Patent ID: 6228061
Filing Date: 2001-05-08
Classification: A61B

Abstract:
A cannula seal comprising:a housing having an instrument path, said housing for connecting to a cannula;a first seal mounted in said housing, said first seal having an opening to sealingly receive an instrument having a first diameter; a second seal mounted in said housing, said second seal having an opening to sealingly receive an instrument having a second diameter;said second seal being pivotally mounted within said housing and being adapted to pivot out of said instrument path to allow an instrument having a diameter greater than the opening in said second seal to pass by said second seal; said second seal is mounted with a sub-assembly which is hinged to said housing by a hinge said sub-assembly includes a door having a pocket to receive said second seal and a skid plate mounted to said door over said second seal to hold said second seal between said skid plate and said door retaining said second seal within said sub-assembly.