Clinical measuring and sampling device for neurology department and method thereof

Abstract

The invention relates to the technical field of medical detection, in particular to a clinical measuring and sampling device for the neurology department and a clinical measuring and sampling method for the neurology department. Comprising a shell assembly, a core pulling assembly, a butt joint assembly, a needle traction assembly, an injector traction assembly, a needle assembly and an injector assembly, wherein the core pulling assembly and the butt joint assembly are mounted on the shell assembly; the needle traction assembly is mounted on the core pulling assembly; the injector traction assembly is mounted on the butt joint assembly; the core pulling assembly is used for driving the needle traction assembly and the needle assembly to move, the input end of the butt joint assembly is connected to the output end of the core pulling assembly, and the butt joint assembly is used for driving the injector traction assembly and the injector assembly to move; through the linkage effect of the core pulling assembly and the butt joint assembly, the needle cylinder and the needle sleeve are automatically communicated while the needle core is automatically pulled out, manual needle pulling and needle cylinder butt joint are not needed, and compared with an original operation method, use is simpler and more convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical detection, and particularly relates to a measurement and sampling device and method for clinical use in neurology. Background Art

[0002] In the clinical diagnosis and treatment examination of neurology, the sampling and detection of cerebrospinal fluid are involved. The sampling of cerebrospinal fluid is generally achieved through puncture sampling. The puncture sites include, but are not limited to, lumbar puncture. This is a commonly used diagnostic and therapeutic operation in clinical neurology, and can be used to diagnose various inflammatory diseases, vascular diseases, spinal cord lesions, suspected intracranial space-occupying lesions, neurological diseases with unclear diagnosis, pneumoencephalography, myelography, etc. in the central nervous system; it is also used for fluid drainage (decompression) due to too high cerebrospinal fluid pressure and injection of drugs to treat central nervous system diseases. During the puncture sampling process of cerebrospinal fluid, the patient lies on the bed in a curved lateral position, with both hands holding the knees, making the lumbar vertebrae convex posteriorly and the intervertebral space widened. After routine local disinfection and infiltration anesthesia, puncture, pull out the stylet, and rotate the needle tail, then cerebrospinal fluid can be seen dripping out. Then, according to different purposes and specific situations, take and release cerebrospinal fluid. Then insert the stylet, pull out the puncture needle, fix it with a sterilized gauze block, and lie flat without a pillow for 4 - 6 hours.

[0003] Currently, the puncture needles used during puncture sampling require manual extraction of the stylet, and then a syringe is docked with the needle sleeve to extract cerebrospinal fluid. It requires continuous switching of operations by medical staff with both hands, and the whole process is manual, which is relatively cumbersome (one hand holds the needle sleeve, the other hand pulls out the stylet, puts it down, gets the syringe, docks it, and aspirates the fluid). Moreover, the attention of medical staff is mainly focused on extracting the stylet and docking the syringe during the operation process, and the hand holding the needle sleeve is prone to shaking, causing secondary injury to the tissue at the puncture site.

[0004] Therefore, in view of the above problems, a puncture sampling device that can automatically extract and insert the stylet and synchronously dock the syringe to aspirate fluid can be designed, eliminating a large number of manual operations, enabling medical staff to focus more on stabilizing the needle sleeve, and reducing the operation burden. Summary of the Invention

[0005] In order to overcome the problem that the puncture sampling needle for neurology diagnosis and treatment currently requires manual extraction of the stylet and docking of the syringe to aspirate fluid, which is cumbersome in operation.

[0006] The technical solution of the present invention is as follows: A measurement and sampling device for clinical use in neurology department, comprising a housing assembly, a core extraction assembly, a docking assembly mounted on the housing assembly, a needle traction assembly mounted on the core extraction assembly, a syringe traction assembly mounted on the docking assembly, a needle assembly and a syringe assembly detachably mounted in the housing assembly, and a cover assembly detachably mounted on the housing assembly. The core extraction assembly is used to drive the needle traction assembly and the needle assembly to move. The input end of the docking assembly is connected to the output end of the core extraction assembly, and the docking assembly is used to drive the syringe traction assembly and the syringe assembly to move. When the needle assembly moves to a preset position, the cover assembly is used to send a signal to the core extraction assembly; A positioning assembly is mounted on the housing assembly. When the needle assembly moves to a preset position, the positioning assembly is used to lock the needle assembly with the housing assembly. A liquid extraction assembly is mounted on the needle traction assembly, and an induction unit is mounted in the housing assembly. When the syringe assembly moves to a preset position, the induction unit is used to send a signal to the liquid extraction assembly, and the liquid extraction assembly is used to drive the liquid to flow into the syringe assembly.

[0007] Preferably, the housing assembly includes a connection chamber, a first channel chamber, a second channel chamber and a handle fixedly connected to the connection chamber, a needle sleeve fixedly installed on the connection chamber, and a concave chamber opened on the connection chamber. A first orifice is provided between the first channel chamber and the connection chamber, and a second orifice is provided between the second channel chamber and the connection chamber. The needle sleeve is in communication with the connection chamber. The first channel chamber and the needle sleeve are on the same axis. The needle assembly is arranged in the first channel chamber and can move along the axis of the first channel chamber. The syringe assembly is arranged in the second channel chamber and can move along the axis of the second channel chamber. The handle is of a hollow structure. When the needle assembly moves towards the connection chamber, the syringe assembly moves towards the end away from the connection chamber. When the needle assembly moves towards the end away from the connection chamber, the syringe assembly moves towards the connection chamber. A channel switching assembly is installed on the housing assembly. The channel switching assembly is used to open or close the first orifice and the second orifice. The channel switching assembly includes a third motor installed on the connection chamber, a driving shift bevel gear fixedly connected to the output end of the third motor, a first driven shift bevel gear and a second driven shift bevel gear movably connected to the connection chamber, a first ball head fixedly connected to the first driven shift bevel gear, and a second ball head fixedly connected to the second driven shift bevel gear. Orifices are provided on both the first ball head and the second ball head. The driving shift bevel gear meshes with the first driven shift bevel gear and the second driven shift bevel gear. The third motor is used to drive the driving shift bevel gear to rotate, and the driving shift bevel gear is used to drive the first driven shift bevel gear and the second driven shift bevel gear to rotate. The first driven shift bevel gear is used to drive the orifice on the first ball head to communicate or disconnect from the first orifice, and the second driven shift bevel gear is used to drive the orifice on the second ball head to communicate or disconnect from the second orifice. When the orifice on the first ball head communicates with the first orifice, the orifice on the second ball head disconnects from the second orifice. When the orifice on the first ball head disconnects from the first orifice, the orifice on the second ball head communicates with the second orifice.

[0008] Preferably, the core-pulling assembly includes a first motor mounted on the first channel bin, a first driving gear mounted on the output end of the first motor, a second driving gear mounted on the first driving gear, a plurality of first transmission gears movably connected to the first channel bin, a first chain meshingly connected to the plurality of first transmission gears, and a first linkage gear mounted on one of the first transmission gears. The first motor is used to drive the first driving gear and the second driving gear to rotate. The first driving gear meshes with the first linkage gear. The first driving gear is used to drive the first linkage gear and the corresponding first transmission gear to rotate. The first transmission gear is used to drive the first chain to transmit power. The needle traction assembly includes a first mounting seat fixedly connected to the first chain, a block movably connected to the first mounting seat, a first return spring fixedly connected to the block, a return pin movably connected to the first mounting seat, and a second return spring fixedly connected to the return pin. When the return pin moves downward, the block slides into the first mounting seat. When the return pin moves upward, the block extends out of the first mounting seat.

[0009] Preferably, the docking assembly includes a plurality of second transmission gears movably connected to the second channel bin, a second chain meshingly connected to the plurality of second transmission gears, and a second linkage gear fixedly connected to one of the second transmission gears. The second linkage gear meshes with the first driving gear. The first driving gear is used to drive the second linkage gear and the corresponding second transmission gear to rotate. The second transmission gear is used to drive the second chain to transmit power. The syringe traction assembly includes a second mounting seat fixedly connected to the second chain, a guide rod fixedly connected inside the mounting seat, a slider movably connected to the guide rod, and a fourth return spring mounted on the slider. A chute is provided on one side of the second channel bin. When the slider moves along the guide rod, the slider enters or exits the chute.

[0010] Preferably, the needle assembly includes a needle tail disposed in the first channel bin, a needle core fixedly connected to the needle tail, and a bayonet provided on the needle tail. When the block enters the bayonet, the needle tail is fixed to the first mounting seat. When the needle assembly moves toward the connection bin, the orifice on the first ball head communicates with the first orifice. The needle core can enter the needle sleeve through the first orifice. When one end of the needle core passes through the needle sleeve, the needle tail closes the first orifice. The positioning assembly includes a cylinder mounted on the housing assembly and a positioning pin mounted on the output end of the cylinder. A pin hole is provided on the needle tail. The cylinder is used to drive the positioning pin to enter or exit the pin hole. The syringe assembly includes a syringe barrel disposed in the second channel bin, a piston movably connected in the syringe barrel, and a tail plate fixedly connected to one end of the piston. There is a gap between the tail plate and the syringe barrel. When the slider enters the gap, the syringe barrel is fixed to the second mounting seat. When the syringe assembly moves toward the connection bin, the orifice on the second ball head communicates with the second orifice. The end of the syringe barrel can enter the second orifice.

