Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20060276747 A1
Publication typeApplication
Application numberUS 11/145,684
Publication date7 Dec 2006
Filing date6 Jun 2005
Priority date6 Jun 2005
Also published asCA2547831A1, CN1895182A, EP1731103A1, EP1731103B1, US8834417, US20100280410
Publication number11145684, 145684, US 2006/0276747 A1, US 2006/276747 A1, US 20060276747 A1, US 20060276747A1, US 2006276747 A1, US 2006276747A1, US-A1-20060276747, US-A1-2006276747, US2006/0276747A1, US2006/276747A1, US20060276747 A1, US20060276747A1, US2006276747 A1, US2006276747A1
InventorsKimberly Moos, David Swisher, Whitney Reynolds
Original AssigneeSherwood Services Ag
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Needle assembly with removable depth stop
US 20060276747 A1
Abstract
A needle assembly (10) includes a needle (14) attached to mounting structure (12), and is used to insert the needle into the body of a patient. A depth stop unit (50) of the needle assembly provides a stop surface (58) to limit the distance the needle can be inserted into the body. The depth stop unit may include a depth stop (52) that is adjustable to selectively change the depth to which the needle can be inserted. The entire depth stop unit can be removed from the needle assembly to permit the full length of the needle to penetrate into the body.
Images(10)
Previous page
Next page
Claims(20)
1. A convertible needle assembly (10) comprising:
a mounting structure (12);
a needle (14) having a longitudinal axis and a sharp end (28, 32), the needle being mounted on the mounting structure and projecting outwardly from the mounting structure so that the sharp end is generally remote from the mounting structure;
a depth stop (52) adapted to limit the depth of penetration of the needle;
a rotary connector (66) adapted to releasably connect the depth stop to the needle assembly, the released depth stop being removable from the needle for increasing the possible depth of penetration of the needle.
2. A convertible needle assembly as set forth in claim 1 wherein the rotary connector (66) is constructed to connect to the mounting structure (12) by making a turn in a first direction about an axis that is less than 360 degrees, and to release from the mounting structure by making a turn in a second direction opposite the first direction about the axis that is less than 360 degrees.
3. A convertible needle assembly as set forth in claim 2 wherein the rotary connector (66) is constructed to connect to the mounting structure (12) and release from the mounting structure by making turns in the first and second directions, respectively, that are less than 180 degrees.
4. A convertible needle assembly as set forth in claim 2 wherein the rotary connector (66) is constructed to connect to the mounting structure (12) and release from the mounting structure by making turns in the first and second directions, respectively, that are about 90 degrees
5. A convertible needle assembly as set forth in claim 4 wherein the rotary connector (66) and mounting structure (12) are constructed for bayonet connection of the rotary connector to the mounting structure.
6. A convertible needle assembly as set forth in claim 5 wherein the mounting structure (12) comprises a pair of slots (80) and the rotary connector includes a pair of fingers (70) adapted to be received in the slots.
7. A convertible needle assembly as set forth in claim 6 wherein at least one of the slots (80) and the fingers (70) includes retention structure (70A, 80A) to resist relative rotation between the rotary connector (66) and the handle (12).
8. A convertible needle assembly as set forth in claim 7 wherein the retention structure comprises a projection (80A) located in the slot (80) and a recess (70A) located on the finger (70), the projection being adapted to snap into the recess to provide a tactile confirmation of engagement.
9. A convertible needle assembly as set forth in claim 1 wherein the rotary connector (66) mounts the depth stop (52) for selective positioning along the length of the needle (14) to change the depth limit of penetration.
10. A convertible needle assembly as set forth in claim 9 wherein the rotary connector (66) is elongate and has threads (64) along its length, the depth stop (52) having threads (76) mated with the threads of the rotary connector and being rotatable on the rotary connector for selective positioning along the length of the needle (14).
11. A convertible needle assembly as set forth in claim 10 wherein the rotary connector (66) and depth stop (52) are conjointly removable from the needle (14).
12. A bone needle assembly (10) comprising:
a handle (12);
a needle (14) having a longitudinal axis and a sharp end (28, 32), the needle being mounted on the handle at a location away from the sharp end of the needle and projecting outwardly from the handle;
a depth stop unit (50) comprising a positioning stem (62), a depth stop (52) mounted on the position stem and movable along a length of the stem to different selected positions along the stem and along the longitudinal axis of the needle, the depth stop having a stop surface (58) adapted to limit the depth of penetration of the needle, and a rotary connector (66) adapted to releasably connect the stem to the needle assembly, the rotary connector being capable of releasing connection of the stem so that the stem and depth stop may be removed from the needle for increasing the possible depth of penetration of the needle.
13. A bone needle assembly as set forth in claim 12 wherein the rotary connector (66) is constructed to connect to the handle (12) by making a turn in a first direction about an axis that is less than 360 degrees, and to release from the handle by making a turn in a second direction opposite the first direction about the axis that is less than 360 degrees.
14. A bone needle assembly as set forth in claim 13 wherein the rotary connector (66) is constructed to connect to the handle (12) and release from the handle by making turns in the first and second directions, respectively, that are about 90 degrees.
