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    Fluorescent endoscope apparatus
    1.
    发明授权
    Fluorescent endoscope apparatus 失效
    荧光内窥镜装置

    公开(公告)号：US5749830A

    公开(公告)日：1998-05-12

    申请号：US329909

    申请日：1994-10-27

    申请人： Mamoru Kaneko ,  Yasuhiro Ueda ,  Sakae Takehana ,  Masaya Yoshihara ,  Masahiko Iida ,  Naruto Shinkai ,  Kazunari Nakamura ,  Nobuhiko Washizuka ,  Yoshinao Oaki ,  Katsuya Suzuki

    发明人： Mamoru Kaneko ,  Yasuhiro Ueda ,  Sakae Takehana ,  Masaya Yoshihara ,  Masahiko Iida ,  Naruto Shinkai ,  Kazunari Nakamura ,  Nobuhiko Washizuka ,  Yoshinao Oaki ,  Katsuya Suzuki

    IPC分类号： A61B1/00 ,  A61B1/04 ,  H04N5/225 ,  H04N5/235 ,  A61B1/06

    CPC分类号： H04N5/2354 ,  A61B1/00082 ,  A61B1/00149 ,  A61B1/00186 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0653 ,  A61B1/00193 ,  H04N2005/2255

    摘要： A fluorescent endoscope apparatus having: an endoscope that irradiates a subject portion to be observed with light transmitted through a light transmission device to obtain an object image of the subject portion to be observed; a normal observation light generating device for emitting normal light for performing normal light endoscope observation; a fluorescent observation light generating device for emitting excitation light for performing fluorescent light observation; an introduced-light switching device for selectively introducing, to the light transmission device of the endoscope, normal light emitted by the normal observation light generating device or excitation light emitted by the fluorescent observation light generating device; and an image sensing device for capturing a normal light image of the subject portion to be observed that can be obtained by irradiating the subject portion to be observed with normal light or excitation light or a fluorescent image that can be obtained due to irradiation with excitation light, the image sensing device being included or connected to the endoscope.

    摘要翻译： 一种荧光内窥镜装置，具有：内窥镜，其通过透光装置透射的光照射待观察对象部分，以获得待观察对象部分的物体图像; 普通观察光发生装置，用于发射普通光，用于执行普通光内窥镜观察; 荧光观察光发生装置，用于发射用于进行荧光观察的激发光; 引导光开关装置，用于向内窥镜的光传输装置选择性地引入由普通观察光发生装置发出的正常光或由荧光观察光发生装置发射的激发光; 以及图像感测装置，用于捕获可以通过用激发光照射可以获得的普通光或激发光或荧光图像照射待观察对象部分而获得的待观察对象部分的正常光图像 图像感测装置被包括或连接到内窥镜。

    Apparatus for bending an insertion section of an endoscope using a shape memory alloy
    7.
    发明授权
    Apparatus for bending an insertion section of an endoscope using a shape memory alloy 失效
    用于使用形状记忆合金弯曲内窥镜的插入部分的装置

    公开(公告)号：US4930494A

    公开(公告)日：1990-06-05

    申请号：US291242

    申请日：1988-12-28

    申请人： Sakae Takehana ,  Yasuhiro Ueda ,  Masakazu Gotanda ,  Tomohisa Sakurai ,  Hideyuki Adachi

    发明人： Sakae Takehana ,  Yasuhiro Ueda ,  Masakazu Gotanda ,  Tomohisa Sakurai ,  Hideyuki Adachi

    IPC分类号： A61B1/005 ,  A61F2/00 ,  A61M25/01 ,  F03G7/06

    CPC分类号： A61M25/0158 ,  A61B1/00147 ,  A61B1/0058 ,  F03G7/065 ,  A61F2210/0014 ,  A61M2205/0266

    摘要： The distal end of an insertion section of an endoscope is divided into a plurality of segments each including a pair of SMA coils which are arranged symmetrically with respect to an axis and memorize a close-winding shape. As the SMA coils recovers their memorized shape, the distal end of the insertion section is bent. The SMA coils are restored to the memorized shape when they are conductively heated by means of a current supply circuit. The current supply circuit comprises an input unit for inputting a target value of the bend angle for a leading segment, a sensor for detecting the distance of insertion of the insertion section, a detector circuit for detecting the bend angle of each segment, and means for controlling the amount of current supply so that the bend angle of the SMA coils agrees with a target angle. The inputted angle is set as the target angle for the leading segment, and the detected bend angle of each segment is set as the target angle for each succeeding segment. The set value is renewed each time the insertion distance of the insertion section attains a predetermined distance.

