# US 12,594,093 B2 · Medical device control apparatus and medical device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,093 B2 - Document ID: US12594093B2 - Status: Granted - Kind: B2 - Application number: 18/160,230 - Filed: 2023-01-26 - Published: 2023-08-03 - Granted: 2026-04-07 - Earliest claimed: 2022-01-28 - Assignees: Terumo Kabushiki Kaisha - Applicants: Terumo Kabushiki Kaisha - Inventors: Yuichi Tada; Yoichiro Kuwano - Web page: https://patentgrep.com/patent/US12594093B2 ## CPC - A61B 17/320758: {with a rotating cutting instrument, e.g. motor driven (A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002)} - A61B 90/06: {Measuring instruments not otherwise provided for} - A61B 17/32002: {with continuously rotating, oscillating or reciprocating cutting instruments} - A61B 2017/00022: {Sensing or detecting at the treatment site} - A61B 2017/00075: {Motion} - A61B 2017/00084: {Temperature} - A61B 2017/00115: {with audible or visual output} - A61B 2017/00119: {alarm; indicating an abnormal situation} - A61B 2017/00398: {using powered actuators, e.g. stepper motors, solenoids} - A61B 2017/22039: {eccentric} - A61B 2217/005: with suction drainage system - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract A medical device control apparatus for controlling a medical device configured to remove an object in a body cavity with a cutter that is rotatable via a rotatable drive shaft, includes a first motor configured to rotate the drive shaft, one or more sensors configured to detect a state of the first motor, and a controller configured to control the first motor to rotate the drive shaft based on the state of the first motor detected by the one or more sensors. ## Claims ### Claim 1 A medical device control apparatus for controlling a medical device configured to remove an object in a body cavity with a cutter that is rotatable via a rotatable drive shaft, the apparatus comprising: a first motor configured to rotate the drive shaft; one or more sensors configured to detect a state of the first motor; and a controller configured to control the first motor to rotate the drive shaft based on the state of the first motor detected by the one or more sensors, wherein the one or more sensors include a microphone disposed in a vicinity of the first motor and configured to collect a sound therefrom. ### Claim 2 (depends on 1) The medical device control apparatus according to claim 1, wherein the one or more sensors detect the state of the first motor in a non-contact manner. ### Claim 3 (depends on 1) The medical device control apparatus according to claim 1, wherein the one or more sensors include a temperature sensor configured to detect a temperature of the first motor. ### Claim 4 (depends on 1) The medical device control apparatus according to claim 1, wherein the one or more sensors include an optical sensor configured to detect a rotational frequency of the first motor. ### Claim 5 (depends on 1) The medical device control apparatus according to claim 1, further comprising: a second motor that drives one or more rollers to move the drive shaft along an axial direction thereof, and the controller is further configured to drive the second motor based on the state of the first motor. ### Claim 6 (depends on 5) The medical device control apparatus according to claim 5, wherein the controller controls the second motor to move the drive shaft towards a proximal side when the state of the first motor has not changed for a certain period of time, and then move the drive shaft towards a distal side after a certain period of time. ### Claim 7 (depends on 5) The medical device control apparatus according to claim 5, wherein the second motor is further configured to drive another roller to rotate an outer tube surrounding the drive shaft to change an orientation thereof. ### Claim 8 (depends on 5) The medical device control apparatus according to claim 5, further comprising: a first housing through which the drive shaft passes and in which the second motor is housed. ### Claim 9 (depends on 8) The medical device control apparatus according to claim 8, further comprising: a second housing in which the first motor, the one or more sensors, and the controller are housed, wherein a proximal end of the drive shaft is connected to the first motor in the second housing, and the first housing is between the cutter and the second housing. ### Claim 10 A medical device for removing an object in a body cavity, comprising: a rotatable drive shaft; a cutter attached to a distal end of the drive shaft and by which the object is cut; a first motor configured to rotate the drive shaft; one or more sensors configured to detect a state of the first motor; and a controller configured to issue a notification signal based on the state of the first motor detected by the one or more sensors, wherein the one or more sensors include a microphone disposed in a vicinity of the first motor and configured to collect a sound therefrom. ### Claim 11 (depends on 10) The medical device according to claim 10, further comprising: a handle portion in which the drive shaft is connected to the first motor and the one or more sensors are disposed. ### Claim 12 (depends on 11) The medical device according to claim 11, further comprising: one or more lamps along an outer surface of the handle portion and configured to emit light in response to the notification signal. ### Claim 13 (depends on 10) The medical device according to claim 10, wherein the one or more sensors include a temperature sensor configured to detect a temperature of the first motor. ### Claim 14 (depends on 13) The medical device according to claim 13, further comprising: an image sensor configured to acquire a cross-sectional image of a lesion area inside the body cavity; and a display configured to display the cross-sectional image of the lesion area acquired by the image sensor, wherein the one or more sensors include a camera configured to detect a luminance of the cross-sectional image of the lesion area displayed on the display, and the controller is further configured to use a machine learning model that has been trained to determine a cutting possibility of the lesion area corresponding to the sound collected by the microphone, the temperature detected by the temperature sensor, and the luminance of the cross-sectional image of the lesion area detected by the camera. ### Claim 15 A medical device for removing an object in a body cavity, comprising: a rotatable drive shaft; a cutter attached to a distal end of the drive shaft and by which the object is cut; a first motor configured to rotate the drive shaft; a microphone configured to collect a sound from the first motor; and a controller configured to control the first motor to rotate the drive shaft based on the sound collected by the microphone. ### Claim 16 (depends on 15) The medical device according to claim 15, further comprising: a temperature sensor configured to detect a temperature of the first motor, wherein the controller controls the first motor further based on the temperature detected by the temperature sensor. ### Claim 17 A medical device for removing an object in a body cavity, comprising: a rotatable drive shaft; a cutter attached to a distal end of the drive shaft and by which the object is cut; a first motor configured to rotate the drive shaft; a microphone configured to collect a sound from the cutter; and a controller configured to control the first motor to rotate the drive shaft based on the sound collected by the microphone. ### Claim 18 (depends on 17) The medical device according to claim 17, further comprising: a temperature sensor configured to detect a temperature of the first motor, wherein the controller controls the first motor further based on the temperature detected by the temperature sensor.