IP Library Granted Patent US 12,458,399
Granted Patent B2
US 12,458,399 · App. 17/311,724 · Granted Nov 4, 2025

Postpartum uterine hemorrhage device

Inventors: Andy H. Uchida (Los Altos, CA); Piyush Arora (Fremont, CA); Amelia Degenkolb (San Luis Obispo, CA); Sara Della Ripa (San Luis Obispo, CA); Jan Segnitz (Morgan Hill, CA); Nathan Bair (San Luis Obispo, CA)
Assignee: Alydia Health, Inc.
A61B17/4241A61B17/12099A61B17/12136A61B2017/00557A61B2017/12004A61B2017/306A61B2017/4216A61B2090/08021
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 12,458,399
App. No.
17/311,724
Granted
Nov 4, 2025
Kind
B2
Abstract

An anti-hemorrhaging device includes an elongate body, a flexible looped segment, a shield, and an inflatable seal. The elongate body is configured to attach to a vacuum source. The flexible looped segment is attached to the elongate body includes a plurality of holes on an inner circumference thereof. The flexible looped segment is configured to be placed in a uterus. Activation of the vacuum source is configured to pull vacuum through the plurality of holes so as to collapse the uterus upon insertion of the elongate body into the uterus. The shield is folded around an exterior circumference of the looped portion and has edges that extend radially inwards relative to the flexible looped distal section. The shield is configured to prevent tissue from occluding the plurality of holes when vacuum is applied. The inflatable seal is attached to the elongate body and is configured to seal the uterus.

Claims (20)

1 . An anti-hemorrhaging device, comprising:

a proximal portion comprising a shaft housing a central vacuum channel and a connector at a proximal opening configured to connect the central vacuum channel to a vacuum source;

a distal portion connected to the proximal portion; the distal portion comprising:

a first elongate tube having a first vacuum channel;

a second elongate tube having a second vacuum channel, the first vacuum channel and the second vacuum channel being in fluidic communication with the central vacuum channel of the proximal portion; the second elongate tube joined with and extending side-by-side in parallel to the first elongate tube and defining at least one crevice in an outer surface of the distal portion extending along a longitudinal axis; and

a plurality of holes positioned along the at least one crevice and extending from the outer surface to an inner surface of both the first channel and the second-channel, wherein activation of the vacuum source is configured to pull vacuum through the central vacuum channel of the proximal portion, and the first vacuum channel, the second vacuum channel and the plurality of holes of the distal portion so as to collapse a uterus upon insertion of the device into the uterus; and

a seal located on the longitudinal axis between the proximal portion and the distal portion.

2 . The anti-hemorrhaging device of claim 1 , wherein the seal is inflatable including an inflation channel connected to the seal and extending along the proximal portion.

3 . The anti-hemorrhaging device of claim 2 , wherein the seal has a central disk portion and tapered proximal and distal ends.

4 . The anti-hemorrhaging device of claim 1 , wherein the seal is an invertible umbrella-shaped diaphragm seal.

5 . The anti-hemorrhaging device of claim 4 , wherein the seal includes an outer ring having a thickness greater than a skirt of the seal.

6 . The anti-hemorrhaging device of claim 1 , wherein each of the plurality of holes has an elongated shape with a length along the longitudinal axis longer than a width.

7 . The anti-hemorrhaging device of claim 1 , wherein the at least one crevice has a depth of between 0.02″ and 0.2″.

8 . The anti-hemorrhaging device of claim 1 , wherein an angle of the at least one crevice is between 10 and 80 degrees.

9 . The anti-hemorrhaging device of claim 1 , wherein a ratio of a width of the first and second elongate tubes to a height of the first and second elongate tubes is between 1.4 and 2.3, the width and height perpendicular to the at least one crevice.

10 . The anti-hemorrhaging device of claim 1 , wherein a ratio of a height of the first and second elongate tubes to a width of the first and second elongate tubes is between 1.4 and 2.3, the width and height perpendicular to the at least one crevice.

11 . The anti-hemorrhaging device of claim 1 , wherein a ratio of a height of the first and second elongate tubes to a width of the first and second elongate tubes is approximately 1, the width and height perpendicular to the at least one crevice.

12 . The anti-hemorrhaging device of claim 1 , wherein each of the plurality of holes extends completely through the at least one crevice from the outer surface to a second opposite outer surface of the device.

13 . The anti-hemorrhaging device of claim 1 , wherein the distal portion further comprises a tapered distal tip.

14 . The anti-hemorrhaging device of claim 1 wherein the plurality of holes is configured to provide preferential directional bending for the distal portion.

