IP Library › Granted Patent US 12,553,628
Granted Patent B2
US 12,553,628 · App. 18/184,758 · Granted Feb 17, 2026

Surgical smoke treatment system for polar and nonpolar gases

Inventors: David Louis Kirschman (Dayton, OH); Gregory Carroll (Springboro, OH)
Assignee: Aerobiotix USA LLC
F24F8/95B01D53/04F24F8/158F24F8/167
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,553,628
App. No.
18/184,758
Granted
Feb 17, 2026
Kind
B2
Abstract

A surgical treatment system for contaminated air streams having particulate contamination, polar contamination and/or nonpolar contamination in the gas or vapor stream. A surgical smoke plume treatment system and method provide or define a multi-stage treatment process that mechanically filters the air stream, followed by nonpolar decontamination and then polar decontamination or treatment. The system may be used stand alone or incorporated and used with other surgical instruments or incorporated into an air handler adapted to decontaminate an air stream. A desiccant may optionally be used to remove water from the air stream.

Claims (147)

1 . A surgical smoke filtration system for receiving and treating vapor comprising:

a filter;

an activated carbon surface for adsorption of primarily nonpolar gases; and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said filter, said activated carbon surface, and said metallic gas catalyst define an integrated filtration module; and

said integrated filtration module further comprises a connector or connection means to attach said filtration system and an output or output means to allow for expulsion of treated surgical smoke;

wherein said surgical smoke filtration system comprises a cauterizing system for cauterizing a surgical site associate with a patient, said surgical smoke filtration system comprising:

a tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said passageway in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said surgical smoke filtration system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris; and

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein an elongated portion of said extension comprises a first surface and a generally opposing second surface, said first surface defining a working surface having a generally curved or arcuate portion.

2 . The surgical smoke filtration system as recited in claim 1 , wherein said activated carbon is substantially nonpolar and a preferential adsorber of nonpolar gases;

said activated carbon being activated by pyrolization, carbonization, or chemical activation, such that said activated carbon maintains nonpolar properties.

3 . The surgical smoke filtration system as recited in claim 1 wherein said catalyst comprises a metallic substrate for catalyzing oxidation reactions of polar gases, including oxidation of aldehydes into other molecules, including carbon dioxide.

4 . The surgical smoke filtration system as recited in claim 1 wherein an evacuated surgical smoke stream traverses said activated carbon surface and thence traverses said metallic gas catalyst in a substantially serial manner.

5 . The surgical smoke filtration system as recited in claim 1 wherein said activated carbon surface comprises a form of powdered, granular, fibrous, extruded, impregnated, coated, or woven carbon.

6 . The surgical smoke filtration system as recited in claim 1 wherein said activated carbon surface comprises a drying component, including at least one desiccant comprising at least one of a silica gel, calcium carbonate, calcium sulfate, calcium chloride, magnesium sulfate, coordination polymer, Zeolite, or molecular sieve to reduce polar competition from water vapor or humidity;

wherein a condensation means including cooling coil, dehumidifier or thermoelectric plate can be utilized in addition to or in lieu of desiccant.

7 . The surgical smoke filtration system as recited in claim 1 wherein said filter comprises an outer housing with at least one connection to a surgical smoke collection means;

said surgical smoke collection means comprising at least one of a tubing system, vacuum system, electrocautery hand piece, funnel, gas separator, surgical port, surgical trocar, or surgical instrument.

8 . The surgical smoke filtration system as recited in claim 1 wherein said metallic gas catalyst comprises a catalyst surface containing at least one of titanium, silver, palladium, platinum, manganese, iridium, rhodium, copper, zirconium, or other metallic element capable of catalyzing oxidation or mixed oxidation-reduction reactions of organic molecules.

9 . The surgical smoke filtration system as recited in claim 8 wherein said metallic gas catalyst and/or a catalyst substrate comprises a form of one or more honeycomb, foam, extrusion, plate, coating, granule, cylinder, sphere, bead or mesh, to allow for adequate contact area with gas reactant.

10 . The surgical smoke filtration system as recited in claim 1 comprising an internal activation means for activating said gas catalyst;

said internal activation means comprising one or more of heating means, photon-generating means, electron-generating means, or electromagnetic radiation means.