[0011] Preferably, the cover assembly includes a top cover arranged on the top of the No. 1 channel bin, an adjusting bin fixedly mounted on the top cover, a No. 1 tension sensor fixedly mounted on the top cover, a No. 1 induction spring with one end connected to the No. 1 tension sensor, a knob movably connected to the adjusting bin, a No. 1 adjusting bevel gear fixedly connected to the knob, a No. 2 adjusting bevel gear movably connected in the adjusting bin, a screw threadedly connected in the No. 2 adjusting bevel gear, a bayonet fixedly connected to the screw and a No. 3 reset spring mounted on the bayonet, pin holes are provided on the No. 1 channel bin and the top cover, the No. 1 adjusting bevel gear is meshed with the No. 2 adjusting bevel gear, the knob is used to drive the No. 1 adjusting bevel gear to rotate, and the No. 1 adjusting bevel gear is engaged with the No. 2 adjusting bevel gear. The bevel gear is used to drive the No. 2 adjusting bevel gear to rotate. When the No. 2 adjusting bevel gear rotates, the screw moves along the central axis direction of the No. 2 adjusting bevel gear, and causes the bayonet to enter or disengage from the corresponding pin hole. The pin tail is fixedly connected to the other end of the No. 1 induction spring. The No. 1 tension sensor is used to detect the tension value of the No. 1 induction spring; when the No. 1 tension sensor detects that the tension value of the No. 1 induction spring reaches F1, a signal is sent to the control unit of the No. 1 motor and the control unit of the cylinder, and the locating pin enters the pin eye; when the No. 1 tension sensor detects that the tension value of the No. 1 induction spring reaches F2, a signal is sent to the control unit of the No. 1 motor, and the No. 1 mounting seat is against the top wall of the No. 1 channel bin.

[0012] Preferably, the pumping assembly includes a No. 2 motor mounted on a No. 2 mounting seat, a power gear fixedly mounted on the output end of the No. 2 motor, a power gear sleeve movably connected to the No. 2 mounting seat, a stud threadedly connected in the power gear sleeve, an end seat arranged on the No. 2 mounting seat, a guide column fixedly connected in the end seat, two cantilevers movably connected to the end seat, and a torsion spring mounted on the cantilever, the No. 2 motor is used to drive the power gear to rotate, the power gear is meshed with the power gear sleeve, the power gear is used to drive the power gear sleeve to rotate, when the power gear sleeve rotates, the stud moves along the central axis direction of the power gear sleeve, one end of the stud is fixedly connected to the end seat, the guide column is movably connected in the No. 2 mounting seat, and the slider is located between the two cantilevers; When the slider moves toward the direction of the slide slot, the two cantilevers open and leave the gap between the tail plate and the syringe; when the slider moves in the direction away from the slide slot, the two cantilevers close and enter the gap between the tail plate and the syringe, and when the stud moves up along the central axis of the power gear sleeve, the cantilever pushes the tail plate and the plunger to move, and the liquid flows into the syringe through the communication bin and the No. 2 channel; the sensing unit includes a No. 2 sensing spring and a No. 2 tension sensor installed in the No. 2 channel bin, and the No. 2 tension sensor is used to detect the tension value of the No. 2 sensing spring. When the No. 2 tension sensor detects that the tension value of the No. 2 sensing spring reaches F3, it sends a signal to the control unit of the No. 2 motor, and the power gear sleeve drives the stud to move up along the central axis of the power gear sleeve.

[0013] Preferably, a transmission assembly and a disinfection assembly are installed on the housing assembly. The input end of the transmission assembly is connected to the output end of the core-pulling assembly, and the transmission assembly is used to drive the disinfection assembly to extend or retract into the housing assembly.

[0014] Preferably, the transmission assembly includes a first-stage transmission disk and a second-stage transmission disk movably connected to the first-channel bin, a driving bevel gear fixedly connected to the second-stage transmission disk, several third-stage transmission gears movably connected to the first-channel bin, a third-stage chain meshingly connected to the several third-stage transmission gears, a third-stage linkage bevel gear fixedly connected to one of the third-stage transmission gears, and a third-stage linkage spur gear fixedly connected to another third-stage transmission gear. The first-stage transmission disk meshes with the second driving gear, and the second-stage transmission disk meshes with the first-stage transmission disk. The second driving gear is used to drive the first-stage transmission disk to rotate, and the first-stage transmission disk is used to drive the second-stage transmission disk and the driving bevel gear to rotate. The driving bevel gear meshes with the third-stage linkage bevel gear, and the driving bevel gear is used to drive the third-stage linkage bevel gear and the corresponding third-stage transmission gear to rotate. The third-stage transmission gear is used to drive the third-stage chain to transmit power, and the third-stage chain is used to drive the third-stage linkage spur gear to rotate. The disinfection assembly includes a tray arranged in the concave bin, a push-pull rod fixedly connected to one end of the tray, a rocker arm movably connected to the other end of the push-pull rod, and a swing disk movably connected in the connection bin. The swing disk meshes with the third-stage linkage spur gear, and the third-stage linkage spur gear is used to drive the swing disk to rotate. The swing disk is used to drive the rocker arm to swing reciprocally, and the rocker arm is used to drive the push-pull rod to move along its own axis direction. When the end of the needle core penetrates out of the needle sleeve, the rocker arm drives the push-pull rod to pull the tray back into the concave bin. When the end of the needle core retracts into the needle sleeve, the rocker arm drives the push-pull rod to push the tray out of the concave bin.

[0015] A measurement and sampling method for clinical use in neurology, using a measurement and sampling device for clinical use in neurology as described above, includes the following steps:

[0016] S1: The user first disinfects the needle core and the needle sleeve, then holds the top cover and closes it on the first-channel bin, so that the needle core and the needle tail enter the first-channel bin. At this time, the bayonet and the block are in a relative position, and the first return spring elastically elongates, pushing the block into the bayonet to fix the needle tail to the first mating seat. Rotate the knob by hand, control the second adjusting bevel gear to rotate through the first adjusting bevel gear, so that during the movement of the screw rod, the pin is inserted into the corresponding pin hole to lock the top cover and the first-channel bin. Then, use tweezers to soak the medical cotton ball in the medical alcohol stored in the handle and then fix it on the tray.

[0017] S2: Then, start the first motor in the core-pulling assembly. The first motor drives the first driving gear to rotate, which then drives the first linkage gear, the first transmission gear, and the first chain to produce a transmission effect, driving the first mounting seat and the needle tail fixed by the first mounting seat to move downward. At the same time, the first driving gear also outputs power to the second linkage gear, causing the second transmission gear and the second chain to produce a transmission effect, driving the second mounting seat to move upward along the chute;

[0018] S3: Meanwhile, when the first tension sensor detects that the tension value of the first induction spring reaches F4, it sends a signal to the third motor. The third motor controls the rotation of the active switching bevel gear and simultaneously drives the first driven switching bevel gear and the second driven switching bevel gear to rotate, connecting the orifice on the first ball head with the first orifice channel and disconnecting the orifice on the second ball head from the second orifice channel;

[0019] S4: When the needle core enters the needle sleeve through the first orifice channel until the needle tail blocks and seals the first orifice channel, the first tension sensor detects that the tension value of the first induction spring reaches F1, sends a signal to stop the operation of the first motor, and sends a signal to the cylinder. The cylinder drives the positioning pin to extend into the pin hole to lock the needle tail in the first channel bin. At this time, the second mounting seat moves to the top of the second channel bin;

[0020] S5: Next, the user manually pushes the slider out of the chute, overcoming the elastic force of the fourth return spring, and squeezes the cantilever through the slider, causing the two cantilevers to open against the elastic force of the torsion spring, sending the syringe barrel into the second channel bin, making the gap between the syringe barrel and the tail plate located at the position of the slider. After releasing the slider, the fourth return spring pushes the slider into the gap between the syringe barrel and the tail plate. At the same time, the squeezing force of the slider on the cantilever disappears, and the elastic restoring force of the torsion spring causes the cantilevers to close and enter the gap between the syringe barrel and the tail plate;

[0021] S6: In steps S2 - S4, the second driving gear controls the rotation of the first transmission disk through meshing transmission. The first transmission disk drives the second transmission disk and the active transmission bevel gear to rotate. The active transmission bevel gear transmits power to the third linkage bevel gear. Through the third linkage bevel gear, it controls the third transmission gear and the third chain to produce a transmission effect, driving the third linkage spur gear to rotate continuously. The third linkage spur gear then transmits power to the swing disk. During the rotation of the swing disk, it drives the rocker arm to swing reciprocally, generating a continuous pushing and pulling force on the push rod, controlling the tray to continuously extend or retract from the concave bin. After finding the puncture position, first, the medical cotton ball that extends out of the concave bin is used to smear and disinfect the puncture point. After the needle tail is locked with the first channel bin, the medical cotton ball just retracts into the concave bin;

[0022] S7: Next, the user holds the handle and performs puncture through the needle core and the needle sleeve until it enters the cerebrospinal fluid;

[0023] S8: Then, start the cylinder and the first motor in sequence. The cylinder controls the positioning pin to disengage from the pin hole, releasing the lock between the needle tail and the first channel bin. The first motor outputs power in the reverse direction. According to the steps of S2 - S4 above, while the first fitting seat drives the needle core and the needle tail to move upward along the first channel bin, the second fitting seat drives the syringe barrel to move downward along the second channel bin through the limit of the slider and the syringe barrel. When the first tension sensor detects again that the tension value of the first induction spring reaches F4, at this time, the needle core disengages from the second orifice, sends a signal to the third motor, and controls the rotation of the first ball head and the second ball head through the third motor, so that the orifice on the first ball head is disconnected from the first orifice, and the orifice on the second ball head is communicated with the second orifice, and the cerebrospinal fluid flows into the connection bin along the needle sleeve;

[0024] S9: The needle core and the needle tail continue to move upward along the first channel bin, and the syringe barrel continues to move downward along the second channel bin. When the first fitting seat abuts against the top wall of the first channel bin, the first tension sensor detects that the tension value of the first induction spring reaches F2, and sends a signal to stop the operation of the first motor. Due to the extrusion of the top wall of the first channel bin, the reset pin retracts into the first fitting seat and presses the block, causing the block to disengage from the bayonet. At this time, the needle tail is fixed only by the first induction spring in the contracted state. At the same time, the end of the syringe barrel also enters the second orifice;

[0025] S10: When the syringe barrel is communicated with the second channel, the second tension sensor detects that the tension value of the second induction spring reaches F3, sends a signal to the control unit of the second motor, and the second motor controls the power gear to rotate and drives the power sleeve to rotate, so that the stud moves upward along the central axis of the power sleeve. Through the limit action of the cantilever and the tail plate, the tail plate and the plunger are pushed to move along the central axis of the syringe barrel, and the cerebrospinal fluid is pumped into the syringe barrel from the connection bin.

