发明授权
US07311689B2 Method and apparatus for peripheral vein fluid removal in heart failure
有权
心力衰竭中外周静脉血液清除的方法和装置
- 专利标题: Method and apparatus for peripheral vein fluid removal in heart failure
- 专利标题(中): 心力衰竭中外周静脉血液清除的方法和装置
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申请号: US10642638申请日: 2003-08-19
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公开(公告)号: US07311689B2公开(公告)日: 2007-12-25
- 发明人: Howard R. Levin , Mark Gelfand , John O'Mahony , Hans-Dietrich Polaschegg
- 申请人: Howard R. Levin , Mark Gelfand , John O'Mahony , Hans-Dietrich Polaschegg
- 申请人地址: US NY New York
- 专利权人: CHF Solutions, Inc.
- 当前专利权人: CHF Solutions, Inc.
- 当前专利权人地址: US NY New York
- 代理机构: Nixon & Vanderhye P.C.
- 主分类号: A67M37/00
- IPC分类号: A67M37/00 ; C02F1/44
摘要:
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.