A lumbar puncture guide device for hematology

Abstract

The invention belongs to the technical field of medical auxiliary equipment, and discloses a lumbar puncture guide device for hematology, comprising a base, a puncture needle and an adjusting sleeve, wherein the base is connected to a limiting guide component and a fixing component, wherein the limiting guide component comprises a C-shaped seat, wherein the C-shaped seat is adjustably connected to a connecting piece, wherein the connecting piece is connected to a locking handle, a body position reference plate and a box body, wherein the box body is connected to a guide piece, a linkage piece, a rack, a gear, a linkage disk and a fixed ratchet, wherein both the guide piece and the linkage piece are provided with through holes, and the linkage disk is connected to a pawl and a tension spring; the invention utilizes a fixing component to fix the entire guide wire device on a platform, utilizes a guide piece of the limiting guide component to guide the puncture angle of the puncture needle, thereby ensuring the verticality of the puncture needle insertion, utilizes a linkage piece, a gear rack and a ratchet pawl of the limiting guide component to limit the puncture needle, thereby avoiding excessive puncture and reducing the risk of secondary medical accidents to patients.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a lumbar puncture guide device for hematology. Background Art

[0002] Hematology is a branch of internal medicine, mainly treating problems of the hematopoietic system, such as leukemia, multiple myeloma, myelodysplastic syndrome, etc. In the hematology department, lumbar puncture is a widely used and important diagnostic and treatment method, which mainly involves inserting a needle between the spinous processes of the posterior lumbar vertebrae to extract cerebrospinal fluid for relevant laboratory tests to confirm the diagnosis of the disease, or injecting antibiotics into the spinal canal through puncture techniques to achieve disease treatment.

[0003] When performing a lumbar puncture, the patient needs to lie on his side and keep the lumbar spine arched to a certain extent so that the medical staff can hold the puncture needle for puncture; in actual operation, the medical staff needs to stably insert the puncture needle into the gap between the fourth and fifth lumbar vertebrae. In order to avoid damaging the lumbar bones, it is necessary to ensure that the puncture needle is inserted vertically. However, even experienced doctors will inevitably experience hand tremors, and the puncture needle will deviate from the original insertion route, which may damage the lumbar bones; in addition, during the insertion of the puncture needle, when there is an obvious sense of failure, it indicates that the puncture needle has reached the designated position. At this time, the medical staff needs to immediately stop the puncture needle from going deeper to avoid excessive puncture; however, the sense of failure during the puncture process is difficult to achieve precise control based solely on the medical staff's operating feel, which brings a high risk of secondary medical accidents to patients. Summary of the invention

[0004] The present invention is intended to provide a lumbar puncture guide device for hematology, which uses a fixing assembly to fix the entire guide wire device on a platform, uses a C-shaped seat and a guide member of a position-limiting guide assembly to guide the angle of needle puncture insertion, thereby ensuring the verticality of the puncture needle insertion, and uses a linkage member, a gear rack, and a ratchet pawl of the position-limiting guide assembly to limit the position of the puncture needle after the puncture is completed, thereby avoiding excessive puncture and reducing the risk of secondary medical accidents for patients. The problem in the background technology is solved.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A lumbar puncture guide device for hematology, comprising a base, the base is connected to a fixing assembly for fixing the lumbar puncture guide device; the base is connected to a limiting guide assembly for limiting and guiding a puncture needle, an adjusting sleeve is sleeved on the outer side of the puncture needle, the limiting guide assembly comprises a C-shaped seat, the C-shaped seat is slidably connected to a connecting piece, the C-shaped seat is provided with an adjusting slot, the connecting piece is threadedly connected to a locking handle that penetrates the adjusting slot; the connecting piece is also connected to a body position reference plate and a box body, the body position reference plate is connected to the connecting piece through a second adjusting assembly with adjustable length; the box body is connected to a guide piece, a linkage piece, a rack, a gear, a linkage piece, a gear ... The movable disc and the fixed ratchet, the guide member and the linkage member are both provided with a through hole, and the diameter of the through hole is set between the outer diameter of the puncture needle and the minimum outer diameter of the adjusting sleeve, and the puncture needle is slidably inserted into the through hole; the linkage member and the rack are both slidably connected to the box body, and the rack is meshed with the gear; the gear and the linkage disc are coaxially fixed and rotatably connected to the box body, the linkage disc is connected with a pawl and a tension spring, the middle part of the pawl is rotatably connected to the linkage disc, and the two ends of the tension spring are respectively connected to one end of the pawl and the linkage disc; the fixed ratchet is fixedly connected to the box body, and the other end of the pawl is matched with the ratchet teeth of the fixed ratchet.

