Cannula skirt

Details Cannula skirt Cannula skirt

1992-06-25

1993-06-01

Hirsch, Paul J.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

128DIG26, A61M 2502

Patent

active

052155315

ABSTRACT:
The present invention provides a device for immobilizing a cannula or sheath which is inserted into a patient's body in a laparoscopic surgical procedure. The device comprises a cannula skirt through which the cannula passes. The skirt contains a leakage cavity therein which is configured to minimize the pull-off forces which would tend to cause a separation of the skirt from the skin to which it is adhered during the surgical procedure. In addition, the leakage cavity provides enhanced flexibility to the cannula skirt so that the cannula can be angled during the procedure without causing excessive stress on the adhesive. A ratchet ring clamp is also provided on the cannula skirt to constrict the cannula skirt and thereby immobilize the cannula after the cannula has been inserted through the skirt.

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patent: 4579120 (1986-04-01), MacGregor
patent: 4675006 (1987-06-01), Hrushesky
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patent: 4959055 (1990-09-01), Hillyer
patent: 5073169 (1991-12-01), Raiken
patent: 5137520 (1992-08-01), Maxson et al.

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