Lumbar puncture body position fixing device

Abstract

The invention relates to the technical field of medical instruments, in particular to a lumbar puncture body position fixing device which comprises a body supporting seat in a horizontal state, a neck bending set rotationally arranged at the right end of the body supporting seat and a leg bending set rotationally arranged at the left end of the body supporting seat. Force is mainly generated by bending the waist of a patient, the pair of rotating tables are driven to reversely deflect by means of force applied by the two arms and the two legs, then the locking strip is driven to move forwards till bending and stopping, the locking grooves in the locking strip are correspondingly connected with the pair of locking tongues in a clamped mode, and the locking tongues are extruded through the limiting rods to form the state of locking the locking strip. The upper half body spine is ensured to be in an arched positioning state, so that spinal fluid is stably extracted from a bent spine gap, the fixing device is suitable for being fixed and used by different patients, and the condition of pressure sores does not exist in the spine bending process; the overall use is convenient, stable and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a lumbar puncture position fixing device. Background Art

[0002] Lumbar puncture is an invasive examination. Before the examination, you need to find the puncture point, and then use a professional puncture needle to puncture the subarachnoid space. You need to collect cerebrospinal fluid, and you need to do tests to get accurate results. In clinical treatment, the head is held and the knees are bent. The tighter you hold and the greater the bending range, the easier it is to locate. Once the body is positioned, you cannot move anymore. If the body moves slightly, the puncture point must be re-determined.

[0003] Application No. CN202321585061.X discloses a lumbar puncture position fixing device, including a flexible support member and a shaping plate, the shaping plate includes a back plate and a bottom plate connected by an angle adjustment device, the upper part of the flexible support member is connected to the end of the back plate away from the bottom plate through a shoulder connecting belt, and the lower part of the flexible support member is connected to the end of the bottom plate away from the back plate through a crotch connecting belt. The posture of the patient who needs to undergo lumbar puncture is fixed to prevent the patient from changing position due to pain, which greatly improves the work efficiency of medical staff in performing lumbar puncture.

[0004] However, the above patent is rather troublesome to wear and adjust the body bending angle, and in order to fix the patient to maintain the bending posture, it is easy to form pressure sores at the place where the connecting belt contacts the body for a long time; if it is worn loosely, it is easy to cause repeated punctures due to the patient's body movement, which not only increases the patient's pain, but also increases the workload of medical staff. In clinical practice, the use of flexible straps is very unstable, which brings risks to the puncture work and is not suitable for clinical use.

[0005] However, most hospitals currently do not have any auxiliary fixation devices to assist in lumbar spinal puncture surgery. Even if the patient is asked to curl up and then anesthetized for puncture, unstable puncture may still occur. Especially since puncture is a natural reaction of the muscles, it will particularly affect the accuracy of the puncture. Currently, there is still no effective way to solve this problem clinically. Summary of the invention

[0006] In order to overcome the defects in the prior art, the purpose of the present invention is to provide a lumbar puncture position fixation device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides a lumbar puncture body position fixing device, comprising a torso support seat in a flat state, a curved neck group rotatably arranged at the right end of the torso support seat, and a curved leg group rotatably arranged at the left end of the torso support seat, the torso support seat is used to support the upper torso lying on its side, and the head and neck are restricted by the curved neck group, and the lower limbs are restricted by the curved leg group, so as to form an arched positioning state of the upper torso spine; the torso support seat comprises a pair of support plates in a flat state, a rotating table correspondingly rotatably sleeved on the support plates, and a self-locking structure that simultaneously meshes with the pair of rotating tables in a horizontal direction; a hinge plate is rotatably connected between the near ends of the pair of support plates, and the self-locking structure comprises a locking strip that is slidably engaged with the midline of the hinge plate, two locking tongues symmetrically embedded in the middle of the hinge plate, and a limiting rod for correspondingly resisting the locking tongue from engaging the locking strip; the locking strip is T-shaped, and a plurality of locking grooves are provided at equal intervals through the bottom side wall, and a pair of locking tongues are engaged with one of the locking grooves; By lying on a pair of rotating tables sideways, and then controlling the bent neck group with both arms and the bent leg group with both legs to move closer together, the two rotating tables are driven to rotate in opposite directions, thereby driving the locking bar to move forward; in this process, a number of locking grooves will push a pair of locking tongues to bounce out of the way until the spine is bent in place and one of the locking grooves is engaged with the locking tongue, then as the body rebounds due to relaxation, the pair of rotating tables are driven by the hands and legs to rotate, thereby driving the locking bar to move backward, and then the locking grooves are used to engage with the pair of locking tongues, and the locking tongues are squeezed against the inner end of the limit rod to form a state of locking the lock bar, thereby ensuring that the upper body spine is in an arched and positioned state.

