发明公开
- 专利标题： METHOD AND APPARATUS FOR CREATING PULSATILE FLOW IN A CARDIOPULMONARY BYPASS CIRCUIT
- 专利标题（中）： 方法和装置脉动流IN A心肺旁路电路
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申请号： EP97917701.0申请日： 1997-03-31
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公开(公告)号： EP0959915A1公开(公告)日： 1999-12-01
- 发明人: PLOTKIN, Neil, D.
- 申请人： MEDTRONIC, INC.
- 申请人地址： 7000 Central Avenue N.E. Minneapolis, Minnesota 55432 US
- 专利权人： MEDTRONIC, INC.
- 当前专利权人： MEDTRONIC, INC.
- 当前专利权人地址： 7000 Central Avenue N.E. Minneapolis, Minnesota 55432 US
- 代理机构： Hughes, Andrea Michelle, et al
- 优先权： US19960644635 19960430
- 国际公布： WO1997040867 19971106
- 主分类号： A61M1
- IPC分类号： A61M1
摘要：
Pulsatile cardiopulmonary flow closely approximating a natural heartbeat is generated in a heart-lung machine by using a proportioning valve (38) to partly convey blood in the machine's cardiopulmonary circuit to the arterial supply line (32), and to partly recycle that blood into the cardiopulmonary circuit upstream (48) of the arterial pump. The relative proportions of conveying and recycling are varied in accordance with a waveform approximating the waveform of a human heartbeat.
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