Fixing device for nerve electrophysiological examination

Abstract

The utility model discloses a fixing device for neuroelectrophysiological examination, and particularly relates to the field of neurology, the top of two sliding blocks is fixedly connected with a moving block, the left side of the moving block is fixedly connected with a moving column, the left side of the moving column is provided with a moving groove, one side of a boundary block on the left side is provided with a threaded hole, and the boundary block on the right side is provided with a threaded hole. A threaded column is in threaded connection with the interior of the threaded hole, and one side of the threaded column is rotationally connected with the moving groove. The arm of a patient is placed on two fixing devices, one side of the arm is attached to two attaching layers, a rotating handle is rotated, a threaded column is driven to rotate and move rightwards, and a moving column and a moving block are driven to move rightwards till the attaching block extrudes the other side of the arm of the user, so that the arm of the user is clamped between the attaching block and the attaching layers, and the arm of the patient is fixed to the fixing devices. The effect of fixing the arm of the user is achieved. And the clamping and fixing effects can be achieved according to different widths of arms of different users in a refined manner.

Description

Technical Field

[0001] The utility model relates to the technical field of neurology, in particular to a fixing device for neuroelectrophysiological examination. Background Art

[0002] Neuroelectrophysiology is a method of recording or measuring changes in membrane potential, conduction velocity, and ion channel activity of whole animals or isolated organ tissues, nerves, and cell ion channels using electrophysiological instruments, microelectrodes, voltage clamps, and patch clamp techniques. Neuroelectrophysiological examination is what we often call electromyography. It is an accurate quantitative examination method and is often used in the diagnosis of carpal tunnel syndrome. The electrophysiological examination of the median nerve in carpal tunnel syndrome mainly examines the terminal motor latency, motor conduction velocity, sensory conduction velocity, and terminal sensory latency. If the latency is prolonged and the conduction velocity is slowed, it is considered that the median nerve is damaged. During the neuroelectrophysiological examination, the patient's wrist needs to be fixed.

[0003] A Chinese patent discloses a fixation device for neuroelectrophysiological examination with publication number CN214804763U, and the application date is 2021.01.05. The patented technology can facilitate the device to fix the arms of different patients and improve the adaptability of the device by setting the adjustment block and the movable arc block, and the positioning hole and the positioning pin are set. However, the above patent uses the coordination of the positioning hole and the pin to achieve the effect of changing the distance between the clamping heads, but the distance changed by the clamping head can only be a multiple of the spacing between adjacent positioning holes, which makes it difficult to refine the clamping of the fixing device. It is either too tight to clamp the user's arm, or too loose to achieve the fixing effect. Therefore, those skilled in the art provide a fixation device for neuroelectrophysiological examination to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a fixing device for neuroelectrophysiological examination, which can achieve refined clamping and fixing.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A fixing device for neuroelectrophysiological examination comprises a base plate, support blocks are fixedly connected to the front and rear sides of the bottom of the base plate, a pair of mirror-symmetrical fixing devices are installed on both sides of the top of the base plate, the fixing device comprises a fixing block, boundary blocks are fixedly connected to the two sides of the top of the fixing block, a pair of sliding grooves are opened on the top of the fixing block, sliding blocks are slidably connected inside the two sliding grooves, moving blocks are fixedly connected to the tops of the two sliding blocks, a moving column is fixedly connected to the left side of the moving block, a moving groove is opened on the left side of the moving column, a threaded hole is opened on one side of the boundary block on the left side, a threaded column is threadedly connected inside the threaded hole, and one side of the threaded column is rotatably connected to the moving groove.

[0007] As a further solution of the utility model: limiting grooves are provided on both sides of the sliding groove, limiting blocks are fixedly connected to both sides of the sliding block, and the two limiting blocks are slidably connected to the corresponding limiting grooves respectively.

[0008] As a further solution of the utility model: a bonding layer is fixedly connected to the left side of the boundary block on the right side, and a bonding block is fixedly connected to the right side of the moving block.

