Portable intraoperative motor nerve micro-current stimulator

Abstract

The utility model discloses a portable intra-operative motor nerve micro-current stimulator which comprises a detector, a loop electrode, a stimulation assembly, a loop wire and a stimulation wire. The front end of the detector is connected with the loop electrode and the stimulation assembly through a loop wire and a stimulation wire. The hand part is stimulated through the stimulation assembly, and meanwhile the loop electrode is fixed to the skin to form a loop; meanwhile, the fixing assembly is detachably installed on the outer side of the loop electrode, the loop electrode penetrating into the skin can be fixed through the arranged fixing assembly, the loop electrode is not prone to being pulled down, and compared with a traditional detector, effective fixing can be achieved, and the detection efficiency is improved. And the problem of prolapse caused by the use of the stimulating electrode at the front end is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a portable intraoperative motor nerve microcurrent stimulator. Background Art

[0002] Thyroid surgery is a surgical treatment for thyroid diseases such as thyroid nodules, thyroid tumors, hyperthyroidism, or hypothyroidism. The primary goal of surgery is to remove diseased tissue to restore normal thyroid function or prevent further progression of the disease. Depending on the condition, thyroid surgery can be divided into partial thyroidectomy and total thyroidectomy. Monitoring motor nerves during thyroid surgery is an important means of protecting critical nerves, reducing the risk of nerve damage, and improving surgical safety and success. With the continuous advancement and development of medical technology, nerve monitoring technology will play an even more important role in thyroid surgery.

[0003] Current motor nerve monitoring equipment is completed by a nerve monitor, which makes it easier for doctors to explore nerves to a certain extent; however, the existing nerve monitor is overall large in size and cannot be carried to primary hospitals for use; in addition, when using the existing nerve monitor, the loop electrode needle used for the loop cannot be effectively fixed when it is inserted into the patient's skin. As the front-end stimulation electrode is used, it is easy to be dragged and moved out of the patient's body. At this time, it not only needs to be reinserted for measurement, but also causes pain to the patient to a certain extent; therefore, the existing detection instruments still have defects to a certain extent.

[0004] Therefore, a portable intraoperative motor nerve microcurrent stimulator is needed to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention designs a portable intraoperative motor nerve microcurrent stimulator, comprising: a detector, a loop electrode, a stimulation component, a loop wire, and a stimulation wire; the front end of the detector is connected to the loop electrode and the stimulation component via the loop wire and the stimulation wire, respectively; the stimulation component is used to stimulate the hand while the loop electrode is fixed on the skin to form a loop;

[0006] A fixing assembly is detachably mounted on the outer side of the return electrode. The fixing assembly includes a fixing plate and a reinforcement strip. A through slot is formed in the middle of the fixing plate. Fixing heads are symmetrically mounted on both side walls of the through slot. The fixing heads are in the shape of a teardrop and are driven by the bending of the fixing plate to clamp the return electrode.

[0007] Furthermore, the front end of the loop electrode is a curved structure, and barbs are symmetrically fixedly installed on the two side walls away from the tip of the loop electrode;

[0008] Furthermore, the stimulation component includes an operating rod and a stimulation head; the stimulation wire is inserted into the rear end of the operating rod, and the front end of the operating rod is inserted into the rear end of the stimulation head, and the front end of the stimulation head is a pointed end;

[0009] Furthermore, a sounder and an indicator light are fixedly mounted on the side end wall of the detector body, and a start switch is fixedly mounted on the side wall perpendicular to the sounder and the indicator light;

[0010] Furthermore, the fixing plate is made of memory metal material.

[0011] The beneficial effects of the utility model are:

[0012] The present invention relates to a portable intraoperative motor nerve microcurrent stimulator, comprising: a detector, a loop electrode, a stimulation component, a loop wire, and a stimulation wire; the front end of the detector is connected to the loop electrode and the stimulation component through the loop wire and the stimulation wire respectively; the stimulation component is used to stimulate the hand and the loop electrode is fixed on the skin to form a loop; at the same time, the present invention is detachably provided with a fixing component on the outside of the loop electrode, and the fixing component can be used to fix the loop electrode inserted into the skin, so that it is not easily pulled. Compared with traditional detectors, it can be effectively fixed and will not cause the problem of dislodging with the use of the stimulation electrode at the front end; in addition, the present invention performs detection through the provided stimulation component, and at the same time, the stimulation component can directly connect or remove the operating rod, and can perform fixed connection detection on soft tissue. The operating rod can be held for operation and detection, and a barb is provided at the front end, and the stability of use can be further improved by the barb; and the present invention is easy to carry and small in size. Compared with traditional nerve monitors, it can be carried around, which is convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of a portable intraoperative motor nerve microcurrent stimulator;

