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Device and method for ablation of hypertrophic obstructive cardiomyopathy

A cardiomyopathy and hypertrophy technology, applied in the direction of catheters, guide wires, etc., can solve the problem of large surgical trauma and achieve the effect of easy and precise control

Pending Publication Date: 2020-11-27
龙德勇 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surgical septal resection is effective immediately, but the surgical trauma is large

Method used

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  • Device and method for ablation of hypertrophic obstructive cardiomyopathy
  • Device and method for ablation of hypertrophic obstructive cardiomyopathy
  • Device and method for ablation of hypertrophic obstructive cardiomyopathy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] refer to Figure 1 to Figure 18 , an embodiment of the present invention provides a hypertrophic obstructive cardiomyopathy ablation device, including: an adjustable sheath 10, an inner sheath 20, a guide wire 30 and a mapping catheter 40; the inner sheath 20 and the mapping catheter The outer diameter of 40 is smaller than the inner diameter of the adjustable sheath tube 10; the front end of the guide wire 30 is bent backward; the front end of the mapping catheter 40 is provided with an ablation needle 47 that can be extended, and the rear end of the ablation needle 47 is connected with a An anhydrous ethanol perfusion channel; a positioning system, electrically connected with the flexible sheath 10 and the mapping catheter 40, wherein the guiding wire 30 can move along the femoral vein to the right atrium, and the inner sheath 20 is embedded in the flexible sheath 10 Then, the flexible sheath 10 and the inner sheath 20 can move along the guide wire 30 to the front end...

Embodiment 2

[0092] Refer to 11 and Figure 12 The difference between this embodiment and Embodiment 1 is that there are three magnetic induction coils 170 in the conduit portion 42 , each magnetic induction coil 170 is electrically connected to the electrical signal processing device 80 , and the three magnetic induction coils 170 are perpendicular to each other.

[0093] In this scheme, refer to Figure 11 At the front end of the conduit portion 42, there are three copper magnetic induction coils 170 which are perpendicular to each other. There is a magnetic field generator device under the patient. The magnetic field generator device includes three magnetic field generators to generate magnetic fields of different frequencies. When the catheter part 42 moves in the magnetic field, it can generate a unique current signal in the x, y, and z axes, and generate space coordinates.

[0094] Refer to the structural diagram of the ablation device for hypertrophic obstructive cardiomyopathy in...

Embodiment 3

[0105] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that, in this embodiment, the ablation needle is connected to an external ablation energy generator to provide corresponding ablation energy to complete the ablation. Ablation energy generators include, but are not limited to, radiofrequency ablation instruments, pulsed electric field ablation instruments, and the like.

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Abstract

The invention relates to the field of medical equipment, and particularly relates to a device and a method for ablation of hypertrophic obstructive cardiomyopathy. The device for ablation of hypertrophic obstructive cardiomyopathy comprises an adjustable bent sheath tube, an inner sheath tube, a guide wire, a mapping catheter and a positioning system, wherein the outer diameter of the inner sheathtube and the outer diameter of the mapping catheter are smaller than the inner diameter of the adjustable bent sheath tube; the front end of the guide wire is bent backwards; an extensible ablation needle is arranged at the front end of the mapping catheter; the positioning system is electrically connected with the adjustable bent sheath tube and the mapping catheter; the guide wire can move to the right atrium along the femoral vein; the adjustable bent sheath tube and the inner sheath tube can move to the front end of the guide wire along the guide wire and move out of the inner sheath tubeand the guide wire; the mapping catheter can enter the right ventricle along the adjustable bent sheath tube; and the ablation needle extends into the ventricular septal hypertrophy part for ablationoperation after bending. With the adoption of the arrangement mode, the mapping catheter can be sent to a preset position through the femoral vein, the ablation needle extends into the ventricular septal hypertrophy part for ablation operation, and ablation is realized.

Description

technical field [0001] The present invention relates to the technical field of medical equipment, in particular, to a hypertrophic obstructive cardiomyopathy ablation device and a method of a hypertrophic obstructive cardiomyopathy ablation device. Background technique [0002] Hypertrophic cardiomyopathy (Hypertrophic cardiomyopathy) is a hereditary cardiomyopathy characterized by asymmetric hypertrophy of the ventricular septum and apical myocardium. The global prevalence is about 200 / 100,000, and China is about 80 / 100,000. 70% of patients with hypertrophic heart disease have left ventricular outflow tract pressure gradient (LVOTG) ≥ 30 mmHg at rest or during exercise, which belongs to obstructive hypertrophic cardiomyopathy (HOCM). Outflow tract obstruction will seriously affect the cardiac ejection function, resulting in insufficient blood supply to the patient's body, causing symptoms such as amaurosis and loss of consciousness, and increasing the risk of sudden death. ...

Claims

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Application Information

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IPC IPC(8): A61M25/00A61M25/01A61M25/09
CPCA61M25/0084A61M25/0068A61M25/0105A61M25/09A61M2025/0166
Inventor 李梦梦龙德勇桑才华蒋晨曦董建增马长生
Owner 龙德勇
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