Newborn lumbar puncture needle device

Abstract

The invention discloses a neonatal lumbar puncture needle device in the technical field of lumbar puncture, which comprises guide column assemblies, the guide column assemblies are symmetrically arranged on a base and rotatably connected with the base, the guide column assemblies rotate at 0 degree and 90 degrees, a neonatal is placed on the base in a side-lying posture or a prostrate posture, and the guide column assemblies are arranged on the base and rotatably connected with the base. A newborn is arranged between the two guide column assemblies; the positioning assembly is connected with the guide column assemblies in a lifting mode, the positioning assembly moves between the two guide column assemblies and makes contact with the skin of the lumbar vertebra of the newborn, and according to the newborn lumbar puncture needle device, through cooperative use of the positioning assembly and the guide column assemblies, the puncture needle assembly can be driven to move; the neonatal puncture needle can fix a neonatal in a prone position or a lateral position and complete puncture, the lumbar vertebra can be accurately positioned when the neonatal is in the prone position, and the labor intensity of medical staff can be reduced when the neonatal is in the lateral position.

Description

Technical Field

[0001] The invention relates to the technical field of lumbar puncture, in particular to a neonatal lumbar puncture needle device. Background Art

[0002] Lumbar puncture is one of the commonly used clinical operations in neurology, mainly used for measuring cerebrospinal fluid pressure, extracting cerebrospinal fluid, injecting drugs into the subarachnoid space, cerebrospinal fluid angiography, etc.

[0003] During lumbar puncture, the patient is generally placed in the prone or lateral position. In the prone position, the patient lies prone on the operating table and the puncture is performed from top to bottom, and the cerebrospinal fluid is discharged from bottom to top, which can effectively avoid the outflow of a large amount of cerebrospinal fluid in a short period of time and cause brain herniation. However, since the lumbar spine is not prominent due to the prone position, it is extremely difficult to locate the puncture position, while the lateral position can effectively protrude the lumbar spine and accurately locate it. However, during lumbar puncture of newborns, since the newborns have no autonomy, when the lateral position is adopted, medical staff are required to fix the newborns in a semi-covered position, which greatly increases the labor intensity of medical staff. Therefore, how to improve the positioning accuracy of the prone position while reducing the labor intensity of medical staff in the lateral position is a problem that needs to be urgently solved by technicians in this technical field. Summary of the invention

[0004] The object of the present invention is to provide a neonatal lumbar puncture needle device to solve the problem that the lumbar puncture process generally adopts the prone position or the lateral position proposed in the above-mentioned background technology. In the prone position, since the person lies prone on the operating table, the puncture is performed from top to bottom during the puncture, and the cerebrospinal fluid is discharged from bottom to top, which can effectively avoid the outflow of a large amount of cerebrospinal fluid in a short period of time and cause the occurrence of brain herniation. However, since the lumbar vertebrae are not prominent due to the prone position, it is extremely difficult to locate the puncture position, while the lateral position can effectively protrude the lumbar vertebrae and accurately locate them. However, during the lumbar puncture of the neonate, since the neonate has no autonomy, when the lateral position is adopted, medical staff are required to fix the neonate in a semi-covered posture, which greatly increases the labor intensity of the medical staff.

[0005] To achieve the above object, the present invention provides the following technical solution: a neonatal lumbar puncture needle device, comprising:

[0006] Base;

[0007] A guide column assembly, wherein the guide column assembly is symmetrically arranged on the base and is rotatably connected to the base, and the guide column assembly is rotated by 0° and 90°, and the newborn is placed on the base in a side-lying or prone position, and the newborn is between two guide column assemblies;

[0008] A positioning assembly, wherein the positioning assembly is connected to the guide post assembly in a lifting manner, and the positioning assembly moves between the two guide post assemblies and contacts the skin of the lumbar spine of the newborn;

[0009] A puncture needle assembly, wherein the puncture needle assembly is connected to the positioning assembly, and the puncture needle assembly moves to perform lumbar puncture under the drive of the positioning assembly;

[0010] A control system is installed on the base.

[0011] Preferably, the base comprises:

[0012] Base plate;

[0013] A support platform, the support platform is arranged at the top middle position of the bottom plate, and the newborn is fixed on the support platform in a side-lying or prone position;

[0014] Columns, which are symmetrically arranged on the top of the bottom plate and distributed on both sides of the support platform;

[0015] A lead screw, the lead screw being rotatably connected to the column;

[0016] A lifting seat is connected to the column in an ascending and descending manner and is movably connected to the lead screw.

[0017] Preferably, a groove is provided on the top of the support platform, and the newborn is fixed inside the groove in a prone position;

[0018] The side of the support platform is provided with a side of a boss, and the newborn is in contact with the boss in a side-lying posture.

[0019] Preferably, the lifting seat comprises:

[0020] A frame, wherein a connecting column is provided on a side of the frame;

[0021] A connecting block, the connecting block is arranged on the inner side of the frame, a threaded hole is formed through the top of the connecting block, and the connecting block is connected to the lead screw through the threaded hole;

[0022] A first limiting plate, wherein the first limiting plate is arranged on a side surface of the frame body, and a first sliding block is arranged on a side wall of the first limiting plate;

[0023] A second limiting plate is arranged at the bottom of the frame, and a second sliding block is arranged on the top of the second limiting plate.

[0024] Preferably, the guide column assembly comprises:

[0025] Guide columns;

[0026] A first slide groove, which is opened on the side of the guide column and passes through the top of the guide column;

[0027] a spring, wherein the spring is arranged on the inner side of the first sliding groove;

[0028] a second slide groove, the second slide groove being arranged on a side of the guide column away from the first slide groove;

[0029] A guide groove is provided on both sides of the guide column.