Assignments (10)
SECURITY INTEREST Recorded Feb 27, 2026
From: ALYDIA HEALTH, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 073924/0283 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2026
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: ALYDIA HEALTH, INC.
Reel/Frame 073647/0789 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2026
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (SUCCESSOR IN INTEREST TO U.S. BANK NATIONAL ASSOCIATION), AS COLLATERAL AGENT
To: ALYDIA HEALTH, INC.
Reel/Frame 073648/0021 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2026
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION (SUCCESSOR IN INTEREST TO U.S. BANK NATIONAL ASSOCIATION), AS COLLATERAL AGENT
To: ALYDIA HEALTH, INC.
Reel/Frame 073648/0252 →
RELEASE OF SECURITY INTEREST Recorded Jan 30, 2026
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: ALYDIA HEALTH, INC.
Reel/Frame 073648/0473 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 8, 2025
From: UCHIDA, ANDY H.; ARORA, PIYUSH; DEGENKOLB, AMELIA; DELLA-RIPA, SARA; SEGNITZ, JAN; BAIR, NATHAN
To: ALYDIA HEALTH, INC.
Reel/Frame 072514/0686 →
SECURITY INTEREST Recorded May 29, 2024
From: ALYDIA HEALTH, INC.
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 067545/0844 →
SECURITY INTEREST Recorded Mar 15, 2023
From: ALYDIA HEALTH, INC.
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 062994/0905 →
SECURITY INTEREST Recorded Mar 15, 2023
From: ALYDIA HEALTH, INC.
To: JP MORGAN CHASE BANK, N.A.
Reel/Frame 062994/0933 →
SECURITY INTEREST Recorded Mar 15, 2023
From: ALYDIA HEALTH, INC.
To: U.S. BANK NATIONAL ASSOCIATION
Reel/Frame 062994/0955 →
Continuity (3)
Provisional Application 62861233 · Jun 13, 2019
Provisional Application 62777642 · Dec 10, 2018
Related Publication 20220022916A1 · Jan 27, 2022
References Cited (195)
US 1928992A · Clark et al. · 1933 [cited by applicant]
US 2185927A · Shelanski · 1940 [cited by applicant]
US 2286462A · Chaffin · 1942 [cited by applicant]
US 2400251A · Nagel · 1946 [cited by applicant]
US 2483851A · Smith · 1949 [cited by applicant]
US 2925904A · Eichholz · 1960 [cited by applicant]
US 2981255A · Heyns · 1961 [cited by applicant]
US 3062215A · Heyns · 1962 [cited by applicant]
US 3517665A · Sheldon · 1970 [cited by applicant]
US 3626928A · Barringer et al. · 1971 [cited by applicant]
US 3670732A · Robinson · 1972 [cited by applicant]
US 3774613A · Woods, Jr. et al. · 1973 [cited by applicant]
US 3828781A · Rothman · 1974 [cited by applicant]
US 3835843A · Karman · 1974 [cited by applicant]
US 3848602A · Gutnick · 1974 [cited by applicant]
US 3923051A · Solchet · 1975 [cited by applicant]
US 3929133A · Ragab · 1975 [cited by applicant]
US 4013079A · Lindemann et al. · 1977 [cited by applicant]
US 4111209A · Wolvek et al. · 1978 [cited by applicant]
US 4141360A · Lasswell · 1979 [cited by applicant]
US 4217904A · Zahorsky · 1980 [cited by examiner]
US 4317452A · Russo · 1982 [cited by examiner]
US 4444548A · Andersen et al. · 1984 [cited by applicant]
US 4533345A · Louw · 1985 [cited by applicant]
US 4552557A · Rangaswamy · 1985 [cited by applicant]
US 4563183A · Barrodale et al. · 1986 [cited by applicant]
US 4573965A · Russo · 1986 [cited by examiner]
US 4681123A · Valtchev · 1987 [cited by applicant]
US 4767404A · Renton · 1988 [cited by applicant]
US 4784654A · Beecher · 1988 [cited by applicant]
US 4807625A · Singleton · 1989 [cited by applicant]
US 4925452A · Melinyshyn et al. · 1990 [cited by applicant]
US 4950232A · Ruzicka · 1990 [cited by examiner]
US 4955875A · Knowles · 1990 [cited by applicant]
US 4981477A · Schon et al. · 1991 [cited by applicant]
US 5030202A · Harris · 1991 [cited by applicant]
