Characteristics of intraluminal pressure sensing balloons of different materials
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The physical properties of the balloons made of some polymeric substances were studied. The polyurethanes provided high frequency characteristics but air-leaking disqualified except ECD-651 which was most satisfactory: low permeability and ease of fabrication. Saran was proper but troublesome in making the balloon. Polypropylene and polyethylene, available in film, required heat sealing, which resulted in deformity and low frequency characteristics.
Key wordsFrequency characteristics Phase lag Intraluminal pressure Polyurethanes ECD
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