A61M 39/229
Single-way cut-off valves
Official title: {Single-way cut-off valves}
A61M39/229 (Single-way cut-off valves) appears on 284 US grants and 436 published applications in this corpus.
Search patents in A61M- Granted patents
- 284
- Published applications
- 436
- Assignees
- 186
- Inventors
- 719
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 4 |
| 2007 | 0 | 4 |
| 2008 | 2 | 6 |
| 2009 | 2 | 10 |
| 2010 | 1 | 13 |
| 2011 | 6 | 10 |
| 2012 | 5 | 3 |
| 2013 | 14 | 13 |
| 2014 | 9 | 17 |
| 2015 | 13 | 25 |
| 2016 | 9 | 23 |
| 2017 | 16 | 31 |
| 2018 | 17 | 38 |
| 2019 | 26 | 28 |
| 2020 | 21 | 28 |
| 2021 | 25 | 39 |
| 2022 | 18 | 37 |
| 2023 | 29 | 32 |
| 2024 | 33 | 31 |
| 2025 | 24 | 24 |
| 2026 | 8 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Patency checking system18 Aug 2026US 12,708,708 B2Becton, Dickinson and Company
- X-bar stopcock device for pulmonary artery catheterization11 Aug 2026US 12,702,813 B2The Regents of the University of Michigan
- Rotary valve26 May 2026US 12,638,086 B2Carmo Holdings APS
- Sheath and cannula combination devices for selectively directing blood flow and enabling interventional medical procedures19 May 2026US 12,629,495 B2Tufts Medical Center, Inc.
- Ball valve for use in a respiration circuit and a respiration circuit including a ball valve31 Mar 2026US 12,589,233 B2Engineered Medical Systems, Inc.
- Bidirectional Stopper Valve That Mates to a Venting Syringe13 Aug 2026US 2026/0232237 A1Becton, Dickinson and Company
- Hemostasis valve16 Jul 2026US 2026/0198941 A1Imperative Care, Inc.
- System and method for selective pressure-controlled therapeutic delivery16 Jul 2026US 2026/0199639 A1TriSalus Life Sciences, Inc.
- Syringe With Integrated Easy-Open Cap2 Jul 2026US 2026/0183486 A1Becton, Dickinson and Company
- Systems and methods for delivering a fluid to a patient with reduced contamination18 Jun 2026US 2026/0166224 A1Magnolia Medical Technologies, Inc.
Most cited
By later US patents
- Manifold with check valve positioned within manifold body260US 6,099,511 AMerit Medical Systems, Inc. · 2000
- Combination blood sampling and intravenous infusion apparatus and method160US 4,865,583 A1989
- Self flushing luer activated blood sampling devices139US 7,314,452 B2Edwards Lifesciences Corporation · 2008
- Aspiration system with accelerated response97US 11,259,821 B2Imperative Care, Inc. · 2022
- Manifold hub for patient fluid administration85US 7,563,243 B2Biometrix Ltd. · 2009