# US 12,005,183 B2 · Systems and methods for conducting smoke evacuation during laparoscopic surgical procedures

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- Number: US 12,005,183 B2
- Document ID: US12005183B2
- Status: Granted
- Kind: B2
- Application number: 16/851,448
- Filed: 2020-04-17
- Published: 2020-07-30
- Granted: 2024-06-11
- Earliest claimed: 2012-11-20
- Assignees: Conmed Corporation
- Applicants: Conmed Corporation
- Inventors: Raymond Yue-Sing Tang; Kenneth Blier; Ralph Stearns; Kurt Azarbarzin; Dominick Mastri
- Web page: https://patentgrep.com/patent/US12005183B2

## CPC

- A61M 13/006: {with gas recirculation}
- A61B 17/3462: {with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals (expandable cannulas A61B17/3417)}
- A61B 17/3474: {Insufflating needles, e.g. Veress needles}
- A61B 2218/006: for smoke evacuation
- A61B 2218/008: for smoke evacuation
- A61M 2205/3337: Controlling, regulating pressure or flow by means of a valve by-passing a pump
- A61M 2205/3344: Measuring or controlling pressure at the body treatment site
- A61M 2205/7545: for solid matter, e.g. microaggregates
- F04C 2270/041: Controlled or regulated
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS

## Abstract

An insufflation and smoke evacuation system for use during laparoscopic surgical procedures is disclosed that includes a pump for circulating pressurized gas within the system, a tri-lumen cannula communicating with an insufflation source by way of an insufflation supply line and with the supply side of the pump by way of a pressurized gas supply line, and a single lumen cannula communicating with a suction side of the pump by way of a vacuum line, wherein a communication line extends between the tri-lumen cannula and the vacuum line.

## Claims

### Claim 1

An insufflation and smoke evacuation system for use during laparoscopic surgical procedures, comprising:
a) an insufflation source;
b) a pump for circulating pressurized gas within the system, the pump having a supply side and a suction side;
c) a tri-lumen cannula having a proximal housing defining an inner bowl area and a longitudinal conduit extending distally from an exit at a distal end of the proximal housing, the proximal housing communicating with the insufflation source by way of an insufflation gas supply line and with the supply side of the pump by way of a pressurized gas supply line; and
d) a single lumen cannula communicating with the suction side of the pump by way of a vacuum line, wherein a communication line extends between the inner bowl area of the tri-lumen cannula and the vacuum line, such that the proximal housing of the tri-lumen cannula has a first gas inflow path, a second gas inflow path, and a gas outflow path, wherein the first gas inflow path is associated with the insufflation gas supply line, the second gas inflow path is associated with the pressurized gas supply line and the gas outflow path is associated with the communication line that extends between the inner bowl area of the tri-lumen cannula and the vacuum line, wherein the gas outflow path extends radially from the proximal housing and is separate and distinct from the exit at the distal end of the proximal housing, and wherein the longitudinal conduit of the tri-lumen cannula is configured to be used as an access port for a laparoscope during laparoscopic surgical procedures, and the tri-lumen cannula and the single lumen cannula are configured to be arranged within an abdominal cavity such that when smoke is generated within the abdominal cavity during a laparoscopic surgical procedure, the smoke will exit the abdominal cavity through the single lumen cannula in an area located away from a distal end of the laparoscope so as not to impact visibility through the laparoscope.

### Claim 2 (depends on 1)

An insufflation and smoke evacuation system as recited in claim 1, further comprising a bypass valve in parallel communication with the pump.

### Claim 3 (depends on 1)

An insufflation and smoke evacuation system as recited in claim 1, further comprising a filter device operatively associated with the vacuum line.