ANALYSIS SYSTEM WITH MULTI-USE SAMPLING MODULE |
US9226699B2 (en) | 2002-04-19 | 2016-01-05 | Sanofi-Aventis Deutschland Gmbh | Body fluid sampling module with a continuous compression tissue interface surface |
AU2002348683A1 (en) | 2001-06-12 | 2002-12-23 | Pelikan Technologies, Inc. | Method and apparatus for lancet launching device integrated onto a blood-sampling cartridge |
US7316700B2 (en) | 2001-06-12 | 2008-01-08 | Pelikan Technologies, Inc. | Self optimizing lancing device with adaptation means to temporal variations in cutaneous properties |
US7041068B2 (en) | 2001-06-12 | 2006-05-09 | Pelikan Technologies, Inc. | Sampling module device and method |
ES2357887T3 (en) | 2001-06-12 | 2011-05-03 | Pelikan Technologies Inc. | APPARATUS FOR IMPROVING THE BLOOD OBTAINING SUCCESS RATE FROM A CAPILLARY PUNCTURE. |
US7981056B2 (en) | 2002-04-19 | 2011-07-19 | Pelikan Technologies, Inc. | Methods and apparatus for lancet actuation |
US9427532B2 (en) | 2001-06-12 | 2016-08-30 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
EP1404232B1 (en) | 2001-06-12 | 2009-12-02 | Pelikan Technologies Inc. | Blood sampling apparatus and method |
WO2002100460A2 (en) | 2001-06-12 | 2002-12-19 | Pelikan Technologies, Inc. | Electric lancet actuator |
US8337419B2 (en) | 2002-04-19 | 2012-12-25 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
US7344894B2 (en) | 2001-10-16 | 2008-03-18 | Agilent Technologies, Inc. | Thermal regulation of fluidic samples within a diagnostic cartridge |
US7708701B2 (en) | 2002-04-19 | 2010-05-04 | Pelikan Technologies, Inc. | Method and apparatus for a multi-use body fluid sampling device |
US9248267B2 (en) | 2002-04-19 | 2016-02-02 | Sanofi-Aventis Deustchland Gmbh | Tissue penetration device |
US7331931B2 (en) | 2002-04-19 | 2008-02-19 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7410468B2 (en) | 2002-04-19 | 2008-08-12 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7232451B2 (en) | 2002-04-19 | 2007-06-19 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US9795334B2 (en) | 2002-04-19 | 2017-10-24 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US7291117B2 (en) | 2002-04-19 | 2007-11-06 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7297122B2 (en) | 2002-04-19 | 2007-11-20 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7674232B2 (en) | 2002-04-19 | 2010-03-09 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7717863B2 (en) | 2002-04-19 | 2010-05-18 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7547287B2 (en) | 2002-04-19 | 2009-06-16 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US9314194B2 (en) | 2002-04-19 | 2016-04-19 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
US7524293B2 (en) | 2002-04-19 | 2009-04-28 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US8579831B2 (en) | 2002-04-19 | 2013-11-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US8360992B2 (en) | 2002-04-19 | 2013-01-29 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US7175642B2 (en) | 2002-04-19 | 2007-02-13 | Pelikan Technologies, Inc. | Methods and apparatus for lancet actuation |
US8702624B2 (en) | 2006-09-29 | 2014-04-22 | Sanofi-Aventis Deutschland Gmbh | Analyte measurement device with a single shot actuator |
