A61M 1/61
Two- or three-bottle systems for underwater drainage
Official title: {Two- or three-bottle systems for underwater drainage, e.g. for chest cavity drainage}
A61M1/61 (Two- or three-bottle systems for underwater drainage) appears on 174 US grants and 74 published applications in this corpus.
Search patents in A61M- Granted patents
- 174
- Published applications
- 74
- Assignees
- 62
- Inventors
- 174
- Latest grant
- 1 Nov 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 12 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 12 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 9 |
| 2003 | 4 | 8 |
| 2004 | 3 | 7 |
| 2005 | 6 | 4 |
| 2006 | 2 | 1 |
| 2007 | 4 | 10 |
| 2008 | 1 | 2 |
| 2009 | 3 | 3 |
| 2010 | 2 | 5 |
| 2011 | 2 | 2 |
| 2012 | 3 | 1 |
| 2013 | 4 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 3 |
| 2017 | 1 | 4 |
| 2018 | 3 | 3 |
| 2019 | 3 | 3 |
| 2020 | 3 | 0 |
| 2021 | 4 | 3 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chest tube air leak detection system1 Nov 2022US 11,484,634 B2
- Automated optical detection of air leaks in chest tube drainage system11 Oct 2022US 11,464,894 B2Department of Veterans Affairs
- Suction discharge unit and suction discharge device9 Nov 2021US 11,167,072 B2Murata Manufacturing Co., Ltd.
- Medical device that prevents air leakage and environmental contamination during tube removal from patient9 Nov 2021US 11,167,076 B1EHK Medical, LLC
- System for improving fluid drainage31 Aug 2021US 11,103,623 B2InnoVital, LLC
- Devices and methods for managing chest or wound drainage23 Apr 2026US 2026/0108668 A1Centese, Inc.
- In-line gas analyzer for pleural drainage system29 Jan 2026US 2026/0027270 A1
- Multi-position modular carbon dioxide detector and indicator and methods of use26 Dec 2024US 2024/0424187 A1
- Method device that prevents air leakage and environmental contamination during tube removal from patient2 Dec 2021US 2021/0369924 A1EHK Medical, LLC
- Chest tube air leak detection system2 Dec 2021US 2021/0369925 A1
Most cited
By later US patents
- Suction drainage apparatus121US 4,650,477 ASorenson Research Co., Inc. · 1987
- Stand alone control module121US 5,382,244 ABaxter International Inc. · 1995
- Automated provision of information related to air evacuation from a chest cavity107US 7,207,946 B2Spiration, Inc. · 2007
- Chest drainage apparatus105US 4,735,606 ASherwood Medical Company · 1988
- Fluid recovery system100US 5,401,262 AAtrium Medical Corporation · 1995