Spinal cord electrical stimulation electrode slice convenient to accurately place

Abstract

The utility model aims to provide a spinal cord electrical stimulation electrode slice convenient to place accurately, and relates to the technical field of medical instruments, tubular channels are arranged on two sides of the electrode slice, when the electrode slice is used, the electrode slice extends into a spinal cord epidural space, and the spinal cord electrical stimulation electrode slice can be placed accurately by using an L-shaped adjusting rod of an existing tool. The electrode plate selectively extends into the tubular channels on the two sides of the electrode plate according to needs to toggle the electrode plate and adjust the position of the electrode plate, adjustment is more convenient, the electrical stimulation effect is improved, the fixing device is detachably arranged at the tail end of the electrode plate, the tail end of the electrode plate is clamped through the upper clamping plate and the lower clamping plate of the fixing device, and the fixing screw penetrates through the vertebral canal wall. And the upper end of the telescopic rod is nailed, so that the electrode plate is fixed, and the electrode plate is prevented from shifting to influence the electrical stimulation effect.

Description

Technical Field

[0001] The utility model relates to the technical field related to medical devices, and in particular to a spinal cord electrical stimulation electrode sheet which is convenient for accurate placement. Background Art

[0002] Spinal cord stimulation is a technique that implants stimulating electrodes in the epidural space of the spinal cord. The electrodes release weak electric current stimulation, which blocks the transmission of pain signals from the spinal cord to the brain, thereby achieving the purpose of controlling pain. At the same time, the stimulation of electric current can also promote the repair of one's own nerves.

[0003] The electrode used for spinal cord electrical stimulation is a sheet-like structure with a certain width and length. When delivering the electrode to the spinal cord, first a small opening is made on the spine, then the electrode is placed outside the dura mater inside the cone tube, and then the electrode is connected to an external battery to discharge the electrode using the battery.

[0004] However, when placing the electrode sheet, there may be a positional deviation when the electrode sheet is placed at a predetermined position. When there is a positional deviation of the electrode sheet, the electrode sheet must be taken out and then re-placed. When there is a positional deviation of the electrode sheet, it is inconvenient to adjust the electrode sheet. Utility Model Content

[0005] In view of the deficiencies of the prior art, the present invention provides the following technical solutions:

[0006] A spinal cord electrical stimulation electrode sheet that is easy to place accurately comprises an electrode sheet and an adjustment rod, tubular channels are arranged on both sides of the electrode sheet, and a fixing device is detachably mounted at the rear end of the electrode sheet, the fixing device comprises a telescopic rod, an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are connected by a clamping bolt, the clamping bolt thread passes through the lower clamping plate and is rotatably connected to the upper clamping plate, the distance between the upper clamping plate and the lower clamping plate is shortened by tightening the clamping bolt, and the electrode sheet is clamped and fixed at the rear end, the lower end of the telescopic rod is rotatably connected to the upper clamping plate, and a fixing screw is arranged at the upper end of the telescopic rod.

[0007] Furthermore, the adjustment rod is an L-shaped structure, and one end of the adjustment rod slides into the tubular channels on both sides of the electrode sheet.

[0008] Furthermore, a limit bolt is provided on the telescopic rod, and the extension and retraction of the telescopic rod is limited by tightening the limit bolt.

[0009] Furthermore, a plurality of electrodes are arranged on the electrode sheet, and an electrode wire is fixedly arranged at the tail end of the electrode sheet.

[0010] Furthermore, a serrated structure is provided on the bottom of the upper clamping plate and the top of the lower clamping plate.

[0011] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0012] The utility model provides tubular channels on both sides of the electrode sheet. When in use, the electrode sheet is extended into the spinal epidural space. By using an existing L-shaped adjustment rod as a tool, the electrode sheet can be selectively extended into the tubular channels on both sides of the electrode sheet as needed to move the electrode sheet and adjust the position of the electrode sheet. The adjustment is more convenient and the effect of electrical stimulation is improved. A fixing device is detachably provided at the tail end of the electrode sheet. The tail end of the electrode sheet is clamped by the upper and lower plates of the fixing device, and the fixing screw is nailed through the spinal canal wall and nailed into the upper end of the telescopic rod, so as to fix the electrode sheet and prevent the electrode sheet from shifting and affecting the electrical stimulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is an enlarged schematic diagram of the three-dimensional structure A of the utility model;

[0015] Figure 3 This is a schematic diagram of the top view of the electrode sheet of the utility model;

[0016] Figure 4 This is a schematic diagram of the side view structure of the electrode sheet of the utility model;

[0017] Figure 5 This is an enlarged schematic diagram of the side view structure B of the electrode sheet of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the fixing device of the utility model.

