IP Library › Granted Patent US 12,721,511
Granted Patent B2
US 12,721,511 · App. 18/929,301 · Granted Sep 1, 2026

Intraoperative endoscope cleaning system

Inventors: Rajitha Aluru (Houston, TX); William Cohn (Bellaire, TX); Jorge Salazar (Houston, TX); Scott Sloss (Houston, TX); Abdul Umaru (Houston, TX)
Assignee: Bayou Surgical, Inc.
A61B1/126A61B17/34A61B17/3417A61L2/16A61B2562/0257A61L2103/15
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 12,721,511
App. No.
18/929,301
Granted
Sep 1, 2026
Kind
B2
Abstract

The disclosure is directed to methods and systems for cleaning scopes using a camera port (e.g. trocar) which has been modified to include a cleaning system. A trocar is a device designed to allow surgical instruments and tools to be quickly and easily inserted into a body cavity without contacting the surrounding tissue.

Claims (34)

1 . An apparatus, comprising:

a main body defining a lumen configured to receive an endoscope, the main body having a shaped end configured to be disposed in a body lumen, the shaped end including a first edge and a second edge opposite the first edge, the first edge extending further distally than the second edge, the shaped end configured to allow the endoscope to extend distal to the first and second edges and into the body lumen;

an inlet port disposed on a proximal portion of the main body and configured to receive a wash solution and a gas; and

a cleaning orifice in fluid communication with the inlet port, the cleaning orifice being disposed proximal of the first edge at a position distal to the second edge, the cleaning orifice being angled relative to a longitudinal axis of the main body and being configured to deliver the wash solution and the gas into the lumen as an atomized spray to clean a distal end of the endoscope.

2 . The apparatus of claim 1 , wherein the cleaning orifice is angled proximally such that an output angle of the wash solution and the gas is greater than 90 degrees relative to the longitudinal axis of the main body.

3 . The apparatus of claim 1 , wherein the cleaning orifice is configured to deliver the wash solution and the gas in a direction towards the distal end of the endoscope.

4 . The apparatus of claim 1 , wherein the cleaning orifice is further configured to deliver additional gas into the lumen after delivering the wash solution to at least partially dry a surface of the endoscope.

5 . The apparatus of claim 1 , wherein the main body further includes a fluid channel configured to fluidically couple the inlet port to the cleaning orifice, the fluid channel extending within a wall of the main body from the proximal portion of the main body to the first edge.

6 . The apparatus of claim 5 , wherein the fluid channel has smooth edges without stepped or hard edges to avoid trapping or retaining moisture as the wash solution and the gas are delivered through the fluid channel.

7 . The apparatus of claim 1 , further comprising a control unit operatively coupled to valves that are configured to be coupled to a gas supply and a wash solution reservoir,

the control unit being configured to actuate the valves to deliver the wash solution and the gas.

8 . The apparatus of claim 7 , wherein the control unit is configured to actuate the valves in response to a signal received at the control unit.

9 . The apparatus of claim 1 , further comprising markings disposed on the proximal portion of the main body, the markings configured to provide a visual cue to assist a user in positioning the endoscope for cleaning.

10 . An apparatus, comprising:

a main body having a wall defining a lumen configured to receive an endoscope, the main body having a distal end configured to allow the endoscope to extend distally therethrough and into a body lumen;

an inlet port disposed on a proximal portion of the main body and configured to receive a wash solution and a gas;

a cleaning orifice disposed on the wall near the distal end and facing inward toward the lumen, the cleaning orifice configured to deliver the wash solution and the gas into the lumen as an atomized spray to clean a distal end of the endoscope; and

a fluid channel disposed in the wall of the main body, the fluid channel configured to fluidically couple the inlet port to the cleaning orifice, the fluid channel having rounded edges without steps or corners such that the fluid channel is configured to reduce retention of fluid within the fluid channel while the wash solution and the gas are delivered to the cleaning orifice.