    摘要翻译： 内窥镜的插入部的前端被分割成多个片段，每个片段包括一对相对于轴对称设置的SMA线圈并且记忆紧绕形状。 当SMA线圈恢复其记忆形状时，插入部分的远端弯曲。 当SMA线圈通过电流供应电路导电加热时，SMA线圈恢复到记忆形状。 电流供给电路包括用于输入前导部分的弯曲角度的目标值的输入单元，用于检测插入部分的插入距离的传感器，用于检测每个部分的弯曲角度的检测器电路，以及用于 控制电流供给量，使得SMA线圈的弯曲角度与目标角度一致。 将输入的角度设定为前段的目标角度，将各段的检测弯曲角度设定为每个后续段的目标角度。 每当插入部的插入距离达到预定距离时，更新设定值。

    Endoscope for automatically adjusting an angle with a shape memory alloy
    9.
    发明授权
    Endoscope for automatically adjusting an angle with a shape memory alloy 失效
    用于自动调整形状记忆合金角度的内窥镜

    公开(公告)号：US4884557A

    公开(公告)日：1989-12-05

    申请号：US193294

    申请日：1988-05-11

    申请人： Sakae Takehana ,  Yasuhiro Ueda ,  Tomohisa Sakurai

    发明人： Sakae Takehana ,  Yasuhiro Ueda ,  Tomohisa Sakurai

    IPC分类号： A61B1/00 ,  A61B1/005 ,  A61F2/00

    CPC分类号： A61B1/0058 ,  A61B1/128 ,  A61F2210/0033

    摘要： An endoscope includes a bending member having a shape memory alloy. A pair of heating current supplying wires and a pair of resistance detecting wires are connected at one end to the ends of the shape memory alloy. The other end of the heating current supplying wire is connected to a current supply circuit, and the other end of the resistance detecting wire is connected to a resistance detector. The resistance detector is constituted by a bridge circuit having a branch opened and the shape memory alloy is connected in the opened branch via the resistance detecting wires. A controller controls the current supply circuit according to the detected resistance. The current supply is effected by supplying a current pulse, and the amount of heating current and the bending degree can be controlled by controlling the pulse width of the current pulse. Since no heating current is supplied to the resistance detecting wires, the resistance thereof is not changed even when the shape memory alloy is heated by passing a heating current therethrough. Therefore, it is possible to precisely detect variation in the resistance of only the shape memory alloy member and measure the bending degree of the bending member.

    摘要翻译： 内窥镜包括具有形状记忆合金的弯曲构件。 一对加热电流供应线和一对电阻检测线在一端连接到形状记忆合金的端部。 加热电流供给线的另一端与电流供给电路连接，电阻检测线的另一端与电阻检测器连接。 电阻检测器由具有分支开口的桥接电路构成，并且形状记忆合金经由电阻检测线连接在开启的分支中。 控制器根据检测到的电阻来控制电流供应电路。 通过提供电流脉冲来实现电流供应，并且可以通过控制电流脉冲的脉冲宽度来控制加热电流和弯曲程度。 由于没有向电阻检测线供应加热电流，所以即使形状记忆合金通过加热电流而被加热，其电阻也不会改变。 因此，可以精确地检测形状记忆合金构件的电阻的变化并测量弯曲构件的弯曲度。

    Bending actuator having a coil sheath with a fixed distal end and a free proximal end
    10.
    发明授权
    Bending actuator having a coil sheath with a fixed distal end and a free proximal end 失效
    弯曲致动器具有具有固定远端和自由近端的线圈护套

    公开(公告)号：US5531664A

    公开(公告)日：1996-07-02

    申请号：US280564

    申请日：1994-07-25

    申请人： Hideyuki Adachi ,  Sakae Takehana ,  Yasuhiro Ueda ,  Yasuo Hirata ,  Kazuhiro Takahashi

    发明人： Hideyuki Adachi ,  Sakae Takehana ,  Yasuhiro Ueda ,  Yasuo Hirata ,  Kazuhiro Takahashi

    IPC分类号： A61B1/005 ,  A61B1/00 ,  A61B1/12

    CPC分类号： A61B1/0058 ,  A61B1/0052 ,  A61B1/0055 ,  A61B1/0057

    摘要： A bending drive member to bend a bending member is arranged to extend in the direction of length of an elongate tube having flexibility, and attached to near the distal end of the tube with the distal end of the bending drive member being restricted in its position. The bending member drive member comprises a shape memory member formed by bundling together a plurality of wire-like shape memory materials each having a length, that spans from the position of one end to the other end, reversibly changed upon heating/cooling. The length of the shape memory member is changed dependent on a drive signal from a unit with a capability of heating. A non-compressive coil sheath through which the bending drive member extends is fixed at a distal end thereof to the elongate tube while the proximal end of the coil sheath is a free end with respect to the elongate tube.

    摘要翻译： 用于弯曲弯曲构件的弯曲驱动构件被布置成沿着具有柔性的细长管的长度方向延伸，并且在弯曲驱动构件的远端被限制在其位置的情况下附接到管的远端附近。 弯曲构件驱动构件包括通过将多个线状形状记忆材料捆扎在一起而形成的形状记忆部件，每个线状形状记忆材料具有从一端位置到另一端的长度，在加热/冷却时可逆地改变。 形状记忆部件的长度根据来自具有加热能力的部件的驱动信号而变化。 弯曲驱动构件延伸穿过的非压缩线圈护套固定在其远端处于细长管上，而线圈护套的近端相对于细长管是自由端。