US7485128B2 (en) | 2002-04-19 | 2009-02-03 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7563232B2 (en) | 2002-04-19 | 2009-07-21 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7901362B2 (en) | 2002-04-19 | 2011-03-08 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US8372016B2 (en) | 2002-04-19 | 2013-02-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for body fluid sampling and analyte sensing |
US7491178B2 (en) | 2002-04-19 | 2009-02-17 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7229458B2 (en) | 2002-04-19 | 2007-06-12 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7141058B2 (en) | 2002-04-19 | 2006-11-28 | Pelikan Technologies, Inc. | Method and apparatus for a body fluid sampling device using illumination |
US7648468B2 (en) | 2002-04-19 | 2010-01-19 | Pelikon Technologies, Inc. | Method and apparatus for penetrating tissue |
US7976476B2 (en) | 2002-04-19 | 2011-07-12 | Pelikan Technologies, Inc. | Device and method for variable speed lancet |
US7244265B2 (en) | 2002-04-19 | 2007-07-17 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
AU2003231749A1 (en) | 2002-04-19 | 2003-11-03 | Pelikan Technologies, Inc. | Device and method for variable speed lancet |
US8784335B2 (en) | 2002-04-19 | 2014-07-22 | Sanofi-Aventis Deutschland Gmbh | Body fluid sampling device with a capacitive sensor |
US7371247B2 (en) | 2002-04-19 | 2008-05-13 | Pelikan Technologies, Inc | Method and apparatus for penetrating tissue |
US7909778B2 (en) | 2002-04-19 | 2011-03-22 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7374544B2 (en) | 2002-04-19 | 2008-05-20 | Pelikan Technologies, Inc. | Method and apparatus for penetrating tissue |
US7892183B2 (en) | 2002-04-19 | 2011-02-22 | Pelikan Technologies, Inc. | Method and apparatus for body fluid sampling and analyte sensing |
US8221334B2 (en) | 2002-04-19 | 2012-07-17 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for penetrating tissue |
US8267870B2 (en) | 2002-04-19 | 2012-09-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for body fluid sampling with hybrid actuation |
DE10223558A1 (en) * | 2002-05-28 | 2003-12-11 | Roche Diagnostics Gmbh | System useful in withdrawing blood for diagnostic purposes, has housing, lancet guide and lancet drive provided with drive spring, cocking device, drive rotor and outputs side coupling mechanism |
US7572237B2 (en) | 2002-11-06 | 2009-08-11 | Abbott Diabetes Care Inc. | Automatic biological analyte testing meter with integrated lancing device and methods of use |
US20040127818A1 (en) * | 2002-12-27 | 2004-07-01 | Roe Steven N. | Precision depth control lancing tip |
US8574895B2 (en) | 2002-12-30 | 2013-11-05 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus using optical techniques to measure analyte levels |
EP1589873B1 (en) * | 2003-01-29 | 2011-12-21 | Roche Diagnostics GmbH | Integrated lancing test strip |
US20040176704A1 (en) * | 2003-03-04 | 2004-09-09 | Stevens Timothy A | Collection device adapted to accept cartridge for point of care system |
US20040176705A1 (en) * | 2003-03-04 | 2004-09-09 | Stevens Timothy A. | Cartridge having an integrated collection element for point of care system |
US7288102B2 (en) * | 2003-03-20 | 2007-10-30 | Facet Technologies, Llc | Lancing device with decoupled lancet |
US7494498B2 (en) * | 2003-03-24 | 2009-02-24 | Facet Technologies, Llc | Lancing device with floating lancet |