[0007] Furthermore, slide grooves are provided on both the upper and lower sides of the base, and the position limiting guide assembly and the fixing assembly are both connected with sliders that are arranged in cooperation with the slide grooves.

[0008] Furthermore, the slide groove is in a "convex" shape, and the sliding block is also configured to be in a "convex" shape to match the slide groove, and the sliding block is slidably disposed on the inner side of the slide groove.

[0009] Furthermore, the fixing assembly includes a fixing frame, the fixing frame is connected to the base through a first adjustment assembly, the fixing frame is connected to a locking bolt assembly, and the locking bolt assembly is rotatably connected to a locking gasket on the inner side of the fixing frame.

[0010] Furthermore, the first adjustment component includes a lower externally threaded rod, an internally threaded sleeve and an upper externally threaded rod, the thread rotation direction of the lower externally threaded rod is opposite to that of the upper externally threaded rod, and the lower externally threaded rod and the upper externally threaded rod are respectively connected to the two ends of the internally threaded sleeve through threads; the lower end of the lower externally threaded rod is connected to the upper end of the fixed frame, and the upper end of the upper externally threaded rod is connected to the lower end of the base.

[0011] Furthermore, the second adjustment component is a telescopic sleeve locked by bolts, and the position reference plate and the telescopic end of the second adjustment component are hinged by a universal ball.

[0012] Furthermore, the body position reference plate is an arc-shaped plate, and a buffer pad is detachably connected to the inside of the arc; the overall length of the adjusting sleeve is adjusted by a thread.

[0013] Furthermore, the position limiting guide assembly has two parts, the guide part is slidably connected between the two position limiting guide parts, the two linkage parts are respectively slidably and adjustably connected to the two racks, and the two linkage parts are mirror-symmetrically arranged with the horizontal center plane of the guide part as the reference plane.

[0014] Furthermore, a spring is connected between the guide member and the linkage member, and the puncture needle is sequentially inserted through the linkage member, the spring and the guide member.

[0015] Furthermore, the C-shaped seat is also connected to a third adjustment component for supporting the connecting member, the third adjustment component is a telescopic sleeve locked by bolts, and the connecting member and the telescopic end of the third adjustment component are rotatably connected through a rotating shaft.

[0016] The principle and beneficial effects of the technical solution are:

[0017] 1. The present invention provides a lumbar puncture guide device for hematology, wherein a fixing assembly is connected to a base to fix the entire guide device on a platform (a hospital bed, a storage cabinet, etc.) around the patient's puncture position, and a limiting guide assembly is connected to the base to guide and limit the puncture needle, thereby ensuring the verticality of the puncture needle relative to the patient's lumbar spine during puncture and avoiding excessive puncture; wherein an adjustment groove is provided on the C-shaped seat, and a connecting member connecting the guide member and the limiting assembly (a linkage member, a rack, a gear, a linkage disc, and a fixed ratchet, etc.) is adjusted along the adjustment groove under the action of a locking handle to adjust the position / angle of the connecting member, and the guide member is adjusted accordingly, thereby adjusting the position / angle of the puncture needle, thereby ensuring its relative position and verticality relative to the patient's lumbar spine during puncture; and an adjustable sleeve with an adjustable length is sleeved on the outside of the puncture needle, and the length of the adjusting sleeve is adjusted first, and the insertion depth is preset. When the puncture needle is about to be inserted When the depth reaches the designated depth, the end face of the adjusting sleeve abuts against the surface of the linkage member. In the process of continuing to stably and evenly insert the puncture needle, the puncture needle drives the adjusting sleeve to move, the adjusting sleeve drives the linkage member to move, the linkage member drives the rack to move, the rack drives the gear to rotate evenly, the rack drives the linkage disc to rotate evenly, and the ratchet on the linkage disc rotates evenly accordingly, and the two are stationary relative to each other; and after being inserted into the designated position, the puncture needle is not restricted by the lumbar spine, and the sudden feeling of falling into the air causes the puncture needle to accelerate, and the adjusting sleeve abuts against the linkage member so that it also has an accelerated movement, the linkage member drives the rack to accelerate suddenly, and the linkage disc is suddenly accelerated under the action of the gear, and the linkage disc that suddenly accelerates, the ratchet is thrown out under the action of its centrifugal force to overcome the action of the tension spring, so that it is engaged with the ratchet on the fixed ratchet, thereby limiting the movement of the linkage disc, restricting the further insertion of the puncture needle, and avoiding secondary medical accidents caused by excessive puncture;