[0008] As a further improvement of the present technical solution, a sliding groove is provided at the midline of the length direction of the hinge plate and is slidably engaged with the bottom of the vertical section of the lock bar. Positioning grooves are symmetrically provided on both sides of the middle of the sliding groove. The lock tongue is in a rectangular shape and is placed in the positioning groove. The top of the positioning groove is tightly engaged with the blocking block, and one end of the lock tongue is a rounded end and is horizontally rotatably connected to the blocking block through a pin.

[0009] As a further improvement of the present technical solution, the rotation radius of the lock tongue is smaller than the length of the positioning groove, and a V-shaped spring piece is arranged in the front end of the positioning groove. The angle of the spring piece is an obtuse angle and one side edge thereof is bonded to the inner wall of the positioning groove, and the other side edge of the spring piece is in contact with the front side surface of the lock tongue.

[0010] As a further improvement of the present technical solution, the rear end of the hinge plate is symmetrically provided with rod holes, which are stepped holes and whose small-diameter holes penetrate into the positioning groove. The outer end of the limit rod is sleeved with a turning handle and the turning handle is threadedly connected to the large-diameter hole of the rod hole. The inner end of the limit rod abuts against the rear side of the lock tongue so that the lock tongue is inserted into the lock groove and then presses the lock bar to move backward; the width of the lock groove is greater than the width of the lock tongue. When the rearward-moving limit rod leaves the positioning groove, the lock tongue rotates out of the lock groove under the deformation elastic force of the spring sheet, thereby releasing the resistance restriction on the lock bar.

[0011] As a further improvement of the present technical solution, the lock tongue is provided with an inclined sliding surface at the right-angled end of the side surface of the limit rod, and the limit rod is reset by moving forward and contacting the inclined sliding surface to push it to a vertical position with the inner wall of the positioning groove, thereby forming a state of resisting the lock bar; the left and right sides of the top surface of the lock bar are rack structures, and the bottom surface of the rotating table is provided with an open toothed ring near the edge, and the open toothed ring is engaged with the rack structure on one side of the lock bar, and limit blocks are symmetrically provided at the front and rear ends of the top surface of the lock bar.

[0012] As a further improvement of the present technical solution, the top surface of the support plate is provided with a concentric ring table, the outer side surface of the ring table is provided with a ring groove, the bottom surface of the rotating table is provided with a clamping table which is sleeved with the ring table, the side wall of the clamping table is symmetrically provided with through grooves, an arc block is inserted in the through groove and the inner end of the arc block is inserted and slidably connected with the ring groove.

[0013] As a further improvement of the present technical solution, the curved neck group includes a fan-shaped head support plate, a neck cushion rotatably inserted at the front side of the top surface of the head support plate, and a grip column rotatably inserted at the rear side of the top surface of the head support plate; the neck cushion is a straight plate and a curved cushion is bonded to one side; a clamping block is provided at the inner arc end of the head support plate, and a number of clamping slots are evenly spaced at the bottom edge of the rotating table, and the clamping block is T-shaped and is adapted to be clamped with the clamping slots.

[0014] As a further improvement of the present technical solution, a plurality of neck fixing holes are provided on the top surface of the head support plate and at the front edge, a circular shaft is embedded in the bottom of the neck support cushion and the circular shaft is plugged and rotated with the neck fixing hole; a plurality of arm fixing holes are provided on the top surface of the head support plate and at the rear edge, a circular shaft is embedded in the bottom of the grip column and the circular shaft is plugged and rotated with the arm fixing hole.

