CN213430444U - Nerve root puncture positioning device - Google Patents

Abstract

The utility model discloses a nerve root puncture positioner, it includes first locating plate, the second locating plate, puncture subassembly and position control subassembly, the second locating plate is located the below of first locating plate, first locating plate can be dismantled with the second locating plate and be connected, position control subassembly locates the position of second locating plate in order to adjust the relative second locating plate of first locating plate, first locating plate all is equipped with the wire that is used for showing the position with the inside of second locating plate, puncture subassembly can be dismantled with the second locating plate and be connected, borrow by the relative position between position control puncture subassembly that first locating plate shows and the second locating plate in order to puncture. The utility model discloses a nerve root puncture positioner has the security height, fixes a position the accurate and convenient advantage of operation.

Description

Nerve root puncture positioning device

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a nerve root puncture positioner.

Background

Currently, in clinical anesthesia and analgesia, a puncture needle is generally used for injecting drugs into subarachnoid space through lumbar intervertebral space, and the conduction function of partial spinal nerves is blocked by anesthesia nerve roots to cause anesthesia or analgesia in corresponding innervated areas. The anesthesiologist usually searches for the abnormal sensation by probing the needle, and if the abnormal sensation appears, the needle is close to the target nerve, and then the drug can be injected. The nerve root positioning device positions the nerve root by means of a C-arm machine or CT before the puncture of an anesthesiologist, determines the puncture position and depth and avoids damaging the nerve root when the anesthesiologist punctures.

At present, the lumbar vertebra gap is opened mainly by the lateral crouching of a patient, and the puncture is carried out by the hand feeling of an anesthesiologist; if the experience of the anesthesiologist is insufficient, the puncture position is inaccurate, nerve roots are likely to be damaged, and the patient suffers from complications such as sensory disturbance, pain and the like. Secondly, for the elderly patients, the patients are difficult to lie on the side, hold knees and curl into a shrimp-shaped posture; for children, the anesthesia position is not standard due to tension and fear as well as the fact that parents are not beside the body; therefore, the lumbar vertebra gap is not favorably opened, the position is not favorably determined by an anesthesiologist in the puncture process, repeated puncture can be caused, the pain and tension of a patient are increased, the patient can move due to the unconscious body caused by pain, and the possibility of damaging nerve roots is increased. Finally, the existing positioning device mainly depends on ultrasonic guidance to perform positioning puncture, two doctors are often required to be matched with each other, the process is complicated, the required time is long, and aseptic operation is not facilitated. As needed.

In order to solve the above problems, it is necessary to provide a nerve root puncture positioning device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nerve root puncture positioner that the security is high, the location is accurate and the operation is convenient.

In order to realize the above-mentioned purpose, the utility model provides a nerve root puncture positioner includes first locating plate, second locating plate, puncture subassembly and position control subassembly, the second locating plate is located the below of first locating plate, first locating plate with the connection can be dismantled to the second locating plate, position control subassembly is located the second locating plate is in order to adjust first locating plate is relative the position of second locating plate, first locating plate with the inside of second locating plate all is equipped with the wire that is used for showing the position, puncture subassembly with the connection can be dismantled to the second locating plate, borrow by the position control that first locating plate shows puncture subassembly with relative position between the second locating plate is with the puncture.

Preferably, the position adjusting assembly includes an angle adjusting mechanism for adjusting an angle and a height adjusting mechanism for adjusting a height, and the angle adjusting mechanism and the height adjusting mechanism are disposed on the second positioning plate.

Specifically, the second positioning plate comprises a movable plate and a fixed column, the angle adjusting mechanism comprises a universal ball column arranged at the bottom of the movable plate, a ball body structure of the universal ball column is rotatably arranged on the fixed column, and the angle of the first positioning plate relative to the second positioning plate is adjusted by means of rotation of the universal ball column relative to the fixed column.

Specifically, the height adjustment comprises an inner tube, an outer tube and a locking structure, the inner tube and the outer tube are arranged on the second positioning plate, the inner tube and the outer tube are mutually sleeved, and the locking structure is used for locking the relative position between the inner tube and the outer tube so as to adjust the height of the first positioning plate relative to the second positioning plate.