US 5100395A · Rosenberg · 1992 [cited by applicant]
US 5104377A · Levine · 1992 [cited by applicant]
US 5160325A · Nichols et al. · 1992 [cited by applicant]
US 5242438A · Saadatmanesh et al. · 1993 [cited by applicant]
US 5254084A · Geary · 1993 [cited by applicant]
US 5360414A · Yarger · 1994 [cited by applicant]
US 5431173A · Chin et al. · 1995 [cited by applicant]
US 5451208A · Goldrath · 1995 [cited by applicant]
US 5464409A · Mohajer · 1995 [cited by applicant]
US 5472435A · Sutton · 1995 [cited by applicant]
US 5569284A · Young et al. · 1996 [cited by applicant]
US 5603685A · Tutrone, Jr. · 1997 [cited by applicant]
US 5769880A · Truckai et al. · 1998 [cited by applicant]
US 5800414A · Cazal · 1998 [cited by applicant]
US 5807282A · Fowler · 1998 [cited by applicant]
US 5928249A · Saadat et al. · 1999 [cited by applicant]
US 5941873A · Korenfeld · 1999 [cited by applicant]
US 6042535A · Porter · 2000 [cited by applicant]
US 6350463B1 · Herman et al. · 2002 [cited by applicant]
US 6443947B1 · Marko et al. · 2002 [cited by applicant]
US 6506149B2 · Peng et al. · 2003 [cited by applicant]
US 6508815B1 · Strul et al. · 2003 [cited by applicant]
US 6641575B1 · Lonky · 2003 [cited by applicant]
US 6676680B1 · Packer · 2004 [cited by applicant]
US 6736822B2 · McClellan et al. · 2004 [cited by applicant]
US 7247141B2 · Makin et al. · 2007 [cited by applicant]
US 7325546B2 · Burbank et al. · 2008 [cited by applicant]
US 7512445B2 · Truckai et al. · 2009 [cited by applicant]
US 7708716B2 · Shah · 2010 [cited by applicant]
US 8197470B2 · Sharkey et al. · 2012 [cited by applicant]
US 8221401B2 · Sharkey et al. · 2012 [cited by applicant]
US 8287552B2 · Grillo · 2012 [cited by applicant]
US 9125686B2 · Norred et al. · 2015 [cited by applicant]
US 9301770B2 · Gruber · 2016 [cited by applicant]
US 9421346B2 · Callahan et al. · 2016 [cited by applicant]
US 9550014B2 · Norred et al. · 2017 [cited by applicant]
US 9763731B2 · Dubois et al. · 2017 [cited by applicant]
US 9919083B2 · Blin · 2018 [cited by applicant]
US 10064651B2 · Norred et al. · 2018 [cited by applicant]
US 20010014787A1 · Toyokawa · 2001 [cited by examiner]
US 20020010457A1 · Duchon et al. · 2002 [cited by applicant]
US 20030064746A1 · Rader et al. · 2003 [cited by applicant]
US 20030191452A1 · Meglin et al. · 2003 [cited by applicant]
US 20040006331A1 · Shchervinsky · 2004 [cited by applicant]
US 20040122352A1 · John · 2004 [cited by applicant]
US 20040220550A1 · Schryver · 2004 [cited by applicant]
US 20040249360A1 · Spehalski · 2004 [cited by examiner]
US 20050261663A1 · Patterson et al. · 2005 [cited by applicant]
US 20070032814A1 · Hibler · 2007 [cited by applicant]
US 20070149998A1 · Wicks et al. · 2007 [cited by applicant]
US 20080045924A1 · Cox et al. · 2008 [cited by applicant]
US 20080051708A1 · Kumar et al. · 2008 [cited by applicant]
US 20080188863A1 · Chu · 2008 [cited by applicant]
US 20080319472A1 · Shelley · 2008 [cited by applicant]
US 20090048685A1 · Frigstad et al. · 2009 [cited by applicant]
US 20090093795A1 · Koeper · 2009 [cited by applicant]
US 20100069886A1 · Wilkes · 2010 [cited by applicant]
US 20100168691A1 · Long · 2010 [cited by examiner]
US 20100191279A1 · Kassab et al. · 2010 [cited by applicant]
US 20100198214A1 · Layton, Jr. · 2010 [cited by examiner]
US 20100228239A1 · Freed · 2010 [cited by applicant]
US 20100274260A1 · D'Arpiany et al. · 2010 [cited by applicant]
US 20110087337A1 · Forsell · 2011 [cited by applicant]
US 20110098524A1 · Rojas · 2011 [cited by applicant]
US 20110208178A1 · Truckai · 2011 [cited by applicant]
US 20110276022A1 · O'Day · 2011 [cited by examiner]
US 20120041419A1 · Blanchard et al. · 2012 [cited by applicant]
