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Three-dimensional interatrial septum puncture assembly

A three-dimensional technology of atrial septum, applied in puncture needles, puncture needles, medical science, etc., can solve problems such as superior vena cava and endocardial tissue damage, and achieve the effect of eliminating the risk of damage

Pending Publication Date: 2019-12-10
蔡衡
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem with this puncture method is that the position of the puncture needle can be displayed in real time in the three-dimensional system because the needle tip must always expose the inner sheath by 2 to 3 mm. , the needle tip may cause damage to the superior vena cava and endocardial tissue, and now there is an urgent need for a new dilator head structure, which can complete the puncture without X-ray or echocardiographic guidance, and reduces the Or eliminate needle tip damage to superior vena cava and endocardial tissue

Method used

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Embodiment Construction

[0037] The technical solutions of the present invention will be further described in detail below through embodiments and in conjunction with the drawings, but the present invention is not limited to the following embodiments.

[0038] figure 1 Shown is a schematic structural diagram of the three-dimensional atrial septal puncture assembly 10; figure 2 Shown is a schematic diagram of the distal end structure of the dilator 30 according to an embodiment of the present invention; image 3 Shown is along figure 2 A cross-sectional view along the line A-A. Such as figure 1 , figure 2 with image 3 As shown, the three-dimensional atrial septal puncture assembly 10 includes an atrial septal puncture needle 20 and a dilator 30, the dilator includes a dilator tube 32, and the dilator tube 32 includes a central chamber, a distal end, and a proximal end. A small hole 33 is provided on the distal end of the dilator tube 32, and the cross section of the small hole 33 can be any suitable s...

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Abstract

The present invention discloses a three-dimensional interatrial septum puncture assembly. The three-dimensional interatrial septum puncture assembly comprises an interatrial septum puncture needle anda dilator, the dilator comprises an dilator tube body, the dilator tube body comprises a central cavity, a far end and a near end, the far end of the dilator tube body is provided with a small hole,a contact assembly is arranged in the small hole, and the contact assembly comprises an elastic element; and the near end of the dilator tube body is connected with a luer connector. The three-dimensional interatrial septum puncture assembly enables a position of a needle tip of the interatrial septum puncture needle to be displayed in a three-dimensional system in real time, and reduces or eliminates risks of damages on superior vena cava and endocardial tissues caused by the needle tip.

Description

Technical field [0001] The invention relates to a three-dimensional atrial septal puncture assembly. Background technique [0002] There are more than 12 million patients suffering from atrial fibrillation (AF) in China, and radiofrequency ablation guided by the three-dimensional system is the first choice for radical atrial fibrillation. One of the important steps to complete the operation is atrial septal puncture. [0003] At present, the mainstream atrial septal puncture in China is still the atrial septal puncture under the guidance of X-ray fluoroscopy. This is a two-dimensional planar view technology developed more than half a century ago, and lacks precise instructions given by three-dimensional space. Mastering this technology requires long-term clinical accumulation. If the patient's heart is mutated, the puncture will be extremely difficult, and the success rate and safety of the puncture will be more affected when the patient is obese and the X-ray machine is not clear...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61B34/20
CPCA61B17/3403A61B17/3421A61B17/34A61B34/20A61B2034/2046
Inventor 蔡衡
Owner 蔡衡
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