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Transcatheter interventional atrial septostomy device

A technique of catheter intervention and interatrial septum, which is applied in the field of medical devices, can solve problems such as heart tissue tearing and damage, and achieve the effects of controllable stoma size, avoiding embolism, and avoiding device falling off

Pending Publication Date: 2019-07-05
HANGZHOU NOYA MEDTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to provide a stoma size controllable and non-retractable device for the defects in the prior art that easily cause heart tissue tearing and damage, stoma retraction after surgery, and embolism caused by setting shunt devices. A transcatheter atrial septostomy device that does not cause cardiac tissue tearing and damage

Method used

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  • Transcatheter interventional atrial septostomy device
  • Transcatheter interventional atrial septostomy device
  • Transcatheter interventional atrial septostomy device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like Figure 1-4 As shown, a transcatheter atrial septostomy device includes a catheter body 110 and a radially inflatable balloon 120 fixed on the distal end of the catheter body 110; the balloon 120 is provided with a The stoma 101 expands the atrial septal tissue radially and stretches the atrial septal tissue apart. The stoma 101 is provided at least on the outer surface of the balloon 120 along a circle in the circumferential direction, and is electrically connected to the ablation power supply and the control mechanism. The electrode assembly 130 ; the catheter main body 110 is provided with a guide wire lumen 113 through both ends and a filling lumen 114 for filling the balloon 120 along the axial direction.

[0052] like Figure 1-4 As shown, the catheter body 110 is used to realize the support and delivery functions of the balloon 120. It is a tubular structure with a lumen inside it. According to different functions, the catheter body 110 is at least provided...

Embodiment 2

[0063] This embodiment is an improvement based on the first embodiment.

[0064] like Figure 5-11 As shown, a transcatheter atrial septostomy device includes a catheter body 110 and a radially inflatable balloon 120 fixed on the distal end of the catheter body 110; the balloon 120 is provided with a The stoma 101 expands the atrial septal tissue radially and stretches the atrial septal tissue apart. The stoma 101 is provided at least on the outer surface of the balloon 120 along a circle in the circumferential direction, and is electrically connected to the ablation power supply and the control mechanism. The electrode assembly 130 ; the catheter main body 110 is provided with a guide wire lumen 113 through both ends and a filling lumen 114 for filling the balloon 120 along the axial direction.

[0065] The difference from Embodiment 1 is that the balloon 120 is provided with a positioning mechanism for positioning the electrode assembly 130 relative to the atrial septal tis...

Embodiment 3

[0070] This embodiment is improved on the basis of Embodiment 1:

[0071] like Figure 12-15 As shown, a transcatheter atrial septostomy device includes a catheter body 110 and a radially inflatable balloon 120 fixed on the distal end of the catheter body 110; the balloon 120 is provided with a The stoma 101 expands the atrial septum and expands the atrial septal tissue radially. The stoma 101 is provided with electrodes electrically connected to the ablation power supply and the control mechanism at least on the outer surface of the balloon 120 along the circumference. Assembly 130 ; the catheter body 110 is axially provided with a guide wire lumen 113 through which two ends pass through and a filling lumen 114 for filling the balloon 120 .

[0072]On the outer surface of the balloon 120, three sets of electrode groups uniformly distributed along the axis are arranged, and the three sets of electrode groups are arranged in parallel in the axial direction. Each electrode gro...

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Abstract

The present invention discloses a transcatheter interventional atrial septostomy device. The transcatheter interventional atrial septostomy device comprises a catheter body and a radially expandable balloon sleeving and fixed on a distal end of the catheter body; the balloon is provided with a stoma portion for passing through atrial septum and radially expanding to open the atrial septum tissue,and the stoma portion is at least provided with electrode assemblies electrically connected to ablation power sources and control mechanisms along a circumferential direction on an outer surface of the balloon; and the catheter body is axially provided with a guide wire chamber with both ends in a penetrating manner and a filling chamber for filling the balloon. Aiming at defects that in the priorart, tear and damage of heart tissues and stoma retraction after surgery are easily caused and arranged shunt devices lead to embolization, the transcatheter interventional atrial septostomy device is controllable in stoma sizes and free of retraction and does not cause the tear and damage of the heart tissues.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a catheter-introduced device which can be used for atrial septostomy. Background technique [0002] Atrial septostomy is an opening in the patient's atrial septum to improve abnormal hemodynamics and hypoxemia. Atrial septostomy can form a right-to-left shunt to treat pulmonary hypertension; it can also form a left-to-right shunt , so as to treat left heart failure. [0003] Traditional methods of transcatheter intervention for atrial septostomy include balloon atrial septostomy, balloon dilation atrial septostomy and atrial septotomy. [0004] Balloon atrial septostomy: After percutaneous puncture, a balloon catheter is inserted through the femoral vein, reaching the right atrium through the inferior vena cava, pointing to the atrial septum, and reaching the left atrium through the foramen ovale or small atrium. Once the balloon catheter reaches the left at...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/1492A61B2018/00351A61B2018/00589A61B2018/00077A61B2018/00023A61B2018/00791
Inventor 王永胜吴俊飞董元博
Owner HANGZHOU NOYA MEDTECH CO LTD
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