[0018] 2. The present invention provides a lumbar puncture guide device for hematology. The fixing assembly uses a fixing frame and a locking bolt combination to fix the guide device, and the locking bolt combination is connected to a locking plate, so that the installation and fixing position can be adjusted according to actual conditions. The overall structure is simple and the installation and fixing are reliable. In addition, the first adjustment assembly that connects the fixing frame to the base uses a threaded sleeve to connect the upper threaded rod and the lower threaded rod through threads at both ends, and the threaded sleeve is rotated to make the upper threaded rod and the lower threaded rod move toward each other (move away from / approach each other), thereby realizing the adjustment of the height of the entire guide device. The structure is simple, the adjustment is convenient and fast, and the application range is wide.

[0019] 3. A lumbar puncture guide device for hematology provided by the present invention has a "convex"-shaped slide groove on the upper and lower sides of the base, and a slider matched with the slide groove is connected to the fixed component and the limit guide component, so that the fixed component and the limit guide component can adjust their relative position relationship with the base according to actual conditions to meet different usage requirements; and the slide groove and the slider are set to be a "convex" shape that cooperates with each other, so that the two play a role in limiting and guiding the sliding of the fixed component and / or the limit guide component, ensuring the uniformity and stability of the sliding;

[0020] 4. The present invention provides a lumbar puncture guide device for hematology, wherein the second adjustment component connecting the position reference plate and the third adjustment component supporting the connecting member are both telescopic sleeves locked by bolts, and the overall length of the adjustment sleeve is adjusted by thread, so that the adjustment is convenient and quick; the telescopic end of the position reference plate and the second adjustment component are hinged by a universal ball joint, so that the position reference plate can be adjusted to a corresponding angle according to actual needs, so that the position reference plate is in good contact with the patient's body, ensuring the accuracy of the patient's position, thereby ensuring the verticality of the puncture needle, and the position reference plate is also set to an arc shape, and a buffer pad is connected inside the arc shape to further improve the stability, reliability and comfort of the contact between the position reference plate and the patient's body; the connecting member and the telescopic end of the third adjustment component are rotatably connected by a rotating shaft, so that no matter the connecting member slides to any position / angle relative to the C-shaped seat, the third adjustment component can effectively support the connecting member;

[0021] 5. The present invention provides a lumbar puncture guide device for hematology, in which the limit guide component is set to two pieces, which can not only improve the stability of the component and make the guiding effect of the guide part on the puncture needle stable, but also when the puncture needle is inserted to a set depth, that is, when the end face of the adjustment sleeve abuts against the linkage part, the overall force is more uniform, which ensures the linear movement of the puncture needle while further restricting the movement of the puncture needle after entering the lumbar spine to avoid excessive puncture; and a spring is connected between the guide part and the linkage part, which not only realizes the secondary constraint on the puncture needle, but also can automatically reset the linkage part / rack when the puncture needle is recovered, ready for secondary reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic structural diagram of a lumbar puncture guide device for hematology of the present invention;

[0023] Figure 2 This is a front view of a lumbar puncture guide device for hematology of the present invention;

[0024] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0025] Figure 4 for Figure 2A partial cross-sectional view of the middle BB;

[0026] Figure 5 for Figure 2 Partial cross-sectional view of CC;

[0027] Figure 6 A top view of a lumbar puncture guide device for hematology of the present invention;

[0028] Figure 7 The present invention is an exploded view of a guide and limiting assembly of a lumbar puncture guide device for hematology.

