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公开(公告)号：US20190046010A1
公开(公告)日：2019-02-14
申请号：US16158371
申请日：2018-10-12
Applicant: OLYMPUS CORPORATION
Inventor： Ryo TOJO , Hiromasa FUJITA , Tetsuya MORISHIMA
Abstract: An insertion system includes an insertion section and a rigidity variable portion provided in the insertion section. The rigidity variable portion includes a superelastic alloy member whose rigidity starts changing from a high-rigidity state to a low-rigidity state at a temperature, which varies with a degree of bending of the superelastic alloy member, and a heating member capable of switching between presence and absence of heating of the superelastic alloy member. The insertion system also includes a bending state detection sensor that detects a bending state of the rigidity variable portion, and a rigidity variable controller that controls switching between presence and absence of heating of the superelastic alloy member by the heating member to control the temperature of the superelastic alloy member.
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公开(公告)号：US20170321666A1
公开(公告)日：2017-11-09
申请号：US15658684
申请日：2017-07-25
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
CPC classification number: F03G7/065 , A61B1/00078 , A61B1/0055 , A61B1/0058 , A61M25/0043 , A61M2025/0058 , A61M2025/0064 , A61M2205/0266
Abstract: A variable-stiffness actuator capable of providing different stiffnesses for a flexible member includes a shape-memory member that can transit in phase between a first phase and a second phase and an inducing member that causes phase transition between the first phase and the second phase into the shape-memory member. The shape-memory member is arranged in the flexible member with at least one free end. The shape-memory member takes a flexible state in which it is easily deformable by an external force when it is in the first stare, so as to provide lower stiffness for the flexible member. The shape-memory member takes a rigid state in which it tends to take a memorized shape memorized beforehand against an external force when it is in the second stare, so as to provide higher stiffness for the flexible member.
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公开(公告)号：US20210093224A1
公开(公告)日：2021-04-01
申请号：US17119020
申请日：2020-12-11
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
Abstract: An endoscope system includes an insertion section, a first active bending section, a second active bending section, a position-information acquiring section, a first control section, a second control section, and a third control section. The first control section controls, based on a detection result of the position-information acquiring section, a first driving section of the first active bending section such that a first end portion of a first tubular section of the first active bending section moves away from a center point. The first control section controls a second driving section of the second active bending section such that a second end portion of a second tubular section of the second active bending section approaches the center point. The third control section controls the first driving section such that force in a direction of bending the first tubular section in a first bending operation acts on the first end portion.
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公开(公告)号：US20180080437A1
公开(公告)日：2018-03-22
申请号：US15822587
申请日：2017-11-27
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
IPC: F03G7/06
CPC classification number: F03G7/065 , A61B1/00 , A61B1/0053 , A61B1/0057 , A61B1/0058
Abstract: A variable-stiffness actuator, installed in a flexible member and capable of providing different stiffnesses for the flexible member, includes a shape-memory member that can transit in phase between first and second phases and an inducing member that causes phase transition between the first and second phases into the shape-memory member. The shape-memory member takes, in the first stare, a flexible state in which it is easily deformable by an external force, so as to provide lower stiffness for the flexible member, and, in the second stare, a rigid state in which it tends to take a memorized shape against an external force, so as to provide higher stiffness for the flexible member. The actuator further includes a stiffness calculator that calculates the stiffness of the actuator.
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公开(公告)号：US20190234386A1
公开(公告)日：2019-08-01
申请号：US16375936
申请日：2019-04-05
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
IPC: F03G7/06
Abstract: A variable stiffness actuator includes a shape-memory member capable of transitioning in phase between a first phase and a second phase. The shape-memory member takes a low-stiffness state when in the first phase, and takes a high-stiffness state. The variable stiffness actuator also includes an inducing member configured to cause the shape-memory member to transition in phase between the first phase and the second phase and a connecting member elastically connecting the shape-memory member and inducing member. All of the shape-memory member, the inducing member, and the connecting member are conductive, and the shape-memory member, the inducing member, and the connecting member are electrically connected to each other.
