A61M 5/3221
Constructional features thereof
Official title: {Constructional features thereof, e.g. to improve manipulation or functioning}
A61M5/3221 (Constructional features thereof) appears on 594 US grants and 494 published applications in this corpus.
Search patents in A61M- Granted patents
- 594
- Published applications
- 494
- Assignees
- 219
- Inventors
- 753
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 11 | 0 |
| 1990 | 21 | 0 |
| 1991 | 16 | 0 |
| 1992 | 21 | 0 |
| 1993 | 26 | 0 |
| 1994 | 24 | 0 |
| 1995 | 19 | 0 |
| 1996 | 29 | 0 |
| 1997 | 18 | 0 |
| 1998 | 17 | 0 |
| 1999 | 19 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 3 |
| 2002 | 17 | 21 |
| 2003 | 17 | 19 |
| 2004 | 14 | 21 |
| 2005 | 12 | 15 |
| 2006 | 5 | 15 |
| 2007 | 4 | 22 |
| 2008 | 6 | 14 |
| 2009 | 7 | 14 |
| 2010 | 7 | 14 |
| 2011 | 8 | 15 |
| 2012 | 10 | 23 |
| 2013 | 13 | 23 |
| 2014 | 14 | 32 |
| 2015 | 18 | 29 |
| 2016 | 17 | 22 |
| 2017 | 17 | 13 |
| 2018 | 19 | 31 |
| 2019 | 22 | 30 |
| 2020 | 19 | 26 |
| 2021 | 28 | 19 |
| 2022 | 19 | 18 |
| 2023 | 16 | 14 |
| 2024 | 14 | 17 |
| 2025 | 12 | 15 |
| 2026 | 8 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61M 2005/3223Means impeding or disabling repositioning of used needles at the syringe nozzleIndexing code238
- A61M 2005/3231Proximal end of needle captured or embedded inside piston headIndexing code211
- A61M 2005/3228The needle being retracted by a member protruding laterally through a slotIndexing code110
- A61M 2005/323Connection between plunger distal end and needle hub proximal endIndexing code85
- A61M 2005/3227The needle being retracted laterally outside the syringe barrelIndexing code62
Recent patents
- Magnetic autoinjector6 Oct 2026US 12,752,056 B2
- Syringe with an improved needle retraction mechanism18 Aug 2026US 12,708,719 B2Roncadelle Operations SRL
- Safety needle assembly for use with a medical injector14 Jul 2026US 12,678,570 B2Tip-Top.Com Ltd
- Auto-injectors for administration of a medicament within a prefilled syringe30 Jun 2026US 12,667,669 B2kaleo, Inc.
- System and method for safety syringe2 Jun 2026US 12,642,910 B2Credence Medsystems, Inc.
- Shielded needle unit with actuatable container coupling24 Sep 2026US 2026/0284310 A1
- Auto-injectors for administration of a medicament within a prefilled syringe24 Sep 2026US 2026/0284313 A1kaleo, Inc.
- System and method for safety syringe17 Sep 2026US 2026/0273188 A1Credence Medsystems, Inc.
- Injection device for delivering a drug6 Aug 2026US 2026/0224819 A1Shl Medical AG
- Injection needle apparatus with safe-protection function23 Jul 2026US 2026/0207855 A1Yao Sheng Electronic Co., Ltd.
Most cited
By later US patents
- Drug delivery systems and methods719US 6,645,181 B1Elan Pharma International Limited · 2003
- Needle guard and needle assembly for syringe603US 5,360,404 AInviro Medical Devices Ltd. · 1994
- Cannula insertion set with safety retracting needle471US 4,747,831 APhase Medical, Inc. · 1988
- One step catheter advancement automatic needle retraction system395US 5,865,806 ABecton, Dickinson and Company · 1999
- Injector for delivering fluid to internal target tissue359US 5,354,287 ASenetek PLC · 1994