[0026] Advantages of the present invention:

[0027] 1. The original puncture needle is improved into a double-channel structure, which respectively carries the needle head assembly and the syringe assembly. Through the linkage of the core extraction assembly and the docking assembly, while automatically pulling out the needle core, the syringe barrel is automatically communicated with the needle sleeve, without manual needle pulling and syringe barrel docking. Compared with the original operation method, it is simpler and more convenient to use;

[0028] 2. Through the cooperation of the liquid extraction assembly and the induction unit, while the syringe barrel is communicated with the needle sleeve, liquid extraction is automatically carried out, further reducing the manual operation of the user, reducing the operation difficulty, and shortening the operation interval time;

[0029] 3. The channel switching assembly is used to close the first orifice and open the second orifice in time during the process of pulling out the needle core, avoiding the cerebrospinal fluid from flowing into the first channel bin when the needle core is pulled out, affecting the liquid extraction effect and polluting the interior of the housing assembly;

[0030] 4. The method of automatically locking the needle tail after the needle core is in place through the positioning component is faster in operation compared to the traditional method of screwing and locking the needle core with threads.

[0031] 5. Through the cooperation of the transmission component and the disinfection component, during the process of the needle core being in place, the tray carrying the medical cotton ball is synchronously controlled to extend and retract in the concave bin, and the user can complete puncture and skin disinfection at the puncture point with one hand operation of the device.

[0032] 6. Through the reasonable design of the transmission efficiency of the transmission component, when the tray carrying the medical cotton ball extends out of the concave bin, the end of the needle core will not protrude from the needle sleeve, avoiding accidental puncture of the skin by the needle core when disinfecting close to the patient's skin. Description of the Drawings

[0033] Figure 1 Shown is a three-dimensional structural schematic diagram of the measurement and sampling device for clinical use in neurology of the present invention;

[0034] Figure 2 Shown is a front sectional structural schematic diagram of the measurement and sampling device for clinical use in neurology of the present invention;

[0035] Figure 3 Shown is a side sectional structural schematic diagram of the measurement and sampling device for clinical use in neurology of the present invention;

[0036] Figure 4 Shown is another sectional structural schematic diagram of the measurement and sampling device for clinical use in neurology of the present invention;

[0037] Figure 5 Shown is a structural schematic diagram of the core extraction component and the needle head component of the measurement and sampling device for clinical use in neurology of the present invention;

[0038] Figure 6 Shown is the measurement and sampling device for clinical use in neurology of the present invention Figure 2 in the enlarged structural schematic diagram at A;

[0039] Figure 7 Shown is a structural schematic diagram of the docking component and the syringe component of the measurement and sampling device for clinical use in neurology of the present invention;

[0040] Figure 8 Shown is a structural schematic diagram of the syringe traction component and the liquid extraction component of the measurement and sampling device for clinical use in neurology of the present invention;

[0041] Figure 9 Shown is the measurement and sampling device for clinical use in neurology of the present invention Figure 2 in the enlarged structural schematic diagram at C;

[0042] Figure 10The figure shows a schematic structural diagram of the channel switching component of the measurement and sampling device for clinical use in neurology of the present invention;

[0043] Figure 11 The figure shows the measurement and sampling device for clinical use in neurology of the present invention Figure 2 and the enlarged schematic structural diagram at position D therein;

[0044] Figure 12 The figure shows a schematic structural diagram of the cover component of the measurement and sampling device for clinical use in neurology of the present invention;

[0045] Figure 13 The figure shows the measurement and sampling device for clinical use in neurology of the present invention Figure 3 and the enlarged schematic structural diagram at position B therein;

[0046] Figure 14 The figure shows a schematic structural diagram of the transmission component and the disinfection component of the measurement and sampling device for clinical use in neurology of the present invention;

[0047] Figure 15 The figure shows the measurement and sampling device for clinical use in neurology of the present invention Figure 4 and the enlarged schematic structural diagram at position E therein.

[0048] Description of reference numerals: 101, connection bin; 102, first channel bin; 103, second channel bin; 104, handle; 105, needle sleeve; 106, concave bin; 201, needle tail; 202, needle core; 203, bayonet; 301, syringe barrel; 302, piston; 303, tail plate; 401, first motor; 402, first driving gear; 403, second driving gear; 404, first-stage transmission gear; 405, first-stage chain; 406, first-stage linkage gear; 501, first mounting seat; 502, clamping block; 503, first return spring; 504, return pin; 505, second return spring; 601, top cover; 602, adjustment bin; 603, first tension sensor; 604, first induction spring; 701, knob; 702, first adjustment bevel gear; 703, second adjustment bevel gear; 704, screw rod; 705, clamping pin; 706, third return spring; 801, cylinder; 802, positioning pin; 901, second-stage transmission gear; 902, second-stage chain; 903, second-stage linkage gear; 1001, second mounting seat; 1002, guide rod; 1003, slider; 1004, fourth return spring; 1101, second motor; 1102, driving gear; 1103, driving gear sleeve; 1104, stud; 1105, end seat; 1106, guide post; 1107, cantilever; 1108, torsion spring; 1201, second induction spring; 1202, second tension sensor; 1301, third motor; 1302, active conversion bevel gear; 1303, first driven conversion bevel gear; 1304, first ball head; 1305, second driven conversion bevel gear; 1306, second ball head; 1401, first-stage transmission disc; 1402, second-stage transmission disc; 1403, active transmission bevel gear; 1404, third-stage transmission gear; 1405, third-stage chain; 1406, third-stage linkage bevel gear; 1407, third-stage linkage spur gear; 1501, swing disc; 1502, rocker arm; 1503, push-pull rod; 1504, tray. Detailed implementation manners

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0050] Please refer to Figures 1 - 15, the present invention provides an embodiment: a measurement and sampling device for clinical use in neurology, comprising a housing assembly, a core extraction assembly, a docking assembly mounted on the housing assembly, a needle traction assembly mounted on the core extraction assembly, a syringe traction assembly mounted on the docking assembly, a needle assembly and a syringe assembly detachably mounted in the housing assembly, and a cover assembly detachably mounted on the housing assembly. The core extraction assembly is used to drive the needle traction assembly and the needle assembly to move. The input end of the docking assembly is connected to the output end of the core extraction assembly, and the docking assembly is used to drive the syringe traction assembly and the syringe assembly to move. When the needle assembly moves to a preset position, the cover assembly is used to send a signal to the core extraction assembly. A positioning assembly is mounted on the housing assembly. When the needle assembly moves to a preset position, the positioning assembly is used to lock the needle assembly with the housing assembly. A liquid extraction assembly is mounted on the needle traction assembly, and an induction unit is mounted in the housing assembly. When the syringe assembly moves to a preset position, the induction unit is used to send a signal to the liquid extraction assembly, and the liquid extraction assembly is used to drive the liquid to flow into the syringe assembly. After the user installs the needle assembly into the housing assembly, the needle assembly and the needle traction assembly form a limit lock, and then the cover assembly is fixed to the housing assembly. The core extraction assembly is started, and by driving the needle traction assembly to move, the needle assembly is positioned (in a position where puncture operation can be performed), and after positioning, a signal is sent to the positioning assembly through the cover assembly to lock the needle assembly with the housing assembly to prevent the needle assembly from retracting due to reverse resistance during puncture. Then the syringe assembly is installed into the housing assembly, and a limit lock is formed between the syringe traction assembly and the syringe assembly. After the puncture operation, the positioning assembly is started again to unlock the needle assembly from the housing assembly. Then the core extraction assembly is started. While controlling the needle assembly to retract, the core extraction assembly transmits power to the docking assembly, and the docking assembly drives the syringe traction assembly to move, so that the syringe assembly is positioned (in a position where liquid can be extracted). After the syringe assembly is positioned, the induction unit sends a signal to the liquid extraction assembly, and the liquid extraction assembly operates to extract cerebrospinal fluid into the syringe assembly.