[0015] Figure 2 This is a schematic diagram of the overall structure of a detector for a portable intraoperative motor nerve microcurrent stimulator;

[0016] Figure 3 This is a schematic diagram of the structure of the loop electrode of a portable intraoperative motor nerve microcurrent stimulator;

[0017] Figure 4An exploded view of the detection components of a portable intraoperative motor nerve microcurrent stimulator;

[0018] Figure 5 This is a schematic diagram of the structure of the fixed components of a portable intraoperative motor nerve microcurrent stimulator;

[0019] Figure 6 It is a schematic diagram of the structure of the detection component of a portable intraoperative motor nerve microcurrent stimulator;

[0020] Figure 7 A partial cross-sectional schematic diagram of the fixing components of a portable intraoperative motor nerve microcurrent stimulator;

[0021] Figure 8 The present invention is a partial cross-sectional schematic diagram of the fixed components of a portable intraoperative motor nerve microcurrent stimulator when in use.

[0022] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0023] 1-Detector, 11-Sounder, 12-Indicator light, 13-Start switch, 2-Loop wire, 21-Loop electrode, 22-Fixed assembly, 221-Fixed plate, 222-Reinforcement belt, 223-Through groove, 224-Fixed head, 3-Stimulation wire, 31-Stimulation assembly, 311-Tapered plug, 312-Operating rod, 313-Stimulation head, 314-Stimulation electrode, 315-Barb. DETAILED DESCRIPTION Example 1

[0024] The utility model discloses a portable intraoperative motor nerve microcurrent stimulator, comprising: a detector 1, a loop electrode 21, a stimulation component 31, a loop wire 2, and a stimulation wire 3; the front end of the detector 1 is connected to the loop electrode 21 and the stimulation component 31 via the loop wire 2 and the stimulation wire 3, respectively; the stimulation component 31 is used to stimulate the hand while the loop electrode 21 is fixed to the skin to form a loop; the stimulation component 31 is provided for detection, and while detecting, the stimulation component 31 can directly connect or remove an operating rod 312, enabling fixed connection detection of soft tissue, and operating detection by holding the operating rod 312, thereby meeting different detection needs, such as fixed point detection and multi-point mobile detection. The fixing plate 221 is made of a memory metal material, and the alloy material can make it resilient, making it easy to operate and use. Specifically, the memory metal material can be a copper-based shape memory alloy, an iron-based shape memory alloy, etc.

[0025] A fixing assembly 22 is detachably mounted on the outer side of the loop electrode 21. The fixing assembly 22 includes a fixing plate 221 and a reinforcement strip 222. A through slot 223 is formed in the middle of the fixing plate 221. Fixing heads 224 are symmetrically mounted on both side walls of the through slot 223. The fixing heads 224 are drop-shaped and are driven by the bending of the fixing plate 221 to clamp the loop electrode 21. The fixing assembly 22 can secure the loop electrode 21 inserted into the skin, preventing it from being pulled. Compared to conventional detectors, this can effectively secure the loop electrode 21 and prevent the front-end stimulation electrode 314 from falling out when in use.

[0026] In this embodiment, the front end of the loop electrode 21 is a curved structure, which allows it to be fixed relative to the skin area when fixed. Barbs 315 are symmetrically fixedly installed on the two side walls away from the tip of the loop electrode. The provided barbs 315 can ensure that it forms a more stable contact with the patient's skin.

