Ultrasonic marker for physiologic diagnosis and method of using

Details Ultrasonic marker for physiologic diagnosis and method of using Ultrasonic marker for physiologic diagnosis and method of using

1980-07-07

1983-02-15

Howell, Kyle L.

Surgery

Truss

Pad

128661, 128663, A61B 1000

Patent

active

043735320

ABSTRACT:
For non-invasive diagnosis of conditions subsequent to a medical operative procedure, at the time of operation a "target" is sutured to tissue. Later, by use of an ultrasonic imaging system or other diagnostic instrument, the location of the target can be accurately determined. Thereupon, non-invasive techniques may be used in the target area to determine changes in physiology subsequent to implanting the target. For example, a target consisting of a fused array of small stainless steel balls is sutured to a coronary artery bypass graft. Later, to determine if the bypass graft is patent, by ultrasonic methods the location of the target and hence the bypass graft is determined. Then, using a Doppler-effect flowmeter, flow through the bypass graft may be measured and compared with prior measurements. The marking technique is also believed to be useful in postoperative determination of tumor growth at the locus of said marker.

REFERENCES:
patent: 4010759 (1977-03-01), Baer

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