A61M 2039/242
Designed to open when a predetermined pressure or flow rate has been
Official title: {designed to open when a predetermined pressure or flow rate has been reached, e.g. check valve actuated by fluid}
A61M2039/242 (Designed to open when a predetermined pressure or flow rate has been) appears on 387 US grants and 461 published applications in this corpus.
Search patents in A61M- Granted patents
- 387
- Published applications
- 461
- Assignees
- 224
- Inventors
- 754
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 10 |
| 2003 | 11 | 10 |
| 2004 | 6 | 9 |
| 2005 | 4 | 15 |
| 2006 | 1 | 9 |
| 2007 | 4 | 10 |
| 2008 | 3 | 8 |
| 2009 | 6 | 25 |
| 2010 | 1 | 11 |
| 2011 | 18 | 17 |
| 2012 | 13 | 22 |
| 2013 | 15 | 16 |
| 2014 | 15 | 16 |
| 2015 | 8 | 18 |
| 2016 | 15 | 23 |
| 2017 | 14 | 20 |
| 2018 | 22 | 24 |
| 2019 | 20 | 35 |
| 2020 | 23 | 22 |
| 2021 | 21 | 25 |
| 2022 | 14 | 32 |
| 2023 | 31 | 31 |
| 2024 | 21 | 24 |
| 2025 | 17 | 15 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Needleless connector having check valve with concave flow surface29 Sep 2026US 12,746,383 B2CareFusion 303, Inc.
- Methods and systems for draining cerebrospinal fluid into the venous system15 Sep 2026US 12,734,344 B2Cerevasc, Inc.
- Micro-infusion device and infusion set4 Aug 2026US 12,697,430 B2CareFusion 303, Inc.
- Catheter with flow balancing valve23 Jun 2026US 12,661,176 B2Biosense Webster (Israel) Ltd.
- Device and method for applying a pharmaceutical fluid12 May 2026US 12,622,576 B2Heraeus Medical GmbH
- Ingestible devices, assemblies, and methods for delivering a therapeutic agent8 Oct 2026US 2026/0306810 A1Rani Therapeutics, LLC
- Electronic atomization apparatus10 Sep 2026US 2026/0263708 A1Shenzhen Moore Vaporization Health & Medical Technology Co., Ltd.
- Apparatus and method for targeted delivery of thrombolytic agent to an indwelling iv catheter tip10 Sep 2026US 2026/0263745 A1Becton, Dickinson and Company
- Gas control in medical fluid filters6 Aug 2026US 2026/0224823 A1Tessen Solutions Limited
- System and method for wearable airflow modulation and respiratory regulation6 Aug 2026US 2026/0224840 A1
Most cited
By later US patents
- Plastic needleless valve housing for standard male luer locks272US 5,441,487 AMedex, Inc. · 1995
- Valve device for a catheter252US 5,322,518 AB. Braun Melsungen AG · 1994
- Anti-reflux valve with environmental barrier246US 5,578,059 AMedex, Inc. · 1996
- Multiple dose drug vial adapter for use with a vial having a pierceable septum and a needleless syringe241US 5,833,213 ARymed Technologies, Inc. · 1998
- Fluid transfer device218US 4,084,606 ABaxter Travenol Laboratories, Inc. · 1978