Method and apparatus for peripheral vein fluid removal in heart failure
US7311689B2 · kind B2 · utility
54Cited by
24References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2003 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/7563
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for ultrafiltration of blood operating by removing blood from a peripheral blood vessel at a rate of less than two percent of total cardiac output of a patient, extracting fluid at a rate of 0.1 liter to 1.0 liters per hour while retaining cells and proteins in the blood, and returning the concentrated blood to a secondary blood vessel is disclosed. Blood is removed and returned using small gage needles. As a pump circulates blood from the patient, a filter removes ultrafiltrate from the blood using duty cycle or pump control, and a transparent container collects the removed fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.