Interventional septal puncture device assembly and intervention method thereof

Abstract

The invention discloses an interventricular septum puncture apparatus assembly and an intervention method thereof. The interventricular septum puncture apparatus assembly comprises a positioning sheathing canal, a puncture sheathing canal, a puncture guide wire and a ventricular protector. The head of the positioning sheathing canal can bend and eject at a target puncture part on an interventricular septum after the positioning sheathing canal enters a ventriculus dexter, meanwhile the ventricular protector is placed at the tip part of the ventriculus dexter through an atrial septum puncture approach for use, the puncture guide wire reaches the puncture part along the positioning sheathing canal and penetrates through the interventricular septum to enter a ventriculus sinister, the ventricular protector further punctures a ventricle rear wall after stopping the puncture guide wire from puncturing the interventricular septum, and the head of the positioning sheathing canal can further bend after the puncture sheathing canal penetrates through the interventricular septum along the puncture guide wire through the positioning sheathing canal and enters the ventriculus sinister. By means of the interventricular septum puncture apparatus assembly, the accuracy of the puncture position can be ensured, and meanwhile it is avoided that the ventricle is punctured through during puncturing and the ventricle rear wall is injured.

Description

technical field [0001] The invention belongs to the field of biomedical instruments, and in particular relates to an interventricular septum puncture instrument assembly and an intervention method thereof. Background technique [0002] Mitral valve insufficiency is a common heart disease, and conventional surgical operations are traumatic and risky. Transcatheter interventional technique for mitral valve repair is minimally invasive and safe, and is an ideal alternative therapy. At present, transcatheter repair of mitral valve is performed by transapical puncture or transseptal puncture. The former needs to enter the chest cavity through a surgical incision, but repair operations such as double holes and artificial chordae can be performed. Although the latter has no incision, Puncture through the femoral vein can implement double-hole treatment, but it is difficult to repair the chordae. A new type of puncture component is urgently needed to overcome the above problems. ...

AI Technical Summary

Problems solved by technology

[0002] Mitral valve insufficiency is a common heart disease, and conventional surgical operations are traumatic and risky

At present, transcatheter repair of mitral valve is performed by transapical puncture or transseptal puncture. The former needs to enter the chest cavity through a surgical incision, but repair operations such as double holes and artificial chordae can be performed. Although the latter has no incision, Puncture through the femoral vein can implement double-hole treatment, but it is difficult to repair the chordae, and a new type of puncture component is urgently needed to overcome the above problems

[0003] None of the puncture instruments used in the prior art can prevent the back wall of the heart from being punctured during puncture. In the previous patent application document named puncture needle assembly with application number 201410417903.X, the delivery steel cable used The outer connection has a directional locator, through which the space position of the puncture target can be selected and the direction of the puncture needle tip can be limited, but it still cannot solve the problem of preventing the back wall of the heart from being pierced during puncture. Therefore, a set of interventricular septal puncture is urgently needed The device components can not only ensure the accurate puncture position, but also ensure that the puncture needle will not damage the posterior wall of the heart during ventricular septal puncture.

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