Patent ID: 11896262
Assignee: LEXION MEDICAL, LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A method comprising:
positioning a distal portion of a trocar into a patient cavity, the trocar comprising:
an outer tubular member disposed about an inner tubular member;
a first gas tubing connection fluidly connected to a lumen of the inner tubular member;
a second gas tubing connection fluidly connected to a lumen of the outer tubular member; and
a vacuum break comprising a flapper valve;
wherein:
the inner tubular member is formed with an opening at the distal portion and an opening at a proximal portion of the trocar, the openings being adapted to provide access to the patient cavity, wherein the inner tubular member further comprises a seal to deter the escape of gasses through a proximal portion of the inner tubular member;
the inner tubular member is separated from the outer tubular member by an inner wall;
the vacuum break is fluidly connected to the second gas tubing connection;

supplying an insufflation gas to the patient cavity through the inner tubular member via the first gas tubing connection; and
removing smoke from the patient cavity through the outer tubular member via the second gas tubing connection, wherein a vacuum source is coupled to the second gas tubing connection.