×

Trocar valve assembly

  • US 5,803,919 A
  • Filed: 12/23/1994
  • Issued: 09/08/1998
  • Est. Priority Date: 07/02/1992
  • Status: Expired due to Term
First Claim
Patent Images

1. A valve having an axis extending between a proximal end and an opposing distal end, comprising:

  • an outer wall forming a continuous surface around the axis, the continuous surface extending progressively radially inwardly between the proximal end to the distal enda flange extending radially outwardly at a proximal end of the outer wall;

    a plurality of fold sections extending inwardly of the outer wall and forming a continuous inner wall of the valve, each of the fold sections having an open state and a closed state;

    a first one of the fold sections having a generally concave distal facing surface and a generally convex proximal facing surface;

    a second one of the fold sections disposed in juxtaposition to the first fold section and defining with the first fold section a slit which is sealed when the fold sections are in the closed state and is unsealed when the fold sections are in the open state.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×