[0009] As a further solution of the utility model: a group of bonding devices are installed on the top of the base plate, and the bonding device includes a connecting belt, a connecting layer is fixedly connected to the top middle position of the connecting belt, an electrode needle is fixedly connected to the top of the connecting layer, and the bottom of the electrode needle is electrically connected to the baseline.

[0010] As a further solution of the utility model: the left and right sides of the top of the connecting belt are fixedly connected to the mirror-symmetrical auxiliary strips, and the auxiliary strips include rubber strips on the front and back sides and an inner cotton layer.

[0011] As a further solution of the utility model: a ring buckle is fixedly connected to the right side of the connecting belt, a Velcro sub-tape is fixedly connected to the leftmost bottom of the connecting belt, and a Velcro main tape is fixedly connected to the left side of the bottom of the connecting belt.

[0012] As a further solution of the utility model: a turning handle is fixedly connected to one side of the threaded column.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The fixation device for neuroelectrophysiological examination places the patient's arm on two fixation devices, with one side of the arm being attached to two bonding layers, and the turning handle is turned to drive the threaded column to rotate and move to the right, driving the moving column and the moving block to move to the right, until the bonding block squeezes the other side of the user's arm, so that the user's arm is clamped between the bonding block and the bonding layer, thereby achieving the effect of fixing the user's arm. Moreover, the clamping and fixing effect can be achieved according to the different widths of different users' arms.

[0015] In addition, the fixing device for neuroelectrophysiological examination connects the electrode needle to the user's skin, the connecting layer fits the surface of the user's skin, and the material of the medical cotton can prevent the user from infection while absorbing sweat on the patient's skin surface. The top surface of the connecting belt is wrapped around the user's skin surface, and the auxiliary strip part is directly fitted with the user's skin. The rubber belt can be non-slip when connected to the skin and is used for positioning the fitting device. Then the Velcro tape end is passed through the inside of the ring buckle, and then flipped so that the Velcro tape end is at the bottom and pulled to the left until the surface of the connecting belt completely fits the user's arm, and then bonded with the Velcro mother tape to complete the fixation of the connecting belt on the user's arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a fixation device for neuroelectrophysiological examination;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of a fitting device in a fixing device for neuroelectrophysiological examination;

[0018] Figure 3 It is a schematic diagram of the left side cross-sectional structure of a fixing device in a fixing device for neuroelectrophysiological examination;

[0019] Figure 4 The present invention is a schematic diagram of the front cross-sectional structure of the connection between the threaded column and the moving block in a fixing device for neuroelectrophysiological examination.

[0020] Figure 5 This is a schematic diagram of the structure of point A in a fixation device for neuroelectrophysiological examination.

[0021] In the figure: 1, bottom plate; 20, support block; 30, fixing device; 31, fixing block; 32, boundary block; 33, sliding groove; 34, limiting groove; 35, bonding layer; 36, sliding block; 37, limiting block; 38, moving block; 39, bonding block; 40, moving column; 41, moving groove; 42, threaded hole; 43, threaded column; 44, turning handle; 50, bonding device; 51, connecting belt; 52, connecting layer; 53, electrode needle; 54, auxiliary strip; 55, baseline; 56, ring buckle; 57, Velcro sub-tape; 58, Velcro mother tape; 541, rubber belt; 542, cotton layer. DETAILED DESCRIPTION

[0022] like Figure 1 As shown, a fixing device for neuroelectrophysiological examination comprises a base plate 1, the front and rear sides of the bottom of the base plate 1 are fixedly connected with support blocks 20, and the middle positions of the front and rear sides of the top of the base plate 1 are fixedly connected with a pair of mirror-symmetrical fixing devices 30.

