Brain stereotaxic apparatus capable of being automatically adjusted

Abstract

The invention discloses a brain stereotaxic instrument capable of being automatically adjusted, and relates to the field of automatic control, the brain stereotaxic instrument comprises a brain positioning assembly, the lower end of an adjusting frame is arranged on a base, an X-direction adjusting assembly is arranged at the upper end of the adjusting frame, a Y-direction adjusting assembly is arranged on the X-direction adjusting assembly, and a double-corner adjusting assembly is arranged on the Y-direction adjusting assembly; the X-direction adjusting assembly is arranged on the double-corner adjusting assembly, the Y-direction adjusting assembly is arranged on the base, the Z-direction adjusting assembly is arranged on the double-corner adjusting assembly, the tool clamping assembly is arranged on the Z-direction adjusting assembly, the brain positioning assembly is arranged on the base, and the X-direction adjusting assembly, the Y-direction adjusting assembly and the Z-direction adjusting assembly are all electrically connected with the control center. The tool clamping assembly sequentially passes through the Z-direction adjusting assembly, the double-rotation-angle adjusting assembly, the Y-direction adjusting assembly and the X-direction adjusting assembly and then is arranged on the adjusting frame, the adjusting frame is fixed to the base very stably, accurate positioning can be achieved, and meanwhile the Z-direction adjusting assembly, the Y-direction adjusting assembly and the X-direction adjusting assembly are controlled through the control center so that automatic adjustment can be achieved.

Description

Technical Field

[0001] The present invention relates to the field of automatic control, in particular to an automatically adjustable brain stereotactic instrument. Background Art

[0002] Animal brain stereotaxic devices are important research devices that use a three-dimensional coordinate system to precisely locate specific brain regions, enabling targeted interventions such as electrode implantation and drug injection, as well as recording neural signals. They also deliver drugs or transplanted cells with millimeter-level precision, providing spatial positioning support for neuromodulation research and the construction of brain disease treatment models. Most existing brain stereotaxic devices are designed with a cantilever beam structure. Due to the weak stability of the cantilever structure, the positioning accuracy of the device is low. Some devices require manual adjustment by the operator, which is slow and inconvenient. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an automatically adjustable brain stereotactic instrument.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] An automatically adjustable brain stereotactic instrument comprises a base, an adjustment frame, an X-axis adjustment component, a Y-axis adjustment component, a Z-axis adjustment component, a dual-angle adjustment component, a brain positioning component, and a tool clamping component, wherein the lower end of the adjustment frame is arranged on the base, the X-axis adjustment component is arranged on the upper end of the adjustment frame, the Y-axis adjustment component is arranged on the output portion of the X-axis adjustment component, the dual-angle adjustment component is arranged on the output portion of the Y-axis adjustment component, the Z-axis adjustment component is arranged on the output portion of the dual-angle adjustment component, the tool clamping component is arranged on the output portion of the Z-axis adjustment component, the brain positioning component is arranged on the base and cooperates with the tool clamping component, and the X-axis adjustment component, the Y-axis adjustment component, and the Z-axis adjustment component are all electrically connected to a control center.

[0006] Furthermore, the X-direction adjustment assembly includes an X-direction motor, an X-direction slider, an X-direction guide rail, an X-direction screw rod, an X-direction scale and an X-direction mark. The X-direction guide rail is fixedly arranged on the top of the adjustment frame, the X-direction slider is slidably arranged on the X-direction guide rail, the X-direction motor is fixedly arranged on the adjustment frame, the X-direction screw rod is arranged on the output shaft of the X-direction motor and is threadedly engaged with the X-direction slider, the X-direction scale rod is arranged on the top of the adjustment frame, and the X-direction slider is provided with the X-direction mark that cooperates with the X-direction scale rod.

[0007] Furthermore, the Y-axis adjustment assembly includes a Y-axis motor, a Y-axis guide rod, a Y-axis screw rod, a Y-axis output block, a Y-axis fixed block and a Y-axis scale. The Y-axis motor is fixedly arranged on the Y-axis fixed block, the Y-axis guide rod passes through the X-axis slider and is fixedly connected to the Y-axis output block, the two ends of the Y-axis scale are respectively arranged on the Y-axis output block and the Y-axis fixed block, and the Y-axis screw rod is arranged on the output part of the Y-axis motor and is threadedly engaged with the X-axis slider.

