Apparatus and method for determining physiologic...

Details Apparatus and method for determining physiologic... Apparatus and method for determining physiologic...

A - Human Necessities

61

B

A61B 5/107 (2006.01) A61B 5/0215 (2006.01)

Patent

CA 2130255

A system includes a catheter (10) having a low pressure balloon (42) at 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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