US20040254599A1 (en) * | 2003-03-25 | 2004-12-16 | Lipoma Michael V. | Method and apparatus for pre-lancing stimulation of puncture site |
ES2347248T3 (en) | 2003-05-30 | 2010-10-27 | Pelikan Technologies Inc. | PROCEDURE AND APPLIANCE FOR FLUID INJECTION. |
US7850621B2 (en) | 2003-06-06 | 2010-12-14 | Pelikan Technologies, Inc. | Method and apparatus for body fluid sampling and analyte sensing |
WO2006001797A1 (en) | 2004-06-14 | 2006-01-05 | Pelikan Technologies, Inc. | Low pain penetrating |
WO2004112602A1 (en) | 2003-06-13 | 2004-12-29 | Pelikan Technologies, Inc. | Method and apparatus for a point of care device |
PL207804B1 (en) * | 2003-07-29 | 2011-02-28 | Htl Strefa Społka Z Ograniczoną Odpowiedzialnością | Piercing apparatus |
US7338494B2 (en) * | 2003-08-19 | 2008-03-04 | Synthes (U.S.A.) | Spring-loaded awl |
GB0320283D0 (en) * | 2003-08-29 | 2003-10-01 | Owen Mumford Ltd | Improvements relating to lancets |
WO2005033659A2 (en) | 2003-09-29 | 2005-04-14 | Pelikan Technologies, Inc. | Method and apparatus for an improved sample capture device |
US9351680B2 (en) | 2003-10-14 | 2016-05-31 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for a variable user interface |
US8668656B2 (en) | 2003-12-31 | 2014-03-11 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for improving fluidic flow and sample capture |
US7822454B1 (en) | 2005-01-03 | 2010-10-26 | Pelikan Technologies, Inc. | Fluid sampling device with improved analyte detecting member configuration |
US8133246B1 (en) | 2004-04-16 | 2012-03-13 | Caribbean Medical Brokers, Inc. | Safety lancet assembly |
US7322942B2 (en) * | 2004-05-07 | 2008-01-29 | Roche Diagnostics Operations, Inc. | Integrated disposable for automatic or manual blood dosing |
WO2005110225A1 (en) * | 2004-05-17 | 2005-11-24 | Izumi-Cosmo Company, Limited | Lancet assembly |
US8828203B2 (en) | 2004-05-20 | 2014-09-09 | Sanofi-Aventis Deutschland Gmbh | Printable hydrogels for biosensors |
EP1765194A4 (en) | 2004-06-03 | 2010-09-29 | Pelikan Technologies Inc | Method and apparatus for a fluid sampling device |
US9775553B2 (en) | 2004-06-03 | 2017-10-03 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for a fluid sampling device |
US20050283177A1 (en) * | 2004-06-18 | 2005-12-22 | Tzer-Ming Chen | Disposable safety lancet |
US7766845B2 (en) * | 2004-06-21 | 2010-08-03 | Roche Diagnostics Operations, Inc. | Disposable lancet and lancing cap combination for increased hygiene |
US7955347B2 (en) * | 2004-06-25 | 2011-06-07 | Facet Technologies, Llc | Low cost safety lancet |
US7727166B2 (en) * | 2004-07-26 | 2010-06-01 | Nova Biomedical Corporation | Lancet, lancet assembly and lancet-sensor combination |
AU2005272621B2 (en) * | 2004-08-13 | 2010-11-11 | Becton, Dickinson And Company | Retractable needle syringe assembly |
KR20070058588A (en) * | 2004-10-06 | 2007-06-08 | 이즈미 가부시키가이샤 | Lancet assembly |
US7488298B2 (en) | 2004-10-08 | 2009-02-10 | Roche Diagnostics Operations, Inc. | Integrated lancing test strip with capillary transfer sheet |
US20060100656A1 (en) * | 2004-10-28 | 2006-05-11 | Olson Lorin P | Compact lancing device |
US20060100655A1 (en) * | 2004-10-28 | 2006-05-11 | Koon-Wah Leong | Combined lancing and auxiliary device |
GB2421439B (en) * | 2004-12-21 | 2009-07-29 | Owen Mumford Ltd | Skin pricking apparatus |
US8652831B2 (en) | 2004-12-30 | 2014-02-18 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for analyte measurement test time |