11 . The apparatus of claim 10 , wherein the fluid channel has a first rounded edge positioned proximate to the inlet port and a second rounded edge positioned proximate to the cleaning orifice.

12 . The apparatus of claim 11 , wherein the first rounded edge curves in a first direction and the second rounded edge curves in a second direction different from the first direction.

13 . The apparatus of claim 10 , wherein the rounded edges are configured to change a direction of a flow of the wash solution and the gas being delivered therethrough.

14 . The apparatus of claim 10 , wherein the fluid channel has an ovular cross-sectional shape.

15 . The apparatus of claim 10 , wherein the main body has a shaped end including a first edge and a second edge opposite the first edge, the first edge extending further distally than the second edge,

the fluid channel and the cleaning orifice being disposed in the wall of the main body on a side including the first edge.

16 . The apparatus of claim 10 , further comprising markings disposed on the proximal portion of the main body, the markings configured to provide a visual cue to assist a user in positioning the endoscope for cleaning.

17 . A method, comprising:

receiving a wash solution and a pressurized gas at an inlet port of an endoscope cleaning device, the endoscope cleaning device having a main body that defines a lumen configured to receive an endoscope, the inlet port being in fluid communication with a cleaning orifice disposed adjacent to a distal end of the main body;

in response to a distal end of the endoscope being retracted from a position disposed distally of the distal end of the main body to a position proximal of the distal end of the main body and inside of the lumen, delivering, via the cleaning orifice, the wash solution propelled by the pressurized gas as a spray directed toward the distal end of the endoscope to clean the distal end of the endoscope received within the lumen; and

delivering, after delivering the wash solution, additional pressurized gas into the lumen to dry the distal end of the endoscope.

18 . The method of claim 17 , further comprising:

receiving a signal at a control unit operatively coupled to valves that are coupled to a gas supply and a wash solution reservoir; and

actuating, with the control unit, the valves to deliver the wash solution and the pressurized gas into the inlet port.

19 . The method of claim 18 , wherein the control unit is further configured to generate visual or audible feedback to assist a user in positioning the endoscope for cleaning.

