CA1307179C - Extendable guidewire for cardiovascular procedures - Google Patents
Extendable guidewire for cardiovascular proceduresInfo
- Publication number
- CA1307179C CA1307179C CA000586833A CA586833A CA1307179C CA 1307179 C CA1307179 C CA 1307179C CA 000586833 A CA000586833 A CA 000586833A CA 586833 A CA586833 A CA 586833A CA 1307179 C CA1307179 C CA 1307179C
- Authority
- CA
- Canada
- Prior art keywords
- guidewire
- section
- tubular member
- male member
- extendable
- 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 - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
- A61M25/09—Guide wires
- A61M25/0905—Guide wires extendable, e.g. mechanisms for extension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49876—Assembling or joining with prestressing of part by snap fit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49945—Assembling or joining by driven force fit
Abstract
EXTENDABLE GUIDEWIRE FOR CARDIOVASCULAR PROCEDURES
Abstract of the Disclosure An extendable guidewire system for introducing a dilatation catheter into the cardiovascular system. The guidewire has guidewire and extension sections with a connection therebetween which permits the two sections to be joined together and separated simply by pushing the two sections together and pulling them apart. One of the sections can be used for positioning the catheter within the cardiovascular system, and the other section can be employed to extend the wire to change catheters.
Abstract of the Disclosure An extendable guidewire system for introducing a dilatation catheter into the cardiovascular system. The guidewire has guidewire and extension sections with a connection therebetween which permits the two sections to be joined together and separated simply by pushing the two sections together and pulling them apart. One of the sections can be used for positioning the catheter within the cardiovascular system, and the other section can be employed to extend the wire to change catheters.
Description
;" ~L3al7~g 6623g-1470 This invention generally relates to cardiovascular procedures such as angioplasty, angiography and valvuloplasty, and more par~icularly to an extendable guidewire for use in such procedures.
Guidewires are currently used to facilitate the placement of catheters in the arterial system of a patient for cardiovascular procedures such as angioplasty, angiography and valvuloplasty. The guidewire i~ typically on the order of 20-50 cm longer than the catheter to permit the guidewire and the catheter to be advanced relative to each other as they are steered into position within the patient's body. Suitable guidewires are described in the U.S. Patent No. 4,538,622 ~Samson et al.) and U.S. Patent No. 4,569,347 (Frisble).
In the usual procedure to change catheters, the guidewire is removed from the patient, and an exchange wire i6 inserted in its place. The in-place catheter is removed ~rom the patient and a new catheter is inserted into the patient. The exchange wire is then removed and the guidewire is reinserted.
The exchange wire is substantially longer than the guidewire, and it generally extends outside the patient's body for a distance greater than the length of the catheter. With a dilatation catheter having a length on ~he order o~ 120-140 cm, for example, a guidewire might have a length on the order of 175 cm, and an exchange wire might have a length on the order of 300 cm. The use of an exchange wire has the obvious disadvantage that it complicates the angioplasty procedure.
Heretofore, there have been some attempts to eliminate ~: _.. r~ 1 ~
:
' ' ' . .
`` ~L307~i79 the need for a separate exchange wlre by attachlng an extengion wire to a guidewire to extend the leng~h thereof. The t~o wires are joined together by a crimped connector which requires a special tool. Once ~he wires have been crimped, ~he connection therebetween is permanent, and the e~tension wire cannot be removed except by severing it from the guidewire.
What has been needed and heretofore unavailable is an extension which can be readily connected and disconnected to the guidewire when it is in position within the patient. The present invention satis~ies this naed.
SUMMARY OF THE INVENTION
The present invention provides a new and lmproved guidewire system and the method of using the same.
The present invention provides an extendahle guldewire system comprising: (a) a main guidewire section adapted to be inserted into a patient's vascular system which has a mating end adapted to extend out of the patient; (b) a guidewire extension section haviny a mating end; and (c) a connection therebetween suitable for repetitive connections including a tubular member on the mating end of one of the guidewire sections having an open end, a male member on the mating end of the other guidewire section which is adapted to be manually inserted into the opan end of the tubular member and means to releasably secure the two sections togekher by frictlonal engagement between the tubular member and the male member.
The male member preferably has an effective diameter in one radial dimension which ls slightly larger than the inner r~ 2 3~7~L79 diameter of the tubular portion. The slightly laryer connecting end of one of the guidewire sections is inserted in~o the ~ubular end of the other guidewire sectlon. One or both of the connecting endæ are deformed to provlde an interference or friction fit therebetween and thereby detachably secure the two guidewire sec~ions together. The two sec~ions can be readily separated by pulling them apart. The two sections can be reconnected and disconnected as desired.
These and other advantages of the invention will become more apparent from the following detalled description thereof and the accompanying exemplary drawings.
BRI$F DESCRIPT ON _F THE DRAWINGS
FIG. 1 is a fragmentary, centerline sectional view of an extendable guidewire embodying ~eature~ of the invention, with parts separated;
FIG. 2 is a fragmentary centerline view of the embodiment shown in FIG. 1 wlth the parts joined;
FIG. 3 is a cross-sectional view taken along lines 3-3 of FI&. 2; and FIG. 4 is a partial centerline sectional view of an alternative embodiment.
DETAILED DESCRIPTION OF THE INV~NTION
As illustrated in FIG. 1-3, the guldewire system 10 embodying features of the invention has a main section 11 which is adapted to be inserted into a patient's vascular system and an extension section 12 which can be connected and disconnected ko the main ~ection 11 to facllitate the exchange of catheters `~; f " 3 ~. ~
. .
~307~L79 66239-1~70 without the need for removiny the main section 10 from khe patient's vascular system. Maln guidewire section 11 generally comprises an elongated shaft 13 with a ~lexible tip (not shown) at its distal end and a smaller dlameter portion 14 at its proximal end which is shaped into an undulating or sinusoldal shape.
Reference is made to U.S. Patent 4,538,622 ISamson et al.) and U.S. Patent 4,56g,347 (Frisbie), for a description of deslrable guidewire tip constructions. Extension section 12 has an elongated shaft 16 with smaller diameter projection or post 17 at its distal end.
The connection 18 between guidewire secttons 11 and 12 generally comprise tubular member 19 which is fixed to the distal end of the extension section 12 and which receives interfi~ting undulating member 14 which is on the proximal end of main section 11. Tubular member 19 is mounted by suitable means æuch as welding, brazing, suturing, by an adhesive or the like onto the short axial extension 17 of reduced diameter at the distal end of shaft 16. Axial extension or post 17 can be ~ormed by any suitable means such as ~`` r~ 4 ~L3~)7~7~3 grinding down the proximal end portion o~ the shaft 16 to the desired diameter so that it interfits into the end of tubular member 15. The undulating portion 14 is formed by first grinding the proximal end of main section 11 to a smaller diameter, then forming the undulations or sinusoidal shape by bending over a mandrel or other suitable means.
The maximum effective dimension A of the undulated section should be slightly more than the inner diameter B of tubular connecting piece 17 but preferably not more than 50% greater than dimension B to provide interference or friction fit which will hold the sections together during catheter exchange but which can be readily disengaged after exchange has been made. Preferably no more than a one pound pull should be necessary for disengagement.
