CN211381656U

CN211381656U - Spinal puncture positioning device

Info

Publication number: CN211381656U
Application number: CN201922050488.XU
Authority: CN
Inventors: 陈通; 陈俊安; 刘友军; 陈焕诗
Original assignee: Liuzhou Municipal Liutie Central Hospital
Current assignee: Liuzhou Municipal Liutie Central Hospital
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-01
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a spinal puncture positioning device, including the horizontal pole, the bottom of horizontal pole is provided with the clamping part that is used for fixed operation bedside, the top of horizontal pole is provided with first scale, the interval is provided with two fixed blocks on the side of the centre gripping mouth place side that the horizontal pole deviates from the clamping part, rotate on two fixed blocks and wear to be equipped with the lead screw, be provided with the slider between two fixed blocks, the slider cover is established on the lead screw, and with lead screw threaded connection, the slider still with diaphragm sliding connection towards the one end of diaphragm, the top of slider is provided with first angle calibrated scale, its dish center rotates and is provided with the montant; the vertical rod body is provided with a second scale, the rod body of the vertical rod is provided with a first measuring transverse rod, a second measuring transverse rod and a third measuring transverse rod in a sliding mode from bottom to top in sequence, and the first measuring transverse rod, the second measuring transverse rod and the third measuring transverse rod are perpendicular to the vertical rod. The utility model discloses can carry out angle location to the puncture needle, improve pjncture needle inclination's accurate positioning, and the degree of depth that the pjncture needle marchd.

Description

Spinal puncture positioning device

Technical Field

The utility model relates to the technical field of medical equipment, specifically a spinal puncture positioner.

Background

At present, when medical staff carry out lumbar intervertebral disc puncture surgery, the surgery needs to be carried out under the guidance of CT, specifically, the intervertebral disc is seen by CT scanning, and a puncture route entering the intervertebral disc through skin is calibrated on a CT work control station, wherein the puncture route comprises a puncture point on the skin, a distance from the puncture point to the edge of the intervertebral disc and an angle formed by the puncture route and a spinal horizontal line. The laser positioning lamp of CT can be used for calibrating the puncture point on the skin, the puncture needle is provided with scales, and the only thing which is not easy to master is the angle formed by the puncture needle and the horizontal line of the vertebral column.

The doctor usually makes a rough manual comparison with the lumbar intervertebral inclination angle of the affected part displayed on the CT work control station, and performs puncture according to the comparison. The operation is not accurate due to the inclined angle between the lumbar vertebrae, and particularly, doctors with low experience need to repeatedly perform the operation for several times to successfully puncture the lumbar vertebrae, so that the pain of patients is increased, and even the treatment effect of the lumbar disc diseases is influenced.

The utility model aims to solve the technical problem that a simple positioner for lumbar intervertebral disc puncture is provided, can do accurate positioning to inclination between the lumbar vertebrae, help improving the success probability of lumbar intervertebral disc puncture.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spinal puncture positioner to carry out the location on the angle to the puncture needle, improve pjncture needle inclination's accurate positioning, and the degree of depth that the pjncture needle marchd.

In order to achieve the above object, the utility model provides a following technical scheme: a spinal puncture positioning device comprises a cross rod, wherein a clamping part used for fixing the edge of an operating bed is arranged at the bottom of the cross rod, first scales are arranged at the top of the cross rod along the length of the cross rod, two fixing blocks are arranged on the side, away from the clamping opening of the clamping part, of the cross rod at intervals, a lead screw is arranged on the two fixing blocks in a rotating and penetrating mode, one end of the lead screw is located on the outer sides of the two fixing blocks, a rotating handle is slidably sleeved outside the end of the lead screw and meshed with the lead screw through a first tooth-shaped structure, the outer portion of the rotating handle is meshed with a tooth-shaped cylinder on the fixing block through a second tooth-shaped structure, and the rotating handle is connected with the tooth; a sliding block is arranged between the two fixed blocks, the sliding block is sleeved on the screw rod and is in threaded connection with the screw rod, one end of the sliding block, facing the transverse plate, is also in sliding connection with the transverse plate, a first angle dial is arranged at the top of the sliding block, and a vertical rod is rotationally arranged at the center of the dial; the vertical rod is vertically placed, a second scale is arranged on a rod body of the vertical rod, a first measuring cross rod, a second measuring cross rod and a third measuring cross rod are sequentially arranged on the rod body of the vertical rod in a sliding mode from bottom to top, and the first measuring cross rod, the second measuring cross rod and the third measuring cross rod are all perpendicular to the vertical rod;

