会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Apparatus for bending an insertion section of an endoscope using a shape
memory alloy
    • 用于使用形状记忆合金弯曲内窥镜的插入部分的装置
    • US4930494A
    • 1990-06-05
    • US291242
    • 1988-12-28
    • Sakae TakehanaYasuhiro UedaMasakazu GotandaTomohisa SakuraiHideyuki Adachi
    • Sakae TakehanaYasuhiro UedaMasakazu GotandaTomohisa SakuraiHideyuki Adachi
    • A61B1/005A61F2/00A61M25/01F03G7/06
    • A61M25/0158A61B1/00147A61B1/0058F03G7/065A61F2210/0014A61M2205/0266
    • 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.
    • 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。
    • 10. 发明授权
    • Position controlling apparatus
    • 位置控制装置
    • US4977886A
    • 1990-12-18
    • US428144
    • 1989-10-27
    • Sakae TakehanaKoji FujioYasuhiro Ueda
    • Sakae TakehanaKoji FujioYasuhiro Ueda
    • A61B1/005A61F2/00
    • A61B1/0058A61F2210/0023
    • The position controlling apparatus of this invention is to curve an endoscope insertable part or a catheter and is provided with an actuator having a shape memorizing alloy body. The shape memorizing alloy body is heated or cooled by a driving appartaus and the actuator is displaced by such heating or cooling. The difference between the actual displacement of the actuator driven by the driving apparatus and the objective displacement of the actuator is output by a comparing means which operates the driving apparatus on the basis of this difference. A resistance value detecting circuit detects the resistance value of the shape memorizing alloy body varying when the shape memorizing alloy body is heated or cooled. The detected value detected by the resistance value detecting circuit is input into a controlling apparatus which controls the driving apparatus on the basis of the detected value and the preset used temperature range of the shape memorizing alloy body.
    • 本发明的位置控制装置是对内窥镜可插入部件或导管进行弯曲,并具有形状记忆合金体的致动器。 形状记忆合金体由驱动方式加热或冷却,致动器通过这种加热或冷却而移位。 由驱动装置驱动的致动器的实际位移与致动器的目标位移之间的差异由基于该差异来操作驱动装置的比较装置输出。 电阻值检测电路检测当形状记忆合金体被加热或冷却时变形的形状记忆合金体的电阻值。 由电阻值检测电路检测到的检测值被输入到根据检测值和形状记忆合金体的预设使用温度范围来控制驱动装置的控制装置。