Treatment tool

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

Inactive Publication Date: 2013-09-04
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] like 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 to...

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PUM

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Abstract

In order to introduce a guide wire into the pericardial cavity while preventing the tip of the guide wire from contacting the heart, provided is a treatment tool (1) provided with: an elongated insertion section (3) having a channel (21) that opens at the tip surface and is formed in the lengthwise direction; a forceps section (5) provided to the tip of the insertion section (3) and having a pair of grasping parts (41,42) that can open and close; and a puncture needle (6) housed movably within the channel (21) and wherein a through hole into which the guide wire (13) can be inserted is formed in the lengthwise direction to the needle tip surface (6a). One of the grasping parts (41) is provided with the tip thereof able to be disposed at a position offset towards the base with respect to the tip of the other grasping part (42). The puncture needle (6) is provided in a manner so as to be able to emerge and recede from the opening at the tip surface of the insertion section (3) into the space (S) formed between the tips of the pair of grasping parts (41, 42) having an offset disposition.

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