[0051] Please refer to Figures 1 - 4 and Figures 10 - 11, in this embodiment, the housing assembly includes a connection chamber 101, a first channel chamber 102 fixedly connected to the connection chamber 101, a second channel chamber 103 and a handle 104, a needle sleeve 105 fixedly installed on the connection chamber 101, and a concave chamber 106 opened on the connection chamber 101. A first hole is provided between the first channel chamber 102 and the connection chamber 101, and a second hole is provided between the second channel chamber 103 and the connection chamber 101. The needle sleeve 105 is in communication with the connection chamber 101. The first channel chamber 102 and the needle sleeve 105 are on the same axis. The needle assembly is arranged in the first channel chamber 102 and can move along the axis of the first channel chamber 102. The syringe assembly is arranged in the second channel chamber 103 and can move along the axis of the second channel chamber 103. The handle 104 is a hollow structure (with a rubber stopper at the top, and the handle 104 can be used to store medical alcohol); when the needle assembly moves towards the connection chamber 101, the syringe assembly moves towards the end away from the connection chamber 101; when the needle assembly moves towards the end away from the connection chamber 101, the syringe assembly moves towards the connection chamber 101; a channel switching assembly is installed on the housing assembly, and the channel switching assembly is used to open or close the first hole and the second hole. The channel switching assembly includes a third motor 1301 installed on the connection chamber 101, a driving bevel gear 1302 fixedly connected to the output end of the third motor 1301, a first driven bevel gear 1303 and a second driven bevel gear 1305 movably connected to the connection chamber 101, a first ball head 1304 fixedly connected to the first driven bevel gear 1303, and a second ball head 1306 fixedly connected to the second driven bevel gear 1305. Orifices are provided on both the first ball head 1304 and the second ball head 1306. The driving bevel gear 1302 meshes with the first driven bevel gear 1303 and the second driven bevel gear 1305. The third motor 1301 is used to drive the driving bevel gear 1302 to rotate, and the driving bevel gear 1302 is used to drive the first driven bevel gear 1303 and the second driven bevel gear 1305 to rotate; the first driven bevel gear 1303 is used to drive the orifice on the first ball head 1304 to communicate with or disconnect from the first hole, and the second driven bevel gear 1305 is used to drive the orifice on the second ball head 1306 to communicate with or disconnect from the second hole. When the orifice on the first ball head 1304 communicates with the first hole, the orifice on the second ball head 1306 disconnects from the second hole;When the orifice on the first ball head 1304 is disconnected from the first orifice channel, the orifice on the second ball head 1306 is in communication with the second orifice channel. (When the needle assembly is withdrawn, if the first orifice channel is not sealed, cerebrospinal fluid will flow into the connection chamber 101 through the needle sleeve 105 and finally enter the first channel chamber 102 through the first orifice channel. At this time, both the first orifice channel and the second orifice channel are open, and the flow direction of cerebrospinal fluid is random, which will affect the fluid extraction and contaminate the interior of the first channel chamber 102.) During the process of the core extraction assembly withdrawing the needle assembly, once the needle assembly moves to a preset value (detaching from the first orifice channel), the cover assembly sends a signal to the third motor 1301, and the third motor 1301 starts. Through the meshing transmission among the driving shift cone gear 1302, the first driven shift cone gear 1303, and the second driven shift cone gear 1305, the first ball head 1304 and the second ball head 1306 rotate simultaneously, causing the orifice on the first ball head 1304 to be disconnected from the first orifice channel (the path for cerebrospinal fluid to enter the first channel chamber 102 through the first orifice channel is closed), and the orifice on the second ball head 1306 to be in communication with the second orifice channel (the path for cerebrospinal fluid to enter the syringe assembly through the second orifice channel is opened). During the process of the puncture needle being in place, once the needle assembly moves to a preset value (below this threshold, the needle assembly does not enter the first orifice channel), the first ball head 1304 and the second ball head 1306 rotate again, causing the orifice on the first ball head 1304 to be opened to the first orifice channel (the puncture needle can pass through this orifice and the first orifice channel until it enters the needle sleeve 105), and the orifice on the second ball head 1306 to be disconnected from the second orifice channel (the path for cerebrospinal fluid to enter the second channel chamber 103 through the second orifice channel is closed).;

[0052] Please refer to Figures 1 - 6, in this embodiment, the core-pulling assembly includes a first motor 401 installed on the first channel bin 102, a first driving gear 402 installed on the output end of the first motor 401, a second driving gear 403 installed on the first driving gear 402, a number of first transmission gears 404 movably connected to the first channel bin 102, a first chain 405 meshingly connected to the number of first transmission gears 404, and a first linkage gear 406 installed on one of the first transmission gears 404. The first motor 401 is used to drive the first driving gear 402 and the second driving gear 403 to rotate. The first driving gear 402 meshes with the first linkage gear 406. The first driving gear 402 is used to drive the first linkage gear 406 and the corresponding first transmission gear 404 to rotate. The first transmission gear 404 is used to drive the first chain 405 to transmit power; the needle pulling assembly includes a first fitting seat 501 fixedly connected to the first chain 405, a clamping block 502 movably connected to the first fitting seat 501, a first return spring 503 fixedly connected to the clamping block 502, a return pin 504 movably connected to the first fitting seat 501, and a second return spring 505 fixedly connected to the return pin 504. When the return pin 504 moves downward, the clamping block 502 slides into the first fitting seat 501. When the return pin 504 moves upward, the clamping block 502 extends out of the first fitting seat 501. A control switch can be set on the handle 104. After starting the first motor 401, the first motor 401 outputs power to the first driving gear 402 and the second driving gear 403. Through the meshing transmission of the first driving gear 402 and the first linkage gear 406, it drives the tooth chain transmission structure formed by the first transmission gear 404 and the first chain 405 to continuously operate, controlling the first fitting seat 501 fixed on the first chain 405 to move along the axis direction of the first channel bin 102. When the first fitting seat 501 moves to the top position of the first channel bin 102, the return pin 504 is squeezed by the top wall of the first channel bin 102, retracts into the first fitting seat 501 against the elastic force of the second return spring 505, and acts on the ramp-shaped clamping block 502, causing the clamping block 502 to retract into the first fitting seat 501 against the elastic force of the first return spring 503 (when the first fitting seat 501 leaves the top position of the first channel bin 102, the return pin 504 is not squeezed, the second return spring 505 pushes the return pin 504 out again, and at the same time, the first return spring 503 also pushes the clamping block 502 out synchronously). In the state where the clamping block 502 is pushed out, the first fitting seat 501 is locked with the needle assembly. Therefore, the tooth chain transmission structure formed by the first transmission gear 404 and the first chain 405 can drive the needle assembly to move.

[0053] Please refer to Figures 1 - 4 and Figures 7 - 9, in this embodiment, the docking assembly includes a number of secondary transmission gears 901 movably connected to the second channel bin 103, a secondary chain 902 meshingly connected to the number of secondary transmission gears 901, and a secondary linkage gear 903 fixedly connected to one of the secondary transmission gears 901. The secondary linkage gear 903 meshes with the first driving gear 402. The first driving gear 402 is used to drive the secondary linkage gear 903 and the corresponding secondary transmission gears 901 to rotate, and the secondary transmission gears 901 are used to drive the secondary chain 902 to transmit; the syringe traction assembly includes a second fitting seat 1001 fixedly connected to the secondary chain 902, a guide rod 1002 fixedly connected inside the fitting seat, a slider 1003 movably connected to the guide rod 1002, and a fourth return spring 1004 installed on the slider 1003. A chute is provided on one side of the second channel bin 103. When the slider 1003 moves along the guide rod 1002, the slider 1003 enters or exits the chute. After starting the first motor 401, the first motor 401 outputs power to the first driving gear 402 and the second driving gear 403. Through the meshing transmission of the first driving gear 402 and the secondary linkage gear 903, the toothed chain transmission structure formed by the secondary transmission gears 901 and the secondary chain 902 is driven to continuously operate, controlling the second fitting seat 1001 fixed on the secondary chain 902 to move along the axis of the second channel bin 103. When installing the syringe assembly, first push the slider 1003 along the guide rod 1002 to make it exit the chute, leaving space to enter the second channel bin 103. After the syringe assembly reaches the installation point, release the slider 1003. Under the elastic action of the fourth return spring 1004, the slider 1003 resets and forms a limit with the syringe assembly. Therefore, the toothed chain transmission structure formed by the secondary transmission gears 901 and the secondary chain 902 can drive the syringe assembly to move.

[0054] Please refer to Figures 1 - 11, in this embodiment, the needle assembly includes a needle tail 201 disposed in the first channel bin 102, a needle core 202 fixedly connected to the needle tail 201, and a bayonet 203 formed on the needle tail 201. When the latch block 502 enters the bayonet 203, the needle tail 201 is fixed to the first mating seat 501. When the needle assembly moves toward the connection bin 101, the orifice on the first ball head 1304 communicates with the first channel, and the needle core 202 can enter the needle sleeve 105 through the first channel. When one end of the needle core 202 penetrates out of the needle sleeve 105, the needle tail 201 closes the first channel; the positioning assembly includes a cylinder 801 mounted on the housing assembly and a positioning pin 802 mounted on the output end of the cylinder 801. A pin hole is formed on the needle tail 201, and the cylinder 801 is used to drive the positioning pin 802 to enter or withdraw from the pin hole; the syringe assembly includes a syringe barrel 301 disposed in the second channel bin 103, a piston 302 movably connected in the syringe barrel 301, and a tail plate 303 fixedly connected to one end of the piston 302. There is a gap between the tail plate 303 and the syringe barrel 301. When the slider 1003 enters the gap, the syringe barrel 301 is fixed to the second mating seat 1001. When the syringe assembly moves toward the connection bin 101, the orifice on the second ball head 1306 communicates with the second channel, and the end of the syringe barrel 301 can enter the second channel. When the needle assembly is installed in the first channel bin 102, according to the above-mentioned ejection method of the latch block 502, the latch block 502 is snapped into the bayonet 203 to fix the needle tail 201 on the first mating seat 501. Before the needle tail 201 and the needle core 202 are moved into place, the orifice of the first ball head 1304 first communicates with the first channel, and then the needle core 202 gradually enters the first channel through the orifice until it is completely immersed in the needle sleeve 105. When the needle core 202 is completely in place, the needle tail 201 just seals the end of the first channel. At this time, the cylinder 801 is automatically started to control the positioning pin 802 to insert into the corresponding pin hole to fix the needle tail 201 to the first channel bin 102, preventing the needle core 202 from retracting from the needle sleeve 105 during puncture. According to the above-mentioned installation method of the syringe assembly, after the syringe barrel 301 reaches the installation point, the slider 1003 will be pushed into the gap between the tail plate 303 and the syringe barrel 301 by the fourth return spring 1004, keeping the syringe barrel 301 fixed to the second mating seat 1001, and the syringe barrel 301 is pushed and pulled to move along the second channel bin 103 by the movement of the slider 1003.