[0015] As a further improvement of the present technical solution, the curved leg group includes a fan-shaped leg resting board, a top knee board rotatably inserted at the rear side of the top surface of the leg resting board, and a leg retracting pad rotatably inserted at the front side of the top surface of the leg resting board; the inner arc end of the leg resting board is provided with a clamping block engaged with the clamping slot, the top knee board is a rounded folding board and a silicone pad is bonded to the inner side thereof, a limiting column is provided on one side of the inner rounded corner of the top knee board, and the leg retracting pad is a straight board and a curved soft pad is bonded to one side.

[0016] As a further improvement of the present technical solution, a plurality of leg fixing holes are provided on the top surface of the leg resting board and at the front edge, a cylinder is embedded in the bottom of the leg retracting pad and the cylinder is plugged and rotated with the leg fixing holes, a plurality of knee fixing holes in two rows are provided on the top surface of the leg resting board and at the rear edge, a cylinder is embedded in the bottom of the top knee plate and the limiting column and the cylinder is plugged and rotated correspondingly with the knee fixing holes.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The lumbar puncture position fixing device is used to support the upper body lying on its side through the provided torso support seat, limit the head and neck through the flexion neck group, and limit the lower limbs and legs through the flexion leg group, so as to form an arched and positioned state of the upper body spine; the patient's waist is mainly bent to exert force, and with the help of the force of the arms and legs, a pair of rotating tables are driven to deflect in the opposite direction, thereby driving the locking bar to translate forward until the bending stops, and the locking groove on the locking bar is correspondingly engaged with a pair of locking tongues, and the locking tongues are squeezed by the limiting rod to form a state of locking the locking bar, that is, to ensure that the upper body spine forms an arched and positioned state, so that cerebrospinal fluid can be stably extracted from the gap of the curved spine. This fixing device is suitable for fixed use by different patients, and there is no pressure sore in the process of maintaining the curvature of the spine; and after fixation, the problem of inaccurate puncture caused by muscle reflex activity during puncture is effectively solved, and after one patient uses it, it can be quickly unlocked and reset, and the next patient lies on his side, and the surgical position can be quickly completed, which saves a lot of time for the operation, improves the operation efficiency, and further benefits the patients.

[0018] 2. The lumbar puncture position fixation device limits the backward tilt of the head by means of a curved neck group, and adaptively adjusts the angle of force applied to the patient's neck and hands by means of the free rotation of the neck cushion and the grip column on the head support plate, and is suitable for different patients.

[0019] 3. The lumbar puncture position fixation device limits the leg extension by means of the provided leg bending group, and utilizes the knee-supporting plate and the leg-collecting pad to rotate freely on the leg-resting plate to adaptively adjust the angle of contact with the patient's knees and a pair of calves, and is suitable for different patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are only for explanation purposes and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the various components in the drawings are only schematic, used to help understand the present invention, and are not specifically limited to the shapes and proportional dimensions of the various components of the present invention. Those skilled in the art, under the guidance of the present invention, select various possible shapes and proportional dimensions to implement the present invention according to specific circumstances.

[0021] Figure 1 It is a schematic diagram of the overall assembly structure of the present invention.

[0022] Figure 2 For the present invention Figure 1 Top view of the .

[0023] Figure 3 It is a schematic diagram of the assembly structure of the body support seat of the present invention.

[0024] Figure 4 It is a disassembled diagram of the turntable of the present invention.

[0025] Figure 5 It is a partial exploded view of the trunk support seat of the present invention.

[0026] Figure 6 It is a schematic diagram of the assembly structure of the self-locking structure of the present invention.

[0027] Figure 7 It is a disassembled view of the lock tongue and the limiting rod assembly of the present invention.

[0028] Figure 8 It is a schematic diagram of the hinge plate structure of the present invention.

[0029] Fig. 9 It is a schematic diagram of the internal assembly structure of the hinge plate of the present invention.

