A61M 1/30
Single needle dialysis
Official title: Single needle dialysis {; Reciprocating systems, alternately withdrawing blood from and returning it to the patient, e.g. single-lumen-needle dialysis or single needle systems for hemofiltration or pheresis}
A61M1/30 (Single needle dialysis) appears on 474 US grants and 364 published applications in this corpus.
Search patents in A61M- Granted patents
- 474
- Published applications
- 364
- Assignees
- 114
- Inventors
- 623
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 5 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 12 | 0 |
| 1997 | 19 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 6 |
| 2002 | 6 | 12 |
| 2003 | 9 | 10 |
| 2004 | 13 | 11 |
| 2005 | 10 | 9 |
| 2006 | 7 | 12 |
| 2007 | 5 | 8 |
| 2008 | 5 | 6 |
| 2009 | 5 | 12 |
| 2010 | 11 | 11 |
| 2011 | 3 | 9 |
| 2012 | 10 | 11 |
| 2013 | 16 | 42 |
| 2014 | 11 | 16 |
| 2015 | 14 | 5 |
| 2016 | 17 | 13 |
| 2017 | 16 | 13 |
| 2018 | 8 | 20 |
| 2019 | 20 | 19 |
| 2020 | 16 | 37 |
| 2021 | 18 | 25 |
| 2022 | 10 | 9 |
| 2023 | 20 | 20 |
| 2024 | 20 | 9 |
| 2025 | 20 | 12 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for high-throughput blood component collection22 Sep 2026US 12,741,074 B2Terumo BCT, Inc.
- Blood purification apparatus15 Sep 2026US 12,734,282 B2Nikkiso Co., Ltd.
- System and methods incorporating replacement fluid maximization11 Aug 2026US 12,702,738 B2Fenwal, Inc.
- Systems and methods for blood processing with a remote computing device7 Jul 2026US 12,673,145 B2Fenwal, Inc.
- Techniques for dialysis based on relative blood volume7 Apr 2026US 12,594,366 B2Fresenius Medical Care Deutschland GmbH
- Single needle dialysis system and methods27 Aug 2026US 2026/0248989 A1Outset Medical, Inc.
- Alternating flow intravascular catheters and related technologies14 May 2026US 2026/0131058 A1
- Blood treatment systems and methods26 Feb 2026US 2026/0053991 A9DEKA Products Limited Partnership
- Combined extracorporeal and drug delivery system and method29 Jan 2026US 2026/0027272 A1Baxter Healthcare S. A.
- Syringe-free blood return22 Jan 2026US 2026/0021232 A1Fresenius Medical Care Deutschland GmbH
Most cited
By later US patents
- Prepackaged fluid processing module having pump and valve elements operable in response to applied pressures458US 4,479,762 ABaxter Travenol Laboratories, Inc. · 1984
- Extracorporeal circulation apparatus437US 4,828,543 A1989
- Integrated cassette for controlling fluid having an integral filter430US 6,491,656 B1Therakos, Inc. · 2002
- Thrombectomy treatment system and method422US 6,719,717 B1Advanced Research and Technology Institute, Inc. · 2004
- Extracorporeal blood processing methods and apparatus403US 6,200,287 B1Gambro AB · 2001