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Patent Agency Ranking
公开(公告)号：US20160018625A1
公开(公告)日：2016-01-21
申请号：US14867548
申请日：2015-09-28
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
Abstract: An electromagnetic actuator includes an optical element L which is movable with respect to an optical axial direction, an optical-element holder which holds the optical element, a coil which is installed to enclose the optical element L and the optical-element holder, and a coil holder which holds the coil, wherein at least one of the optical-element holder and the coil holder comprises magnetic material which generates a magnetic flux in a radial direction and the optical element L is disposed at an inner side of the magnetic material.
Abstract translation: 电磁致动器包括可相对于光轴方向移动的光学元件L，保持光学元件的光学元件保持器，安装用于封闭光学元件L和光学元件保持器的线圈，以及 保持线圈的线圈架，其中，所述光学元件支架和所述线圈架中的至少一个包括在径向上产生磁通量的磁性材料，并且所述光学元件L设置在所述磁性材料的内侧。
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公开(公告)号：US20200046204A1
公开(公告)日：2020-02-13
申请号：US16654401
申请日：2019-10-16
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
Abstract: A variable stiffness actuator includes a shape-memory member, and a heater configured to receive power to heat the shape-memory member so as to cause the shape-memory member to change from a first phase as a low stiffness state to a second phase as a high stiffness state showing a higher stiffness than the low stiffness state. The actuator also includes a first conductive wire having one end connected to the heater and constituting a part of a power supply line for the heater, and a second conductive wire having one end connected to the other end of the first conductive wire, thicker than the first conductive wire, and having an electrical resistance per unit length lower than that of the first conductive wire.
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公开(公告)号：US20190046008A1
公开(公告)日：2019-02-14
申请号：US16163697
申请日：2018-10-18
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
Abstract: A variable-stiffness actuator system includes a shape-memory member in which a stiffness increases by being heated and decreases by radiating heat, a heating member configured to generate heat, a channel arranged along the longitudinal axis of the shape-memory member, a transfer section configured to selectively supply and stop first and second heat transmission fluids into the channel, and a controller configured to control the transfer section. The controller causes the transfer section to supply the first heat transmission fluid and then supply the second heat transmission fluid into the channel, and further to stop the supply of the second heat transmission fluid so that retention of the first and second heat transmission fluids simultaneously occurs in the channel.
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公开(公告)号：US20180317751A1
公开(公告)日：2018-11-08
申请号：US16033262
申请日：2018-07-12
Applicant: OLYMPUS CORPORATION
Inventor： Toru KUBOI , Masaya TAKAHASHI , Tetsuya MORISHIMA
CPC classification number: A61B1/00165 , A61B1/00 , A61B1/00006 , A61B1/00009 , A61B1/00045 , A61B1/00071 , A61B1/0057 , A61B34/20 , A61B2034/2061 , A61B2090/306 , G02B23/26
Abstract: A shape measuring apparatus includes a cylindrical flexible body and a bend detection sensor. The sensor includes an optical fiber extending along the flexible body, a detection target to vary characteristics of detection light guided through the optical fiber in accordance with a curvature of the optical fiber, and a light detection unit to detect the detection light. The shape measuring apparatus also includes a shape calculating device to calculate a bend shape of the flexible body, based on the variation of the characteristics of the detection light, a cylindrical sheathing member sheathing a part of the optical fiber in the flexible body, and a hard distal member provided at a distal end of the flexible body and holding a distal end of the sheathing member.
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公开(公告)号：US20180263468A1
公开(公告)日：2018-09-20
申请号：US15983155
申请日：2018-05-18
Applicant: OLYMPUS CORPORATION
Inventor： Tetsuya MORISHIMA
CPC classification number: A61B1/00078 , A61B1/0057 , A61B1/0058 , A61B1/018 , F03G7/065
Abstract: A variable-stiffness actuator includes a shape-memory member that has an end and another end and increases in stiffness on heating, and a heating member that is arranged along a longitudinal axis of the shape-memory member so as to surround an outside of the shape-memory member and receives a current to heat the shape-memory member. The variable-stiffness actuator also includes a conductive member arranged around an outer periphery of the heating member, so as to physically protect the heating member. The conductive member is electrically connected to the heating member.
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