Disposal Instruments for Endoscopes

A technology for disposing of instruments and endoscopes, which is applied in medical science, surgery, etc., can solve problems such as strangulation of stone baskets, and achieve the effect of appropriate emergency crushing

Active Publication Date: 2020-05-12
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When recovering a relatively large calculus using an endoscopic treatment instrument having such a stone retrieval basket, for example, depending on the relationship between the size of the stone retrieval basket containing the stone and the size of the lumen, sometimes the stone retrieval basket is hooked In the bile duct, a strangulation occurs in which the stone extraction basket cannot advance and retreat in the bile duct

Method used

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  • Disposal Instruments for Endoscopes
  • Disposal Instruments for Endoscopes
  • Disposal Instruments for Endoscopes

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0048] A treatment instrument for endoscope (hereinafter simply referred to as "treatment instrument") 1 according to a first embodiment of the present invention will be described. figure 1 is a sectional view of the treatment tool 1 . figure 2It is a partial sectional view of the distal end of the treatment instrument 1 . In the present embodiment, the side on which the operation unit 70 is provided in the longitudinal direction of the treatment instrument 1 is referred to as the proximal side, and the side opposite to the proximal side is described as the distal side.

[0049] Such as figure 1 As shown, in the treatment instrument 1, the operation wire 10, the stone retrieval basket 20, the tip head 30, the restraint 40, and the support member 50 are inserted through a flexible sheath (hereinafter, simply referred to as "sheath") in a manner capable of advancing and retreating. Constructed within 60.

[0050] The proximal end side of the operation wire 10 is connected ...

no. 2 Embodiment approach

[0106] refer to Figure 24 ~ Figure 27 The treatment instrument 1A of the second embodiment will be described. This embodiment differs from the first embodiment in the connection structure between the support member and the operation wire. In addition, in the following description, the same code|symbol is attached|subjected to the structure etc. which are common to the structure already demonstrated, and a redundant description is abbreviate|omitted. Figure 24 It is a partial sectional view showing the distal end portion of the treatment instrument 1A. Figure 25 It is a side view of the base end part 51A of 50 A of support members of this embodiment. Figure 26 It is a figure which looked at 50 A of support members of this embodiment from the front-end|tip part side. Figure 27 It is a perspective view of the base end part 51A of 50 A of support members of this embodiment.

[0107] In the treatment instrument 1A of the present embodiment, instead of the connection member...

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Abstract

The treatment instrument for endoscope of the present invention includes: an operation wire, which penetrates through the flexible sheath in a manner capable of advancing and retreating; The top end of the part bundles and fixes the top ends of the plurality of stone retrieval basket wires; the binding part bundles and fixes the base ends of the plurality of stone retrieval basket wires; The direction of the central axis of the support member is arranged in such a way as to pass through the inside of the stone retrieval basket, and the top end is fixed to the top end, and the base end of the support member is located on the base end side of the binding portion, and the connected to the operation wire in a manner capable of sliding relative to the operation wire in the direction of the central axis.

Description

technical field [0001] The present invention relates to an endoscope treatment tool for recovering foreign matter in the body. This application claims priority based on Japanese Patent Application No. 2015-101766 for which it applied in Japan on May 19, 2015, and uses the content here. Background technique [0002] Conventionally, a treatment tool for an endoscope is known which is inserted into the body via an endoscope and recovers foreign substances such as calculus generated in the biliary tract or the like. For example, Patent Document 1 discloses a treatment instrument for an endoscope that has a stone removal basket including a plurality of spiral-shaped elastic wires, and accommodates and recovers stones in the stone removal basket. In the treatment tool for endoscope described in Patent Document 1, a support member is provided on the stone retrieval basket in order to prevent the entire stone retrieval basket from bending and falling down. The top end of the suppo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/221
CPCA61B17/221A61B2017/00323A61B2017/2212A61B17/00234A61B17/50A61B2017/00314A61B2017/00818
Inventor 早川知孝
Owner OLYMPUS CORP
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