the first measuring cross rod comprises a first cross rod fixing section and a first cross rod telescopic section, one end of the first cross rod fixing section is sleeved on the vertical rod through a first sliding sleeve, the other end of the first cross rod fixing section is inserted with one end of the first cross rod telescopic section in a sliding mode, the first cross rod telescopic section is provided with third scales, and a first locking piece for preventing sliding is arranged at the overlapping position of the first cross rod fixing section and the first cross rod telescopic section; the second measuring cross rod comprises a second cross rod fixing section and a second cross rod telescopic section, one end of the second cross rod fixing section is sleeved on the vertical rod through a second sliding sleeve, the other end of the second cross rod fixing section is inserted with one end of the second cross rod telescopic section in a sliding mode, a second locking piece for preventing sliding is arranged at the overlapping position of the second cross rod telescopic section and the second cross rod fixing section, a measuring pointer is arranged on the side face of the end portion of the other end of the second cross rod telescopic section in a rotating mode, the rotating axis is horizontally arranged and perpendicular to the second cross rod, the measuring pointer is of a telescopic structure, and fourth scales are arranged in the length direction of the measuring pointer; the third measuring cross rod comprises a third cross rod fixing section and a third cross rod telescopic section, one end of the third cross rod fixing section is sleeved on the vertical rod through a third sliding sleeve, the other end of the third cross rod telescopic section is inserted with one end of the third cross rod telescopic section in a sliding mode, a third locking piece for preventing sliding is arranged at the overlapping position of the third cross rod telescopic section and the third cross rod fixing section, a needle tube for a puncture needle to penetrate through is arranged on the side face of the end portion of the other end of the third cross rod telescopic section in a rotating mode, the rotating axis is horizontally arranged and perpendicular to the third cross rod, a sliding rod is arranged at one end, away from the second measuring cross rod, of the needle tube in a sliding mode, the sliding direction is the length direction of the needle tube, a fifth scale is arranged on the rod body of the sliding rod, and;

the parts of the first sliding sleeve, the second sliding sleeve and the third sliding sleeve, which are right opposite to the first scales, are transparent.

Preferably, the clamping part includes L template and swing arm, the vertical bottom of fixing at the horizontal pole on one side of the L type of L template, the face on L type another side is just right the horizontal pole setting, the face on L type another side is worn to establish by the swing arm spiral, and its both ends are located respectively the relative both sides of the face on L template L type another side.

Preferably, the slide bar is provided with a fourth locking member for preventing the slide bar from sliding relative to the needle tube.

Preferably, the montant is provided with the pointer of instructing near the one end of slider, indicate the pointer and be located first angle calibrated scale directly over, and a little more than first angle calibrated scale.

Preferably, the montant passes through the set casing and rotates and install on the slider, first angle calibrated scale sets up the top at the set casing, the set casing is worn to establish by the one end of montant, and stretch into in the set casing, and with the set casing passes through the bearing and rotates the connection, and this one end is connected through the gear train meshing and is adjusted the one end that the pole is located the set casing inboard, adjust the pole and rotate through the bearing and connect the set casing, its other end wear to establish extremely the top of set casing.

Preferably, a first rotating disc is detachably arranged on the side face of the end part of the other end of the telescopic section of the second cross rod, a second angle dial is arranged on the disc face of the first rotating disc, and the rotating center of the measuring pointer is located at the disc center of the second angle dial; the tip side of the other end of the flexible section of third horizontal pole can be dismantled and set up the second carousel, the quotation of second carousel is provided with the third angle calibrated scale, the rotation center of needle tubing is located the dish center of third angle calibrated scale.