US 20120071841A1 · Bengtson · 2012 [cited by applicant]
US 20120172889A1 · Chin et al. · 2012 [cited by applicant]
US 20130245637A1 · Norred et al. · 2013 [cited by applicant]
US 20130266165A1 · Neumeyer · 2013 [cited by applicant]
US 20130296816A1 · Greener · 2013 [cited by applicant]
US 20140079241A1 · Chan et al. · 2014 [cited by applicant]
US 20140163532A1 · Comnet et al. · 2014 [cited by applicant]
US 20140200591A1 · Sullivan et al. · 2014 [cited by applicant]
US 20140228801A1 · Keeling · 2014 [cited by applicant]
US 20140228877A1 · Kassab et al. · 2014 [cited by applicant]
US 20150080861A1 · Ozer · 2015 [cited by applicant]
US 20150142032A1 · Scheib et al. · 2015 [cited by applicant]
US 20150165151A1 · Payton et al. · 2015 [cited by applicant]
US 20170035949A1 · Loske · 2017 [cited by applicant]
US 20170224379A1 · Carson et al. · 2017 [cited by applicant]
US 20170281231A1 · Langell · 2017 [cited by examiner]
US 20180055523A1 · Bair et al. · 2018 [cited by applicant]
US 20190083132A1 · Norred et al. · 2019 [cited by applicant]
US 20190216504A1 · Norred et al. · 2019 [cited by applicant]
US 20200352602A1 · Norred et al. · 2020 [cited by applicant]
CN 2097618U · 1992 [cited by applicant]
CN 2116469U · 1992 [cited by applicant]
CN 2149183Y · 1993 [cited by applicant]
CN 2254720Y · 1997 [cited by applicant]
CN 2415733Y · 2001 [cited by applicant]
CN 2464264Y · 2001 [cited by applicant]
CN 2467062Y · 2001 [cited by applicant]
CN 2559321Y · 2003 [cited by applicant]
CN 2565407Y · 2003 [cited by applicant]
CN 2633227Y · 2004 [cited by applicant]
CN 2662850Y · 2004 [cited by applicant]
CN 2933317Y · 2007 [cited by applicant]
CN 201185945Y · 2009 [cited by applicant]
CN 101366650A · 2009 [cited by applicant]
CN 201337472Y · 2009 [cited by applicant]
CN 201356633Y · 2009 [cited by applicant]
CN 201361088Y · 2009 [cited by applicant]
CN 202044560U · 2011 [cited by applicant]
CN 202146327U · 2012 [cited by applicant]
CN 202288422U · 2012 [cited by applicant]
CN 203122506U · 2013 [cited by applicant]
CN 106390212A · 2017 [cited by applicant]
CN 106821472A · 2017 [cited by applicant]
CN 206587003U · 2017 [cited by applicant]
CN 107427659A · 2017 [cited by applicant]
CN 206852626U · 2018 [cited by applicant]
CN 207220865U · 2018 [cited by applicant]
GB 839965A · 1960 [cited by applicant]
GB 1469584A · 1977 [cited by applicant]
IN 20030006513 · 2005 [cited by applicant]
IN 5953CHE2014 · 2015 [cited by applicant]
IN 4745CHE2015 · 2016 [cited by applicant]
JP 2001513357A · 2001 [cited by applicant]
JP 2001510071A5 · 2006 [cited by applicant]
JP 2007523716A · 2007 [cited by applicant]
JP 2010246911A · 2010 [cited by applicant]
JP 2015512275A · 2015 [cited by applicant]
JP 2018533461A · 2018 [cited by applicant]
JP 2019531864A · 2019 [cited by applicant]
KR 20010002164A · 2001 [cited by applicant]
RU 2113246C1 · 1998 [cited by applicant]
RU 98112U1 · 2010 [cited by applicant]
RU 102509U1 · 2011 [cited by applicant]
RU 2429792C1 · 2011 [cited by applicant]
RU 244003802 · 2012 [cited by applicant]
SU 1426560A1 · 1988 [cited by applicant]
SU 1431746A1 · 1988 [cited by applicant]
WO WO2001080788A2 · 2001 [cited by applicant]
WO WO2011097350A1 · 2011 [cited by applicant]
WO WO2012137894A1 · 2012 [cited by applicant]
WO WO2020123525A1 · 2020 [cited by applicant]
WO WO2021016564A1 · 2021 [cited by applicant]
Balloon Uterine Stent, Cook Medical, Cook, 2017, 3 pages, [Online] [Retrieved on Dec. 21, 2017] Retrieved from the Internet <URL:https://www.cookmedical.com/products/wh_bus_webds/>. [cited by applicant]
Ebb—Clinical Innovations—forMom. forBaby. forLife, Clinical Innovations, LLC, 2016, 6 pages, [Online] [Retrieved on Dec. 21, 2017] Retrieved from the Internet <URL:http://clinicalinnovations.com/portfolio-items/ebb/>. [cited by applicant]
