Trocar seal
First Claim
1. A seal for installation on a trocar having a proximal end that has an access port, which seal is generally cylindrical in shape and has upper portion and lower portion, the lower portion of the seal being formed for mating engagement with the access port at the proximal end of the trocar and the upper portion of the seal having:
- (a) a central hole formed therein to permit a surgical instrument to pass through the seal; and
(b) a plurality of folds formed in the upper portion in proximity to the central hole.
1 Assignment
0 Petitions
Accused Products
Abstract
A seal is disclosed for installation on the proximal end of a trocar. The seal is generally cylindrical in shape and has an upper portion and a lower portion. The lower portion is formed for mating engagement with the proximal end of the trocar. The upper portion comprises a central hole for insertion of a surgical instrument and a plurality of folds in proximity to the central hole. The folds allow the central hole to dilate and contract to seal on surgical instruments of varying diameters, and various configurations of folds are disclosed.
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Citations
32 Claims
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1. A seal for installation on a trocar having a proximal end that has an access port, which seal is generally cylindrical in shape and has upper portion and lower portion, the lower portion of the seal being formed for mating engagement with the access port at the proximal end of the trocar and the upper portion of the seal having:
- (a) a central hole formed therein to permit a surgical instrument to pass through the seal; and
(b) a plurality of folds formed in the upper portion in proximity to the central hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
- (a) a central hole formed therein to permit a surgical instrument to pass through the seal; and
Specification