[0030] Fig.10 It is a full cross-sectional view of the hinge plate of the present invention.

[0031] Fig.11 It is a split diagram of the curved neck group of the present invention.

[0032] Fig.12 It is a disassembled diagram of the bent leg group of the present invention.

[0033] Fig.13 It is a schematic diagram of the clinical use status of the present invention.

[0034] The meaning of each number in the figure is: 100, support seat; 110, support plate; 111, hinge plate; 1111, slide groove; 1112, positioning groove; 1114, rod hole; 112, ring platform; 1121, ring groove; 120, rotating platform; 121, open gear ring; 122, clamping groove; 123, clamping platform; 1231, through groove; 130, self-locking structure; 131, locking strip; 1311, locking groove; 1312, limiting block; 132, locking tongue; 1321, inclined sliding surface; 133, limiting rod; 134, spring piece; 140, cushion; 200, curved neck assembly; 210, head support plate; 211, clamping block; 212, fixed neck hole; 213, fixed arm hole; 220, neck cushion; 230, grip column; 300, bent leg group; 310, leg board; 311, knee-fixing hole; 312, leg-fixing hole; 320, knee-supporting board; 321, limiting column; 330, leg-collecting pad. DETAILED DESCRIPTION

[0035] The details of the present invention can be more clearly understood by combining the accompanying drawings with the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only used for the purpose of explaining the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, the technical personnel's conception is based on any possible variation of the present invention, which should be regarded as belonging to the scope of the present invention. The terms "installation" and "connection" should be understood in a broad sense, which means direct connection and indirect connection through an intermediate medium.

[0036] The terms "central axis", "vertical", "horizontal", "front", "back", "up", "down", "left", "right", "top", "bottom", "inside", "outside" and the like used herein to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0037] See also Figure 1-Figure 13 As shown, the present invention provides a lumbar puncture position fixing device, comprising a torso support seat 100 in a flat state, a curved neck group 200 rotatably arranged at the right end of the torso support seat 100, and a curved leg group 300 rotatably arranged at the left end of the torso support seat 100. The torso support seat 100 is used to support the upper torso lying sideways, and the head and neck are restricted by the curved neck group 200, and the lower limbs are restricted by the curved leg group 300, so that the upper torso spine is arched and positioned; because the back spine needs to be bent when extracting cerebrospinal fluid, a gap is opened to facilitate needle extraction, and extraction is easy to succeed when the back is in a stable state of bending; The body support seat 100 includes a pair of support plates 110 in a flattened state, a rotating platform 120 correspondingly rotatably sleeved on the support plates 110, and a self-locking structure 130 that engages with the pair of rotating platforms 120 in a horizontal direction at the same time; a soft cushion 140 is clamped on the top surface of the rotating platform 120 to play a buffering role, so that the patient can lie sideways comfortably; a hinge plate 111 is rotatably connected between the near ends of the pair of support plates 110, so that the pair of support plates 110 can be folded down and stored when not in use; The top surface of the support plate 110 is provided with a concentric ring platform 112, and the outer side surface of the ring platform 112 is provided with a ring groove 1121. The bottom surface of the rotating table 120 is provided with a clamping table 123 which is sleeved with the ring platform 112, and the side wall of the clamping table 123 is symmetrically provided with through grooves 1231. An arc block is inserted into the through groove 1231, and the inner end of the arc block is inserted and slidably inserted into the ring groove 1121, so that the rotating table 120 can stably support the body bending above the support plate 110.

[0038] refer to Fig.13It can be seen that when it is used clinically, it is to be placed or installed on the puncture operating table. Since the puncture site is at the patient's waist, there are no particularly strict hospital infection requirements. During the puncture operation, the patient should lie on the operating table on his side with his hip joint facing the rotating table 120. The upper limbs and lower limbs correspond to the bent leg group and the bent neck group of the device respectively. The patient exerts force by himself and cooperates with the surgeon to quickly reach the specified curled position, and then perform anesthesia surgery. The structure of the present application is a core device. When it is used clinically, it can be placed on the operating table or installed and fixed on the operating table. The best way is to install it on the operating table. The rotating table 120 is level with the bed surface for the best effect. Of course, when installing, the bent neck group 200 and the bent leg group 300 need to be bent to adapt to the plane of the operating table. Since this technical feature has no direct relationship with the technical effect of the present technical solution, it is not reflected in the claims. It is explained in the embodiments that improvements in the curvature and angle of the bent neck group 200 and the bent leg group 300 should also fall within the protection scope of the present technical solution.