[0030] Preferably, the positioning component comprises:

[0031] A cross bar, wherein a second connecting hole is formed through the middle of the top of the cross bar, and a first fixing ear is symmetrically provided at the bottom of the cross bar;

[0032] a telescopic arm, the telescopic arm being movably connected to the first fixing ear;

[0033] A positioning plate, the positioning plate is connected to an end of the telescopic arm away from the cross bar, the positioning plate corresponds to the second connecting hole, and the distance between the positioning plate and the cross bar is adjusted by the telescopic arm;

[0034] A clamping mechanism, wherein the clamping mechanism is movably connected to the cross bar, the clamping mechanism comprises a movable plate, a connecting rod, a driving rod and a guide rod, the movable plate is arranged on the outer side of the cross bar, the connecting rod is connected to the movable plate and passes through the cross bar and is inserted into the inner side of the second connecting hole, a fixing block is arranged at the end of the connecting rod, and the fixing block is arranged on the inner side of the second connecting hole, the driving rod is movably connected to the cross bar and passes through both sides of the cross bar and is threadedly connected to the movable plate, and the guide rod is movably connected to the cross bar and passes through both sides of the cross bar and is movably connected to the movable plate.

[0035] Preferably, the puncture needle assembly comprises:

[0036] A handle assembly, the handle assembly comprising a handle, a thread groove, a connecting groove, a sealing groove and a transition groove, the thread groove being arranged at the top of the handle, the connecting groove being arranged at the bottom of the handle, the sealing groove being arranged inside the handle and intersecting with the connecting groove, the transition groove being arranged inside the handle and intersecting with the thread groove and the sealing groove respectively, a liquid discharge port being arranged on the side wall of the handle, and the liquid discharge port being intersecting with the transition groove;

[0037] An adjusting mechanism, the adjusting mechanism being movably connected to the thread groove;

[0038] A sealing mechanism, the sealing mechanism is connected to the adjusting mechanism and is disposed in the inner cavity of the sealing groove and the transition groove, and the sealing mechanism cooperates with the sealing groove to seal the passage between the sealing groove and the transition groove;

[0039] A puncture needle is detachably connected to the connecting groove.

[0040] Preferably, the adjustment mechanism comprises:

[0041] A rotary rod, wherein an external thread is provided on the circumferential outer wall of the rotary rod, and the external thread is connected to the thread groove;

[0042] A rotating handle, the rotating handle is arranged at the end of the rotating rod and arranged outside the handle;

[0043] An adjusting spring is arranged in the inner cavity of the rotating rod and contacts the rotating handle.

[0044] Preferably, the sealing mechanism comprises:

[0045] A pressure rod, the end of which is inserted into the inner cavity of the rotating rod and contacts the adjusting spring;

[0046] A cylindrical plug, which is arranged at the other end of the pressure rod and outside the rotating rod;

[0047] A conical plug is arranged at the end of the cylindrical plug.

[0048] Preferably, the control system comprises:

[0049] A collection module, the collection module is used to collect pressure data and temperature data of the newborn when it is under pressure;

[0050] A storage module, wherein the storage module stores comparison data used for comparison;

[0051] A processing module, the processing module is electrically connected to the acquisition module and the storage module respectively, and is used to compare the acquired data with the stored comparison data and output the comparison result;

[0052] A control module is electrically connected to the processing module and is used to receive the comparison result output by the processing module and output a control signal according to the comparison result.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] (1) The positioning assembly and the guide column assembly can be used together to drive the puncture needle assembly to move, so that the newborn can be fixed in a prone position or a lateral position and the puncture can be completed. The lumbar spine can be accurately positioned in the prone position, and the labor intensity of medical staff can be reduced in the lateral position.

[0055] (2) The inner side of the groove, the outer side of the boss and the top of the bottom plate are all covered with a silicone pad to improve comfort. The silicone pad is a heat-conducting silicone pad. A heating mechanism is installed inside the silicone pad to heat the silicone pad. The heating mechanism includes but is not limited to circulating water heating and electric heating. The abdomen and sides of the newborn can be heated to prevent the newborn from getting cold during the lumbar puncture and thus developing diarrhea or other diseases that are not conducive to the growth of the newborn, thereby ensuring the health of the newborn;

[0056] (3) A water pipe is coiled around the part of the positioning plate that contacts the human body, and hot water flows in the water pipe. During the puncture process, the positioning plate contacts the part of the human body that needs to be punctured, and the water pipe contacts the human body. The hot water flowing in the water pipe heats the human skin. Heating the part of the human body can reduce the pain during the puncture process, avoid the newborn from becoming agitated due to the pain during the puncture process, and affect the success rate of the puncture, thereby effectively ensuring the success rate of the puncture;

[0057] (4) The cerebrospinal fluid enters the inner cavity of the sealing groove through the puncture needle. The cone plug is driven away from the sealing groove by the pressure of the cerebrospinal fluid, and a gap that penetrates the transition groove is formed between the cone plug and the sealing groove. The cerebrospinal fluid enters the inner cavity of the transition groove through the gap between the cone plug and the sealing groove and enters the interior of the test tube through the drainage port to collect the cerebrospinal fluid. During the whole process, the cerebrospinal fluid will not contact the air of the external environment, which can effectively avoid the contamination of the cerebrospinal fluid by pathogens in the external environment, and ensure the accuracy of the later cerebrospinal fluid test results;

[0058] (5) During the process of collecting cerebrospinal fluid, medical staff need to observe the test tube all the time. When a large amount of cerebrospinal fluid flows into the test tube, the medical staff needs to quickly rotate the handle. The rotation of the handle compresses the adjustment spring to apply pressure to the pressure rod to drive the conical plug into the sealing groove, thereby blocking the flow of cerebrospinal fluid and avoiding the outflow of a large amount of cerebrospinal fluid due to excessive intracranial pressure, thereby preventing the appearance of brain herniation, thereby ensuring safety during the operation;

[0059] (6) The flow rate sensor transmits the flow rate of cerebrospinal fluid to the controller in real time. When the flow rate of cerebrospinal fluid is too fast, the controller controls the motor to start, and the output shaft on the motor drives the driving wheel to rotate. The driving wheel drives the rotary handle to rotate the compression adjustment spring to apply pressure to the pressure rod to drive the conical plug into the sealing groove, thereby blocking the circulation of cerebrospinal fluid and avoiding the outflow of a large amount of cerebrospinal fluid due to excessive intracranial pressure, thereby preventing the appearance of brain herniation. The sensor can react quickly, thereby preventing the outflow of cerebrospinal fluid in time, further ensuring safety during the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the structure of the present invention;

[0061] Figure 2 It is a schematic cross-sectional view of the base portion of the present invention;

[0062] Figure 3 This is a schematic diagram of the lifting seat structure of the present invention;

[0063] Figure 4 It is a partial cross-sectional schematic diagram of the guide column assembly of the present invention;

[0064] Figure 5 This is a schematic diagram of the positioning assembly structure of the present invention;

[0065] Figure 6 It is a schematic diagram of the structure of the clamping mechanism of the present invention;

[0066] Figure 7 It is a partial cross-sectional schematic diagram of the puncture needle assembly of the present invention;

[0067] Figure 8 It is a cross-sectional schematic diagram of the handle assembly of the present invention;

[0068] Fig. 9 It is a cross-sectional view of the adjusting mechanism of the present invention and a schematic diagram of the connection between the adjusting mechanism and the sealing mechanism;

[0069] Fig.10 It is a schematic diagram of the use of the lateral position of the present invention.

