Cannula purse string suture clamping device

Details Cannula purse string suture clamping device Cannula purse string suture clamping device

1997-11-18

1999-06-15

Jackson, Gary

Surgery

Instruments

Surgical mesh, connector, clip, clamp or band

606139, A61B 1704

Patent

active

059117281

ABSTRACT:
Several embodiments of a clamping device are disclosed, for tightening and securing a purse string suture used to seal the tissue around a cannula or a catheter or the like placed in a heart, major vessel or other tissue structure. The clamping device includes a compressible sleeve means solidly secured at a proximal end to a compression-applying means such as a clamp mechanism. A suture-pulling needle is inserted through a common lumen, whereby the trailing ends of the suture thread which forms the purse string suture may be pulled through the compressible sleeve means and clamp mechanism. Application of a force to the clamp mechanism while it is not locked to the trailing ends compresses the compressible sleeve means. Release of the clamp mechanism locks the enclosed trailing ends of the suture thread. The compressed sleeve means applies constant and precalibrated tension on the purse string suture to continuously maintain the seal about the cannula. The clamping device is removed by unlocking the clamp mechanism and withdrawing the device from the suture thread.

REFERENCES:
patent: 5188636 (1993-02-01), Fedotov
patent: 5382260 (1995-01-01), Dormandy, Jr. et al.
patent: 5490856 (1996-02-01), Person et al.
patent: 5649938 (1997-07-01), Allen et al.
patent: 5683405 (1997-11-01), Yacoubian et al.
patent: 5722982 (1998-03-01), Ferreira et al.
patent: 5792154 (1998-08-01), Doan et al.

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