Air purifier for laparoscopic surgery

Patent metadata

Field	Value
Publication number	US-2019328983-A1
Application number	US-201916262022-A
Country	US
Kind code	A1
Filing date	Jan 30, 2019
Priority date	Apr 25, 2018
Publication date	Oct 31, 2019
Grant date	—

Abstract

A surgical device includes a housing and an elongate body extending distally from the housing. The housing defines a filter chamber and a pump chamber therein, the filter chamber in fluid communication with the pump chamber. A filter assembly is disposed within the filter chamber, and a pump is disposed within the pump chamber. The elongate body defines first and second lumens therethrough, and includes at least one first opening in fluid communication with the first lumen and at least one second opening in fluid communication with the second lumen. The first lumen is in fluid communication with the filter chamber of the housing and the second lumen is in fluid communication with the pump chamber of the housing thereby forming a closed filtration loop through the surgical device.

First claim

What is claimed is:

1 . A surgical device comprising:
a housing defining a filter chamber and a pump chamber therein, the filter chamber in fluid communication with the pump chamber; a filter assembly disposed within the filter chamber; a pump disposed within the pump chamber; and an elongate body extending distally from the housing, the elongate body defining first and second lumens therethrough, the elongate body including at least one first opening in fluid communication with the first lumen and at least one second opening in fluid communication with the second lumen, the first lumen in fluid communication with the filter chamber of the housing and the second lumen in fluid communication with the pump chamber of the housing thereby forming a closed filtration loop through the surgical device.

2 . The surgical device according to claim 1 , wherein the at least one first opening or the at least one second opening of the elongate body includes a tip opening defined in a distal end of the elongate body.

3 . The surgical device according to claim 1 , wherein the at least one first opening or the at least one second opening of the elongate body includes a side opening defined through a sidewall of the elongate body.

4 . The surgical device according to claim 1 , wherein the housing includes an outlet channel defined therein, the outlet channel fluidly coupling the pump chamber of the housing with the second lumen of the elongate body.

5 . The surgical device according to claim 4 , wherein the filter chamber is positioned in a distal portion of the housing adjacent a proximal portion of the elongate body and the pump chamber is positioned proximal of the filter chamber.

6 . The surgical device according to claim 5 , wherein the outlet channel extends from the pump chamber distally past the filter chamber and is connected to the proximal portion of the elongate body.

7 . The surgical device according to claim 1 , wherein the filter assembly includes a filter permeable to gas.

8 . The surgical device according to claim 7 , wherein the filter is positioned within the filter chamber along a plane orthogonal to a longitudinal axis of the housing.

9 . The surgical device according to claim 1 , wherein the filter assembly includes a plurality of filters.

10 . The surgical device according to claim 9 , wherein the plurality of filters includes at least one of a bacteria control filter, a virus control filter, or an odor control filter.

11 . The surgical device according to claim 1 , wherein the housing includes a port operably coupled to the pump, the port configured to releasably engage an energy transmission line for actuating the pump.

12 . The surgical device according to claim 1 , further comprising an energy transmission line operably coupled to the pump.

13 . The surgical device according to claim 1 , wherein the pump is an air pump.

14 . The surgical device according to claim 12 , wherein the pump is a mechanical air pump and the energy transmission line is tubing configured for coupling with a vacuum.

15 . The surgical device according to claim 1 , wherein the pump is a double diaphragm pump.

16 . The surgical device according to claim 1 , wherein the pump includes a first suction port in fluid communication with the filter chamber and a second suction port in fluid communication with an insufflation fluid, the pump including a control unit for selectively controlling the opening and closing of the first and second suction ports such that when the first suction port is open, the pump is configured to circulate air into the first lumen, through the filter chamber, and out the second lumen and, when the second suction port is open, the pump is configured to pressurize the insufflation fluid and discharge the insufflation fluid out through the second lumen.

17 . The surgical device according to claim 1 , wherein the housing further includes a second pump chamber defined therein, the second pump chamber including a second pump disposed therein, the second pump including a suction port for drawing ambient air into the second pump and a discharge port in fluid communication with the second lumen of the elongate body.

18 . A method of filtering air during a laparoscopic surgical procedure, comprising:
positioning an elongate body of a surgical device within a body cavity, the surgical device including:
a housing defining a filter chamber and a pump chamber therein, the filter chamber in fluid communication with the pump chamber;
a filter assembly disposed within the filter chamber;
a pump disposed within the pump chamber; and
the elongate body extending distally from the housing, the elongate body defining first and second lumens therethrough, the elongate body including at least one first opening in fluid communication with the first lumen and at least one second opening in fluid communication with the second lumen, the first lumen in fluid communication with the filter chamber of the housing and the second lumen in fluid communication with the pump chamber of the housing; and
activating an energy source coupled to the pump of the surgical device to actuate the pump, wherein the pump draws air from the body cavity into the surgical device through the at least one first opening of the elongate body, cleans the air in the filter chamber, and returns the air back into the body cavity through the at least one second opening of the elongate body.

Assignees

• Covidien Lp

Inventors

• Malkowski Jaroslaw T

Classifications

• B01D46/0027

  with additional separating or treating functions · CPC title

• A61B2018/00982

  combined with or comprising means for visual or photographic inspections inside the body, e.g. endoscopes · CPC title

• B01D2259/4533

  for medical purposes · CPC title

• B01D46/0008

  Two or more filter elements not fluidly connected positioned in the same housing · CPC title

• A61B2218/008

  for smoke evacuation · CPC title