[0070] In the figure: 100 base, 110 bottom plate, 120 support platform, 120a groove, 120b boss, 130 column, 130a top plate, 140 lead screw, 140a first connecting hole, 150 lifting seat, 150a frame, 150a-1 connecting column, 150b connecting block, 150b-1 threaded hole, 150c first limiting plate, 150c-1 first slider, 150d second limiting plate, 150d-1 second slider, 200 guide column assembly, 210 guide column, 220 first slide groove, 230 spring, 240 second slide groove, 250 guide groove, 300 positioning assembly, 310 cross bar, 310a third slider, 310b second connecting hole, 310c first fixing ear, 32 0 telescopic arm, 320a upper arm, 320b lower arm, 330 positioning plate, 330a second fixed ear, 330b positioning hole, 340 clamping mechanism, 340a moving plate, 340b connecting rod, 340b-1 fixed block, 340c driving rod, 340d guide rod, 400 puncture needle assembly, 410 handle assembly, 410a handle, 410a-1 discharge port, 410b thread groove, 410c connecting groove, 410d sealing groove, 410e transition groove, 420 adjustment mechanism, 420a rotary rod, 420a-1 external thread, 420b rotary handle, 420c adjustment spring, 430 sealing mechanism, 430a pressure rod, 430b cylindrical plug, 430c conical plug, 440 puncture needle. DETAILED DESCRIPTION

[0071] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0072] The present invention provides a neonatal lumbar puncture needle device. The guide column assembly can rotate 0° and 90° on the base. The positioning assembly and the guide column assembly can be used together to drive the puncture needle assembly to move. The neonate can be fixed in a prone position or a lateral position and the puncture can be completed. The lumbar spine can be accurately positioned in the prone position, and the labor intensity of medical staff can be reduced in the lateral position. Please refer to Figure 1 , including: a base 100, a guide column assembly 200, a positioning assembly 300 and a puncture needle assembly 400;

[0073] Example 1

[0074] See also Figure 1 and Fig.10 The base 100 is placed on the operating table, and the bottom of the base 100 is weighted to prevent it from moving at will and ensure safety during the operation;

[0075] The guide column assembly 200 is movably connected to the base 100, and the guide column assembly 200 can be turned 0° and 90°. Figure 1 and Fig.10 As shown in Figure 1 The adjustment direction of the guide column assembly 200 during prone position puncture, Fig.10 The guide column assembly 200 is adjusted in the side-lying position. When the guide column assembly 200 is at a 90° position, it is used for performing lumbar puncture on the newborn in the prone position. When the guide column assembly 200 is at a 0° position, it is used for performing lumbar puncture on the newborn in the side-lying position. The base 100 is provided with a driving device for driving the guide column assembly 200 to move. The height position of the guide column assembly 200 can be adjusted by the driving device to adapt to the position of the lumbar spine in the prone position or the side-lying position.

[0076] The positioning assembly 300 is movably connected to the guide column assembly 200. The positioning assembly 300 can move between the two guide column assemblies 200 along the height direction of the guide column assemblies 200. The positioning assembly 300 can move on the guide column assembly 200 to gradually approach the lumbar position.

[0077] The puncture needle assembly 400 can be detachably mounted on the positioning assembly 300. The puncture needle assembly 400 is driven by the positioning assembly 300 to move and gradually approach the lumbar spine and penetrate into the lumbar spine to obtain cerebrospinal fluid. Under the adjustment of the guide column assembly 200, lumbar puncture can be completed for the newborn in the prone position or the lateral position. The lumbar spine can be accurately positioned in the prone position, and the labor intensity of medical staff can be reduced in the lateral position.

[0078] Example 2

[0079] See also Figure 1-6 and Fig.10 ,

[0080] The base 100 includes a bottom plate 110, a support platform 120, a column 130, a lead screw 140 and a lifting seat 150;

[0081] The bottom plate 110 is placed on the operating table, and the bottom plate 110 is weighted so that the bottom plate 110 can be moved freely to avoid the phenomenon that the movement of the device during the puncture affects the puncture effect due to the movement of the newborn.

[0082] The support platform 120 is detachably mounted at the top middle position of the base plate 110 by bolts;

[0083] A groove 120a is provided on the top of the support platform 120. The groove 120a is an inwardly concave arc groove. When the newborn is in a prone position, the newborn lies prone on the support platform 120. The abdomen of the newborn corresponds to the groove 120a. The whole body presents an upwardly convex arc structure, and the lumbar vertebrae protrude upward, which is convenient for medical staff to accurately locate the lumbar vertebrae. Compared with the existing prone position, the lumbar vertebrae can be accurately located, thereby ensuring the success rate of lumbar puncture.

[0084] The side of the support platform 120 is integrally formed with a boss 120b, which protrudes outward. When the newborn is in a side-lying position, the medical staff places the newborn on the bottom plate 110, with the abdomen of the newborn facing the boss 120b and in contact with the boss 120b, and the hands and feet go around the two sides of the support platform 120 to the side of the support platform 120 away from the boss 120b. The medical staff fixes the hands and feet of the newborn. The lumbar spine of the newborn protrudes outward under the action of the boss 120b, which is convenient for the medical staff to accurately locate the lumbar spine. Compared with the traditional side-lying position that requires the whole body of the newborn to be fixed, when using this device, the medical staff only needs to hold and fix the hands and feet of the newborn, which can effectively reduce the labor intensity of the medical staff;

[0085] The inner side of the groove 120a, the outer side of the boss 120b and the top of the bottom plate 110 are all covered with a silicone pad to improve comfort. The silicone pad is a heat-conducting silicone pad. A heating mechanism is installed inside the silicone pad to heat the silicone pad. The heating mechanism includes but is not limited to circulating water heating and electric heating. The abdomen and sides of the newborn can be heated to prevent the newborn from getting cold during the lumbar puncture and thus causing diarrhea or other diseases that are not conducive to the growth of the newborn, thereby ensuring the health of the newborn;

[0086] There are two columns 130, which are detachably mounted on the top of the bottom plate 110 by bolts and distributed on both sides of the support platform 120. The two columns 130 are symmetrically arranged, and the columns 130 are vertically arranged on the top of the bottom plate 110. The top of the column 130 is detachably mounted on the top plate 130a by bolts.