[0008] Furthermore, the dual angle adjustment assembly includes a first rotating block, a second rotating block, a first rotating scale, a second rotating scale, a first locking screw, a second locking screw, a limit block, a central rotating shaft and a rotating shaft locking head. The Y-direction output block is provided with a rotating hole, one end of the first rotating block is rotatably set in the rotating hole, the Y-direction output block and the first rotating block are fixedly connected by the first locking screw, the limit block is fixedly provided on the Y-direction output block, the first rotating block is provided with a limiting groove that cooperates with the limit block, the other end of the first rotating block is provided with a rotating groove, one end of the second rotating block is rotatably set in the rotating groove through the central rotating shaft, the central rotating shaft is fixed to the first rotating block through the rotating shaft locking head, the second rotating block is fixed to the first rotating block through the second locking screw, the first rotating block is provided with the first rotating scale, the Y-direction output block is provided with a first rotating mark that cooperates with the first rotating scale, the second rotating block is provided with the second rotating scale, and the first rotating block is provided with a second rotating mark that cooperates with the second rotating scale.

[0009] Furthermore, the Z-axis adjustment assembly includes a Z-axis motor, a Z-axis guide rod, a Z-axis screw rod, a Z-axis output block and a Z-axis scale. The Z-axis guide rod is slidably arranged on the second rotating block, the Z-axis output block is fixedly arranged on the lower end of the Z-axis guide rod, the Z-axis motor is fixedly arranged on the upper end of the Z-axis guide rod, the Z-axis screw rod is arranged on the output part of the Z-axis motor and is threadedly engaged with the second rotating block, and the Z-axis scale is arranged on the outer wall of the Z-axis guide rod.

[0010] The locking sleeve has a locking groove on its side so that the locking pin can be fixed on the locking sleeve, and the locking sleeve has a locking groove on its side so that the locking pin can be fixed on the locking sleeve.

[0011] Furthermore, the tool clamping component includes a tool end, a tool ring, a tool knob and a connecting rod, the upper end of the connecting rod is arranged between the first clamping groove and the second clamping groove, the tool end is arranged on the lower end of the connecting rod, the tool knob fixes the tool ring on the outer wall of the tool end, and a tool groove is arranged on the outer wall of the tool end.

[0012] Furthermore, the brain positioning assembly includes a sliding plate, a sliding bar, a locking bar, a cam handle, a locking ear component and a locking nose component. A limiting groove is provided on the upper surface of the base. The sliding bar is slidably set in the limiting groove and cooperates with the limiting groove. The sliding bar is fixedly connected to the sliding plate. A locking groove that cooperates with the limiting groove is provided on the base. The locking bar is set in the locking groove and one side cooperates with the sliding bar, and the other side of the locking bar cooperates with the cam handle on the base.

[0013] Furthermore, the lock ear component includes a lock ear seat, an ear rod, an ear sleeve, an inner spring, a spring plug, a pressing plate and a pressing knob. The lock ear seat is fixedly arranged on the sliding plate, the ear sleeve is fixedly arranged on the upper end of the lock ear seat, the spring plug is arranged on one end of the ear sleeve, the inner spring is arranged in the ear sleeve and one end cooperates with the spring plug, the ear rod is arranged in the other end of the ear sleeve and cooperates with the other end of the inner spring, the lock ear seat is provided with the pressing plate for fixing the ear rod, and the lock ear seat is fixed to the lock ear seat through the pressing knob.

[0014] Furthermore, the lock nose component includes a lock nose seat, a horizontal slide, a slide knob, a guide seat, a guide rail, a transmission screw, a screw knob, a nose clamp, a nose clamp rod, a hinge rod, a separation spring and a clamping screw, the lock nose seat is provided with a horizontal slide groove, the horizontal slide is provided with an adjusting slot, the slide knob passes through the adjusting slot and is threadedly connected to the lock nose seat, the guide seat is vertically fixed to the end portion of the horizontal slide, the guide seat is vertically fixed with the guide rail, one end of the nose clamp is slidably arranged on the guide rail, the transmission screw is rotatably arranged on the guide seat and threadedly cooperates with the nose clamp rod, the screw knob is arranged on the end portion of the transmission screw, the other end of the nose clamp rod cooperates with one end of the nose clamp rod, the other end of the nose clamp rod is fixedly arranged on the hinge rod, and the other end of the hinge rod is hingedly arranged on the nose clamp, the hinge rod is fixed to the nose clamp by the clamping screw, and the separation spring is arranged between the nose clamp and the hinge rod.

[0015] The beneficial effects of the present invention are:

[0016] 1) In this technology, the tool clamping assembly is sequentially arranged on the adjustment frame through the Z-axis adjustment assembly, the double-angle adjustment assembly, the Y-axis adjustment assembly, and the X-axis adjustment assembly. The adjustment frame is very stable on the fixed base and can achieve precise positioning. At the same time, the operation of the Z-axis adjustment assembly, the Y-axis adjustment assembly, and the X-axis adjustment assembly is controlled by the control center, which can realize automatic adjustment and effectively improve the speed of the experiment during the experiment.

[0017] 2) In this technology, the angle of the experimental tool can be adjusted by using the first rotating block and the second rotating block in conjunction with each other, thereby achieving diversification of experiments.

