Apparatus and method for determining physiologic characteristics

Details Apparatus and method for determining physiologic characteristics Apparatus and method for determining physiologic characteristics

1992-01-15

1994-01-04

Cohen, Lee S.

Surgery

Truss

Pad

128748, 604 97, 604 99, 604101, A61M 2900

Patent

active

052751694

ABSTRACT:
A system includes a catheter (10) having a low pressure balloon (42) at of one end thereof, a precise, low pressure, low volume fluid infusion means (41) and a pressure sensor (43). The balloon (42) is introduced to a body lumen, such as a blood vessel, and inflated to a pressure at or just above physiologic, typically being below 200 mmhg. From the balloon volume at a particular pressure, the internal cross-sectional area and diameter of the vessel can be calculated. Additional calculations can be made at other pressures below 200 mmhg to determine compliance of the vessel.

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