[0087] The lead screw 140 is installed in the inner cavity of the column 130 and is arranged along the height direction of the column 130. The lower end of the lead screw 140 is connected to the bottom plate 110 through a bearing, and the upper end of the lead screw 140 passes through the top plate 130a and is connected to the top plate 130a through a bearing. The lead screw 140 can rotate in the inner cavity of the column 130;

[0088] A first connection hole 140a is provided at the top of the lead screw 140. The first connection hole 140a is a spline hole or a hexagonal hole. When the first connection hole 140a is a spline hole, a motor is detachably mounted on the top of the top plate 130a through bolts, and the lead screw 140 is driven to rotate by the motor. When the first connection hole 140a is a hexagonal hole, a hexagonal wrench is inserted into the first connection hole 140a, and the hexagonal wrench is manually driven to rotate to drive the rotation of the lead screw 140. The selection can be made according to the use requirements.

[0089] The lifting seat 150 is movably connected to the column 130 and is threadedly connected to the lead screw 140. The lead screw 140 drives the lifting seat 150 to move along the height direction of the column 130 on the column 130. The lifting seat 150 includes a frame 150a, a connecting block 150b, a first limiting plate 150c and a second limiting plate 150d.

[0090] The frame 150a is a side-lying n-shaped structure, and the frame 150a is clamped on the outside of the column 130. The outer wall of the frame 150a is detachably mounted with a connecting column 150a-1 by bolts. The connecting column 150a-1 has an outer cylindrical structure and is made of magnetic metal.

[0091] The connecting block 150b is integrally formed on the inner side of the frame 150a, and the connecting block 150b is plugged into the inner side of the column 130, and the connecting block 150b and the frame 150a form a side-lying M-shaped structure;

[0092] A threaded hole 150b-1 is formed through the top of the connection block 150b, and the threaded hole 150b-1 matches the lead screw 140. The connection block 150b is threadedly connected to the lead screw 140 through the threaded hole 150b-1. The rotation of the lead screw 140 can drive the connection block 150b to move up and down reciprocatingly along the height direction of the column 130 on the inner side of the column 130, and the connection block 150b drives the frame 150a to move up and down reciprocatingly along the height direction of the column 130 on the outer side of the column 130;

[0093] The first limiting plate 150c is integrally formed on the top rear side of the frame 150a, and a first sliding block 150c-1 is integrally formed on one side of the first limiting plate 150c facing the frame 150a;

[0094] The second limiting plate 150d is integrally formed on the bottom front side of the frame 150a, and a second sliding block 150d-1 is integrally formed on one side of the second limiting plate 150d facing the frame 150a;

[0095] The guide post assembly 200 includes a guide post 210, a first slide slot 220, a spring 230, a second slide slot 240 and a guide slot 250;

[0096] The first slide groove 220 is provided on the side of the guide column 210 and passes through the top of the guide column 210. The spring 230 is installed in the inner cavity of the first slide groove 220. The inner cavity side wall of the first slide groove 220 is inlaid with an electromagnet.

[0097] The second slide groove 240 is provided on the side of the guide column 210 away from the first slide groove 220. The second slide groove 240 is a long strip-shaped groove body with semicircular ends. The second slide groove 240 matches the connecting column 150a-1. The connecting column 150a-1 is inserted into the inner side of the second slide groove 240. The guide column 210 is connected to the connecting column 150a-1 through the second slide groove 240. The guide column 210 can be turned 0° and 90° on the connecting column 150a-1 through the second slide groove 240. The guide column 210 is arranged vertically or horizontally, and at the same time, the second slide groove 240 of the guide column 210 is pulled and moved on the connecting column 150a-1, so that the top end of the guide column 210 moves toward the direction close to the support platform 120 or away from the support platform 120. The inner side of the second slide groove 240 and the contact part of the end surface of the connecting column 150a-1 are installed with an electromagnet, and the guide column 210 is fixed by the cooperation of the electromagnet and the connecting column 150a-1;

[0098] There are two guide grooves 250, which are arranged one behind the other on the front and rear sides of the guide column 210, and are connected to the first slider 150c-1 and the second slider 150d-1 respectively.

[0099] When the guide post 210 is set vertically at 90°, the rear side of the guide post 210 contacts the first limit plate 150c, and the guide groove 250 set at the rear side of the guide post 210 is clamped on the first slider 150c-1. When the guide post 210 moves vertically up and down, the guide groove 250 cooperates with the first slider 150c-1 to guide the movement of the guide post 210, so that the guide post 210 can move vertically up and down;

[0100] When the guide post 210 is set at 0° in the longitudinal direction, the front side of the guide post 210 is released from the second limit plate 150d, and the guide groove 250 set at the front side of the guide post 210 is clamped on the second slider 150d-1. When the guide post 210 moves forward and backward in the longitudinal direction, the guide groove 250 cooperates with the second slider 150d-1 to guide the movement of the guide post 210, so that the guide post 210 can move forward and backward in the longitudinal direction;

[0101] The positioning assembly 300 includes a crossbar 310, a telescopic arm 320, a positioning plate 330 and a clamping mechanism 340;

[0102] The third slider 310a is detachably mounted on both ends of the cross bar 310 by bolts. The third slider 310a is inserted into the inner side of the first slide groove 220 and contacts the end of the spring 230. The cross bar 310 is connected to the guide column 210 through the cooperation of the third slider 310a and the first slide groove 220. The cross bar 310 can move between the two guide columns 210 along the height direction of the guide column 210 and gradually approach the human body. The third slider 310a is made of magnetic metal. The third slider 310a contacts the electromagnet installed on the inner side of the first slide groove 220, and fixes the cross bar 310 by magnetic force.

