US 12,220,116 B2
Blood vessel harvesting system
Tsukasa Ikeda, Tokyo (JP)
Assigned to Teikyo University, Tokyo (JP)
Appl. No. 17/299,550
Filed by Teikyo University, Tokyo (JP)
PCT Filed Dec. 17, 2019, PCT No. PCT/JP2019/049296
§ 371(c)(1), (2) Date Jun. 3, 2021,
PCT Pub. No. WO2020/129943, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 2018-237433 (JP), filed on Dec. 19, 2018.
Prior Publication US 2022/0054116 A1, Feb. 24, 2022
Int. Cl. A61B 17/00 (2006.01); A61B 1/00 (2006.01); A61B 1/018 (2006.01); A61B 1/313 (2006.01); A61B 90/00 (2016.01)
CPC A61B 17/00008 (2013.01) [A61B 1/0005 (2013.01); A61B 1/018 (2013.01); A61B 1/3137 (2013.01); A61B 90/37 (2016.02); A61B 2017/00969 (2013.01); A61B 2090/3784 (2016.02)] 5 Claims
OG exemplary drawing
 
1. A blood vessel harvesting system configured to harvest a blood vessel in a state of being covered with a surrounding tissue, the blood vessel harvesting system comprising:
a separating device; and
a display device,
wherein the separating device includes
a rod portion configured to be inserted into a living body,
an optically transparent taper-shaped separating portion configured to be disposed at a distal end part of the rod portion,
an endoscope portion configured to be disposed inside the rod portion, and capture an endoscope image of an interior of the living body via the separating portion, and
an ultrasound transceiver portion configured to be disposed on an outer peripheral surface of the rod portion, irradiate the interior of the living body with an ultrasonic wave, and receive a reflected wave from the interior of the living body,
the display device includes a display screen on which the endoscope image and an ultrasound image generated based on the reflected wave received by the ultrasound transceiver portion are displayed,
the display device matches a scale of the endoscope image with a scale of an ultrasound image and simultaneously displays the endoscope image and the ultrasound image side by side on the display screen, and
the display device disposes the endoscope image and the ultrasound image on the display screen in a manner that a point in the endoscope image indicating a predetermined position in the living body matches a point in the ultrasound image indicating the predetermined position on the display screen,
wherein the ultrasound transceiver portion irradiates a side of the separating portion with respect to a normal line of the outer peripheral surface extending from the ultrasound transceiver portion with the ultrasonic wave, and
wherein the display device displays an arc-shaped line having a radius of a predetermined size centered on a blood vessel in the ultrasound image in the endoscope image as a separating position guideline.