A61M 25/0053
Having a variable stiffness along the longitudinal axis
Official title: {having a variable stiffness along the longitudinal axis, e.g. by varying the pitch of the coil or braid}
A61M25/0053 (Having a variable stiffness along the longitudinal axis) appears on 681 US grants and 850 published applications in this corpus.
Search patents in A61M- Granted patents
- 681
- Published applications
- 850
- Assignees
- 276
- Inventors
- 1,318
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 16 | 0 |
| 1997 | 10 | 0 |
| 1998 | 22 | 0 |
| 1999 | 26 | 0 |
| 2000 | 17 | 0 |
| 2001 | 19 | 7 |
| 2002 | 8 | 22 |
| 2003 | 15 | 11 |
| 2004 | 9 | 22 |
| 2005 | 13 | 27 |
| 2006 | 7 | 26 |
| 2007 | 4 | 29 |
| 2008 | 4 | 18 |
| 2009 | 8 | 18 |
| 2010 | 20 | 33 |
| 2011 | 16 | 25 |
| 2012 | 25 | 17 |
| 2013 | 14 | 24 |
| 2014 | 21 | 40 |
| 2015 | 26 | 29 |
| 2016 | 18 | 22 |
| 2017 | 20 | 41 |
| 2018 | 31 | 35 |
| 2019 | 40 | 41 |
| 2020 | 39 | 54 |
| 2021 | 35 | 57 |
| 2022 | 40 | 58 |
| 2023 | 39 | 51 |
| 2024 | 26 | 54 |
| 2025 | 31 | 53 |
| 2026 | 25 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable stiffness catheter and methods thereof6 Oct 2026US 12,752,082 B2Washington University
- Guide catheter and methods of using the same29 Sep 2026US 12,746,373 B2Rutgers, The State University of New Jersey
- Catheter22 Sep 2026US 12,741,120 B2Asahi Intecc Co., Ltd.
- High flexibility, kink resistant catheter shaft1 Sep 2026US 12,721,968 B2Perfuze Limited
- Devices and systems for access and navigation of cerebrospinal fluid space1 Sep 2026US 12,721,980 B2Pharaoh Neuro, Inc.
- Catheters and methods of manufacture and use10 Sep 2026US 2026/0263743 A1Embolx, Inc.
- Suction Catheter30 Jul 2026US 2026/0216476 A1Lifetech Scientific (Shenzhen) Co., Ltd.
- Radial Access Catheter30 Jul 2026US 2026/0216477 A1MicroVention, Inc.
- Delivery systems and methods23 Jul 2026US 2026/0207362 A1Boston Scientific Scimed, Inc.
- Catheter23 Jul 2026US 2026/0207891 A1Piolax Medical Devices, Inc.
Most cited
By later US patents
- Torquable catheter1,473US 5,329,923 A1994
- Elongate medical device with continuous reinforcement member1,202US 7,850,623 B2Boston Scientific Scimed, Inc. · 2010
- Flexible tubular device for use in medical applications929US 5,573,520 AMayo Foundation for Medical Education and Research · 1996
- Torquable catheter and torquable tubular member for use therewith573US 5,477,856 A1995
- Catheter system for emboli containment551US 6,022,336 APercusurge, Inc. · 2000