Patent ID: 8096976
Filing Date: 2012-01-17
Classification: A61M,F16K

Abstract:
1. A valve body mounted in a hub of a medical tool, the hub possessing an inner circumferential surface bounding an interior of the hub, the medical tool also including a tubular sheath extending distally from the hub, the tubular sheath being configured and sized for positioning in a living organism, the valve body comprising: a plate-shaped elastic body possessing a first face facing the interior of the hub and an oppositely facing second face, the elastic body including an opening and closing section which opens in response to insertion of an elongated medical member and closes in response to pulling out of the elongated medical member, the opening and closing section comprising: a first slit formed in a thickness direction of the elastic body, the first slit extending to the second face but not opening to the first face; a second slit formed in a thickness direction of the elastic body, the second slit extending to the first face but not opening to the second face, the second slit intersecting the first slit in an interior portion of the elastic body that is spaced from the first and second faces of the elastic body; two ribs on the second face of the elastic body, each rib having opposite ends, each end of one rib being adjacent to but spaced from one of the ends of the other rib so that the two ribs are spaced apart from one another and positioned in opposing relation to each other, the second slit being positioned between the two ribs, each rib possessing an arcuate outer surface in contacting engagement with the inner circumferential surface of the hub; and projections on the second face of the elastic body, each of the projections extending radially and being positioned between the second slit and one of the ribs.