A61M 1/3658
Indicating the amount of purified blood recirculating in the fistula or shunt
Official title: {Indicating the amount of purified blood recirculating in the fistula or shunt}
A61M1/3658 (Indicating the amount of purified blood recirculating in the fistula or shunt) appears on 91 US grants and 75 published applications in this corpus.
Search patents in A61M- Granted patents
- 91
- Published applications
- 75
- Assignees
- 37
- Inventors
- 104
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 1 |
| 2003 | 6 | 5 |
| 2004 | 4 | 3 |
| 2005 | 2 | 6 |
| 2006 | 2 | 5 |
| 2007 | 2 | 1 |
| 2008 | 2 | 4 |
| 2009 | 5 | 4 |
| 2010 | 3 | 4 |
| 2011 | 4 | 3 |
| 2012 | 4 | 4 |
| 2013 | 2 | 3 |
| 2014 | 4 | 7 |
| 2015 | 3 | 2 |
| 2016 | 5 | 3 |
| 2017 | 3 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 3 |
| 2020 | 0 | 5 |
| 2021 | 3 | 1 |
| 2022 | 4 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 4 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring recirculation23 Dec 2025US 12,502,471 B2Bellco SRL
- Monitoring device for recirculation analysis2 Sep 2025US 12,403,228 B2B. Braun Avitum AG
- Blood purification apparatus6 Aug 2024US 12,053,568 B2Nikkiso Co., Ltd.
- Measuring access flow rate by use of blood treatment machine28 May 2024US 11,992,589 B2Gambro Lundia AB
- Device for an extracorporeal blood treatment, and method for determining a hemodynamic parameter during an extracorporeal blood treatment7 Mar 2023US 11,596,725 B2Fresenius Medical Care Deutschland GmbH
- Monitoring recirculation19 Mar 2026US 2026/0077112 A1Bellco SRL
- Extracorporeal blood treatment machine, computer-implemented detection method, and computer program22 Jan 2026US 2026/0021229 A1
- Measurement of recirculation by means of two interim switches having kinetically different diffusion states13 Mar 2025US 2025/0082833 A1
- Device for providing dialysis information and program for providing dialysis information28 Nov 2024US 2024/0390564 A1National University Corporation Shizuoka University
- Method and system for automatically characterizing a vascular access of a dialysis patient26 Sep 2024US 2024/0316255 A1
Most cited
By later US patents
- Multiple lumen catheter for hemodialysis309US 5,405,320 AThe Curators of the University of Missouri · 1995
- Multiple lumen catheter for hemodialysis292US 5,209,723 AThe Curators of the University of Missouri · 1993
- Multiple lumen catheter for hemodialysis292US 5,509,897 AThe Curators of the University of Missouri · 1996
- Cardiovascular measurements by sound velocity dilution206US 5,453,576 ATransonic Systems, Inc. · 1995
- Clot resistant multiple lumen catheter and method194US 5,569,182 AThe Curators of the University of Missouri · 1996