[0029] The names of the corresponding marks in the accompanying drawings are:

[0030] Base 1, C-shaped seat 2, first adjustment component 3, fixed frame 4, locking bolt assembly 5, locking gasket 6, adjustment groove 7, connecting piece 8, box body 9, locking handle 10, second adjustment component 11, position reference plate 12, guide piece 13, linkage piece 14, spring 15, rack 16, gear 17, linkage disc 18, pawl 19, tension spring 20, fixed ratchet 21, third adjustment component 22, adjustment sleeve 23, puncture needle 24. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0032] like Figures 1 to 7 As shown, a lumbar puncture guide device for hematology includes a base 1, and the upper and lower sides of the base 1 are respectively connected with a limit guide component for limiting and guiding a puncture needle 24 and a fixing component for fixing the entire lumbar puncture guide device; wherein, the upper and lower sides of the base 1 are both provided with a "convex"-shaped slide groove, and the limit guide component and the fixing component are both connected with a "convex"-shaped slider arranged in cooperation with the slide groove, and the slider is slidably arranged on the inner side of the slide groove;

[0033] There are two fixing components, and both fixing components include a fixing frame 4, the fixing frame 4 is connected to the base 1 through the first adjustment component 3, the fixing frame 4 is connected to a locking bolt assembly 5, and the locking bolt assembly 5 is rotatably connected to a locking gasket 6 on the inner side of the fixing frame 4; wherein the first adjustment component 3 includes a lower external threaded rod, an internal threaded sleeve and an upper external threaded rod, the thread rotation direction of the lower external threaded rod is opposite to that of the upper external threaded rod, and the lower external threaded rod and the upper external threaded rod are respectively connected to the two ends of the internal threaded sleeve through threads; the lower end of the lower external threaded rod is connected to the upper end of the fixing frame 4, and the upper end of the upper external threaded rod is connected to the lower end of the base 1;

[0034] The outer side of the puncture needle 24 is sleeved with an adjusting sleeve 23, and the adjusting sleeve 23 can adjust its overall length through a thread;

[0035] The position limiting guide assembly includes a C-shaped seat 2, which is slidably connected to a connecting piece 8, the C-shaped seat 2 is provided with an adjustment slot 7, and the connecting piece 8 is threadedly connected to a locking handle 10 that is penetrated through the adjustment slot 7; the connecting piece 8 is also connected to a body position reference plate 12 and a box body 9, and the body position reference plate 12 is connected to the connecting piece 8 through a second adjustment assembly 11 with adjustable length; the box body 9 is connected to a guide piece 13, a linkage piece 14, a rack 16, a gear 17, a linkage disc 18 and a fixed ratchet 21, and the guide piece 13 and the linkage piece 14 are both provided with through holes, and the diameter of the through holes is set at the outer diameter of the puncture needle 24 and the minimum outer diameter of the adjusting sleeve 23, the puncture needle 24 is slidably arranged in the through hole; the linkage member 14 and the rack 16 are both slidably connected to the box body 9, and the rack 16 is meshed with the gear 17; the gear 17 and the linkage disc 18 are coaxially fixedly connected, and the shaft is rotatably connected to the box body 9, the linkage disc 18 is connected with a pawl 19 and a tension spring 20, the middle part of the pawl 19 is rotatably connected to the linkage disc 18, and the two ends of the tension spring 20 are respectively connected to one end of the pawl 19 and the linkage disc 18; the fixed ratchet 21 is fixedly connected to the box body 9, and the other end of the pawl 19 is matched with the ratchet teeth of the fixed ratchet 21;

[0036] Among them, the C-shaped seat 2 is also connected to a third adjustment component 22 for supporting the connecting member 8, and the second adjustment component 11 and the third adjustment component 22 are telescopic sleeves locked by bolts, the telescopic end of the position reference plate 12 and the second adjustment component 11 is hinged by a universal ball, and the telescopic end of the connecting member 8 and the third adjustment component 22 are rotatably connected by a rotating shaft; the position reference plate 12 is an arc-shaped plate, and a buffer pad is bonded inside the arc; and the limiting guide component is provided with two parts, the guide member 13 is slidably connected between the two box bodies 9, and the two linkage members 14 are respectively slidably and adjustably connected to the two racks 16, and the two linkage members 14 are mirror-symmetrically arranged with the horizontal center plane of the guide member 13 as the reference plane; a spring 15 is connected between the guide member 13 and the linkage member 14, and the puncture needle 24 is sequentially inserted into the linkage member 14, the spring 15 and the guide member 13.