15. A bone needle assembly as set forth in claim 14 wherein the handle (12) includes a pair of slots (80) and the rotary connector (66) includes a pair of fingers (70) adapted to be received in the slots.
16. A bone needle assembly as set forth in claim 12 wherein the rotary connector (66) and positioning stem (62) are formed as one piece (60).
17. A bone needle assembly as set forth in claim 16 wherein the positioning stem (62) is elongate and has threads (64) along its length, the depth stop (52) having threads (76) mated with the threads of the positioning stem and being rotatable on the positioning stem for selective positioning along the length of the needle (14).
18. A method of adjusting a permissible depth of penetration of a needle (14) of a needle assembly (10) comprising:
releasing a rotary connection of a depth stop unit (50) to the needle assembly, the depth stop unit including a depth stop (52) positioned along a longitudinal axis of the needle and limiting the depth of penetration of the needle to a first depth;
sliding the depth stop unit off of the needle to expose an additional length of the needle for penetration of the needle to a second depth greater than the first depth.
19. A method as set forth in claim 18 wherein the step of releasing connection of the depth stop unit (50) comprises rotating a rotary connector (66) attaching the depth stop unit to the needle assembly (10) less than 360 degrees relative to the needle assembly.
20. A method as set forth in claim 19 wherein the step of releasing the connection of the depth stop unit (50) comprises rotating the rotary connector (66) about 90 degrees relative to the needle assembly (10).
Description
    CROSS REFERENCE TO RELATED APPLICATION
  • [0001]
    This application includes subject matter in common with co-assigned U.S. patent application Ser. No. ______, entitled Bayonet Release of Safety Shield for Needle Tip, filed simultaneously herewith. The subject matter of this application is incorporated herein in its entirety by reference.
  • BACKGROUND OF THE INVENTION
  • [0002]
    This invention relates generally to needles used in medicine and more particularly to a needle assembly having a depth stop to limit penetration of the needle into the subject, which depth stop can be selectively removed from the needle.
  • [0003]
    In some medical applications needles are used to make relatively deep penetrations into the body in order to perform their tasks. For instance where it is necessary to obtain a biopsy sample, the needle may have to penetrate deep inside tissue to the location from which the sample is to be taken. However, there are also situations where the needle has to penetrate a substantial distance through tissue in order to inject a drug or withdraw fluid. One specific example is that of accessing the intramedullary canal of bone. This may be done to collect a specimen of bone marrow or fluid from the intramedullary canal. It is also possible that a drug or other fluid may be infused into the canal through the needle.
  • [0004]
    To penetrate the hard cortical bone surrounding the intramedullary canal, the needle must be hard and strong, and substantial force has to be applied to the needle. The needle is typically mounted on a handle that can be grasped by a medical technician to supply the necessary force to penetrate the cortical bone to reach the intramedullary canal. It is important that the medical technician exercise care so that the needle is not driven elsewhere in the body other than the target bone. Depending upon the location of the bone selected for penetration, the bone may be near to organs or blood vessels that could be damaged by a misdirected needle. For example, if the needle penetrates too deeply, it could damage an untargeted area of the body. Thus, the use of a bone needle assembly of this type requires the simultaneous exercise of substantial force and precision.
  • [0005]
    One way to reduce the chance that the needle will damage the body is to provide a depth stop that limits the depth of penetration of the needle into the body. Typically the depth stop is disposed around the needle below the handle and can engage the exterior of the body to stop the inward thrust of the needle. The depth stop reduces the length of the needle that is available for penetrating into the body. The appropriate depth of penetration can vary widely from one patient to the next. For example, an obese patient may require penetration of several inches of skin and soft tissue to reach the bone, while a thin patient requires very little penetration to reach the bone. Moreover, the location of the target bone may call for a different depth of penetration. To meet this need, depth stop units have been provided that permit the depth stop to be adjusted to expose a greater or lesser length of the needle for penetration into the body. While these adjustable depth stop units provide greater flexibility they do not fully meet the need for variability in needle length. Moreover, some procedures have less reason to use the depth stop than others. Medical technicians differ on their preference for use of needle assemblies incorporating depth stops.
  • [0006]
    In instances where a depth stop is present in the needle assembly, a substantial length of the needle will never be available for use to penetrate into the body because it will remain covered by the depth stop. This is true even if the depth stop is adjusted to expose the maximum possible length of the needle for penetration. Accordingly, it is necessary to keep on hand multiple needle assemblies having different lengths and/or needle assemblies that do not have depth stops.
  • SUMMARY OF THE INVENTION
  • [0007]
    In one aspect of the present invention, a convertible needle assembly generally comprises a mounting structure and a needle having a longitudinal axis and a sharp end, the needle being mounted on the mounting structure and projecting outwardly from the mounting structure so that the sharp end is generally remote from the mounting structure. A depth stop adapted to limit the depth of penetration of the needle is releasably connected by a rotary connector to the needle assembly. The released depth stop is removable from the needle for increasing the possible depth of penetration of the needle.
