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handling tools

A technology for handling tools and holding pieces, which is applied in medical science, surgery, surgical forceps, etc., and can solve problems such as contact

Inactive Publication Date: 2016-12-21
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the case of Patent Document 1, there is a problem that when the guide wire is passed through the pericardium, the tip of the guide wire may touch the heart adjacent to the pericardium.

Method used

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Embodiment Construction

[0040] Hereinafter, a treatment tool 1 according to an embodiment of the present invention will be described with reference to the drawings.

[0041] Such as figure 1 As shown, the treatment tool 1 of this embodiment includes: an elongated insertion part 3, which has two passages 21, 22 formed through the lengthwise direction; The pair of holding pieces 41, 42; the puncture needle 6, which is accommodated in the insertion part 3; 42, the needle operating unit 8 is used to operate the puncture needle 6 at the base end side of the insertion part 3.

[0042] figure 2 cut at halfway figure 1 The cross-sectional view obtained from the insertion part 3.

[0043] The insertion part 3 is made of a rigid material. One first channel (channel) 21 is opened on both end surfaces of the insertion portion 3 , and the puncture needle 6 is inserted so as to be movable in the longitudinal direction. In the other second channel 22 , a gripping force transmission member 9 is inserted so as...

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Abstract

Guide the wire into the pericardial cavity while preventing the tip of the wire from contacting the heart. A treatment instrument (1) is provided, comprising: an elongated insertion part (3) having a channel (21) opened at the top end surface of the insertion part (3) and formed along the length direction; a forceps part (5), It is arranged at the top of the insertion part (3) and has a pair of holding pieces (41, 42) that can be opened and closed; and a puncture needle (6), which is accommodated in the channel in a manner that can move within the channel (21) (21), and the puncture needle (6) is formed with a through hole in the length direction through which the wire (13) can be inserted, and the through hole is formed to the needle tip surface (6a); a holding piece (41) is provided to enable the insertion of the wire (13). The distal end of the holding piece (41) is disposed at a position shifted toward the proximal end side from the distal end of the other holding piece (42), and the puncture needle (6) is configured to be able to pass through the opening of the distal end surface of the insertion portion (3) They appear in the space (S) formed between the top ends of a pair of staggered holding pieces (41, 42).

Description

technical field [0001] The present invention relates to a treatment tool. Background technique [0002] Conventionally, there is known a treatment instrument that introduces a guide wire into the pericardial cavity by puncturing the pericardium while grasping the pericardium (for example, refer to Patent Document 1). [0003] Patent Document 1: Specification of US Patent No. 5,931,810 [0004] However, in the case of Patent Document 1, there is a problem that when the guidewire is passed through the pericardium, the tip of the guidewire may touch the heart adjacent to the pericardium. Contents of the invention [0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a treatment tool capable of introducing a guidewire into a pericardial cavity while preventing the tip of the guidewire from contacting the heart. [0006] In order to achieve the above object, the present invention provides the foll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/28A61B17/34
CPCA61B17/29A61B17/3478A61B2017/00243A61B2017/00247A61B2017/2944A61B17/3415A61B17/28
Inventor 小林雅之
Owner OLYMPUS CORP
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