Preferably, the puncture subassembly includes latch, activity body and retaining member, the latch with remove behind the first locating plate the connection can be dismantled to the second locating plate, the activity body run through in the latch can be relative the latch removes, the retaining member locks the activity body with relative movement between the latch, one side of the activity body is equipped with the locating hole that is used for the puncture, be equipped with on the activity body and follow the scale that the length direction of the activity body arranged.

Preferably, the first positioning plate is provided with a hollow clamping groove, the second positioning plate is provided with a clamping block corresponding to the hollow clamping groove, and the hollow clamping groove is clamped with the clamping block.

Preferably, the nerve root puncture positioning device further comprises a first graduated scale, and the first graduated scale is arranged along the front-back direction of the first positioning plate.

Preferably, the nerve root puncture positioning device further comprises a second graduated scale, and the second graduated scale is arranged along the height direction of the second positioning plate.

Preferably, the nerve root puncture positioning device further comprises a fixing mechanism arranged on the second positioning plate, the fixing mechanism comprises a fixing piece, a sliding rail, a sliding block and a locking piece, the sliding rail is fixed on the second positioning plate, the fixing piece is fixed on the sliding rail, the sliding block is slidably arranged on the sliding rail, the fixing piece is arranged opposite to the sliding block, and the locking piece locks the relative distance between the fixing piece and the sliding block.

Preferably, the nerve root puncture positioning device further comprises a level gauge, and the level gauge is arranged on the first positioning plate.

Compared with the prior art, the utility model discloses a nerve root puncture positioner is with first locating plate, the second locating plate, puncture subassembly and position control subassembly etc. combine together, the second locating plate is located the below of first locating plate, first locating plate can be dismantled with the second locating plate and be connected, position control subassembly locates the second locating plate in order to adjust the position of first locating plate relative second locating plate, the user can adjust the position between first locating plate and the second locating plate as required, thereby be convenient for adjust according to the patient with the accurate of heightening the shot, the inside of first locating plate and second locating plate all is equipped with the wire that is used for showing the position, through set up the wire in first locating plate and second locating plate, take in with human tissue together when the patient uses C arm machine or CT to take a photograph, the wire can demonstrate the net on the piece; through the position relation of net and nerve root on the piece, first locating plate is favorable to confirming the plane position of puncture point, the second locating plate is favorable to confirming the degree of depth of puncture point, thereby damage nerve root when avoiding the puncture, the success rate of single puncture has been improved, puncture assembly and second locating plate can be dismantled and be connected, borrow the relative position between position control puncture assembly that first locating plate shows and the second locating plate with the puncture, the anesthesiologist need not to puncture repeatedly and seeks the suitable position of injection medicine, the time of anesthesia has been practiced thrift, alleviate patient's misery and tension, damage nerve root when also avoiding the puncture simultaneously leads to the production of anesthesia complication. Meanwhile, the nerve root puncture positioning device enables the patient to be anesthetized in a prone posture, and the success rate of anesthesia is guaranteed while the patient is prone. Especially for old age and children patients, compared with the side lying and curling body position, the comfortable sensation is increased, repeated puncture of an anaesthetist caused by the nonstandard anaesthesia body position is avoided, the pain and tension of the patients are avoided being increased, the possibility that the patients move because of the pain and unconscious bodies is also avoided, and the possibility of damaging nerve roots is reduced. The utility model discloses a nerve root puncture positioner has the security height, fixes a position the accurate and convenient advantage of operation.

Drawings

Fig. 1 is a schematic structural view of the nerve root puncture positioning device of the present invention when the first positioning plate and the second positioning plate are installed.

Fig. 2 is a schematic structural view of the nerve root puncture positioning device of the present invention when the second positioning plate is mounted on the puncture assembly.

Fig. 3 is a schematic view of the local structure of the nerve root puncture positioning device of the present invention when the first positioning plate and the second positioning plate are installed.

Fig. 4 is a schematic structural view of the first positioning plate in the nerve root puncture positioning device of the present invention in the top view direction.

Fig. 5 is a schematic structural view of the second positioning plate in the nerve root puncture positioning device of the present invention in the side view direction.

Fig. 6 is a schematic structural view of the fixing column in the nerve root puncture positioning device of the present invention in the side view direction.

Fig. 7 is a schematic structural view of the movable body in the nerve root puncture positioning device according to the present invention in the top view direction.

