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Dual-electrode combined member and stimulation system

An assembly and double-electrode technology, applied in the field of medical devices, can solve the problems of provoking malignant arrhythmia, prolonging the QT interval, and free movement of electrodes, so as to reduce reactivity, reduce polarization potential and polarization impedance, and improve life expectancy prolonged effect

Pending Publication Date: 2017-08-01
刘志忠 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, at present, most of the implantation methods of left ventricular electrodes are through the coronary sinus epicardial route of the heart. It is inevitable that the implantation is difficult, the electrode is prone to free movement after implantation, the pacing threshold is high, and the QT Interval prolongation and the promotion of malignant arrhythmias and other defects

Method used

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  • Dual-electrode combined member and stimulation system
  • Dual-electrode combined member and stimulation system
  • Dual-electrode combined member and stimulation system

Examples

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Effect test

Embodiment 1

[0051] The first aspect of the present invention provides a dual-electrode assembly, which includes a first electrode 10 and a second electrode 20 made of conductive materials, the first electrode 10 is rod-shaped, which includes a top end 101, a middle part 103 and The bottom end 102 is provided with a penetrating structure for guiding energy to stimulate deep tissue and exert a fixation effect at the top end 101, and a fixing member 111 is provided at the bottom end 102; the second electrode 20 is a spiral electrode , and it is wound around the periphery of the first electrode 10 , one end of the second electrode 20 is fixed by a fixing member 111 , and the other end extends toward the top end 101 of the first electrode 10 .

[0052] As a preference of this embodiment, the above-mentioned first electrode 10 is preferably a screw-like electrode or a spindle-shaped electrode.

[0053] Wherein, the screw-like electrode 10 includes a rod body 10 made of conductive material, the ...

Embodiment 2

[0078] A second aspect of the invention provides a stimulus generator. The stimulation generator includes a dual-pulse generator combined working mode, referred to as a "dual-core" stimulation generator, referred to as a "dual-core" pacemaker when used in the heart; and / or a combination of multiple pulse generators (≧3 pulse generators) The working mode, referred to as "multi-core" stimulation generator, is referred to as "multi-core" pacemaker when it is used in the heart; the characteristics of the stimulation generator include: it can alternately emit pulse currents in opposite directions, that is, alternately change the polarity to emit stimulation pulse.

[0079] The stimulus generator also includes: 2 or more pulse circuits, such as Figure 7 shown.

[0080] The component connection circuit included in the stimulation generator provided by the present invention should not only be understood as Figure 7 As shown, it should be understood as any connection circuit inclu...

Embodiment 3

[0087] The third aspect of the present invention provides a stimulation system, including: a double-electrode assembly, a lead body, and a stimulation generator, wherein the double-electrode assembly and the stimulation generator are provided by the first and second aspects of the present invention.

[0088] The wire body includes a wire layer (30) inside the wire and a wire layer (60) outside the wire. The wire layer 30 in the wire body includes the first lead 107, the second lead 204 and insulating material, such as Image 6 and Figure 8 shown. The outer wire layer 60 of the wire includes a ring electrode (40), a third lead wire (401) connected to the ring electrode (40) and an insulating material. The ring electrode 40 , the screw-like electrode and the spiral-like electrode 20 are insulated from each other.

[0089] An internal thread structure 601 is provided on the inner peripheral surface of the outer layer of the distal end of the outer layer of the lead wire 60, p...

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Abstract

The invention relates to the field of medical instruments, discloses a dual-electrode combined member and a stimulation system, and aims at stimulating deep tissues, controllably stimulating two tissues and reducing tissue reaction and polarization impedance. The dual-electrode combined member comprises a screw type electrode or a spindle type electrode and a spiral electrode. The dual-electrode combined member, a stimulation generator and lead bodies form the stimulation system. The stimulation generator comprises a dual pulse output circuit (simply named "dual-core" heart pacemaker when it is used for the heart), and a new simulation mode through which electric pulses of opposite directions are alternately emitted is provided. The dual-electrode combined member and the stimulation system are preferably used for the ventricular septum to perform cardiac resynchronization therapy; and two brand-new cardiac synchronization modes are put forward: one mode is that left and right ventricular electrical stimulation pulses are emitted to control double ventricular electro-mechanical activity; and the other mode is that the cardiac muscle between the cathode and the anode in the ventricular septum is stimulated so that excitation is enabled to be spread to both ventricles from the ventricular septum.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a double-electrode assembly and a stimulation system. Background technique [0002] The biventricular pacing system used in the existing Cardiac Synchronization Therapy (CRT) method is expensive and the curative effect is far from satisfactory. First, 30-40% of the patients recommended by existing medical guidelines do not respond to treatment; second, when the left ventricular epicardium is stimulated, the pacing threshold is high and the electrical energy is exhausted quickly, which can easily lead to malignant arrhythmia; third. , Right ventricular apex, lateral basal epicardial pacing, contrary to the normal physiological depolarization sequence, needs to be improved. In addition, this method needs to place the left ventricular electrode in the coronary sinus system, which is cumbersome and prone to electrode dislocation. In some cases, the operation failed because of anatomic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61N1/362A61N1/05
CPCA61N1/05A61N1/0568A61N1/0587A61N1/08A61N1/362A61N1/3625
Inventor 刘志忠刘逸
Owner 刘志忠
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