[0037] The specific implementation process is as follows:

[0038] When using the present lumbar puncture guide device, the patient lies on the bed, firstly clamps the fixing frame 4 of the fixing assembly into a platform such as a bed body or a storage cabinet, and rotates the locking bolt assembly 5 so that the lower end of the locking gasket 6 abuts against the upper end of the plane to fix the entire device; and adjusts the fixing assembly and the limiting guide assembly along the slide groove of the base 1 according to the patient's position; then rotates the internal threaded sleeve of the first adjustment assembly 3 to adjust the height of the entire device, and then loosens the locking handle 10 and the bolts of the third adjustment assembly 22, and adjusts the position of the connecting piece 8 along the adjustment groove 7 of the C-shaped seat 2. / angle, after the adjustment is completed, use the locking handle 10 and the bolt to lock the connecting piece 8, then loosen the bolt of the second adjustment component 11, pull the position reference plate 12, so that the position reference plate 12 and the patient's body are evenly and stably abutted, and then tighten the bolt of the second adjustment component 11; then according to the distance of the entire device relative to the patient and the patient's body shape, rotate the adjusting sleeve 23 to preset the insertion depth of the puncture needle 24. After the adjustment is completed, the puncture needle 24 is evenly, stably and accurately inserted into the gap between the fourth and fifth lumbar vertebrae of the patient to facilitate subsequent diagnosis and treatment.

[0039] Among them, a "convex"-shaped slide groove is opened on the upper and lower sides of the base 1, and a slider matching the slide groove is connected to the fixed component and the limit guide component. The slide groove and the slider play a role of limiting and guiding the sliding of the fixed component and / or the limit guide component, ensuring the uniformity and stability of the sliding;

[0040] The fixing assembly uses a fixing frame 4 and a locking bolt combination 5 to fix the guide device so that the installation and fixing position can be adjusted according to actual conditions. The first adjustment assembly 3 uses a threaded sleeve to connect the upper threaded rod and the lower threaded rod through threads at both ends. The threaded sleeve is rotated to make the upper threaded rod and the lower threaded rod move toward each other (move away from / approach each other), thereby realizing the adjustment of the height of the entire guide device. It has a simple structure, convenient and quick adjustment, and a wide range of applications.

[0041] The second adjustment component 11 and the third adjustment component 22 use a telescopic sleeve locked by bolts, and the overall length of the adjustment sleeve 23 is adjusted by thread, which is convenient and quick to adjust; the telescopic end of the position reference plate 12 and the second adjustment component 11 is hinged by a universal ball, so that the position reference plate 12 can be adjusted to a corresponding angle according to actual needs, so that it can have good contact with the patient's body, ensure the accuracy of the patient's position, and thus ensure the verticality of the puncture needle 24. The position reference plate 12 is set to an arc shape, and a buffer pad is connected inside the arc shape, which improves the stability, reliability and comfort of the contact between the position reference plate 12 and the patient's body; the connecting member 8 and the telescopic end of the third adjustment component 22 are rotatably connected by a rotating shaft, so that no matter the connecting member 8 slides to any position / angle relative to the C-shaped seat 2, the third adjustment component 22 can effectively support the connecting member 8;

[0042] The adjusting sleeve 23 with adjustable length is sleeved on the outside of the puncture needle 24. The length of the adjusting sleeve 23 is adjusted first, and the insertion depth is preset. When the puncture needle 24 is about to be inserted to the specified depth, the end face of the adjusting sleeve 23 abuts against the surface of the linkage member 14. During the process of continuing to stably and evenly insert the puncture needle 24, the puncture needle 24 can be continuously inserted; and after being inserted into the specified position, the puncture needle 24 is no longer restricted by the lumbar spine, and the sudden sense of falling makes the puncture needle 24 suddenly accelerate. The adjusting sleeve 23 abuts against the linkage member 14 so that it also has an accelerated movement. The linkage member 14 drives the rack 16 to suddenly accelerate, and the linkage disc 18 is suddenly accelerated under the action of the gear 17. The linkage disc 18 that suddenly accelerates, the ratchet 19 is thrown out under the action of its centrifugal force to overcome the action of the tension spring 20, so that it is engaged with the ratchet on the fixed ratchet 21, thereby limiting the movement of the linkage disc 18, restricting the further insertion of the puncture needle 24, and avoiding secondary medical accidents caused by excessive puncture.