Fig. 8 is a schematic structural view of the fixture block of the nerve root puncture positioning device according to the present invention in the overlooking direction.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Referring to fig. 1 to 5, showing the specific structure of the nerve root puncture positioning device 100 of the present invention, the nerve root puncture positioning device 100 comprises a first positioning plate 1, a second positioning plate 2, a puncture assembly 3 and a position adjusting assembly 4, wherein the second positioning plate 2 is located below the first positioning plate 1, the first positioning plate 1 is horizontally arranged, the second positioning plate 2 is vertically arranged, the first positioning plate 1 is detachably connected with the second positioning plate 2, the position adjusting assembly 4 is arranged on the second positioning plate 2 to adjust the position of the first positioning plate 1 relative to the second positioning plate 2, a user can adjust the relative position between the first positioning plate 1 and the second positioning plate 2 as required, so as to adjust according to the patient to increase the accuracy of the radiograph, metal wires 8 for displaying the position are arranged inside the first positioning plate 1 and the second positioning plate 2, the metal wires 8 on the first positioning plate 1 are transversely and longitudinally arranged, that is, the metal wires 8 on the first positioning plate 1 are arranged along the front-back direction and the left-right direction of the first positioning plate 1, and the intervals between two adjacent metal wires 8 are equal, so as to form a metal wire 8 grid (see fig. 4 specifically), the metal wires 8 on the second positioning plate 2 are only horizontal, and are displayed on the sheet after the sheet is taken, so as to facilitate the determination of the puncture depth (see fig. 5 specifically), in other words, the metal wires 8 are arranged in the first positioning plate 1 and the second positioning plate 2, so as to be taken together with the human tissue when the patient uses the C-arm machine or the CT sheet, and the metal wires 8 display the grid on the sheet, so as to obtain the value of the puncture in the three-axis direction; through the position relationship between the grids on the sheet and the nerve roots, the first positioning plate 1 is beneficial to determining the plane position of the puncture point, the second positioning plate 2 is beneficial to determining the depth of the puncture point, thereby avoiding damaging nerve roots during puncture, improving the success rate of single puncture, after the shooting is finished by the first positioning plate 1 and the second positioning plate 2, namely, after the position is determined by the sheet, the first positioning plate 1 is removed from the second positioning plate 2, the puncture assembly 3 is detachably connected with the second positioning plate 2, thereby the puncture component 3 is arranged on the second positioning plate 2, the relative position between the puncture component 3 and the second positioning plate 2 is adjusted by the position displayed by the first positioning plate 1, and then accomplish the puncture, the anaesthetist need not to puncture repeatedly and seeks the suitable position of injecting the medicine, has practiced thrift the time of anaesthetizing, alleviates patient's misery and tension, also can avoid damaging the nerve root when the puncture and lead to the production of anesthesia complication simultaneously. Meanwhile, the nerve root puncture positioning device 100 enables the patient to be anesthetized in a prone posture, and the success rate of anesthesia is guaranteed while the patient is prone. Especially for old age and children patients, compared with the side lying and curling body position, the comfortable sensation is increased, repeated puncture of an anaesthetist caused by the nonstandard anaesthesia body position is avoided, the pain and tension of the patients are avoided being increased, the possibility that the patients move because of the pain and unconscious bodies is also avoided, and the possibility of damaging nerve roots is reduced. More specifically, the following:

referring to fig. 1 to 2 and fig. 6, the position adjustment assembly 4 includes an angle adjustment mechanism 41 for adjusting an angle and a height adjustment mechanism 42 for adjusting a height, and the angle adjustment mechanism 41 and the height adjustment mechanism 42 are disposed on the second positioning plate 2. The angle adjusting mechanism 41 and the height adjusting mechanism 42 can adjust the position of the second positioning plate 2 relative to the first positioning plate 1, so that the first positioning plate 1 is horizontally arranged, the second positioning plate 2 is vertically arranged, the first positioning plate 1 and the second positioning plate 2 are vertical to each other, because the puncture angle of medical staff enters vertically, the first positioning plate 1 is parallel to a patient, the second positioning plate 2 can be vertical to the patient, and the plane position of the puncture part is determined to be most accurate,

referring to fig. 1 to 2, the second positioning board 2 includes a movable board 21 and a fixed post 22, the angle adjusting mechanism 41 includes a universal ball column 411 disposed at the bottom of the movable board 21, a ball structure of the universal ball column 411 is rotatably disposed on the fixed post 22, the fixed post 22 is provided with a rotating slot 221 corresponding to the ball structure of the universal ball column 411, the ball structure of the universal ball column 411 is rotatably disposed in the rotating slot 221, and the rotation angle of the first positioning board 1 relative to the second positioning board 2 is adjusted by the rotation of the universal ball column 411 relative to the fixed post 22.