[0027] In addition, it is taken into consideration that the front end of the loop electrode is a curved structure. If it is too curved, it will be unusable (such as a fishhook shape). If it is not curved enough, it will fall off when slightly pulled. Therefore, in this embodiment, the front end of the loop electrode is made into a curved structure and the curvature is 0.87 radians (the actual radius of the loop electrode is 2 cm, and the angle is 50°) so that it can be better used. At the same time, the problem of the set barb 315 is taken into consideration. Although the setting of the barb 315 can form a good fixing effect after being inserted, it will inevitably cause damage to the patient's skin when it retracts. In order to reduce this damage, the barb 315 is set on the two side walls away from the tip of the loop electrode to reduce the damage to the patient's skin during fixation. Setting it at the end can achieve fixation while minimizing the damage caused by the barb 315 to the greatest extent. Example 2

[0028] In this embodiment, the stimulation component 31 based on Example 1 includes an operating rod 312 and a stimulation head 313; the stimulation wire 3 is inserted into the rear end of the operating rod 312, and the front end of the operating rod 312 is inserted into the rear end of the stimulation head 313. The front end of the stimulation head 313 is a pointed end, and the setting of the pointed end facilitates the insertion of the stimulation head 313; specifically, when in use, the operating rod 312 in the stimulation component 31 can be used according to different situations. When fixed detection is required (the position is relatively fixed and there are few positions to change), the operating rod 312 is removed and the front end of the stimulation wire 3 is directly inserted into the rear end of the stimulation head 313; when multi-point transformation detection is required, there is no need to remove the operating rod 312, and the transformation detection can be performed directly by hand; through such a setting, different detection needs can be met.

[0029] In addition, in this embodiment, in order to further facilitate detection, a sound generator 11 and an indicator light 12 are fixedly installed on the side end wall of the detector 1 body, and a start switch 13 is fixedly installed on the side wall perpendicular to the sound generator 11 and the indicator light 12; the sound generator 11 can make a sound when there is neural signal feedback, and the indicator light 12 can light up at the same time, replacing the traditional detector with simple feedback. This method can not only realize the detection function, but also can be carried with you, which is convenient and quick to use.

[0030] The operating principle of the present invention is as follows: after the preparation work is completed, the loop electrode 21 is inserted into the patient's skin, and then the fixing component 22 is bent to use the fixing head 224 and the reinforcement belt 222 on the fixing component 22 to fix the loop electrode 21. After fixation, the connection method of the stimulation component 31 can be selected according to the actual detection needs. When fixed detection is required (the position is relatively fixed and the position changes less), the operating rod 312 is removed, and the front end of the stimulation wire 3 is directly inserted into the rear end of the stimulation head 313; when multi-point change detection is required, there is no need to remove the operating rod 312, and the change detection can be performed directly by hand; after use, untie the reinforcement belt 222, bend the fixing component 22 again, and then pull out the loop electrode 21 and the stimulation electrode 314.

[0031] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to only the specific implementation methods described.

Claims

1. A portable intraoperative motor nerve microcurrent stimulator, characterized in that: include: A detector, a loop electrode, a stimulation component, a loop wire, and a stimulation wire; the front end of the detector is connected to the loop electrode and the stimulation component via the loop wire and the stimulation wire, respectively; the stimulation component is used to stimulate the hand while the loop electrode is fixed to the skin to form a loop; A fixing component is detachably installed on the outer side of the loop electrode, and the fixing component includes a fixing plate and a reinforcement belt. A through groove is opened in the middle of the fixing plate, and fixing heads are symmetrically installed on the two side walls of the through groove. The fixing heads are in the shape of a teardrop, and the fixing heads are driven by the bending of the fixing plate to clamp the loop electrode.

2. A portable intraoperative motor nerve microcurrent stimulator according to claim 1, characterized in that: The front end of the loop electrode is a curved structure, and barbs are symmetrically fixedly installed on the two side walls away from the tip of the fixed electrode.

3. The portable intraoperative motor nerve microcurrent stimulator according to claim 1, characterized in that: The stimulation component includes an operating rod and a stimulation head; the stimulation wire is inserted into the rear end of the operating rod, the front end of the operating rod is inserted into the rear end of the stimulation head, and the front end of the stimulation head is a pointed end.

4. The portable intraoperative motor nerve microcurrent stimulator according to claim 1, characterized in that: A sounder and an indicator light are fixedly mounted on the side end wall of the detector body, and a start switch thereof is fixedly mounted on the side wall perpendicular to the sounder and the indicator light.

5. The portable intraoperative motor nerve microcurrent stimulator according to claim 1, characterized in that: The fixing plate is made of memory metal material.

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