  • [0008]
    In another aspect of the present invention, a bone needle assembly generally comprises a handle and a needle having a longitudinal axis and a sharp end. The needle is mounted on the handle at a location away from the sharp end of the needle and projects outwardly from the handle. A depth stop unit comprises a positioning stem and a depth stop mounted on the position stem and movable along a length of the stem to different selected positions along the stem and along the longitudinal axis of the needle. The depth stop has a stop surface adapted to limit the depth of penetration of the needle. A rotary connector of the depth stop unit is adapted to releasably connect the stem to the needle assembly. The rotary connector is capable of releasing connection of the stem so that the stem and depth stop may be removed from the needle for increasing the possible depth of penetration of the needle.
  • [0009]
    In still another aspect of the present invention, a method of adjusting a permissible depth of penetration of a needle of a needle assembly generally comprises releasing a rotary connection of a depth stop unit to the needle assembly. The depth stop unit includes a depth stop positioned along a longitudinal axis of the needle and limiting the depth of penetration of the needle to a first depth. The depth stop unit is slid off of the needle to expose an additional length of the needle for penetration of the needle to a second depth greater than the first depth.
  • [0010]
    Other objects and features of the present invention will be in part apparent and in part pointed out hereinafter.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0011]
    FIG. 1 is a perspective of a bone needle assembly;
  • [0012]
    FIG. 2 is the perspective of FIG. 1 with a depth stop unit released from connection to the assembly;
  • [0013]
    FIG. 3 is the perspective of FIG. 2 with a depth stop unit moved off the needed assembly and exploded;
  • [0014]
    FIG. 4 is a longitudinal section of the depth stop unit;
  • [0015]
    FIG. 5 is an elevation of a threaded member of the depth stop unit;
  • [0016]
    FIG. 6 is a front elevation of a distal handle member of the needle assembly;
  • [0017]
    FIG. 7 is a left side elevation of the distal handle member with a portion of the distal handle member broken away and a cannula of the needle assembly removed;
  • [0018]
    FIG. 8 is a front elevation of the distal handle member with the threaded member connected thereto; and
  • [0019]
    FIG. 9 is a right side elevation of the distal handle member of FIG. 8 with a portion of the handle member broken away and the cannula removed.
  • [0020]
    Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.
  • DETAILED DESCRIPTION
  • [0021]
    Referring now to the drawings and in particular to FIGS. 1-3, a bone needle assembly constructed according to the principles of the present invention is indicated generally at 10. The bone needle assembly includes a handle 12 (broadly, “mounting structure”), and a needle 14, all reference numbers indicating their subjects generally. The needle 14 includes a stylet 18 and a cannula 20 that can receive the stylet. The handle 12 includes a first or proximal handle member (indicated generally at 22) mounting the stylet 18, and a second or distal handle member (indicated generally at 24) mounting the cannula 20. “Proximal” and “distal” refer to the relative location of the handle members to a medical technician when the needle assembly is in use. The proximal handle member 22 is in contact with the palm of the technician's hand in use, and the distal handle member 24 is on the opposite side of the proximal handle member from the palm. It will be understood that a needle could include only a single component part, or more than two parts within the scope of the present invention. Similarly, a handle could be a single part or more than two parts. Moreover, the present invention has application to needle assemblies other than bone needle assemblies, and other than to needle assemblies having a depth stop. It is envisioned that the present invention also has use outside the field of needles.
  • [0022]
    The cannula 20 has an axial passage extending the length of the cannula and opening at both ends of the cannula. A distal tip 28 of the cannula 20 is beveled and sharpened. A proximal end portion of the cannula 20 is received in the distal handle member 24. The stylet 18 is solid and includes a sharp distal tip 32, and a proximal end portion received in the proximal handle member 22. The stylet 18 can be inserted through the axial passage opening in the proximal end portion of the cannula 20 and received entirely through the axial passage of the cannula so that its sharp distal tip 32 projects axially outward from the distal tip 28 of the cannula. The stylet 18 provides the tool for penetrating the cortical bone, and can be removed from the cannula 20 once the intramedullary canal is accessed by the needle 14.
  • [0023]
    The handle 12 formed by the proximal and distal handle members 22, 24 has an ergonomic shape that can be comfortably received in a medical technician's hand, and allows the technician to easily control the needle assembly 10 as he or she applies the substantial forces needed to penetrate the bone. More specifically, the top or proximal surface 38 of the proximal handle member 22 is rounded in conformance with the shape of the palm of the hand. The bottom or distal surface 40 of the distal handle member 24 is also rounded but is undulating in shape thereby forming finger wells 40A for receiving the technician's fingers. The proximal and distal handle members 22, 24 can be securely connected together when the stylet 18 is received in the cannula 20, so that the handle 12 acts essentially as a single piece when used to drive the needle 14 through a patient's skin and into the bone. The proximal and distal handle members 22, 24 can be disconnected and moved apart for removing the stylet 18 from the cannula 20.