In a guidewire having a diameter on the order of about .36 mm (.014 inch), for example, tubular member 19 might have an inner diameter of about .18 mm (.007 inch) and a wall thickness on the order of .025 mm (.001 inch) and the undulating section 14 might have a maximum e~fective radial dimension of about .23 mm (.009 inch). In this embodiment, tubular member 19 might have a length on the order of about 2.4-2.5 cm.
The ~ain guidewire section is intended for use in positioning a dilatation catheter (not shown) in the cardiovascular system of a patient, and it has a length corresponding to the length of a conventional guidewire for this purpose. Details of typical dilatation catheters and guidewires can .~ .
~307~L7~
6623~-1470 be found in the pa~ent~ cl~ed previously.
Extension section 12 is suf~iciently long so tha~ when the guidewire sections 11 and 12 are connected together the guidewire system 10 has an overall length suikable ~or exchanginy catheters without removing the main section 11 from the patient's vascular system. With a dilatation catheter having a length on the order of 120-140 cm, for example, section 11 might have a length of 140-175 cm, and section 12 might have a length of 125-160 cm.
Shafts 13 and 16 and tubular member 19 can be fabricated from suitable material, such as stainless steel, Nitinol ~55% Mi-Bal. Ti), and the like, and each should have a diameter to allow a dilatation catheter to pass freely over them. It is preferable that the two shafts 13 and 16 be of substantially the same diameter in order to provide a smooth transition between them. In one presently preferred embodiment for use in coronary angioplasty, shafts 13 and 16 have a diameter on the order of about .36 mm ~.014 inch). Either or both of the æha~ts can be provided with a coating of polytetrafluoroethylene, which is sold under the trademark Teflon by the DuPont Corporation, or another suitable low-friction material to facilitate the movement of the catheter over the wire.
An alternative embodiment is shown in FIG. ~ wherein the proximal end of main guidewire section 12 which is adapted to be inserted into the . ~ 6 !
.
tubular member 19 is provided with a smaller diameter poxtion 30 having protrusions 31 which provide the interference or friction ~it to releasably secure together the sections 11 and 12 of the guidewire system 10. The protrusions can have various shapes such as the semi-spherical shapes ~hown in FIG. 4, triangular shapes, or other shapes which may provide a suitable fit.
In use, the main guidewire section 11 is introduced into the vascular system o~ a patient with a dilatation catheter through a guiding catheter (not shown) and an introducer ~not shown).
When per~orming coronary angioplasty, the distal end of the guiding catheter is positioned in the coronary ostium, and the dilatation catheter is advanced so that it is just proximal to the tip of the guiding catheter.
The distal kip o~ the guidewire is advanced beyond the distal tip o~ the dilatation catheter while the latter is held in place. As the main guidewire section 11 is advanced, it is rotated and steered inko the selected artery. The guidewire tip is preferably advanced through the lesion and beyond it, in order to permit the balloon portion of the dilatation catheter to be positioned within the lesion over a more supportive section of the guidewire. Once in position, the main guidewire section 11 is held in place and the dilatation cathetex is advanced along it until the inflatable balioon thereof is within the lesion.
Undulating end portion 14 remains outside the patient's body and outside any adapter which may be ~3~)7~7~
connected to the proximal end of the dilatation catheter.
To exchange catheters, the main guidewire section ll is extended by manually pressing the open end of tuhular member 19 on the distal end of extension section 12 onto the undulating end 14.
As the tubular member 19 is inserted over the undulating end 14, either the tubular member l9 or the undulating member 14 or both deform to thereby firmly but releasably hold the two guidewire sections together. The dilatation catheter can then be withdrawn from the patient's body over the extended guidewire system.
A new dilatation catheter may then be introduced over the extension section 12 and advanced along the main guidewire section 11 within the patient's body until the balloon crosses the lesionO once the proximal end of the new balloon catheter has advanced beyond connection 18 and tubular end portion 19, section 12 can be removed by grasping the two guidewire sections ll and 12 on opposite sides of the connection 18 and pulling them apart without disturbing the position of section ll in the patient's body. As previously described, the interference or friction fit between the undulating member 14 and the tubular member l9 should be sufficiently strong to hold the two guidewire sections ll and 12 together while dilatation catheters are being exchanged, but should be capable of separation by a pulling force less than one pound.
.
~3(1~7~
The invention has a number of important features and advantages. The two sections of the guidewire can be connected together whenever a longer wire is needed, and they can be separated whenever the additional length is not required.
The two sections of the guidewire may be connected and disconnected by the physician by simply pressing them together and pulling them apart.
This can be Aone as needed, and no special tools are required either to make the connection or to separate it. Thus the catheter exchange is greatly simplified.
It is apparent from the foregoing that a new and improved extended guidewire system and method of using the same have been provided. While the present invention has been described herein with the tubular connecting element fixed to the distal end of the guidewire extension section and the male member adapted to be inserted into the open end of the tubular member on the proximal end of the main guidewire section, it is obvious that the tubular element on the distal end of the extension section may be interchanged with the male member on the main guidewire section. Moreover, it will be apparent to those familiar with the art, that other modi~ications and improvements can be made without deparking from the scope of the invention as defined by the following claims.
:
.. .. .
.
Guidewires are currently used to facilitate the placement of catheters in the arterial system of a patient for cardiovascular procedures such as angioplasty, angiography and valvuloplasty. The guidewire i~ typically on the order of 20-50 cm longer than the catheter to permit the guidewire and the catheter to be advanced relative to each other as they are steered into position within the patient's body. Suitable guidewires are described in the U.S. Patent No. 4,538,622 ~Samson et al.) and U.S. Patent No. 4,569,347 (Frisble).
In the usual procedure to change catheters, the guidewire is removed from the patient, and an exchange wire i6 inserted in its place. The in-place catheter is removed ~rom the patient and a new catheter is inserted into the patient. The exchange wire is then removed and the guidewire is reinserted.
The exchange wire is substantially longer than the guidewire, and it generally extends outside the patient's body for a distance greater than the length of the catheter. With a dilatation catheter having a length on ~he order o~ 120-140 cm, for example, a guidewire might have a length on the order of 175 cm, and an exchange wire might have a length on the order of 300 cm. The use of an exchange wire has the obvious disadvantage that it complicates the angioplasty procedure.
Heretofore, there have been some attempts to eliminate ~: _.. r~ 1 ~
:
' ' ' . .
`` ~L307~i79 the need for a separate exchange wlre by attachlng an extengion wire to a guidewire to extend the leng~h thereof. The t~o wires are joined together by a crimped connector which requires a special tool. Once ~he wires have been crimped, ~he connection therebetween is permanent, and the e~tension wire cannot be removed except by severing it from the guidewire.
What has been needed and heretofore unavailable is an extension which can be readily connected and disconnected to the guidewire when it is in position within the patient. The present invention satis~ies this naed.
SUMMARY OF THE INVENTION
The present invention provides a new and lmproved guidewire system and the method of using the same.
The present invention provides an extendahle guldewire system comprising: (a) a main guidewire section adapted to be inserted into a patient's vascular system which has a mating end adapted to extend out of the patient; (b) a guidewire extension section haviny a mating end; and (c) a connection therebetween suitable for repetitive connections including a tubular member on the mating end of one of the guidewire sections having an open end, a male member on the mating end of the other guidewire section which is adapted to be manually inserted into the opan end of the tubular member and means to releasably secure the two sections togekher by frictlonal engagement between the tubular member and the male member.
