US 12,029,843 B2
Multi-modal five lumen gas circulation system for use in endoscopic surgical procedures
Mikiya Silver, New Haven, CT (US); Michael J. Kane, Clinton, CT (US); and Michael J. Augelli, Prospect, CT (US)
Assigned to Conmed Corporation, Largo, FL (US)
Filed by Conmed Corporation, Utica, NY (US)
Filed on May 18, 2021, as Appl. No. 17/323,759.
Application 17/323,759 is a division of application No. 16/138,354, filed on Sep. 21, 2018, granted, now 11,027,078.
Prior Publication US 2021/0268211 A1, Sep. 2, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 13/00 (2006.01); A61B 1/313 (2006.01); A61M 39/10 (2006.01)
CPC A61M 13/006 (2014.02) [A61M 39/105 (2013.01); A61B 1/3132 (2013.01); A61M 2205/3337 (2013.01); A61M 2205/3344 (2013.01); A61M 2205/3379 (2013.01); A61M 2205/3584 (2013.01); A61M 2205/3592 (2013.01); A61M 2205/7536 (2013.01); A61M 2205/7545 (2013.01); A61M 2210/105 (2013.01); A61M 2210/1067 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A multi-modal gas delivery device for performing an endoscopic surgical procedure in a surgical cavity, comprising:
a) an insufflation subunit for delivering insufflation gas from a gas source to the surgical cavity and for sensing pressure within the surgical cavity by way of a first connector on an interface plate configured to engage with the gas delivery device;
b) a primary gas circulation pump for delivering pressurized gas to a gas sealed access port by way of a second connector on the interface plate so as to generate a gaseous seal therein and thereby maintain a stable pressure within the surgical cavity and for receiving gas returning from the gas sealed access port that was used to form the gaseous seal by way of a third connector on the interface plate; and
c) a secondary gas circulation pump for continuously evacuating smoke filled gas from the surgical cavity by way of a fourth connector on the interface plate, regardless of the sensed pressure within the surgical cavity.