IP Library Granted Patent US 12,527,906
Granted Patent B2
US 12,527,906 · App. 17/283,844 · Granted Jan 20, 2026

Device for treating bleeding

Inventors: Brian R. DuBois (Redwood City, CA); Luke Christopher Raymond (Redwood City, CA); Wei Liang (Redwood City, CA); Vladimir Gusiatnikov (Redwood City, CA); Johan Oscar Lennart Andreasson (Redwood City, CA); Bang Quoc Vu (Redwood City, CA)
Assignee: Teleflex Life Sciences LLC
A61M3/0258A61M3/0202A61M3/0245
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Quick Facts
Patent No.
US 12,527,906
App. No.
17/283,844
Granted
Jan 20, 2026
Kind
B2
Abstract

A system for treating internal bleeding via application of a heated irrigant, such that the heated irrigant is delivered at a flow rate of between 2 cc/s and 12 cc/s and at a temperature of between 46 degrees Celsius and 52 degrees Celsius.

Claims (26)

1 . A system for treating internal bleeding, comprising:

a reservoir configured to hold an irrigant;

a first impeller disposed within the reservoir, and configured to recirculate the irrigant within the reservoir;

a second impeller disposed within the reservoir and configured to motivate the irrigant from the reservoir;

a motor that simultaneously spins both the first impeller and the second impeller;

a heating element configured to heat the irrigant to generate a heated irrigant as the irrigant flows through and recirculates within the reservoir, wherein the heated irrigant is configured to arrest the internal bleeding upon delivery of the heated irrigant to a treatment area; and

a treatment catheter configured to receive the heated irrigant from the reservoir, the treatment catheter having an irrigant outlet and an irrigant inlet located at a distal portion of a catheter body of the treatment catheter, wherein the irrigant outlet is located farther distally on the catheter body than the irrigant inlet;

wherein the system is configured to deliver the heated irrigant from the irrigant outlet to the treatment area where there is the internal bleeding such that the heated irrigant is delivered at a flow rate of between 2 cc/s and 12 cc/s and a temperature of between 46 degrees Celsius and 52 degrees Celsius.

2 . The system of claim 1 wherein the heating element is configured to heat the irrigant via volumetric heating.

3 . The system of claim 1 wherein the heating element is configured to heat the irrigant via application of radio-frequency energy.

4 . The system of claim 1 wherein the treatment catheter, the heating element, or both include one or more sensors.

5 . The system of claim 4 further comprising a controller, wherein the controller is configured to receive data feedback from the one or more sensors.

6 . The system of claim 5 wherein the controller controls the heating element using the data feedback.

7 . The system of claim 5 , wherein the controller controls the motor using the data feedback.

8 . The system of claim 1 wherein the flow rate is between 2 cc/s and 6 cc/s.

9 . The system of claim 1 wherein the temperature is between 48 degrees Celsius and 52 degrees Celsius.

10 . The system of claim 1 , wherein the second impeller is configured to motivate the heated irrigant from the reservoir into the treatment catheter.

11 . A system for treating internal bleeding, comprising:

a treatment catheter having an irrigant outlet and an irrigant inlet located at a distal portion of a catheter body of the treatment catheter, wherein the irrigant outlet is located farther distally on the catheter body than the irrigant inlet; and

a heating apparatus connected the treatment catheter, wherein the heating apparatus includes:

a reservoir configured to hold an irrigant;

a first impeller disposed within the reservoir and configured to recirculate the irrigant within the reservoir;

a second impeller disposed within the reservoir and configured to motivate the irrigant from the reservoir into the treatment catheter;

a motor that simultaneously spins both the first impeller and the second impeller; and

a heating element configured to heat the irrigant to a temperature suitable to arrest the internal bleeding as the irrigant flows through the heating element to the treatment catheter;

wherein the system is configured to deliver heated irrigant from the irrigant outlet to a treatment area where there is the internal bleeding such that the heated irrigant is delivered at a flow rate of between 2 cc/s and 12 cc/s and at a temperature of between 46 degrees Celsius and 52 degrees Celsius.