[0018] 3) In this technology, the nose-locking component can quickly fix the nose of the animal, thereby increasing the fixation speed of the experimental animal. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a diagram of the stereoscopic connection structure of the stereotaxic instrument;

[0020] Figure 2 It is a three-dimensional connection structure diagram of the double-angle adjustment component;

[0021] Figure 3 It is a diagram of the coordination structure between the limiting block and the limiting groove;

[0022] Figure 4 It is a diagram of the connection structure between the connecting block and the locking sleeve;

[0023] Figure 5 It is a diagram of the matching structure between the tool end and the tool ring;

[0024] Figure 6 A three-dimensional connection diagram of the brain positioning components;

[0025] Figure 7 This is a diagram of the matching structure between the ear stem and the earmuff;

[0026] Figure 8 It is a diagram of the cooperation structure between the sliding bar and the locking bar;

[0027] In the figure, 1-base, 2-adjustment frame, 3-X-direction motor, 4-X-direction slider, 5-X-direction guide rail, 6-X-direction screw rod, 7-X-direction scale, 8-X-direction mark, 9-Y-direction motor, 10-Y-direction guide rod, 11-Y-direction screw rod, 12-Y-direction output block, 13-Y-direction fixed block, 14-Y-direction scale, 15-first rotating block, 16-second rotating block, 17-first rotating scale, 18-second rotating scale Ruler, 19-first locking screw, 20-second locking screw, 21-limit block, 22-center shaft, 23-shaft locking head, 24-limit groove, 25-rotation groove, 26-first rotation mark, 27-second rotation mark, 28-Z-direction motor, 29-Z guide rod, 30-Z-direction screw, 31-Z-direction output block, 32-Z-direction ruler, 33-connecting block, 34-locking sleeve, 35-top block, 36-sliding pin, 37-ejection spring, 38-ejection knob, 39-locking slide, 40-pin groove, 41-first clamping groove, 42-second clamping groove, 43-tool end, 44-tool ring, 45-tool knob, 46-connecting rod, 47-tool groove, 48-sliding plate, 49-sliding bar, 50-locking bar, 51-cam handle, 52-limiting slide, 53-locking ear seat, 54-ear rod , 55-earmuffs, 56-inner spring, 57-spring plug, 58-clamping plate, 59-clamping knob, 60-nose lock seat, 61-horizontal slide, 62-slide plate knob, 63-guide seat, 64-guide rail, 65-transmission screw, 66-screw knob, 67-nose splint, 68-nose clamp rod, 69-hinge rod, 70-separation spring, 71-clamping screw, 72-horizontal slide, 73-adjustment slot. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0029] See Figures 1-8 , the present invention provides a technical solution:

[0030] An automatically adjustable brain stereotactic instrument comprises a base 1, an adjustment frame 2, an X-axis adjustment component, a Y-axis adjustment component, a Z-axis adjustment component, a double-angle adjustment component, a brain positioning component and a tool clamping component. The lower end of the adjustment frame 2 is arranged on the base 1, the X-axis adjustment component is arranged on the upper end of the adjustment frame 2, the Y-axis adjustment component is arranged on the output part of the X-axis adjustment component, the double-angle adjustment component is arranged on the output part of the Y-axis adjustment component, the Z-axis adjustment component is arranged on the output part of the double-angle adjustment component, the tool clamping component is arranged on the output part of the Z-axis adjustment component, the brain positioning component is arranged on the base 1 and cooperates with the tool clamping component, and the X-axis adjustment component, the Y-axis adjustment component and the Z-axis adjustment component are all electrically connected to a control center. Among them, the base 1 is used to install the adjustment frame 2 and the brain positioning component, the brain positioning component is used to fix the animal's brain, and the control center is existing technology. Under the control of the control center, the X-direction adjustment component, the Y-direction adjustment component and the Z-direction adjustment component work together, and the tool clamping component is controlled to work through the X-direction adjustment component, the Y-direction adjustment component, the double angle adjustment component and the Z-direction adjustment component in turn. The tool clamping component is used to clamp the tools used during the experiment.

[0031] In some embodiments, the X-axis adjustment assembly includes an X-axis motor 3, an X-axis slider 4, an X-axis guide rail 5, an X-axis screw rod 6, an X-axis scale 7 and an X-axis mark 8. The X-axis guide rail 5 is fixedly set on the top of the adjustment frame 2, the X-axis slider 4 is slidably set on the X-axis guide rail 5, the X-axis motor 3 is fixedly set on the adjustment frame 2, the X-axis screw rod 6 is set on the output shaft of the X-axis motor 3 and is threadedly engaged with the X-axis slider 4, an X-axis scale 7 is set on the top of the adjustment frame 2, and an X-axis mark 8 is set on the X-axis slider 4 to cooperate with the X-axis scale 7. Among them, the X-axis motor 3 is a motor in the prior art and is electrically connected to the control center. The X-axis motor 3 drives the X-axis screw 6 to rotate, and the X-axis screw 6 pushes the X-axis slider 4 to slide on the X-axis guide rail 5, thereby realizing the X-axis adjustment of the tool clamping assembly. The X-axis ruler 7 is set parallel to the X-axis guide rail 5. Setting the X-axis ruler 7 can intuitively see the distance moved by the X-axis slider 4. The X-axis mark 8 is a triangular mark, and a tip of the X-axis mark 8 points to the scale of the X-axis ruler 7.

