A61H 31/00
Artificial respiration by a force applied to the chest
Official title: Artificial respiration by a force applied to the chest; Heart stimulation, e.g. heart massage (applying electric currents by contact electrodes for stimulation, e.g. heart pace-makers, A61N1/36 {; teaching or training models, demonstration models for medical purposes G09B23/288})
A61H31/00 (Artificial respiration by a force applied to the chest) appears on 1,202 US grants and 1,520 published applications in this corpus.
Search patents in A61H- Granted patents
- 1,202
- Published applications
- 1,520
- Assignees
- 378
- Inventors
- 1,771
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 11 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 18 | 10 |
| 2002 | 18 | 25 |
| 2003 | 14 | 21 |
| 2004 | 17 | 34 |
| 2005 | 15 | 47 |
| 2006 | 21 | 34 |
| 2007 | 23 | 23 |
| 2008 | 14 | 45 |
| 2009 | 14 | 32 |
| 2010 | 22 | 43 |
| 2011 | 17 | 33 |
| 2012 | 29 | 52 |
| 2013 | 29 | 47 |
| 2014 | 52 | 81 |
| 2015 | 34 | 74 |
| 2016 | 47 | 90 |
| 2017 | 58 | 104 |
| 2018 | 54 | 91 |
| 2019 | 69 | 94 |
| 2020 | 76 | 69 |
| 2021 | 77 | 97 |
| 2022 | 61 | 98 |
| 2023 | 72 | 82 |
| 2024 | 71 | 68 |
| 2025 | 75 | 72 |
| 2026 | 50 | 54 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61H 31/004Heart stimulation991
- A61H 31/008Supine patient supports or bases276
- A61H 2031/002Fixed on the chest by adhesivesIndexing code115
- A61H 31/02Iron lungs112
- A61H 2031/003Artificial respiration by a force applied to the chest: with alternated thoraxIndexing code108
- A61H 2031/001Fixed on the chest by suctionIndexing code69
Recent patents
- Selective activation of chest compressions synchronized with myocardial activity6 Oct 2026US 12,751,894 B2ZOLL Medical Corporation
- Automated chest compression device6 Oct 2026US 12,751,895 B2ZOLL Medical Corporation
- Underwater rescue device29 Sep 2026US 12,747,009 B2
- Mechanical cardiopulmonary resuscitation device suction cup22 Sep 2026US 12,740,918 B2Physio-Control, Inc.
- Cardiopulmonary resuscitation, treatment, and analysis15 Sep 2026US 12,734,369 B2University of Connecticut
- Devices and systems for thermal management and ingress protection of medical devices8 Oct 2026US 2026/0306358 A1Zoll Circulation, Inc.
- Modifying chest compression parameters to reduce refibrillation risk1 Oct 2026US 2026/0294737 A1Stryker Corporation
- Compression depth feedback and adjustment24 Sep 2026US 2026/0283901 A1Stryker Corporation
- Multimodality Medical Procedure Mattress-Based Device17 Sep 2026US 2026/0272743 A1Egg Medical, Inc.
- Apparatus for providing cpr including automated cpr chest compression device17 Sep 2026US 2026/0272772 A1
Most cited
By later US patents
- CPR system with feed back instruction1,181US 8,511,308 B2Cpair, Inc. · 2013
- System and method for tracking and archiving battery performance data840US 9,197,079 B2Zoll Circulation, Inc. · 2015
- CPR chest compression monitor415US 6,390,996 B1The Johns Hopkins University · 2002
- Stimulatory device and methods to electrically stimulate the phrenic nerve378US 6,463,327 B1CPRx LLC · 2002
- Method and apparatus for enhancement of chest compressions during CPR364US 7,220,235 B2ZOLL Medical Corporation · 2007