Tyco Healthcare Group LP

Dexide, Incorporated

Other

Donald D Exline

William A Pierce

A universal seal is shown with orbital movement of a center opening for use in endoscopic surgery. A two part seal housing encloses the universal seal in an annulus surrounding an insertion port. The outer periphery of the universal seal is clamped between the two parts at the outer edge of the annulus. An inner ring of the universal seal is free to move from side-to-side inside the annulus while maintaining rubbing contact with the upper and lower surfaces of the annuluses for vertical support. The seal housing and universal seal are mounted on a proximal end of a cannula which allows access therethrough for the endoscopic surgery. The center opening of the universal seal is in general alignment with the insertion port of the seal housing, but the center opening and inner ring may move from side to side when medical instruments are inserted through the insertion port, the center opening, and the cannula and moved from side to side.

Universal seal for use with endoscopic cannula

A universal seal is shown with orbital movement of a center opening for use in endoscopic surgery A two part seal housing encloses the universal seal in an annulus surrounding an insertion port. The outer periphery of the universal seal is clamped between the two parts at the outer edge of the annulus. An inner ring of the universal seal is free to move from side-to-side inside the annulus while maintaining rubbing contact with the upper and lower surfaces of the annuluses for vertical support. The seal housing and universal seal are mounted on a proximal end of a cannula which allows access therethrough for the endoscopic surgery. The center opening of the universal seal is in general alignment with the insertion port of the seal housing, but the center opening and inner ring may move from side to side when medical instruments are inserted through the insertion port, the center opening, and the cannula and moved from side to side.

A cannula comprises a housing secured to a generally tubular sleeve member. The housing is provided with irrigation and evacuation fluid ports for connection to irrigation and evacuation conduits. An instrument port is formed in the housing and aligned with the sleeve member, wherein a surgical instrument can be inserted through the instrument port, housing, and sleeve member and into the bodily cavity. The instrument port includes seal members to seal against fluid leakage from the cannula with or without a surgical instrument passing through the housing and sleeve member. A valve member is rotatably carried by the housing to selectively obstruct one or more of the irrigation and evacuation ports. The valve is arranged such that the surgical instrument may remain in the housing and sleeve member during manipulation of the valve.

Irrigation and evacuation cannula

A surgical sleeve that includes a housing has an opening through which surgical instruments are introduced into the surgical sleeve. A sleeve portion extends from the housing and has an inner diameter coaxial with the opening in the housing. A reducer assembly is removably secured to the housing and includes a rigid seal disc for rotation in a plane transverse to the sleeve portion. A resilient, laminar seal layer is generally coextensive with the seal disc and is disposed between the disc and the housing to sealingly engage a portion of the housing. A plurality of apertures are formed in the seal disc and seal layer and have varying diameters to define seals that are selectively movable, by rotation of the seal disc, over the opening in the housing to seal against exteriors of instruments disposed in the sleeve.

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Covington, KY, United States of America

Donald D Exline