11 . The surgical smoke filtration system as recited in claim 9 wherein said activation means is located within a substantially enclosed housing of a filter cartridge;

said filter cartridge further comprising a transit means for connecting said cartridge to an external power source for powering of said activation means.

12 . The surgical smoke filtration system as recited in claim 1 wherein said tubular body is conductive and creates a conductive path for current to flow from a power source to said extension.

13 . The surgical smoke filtration system as recited in claim 1 wherein said extension is integral with said tubular body and both are conductive.

14 . The surgical smoke filtration system as recited in claim 1 wherein said tubular body is defined by a wall having at least one predetermined dimension, said wall defining said passageway and said extension.

15 . The surgical smoke filtration system as recited in claim 14 wherein said extension comprising a cross-sectional dimension that is smaller than said at least one predetermined dimension.

16 . The surgical smoke filtration system as recited in claim 1 wherein said second surface has a radius of curvature substantially approximating a radius of curvature of said first surface.

17 . The surgical smoke filtration system as recited in claim 1 wherein said extension is detachably secured to said tubular body with a predetermined connection, said tubular body and said extension both being conductive to permit said extension to cauterize at said surgical site.

18 . The surgical smoke filtration system as recited in claim 17 wherein said predetermined connection is a least one of a threaded, press-fit, bayonet, or socket connection.

19 . The surgical smoke filtration system as recited in claim 1 wherein said passageway is substantially centrally located in said tubular body to define a substantially linear or non-serpentine conduit for evacuating said vapor.

20 . A surgical smoke filtration system for receiving and treating vapor, comprising:

a filter;

an activated carbon surface for adsorption of primarily nonpolar gases, and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said filter, said activated carbon surface, and said metallic gas catalyst define an integrated filtration module; and

said integrated filtration module further comprises a connector or connection means to attach said filtration system and an output or output means to allow for expulsion of treated surgical smoke;

wherein said surgical smoke filtration system comprises a cauterizing system for cauterizing a surgical site associated a patient, said surgical smoke filtration system comprising:

a tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said passageway in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said surgical smoke filtration system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris; and

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein said tubular body comprises an interior wall that defines said passageway, at least a portion of said interior wall having a catalyst coating.

21 . An electrocautery and filtration system for cauterizing a surgical site associated with a patient and for treating vapor resulting therefrom electrocautery and filtration system comprising:

an electrocautery instrument that generates the vapor during a surgical procedure; and

a surgical smoke treatment system for receiving and treating said vapor, comprising:

a filter;

an activated carbon surface for adsorption of primarily nonpolar gases; and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said filter, said activated carbon surface, and said metallic gas catalyst define an integrated filtration module;

said integrated filtration module further comprises a connector or connection means to attach said electrocautery instrument and an output or output means to allow for expulsion of treated surgical smoke;

wherein a passageway in said electrocautery instrument is defined by a tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein said cautery instrument comprises a cauterizing system for cauterizing a surgical site associated with a patient, said surgical smoke treatment system comprising:

said tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said surgical smoke treatment system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris, and

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein an elongated portion of said extension comprises a first surface and a generally opposing second surface, said first surface defining a working surface having a generally curved or arcuate portion.

22 . The electrocautery and filtration system as recited in claim 21 wherein said activated carbon is substantially nonpolar and a preferential adsorber of nonpolar gases;

said activated carbon being activated by pyrolization, carbonization, or chemical activation, such that said activated carbon maintains nonpolar properties.

23 . The electrocautery and filtration system as recited in claim 21 wherein said catalyst comprises a metallic substrate for catalyzing oxidation reactions of polar gases, including oxidation of aldehydes into other molecules, including carbon dioxide.

24 . The electrocautery and filtration system as recited in claim 21 wherein an evacuated surgical smoke stream traverses said activated carbon surface and thence traverses said metallic gas catalyst in a substantially serial manner.

25 . The electrocautery and filtration system as recited in claim 21 wherein said activated carbon surface comprises a form of powdered, granular, fibrous, extruded, impregnated, coated, or woven carbon.

26 . The electrocautery and filtration system as recited in claim 25 wherein said activated carbon surface comprises a drying component, including at least one desiccant comprising at least one of a silica gel, calcium carbonate, calcium sulfate, calcium chloride, magnesium sulfate, coordination polymer, Zeolite, or molecular sieve to reduce polar competition from water vapor or humidity;

wherein a condensation means including cooling coil, dehumidifier or thermoelectric plate can be utilized in addition to or in lieu of desiccant.