[0023] refer to Figure 1 , 34. The fixing device 30 includes a fixing block 31. The top and rear sides of the fixing block 31 are fixedly connected with a mirror-symmetrical boundary block 32. The left side of the right boundary block 32 is fixedly connected with a fitting layer 35. The fitting layer 35 is ergonomically designed and made of memory foam. It fits the side of the user's arm and will not cause damage to the user's arm at the boundary. The top and rear sides of the fixing block 31 are provided with sliding grooves 33. The front and rear sides of the sliding groove 33 are provided with limiting grooves 34. The two sliding grooves 33 are slidably connected with sliding blocks 36. The front and rear sides of the two sliding blocks 36 are fixedly connected with limiting blocks 37. The two limiting blocks 37 are slidably connected with the corresponding limiting grooves 34, so that the sliding blocks 36 can move parallel to the left and right in the sliding groove 33. The tops of the two sliding blocks 36 are fixedly connected with a moving block 38. The right side of the moving block 38 is fixedly connected with a fitting block 39. The fitting block 39 is ergonomically designed in an arc shape and made of memory foam.

[0024] refer to Figure 1 , 3 4. A moving column 40 is fixedly connected to the middle position on the left side of the moving block 38. A moving groove 41 is provided on the left side of the moving column 40. A threaded hole 42 is provided in the middle position of the boundary block 32 on the left side. A threaded column 43 is threadedly connected inside the threaded hole 42. The right side of the threaded column 43 is rotatably connected to the moving groove 41. A turning handle 44 is fixedly connected to the right side of the threaded column 43. When in use, the patient's arm is placed on the fixing device 30, and one side of the arm is in contact with the two bonding layers 35. The turning handle 44 is turned to drive the threaded column 43 to rotate and move to the right, and drive the moving column 40 and the moving block 38 to move to the right, until the bonding block 39 squeezes the other side of the user's arm, so that the user's arm is clamped between the bonding block 39 and the bonding layer 35, thereby achieving the effect of fixing the user's arm.

[0025] refer to Figure 1 , 25. A group of fitting devices 50 are installed on the top of the bottom plate 1. The fitting devices 50 are located on the opposite sides of the two fixing devices 30. The fitting devices 50 include a connecting belt 51 placed on the bottom plate 1. A connecting layer 52 is fixedly connected to the middle position of the top of the connecting belt 51. The connecting layer 52 is made of medical cotton and an electrode needle 53 is fixedly connected to the top of the connecting layer 52. When in use, the electrode needle 53 is connected to the user's skin, and the connecting layer 52 fits the surface of the user's skin. The material of the medical cotton can prevent the user from being infected while absorbing the patient's skin. The connecting belt 51 is fixedly connected to the mirror-symmetrical auxiliary strips 54 on the left and right sides of the top, and the auxiliary strips 54 include rubber strips 521 on the front and back sides and a cotton layer 542 inside. When in use, the top surface of the connecting belt 51 is wrapped around the user's skin surface, and the auxiliary strip 54 part is directly in contact with the user's skin. The rubber strip 521 can be anti-slip when connected to the skin and can be used for positioning the fitting device 50. When the cotton layer 542 is connected to the skin and fits, it can absorb sweat on the user's skin surface and the material is skin-friendly and will not cause adverse effects on the user's skin.

[0026] refer to Figure 2 , 5 The bottom of the electrode needle 53 is electrically connected to a baseline 55, and the other end of the baseline 55 is connected to the input end of the electromyography device. The right side of the connecting belt 51 is fixedly connected to a ring buckle 56, the leftmost bottom of the connecting belt 51 is fixedly connected to a Velcro tape 57, and the left bottom of the connecting belt 51 is fixedly connected to a Velcro tape 58. After the electrode needle 53 is connected to the user's skin, the two ends of the connecting belt 51 are wrapped around the patient's arm, and then the Velcro tape 57 is passed through the inside of the ring buckle 56, and then turned over so that the Velcro tape end 57 is located at the bottom and pulled to the left, until the surface of the connecting belt 51 completely fits the user's arm, and then adhered to the Velcro tape 58 to complete the fixing of the connecting belt 51 on the user's arm.

