US 11,963,807 B2
Tethered laparoscopic probe
David Tuch, Chesham (GB); Kunal Vyas, Chesham (GB); Stewart Forbes, Chesham (GB); Gavin Ryan, Chesham (GB); and Phil Marsden, Chesham (GB)
Assigned to Lightpoint Surgical Ltd., Amersham (GB)
Filed by LIGHTPOINT MEDICAL, LTD, Chesham (GB)
Filed on Aug. 5, 2020, as Appl. No. 16/986,121.
Application 16/986,121 is a continuation of application No. PCT/GB2019/050305, filed on Feb. 13, 2019.
Claims priority of application No. 1801926 (GB), filed on Feb. 6, 2018.
Prior Publication US 2020/0367841 A1, Nov. 26, 2020
Prior Publication US 2021/0361247 A9, Nov. 25, 2021
Int. Cl. A61B 6/00 (2006.01); A61B 1/00 (2006.01); A61B 1/313 (2006.01); A61B 6/10 (2006.01); A61B 6/40 (2024.01); A61B 6/42 (2024.01); G01T 1/20 (2006.01); G01T 1/24 (2006.01)
CPC A61B 6/4057 (2013.01) [A61B 1/00114 (2013.01); A61B 1/00124 (2013.01); A61B 1/3132 (2013.01); A61B 6/107 (2013.01); A61B 6/425 (2013.01); A61B 6/4258 (2013.01); G01T 1/2018 (2013.01); G01T 1/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tethered laparoscopic probe for deployment through a trocar into a cavity of a subject to detect gamma radiation from a radiopharmaceutical administered to the subject, the tethered laparoscopic probe comprising:
a probe head shaped for insertion through the trocar and configured to be freely moveable within the cavity, the probe head comprising:
an elongate casing comprising radiation shielding for inhibiting gamma radiation from passing through the probe head, the radiation shielding having a detection aperture for admitting gamma radiation;
a gamma radiation detector arranged within the casing, the gamma radiation detector configured to detect gamma radiation through the detection aperture of the casing; and
a tether coupled to the probe head and for, in use, tethering the probe head through the trocar, wherein the tether comprises a cable for communicating a signal from the gamma radiation detector from the head, and the radiation shielding comprises a tortuous path for an electrical connection through the radiation shielding to the cable to facilitate localization of a source of radiation from the radiopharmaceutical within the cavity.