Electronically monitored angioplasty system

Details Electronically monitored angioplasty system Electronically monitored angioplasty system

A - Human Necessities

61

M

A61M 29/02 (2006.01) A61M 25/10 (2006.01)

Patent

CA 2140338

An electronically monitored angioplasty sys- tem (10) is provided with a verifier circuit (60, 72) to verify the operation of conversion circuitry (28, 28', 28") for converting an electrical pressure signal from a pressure transducer (22) to a displayed nu- merical value on a digital read-out (32). The verifier circuit is selectively activated to offset the displayed numerical value by a predetermined amount and upon deactivation the displayed numerical value re- turns to the pressure sensed by the pressure trans- ducer in the balloon (16). In one embodiment, a reference signal to the conversion circuitry is selec- tively offset by a signal corresponding to the prede- termined amount and in another embodiment the electrical pressure signal itself is selectively offset by a reference signal corresponding to the predeter- mined amount. In another aspect of the system, an audible balloon deflation indicator circuit (140) sounds a pleasant signal that the balloon is fully deflated so the doctor need not divert attention from the patient.

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