27 . The electrocautery and filtration system as recited in claim 21 wherein said filter comprises an outer housing with at least one connection to a surgical smoke collection means;

said surgical smoke collection means comprising at least one of a tubing system, vacuum system, electrocautery hand piece, funnel, gas separator, surgical port, surgical trocar, or surgical instrument.

28 . The electrocautery and filtration system as recited in claim 21 wherein said metallic gas catalyst comprises a catalyst surface containing at least one of titanium, silver, palladium, platinum, manganese, iridium, rhodium, copper, zirconium, or other metallic element capable of catalyzing oxidation or mixed oxidation-reduction reactions of organic molecules.

29 . The electrocautery and filtration system as recited in claim 28 wherein said metallic gas catalyst and/or a catalyst substrate comprises a form of one or more honeycomb, foam, extrusion, plate, coating, granule, cylinder, sphere, bead or mesh to allow for adequate contact area with gas reactant.

30 . The electrocautery and filtration system as recited in claim 21 comprising an internal activation means for activating said gas catalyst;

said internal activation means comprising one or more of heating means, photon-generating means, electron-generating means, or electromagnetic radiation means.

31 . The electrocautery and filtration system activation means as recited in claim 29 wherein said activation means is located within a substantially enclosed housing of a filter cartridge;

said filter cartridge further comprising a transit means for connecting said cartridge to an external power source for powering of said activation means.

32 . The electrocautery and filtration system as recited in claim 21 wherein said tubular body is conductive and creates a conductive path for current to flow from a power source to said extension.

33 . The electrocautery and filtration system as recited in claim 21 wherein said extension is integral with said tubular body and both are conductive.

34 . The electrocautery and filtration system as recited in claim 21 wherein said tubular body is defined by a wall having at least one predetermined dimension, said wall defining said passageway and said extension.

35 . The electrocautery and filtration system as recited in claim 34 wherein said extension comprising a cross-sectional dimension that is smaller than said at least one predetermined dimension.

36 . The electrocautery and filtration system as recited in claim 21 wherein said working second surface has a radius of curvature substantially approximating a radius of curvature of said first surface.

37 . The electrocautery and filtration system as recited in claim 21 wherein said extension is detachably secured to said tubular body with a predetermined connection, said tubular body and said extension both being conductive to permit said extension to cauterize at said surgical site.

38 . The electrocautery and filtration system as recited in claim 37 wherein said predetermined connection is a least one of a threaded, press-fit, bayonet, or socket connection.

39 . The electrocautery and filtration system as recited in claim 21 wherein said passageway is substantially centrally located in said tubular body to define a substantially linear or non-serpentine conduit for evacuating said vapor.

40 . An electrocautery and filtration system for cauterizing a surgical site associated with a patient and for treating vapor resulting therefrom, said electrocautery and filtra n system comprising:

an electrocautery instrument that generates the vapor during a surgical procedure; and

a surgical smoke treatment system for receiving and treating said vapor, comprising:

a filter;

an activated carbon surface for adsorption of primarily nonpolar gases; and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said filter, said activated carbon surface, and said metallic gas catalyst define an integrated filtration module;

said integrated filtration module further comprises a connector or connection means to attach said electrocautery instrument and an output or output means to allow for expulsion of treated surgical smoke;

wherein a passageway in said electrocautery instrument is defined by a tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein said cautery instrument comprises a cauterizing system for cauterizing a surgical site associated with a patient, said surgical smoke treatment system comprising:

said tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said passageway in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said surgical smoke treatment system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris; and

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body;

wherein said tubular body comprises an interior wall that defines said passageway, at least a portion of said interior wall having a catalyst coating.

41 . An electrocautery system for cauterizing a surgical site associated with a patient, said electrocautery system comprising:

a tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said passageway in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said electrocautery system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris;

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body; and

a surgical smoke treatment system for receiving evacuated vapor and for treating it, said surgical smoke treatment system comprising:

a mechanical filter;

an activated carbon surface for adsorption of primarily nonpolar gases; and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said mechanical filter, activated carbon surface, and metallic gas catalyst define an integrated filtration module;

said integrated filtration module further comprises a connector or connection means to attach to said electrocautery system and an output or output means to allow for expulsion of treated surgical vapor;

wherein said extension is integral with said tubular body and both are conductive;

wherein said tubular body is defined by a wall having at least one predetermined dimension, said wall defining said passageway and said extension;

wherein an elongated portion of said extension comprises a first surface and a generally opposing second surface, said first surface defining a working surface having a generally curved or arcuate portion.