[0103] A second connection hole 310b is formed through the middle of the top of the crossbar 310, and the second connection hole 310b corresponds to the lumbar vertebra. First fixing ears 310c are symmetrically integrated on the left and right sides of the bottom of the crossbar 310;

[0104] The end of the telescopic arm 320 is movably connected to the first fixed ear 310c, and the telescopic arm 320 includes an upper arm 320a and a lower arm 320b;

[0105] One end of the upper arm 320a is reversibly connected to the first fixing ear 310c via an axle pin, and one end of the lower arm 320b is reversibly connected to an end of the upper arm 320a away from the first fixing ear 310c;

[0106] A water pipe is wound around the part of the positioning plate 330 that contacts the human body, and hot water flows in the water pipe. During the puncture process, the positioning plate 330 contacts the part of the human body that needs to be punctured, and the water pipe contacts the human body. The hot water flowing in the water pipe heats the human skin. Heating the part of the human body can reduce the pain during the puncture process, and prevent the newborn from becoming agitated due to the pain during the puncture process, which affects the success rate of the puncture, thereby effectively ensuring the success rate of the puncture.

[0107] A second fixing ear 330a is integrally formed on the outer circumferential wall of the positioning plate 330, and the second fixing ear 330a is flipably connected to an end of the lower arm 320b away from the upper arm 320a. The positioning plate 330 is connected to the cross bar 310 through the telescopic arm 320, and the positioning plate 330 corresponds to the second connecting hole 310b.

[0108] A positioning hole 330b is formed through the center of the top of the positioning plate 330, and the positioning hole 330b corresponds to the second connecting hole 310b;

[0109] When using it, first determine the body position for neonatal puncture;

[0110] When the baby is in the prone position, the guide post 210 is first flipped over so that the guide post 210 is vertically arranged and fixed by an electromagnet installed inside the second slide groove 240. Then, the lead screw 140 is rotated to drive the frame 150a to move upward, and the frame 150a drives the guide post 210 to move upward, and the guide post 210 drives the cross bar 310 to move upward, so as to reserve a space sufficient for placing the newborn. The newborn lies in the groove 120a in a prone position and is fixed by the lead screw 140 again. 140 drives the cross bar 310 to move downward, so that the positioning plate 330 is close to the lumbar vertebra, stops the rotation of the lead screw 140, adjusts the body position of the newborn, so that the lumbar vertebra that needs to be punctured corresponds to the positioning hole 330b, and after the adjustment is completed, releases the power supply of the electromagnet installed in the inner cavity of the second slide groove 240, releases the fixation of the guide column 210, and manually drives the guide column 210 to move downward until the positioning plate 330 contacts the human body, and then turns on the power supply of the electromagnet installed in the inner cavity of the second slide groove 240 to fix the guide column 210;

[0111] When the newborn is determined to be in a lateral position, first flip the guide post 210 so that the guide post 210 is arranged horizontally in the longitudinal direction and fixed by an electromagnet installed on the inner side of the second slide groove 240, and then rotate the lead screw 140 to drive the frame 150a to move downward, and the guide post 210 is driven downward by the frame 150a, and the cross bar 310 is driven downward by the guide post 210 so that the positioning plate 330 corresponds to the boss 120b, and the newborn is placed on the bottom plate 110 in a lateral position, with the abdomen of the newborn in contact with the boss 120b. At this time, the lead screw 140 is rotated to drive the frame 150a to move downward. The lead screw 140 drives the cross bar 310 to move toward the human body, and the cross bar 310 drives the positioning plate 330 to move toward the human body. When the positioning plate 330 moves to a position close to the human body, it stops moving, and the body position of the newborn is adjusted so that the position to be punctured corresponds to the positioning hole 330b. After the body position adjustment is completed, the power supply of the electromagnet installed in the inner cavity of the second slide groove 240 is released, and the fixation of the guide column 210 is released. The guide column 210 is manually driven to move until the positioning plate 330 contacts the human body, and then the power supply of the electromagnet installed in the inner cavity of the second slide groove 240 is turned on to fix the guide column 210.

[0112] The clamping mechanism 340 is movably connected to the crossbar 310, and the clamping mechanism 340 includes a moving plate 340a, a connecting rod 340b, a driving rod 340c and a guide rod 340d;

[0113] There are two movable plates 340a, one in front and one in the back, symmetrically placed on the front and rear sides of the crossbar 310;

[0114] One end of the connecting rod 340b is detachably connected to the moving plate 340a by bolts, and the other end of the connecting rod 340b passes through the cross bar 310 and is inserted into the inner side of the second connecting hole 310b. A fixing block 340b-1 is detachably installed on one end of the connecting rod 340b arranged inside the second connecting hole 310b by bolts. There are two fixing blocks 340b-1, which can be moved inside the second connecting hole 310b by being driven by the two moving plates 340a. When the two fixing blocks 340b-1 are put together, a rectangular groove is formed in the middle position.

[0115] The driving rod 340c is connected to the cross bar 310 through a bearing, and both ends of the driving rod 340c penetrate the cross bar 310 and are respectively threadedly connected to the two moving plates 340a;

[0116] The guide rod 340d is connected to the cross bar 310 via a spline or a flat key, and both ends of the guide rod 340d penetrate the cross bar 310 and are respectively connected to the two moving plates 340a, and the guide rod 340d is connected to the moving plates 340a via a linear bearing, and the driving rod 340c and the guide rod 340d are distributed on both sides of the second connecting hole 310b;

[0117] During specific use, the driving rod 340c is manually driven to rotate. The driving rod 340c is threadedly connected and drives the two movable plates 340a to move toward or oppositely under the limitation of the guide rod 340d. The movable plate 340a drives the two fixed blocks 340b-1 to move toward or oppositely to clamp the puncture needle assembly 400.

[0118] Example 3

[0119] See also Figure 1 and Figure 4-7 , the puncture needle assembly 400 includes a handle assembly 410, an adjustment mechanism 420, a sealing mechanism 430 and a puncture needle 440;

[0120] The handle assembly 410 is connected to the crossbar 310 through the fixing block 340b-1, and the handle assembly 410 includes a handle 410a, a thread groove 410b, a connecting groove 410c, a sealing groove 410d and a transition groove 410e;

[0121] The handle 410a is a rectangular parallelepiped handle. When puncturing, the handle 410a is placed between the two fixing blocks 340b-1, and the handle 410a is clamped by the two fixing blocks 340b-1. A drainage port 410a-1 is integrally formed on the outer wall of the handle 410a.

