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公开(公告)号：US20160227982A1
公开(公告)日：2016-08-11
申请号：US14988709
申请日：2016-01-05
Applicant: FUJIFILM Corporation
Inventor： Nobuharu TAKAHASHI , Motohiko MATSUSHITA , Takuro IDE
CPC classification number: A61B1/00078 , A61B1/00082 , A61B1/00154
Abstract: There is provided an endoscope system which can secure appropriate bending stiffness of an insertion portion while maintaining the slide length of an endoscope insertion portion. According to one aspect of one of the present invention, in an endoscope system including an endoscope and an insertion assisting tool in which the endoscope is inserted and which assists the insertion of an endoscope insertion portion into a body, a flexible portion of the endoscope insertion portion includes a projection region which projects from the distal end opening of a tube body when the endoscope insertion portion is located in the distal end position in a movable range with respect to the tube body of the insertion assisting tool, and the projection region includes a bending stiffness change portion in which bending stiffness increases from a first position on the distal end side to a second position on the proximal end side.
Abstract translation: 提供一种能够在保持内窥镜插入部的滑动长度的同时确保插入部的适当的弯曲刚性的内窥镜系统。 根据本发明的一个方面，在具有内窥镜和插入辅助工具的内窥镜系统中，其中插入有内窥镜并有助于将内窥镜插入部插入到体内，内窥镜插入件的柔性部分 所述突起区域包括当所述内窥镜插入部位于所述插入辅助工具的所述管体的可移动范围中的远端位置时从所述管体的远端开口突出的突出区域，并且所述突出区域包括： 弯曲刚度变化部，其弯曲刚度从前端侧的第一位置向近端侧的第二位置增大。
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公开(公告)号：US20230074673A1
公开(公告)日：2023-03-09
申请号：US17988774
申请日：2022-11-17
Applicant: FUJIFILM Corporation
Inventor： Nobuharu TAKAHASHI , Motohiko MATSUSHITA , Takuro IDE
Abstract: An endoscope system includes an endoscope, and an insertion auxiliary tool into which the endoscope is inserted. A flexible portion of the insertion section of the endoscope includes, from a distal end side toward a proximal end side, a low flexural rigidity portion, a flexural rigidity varying portion in which a flexural rigidity increases from the distal end side toward the proximal end side, and a high flexural rigidity portion with flexural rigidity higher than that in the low flexural rigidity portion. When at least a part of the flexible portion projects from a distal end opening of the tube body, a position of the proximal end of the low flexural rigidity portion is positioned closer to a proximal end of the insertion auxiliary tool than the distal end opening of the tube body from the proximal end of the insertion auxiliary tool.
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公开(公告)号：US20200170489A1
公开(公告)日：2020-06-04
申请号：US16780910
申请日：2020-02-04
Applicant: FUJIFILM Corporation
Inventor： Nobuharu TAKAHASHI , Motohiko MATSUSHITA , Takuro IDE
Abstract: An endoscope system includes an endoscope, and an insertion auxiliary tool into which the endoscope is inserted. A flexible portion of the insertion section of the endoscope includes, from a distal end side toward a proximal end side, a low flexural rigidity portion, a flexural rigidity varying portion in which a flexural rigidity increases from the distal end side toward the proximal end side, and a high flexural rigidity portion with flexural rigidity higher than that in the low flexural rigidity portion. When at least a part of the flexible portion projects from a distal end opening of the tube body, a position of the proximal end of the low flexural rigidity portion is positioned closer to a proximal end of the insertion auxiliary tool than the distal end opening of the tube body from the proximal end of the insertion auxiliary tool.
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公开(公告)号：US20160353980A1
公开(公告)日：2016-12-08
申请号：US15170930
申请日：2016-06-01
Applicant: FUJIFILM Corporation
Inventor： Nobuharu TAKAHASHI , Motohiko MATSUSHITA , Takuro IDE
Abstract: An endoscope system includes an endoscope, and an insertion auxiliary tool into which the endoscope is inserted. A flexible portion of the insertion section of the endoscope includes, from a distal end side toward a proximal end side, a low flexural rigidity portion, a flexural rigidity varying portion in which a flexural rigidity increases from the distal end side toward the proximal end side, and a high flexural rigidity portion with flexural rigidity higher than that in the low flexural rigidity portion. When at least a part of the flexible portion projects from a distal end opening of the tube body, a proximal end position of the low flexural rigidity portion is on a proximal end side of the tube body with respect to the distal end opening.
Abstract translation: 内窥镜系统包括内窥镜和内窥镜插入其中的插入辅助工具。 内窥镜的插入部的挠性部从远侧侧朝向近端侧具有低弯曲刚性部，抗弯刚度从前端侧向基端侧增大的弯曲刚性变化部 以及具有比低弯曲刚性部更高的抗弯刚度的高弯曲刚性部。 当柔性部分的至少一部分从管体的远端开口突出时，低弯曲刚度部分的近端位置在管体相对于远端开口的基端侧。
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