42 . The electrocautery system as recited in claim 41 wherein said tubular body is conductive and creates a conductive path for current to flow from a power source to said extension.

43 . The electrocautery system as recited in claim 41 wherein said extension comprising a cross-sectional dimension that is smaller than said at least one predetermined dimension.

44 . The electrocautery system as recited in claim 41 wherein said second surface has a radius of curvature substantially approximating a radius of curvature of first surface.

45 . The electrocautery system as recited in claim 42 wherein said extension is detachably secured to said tubular body with a predetermined connection, said tubular body and said extension both being conductive to permit said extension to cauterize at said surgical site.

46 . The electrocautery system as recited in claim 45 wherein said predetermined connection is at least one of a threaded, press-fit, bayonet, or socket connection.

47 . The electrocautery system as recited in claim 41 wherein said passageway is substantially centrally located in said tubular body to define a substantially linear or non-serpentine conduit for evacuating said vapor.

48 . The electrocautery system as recited in claim 41 wherein said activated carbon surface is substantially nonpolar and a preferential adsorber of nonpolar gases;

said activated carbon surface being activated by pyrolization, carbonization, or chemical activation, such that said activated carbon surface maintains nonpolar properties.

49 . The electrocautery system as recited in claim 41 wherein said metallic gas catalyst comprises a metallic substrate for catalyzing oxidation reactions of polar gases, including oxidation of aldehydes into other molecules, including carbon dioxide.

50 . The electrocautery system as recited in claim 41 wherein an evacuated surgical smoke stream traverses said activated carbon surface and thence traverses said metallic gas catalyst in a substantially serial manner.

51 . The electrocautery system as recited in claim 41 wherein the activated carbon surface comprises a form of powdered, granular, fibrous, extruded, impregnated, coated, or woven carbon.

52 . The electrocautery system as recited in claim 51 wherein said activated carbon surface comprises a drying component, including at least one desiccant comprising at least one of a silica gel, calcium carbonate, calcium sulfate, calcium chloride, magnesium sulfate, coordination polymer, Zeolite, or molecular sieve to reduce polar competition from water vapor or humidity;

wherein a condensation means including cooling coil, dehumidifier or thermoelectric plate can be utilized in addition to or in lieu of desiccant.

53 . The electrocautery system as recited in claim 41 wherein said mechanical filter comprises an outer housing with at least one connection to a surgical smoke collection means;

said surgical smoke collection means comprising at least one of a tubing system, vacuum system, electrocautery hand piece, funnel, gas separator, surgical port, surgical trocar, or surgical instrument.

54 . The electrocautery system as recited in claim 41 wherein said metallic gas catalyst comprises a catalyst surface containing at least one of titanium, silver, palladium, platinum, manganese, iridium, rhodium, copper, zirconium, or other metallic element capable of catalyzing oxidation or mixed oxidation-reduction reactions of organic molecules.

55 . The electrocautery system as recited in claim 49 wherein said metallic gas catalyst and/or said metallic substrate comprises a form of one or more honeycomb, foam, extrusion, plate, coating, granule, cylinder, sphere, bead or mesh to allow for adequate contact area with gas reactant.

56 . The electrocautery system as recited in claim 41 comprising an internal activation means for activating said metallic gas catalyst;

said internal activation means comprising one or more of heating means, photon-generating means, electron-generating means, or electromagnetic radiation means.

57 . The electrocautery system as recited in claim 56 wherein said internal activation means is located within a substantially enclosed housing of a filter cartridge;

said filter cartridge further comprising a transit means for connecting said filter cartridge to an external power source for powering of said internal activation means.

