High-frequency treatment tool and method for operating high-frequency treatment tool
A treatment device and high-frequency technology, applied in the direction of heating surgical instruments, etc., can solve the problem of decreased incision
Pending Publication Date: 2022-07-22
OLYMPUS CORP
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Problems solved by technology
[0003] In the high-frequency treatment instrument described in Patent Document 1, when the living tissue is cauterized and incised, the scorched part of the dissected living tissue adheres to the electrode, so that the incisability is reduced.
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[0076] Hereinafter, the high-frequency treatment instrument and the operation method of the high-frequency treatment instrument according to one embodiment of the present invention will be described with reference to the drawings.
[0077] like figure 1 As shown, the high-frequency treatment instrument 1 of the present embodiment is, for example, a treatment instrument whose distal end is introduced into the body (in vivo) through a channel (not shown) provided in the insertion portion 10a of the endoscope 10 . exist figure 1 In the figure, reference numeral S denotes a lesion site in the body.
[0078] like figure 2 and image 3 As shown, the high-frequency treatment tool 1 includes a flexible and elongated cylindrical sheath 3 and a blade portion 5 that advances and retreats at the front end of the sheath 3 . Hereinafter, the front end side of the sheath 3 is referred to as the front, and the proximal end side of the sheath 3 is referred to as the rear.
[0079] The ...
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A high-frequency treatment tool (1) is provided with: a cylindrical sheath (3); the insulating head (11) is fixed at the front end of the sheath (3); and an electrode part (13) that passes through the insulating head (11), protrudes in the longitudinal direction of the sheath (3), and is provided so as to be relatively movable with respect to the insulating head (11) in the longitudinal direction of the sheath (3) and so as to be relatively rotatable with respect to the insulating head (11) about the longitudinal axis of the sheath (3). The electrode part (13) includes a first electrode (13a) extending in the longitudinal direction of the sheath (3) and at least one second electrode (13b) extending from the tip of the first electrode (13a) in a direction intersecting the longitudinal direction of the sheath (3), and the insulating head (11) has at least one groove (11b) in a direction facing the second electrode (13b). As a result, the electrode part (13) and the sheath (3) are moved relative to each other in the longitudinal direction of the sheath (3) and rotated relative to each other about the longitudinal axis.
Description
technical field [0001] The present invention relates to a high-frequency treatment device and a method of operating the high-frequency treatment device. Background technique [0002] A high-frequency treatment instrument for endoscopically incising a living tissue such as a mucosa has been known (for example, refer to Patent Document 1). The high-frequency treatment tool described in Patent Document 1 has a rod-shaped electrode that protrudes in the longitudinal direction from the distal end of the sheath. The high-frequency treatment tool described in Patent Document 1 cauterizes and dissects the living tissue by bringing the electrode into contact with the living tissue in a state in which a high-frequency current is applied to the electrode. [0003] In the high-frequency treatment tool described in Patent Document 1, when a living tissue is cauterized and incised, the cauterized portion of the incised living tissue adheres to the electrode, thereby reducing the incision...
Claims
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IPC IPC(8): A61B18/14
CPCA61B18/1492A61B2018/1417A61B2018/1475A61B2018/00595A61B2018/00601A61B2018/1405
Inventor 樋口嘉则宫岛千贺加藤聪子
Owner OLYMPUS CORP