Adapter seal for laparoscopic cannula
First Claim
1. An adapter seal adapted for facilitating the use of a small instrument within the bore of a cannula of the type used in laparoscopic surgery, the cannula having a proximal end adapted to remain outside the surgical site through which instruments may be inserted, the adapter seal comprising:
- a body portion formed on an elastomeric material and being adapted for removably mounting on the proximal end of the cannula, the body portion having an aperture therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture; and
an insertion guide mounted on the body portion adapted to guide the small instrument toward the aperture, the insertion guide being relatively rigid in comparison with the body portion, the insertion guide having a wall forming a generally conical passageway for guiding small instruments toward the aperture of the body portion.
6 Assignments
0 Petitions
Accused Products
Abstract
An adapter seal adapted to facilitate the use of a small instrument within a laparoscopic cannula. The adapter seal comprises a body portion formed of elastomeric material, and a relatively rigid insertion guide mounted on the body portion The body portion has an aperture therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture The insertion guide has a wall forming a generally conical passageway for guiding small instruments toward the aperture of the body portion. A tether may be provided for holding the adapter seal adjacent the cannula when the body portion is disconnected from the cannula, and the insertion guide may be color-coded to indicate the size aperture through the body portion of the adapter seal.
-
Citations
20 Claims
-
1. An adapter seal adapted for facilitating the use of a small instrument within the bore of a cannula of the type used in laparoscopic surgery, the cannula having a proximal end adapted to remain outside the surgical site through which instruments may be inserted, the adapter seal comprising:
-
a body portion formed on an elastomeric material and being adapted for removably mounting on the proximal end of the cannula, the body portion having an aperture therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture; and an insertion guide mounted on the body portion adapted to guide the small instrument toward the aperture, the insertion guide being relatively rigid in comparison with the body portion, the insertion guide having a wall forming a generally conical passageway for guiding small instruments toward the aperture of the body portion. - View Dependent Claims (8, 9, 10)
-
-
2. An adapter seal adapted for facilitating the use of a small instrument within the bore of a cannula of the type used in laparoscopic surgery, the cannula of the type used in laparoscopic surgery, the cannula having a proximal end adapted to remain outside the surgical site through which instruments may be inserted, the adapter seal comprising:
-
a body portion formed of an elastomeric material and being adapted for mounting on the proximal end of the cannula, the body portion having an aperture therein adapted to sealingly engage and support the small instrument while permitting movement of the instrument through the aperture; an insertion guide mounted on the body portion adapted to guide the small instrument toward the aperture, the insertion guide being relatively rigid in comparison with the body portion, the insertion guide having a wall forming a generally conical passageway for guiding small instruments toward the aperture of the body portion; and means for attaching the adapter seal to the cannula such that the body member is movable from a first position, securely attached to the cannula, yet away from the bore, to a second position, wherein the body portion is mounted adjacent the proximal end of the cannula such that the aperture of the body portion is substantially aligned with the bore of the cannula, and the proximal end of the bore of the cannula is sealed by the body portion except to flow through the aperture of the body portion. - View Dependent Claims (3, 4, 5, 6, 7)
-
-
11. A combination of a cannula used in laparoscopic surgery and an adapter seal for facilitating the use of a small instrument within the cannula, the combination comprising:
-
a cannula having proximal and distal ends, and a central bore extending between the proximal and distal ends of the cannula, the distal end of the cannula being adapted to be inserted into a body cavity to facilitate using surgical instruments within the body cavity, the proximal end of the cannula being adapted to remain outside the body cavity and through which surgical instruments may be inserted; and an adapter seal comprising a body portion formed of an elastomeric material and being adapted for removably mounting on the proximal end of the cannula, the body portion having an aperture therein adapted to sealingly engage and support a small surgical instrument while permitting movement of the instrument through the aperture, and an insertion guide mounted on the body portion adapted to guide the small surgical instrument toward the aperture, the insertion guide being relatively rigid in comparison with the body portion, the insertion guide having a wall forming a generally conical passageway for guiding small surgical instruments toward the aperture of the body portion. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
- 19. The combination according to claim Il wherein the insertion guide is colored to provide an indication of the size of aperture provided in the body portion.
Specification