发明授权
- 专利标题: Programmable multi-mode cardiac pacemaker
- 专利标题(中): 可编程多模心脏起搏器
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申请号: US405711申请日: 1982-08-05
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公开(公告)号: US4562841A公开(公告)日: 1986-01-07
- 发明人: Brian P. Brockway , Robert D. Dreher , Daniel E. Huntwork , Brock S. Lindstedt , Douglas C. Morrison , Perry A. Mills
- 申请人: Brian P. Brockway , Robert D. Dreher , Daniel E. Huntwork , Brock S. Lindstedt , Douglas C. Morrison , Perry A. Mills
- 申请人地址: MN St. Paul
- 专利权人: Cardiac Pacemakers, Inc.
- 当前专利权人: Cardiac Pacemakers, Inc.
- 当前专利权人地址: MN St. Paul
- 主分类号: A61N1/362
- IPC分类号: A61N1/362 ; A61N1/368 ; A61N1/372 ; A61N1/36
摘要:
A programmable cardiac pacemaker that is selectively programmable via a radio frequency communications link into one of a plurality of a single and dual chamber pacing modes. Depending upon the mode selected, an associated plurality of pacing parameters may be programmed, each within a predetermined range of possible magnitudes.The pacemaker includes a rate smoothing function for preventing the rate interval from changing by more than a predetermined percentage on a cycle-to-cycle basis; and a graceful degradation function for causing the ventricular pacing rate to decay when the atrial rate exceeds a programmed upper rate limit for a predetermined length of time. A graceful degration onset time and rate of decay are also programmable. Additionally, the pacemaker contains a set of pre-programmed alternative pacing parameters for at least one mode and which can be independently reverted to.The pacemaker control circuitry is organized about a central bus into an I/O controller and a pacing controller. Pacing control is continuous and its I/O communications operate on a prioritized basis. I/O control permits the programming of any register and the interrogation of a variety of analog parameters associated therewith.
公开/授权文献
- US5644436A Concentric optical system 公开/授权日:1997-07-01