Referring to fig. 1 to 2, the height adjustment device includes an inner tube 421, an outer tube 422 and a locking structure 423, the inner tube 421 and the outer tube 422 are disposed on the second positioning plate 2, one of the inner tube 421 and the outer tube 422 is connected to an upper portion of the fixing post 22, the other of the inner tube 421 and the outer tube 422 is connected to a lower portion of the fixing post 22, the inner tube 421 and the outer tube 422 are sleeved to each other, so that the fixing post 22 is integrally formed in a telescopic structure, and the locking structure 423 locks or unlocks a relative position between the inner tube 421 and the outer tube 422 to extend or shorten the fixing post 22, thereby adjusting a height of the first positioning plate 1 relative to the second positioning plate 2.

Referring to fig. 2 and 7, the puncturing assembly 3 includes a latch 31, a movable body 32 and a locking member 33, the latch 31 is detachably connected to the second positioning plate 2 after the first positioning plate 1 is removed, a latch knob 24 is disposed on the second positioning plate 2, the latch knob 24 is rotated to lock a relative position between the latch 31 and the second positioning plate 2, the movable body 32 penetrates through the latch 31 and is capable of moving in a left-right direction of the first positioning plate 1 relative to the latch 31, the locking member 33 locks a relative movement between the movable body 32 and the latch 31, a scale disposed in a length direction of the movable body 32 is disposed on the movable body 32 to adjust a distance between the positioning hole 321 and the latch 31, a positioning hole 321 for puncturing is disposed on one side of the movable body 32, that is, the positioning hole 321 is determined in the left-right direction according to the shooting data and by using the scale on the movable body 32, when the movable body 32 moves to a target position, the positioning hole 321 is aligned with the puncture position of the body, and the operator punctures the patient through the positioning hole 321. Preferably, the latch 31 is a T-shaped ruler latch 31, the movable body 32 is a T-shaped ruler movable body 32, the first positioning plate 1 is removed according to the grid on the sheet, the T-shaped ruler latch 31 is installed, and then the distance between the positioning hole 321 and the T-shaped ruler latch 31 is determined by comparing the grid on the first positioning plate 1 and the grid on the sheet, that is, the plane position of the puncture part is determined, and the positioning hole 321 is beneficial to puncture at the accurate position after positioning by medical staff. Preferably, a slide rail is arranged inside the latch 31, and the movable body 32 is slidably connected with the slide rail.

Referring to fig. 3, the first positioning plate 1 is provided with a hollow slot 11, the second positioning plate 2 is provided with a clamping block 23 corresponding to the hollow slot 11, and the hollow slot 11 is clamped with the clamping block 23, so that the first positioning plate 1 and the second positioning plate 2 can be detachably connected, and the convenience of disassembly and assembly is improved.

Please refer to fig. 1 to 8, the utility model discloses a nerve root puncture positioner 100 still includes first scale 5, second scale 6 and spirit level 9, first scale 5 arranges along the fore-and-aft direction of first locating plate 1, second scale 6 arranges along the direction of height of second locating plate 2, confirm locating hole 321 position on upper and lower and fore-and-aft direction according to the shot data and the scale that utilizes first scale 5 and second scale 6 promptly, in addition above-mentioned movable body 32 can confirm locating hole 321 position on the left and right sides direction, thereby confirmed the position of locating hole 321 on triaxial, spirit level 9 is located on first locating plate 1. The level gauge 9 is used to determine whether the second positioning plate 2 is parallel to the patient. On fixture block 23 was located to first scale 5, can confirm corresponding position according to the net on the piece more accurately, first locating plate 1 and second locating plate 2 are transparent plate, so visual. A second graduated scale 6 is arranged in front of the second positioning plate 2, so that the puncture depth can be determined more accurately; first scale 5 and second scale 6 and 8 horizontal parts of metal rule between the one-to-one, no matter how much the proportion of the piece of shooting and human tissue is applicable like this, only need can confirm the position according to the first scale 5 that the net corresponds for the location of latch 31 is more swift accurate. The wires 8 are arranged equidistantly and the wires 8 are used for accurate positioning of the puncture site. The distance between the metal wires 8 can be cm, or any other equal distance, but the effect of arranging the wires at equal intervals in cm is optimal, and the accuracy of the puncture position determined by the method is high. First locating plate 1 and second locating plate 2 are the transparent plate, and the medical personnel of being convenient for pass through the net on the piece, confirm the position of puncture position on first scale 5, also do benefit to medical personnel visual angle when the puncture clear.