The male member preferably has an effective diameter in one radial dimension which ls slightly larger than the inner r~ 2 3~7~L79 diameter of the tubular portion. The slightly laryer connecting end of one of the guidewire sections is inserted in~o the ~ubular end of the other guidewire sectlon. One or both of the connecting endæ are deformed to provlde an interference or friction fit therebetween and thereby detachably secure the two guidewire sec~ions together. The two sec~ions can be readily separated by pulling them apart. The two sections can be reconnected and disconnected as desired.
These and other advantages of the invention will become more apparent from the following detalled description thereof and the accompanying exemplary drawings.
BRI$F DESCRIPT ON _F THE DRAWINGS
FIG. 1 is a fragmentary, centerline sectional view of an extendable guidewire embodying ~eature~ of the invention, with parts separated;
FIG. 2 is a fragmentary centerline view of the embodiment shown in FIG. 1 wlth the parts joined;
FIG. 3 is a cross-sectional view taken along lines 3-3 of FI&. 2; and FIG. 4 is a partial centerline sectional view of an alternative embodiment.
DETAILED DESCRIPTION OF THE INV~NTION
As illustrated in FIG. 1-3, the guldewire system 10 embodying features of the invention has a main section 11 which is adapted to be inserted into a patient's vascular system and an extension section 12 which can be connected and disconnected ko the main ~ection 11 to facllitate the exchange of catheters `~; f " 3 ~. ~
. .
~307~L79 66239-1~70 without the need for removiny the main section 10 from khe patient's vascular system. Maln guidewire section 11 generally comprises an elongated shaft 13 with a ~lexible tip (not shown) at its distal end and a smaller dlameter portion 14 at its proximal end which is shaped into an undulating or sinusoldal shape.
Reference is made to U.S. Patent 4,538,622 ISamson et al.) and U.S. Patent 4,56g,347 (Frisbie), for a description of deslrable guidewire tip constructions. Extension section 12 has an elongated shaft 16 with smaller diameter projection or post 17 at its distal end.
The connection 18 between guidewire secttons 11 and 12 generally comprise tubular member 19 which is fixed to the distal end of the extension section 12 and which receives interfi~ting undulating member 14 which is on the proximal end of main section 11. Tubular member 19 is mounted by suitable means æuch as welding, brazing, suturing, by an adhesive or the like onto the short axial extension 17 of reduced diameter at the distal end of shaft 16. Axial extension or post 17 can be ~ormed by any suitable means such as ~`` r~ 4 ~L3~)7~7~3 grinding down the proximal end portion o~ the shaft 16 to the desired diameter so that it interfits into the end of tubular member 15. The undulating portion 14 is formed by first grinding the proximal end of main section 11 to a smaller diameter, then forming the undulations or sinusoidal shape by bending over a mandrel or other suitable means.
The maximum effective dimension A of the undulated section should be slightly more than the inner diameter B of tubular connecting piece 17 but preferably not more than 50% greater than dimension B to provide interference or friction fit which will hold the sections together during catheter exchange but which can be readily disengaged after exchange has been made. Preferably no more than a one pound pull should be necessary for disengagement.
In a guidewire having a diameter on the order of about .36 mm (.014 inch), for example, tubular member 19 might have an inner diameter of about .18 mm (.007 inch) and a wall thickness on the order of .025 mm (.001 inch) and the undulating section 14 might have a maximum e~fective radial dimension of about .23 mm (.009 inch). In this embodiment, tubular member 19 might have a length on the order of about 2.4-2.5 cm.
The ~ain guidewire section is intended for use in positioning a dilatation catheter (not shown) in the cardiovascular system of a patient, and it has a length corresponding to the length of a conventional guidewire for this purpose. Details of typical dilatation catheters and guidewires can .~ .
~307~L7~
6623~-1470 be found in the pa~ent~ cl~ed previously.
Extension section 12 is suf~iciently long so tha~ when the guidewire sections 11 and 12 are connected together the guidewire system 10 has an overall length suikable ~or exchanginy catheters without removing the main section 11 from the patient's vascular system. With a dilatation catheter having a length on the order of 120-140 cm, for example, section 11 might have a length of 140-175 cm, and section 12 might have a length of 125-160 cm.
Shafts 13 and 16 and tubular member 19 can be fabricated from suitable material, such as stainless steel, Nitinol ~55% Mi-Bal. Ti), and the like, and each should have a diameter to allow a dilatation catheter to pass freely over them. It is preferable that the two shafts 13 and 16 be of substantially the same diameter in order to provide a smooth transition between them. In one presently preferred embodiment for use in coronary angioplasty, shafts 13 and 16 have a diameter on the order of about .36 mm ~.014 inch). Either or both of the æha~ts can be provided with a coating of polytetrafluoroethylene, which is sold under the trademark Teflon by the DuPont Corporation, or another suitable low-friction material to facilitate the movement of the catheter over the wire.
An alternative embodiment is shown in FIG. ~ wherein the proximal end of main guidewire section 12 which is adapted to be inserted into the . ~ 6 !
.
tubular member 19 is provided with a smaller diameter poxtion 30 having protrusions 31 which provide the interference or friction ~it to releasably secure together the sections 11 and 12 of the guidewire system 10. The protrusions can have various shapes such as the semi-spherical shapes ~hown in FIG. 4, triangular shapes, or other shapes which may provide a suitable fit.
In use, the main guidewire section 11 is introduced into the vascular system o~ a patient with a dilatation catheter through a guiding catheter (not shown) and an introducer ~not shown).
When per~orming coronary angioplasty, the distal end of the guiding catheter is positioned in the coronary ostium, and the dilatation catheter is advanced so that it is just proximal to the tip of the guiding catheter.
The distal kip o~ the guidewire is advanced beyond the distal tip o~ the dilatation catheter while the latter is held in place. As the main guidewire section 11 is advanced, it is rotated and steered inko the selected artery. The guidewire tip is preferably advanced through the lesion and beyond it, in order to permit the balloon portion of the dilatation catheter to be positioned within the lesion over a more supportive section of the guidewire. Once in position, the main guidewire section 11 is held in place and the dilatation cathetex is advanced along it until the inflatable balioon thereof is within the lesion.
Undulating end portion 14 remains outside the patient's body and outside any adapter which may be ~3~)7~7~
connected to the proximal end of the dilatation catheter.
To exchange catheters, the main guidewire section ll is extended by manually pressing the open end of tuhular member 19 on the distal end of extension section 12 onto the undulating end 14.
As the tubular member 19 is inserted over the undulating end 14, either the tubular member l9 or the undulating member 14 or both deform to thereby firmly but releasably hold the two guidewire sections together. The dilatation catheter can then be withdrawn from the patient's body over the extended guidewire system.