  • [0024]
    To assemble the proximal handle member 22 and stylet 18 with the distal handle member 24 and cannula 20, the sharp distal tip 32 of the stylet is inserted into the central open portion of the distal handle member so that it enters the axial passage of the cannula. The proximal and distal handle members are turned from their aligned position to a position in which the proximal handle member 22 is perpendicular to the distal handle member 24 (not shown). When the handle members 22, 24 are fully brought together, they are turned toward alignment with each other. This results in the handle members 22, 24 being interconnected in the position illustrated in FIGS. 1 and 2. Thereafter, it will require nearly a 90 degree turn of the proximal handle member 22 relative to the distal handle member 24 to disconnect these components. Accordingly, accidental separation of the handle members 22, 24 in use is resisted. Wavy ribs 46 on the distal handle member 24 are provided for gripping the distal handle member to disconnect and separate the distal handle member from the proximal handle member 22. The wave shape of the ribs 46 suggests to the medical technician (because the ribs extend both around a longitudinal axis LA of the needle and along the needle axis) that first twisting and then axial movement is needed to achieve separation of the proximal handle member 22 and stylet 18 from the distal handle member 24 and cannula 20.
  • [0025]
    The proximal end portion of the stylet 18 extends into the open center of the proximal handle member 22, and is secured is a suitable manner to the proximal handle member. For instance, the handle member 22 may be molded around the stylet 18 or the stylet may be attached to the proximal handle member by an adhesive. The proximal handle member 22 can be formed of polymeric or other material. Although shown as opaque in the drawings, the handle member 22 could be partially or totally transparent. A proximal end portion of the cannula 20 extends into a tubular, projecting portion 66 of the distal handle member 24 located at its center. The cannula 20 is mounted on the distal handle member 24 in a suitable manner. For instance, the distal handle member 24 may be molded around the cannula 20 or the cannula may be adhered to the distal handle member. The distal handle member 24 can be formed of polymeric or other suitable material. Although shown as opaque, the handle member 24 could be partially or totally transparent.
  • [0026]
    The needle assembly 10 further comprises a depth stop unit (broadly, “an operative member), generally indicated at 50. The depth stop unit includes a depth stop 52 that has a generally conical portion 54 with a cylindrical nose 56 projecting therefrom, calling to mind roughly the shape of a space capsule. The conical portion 54 has an annular bottom stop surface 58 that is engageable with the body of the patient to limit the penetration depth of the needle 14 into the body. A hub 59 generally in the center of the bottom of the depth stop 52 is sized and shaped to receive and hold a tube (not shown) by a releasable interference fit. The tube covers the sharp ends 28, 32 of the cannula 20 and stylet 32, and is removed by pulling off of the hub 59 prior to usage of the needle assembly 10.
  • [0027]
    The depth stop unit 50 further includes an elongate, tubular threaded member, indicated generally at 60, on which the depth stop 52 is threadably mounted. The threaded member 60 has an axially extending passage 61 (FIG. 3) that extends completely through the length of the threaded member. The passage 61 receives the needle 14 through the threaded member 60. Referring to FIG. 5, the threaded member 60 includes a positioning stem 62 having threads 64. A connector (indicated generally at 66) of the threaded member 60 comprises two arms 68 projecting upward from the positioning stem and having radially inwardly projecting fingers 70 at their free ends. The arms 68 are located on diametrically opposite sides of the threaded member 60. The connector 66 can releasably attach the threaded member 60 and depth stop 52 to the distal handle member 24, as will be described more fully hereinafter. Although the positioning stem 62 and connector 66 are shown as one piece, a connector could be formed separate from the positioning stem. Moreover, the positioning stem 62 could be eliminated and the connector 66 could directly attach the depth stop 52 to the distal handle member 24 without departing from the scope of the present invention.
  • [0028]
    As shown in FIG. 4, the depth stop 52 has an axially extending passage 74 extending through the entire length of the depth stop and including a larger diameter portion 74A and a smaller diameter portion 74B at its bottom end (as oriented in FIG. 4). The larger diameter portion 74A receives the positioning stem 62 of the threaded member 60 into the depth stop. The smaller diameter portion 74B allows the needle 14 to pass out of the depth stop 52. The larger diameter portion 74A has threads 76 that mate with the threads 64 of the positioning stem 62. Rotation of the depth stop 52 about a longitudinal axis of the threaded member 60 (which generally coincides with the longitudinal axis LA of the needle 14) in the direction indicated by arrow Al in FIG. 1 causes the depth stop to move relative to the positioning stem 62 toward a distal end of the threaded member. Rotation of the depth stop 52 on the positioning stem 62 in the opposite direction indicated by arrow A3 in FIG. 1 causes the depth stop to move toward the proximal end of the threaded member 60. Movement toward the distal end of the threaded member 60 has the effect of shortening the length of the needle 14 located between sharpened distal tips 28, 32 of the cannula 20 and stylet 18 and the stop surface 58 of the depth stop 52. The possible depth of penetration of the needle 14 into the body is therefore reduced. Moving the depth stop 52 toward the proximal end of the threaded member 60 increases the length of the needle 14 located between the sharpened tips 28, 32 and the stop surface 58 of the depth stop 52. The possible depth of penetration of the needle 14 into the body is therefore increased. Thus by rotating the depth stop 52 on the positioning stem 62, a particular limited depth of penetration of the needle 14 into the body of the patient can be selected. Among other things, this can prevent the needle 14 overshooting its target bone and inadvertently damaging another area inside the body.
  • [0029]
    The adjustment of the depth stop 52 along the length of the threaded member 60 allows considerable variance in the effective length of the needle 14 and selected depth of penetration. However, in some instances it will be necessary or desirable to employ substantially the full length of the needle 14 projecting outward from the tubular portion 66 of the distal handle member 24 to reach the target bone. The depth stop unit 50 can be removed from the needle assembly 10 by disconnecting the threaded member 60 from the distal handle member 24.
