Multi-port, high-flow pneumoperitoneum and smoke evacuation distribution devices, systems, and methods

Patent metadata

Field	Value
Publication number	US-12420036-B2
Application number	US-202218292474-A
Country	US
Kind code	B2
Filing date	Sep 30, 2022
Priority date	Sep 30, 2021
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

An insufflation system for creating a high-flow, constant pressure pneumoperitoneum, the system including: a gas flow distribution device including: a housing defining an insufflation chamber; an inlet port on the housing and configured to be connected to an insufflator to provide insufflation gas from the insufflator to the insufflation chamber; and a plurality of outlet ports on the housing configured to be connected to a plurality of trocars, each outlet port configured to be connected to a dedicated one of the plurality of trocars, to concurrently distribute the insufflation gas from the insufflation chamber to each of the plurality of trocars.

First claim

We claim:

1. An insufflation system for creating a high-flow, constant or variable pressure pneumoperitoneum, the system comprising:
a gas flow distribution device comprising:
a single-piece housing defining an insufflation chamber;
a single inlet port on the housing in direct fluid communication with the insufflation chamber without any intervening components therebetween, the inlet port configured to be connected to an insufflator to provide pressurized insufflation gas from the insufflator to the insufflation chamber, the inlet port extending outwardly away from the housing; and
a plurality of outlet ports on the housing in direct fluid communication with the insufflation chamber without any intervening components therebetween, the plurality of outlet ports configured to be connected to a plurality of insufflation trocars inserted in a single cavity of a patient, each outlet port configured to be connected to a dedicated one of the plurality of insufflation trocars, to concurrently distribute the pressurized insufflation gas from the insufflation chamber to each of the plurality of insufflation trocars and into the single cavity, each outlet port extending outwardly away from the housing,
wherein, with the exception of the inlet port and the plurality of outlet ports, the housing is free of any openings in fluid communication with the insufflation chamber, and
wherein the housing further defines an exhaust chamber, the insufflation system further comprising:
at least one exhaust inlet port on the housing and configured to be connected to an exhaust trocar to provide suction and/or evacuate smoke from the exhaust trocar to the exhaust chamber; and
an exhaust outlet port on the housing and configured to be connected to an exhaust device to provide exhaust from the exhaust chamber to the exhaust device.

2. The insufflation system of claim 1 wherein the inlet port comprises a barb configured to directly engage an inner surface of tubing connected thereto.

3. The insufflation system of claim 2 wherein the inlet port comprises a luer lock connection configured to receive a luer lock fitting.

4. The insufflation system of claim 1 wherein each outlet port comprises a barb configured to directly engage an inner surface of tubing connected thereto.

5. The insufflation system of claim 4 wherein each outlet port comprises a luer lock connection configured to receive a luer lock fitting.

6. The insufflation system of claim 4 further comprising a plurality of outlet tubes, each outlet tube comprising a first end and a second opposite end, the first end of each outlet tube configured to be connected to a corresponding one of the outlet ports, the second end of each outlet tube configured to be connected to the dedicated trocar.

7. The insufflation system of claim 6 wherein the first end of each outlet tube is pressure fit to a corresponding one of the outlet ports such that an inner surface of the outlet tube directly engages the barb on an outer surface of the outlet port.

8. The insufflation system of claim 6 further comprising a luer lock fitting at the second end of each of the outlet tubes.

9. The insufflation system of claim 1 further comprising a reservoir in a top of the housing that is sized and configured to receive and hold a sponge comprising surfactant to reduce fogging on a laparoscopic lens.

10. The insufflation system of claim 9 , wherein the inlet port and the plurality of outlet ports are on the top of the housing and surround the reservoir.

11. The insufflation system of claim 1 wherein the housing includes a partition that isolates the insufflation chamber and the exhaust chamber from one another.

12. The insufflation system of claim 1 further comprising a partition that isolates the insufflation chamber and the exhaust chamber from one another, wherein the partition comprises an insert configured to be received through at least one slot in a side wall of the housing.

13. The insufflation system of claim 12 wherein the at least one slot comprises first and second slots, the device further comprises a flex port between the first and second slots, and the insert is configured to selectively be received (i) through the first slot such that the exhaust outlet port is in fluid communication with the exhaust chamber and the flex port is in fluid communication with the insufflation chamber and (ii) through the second slot such that the exhaust outlet port and the flex port are in fluid communication with the exhaust chamber.

14. The insufflation system of claim 13 wherein the insert is a first insert, the insufflation system further comprising a second insert configured to be received in and plug the first or second slot that is not holding the first insert.

15. The insufflation system of claim 1 further comprising at least one inlet tube each comprising a first end and a second opposite end, the first end of each inlet tube configured to be connected to a corresponding one of the at least one exhaust inlet port, the second end of each inlet tube configured to be connected to a dedicated exhaust trocar.

16. The insufflation system of claim 15 wherein the first end of each inlet tube is pressure fit to a corresponding one of the at least one exhaust inlet port such that an inner diameter of the inlet tube directly engages a barb on an outer surface of the exhaust inlet port.

17. The insufflation system of claim 16 further comprising a luer lock fitting at the second end of each inlet tube.

18. The insufflation system of claim 1 further comprising a suction system comprising a suction line configured to connect (i) at least one of the plurality of insufflation trocars or the exhaust trocar to (ii) the exhaust device or a separate suction device, the system further comprising at least one valve in the suction line configured to close a smoke evacuation line comprising the exhaust outlet port when the at least one valve is open to the exhaust device or the separate suction device, and to open the smoke evacuation line when the at least one valve is closed to the exhaust device or the separate suction device.

19. The insufflation system of claim 1 further comprising
the plurality of insufflation trocars configured to be inserted in a single cavity of a patient.

20. The insufflation system of claim 1 wherein the inlet port is integrally formed with the housing.

21. The insufflation system of claim 1 wherein each outlet port is integrally formed with the housing.

22. A method for creating a high-flow, constant or variable pressure pneumoperitoneum, the method comprising:
inducing a pneumoperitoneum in a patient comprising:
providing the gas flow distribution device of claim 1 ;
flowing gas from the insufflator through the single inlet port and into the insufflation chamber; and
flowing the gas from the insufflation chamber concurrently through each of the plurality of outlet ports to the plurality of trocars in the single cavity of the patient, wherein each of the plurality of outlet ports is fluidly connected to a dedicated one of the plurality of trocars.

23. The method of claim 22 further comprising, before inducing the pneumoperitoneum in the patient, for each of the plurality of outlet ports, connecting a first end of an outlet tube to an outlet port and connecting a second end of the outlet tube to the dedicated one of the plurality of trocars.

24. The method of claim 23 wherein connecting the second end of th

Assignees

• Univ Duke
• Visco Zachary

Inventors

• Visco Anthony
• Visco Zachary

Classifications

• A61M2210/1017

  Peritoneal cavity · CPC title

• A61M2205/7536

  allowing gas passage, but preventing liquid passage, e.g. liquophobic, hydrophobic, water-repellent membranes · CPC title

• A61M2205/125

  with incorporated filters · CPC title

• A61M2039/226

  Spindles or actuating means · CPC title

• A61M39/12

  for joining a flexible tube to a rigid attachment · CPC title