Surgery – Truss – Pad
Patent
1985-04-01
1987-04-28
Howell, Kyle L.
Surgery
Truss
Pad
128663, A61B 1000
Patent
active
046605649
ABSTRACT:
The invention relates to apparatus which co-operate with an ultrasonic scanner. The apparatus includes a line dataprocessor which takes control of the activation of the ultrasonic crystals in the scanner head such that between each ultrasonic crystal activation for a viewing line on the image screen of the ultrasonic scanner a sequential activation takes place of two or three crystals or crystal groups each representing a respective measuring line. A marker is placed for each measuring line in a selected part-structure, such as a vessel, presented on the image screen, Echo-tracking dataprocessors seek the boundaries for the vessel along the measuring lines and lock onto these boundaries. A result dataprocessor computes continuously the changes in the vessel boundaries and calculates pulsewave diagrams for the vessel at the selected measuring lines and presents these diagrams on a presentation unit. The pulse-wave velocity in the vessel can be calculated on the basis of the resultant pulswave diagrams, as can also the amplitude for the pressure pulse and the elasticity conditions in and around the vessel walls.
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Benthin Morten
Dahl Philip I.
Gennser Gerhard M.
Lindstrom Kjell O. T.
Howell Kyle L.
Jaworski Francis J.
Teltec Electronic Equipment AB
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