[0055] Please refer to Figures 1 - 4 and Figures 10 - 13, in this embodiment, the cover assembly includes a top cover 601 provided at the top end of the first channel bin 102, an adjustment bin 602 fixedly installed on the top cover 601, a first tension sensor 603 fixedly installed on the top cover 601, a first induction spring 604 with one end connected to the first tension sensor 603, a knob 701 movably connected to the adjustment bin 602, a first adjustment bevel gear 702 fixedly connected to the knob 701, a second adjustment bevel gear 703 movably connected inside the adjustment bin 602, a screw rod 704 threadedly connected inside the second adjustment bevel gear 703, a pin 705 fixedly connected to the screw rod 704, and a third return spring 706 installed on the pin 705. Pin holes are provided on both the first channel bin 102 and the top cover 601. The first adjustment bevel gear 702 meshes with the second adjustment bevel gear 703. The knob 701 is used to drive the rotation of the first adjustment bevel gear 702, and the first adjustment bevel gear 702 is used to drive the rotation of the second adjustment bevel gear 703. When the second adjustment bevel gear 703 rotates, the screw rod 704 moves along the central axis direction of the second adjustment bevel gear 703, and the pin 705 enters or exits the corresponding pin hole. The needle tail 201 is fixedly connected to the other end of the first induction spring 604. The first tension sensor 603 is used to detect the tension value of the first induction spring 604. When the first tension sensor 603 detects that the tension value of the first induction spring 604 reaches F1, it sends a signal to the control units of the first motor 401 and the cylinder 801, and the positioning pin 802 enters the pin hole;When the first tension sensor 603 detects that the tension value of the first induction spring 604 reaches F2, it sends a signal to the control unit of the first motor 401. The first fitting seat 501 abuts against the top wall of the first channel bin 102. After aligning the needle assembly and installing it into the first channel bin 102, the top cover 601 is buckled on the top of the first channel bin 102. At this time, rotate the knob 701. Through the meshing transmission of the first adjusting bevel gear 702 and the second adjusting bevel gear 703, control the movement of the screw rod 704, insert the pin 705 into the corresponding pin hole, and lock the top cover 601 and the first channel bin 102. When disassembling, rotate the knob 701 in the reverse direction, and the pin 705 can overcome the elastic force of the third return spring 706 and disengage from the pin hole (this detachable top cover 601 structure enables the needle assembly to be completely removed from the first channel bin 102, facilitating cleaning and replacement. In actual use, a hook or other structure can also be used to connect between the first signal spring and the needle tail 201 for easy detachment). During the movement of the needle tail 201, the first signal spring undergoes the processes of being stretched and compressed, and accordingly, the tension value changes. During the process of the needle assembly being in place, the first tension sensor 603 first detects the pre-threshold value F1 and sends a signal, causing the first motor 401 to stop running while the cylinder 801 controls the positioning pin 802 to lock the needle tail 201. When the needle assembly withdraws from the needle sleeve 105 and the needle tail 201 returns to the top of the first channel bin 102, the first tension sensor 603 first detects the threshold value F2 and sends a signal, causing the first motor 401 to stop running (during the process of the needle assembly being in place and being withdrawn, the first tension sensor 603 also detects the threshold value F4 for sending a signal to control the third motor 1301).;

[0056] Please refer to Figures 1 - 4 and Figures 7 - 11In this embodiment, the pumping assembly includes a No. 2 motor 1101 mounted on a No. 2 mounting seat 1001, a power gear 1102 fixedly mounted on the output end of the No. 2 motor 1101, a power gear sleeve 1103 movably connected to the No. 2 mounting seat 1001, a stud 1104 threadedly connected to the power gear sleeve 1103, an end seat 1105 arranged on the No. 2 mounting seat 1001, a guide column 1106 fixedly connected to the end seat 1105, two cantilevers 1107 movably connected to the end seat 1105 and a torsion spring 1108 mounted on the cantilever 1107, the No. 2 motor 1101 is used to drive the power gear 1102 to rotate, the power gear 1102 is meshed with the power gear sleeve 1103, the power gear 1102 is used to drive the power gear sleeve 1103 to rotate, when the power When the gear sleeve 1103 rotates, the stud 1104 moves along the central axis direction of the power gear sleeve 1103, one end of the stud 1104 is fixedly connected to the end seat 1105, the guide column 1106 is movably connected in the No. 2 mounting seat 1001, and the slider 1003 is between the two cantilevers 1107; when the slider 1003 moves toward the direction of the slide slot, the two cantilevers 1107 open and disengage from the gap between the tail plate 303 and the syringe 301; when the slider 1003 moves in the direction away from the slide slot, the two cantilevers 1107 close and enter the gap between the tail plate 303 and the syringe 301, when the stud 1104 moves up along the central axis direction of the power gear sleeve 1103, the cantilever 1107 pushes the tail plate 303 and the plunger to move, and the liquid flows into the syringe 301 through the communication chamber 101 and the No. 2 channel;The induction unit includes a second induction spring 1201 and a second tension sensor 1202 installed in the second channel bin 103. The second tension sensor 1202 is used to detect the tension value of the second induction spring 1201. When the second tension sensor 1202 detects that the tension value of the second induction spring 1201 reaches F3, it sends a signal to the control unit of the second motor 1101. The power gear sleeve 1103 drives the stud 1104 to move upward along the central axis direction of the power gear sleeve 1103. During the process of the needle head assembly being withdrawn, the second fitting seat 1001 synchronously drives the syringe barrel 301 into position (the syringe barrel 301 is docked with the second hole. Prior to this, the second hole and the orifice of the second ball head 1306 have been connected). At this time, the second tension sensor 1202 detects that the tension value of the second induction spring 1201 reaches F3 and sends a signal to the control unit of the second motor 1101. The second motor 1101 starts. Through the meshing transmission of the power gear 1102 and the power gear sleeve 1103 (cooperating with the guiding function of the guiding column 1106 in the second fitting seat 1001), the stud 1104 moves, and the top end seat 1105 and the cantilever 1107 move away from the syringe barrel 301. The cantilever 1107 exerts a force on the tail plate 303, driving the tail plate 303 and the plunger to move relative to the syringe barrel 301, creating a negative pressure in the syringe barrel 301, and pumping the cerebrospinal fluid entering the connection bin 101 into the syringe barrel 301 through the second hole (according to the installation method of the syringe barrel 301 described above, in this embodiment, when the slider 1003 is pushed, the slider 1003 will press the cantilever 1107, causing the cantilever 1107 to overcome the elastic force of the torsion spring 1108 and open. The top of the second channel bin 103 is open. After the syringe barrel 301 is placed, when the slider 1003 is released, during the reset process of the slider 1003, the cantilever 1107 also closes and resets due to the elastic recovery of the torsion spring 1108 and also enters the gap between the tail plate 303 and the syringe barrel 301).;

[0057] Please refer to Figures 1 - 4 and Figures 14 - 15, in this embodiment, a transmission component and a disinfection component are installed on the housing assembly. The input end of the transmission component is connected to the output end of the core-pulling component. The transmission component is used to drive the disinfection component to extend or retract into the housing assembly. The transmission component includes a first-stage transmission disk 1401 and a second-stage transmission disk 1402 movably connected to the first-channel bin 102, a driving transmission bevel gear 1403 fixedly connected to the second-stage transmission disk 1402, several third-stage transmission gears 1404 movably connected to the first-channel bin 102, a third-stage chain 1405 meshingly connected to the several third-stage transmission gears 1404, a third-stage linkage bevel gear 1406 fixedly connected to one of the third-stage transmission gears 1404, and a third-stage linkage spur gear 1407 fixedly connected to another third-stage transmission gear 1404. The first-stage transmission disk 1401 meshes with the second driving gear 403. The second-stage transmission disk 1402 meshes with the first-stage transmission disk 1401. The second driving gear 403 is used to drive the first-stage transmission disk 1401 to rotate. The first-stage transmission disk 1401 is used to drive the second-stage transmission disk 1402 and the driving transmission bevel gear 1403 to rotate. The driving transmission bevel gear 1403 meshes with the third-stage linkage bevel gear 1406. The driving transmission bevel gear 1403 is used to drive the third-stage linkage bevel gear 1406 and the corresponding third-stage transmission gear 1404 to rotate. The third-stage transmission gear 1404 is used to drive the third-stage chain 1405 to transmit. The third-stage chain 1405 is used to drive the third-stage linkage spur gear 1407 to rotate; the disinfection component includes a tray 1504 arranged in the concave bin 106, a push-pull rod 1503 fixedly connected to one end of the tray 1504, a rocker arm 1502 movably connected to the other end of the push-pull rod 1503, and a swing disk 1501 movably connected in the connection bin 101. The swing disk 1501 meshes with the third-stage linkage spur gear 1407. The third-stage linkage spur gear 1407 is used to drive the swing disk 1501 to rotate. The swing disk 1501 is used to drive the rocker arm 1502 to swing reciprocally. The rocker arm 1502 is used to drive the push-pull rod 1503 to move along its own axis direction; when the end of the needle core 202 penetrates out of the needle sleeve 105, the rocker arm 1502 drives the push-pull rod 1503 to pull the tray 1504 back into the concave bin 106;When the end of the needle core 202 retracts into the needle sleeve 105, the rocker arm 1502 drives the push-pull rod 1503 to push the tray 1504 out of the recess 106. (In traditional puncture methods, the skin at the puncture point needs to be disinfected first.) During the operation of the first motor 401, power is synchronously output to the transmission assembly through the second driving gear 403, causing the first-stage transmission disc 1401 meshing with the second driving gear 403 to rotate. Similarly, under the meshing transmission of the second-stage transmission disc 1402, the driving bevel gear 1403, and the third-stage linkage bevel gear 1406, the tooth chain transmission structure formed by the third-stage transmission gear 1404 and the third-stage chain 1405 continuously operates and drives the third-stage linkage spur gear 1407 to rotate. The third-stage linkage spur gear 1407 then outputs power to the swing disc 1501 in the disinfection assembly. While rotating, the swing disc 1501 drives the rocker arm 1502 to swing reciprocally and generates a continuous pushing and pulling force on the push-pull rod 1503, causing the tray 1504 to continuously enter and exit the recess 106. In the state of protruding from the recess 106, the operation of the first motor 401 can be stopped at any time. By holding the handle 104, the skin at the puncture point can be smeared and disinfected with the medical cotton ball on the tray 1504 (dipping in alcohol before disinfection). It is also possible not to stop the operation of the first motor 401, and the skin at the puncture point can be disinfected in a continuous pressing manner by pushing and pulling the tray 1504. (It should be noted that after the needle assembly is completely in place, the tray 1504 is in the state of retracting into the recess 106. This design is to prevent the needle core 202 from accidentally puncturing the skin during disinfection when the needle core 202 is exposed outside the needle sleeve 105.).;

[0058] Please refer to Figures 1 - 15 , in this embodiment, the present invention provides a measurement and sampling method for clinical neurology, using a measurement and sampling device for clinical neurology as described above, including the following steps:

[0059] S1: The user first disinfects the needle core 202 and the needle sleeve 105 (pre - disinfection, which can be carried out by conventional methods such as alcohol, hot steam, etc.). Then, hold the top cover 601 by hand and cover it on the first - channel bin 102, so that the needle core 202 and the needle tail 201 enter the first - channel bin 102. At this time, the bayonet 203 and the latch 502 are in a relative position, and the first return spring 503 elastically elongates, pushing the latch 502 into the bayonet 203 to fix the needle tail 201 to the first - fitting seat 501. Rotate the knob 701 by hand, and control the rotation of the second - adjusting bevel gear 703 through the first - adjusting bevel gear 702. When the screw rod 704 moves, insert the pin 705 into the corresponding pin hole to lock the top cover 601 and the first - channel bin 102. Then, use tweezers to soak the medical cotton ball in the medical alcohol stored in the handle 104 and then fix it on the tray 1504 (in actual use, a pipeline communicating with the concave bin 106 can be set at the bottom of the cavity of the handle 104, and an electric valve is set on the pipeline, so that the medical alcohol in the handle 104 can flow into the concave bin 106 to moisten the medical cotton ball).

