A61B 17/3421
Cannulas
Official title: {Cannulas}
A61B17/3421 (Cannulas) appears on 6,451 US grants and 8,343 published applications in this corpus.
Search patents in A61B- Granted patents
- 6,451
- Published applications
- 8,343
- Assignees
- 1,785
- Inventors
- 8,643
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 36 | 0 |
| 1994 | 36 | 0 |
| 1995 | 41 | 0 |
| 1996 | 52 | 0 |
| 1997 | 56 | 0 |
| 1998 | 87 | 0 |
| 1999 | 104 | 0 |
| 2000 | 80 | 0 |
| 2001 | 69 | 33 |
| 2002 | 81 | 138 |
| 2003 | 91 | 124 |
| 2004 | 77 | 185 |
| 2005 | 58 | 251 |
| 2006 | 72 | 260 |
| 2007 | 66 | 248 |
| 2008 | 51 | 314 |
| 2009 | 70 | 276 |
| 2010 | 170 | 319 |
| 2011 | 228 | 360 |
| 2012 | 247 | 337 |
| 2013 | 281 | 336 |
| 2014 | 321 | 402 |
| 2015 | 328 | 418 |
| 2016 | 295 | 387 |
| 2017 | 312 | 415 |
| 2018 | 282 | 420 |
| 2019 | 404 | 563 |
| 2020 | 410 | 486 |
| 2021 | 370 | 524 |
| 2022 | 355 | 428 |
| 2023 | 388 | 347 |
| 2024 | 388 | 317 |
| 2025 | 324 | 274 |
| 2026 | 173 | 181 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61B 17/3423Access ports2,645
- A61B 2017/3445Used as instrument channel for multiple instrumentsIndexing code1,553
- A61B 17/3439With means for changing the inner diameter of the cannula1,030
- A61B 17/3431Being collapsible510
- A61B 2017/345For introduction into a natural body openingIndexing code386
- A61B 2017/3443With means for adjusting the length of a cannulaIndexing code285
- A61B 2017/3435Using everted sleevesIndexing code174
- A61B 2017/3433With different outer diameters of the cannulaIndexing code151
All 9 subgroupsShow fewer
Recent patents
- Hydro dissection and suction laparoscopic instruments and methods of use6 Oct 2026US 12,751,735 B2
- Tool driver with reaction torque sensor for use in robotic surgery6 Oct 2026US 12,751,780 B2Auris Health, Inc.
- Cannula and infusion devices6 Oct 2026US 12,752,052 B2Unomedical A/S
- Method and apparatus for performing spine surgery29 Sep 2026US 12,745,997 B2NuVasive, Inc.
- Access ports for use with surgical robots29 Sep 2026US 12,746,035 B2Conmed Corporation
- Laparoscope drive system, laparoscope installation detection method, and surgical robot8 Oct 2026US 2026/0305932 A1Ronovo (Shanghai) Medical Science and Technology Ltd.
- Handheld Penetrative Devices for Treating Pleural Conditions, and Related Methods and Systems8 Oct 2026US 2026/0306130 A1Creare Inc.
- Surgical Tool With Proximally Mounted Camera For Use With Cannulas8 Oct 2026US 2026/0306132 A1Viseon, Inc.
- Multiple cannula trocar assembly8 Oct 2026US 2026/0306133 A1Alcon Inc.
- Trocar for cleaning medical devices therein8 Oct 2026US 2026/0306134 A1Covidien LP
Most cited
By later US patents
- Surgical instrument and method2,959US 5,662,662 AEthicon Endo-Surgery, Inc. · 1997
- Method for operating a surgical instrument2,913US 5,626,587 AEthicon Endo-Surgery, Inc. · 1997
- Surgical instrument2,874US 5,564,615 AEthicon, Inc. · 1996
- Surgical instrument2,802US 5,601,224 AEthicon, Inc. · 1997
- Surgical instrument2,666US 5,577,654 AEthicon Endo-Surgery, Inc. · 1996