A61M 5/145
Using pressurised reservoirs
Official title: using pressurised reservoirs, e.g. by means of pistons
A61M5/145 (Using pressurised reservoirs) appears on 4,638 US grants and 5,555 published applications in this corpus.
Search patents in A61M- Granted patents
- 4,638
- Published applications
- 5,555
- Assignees
- 1,248
- Inventors
- 6,676
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 12 | 0 |
| 1982 | 18 | 0 |
| 1983 | 11 | 0 |
| 1984 | 18 | 0 |
| 1985 | 22 | 0 |
| 1986 | 27 | 0 |
| 1987 | 27 | 0 |
| 1988 | 23 | 0 |
| 1989 | 23 | 0 |
| 1990 | 33 | 0 |
| 1991 | 26 | 0 |
| 1992 | 34 | 0 |
| 1993 | 53 | 0 |
| 1994 | 54 | 0 |
| 1995 | 30 | 0 |
| 1996 | 42 | 0 |
| 1997 | 31 | 0 |
| 1998 | 63 | 0 |
| 1999 | 80 | 0 |
| 2000 | 56 | 0 |
| 2001 | 44 | 26 |
| 2002 | 64 | 76 |
| 2003 | 92 | 104 |
| 2004 | 59 | 157 |
| 2005 | 47 | 134 |
| 2006 | 49 | 103 |
| 2007 | 51 | 197 |
| 2008 | 46 | 194 |
| 2009 | 68 | 193 |
| 2010 | 117 | 208 |
| 2011 | 140 | 221 |
| 2012 | 171 | 266 |
| 2013 | 204 | 212 |
| 2014 | 199 | 272 |
| 2015 | 190 | 255 |
| 2016 | 189 | 233 |
| 2017 | 214 | 280 |
| 2018 | 228 | 249 |
| 2019 | 243 | 321 |
| 2020 | 241 | 304 |
| 2021 | 215 | 268 |
| 2022 | 263 | 327 |
| 2023 | 227 | 297 |
| 2024 | 217 | 293 |
| 2025 | 221 | 210 |
| 2026 | 123 | 155 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61M 5/1452Pressurised by means of pistons3,229
- A61M 5/148Flexible889
- A61M 2005/14506Mechanically drivenIndexing code518
- A61M 5/14586Pressurised by means of a flexible diaphragm468
- A61M 2005/14513With secondary fluid driving or regulating the infusionIndexing code325
- A61M 5/155Pressurised by gas introduced into the reservoir201
Recent patents
- Cranial drug delivery system6 Oct 2026US 12,752,051 B1CraniUS LLC
- Submucosal drug delivery apparatuses, systems, and methods6 Oct 2026US 12,752,079 B2Massachusetts Eye and Ear Infirmary
- Implantable guide device29 Sep 2026US 12,746,089 B2Neurochase Technologies Limited
- Pump startup algorithms and related systems and methods29 Sep 2026US 12,746,328 B2ICU Medical, Inc.
- Drug delivery device actuated using lead screw and motor29 Sep 2026US 12,746,329 B2Manta MedTech LLC
- Medicament delivery system and method therefor8 Oct 2026US 2026/0306737 A1Shl Medical AG
- Adjustable preload for spring-loaded pumping elements in an infusion pump8 Oct 2026US 2026/0306739 A1CareFusion 303, Inc.
- Drug delivery device with an improved mechanism for controlling the delivery rate8 Oct 2026US 2026/0306740 A1Ypsomed AG
- Multiple use computerized injector8 Oct 2026US 2026/0306748 A1E3D A.C.A.L Ltd
- Device for subcutaneous delivery of fluid medicament1 Oct 2026US 2026/0295153 A1NeuroDerm, Ltd.
Most cited
By later US patents
- Wearable, self-contained drug infusion device1,559US 6,589,229 B1Becton, Dickinson and Company · 2003
- Modular infusion device and method1,554US 6,749,587 B2Insulet Corporation · 2004
- Compact pump drive system1,514US 6,248,093 B1MiniMed Inc. · 2001
- External infusion pump apparatus1,475US 4,685,903 APacesetter Infusion, Ltd. · 1987
- Syringes and syringe pumps1,269US 6,019,745 AZeneca Limited · 2000