[0032] In some embodiments, the Y-axis adjustment assembly includes a Y-axis motor 9, a Y-axis guide rod 10, a Y-axis screw rod 11, a Y-axis output block 12, a Y-axis fixed block 13 and a Y-axis scale 14. The Y-axis motor 9 is fixedly set on the Y-axis fixed block 13, and the Y-axis guide rod 10 is fixedly connected to the Y-axis output block 12 after passing through the X-axis slider 4. The two ends of the Y-axis scale 14 are respectively set on the Y-axis output block 12 and the Y-axis fixed block 13. The Y-axis screw rod 11 is set on the output part of the Y-axis motor 9 and is threadedly engaged with the X-axis slider 4. The Y-axis motor 9 is a conventional motor and is electrically connected to the control center. Two parallel Y-axis guide rods 10 are provided. The X-axis slider 4 has two through-holes that mate with the Y-axis guide rods 10. A Y-axis fixed block 13 is fixed to the Y-axis guide rod 10 for mounting the Y-axis motor 9. A Y-axis output block 12 is fixed to the Y-axis guide rod 10 for mounting the dual-angle adjustment assembly. A Y-axis scale 14 is provided between the Y-axis output block 12 and the Y-axis fixed block 13, allowing the movement of the Y-axis output block 12 to be visually displayed on the Y-axis scale 14. The Y-axis motor 9 rotates the Y-axis screw 11, which is threadedly engaged with the X-axis slider 4, thereby driving the tool clamping assembly to move in the Y direction.

[0033] In some embodiments, the dual-angle adjustment assembly includes a first rotating block 15, a second rotating block 16, a first rotating scale 17, a second rotating scale 18, a first locking screw 19, a second locking screw 20, a limit block 21, a central rotating shaft 22 and a rotating shaft locking head 23. A rotating hole is provided on the Y-axis output block 12, one end of the first rotating block 15 is rotatably set in the rotating hole, the Y-axis output block 12 and the first rotating block 15 are fixedly connected by the first locking screw 19, a limit block 21 is fixedly provided on the Y-axis output block 12, a limit groove 24 that cooperates with the limit block 21 is provided on the first rotating block 15, and the first rotating block 15 has a plurality of fixedly ... A rotation slot 25 is provided on the other end of the block 15. One end of the second rotating block 16 is rotatably mounted in the rotation slot 25 via a central rotating shaft 22. The central rotating shaft 22 is fixed to the first rotating block 15 via a rotating shaft locking head 23. The second rotating block 16 is fixed to the first rotating block 15 via a second locking screw 20. The first rotating block 15 is provided with a first rotating scale 17. The Y-direction output block 12 is provided with a first rotating mark 26 that cooperates with the first rotating scale 17. The second rotating block 16 is provided with a second rotating scale 18. The first rotating block 15 is provided with a second rotating mark 27 that cooperates with the second rotating scale 18. The first rotating block 15 rotates around the axis of the rotating hole, and the second rotating block 16 rotates around the axis of the central rotating shaft 22. The axis of the rotating hole and the axis of the central rotating shaft 22 are perpendicular to each other. The axis of the rotating hole is parallel to the Y guide rod 10, and the axis of the central rotating shaft 22 is parallel to the X guide rail 5. The first locking screw 19 and the second locking screw 20 are both hand-tightening screws in the prior art. The first locking screw 19 is threadedly matched with the Y-direction output block 12 and its end is pressed against the first rotating block 15. The second locking screw 20 is threadedly matched with the first rotating block 15 and its end is pressed against the second rotating block 16. An internal thread is provided on the end of the central rotating shaft 22, and an external thread is provided on the end of the rotating shaft locking head 23 that cooperates with the internal thread. Under the cooperation of the central rotating shaft 22 and the rotating shaft locking head 23, the first rotating block 15 and the second rotating block 16 are connected together. A limit block 21 is provided on the Y-direction output block 12 and is used in conjunction with the limit groove 24 to limit the rotation range of the first rotating block 15. The outer surface of the first rotating block 15 is a cylindrical surface, and the first rotation scale 17 is provided on the cylindrical surface. The first rotation mark 26 is a triangle and one sharp angle cooperates with the scale on the first rotation scale 17. The second rotation scale 18 is a sector-shaped scale, the center of the sector is on the axis of the central rotation shaft 22 , and the second rotation mark 27 is a triangle with one sharp corner matching the scale on the second rotation scale 18 .

