A61M 5/1452
Pressurised by means of pistons
Official title: {pressurised by means of pistons}
A61M5/1452 (Pressurised by means of pistons) appears on 3,229 US grants and 4,117 published applications in this corpus.
Search patents in A61M- Granted patents
- 3,229
- Published applications
- 4,117
- Assignees
- 864
- Inventors
- 4,765
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 11 | 0 |
| 1983 | 5 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 13 | 0 |
| 1987 | 16 | 0 |
| 1988 | 12 | 0 |
| 1989 | 11 | 0 |
| 1990 | 13 | 0 |
| 1991 | 9 | 0 |
| 1992 | 13 | 0 |
| 1993 | 28 | 0 |
| 1994 | 15 | 0 |
| 1995 | 13 | 0 |
| 1996 | 14 | 0 |
| 1997 | 14 | 0 |
| 1998 | 27 | 0 |
| 1999 | 43 | 0 |
| 2000 | 24 | 0 |
| 2001 | 21 | 21 |
| 2002 | 36 | 58 |
| 2003 | 52 | 75 |
| 2004 | 47 | 122 |
| 2005 | 36 | 95 |
| 2006 | 35 | 76 |
| 2007 | 37 | 139 |
| 2008 | 32 | 150 |
| 2009 | 59 | 145 |
| 2010 | 89 | 158 |
| 2011 | 114 | 167 |
| 2012 | 110 | 196 |
| 2013 | 157 | 165 |
| 2014 | 149 | 197 |
| 2015 | 132 | 190 |
| 2016 | 159 | 170 |
| 2017 | 155 | 213 |
| 2018 | 166 | 192 |
| 2019 | 190 | 230 |
| 2020 | 180 | 221 |
| 2021 | 175 | 190 |
| 2022 | 195 | 238 |
| 2023 | 169 | 218 |
| 2024 | 164 | 212 |
| 2025 | 163 | 161 |
| 2026 | 87 | 118 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A61M 5/14566With a replaceable reservoir for receiving a piston rod of the pump874
- A61M 5/1456With a replaceable reservoir comprising a piston rod to be moved into766
- A61M 5/14546Front-loading type injectors694
- A61M 5/1454Spring-actuated420
- A61M 5/14526The piston being actuated by fluid pressure323
- A61M 2005/14573With a replaceable reservoir for quick connection/disconnection with a driving systemIndexing code241
- A61M 5/1458Means for capture of the plunger flange203
- A61M 2005/14533Cam actuatedIndexing code92
Recent patents
- 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
- Fluid paths for angiography injector assembly29 Sep 2026US 12,746,330 B2Bayer HealthCare LLC
- Coupling apparatus for infusion device29 Sep 2026US 12,746,381 B2Nexus Medical, LLC
- 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.
- Syringe system and associated methods1 Oct 2026US 2026/0295172 A1Clearstream Technologies Limited
- Full-automatic foaming apparatus and method24 Sep 2026US 2026/0284299 A1Carefree Heartbeat Medical Technology (Shenzhen) Co., Ltd.
Most cited
By later US patents
- 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
- Transcutaneous delivery means1,148US 6,699,218 B2Insulet Corporation · 2004
- Infusion pump system and methods996US 8,287,487 B2Asante Solutions, Inc. · 2012