  • [0030]
    The threaded member 60 is attached to the distal handle member 24 by the fingers 70 of the arms 68 being received in circumferentially extending slots 80 formed in a projecting tubular portion (generally indicated at 82) of the distal handle member (see, FIGS. 7 and 9). The tubular portion 82 includes a hole 83 that receives the cannula 20 (removed in FIGS. 7 and 9) and allows for passage of the stylet 18 into the cannula. A threaded member or depth stop could be attached at other locations on a needle assembly without departing from the scope of the present invention. The slots 80 each are open on one circumferential end of the slot and include an end wall 84 on the other end of the slot. The end wall 84 locates the fingers 70 and positions the threaded member 60 relative to the handle 12. The fingers 70 and slots 80 are shaped for retaining the fingers in the slots thereby to prevent inadvertent disconnection of the threaded member from the distal handle member 24. More specifically, each of the fingers 70 has a triangular recess 70A located generally in the center of the finger. Each slot 80 has a corresponding triangular projection 80A in the center of the slot.
  • [0031]
    When the triangular projections 70A are received in the triangular recesses 80A, the threaded member 60 is held against rotation relative to the tubular portion 82 of the distal handle member 24 (FIGS. 1 and 9). Thus, the threaded member 60 is prevented from inadvertent disconnection from the distal handle member 24. By applying sufficient force, the interlocked connection of the triangular recesses 70A and triangular projections 80A can be overcome to release the threaded member 60 from the distal handle member 24. To connect the threaded member 60 to the distal handle member 24, the threaded member is rotated in a direction opposite arrow A3 from its FIG. 2 position back to its FIG. 1 position. A tapered leading edge portion 70B of each finger 70 first enters its respective slot 80 and eventually engages the triangular projection 80A. The tapered shape of the leading edge portion 70B allows each arm 68 to be resiliently deflected by a small amount in a radially outward direction with respect to the longitudinal axis LA of the needle 14. As the threaded member 60 continues to be rotated, each triangular recess 70A is eventually brought into registration with the corresponding triangular projection 80A. The resilience of the material of the arms 74 forces the recesses 70A down onto the triangular projections 80A so that the projections are partially received in the recesses to retain the connection. The technician will experience a tactile or audible snap as a result of this registering event that confirms the threaded member 60 is secured in place. By applying sufficient torque in the direction of arrow A3, the fingers 76 can rotate to move the triangular recesses 70A off of the triangular projections 80A through deflection of the arms 78. It will be understood that the shape of a projection and recess may be other than triangular. Moreover, the projection could be on a finger and a recess could be in a slot of a handle. Still further, the retention feature could be omitted within the scope of the invention.
  • [0032]
    To release the threaded member 60, and hence the depth stop unit 50 from connection with the distal handle member 24, the connector 66 (and hence the entire threaded member 60) is rotated about 90 degrees in the direction indicated by arrow A3 from its connected position shown in FIG. 1 to a release position shown in FIG. 2. Rotation of the connector 66 moves the fingers 70 out of the slots 80 so that the depth stop unit 50 is no longer connected to the distal handle member 24. The connection may be described as “bayonet”. However, it will be understood that other types of connections, including non-rotary connections may be used within the scope of the present invention. Generally speaking, a quick release connection is desirable (but not mandatory in the present invention). For rotary connections, it is desirable to release connection with less than a 360 degree turn of the connector and more desirable to require a turn of less than 180 degrees to release connection. The bayonet connection illustrated in the drawings requires only about a 90 degree turn to achieve both connection and disconnection. Connection can be made by turning the connector 66 of the threaded member 60 from the position in FIG. 2 back to the position of FIG. 1.
  • [0033]
    Once the threaded member 60 is disconnected from the distal handle member 24 by this motion, the depth stop unit 50 can freely slide down the needle 14 and off of its distal end so that the depth stop unit is entirely removed from the needle assembly 10, as is illustrated in FIG. 3. The entire length of the needle 14 projecting outwardly from the tubular portion 82 is now available for penetrating into the body of the patient to the target bone. If desired, the depth stop unit 50 can be reattached to the needle 14 because the disconnection is non-destructive.
  • [0034]
    Generally circumferentially extending ribs 88 are located on the depth stop 52 at the intersection of the conical portion 54 and the cylindrical portion 56. It will be understood that ribs (not shown) could be placed at other locations, such as on the arms 68 of the threaded member 60. The ribs 88 are spaced apart axially of each other along the longitudinal axis of the threaded member 60. The wave shape of the ribs 88 suggests by its circumferential extent that removal of the depth stop unit 50 requires rotary motion about the axis of the threaded member 60 and needle 14. The axial extent of the ribs 88 suggests a second movement along the axis is needed. These provide indications to the medical technician of how to release the depth stop unit 50 and then slide it off of the needle assembly.
  • [0035]
    When introducing elements of the present invention or the preferred embodiment(s) thereof, the articles “a”, “an”, “the” and “said” are intended to mean that there are one or more of the elements. The terms “comprising”, “including” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements. Moreover, the use of “up”, “down”, “top” and “bottom” and variations of these terms is made for convenience, but does not require any particular orientation of the components.