[0122] The thread groove 410b is opened at the middle position of the top of the handle 410a, and the length of the thread groove 410b accounts for half of the total length of the handle 410a;

[0123] The connecting groove 410c is provided at the middle position of the bottom of the handle 410a, and the connecting groove 410c is coaxially arranged with the thread groove 410b;

[0124] The sealing groove 410d is formed inside the handle 410a adjacent to the connecting groove 410c and is connected with the inner cavity of the connecting groove 410c;

[0125] The transition groove 410e is formed inside the handle 410a near the thread groove 410b and is connected to the thread groove 410b, the sealing groove 410d and the inner cavity of the drain port 410a-1 respectively;

[0126] The adjustment mechanism 420 is movably connected to the handle assembly 410, and the adjustment mechanism 420 includes a rotating rod 420a, a rotating handle 420b and an adjustment spring 420c;

[0127] An external thread 420a-1 is integrally formed on the circumferential outer wall of the rotary rod 420a, and the external thread 420a-1 matches the thread groove 410b. One end of the rotary rod 420a is installed in the inner cavity of the thread groove 410b through the external thread 420a-1, and the other end of the rotary rod 420a is arranged outside the handle 410a. The rotary rod 420a is rotated, and the rotary rod 420a adjusts the distance between the end of the rotary rod 420a inserted in the inner cavity of the thread groove 410b and the transition groove 410e under the cooperation of the external thread 420a-1 and the thread groove 410b.

[0128] The rotary handle 420b is integrally formed on the rotary rod 420a and is arranged on the end surface outside the handle 410a. An anti-slip groove is provided on the circumferential outer wall of the rotary handle 420b. The rotary handle 420b can be rotated to drive the rotary rod 420a to rotate, so as to adjust the distance between the end of the rotary rod 420a inserted into the inner cavity of the thread groove 410b and the transition groove 410e.

[0129] The adjusting spring 420c is disposed in the inner cavity of the rotating rod 420a, and one end of the adjusting spring 420c is in contact with a side of the rotating handle 420b facing the rotating rod 420a;

[0130] The sealing mechanism 430 is movably connected to the rotating rod 420a and is disposed in the inner cavity of the sealing groove 410d and the transition groove 410e. The sealing mechanism 430 includes a pressure rod 430a, a cylindrical plug 430b and a conical plug 430c.

[0131] One end of the pressure rod 430a is inserted into the inner cavity of the rotating rod 420a and contacts the end of the adjusting spring 420c away from the rotating handle 420b, and the other end of the pressure rod 430a is arranged outside the rotating rod 420a;

[0132] The cylindrical plug 430b is integrally formed on the end of the pressure rod 430a away from the adjustment spring 420c, and the cylindrical plug 430b is arranged in the inner cavity of the transition groove 410e. The outer diameter of the cylindrical plug 430b is smaller than the inner diameter of the transition groove 410e.

[0133] The conical plug 430c is integrally formed on the end of the cylindrical plug 430b away from the pressure rod 430a. The conical plug 430c is arranged in the inner cavity of the sealing groove 410d and contacts the inner cavity circumferential side wall of the sealing groove 410d. A sealing treatment is performed between the conical plug 430c and the sealing groove 410d.

[0134] The puncture needle 440 is provided with a pointed end and a flat end, the flat end is plugged into the inner side of the connecting groove 410c, the puncture needle 440 and the connecting groove 410c are connected by interference fit or threaded connection, so that the puncture needle 440 can be easily disassembled and assembled, and the puncture needle 440 is connected with the inner cavity of the sealing groove 410d;

[0135] When in use, the puncture needle 440 is inserted into the inner side of the connection groove 410c, the collection tube for collecting cerebrospinal fluid is installed on the discharge port 410a-1, the handle 410a is fixed by the fixing block 340b-1, the handle 410a is connected to the cross bar 310 through the fixing block 340b-1, the puncture needle 440 is connected to the cross bar 310 through the handle 410a, the tip of the puncture needle 440 corresponds to the positioning hole 330b, and the puncture needle 440 is fixed and installed. After the handle 420b is rotated The rotating rod 420a moves toward the inner side of the thread groove 410b under the cooperation of the threaded connection, and the adjusting spring 420c is compressed under the cooperation of the rotating handle 420b and the pressing rod 430a, and a pre-tightening force is applied to the adjusting spring 420c, and the pre-tightening force is slightly smaller than the pressure of the cerebrospinal fluid. The cross bar 310 is manually driven to move toward the human body, and the cross bar 310 drives the third slider 310a to move and compress the spring 230. The elastic force of the spring 230 provides a reaction force to avoid the appearance of too fast needle insertion. The fixing block 340b-1 is driven by the cross bar 310 to move toward the human body, and the puncture needle 440 is driven by the fixing block 340b-1 to move toward the human body. The puncture needle 440 penetrates into the human body through the positioning hole 330b. After the puncture needle 440 enters the human body, the cerebrospinal fluid enters the inner cavity of the sealing groove 410d through the puncture needle 440. The conical plug 430c is driven away from the sealing groove 410d by the pressure of the cerebrospinal fluid. 0d, a gap is formed between the conical plug 430c and the sealing groove 410d, which is connected with the transition groove 410e. The cerebrospinal fluid enters the inner cavity of the transition groove 410e through the gap between the conical plug 430c and the sealing groove 410d, and enters the interior of the test tube through the drainage port 410a-1 to collect the cerebrospinal fluid. During the whole process, the cerebrospinal fluid will not come into contact with the air of the external environment, which can effectively avoid the contamination of the cerebrospinal fluid by pathogens in the external environment, and ensure the accuracy of the later cerebrospinal fluid test results;

[0136] During the process of collecting cerebrospinal fluid, medical staff are required to observe the test tube all the time, especially in the early stage of collection. When a large amount of cerebrospinal fluid flows into the test tube, medical staff need to quickly rotate the handle 420b. The handle 420b rotates the compression adjustment spring 420c to apply pressure to the pressure rod 430a to drive the conical plug 430c into the sealing groove 410d, thereby blocking the circulation of cerebrospinal fluid and avoiding the outflow of a large amount of cerebrospinal fluid due to excessive intracranial pressure, thereby causing brain herniation, thereby ensuring safety during the operation.