[0039] like Figure 5-Figure 10 As shown, the self-locking structure 130 includes a lock bar 131 that is slidably engaged with the center line of the hinge plate 111, two lock tongues 132 that are symmetrically embedded in the middle of the hinge plate 111, and a limit rod 133 that is used to correspondingly resist the lock tongue 132 from clamping the lock bar 131; the lock bar 131 is T-shaped and a plurality of lock grooves 1311 are opened at equal intervals through the bottom side wall, and a pair of lock tongues 132 are clamped with one of the lock grooves 1311; because the limit rod 133 is against the rear of the lock tongue 132 to clamp the front side of the lock groove 1311, the lock bar 131 cannot move backward without releasing the limit rod 133, so that the lock bar 131 clamps a pair of rotating tables 120 through the lock bar 131 to prevent the body from being straightened and restored, that is, the body is guaranteed to be in a bent state.

[0040] Furthermore, a slide groove 1111 is provided at the midline of the length direction of the hinge plate 111, and is slidably engaged with the bottom of the vertical section of the lock bar 131. Positioning grooves 1112 are symmetrically provided on both sides of the middle of the slide groove 1111. The lock tongue 132 is a rectangular parallelepiped and is placed in the positioning groove 1112. The top of the positioning groove 1112 is tightly engaged with the block, and one end of the lock tongue 132 is a rounded end and is horizontally rotatably connected to the block through a pin. The rotation radius of the lock tongue 132 is smaller than the length of the positioning groove 1112. A V-shaped spring piece 134 is arranged in the front end of the positioning groove 1112. The angle of the spring piece 134 is an obtuse angle and one side of the spring piece 134 is bonded to the inner wall of the positioning groove 1112, and the other side of the spring piece 134 is in contact with the front side of the lock tongue 132; so that the lock tongue 132 is restricted to horizontal deflection in the positioning groove 1112, and automatically deflects forward and bounces away to avoid it as the lock bar 131 moves forward; in addition, when the resistance of the limit rod 133 is removed, the spring piece 134 restores its original shape of the obtuse angle and bounces the lock tongue 132 to rotate backward out of the lock groove 1311, so that the bent body can be straightened, and then the lock bar 131 is driven to slide to the rear end of the hinge plate 111 through the rotation of the pair of rotating tables 120, so as to wait for the next forward movement to limit the pair of rotating tables 120.

[0041] Furthermore, the rear end of the hinge plate 111 is symmetrically provided with a rod hole 1114, which is a stepped hole and whose small diameter hole penetrates into the positioning groove 1112. The outer end of the limiting rod 133 is sleeved with a turning handle and the turning handle is threadedly connected with the large diameter hole of the rod hole 1114, so that the limiting rod 133 is inserted into the rod hole 1114 to be positioned, and stably resists the lock tongue 132 and then rotates, avoiding losing the limiting effect on the lock groove 1311, that is, ensuring the state after the body is bent; The inner end of the limiting rod 133 abuts against the rear side of the locking tongue 132 so that the locking tongue 132 is inserted into the locking groove 1311 and then moves backward against the locking bar 131; the width of the locking groove 1311 is greater than the width of the locking tongue 132. When the limiting rod 133 moves backward and leaves the positioning groove 1112, the locking tongue 132 rotates out of the locking groove 1311 under the deformation elastic force of the spring piece 134, thereby releasing the resistance restriction on the locking bar 131; when unlocking is required, the limiting rod 133 can be operated to unlock by pulling out the mattress. It should be noted that in clinical use, a groove is opened on the bed board and corresponds to the limiting rod 133, and is sealed with a mattress. This will not affect the use and is also convenient to operate.

