Passive ultrasound needle probe locator

Details Passive ultrasound needle probe locator Passive ultrasound needle probe locator

1982-01-07

1984-02-14

Howell, Kyle L.

Surgery

Truss

Pad

128 24A, A61B 1000

Patent

active

044310064

ABSTRACT:
A solid steel stylet is carried coaxially within a hollow biopsy needle. The stylet carries a matching layer at its tip, such that when the needle and stylet are inserted into the body, ultrasound energy impinging on the needle tip is converted to pressure waves which are conveyed back up the stylet. An ultrasound transducer located outside the body is coupled to receive sonic energy from the stylet, and to convert it to electrical energy for coordination with, and superposition upon the image of the system.

REFERENCES:
patent: 3556079 (1971-01-01), Omizo
patent: 3721227 (1973-03-01), Larson et al.
patent: 3896811 (1975-07-01), Storz
patent: 4029084 (1977-06-01), Soldner
patent: 4058114 (1977-11-01), Soldner
patent: 4108165 (1978-08-01), Kopp et al.
patent: 4249539 (1981-02-01), Vilkomerson
patent: 4330278 (1982-05-01), Martin
Time, Oct. 2, 1964, p. 96, "Surgery, Into the Eye with Ultrasound."

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