[0034] In some embodiments, the Z-axis adjustment assembly includes a Z-axis motor 28, a Z-axis guide rod 29, a Z-axis screw rod 30, a Z-axis output block 31, and a Z-axis scale 32. The Z-axis guide rod 29 is slidably mounted on the second rotating block 16, the Z-axis output block 31 is fixedly mounted on the lower end of the Z-axis guide rod 29, the Z-axis motor 28 is fixedly mounted on the upper end of the Z-axis guide rod 29, the Z-axis screw rod 30 is mounted on the output portion of the Z-axis motor 28 and is threadedly engaged with the second rotating block 16, and the Z-axis scale 32 is mounted on the outer wall of the Z-axis guide rod 29. The Z-axis motor 28 is a motor in the prior art and is electrically connected to the control center. Two Z-axis guide rods 29 are provided and arranged parallel to each other. The Z-axis output block 31 is fixed to the lower end of the Z-axis guide rod 29 for mounting the tool clamping assembly. The Z-axis motor 28 is fixed to the upper end of the Z-axis guide rod 29 for driving the Z-axis screw rod 30 to rotate. The Z-axis screw rod 30 is threadedly engaged with the second rotating block 16, thereby controlling the tool clamping assembly to move up and down. The Z-direction scale 32 is directly set on the Z-guide rod 29, and the second rotating block 16 is provided with a Z-direction mark that cooperates with the Z-direction scale 32. The Z-direction mark is set in a triangle and one of the sharp corners of the triangle cooperates with the scale on the Z-direction scale 32.

[0035] In some embodiments, the tool holding assembly includes a connecting block 33, a locking sleeve 34, a top block 35, a sliding pin 36, an ejection spring 37, an ejection knob 38 and a tool holding component. A locking slot 39 is provided in the locking sleeve 34, and the top block 35 is slidably provided in the locking slot 39 and cooperates with the locking slot 39. Sliding pins 36 are fixedly provided on both sides of the top block 35, and pin grooves 40 that cooperate with the sliding pin 36 are provided on both sides of the locking sleeve 34. One end of the top block 35 A first clamping groove 41 is provided on it, and a second clamping groove 42 that cooperates with the first clamping groove 41 is provided on the inner wall of the locking slide groove 39. The tool clamping component is provided between the first clamping groove 41 and the second clamping groove 42. An ejection spring 37 is provided between the other end of the ejector block 35 and the inner wall of the locking sleeve 34. The ejection spring 37 is sleeved on the ejection knob 38. The ejection knob 38 and the locking sleeve 34 are threadedly matched. The ejector block 35 is fixed to the Z-direction output block 31 through the connecting block 33. Among them, the function of the connecting block 33 is to fix the ejector block 35 on the Z-direction output block 31. The ejector block 35 is symmetrically provided with sliding pins 36. Under the cooperation of the pin groove 40 on the locking sleeve 34 and the sliding pin 36, the ejector block 35 can only move in a certain direction in the locking sleeve 34. Under the action of the ejection spring 37, the first clamping groove 41 and the second clamping groove 42 are close to each other, thereby fixing the connecting rod 46 between the first clamping groove 41 and the second clamping groove 42. The ejection knob 38 is threadedly engaged with the locking sleeve 34, and the end of the ejection knob 38 is pressed against the ejector block 35. Under the action of the ejection knob 38, the connecting rod 46 is further fixed between the first clamping groove 41 and the second clamping groove 42 and will not fall off.

[0036] In some embodiments, the tool holding component includes a tool end 43, a tool ring 44, a tool knob 45, and a connecting rod 46. The upper end of the connecting rod 46 is disposed between the first clamping groove 41 and the second clamping groove 42. The tool end 43 is disposed on the lower end of the connecting rod 46. The tool knob 45 secures the tool ring 44 to the outer wall of the tool end 43. The outer wall of the tool end 43 is provided with a tool groove 47. The connecting rod 46 is used to mount the tool end 43. The tool groove 47 on the tool end 43 cooperates with the tool ring 44 to mount experimental tools. The tool knob 45 is threadedly engaged with the tool ring 44, and its end rests on the tool end 43, thereby securing the tool ring 44 to the tool end 43.