Ebb, Complete Tamponade System, Clinical Innovations, LLC, undated, 2 pages, [Online] [Retrieved on Dec. 21, 2017] Retrieved from the Internet <URL: http://clinicalinnovations.com/wp-content/uploads/2017/04/056-0086-Rev… [cited by applicant]
Hofmeyr, J.; Uterine suction devices: Review of literature and potential role; Effective care research unit, Univ. of the Witwatersrand/Fort Hare/Eastern Cape Dept. of Health; 22 pages: known of at least by Nov. 2018. [cited by applicant]
Manage Postpartum Hemorrhage, Bakri, Postpartum Balloon With Rapid Instillation Components, Cook, Mar. 2017, 4 pages, [Online] [Retrieved on Dec. 21, 2017] Retrieved from the Internet <URL: https://www.cookmedical.com/d… [cited by applicant]
Panicker, T.N.V., “Panicker's Vacuum Suction Haemostatic Device for Treating Post-Partum Haemorrhage,” The Journal of Obstetrics and Gynecology of India, Mar.-Apr. 2017, pp. 150-151, vol. 67, No. 2, [Online] [Retrieved … [cited by applicant]
Goates, T. et al.; Poster: UVAC Uterine Vacuum Assisted Contraction, University of Utah Health Science, Center for Medical Innovation, Bench to Bedside, Apr. 2016. [cited by applicant]
Postpartum Hemorrhage PPH Bakri Style Balloon BT—Cath Balloon Tamponade Catheter, Utah Medical Products Inc., 1999-2017, 3 pages, [Online] Retrieved from the Internet <URL: http://www.utahmed.com/bt-cath.html>. [cited by applicant]
Purwosunu et al.; Control of postpartum hemorrhage using vacuum-induced uterine tamponade; Obstetrics and Gynecology; 128(1); pp. 33-36; Jul. 2016. [cited by applicant]
Ram, S. et al., “Vacuum Retraction of Uterus for the Management of Atonic Postpartum Hemorrhage,” IOSR Journal of Dental and Medical Sciences (IOSR-JDMS), Nov. 2014, pp. 15-19, vol. 13, Issue 11, Ver. III. May be Retrie… [cited by applicant]
Shields et al.; ACOG Practice Bulletin—Clinical Management Guidelines for Obstetrician-Gynecologists; Postpartum Hemorrhage; Obstetrics and Gynecology; 130(4); pp. e168-e186; Oct. 2017. [cited by applicant]
Video of B2B Competition 2016, Bench 2 Bedside Student Program; Can be Viewed at <URL: http://uofuhealth.utah.edu/center-for-medical-innovation/backup_folder/index-old.php>. [PDF of program contents enclosed]. [cited by applicant]
Dr. Panicker's PPH Suction Device—INSTASTOP: (Screenshot) 1 page; retrieved from the internet at YouTube (https://www.youtube.com/watch?v=a-QlpkeT3Gg); Published Jan. 26, 2017. [cited by applicant]
Panickers PPH Suction Device; (Screenshot) 1 page; retrieved from the internet at YouTube (https://www.youtube.com/watch?v=KDa_tl_p3qVM); Published Apr. 9, 2015. [cited by applicant]
Panicker's PPH Suction Device; (Screenshot) 1 page; retrieved from the internet at YouTube (https://www.youtube.com/watch?v=uQYoWEbWJOg); Published Oct. 25, 2016. [cited by applicant]
Webinar on: Vacuum Retraction Cannula for Managing Atonic PPH; (Screenshot) 1 page; retrieved from the internet at YouTube (https://www.youtube.com/watch?v=FSpn8JLSQIA); Published Oct. 25, 2016. [cited by applicant]
Office Action for Japanese Patent Application No. 2021-555152, mailed Oct. 3, 2023, 3 pages. [cited by applicant]
Green Journal, “Animated Simulation of Vacuum-Induced Uterine Tamponade for Treatment of Postpartum Hemorrhage”, Jun. 20, 2016, 2 pages, retrieved from <youtube.com/watchv=46Wiei8sUgM>. [cited by applicant]
European Search Report for EPO Application No. 19895990.0, mailed Aug. 5, 2022, 10 pages. [cited by applicant]
Office Action for Eurasian Patent Office Application No. 202191636 (Jan. 12, 2022). [cited by applicant]
Cited By (1)
US 12,616,503