[0042] Furthermore, the locking tongue 132 is provided with an inclined sliding surface 1321 at a right angle end toward the side of the limiting rod 133. By moving the limiting rod 133 forward to reset and contact the inclined sliding surface 1321, it is pushed to be perpendicular to the inner wall of the positioning groove 1112, thereby forming a state of resisting the locking bar 131; the left and right sides of the top surface of the locking bar 131 are rack structures, and the bottom surface of the rotating table 120 and near the edge are provided with an open toothed ring 121, which is meshed with the rack structure on one side of the locking bar 131, and the front and rear ends of the top of the locking bar 131 are symmetrically provided with limit blocks 1312; Figure 4 As shown, the open toothed ring 121 is a part of the annular toothed ring structure, and the limit block 1312 is pressed against the ring wall of the open toothed ring 121 to limit the continued rotation of a pair of rotating tables 120, so that after being stored or transferred, when being taken out for use again, the rotating table 120 and the locking bar 131 are in a meshing state.

[0043] like Figure 1-Figure 2 and Fig.11 As shown, the bending neck group 200 includes a fan-shaped head support plate 210, a neck cushion 220 rotatably plugged at the front side of the top surface of the head support plate 210, and a grip column 230 rotatably plugged at the rear side of the top surface of the head support plate 210; the neck cushion 220 and the grip column 230 restrict the back neck and arms from being placed on the head support plate 210 for synchronous movement; the neck cushion 220 is a straight plate with a curved soft cushion bonded on one side, so that the back neck can lean on it comfortably; a clamping block 211 is provided at the inner arc end of the head support plate 210, and a plurality of clamping grooves 122 are provided at equal intervals at the bottom edge of the rotating platform 120, and the clamping block 211 is T-shaped and is adapted to be clamped with the clamping grooves 122, so that the head support plate 210 can adjust the angle with the rotating platform 120, which is suitable for different individual patients to use for bending and achieve the best degree of spinal bending state; A plurality of neck holes 212 are provided on the top surface of the head support plate 210 and at the front edge, a circular shaft is embedded in the bottom of the neck support pad 220 and the circular shaft is plugged and rotated with the neck hole 212; a plurality of arm holes 213 are provided on the top surface of the head support plate 210 and at the rear edge, a circular shaft is embedded in the bottom of the grip column 230 and the circular shaft is plugged and rotated with the arm hole 213; the neck support pad 220 and the grip column 230 can rotate freely and adaptively adjust the force angle of contact with the patient's neck and hands.

[0044] like Figure 1-Figure 2 and Fig.12 As shown, the bent leg group 300 includes a fan-shaped leg-resting board 310, a knee-up board 320 rotatably plugged at the rear side of the top surface of the leg-resting board 310, and a leg-collecting pad 330 rotatably plugged at the front side of the top surface of the leg-resting board 310; the knee-up board 320 and the leg-collecting pad 330 are used to limit the legs to be folded on the leg-resting board 310 for synchronous movement; the inner arc end of the leg-resting board 310 is provided with a clamping block 211 clamped with the clamping groove 122, so as to be clamped and linked with another rotating table 120; the knee-up board 320 is a rounded folding board with a silicone pad bonded to its inner side, a limiting column 321 is provided on one side of the inner rounded corner of the knee-up board 320, and the leg-collecting pad 330 is a straight board with a curved soft pad bonded on one side; so that the knee joint and the tibia of the calf can be exerted comfortably; A plurality of leg fixing holes 312 are provided on the top surface of the leg resting board 310 and located at the front edge, a cylinder is embedded in the bottom of the leg retracting pad 330 and the cylinder is plugged and rotated with the leg fixing hole 312, a plurality of knee fixing holes 311 in two rows are provided on the top surface of the leg resting board 310 and located at the rear edge, a cylinder is embedded in the bottom of the knee-supporting board 320 and the limiting column 321 and the cylinder is plugged and rotated correspondingly with the knee-supporting hole 311; the knee-supporting board 320 and the leg retracting pad 330 can rotate freely and adaptively adjust the angle of contact with the patient's knees and a pair of calves.