[0043] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A lumbar puncture guide device for hematology, comprising a base, wherein the base is connected to a fixing assembly for fixing the lumbar puncture guide device; characterized in that: The base is connected with a limit guide assembly for limiting and guiding the puncture needle, an adjustment sleeve is sleeved on the outer side of the puncture needle, the limit guide assembly includes a C-shaped seat, the C-shaped seat is slidably connected with a connecting piece, the C-shaped seat is provided with an adjustment slot, and the connecting piece is threadedly connected with a locking handle that penetrates the adjustment slot; the connecting piece is also connected with a body position reference plate and a box body, and the body position reference plate is connected to the connecting piece through a second adjustment assembly with adjustable length; the box body is connected with a guide piece, a linkage piece, a rack, a gear, a linkage disc and a fixed ratchet, and the guide piece and the linkage piece are both provided with through holes, and the through holes The diameters are set between the outer diameter of the puncture needle and the minimum outer diameter of the adjustment sleeve, and the puncture needle is slidably inserted into the through hole; the linkage member and the rack are both slidably connected to the box body, and the rack is meshed with the gear; the gear and the linkage disk are coaxially fixedly connected, and the gear and the linkage disk are both rotatably connected to the box body, the linkage disk is connected with a pawl and a tension spring, the middle part of the pawl is rotatably connected to the linkage disk, and the two ends of the tension spring are respectively connected to one end of the pawl and the linkage disk; the fixed ratchet is fixedly connected to the box body, and the other end of the pawl is matched with the ratchet teeth of the fixed ratchet; The position-limiting guide assembly has two pieces, the guide piece is slidably connected between the two position-limiting guide assemblies, the two linkage pieces are respectively slidably and adjustably connected to the two racks, and the two linkage pieces are mirror-symmetrically arranged with the horizontal center plane of the guide piece as the reference plane; A spring is connected between the guide member and the linkage member, and the puncture needle is sequentially inserted through the linkage member, the spring and the guide member; The C-shaped seat is also connected to a third adjustment component for supporting the connecting member, the third adjustment component is a telescopic sleeve locked by a bolt, and the connecting member and the telescopic end of the third adjustment component are rotatably connected through a rotating shaft; After being inserted into the designated position, the puncture needle is accelerated suddenly due to no restriction of the lumbar spine, and the adjusting sleeve abuts against the linkage member, causing the linkage member to accelerate, and the linkage member drives the rack to accelerate suddenly.

2. A lumbar puncture guide device for hematology according to claim 1, characterized in that: Slide grooves are provided on both the upper and lower sides of the base, and the position limiting guide assembly and the fixing assembly are both connected with sliders that are arranged in cooperation with the slide grooves.

3. A lumbar puncture guide device for hematology according to claim 2, characterized in that: The slide groove is in a "convex" shape, and the sliding block is also set to be a "convex" shape to match it. The sliding block is slidably arranged on the inner side of the slide groove.

4. A lumbar puncture guide device for hematology according to claim 1, characterized in that: The fixing assembly comprises a fixing frame, the fixing frame is connected to the base through a first adjusting assembly, the fixing frame is connected to a locking bolt assembly, and the locking bolt assembly is rotatably connected to a locking gasket on the inner side of the fixing frame.

5. A lumbar puncture guide device for hematology according to claim 4, characterized in that: The first adjustment component includes a lower externally threaded rod, an internally threaded sleeve and an upper externally threaded rod. The thread rotation direction of the lower externally threaded rod is opposite to that of the upper externally threaded rod. The lower externally threaded rod and the upper externally threaded rod are respectively connected to the two ends of the internally threaded sleeve through threads; the lower end of the lower externally threaded rod is connected to the upper end of the fixed frame, and the upper end of the upper externally threaded rod is connected to the lower end of the base.

6. A lumbar puncture guide device for hematology according to claim 1, characterized in that: The second adjustment component is a telescopic sleeve locked by bolts, and the body position reference plate is hinged to the telescopic end of the second adjustment component through a universal ball joint.

7. A lumbar puncture guide device for hematology according to claim 6, characterized in that: The body position reference plate is an arc-shaped plate, and a buffer pad is detachably connected inside the arc; the overall length of the adjusting sleeve is adjusted by a thread.

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