A61M 1/71
Suction drainage systems
Official title: {Suction drainage systems (containers therefor A61M1/60, A61M1/64; negative pressure wound therapy systems A61M1/90)}
A61M1/71 (Suction drainage systems) appears on 5,095 US grants and 5,923 published applications in this corpus.
Search patents in A61M- Granted patents
- 5,095
- Published applications
- 5,923
- Assignees
- 1,552
- Inventors
- 7,160
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 23 | 0 |
| 1977 | 21 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 18 | 0 |
| 1982 | 11 | 0 |
| 1983 | 17 | 0 |
| 1984 | 21 | 0 |
| 1985 | 17 | 0 |
| 1986 | 12 | 0 |
| 1987 | 42 | 0 |
| 1988 | 51 | 0 |
| 1989 | 47 | 0 |
| 1990 | 50 | 0 |
| 1991 | 49 | 0 |
| 1992 | 42 | 0 |
| 1993 | 66 | 0 |
| 1994 | 64 | 0 |
| 1995 | 62 | 0 |
| 1996 | 64 | 0 |
| 1997 | 67 | 0 |
| 1998 | 78 | 0 |
| 1999 | 67 | 0 |
| 2000 | 71 | 0 |
| 2001 | 58 | 20 |
| 2002 | 55 | 79 |
| 2003 | 68 | 95 |
| 2004 | 64 | 107 |
| 2005 | 50 | 109 |
| 2006 | 39 | 86 |
| 2007 | 47 | 154 |
| 2008 | 27 | 142 |
| 2009 | 48 | 157 |
| 2010 | 103 | 205 |
| 2011 | 107 | 205 |
| 2012 | 127 | 178 |
| 2013 | 194 | 256 |
| 2014 | 213 | 295 |
| 2015 | 184 | 245 |
| 2016 | 179 | 247 |
| 2017 | 196 | 325 |
| 2018 | 213 | 296 |
| 2019 | 293 | 424 |
| 2020 | 261 | 386 |
| 2021 | 261 | 354 |
| 2022 | 280 | 391 |
| 2023 | 253 | 301 |
| 2024 | 332 | 358 |
| 2025 | 277 | 307 |
| 2026 | 182 | 201 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61M 1/74Suction control2,407
- A61M 1/77Suction-irrigation systems2,066
- A61M 1/73Comprising sensors or indicators for physical values959
- A61M 1/78Means for preventing overflow or contamination of the pumping systems679
- A61M 1/79Filters for solid matter633
- A61M 1/72Cassettes forming partially or totally the fluid circuit411
- A61M 1/76Handpieces358
Recent patents
- Fluid feeding and suction apparatus, endoscope system, and method of suction residue by endoscope system6 Oct 2026US 12,751,609 B2Olympus Medical Systems Corp.
- Kidney stone treatment system6 Oct 2026US 12,751,728 B2Calyxo, Inc.
- Computer-aided vacuum thrombectomy systems and methods for estimating therapeutic benefit6 Oct 2026US 12,751,729 B1Penumbra, Inc.
- Fecal management systems and methods6 Oct 2026US 12,752,046 B2CM Technologies, Inc.
- Flow control mechanism for kidney stone treatment system6 Oct 2026US 12,752,047 B2Calyxo, Inc.
- Large bore suction overtube8 Oct 2026US 2026/0305924 A1
- Outflow control based on connected device8 Oct 2026US 2026/0306729 A1Arthrex, Inc.
- Portable suction devices, systems, and methods for controlling suction using same8 Oct 2026US 2026/0306730 A1The Research Foundation for The State University of New York
- Systems and methods for thermal monitoring during phacoemulsification surgery1 Oct 2026US 2026/0294684 A1Johnson & Johnson Surgical Vision, Inc.
- Milk expression system and method1 Oct 2026US 2026/0295130 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Endoscopic electrosurgical apparatus2,415US 5,334,183 AValleylab, Inc. · 1994
- Surgical tool2,269US 5,395,312 A1995
- Robotic surgical instruments with a fluid flow control system for irrigation, aspiration, and blowing2,107US 8,241,271 B2Intuitive Surgical Operations, Inc. · 2012
- Wound treatment employing reduced pressure2,003US 5,636,643 AWake Forest University · 1997
- Non-circular resection device and endoscope1,951US 6,629,630 B2SciMed Life Systems, Inc. · 2003