  • [0036]
    As various changes could be made in the above without departing from the scope of the invention, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2219605 *6 Jun 193829 Oct 1940Henry TurkelDevice for performing a biopsy
US3539034 *11 Oct 196610 Nov 1970Tafeen Carl HParacervical block anesthesia assembly
US3729998 *10 Aug 19701 May 1973Royal Medical CorpElectronic, digital thermometer
US3893058 *6 Mar 19731 Jul 1975J & J Manufacturing CorpElectronic thermometer probe
US3893445 *9 Jan 19748 Jul 1975Becton Dickinson CoBone marrow biopsy instrument
US3915003 *17 Sep 197328 Oct 1975Adams Robert PElectronic thermometer having a heated probe
US4008614 *28 Apr 197622 Feb 1977Johnson & JohnsonRemovable probe unit for electronic measuring system
US4010737 *18 Jul 19738 Mar 1977Vilaghy Miklos IBone biopsy instrument kit
US4099518 *10 May 197611 Jul 1978Baylis Shelby MBiopsy apparatus
US4112762 *28 Apr 197612 Sep 1978Johnson & JohnsonProbe cover grip and release device
US4142517 *23 Jul 19766 Mar 1979Contreras Guerrero De StavropoApparatus for extracting bone marrow specimens
US4163446 *31 Jan 19787 Aug 1979Khosrow JamshidiBiopsy needle and removable pad therefor
US4177797 *4 Mar 197711 Dec 1979Shelby M. BaylisRotary biopsy device and method of using same
US4183248 *8 Aug 197815 Jan 1980Rwb LabsFast response electronic thermometer probe
US4256119 *17 Sep 197917 Mar 1981Gauthier Industries, Inc.Biopsy needle
US4258722 *15 Dec 197831 Mar 1981Ferris Manufacturing Corp.Disposable biopsy needle, particularly for bone marrow samplings
US4262676 *24 Aug 197921 Apr 1981Khosrow JamshidiBiopsy needle having integral stylet locking device
US4266555 *9 Nov 197912 May 1981Khosrow JamshidiBiopsy needle with stylet and cannula orientation
US4314565 *26 Oct 19799 Feb 1982Lee Peter FBiopsy and aspiration needle unit
US4356828 *3 Mar 19802 Nov 1982Khosrow JamshidiBone marrow aspiration needle
US4403617 *8 Sep 198113 Sep 1983Waters Instruments, Inc.Biopsy needle
US4438884 *2 Nov 198127 Mar 1984Spraying Systems CompanyQuick disconnect nozzle
US4447884 *24 Dec 19818 May 1984Sharp Kabushiki KaishaGraphic display in an electronic thermometer
US4469109 *24 Dec 19814 Sep 1984Creative Research And Manufacturing Inc.Bone marrow aspiration needle
US4487209 *22 Feb 198311 Dec 1984Creative Research And Manufacturing Inc.Biopsy needle
US4513754 *19 Jun 198430 Apr 1985Southland Instruments, Inc.Biopsy and aspiration unit with a replaceable cannula
US4543966 *16 May 19841 Oct 1985Downs Surgical PlcBiopsy needle
US4613329 *30 Sep 198323 Sep 1986Sherwood Medical CompanyCatheter placement device
US4630616 *19 Aug 198523 Dec 1986Berkley And Company, Inc.Bone marrow needle
US4655226 *20 Dec 19847 Apr 1987Southland Instruments, Inc.Disposable biopsy needle unit
US4785826 *2 Mar 198722 Nov 1988Ward John LBiopsy instrument
US4790329 *12 Jun 198713 Dec 1988Trustees Of Beth Israel HospitalAdjustable biopsy localization device
US4793363 *11 Sep 198627 Dec 1988Sherwood Medical CompanyBiopsy needle
US4804371 *12 Nov 198714 Feb 1989Vaillancourt Vincent LPost-injection needle sheath
US4838280 *26 May 198813 Jun 1989Haaga John RHemostatic sheath for a biopsy needle and method of use
US4838282 *26 Feb 198713 Jun 1989Manan Manufacturing Co., Inc.Bone biopsy needle assembly
US4842586 *18 Mar 198727 Jun 1989City Of Hope National Medical CenterSafety device and method for removal and disposal of medical needles
US4915702 *11 Jul 198810 Apr 1990Habley Medical Technology Of CaliforniaShielded safety syringe
US4922602 *31 Oct 19888 May 1990Creative Research And Manufacturing, Inc.Method of manufacturing a biopsy needle
US4958625 *18 Jul 198925 Sep 1990Boston Scientific CorporationBiopsy needle instrument
US4969554 *5 Feb 199013 Nov 1990Sawaya Frederick JDisposable sharp instrument container
US4986279 *1 Mar 198922 Jan 1991National-Standard CompanyLocalization needle assembly with reinforced needle assembly
US5005585 *24 Apr 19899 Apr 1991Marshfield ClinicBiopsy needle construction
US5012818 *4 May 19897 May 1991Joishy Suresh KTwo in one bone marrow surgical needle
US5031634 *19 Jan 199016 Jul 1991Beth Israel Hospital Assoc., Inc.Adjustable biopsy needle-guide device
