CLOSURE DETERMINATION DEVICE

• Main Author: OSADA KAZUHIRO
• Format: Patent
• Language: English; Japanese
• Published: 20.04.2023
• Subjects: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

To provide a small-sized inexpensive closure determination device that is hardly affected by static electricity.SOLUTION: A closure determination device 50A includes: a pressure sensitive conductive rubber 80 disposed on one side of a lateral surface of a tube 21a; a pressing part 63 for pressing a region shorter than the pressure sensitive conductive rubber 80, facing the pressure sensitive conductive rubber 80 on the other side of the tube 21a; a first terminal 81 and a second terminal 82 provided on an opposed part 80A opposed to the pressing part 63 in the pressure sensitive conductive rubber 80; a third terminal 83 provided in a non-opposed part 80B that is not opposed to the pressing part 63; a voltage detection part 66 having a voltage sensor 90 for measuring a first output voltage Vout1 corresponding to a first voltage V1 between the first terminal 81 and the second terminal 82, and a second output voltage Vout2 corresponding to a second voltage V2 between the second terminal 82 and the third terminal 83, and a closure determination part 511 for determining a state of closure of the tube 21a on the basis of an amount of change in the first output voltage Vout1 and the second output voltage Vout2.SELECTED DRAWING: Figure 4 【課題】小型、安価且つ静電気の影響を受けにくい閉塞判定装置を提供する。【解決手段】閉塞判定装置５０Ａは、チューブ２１ａの側面の一側に配置された感圧導電性ゴム８０と、チューブ２１ａの他側における、感圧導電性ゴム８０と対向する感圧導電性ゴム８０よりも短い領域を押圧する押圧部６３と、感圧導電性ゴム８０における、押圧部６３と対向する対向部８０Ａに設けられた第１端子８１及び第２端子８２と、押圧部６３と対向していない非対向部８０Ｂに設けられた第３端子８３と、第１端子８１と第２端子８２との間の第１電圧Ｖ１に対応する第１出力電圧Ｖｏｕｔ１及び、第２端子８２と第３端子８３との間の第２電圧Ｖ２に対応する第２出力電圧Ｖｏｕｔ２を測定する電圧センサ９０と、を備える電圧検出部６６、及び、第１出力電圧Ｖｏｕｔ１及び第２出力電圧Ｖｏｕｔ２の変化量をもとに、チューブ２１ａの閉塞状態を判定する閉塞判定部５１１を具備する。【選択図】図４