发明名称 |
Cardiac pacemaker with automatic adaptation of pacing rate to cardiac output |
摘要 |
A pacemaker has a pulse generator for delivering stimulation pulses to a patient's heart, a sensor for measuring a parameter related to cardiac output, and a control unit for controlling the delivery of stimulation pulses from the pulse generator. The control unit includes an altering unit for altering at least one of the VV delay between consecutive stimulation pulses to the right and left ventricles and the AA delay between consecutive stimulation pulses to the right and left atria. The sensor measures the parameter in various time windows within a time of operation of predetermined VV- or AA-delay values. A determining unit includes a calculation unit for calculating an average value of the measured parameter during each of said time windows and the determining unit uses these average values to determine which one of the VV- and/or AA-delay values results in a higher cardiac output.
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申请公布号 |
US6985772(B2) |
申请公布日期 |
2006.01.10 |
申请号 |
US20020267239 |
申请日期 |
2002.10.09 |
申请人 |
ST. JUDE MEDICAL AB |
发明人 |
HOLMSTROEM NILS;NOREN KJELL |
分类号 |
A61N1/368;A61N1/362;A61N1/365 |
主分类号 |
A61N1/368 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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