Short-crimp surgical needle

Details Short-crimp surgical needle Short-crimp surgical needle

1976-05-28

1977-10-18

Pellegrino, Stephen C.

Surgery

Truss

Pad

163 5, 1283355, A61B 1706

Patent

active

040541444

ABSTRACT:
Surgical needles are attached to sutures with controlled pull-out characteristics by a short crimp--that is a crimp whose length is markedly less than the length of the end of the suture in the needle; with an essentially undistorted portion of the needle adjacent to where the suture emerges from the needle, and an essentially undistorted portion around the front of the suture, so that only a short section of the needle is crimped around the suture. This leaves the suture uncrushed where it emerges from the needle and hence of superior strength where sharp bends occur during use. It also leaves an undistorted portion of the suture ahead of the crimp so that on pull-out, the suture is retained not only by frictional engagement of the crimp but also by the forces required for the distortion of the head of the suture so that it will pull through the reduced section of the crimp.

REFERENCES:
patent: 3875946 (1975-04-01), Duncan
patent: 3890975 (1975-06-01), McGregor
patent: 3910282 (1975-10-01), Messer et al.
patent: 3924630 (1975-12-01), Walldorf
patent: 3980177 (1976-09-01), McGregor

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