[0037] In some embodiments, the brain positioning assembly includes a sliding plate 48, a sliding bar 49, a locking bar 50, a cam handle 51, a locking ear component and a locking nose component. A limiting groove 52 is provided on the upper surface of the base 1. The sliding bar 49 is slidably set in the limiting groove 52 and cooperates with the limiting groove 52. The sliding bar 49 is fixedly connected to the sliding plate 48. A locking groove that cooperates with the limiting groove 52 is provided on the base 1. The locking bar 50 is set in the locking groove and one side cooperates with the sliding bar 49. The other side of the locking bar 50 cooperates with the cam handle 51 on the base 1. Among them, sliding bars 49 are fixed on both sides of the sliding plate 48, and the sliding bars 49 slide in the limiting slide grooves 52 on the base 1, so that the relative position between the sliding plate 48 and the base 1 can be adjusted, so that the experiment can be better carried out. The locking bar 50 cooperates with the cam handle 51, and the cam handle 51 is rotated and pressed on the locking bar 50, and the locking bar 50 is pressed on the sliding bar 49, thereby fixing the sliding plate 48 to the base 1. Two locking ear components are symmetrically provided on the base 1, and the two locking ear components are respectively inserted into the two ear canals of the animal, and the nose lock component is used to fix the nose of the animal.

[0038] In some embodiments, the lock ear component includes a lock ear seat 53, an ear rod 54, an ear sleeve 55, an inner spring 56, a spring plug 57, a clamping plate 58 and a clamping knob 59. The lock ear seat 53 is fixedly set on the sliding plate 48, the ear sleeve 55 is fixedly set on the upper end of the lock ear seat 53, the spring plug 57 is set on one end of the ear sleeve 55, the inner spring 56 is set in the ear sleeve 55 and one end cooperates with the spring plug 57, the ear rod 54 is set in the other end of the ear sleeve 55 and cooperates with the other end of the inner spring 56, a clamping plate 58 for fixing the ear rod 54 is provided on the lock ear seat 53, and the lock ear seat 53 is fixed to the lock ear seat 53 by a clamping knob 59. Among them, the lock ear seat 53 is used to install the earmuff 55, and the earmuff 55 is used to install the ear rod 54. In order to facilitate the telescopic adjustment of the ear rod 54, an inner spring 56 and a spring plug 57 are provided in the earmuff 55. Under the action of the inner spring 56, one person can also complete the fixation of the animal's brain. A through hole is provided on the clamping plate 58 for the clamping knob 59 to cooperate with. The clamping knob 59 is threadedly engaged with the lock ear seat 53. The ear rod 54 can be fixed on the lock ear seat 53 by using the clamping plate 58 and the clamping knob 59 in combination.

[0039] In some embodiments, the lock nose component includes a lock nose seat 60, a horizontal slide 61, a slide knob 62, a guide seat 63, a guide rail 64, a transmission screw 65, a screw knob 66, a nose clamp 67, a nose clamp rod 68, a hinge rod 69, a separation spring 70 and a clamping screw 71. A horizontal slide groove 72 is provided on the lock nose seat 60, an adjustment slot 73 is provided on the horizontal slide 61, the slide knob 62 passes through the adjustment slot 73 and is threadedly connected to the lock nose seat 60, the guide seat 63 is vertically fixed on the end of the horizontal slide 61, and a vertical fixed arrangement is provided on the guide seat 63. There is a guide rail 64, one end of the nose splint 67 is slidably set on the guide rail 64, the transmission screw 65 is rotatably set on the guide seat 63 and is threadedly matched with the nose splint 67, the screw knob 66 is set on the end of the transmission screw 65, the other end of the nose splint 67 is matched with one end of the nose clip rod 68, the other end of the nose clip rod 68 is fixedly set on the hinge rod 69, the other end of the hinge rod 69 is hingedly set on the nose splint 67, the hinge rod 69 is fixed to the nose splint 67 by a clamping screw 71, and a separation spring 70 is set between the nose splint 67 and the hinge rod 69. Among them, the lock nose seat 60 is fixed on the sliding plate 48, and a horizontal slide groove 72 is set on the lock nose seat 60. At the same time, an adjustment groove 73 is set on the horizontal slide plate 61. The adjustment groove 73 is used in conjunction with the slide knob 62 to make the horizontal slide plate 61 move closer to or away from the ear rod 54 side. The horizontal slide plate 61 is used to install the guide seat 63. The guide rail 64, transmission screw 65 and screw knob 66 on the guide seat 63 are used in conjunction to adjust the nose clamp 67 to move up and down in the vertical direction. The screw knob 66 drives the transmission screw 65 to rotate The transmission screw 65 is threadedly engaged with the nose splint 67, and the guide rail 64 serves as a guide for the movement of the nose splint 67. The nose splint 67 is arranged in a Z-shape. One end of the hinge rod 69 is hinged to the nose splint 67, and the nose splint rod 68 is connected to the other end of the hinge rod 69. A separation spring 70 is sleeved on the clamping screw 71. The hinge rod 69 is provided with a through hole that cooperates with the clamping screw 71. The clamping screw 71 is threadedly engaged with the nose splint 67. The function of the separation spring 70 is to separate the hinge rod 69 from the nose splint 67. The clamping screw 71 brings the hinge rod 69 and the nose splint 67 closer.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "the other end", "coaxial", "one side", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0041] In the present invention, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixation", "hinge" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0042] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. An automatically adjustable stereotaxic apparatus, characterized in that: The invention comprises a base (1), an adjustment frame (2), an X-direction adjustment component, a Y-direction adjustment component, a Z-direction adjustment component, a double-angle adjustment component, a brain positioning component and a tool clamping component, wherein the lower end of the adjustment frame (2) is arranged on the base (1), the X-direction adjustment component is arranged on the upper end of the adjustment frame (2), the Y-direction adjustment component is arranged on the output part of the X-direction adjustment component, the double-angle adjustment component is arranged on the output part of the Y-direction adjustment component, the Z-direction adjustment component is arranged on the output part of the double-angle adjustment component, the tool clamping component is arranged on the output part of the Z-direction adjustment component, the brain positioning component is arranged on the base (1) and cooperates with the tool clamping component, and the X-direction adjustment component, the Y-direction adjustment component and the Z-direction adjustment component are all electrically connected to a control center.

