Active fixation of left ventricular pacing leads

Abstract

The invention provides an actively-fixed left ventricle pacing electrode lead. The actively-fixed left ventricle pacing electrode lead comprises a connector, a lead body, a ring electrode and a fixing device; the lead body comprises an outer lead layer and an inner lead layer, the outer lead layer enables the ring electrode to be connected with the positive electrode of the connector, the inner lead layer enables the fixing device to be connected with the negative electrode of the connector, and the fixing device is formed by winding metal. The actively-fixed left ventricle pacing electrode lead has the advantages that the problem that electrodes are prone to dislocation in the operation process can be solved, and the success rate of an operation is effectively increased; meanwhile, the actively-fixed left ventricle pacing electrode lead is good in pacing and sensing effect, effectively improves the living quality of patients and is safe, effective and convenient and easy to use.

Description

【Technical field】 [0001] The invention relates to the technical field of medical devices, in particular to an active fixed left ventricular pacing electrode lead. 【Background technique】 [0002] Cardiac resynchronization therapy has become an important treatment for patients with heart failure. During the treatment process, it is necessary to implant pacing electrode wires connected to the pulse generator into the right atrium, left and right ventricle respectively, so that the heart can contract synchronously, and then Treat heart failure. Transvenous implantation of left ventricular pacing leads along the coronary sinus is the key to resynchronization therapy. However, more and more clinical experience shows that there are some insurmountable problems in the traditional transcoronary implantation of left ventricular electrodes: Since most left ventricular pacing electrodes are passive electrodes, it is difficult to locate during surgery, and the subsequent dislocation rat...

AI Technical Summary

Problems solved by technology

Transvenous implantation of left ventricular pacing leads along the coronary sinus is the key to resynchronization therapy. However, more and more clinical experience shows that there are some insurmountable problems in the traditional transcoronary implantation of left ventricular electrodes: Since most left ventricular pacing electrodes are passive electrodes, it is difficult to locate during surgery, and the subsequent dislocation rate is relatively high, which eventually leads to failure of left ventricular electrode implantation

At present, the technical improvement to solve this problem is mainly to design the head end of the electrode wire into multiple curved shapes or increase the diameter of the electrode wire to solve it. However, due to the limitation of its structure, the problem of dislocation of the electrode has not been effectively solved.

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