Suture-free detachable epicardial temporary pacing lead

Abstract

The invention discloses a suture-free detachable epicardial temporary pacing lead. The epicardial temporary pacing lead comprises an epicardial electrode end, a connecting wire and a pacemaker connecting end, the epicardial electrode end, the connecting wire and the pacemaker connecting end are connected to form a linear structure, and a biodegradable carrier is arranged on the epicardial electrode end and is adhered to the epicardial through the biodegradable carrier. The pacing wire is composed of an epicardial electrode end, a connecting wire and a pacemaker connecting end. A degradable material is used as an electrode carrier of an epicardial electrode end; the electrode can be pasted and fixed on the epicardium; the electrode is isolated from surrounding tissues while the contact areabetween the electrode and the myocardium is increased, so that the electrode sensing capability is improved, the diaphragm function is prevented from being influenced by electrode discharge, the traditional suture mode for fixing the electrode can be avoided, and the problems of suture bleeding and difficulty in detaching the implanted electrode are solved.

Description

technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to a temporary epicardial pacing lead which can be removed without suturing. Background technique [0002] In complicated congenital or acquired open-heart surgery, placing epicardial temporary pacing leads is an effective method to deal with complications such as postoperative arrhythmia. In addition, temporary epicardial pacing therapy is also suitable for cardiovascular medicine, difficulties in transvenous implantation (such as persistent left superior vena cava combined with absence of right superior vena cava), repeated dislocation of transvenous lead wires, etc., which require temporary pacing therapy. its irreplaceable method. [0003] At present, the temporary pacing lead wire used in open heart surgery is a braided guide wire with a suture needle, and the epicardial electrode (steroid-eluting epicardial electrode 4965) used in cardiology is also sutured and fi...

AI Technical Summary

Problems solved by technology

[0004] The traditional pacing lead implantation method has obvious limitations, mainly including: 1) For special cases such as complete thoracoscopic surgery, thoracoscopic-assisted minimally invasive cardiac surgery, robot-assisted cardiac surgery, etc., epicardial temporary pacing lead Implantation is very difficult, and the operating field of view is narrow. After cardiac resuscitation, once bleeding occurs, it may even lead to a second thoracotomy to stop bleeding; 2) Since the electrode at the suture end is directly exposed, it is in direct contact with the myocardium and surrounding tissues at the same time. In the observed cases, there were cases where the discharge of the epicardial pacing lead affected the function of the diaphragm; 3) The electrode at the suturing end was fixed by a single lead with a small contact area, and poor pacing perception was common in clinical observation cases; Temporary pacing wire implantation method, the pacing wire needs to be permanently indwelled in the body, and cannot be taken out. Clinically observed cases, there are cases where the wire is forcibly pulled out and the heart is bleeding, so the thoracotomy is performed to stop the bleeding.

In addition, some cases have been observed where debridement was required due to infection of the pacing leads

Images