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

Patent metadata

Field	Value
Publication number	US-2025381350-A1
Application number	US-202519312403-A
Country	US
Kind code	A1
Filing date	Aug 28, 2025
Priority date	Sep 30, 2021
Publication date	Dec 18, 2025
Grant date	—

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:
an insufflator; first and second insufflation trocars in an abdomen of a patient; and a gas flow distribution device comprising:
a housing defining an insufflation chamber;
an inlet port on the housing connected to the insufflator to provide insufflation gas from the insufflator to the insufflation chamber; and
first and second outlet ports on the housing, the first outlet port connected to the first insufflation trocar and the second outlet port connected to the second insufflation trocar, to concurrently distribute the insufflation gas from the insufflation chamber to each of the first and second insufflation trocars.

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 the first and second outlet ports each comprise a barb configured to directly engage an inner surface of tubing connected thereto.

5 . The insufflation system of claim 4 wherein the first and second outlet ports each comprise a luer lock connection configured to receive a luer lock fitting.

6 . The insufflation system of claim 4 further comprising first and second outlet tubes each comprising a first end and a second opposite end, the first end of the first outlet tube configured to be connected to the first outlet port, the second end of the first outlet tube configured to be connected to the first insufflation trocar, the first end of the second outlet tube configured to be connected to the second outlet port, the second end of the second outlet tube configured to be connected to the second insufflation 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 a 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 first and second 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 . An exhaust and/or smoke evacuation system comprising:
an exhaust device; first and second exhaust trocars in an abdomen of a patient; and a gas flow distribution device comprising:
a housing defining an exhaust chamber;
first and second inlet ports on the housing, the first inlet port connected to the first exhaust trocar and the second inlet port connected to the second exhaust trocar, to concurrently provide suction and/or evacuate smoke from the first and second exhaust trocars to the exhaust chamber; and
an outlet port on the housing connected to the exhaust device to provide exhaust from the exhaust chamber to the exhaust device.

11 . The exhaust and/or smoke evacuation system of claim 10 further comprising first and second inlet tubes each comprising a first end and a second opposite end, the first end of the first inlet tube configured to be connected to the first inlet port, the second end of the first inlet tube configured to be connected to the first exhaust trocar, the first end of the second inlet tube configured to be connected to the second inlet port, the second end of the second inlet tube configured to be connected to the second exhaust trocar.

12 . The exhaust and/or smoke evacuation system of claim 11 wherein the first end of the first and second inlet tubes is pressure fit to the first and second inlet ports, respectively, such that an inner diameter of the first and second inlet tubes directly engages a barb on an outer surface of the first and second inlet ports, respectively.

13 . The exhaust and/or smoke evacuation system of claim 12 further comprising a luer lock fitting at the second end of each of the first and second inlet tubes.

14 . The exhaust and/or smoke evacuation system of claim 10 further comprising a filter in the exhaust chamber.

15 . An exhaust and insufflation system comprising:
an insufflator; first and second insufflation trocars in an abdomen of a patient; an exhaust device; first and second exhaust trocars in the abdomen of the patient; and a gas flow distribution device comprising:
an insufflation chamber;
an insufflation inlet port on the insufflation chamber connected to the insufflator to provide insufflation gas from the insufflator to the insufflation chamber;
first and second insufflation outlet ports on the insufflation chamber, the first insufflation outlet port connected to the first insufflation trocar and the second insufflation outlet port connected to the second insufflation trocar, to concurrently distribute the insufflation gas from the insufflation chamber to each of the first and second insufflation trocars;
an exhaust chamber;
first and second exhaust inlet ports on the exhaust chamber, the first exhaust inlet port connected to the first exhaust trocar and the second exhaust inlet port connected to the second exhaust trocar, to concurrently provide suction and/or evacuate smoke from the first and second exhaust trocars to the exhaust chamber; and
an exhaust outlet port on the exhaust chamber connected to the exhaust device to provide exhaust from the exhaust chamber to the exhaust device.

16 . The exhaust and insufflation system of claim 15 further comprising a housing that defines each of the insufflation chamber and the exhaust chamber.

17 . The exhaust and insufflation system of claim 16 wherein the housing includes a partition that isolates the insufflation chamber and the exhaust chamber from one another.

18 . The exhaust and insufflation system of claim 15 further comprising a first housing that defines the insufflation chamber and a second housing that defines the exhaust chamber.

19 . The exhaust and insufflation system of claim 15 further comprising a suction system comprising a suction line configured to connect at least one of the first and second insufflation trocars or at least one of the first and second exhaust trocars and 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.

Assignees

• Visco Zachary
• Univ Duke

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