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An electrode and electrode wire technology, which is applied in the field of medical devices, can solve the problems that electrodes are not easy to be permanently fixed, complicated to operate, easy to fall off or shift, etc.
Pending Publication Date: 2022-07-12
ZHONGNAN HOSPITAL OF WUHAN UNIV
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Problems solved by technology
These three kinds of electrodes are not easy to be permanently fixed on the nerve, and are easy to fall off or shift
The C-shaped electrode wraps around the auditory nerve in a pincer shape. It clamps the auditory nerve through the force of the torsion spring. The inner electrode sheet can be close to the nerve, but a special pulling device is required to open the el
Method used
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Embodiment 1
[0033] Example 1, as Figure 1 to Figure 4 As shown, a C-shaped electrode includes a clip body 1 and an electrode wire 2; the clip body 1 includes a clip body 11 and a clip handle 12 connected to each other, the clip body 11 is C-shaped, and the minimum inner diameter of the clip body 11 is to be measured. One end of the electrode wire 2 is connected to the wire 3, and the other end extends along the clip body 11, including an embedded part 21 embedded in the clip body 11 and a contact part 22 protruding from the inner surface of the clip body 11, and the contact part 22 is elastic structure.
[0034] When in use, the clamp handle 12 can be clamped by the clamp applicator, the clamp body 11 can be opened, and the clamp body 11 can be clamped on the nerve or blood vessel to be measured, such as the vestibulocochlear nerve, the electrode wire 2. The contact part 22 is in contact with the object to be tested, and the inner diameter of the clip body 11 is set to the maximum diame...
Embodiment 2
[0035] Example 2, as Figure 1 to Figure 4 As shown, this embodiment is a further improvement carried out on the basis of Embodiment 1, and the details are as follows:
[0036] The clip body 11 is a cylindrical structure with an opening, the object to be tested is generally a nerve or a blood vessel, and the cylindrical structure can better match the object to be tested.
Embodiment 3
[0037] Example 3, as Figure 1 to Figure 4 As shown, this embodiment is a further improvement carried out on the basis of Embodiment 2, and the details are as follows:
[0038] The contact portion 22 is a helical structure, and the axis of the helical structure intersects perpendicularly with the axis of the clamping body 11 .
[0039] The contact portion 22 can elastically deform in the direction perpendicular to the axis of the clamp body 11 , and when the contact portion 22 contacts the object to be tested, it can be compressed to avoid damage to the object to be tested by the electrode wire 2 .
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Abstract
The invention relates to a C-shaped electrode which comprises a clamp body and an electrode wire. The clamp body comprises a clamp body and a clamp handle which are connected with each other, the clamp body is C-shaped, and the minimum inner diameter of the clamp body is the maximum value of the diameter of an object to be measured; one end of the electrode wire is connected with the wire, the other end of the electrode wire extends along the clip body, the electrode wire comprises an embedding part embedded into the clip body and a contact part extending out of the inner surface of the clip body, and the contact part is of an elastic structure. The object to be measured compresses the contact part of the electrode wire, the top of the contact part is tightly attached to the object to be measured, and due to the fact that the elastic coefficient of the electrode wire is low and the pressure borne by the object to be measured is small, the structure can record electric signals of the object to be measured permanently and stably without damaging the object to be measured; in addition, due to the structure of the C-shaped body, the electrode can be clamped on an object to be detected more conveniently, and meanwhile the object to be detected can be prevented from being damaged.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to a C-shaped electrode. Background technique [0002] Auditory monitoring technology is mainly used in cerebellopontine angle surgery to protect hearing by monitoring and early warning of the auditory pathway during surgery. Common auditory monitoring techniques include auditory brainstem response, cochlear electrogram, direct action potential monitoring of auditory nerve, and otoacoustic emission of distortion products. Among them, direct action potential monitoring of auditory nerve has a large signal-to-noise ratio, rapid damage feedback, and is the most real-time and accurate. The main structure of the vestibulocochlear nerve recording electrode used in this technique is platinum-silver bipolar electrode wire or electrode sheet. [0003] The existing cochlear nerve direct action potential recording electrodes include spherical electrodes, brush electrodes, rod electrod...
Claims
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Application Information
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