A dry defibrillation electrode

Abstract

The invention discloses a dry-type defibrillation electrode, which comprises an actuator, a stopper, an energy storage device, a storage bin, and a treatment electrode; the actuator is a displacement output device, fixed on the outer surface of the storage bin, and the stopper Reliable connection, the treatment electrode is located inside the storage compartment, and the accumulator is located between the inner surface of the storage compartment and the treatment electrode; the stopper includes a limit undercut, which is formed by part of the stopper passing through the opening on the surface of the storage compartment and extending into the interior of the storage compartment ; The position of the treatment electrode is lower than the limit undercut; and the edge of the limit undercut is located in the projection plane of the movement direction of the treatment electrode; when defibrillation is performed, the actuator generates a displacement, and the limiter slides outward, when the limit When the undercut edge is completely away from the projected surface of the moving direction of the treatment electrode, the energy accumulator releases compression energy, so that the flexible pole piece is attached to the skin. The invention does not need a conductive medium, reduces production and use costs; avoids issues such as shelf life, skin allergies, and difficulty in removing residual conductive medium caused by the conductive medium, and improves system reliability.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a dry defibrillation electrode. Background technique [0002] Wearable automatic external defibrillator (WCD) can be effectively used for short-term risk prevention and ventricular fibrillation treatment of patients with high risk of sudden cardiac death in clinical practice. WCD equipment has monitoring and defibrillation functions, which ensures the life safety of patients with potential sudden cardiac death, and also allows doctors and nurses to better follow up with patients and provide rescue support when necessary. [0003] In the patent CN209333020U, an electrode system is described, which uses a fluid pump to generate pressure to release the conductive gel in the gel deployment container to the body of the subject. [0004] In the patent CN212631456U, a defibrillation ejection device is described. Under the control of the electromagnetic valve, the liquid com...

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Problems solved by technology

[0005] Both of the above two patents form a conductive path between the patient’s body and the WCD device by deploying a conductive medium, but the method of spraying the medium has the following problems: the product design is complicated and the overall cost is high; the built-in conductive medium needs to pay attention to its shelf life Problems; contact between conductive media and human skin can easily cause skin allergies in patients; it is difficult to remove residual conductive media after use

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