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US 10,238,421 B2Granted
Method and system for gas maintenance to a body cavity using a trocar
AssigneeLexion Medical, LLC
InventorCarl M. Geisz
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a method includes positioning a portion of a trocar into a patient cavity. The trocar includes an inner tubular member and an outer tubular member disposed about the inner tubular member. The outer tubular member has at least a first chamber and a second chamber separated from the first chamber. The method also includes inserting a surgical instrument into the inner tubular member, and supplying an insufflation gas to the patient cavity by providing the insufflation gas through the first chamber of the outer tubular member.
Claims14
A method comprising:
- positioning a portion of a trocar into a patient cavity, the trocar comprising an inner tubular member having a length, an outer tubular member, and a vacuum break, wherein:
- the outer tubular member is partitioned into at least a first chamber and a second chamber;
- the second chamber is separated from the first chamber;
- the first chamber and the second chamber are disposed about, and are in contact with, the inner tubular member for the entire length of the inner tubular member;
- the vacuum break is a valve that remains closed unless a pressure in the patient cavity is lower than or equal to an ambient pressure;
- inserting a surgical instrument into the inner tubular member;
- supplying an insufflation gas to the patient cavity by providing the insufflation gas through the first chamber of the outer tubular member;
- and
- removing smoke from the patient cavity through the second chamber of the outer tubular member.
6 more elements
A method comprising:
- positioning a trocar into a patient cavity, the trocar comprising an inner tubular member having a length, and an outer tubular member disposed about the inner tubular member, wherein:
- the outer tubular member is partitioned into at least a first chamber and a second chamber;
- both the first chamber and the second chamber are in contact with the inner tubular member for the entire length of the inner tubular member;
- and
- the trocar further comprises a vacuum break disposed therein;
- inserting a surgical instrument into the inner tubular member;
- supplying an insufflation fluid to the patient cavity by providing the insufflation gas through the first chamber of the outer tubular member;
- removing smoke from the patient cavity by applying a vacuum to a conduit in connection with the inner tubular member;
- and
- relieving negative pressure from the patient cavity through the vacuum break when a pressure in the patient cavity is less than or equal to an ambient pressure.
7 more elements
A method comprising:
- positioning a trocar into a patient cavity, the trocar comprising an inner tubular member having a length, and an outer tubular member disposed about the inner tubular member, wherein:
- the outer tubular member is partitioned into at least a first chamber and a second chamber;
- the first chamber and the second chamber are in contact with the inner tubular member for the entire length of the inner tubular member;
- inserting a surgical instrument into the inner tubular member;
- supplying an insufflation fluid to the patient cavity by providing the insufflation gas through the first chamber of the outer tubular member;
- measuring a pressure associated with the patient cavity through the inner tubular member;
- and
- relieving negative pressure from the patient cavity through a vacuum break, wherein the negative pressure is relieved based on a pressure associated with the patient cavity and an atmospheric pressure.
5 more elements
Dependencies are inferred from the claim text.