PNEUMOPERITONEUM APPARATUS

WIPO Patent Application WO/2019/207880

A1

This pneumoperitoneum apparatus comprises: a gas supply tube 15 which communicates with a gas supply source 11 for supplying a predetermined gas, and supplies the gas to a body cavity of a patient 12; a proportional control valve 4 which is provided on the gas supply tube 15 and controls the opening and closing of the gas supply tube 15; a current detection unit 62 for detecting the current value of current flowing through the proportional control valve 4; a resistance computation unit 63 for calculating the resistance value of the proportional control valve 4 on the basis of the current value; a PWM drive unit 65 for adjusting the drive voltage supplied to the proportional control valve 4 by PWM control to adjust the opening degree of the proportional control valve 4 in a stepwise manner; and a PWM control unit 64 for determining a duty ratio which the PWM drive unit 65 uses on the basis of the resistance value and a target gas supply rate of the gas supplied to the body cavity.

WO/2013/039516	ENDOSCOPIC HOOK BLADE AND USE THEREOF
WO/2022/271482	DETACHABLE MEDICAL DEVICES, COMPONENTS, AND METHODS OF USE THEREOF
JP6072371	Medical implements and a medical system

UESUGI TAKEFUMI (JP)
YAMAOKA KOJI
KASUYA YUMA
TORII SHINYA
KIMURA KEITA
HIRAGA KUNITOSHI

PCT/JP2019/003127

October 31, 2019

January 30, 2019

Click for automatic bibliography generation  

OLYMPUS CORP (JP)

A61B17/94; A61B1/015; F16K31/06

JP2016052478A	2016-04-14
JP2000139828A	2000-05-23
JPH11342108A	1999-12-14

ITOH-SHIN PATENT OFFICE (JP)

View/Download PDF      PDF Help

Previous Patent: ELECTRIC VEHICLE

Next Patent: FAULT DIAGNOSTIC DEVICE, FAULT DIAGNOSTIC METHOD, AND MACHINE WHERETO FAULT DIAGNOSTIC DEVICE IS APP...