Endoscope therapeutic device
First Claim
1. An endoscope therapeutic device for introducing a treatment tool into a body cavity and performing treatment by the treatment tool under observation by an endoscope, the endoscope therapeutic device comprising:
- a plurality of introduction guide tubes for introducing the treatment tool into a body cavity, each of the plurality of introduction guide tubes comprise an insertion portion, one or more bending portions provided at a distal side of the insertion portion and being bendable by a bending operation; and
a mutual joint for joining at least two of the plurality of introduction guide tubes disposed at a position proximal to the distal-most bending portions of each of the at least two introducing guide tubes.
1 Assignment
0 Petitions
Accused Products
Abstract
In an endoscope therapeutic device having a plurality of introduction guide tubes for introducing a treatment tool into a body cavity, the introduction guide tubes are mutually joined at a position more proximal than bending portions thereof. Accordingly, the effects caused by the movement of the plurality of the introduction guide tubes are mutually invalidated at a joint portion as a fulcrum, so that the position of the introduction guide tube is relatively stabilized in the body cavity. As joining methods, there are integration, usage of a joint tool, and usage of an over tube. The operability is improved when the introduction guide tube is provided at the distal end thereof with a mechanism for retaining and/or rotating a distal end of a treatment tool inserted therethrough.
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Citations
23 Claims
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1. An endoscope therapeutic device for introducing a treatment tool into a body cavity and performing treatment by the treatment tool under observation by an endoscope, the endoscope therapeutic device comprising:
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a plurality of introduction guide tubes for introducing the treatment tool into a body cavity, each of the plurality of introduction guide tubes comprise an insertion portion, one or more bending portions provided at a distal side of the insertion portion and being bendable by a bending operation; and
a mutual joint for joining at least two of the plurality of introduction guide tubes disposed at a position proximal to the distal-most bending portions of each of the at least two introducing guide tubes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An endoscope therapeutic device for introducing a treatment tool into a body cavity and performing treatment by the treatment tool under observation by an endoscope, the endoscope therapeutic device comprising:
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the endoscope comprising an insertion portion and a bending portion;
at least one introduction guide tube for introducing the treatment tool into a body cavity, the introduction guide tube comprising an insertion portion and at least one bending portion provided at a distal side of the insertion portion of the at least one introduction guide tube, the bending portion of the introduction guide tube being bendable by a bending operation; and
a joint tool for detachably joining the insertion portion of the endoscope and a portion of the at least one introduction guide tube at a position proximal to the distal-most bending portion of the at least one introduction guide tube. - View Dependent Claims (9, 10, 11, 12)
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13. A therapeutic instrument joint tool for mutually joining therapeutic instruments each having at least one bending portion and being configured for introduction into a body cavity, the therapeutic instrument joint tool being configured to mutually join the therapeutic instruments at a position proximal to the distal-most bending portions of each of the therapeutic instruments to be joined.
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14. An over tube comprising:
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a bending portion being bendable by a bending operation;
an insertion portion for inserting a plurality of introduction guide tubes therein; and
,a fixed portion for mutually fixing the plurality of introduction guide tubes at a position in the vicinity of and proximal to the bending portions of each of the plurality of introduction guide tubes. - View Dependent Claims (15)
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16. An introduction guide tube for receiving a treatment tool used for treatment in a body cavity inserted therethrough, the introduction guide tube comprising:
an operating mechanism provided at a distal portion of the introduction guide tube for retaining a distal end of the treatment tool inserted through the introduction guide tube and for moving the distal end of the treatment tool. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
Specification