[0019] In the figure: electrode sheet-1, electrode wire-101, electrode-102, tubular channel-103, fixing device-2, telescopic rod-201, upper clamping plate-202, lower clamping plate-203, clamping bolt-204, fixing screw-205, limiting bolt-206, adjusting rod-3. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-6, a spinal cord electrical stimulation electrode sheet that is easy to place accurately, comprising an electrode sheet 1 and an adjusting rod 3, wherein a plurality of electrodes 102 are arranged on the electrode sheet 1, an electrode wire 101 is fixedly arranged at the tail end of the electrode sheet 1, tubular channels 103 are arranged on both sides of the electrode sheet 1, and a fixing device 2 is detachably installed at the tail end of the electrode sheet 1, wherein the fixing device 2 comprises a telescopic rod 201, an upper clamping plate 202 and a lower clamping plate 203, wherein the upper clamping plate 202 and the lower clamping plate 203 are connected by a clamping bolt 204, wherein the clamping bolt 204 is threaded through the lower clamping plate 203 and is rotatably connected to the upper clamping plate 202, and the distance between the upper clamping plate 202 and the lower clamping plate 203 is shortened by tightening the clamping bolt 204, thereby clamping and fixing the electrode sheet 1 at the tail end, wherein the lower end of the telescopic rod 201 is rotatably connected to the upper clamping plate 202, and a fixing screw 205 is arranged at the upper end of the telescopic rod 201;

[0023] In this embodiment, a limiting bolt 206 is provided on the telescopic rod 201, and the telescopic rod 201 is limited in extension and retraction by tightening the limiting bolt 206. The lower surface of the upper clamping plate 202 and the upper surface of the lower clamping plate 203 are both provided with a serrated structure, which can better clamp the electrode sheet 1;

[0024] In this embodiment, tubular channels 103 are set on both sides of the electrode sheet 1, and the adjusting rod 3 is an L-shaped structure. One end of the adjusting rod 3 slides into the tubular channels 103 on both sides of the electrode sheet 1. When in use, the electrode sheet 1 is inserted into the spinal epidural space. By using the existing tool L-shaped adjusting rod 3, the electrode sheet 1 is selectively inserted into the tubular channels 103 on both sides of the electrode sheet 1 as needed to adjust the position of the electrode sheet 1, which makes the adjustment more convenient and improves the effect of electrical stimulation. A fixing device 2 is detachably set at the tail end of the electrode sheet 1, and the tail end of the electrode sheet 1 is clamped by the upper splint 202 and the lower splint 203 of the fixing device 2, and the fixing screw 205 is nailed through the spinal canal wall and nailed into the upper end of the telescopic rod 201, so as to fix the electrode sheet 1 and prevent the electrode sheet 1 from shifting and affecting the electrical stimulation effect.

[0025] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A spinal cord electrical stimulation electrode sheet that is easy to place accurately, comprising an electrode sheet and an adjustment rod, characterized in that: Tubular channels are arranged on both sides of the electrode sheet, and a fixing device is detachably installed at the tail end of the electrode sheet, the fixing device comprises a telescopic rod, an upper clamping plate and a lower clamping plate, the upper clamping plate and the lower clamping plate are connected by a clamping bolt, the clamping bolt thread passes through the lower clamping plate and is rotatably connected to the upper clamping plate, the distance between the upper clamping plate and the lower clamping plate is shortened by tightening the clamping bolt, so that the electrode sheet is clamped and fixed at the tail end, the lower end of the telescopic rod is rotatably connected to the upper clamping plate, and a fixing screw is arranged at the upper end of the telescopic rod.

2. A spinal cord electrical stimulation electrode sheet that is easy to place accurately according to claim 1, characterized in that: A limit bolt is arranged on the telescopic rod, and the extension and retraction of the telescopic rod is limited by tightening the limit bolt.

3. A spinal cord electrical stimulation electrode sheet that is easy to place accurately according to claim 1, characterized in that: A plurality of electrodes are arranged on the electrode sheet, and an electrode wire is fixedly arranged at the tail end of the electrode sheet.

4. A spinal cord electrical stimulation electrode sheet that is easy to place accurately according to claim 1, characterized in that: The lower surface of the upper clamping plate and the upper surface of the lower clamping plate are both provided with sawtooth structures.

5. The spinal cord electrical stimulation electrode sheet that is easy to place accurately according to claim 1, characterized in that: The adjusting rod is an L-shaped structure, and one end of the adjusting rod slides into the tubular channels on both sides of the electrode sheet.

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