Preferably, the measuring pointer is detachably provided with a measuring rod, the measuring rod is arranged in parallel with the measuring pointer, one end of the measuring rod is connected with the side pointer, and the other end of the measuring rod extends to the position of the third measuring cross rod.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model simulates the vertical height of a lesion part from a sickbed through the vertical sliding of a first measuring cross rod, the horizontal distance of the lesion part from the cross rod is positioned through the telescopic simulation of the first measuring cross rod, the vertical height of a puncture point from the sickbed is simulated through the vertical sliding of a second measuring cross rod, the horizontal distance of the puncture point on the same plane with the lesion part is simulated through the telescopic simulation of the second measuring cross rod, at the moment, the connecting line between the end part of the second measuring cross rod far away from a second sliding sleeve and the end part of the first measuring cross rod far away from the first sliding sleeve is a puncture route, the distance of the connecting line is the puncture depth, the included angle between the connecting line and the vertical direction is the inclination angle when a puncture needle punctures, the distance and the angle of the connecting line are displayed through a measuring pointer, the inclination angle of a needle tube on a third measuring cross rod and, the puncture angle and the puncture depth of the puncture needle are obtained, the puncture needle is fixed by clamping of the clamping piece at the moment, the vertical height and the telescopic degree of the third measuring cross rod are adjusted, so that the needle head of the fixed puncture needle is in contact with the end part, far away from the second sliding sleeve, of the second measuring cross rod, then the third measuring cross rod is contracted, the vertical rod is rotated to the plane where the puncture point and the lesion part are located, the plane can record the rotation angle of the vertical rod on the first angle scale when the second measuring cross rod touches the puncture point, after the vertical rod rotates to the angle again, the third measuring telescopic rod is extended, the needle head of the puncture needle is positioned at the puncture point, the puncture needle can be punctured by pushing the clamping piece, when the needle tube of the clamping piece touches, the puncture needle has punctured to the lesion part, the puncture can be stopped at the moment, and the; to sum up, the utility model discloses can carry out more accurate puncture to the spinal puncture, avoid the pain of many times puncture to the patient brings, puncture efficiency is high, and the practicality is better.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a partial view of fig. 2.

In the figure: the device comprises a cross rod 1, a first scale 2, a fixed block 3, a screw rod 4, a rotating handle 5, a toothed cylinder 6, a sliding block 7, a fixed shell 8, a vertical rod 9, a gear disc 10, an adjusting rod 11, a second scale 12, a first sliding sleeve 13, a first locking piece 14, a first measuring cross rod 15, a first locking piece 16, a second sliding sleeve 17, a second locking piece 18, a second measuring cross rod 19, a second locking piece 20, a third sliding sleeve 21, a third locking piece 22, a third measuring cross rod 23, a third locking piece 24, a first angle dial 25, an L-shaped side 26, an L-shaped other side 27, a rotating rod 28, a measuring pointer 29, a fourth scale 30, a second angle dial 31, a puncture needle tube 32, a third angle dial 33, a sliding rod 34, a fifth scale 35, a clamping piece 36, a needle tube 37 and a needle handle 38.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a spinal puncture positioning device comprises a cross rod 1, wherein a clamping part used for fixing the edge of an operating bed is arranged at the bottom of the cross rod 1, so that the device is fixed at the edge of the operating bed through the clamping part, in the embodiment, the clamping part comprises an L-shaped plate and a rotating rod 28, one L-shaped side 26 of the L-shaped plate is vertically fixed at the bottom of the cross rod 1, the plate surface of the other L-shaped side 27 is arranged right opposite to the cross rod 1, the rotating rod 28 penetrates through the plate surface of the other L-shaped side 27 in a spiral mode, two ends of the rotating rod are respectively positioned at two opposite sides of the plate surface of the other L-shaped side 27 of the L-shaped plate, and the end part of the rotating rod 28, which is positioned between the plate surface of the other L-shaped side 27 of the L-shaped plate and the cross; preferably, the clamping portions are provided at both ends of the crossbar 1 in the length direction.

