System for locating and detecting a source of photon emissions
US5928150A · kind A · utility
68Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 4, 1997 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Oct 4, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/4258
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.