Wireless pacemaker conveying catheter device controlled to turn by using memory alloy wires and production method

A technology of memory alloy wire and delivery catheter, which is applied in catheters, medical devices, electrotherapy, etc., can solve the problems of disconnection, corrosion of the connection between the pulse generator and the wire, and achieve improved applicability, wide application range, and enhanced The effect of connection strength

Inactive Publication Date: 2018-05-15
张海军
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although there are hundreds of thousands of routine pacemaker implantation operations every year, there are still some obvious deficiencies, such as the corrosion or even disconne

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  • Wireless pacemaker conveying catheter device controlled to turn by using memory alloy wires and production method
  • Wireless pacemaker conveying catheter device controlled to turn by using memory alloy wires and production method
  • Wireless pacemaker conveying catheter device controlled to turn by using memory alloy wires and production method

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Embodiment Construction

[0033] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0034] Fig. 2 is a schematic diagram of the appearance of a preferred embodiment of the delivery catheter device according to the present invention, the delivery catheter 200 has a distal end 210 and a proximal end 290, and 220, 230, 240 and 250 are respectively four sections of material changes of the catheter in the axial direction, Catheter segments with varying diameters, wherein the catheter segment 250 is made of biocompatible material with higher hardness, and the three catheter segments 220 , 230 and 240 are made of implantable materials with lower hardness than the catheter segment 250 . As an alternative, softer biocompatible materials m...

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Abstract

The invention belongs to the field of interventional medical apparatuses, and particularly relates to a wireless pacemaker conveying catheter device controlled to turn by using memory alloy wires anda production method. The conveying catheter device structurally comprises a control handle, a conveying catheter, a specific device at a far end of the catheter and a control system. The wireless pacemaker conveying catheter device is mainly characterized in that electric currents passing through the memory alloy wires are integrally controlled through the handle; the change of a different lengthof each alloy wire is realized to realize a bending function of the conveying catheter; moreover, a bending angle is displayed on a display screen of the control system, so as to realize the digital control of the bending angle, wherein the control system has data recording and uploading function, and can be used for recording and uploading an implantation path of a medical device, so as to optimize the implantation path, wherein the conveying catheter is produced through a way of firstly gluing and then carrying out thermal shrinkage in the production method. The wireless pacemaker conveyingcatheter device can be used for accurately, conveniently and quickly realizing the digital control of the bending function of the catheter, is used for shortening an implantation time and improving implantation safety, and has a better application prospect in the conveyance of a wireless pacemaker.

Description

technical field [0001] The invention belongs to the field of interventional medical devices, and in particular relates to a method for controlling bending and turning by memory alloy wires and a wireless pacemaker delivery catheter device prepared by lamination heat shrinkage technology. Background technique [0002] Cardiac arrhythmia refers to any one or more abnormalities in the site of cardiac rhythm origin and cardiac frequency, rhythm, and impulse conduction. It is one of the common clinical cardiovascular diseases and can be roughly divided into two types: functional and organic. The functional ones are mostly related to emotional agitation, mental stress, autonomic dysfunction, cardiac neurosis, etc.; the organic ones are mostly caused by coronary heart disease, rheumatic heart disease, cardiomyopathy, etc., especially in acute myocardial infarction, which is the cause of death. important reason. Every year, 17 million people die from cardiovascular diseases in the ...

Claims

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Application Information

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IPC IPC(8): A61N1/375A61M25/00
CPCA61M25/0009A61M25/0023A61M25/0043A61M2205/0266A61M2205/3368A61M2205/36A61M2210/125A61N1/3756A61M2210/005
Inventor 张海军侯文博李建文房艺周文秀王燕
Owner 张海军
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