[0137] Example 5

[0138] In order to further ensure intraoperative safety and avoid brain herniation, the device is also equipped with a motor and flow rate sensor;

[0139] The motor is installed on the crossbar 310, and the output shaft of the motor is equipped with a driving wheel, which is connected to the rotary handle 420b. The output shaft on the motor drives the driving wheel to rotate, and the rotary handle 420b is driven to rotate by the driving wheel. The connection between the driving wheel and the rotary handle 420b includes but is not limited to a belt connection and a gear connection, and can be autonomously rotated according to actual needs;

[0140] A flow rate sensor is installed at the discharge port 410a-1, and is used to measure the flow rate of cerebrospinal fluid entering the test tube. The flow rate sensor is electrically connected to the motor through the controller. The flow rate sensor transmits the flow rate of the cerebrospinal fluid to the controller in real time. When the flow rate of the cerebrospinal fluid is too fast, the motor is started by the controller, and the output shaft on the motor drives the driving wheel to rotate. The driving wheel drives the rotary handle 420b to rotate the compression adjustment spring 420c to apply pressure to the pressure rod 430a to drive the conical plug 430c to enter the sealing groove 410d, thereby blocking the circulation of cerebrospinal fluid and avoiding the outflow of a large amount of cerebrospinal fluid due to excessive intracranial pressure, thereby causing brain herniation. The sensor can react quickly, thereby being able to timely block the outflow of cerebrospinal fluid, further ensuring safety during the operation.

[0141] Example 5

[0142] The control system includes an acquisition module, a storage module, a processing module and a control module;

[0143] The acquisition module is used to acquire pressure data and temperature data of the neonate when it is under pressure, the storage module stores comparison data for comparison, the processing module is electrically connected to the acquisition module and the storage module respectively, and is used to compare the acquired data with the stored comparison data and output the comparison result, and the control module is electrically connected to the processing module, and is used to receive the comparison result output by the processing module and output a control signal according to the comparison result;

[0144] The acquisition module includes a temperature sensor and a pressure sensor. The pressure sensor is installed on the part of the boss 120b that contacts the human body and is used to collect the pressure between the human body and the boss 120b. The temperature sensor is installed on the part of the positioning plate 330 that contacts the human body and is used to collect the temperature of the heated part of the human body to avoid burns.

[0145] The control system includes the following specific operation steps:

[0146] The temperature data is set to T0 and the pressure data is set to P0 through the storage module. The temperature data collected by the temperature sensor is T1 and the pressure data collected by the pressure sensor is P1.

[0147] When T0<T1<1.0723×T0, the temperature is within the range that the human body can bear, and will not cause damage to the human body, and will remain unchanged and continue;

[0148] When 1.0723×T0<T1<2.0140×T0, the temperature is high and may cause damage to the human body. At this time, the medical staff evaluates the completion time of the operation. When the collection of cerebrospinal fluid can be completed within 10-12 minutes, no change is made and the operation is continued until the entire operation is completed. When the evaluation time exceeds 12 minutes, it is necessary to adjust the flow rate of the water flow in the pipe installed on the positioning plate 330 to 1.2-1.5 times the original speed or stop supplying water to the pipe to achieve the purpose of temperature regulation. Until the temperature drops to T0<T1<1.0723×T0, water is supplied or the water flow rate is adjusted back to the original speed;

[0149] When 2.0140×T0<T1<2.573×T0, the temperature is extremely high and is likely to cause damage to the human body. At this time, the water supply should be stopped immediately, and the heating part should be treated by physical cooling to avoid or reduce damage to the human body.

[0150] When 0.759×P0<P1<1.253×P0, the pressure on the abdomen is just right and will not squeeze the internal organs and cause damage to the human body. The operation will continue until the operation is completed and a sufficient amount of cerebrospinal fluid is collected;

[0151] When 0.389×P0<P1<0.759×P0, the pressure on the abdomen is insufficient and the newborn cannot be effectively fixed. During the puncture process, the stimulation caused by the pain may cause the newborn to be agitated and affect the puncture effect. Adjustments need to be made until the pressure on the abdomen can reach 0.759×P0<P1<1.253×P0;

[0152] When 1.253×P0<P1<2.046×P0, the pressure on the abdomen is too high, which may cause damage to the human body. At this time, if puncture has not been performed or the time left to the completion of the operation is more than 15 minutes, adjustments are required until the pressure on the abdomen can reach 0.759×P0<P1<1.253×P0. When the operation can be completed within 7-9 minutes, no adjustments are made until the operation is completed. When the operation is completed within 9-15 minutes, medical staff need to judge whether to make adjustments or continue the operation based on the reaction of the human body on site.

[0153] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A neonatal lumbar puncture needle device, characterized in that: include: Base (100); A guide column assembly (200), the guide column assembly (200) being symmetrically arranged on the base (100) and rotatably connected to the base (100), the guide column assembly (200) being capable of rotating 0° and 90°, the newborn being placed on the base (100) in a side-lying or prone position, the newborn being between two guide column assemblies (200); A positioning assembly (300), wherein the positioning assembly (300) is connected to the guide column assembly (200) in a lifting manner, and the positioning assembly (300) moves between the two guide column assemblies (200) and contacts the skin of the lumbar spine of the newborn; A puncture needle assembly (400), wherein the puncture needle assembly (400) is connected to the positioning assembly (300), and the puncture needle assembly (400) is driven by the positioning assembly (300) to move to perform lumbar puncture; A control system is installed on the base (100).

2. A neonatal lumbar puncture needle device according to claim 1, characterized in that: The base (100) comprises: A bottom plate (110); A support platform (120), the support platform (120) being arranged at a middle position on the top of the base plate (110), and the newborn is fixed on the support platform (120) in a side-lying or prone position; Columns (130), the columns (130) are symmetrically arranged on the top of the base plate (110) and distributed on both sides of the support platform (120); A lead screw (140), the lead screw (140) being rotatably connected to the column (130); A lifting seat (150) is connected to the column (130) in a lifting manner and is movably connected to the lead screw (140).

