Patent ID: 6551282
Filing Date: 2003-04-22
Classification: A61B,A61M

Abstract:
A seal assembly for use with a cannula, which comprises:a seal housing defining a central longitudinal axis and a central opening therethrough for reception of an elongated instrument, the seal housing having internal upper and lower housing surfaces defining an annulus therebetween adjacent the central opening; and a monolithic universal seal mounted within the seal housing, the monolithic universal seal including an outer ring fixedly mounted to the seal housing, an inner ring disposed within the annulus, and an inner seal portion extending radially inwardly from the inner ring and defining an aperture for sealed reception of the elongated instrument, the inner ring being deformable and having upper and lower contacting surfaces for contacting respective upper and lower housing surfaces defining the annulus, the inner ring being adapted for radial movement within the annulus and the upper and lower contacting surfaces being adapted to be deformed upon offset insertion of the elongated instrument within the central opening of the seal housing thereby substantially preserving a seal about the elongated instrument disposed within the aperture of the inner seal portion.