MEDICAL DEVICE

• Main Author: YOKOMIZO YUJI
• Format: Patent
• Language: English; Japanese
• Published: 09.08.2018
• 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; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

PROBLEM TO BE SOLVED: To provide a medical device capable of excellently acquiring an image in a living organism and suppressing undesirable flexion of a tubular part.SOLUTION: A medical device 1 which is inserted in an organism lumen and for acquiring image information has: a long sheath body 21; an ultrasonic vibrator 411 housed in a distal part of the sheath body 21; a holding part 412 holding the ultrasonic vibrator 411; a drive shaft 42 transmitting a mechanical drive force to the holding part 412; a distal side tube 22 which is arranged sideways of the distal part of the sheath body 21 and is provided with a first guide wire lumen 221; and a reinforcement part 24 arranged inside the distal part of the sheath body 21. The reinforcement part 24 is arranged nearer on the side adjacent to the distal side tube 22, and a part positioned nearer the distal side than a near part of the reinforcement part 24 and an ultrasonic vibrator 411 of the holding part 412 has a range overlapping in an axial direction of the sheath body 21.SELECTED DRAWING: Figure 2 【課題】生体内で画像を良好に取得でき、かつ管状部の望ましくない撓みを抑制できる医療デバイスを提供する。【解決手段】生体管腔に挿入されて画像情報を取得するための医療デバイス１であって、長尺なシース本体２１と、シース本体２１の遠位部に収容される超音波振動子４１１と、超音波振動子４１１を保持する保持部４１２と、保持部４１２に機械的駆動力を伝達する駆動シャフト４２と、シース本体２１の遠位部の側方に配置されて第１ガイドワイヤルーメン２２１が設けられた遠位側チューブ２２と、シース本体２１の遠位部の内部に配置される補強部２４と、を有し、補強部２４は、遠位側チューブ２２に隣接する側に偏って配置され、補強部２４の近位部および保持部４１２の超音波振動子４１１よりも遠位側に位置する部位は、シース本体２１の軸方向において重なり合う範囲を有する。【選択図】図２