A new dilatation catheter may then be introduced over the extension section 12 and advanced along the main guidewire section 11 within the patient's body until the balloon crosses the lesionO once the proximal end of the new balloon catheter has advanced beyond connection 18 and tubular end portion 19, section 12 can be removed by grasping the two guidewire sections ll and 12 on opposite sides of the connection 18 and pulling them apart without disturbing the position of section ll in the patient's body. As previously described, the interference or friction fit between the undulating member 14 and the tubular member l9 should be sufficiently strong to hold the two guidewire sections ll and 12 together while dilatation catheters are being exchanged, but should be capable of separation by a pulling force less than one pound.
.
~3(1~7~
The invention has a number of important features and advantages. The two sections of the guidewire can be connected together whenever a longer wire is needed, and they can be separated whenever the additional length is not required.
The two sections of the guidewire may be connected and disconnected by the physician by simply pressing them together and pulling them apart.
This can be Aone as needed, and no special tools are required either to make the connection or to separate it. Thus the catheter exchange is greatly simplified.
It is apparent from the foregoing that a new and improved extended guidewire system and method of using the same have been provided. While the present invention has been described herein with the tubular connecting element fixed to the distal end of the guidewire extension section and the male member adapted to be inserted into the open end of the tubular member on the proximal end of the main guidewire section, it is obvious that the tubular element on the distal end of the extension section may be interchanged with the male member on the main guidewire section. Moreover, it will be apparent to those familiar with the art, that other modi~ications and improvements can be made without deparking from the scope of the invention as defined by the following claims.
:
.. .. .
.
Claims (9)
1. An extendable guidewire system comprising:
(a) a main guidewire section adapted to be inserted into a patient's vascular system which has a mating end adapted to extend out of the patient;
(b) a guidewire extension section having a mating end;
and (c) a connection therebetween suitable for repetitive connections including a tubular member on the mating end of one of the guidewire sections having an open end, a male member on the mating end of the other guidewire section which is adapted to be manually inserted into the open end of the tubular member and means to releasably secure the two sections together by frictional engagement between the tubular member and the male member.
(a) a main guidewire section adapted to be inserted into a patient's vascular system which has a mating end adapted to extend out of the patient;
(b) a guidewire extension section having a mating end;
and (c) a connection therebetween suitable for repetitive connections including a tubular member on the mating end of one of the guidewire sections having an open end, a male member on the mating end of the other guidewire section which is adapted to be manually inserted into the open end of the tubular member and means to releasably secure the two sections together by frictional engagement between the tubular member and the male member.
2. The extendable guidewire system of claim 1 wherein the tubular member is fixed to the mating end of the guidewire extension section and the male member is on the mating end of the main guidewire section.
3. The extendable guidewire system of claim 1 wherein the tubular member is fixed to the mating end of the main guidewire section and the male member is on the mating end of the guidewire extension section.
4. The guidewire extension system of claim 1 wherein the tubular member is fixed to an end of a guidewire section by welding.
5. The guidewire extension system of claim 1 wherein the tubular member is fixed to an end of a guidewire section by brazing.
6. The guidewire extension system of claim 1 wherein the male member has protrusions on the outer surface thereof which engage the inner surface of the tubular member to thereby releasably secure the two guidewire sections together.
7. The extendable guidewire system of claim 1 wherein the male member has a diametrical dimension slightly larger than the inner diametrical dimension of the tubular member receiving the male member so that upon the insertion of the male member into the tubular member the guidewire sections are releasably secured together.
8. The extendable guidewire system of claim 7 wherein the male member is provided with an undulated shape.
9. The extendable guidewire system of claim 7 wherein the maximum diametrical dimension of the male member is not more than 50% greater than the inside diameter of the tubular member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US137,963 | 1987-12-23 | ||
| US07/137,963 US4827941A (en) | 1987-12-23 | 1987-12-23 | Extendable guidewire for cardiovascular procedures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1307179C true CA1307179C (en) | 1992-09-08 |
Family
ID=22479820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000586833A Expired - Lifetime CA1307179C (en) | 1987-12-23 | 1988-12-22 | Extendable guidewire for cardiovascular procedures |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4827941A (en) |
| EP (2) | EP0566523B1 (en) |
| JP (1) | JP2781187B2 (en) |
| AU (1) | AU622122B2 (en) |
| CA (1) | CA1307179C (en) |
| DE (3) | DE3856400T2 (en) |
Families Citing this family (178)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105818A (en) * | 1987-04-10 | 1992-04-21 | Cardiometric, Inc. | Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of blood in a vessel and screw joint for use therewith |
| US4934380A (en) * | 1987-11-27 | 1990-06-19 | Boston Scientific Corporation | Medical guidewire |
| MY103860A (en) * | 1988-06-13 | 1993-09-30 | Bard Inc C R | Guidewire extension with self-latching detachable connector |
| US4961433A (en) * | 1988-11-02 | 1990-10-09 | Cardiometrics, Inc. | Guide wire assembly with electrical functions and male and female connectors for use therewith |
