Guidewire connection guide and method of use

• US 5,830,157 A
• Filed: 05/09/1997
• Issued: 11/03/1998
• Est. Priority Date: 05/09/1997
• Status: Expired due to Fees

• Current Assignee: Merit Medical Systems, Inc.
• Original Assignee: Merit Medical Systems, Inc.
• Inventors: Foote, Jerrold L.
• Primary Examiner(s): Hindenburg, Max
• Assistant Examiner(s): Marmor, II, Charles
• Application Number:
  US08/853,272
• Time in Patent Office: 543 Days
• Field of Search: 600/434, 600/585
• US Class Current: 600/585
• CPC Class Codes: A61M 25/0905 extendable, e.g. mechanisms for extension

Abstract

A guidewire connection guide includes a back member having a top surface extending between opposing sidewalls. An open-topped channel is positioned on the top surface and extends linearly through and between each of the opposing sidewalls. A restraining member having a planar top surface is hingedly attached to the back member. The restraining member is selectively folded over to compress against the end of an extension guidewire positioned within the first end of the channel. An enclosing member also has a planar top surface and is hingedly connected to the back member adjacent to the restraining member. The enclosing member can be selectively biased against the top surface of the back member to cover a portion of the channel. The portion of the channel covered by the enclosing member defines a substantially enclosed alignment passageway. The alignment passageway has a first end with the end of the extension guidewire received therein and an opposing second end. The alignment passageway has a transverse cross section substantially complementary to the cross section of the guidewires. By positioning the tapered end of a guidewire within the second end of the alignment passageway, the guidewire can be selectively advanced therein so as to be self-guided into a coupling socket formed in the end of the extension guidewire.

Claims

1. An apparatus for selectively coupling a first guidewire to a second guidewire, wherein the first guidewire has a coupling socket formed in a proximal end thereof and the second guidewire has complimentary tapered end formed in a distal end thereof, the apparatus comprising:

a back member with an elongated alignment channel formed therein and extending the entire width of the back member, the elongated channel being configured

to receive a portion of the first guidewire and a portion of the second guidewire in axial alignment; and

means selectively positionable over a first portion of said channel containing the coupling socket of the first guidewire, for selectively securing the first guidewire in a fixed position relative to the back member while the tapered end of the second guidewire is advanced into and coupled with the coupling socket of the first guidewire; and

means selectively positionable over a second portion of said channel containing the tapered end of the second guidewire for covering the second channel portion such that the complimentary tapered end of the second guidewire can be received and self-guided within the second covered channel portion to effect insertion of the complimentary tapered end of the second guidewire into the coupling socket of the first guidewire.

2. An apparatus as recited in claim 1, wherein the means for selectively securing comprises a retaining member hingedly mounted to the back member so as to selectively fold over and bias against the first guidewire within the alignment channel.

3. An apparatus as recited in claim 1, wherein the means for covering the second channel portion comprises an enclosing member having a substantially planar surface configured to span over the channel having the end of the first guidewire received therein, thereby forming a substantially longitudinally enclosed alignment passageway.

4. An apparatus as recited in claim 3, wherein the alignment passageway has a first end, an opposing second end, and openings formed thereat, the transverse cross section of the alignment passageway being substantially complementary to the cross section of each of the guidewires.

5. An apparatus as recited in claim 3, wherein the enclosing member is hingedly mounted to the back member.

6. An apparatus as recited in claim 1, wherein the channel has a substantially square transverse cross section.

7. An apparatus as recited in claim 1, further comprising means for securing the end of thc first guidewire within the channel prior to covering the end of the first guidewire within the channel.

8. An apparatus as recited in claim 7, wherein the means for securing the end of the first guidewire comprises a retaining member configured to cover a longitudinal portion of the channel having the first guidewire received therein when the retaining member is biased against the back member.