US5036860 *24 Nov 19896 Aug 1991Medical Device Technologies, Inc.Disposable soft tissue biopsy apparatus
US5047044 *23 Feb 199010 Sep 1991Thorne, Smith, Astill Technologies, Inc.Medical droplet whole blood and like monitoring
US5057085 *24 Nov 198915 Oct 1991Medical Device Technologies, Inc.Stabilized aspiration biopsy needle assembly
US5127916 *22 Jan 19917 Jul 1992Medical Device Technologies, Inc.Localization needle assembly
US5133606 *15 Apr 199128 Jul 1992Becton, Dickinson And CompanyElectronic clinical thermometer
US5133727 *10 May 199028 Jul 1992Symbiosis CorporationRadial jaw biopsy forceps
US5165798 *21 May 199124 Nov 1992Citizen Watch Co., Ltd.Electronic clinical thermometer with soft flexible casing
US5172702 *1 Apr 199122 Dec 1992Medical Device Technologies, Inc.Disposable spring-loaded soft tissue biopsy apparatus
US5176256 *12 Nov 19915 Jan 1993Sawaya Frederick JContainer for used medical instruments
US5195533 *8 May 199223 Mar 1993Boston Scientific CorporationBiopsy needle instrument for storing multiple specimens
US5213115 *23 Oct 199025 May 1993Burron Cardiovascular, A Division Of B. Braun Medical, Inc.Inflation system for a balloon catheter
US5228451 *9 Apr 199220 Jul 1993Symbiosis CorporationBiopsy forceps device having stiff distal end
US5256149 *14 Feb 199226 Oct 1993Ethicon, Inc.Trocar having transparent cannula and method of using
US5257632 *9 Sep 19922 Nov 1993Symbiosis CorporationCoaxial bone marrow biopsy coring and aspirating needle assembly and method of use thereof
US5279306 *24 Jul 199118 Jan 1994Creative Research And ManufacturingBiopsy needle
US5279563 *22 May 199218 Jan 1994B. Braun Medical, Inc.Digital display for an inflation system for a balloon catheter
US5282477 *4 Dec 19921 Feb 1994Alberto BauerDevice for reliably performing a biopsy, in particular a bone-marrow biopsy
US5295977 *11 May 199322 Mar 1994Symbiosis CorporationTrocar catheter for drainage
US5316013 *26 Aug 199131 May 1994Hart Enterprises, Inc.Oriented biopsy needle assembly
US5368046 *24 Mar 199329 Nov 1994Symbiosis CorporationBone marrow needle assembly
US5421522 *24 Sep 19936 Jun 1995Bex Engineering Ltd.Nozzle assembly
US5473629 *7 Aug 19875 Dec 1995Terumo Kabushiki KaishaElectronic clinical thermometer
US5575563 *24 May 199419 Nov 1996Chiu; JobMultiusage thermometer
US6000846 *20 May 199714 Dec 1999Welch Allyn, Inc.Medical thermometer
US6171284 *15 Mar 20009 Jan 2001Wang-Hsiang KaoSyringe needle cover structure
US6236880 *21 May 199922 May 2001Raymond R. RaylmanRadiation-sensitive surgical probe with interchangeable tips
US6293700 *24 Sep 199925 Sep 2001Fluke CorporationCalibrated isothermal assembly for a thermocouple thermometer
US6383144 *18 Jan 20007 May 2002Edwards Lifesciences CorporationDevices and methods for measuring temperature of a patient
US6501384 *13 Jun 200131 Dec 2002Solar Wide Industrial Ltd.Electronic candy and oil thermometer
US6637935 *8 Jan 200228 Oct 2003Min-Ying ChenStructure of a clinical thermometer
US6698921 *14 Mar 20012 Mar 2004Alaris Medical Systems, Inc.Predictive temperature measurement system
US6789936 *20 Jun 200014 Sep 2004Braun GmbhInfrared thermometer for performing temperature measurements at different sites
US6811308 *17 Jun 20032 Nov 2004Maverick Industries, Inc.Wireless remote cooking thermometer system
US6827488 *4 Mar 20037 Dec 2004Welch Allyn, Inc.Sealed probe chamber for thermometry apparatus
US6839651 *27 Jun 20014 Jan 2005Sherwood Services AgProbe tip thermal isolation and fast prediction algorithm
US6854880 *8 Dec 200315 Feb 2005Actherm Inc.Electronic clinical thermometer
US6916314 *30 Jan 200312 Jul 2005Karl Storz Gmbh & Co. KgMedical instrument with removable tool
US6939039 *11 Aug 20016 Sep 2005Microlife Intellectual Property GmbhMedical thermometer and method for producing medical thermometer
US6957911 *24 Jun 200325 Oct 2005Cosco Management, Inc.Infant thermometer
US6976783 *20 Oct 200320 Dec 2005Actherm Inc.Assembly method and structure of an electronic clinical thermometer
US7021824 *20 Oct 20034 Apr 2006Welch Allyn, Inc.Switch assembly for thermometry apparatus
