公开(公告)号：US20140046133A1

公开(公告)日：2014-02-13

申请号：US14035530

申请日：2013-09-24

Applicant: FUJIFILM CORPORATION

Inventor： Takayuki NAKAMURA ,  Tsuyoshi ASHIDA ,  Shinichi YAMAKAWA ,  Yasunori OHTA ,  Charles Alan BRANTINGHAM

IPC: A61B1/00

CPC classification number: A61B1/00156 ,  A61B1/00135 ,  A61B1/0016

Abstract: A self-propelling device includes a drive unit and a toroid unit supported thereabout. The toroid unit includes a track structure of a toroid shape and a roller support sleeve inside the track structure. Three belt portions are provided in the track structure with high rigidity. The drive unit includes an inner sleeve for mounting on an introducer of an endoscope, and an outer sleeve supported around the inner sleeve. An inner surface of the roller support sleeve and an outer surface of the outer sleeve extend triangularly. Drive wheels are disposed upstream and downstream of respectively flat portions of the outer sleeve. Two follower rollers are disposed on respectively each of flat portions of the roller support sleeve. The drive wheels and follower rollers nip the belt portions of the track structure to move the track structure endlessly.

Abstract translation: 自推进装置包括驱动单元和支撑在其上的环形单元。 环形单元包括轨道结构的轨道结构和轨道结构内的滚子支撑套筒。 轨道结构中具有高刚性的三个皮带部。 驱动单元包括用于安装在内窥镜的导引器上的内套筒和围绕内套筒支撑的外套筒。 辊支撑套筒的内表面和外套筒的外表面三角地延伸。 驱动轮设置在外套筒的分别平坦部分的上游和下游。 两个从动辊分别设置在辊支撑套筒的平坦部分上。 驱动轮和从动辊夹持轨道结构的带部分以使轨道结构不停地移动。

公开(公告)号：US20140107419A1

公开(公告)日：2014-04-17

申请号：US13936698

申请日：2013-07-08

Applicant: FUJIFILM CORPORATION

Inventor： Takayuki NAKAMURA ,  Tsuyoshi ASHIDA ,  Yasunori OHTA ,  Shinichi YAMAKAWA ,  Charles Alan BRANTINGHAM

IPC: A61B1/00

CPC classification number: A61B1/0016 ,  A61B1/00135

Abstract: An assist assembly for propulsion of a tip device of an endoscope in a body cavity includes an attachment sleeve and a support sleeve. A deformable circulation device is disposed to extend over inner and outer surfaces of the support sleeve, for endlessly moving in an axial direction of the tip device. Plural rollers are disposed on the support sleeve in a rotatable manner, for pressing an inner surface of the circulation device. An alignment projection is formed on the inner surface of the circulation device to project at a height L1. A location offset prevention groove is formed in the rollers at a depth L2, for receiving the alignment projection, and satisfying a condition L1≧L2, to prevent location offset of the circulation device from the rollers. Drive wheels tension the circulation device in cooperation with the rollers by deforming the alignment projection in the location offset prevention groove.

Abstract translation: 用于在体腔内推动内窥镜的尖端装置的辅助组件包括附接套筒和支撑套筒。 可变形循环装置设置成在支撑套筒的内表面和外表面上延伸，以在尖端装置的轴向方向上不停地移动。 多个辊以可旋转的方式设置在支撑套上，用于按压循环装置的内表面。 在循环装置的内表面上形成一个高度为L1的突起。 在辊的深度L2处形成位置偏移防止槽，用于接收对准突起，并且满足条件L1≥L2，以防止循环装置与辊的位置偏移。 驱动轮通过使位置偏移防止槽中的对准突起变形而与辊协作地张紧循环装置。