| US5203772A (en) * | 1989-01-09 | 1993-04-20 | Pilot Cardiovascular Systems, Inc. | Steerable medical device |
| US5108368A (en) * | 1990-01-04 | 1992-04-28 | Pilot Cardiovascular System, Inc. | Steerable medical device |
| US5037391A (en) * | 1989-01-09 | 1991-08-06 | Pilot Cardiovascular Systems, Inc. | Steerable angioplasty device |
| US4998916A (en) * | 1989-01-09 | 1991-03-12 | Hammerslag Julius G | Steerable medical device |
| US5480382A (en) * | 1989-01-09 | 1996-01-02 | Pilot Cardiovascular Systems, Inc. | Steerable medical device |
| US5728067A (en) * | 1989-01-30 | 1998-03-17 | C. R. Bard, Inc. | Rapidly exchangeable coronary catheter |
| ES2049204T3 (en) * | 1989-01-30 | 1994-07-16 | Bard Inc C R | RAPIDLY CHANGEABLE CORONARY CATHETER. |
| US5007434A (en) * | 1989-02-07 | 1991-04-16 | Advanced Cardiovascular Systems, Inc. | Catheter tip attitude controlling guide wire |
| US4966163A (en) * | 1989-02-14 | 1990-10-30 | Advanced Cardiovascular Systems, Inc. | Extendable guidewire for vascular procedures |
| JPH02295569A (en) * | 1989-04-25 | 1990-12-06 | C R Bard Inc | Guide wire |
| EP0416734B1 (en) * | 1989-08-09 | 1995-06-14 | C.R. Bard, Inc. | Guide catheter and guidewires for effecting rapid catheter exchange |
| US6299628B1 (en) | 1989-08-25 | 2001-10-09 | Scimed Life Systems, Inc. | Method and apparatus for catheter exchange |
| DE69015926T2 (en) * | 1989-08-25 | 1995-05-18 | Scimed Life Systems Inc | Device for changing a catheter while holding the guide wire. |
| US5045061A (en) * | 1990-02-02 | 1991-09-03 | C. R. Bard, Inc. | Balloon catheter and locking guidewire system |
| US5060660A (en) * | 1990-02-28 | 1991-10-29 | C. R. Bard, Inc. | Steerable extendable guidewire with adjustable tip |
| US5139032A (en) * | 1990-04-18 | 1992-08-18 | Cordis Corporation | Fixed balloon on a guidewire extension wire system and kit |
| US5117838A (en) * | 1990-04-18 | 1992-06-02 | Cordis Corporation | Rotating guidewire extension system |
| US5813405A (en) * | 1990-04-18 | 1998-09-29 | Cordis Corporation | Snap-in connection assembly for extension guidewire system |
| US5191888A (en) * | 1990-04-18 | 1993-03-09 | Cordis Corporation | Assembly of an extension guidewire and an alignment tool for same |
| US5054501A (en) * | 1990-05-16 | 1991-10-08 | Brigham & Women's Hospital | Steerable guide wire for cannulation of tubular or vascular organs |
| US5345945A (en) * | 1990-08-29 | 1994-09-13 | Baxter International Inc. | Dual coil guidewire with radiopaque distal tip |
| US5195989A (en) * | 1990-09-17 | 1993-03-23 | Scimed Life Systems, Inc. | Low profile catheter for increasing lumen size of a blood vessel and guide wire therefor |
| JPH06502331A (en) * | 1990-10-29 | 1994-03-17 | サイメッド・ライフ・システムズ・インコーポレーテッド | Guide catheter device for angioplasty guide catheter |
| US5527292A (en) * | 1990-10-29 | 1996-06-18 | Scimed Life Systems, Inc. | Intravascular device for coronary heart treatment |
| US5195535A (en) * | 1990-11-09 | 1993-03-23 | C. R. Bard, Inc. | Detachable guidewire extension |
| US6682608B2 (en) | 1990-12-18 | 2004-01-27 | Advanced Cardiovascular Systems, Inc. | Superelastic guiding member |
| US5341818A (en) * | 1992-12-22 | 1994-08-30 | Advanced Cardiovascular Systems, Inc. | Guidewire with superelastic distal portion |
| US6165292A (en) | 1990-12-18 | 2000-12-26 | Advanced Cardiovascular Systems, Inc. | Superelastic guiding member |
| US5234407A (en) * | 1991-03-06 | 1993-08-10 | Baxter International Inc. | Method and device for exchanging cardiovascular guide catheter while a previously inserted angioplasty guide wire remains in place |
| US5109867A (en) * | 1991-04-19 | 1992-05-05 | Target Therapeutics | Extendable guidewire assembly |
| CA2069052A1 (en) * | 1991-05-21 | 1992-11-22 | L. Venkata Raman | Superelastic formable guidewire |
| EP0592720B1 (en) * | 1991-06-10 | 1998-07-29 | Cordis Corporation | Replaceable dilatation catheter |
| US5205822A (en) * | 1991-06-10 | 1993-04-27 | Cordis Corporation | Replaceable dilatation catheter |
| US5282478A (en) * | 1991-08-21 | 1994-02-01 | Baxter International, Inc. | Guidewire extension system with coil connectors |
| US5339833A (en) * | 1991-08-21 | 1994-08-23 | C.R. Bard, Inc. | Swivel exchange guidewire |
| US5188621A (en) * | 1991-08-26 | 1993-02-23 | Target Therapeutics Inc. | Extendable guidewire assembly |
| US5246009A (en) * | 1991-09-20 | 1993-09-21 | Scimed Life Systems, Inc. | Guide wire assembly and method for catheter exchange |
| US5234002A (en) * | 1991-10-11 | 1993-08-10 | Advanced Cardiovascular Systems, Inc. | Catheter exchange system |
| US5271415A (en) * | 1992-01-28 | 1993-12-21 | Baxter International Inc. | Guidewire extension system |
| US5404888A (en) * | 1992-02-10 | 1995-04-11 | Datascope Investment Corp. | Guide wire extension |
| US5247942A (en) * | 1992-04-06 | 1993-09-28 | Scimed Life Systems, Inc. | Guide wire with swivel |
| US5290230A (en) * | 1992-05-11 | 1994-03-01 | Advanced Cardiovascular Systems, Inc. | Intraluminal catheter with a composite shaft |
| US5313967A (en) * | 1992-07-24 | 1994-05-24 | Medtronic, Inc. | Helical guidewire |
| EP0591945A1 (en) * | 1992-10-09 | 1994-04-13 | C.R. Bard, Inc. | Guidewire extension with selflatching detachable connector |
| US5267573A (en) * | 1992-11-13 | 1993-12-07 | Oakley, Inc. | Guidewire extender |
| ATE151615T1 (en) * | 1992-11-18 | 1997-05-15 | Spectrascience Inc | DIAGNOSTIC IMAGE DEVICE |
| US5341817A (en) * | 1992-12-14 | 1994-08-30 | Cordis Corporation | Elongated guidewire for use in dilation procedures |
| ES2157226T3 (en) * | 1993-01-28 | 2001-08-16 | Angiomed Ag | GUIDE PIECE OF A PIECE AND PROCEDURE FOR MANUFACTURING. |
| US6491646B1 (en) | 1993-03-11 | 2002-12-10 | Lake Region Manufacturing, Inc. | Guidewire extension system |
| US5322508A (en) * | 1993-04-08 | 1994-06-21 | Cordis Corporation | Guidewire fluid delivery system and method of use |
| US5404886A (en) * | 1993-05-14 | 1995-04-11 | Schneider (Usa) Inc. | Exchangeable guidewire |
| US5338301A (en) * | 1993-08-26 | 1994-08-16 | Cordis Corporation | Extendable balloon-on-a-wire catheter, system and treatment procedure |
| AU7797894A (en) * | 1993-09-24 | 1995-04-10 | Cardiometrics, Inc. | Extension device, assembly thereof, heater for use therewith and method |
| US5465733A (en) * | 1993-10-14 | 1995-11-14 | Hinohara; Tomoaki | Guide wire for catheters and method for its use |