WO2006096630A1 (en) | 2005-03-04 | 2006-09-14 | Bayer Healthcare Llc | Lancet-release mechanism |
EP1887934B1 (en) | 2005-03-04 | 2010-07-14 | Bayer HealthCare LLC | Lancet-release mechanism |
BRPI0609635B8 (en) * | 2005-04-07 | 2021-06-22 | Becton Dickinson Co | lancet device with compression activation |
PL375837A1 (en) * | 2005-06-22 | 2006-12-27 | Htl Strefa Sp Z Oo | Apparatus for puncturing patient's skin |
EP1909647B1 (en) * | 2005-06-30 | 2011-08-10 | Bayer HealthCare, LLC | Single-puncture lancing system |
EP1919363B1 (en) | 2005-07-14 | 2010-10-20 | Bayer HealthCare, LLC | Lancing device for one skin puncture |
AR057484A1 (en) | 2005-08-04 | 2007-12-05 | Bayer Healthcare Llc | SMALL PUNCTURE DEVICE |
JPWO2007069572A1 (en) * | 2005-12-12 | 2009-05-21 | 株式会社日南 | Puncture needle device |
US20070173876A1 (en) * | 2006-01-20 | 2007-07-26 | Lifescan, Inc. | Lancing device with dampened spring |
AU2007234611A1 (en) * | 2006-11-22 | 2008-06-05 | Johnson & Johnson Consumer Companies, Inc. | Skin-piercing device for treatment of acne |
PL216241B1 (en) * | 2007-01-10 | 2014-03-31 | Htl Strefa Społka Akcyjna | Device for puncture of patient's skin |
WO2008111936A1 (en) | 2007-03-12 | 2008-09-18 | Bayer Healthcare Llc | Lancet-eject mechanism |
JP4891276B2 (en) * | 2007-08-23 | 2012-03-07 | テルモ株式会社 | Puncture device |
US9386944B2 (en) | 2008-04-11 | 2016-07-12 | Sanofi-Aventis Deutschland Gmbh | Method and apparatus for analyte detecting device |
WO2009129272A2 (en) | 2008-04-15 | 2009-10-22 | Lonnie Paulos | Tissue microfracture apparatus and methods of use |
WO2009129349A2 (en) * | 2008-04-16 | 2009-10-22 | Kim Stanley I | Single-use disposable lancing apparatus and methods |
US9375169B2 (en) | 2009-01-30 | 2016-06-28 | Sanofi-Aventis Deutschland Gmbh | Cam drive for managing disposable penetrating member actions with a single motor and motor and control system |
US8262685B2 (en) * | 2009-03-27 | 2012-09-11 | Nipro Corporation | Disposable lancing device |
US8965476B2 (en) | 2010-04-16 | 2015-02-24 | Sanofi-Aventis Deutschland Gmbh | Tissue penetration device |
US8721599B2 (en) | 2010-07-22 | 2014-05-13 | Becton, Dickinson And Company | Dual chamber passive retraction needle syringe |
US9550030B2 (en) | 2010-07-22 | 2017-01-24 | Becton, Dickinson And Company | Dual chamber syringe with retractable needle |
US8556855B2 (en) | 2010-07-22 | 2013-10-15 | Becton, Dickinson And Company | Dual chamber syringe with retractable needle |
US8556854B2 (en) | 2010-07-22 | 2013-10-15 | Becton, Dickinson And Company | Dual chamber syringe with retractable needle |
CA2829115C (en) | 2011-03-09 | 2018-09-04 | Jason Mondro | Sleeve for removable lancet of lancing device |
DK2822483T3 (en) | 2012-03-09 | 2016-01-04 | George J Sikora | Microfracture equipment |
US9301775B2 (en) * | 2013-02-18 | 2016-04-05 | Moshe Dolev | Fingernail drill |
US10238401B2 (en) | 2013-09-23 | 2019-03-26 | Arthrosurface, Inc. | Microfracture apparatuses and methods |
USD742004S1 (en) | 2014-02-18 | 2015-10-27 | “HTL-STREFA” Spólka Akcyjna | Skin incision device |
US10702395B2 (en) | 2014-10-01 | 2020-07-07 | Arthrosurface, Inc. | Microfracture apparatuses and methods |
CN104783870B (en) * | 2015-05-08 | 2017-04-12 | 珠海艾博罗生物技术有限公司 | Disposable prepuce blunt-cutting anastomat |