[0045] When the lumbar puncture position fixing device of the present invention is used, the patient lies on the operating table and lies sideways on a pair of rotating tables 120, with the head placed on the head support board 210, the legs placed on the leg support board 310, and the back of the neck resting on the curved side of the neck cushion 220. The patient grasps the gripping column 230 with both hands to control the head support board 210 to drive the rotating table 120 to deflect; at the same time, the patient bends the knees and places the legs on the inner side of the knee support board 320, and the outer side of the calf rests on the leg retracting pad 330 to be restricted; At this time, the pair of rotating platforms 120 are driven to deflect in the opposite direction by bending the waist and using the force of the arms and legs, thereby driving the locking bar 131 to move forward; in this process, a number of locking grooves 1311 will push the pair of locking tongues 132 to bounce away until the spine is bent in place and one of the locking grooves 1311 is engaged with the locking tongue 132. Then, as the body rebounds due to relaxation, the pair of rotating platforms 120 are driven by the hands and legs to rotate, thereby driving the locking bar 131 to move backward, and the locking grooves 1311 are correspondingly engaged with the pair of locking tongues 132, and the locking tongues 132 are squeezed by the limiting rod 133 to form a state of locking the locking bar 131, that is, to ensure that the upper body spine is in an arched and positioned state, so that cerebrospinal fluid can be stably extracted from the gap in the curved spine.

[0046] It should be noted that the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A lumbar puncture position fixation device, characterized in that: The invention comprises a torso support seat in a flat state, a curved neck group rotatably arranged at the right end of the torso support seat, and a curved leg group rotatably arranged at the left end of the torso support seat, the torso support seat is used to support the upper torso lying on its side, the head and neck are restricted by the curved neck group, and the lower limbs are restricted by the curved leg group, so as to form an arched and positioned state of the spine of the upper torso; the torso support seat comprises a pair of support plates in a flat state, a rotating table rotatably sleeved on the support plates, and a self-locking structure that simultaneously engages with the pair of rotating tables in a horizontal direction; a hinge plate is rotatably connected between the near ends of the pair of support plates, and the self-locking structure comprises a locking strip that is slidably engaged with the midline of the hinge plate, two locking tongues symmetrically embedded in the middle of the hinge plate, and a limiting rod for correspondingly resisting the locking tongue from engaging the locking strip; the locking strip is T-shaped and a plurality of locking grooves are provided at equal intervals through the bottom side wall, and a pair of locking tongues are engaged with one of the locking grooves; By lying on a pair of rotating tables sideways, and then controlling the bent neck group with both arms and the bent leg group with both legs to move closer together, the two rotating tables are driven to rotate in opposite directions, thereby driving the locking bar to move forward; in this process, a number of locking grooves will push a pair of locking tongues to bounce out of the way until the spine is bent in place and one of the locking grooves is engaged with the locking tongue, then as the body rebounds due to relaxation, the pair of rotating tables are driven by the hands and legs to rotate, thereby driving the locking bar to move backward, and then the locking grooves are used to engage with the pair of locking tongues, and the locking tongues are squeezed against the inner end of the limit rod to form a state of locking the lock bar, thereby ensuring that the upper body spine is in an arched and positioned state.

2. The lumbar puncture position fixation device according to claim 1, characterized in that: A sliding groove is provided at the midline of the length direction of the hinge plate, which is slidably engaged with the bottom of the vertical section of the lock bar. Positioning grooves are symmetrically provided on both sides of the middle of the sliding groove. The lock tongue is in a rectangular shape and is placed in the positioning groove. The top of the positioning groove is tightly engaged with the blocking block, and one end of the lock tongue is a rounded end and is horizontally rotatably connected to the blocking block through a pin.

3. The lumbar puncture position fixation device according to claim 2, characterized in that: The rotation radius of the lock tongue is smaller than the length of the positioning groove. A V-shaped spring piece is arranged in the front end of the positioning groove. The spring piece has an obtuse angle and one side thereof is bonded to the inner wall of the positioning groove, and the other side of the spring piece contacts the front side of the lock tongue.

