Dynamic vascular compliance tester

Details Dynamic vascular compliance tester Dynamic vascular compliance tester

1990-01-23

1990-11-27

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73 375, G01N 300

Patent

active

049727214

ABSTRACT:
A dynamic vascular compliance tester (change in radius with change in pressure) comprises an oscillatorily driven bellows to simulate pulsing a fluid pressure within a test specimen and a method of use thereof. The tester includes a high frequency pressure transducer and a pair of linear voltage-to-displacement transducers ("LVDT") providing outputs that are utilized cooperatively to determine the compliance of a test specimen. A first LVDT measures the volume of fluid in each pulse provided by the bellows and a second LVDT measures the change in length of the test specimen during the pulse. The tester also includes an offset drive mechanism that is operably adjustable such that the volume of fluid passing into the test specimen can be altered as desired.

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