Continuous gas flow trocar assembly
First Claim
Patent Images
1. A trocar assembly for providing a pressurized insufflation fluid into a patient cavity and sealable access to said patient cavity by a surgical instrument, comprising:
- a) an inner tubular member having a proximal end portion and a distal end portion;
b) an outer tubular member disposed about the inner tubular member, the outer tubular member having a proximal end portion and a distal end portion, the distal end portion of the inner tubular member and the distal end portion of the outer tubular member defining a trocar fluid seal nozzle arranged therebetween, wherein the trocar fluid seal nozzle provides a pressurized fluid seal for penetration by a surgical instrument during a surgical procedure upon the patient.
1 Assignment
0 Petitions
Accused Products
Abstract
A trocar assembly for providing a pressurized insufflation fluid into a patient cavity and for providing sealable access to the patient cavity by a surgical instrument. The assembly comprises an inner tubular member having a proximal end and a distal end. An outer tubular member is disposed about the inner tubular member, the outer tubular member having a proximal end and a distal end. The distal end of the inner tubular member and the distal end of the outer tubular member define a trocar seal nozzle arranged therebetween.
79 Citations
26 Claims
-
1. A trocar assembly for providing a pressurized insufflation fluid into a patient cavity and sealable access to said patient cavity by a surgical instrument, comprising:
-
a) an inner tubular member having a proximal end portion and a distal end portion; b) an outer tubular member disposed about the inner tubular member, the outer tubular member having a proximal end portion and a distal end portion, the distal end portion of the inner tubular member and the distal end portion of the outer tubular member defining a trocar fluid seal nozzle arranged therebetween, wherein the trocar fluid seal nozzle provides a pressurized fluid seal for penetration by a surgical instrument during a surgical procedure upon the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. An access device for use in a surgical procedure within a body cavity, comprising:
-
a) an inner tubular member having opposed proximal and distal end portions; b) an outer tubular member having opposed proximal and distal end portions; and c) a nozzle operatively associated with the inner and outer tubular members for discharging pressurized fluid, wherein the nozzle is adapted and configured to develop a pressurized fluid seal flowing directly around a surgical instrument introduced into the body cavity through the access device, and wherein the pressurized fluid seal directly contacts a surgical instrument without any intervening structure therebetween. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
-
Specification