Please refer to fig. 1 to 2, the utility model discloses a nerve root puncture positioner 100 is still including the fixed establishment 7 who locates second locating plate 2, fixed establishment 7 includes mounting 71, slide rail 72, slider 73 and locking piece 74, slide rail 72 is fixed in second locating plate 2, mounting 71 is fixed in slide rail 72, slide rail 72 is located in the slider 73 cunning, mounting 71 and slider 73 set up relatively, locking piece 74 locks the relative distance between mounting 71 and the slider 73, thereby utilize slider 73 and mounting 71 to press from both sides tightly jointly or loosen outside operation table, thereby realize the installation and the dismantlement of second locating plate 2, and then with device monolithic stationary.

In summary, referring to fig. 1 to 8, a detailed description will be made of the using process of the nerve root puncture positioning device 100 of the present invention:

when in use, the fixing mechanism 7 is used for fixing the whole device on the operation bed edge or the CT moving bed edge. Utilize height adjustment mechanism 42 to adjust the height of first locating plate 1 relative second locating plate 2 to adaptation and patient's position, thereby improve the accuracy of location, with the hollow draw-in groove 11 block of first locating plate 1 below to the fixture block 23 of second locating plate 2 top, notice during the block with the coincidence of horizontal metal wire 8 on the first locating plate 1 and the first scale 5 of fixture block 23 top, first locating plate 1 is perpendicular with second locating plate 2 after the block. Subsequently, the angle adjusting mechanism 41 is adjusted, and the first positioning plate 1 is adjusted to be parallel to the patient according to the level 9. At the moment, a film shooting mode is selected according to different conditions of the patient, and the puncture positions of the puncture points on the three axes are obtained by utilizing the contrast of the grid and the affected part of the patient. After shooting, the metal wire 8 appears on the film; according to the development of the latticed metal wire 8, comparing the position of the puncture point on the first graduated scale 5, installing the T-shaped scale latch 31 to the position, determining the distance between the positioning hole 321 and the T-shaped scale latch 31 by comparing the grid on the first positioning plate 1 and the grid on the sheet, and moving the movable body 32 to the target position by using the scale on the movable body 32, namely determining the plane position of the puncture point; the depth of the puncture point is directly obtained from the second scale 6 according to the development of the metal wire 8, so that the positioning hole 321 is moved to the target height, and the positioning on three axes of the puncture point is completed. After sterilization, the needle is inserted through the positioning hole 321.

