A61M 39/227
Valves actuated by a secondary fluid
Official title: {Valves actuated by a secondary fluid, e.g. hydraulically or pneumatically actuated valves}
A61M39/227 (Valves actuated by a secondary fluid) appears on 196 US grants and 198 published applications in this corpus.
Search patents in A61M- Granted patents
- 196
- Published applications
- 198
- Assignees
- 111
- Inventors
- 328
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 3 |
| 2003 | 5 | 7 |
| 2004 | 5 | 1 |
| 2005 | 1 | 5 |
| 2006 | 1 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 3 |
| 2009 | 4 | 9 |
| 2010 | 3 | 3 |
| 2011 | 3 | 1 |
| 2012 | 4 | 3 |
| 2013 | 4 | 9 |
| 2014 | 5 | 14 |
| 2015 | 5 | 8 |
| 2016 | 13 | 11 |
| 2017 | 11 | 14 |
| 2018 | 10 | 14 |
| 2019 | 12 | 9 |
| 2020 | 10 | 10 |
| 2021 | 6 | 11 |
| 2022 | 12 | 13 |
| 2023 | 4 | 7 |
| 2024 | 11 | 12 |
| 2025 | 14 | 19 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Balloon blocker for occlusion and suction29 Sep 2026US 12,746,382 B2C. R. Bard, Inc.
- Pressure controlled valve11 Aug 2026US 12,702,814 B1Minivalve International B.V.
- Fluid delivery system14 Jul 2026US 12,678,555 B2Analog Devices, Inc.
- Fluid management systems and methods2 Jun 2026US 12,642,918 B2Stryker Corporation
- Systems and methods for endoluminal device treatment2 Jun 2026US 12,642,951 B2W. L. Gore & Associates, Inc.
- Hemostasis Valve, Catheter Sheath, and Method for Sealing Interventional Instrument7 May 2026US 2026/0124439 A1Venus Medtech (Hangzhou), Inc.
- Hemostatic powder delivery devices and methods of use16 Apr 2026US 2026/0102573 A1Boston Scientific Medical Device Limited
- Multi-channel automatic infusion valve9 Apr 2026US 2026/0096923 A1Alcon Inc.
- Balloon medical system19 Mar 2026US 2026/0077174 A1Medtronic Ireland Manufacturing Unlimited Company
- Valve assembly for medical procedures12 Feb 2026US 2026/0041901 A1W. L. Gore & Associates, Inc.
Most cited
By later US patents
- Pressure-actuated valve for sealing flow conduit290US 5,071,411 ACordis Corporation · 1991
- Aspiration control system275US 5,429,601 AAmerican Cyanamid Company · 1995
- Aspiration control system268US 5,242,404 AAmerican Cyanamid Company · 1993
- Pressure sensitive valves for extracorporeal circuits251US 5,186,431 A1993
- Method and apparatus for continuous adjustment of positive airway pressure for treating obstructive sleep apnea248US 5,335,654 ANew York University · 1994