A61M 39/228
With a tubular diaphragm constrictable by radial fluid force
Official title: {with a tubular diaphragm constrictable by radial fluid force}
A61M39/228 (With a tubular diaphragm constrictable by radial fluid force) appears on 105 US grants and 73 published applications in this corpus.
Search patents in A61M- Granted patents
- 105
- Published applications
- 73
- Assignees
- 51
- Inventors
- 102
- Latest grant
- 2 Jun 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 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 4 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 3 | 9 |
| 2010 | 2 | 2 |
| 2011 | 2 | 1 |
| 2012 | 3 | 3 |
| 2013 | 1 | 4 |
| 2014 | 4 | 9 |
| 2015 | 3 | 2 |
| 2016 | 9 | 3 |
| 2017 | 5 | 3 |
| 2018 | 3 | 4 |
| 2019 | 3 | 3 |
| 2020 | 2 | 2 |
| 2021 | 3 | 5 |
| 2022 | 3 | 4 |
| 2023 | 3 | 1 |
| 2024 | 2 | 1 |
| 2025 | 3 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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 instrument20 Jan 2026US 12,527,944 B2Venus Medtech (Hangzhou), Inc.
- Valve assembly for medical procedures18 Nov 2025US 12,472,343 B2W. L. Gore & Associates, Inc.
- Collapsible thin-walled valve for drainage control3 Jun 2025US 12,318,552 B2C. R. Bard, Inc.
- Apparatus for negative-pressure therapy and irrigation8 Apr 2025US 12,268,836 B2Solventum Intellectual Properties Company
- Hemostasis Valve, Catheter Sheath, and Method for Sealing Interventional Instrument7 May 2026US 2026/0124439 A1Venus Medtech (Hangzhou), Inc.
- Valve assembly for medical procedures12 Feb 2026US 2026/0041901 A1W. L. Gore & Associates, Inc.
- Collapsible Thin-Walled Valve for Drainage Control18 Sep 2025US 2025/0288775 A1C. R. Bard, Inc.
- Systems and methods for treating a carotid artery10 Apr 2025US 2025/0114586 A1Silk Road Medical, Inc.
- Restriction device15 Aug 2024US 2024/0269456 A1
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