2. The automatically adjustable brain stereotaxic instrument according to claim 1, characterized in that: The X-direction adjustment assembly comprises an X-direction motor (3), an X-direction slider (4), an X-direction guide rail (5), an X-direction screw rod (6), an X-direction scale (7) and an X-direction mark (8); the X-direction guide rail (5) is fixedly arranged on the top of the adjustment frame (2); the X-direction slider (4) is slidably arranged on the X-direction guide rail (5); the X-direction motor (3) is fixedly arranged on the adjustment frame (2); the X-direction screw rod (6) is arranged on the output shaft of the X-direction motor (3) and is threadedly matched with the X-direction slider (4); the X-direction scale (7) is arranged on the top of the adjustment frame (2); and the X-direction slider (4) is provided with the X-direction mark (8) matched with the X-direction scale (7).

3. The automatically adjustable brain stereotaxic instrument according to claim 2, characterized in that: The Y-axis adjustment component comprises a Y-axis motor (9), a Y-axis guide rod (10), a Y-axis screw rod (11), a Y-axis output block (12), a Y-axis fixed block (13) and a Y-axis scale (14). The Y-axis motor (9) is fixedly arranged on the Y-axis fixed block (13). The Y-axis guide rod (10) passes through the X-axis slider (4) and is fixedly connected to the Y-axis output block (12). The two ends of the Y-axis scale (14) are respectively arranged on the Y-axis output block (12) and the Y-axis fixed block (13). The Y-axis screw rod (11) is arranged on the output part of the Y-axis motor (9) and is threadedly matched with the X-axis slider (4).

4. The automatically adjustable brain stereotaxic apparatus according to claim 3, characterized in that: The dual-angle adjustment assembly comprises a first rotating block (15), a second rotating block (16), a first rotating scale (17), a second rotating scale (18), a first locking screw (19), a second locking screw (20), a limit block (21), a central rotating shaft (22) and a rotating shaft locking head (23); a rotating hole is provided on the Y-direction output block (12); one end of the first rotating block (15) is rotatably arranged in the rotating hole; the Y-direction output block (12) and the first rotating block (15) are fixedly connected via the first locking screw (19); the limit block (21) is fixedly provided on the Y-direction output block (12); the first rotating block (15) is provided with a limiting groove (24) cooperating with the limit block (21); the other end of the first rotating block (15) is provided with a A rotation groove (25) is provided, one end of the second rotation block (16) is rotatably arranged in the rotation groove (25) through the central rotation shaft (22), the central rotation shaft (22) is fixed to the first rotation block (15) through the rotation shaft locking head (23), the second rotation block (16) is fixed to the first rotation block (15) through the second locking screw (20), the first rotation block (15) is provided with the first rotation scale (17), the Y-direction output block (12) is provided with a first rotation mark (26) matched with the first rotation scale (17), the second rotation block (16) is provided with the second rotation scale (18), and the first rotation block (15) is provided with a second rotation mark (27) matched with the second rotation scale (18).

5. The automatically adjustable brain stereotaxic instrument according to claim 4, characterized in that: The Z-direction adjustment assembly comprises a Z-direction motor (28), a Z-direction guide rod (29), a Z-direction screw rod (30), a Z-direction output block (31) and a Z-direction scale (32), wherein the Z-direction guide rod (29) is slidably arranged on the second rotating block (16), the Z-direction output block (31) is fixedly arranged on the lower end of the Z-direction guide rod (29), the Z-direction motor (28) is fixedly arranged on the upper end of the Z-direction guide rod (29), the Z-direction screw rod (30) is arranged on the output portion of the Z-direction motor (28) and is threadedly engaged with the second rotating block (16), and the Z-direction scale (32) is arranged on the outer wall of the Z-direction guide rod (29).

