# US 11,027,078 B2 · Multi-modal five lumen gas circulation system for use in endoscopic surgical procedures

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- Number: US 11,027,078 B2
- Document ID: US11027078B2
- Status: Granted
- Kind: B2
- Application number: 16/138,354
- Filed: 2018-09-21
- Published: 2020-03-26
- Granted: 2021-06-08
- Earliest claimed: 2018-09-21
- Assignees: Conmed Corporation
- Applicants: Conmed Corporation
- Inventors: Mikiya Silver; Michael J. Kane; Michael J. Augelli
- Web page: https://patentgrep.com/patent/US11027078B2

## CPC

- A61M 13/006: {with gas recirculation}
- A61B 17/3474: {Insufflating needles, e.g. Veress needles}
- A61M 39/105: {Multi-channel connectors or couplings, e.g. for connecting multi-lumen tubes (multi-channel connectors in general F16L37/56)}
- A61B 1/3132: {for laparoscopy}
- A61M 16/0816: {Joints or connectors}
- A61M 16/0858: {Pressure sampling ports}
- A61M 2205/123: with incorporated reservoirs
- A61M 2205/125: with incorporated filters
- A61M 2205/3306: Optical measuring means
- 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 2205/3379: Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M 2205/3382: Upper level detectors
- A61M 2205/3569: sublocal, e.g. between console and disposable
- A61M 2205/3584: using modem, internet or Bluetooth®
- A61M 2205/3592: using telemetric means, e.g. radio or optical transmission
- A61M 2205/502: User interfaces, e.g. screens or keyboards
- A61M 2205/6018: providing set-up signals for the apparatus configuration
- A61M 2205/6054: Magnetic identification systems
- A61M 2205/75: with filters
- A61M 2205/7536: allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes
- A61M 2205/7545: for solid matter, e.g. microaggregates
- A61M 2210/1021: Abdominal cavity
- A61M 2210/105: Oesophagus
- A61M 2210/1067: Anus
- 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)

## Abstract

A system is disclosed for performing an endoscopic surgical procedure in a surgical cavity, which includes a multi-modal gas delivery device including a primary gas circulation pump, a secondary gas circulation pump and an insufflation subunit, and an interface plate adapted and configured to engage with the multi-modal gas delivery device and including a connector and a filter seat corresponding to five different lumens, each of which provides a different functionality.

## Claims

### Claim 1

A system for performing an endoscopic surgical procedure in a surgical cavity, comprising:
a) a multi-modal gas delivery device including a housing enclosing internally a primary gas circulation pump, a secondary gas circulation pump and an insufflation subunit; and
b) an interface plate adapted and configured to engage with the multi-modal gas delivery device and including opposed front and rear surfaces, wherein five connectors are located on the front surface of the interface plate and five filter seats are located on the rear surface of the interface plate, and wherein each of the five filter seats on the rear surface of the interface plate has a port formed therein that communicates with an oppositely adjacent one of the five connectors on the front surface of the interface plate to form a connection, wherein each of the five connections corresponds to one of the following five lumens:
i) an insufflation and sensing lumen for delivering insufflation gas from the insufflation subunit to the surgical cavity and for facilitating sensing of surgical cavity pressure;
ii) a gas delivery lumen for delivering pressurized gas from the primary gas circulation pump to a gas sealed access device;
iii) a gas return lumen for returning gas used to generate a gaseous seal within the gas sealed access device back to the primary gas circulation pump;
iv) a smoke evacuation lumen for removing smoke filled gas from the surgical cavity by way of the secondary gas circulation pump; and
v) a recirculation supply lumen for returning filtered gas back to the surgical cavity from the secondary gas circulation pump.

### Claim 2 (depends on 1)

A system as recited in claim 1, wherein the insufflation and sensing lumen is attached to a respective connector on the front surface of the interface plate, and a filter canister is associated with the connected filter seat on the rear surface of the interface plate to communicate with the attached lumen.

### Claim 3 (depends on 2)

A system as recited in claim 2, wherein a distal end of the insufflation and sensing lumen has a coupling that is adapted and configured to connect with a valve sealed access device, which is distinct from the gas sealed access device.

### Claim 4 (depends on 1)

A system as recited in claim 1, wherein the insufflation and sensing lumen, the gas delivery lumen and the gas return lumen are attached to respective connectors on the front surface of the interface plate, and filter canisters are associated with connected filter seats on the rear surface of the interface plate to communicate with each of the attached lumens.

### Claim 5 (depends on 4)

A system as recited in claim 4, wherein distal ends of the insufflation and sensing lumen, the gas delivery lumen and the gas return lumen are attached to a tri-lumen coupling that is adapted and configured to connect with the gas sealed access device.

### Claim 6 (depends on 4)

A system as recited in claim 4, wherein distal ends of the gas delivery lumen and the gas return lumen are attached to a bi-lumen coupling that is adapted and configured to connect with the gas sealed access device, and a distal end of the insufflation and sensing lumen has a coupling that is adapted and configured to connect with a valve sealed access device.

### Claim 7 (depends on 1)

A system as recited in claim 1, wherein the smoke evacuation lumen and the recirculation supply lumen are attached to respective connectors on the front surface of the interface plate, and filter canisters are associated with connected filter seats on the rear surface of the interface plate to communicate with each of the attached lumens.