| US5421348A (en) * | 1993-11-29 | 1995-06-06 | Cordis Corporation | Rotating guidewire extension system with mechanically locking extension wire |
| US5546958A (en) | 1994-03-31 | 1996-08-20 | Lake Region Manufacturing Company, Inc. | Guidewire extension system with tactile connection indication |
| DE69421386T2 (en) * | 1994-04-11 | 2000-03-23 | Schneider Europ Gmbh Buelach | Retaining connection for the extension of a guide wire |
| ATE143274T1 (en) * | 1994-05-11 | 1996-10-15 | Schneider Europ Ag | HOLDING CONNECTION FOR EXTENSION OF A GUIDE WIRE |
| US5441055A (en) * | 1994-06-27 | 1995-08-15 | Cordis Corporation | Guidewire extension wire and connector assembly |
| JPH0889588A (en) | 1994-09-29 | 1996-04-09 | Terumo Corp | Catheter |
| US5513650A (en) * | 1995-02-28 | 1996-05-07 | Medtronic, Inc. | Guidewire extension connector - keyed joint |
| US5792075A (en) * | 1995-04-11 | 1998-08-11 | Schneider (Europe) A.G. | Method and apparatus for extending the length of a guide wire |
| US5827241A (en) * | 1995-06-07 | 1998-10-27 | C. R. Bard, Inc. | Rapid exchange guidewire mechanism |
| WO1997016113A1 (en) * | 1995-11-03 | 1997-05-09 | Intella Interventional Systems, Inc. | Guide wire extension assembly and components thereof |
| US20030069522A1 (en) * | 1995-12-07 | 2003-04-10 | Jacobsen Stephen J. | Slotted medical device |
| US5813996A (en) * | 1995-12-21 | 1998-09-29 | Scimed Life Systems, Inc. | Guide wire extension system with magnetic coupling |
| JPH09182797A (en) * | 1995-12-28 | 1997-07-15 | Asahi Intec Kk | Guidewire |
| US5788653A (en) * | 1996-04-03 | 1998-08-04 | Cordis Corporation | Guidewire extension with sliding release mechanism |
| US6270477B1 (en) * | 1996-05-20 | 2001-08-07 | Percusurge, Inc. | Catheter for emboli containment |
| US6786888B1 (en) * | 1996-05-20 | 2004-09-07 | Medtronic Ave, Inc. | Low profile catheter for emboli protection |
| US6544276B1 (en) * | 1996-05-20 | 2003-04-08 | Medtronic Ave. Inc. | Exchange method for emboli containment |
| US6050972A (en) | 1996-05-20 | 2000-04-18 | Percusurge, Inc. | Guidewire inflation system |
| DE69732104T2 (en) | 1996-05-20 | 2005-12-08 | Medtronic Percusurge, Inc., Sunnyvale | CATHETER VALVE WITH LOW PROFILE |
| US5820571A (en) * | 1996-06-24 | 1998-10-13 | C. R. Bard, Inc. | Medical backloading wire |
| EP0815892B1 (en) * | 1996-06-25 | 2002-11-13 | Schneider (Europe) GmbH | Docking assembly for the extension of a guidewire |
| US5882346A (en) * | 1996-07-15 | 1999-03-16 | Cardiac Pathways Corporation | Shapable catheter using exchangeable core and method of use |
| US5810790A (en) | 1996-11-19 | 1998-09-22 | Ebling; Wendell V. | Catheter with viewing system and port connector |
| US6210312B1 (en) | 1997-05-20 | 2001-04-03 | Advanced Cardiovascular Systems, Inc. | Catheter and guide wire assembly for delivery of a radiation source |
| US6183420B1 (en) | 1997-06-20 | 2001-02-06 | Medtronic Ave, Inc. | Variable stiffness angioplasty guide wire |
| US6113557A (en) * | 1997-06-20 | 2000-09-05 | Medtronic Ave, Inc. | Variable stiffness angioplasty guide wire |
| EP0887084B1 (en) * | 1997-06-24 | 2004-08-11 | Asahi Intecc Co., Ltd. | A connecting structure for a guide wire used for medical treatment |
| US6167725B1 (en) | 1997-06-26 | 2001-01-02 | Neometal, Inc. | Threadless jewelry connector assembly |
| EP1019145A1 (en) | 1997-09-23 | 2000-07-19 | United States Surgical Corporation | Source wire for radiation treatment |
| US5980471A (en) | 1997-10-10 | 1999-11-09 | Advanced Cardiovascular System, Inc. | Guidewire with tubular connector |
| US6080117A (en) * | 1997-10-16 | 2000-06-27 | Scimed Life Systems, Inc. | Guide wire extension system |
| US7499756B2 (en) * | 1999-04-05 | 2009-03-03 | Spectranetics | Lead locking device and method |
| US6167315A (en) * | 1999-04-05 | 2000-12-26 | Spectranetics Corporation | Lead locking device and method |
| US8428747B2 (en) * | 1999-04-05 | 2013-04-23 | The Spectranetics Corp. | Lead locking device and method |
| US20040236396A1 (en) * | 1999-04-05 | 2004-11-25 | Coe Michael Sean | Lead locking device and method |
| US6146339A (en) * | 1999-05-24 | 2000-11-14 | Advanced Cardiovascular Systems | Guide wire with operator controllable tip stiffness |
| AU7386200A (en) * | 1999-08-02 | 2001-02-19 | Radiance Medical Systems, Inc. | Brachytherapy catheter docking system |
| US6645159B1 (en) | 1999-11-30 | 2003-11-11 | Advanced Cardiovascular Systems, Inc. | Wire joint and method |
| AU3441001A (en) * | 1999-12-01 | 2001-06-12 | Advanced Cardiovascular Systems Inc. | Nitinol alloy design and composition for vascular stents |
| EP2248543A1 (en) | 2000-08-24 | 2010-11-10 | Cordis Corporation | Fluid delivery systems for delivering fluids to multi-lumen catheters |
| US6602272B2 (en) * | 2000-11-02 | 2003-08-05 | Advanced Cardiovascular Systems, Inc. | Devices configured from heat shaped, strain hardened nickel-titanium |
| US7976648B1 (en) | 2000-11-02 | 2011-07-12 | Abbott Cardiovascular Systems Inc. | Heat treatment for cold worked nitinol to impart a shape setting capability without eventually developing stress-induced martensite |
| US6855161B2 (en) * | 2000-12-27 | 2005-02-15 | Advanced Cardiovascular Systems, Inc. | Radiopaque nitinol alloys for medical devices |
| US6911036B2 (en) | 2001-04-03 | 2005-06-28 | Medtronic Vascular, Inc. | Guidewire apparatus for temporary distal embolic protection |
| DE60216593T2 (en) | 2001-07-05 | 2007-09-27 | Precision Vascular Systems, Inc., West Valley City | MEDICAL DEVICE WITH A TORQUE TRANSMITTED SOFT END PIECE AND METHOD FOR ITS FORMING |
| US7022109B1 (en) * | 2001-07-09 | 2006-04-04 | Ditto Deborah L | Pain abatement catheter system |
| US6911016B2 (en) | 2001-08-06 | 2005-06-28 | Scimed Life Systems, Inc. | Guidewire extension system |
| US7001361B2 (en) * | 2001-08-24 | 2006-02-21 | Medical Engenuity Llc | Blunting device for a hollow medical needle |
| DE60120155T2 (en) * | 2001-09-10 | 2006-10-26 | Thermocore Medical Systems Nv | Arrangement for positioning catheters |
| DE10150994A1 (en) * | 2001-10-08 | 2003-04-10 | Biotronik Mess & Therapieg | Method for joining a tubular plastic component, in particular, a plastic hose of a catheter to a tubular metal cover on the hose involves reduction of the inner dimensions of the cover |