US7036984 *20 Nov 20032 May 2006Lindon Group, Inc.Digital thermometer for measuring body temperature
US7255475 *12 Oct 200514 Aug 2007Welch Allyn, Inc.Thermometry probe calibration method
US20030114797 *16 Dec 200219 Jun 2003Vaillancourt Vincent L.Safety needle with collapsible sheath
US20030176810 *15 Mar 200218 Sep 2003Maahs Tracy D.Thermography catheter
US20030212438 *7 May 200213 Nov 2003Nova Richard C.Customization of medical device
US20040071182 *11 Oct 200215 Apr 2004Welch Allyn, Inc.Thermometry probe calibration method
US20040077973 *22 Oct 200222 Apr 2004Groenke Gregory C.Biopsy device handle assembly
US20060061451 *17 Sep 200423 Mar 2006Shoei-Lai ChenPersonalized control device having security mechanism
US20070189358 *26 Feb 200716 Aug 2007Welch Allyn, Inc.Multi-site infrared thermometer
USD395609 *14 May 199730 Jun 1998Welch Allyn, Inc.Medical thermometer
USD400808 *25 Aug 199710 Nov 1998Testo Gmbh & Co.Measuring instrument
USD448314 *27 Jul 200025 Sep 2001Li-Chuan ChenInfrared thermometer
USD480977 *3 Oct 200221 Oct 2003Welch Allyn, Inc.Thermometry probe
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US873439128 Oct 201027 May 2014Roche Diagnostics Operations, Inc.Systems, methods and devices for adjusting the insertion depth of a cannula associated with a portable therapeutic device
US9226732 *23 Nov 20115 Jan 2016Harvest Technologies CorporationBone marrow aspiration device and needle
US20050143771 *2 Dec 200430 Jun 2005Stout Jeffrey T.Lancing device with combination depth and activation control
US20080171983 *27 Oct 200617 Jul 2008Knutson Eric JNeedle hub assembly
US20120046614 *23 Aug 201023 Feb 2012Becton, Dickinson And CompanySkin engagement member for use with needle assembly or medical injector
US20120095365 *24 Oct 201119 Apr 2012Suros Surgical Systems, Inc.Adjustable spacer
US20120157880 *14 Dec 201121 Jun 2012Cook Medical Technologies LlcCoring tissue biopsy needle and method of use
US20130131545 *23 Nov 201123 May 2013Harvest Technologies CorporationBone marrow aspiration device and needle
US20140039534 *31 Jul 20136 Feb 2014Wyatt Drake GeistDepth controlled jamshidi needle
USD7353326 Mar 201328 Jul 2015C. R. Bard, Inc.Biopsy device
USD73533326 Jun 201328 Jul 2015C. R. Bard, Inc.Biopsy device
USD7369227 Apr 201418 Aug 2015C. R. Bard, Inc.Biopsy device
USD7374407 Mar 201325 Aug 2015C. R. Bard, Inc.Biopsy device
USD75119915 Jun 20158 Mar 2016C. R. Bard, Inc.Biopsy device
USD75274715 Jul 201529 Mar 2016C. R. Bard, Inc.Biopsy device
USD7592465 Aug 201514 Jun 2016C. R. Bard, Inc.Biopsy device
EP2493538A1 *28 Oct 20105 Sep 2012Medingo Ltd.Systems, methods and devices for adjusting the insertion depth of a cannula associated with a portable therapeutic device
EP2493538A4 *28 Oct 201012 Jun 2013Medingo LtdSystems, methods and devices for adjusting the insertion depth of a cannula associated with a portable therapeutic device
WO2011051940A1 *28 Oct 20105 May 2011Medingo Ltd.Systems, methods and devices for adjusting the insertion depth of a cannula associated with a portable therapeutic device
Classifications
U.S. Classification604/117, 600/562, 600/573
International ClassificationA61M5/00
Cooperative ClassificationA61B2090/036, A61B10/025
European ClassificationA61B10/02P4
Legal Events
DateCodeEventDescription
6 Jun 2005ASAssignment
Owner name: SHERWOOD SERVICES AG, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MOOS, KIMBERLY A.;SWISHER, DAVID RORK;REYNOLDS, WHITNEY;REEL/FRAME:016665/0348;SIGNING DATES FROM 20050526 TO 20050531
12 Aug 2008ASAssignment
Owner name: COVIDIEN AG, SWITZERLAND
Free format text: CHANGE OF NAME;ASSIGNOR:SHERWOOD SERVICES AG;REEL/FRAME:021370/0774
Effective date: 20070309
Owner name: COVIDIEN AG,SWITZERLAND
Free format text: CHANGE OF NAME;ASSIGNOR:SHERWOOD SERVICES AG;REEL/FRAME:021370/0774
Effective date: 20070309
14 Jul 2010ASAssignment
Owner name: TYCO HEALTHCARE GROUP AG, SWITZERLAND
Free format text: MERGER;ASSIGNOR:COVIDIEN AG;REEL/FRAME:024684/0806
Effective date: 20081215
15 Jul 2010ASAssignment
Owner name: COVIDIEN AG, SWITZERLAND
Free format text: CHANGE OF NAME;ASSIGNOR:TYCO HEALTHCARE GROUP AG;REEL/FRAME:024689/0715
Effective date: 20081215