20 . The method of claim 17 , further comprising loading, after delivering the additional pressurized gas, an amount of the wash solution into a fluid channel coupled to the cleaning orifice to prime the endoscope cleaning device for a subsequent cleaning operation.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2026
From: ETHICON, INC.
To: BAYOU SURGICAL, INC.
Reel/Frame 075108/0369 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2026
From: ETHICON, INC.
To: BAYOU SURGICAL, INC.
Reel/Frame 074033/0281 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 10, 2026
From: ALURU, RAJITHA; COHN, WILLIAM; SALAZAR, JORGE; SLOSS, SCOTT; UMARU, ABDUL
To: ETHICON, INC.
Reel/Frame 074033/0265 →
Continuity (4)
Continuation 18171172 · Feb 17, 2023
Continuation 16690979 · Nov 21, 2019
Provisional Application 62930983 · Nov 5, 2019
Related Publication 20250261840A1 · Aug 21, 2025
References Cited (138)
US 2264746A · Ellwood · 1941 [cited by applicant]
US 4635949A · Lucas et al. · 1987 [cited by applicant]
US 4800869A · Nakajima · 1989 [cited by applicant]
US 4852551A · Opie et al. · 1989 [cited by applicant]
US 5274874A · Cercone et al. · 1994 [cited by applicant]
US 5386817A · Jones · 1995 [cited by applicant]
US 5429596A · Arias et al. · 1995 [cited by applicant]
US 5476447A · Noda et al. · 1995 [cited by applicant]
US 5573494A · Yabe et al. · 1996 [cited by applicant]
US 5575756A · Karasawa et al. · 1996 [cited by applicant]
US 5697888A · Kobayashi et al. · 1997 [cited by applicant]
US 6126592A · Proch · 2000 [cited by examiner]
US 6126593A · Honda et al. · 2000 [cited by applicant]
US 7771384B2 · Ravo · 2010 [cited by applicant]
US 8057443B2 · McNeil · 2011 [cited by applicant]
US 8672890B2 · Franer et al. · 2014 [cited by applicant]
US 8690764B2 · Clark et al. · 2014 [cited by applicant]
US 8690831B2 · Duke · 2014 [cited by applicant]
US 8915842B2 · Weisenburgh, II et al. · 2014 [cited by applicant]
US 9078694B2 · Hartoumbekis et al. · 2015 [cited by applicant]
US 9211059B2 · Drach et al. · 2015 [cited by applicant]
US 10616491B2 · Haggerty et al. · 2020 [cited by applicant]
US 11583176B2 · Aluru · 2023 [cited by examiner]
US 11751759B2 · Burt et al. · 2023 [cited by applicant]
US 11805968B2 · Aluru et al. · 2023 [cited by applicant]
US 12150625B2 · Aluru · 2024 [cited by examiner]
US 20050077689A1 · Hueil · 2005 [cited by applicant]
US 20060161045A1 · Merril et al. · 2006 [cited by applicant]
US 20060293559A1 · Grice, III et al. · 2006 [cited by applicant]
US 20070282253A1 · Sasaki · 2007 [cited by applicant]
US 20080188715A1 · Fujimoto · 2008 [cited by applicant]
US 20080255424A1 · Durgin et al. · 2008 [cited by applicant]
US 20090253966A1 · Ichimura · 2009 [cited by applicant]
US 20090270818A1 · Duke · 2009 [cited by applicant]
US 20090312783A1 · Whayne · 2009 [cited by examiner]
US 20110152776A1 · Hartoumbekis et al. · 2011 [cited by applicant]
US 20110230716A1 · Fujimoto · 2011 [cited by applicant]
US 20120022331A1 · Poll et al. · 2012 [cited by applicant]
US 20130053643A1 · Yoshida · 2013 [cited by examiner]
US 20140188038A1 · Stearns et al. · 2014 [cited by applicant]
US 20140275787A1 · Miyamoto et al. · 2014 [cited by applicant]
US 20140371763A1 · Poll et al. · 2014 [cited by applicant]
US 20150190041A1 · Suehara et al. · 2015 [cited by applicant]
US 20170078583A1 · Haggerty · 2017 [cited by examiner]
US 20170182520A1 · Yamaya · 2017 [cited by applicant]
US 20180000324A1 · Poll et al. · 2018 [cited by applicant]
US 20180078120A1 · Poll et al. · 2018 [cited by applicant]
US 20190125176A1 · Burt · 2019 [cited by examiner]
US 20190150722A1 · Yamaya · 2019 [cited by applicant]
US 20200163541A1 · Holsten · 2020 [cited by applicant]
US 20200375444A1 · Coffeen et al. · 2020 [cited by applicant]
US 20210127963A1 · Aluru et al. · 2021 [cited by applicant]
