ENDOSCOPE APPARATUS AND FLUID FEEDING METHOD USING ENDOSCOPE APPARATUS

• Main Authors: YAMANASHI MOMOKO, HINO KAZUHIKO
• Format: Patent
• Language: English; Japanese
• Published: 26.07.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

To provide an endoscope apparatus equipped with a constitution of removing filthy matters in a short period of time with a small amount of a supplied fluid while keeping a distal end diameter of an insertion part without increasing dimensions.SOLUTION: An endoscope apparatus includes: an insertion part 5; a liquid feeding device 51 for distributing a liquid R to a first flow passage 11; a gas feeding device 52 for distributing a gas A to a second flow passage 12; a third flow passage 13; a joining part G where the gas A distributed to the second flow passage 12 is distributed to the liquid R distributed to the first flow passage 11 while timing when the gas A and the liquid R are brought into a not-mixed state occurs intermittently; a control part 53 for controlling an operation so that the liquid R and the gas A are alternately distributed to the liquid feeding device 51 and the gas feeding device 52 in the third flow passage 13 through the joining part G; and a distal end part 2 having an opening 13k for emitting the liquid R and the gas A alternately distributed to the third flow passage 13 in a direction along a longitudinal direction N of the inside of a subject.SELECTED DRAWING: Figure 1 【課題】大型化することなく、かつ挿入部の先端径を維持したまま、短時間かつ供給する流体量を少なくして汚物を除去することができる構成を具備する内視鏡装置を提供する。【解決手段】挿入部５と、第１の流路１１に液体Ｒを流通させる送液装置５１と、第２の流路１２に気体Ａを流通させる送気装置５２と、第３の流路１３と、第１の流路１１に流通された液体Ｒに対して、第２の流路１２に流通された気体Ａが液体Ｒと非混合状態となるタイミングを間欠的に有して流通される合流部Ｇと、送液装置５１と送気装置５２とに対し、第３の流路１３において液体Ｒと気体Ａとが合流部Ｇを介して交互に流通するよう動作制御する制御部５３と、第３の流路１３に対して交互に流通された液体Ｒ及び気体Ａを、被検体内の長手方向Ｎに沿った方向に向けて射出する開口１３ｋを有する先端部２と、を具備する。【選択図】図１