Electrically-bent endoscope
First Claim
1. An electrically-bent endoscope, comprising:
- a motor for generating a driving force;
a gear train for transmitting the driving force generated by the motor, the gear train having a plurality of gears;
a converting member for converting the driving force of the motor to a back and forth movement of a bending operation member for bending a bending portion provided at an inserting portion, the converting member and a final level of the gear train being mounted about a common axis;
a transmitting member for connecting and disconnecting the gear train and the converting member, the driving force being transmitted from the final level of the gear train to the converting member when the transmitting member is connected to the gear train and the converting member;
a thrust mechanism for moving the transmitting member in an axial direction of the axis; and
an operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting between the gear train and the converting member.
3 Assignments
0 Petitions
Accused Products
Abstract
An electrically-bent endoscope includes a bend driving portion for bending a bending portion. The bend driving portion has a motor for generating driving force, a gear train for transmitting driving force generated in the motor, a sprocket for converting driving force of the motor to a back and forth movement of bending operation wires for bending the bending portion at the head portion of an inserting portion, and a clutch mechanism for connecting and disconnecting driving force transmitted from the gear train to the sprocket. The clutch mechanism includes a transmitting member for connecting and disconnecting the gear train and sprocket, a thrust mechanism for moving the transmitting member in the axial direction of the sprocket and a clutch operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting the gear train and the sprocket.
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Citations
26 Claims
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1. An electrically-bent endoscope, comprising:
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a motor for generating a driving force;
a gear train for transmitting the driving force generated by the motor, the gear train having a plurality of gears;
a converting member for converting the driving force of the motor to a back and forth movement of a bending operation member for bending a bending portion provided at an inserting portion, the converting member and a final level of the gear train being mounted about a common axis;
a transmitting member for connecting and disconnecting the gear train and the converting member, the driving force being transmitted from the final level of the gear train to the converting member when the transmitting member is connected to the gear train and the converting member;
a thrust mechanism for moving the transmitting member in an axial direction of the axis; and
an operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting between the gear train and the converting member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electrically-bent endoscope, comprising:
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a motor for generating a driving force for bending a bending portion provided at an insertion portion;
a gear train for transmitting the driving force generated in the motor;
a sprocket for converting the driving force of the motor to a back and forth movement of a bending operation wire, the sprocket and a final level of the gear train being mounted about a common axis for rotation;
a transmitting member for connecting and disconnecting the final level of the gear train and the sprocket, the driving force being transmitted from the final level of the gear train to the sprocket when the transmitting member is connected to the gear train and the sprocket;
a thrust mechanism for moving the transmitting member back and forth in an axial direction of the axis for rotation in order to connect and disconnect the final level of the gear train and the sprocket; and
a clutch operation knob, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting between the gear at the final level of the gear train and the sprocket.
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20. An electrically-bent endoscope, comprising:
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a motor for generating a driving force;
a driving force transmitting portion for transmitting the driving force generated by the motor, the driving force transmitting portion having an output member mounted to a shaft for outputting the transmitted driving force;
a converting portion for converting the driving force of the motor outputted by an output member to a back and force forth movement of a bending operation member for bending a bending portion provided at an insertion portion;
a transmitting member for connecting and disconnecting the output member and the converting portion;
a thrust portion for moving the transmitting member in an axial direction of the shaft in order to connect and disconnect the output member and the converting portion;
an operating portion, connected to the thrust portion, for inputting instructions for connecting and disconnecting between the driving force transmitting portion and the converting portion.
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21. An electrically-bent endoscope, comprising:
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a motor;
driving force transmitting means for transmitting a driving force generated by the motor, the driving force transmitting means having an output member mounted to a shaft for outputting the transmitted driving force;
converting means for converting the driving force of the motor to a back and forth movement of a bending operation member for bending a bending portion provided at an insertion portion of the endoscope;
a transmitting member for connecting and disconnecting the driving force transmitting means and the converting means;
means for moving the transmitting member in an axial direction of the shaft in order to connect and disconnect the output member and the converting means; and
operating means, connected to the means for moving the transmitting member, for inputting instructions for connecting and disconnecting between the driving force transmitting means and the converting means.
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22. An electrically-bent endoscope, comprising:
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a motor for generating a driving force;
a gear train for transmitting the driving force generated by the motor;
a converting member for converting the driving force of the motor to a back and forth movement of a bending operation member for bending a bending portion of an inserting portion of the endoscope a head side of the inserting portion;
a clutch mechanism having a transmitting member for connecting and disconnecting the gear train and the converting member, the clutch mechanism connecting and disconnecting the driving force transmitted from the gear train to the converting member;
a thrust mechanism for moving the transmitting member in an axial direction relative to of the converting member; and
a clutch operating member, connected to the thrust mechanism, for inputting instructions for connecting and disconnecting between the gear train and the converting member, wherein a final level of the gear train and the transmitting member are provided coaxially, and the thrust mechanism has a cam mechanism including a cam pin provided at a shaft to be rotated in response to a manipulation on the clutch overacting member, a cam provided in the transmitting member, the cam having a cam slot for fitting the cam pin, and a guide member for preventing rotation of the cam. - View Dependent Claims (23, 24, 25)
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26. An apparatus for bent-driving an endoscope, comprising:
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a gear train for transmitting driving force generated by a motor, the gear train having a plurality of gears;
a converting member for converting the driving force of the motor to a back and forth movement of a bending operation member for bending a bending portion provided at an insertion portion of the endoscope, the converting member and a final level of the gear train being mounted about a common axis;
a transmitting member for connecting and disconnecting the gear train and the converting member, the driving force being transmitted from the final level of the gear train to the converting member when the transmitting member is connected to the gear train and the converting member;
a thrust mechanism for moving the transmitting member in an axial direction of the axis; and
an operating member connected to the thrust mechanism for inputting instructions for connecting and disconnecting between the gear train and the converting member.
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Specification