| US6685653B2 (en) | 2001-12-19 | 2004-02-03 | Scimed Life Systems, Inc. | Extension system for pressure-sensing guidewires |
| US6702762B2 (en) | 2001-12-27 | 2004-03-09 | Advanced Cardiovascular Systems, Inc. | Apparatus and method for joining two guide wire core materials without a hypotube |
| US7351214B2 (en) * | 2002-03-22 | 2008-04-01 | Cordis Corporation | Steerable balloon catheter |
| CA2675209C (en) | 2002-03-22 | 2013-01-08 | Cordis Corporation | Rapid-exchange balloon catheter shaft and method |
| US7520863B2 (en) * | 2002-03-22 | 2009-04-21 | Cordis Corporation | Guidewire with deflectable tip having improved torque characteristics |
| US7481778B2 (en) * | 2002-03-22 | 2009-01-27 | Cordis Corporation | Guidewire with deflectable tip having improved flexibility |
| US20070219464A1 (en) * | 2002-03-22 | 2007-09-20 | Stephen Davis | Guidewire with deflectable re-entry tip |
| US7128718B2 (en) | 2002-03-22 | 2006-10-31 | Cordis Corporation | Guidewire with deflectable tip |
| JP2004044779A (en) * | 2002-05-21 | 2004-02-12 | Aisin Seiki Co Ltd | Drive device |
| US7914467B2 (en) * | 2002-07-25 | 2011-03-29 | Boston Scientific Scimed, Inc. | Tubular member having tapered transition for use in a medical device |
| ATE480286T1 (en) * | 2002-07-25 | 2010-09-15 | Boston Scient Ltd | MEDICAL DEVICE FOR NAVIGATION THROUGH ANATOMY |
| US6866642B2 (en) | 2002-11-25 | 2005-03-15 | Advanced Cardiovascular Systems, Inc. | Enhanced method for joining two core wires |
| CA2508784C (en) * | 2002-12-04 | 2012-03-06 | Lake Region Manufacturing, Inc. | Marked guidewires |
| US8377035B2 (en) | 2003-01-17 | 2013-02-19 | Boston Scientific Scimed, Inc. | Unbalanced reinforcement members for medical device |
| US7169118B2 (en) | 2003-02-26 | 2007-01-30 | Scimed Life Systems, Inc. | Elongate medical device with distal cap |
| US7001369B2 (en) * | 2003-03-27 | 2006-02-21 | Scimed Life Systems, Inc. | Medical device |
| US7942892B2 (en) * | 2003-05-01 | 2011-05-17 | Abbott Cardiovascular Systems Inc. | Radiopaque nitinol embolic protection frame |
| US20040225233A1 (en) * | 2003-05-09 | 2004-11-11 | Frankowski Brian J. | Magnetic guidewires |
| US7824345B2 (en) | 2003-12-22 | 2010-11-02 | Boston Scientific Scimed, Inc. | Medical device with push force limiter |
| CA2552863A1 (en) | 2004-01-09 | 2005-08-04 | Corazon Technologies, Inc. | Multilumen catheters and methods for their use |
| EP1722697B1 (en) * | 2004-03-08 | 2010-11-24 | Radius Medical Technologies, Inc. | Small-diameter snare |
| US20050244869A1 (en) * | 2004-04-05 | 2005-11-03 | Brown-Driver Vickie L | Modulation of transthyretin expression |
| US7416534B2 (en) * | 2004-06-22 | 2008-08-26 | Boston Scientific Scimed, Inc. | Medical device including actuator |
| US7909816B2 (en) | 2004-08-16 | 2011-03-22 | Iridex Corporation | Directional probe treatment apparatus |
| WO2006044059A2 (en) * | 2004-09-11 | 2006-04-27 | The Board Of Trustees Of The Leland Stanford Junior University | Method and apparatus for modeling the modal properties of optical waveguides |
| WO2006042047A1 (en) * | 2004-10-07 | 2006-04-20 | Flea Street Translational, Llc | Methods, systems and devices for establishing communication between hollow organs and tissue lumens |
| US7632242B2 (en) | 2004-12-09 | 2009-12-15 | Boston Scientific Scimed, Inc. | Catheter including a compliant balloon |
| US9445784B2 (en) * | 2005-09-22 | 2016-09-20 | Boston Scientific Scimed, Inc | Intravascular ultrasound catheter |
| US7850623B2 (en) | 2005-10-27 | 2010-12-14 | Boston Scientific Scimed, Inc. | Elongate medical device with continuous reinforcement member |
| US20070100414A1 (en) | 2005-11-02 | 2007-05-03 | Cardiomind, Inc. | Indirect-release electrolytic implant delivery systems |
| CN102688551A (en) * | 2006-03-06 | 2012-09-26 | 泰尔茂株式会社 | Guide wire |
| US8926499B2 (en) * | 2006-04-17 | 2015-01-06 | Boston Scientific Scimed, Inc. | Catheter for use with an endoscope |
| US20070244356A1 (en) * | 2006-04-17 | 2007-10-18 | Boston Scientific Scimed, Inc. | Elongate medical devices having an improved distal profile for use with an endoscope |
| US8152742B2 (en) * | 2006-05-01 | 2012-04-10 | Boston Scientific Scimed, Inc. | Crossing guide wire with corrugated shaping ribbon |
| US9149173B2 (en) * | 2006-06-20 | 2015-10-06 | Boston Scientific Scimed, Inc. | Medical device for use in endoscopic procedure |
| EP2079506B1 (en) | 2006-09-13 | 2016-05-25 | Boston Scientific Limited | Crossing guidewire |
| US8556914B2 (en) | 2006-12-15 | 2013-10-15 | Boston Scientific Scimed, Inc. | Medical device including structure for crossing an occlusion in a vessel |
| US20080281228A1 (en) * | 2007-04-23 | 2008-11-13 | Juan Carlos Parodi | Guidewire with adjustable stiffness |
| US9387308B2 (en) * | 2007-04-23 | 2016-07-12 | Cardioguidance Biomedical, Llc | Guidewire with adjustable stiffness |
| US8500773B2 (en) * | 2007-08-01 | 2013-08-06 | Boston Scientific Scimed, Inc. | Spring detach joint for delivering a detachable implantable device |
| US8409114B2 (en) | 2007-08-02 | 2013-04-02 | Boston Scientific Scimed, Inc. | Composite elongate medical device including distal tubular member |
| US8105246B2 (en) | 2007-08-03 | 2012-01-31 | Boston Scientific Scimed, Inc. | Elongate medical device having enhanced torque and methods thereof |
| US8821477B2 (en) * | 2007-08-06 | 2014-09-02 | Boston Scientific Scimed, Inc. | Alternative micromachined structures |
| US9808595B2 (en) | 2007-08-07 | 2017-11-07 | Boston Scientific Scimed, Inc | Microfabricated catheter with improved bonding structure |
| US7841994B2 (en) | 2007-11-02 | 2010-11-30 | Boston Scientific Scimed, Inc. | Medical device for crossing an occlusion in a vessel |
| US8376961B2 (en) | 2008-04-07 | 2013-02-19 | Boston Scientific Scimed, Inc. | Micromachined composite guidewire structure with anisotropic bending properties |
| US8535243B2 (en) | 2008-09-10 | 2013-09-17 | Boston Scientific Scimed, Inc. | Medical devices and tapered tubular members for use in medical devices |
| US8795254B2 (en) | 2008-12-10 | 2014-08-05 | Boston Scientific Scimed, Inc. | Medical devices with a slotted tubular member having improved stress distribution |
| US8657870B2 (en) | 2009-06-26 | 2014-02-25 | Biosensors International Group, Ltd. | Implant delivery apparatus and methods with electrolytic release |
