NDLI: Non-invasive method and apparatus for measuring pressure within a pliable vessel

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Non-invasive method and apparatus for measuring pressure within a pliable vessel

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1983
Description	A non-invasive method and apparatus is disclosed for measuring pressure within a pliable vessel such as a blood vessel. The blood vessel is clamped by means of a clamping structure having a first portion housing a pressure sensor and a second portion extending over the remote side of the blood vessel for pressing the blood vessel into engagement with the pressure sensing device. The pressure sensing device includes a flat deflectable diaphragm portion arranged to engage a portion of the blood vessel flattened against the diaphragm by means of the clamp structure. In one embodiment, the clamp structure includes first and second semicylindrical members held together by retaining rings. In a second embodiment the clamp structure is of one piece construction having a solid semicylindrical portion and a hollow semicylindrical portion with a longitudinal slot in the follow semicylindrical portion through which a slip the blood vessel. In a third embodiment, an elastic strap is employed for clamping the blood vessel against the pressure sensing device.
File Size	1787501
Page Count	15
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19830021720
Archival Resource Key	ark:/13960/t2h757v88
Language	English
Publisher Date	1983-02-10
Access Restriction	Open
Subject Keyword	Aerospace Medicine Blood Vessels Mechanical Devices Diaphragms Mechanics Pressure Measurement Measuring Instruments Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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