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Home > SURGEOGUIDE II

 Gamma probe system: SURGEOGUIDE II model

A gamma probe is a handheld device used for intraoperative use following interstitial injection of a radionuclide, to locate regional lymph nodes by their radioactivity. It is used primarily for sentinel lymph node mapping and parathyroid surgery. Radionuclides which uses usually are Tc-99m, I-131 & F-18. Gamma probes can also be used in open surgery, laparoscopy and theroscopy (inside the body), and can be used externally (outside the body). Most use of gamma probes is in Sentinel Lymph Node Biopsy (SLNB) and Radio-Guided Occult Lesion Localization (ROLL). But these systems can be used in all cases where the detection of small points with high activity distribution, high sensitivity and resolution is desired.
 
Clinical applications:
Breast cancer
Gynecological cancers (cervical, ovarian, uterine, vaginal and vulvar)
Melanoma and other types of skin tumors
Head & Neck
Endocrine cancers (thyroid, parathyroid)
Urology cancers (prostate, bladder, testicular, kidney and penile)
Nuclear Medicine (localization of gamma labeled areas)
 
 
Probe specifications:
Three types of Probes: Large Tip, Small Tip, Endoscopic 
Length: 21 cm
Tip Diameter: 16 mm (Large), 11 mm (Small), 10 mm (Endoscopic)
Stainless Steel Body , Tungsten  Collimator
Crystal: CsI(Tl)
  
NEMA-NU3 standard test results:
 • Sensitivity: ~2K cps/MBq @ 3 cm
Shielding Efficiency: 99.6 % for Tc-99m
Energy Resolution: <11% FWHM for Tc-99m
Angular Resolution:  30˚, 45˚, 95˚ (optional)
Local Resolution: <40 mm FWHM at 5 cm distance (For Large Probe)
 
System Specifications:
5 digit display
Linear bar graph
Sound modulated with count rate
Scale select volume
Isotope select volume
Beep/FM sound
12 DC – 40W Adapter
 
Environment Requirements:
One phase 220 volt Power (for adaptor input)
Dimensions: 22 × 25 × 22 (depth × height × width)
Weight: 3Kg
Temperature range: 15° - 35°C