×

Endoscopic portal having multiple universal seals and method of introducing instruments therethrough

  • US 5,788,676 A
  • Filed: 03/25/1996
  • Issued: 08/04/1998
  • Est. Priority Date: 03/25/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. An endoscopic portal for establishing communication with a body cavity for the introduction of instruments through the endoscopic portal comprisinga first seal having a variable size passage to permit instruments of varying sizes to be passed therethrough, said first seal being disposed in a closed position wherein said variable size passage is closed and being movable to an open position wherein said variable size passage is open;

  • a second seal disposed distally of said first seal and having a variable size passage axially aligned with said variable size passage of said first seal to permit instruments of varying sizes to be passed therethrough, said second seal being disposed in a closed position wherein said variable size passage of said second seal is closed and being movable to an open position wherein said variable size passage of said second seal is open;

    a tubular expander aligned with said variable size passages and having proximal and distal ends, said tubular expander being insertable in at least one of said seals to move said at least one seal from said closed position to said open position such that instruments of various sizes can be introduced through said tubular expander and said at least one seal, said tubular expander being withdrawable from said at least one seal such that said at least one seal is biased toward said closed position to contact instruments of various sizes in said variable size passage of said at least one seal to form a seal therewith; and

    a housing mounting said first and second seals and said tubular expander with said Proximal and distal ends of said tubular expander disposed in said housing.

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