A61M 5/3291
Shafts with additional lateral openings
Official title: {Shafts with additional lateral openings}
A61M5/3291 (Shafts with additional lateral openings) appears on 272 US grants and 375 published applications in this corpus.
Search patents in A61M- Granted patents
- 272
- Published applications
- 375
- Assignees
- 167
- Inventors
- 624
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 4 |
| 2002 | 6 | 3 |
| 2003 | 5 | 9 |
| 2004 | 3 | 9 |
| 2005 | 6 | 12 |
| 2006 | 1 | 11 |
| 2007 | 3 | 8 |
| 2008 | 3 | 14 |
| 2009 | 6 | 11 |
| 2010 | 7 | 13 |
| 2011 | 6 | 11 |
| 2012 | 6 | 26 |
| 2013 | 12 | 17 |
| 2014 | 11 | 18 |
| 2015 | 11 | 15 |
| 2016 | 14 | 18 |
| 2017 | 6 | 16 |
| 2018 | 14 | 20 |
| 2019 | 13 | 17 |
| 2020 | 11 | 16 |
| 2021 | 8 | 19 |
| 2022 | 22 | 23 |
| 2023 | 15 | 27 |
| 2024 | 9 | 15 |
| 2025 | 9 | 12 |
| 2026 | 11 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cannula and infusion devices6 Oct 2026US 12,752,052 B2Unomedical A/S
- Continuous subcutaneous insulin infusion catheter22 Sep 2026US 12,741,088 B2Thomas Jefferson University
- System for treating a patient1 Sep 2026US 12,721,954 B2Fractyl Health, Inc.
- System and method for safety syringe2 Jun 2026US 12,642,910 B2Credence Medsystems, Inc.
- Puncture needle and needle assembly28 Apr 2026US 12,611,225 B2Terumo Kabushiki Kaisha
- Medical fluid transfer and injection apparatus and method17 Sep 2026US 2026/0273187 A1Enable Injections, Inc.
- Injection instrument and biomaterial20 Aug 2026US 2026/0241103 A1The University of Osaka
- Infiltration cannula with dual angle configuration20 Aug 2026US 2026/0241113 A1KG Surgical Instruments LLC
- Introducer Components, Assemblies, and Methods Thereof13 Aug 2026US 2026/0232963 A1Bard Access Systems, Inc.
- Puncture needle and needle assembly6 Aug 2026US 2026/0224243 A1Terumo Kabushiki Kaisha
Most cited
By later US patents
- Tissue penetrating device and methods for using same1,125US 7,226,450 B2Board of Regents, The University of Texas Systems · 2007
- Delivery of agents such as cells to tissue914US 8,182,444 B2Medrad, Inc. · 2012
- Interactive external defibrillation and drug injection system601US 5,405,362 ABoard of Regents for the University of Texas System · 1995
- Injector for delivering fluid to internal target tissue359US 5,354,287 ASenetek PLC · 1994
- System and method for rapid vascular drug delivery327US 5,451,210 ABoard of Regents, The Univ. of TX System · 1995