Rotating guidewire extension system
First Claim
Patent Images
1. A guidewire extension system comprising:
- an extension guidewire adapted to be releasably but firmly connected to a proximal end of an initial or primary guidewire, said extension guidewire having a distal end and a proximal end, and a connecting assembly which is mounted at the distal end of said extension guidewire, which includes a coiled spring constructed and arranged to receive and grippingly engage and lock against a proximal end of the initial or primary guidewire, and which includes a small diameter tube having a proximal end and a distal end, said coiled spring being received in said tube, said distal end of said extension guidewire being received in said proximal end of said tube, and a rotatable connection between said distal end of said guidewire and said proximal end of said tube providing rotatable journaling of said extension guidewire to said tube for minimizing, if not eliminating, twisting of the extension guidewire when disconnecting the extension guidewire from the initial guidewire.
2 Assignments
0 Petitions
Accused Products
Abstract
The guidewire extension system includes an extension guidewire adapted to be releasably but firmly connected to the proximal end of an initial guidewire. The extension guidewire has a distal end and a proximal end, and the system further comprises a connecting assembly which is mounted at the distal end of the extension guidewire, which includes a coiled spring constructed and arranged to receive and grippingly engage and lock against a distal end of the initial guidewire, and which includes a swivel joint for minimizing, if not eliminating, twisting of the extension guidewire when disconnecting the extension guidewire from the initial guidewire.
-
Citations
16 Claims
-
1. A guidewire extension system comprising:
- an extension guidewire adapted to be releasably but firmly connected to a proximal end of an initial or primary guidewire, said extension guidewire having a distal end and a proximal end, and a connecting assembly which is mounted at the distal end of said extension guidewire, which includes a coiled spring constructed and arranged to receive and grippingly engage and lock against a proximal end of the initial or primary guidewire, and which includes a small diameter tube having a proximal end and a distal end, said coiled spring being received in said tube, said distal end of said extension guidewire being received in said proximal end of said tube, and a rotatable connection between said distal end of said guidewire and said proximal end of said tube providing rotatable journaling of said extension guidewire to said tube for minimizing, if not eliminating, twisting of the extension guidewire when disconnecting the extension guidewire from the initial guidewire.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
12. A guidewire extension system for coupling a distal end of an extension guidewire to a proximal end of an initial guidewire, said system comprising a rotatable connecting assembly mounted to one of:
- the distal end of the extension guidewire and the proximal end of the initial guidewire; and
including a smaller diameter tube and a coiled spring fixed in said tube and constructed and arranged to receive the other of;
the proximal end of the initial guidewire and the distal end of the extension guidewire.
- the distal end of the extension guidewire and the proximal end of the initial guidewire; and
-
13. A method for connecting an extension guidewire to an initial guidewire, said method comprising the steps of:
-
providing a length of extension guidewire; providing a rotatable connecting assembly on one of;
the distal end of the extension guidewire and the proximal end of the initial guidewire;providing the rotatable connecting assembly with a small diameter tube and a coiled spring fixed in the tube and arranging same to receive and grippingly engage/lock against an end of a guidewire; and axially inserting into the connecting assembly and within the envelope of the coiled spring one of;
the proximal end of the initial guidewire and the distal end of the extension guidewire;
thereby to connect firmly the distal end of the extension guidewire to the proximal end of the initial guidewire. - View Dependent Claims (14, 15, 16)
-
Specification