The first positioning plate 1, the second positioning plate 2, the puncture assembly 3, the position adjusting assembly 4 and the like are combined together, the second positioning plate 2 is positioned below the first positioning plate 1, the first positioning plate 1 is detachably connected with the second positioning plate 2, the position adjusting assembly 4 is arranged on the second positioning plate 2 to adjust the position of the first positioning plate 1 relative to the second positioning plate 2, a user can adjust the position between the first positioning plate 1 and the second positioning plate 2 as required, so that the accurate positioning of a shot can be conveniently adjusted according to a patient, metal wires 8 for displaying the position are arranged inside the first positioning plate 1 and the second positioning plate 2, the metal wires 8 are arranged in the first positioning plate 1 and the second positioning plate 2, and are taken together with human tissues when the patient uses a C-arm machine or a CT, and the metal wires 8 can display grids on the slice; through the position relation of net and nerve root on the piece, first locating plate 1 is favorable to confirming the plane position of puncture point, second locating plate 2 is favorable to confirming the degree of depth of puncture point, thereby damage nerve root when avoiding the puncture, the success rate of single puncture has been improved, puncture assembly 3 can be dismantled with second locating plate 2 and be connected, borrow the relative position between position control puncture assembly 3 that first locating plate 1 shows and second locating plate 2 with the puncture, the anesthesiologist need not to puncture repeatedly and seeks the suitable position of injection medicine, the time of anesthesia has been practiced thrift, alleviate patient's misery and tension, damage nerve root when also can avoiding the puncture simultaneously leads to the production of anesthesia complication. Meanwhile, the nerve root puncture positioning device 100 enables the patient to be anesthetized in a prone posture, and the success rate of anesthesia is guaranteed while the patient is prone. Especially for old age and children patients, compared with the side lying and curling body position, the comfortable sensation is increased, repeated puncture of an anaesthetist caused by the nonstandard anaesthesia body position is avoided, the pain and tension of the patients are avoided being increased, the possibility that the patients move because of the pain and unconscious bodies is also avoided, and the possibility of damaging nerve roots is reduced. The utility model discloses a nerve root puncture positioner 100 has the security height, fixes a position the accurate and convenient advantage of operation.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims (10)

1. The utility model provides a nerve root puncture positioner, its characterized in that includes first locating plate, second locating plate, puncture subassembly and position control subassembly, the second locating plate is located the below of first locating plate, first locating plate with the connection can be dismantled to the second locating plate, position control subassembly is located the second locating plate is in order to adjust first locating plate is relative the position of second locating plate, first locating plate with the inside of second locating plate all is equipped with the wire that is used for showing the position, puncture subassembly with the connection can be dismantled to the second locating plate, borrow by the position control that first locating plate shows puncture subassembly with relative position between the second locating plate is in order to puncture.

2. The nerve root puncture positioning device of claim 1, wherein the position adjustment assembly comprises an angle adjustment mechanism for adjusting an angle and a height adjustment mechanism for adjusting a height, the angle adjustment mechanism and the height adjustment mechanism being disposed on the second positioning plate.

3. The nerve root puncture positioning device according to claim 2, wherein the second positioning plate comprises a movable plate and a fixed post, the angle adjusting mechanism comprises a universal ball post disposed at a bottom of the movable plate, a spherical structure of the universal ball post is rotatably disposed on the fixed post, and an angle of the first positioning plate relative to the second positioning plate is adjusted by rotation of the universal ball post relative to the fixed post.

4. The nerve root puncture positioning device according to claim 2, wherein the height adjustment comprises an inner tube, an outer tube and a locking structure, the inner tube and the outer tube are disposed on the second positioning plate, the inner tube and the outer tube are sleeved with each other, and the locking structure is used to lock the relative position between the inner tube and the outer tube to adjust the height of the first positioning plate relative to the second positioning plate.

5. The device for positioning nerve root puncture according to claim 1, wherein the puncture assembly comprises a latch detachably connected to the second positioning plate after the first positioning plate is removed, a movable body penetrating the latch and movable relative to the latch, and a locking member locking the movable body and the latch against relative movement, wherein one side of the movable body is provided with a positioning hole for puncture, and the movable body is provided with a scale arranged along a length direction of the movable body.

6. The nerve root puncture positioning device according to claim 1, wherein the first positioning plate is provided with a hollow slot, the second positioning plate is provided with a block corresponding to the hollow slot, and the hollow slot is engaged with the block.

7. The nerve root puncture positioning device of claim 1, further comprising a first scale, the first scale being arranged along an anterior-posterior direction of the first positioning plate.

8. The nerve root puncture positioning device according to claim 1, further comprising a second scale, the second scale being arranged in a height direction of the second positioning plate.

9. The nerve root puncture positioning device according to claim 1, further comprising a fixing mechanism disposed on the second positioning plate, wherein the fixing mechanism includes a fixing member, a slide rail, a slider, and a locking member, the slide rail is fixed on the second positioning plate, the fixing member is fixed on the slide rail, the slider is slidably disposed on the slide rail, the fixing member is disposed opposite to the slider, and the locking member locks a relative distance between the fixing member and the slider.

10. The nerve root puncture positioning device of claim 1, further comprising a level, wherein the level is disposed on the first positioning plate.

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