SENSEI® is a flexible laparoscopic gamma probe under development for sentinel lymph node biopsy and cancer metastasis detection in robotic, laparoscopic, and open surgery.

The probe is designed for real-time detection of SPECT radioligands such as 99mTc-nanocolloid for sentinel lymph node biopsy or 99mTc-PSMA (Prostate Specific Membrane Antigen) for prostate cancer detection.


  • Unprecedented agility – With wristed articulation, multiple grip orientations, and a compact length, SENSEI® provides unprecedented agility and anatomic access for minimally-invasive surgery.
  • Excellent performance – Best-in class background rejection  (>99.97%) provides excellent signal detection. Field-of-View optimized for robotic laparoscopic surgery
  • Intuitive interface – Comprehensive visual and audio feedback with a customizable interface.
  • Ease-of-use – Sterile single-use probe gives the surgeon complete control from the sterile field. Eliminates the need for resterilization. Designed for the da Vinci ProGrasp® and all other major surgical graspers.


Usability and technical feasibility evaluation of a tethered laparoscopic gamma probe for radioguided surgery in prostate cancer: a pelvic phantom and porcine model study. J Urol. 2019 Apr;201(Suppl 4):e284 J Urol. 2019 Apr;201(Suppl 4):e284.

SENSEI® is for investigational use only and has not been granted CE Mark nor FDA clearance.