Safety protection spiral electrode

Abstract

The invention relates to a safety protection spiral electrode. The spiral electrode comprises a lead, a spiral needle, a rotating handle and a lower housing. The bottom of the rotating handle is detachably connected with a through hole in a top cover of the lower housing; a spiral needle mounting block is arranged in the rotating handle, and the spiral needle and the lead are electrically connected and mounted on the spiral needle mounting block; the outer side wall of the spiral needle mounting block and the inner side wall of the rotating handle are correspondingly provided with shape matching parts, and the shape matching parts ensure that relative displacement in the circumferential direction of the spiral needle mounting block does not happen between a spiral electrode body and the rotating handle. The spiral needle is positioned in the lower housing, the inner wall of the lower housing is provided with a plurality of limiting protrusions, the relative distance between every two adjacent limiting protrusions is smaller than the maximum spiral diameter of the spiral electrode body, the safety performance is great, and therefore the problems of occupational exposure, cross infection and the like which are possibly caused by medical instruments after use are effectively avoided.

Description

Technical field [0001] This application relates to the technical field of medical devices, in particular to provide a safety protection spiral electrode. Background technique [0002] The needle electrode is a commonly used medical sensor device. In the detection of bioelectricity or electrical stimulation, the electrode is the link between the instrument system and the biological body. The purpose of the electrode is to directly extract electrical signals from the organism. When using electrodes to obtain electrical signals on a biological body, the characteristics of the object to be measured are different, and the electrode structure used is also different. When detecting the potential of a single cell or the deep part of a tissue, a microelectrode is used; when measuring the electrical activity of a local area of ​​the tissue, a needle electrode is used; when measuring the potential of a biological body surface, a body surface electrode can be used. [0003] Medical needle e...

AI Technical Summary

Problems solved by technology

[0005] However, the current spiral electrode has the following defects: the tapered handle and the spiral needle are integrated, cannot be separated, and have a large volume. During the operation, it prevents the laying of sterile surgical towels, the surgical incision, and the surgical operation, which hinders the surgical operation.

On the other hand, it is not easy to disinfect, which is easy to cause infection and increase the complications and risks of patients.

The current spiral electrode does not have an anti-stab device, and it is easy to stab other people before and after use, increasing the risk of occupational exposure and cross-infection

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