9. An apparatus as recited in claim 8, wherein the retaining member is hingedly connected to the back member.

10. An apparatus for selectively coupling a first guidewire to a second guidewire by inserting the end of one of the guidewires into a coupling socket positioned at an end of the other guidewire, the apparatus comprising:

a back member having a top surface with an open-topped channel formed thereon, the channel having opposing first and second ends and being configured to receive a guidewire;

an enclosing member hingedly mounted to thc back member, the enclosing member being configured to selectively cover at least a portion of the channel when the end of the first guidewire is positioned within the first end of the channel;

an opening communicating with the covered channel at the second end thereof, the opening enabling the end of the second guidewire to be selectively advanced into the channel covered by the enclosing member such that the end of one or the guidewires is self-guided into the coupling socket of the other guidewire and

means for guiding the end of the second guidewire into the open of the channel covered by the enclosing member, and wherein the means for guiding the end of the second guidewire into the opening comprises a notched recess formed on the cover member adjacent to the second end of the alignment channel.

11. An apparatus as recited in claim 10, further comprising a retaining member hingedly connected to the back member, the retaining member being configured to selectively bias against the first guidewire when the first guidewire is received within the alignment channel.

12. An apparatus as recited in claim 10, wherein the back member and the cover member are integrally molded together.

13. An apparatus as recited in claim 10, wherein the back member comprises:

(a) a pair of opposing side walls with the, top surface extending therebetween; and

(b) the channel extending between and through each of the opposing side walls.

14. An apparatus as recited in claim 10, wherein the channel has a width in a range between about 0.01 inches and about 0.02 inches.

15. A guidewire assembly kit comprising

(a) an elongated, flexible guidewire having a proximal tip and a distal end;

(b) an elongated, flexible extension guidewire having an attachment end with a coupling socket positioned thereat, the coupling socket being configured to receive the distal end of the guidewire; and

(c) a guidewire connecting guide comprising;

(i) a back member comprising a top surface extending between opposing first and second sidewalls and an open-topped channel extending on the top surface through and between each of the opposing first and second sidewalls, the channel being configured to receive the distal end of the guidewire and the attachment end of the extension guidewire in longitudinal alignment;

(ii) a securing means having a substantially planar top surface, the securing means being hingedly connected to the back member to selectively cover a longitudinal portion of the channel when top surface of the securing means is biased against the top surface of back member; and

(iii) a enclosing member having a substantially planar top surface, the enclosing member being hingedly connected to the back member to selectively cover a longitudinal portion of the channel adjacent to the portion of the channel covered by the restraining member when the top surface of the enclosing member is biased against the top surface of the back member; and

(iv) a notched recess;

formed on the enclosing member adjacent to the second sidewall of the base member.

16. A guidewire assembly kit as recited in claim 15, wherein the channel has a substantially square transverse cross section.

17. A guidewire assembly kit as recited in claim 15, wherein the channel has a transverse width complementary to the diameter of the guidewire.

18. A guidewire assembly kit as recited in claim 15, wherein the guidewire connecting guide is integrally molded from polypropylene plastic.

19. A method for selectively coupling a first guidewire to a second guidewire by inserting the end of one of the guidewires into a coupling socket positioned at an end of the other guidewire, the method comprising the steps of

positioning the end of the first guidewire within a first end of an open-topped channel formed on a guidewire connecting guide;

covering at least a portion of the channel with a first portion of an enclosing member to form an enclosed alignment passageway having a first end and a second end, the end of the first guidewire being disposed within the first end of the alignment channel;

enclosing with a second portion of the enclosing member the second end of the alignment channel, inserting the end of the second guidewire within the second end of the alignment passageway; and

advancing thc second guidewire within the alignment channel such that the end of one of the guidewires is guided into the coupling socket at the end of the other guidewire.

20. A method as recited in claim 19, further comprising the step of biasing a restraining member against the first guidewire positioned within the channel prior to the step of covering.

21. A method as recited in claim 19, wherein the first guidewire comprises an extension guidewire having the coupling socket positioned at the end thereof.

22. A method as recited in claim 19, wherein the second guidewire comprises an extension guidewire having the coupling socket positioned at the end thereof.