System for locating and detecting a source of photon emissions

Details System for locating and detecting a source of photon emissions System for locating and detecting a source of photon emissions

1997-10-04

1999-07-27

Smith, Ruth S.

Surgery

Diagnostic testing

Detecting nuclear, electromagnetic, or ultrasonic radiation

2503361, 25037001, A61B 600

Patent

active

059281502

ABSTRACT:
System for detecting emissions from a radiopharmaceutical injected within a lymph duct wherein a hand-held probe is utilized. When employed to locate sentinel lymph nodes, supplementary features are provided including a function for treating validated photon event pulses to determine count rate level signals. A function for count rate based ranging as well as an adjustable thresholding feature are also present. A post-threshold amplification circuit develops full-scale aural and visual outputs.

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