The top of the cross rod 1 is provided with a first scale 2 along the length mode, the side surface of the cross rod 1, which is far away from the side where the clamping opening of the clamping part is located, is provided with two fixed blocks 3 at intervals, a screw rod 4 is rotatably penetrated through the two fixed blocks 3, one end of the screw rod 4 is positioned at the outer sides of the two fixed blocks 3, a rotating handle 5 is slidably sleeved outside the end, the rotating handle 5 is meshed with the screw rod 4 through a first tooth-shaped structure, the outer part of the rotating handle 5 is meshed with a tooth-shaped cylinder 6 on the fixed block 3 through a second tooth-shaped structure, and the rotating handle 5 is slidably connected with the tooth-shaped cylinder 6; a slide block 7 is arranged between the two fixed blocks 3, the slide block 7 is sleeved on the screw rod 4 and is in threaded connection with the screw rod 4, one end of the sliding block 7 facing the transverse plate is also connected with the transverse plate in a sliding way, the top of the sliding block 7 is provided with a first angle dial 25, a vertical rod 9 is arranged at the center of the plate in a rotating way, so that the screw rod 4 is driven to rotate by the rotation of the rotating handle 5 relative to the fixed block 3 after being separated from the tooth-shaped cylinder 6, thereby driving the slide block 7 to slide along the direction of the first scale 2, so that the vertical rod 9 moves to the plane where the puncture point and the lesion part are located, then, the rotating handle 5 is fixed relative to the fixed block 3 by the way that the rotating handle 5 is meshed with the toothed cylinder 6, and then impel montant 9 not to slide relative horizontal pole 1, and the setting of first scale 2 is convenient for know the pathological change position through CT to be convenient for montant 9 relative horizontal pole 1's removal. Preferably, the end of the vertical rod 9 close to the slider 7 is provided with an indicating pointer, the indicating pointer is located right above the first angle dial 25, and is slightly higher than the first angle dial 25, so as to know the rotating angle of the vertical rod 9. Montant 9 rotates through set casing 8 and installs on slider 7, first angle calibrated scale 25 sets up the top at set casing 8, set casing 8 is worn to establish by the one end of montant 9, and stretches into in the set casing 8, and with set casing 8 rotates through the bearing and connects, and this one end is connected the one end that adjusts pole 11 and be located set casing 8 inboard through the meshing of gear train 10, adjust pole 11 and rotate through the bearing and connect set casing 8, its other end wear to establish extremely the top of set casing 8 to be locked after making montant 9 rotate.

The vertical pole 9 is placed vertically, the second scale 12 is arranged on the pole body of the vertical pole 9, the first measuring cross rod 151, the second measuring cross rod 191 and the third measuring cross rod 231 are sequentially arranged on the pole body of the vertical pole 9 in a sliding mode from bottom to top, and the first measuring cross rod 151, the second measuring cross rod 191 and the third measuring cross rod 231 are all perpendicular to the vertical pole 9.

The first measuring cross rod 151 comprises a first cross rod 1 fixing section and a first cross rod 1 telescopic section, one end of the first cross rod 1 fixing section is sleeved on the vertical rod 9 through a first sliding sleeve 13, the other end of the first cross rod 1 fixing section is inserted in a sliding mode, a third scale is arranged on the first cross rod 1 telescopic section, and a first locking part 16 for preventing sliding is arranged at the overlapping position of the first cross rod 1 fixing section and the third scale; the first measuring cross rod 151 is used for simulating and indicating the position of a lesion part, wherein the height of the lesion part is obtained through a CT, the first measuring cross rod 151 slides up and down to the corresponding position along the rod body of the vertical rod 9 and is fixed through the first locking piece 16, the position of the first measuring cross rod 151 is determined through the second scale 12, and the third scale on the first measuring cross rod 151 is used for matching the horizontal distance from the puncture point on the CT to the lesion position.

The second measuring cross rod 191 comprises a second cross rod 1 fixing section and a second cross rod 1 telescopic section, one end of the second cross rod 1 fixing section is sleeved on the vertical rod 9 through a second sliding sleeve 17, the other end of the second cross rod 1 fixing section is inserted in a sliding mode, a second locking piece 20 for preventing sliding is arranged at the overlapping position of the second cross rod 1 telescopic section and the second cross rod 1 fixing section, a measuring pointer 29 is rotatably arranged on the side face of the end portion of the other end of the second cross rod 1 telescopic section, the rotating axis is horizontally arranged and perpendicular to the second cross rod 1, the measuring pointer 29 is of a telescopic structure, and fourth scales 30 are arranged in the length direction of the measuring pointer 29; when the puncture depth measuring device is used, the end part of the telescopic section of the second cross rod 1, which is far away from the fixed section of the second cross rod 1, is horizontally aligned and contacts with the puncture point marked on a patient under the telescopic action, when the second measuring cross rod 191 and the first measuring cross rod 151 are positioned on the same plane, the plane is not the plane where the puncture point and a lesion part are positioned, the telescopic length of the first measuring cross rod 151 is equal to the horizontal distance from the lesion part to the vertical rod 9, the telescopic length of the second measuring cross rod 191 is equal to the horizontal distance from the puncture point to the vertical rod 9, at the moment, the distance from the end part of the second measuring cross rod 191, which is far away from the second sliding sleeve 17, to the end part of the first measuring cross rod 151, which is far away from the first sliding sleeve 13 is the puncture depth, and the rotation center and one end of the measuring pointer 29 are respectively positioned at the end part of the second measuring cross rod 191, which is far away from the second sliding sleeve 17, and the end part of one end of the measuring cross rod 151 far away from the first sliding sleeve 13 is provided with a measuring pointer 29, the distance displayed by the measuring pointer 29 through the fourth scale 30 is the puncture depth, the angle of the measuring pointer relative to the second measuring cross rod 191 is the angle required to be inclined when the puncture needle 37 punctures, in order to obtain the angle, the side surface of the end part of the other end of the telescopic section of the second cross rod 1 is detachably provided with a first rotary disc, the disc surface of the first rotary disc is provided with a second angle dial 31, and the rotating center of the measuring pointer 29 is positioned at the disc center of the second angle dial 31.