US 20210127964A1 · Aluru et al. · 2021 [cited by applicant]
US 20210153975A1 · Polonsky et al. · 2021 [cited by applicant]
US 20210386507A1 · Reid et al. · 2021 [cited by applicant]
US 20220192480A1 · Burt et al. · 2022 [cited by applicant]
US 20230414085A1 · Aluru et al. · 2023 [cited by applicant]
US 20240172933A1 · Burt et al. · 2024 [cited by applicant]
US 20240239018A1 · Ohara et al. · 2024 [cited by applicant]
US 20240293018A1 · Aluru et al. · 2024 [cited by applicant]
US 20250000337A1 · Gowda et al. · 2025 [cited by applicant]
US 20250000610A1 · Houssiere et al. · 2025 [cited by applicant]
US 20250115604A1 · Quattropani et al. · 2025 [cited by applicant]
CA 2842217A1 · 2008 [cited by applicant]
CN 1905832A · 2007 [cited by applicant]
CN 101170941A · 2008 [cited by applicant]
CN 101296648A · 2008 [cited by applicant]
CN 101627894A · 2010 [cited by applicant]
CN 101668474A · 2010 [cited by applicant]
CN 202446249U · 2012 [cited by applicant]
CN 103957769A · 2014 [cited by applicant]
CN 104379045A · 2015 [cited by applicant]
CN 104720733A · 2015 [cited by applicant]
CN 204636289U · 2015 [cited by applicant]
CN 105310636A · 2016 [cited by applicant]
CN 113208549A · 2021 [cited by applicant]
CN 113925440A · 2022 [cited by applicant]
EP 2111808A2 · 2009 [cited by applicant]
EP 2886037A1 · 2015 [cited by applicant]
JP H07289501A · 1995 [cited by applicant]
JP 2009261948A · 2009 [cited by applicant]
JP 2013048821A · 2013 [cited by applicant]
JP 2016517299A · 2016 [cited by applicant]
WO WO02100455A2 · 2002 [cited by applicant]
WO WO2006039646A2 · 2006 [cited by applicant]
WO WO2010046891A2 · 2010 [cited by applicant]
WO WO2012066992A1 · 2012 [cited by applicant]
WO WO2013012790A2 · 2013 [cited by applicant]
WO WO2013183014A1 · 2013 [cited by applicant]
WO WO2014050571A1 · 2014 [cited by applicant]
WO WO2014149472A1 · 2014 [cited by applicant]
WO WO2017184415A1 · 2017 [cited by applicant]
WO WO2022235262A1 · 2022 [cited by applicant]
WO WO2023178185A2 · 2023 [cited by applicant]
WO WO2023178209A2 · 2023 [cited by applicant]
Amazon.com: Morris Products 70332 Roller Ball Contacts, Open, Circuit/dp/B01CBVAYO2, http://www.amazon.com/Morris-Products-70332-Contacts-Circuit/dp/dp/B01CBVAYO2, downloaded Mar. 16, 2016, 8 pages. [cited by applicant]
Communication—Extended European Search Report, European Patent Application No. 17786362.8, Jan. 13, 2020, 6 pages. [cited by applicant]
Extended European Search Report for European Application No. EP23192572.8 dated Sep. 13, 2023, 5 pages. [cited by applicant]
Final Office Action for U.S. Appl. No. 16/094,754 dated Apr. 13, 2023, 6 pages. [cited by applicant]
Final Office Action for U.S. Appl. No. 18/366,902 mailed Mar. 27, 2025, 10 pages. [cited by applicant]
Final Office Action issued in U.S. Appl. No. 16/094,754 mailed on Aug. 30, 2022, 20 pages. [cited by applicant]
Final Office Action issued in U.S. Appl. No. 17/692,550 dated Feb. 10, 2023, 15 pages. [cited by applicant]
First Office Action, China Patent Application No. 2017800379560, Dec. 1, 2020, with English translation, 8 pages. [cited by applicant]
Huang et al. “A comprehensive study of low-power operation in IEEE 802.15. 4. In Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems” Oct. 23, 2007, pp. 405-408. [cited by applicant]
Insinkerator, Food Waste Disposer, Sink Top Switch, downloaded Mar. 16, 2016, 2 pages. [cited by applicant]
International Preliminary Report on Patentability for International Application No. PCT/US2021/030700, mailed Oct. 24, 2023, 8 pages. [cited by applicant]
International Preliminary Report on Patentability for International Application No. PCT/US2023/064448 mailed Sep. 10, 2024, 10 pages. [cited by applicant]
International Preliminary Report on Patentability for International Application No. PCT/US2023/064479 mailed Sep. 10, 2024, 9 pages. [cited by applicant]
