A61M 1/3621
Extra-corporeal blood circuits
Official title: {Extra-corporeal blood circuits (single-needle circuits A61M1/30)}
A61M1/3621 (Extra-corporeal blood circuits) appears on 5,896 US grants and 6,370 published applications in this corpus.
Search patents in A61M- Granted patents
- 5,896
- Published applications
- 6,370
- Assignees
- 1,514
- Inventors
- 7,453
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 20 | 0 |
| 1977 | 18 | 0 |
| 1978 | 14 | 0 |
| 1979 | 11 | 0 |
| 1980 | 24 | 0 |
| 1981 | 26 | 0 |
| 1982 | 16 | 0 |
| 1983 | 15 | 0 |
| 1984 | 33 | 0 |
| 1985 | 20 | 0 |
| 1986 | 26 | 0 |
| 1987 | 51 | 0 |
| 1988 | 36 | 0 |
| 1989 | 41 | 0 |
| 1990 | 36 | 0 |
| 1991 | 33 | 0 |
| 1992 | 34 | 0 |
| 1993 | 41 | 0 |
| 1994 | 63 | 0 |
| 1995 | 77 | 0 |
| 1996 | 72 | 0 |
| 1997 | 95 | 0 |
| 1998 | 132 | 0 |
| 1999 | 116 | 0 |
| 2000 | 100 | 0 |
| 2001 | 117 | 52 |
| 2002 | 85 | 152 |
| 2003 | 138 | 143 |
| 2004 | 126 | 215 |
| 2005 | 94 | 192 |
| 2006 | 93 | 173 |
| 2007 | 83 | 150 |
| 2008 | 76 | 163 |
| 2009 | 96 | 221 |
| 2010 | 149 | 229 |
| 2011 | 143 | 242 |
| 2012 | 172 | 227 |
| 2013 | 199 | 286 |
| 2014 | 190 | 292 |
| 2015 | 196 | 279 |
| 2016 | 226 | 294 |
| 2017 | 247 | 311 |
| 2018 | 227 | 290 |
| 2019 | 315 | 383 |
| 2020 | 283 | 383 |
| 2021 | 249 | 331 |
| 2022 | 266 | 306 |
| 2023 | 255 | 292 |
| 2024 | 288 | 264 |
| 2025 | 280 | 288 |
| 2026 | 153 | 212 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61M 1/3653Interfaces between patient blood circulation and extra-corporal blood circuit1,846
- A61M 1/3627Degassing devices1,462
- A61M 1/3622With a cassette forming partially or totally the blood circuit1,019
- A61M 1/3623Means for actively controlling temperature of blood906
- A61M 1/3643Priming, rinsing before or after use798
- A61M 1/3639Blood pressure control, pressure transducers specially adapted therefor672
- A61M 1/3666Cardiac or cardiopulmonary bypass536
- A61M 1/367Circuit parts not covered by the preceding subgroups of group a61m1/3621479
Recent patents
- Precision-controlled conduit restriction device6 Oct 2026US 12,752,097 B2Renal Devices Inc.
- Method for controlling a blood treatment apparatus, and apparatuses29 Sep 2026US 12,746,315 B2Fresenius Medical Care Deutschland GmbH
- Systems, assemblies, and methods of trauma management29 Sep 2026US 12,746,316 B2Lazarus Technologies LLC
- Systems and methods for returning treated mononuclear cells to a blood source29 Sep 2026US 12,746,317 B2Fenwal, Inc.
- Control of fluid temperature in a dialysis system22 Sep 2026US 12,741,070 B2Gambro Lundia AB
- Extracorporeal life support system with air purge control8 Oct 2026US 2026/0306728 A1LivaNova Deutschland GmbH
- Detector for detecting inclusions in fluid, medical treatment device comprising the same, and method for detecting inclusions in fluid1 Oct 2026US 2026/0295136 A1
- Method for removing uremic toxins from blood1 Oct 2026US 2026/0295137 A1Hospices Civils De Lyon
- Device and method for determination of a co2 partial pressure value on a blood side of an oxygenator24 Sep 2026US 2026/0284287 A1Abiomed Europe GmbH
- Catheter-based extracorporeal membrane oxygenation (ecmo)24 Sep 2026US 2026/0284290 A1VivaCath, Inc.
Most cited
By later US patents
- Endovascular aortic valve replacement1,735US 5,370,685 AStanford Surgical Technologies, Inc. · 1994
- Endovascular aortic valve replacement1,284US 5,545,214 AHeartport, Inc. · 1996
- Method and apparatus for in vivo heart valve decalcification1,130US 5,295,958 AShturman Cardiology Systems, Inc. · 1994
- System for cardiac procedures1,074US 5,769,812 AHeartport, Inc. · 1998
- Method for enriching a bodily fluid with a gas1,051US 6,974,435 B2TherOx, Inc. · 2005