6. The automatically adjustable brain stereotaxic apparatus according to claim 5, characterized in that: The tool holding assembly includes a connecting block (33), a locking sleeve (34), a top block (35), a sliding pin (36), an ejection spring (37), an ejection knob (38) and a tool holding component. A locking slot (39) is provided in the locking sleeve (34). The top block (35) is slidably provided in the locking slot (39) and cooperates with the locking slot (39). The sliding pin (36) is fixedly provided on both sides of the top block (35). Pin grooves (40) cooperating with the sliding pin (36) are provided on both sides of the locking sleeve (34). A first clamping member is provided on one end of the top block (35). Groove (41), a second clamping groove (42) matching with the first clamping groove (41) is provided on the inner wall of the locking slide groove (39), the tool clamping component is arranged between the first clamping groove (41) and the second clamping groove (42), the ejection spring (37) is provided between the other end of the ejector block (35) and the inner wall of the locking sleeve (34), the ejection spring (37) is sleeved on the ejection knob (38), the ejection knob (38) and the locking sleeve (34) are threadedly matched, and the ejector block (35) is fixed to the Z-direction output block (31) through the connecting block (33).

7. The automatically adjustable brain stereotaxic apparatus according to claim 6, characterized in that: The tool holding component includes a tool end (43), a tool ring (44), a tool knob (45) and a connecting rod (46), the upper end of the connecting rod (46) is arranged between the first clamping groove (41) and the second clamping groove (42), the tool end (43) is arranged on the lower end of the connecting rod (46), the tool knob (45) fixes the tool ring (44) on the outer wall of the tool end (43), and a tool groove (47) is arranged on the outer wall of the tool end (43).

8. An automatically adjustable brain stereotaxic apparatus according to any one of claims 1 to 7, characterized in that: The brain positioning assembly includes a sliding plate (48), a sliding bar (49), a locking bar (50), a cam handle (51), a locking ear component and a locking nose component. A limiting slot (52) is provided on the upper surface of the base (1). The sliding bar (49) is slidably arranged in the limiting slot (52) and cooperates with the limiting slot (52). The sliding bar (49) is fixedly connected to the sliding plate (48). A locking slot that cooperates with the limiting slot (52) is provided on the base (1). The locking bar (50) is arranged in the locking slot and one side cooperates with the sliding bar (49). The other side of the locking bar (50) cooperates with the cam handle (51) on the base (1).

9. The automatically adjustable brain stereotaxic instrument according to claim 8, characterized in that: The lock ear component comprises a lock ear seat (53), an ear rod (54), an ear sleeve (55), an inner spring (56), a spring plug (57), a pressing plate (58) and a pressing knob (59); the lock ear seat (53) is fixedly arranged on the sliding plate (48); the ear sleeve (55) is fixedly arranged on the upper end of the lock ear seat (53); the spring plug (57) is arranged on one end of the ear sleeve (55); the inner spring (56) is arranged in the ear sleeve (55) and one end cooperates with the spring plug (57); the ear rod (54) is arranged in the other end of the ear sleeve (55) and cooperates with the other end of the inner spring (56); the lock ear seat (53) is provided with the pressing plate (58) for fixing the ear rod (54); the lock ear seat (53) is fixed to the lock ear seat (53) by the pressing knob (59).

10. The automatically adjustable brain stereotaxic instrument according to claim 8, characterized in that: The lock nose component comprises a lock nose seat (60), a horizontal slide (61), a slide knob (62), a guide seat (63), a guide rail (64), a transmission screw (65), a screw knob (66), a nose clamp (67), a nose clamp rod (68), a hinge rod (69), a separation spring (70) and a clamping screw (71). The lock nose seat (60) is provided with a horizontal slide groove (72), the horizontal slide (61) is provided with an adjustment groove (73), the slide knob (62) passes through the adjustment groove (73) and is threadedly connected to the lock nose seat (60), the guide seat (63) is vertically fixed on the end of the horizontal slide (61), the guide rail (64) is vertically fixed on the guide seat (63), and the nose One end of the splint (67) is slidably arranged on the guide rail (64), the transmission screw (65) is rotatably arranged on the guide seat (63) and is threadedly matched with the nose splint (67), the screw knob (66) is arranged on the end of the transmission screw (65), the other end of the nose splint (67) is matched with one end of the nose clamp rod (68), the other end of the nose clamp rod (68) is fixedly arranged on the hinge rod (69), the other end of the hinge rod (69) is hingedly arranged on the nose splint (67), the hinge rod (69) is fixed to the nose splint (67) by the clamping screw (71), and the separation spring (70) is arranged between the nose splint (67) and the hinge rod (69).

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