Assignments (9)
MERGER Recorded Feb 16, 2024
From: TELEFLEX LIFE SCIENCES III LLC
To: TELEFLEX LIFE SCIENCES LLC
Reel/Frame 066621/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2024
From: TELEFLEX LIFE SCIENCES LIMITED
To: TELEFLEX LIFE SCIENCES III LLC
Reel/Frame 066617/0582 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 15, 2024
From: TELEFLEX LIFE SCIENCES LIMITED
To: TELEFLEX LIFE SCIENCES III LLC
Reel/Frame 066305/0073 →
MERGER Recorded Jan 15, 2024
From: TELEFLEX LIFE SCIENCES III LLC
To: TELEFLEX LIFE SCIENCES LLC
Reel/Frame 066305/0802 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 31, 2022
From: NEOTRACT, INC.
To: TELEFLEX LIFE SCIENCES LIMITED
Reel/Frame 058917/0381 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2021
From: NEOTRACT, INC.
To: TELEFLEX LIFE SCIENCES LIMITED
Reel/Frame 058592/0907 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2021
From: AIRITY TECHNOLOGIES, INC.
To: NEOTRACT, INC.
Reel/Frame 055868/0503 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2021
From: RAYMOND, LUKE CHRISTOPHER; LIANG, WEI; GUSIATNIKOV, VLADIMIR; ANDREASSON, JOHAN OSCAR LENNART; VU, BANG QUOC
To: AIRITY TECHNOLOGIES, INC.
Reel/Frame 055868/0229 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 8, 2021
From: DUBOIS, BRIAN R.
To: NEOTRACT, INC.
Reel/Frame 055867/0970 →
Continuity (2)
Provisional Application 62757270 · Nov 8, 2018
Related Publication 20210379276A1 · Dec 9, 2021
References Cited (111)
US 2908273A · Huston · 1959 [cited by examiner]
US 4637814A · Leiboff · 1987 [cited by examiner]
US 4924851A · Ognier et al. · 1990 [cited by applicant]
US 5178606A · Ognier · 1993 [cited by examiner]
US 5499994A · Tihon et al. · 1996 [cited by applicant]
US 5546964A · Stangerup · 1996 [cited by applicant]
US 6077246A · Kullas · 2000 [cited by examiner]
US 6228048B1 · Robbins · 2001 [cited by examiner]
US 9211381B2 · Faries · 2015 [cited by examiner]
US 9931192B2 · McLean et al. · 2018 [cited by applicant]
US 9949321B1 · Khanifar et al. · 2018 [cited by applicant]
US 10349998B2 · Levin et al. · 2019 [cited by applicant]
US 10702261B2 · Stiggelbout · 2020 [cited by applicant]
US 20030135250A1 · Lauman · 2003 [cited by examiner]
US 20030229263A1 · Connors et al. · 2003 [cited by applicant]
US 20040181235A1 · Daignault et al. · 2004 [cited by applicant]
US 20050008354A1 · Cassidy · 2005 [cited by applicant]
US 20050256530A1 · Petros · 2005 [cited by applicant]
US 20060195008A1 · Whalen et al. · 2006 [cited by applicant]
US 20070265689A1 · Frey · 2007 [cited by examiner]
US 20080262424A1 · Hooft · 2008 [cited by applicant]
US 20090112234A1 · Crainich et al. · 2009 [cited by applicant]
US 20100063351A1 · Witzmann et al. · 2010 [cited by applicant]
US 20100191045A1 · Gobron et al. · 2010 [cited by applicant]
US 20100217276A1 · Garrison · 2010 [cited by examiner]
US 20100256442A1 · Ogdahl et al. · 2010 [cited by applicant]
US 20100261950A1 · Lund et al. · 2010 [cited by applicant]
US 20100286717A1 · Heinrich et al. · 2010 [cited by applicant]
US 20110082471A1 · Holcomb et al. · 2011 [cited by applicant]
US 20110105841A1 · Kutikov et al. · 2011 [cited by applicant]
US 20110172755A1 · Nelson et al. · 2011 [cited by applicant]
US 20110276081A1 · Kilemnik · 2011 [cited by applicant]
US 20120041533A1 · Bertolino et al. · 2012 [cited by applicant]
US 20120041534A1 · Clerc et al. · 2012 [cited by applicant]
US 20120245600A1 · McLean et al. · 2012 [cited by applicant]
US 20120265006A1 · Makower et al. · 2012 [cited by applicant]
US 20130268001A1 · Catanese et al. · 2013 [cited by applicant]
US 20130296889A1 · Tong et al. · 2013 [cited by applicant]
US 20140005473A1 · Catanese et al. · 2014 [cited by applicant]
US 20140031835A1 · Viker et al. · 2014 [cited by applicant]
US 20140180067A1 · Stigall et al. · 2014 [cited by applicant]
US 20140275756A1 · Bender et al. · 2014 [cited by applicant]
US 20140296881A1 · Ranucci et al. · 2014 [cited by applicant]
US 20150025652A1 · McLean et al. · 2015 [cited by applicant]
US 20150122294A1 · Wang · 2015 [cited by examiner]
US 20150127050A1 · Lamson et al. · 2015 [cited by applicant]
US 20150351743A1 · Stiggelbout · 2015 [cited by applicant]
US 20160022265A1 · Kawaura et al. · 2016 [cited by applicant]
US 20160045297A1 · Siegel et al. · 2016 [cited by applicant]
US 20160095685A1 · Vemuri et al. · 2016 [cited by applicant]
US 20160220296A1 · Hastings et al. · 2016 [cited by applicant]
