Christopher B Jobe

US Patent:

20030171763, Sep 11, 2003

Filed:

Apr 7, 2003

Appl. No.:

10/408857

Inventors:

Duane Pitt - Scottsdale AZ, US
Christopher Jobe - Redlands CA, US

Assignee:

Loma Linda University Medical Center

International Classification:

A61B017/04

US Classification:

606/139000, 606/148000

Abstract:

The present invention is related to methods and apparatus that can enhance the security of a suture knot by annealing a portion of the suture knot. Such a suture knot is less likely to fail by slippage. Advantageously, the methods and apparatus can operate in a liquid environment, such as the inside of a body. Conventional knots made from monofilament sutures exhibit an unfortunate tendency to slip or untie. A surgeon can tie a conventional monofilament suture using standard knot tying techniques and anneal the suture. The annealing can fuse the tails of the suture together, thereby preventing failure by slippage. In one embodiment, the annealing textures the surface of the monofilament tails, thereby increasing friction and resistance to slippage. In another embodiment, the annealing is applied to the last throw in the knot.

US Patent:

6596015, Jul 22, 2003

Filed:

Jul 13, 2000

Appl. No.:

09/615435

Inventors:

Duane D. H. Pitt - Scottsdale AZ
Christopher M. Jobe - Redlands CA

Assignee:

Loma Linda University Medical Center - Loma Linda CA

International Classification:

A61B 1704

US Classification:

606232

Abstract:

The present invention is related to methods and apparatus that can enhance the security of a suture knot by annealing a portion of the suture knot. Such a suture knot is less likely to fail by slippage. Advantageously, the methods and apparatus can operate in a liquid environment, such as the inside of a body. Conventional knots made from monofilament sutures exhibit an unfortunate tendency to slip or untie. A surgeon can tie a conventional monofilament suture using standard knot tying techniques and anneal the suture. The annealing can fuse the tails of the suture together, thereby preventing failure by slippage. In one embodiment, the annealing textures the surface of the monofilament tails, thereby increasing friction and resistance to slippage. In another embodiment, the annealing is applied to the last throw in the knot.