[0060] S2: Then, start the first motor 401 in the core - pulling assembly. The first motor 401 drives the first driving gear 402 to rotate, and then drives the first linkage gear 406, the first transmission gear 404 and the first chain 405 to produce a transmission effect, driving the first - fitting seat 501 and the needle tail 201 fixed by the first - fitting seat 501 (the insertion and engagement of the latch 502 and the bayonet 203 form a fixation) to move downward. At the same time, the first driving gear 402 also outputs power to the second linkage gear 903, making the second transmission gear 901 and the second chain 902 produce a transmission effect, driving the second - fitting seat 1001 to move upward along the chute;

[0061] S3: At the same time, when the first tension sensor 603 detects that the tension value of the first induction spring 604 reaches F4 (under this threshold value, the needle core 202 does not enter the first hole), it sends a signal to the third motor 1301. The third motor 1301 controls the rotation of the active conversion bevel gear 1302, and at the same time drives the first driven conversion bevel gear 1303 and the second driven conversion bevel gear 1305 to rotate, connecting the orifice on the first ball head 1304 with the first hole, and disconnecting the orifice on the second ball head 1306 from the second hole;

[0062] S4: When the needle core 202 passes through the first hole and enters the needle sleeve 105, until the needle tail 201 blocks and seals the first hole, the first tension sensor 603 detects that the tension value of the first induction spring 604 reaches F1, sends a signal to stop the operation of the first motor 401, and sends a signal to the cylinder 801. The cylinder 801 drives the positioning pin 802 to extend into the pin hole to lock the needle tail 201 in the first - channel bin 102. At this time, the second - fitting seat 1001 moves to the top of the second - channel bin 103;

[0063] S5: Next, the user pushes the slider 1003 out of the chute by hand, overcoming the elastic force of the fourth return spring 1004, and squeezes the cantilever 1107 through the slider 1003, causing the two cantilevers 1107 to open against the elastic force of the torsion spring 1108, sending the syringe barrel 301 into the second channel bin 103, making the gap between the syringe barrel 301 and the tail plate 303 at the position of the slider 1003. After releasing the slider 1003, the fourth return spring 1004 pushes the slider 1003 into the gap between the syringe barrel 301 and the tail plate 303. At the same time, the squeezing force of the slider 1003 on the cantilever 1107 disappears, and the elastic restoring force of the torsion spring 1108 causes the cantilever 1107 to close and enter the gap between the syringe barrel 301 and the tail plate 303 (in the natural state of the torsion spring 1108, the slider 1003 in the reset state just fits with the two cantilevers 1107);

[0064] S6: In the steps of S2 - S4, the second driving gear 403 controls the rotation of the first transmission disk 1401 through meshing drive. The first transmission disk 1401 drives the second transmission disk 1402 and the driving transmission bevel gear 1403 to rotate. The driving transmission bevel gear 1403 transmits the power to the third - stage linkage bevel gear 1406. Through the third - stage linkage bevel gear 1406, it controls the third - stage transmission gear 1404 and the third - stage chain 1405 to produce a transmission effect, driving the third - stage linkage spur gear 1407 to rotate continuously. The third - stage linkage spur gear 1407 then transmits the power to the swing disk 1501. During the rotation of the swing disk 1501, it drives the rocker arm 1502 to swing reciprocally, generating a continuous pushing and pulling force on the push - pull rod 1503, controlling the tray 1504 to continuously extend or retract from the recess 106. After finding the puncture position, first, the puncture point is disinfected by the medical cotton ball extending out of the recess 106. After the needle tail 201 is locked with the first channel bin 102, the medical cotton ball just retracts into the recess 106;

[0065] S7: Next, the user holds the handle 104 and performs puncture through the needle core 202 and the needle sleeve 105 until reaching the cerebrospinal fluid;

[0066] S8: Then, start the cylinder 801 and the first motor 401 in sequence. The cylinder 801 controls the positioning pin 802 to disengage from the pin hole, releasing the lock between the needle tail 201 and the first channel bin 102. The first motor 401 outputs power in the reverse direction. According to the steps of S2 - S4 above, while the first assembly seat 501 drives the needle core 202 and the needle tail 201 to move upward along the first channel bin 102, the second assembly seat 1001 drives the syringe barrel 301 to move downward along the second channel bin 103 through the limit of the slider 1003 and the syringe barrel 301. When the first tension sensor 603 detects again that the tension value of the first induction spring 604 reaches F4 (it can be the same as the threshold F4 or another threshold can be set. At this threshold, the needle core 202 disengages from the first hole), at this time, the needle core 202 disengages from the second hole, sends a signal to the third motor 1301, and controls the rotation of the first ball head 1304 and the second ball head 1306 through the third motor 1301, so that the orifice on the first ball head 1304 is disconnected from the first hole, and the orifice on the second ball head 1306 is connected to the second hole, and the cerebrospinal fluid flows into the connection chamber 101 along the needle sleeve 105;

[0067] S9: The needle core 202 and the needle tail 201 continue to move upward along the first channel bin 102, and the syringe barrel 301 continues to move downward along the second channel bin 103. When the first assembly seat 501 abuts against the top wall of the first channel bin 102, the first tension sensor 603 detects that the tension value of the first induction spring 604 reaches F2, and sends a signal to the first motor 401 to stop running. Due to the extrusion effect of the top wall of the first channel bin 102, the reset pin 504 retracts into the first assembly seat 501 and presses the clamping block 502, causing the clamping block 502 to disengage from the bayonet 203. At this time, the needle tail 201 is fixed only by the first induction spring 604 in the contracted state (the first signal spring is fixedly connected to the needle tail 201, and the first signal spring contracts in the natural state, and the distance between the needle tail 201 and the top cover 601 is relatively stable). At the same time, the end of the syringe barrel 301 also enters the second hole;

[0068] S10: When the syringe barrel 301 is connected to the second channel, the second tension sensor 1202 detects that the tension value of the second induction spring 1201 reaches F3, and sends a signal to the control unit of the second motor 1101. The second motor 1101 controls the power gear 1102 to rotate and drives the power gear sleeve 1103 to rotate, so that the stud 1104 moves upward along the central axis direction of the power gear sleeve 1103. Through the limiting effect of the cantilever 1107 and the tail plate 303, the tail plate 303 and the plunger are pushed to move along the central axis of the syringe barrel 301, and the cerebrospinal fluid is pumped from the connection chamber 101 into the syringe barrel 301.

Claims

1. A measuring and sampling device for clinical neurology, characterized in that: It includes a shell assembly, a core pulling assembly and a docking assembly installed on the shell assembly, a needle pulling assembly installed on the core pulling assembly, a syringe pulling assembly installed on the docking assembly, a needle assembly and a syringe assembly detachably installed in the shell assembly, and a cover assembly detachably installed on the shell assembly. The core pulling assembly is used to drive the needle pulling assembly and the needle assembly to move. The input end of the docking assembly is connected to the output end of the core pulling assembly. The docking assembly is used to drive the syringe pulling assembly and the syringe assembly to move. When the needle assembly moves to a preset position, the cover assembly is used to send a signal to the core pulling assembly. A positioning assembly is installed on the shell assembly. When the needle assembly moves to a preset position, the positioning assembly is used to lock the needle assembly with the shell assembly. A liquid extraction assembly is installed on the needle pulling assembly. A sensing unit is installed in the shell assembly. When the syringe assembly moves to a preset position, the sensing unit is used to send a signal to the liquid extraction assembly, and the liquid extraction assembly is used to drive liquid to flow into the syringe assembly.