US 20170000598A1 · Bachar · 2017 [cited by applicant]
US 20170007310A1 · Rajagopalan · 2017 [cited by examiner]
US 20170135830A1 · Harkin et al. · 2017 [cited by applicant]
US 20170156723A1 · Keating et al. · 2017 [cited by applicant]
US 20180103945A1 · Ciulla et al. · 2018 [cited by applicant]
US 20180318114A1 · Huang et al. · 2018 [cited by applicant]
US 20190029880A1 · DuBois · 2019 [cited by applicant]
US 20190125334A1 · Tong et al. · 2019 [cited by applicant]
US 20200038213A1 · Bly et al. · 2020 [cited by applicant]
US 20200121442A1 · Askeland · 2020 [cited by applicant]
US 20210145619A1 · Bly et al. · 2021 [cited by applicant]
US 20210161641A1 · Bachar · 2021 [cited by applicant]
US 20210161642A1 · Jen et al. · 2021 [cited by applicant]
US 20210307641A1 · Rumbles et al. · 2021 [cited by applicant]
US 20220000445A1 · Datta et al. · 2022 [cited by applicant]
US 20220031357A1 · Cutts et al. · 2022 [cited by applicant]
US 20220031358A1 · Yarra et al. · 2022 [cited by applicant]
US 20220031389A1 · Fischell et al. · 2022 [cited by applicant]
US 20220061834A1 · Chung et al. · 2022 [cited by applicant]
US 20220125499A1 · Hoey et al. · 2022 [cited by applicant]
US 20220133462A1 · Kilemnik · 2022 [cited by applicant]
US 20220142464A1 · Petroff et al. · 2022 [cited by applicant]
US 20220240925A1 · Epstein et al. · 2022 [cited by applicant]
US 20220249219A1 · Chung et al. · 2022 [cited by applicant]
US 20220265262A1 · Melsheimer · 2022 [cited by applicant]
US 20220273918A1 · Ghriallais et al. · 2022 [cited by applicant]
US 20220378577A1 · Anderson et al. · 2022 [cited by applicant]
US 20220394827A1 · Raymond et al. · 2022 [cited by applicant]
US 20220395363A1 · Ghriallais et al. · 2022 [cited by applicant]
US 20230022482A1 · Dhavale · 2023 [cited by applicant]
CN 2540980 · 2003 [cited by applicant]
CN 105852938A · 2016 [cited by applicant]
CN 109675177A · 2019 [cited by applicant]
CN 211156119U · 2020 [cited by applicant]
CN 112891032A · 2021 [cited by applicant]
CN 216221843U · 2022 [cited by applicant]
DE 102019101987A1 · 2020 [cited by applicant]
GB 1563795A · 1980 [cited by applicant]
JP 2014502870A · 2014 [cited by applicant]
JP 2023502729A · 2023 [cited by applicant]
KR 101534820B1 · 2015 [cited by applicant]
WO 2012028843A1 · 2012 [cited by applicant]
WO 2012084268A1 · 2012 [cited by applicant]
WO 2017004432A1 · 2017 [cited by applicant]
WO 2020097560A1 · 2020 [cited by applicant]
WO 2021091713A1 · 2021 [cited by applicant]
WO 2021190092A1 · 2021 [cited by applicant]
Eryilmaz, Aylin et al. “Our Approach to Adult Patients With Epistaxis,” J Craniofacial Surgery, 27(3): e298-e301 (May 2016). [cited by applicant]
Novoa, E. et al. “Hot water irrigation as treatment for intractable posterior epistaxis in an out-patient setting,” J Laryngology & Otology, 126: 58-60 (2012). [cited by applicant]
PCT International Search Report mailed Feb. 20, 2020 in Application No. PCT/US2019/060614 filed Nov. 8, 2019. [cited by applicant]
PCT International Search Report mailed Jan. 21, 2021 in Application No. PCT/US2020/057339 filed Oct. 26, 2020. [cited by applicant]
PCT Written Opinion mailed Feb. 20, 2020 in Application No. PCT/US2019/060614 filed Nov. 8, 2019. [cited by applicant]
PCT Written Opinion mailed Jan. 21, 2021 in Application No. PCT/US2020/057339 filed Oct. 26, 2020. [cited by applicant]
Schlegel-Wagner, Christoph et al. “Non-invasive treatment of intractable posterior epistaxis with hot-water irrigation,” Rhinology, 44: 90-93 (2006). [cited by applicant]
Japanese Office Action mailed Aug. 14, 2023, in JP Patent Application No. 2021-523955. [cited by applicant]
Stangerup, Sven-Eric et al. “New Modification of Hot-Water Irrigation in the Treatment of Posterior Epistaxis,” Arch Otolaryngol Head Neck Surg, vol. 125: pp. 686-690 (Jun. 1999). [cited by applicant]
Examination Report issued in Europe for European Patent Application No. 19816990.6, dated Oct. 15, 2024, 10 pgs. [cited by applicant]
Office Action issued in China and its English translation for Chinese Patent Application No. 201980073605.4, dated Nov. 9, 2024, 9 pgs. [cited by applicant]
Decision for Final Rejection issued in Japan and its English translation, JP Application No. 2021-523955, mailed Feb. 6, 2025, 2 pgs. [cited by applicant]
Decision of Rejection issued in China and its English translation, CN Application No. 201980073605.4, mailed Jan. 21, 2025, 10 pgs. [cited by applicant]