4. The lumbar puncture position fixation device according to claim 3, characterized in that: The rear end of the hinge plate is symmetrically provided with rod holes, which are stepped holes and whose small-diameter holes penetrate into the positioning groove. The outer end of the limit rod is sleeved with a turning handle and the turning handle is threadedly connected to the large-diameter hole of the rod hole. The inner end of the limit rod abuts against the rear side of the lock tongue so that the lock tongue is inserted into the lock groove and then resists the lock bar to move backward; the width of the lock groove is greater than the width of the lock tongue. When the backward-moving limit rod leaves the positioning groove, the lock tongue rotates out of the lock groove under the deformation elastic force of the spring sheet, thereby releasing the resistance restriction on the lock bar.

5. The lumbar puncture position fixation device according to claim 4, characterized in that: The lock tongue is provided with an inclined sliding surface at the right-angled end of the side of the limit rod, and the limit rod is reset by moving forward and contacts the inclined sliding surface to push it to a vertical position with the inner wall of the positioning groove, thereby forming a state of resisting the lock bar; the left and right sides of the top surface of the lock bar are rack structures, and the bottom surface of the rotating table is provided with an open toothed ring near the edge, and the open toothed ring is engaged with the rack structure on one side of the lock bar, and the front and rear ends of the top surface of the lock bar are symmetrically provided with limit blocks.

6. The lumbar puncture position fixation device according to claim 5, characterized in that: The top surface of the support plate is provided with a concentric ring platform, the outer side surface of the ring platform is provided with a ring groove, the bottom surface of the rotating table is provided with a clamping table sleeved with the ring platform, the side wall of the clamping table is symmetrically provided with through grooves, an arc block is inserted in the through groove and the inner end of the arc block is inserted and slidably connected with the ring groove.

7. The lumbar puncture position fixation device according to claim 6, characterized in that: The curved neck group includes a fan-shaped head support plate, a neck cushion rotatably inserted at the front side of the top surface of the head support plate, and a grip column rotatably inserted at the rear side of the top surface of the head support plate; the neck cushion is a straight plate and a curved cushion is glued on one side; a clamping block is provided at the inner arc end of the head support plate, and a plurality of clamping slots are opened at equal intervals at the bottom edge of the rotating table, and the clamping block is T-shaped and is adapted to be clamped with the clamping slots.

8. The lumbar puncture position fixation device according to claim 7, characterized in that: A plurality of fixed neck holes are provided on the top surface of the head support plate and at the front edge, a circular shaft is embedded in the bottom of the neck cushion and the circular shaft is plugged and rotated with the fixed neck hole; a plurality of fixed arm holes are provided on the top surface of the head support plate and at the rear edge, a circular shaft is embedded in the bottom of the grip column and the circular shaft is plugged and rotated with the fixed arm hole.

9. The lumbar puncture position fixation device according to claim 8, characterized in that: The bent leg group includes a fan-shaped leg-resting board, a top knee board rotatably inserted at the rear side of the top surface of the leg-resting board, and a leg-collecting pad rotatably inserted at the front side of the top surface of the leg-resting board; the inner arc end of the leg-resting board is provided with a clamping block engaged with a clamping slot, the top knee board is a rounded-corner folding board and a silicone pad is bonded to its inner side, a limiting column is provided on one side of the inner rounded corner of the top knee board, and the leg-collecting pad is a straight board and a curved soft pad is bonded to one side.

10. The lumbar puncture position fixation device according to claim 9, characterized in that: The top surface of the leg-resting board and the front edge are provided with a plurality of leg-fixing holes, the bottom of the leg-collecting pad is embedded with a cylinder and the cylinder is plugged and rotated with the leg-fixing holes, the top surface of the leg-resting board and the rear edge are provided with a plurality of knee-fixing holes in two rows, the bottom of the top knee board and the limiting column are embedded with a cylinder and the cylinder is plugged and rotated correspondingly with the knee-fixing holes.

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