CN114209315A (en) * | 2015-12-21 | 2022-03-22 | 塔索公司 | Devices, systems, and methods for actuation and retraction in fluid collection |
USD806246S1 (en) | 2016-02-25 | 2017-12-26 | Steven Schraga | Lancet cover |
US10912211B2 (en) * | 2018-09-06 | 2021-02-02 | Raytheon Company | Flexure for accommodating misalignments in an assembly |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE188439C (en) * | ||||
US55620A (en) * | 1866-06-19 | Improvement in spring-lancets | ||
US1135465A (en) * | 1914-07-01 | 1915-04-13 | William M Pollock | Lancet. |
CH91724A (en) * | 1920-08-20 | 1921-11-16 | Francois Andrey | Instrument for bleeding cattle. |
CH258450A (en) * | 1948-02-25 | 1948-11-30 | Aeschlimann Eric | Instrument for bleeding animals. |
SE124247C1 (en) * | 1948-04-01 | 1949-03-15 | ||
GB741774A (en) * | 1953-07-08 | 1955-12-14 | Herbert George East | Actuating mechanism for an instrument or device such as a centre punch |
US2711738A (en) * | 1953-09-28 | 1955-06-28 | Victor L Kelly | Surgical instrument |
US3030959A (en) * | 1959-09-04 | 1962-04-24 | Praemeta | Surgical lancet for blood sampling |
US3338239A (en) * | 1964-10-08 | 1967-08-29 | Mine Safety Appliances Co | Surgical puncturing device |
DE2405342C3 (en) * | 1974-02-05 | 1978-11-30 | Georg 7145 Markgroeningen Kirchner | Needle apparatus for medical purposes |
US4164224A (en) * | 1974-04-03 | 1979-08-14 | Hastings John A | Disposable earlobe piercing device and method for using the same |
FR2335201A1 (en) * | 1975-12-19 | 1977-07-15 | Sedat | Quasi automatic medical needle injector - includes sliding needle for skin or tissue penetration and sliding impaction appts. within hollow body |
DE2657053C3 (en) * | 1975-12-19 | 1980-01-31 | Societe D'etudes Et D'applications Techniques S.E.D.A.T., Irigny, Rhone (Frankreich) | Device comprising an acupuncture needle and a device for piercing the same |
NZ183665A (en) * | 1976-03-29 | 1980-10-08 | Delta Plastics Ltd | Animal ear tag punch incorporates quick release action |
NZ180734A (en) * | 1976-04-29 | 1980-02-21 | Delta Plastics Ltd | Ear tag applicator retracting pin |
DE2642896C3 (en) * | 1976-09-24 | 1980-08-21 | 7800 Freiburg | Precision snapper for setting standard stab wounds in the skin for diagnostic purposes |
GB1599654A (en) * | 1977-08-05 | 1981-10-07 | Holman R R | Automatic lancet |
SE422150B (en) * | 1980-04-23 | 1982-02-22 | Enstroem Hans | DEVICE FOR SKIN REPLACEMENT AND WAY TO MAKE SUCH A DEVICE |
US4388925A (en) * | 1981-03-23 | 1983-06-21 | Becton Dickinson And Company | Automatic retractable lancet assembly |
US4375815A (en) * | 1981-03-23 | 1983-03-08 | Becton Dickinson And Company | Retractable lancet assembly |
US4553541A (en) * | 1981-03-23 | 1985-11-19 | Becton, Dickinson And Co. | Automatic retractable lancet assembly |
US4416279A (en) * | 1981-06-19 | 1983-11-22 | Lindner James A | Capillary blood sampling device |
US4449529A (en) * | 1981-11-18 | 1984-05-22 | Becton Dickinson And Company | Automatic retractable lancet assembly |
US4462405A (en) * | 1982-09-27 | 1984-07-31 | Ehrlich Joseph C | Blood letting apparatus |
US4517978A (en) * | 1983-01-13 | 1985-05-21 | Levin Paul D | Blood sampling instrument |
NZ208203A (en) * | 1983-09-15 | 1988-03-30 | Becton Dickinson Co | Blood lancet and shield: lancet has three cutting edges terminating in a point |