The third measuring rail 231 includes a third rail 1 fixing section and a third rail 1 telescopic section, one end of the fixed section of the third cross rod 1 is sleeved on the vertical rod 9 through a third sliding sleeve 21, the other end is inserted with one end of the telescopic section of the third cross rod 1 in a sliding way, a third locking piece 24 for preventing sliding is arranged at the overlapping part of the telescopic section of the third cross rod 1 and the fixed section of the third cross rod 1, the side surface of the other end part of the telescopic section of the third cross rod 1 is rotatably provided with a needle tube 32 for a puncture needle 37 to penetrate through, the rotating axis is horizontally arranged, and is perpendicular to the third cross bar 1, one end of the needle tube 32 departing from the second measuring cross bar 191 is slidably provided with a sliding bar 34, the sliding direction is the length direction of the needle tube 32, a rod body of the sliding bar 34 is provided with a fifth scale 35, a clamping piece 36 for clamping a puncture needle 37 is arranged at one end of the needle tube 32; the puncture needle 37 is fixed and positioned by the third measuring cross bar 231, specifically, the sliding of the third sliding sleeve 21 relative to the vertical rod 9 makes the distance between the third measuring cross bar 231 and the second measuring cross bar 191 smaller than the length of the puncture needle 37, the rotation of the needle tube 32 relative to the third measuring cross bar 231 makes the inclination angle of the third measuring cross bar 231 equal to the inclination angle of the measuring pointer 29 relative to the second measuring cross bar 191, the extension and retraction of the third measuring cross bar 231 makes the needle tube 32 and the measuring pointer 29 on the same straight line, at this time, the puncture needle 37 passes through the needle tube 32, the needle handle 38 is clamped by the clamping piece 36, the clamping piece 36 can be a clamp structure, and the distance between the clamping piece 36 and the needle tube 32 is equal to the length displayed by the fourth scale 30 on the measuring pointer 29, at this time, the distance between the third measuring cross bar 231 and the second measuring cross bar 191 can be adjusted to make the needle head of the puncture needle 37 face the end of the second measuring cross bar, the vertical rod 9 is rotated to enable the needle head to be opposite to the puncture point on the body of the patient, so that the positioning is completed, when the puncture is to be performed, the puncture needle 37 is pushed to enable the puncture needle 37 to be punctured into the human body, and when the clamping piece 36 touches the needle tube 32, the puncture needle 37 is punctured to the lesion part. Preferably, for the turned angle who learns needle tubing 32 accurately, the utility model discloses the tip side of the other end of the flexible section of third horizontal pole 1 can be dismantled and set up the second carousel, the quotation of second carousel is provided with third angle calibrated scale 33, the center of rotation of needle tubing 32 is located the dish center of third angle calibrated scale 33. Further, a fourth locking member is provided on the slide bar 34 for preventing the slide bar from sliding relative to the needle tube 32, so that the distance between the clamping member 36 and the needle tube 32 is fixed, and when puncturing is required, the fourth locking member is unlocked, so that the slide bar 34 can slide relative to the needle tube 32.

First sliding sleeve 13, second sliding sleeve 17 and third sliding sleeve 21 are just for transparent to the part of first scale 2 to in order to learn the height that first measurement horizontal pole 151, second measurement horizontal pole 191 and third measurement horizontal pole 231 removed, preferably, each scale mark of first scale 2 all encircles the circumference of montant 9, be provided with on the first sliding sleeve 13 and prevent its gliding first locking piece 14, be provided with on the second sliding sleeve 17 and prevent its gliding second locking piece 18, be provided with on the third sliding sleeve 21 and prevent its gliding third locking piece 22.

