Patent ID: 11963807
Assignee: LIGHTPOINT SURGICAL LTD
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 19:
20. A method for producing the tethered laparoscopic probe according to claim 19, the tethered laparoscopic probe being operable for deployment through a trocar into a cavity of a subject, the method comprising:
selecting a radiation shielding thickness and a scintillator radius, based on a known diameter of a trocar and known radiation properties of a radiopharmaceutical when administered to the subject, such that in use the ratio of the gamma radiation permeating through the radiation shielding that is detected by the gamma radiation detector to the gamma radiation incident on the radiation shielding is less than or equal to 1:1000;
providing an elongate casing, the elongate casing having a diameter suitable for insertion through the trocar, the casing comprising radiation shielding of the selected radiation shielding thickness;
arranging, within the casing, a gamma radiation detector comprising: a scintillator having the selected scintillator radius, the scintillator configured to scintillate, in use, in response to received gamma radiation; and a photodetector to detect the scintillated light from the scintillator; and
coupling a tether to the probe head.