International Search Report and Written Opinion for International Application No. PCT/US2021/030700 dated Jan. 25, 2022, 16 pages. [cited by applicant]
International Search Report and Written Opinion for PCT Application No. PCT/US2023/064448 dated Oct. 16, 2023, 14 pages. [cited by applicant]
International Search Report and Written Opinion for PCT Application No. PCT/US2023/064479 dated Sep. 19, 2023, 16 pages. [cited by applicant]
International Search Report and Written Opinion, International Patent Application No. PCT/US2017/027320, Jul. 17, 2017, 12 pages. [cited by applicant]
Invitation to pay additional fees for International Application No. PCT/US2023/064448, dated Aug. 2, 2023, 3 pages. [cited by applicant]
McKenna et al., “A Novel Device Maintaining Clear Optics During Surgery”, floshield.com/images/literature/Floshield-Lit_SAGES.pdf, downloaded May 23, 2019, 1 page. [cited by applicant]
MedGadget, ENDOPATH XCEL Trocar with OPTIVIEW Keeps The Lens Clean for Superior Visualization, http://www.medgadget.com/2010/03/endopath_xcel_trocar_with-optivie.. ., downloaded Mar. 16, 2016, 8 pages. [cited by applicant]
Non Final Office Action for U.S. Appl. No. 16/094,754 mailed on Dec. 22, 2022, 11 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 16/690,979 mailed on Jul. 15, 2022, 20 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 18/171,172 dated Dec. 27, 2023, 18 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 18/366,902 mailed Sep. 9, 2024, 18 pages. [cited by applicant]
Non-Final Office Action for U.S. Appl. No. 18/479,702 mailed Sep. 24, 2024, 9 pages. [cited by applicant]
Non-Final Rejection for U.S. Appl. No. 17/692,550, mailed on Aug. 31, 2022, 21 pages. [cited by applicant]
Notice of Acceptance for Australian Patent Application No. AU2022202336 dated May 20, 2024, 3 pages. [cited by applicant]
Notice of Reasons for Rejection for Japanese Application No. 2023-568287 mailed Mar. 11, 2025, with English translation, 8 pages. [cited by applicant]
Notice of Reasons for Rejection issued Apr. 4, 2023 in Japanese Patent Application No. 2021-184037, with English Translation, 5 pages. [cited by applicant]
Notice of Reasons for Rejection, Japanese Patent Application No. 2018-555658, Jan. 20, 2021, with English translation, 8 pages. [cited by applicant]
Office Action for Australian Application No. AU2022202336A1 dated May 12, 2023, 04 pages. [cited by applicant]
Office Action for Australian Application No. 2017253708, mailed on Mar. 18, 2022, 4 pages. [cited by applicant]
Office Action for Australian Patent Application No. AU2022202336 dated May 7, 2024, 4 pages. [cited by applicant]
Office Action for Chinese Application No. 201780037956.0, dated Nov. 24, 2022,12 pages. [cited by applicant]
Office Action for Chinese Application No. 20178037956, mailed Jun. 10, 2022, 16 pages. [cited by applicant]
Office Action for Japanese Application No. JP2021184037, mailed Nov. 14, 2022, 6 pages. [cited by applicant]
Office Action issued in U.S. Appl. No. 16/094,754 dated Feb. 2, 2022, 1-20. [cited by applicant]
Office Action issued in U.S. Appl. No. 16/690,996, dated Jan. 24, 2023, 9 pages. [cited by applicant]
Wikipedia, “Trocar”, https://en.wikipedia.org/wiki/Trocar , downloaded Mar. 16, 2016, 2 pages. [cited by applicant]
EP Application No. 23771637.8, Extended European Search Report mailed Jan. 27, 2026; Applicant Bayou Surgical, Inc.; 10 pages. [cited by applicant]
EP Application No. 23771654.3, Extended European Search Report mailed Feb. 2, 2026; Applicant Bayou Surgical, Inc.; 10 pages. [cited by applicant]
Final Office Action for U.S. Appl. No. 18/479,702 mailed Oct. 2, 2025, Inventor: Aluru et al., 10 pages. [cited by applicant]
U.S. Appl. No. 18/479,702, Non-Final Office Action mailed May 5, 2026; Inventor: Aluru, Rajitha et al.; 9 pages. [cited by applicant]