[0027] The working principle of the utility model is as follows: when in use, the patient's arm is placed on the two fixing devices 30, and one side of the arm is in contact with the two fitting layers 35, and the turning handle 44 is turned to drive the threaded column 43 to rotate and move to the right, driving the moving column 40 and the moving block 38 to move to the right, until the fitting block 39 squeezes the other side of the user's arm, so that the user's arm is clamped between the fitting block 39 and the fitting layer 35, thereby achieving the effect of fixing the user's arm.

[0028] Then connect the corresponding fitting device 50 to the arm skin, connect the electrode needle 53 to the user's skin, fit the connecting layer 52 to the user's skin surface, and the material of the medical cotton can prevent the user from being infected while absorbing the sweat on the patient's skin surface. Wrap the top surface of the connecting belt 51 around the user's skin surface, and the auxiliary strip 54 part directly fits the user's skin. The rubber belt 521 can be anti-slip when connected to the skin and is used to position the fitting device 50. Then pass the end of the Velcro tape 57 through the inside of the ring buckle 56, and then flip it so that the Velcro tape end 57 is at the bottom and pull it to the left until the surface of the connecting belt 51 completely fits the user's arm, and then bond it with the Velcro mother tape 58 to complete the fixation of the connecting belt 51 on the user's arm.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A fixing device for neuroelectrophysiological examination, comprising a bottom plate (1), wherein the bottom of the bottom plate (1) is fixedly connected with support blocks (20) at both the front and rear sides thereof, and characterized in that: A pair of mirror-symmetrical fixing devices (30) are installed on both sides of the top of the bottom plate (1), and the fixing device (30) comprises a fixing block (31), and boundary blocks (32) are fixedly connected to both sides of the top of the fixing block (31), and a pair of sliding grooves (33) are provided on the top of the fixing block (31), and sliding blocks (36) are slidably connected inside the two sliding grooves (33), and moving blocks (38) are fixedly connected on the top of the two sliding blocks (36), and a moving column (40) is fixedly connected on the left side of the moving block (38), and a moving groove (41) is provided on the left side of the moving column (40), and a threaded hole (42) is provided on one side of the boundary block (32) on the left side, and a threaded column (43) is threadedly connected inside the threaded hole (42), and one side of the threaded column (43) is rotatably connected to the moving groove (41).

2. A fixation device for neuroelectrophysiological examination according to claim 1, characterized in that: The sliding groove (33) has limiting grooves (34) on both sides thereof, and limiting blocks (37) are fixedly connected to both sides of the sliding block (36), and the two limiting blocks (37) are respectively slidably connected to the corresponding limiting grooves (34).

3. A fixation device for neuroelectrophysiological examination according to claim 1, characterized in that: The left side of the boundary block (32) on the right side is fixedly connected with a bonding layer (35), and the right side of the moving block (38) is fixedly connected with a bonding block (39).

4. A fixation device for neuroelectrophysiological examination according to claim 1, characterized in that: A group of laminating devices (50) is installed on the top of the base plate (1), and the laminating device (50) comprises a connecting belt (51), a connecting layer (52) is fixedly connected to the middle position of the top of the connecting belt (51), an electrode needle (53) is fixedly connected to the top of the connecting layer (52), and the bottom of the electrode needle (53) is electrically connected to a baseline (55).

5. A fixation device for neuroelectrophysiological examination according to claim 4, characterized in that: The left and right sides of the top of the connection belt (51) are fixedly connected to mirror-symmetrical auxiliary strips (54), and the auxiliary strip (54) includes rubber strips (521) at the front and rear sides and an inner cotton layer (522).

6. A fixation device for neuroelectrophysiological examination according to claim 4, characterized in that: The right side of the connecting belt (51) is fixedly connected with a ring buckle (56), the leftmost bottom portion of the connecting belt (51) is fixedly connected with a Velcro sub-belt (57), and the left bottom portion of the connecting belt (51) is fixedly connected with a Velcro main tape (58).

7. A fixation device for neuroelectrophysiological examination according to claim 1, characterized in that: One side of the threaded column (43) is fixedly connected to a turning handle (44).

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