Puncture instrument for cardiac surgery

A technique for cardiac surgery and instruments, applied in the field of atrial septal puncture instruments, puncture needles and puncture sheaths, can solve problems such as unreported, lack of instruments, etc., and achieve the effect of simplifying surgical steps and good positioning of the interatrial septum

Pending Publication Date: 2016-10-19
AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, those skilled in the art are making various improvements to the method of atrial septal puncture, but the technology of directly puncturing the atrial septum from the

Method used

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  • Puncture instrument for cardiac surgery
  • Puncture instrument for cardiac surgery
  • Puncture instrument for cardiac surgery

Examples

Experimental program
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Embodiment 1

[0026] Such as Figure 1~3 As shown, the puncture instrument used for heart surgery is composed of a puncture steel needle 1, a puncture sheath 2 and a steel needle guide 3; the steel needle guide 3 mediates the puncture steel needle 1 to the In the puncture sheath 2; the tail end 12 of the puncture steel needle 1 is fixedly connected to the puncture head 13; the puncture sheath 2 is in an "S" shape in three-dimensional conformation as a whole, and the tail end is in the shape of a "hanging basket"; The steel needle guide 3 is cylindrical and hollow as a whole;

[0027]The puncture steel needle 1 is made of soft steel wire or other alloys and ceramics, its surface has a hydrophilic coating or does not contain a hydrophilic coating, the length is 200mm-2000mm, and the diameter is 0.05mm-2.5mm; the puncture steel wire 1 The puncture head 13 (1mm ~ 5mm) does not contain coating, is a hard guide wire, and is polished to have a certain angle. The puncture head 13 can be eccentric ...

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Abstract

The invention belongs to the field of medical devices, relates to a puncture instrument for cardiac surgery and especially relates to a puncture instrument used in left ventricle endocardium pacing. The instrument comprises a puncture steel needle, a puncture sheath tube and a steel needle introducer; the puncture steel needle is guided by the steel needle introducer to the puncture sheath tube; the tail end of the puncture steel needle is fixedly connected with a puncture head; the puncture sheath tube is overall in a spatial conformation of S-shape and the tail end is shaped as a hanging basket; the steel needle introducer is overall cylindrical and hollow. Application results show that the puncture instrument for cardiac surgery can accurately position interatrial septum; by means of the puncture instrument, surgical procedures are simplified and safe; the puncture instrument can be used in left ventricle endocardium pacing and can be directly puncture the interatrial septum from superior vena cava.

Description

technical field [0001] The invention belongs to the field of medical devices, and relates to a puncture device for heart surgery, in particular to an atrial septal puncture device for left ventricular endocardial pacing, in particular to a puncture device for direct puncture through the superior vena cava Atrial septal puncture needle and puncture sheath. The puncture device is used for myocardial resynchronization therapy in patients with heart failure to directly puncture the interatrial septum from the superior vena cava so as to realize the direct implantation of left ventricular electrodes under the left ventricular subendocardium for pacing, as well as intracatheter replacement of the mitral valve, radiofrequency Ablation surgery, stem cell subendocardial myocardial transplantation, etc. Background technique [0002] Research practice has shown that in the process of heart failure, about 30% of patients have heart enlargement and heart desynchronization, which is mani...

Claims

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Application Information

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IPC IPC(8): A61B17/34
Inventor 孙韬朱福音
Owner AFFILIATED HUSN HOSPITAL OF FUDAN UNIV
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