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Interatrial septum puncture tool

A technique of atrial septum and tools, applied in puncture needles, trocars, etc., to solve problems such as needle stick injuries

Active Publication Date: 2012-03-14
苏州市弋翔众惠医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the deficiencies of the prior art, the present invention provides an atrial septal puncture tool, which not only has a reasonable design, but also can avoid the needle from injuring the inner wall of the left atrium caused by inaccurate puncture positioning or large puncture force

Method used

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Examples

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Embodiment Construction

[0031] Now combined with the manual Figure 1-5 Introduce the specific implementation of the atrial septal puncture tool according to the present invention: the atrial septal puncture tool includes an outer sheath 1, a dilator 2 and a puncture needle 3, the dilator 2 is fitted and pierced in the outer sheath 1, and the puncture needle 3 pierced in the dilator 2, the puncture needle 3 includes a head 4, a neck 5, and a body 6 connected in sequence, the head 4 is a puncture needle 41, and the neck 5 is pierced inside There is at least one miniature thin steel wire 51 in a tight spiral thin steel wire 52 , and the body 6 is a long soft steel wire 61 .

[0032] The cross section of the body 6 in the present invention is triangular in shape, the protruding height of the triangular ribs is the inner radius of the dilator, the gap between the triangular ribs is the injection channel 7, and the tail end 62 of the body is connected with a The injection connection port 9 of the side ho...

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PUM

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Abstract

The invention relates to an interatrial septum puncture tool, which comprises an epitheca, an expander and a puncture needle, wherein the expander is pasted and arranged in the epitheca in a penetrating way, and the puncture needle is arranged in the expander in a penetrating way. The interatrial septum puncture tool is characterized in that the puncture needle comprises a head part, a neck part and a body part in sequential connection, the head part is a puncture needle head, the neck part is a tight spiral fine steel wire with at least one micro fine steel wire penetrating at the inner side, and the body part is a long soft steel wire. The tool has the advantages that the design is reasonable, and in addition, the condition of left atrium inner wall puncture injury by the needle head caused by puncture positioning inaccuracy or excessive puncture acting force can be avoided.

Description

technical field [0001] The invention relates to a surgical operation tool, in particular to an atrial septal puncture tool. Background technique [0002] The human heart consists of the right ventricle, right atrium, left ventricle, and left atrium. The right atrium is connected to the superior and inferior venous cavities. The tricuspid valve separates the right atrium from the right ventricle. The right atrium is separated from the left atrium by the interatrial septum. separated. Many kinds of interventional cardiology diagnosis and treatment techniques have been developed. Catheters can be sent to different blood vessels and different positions in the heart chamber, but it is the most difficult for catheters to enter the left atrium. Access to the left atrium through the pulmonary artery is not possible, and retrograde access from the left ventricle to the left atrium is often difficult. Thus, the most common method used to access the left atrium is puncture through th...

Claims

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Application Information

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IPC IPC(8): A61B17/34
Inventor 李剑明李延辉
Owner 苏州市弋翔众惠医疗科技有限公司
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