| US8137293B2 (en) | 2009-11-17 | 2012-03-20 | Boston Scientific Scimed, Inc. | Guidewires including a porous nickel-titanium alloy |
| US8569625B2 (en) | 2009-12-22 | 2013-10-29 | W. C. Heraeus Gmbh | Joined dissimilar materials |
| US20110190831A1 (en) * | 2010-01-29 | 2011-08-04 | Kyphon Sarl | Steerable balloon catheter |
| US8551021B2 (en) | 2010-03-31 | 2013-10-08 | Boston Scientific Scimed, Inc. | Guidewire with an improved flexural rigidity profile |
| US8487210B2 (en) | 2010-06-11 | 2013-07-16 | W. C. Hereaus GmbH | Joined dissimilar materials and method |
| EP2399639A1 (en) | 2010-06-25 | 2011-12-28 | ECP Entwicklungsgesellschaft mbH | System for introducing a pump |
| WO2012106628A1 (en) | 2011-02-04 | 2012-08-09 | Boston Scientific Scimed, Inc. | Guidewires and methods for making and using the same |
| US8783640B2 (en) * | 2011-03-31 | 2014-07-22 | Lear Corporation | Rotatable drive connection that reduces chatter |
| US9072874B2 (en) | 2011-05-13 | 2015-07-07 | Boston Scientific Scimed, Inc. | Medical devices with a heat transfer region and a heat sink region and methods for manufacturing medical devices |
| US8574170B2 (en) * | 2012-04-06 | 2013-11-05 | Covidien Lp | Guidewire |
| US9241832B2 (en) * | 2012-04-24 | 2016-01-26 | Transcend Medical, Inc. | Delivery system for ocular implant |
| US9968762B2 (en) | 2012-08-08 | 2018-05-15 | Cook Medical Technologies Llc | Wire guide with multiple tips |
| US9545501B2 (en) * | 2013-03-06 | 2017-01-17 | Cook Medical Technologies Llc | System for a wire-lumen free balloon catheter |
| US9901706B2 (en) | 2014-04-11 | 2018-02-27 | Boston Scientific Scimed, Inc. | Catheters and catheter shafts |
| US11351048B2 (en) | 2015-11-16 | 2022-06-07 | Boston Scientific Scimed, Inc. | Stent delivery systems with a reinforced deployment sheath |
| US11389172B2 (en) | 2016-09-29 | 2022-07-19 | Rapid Medical Ltd. | Rotationally torquable endovascular device with variable flexibility tip |
| EP3723835B1 (en) * | 2017-12-12 | 2023-11-01 | Rapid Medical Ltd. | Guide wire activation mechanism and proximal actuation mechanism |
| WO2019195287A1 (en) * | 2018-04-02 | 2019-10-10 | Transmural Systems Llc | Helical guidewires and related systems |
| US11154692B2 (en) | 2019-10-30 | 2021-10-26 | Rapid Medical Ltd. | Intraluminal device with looped core wire |
| US11259750B2 (en) | 2020-03-20 | 2022-03-01 | Xenter, Inc. | Guidewire for imaging and measurement of pressure and other physiologic parameters |
| WO2023099961A1 (en) | 2021-12-01 | 2023-06-08 | Petrus Antonius Besselink | Extension system for coupling tubular devices |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB708884A (en) * | 1952-05-26 | 1954-05-12 | Elastic Rail Spike Company Ltd | Improvements in or relating to rail fastening spikes |
| US3400447A (en) * | 1965-07-23 | 1968-09-10 | Aluma Grip Company Of America | Method and apparatus for assembly of tire studs |
| US4045859A (en) * | 1975-02-06 | 1977-09-06 | Texas Medical Products, Inc. | Method of making a suction wand |
| US4003369A (en) * | 1975-04-22 | 1977-01-18 | Medrad, Inc. | Angiographic guidewire with safety core wire |
| US4068660A (en) * | 1976-07-12 | 1978-01-17 | Deseret Pharmaceutical Co., Inc. | Catheter placement assembly improvement |
| FI67916C (en) * | 1982-08-03 | 1985-06-10 | Tampella Oy Ab | ANORDNING FOER FOERHANDSFAESTNING AV EN STAOLVAJERBULT |
| US4554800A (en) * | 1983-11-03 | 1985-11-26 | Moon Richard D | Jewelry arrangement |
| US4538622A (en) * | 1983-11-10 | 1985-09-03 | Advanced Cardiovascular Systems, Inc. | Guide wire for catheters |
| US4569347A (en) * | 1984-05-30 | 1986-02-11 | Advanced Cardiovascular Systems, Inc. | Catheter introducing device, assembly and method |
| AU594684B2 (en) * | 1985-09-18 | 1990-03-15 | C.R. Bard Inc. | Guide wire extension |
| JPS62116746A (en) * | 1985-11-15 | 1987-05-28 | Mitsubishi Metal Corp | High strength lightweight sintered ti alloy |
-
1987
- 1987-12-23 US US07/137,963 patent/US4827941A/en not_active Ceased
-
1988
- 1988-12-02 DE DE3856400T patent/DE3856400T2/en not_active Revoked
- 1988-12-02 DE DE0566523T patent/DE566523T1/en active Pending
- 1988-12-02 EP EP93710007A patent/EP0566523B1/en not_active Revoked
- 1988-12-07 AU AU26654/88A patent/AU622122B2/en not_active Ceased
- 1988-12-08 EP EP88120561A patent/EP0321796B2/en not_active Expired - Lifetime
- 1988-12-08 DE DE3885429T patent/DE3885429T3/en not_active Expired - Lifetime
- 1988-12-22 JP JP63324687A patent/JP2781187B2/en not_active Expired - Lifetime
- 1988-12-22 CA CA000586833A patent/CA1307179C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0566523B1 (en) | 2000-03-15 |
| US4827941A (en) | 1989-05-09 |
| EP0566523A1 (en) | 1993-10-20 |
| DE3856400D1 (en) | 2000-04-20 |
| DE3856400T2 (en) | 2000-12-07 |
| JP2781187B2 (en) | 1998-07-30 |
| DE3885429T2 (en) | 1994-05-19 |
| EP0321796B1 (en) | 1993-11-03 |
| DE3885429D1 (en) | 1993-12-09 |
| EP0321796B2 (en) | 2001-05-09 |
| DE566523T1 (en) | 1994-09-22 |
| EP0321796A3 (en) | 1989-11-29 |
| JPH024390A (en) | 1990-01-09 |
| EP0321796A2 (en) | 1989-06-28 |
| AU622122B2 (en) | 1992-04-02 |
| AU2665488A (en) | 1989-07-06 |
| DE3885429T3 (en) | 2001-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1307179C (en) | Extendable guidewire for cardiovascular procedures | |
| USRE34466E (en) | Extendable guidewire for cardiovascular procedures | |
| US4875489A (en) | Extendable guidewire | |
| CA1330028C (en) | Guidewire extension with self-latching detachable connector | |
| EP0799625B1 (en) | Guidewire Extension with sliding release mechanism | |
| US4966163A (en) | Extendable guidewire for vascular procedures | |
| US5415178A (en) | Extendable guidewire assembly | |
| AU662166B2 (en) | Extendable guidewire assembly | |
| US5701911A (en) | Guide wire extension docking system | |
| EP0699044B1 (en) | Guidewire extension system | |
| US5853375A (en) | Guide wire extension peg and hole with 90 degree latch | |
| US4721117A (en) | Torsionally stabilized guide wire with outer jacket | |
| EP0313807A1 (en) | Extendable guidewire for vascular procedures | |
| CA2137116A1 (en) | Catheter joint with counterbore | |
| JPH0787858B2 (en) | Guide line system | |
| US6328702B1 (en) | Guide wire extension system | |
| WO1997041914A1 (en) | Spring wire insert apparatus and method for inserting tubular medical devices into the body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |