A61F 2/04
Hollow or tubular parts of organs
Official title: Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts (A61F2/18, A61F2/20 take precedence; instruments specially adapted for placement or removal of stents or stent-grafts A61F2/95)
A61F2/04 (Hollow or tubular parts of organs) appears on 8,626 US grants and 10,860 published applications in this corpus.
Search patents in A61F- Granted patents
- 8,626
- Published applications
- 10,860
- Assignees
- 2,322
- Inventors
- 10,855
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 12 | 0 |
| 1979 | 6 | 0 |
| 1980 | 14 | 0 |
| 1981 | 13 | 0 |
| 1982 | 13 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 19 | 0 |
| 1986 | 22 | 0 |
| 1987 | 27 | 0 |
| 1988 | 41 | 0 |
| 1989 | 36 | 0 |
| 1990 | 36 | 0 |
| 1991 | 28 | 0 |
| 1992 | 40 | 0 |
| 1993 | 41 | 0 |
| 1994 | 58 | 0 |
| 1995 | 71 | 0 |
| 1996 | 73 | 0 |
| 1997 | 139 | 0 |
| 1998 | 187 | 0 |
| 1999 | 161 | 0 |
| 2000 | 185 | 0 |
| 2001 | 216 | 112 |
| 2002 | 208 | 297 |
| 2003 | 223 | 351 |
| 2004 | 180 | 429 |
| 2005 | 151 | 389 |
| 2006 | 177 | 418 |
| 2007 | 118 | 401 |
| 2008 | 122 | 378 |
| 2009 | 128 | 374 |
| 2010 | 250 | 440 |
| 2011 | 275 | 415 |
| 2012 | 294 | 398 |
| 2013 | 299 | 492 |
| 2014 | 427 | 520 |
| 2015 | 361 | 446 |
| 2016 | 383 | 468 |
| 2017 | 441 | 489 |
| 2018 | 361 | 502 |
| 2019 | 421 | 515 |
| 2020 | 453 | 549 |
| 2021 | 368 | 458 |
| 2022 | 343 | 477 |
| 2023 | 315 | 426 |
| 2024 | 343 | 422 |
| 2025 | 327 | 457 |
| 2026 | 190 | 237 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61F 2/06Blood vessels6,960
- A61F 2002/044Oesophagi or esophagi or gulletsIndexing code531
- A61F 2002/045Stomach, intestinesIndexing code525
- A61F 2002/041Bile ductsIndexing code251
- A61F 2002/048UretersIndexing code234
- A61F 2002/043BronchiIndexing code226
- A61F 2002/047UrethraeIndexing code196
- A61F 2/042Urinary bladders177
All 9 subgroupsShow fewer
Recent patents
- Medical device for introducing into a bodily hollow viscus, medical set, and production method6 Oct 2026US 12,751,812 B2Acandis GmbH & Co. KG
- Uncaging stent6 Oct 2026US 12,751,844 B2Elixir Medical Corporation
- Aortic arch repair systems, devices and methods6 Oct 2026US 12,751,846 B2Octin Health, Inc.
- Devices and methods for anchoring a sheath in a tissue cavity6 Oct 2026US 12,751,853 B2Averto Medical, Inc.
- Vascular graft system and a method of processing an arterial pressure pulse trace29 Sep 2026US 12,745,961 B2City University of Hong Kong
- Systems and methods for endoluminal valve creation8 Oct 2026US 2026/0306131 A1InterVene, Inc.
- Percutaneous potts shunt devices and methods8 Oct 2026US 2026/0306241 A1Transmural Systems LLC
- Branch Artery Reconstruction Assist Device and S-C Branch-First Aortic Reconstruction System8 Oct 2026US 2026/0306242 A1Apt Medical Inc.
- Stent graft having fenestration part8 Oct 2026US 2026/0306243 A1Ribs, Inc.
- Prophylactic system and support structure for an aneurysm8 Oct 2026US 2026/0306244 A1Life Seal Vascular, Inc.
Most cited
By later US patents
- Expandable intraluminal graft, and method and apparatus for implanting an expandable intraluminal graft3,751US 4,733,665 AExpandable Grafts Partnership · 1988
- Prosthesis comprising an expansible or contractile tubular body2,717US 4,655,771 AShepherd Patents S.A. · 1987
- Medical devices incorporating sim alloy elements2,338US 4,665,906 ARaychem Corporation · 1987
- Surgical stapling instrument2,273US 5,732,872 AHeartport, Inc. · 1998
- Percutaneous placement valve stent2,220US 5,957,949 AWorld Medical Manufacturing Corporation · 1999