Preferably, in another embodiment of the present invention, a measuring rod is detachably disposed on the measuring pointer 29, the measuring rod is disposed in parallel with the measuring pointer 29, one end of the measuring rod is connected to the side pointer, and the other end of the measuring rod extends to the position of the third measuring cross bar 231, so as to measure and enable the needle tube 32 and the measuring pointer 29 to be in the same straight line through the measuring rod.

The utility model discloses in, first locking piece 16, second locking piece 20, third locking piece 24 and fourth locking piece are screw extrusion locking structure, do other structures.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spinal puncture positioner, includes the horizontal pole, the bottom of horizontal pole is provided with the clamping part that is used for fixed operation bedside, its characterized in that: the top of the cross rod is provided with a first scale along the length mode, two fixing blocks are arranged on the side, away from the clamping opening of the clamping part, of the cross rod at intervals, lead screws penetrate through the two fixing blocks in a rotating mode, one ends of the lead screws are located on the outer sides of the two fixing blocks, rotating handles are sleeved outside the ends in a sliding mode, the rotating handles are meshed and connected with the lead screws through first tooth-shaped structures, the outer portions of the rotating handles are meshed and connected with tooth-shaped cylinders on the fixing blocks through second tooth-shaped structures, and the rotating handles are connected with the tooth-shaped cylinders in a sliding mode; a sliding block is arranged between the two fixed blocks, the sliding block is sleeved on the screw rod and is in threaded connection with the screw rod, one end of the sliding block, facing the transverse plate, is also in sliding connection with the transverse plate, a first angle dial is arranged at the top of the sliding block, and a vertical rod is rotationally arranged at the center of the dial; the vertical rod is vertically placed, a second scale is arranged on a rod body of the vertical rod, a first measuring cross rod, a second measuring cross rod and a third measuring cross rod are sequentially arranged on the rod body of the vertical rod in a sliding mode from bottom to top, and the first measuring cross rod, the second measuring cross rod and the third measuring cross rod are all perpendicular to the vertical rod;

2. The spinal puncture positioning device of claim 1, wherein: the clamping part comprises an L-shaped plate and a rotary rod, one side of an L-shaped plate is vertically fixed at the bottom of the cross rod, the other side of the L-shaped plate is opposite to the cross rod, the rotary rod spirally penetrates through the plate on the other side of the L-shaped plate, and two ends of the rotary rod are respectively located on two opposite sides of the plate on the other side of the L-shaped plate.

3. The spinal puncture positioning device of claim 1, wherein: the sliding rod is provided with a fourth locking piece for preventing the sliding of the sliding rod relative to the needle tube.

4. The spinal puncture positioning device of claim 1, wherein: the montant is provided with the instruction pointer near the one end of slider, indicate the pointer and be located first angle calibrated scale directly over, and a little more than first angle calibrated scale.

5. The spinal puncture positioning device of claim 1, wherein: the montant passes through the set casing and rotates the installation on the slider, first angle calibrated scale sets up the top at the set casing, the set casing is worn to establish by the one end of montant, and stretches into in the set casing, and with the set casing passes through the bearing and rotates the connection, and this one end is connected the regulation pole through the gear train meshing and is located the inboard one end of set casing, adjust the pole and rotate through the bearing and connect the set casing, its other end is worn to establish extremely the top of set casing.

6. The spinal puncture positioning device of claim 1, wherein: a first rotary disc is detachably arranged on the side face of the end part of the other end of the telescopic section of the second cross rod, a second angle dial is arranged on the disc face of the first rotary disc, and the rotating center of the measuring pointer is positioned in the disc center of the second angle dial; the tip side of the other end of the flexible section of third horizontal pole can be dismantled and set up the second carousel, the quotation of second carousel is provided with the third angle calibrated scale, the rotation center of needle tubing is located the dish center of third angle calibrated scale.

7. The spinal puncture positioning device of claim 1, wherein: the measuring pointer is detachably provided with a measuring rod, the measuring rod and the measuring pointer are arranged in parallel, one end of the measuring rod is connected with the measuring pointer, and the other end of the measuring rod extends to the position of the third measuring cross rod.

8. The spinal puncture positioning device of claim 1, wherein: the first sliding sleeve is provided with a first locking piece for preventing the sliding of the first sliding sleeve, the second sliding sleeve is provided with a second locking piece for preventing the sliding of the second sliding sleeve, and the third sliding sleeve is provided with a third locking piece for preventing the sliding of the third sliding sleeve.