Conducting-wire-free pacemaker and conducting-wire-free pacing system

Abstract

The invention provides a conducting-wire-free pacemaker and a conducting-wire-free pacing system. The conducting-wire-free pacemaker uses an umbrella-shaped structural design, and comprises a conducting-wire-free pacing device positioned on the umbrella handle and a support device positioned on the umbrella surface; the support device can fix the conducting-wire-free pacing device onto a specifiedposition; side effects caused by a conventional electrode conducting wire are eliminated. Meanwhile, compared with other conducting-wire-free pacemakers used for the ventriculus dexter (particularlyright ventricular apex), the conducting-wire-free pacemaker has the advantages that the umbrella-shaped structure is used, so that the contact area with the heart tissue is greater; the fixation stability is higher, so that the conducting-wire-free pacemaker can be used in a position of auricula dextra near the sinoatrial node, the pacing sequence better conforming to the physiologic performance can be provided, and the harm to the heart is reduced accordingly. The conducting-wire-free pacing system provided by the invention uses the conducting-wire-free pacemaker; a special conveyor and a guide device are configured for the conducting-wire-free pacemaker, so that the implementation of the conducting-wire-free pacemaker becomes more convenient and more precise.

Description

technical field [0001] The invention relates to the technical field, in particular to a leadless pacemaker and a leadless pacing system. Background technique [0002] The cardiac pacemaker system can treat irreversible cardiac pacing and conduction dysfunction heart diseases caused by various reasons, can effectively reduce the risk of death in patients with severe bradycardia, and improve the quality of life of patients. The traditional cardiac pacemaker system is a wired system, which generally includes two parts: a pacemaker (pulse generator) and an electrode wire. The pacemaker generates electrical pulses, which are conducted by the electrode wires to the electrodes in contact with the myocardium. , and then stimulate the myocardium, making the heart excited and contracted. But it has the following defects: (1) Due to the existence of electrode wires, it is easy to cause side effects such as electrode dislocation, wire breakage, heart perforation, and venous thrombosis ...

AI Technical Summary

Problems solved by technology

But it has the following defects: (1) Due to the existence of electrode wires, it is easy to cause side effects such as electrode dislocation, wire breakage, heart perforation, and venous thrombosis in the wire path, which not only affects the normal work of the pacemaker, but also seriously endangers the life and health of patients. and quality of life; (2) Electrode removal surgery is more difficult and needs to be completed by skilled doctors in a larger electrophysiology center

Normal cardiac pacing starts from the sinoatrial node of the atrium, and the automatically generated excitement is transmitted along its conduction bundle (atrioventricular node-left and right bundle branch-Purkinje fibers) to various parts of the heart to cause the excitement and contraction of the whole heart. Cardiac physiology and pathophysiology studies have confirmed that the conduction direction of the excitation originating from the right apex of the right ventricle is contrary to the normal pacing sequence, that is, unphysiological pacing will lead to asynchronous ventricular contraction, and long-term right ventricular right apex pacing will lead to ventricular contraction. Structural remodeling and electrical remodeling of muscle tissue will eventually damage heart function, easily lead to atrial fibrillation, heart failure and even increase the risk of death

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