3. A neonatal lumbar puncture needle device according to claim 2, characterized in that: The top of the support platform (120) is provided with a groove (120a), and the newborn is fixed inside the groove (120a) in a prone position; The side of the support platform (120) is provided with a side of a boss (120b), and the newborn is in contact with the boss (120b) in a side-lying posture.

4. A neonatal lumbar puncture needle device according to claim 2, characterized in that: The lifting seat (150) comprises: A frame (150a), wherein a connecting column (150a-1) is provided on a side surface of the frame (150a); A connecting block (150b), the connecting block (150b) being arranged on the inner side of the frame (150a), a threaded hole (150b-1) being provided through the top of the connecting block (150b), and the connecting block (150b) being connected to the lead screw (140) via the threaded hole (150b-1); A first limiting plate (150c), the first limiting plate (150c) being arranged on a side surface of the frame (150a), and a first sliding block (150c-1) being arranged on a side wall of the first limiting plate (150c); A second limiting plate (150d), wherein the second limiting plate (150d) is arranged at the bottom of the frame (150a), and a second sliding block (150d-1) is arranged at the top of the second limiting plate (150d).

5. A neonatal lumbar puncture needle device according to claim 4, characterized in that: The guide column assembly (200) comprises: A guide column (210); A first slide groove (220), wherein the first slide groove (220) is provided on a side surface of the guide column (210) and passes through a top of the guide column (210); a spring (230), wherein the spring (230) is arranged on the inner side of the first sliding groove (220); A second slide groove (240), wherein the second slide groove (240) is disposed on a side of the guide column (210) away from the first slide groove (220); A guide groove (250) is provided on both the front and rear sides of the guide column (210).

6. A neonatal lumbar puncture needle device according to claim 1, characterized in that: The positioning assembly (300) comprises: A cross bar (310), wherein a second connection hole (310b) is provided through the middle of the top of the cross bar (310), and a first fixing ear (310c) is symmetrically provided at the bottom of the cross bar (310); a telescopic arm (320), the telescopic arm (320) being movably connected to the first fixing ear (310c); a positioning plate (330), the positioning plate (330) being connected to an end of the telescopic arm (320) away from the cross bar (310), the positioning plate (330) corresponding to the second connecting hole (310b), and the distance between the positioning plate (330) and the cross bar (310) being adjusted by the telescopic arm (320); A clamping mechanism (340), wherein the clamping mechanism (340) is movably connected to the cross bar (310), and the clamping mechanism (340) comprises a movable plate (340a), a connecting rod (340b), a driving rod (340c) and a guide rod (340d), wherein the movable plate (340a) is arranged on the outer side of the cross bar (310), and the connecting rod (340b) is connected to the movable plate (340a) and passes through the cross bar (310) and is inserted into the inner side of the second connecting hole (310b), and the movable plate (340a) is arranged on the outer side of the cross bar (310), and the connecting rod (340b) is connected to the movable plate (340a) and passes through the cross bar (310) and is inserted into the inner side of the second connecting hole (310b). A fixing block (340b-1) is provided at the end of the connecting rod (340b), and the fixing block (340b-1) is provided on the inner side of the second connecting hole (310b); the driving rod (340c) is movably connected to the cross bar (310) and passes through both sides of the cross bar (310) and is threadedly connected to the movable plate (340a); the guide rod (340d) is movably connected to the cross bar (310) and passes through both sides of the cross bar (310) and is movably connected to the movable plate (340a).

7. A neonatal lumbar puncture needle device according to claim 1, characterized in that: The puncture needle assembly (400) comprises: A handle assembly (410), the handle assembly (410) comprising a handle (410a), a thread groove (410b), a connecting groove (410c), a sealing groove (410d) and a transition groove (410e), the thread groove (410b) being arranged at the top of the handle (410a), the connecting groove (410c) being arranged at the bottom of the handle (410a), the sealing groove (410d) being arranged inside the handle (410a) and being interlinked with the connecting groove (410c), the transition groove (410e) being arranged inside the handle (410a) and being interlinked with the thread groove (410b) and the sealing groove (410d) respectively, and a liquid discharge port (410a-1) being arranged on the side wall of the handle (410a), and the liquid discharge port (410a-1) being interlinked with the transition groove (410e); an adjusting mechanism (420), the adjusting mechanism (420) being movably connected to the thread groove (410b); a sealing mechanism (430), the sealing mechanism (430) being connected to the adjusting mechanism (420) and being disposed in the inner cavity of the sealing groove (410d) and the transition groove (410e), the sealing mechanism (430) cooperating with the sealing groove (410d) to block the passage between the sealing groove (410d) and the transition groove (410e); A puncture needle (440), wherein the puncture needle (440) is detachably connected to the connection groove (410c).

8. A neonatal lumbar puncture needle device according to claim 7, characterized in that: The adjustment mechanism (420) comprises: A rotating rod (420a), wherein an external thread (420a-1) is provided on an outer circumferential wall of the rotating rod (420a), and the external thread (420a-1) is connected to the thread groove (410b); A rotating handle (420b), wherein the rotating handle (420b) is arranged at the end of the rotating rod (420a) and outside the handle (410a); An adjusting spring (420c), wherein the adjusting spring (420c) is arranged in the inner cavity of the rotating rod (420a) and is in contact with the rotating handle (420b).

9. A neonatal lumbar puncture needle device according to claim 8, characterized in that: The sealing mechanism (430) comprises: A pressure rod (430a), the end of which is inserted into the inner cavity of the rotating rod (420a) and in contact with the adjusting spring (420c); A cylindrical plug (430b), wherein the cylindrical plug (430b) is arranged at the other end of the pressure rod (430a) and is arranged on the outside of the rotating rod (420a); A conical plug (430c), wherein the conical plug (430c) is arranged at the end of the cylindrical plug (430b).

10. A neonatal lumbar puncture needle device according to claim 1, characterized in that: The control system comprises: A collection module, the collection module is used to collect pressure data and temperature data of the newborn when it is under pressure; A storage module, wherein the storage module stores comparison data used for comparison; A processing module, the processing module is electrically connected to the acquisition module and the storage module respectively, and is used to compare the acquired data with the stored comparison data and output the comparison result; A control module is electrically connected to the processing module and is used to receive the comparison result output by the processing module and output a control signal according to the comparison result.

Images