A61M 1/70
Gravity drainage systems
Official title: {Gravity drainage systems (drainage containers not being adapted for subjection to vacuum A61M1/69)}
A61M1/70 (Gravity drainage systems) appears on 113 US grants and 139 published applications in this corpus.
Search patents in A61M- Granted patents
- 113
- Published applications
- 139
- Assignees
- 73
- Inventors
- 255
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 3 | 3 |
| 2013 | 2 | 5 |
| 2014 | 2 | 5 |
| 2015 | 3 | 2 |
| 2016 | 2 | 3 |
| 2017 | 5 | 10 |
| 2018 | 5 | 13 |
| 2019 | 8 | 8 |
| 2020 | 7 | 9 |
| 2021 | 8 | 12 |
| 2022 | 11 | 12 |
| 2023 | 5 | 17 |
| 2024 | 10 | 9 |
| 2025 | 11 | 11 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum system to clear standing column of fluid4 Aug 2026US 12,697,426 B2C. R. Bard, Inc.
- Heart support and massage machine7 Apr 2026US 12,594,414 B2Imam Abdulrahman Bin Faisal University
- Chest drain connector18 Nov 2025US 12,472,341 B2Nottingham Trent University
- Nebulizer gas scavenger system with medication recycling and consumption metering28 Oct 2025US 12,453,827 B2Yale University
- Urinary drainage system with air pressure apparatus23 Sep 2025US 12,420,005 B2C. R. Bard, Inc.
- Multi-lumen drainage conduits with pre-evacuated lumen and drainage lumen for draining bodily fluids9 Jul 2026US 2026/0192037 A1Bard Peripheral Vascular, Inc.
- Device for holding post-surgery drain reservoir9 Jul 2026US 2026/0192095 A1
- Heart support appartus for cardiac resuscitation9 Jul 2026US 2026/0192103 A1Imam Abdulrahman Bin Faisal University
- Methods and systems for treatment of cerebral edema7 May 2026US 2026/0124352 A1Inventx LLC
- Systems and methods for nasal irrigation19 Feb 2026US 2026/0047979 A1RhinoSystems, Inc.
Most cited
By later US patents
- Percutaneous irrigation and drainage system183US 5,002,528 A1991
- Apparatus for locating body cavities157US 5,356,386 AUresil Corporation · 1994
- Device for draining a body cavity82US 3,982,546 A1976
- Apparatus for locating body cavities having signaling indicator74US 4,944,724 AUresil Corporation · 1990
- Breast pump device with self-contained breast milk reservoir67US 8,118,772 B22012