58 . An electrocautery system for cauterizing a surgical site associated with a patient, said electrocautery system comprising:

a tubular body having a passageway for evacuating vapor from the surgical site;

said tubular body comprising an extension for cauterizing at the surgical site; said extension being conductive and adapted to be coupled to a power source for energizing said extension;

said tubular body having an inlet end having said extension and an outlet end coupled to a vacuum source adapted to create a predetermined pressure in said passageway in order to evacuate vapor from said surgical site through said tubular body prior to, during or after use of said electrocautery system at the surgical site, said vapor comprising at least one of smoke, cauterizing vapor, gas, liquid or debris;

wherein said passageway is defined by said tubular body and causes said vapor resulting from the cauterizing at the surgical site to be evacuated through said tubular body; and

a surgical smoke treatment system for receiving evacuated vapor and for treating it, said surgical smoke treatment system comprising:

a mechanical filter;

an activated carbon surface for adsorption of primarily nonpolar gases; and

a metallic gas catalyst for oxidation of primarily polar volatile gases;

wherein said mechanical filter, activated carbon surface, and metallic gas catalyst define an integrated filtration module;

said integrated filtration module further comprises a connector or connection means to attach to said electrocautery system and an output or output means to allow for expulsion of treated surgical vapor;

wherein said tubular body comprises an interior wall that defines said passageway, at least a portion of said interior wall having a catalyst coating.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 7, 2025
From: AEROBIOTIX, LLC
To: AEROBIOTIX USA LLC
Reel/Frame 073506/0778 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 18, 2023
From: KIRSCHMAN, DAVID LOUIS; CARROLL, GREGORY
To: AEROBIOTIX, LLC
Reel/Frame 063680/0373 →
Continuity (2)
Provisional Application 63320904 · Mar 17, 2022
Related Publication 20230296272A1 · Sep 21, 2023
References Cited (40)
US 3732669A · Chambers · 1973 [cited by applicant]
US 3804942A · Kato et al. · 1974 [cited by applicant]
US 3892549A · Lyshkow · 1975 [cited by applicant]
US 3944403A · Simpson et al. · 1976 [cited by applicant]
US 4064876A · Mulchi · 1977 [cited by applicant]
US 4121916A · Fricke · 1978 [cited by applicant]
US 4141703A · Mulchi · 1979 [cited by applicant]
US 4236902A · Fricke · 1980 [cited by applicant]
US 4534775A · Frazier · 1985 [cited by applicant]
US 4604110A · Frazier · 1986 [cited by applicant]
US 4619672A · Robertson · 1986 [cited by applicant]
US 4810269A · Stackhouse et al. · 1989 [cited by applicant]
US 4826513A · Stackhouse et al. · 1989 [cited by applicant]
US 4963134A · Backscheider et al. · 1990 [cited by applicant]
US 4986839A · Wertz et al. · 1991 [cited by applicant]
US 5047072A · Wertz et al. · 1991 [cited by applicant]
US 5108474A · Riedy et al. · 1992 [cited by applicant]
US 5288469A · Skalla · 1994 [cited by applicant]
US 5336218A · Linhares · 1994 [cited by applicant]
US 5423779A · Yeh · 1995 [cited by applicant]
US 5910291A · Skalla · 1999 [cited by examiner]
US 6544210B1 · Trudel et al. · 2003 [cited by applicant]
US 7819957B2 · Roberts et al. · 2010 [cited by applicant]
US 10335733B2 · Bocciardo et al. · 2019 [cited by applicant]
US 10874426B2 · Holsten et al. · 2020 [cited by applicant]
US 11105522B2 · Kleinberger et al. · 2021 [cited by applicant]
US 11234754B2 · Horner · 2022 [cited by examiner]
US 20050060974A1 · Palmerton · 2005 [cited by examiner]
US 20180228510A1 · Holsten et al. · 2018 [cited by applicant]
US 20190063763A1 · Kleinberger et al. · 2019 [cited by applicant]
US 20210100583A1 · Holsten et al. · 2021 [cited by applicant]
US 20210137583A1 · Haupt · 2021 [cited by examiner]
US 20210364171A1 · Kleinberger et al. · 2021 [cited by applicant]
US 20220080136A1 · Teh · 2022 [cited by examiner]
CN 205461795U · 2016 [cited by examiner]
CN 207786184U · 2018 [cited by examiner]
EP 3360494A1 · 2018 [cited by applicant]
EP 3505126A1 · 2019 [cited by applicant]
Machine-generated English translation of CN 205461795 U, published Aug. 17, 2016. [cited by examiner]
Machine-generated English translation of CN 207789184 U, published Aug. 31, 2018. [cited by examiner]