### Claim 8 (depends on 7)

A system as recited in claim 7, wherein a distal end of the smoke evacuation lumen has a coupling that is adapted and configured to connect with a first valve sealed access device and a distal end of the recirculation supply lumen has a coupling that is adapted and configured to connect with a second valve sealed access device.

### Claim 9 (depends on 1)

A system as recited in claim 1, wherein the insufflation and sensing lumen and the smoke evacuation lumen are attached to respective connectors on the front surface of the interface plate, and filter canisters are associated with connected filter seats on the rear surface of the interface plate to communicate with each of the attached lumens.

### Claim 10 (depends on 9)

A system as recited in claim 9, wherein a distal end of the insufflation and sensing lumen is combined with a distal end of the recirculation supply lumen and has a coupling that is adapted and configured to connect with a first valve sealed access device and a distal end of the smoke evacuation lumen has a coupling that is adapted and configured to connect with a second valve sealed access device.

### Claim 11 (depends on 9)

A system as recited in claim 9, wherein a distal end of the insufflation and sensing lumen has a coupling that is adapted and configured to connect with a first valve sealed access port and the smoke evacuation lumen has a coupling that is adapted and configured to connect with a second first valve sealed access port.

### Claim 12 (depends on 1)

A system as recited in claim 1, wherein the insufflation and sensing lumen, the smoke evacuation lumen and the recirculation supply lumen are attached to respective connectors on the front surface of the interface plate, and filter canisters are associated with connected filter seats on the rear surface of the interface plate to communicate with each of the attached lumens.

### Claim 13 (depends on 12)

A system as recited in claim 12, wherein a distal end of the insufflation and sensing lumen has a coupling that is adapted and configured to connect with a first valve sealed access device, a distal end of the smoke evacuation lumen has a coupling that is adapted and configured to connect with a second valve sealed access device and a distal end of the recirculation supply lumen has a coupling that is adapted and configured to connect with a third valve sealed access device.

### Claim 14 (depends on 1)

A system as recited in claim 1, wherein the insufflation and sensing lumen, the gas delivery lumen, the gas return lumen, the smoke evacuation lumen and the recirculation supply lumen are attached to respective connectors on the front surface of the interface plate, and filter canisters are associated with connected filter seats on the rear surface of the interface plate to communicate with each of the attached lumens.

### Claim 15 (depends on 14)

A system as recited in claim 14, wherein distal ends of the insufflation and sensing lumen, the gas delivery lumen and the gas return lumen are attached to a tri-lumen coupling that is adapted and configured to connect with the gas sealed access device, a distal end of the smoke evacuation lumen has a coupling that is adapted and configured to connect with a first valve sealed access device and a distal end of the recirculation supply lumen has a coupling that is adapted and configured to connect with a second valve sealed access device.

### Claim 16 (depends on 14)

A system as recited in claim 14, wherein distal ends of the gas delivery lumen and the gas return lumen are attached to a bi-lumen coupling that is adapted and configured to connect with the gas sealed access device, a distal end of the insufflation and sensing lumen has a coupling that is adapted and configured to connect with a first valve sealed access device, a distal end of the smoke evacuation lumen has a coupling that is adapted and configured to connect with a second valve sealed access device and a distal end of the recirculation supply lumen has a coupling that is adapted and configured to connect with a third valve sealed access device.

### Claim 17 (depends on 1)

A system as recited in claim 1, wherein each filter seat located on the rear surface of the interface plate is associated with a filter canister that includes a filter element for filtering gas flowing therethrough.

### Claim 18 (depends on 17)

A system as recited in claim 17, wherein the filter canister associated with the insufflation and sensing lumen is formed integral with the interface plate.

### Claim 19 (depends on 18)

A system as recited in claim 18, wherein the filter canisters associated with the gas delivery lumen, the gas return lumen, the smoke evacuation lumen and the recirculation supply lumen are formed separate from the interface plate.

### Claim 20 (depends on 17)

A system as recited in claim 17, wherein each filter canister is formed separate from the interface plate and is attached to the interface plate by way of an adhesive, spin welding, laser welding, ultrasonic welding, threaded connection or an interference fit.

### Claim 21 (depends on 20)

A system as recited in claim 20, wherein each filter canister formed separate from the interface plate has an identical construction to promote modularity.

### Claim 22 (depends on 20)

A system as recited in claim 20, wherein each filter canister formed separate from the interface plate includes means for detecting a fluid level within the filter canister.

### Claim 23 (depends on 17)

A system as recited in claim 17, wherein each filter element is configured for bi-directional flow.

### Claim 24 (depends on 17)

A system as recited in claim 17, wherein the filter element included with each filter canister is selected from a group of filter media consisting of a pleated filter media, a woven polymer mesh filter media, a non-woven polymer mesh filter media, sintered metal filter media, a sintered polymer filter media, an activated carbon filter media, and a particulate filter media.

### Claim 25 (depends on 1)

A system as recited in claim 1, wherein the interface plate includes means for communicating information to a controller in the gas delivery device identifying which of the five lumens is attached to the interface plate.