US 12,484,928 B2
Medical device
Junichi Kobayashi, Cupertino, CA (US); and Yuichi Tada, Santa Clara, CA (US)
Assigned to TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed by TERUMO KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jul. 28, 2022, as Appl. No. 17/876,441.
Application 17/876,441 is a continuation of application No. PCT/JP2020/014690, filed on Mar. 30, 2020.
Prior Publication US 2022/0361913 A1, Nov. 17, 2022
Int. Cl. A61B 17/3207 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/320758 (2013.01) [A61B 2017/00022 (2013.01); A61B 2017/00539 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A medical device for removing an object in a body cavity, comprising:
a rotatable drive shaft having a lumen;
a cutter disposed at a distal portion of the drive shaft and by which the object is cut;
a drive shaft driving source configured to rotate the drive shaft;
a fluid driving source configured to move a fluid from a distal side to a proximal side of the lumen;
a first sensor configured to measure a flow rate of the fluid in the lumen;
a switch; and
a controller configured to:
in response to the switch being turned on, control the fluid driving source to begin moving the fluid, and
control the drive shaft driving source to begin rotating the drive shaft at least a first predetermined amount of time after the switch is turned on and after the flow rate measured by the first sensor has reached a set value.