US4616649A (en) * | 1984-09-20 | 1986-10-14 | Becton, Dickinson And Company | Lancet |
US4624253A (en) * | 1985-01-18 | 1986-11-25 | Becton, Dickinson And Company | Lancet |
-
1984
- 1984-09-20 US US06/652,386 patent/US4616649A/en not_active Expired - Lifetime
-
1985
- 1985-06-11 US US06/743,231 patent/US4677979A/en not_active Expired - Lifetime
- 1985-06-27 EP EP85107965A patent/EP0178384B1/en not_active Expired - Lifetime
- 1985-06-27 MX MX205798A patent/MX163069B/en unknown
- 1985-06-27 DE DE8585107965T patent/DE3584606D1/en not_active Expired - Fee Related
- 1985-07-08 BR BR8503260A patent/BR8503260A/en not_active IP Right Cessation
- 1985-07-09 AU AU44699/85A patent/AU569988B2/en not_active Ceased
- 1985-08-05 JP JP60172244A patent/JPS6179450A/en active Granted
-
1986
- 1986-01-22 CA CA000500093A patent/CA1268093A/en not_active Expired - Fee Related
- 1986-01-24 NZ NZ214920A patent/NZ214920A/en unknown
- 1986-01-29 AU AU52806/86A patent/AU573515B2/en not_active Ceased
- 1986-02-06 ZA ZA86878A patent/ZA86878B/en unknown
- 1986-02-27 ES ES1986296468U patent/ES296468Y/en not_active Expired
- 1986-03-05 DE DE8686102879T patent/DE3676746D1/en not_active Expired - Fee Related
- 1986-03-05 EP EP86102879A patent/EP0204892B1/en not_active Expired - Lifetime
- 1986-03-19 JP JP61061962A patent/JPS61284234A/en active Granted
- 1986-03-24 BR BR8601318A patent/BR8601318A/en not_active IP Right Cessation
- 1986-06-04 DK DK263986A patent/DK263986A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU4469985A (en) | 1986-03-27 |
EP0178384B1 (en) | 1991-11-06 |
BR8503260A (en) | 1986-09-16 |
EP0178384A2 (en) | 1986-04-23 |
JPH0263012B2 (en) | 1990-12-27 |
NZ214920A (en) | 1988-09-29 |
DK263986A (en) | 1986-12-12 |
AU573515B2 (en) | 1988-06-09 |
EP0204892B1 (en) | 1991-01-09 |
DK263986D0 (en) | 1986-06-04 |
ZA86878B (en) | 1986-09-24 |
DE3584606D1 (en) | 1991-12-12 |
ES296468Y (en) | 1988-04-16 |
MX163069B (en) | 1991-08-12 |
JPH0312888B2 (en) | 1991-02-21 |
BR8601318A (en) | 1987-01-13 |
JPS6179450A (en) | 1986-04-23 |
EP0204892A2 (en) | 1986-12-17 |
AU569988B2 (en) | 1988-02-25 |
ES296468U (en) | 1987-10-16 |
EP0178384A3 (en) | 1988-11-02 |
US4616649A (en) | 1986-10-14 |
DE3676746D1 (en) | 1991-02-14 |
JPS61284234A (en) | 1986-12-15 |
EP0204892A3 (en) | 1987-09-30 |
AU5280686A (en) | 1986-12-18 |
US4677979A (en) | 1987-07-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1268093A (en) | Disposable retracting medical lancet | |
US4624253A (en) | Lancet | |
EP1221893B1 (en) | Lancing device | |
US6045567A (en) | Lancing device causing reduced pain | |
US6645219B2 (en) | Rotatable penetration depth adjusting arrangement | |
US7655019B2 (en) | Blood sampling device | |
US5733300A (en) | Single use, bi-directional linear motion lancet | |
US20150250410A1 (en) | Adjustable lancet device and method | |
WO1995010977B1 (en) | Lancet device with irretrievably retractable piercing member | |
EP0255338A3 (en) | A lancet device | |
HU219921B (en) | Device for making blood test, especially from fingers | |
AU5011901A (en) | Lancing mechanism | |
KR20050041943A (en) | Lancing device with trigger mechanism for penetration depth control | |
JPH01185245A (en) | Blood collecting piercing tool | |
JPH06114039A (en) | Blood collecting device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKLA | Lapsed |