发明名称 |
ELECTRONICALLY MONITORED ANGIOPLASTY SYSTEM. |
摘要 |
An electronically monitored angioplasty system is provided with a verifier circuit to verify the operation of conversion circuitry for converting an electrical pressure signal from a pressure transducer to a displayed numerical value on a digital read-out. The verifier circuit is selectively activated to offset the displayed numerical value by a predetermined amount and upon deactivation the displayed numerical value returns to the pressure sensed by the pressure transducer in the balloon. In one embodiment, a reference signal to the conversion circuitry is selectively offset by a signal corresponding to the predetermined amount and in another embodiment the electrical pressure signal itself is selectively offset by a reference signal corresponding to the predetermined amount. In another aspect of the system, an audible balloon deflation indicator circuit sounds a pleasant signal that the pressure within the balloon has fallen below a threshold pressure so the doctor need not divert attention from the patient. |
申请公布号 |
EP0655931(A1) |
申请公布日期 |
1995.06.07 |
申请号 |
EP19930916716 |
申请日期 |
1993.06.23 |
申请人 |
MEDEX, INC. |
发明人 |
NICHOLSON, WARREN, B.;PFOUTS, MARK, D.;DELONG, RUSSELL, I. |
分类号 |
A61M25/00;A61F2/958 |
主分类号 |
A61M25/00 |
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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