2. A neurological clinical measurement sampling device according to claim 1, characterized in that: The housing assembly comprises a communication chamber (101), a No. 1 channel chamber (102) fixedly connected to the communication chamber (101), a No. 2 channel chamber (103) and a handle (104), a needle sleeve (105) fixedly installed on the communication chamber (101) and a recessed chamber (106) opened on the communication chamber (101); a No. 1 hole is arranged between the No. 1 channel chamber (102) and the communication chamber (101); a No. 2 hole is arranged between the No. 2 channel chamber (103) and the communication chamber (101); the needle sleeve (105) is connected to the communication chamber (101); the No. 1 channel chamber (102) and the needle sleeve (105) are on the same axis; the needle assembly is arranged in the No. 1 channel chamber (102) and can move along the axis of the No. 1 channel chamber (102); the syringe assembly is arranged in the No. 2 channel chamber (103) and can move along the axis of the No. 2 channel chamber (103); and the handle (104) is a hollow structure; When the needle assembly moves toward the communication chamber (101), the syringe assembly moves toward an end away from the communication chamber (101); when the needle assembly moves toward an end away from the communication chamber (101), the syringe assembly moves toward the communication chamber (101); A channel switching assembly is installed on the housing assembly, and the channel switching assembly is used to open or close the first channel and the second channel. The channel switching assembly includes a third motor (1301) installed on the communication chamber (101), an active transposition bevel gear (1302) fixedly connected to the output end of the third motor (1301), a first driven transposition bevel gear (1303) and a second driven transposition bevel gear (1305) movably connected to the communication chamber (101), a first ball head (1304) fixedly connected to the first driven transposition bevel gear (1303), and a second ball head (1305) fixedly connected to the communication chamber (101). The second ball head (1306) on the second driven transposition bevel gear (1305), the first ball head (1304) and the second ball head (1306) are all provided with openings, the active transposition bevel gear (1302) is meshed with the first driven transposition bevel gear (1303) and the second driven transposition bevel gear (1305), the third motor (1301) is used to drive the active transposition bevel gear (1302) to rotate, and the active transposition bevel gear (1302) is used to drive the first driven transposition bevel gear (1303) and the second driven transposition bevel gear (1305) to rotate; The first driven transposition bevel gear (1303) is used to drive the orifice on the first ball head (1304) to be connected to or disconnected from the first channel, and the second driven transposition bevel gear (1305) is used to drive the orifice on the second ball head (1306) to be connected to or disconnected from the second channel. When the orifice on the first ball head (1304) is connected to the first channel, the orifice on the second ball head (1306) is disconnected from the second channel; when the orifice on the first ball head (1304) is disconnected from the first channel, the orifice on the second ball head (1306) is connected to the second channel.

3. A neurological clinical measurement sampling device according to claim 2, characterized in that: The core pulling assembly comprises a No. 1 motor (401) mounted on a No. 1 channel bin (102), a No. 1 driving gear (402) mounted on the output end of the No. 1 motor (401), a No. 2 driving gear (403) mounted on the No. 1 driving gear (402), a plurality of primary transmission gears (404) movably connected to the No. 1 channel bin (102), a primary chain (405) meshingly connected to the plurality of primary transmission gears (404), and a primary linkage gear (406) mounted on one of the primary transmission gears (404), wherein the No. 1 motor (401) is used to drive the No. 1 driving gear (402) and the No. 2 driving gear (403) to rotate, the No. 1 driving gear (402) is meshed with the primary linkage gear (406), the No. 1 driving gear (402) is used to drive the primary linkage gear (406) and the corresponding primary transmission gear (404) to rotate, and the primary transmission gear (404) is used to drive the primary chain (405) to transmit; The needle pulling assembly comprises a No. 1 fitting seat (501) fixedly connected to the primary chain (405), a clamping block (502) movably connected to the No. 1 fitting seat (501), a No. 1 reset spring (503) fixedly connected to the clamping block (502), a reset pin (504) movably connected to the No. 1 fitting seat (501) and a No. 2 reset spring (505) fixedly connected to the reset pin (504). When the reset pin (504) moves downward, the clamping block (502) slides into the No. 1 fitting seat (501); when the reset pin (504) moves upward, the clamping block (502) extends out of the No. 1 fitting seat (501).

4. A neurological clinical measurement sampling device according to claim 3, characterized in that: The docking assembly comprises a plurality of secondary transmission gears (901) movably connected to the No. 2 channel bin (103), a secondary chain (902) meshedly connected to the plurality of secondary transmission gears (901), and a secondary linkage gear (903) fixedly connected to one of the secondary transmission gears (901), the secondary linkage gear (903) meshing with the No. 1 driving gear (402), the No. 1 driving gear (402) is used to drive the secondary linkage gear (903) and the corresponding secondary transmission gear (901) to rotate, and the secondary transmission gear (901) is used to drive the secondary chain (902) to transmit; The syringe pulling assembly comprises a No. 2 fitting seat (1001) fixedly connected to the secondary chain (902), a guide rod (1002) fixedly connected in the fitting seat, a slider (1003) movably connected to the guide rod (1002) and a No. 4 return spring (1004) installed on the slider (1003). A slide groove is provided on one side of the No. 2 channel bin (103). When the slider (1003) moves along the guide rod (1002), the slider (1003) enters or escapes from the slide groove.

5. A neurological clinical measurement sampling device according to claim 4, characterized in that: The needle assembly comprises a needle tail (201) arranged in a No. 1 channel compartment (102), a needle core (202) fixedly connected to the needle tail (201), and a bayonet (203) provided on the needle tail (201); when the bayonet (502) enters the bayonet (203), the needle tail (201) is fixed to the No. 1 fitting seat (501); when the needle assembly moves toward the communication compartment (101), the orifice on the No. 1 ball head (1304) is communicated with the No. 1 channel, and the needle core (202) can enter the needle sleeve (105) through the No. 1 channel; when one end of the needle core (202) passes through the needle sleeve (105), the needle tail (201) closes the No. 1 channel; The positioning assembly comprises a cylinder (801) mounted on the housing assembly and a positioning pin (802) mounted on the output end of the cylinder (801); a pin eye is provided on the needle tail (201); the cylinder (801) is used to drive the positioning pin (802) to enter or escape from the pin eye; The syringe assembly comprises a syringe (301) arranged in a No. 2 channel compartment (103), a piston (302) movably connected in the syringe (301), and a tail plate (303) fixedly connected to one end of the piston (302); a gap is provided between the tail plate (303) and the syringe (301); when the slider (1003) enters the gap, the syringe (301) is fixed to the No. 2 fitting seat (1001); when the syringe assembly moves toward the communication compartment (101), the orifice on the No. 2 ball head (1306) is communicated with the No. 2 channel, and the end of the syringe (301) can enter the No. 2 channel.

6. A neurological clinical measurement sampling device according to claim 5, characterized in that: The cover assembly comprises a top cover (601) arranged at the top of a No. 1 channel bin (102), an adjustment bin (602) fixedly mounted on the top cover (601), a No. 1 tension sensor (603) fixedly mounted on the top cover (601), a No. 1 induction spring (604) having one end connected to the No. 1 tension sensor (603), a knob (701) movably connected to the adjustment bin (602), a No. 1 adjustment bevel gear (702) fixedly connected to the knob (701), a No. 2 adjustment bevel gear (703) movably connected in the adjustment bin (602), a screw rod (704) threadedly connected in the No. 2 adjustment bevel gear (703), a bayonet (705) fixedly connected to the screw rod (704), and a spring mounted on the bayonet (705). A No. 3 reset spring (706), a No. 1 channel bin (102) and a top cover (601) are provided with pin holes, a No. 1 adjusting bevel gear (702) is meshed with a No. 2 adjusting bevel gear (703), a knob (701) is used to drive the No. 1 adjusting bevel gear (702) to rotate, and the No. 1 adjusting bevel gear (702) is used to drive the No. 2 adjusting bevel gear (703) to rotate. When the No. 2 adjusting bevel gear (703) rotates, the screw (704) moves along the central axis direction of the No. 2 adjusting bevel gear (703), and the latch pin (705) enters or escapes from the corresponding pin hole. The needle tail (201) is fixedly connected to the other end of the No. 1 sensing spring (604), and the No. 1 tension sensor (603) is used to detect the tension value of the No. 1 sensing spring (604); When the No. 1 tension sensor (603) detects that the tension value of the No. 1 induction spring (604) reaches F1, a signal is sent to the control unit of the No. 1 motor (401) and the control unit of the cylinder (801), and the positioning pin (802) enters the pin hole; when the No. 1 tension sensor (603) detects that the tension value of the No. 1 induction spring (604) reaches F2, a signal is sent to the control unit of the No. 1 motor (401), and the No. 1 mounting seat (501) is pressed against the top wall of the No. 1 channel bin (102).

7. A neurological clinical measurement sampling device according to claim 6, characterized in that: The liquid pumping assembly comprises a No. 2 motor (1101) mounted on a No. 2 mounting seat (1001), a power gear (1102) fixedly mounted on the output end of the No. 2 motor (1101), a power gear sleeve (1103) movably connected to the No. 2 mounting seat (1001), a stud (1104) threadedly connected in the power gear sleeve (1103), an end seat (1105) arranged on the No. 2 mounting seat (1001), a guide post (1106) fixedly connected in the end seat (1105), two cantilevers (1107) movably connected to the end seat (1105), and a guide post (1106) mounted on the cantilever (1107). The torsion spring (1108) of the second motor (1101) is used to drive the power gear (1102) to rotate, the power gear (1102) is meshed with the power gear sleeve (1103), the power gear (1102) is used to drive the power gear sleeve (1103) to rotate, when the power gear sleeve (1103) rotates, the stud (1104) moves along the central axis direction of the power gear sleeve (1103), one end of the stud (1104) is fixedly connected to the end seat (1105), the guide column (1106) is movably connected in the second mounting seat (1001), and the slider (1003) is between the two cantilevers (1107); When the slider (1003) moves toward the direction of the slide slot, the two cantilevers (1107) open and leave the gap between the tail plate (303) and the syringe (301); when the slider (1003) moves in the direction away from the slide slot, the two cantilevers (1107) close and enter the gap between the tail plate (303) and the syringe (301); when the stud (1104) moves upward along the central axis of the power gear sleeve (1103), the cantilever (1107) pushes the tail plate (303) and the plunger to move, and the liquid flows into the syringe (301) through the communication chamber (101) and the second channel; The sensing unit comprises a No. 2 sensing spring (1201) and a No. 2 tension sensor (1202) installed in a No. 2 channel bin (103). The No. 2 tension sensor (1202) is used to detect the tension value of the No. 2 sensing spring (1201). When the No. 2 tension sensor (1202) detects that the tension value of the No. 2 sensing spring (1201) reaches F3, a signal is sent to the control unit of the No. 2 motor (1101), and the power gear sleeve (1103) drives the stud (1104) to move up along the central axis direction of the power gear sleeve (1103).

