Assembly of wire inserter and lock for a medical wire

• US 4,973,329 A
• Filed: 08/26/1989
• Issued: 11/27/1990
• Est. Priority Date: 05/16/1988
• Status: Expired due to Fees

• Current Assignee: Ballard Medical Products (Kimberly-Clark Corporation)
• Original Assignee: Medical Innovations Corporation (Kimberly-Clark Corporation)
• Inventors: Fishman, Udi, Park, Harry
• Primary Examiner(s): Pellegrino, Stephen C.
• Application Number:
  US07/399,578
• Time in Patent Office: 458 Days
• Field of Search: 128/657, 128/778, 604/164, 604/159, 226/127, 226/130, 606/1
• US Class Current: 606/1
• CPC Class Codes: A61B 17/3403 Needle locating or guiding means guides for suture needles A61B17/0482; guiding or tracking by nuclear magnetic resonance G01R33/285
• CPC Class Codes: A61B 2017/00469 for insertion of instruments, e.g. guide wire, optical fibre
• CPC Class Codes: A61M 25/09041 Mechanisms for insertion of guide wires

Abstract

An assembly of a wire inserter and lock is provided. The assembly includes a body portion with a bore inlet and outlet aligned with a locking area and an elongate outlet to align the wire as it passes therethrough.

A spring loaded locking button is mounted within the body and defines two tear-shaped bores through which the wire passes. In the locked position, the wire is wedged into the narrow ends of the tear-shaped bores, and this provides sufficient force to lock the wire without damage.

The body portion may include notched areas around which the wire can be wound, and a hole for capturing the end of the wire to facilitate storage of the wire.

Claims

1. An assembly of a wire inserter, and a lock for a medical wire, comprising:

a. a housing;

b. a push button cavity defined by the housing;

c. wire alignment means defined within the cavity;

d. a biased push button mounted within the cavity, and defining at least one alignment bore aligned with the wire alignment means and shaped to lock with the medical wire; and

,

e. a medical wire mounted for movement along the alignment means, and through the alignment bore;

whereby;

i. when the push button is biased in one direction, it will compress the medical wire into the alignment bore, and thereby lock the wire into the alignment bore, and thereby lock the wire against movement therethrough; and

,

ii. when the push button is releasably biased in another direction, the medical wire will be unlocked from the alignment bore, thereby enabling the medical wire to be adjustable released therefrom for free, linear movement through the housing, without damage to the wire.

2. The assembly of claim 1, in which the push button is adapted to be manipulated with one hand, and the wire is adapted to be manipulated with the other hand.

3. The assembly of claim 2, in which the wire alignment means includes an alignment slot along which the medical wire is adapted for movement.

4. The assembly of claim 3, in which two alignment bores are provided by the push button, for engagement with the medical wire.

5. The assembly of claim 4, in which outward biasing of the push button will compress and lock the medical wire into the wedge-shaped alignment bores, and inward pressure applied to the push button will unlock the medical wire from the alignment bores.

6. The assembly of claim 5, in which the push button is mounted on a riser element, and defines radially opposed bores, including the wedge-shaped portions aligned with the alignment slot.

7. The assembly of claim 6, in which an exit bore is defined by the housing at one end of the alignment slit, and an entry bore is defined at an opposed end from the exit bore, the exit and entry bores, and alignment slot being aligned.

8. The assembly of claim 7, in which the housing defines a proximal nozzle portion having an outlet bore for the wire aligned with the exit and entry bores, the proximal nozzle being sized and shaped for engagement with an entry bore of a catheter.

9. An assembly of a wire inserter, and a lock for a wire, comprising:

a. a housing;

b. a button cavity defined by the housing;

c. a biased button mounted within the cavity and defining at least one alignment edge lock and shaped to align with the said wire; and

,

d. a wire mounted for movement along the alignment edge lock;

whereby;

i. when the button is biased in one direction, it will compress the wire along the alignment edge lock; and

,

ii. when the button is releasably biased in an opposite direction, the wire will be unlocked from the alignment edge lock, thereby enabling the wire to be adjustably released therefrom for free, linear movement through the housing, without damage to the wire.

10. The assembly of claim 9, including a push button adapted to be manipulated with one hand, and a medical wire adapted to be manipulated with the other hand.

11. The assembly of claim 9, in which the alignment edge lock includes an alignment slot along which the medical wire is adapted for movement.

12. The assembly of claim 10, in which two wedgeshaped alignment bores are provided by the push button for engagement with the medical wire.

13. The assembly of claim 12, in which outward biasing of the push button will compress and lock the medical wire into the wedge-shaped alignment bores, and inward pressure applied to the push button will unlock the medical wire from the alignment bores.

14. The assembly of claim 12, in which the push button is mounted on a riser element, and defines radially opposed bores, including the wedge-shaped bores aligned with the alignment slot.

15. The assembly of claim 14, in which an exit bore is defined by the housing at one end of the alignment slot, and an entry bore is defined at an opposed end from the exit bore, the exit and entry bores, and alignment slot being aligned.

16. The assembly of claim 15, in which the housing defines a proximal nozzle portion having an outlet bore for the wire aligned with the exit and entry bores, the proximal nozzle being sized and shaped for engagement with an entry bore of a catheter.

17. An assembly of a wire inserter, and a lock for a wire, comprising:

a. a housing;

b. a button cavity defined by the housing;

c. a button mounted within the cavity and defining at least one alignment lock means shaped to align with the said wire; and

,

d. a wire mounted for movement along the alignment lock means;

whereby;

i. when the button is moved in one direction, it will compress the wire with the alignment lock means; and

,

ii. when the button is moved in an opposite direction, the wire will be unlocked from the alignment lock means, thereby enabling the wire to be adjustably released therefrom for free, linear movement through the housing, without damage to the wire.

18. The assembly of claim 17, is which the wire is a medical wire.

19. The assembly of claim 18, in which the button is a biased push button.

20. The assembly of claim 17, in which the button is adapted to be manipulated with one hand, and the wire is adapted to be manipulated with the other hand.