Endoscope
First Claim
1. An endoscope comprising:
- an insertion portion at least partly insertable into a cavity and having a treatment tool channel enabling passage therethrough of a treatment tool;
an insertion/withdrawal mechanism for inserting and withdrawing the treatment tool into and from the treatment tool channel; and
a fine-adjustment mechanism for fine-adjusting the position of a distal end of the treatment tool relative to a distal end of the treatment tool channel.
1 Assignment
0 Petitions
Accused Products
Abstract
An endoscope is configured such that the position of the distal end of a treatment tool can be fine-adjusted when inserting and withdrawing the treatment tool into/from a treatment tool channel in the endoscope. For example, the treatment tool is inserted into the treatment tool channel of the endoscope and moved forward by a driving motor. When the distal end of the treatment tool projects from the treatment tool channel at the distal end of the endoscope, the forward movement is stopped, and the treatment tool is moved forward by manual operation. A method of manual operation includes the steps of rotating a dial and moving the treatment tool forward slowly. When in manual operation, the treatment tool is preferably released from any static torque of the motor.
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Citations
26 Claims
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1. An endoscope comprising:
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an insertion portion at least partly insertable into a cavity and having a treatment tool channel enabling passage therethrough of a treatment tool;
an insertion/withdrawal mechanism for inserting and withdrawing the treatment tool into and from the treatment tool channel; and
a fine-adjustment mechanism for fine-adjusting the position of a distal end of the treatment tool relative to a distal end of the treatment tool channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of moving a treatment tool forward in a channel of an endoscope, comprising:
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driving a roller in pressure contact with a side surface of the treatment tool by a motor and thereby moving the treatment tool forward in the channel;
stopping the forward movement after the distal end of the treatment tool projects from the distal end of the channel; and
fine-adjusting the position of the distal end of the treatment tool. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification