Craniotomy suction device for establishing craniocerebral knocking injury model

Abstract

The invention discloses a craniotomy suction device for establishing a craniocerebral knocking injury model, which relates to the field of craniocerebral suction and comprises a base plate, an outer cover box arranged at the top of the base plate, and a plurality of creeping pump suction devices arranged on the base plate in a linear array and positioned in the outer cover box, and the power device is arranged on the base plate and is used for driving the plurality of creep pump suction devices to work. According to the suction device, simultaneous accurate flow control extraction of abnormal liquid in multiple target craniocerebral parts can be achieved, meanwhile, the extracted liquid can be shot to obtain pictures, sample extraction can be conducted on the extracted liquid, and later data analysis and craniocerebral knocking injury model establishment are facilitated.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of cranial aspiration, and specifically provides a craniotomy suction device for establishing a cranial blast injury model. Background Technique

[0002] The establishment of a cranial blast injury model using animal experiments is beneficial to revealing the mechanism of cranial blast injury, providing theoretical parameters for the evaluation of cranial blast injury, and is also of great significance for the development of treatment strategies. After cranial blast, brain injury often occurs, resulting in cerebral hemorrhage or effusion. The aspiration of abnormal intracranial fluid is beneficial to the restoration of normal intracranial pressure. At the same time, sampling and analysis of the intracranial aspirate are beneficial to obtaining data related to cranial injury, so as to establish a cranial blast injury model.

[0003] The suction device in the prior art includes a drainage tube, an installation cavity and a drainage cavity are opened in the drainage tube, and both ends of the drainage tube are respectively connected to a liquid accumulation box and a puncture part. A suction pump is installed on the liquid accumulation box, and further includes: a clogging clearing mechanism, the clogging clearing mechanism includes a driving component and a clogging clearing module, the driving component includes a sliding part, a connecting part and a moving part, and the clogging clearing module is fixed at one end of the moving part. This suction device changes the air pressure in the liquid accumulation box by driving the suction pump, so that a negative pressure is formed in the liquid accumulation box. The negative pressure drains the intracranial fluid in the brain into the liquid accumulation box through the drainage tube; by driving the clogging clearing mechanism with negative pressure, the blockage in the drainage cavity can be broken and cleared, improving the drainage effect of the drainage device, reducing the secondary injury to the patient, and increasing the success rate of fluid drainage.

[0004] The drainage device in the prior art can break and clear the blockage in the drainage cavity, improving the drainage effect of the drainage device, but it cannot achieve precise flow control during the suction process and obtain drainage fluid samples. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a craniotomy suction device for establishing a cranial blast injury model to solve the technical problems raised in the above background technique.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a craniotomy suction device for establishing a craniocerebral blast injury model, comprising a base plate, an outer cover box arranged on the top of the base plate, a plurality of peristaltic pump suction devices arranged in a linear array on the base plate and located in the outer cover box, and a power device arranged on the base plate and used to drive the plurality of peristaltic pump suction devices to work, the peristaltic pump suction device comprising a peristaltic pump housing whose outer wall is connected to the upper surface of the base plate through a bracket, a liquid suction switching component and a liquid discharge switching component arranged on the outer wall of the peristaltic pump housing and whose outer wall passes through the outer cover box and extends to the outside of the outer cover box, a plurality of delivery pipes arranged in the peristaltic pump housing, a rotating frame rotatably connected to the inner wall of the peristaltic pump housing, and pressure wheels symmetrically arranged at both ends of the rotating frame and abutting against the delivery pipes, one end of the delivery pipe is connected to the liquid suction switching component, and the other end is connected to the liquid discharge switching component; The liquid discharge end of the liquid discharge switching component is provided with a liquid discharge box and a sampling box, and the outer wall of the outer cover box is provided with a sampling accommodating device corresponding to the position of the sampling box; The power device comprises a driving shaft arranged on the base plate, and a plurality of speed-changing and adjusting components arranged on the driving shaft, wherein the speed-changing and adjusting components are used to drive the rotating frame to rotate.

[0007] Preferably, the drainage switching component includes a positioning box arranged on the outer wall of the peristaltic pump housing, a plurality of first drainage holes and a second drainage hole penetrated through the outer wall of the positioning box, a plurality of infusion sliders slidably connected to the inner wall of the positioning box, two electromagnetic blocks symmetrically embedded at the top and bottom of the infusion slider, and two magnetic blocks symmetrically arranged in the positioning box and located at the upper and lower parts of the electromagnetic blocks, the infusion slider is connected to the delivery tube, the plurality of the first drainage holes are all connected to the drainage box, and the plurality of the second drainage holes are all connected to the sampling box; The structure of the suction switching component is the same as that of the discharge switching component, and the outer wall of the positioning box in the suction switching component is provided with a suction box and an air box. In this preferred embodiment, the discharge switching component facilitates the switching of the discharge end of the delivery tube between the sampling state and the discharge state, and the suction switching component facilitates the switching of the suction end of the delivery tube between the suction state and the idle state. The fewer the delivery tubes in the idle state, the greater the suction volume of the rotating frame when it rotates one circle.

[0008] Preferably, the speed adjustment component includes a first tapered roller sleeved on the outer wall of the driving shaft, a second tapered roller connected to the rotating frame at one end through a connecting rod, a transmission belt arranged between the first tapered roller and the second tapered roller, and a paddle assembly arranged on the base plate and used to paddle the transmission belt, and the first tapered roller and the second tapered roller are symmetrically arranged. In this preferred embodiment, the speed adjustment component is used to facilitate the adjustment of the rotation speed of the rotating frame, so as to facilitate the adjustment of the suction volume.

[0009] Preferably, the toggle assembly includes a vertical plate arranged on the base plate, a linear module arranged horizontally on the outer wall of the vertical plate, two toggle frames symmetrically arranged at the execution end of the linear module, two horizontal plates symmetrically arranged in the toggle frame, and two abutment wheels symmetrically arranged on the outer wall of the horizontal plate, and the transmission belt is located between the two abutment wheels. In this preferred embodiment, the toggle assembly is used to achieve stepless adjustment of the transmission ratio to achieve stepless adjustment of the rotation speed of the rotating frame.

[0010] Preferably, a backwashing component is further included, wherein the backwashing component includes a first backwashing pipe having one end connected to the sampling box and a second backwashing pipe having one end connected to the air box. In this preferred embodiment, the backwashing component facilitates backwashing and cleaning of the inside of the peristaltic pump suction device.

[0011] Preferably, it also includes a suction liquid photographing component, which includes an outer cover plate sleeved on the outer wall of the delivery tube and connected to the outer wall of the positioning box at one end and the outer wall of the peristaltic pump housing at the other end, and a camera disposed in the outer cover plate. In this preferred embodiment, the suction liquid photographing component is used to facilitate the acquisition of image information of the suction liquid, so as to use it as image data for the establishment of a craniocerebral blast injury model in the later stage.

[0012] Preferably, the sampling and containing device comprises a sampling tube with one end connected to the sampling box, a positioning frame arranged on the outer wall of the outer cover box, a conversion component arranged at the bottom of the positioning frame and having an execution end passing through the positioning frame and extending to the upper part of the positioning frame, and a plurality of sample tubes arranged at the execution end of the conversion component. In this preferred embodiment, the sampling and containing device facilitates the storage of the extracted liquid sample, so as to facilitate the analysis of the sample at a later time, and the data obtained by the analysis is helpful for the establishment of a craniocerebral blast injury model.

[0013] Preferably, the conversion component includes a stepper motor disposed at the bottom of the positioning frame and having an execution end that passes through the positioning frame and extends to the upper part of the positioning frame, a rotating disk disposed at the execution end of the stepper motor, and a plurality of placement holes in an annular array that pass through the rotating disk, the placement holes being used to place sample tubes. In this preferred embodiment, stable switching of sample tubes is achieved through the conversion component.

[0014] Preferably, it further comprises a plurality of suction positioning devices arranged on the base plate, the plurality of suction positioning devices correspond to the plurality of peristaltic pump suction devices in one-to-one position, the suction positioning device comprises a mechanical arm arranged on the base plate, and a suction needle tube arranged at the execution end of the mechanical arm, the suction needle tube is connected to the suction box through a pipeline. In this preferred embodiment, the stable movement of the suction needle tube is achieved by the suction positioning device.

[0015] Preferably, it also includes a plurality of cranial positioning devices arranged on the base plate, the plurality of cranial positioning devices correspond to the plurality of suction positioning devices in one-to-one position, the cranial positioning device includes a power turntable arranged on the base plate, a square plate vertically arranged on the top of the power turntable, a power motor arranged on the outer wall of the square plate and having an execution end passing through the square plate, a cranial fixing ring detachably connected to the execution end of the power motor, and a plurality of positioning pins passing through the cranial fixing ring and threadedly connected to the cranial fixing ring. In this preferred embodiment, the cranial positioning device is used to achieve stable fixation of the cranial brain to be suctioned.

[0016] In summary, the present invention mainly has the following beneficial effects: The suction device of the present invention can realize the simultaneous and precise flow control extraction of multiple target abnormal fluids in the cranial brain, and can also take pictures of the extracted fluid to obtain images, and can extract samples from the extracted fluid, so as to facilitate the later analysis of data to establish a craniocerebral blast injury model; The suction device of the present invention realizes stable fixation of the brain to be sucked through the brain positioning device, realizes stable movement of the suction needle tube through the suction positioning device, realizes stable suction through the peristaltic pump suction device, and realizes stable control of the suction flow through the power device; In the peristaltic pump suction device, the discharge switching component is used to facilitate the switching of the discharge end of the delivery tube between the sampling state and the discharge state, and the suction switching component is used to facilitate the switching of the suction end of the delivery tube between the suction state and the idle state. The fewer the delivery tubes in the idle state, the greater the suction volume of the rotating frame when the rotating frame rotates one circle. The suction liquid shooting component is used to facilitate the acquisition of image information of the suction liquid, so as to facilitate the establishment of a craniocerebral blast injury model as image data in the later stage. The backwashing component is used to facilitate the backwashing and cleaning of the inside of the peristaltic pump suction device; The speed adjustment component in the power device is used to adjust the rotation speed of the rotating frame, so as to adjust the suction volume. The transmission ratio is adjusted steplessly by the toggle assembly to achieve stepless adjustment of the rotating speed of the rotating frame. The sampling and containing device facilitates the storage of the extracted liquid samples, so as to facilitate the analysis of the samples at a later time. The data obtained from the analysis is helpful for establishing a craniocerebral blast injury model, and the stable switching of the sample tubes is achieved through the conversion component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an axonometric diagram of the overall structure of the attraction device of the present invention; Figure 2 It is an exploded view of the overall structure of the attraction device of the present invention; Figure 3 It is an axonometric view of the structure of the peristaltic pump suction device of the present invention; Figure 4 It is an axonometric diagram of the structure of the peristaltic pump suction device and the power device of the present invention; Figure 5 It is an exploded view of the structure of the peristaltic pump suction device of the present invention; Figure 6 It is an exploded view of the structure of the liquid discharge switching component of the present invention; Figure 7 It is a top view of the overall structure of the attraction device of the present invention; Figure 8 It is a cross-sectional view of the overall structure of the attraction device of the present invention; Figure 9 It is a cross-sectional view of the power device structure of the present invention; Figure 10 This is an enlarged view of the structure at A of the present invention; Figure 11 It is an enlarged view of the structure at B of the present invention.

[0018] Description of the drawings: 10, base plate; 11, outer cover box; 20, peristaltic pump suction device; 201, drainage box; 202, sampling box; 21, peristaltic pump housing; 22, suction switching component; 221, suction box; 222, air box; 23, drainage switching component; 231, positioning box; 2311, first drainage hole; 2312, second drainage hole; 232, infusion slider; 233, electromagnetic block; 234, magnetic block; 24, delivery pipe; 25, rotating frame; 26, pressure wheel; 27, backwashing component; 271, first backwashing pipe; 272, second backwashing pipe; 28, suction liquid shooting component; 281, outer cover plate; 282, camera; 30, power device ; 31. driving shaft; 32. speed adjustment component; 321. first conical roller; 322. second conical roller; 323. transmission belt; 324. toggle assembly; 3241. vertical plate; 3242. linear module; 3243. toggle frame; 3244. horizontal plate; 3245. abutment wheel; 40. sampling accommodating device; 41. sampling tube; 42. positioning frame; 43. conversion component; 431. stepping motor; 432. rotating disk; 44. sample tube; 50. suction positioning device; 51. mechanical arm; 52. suction needle tube; 60. cranial positioning device; 61. power turntable; 62. square plate; 63. power motor; 64. cranial fixing ring; 65. positioning pin. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure. Example

[0021] Please refer to the attached Figure 1 ,2 As shown in FIGS. 6 and 7, in a preferred embodiment of the present invention, a craniotomy suction device for establishing a craniocerebral blast injury model includes a base plate 10, an outer cover box 11 provided on the top of the base plate 10, a plurality of peristaltic pump suction devices 20 linearly arrayed on the base plate 10 and located inside the outer cover box 11, and a power device 30 provided on the base plate 10 and used to drive the plurality of peristaltic pump suction devices 20 to work. The sampling and accommodating device 40 includes a sampling tube 41 with one end communicating with the sampling box 202, a positioning frame 42 provided on the outer wall of the outer cover box 11, a conversion component 43 provided at the bottom of the positioning frame 42 and with its execution end passing through the positioning frame 42 and extending to the upper part of the positioning frame 42, and a plurality of sample tubes 44 provided at the execution end of the conversion component 43. The conversion component 43 includes a stepping motor 431 provided at the bottom of the positioning frame 42 and with its execution end passing through the positioning frame 42 and extending to the upper part of the positioning frame 42, a rotating disk 432 provided at the execution end of the stepping motor 431, and a plurality of placement holes annularly arrayed through the rotating disk 432. The placement holes are used to place the sample tubes 44. It also includes a plurality of suction positioning devices 50 provided on the base plate 10. The plurality of suction positioning devices 50 correspond to the plurality of peristaltic pump suction devices 20 in position one by one. The suction positioning device 50 includes a robotic arm 51 provided on the base plate 10, and a suction needle tube 52 provided at the execution end of the robotic arm 51. The suction needle tube 52 is communicated with the suction box 221 through a pipeline. It further includes a plurality of craniocerebral positioning devices 60 provided on the base plate 10. The plurality of craniocerebral positioning devices 60 correspond to the plurality of suction positioning devices 50 in position one by one. The craniocerebral positioning device 60 includes a power turntable 61 provided on the base plate 10, a square plate 62 vertically provided on the top of the power turntable 61, a power motor 63 provided on the outer wall of the square plate 62 and with its execution end passing through the square plate 62, a craniocerebral fixing ring 64 detachably connected to the execution end of the power motor 63, and a plurality of positioning pins 65 passing through the craniocerebral fixing ring 64 and threadedly connected to the craniocerebral fixing ring 64.

[0022] It should be noted that in this embodiment, after the animal undergoes a craniocerebral blast experiment, it is necessary to aspirate the abnormal liquid in the cranium. After drilling the cranium, the cranium is fixed through the craniocerebral positioning device 60. The execution end of the suction positioning device 50 enters the cranium according to the set route, and the peristaltic pump suction device 20 is turned on for suction work. During suction, the power device 30 can simultaneously and precisely adjust the suction flow rates of the plurality of peristaltic pump suction devices 20. When the drainage end of the peristaltic pump suction device 20 switches to the sampling state, the sampling and accommodating device 40 can store the suction liquid samples. Further, when the cranial positioning device 60 is working, manually cover the cranial fixation ring 64 outside the animal skull, rotate the positioning pin 65, and the positioning pin 65 abuts against the skull for fixation. After completion, install the cranial fixation ring 64 on the execution end of the power motor 63. Place the animal body on the power turntable 61. The motor drives the power turntable 61 to rotate, which can drive the entire animal body to rotate. The execution end of the power motor 63 drives the cranial fixation ring 64 to rotate to drive the animal skull for angle adjustment; Further, when the suction positioning device 50 is working, the execution end of the robotic arm 51 drives the suction syringe 52 to move; Further, when the sampling accommodating device 40 is working, the execution end of the stepping motor 431 drives the rotating disk 432 to rotate, and the rotating disk 432 drives the sample tubes 44 to pass by the sampling tube 41 one by one. Multiple sample tubes 44 can respectively receive the sample liquid discharged from the sampling tube 41.

[0023] Please refer specifically to the appendix Figure 2 、 3, as shown in Figures 4, 5, 6, 8, and 10, in another preferred embodiment of the present invention, the peristaltic pump suction device 20 includes a peristaltic pump housing 21 whose outer wall is connected to the upper surface of the base plate 10 through a bracket, a liquid suction switching component 22 and a liquid discharge switching component 23 provided on the outer wall of the peristaltic pump housing 21 and whose outer walls penetrate through the outer cover box 11 and extend to the outside of the outer cover box 11, a plurality of conveying pipes 24 provided in the peristaltic pump housing 21, a rotating frame 25 rotatably connected to the inner wall of the peristaltic pump housing 21, and pressing wheels 26 symmetrically provided at both ends of the rotating frame 25 and abutting against the conveying pipes 24. One end of the conveying pipe 24 communicates with the liquid suction switching component 22, and the other end communicates with the liquid discharge switching component 23; a liquid discharge box 201 and a sampling box 202 are provided at the liquid discharge end of the liquid discharge switching component 23, and a sampling accommodating device 40 corresponding to the position of the sampling box 202 is provided on the outer wall of the outer cover box 11; the liquid discharge switching component 23 includes a positioning box 231 provided on the outer wall of the peristaltic pump housing 21, a plurality of first liquid discharge holes 2311 and second liquid discharge holes 2312 penetrating through the outer wall of the positioning box 231, a plurality of liquid infusion sliders 232 slidably connected to the inner wall of the positioning box 231, two electromagnetic blocks 233 symmetrically embedded at the top and bottom of the liquid infusion sliders 232, and two magnetic blocks 234 symmetrically provided in the positioning box 231 and located above and below the electromagnetic blocks 233. The liquid infusion slider 232 communicates with the conveying pipe 24, and a plurality of the first liquid discharge holes 2311 all communicate with the liquid discharge box 201, and a plurality of the second liquid discharge holes 2312 all communicate with the sampling box 202; the liquid suction switching component 22 has the same structure as the liquid discharge switching component 23. An inhalation box 221 and an air box 222 are provided on the outer wall of the positioning box 231 in the liquid suction switching component 22. It further includes an anti-flushing component 27. The anti-flushing component 27 includes a first anti-flushing pipe 271 with one end communicating with the sampling box 202 and a second anti-flushing pipe 272 with one end communicating with the air box 222. It further includes a suction liquid photographing component 28. The suction liquid photographing component 28 includes an outer cover plate 281 sleeved on the outer wall of the conveying pipe 24 and connected to the outer wall of the positioning box 231 at one end and the outer wall of the peristaltic pump housing 21 at the other end, and a camera 282 provided in the outer cover plate 281.

[0024] It should be noted that in this embodiment, when the peristaltic pump suction device 20 works, the execution end of the power device 30 drives the rotating frame 25 to rotate. The rotation of the rotating frame 25 drives the pressing wheel 26 to squeeze the conveying pipe 24 to generate a suction effect, and the faster the rotating speed of the rotating frame 25, the greater the suction volume per unit time; During normal suction, the liquid in the skull is discharged through the suction needle tube 52, the inhalation box 221, the liquid suction switching component 22, the conveying pipe 24, the liquid infusion slider 232, the first liquid discharge hole 2311, and the liquid discharge box 201; When adjusting the flow rate by changing the number of the delivery pipes 24 in the working state, the liquid suction switching member 22 can switch the suction ends of one or more delivery pipes 24 to communicate with the air box 222, that is, the delivery pipes 24 can be switched from the pumping working state to the idle state; When sampling, the liquid discharge switching member 23 switches the liquid discharge ends of any one or more delivery pipes 24 to communicate with the sampling box 202, and the sampling work can be started; Both the first backwashing pipe 271 and the second backwashing pipe 272 can be connected to the backwashing liquid supply system. During backwashing, after the suction ends of all the delivery pipes 24 are switched to communicate with the air box 222, the valve of the air pipe on the air box 222 is closed, and the backwashing liquid supply system is started. The backwashing liquid enters through the second backwashing pipe 272, and backwashing can be carried out. After the suction ends of all the delivery pipes 24 are switched to communicate with the sampling box 202, the valve on the sampling pipe 41 is closed, and the backwashing liquid enters through the first backwashing pipe 271, and backwashing can be carried out; Furthermore, the camera 282 can capture the image information of the suction liquid passing through the pipeline and upload the image information to the controller; Furthermore, the working principle of the liquid suction switching member 22 is the same as that of the liquid discharge switching member 23. Taking the working of the liquid discharge switching member 23 as an example, the electromagnetic block 233 is energized to generate an attractive force or a repulsive force of the opposite or the same polarity as the magnetic block 234. The infusion slider 232 moves under the action of the attractive force or the repulsive force, so that the infusion slider 232 communicates with the first liquid discharge hole 2311 or the second liquid discharge hole 2312. When the infusion slider 232 communicates with the second liquid discharge hole 2312, the body of the infusion slider 232 blocks the first liquid discharge hole 2311.

[0025] Please refer specifically to the appendix Figure 3 、 4As shown in Figures 8, 9, and 11, in another preferred embodiment of the present invention, the power device 30 includes a driving shaft 31 disposed on the base plate 10, and a plurality of speed adjustment components 32 disposed on the driving shaft 31, the speed adjustment component 32 is used to drive the rotating frame 25 to rotate, and the speed adjustment component 32 includes a first conical roller 321 sleeved on the outer wall of the driving shaft 31, a second conical roller 322 connected to the rotating frame 25 at one end through a connecting rod, a transmission belt 323 disposed between the first conical roller 321 and the second conical roller 322, and a transmission belt 323 disposed on the base plate 10 and used to The toggle assembly 324 of the toggle transmission belt 323, the first conical roller 321 and the second conical roller 322 are symmetrically arranged, the toggle assembly 324 includes a vertical plate 3241 arranged on the base plate 10, a linear module 3242 horizontally arranged on the outer wall of the vertical plate 3241, two toggle frames 3243 symmetrically arranged at the execution end of the linear module 3242, two horizontal plates 3244 symmetrically arranged in the toggle frames 3243, and two abutment wheels 3245 symmetrically arranged on the outer wall of the horizontal plate 3244, and the transmission belt 323 is located between the two abutment wheels 3245.

[0026] It should be noted that, in this embodiment, when the power device 30 is working, the motor execution end drives the reducer to work, the reducer output end drives the drive shaft 31 to rotate, the drive shaft 31 drives the first tapered roller 321 to rotate, the first tapered roller 321 drives the second tapered roller 322 to rotate through the transmission belt 323, and the second tapered roller 322 drives the rotating frame 25 to rotate; When the speed of the driving shaft 31 remains unchanged, the shifting assembly 324 can shift the conveyor belt 323, so that the diameter of the conveyor belt 323 on the first tapered roller 321 becomes larger, and the diameter of the second tapered roller 322 becomes smaller. At this time, the speed of the second tapered roller 322 increases. On the contrary, the diameter of the conveyor belt 323 on the first tapered roller 321 becomes smaller, and the diameter of the second tapered roller 322 becomes larger. At this time, the speed of the second tapered roller 322 slows down. Furthermore, when the shifting assembly 324 is working, the execution end of the linear module 3242 drives the shifting frame 3243 to move, and the shifting frame 3243 shifts the conveyor belt 323 through the abutting wheel 3245 .

[0027] The working principle of the present invention is: The electrical components in the present invention are all triggered to operate by the PLC controller; After the animal undergoes a cranial blast experiment, it is necessary to aspirate the abnormal liquid in the cranium. After drilling the cranium, the cranium is fixed through the cranial positioning device 60. The execution end of the aspiration positioning device 50 enters the cranium according to the set route, and the peristaltic pump aspiration device 20 is turned on to perform the aspiration work. During aspiration, the power device 30 can accurately adjust the aspiration flow rates of multiple peristaltic pump aspiration devices 20 simultaneously. When the drainage end of the peristaltic pump aspiration device 20 switches to the sampling state, the sampling accommodation device 40 can store the aspirated liquid samples; When the cranial positioning device 60 works, the operator covers the cranial fixation ring 64 outside the animal's skull, rotates the positioning pin 65, and the positioning pin 65 abuts against the skull for fixation. After completion, the cranial fixation ring 64 is installed at the execution end of the power motor 63. The animal's body is placed on the power turntable 61. The motor drives the power turntable 61 to rotate, which can drive the entire animal body to rotate. The execution end of the power motor 63 drives the cranial fixation ring 64 to rotate to drive the animal's skull for angle adjustment; When the aspiration positioning device 50 works, the execution end of the robotic arm 51 drives the aspiration needle tube 52 to move; When the sampling accommodation device 40 works, the execution end of the stepper motor 431 drives the rotating disk 432 to rotate, and the rotating disk 432 drives the sample tubes 44 to pass by the sampling tube 41 one by one. Multiple sample tubes 44 can respectively receive the sample liquid discharged from the sampling tube 41; When the peristaltic pump aspiration device 20 works, the execution end of the power device 30 drives the rotating frame 25 to rotate. The rotation of the rotating frame 25 drives the pressure wheel 26 to squeeze the delivery tube 24 to generate an aspiration effect, and the faster the rotating frame 25 rotates, the greater the aspiration volume per unit time; During normal aspiration, the liquid in the cranium is discharged through the aspiration needle tube 52, the inhalation box 221, the liquid suction switching component 22, the delivery tube 24, the infusion slider 232, the first drainage hole 2311, and the drainage box 201; When adjusting the flow rate by changing the number of delivery tubes 24 in the working state, the liquid suction switching component 22 can switch the inhalation ends of one or more delivery tubes 24 to communicate with the air box 222, that is, switch the delivery tubes 24 from the aspiration working state to the idle state; During sampling, the drainage switching component 23 switches the drainage ends of any one or more delivery tubes 24 to communicate with the sampling box 202, and the sampling work can start; Both the first backwashing tube 271 and the second backwashing tube 272 can be connected to the backwashing liquid supply system. During backwashing, after the inhalation ends of all the delivery tubes 24 are switched to communicate with the air box 222, the valve of the air pipe on the air box 222 is closed, and the backwashing liquid supply system is turned on. The backwashing liquid enters through the second backwashing tube 272, and backwashing can be carried out. When the inhalation ends of all the delivery tubes 24 are switched to communicate with the sampling box 202, the valve on the sampling tube 41 is closed, and the backwashing liquid enters through the first backwashing tube 271, and backwashing can be carried out; The camera 282 can capture image information of the aspirated fluid passing through the pipeline and upload the image information to the controller; The working principle of the suction switching component 22 is consistent with that of the discharge switching component 23. Taking the operation of the discharge switching component 23 as an example, the electromagnetic block 233 is energized to generate an opposite suction force or a same repulsion force with the magnetic block 234, and the infusion slider 232 moves under the action of the suction force or the repulsion force, so that the infusion slider 232 is connected to the first discharge hole 2311 or the second discharge hole 2312. When the infusion slider 232 is connected to the second discharge hole 2312, the body of the infusion slider 232 blocks the first discharge hole 2311. When the power device 30 is working, the motor execution end drives the reducer to work, the reducer output end drives the driving shaft 31 to rotate, the driving shaft 31 drives the first tapered roller 321 to rotate, the first tapered roller 321 drives the second tapered roller 322 to rotate through the transmission belt 323, and the second tapered roller 322 drives the rotating frame 25 to rotate; When the speed of the driving shaft 31 remains unchanged, the shifting assembly 324 can shift the conveyor belt 323, so that the diameter of the conveyor belt 323 on the first tapered roller 321 becomes larger, and the diameter of the second tapered roller 322 becomes smaller. At this time, the speed of the second tapered roller 322 increases. On the contrary, the diameter of the conveyor belt 323 on the first tapered roller 321 becomes smaller, and the diameter of the second tapered roller 322 becomes larger. At this time, the speed of the second tapered roller 322 slows down. When the shifting assembly 324 is working, the execution end of the linear module 3242 drives the shifting frame 3243 to move, and the shifting frame 3243 shifts the conveyor belt 323 through the abutting wheel 3245 .

[0028] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A craniotomy suction device for establishing a craniocerebral blast injury model, comprising a base plate (10), an outer cover box (11) provided on the top of the base plate (10), a plurality of peristaltic pump suction devices (20) linearly arrayed on the base plate (10) and located inside the outer cover box (11), and a power device (30) provided on the base plate (10) and used to drive the plurality of peristaltic pump suction devices (20) to work, characterized in that, The peristaltic pump suction device (20) comprises a peristaltic pump housing (21) whose outer wall is connected to the upper surface of the base plate (10) through a bracket, a liquid suction switching component (22) and a liquid discharge switching component (23) which are arranged on the outer wall of the peristaltic pump housing (21) and the outer wall passes through the outer cover box (11) and extends to the outside of the outer cover box (11), a plurality of delivery pipes (24) arranged in the peristaltic pump housing (21), a rotating frame (25) rotatably connected to the inner wall of the peristaltic pump housing (21), and pressure wheels (26) symmetrically arranged at both ends of the rotating frame (25) and abutting against the delivery pipes (24), wherein one end of the delivery pipe (24) is connected to the liquid suction switching component (22) and the other end is connected to the liquid discharge switching component (23); The liquid discharge end of the liquid discharge switching component (23) is provided with a liquid discharge box (201) and a sampling box (202), and the outer wall of the outer cover box (11) is provided with a sampling containing device (40) corresponding to the position of the sampling box (202); The power device (30) comprises a drive shaft (31) disposed on the base plate (10), and a plurality of speed adjustment components (32) disposed on the drive shaft (31), wherein the speed adjustment components (32) are used to drive the rotating frame (25) to rotate.

2. The craniotomy suction device for establishing a model of craniocerebral blast injury according to claim 1, wherein, The drainage switching component (23) comprises a positioning box (231) arranged on the outer wall of the peristaltic pump housing (21), a plurality of first drainage holes (2311) and second drainage holes (2312) penetrated through the outer wall of the positioning box (231), a plurality of infusion sliders (232) slidably connected to the inner wall of the positioning box (231), two electromagnetic blocks (233) symmetrically embedded at the top and bottom of the infusion slider (232), and two magnetic blocks (234) symmetrically arranged in the positioning box (231) and located at the upper and lower parts of the electromagnetic blocks (233), the infusion slider (232) is connected to the delivery tube (24), the plurality of first drainage holes (2311) are all connected to the drainage box (201), and the plurality of second drainage holes (2312) are all connected to the sampling box (202); The liquid suction switching component (22) has the same structure as the liquid discharge switching component (23), and a suction box (221) and an air box (222) are provided on the outer wall of the positioning box (231) in the liquid suction switching component (22).

3. The craniotomy aspiration device for establishing a model of craniocerebral blast injury according to claim 1, characterized in that, The speed adjustment component (32) comprises a first conical roller (321) sleeved on the outer wall of the drive shaft (31), a second conical roller (322) one end of which is connected to the rotating frame (25) via a connecting rod, a transmission belt (323) arranged between the first conical roller (321) and the second conical roller (322), and a shifting assembly (324) arranged on the base plate (10) and used to shift the transmission belt (323), wherein the first conical roller (321) and the second conical roller (322) are symmetrically arranged.

4. The craniotomy suction device for establishing a craniocerebral blast injury model according to claim 3, wherein, The toggle assembly (324) comprises a vertical plate (3241) arranged on the base plate (10), a linear module (3242) arranged horizontally on the outer wall of the vertical plate (3241), two toggle frames (3243) symmetrically arranged at the execution end of the linear module (3242), two horizontal plates (3244) symmetrically arranged in the toggle frames (3243), and two abutment wheels (3245) symmetrically arranged on the outer wall of the horizontal plate (3244), and the transmission belt (323) is located between the two abutment wheels (3245).

5. The craniotomy suction device for establishing a model of craniocerebral blast injury according to claim 2, wherein It also includes a backwashing component (27), the backwashing component (27) including a first backwashing pipe (271) having one end connected to the sampling box (202), and a second backwashing pipe (272) having one end connected to the air box (222).

6. The craniotomy aspiration device for establishing a craniocerebral blast injury model according to claim 2, characterized in that, It also includes a suction liquid shooting component (28), the suction liquid shooting component (28) including an outer cover plate (281) sleeved on the outer wall of the delivery tube (24) and connected to the outer wall of the positioning box (231) at one end and connected to the outer wall of the peristaltic pump housing (21) at the other end, and a camera (282) arranged in the outer cover plate (281).

7. An intracranial suction device for establishing a model of craniocerebral blast injury according to claim 1, characterized in that, The sampling containing device (40) comprises a sampling tube (41) having one end connected to the sampling box (202), a positioning frame (42) arranged on the outer wall of the outer cover box (11), a conversion component (43) arranged at the bottom of the positioning frame (42) and having an execution end that passes through the positioning frame (42) and extends to the upper part of the positioning frame (42), and a plurality of sample tubes (44) arranged at the execution end of the conversion component (43).

8. The craniotomy suction device for establishing a craniocerebral blast injury model according to claim 7, characterized in that, The conversion component (43) comprises a stepper motor (431) disposed at the bottom of the positioning frame (42) and having an execution end that passes through the positioning frame (42) and extends to the upper part of the positioning frame (42), a rotating disk (432) disposed at the execution end of the stepper motor (431), and a plurality of placement holes in a circular array that pass through the rotating disk (432), wherein the placement holes are used to place sample tubes (44).

9. The craniotomy suction device for establishing a craniocerebral blast injury model according to claim 2, characterized in that, It also includes a plurality of suction positioning devices (50) disposed on the base plate (10), wherein the plurality of suction positioning devices (50) correspond one-to-one to the positions of the plurality of peristaltic pump suction devices (20), and the suction positioning device (50) includes a mechanical arm (51) disposed on the base plate (10), and a suction needle tube (52) disposed at the execution end of the mechanical arm (51), and the suction needle tube (52) is connected to the suction box (221) through a pipeline.

10. The craniotomy suction device for establishing a model of craniocerebral blast injury according to claim 9, characterized in that, It further includes a plurality of cranial positioning devices (60) provided on the base plate (10). The positions of the plurality of cranial positioning devices (60) correspond one by one to the plurality of suction positioning devices (50). The cranial positioning device (60) includes a power turntable (61) provided on the base plate (10), a square plate (62) vertically provided on the top of the power turntable (61), a power motor (63) provided on the outer wall of the square plate (62) and with an execution end penetrating through the square plate (62), a cranial fixing ring (64) detachably connected to the execution end of the power motor (63), and a plurality of positioning pins (65) inserted through the cranial fixing ring (64) and threadedly connected to the cranial fixing ring (64).

Images