8. A neurological clinical measurement sampling device according to claim 7, characterized in that: A transmission component and a disinfection component are installed on the shell component. The input end of the transmission component is connected to the output end of the core-pulling component. The transmission component is used to drive the disinfection component to extend or retract into the shell component.

9. A neurology clinical measurement sampling device according to claim 8, characterized in that: The transmission assembly comprises a primary transmission disc (1401) and a secondary transmission disc (1402) movably connected to the first channel bin (102), an active transmission bevel gear (1403) fixedly connected to the secondary transmission disc (1402), a plurality of third-stage transmission gears (1404) movably connected to the first channel bin (102), a third-stage chain (1405) meshedly connected to the plurality of third-stage transmission gears (1404), a third-stage linkage bevel gear (1406) fixedly connected to one of the third-stage transmission gears (1404), and a third-stage linkage flat gear (1407) fixedly connected to another third-stage transmission gear (1404). The primary transmission disc (1401) meshes with the second active gear (403). The second driving disc (1402) is meshed with the first driving disc (1401), the second driving gear (403) is used to drive the first driving disc (1401) to rotate, the first driving disc (1401) is used to drive the second driving disc (1402) and the driving driving bevel gear (1403) to rotate, the driving driving bevel gear (1403) is meshed with the three-stage linkage bevel gear (1406), the driving driving bevel gear (1403) is used to drive the three-stage linkage bevel gear (1406) and the corresponding three-stage transmission gear (1404) to rotate, the three-stage transmission gear (1404) is used to drive the three-stage chain (1405) to transmit, and the three-stage chain (1405) is used to drive the three-stage linkage flat gear (1407) to rotate; The disinfection assembly comprises a tray (1504) arranged in a recessed bin (106), a push-pull rod (1503) with one end fixedly connected to the tray (1504), a rocker arm (1502) movably connected to the other end of the push-pull rod (1503), and a swing plate (1501) movably connected in a communication bin (101), the swing plate (1501) meshing with a three-stage linkage flat gear (1407), the three-stage linkage flat gear (1407) being used to drive the swing plate (1501) to rotate, the swing plate (1501) being used to drive the rocker arm (1502) to swing back and forth, and the rocker arm (1502) being used to drive the push-pull rod (1503) to move along its own axis direction; When the end of the needle core (202) passes through the needle sleeve (105), the rocker arm (1502) drives the push-pull rod (1503) to pull the tray (1504) back into the recessed bin (106); when the end of the needle core (202) retracts into the needle sleeve (105), the rocker arm (1502) drives the push-pull rod (1503) to push the tray (1504) out of the recessed bin (106).

10. A clinical measurement sampling method for neurology, characterized in that: The method of using a neurological clinical measurement sampling device as claimed in claim 9 comprises the following steps: S1: The user first disinfects the needle core (202) and the needle sleeve (105), and then holds the top cover (601) to cover the No. 1 channel compartment (102), so that the needle core (202) and the needle tail (201) enter the No. 1 channel compartment (102). At this time, the bayonet (203) and the clamping block (502) are in relative positions, and the No. 1 return spring (503) elastically extends, pushing the clamping block (502) into the bayonet (203), so that the needle tail (201) and the No. 1 fitting seat are aligned. (501) is fixed, the knob (701) is rotated by hand, and the No. 2 adjusting bevel gear (703) is controlled to rotate through the No. 1 adjusting bevel gear (702), so that the screw (704) is inserted into the corresponding pin hole during the movement, and the top cover (601) and the No. 1 channel compartment (102) are locked. Then, a medical cotton ball is soaked in the medical alcohol stored in the handle (104) with tweezers, and then fixed on the tray (1504); S2: Then, the No. 1 motor (401) in the core pulling assembly is started, and the No. 1 motor (401) drives the No. 1 driving gear (402) to rotate, which in turn drives the first linkage gear (406), the first transmission gear (404) and the first chain (405) to produce a transmission effect, driving the No. 1 fitting seat (501) and the needle tail (201) fixed by the No. 1 fitting seat (501) to move downward. At the same time, the No. 1 driving gear (402) outputs power to the second linkage gear (903), so that the second transmission gear (901) and the second chain (902) produce a transmission effect, driving the No. 2 fitting seat (1001) to move upward along the slide groove; S3: At the same time, when the tension sensor No. 1 (603) detects that the tension value of the induction spring No. 1 (604) reaches F4, it sends a signal to the motor No. 3 (1301), and the motor No. 3 (1301) controls the active transposition bevel gear (1302) to rotate, and simultaneously drives the driven transposition bevel gear No. 1 (1303) and the driven transposition bevel gear No. 2 (1305) to rotate, so that the hole on the ball head No. 1 (1304) is connected with the hole No. 1, and the hole on the ball head No. 2 (1306) is disconnected from the hole No. 2; S4: When the needle core (202) passes through the No. 1 channel and enters the needle sleeve (105), until the needle tail (201) blocks and closes the No. 1 channel, the No. 1 tension sensor (603) detects that the tension value of the No. 1 induction spring (604) reaches F1, sends a signal to the No. 1 motor (401) to stop running, and sends a signal to the cylinder (801), the cylinder (801) drives the positioning pin (802) to extend into the pin eye, and locks the needle tail (201) in the No. 1 channel compartment (102), and at this time the No. 2 fitting seat (1001) moves to the top of the No. 2 channel compartment (103); S5: Then, the user pushes the slider (1003) out of the slide slot by hand, overcoming the elastic force of the No. 4 return spring (1004), and squeezes the cantilever (1107) through the slider (1003), so that the two cantilevers (1107) overcome the elastic force of the torsion spring (1108) and open, and the syringe (301) is sent into the No. 2 channel bin (103), so that the gap between the syringe (301) and the tail plate (303) is at the position of the slider (1003). After releasing the slider (1003), the No. 4 return spring (1004) pushes the slider (1003) into the gap between the syringe (301) and the tail plate (303), and at the same time, the squeezing force of the slider (1003) on the cantilever (1107) disappears, and the elastic restoring force of the torsion spring (1108) causes the cantilever (1107) to close and enter the gap between the syringe (301) and the tail plate (303); S6: In steps S2-S4, the second driving gear (403) controls the primary transmission disc (1401) to rotate through meshing transmission, and the primary transmission disc (1401) drives the secondary transmission disc (1402) and the driving transmission bevel gear (1403) to rotate. The driving transmission bevel gear (1403) transmits power to the third-stage linkage bevel gear (1406), and the third-stage transmission gear (1404) and the third-stage chain (1405) are controlled by the third-stage linkage bevel gear (1406) to produce a transmission effect, driving the third-stage linkage flat gear (1407) ) rotates continuously, and the three-stage linkage flat gear (1407) transmits power to the swing plate (1501). During the rotation process, the swing plate (1501) drives the rocker arm (1502) to swing back and forth, generating continuous push-pull force on the push-pull rod (1503), controlling the tray (1504) to continuously extend or retract into the recessed bin (106). After finding the puncture position, the puncture point is first smeared with a medical cotton ball extending out of the recessed bin (106) for disinfection. After the needle tail (201) is locked with the No. 1 channel bin (102), the medical cotton ball is just retracted into the recessed bin (106); S7: Next, the user holds the handle (104) and performs puncture through the needle core (202) and the needle sheath (105) until the cerebrospinal fluid is entered; S8: Then, the air cylinder (801) and the No. 1 motor (401) are started in sequence. The air cylinder (801) controls the positioning pin (802) to disengage from the pin eye, thereby releasing the lock between the needle tail (201) and the No. 1 channel bin (102). The No. 1 motor (401) outputs power in the reverse direction. According to the steps S2-S4 above, the No. 1 fitting seat (501) drives the needle core (202) and the needle tail (201) to move upward along the No. 1 channel bin (102). At the same time, the No. 2 fitting seat (1001) drives the needle cylinder (301) along the No. 1 channel bin (102) through the limit of the slider (1003) and the syringe (301). The No. 2 channel chamber (103) moves downward, and when the No. 1 tension sensor (603) detects again that the tension value of the No. 1 induction spring (604) reaches F4, at this time, the needle core (202) is separated from the No. 2 channel, and a signal is sent to the No. 3 motor (1301), and the No. 1 ball head (1304) and the No. 2 ball head (1306) are controlled to rotate by the No. 3 motor (1301), so that the orifice on the No. 1 ball head (1304) is disconnected from the No. 1 channel, and the orifice on the No. 2 ball head (1306) is connected to the No. 2 channel, and the cerebrospinal fluid flows into the communication chamber (101) along the needle sleeve (105); S9: the needle core (202) and the needle tail (201) continue to move upward along the No. 1 channel bin (102), and the needle cylinder (301) continues to move downward along the No. 2 channel bin (103). When the No. 1 fitting seat (501) abuts against the top wall of the No. 1 channel bin (102), the No. 1 tension sensor (603) detects that the tension value of the No. 1 induction spring (604) reaches F2, and sends a signal to the No. 1 motor (401) to stop running. Due to the squeezing effect of the top wall of the No. 1 channel bin (102), the reset pin (504) retracts into the No. 1 fitting seat (501) and squeezes the block (502), so that the block (502) is separated from the bayonet (203). At this time, the needle tail (201) is only fixed by the No. 1 induction spring (604) in a contracted state. At the same time, the end of the needle cylinder (301) also enters the No. 2 channel. S10: When the syringe (301) is connected to the No. 2 channel, the No. 2 tension sensor (1202) detects that the tension value of the No. 2 induction spring (1201) reaches F3, and sends a signal to the control unit of the No. 2 motor (1101). The No. 2 motor (1101) controls the power gear (1102) to rotate, and drives the power gear sleeve (1103) to rotate, so that the stud (1104) moves up along the central axis of the power gear sleeve (1103). Through the limiting action of the cantilever (1107) and the tail plate (303), the tail plate (303) and the plunger are pushed to move along the central axis of the syringe (301), so that cerebrospinal fluid is drawn from the communication chamber (101) into the syringe (301).

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