CN114073601B - Mechanical regulating device for rat intervertebral disc - Google Patents
Mechanical regulating device for rat intervertebral disc Download PDFInfo
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- CN114073601B CN114073601B CN202010808849.7A CN202010808849A CN114073601B CN 114073601 B CN114073601 B CN 114073601B CN 202010808849 A CN202010808849 A CN 202010808849A CN 114073601 B CN114073601 B CN 114073601B
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 40
- 230000001276 controlling effect Effects 0.000 claims abstract description 21
- 239000011148 porous material Substances 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 206010061246 Intervertebral disc degeneration Diseases 0.000 abstract description 9
- 208000018180 degenerative disc disease Diseases 0.000 abstract description 8
- 208000021600 intervertebral disc degenerative disease Diseases 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000007850 degeneration Effects 0.000 abstract description 3
- 241000700159 Rattus Species 0.000 description 55
- 230000000694 effects Effects 0.000 description 5
- 210000003484 anatomy Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 208000008035 Back Pain Diseases 0.000 description 1
- 208000008930 Low Back Pain Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000004962 physiological condition Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
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Abstract
The invention discloses a novel rat intervertebral disc mechanical adjusting device, which comprises: comprises a fixing piece, a sliding rod, a sliding screw bearing device I, a sliding screw bearing device II and a position regulating and controlling component; one end of the sliding rod is fixedly connected to the inner wall of the fixing piece, and the other end of the sliding rod sequentially penetrates through the through holes in the sliding screw bearing device I and the sliding screw bearing device II; the sliding screw bearing device I and the sliding screw bearing device II can slide along the length direction of the sliding rod; the invention provides a novel rat intervertebral disc mechanical regulating device which is used for precisely regulating and controlling mechanical loading such as fixing, pressurizing, pulling, twisting and the like of a vertebral body of a rat, so that the novel rat intervertebral disc mechanical regulating device is used for manufacturing an intervertebral disc degeneration model of the rat and preventing and treating degeneration.
Description
Technical Field
The invention relates to the technical field of experimental devices, in particular to a novel rat intervertebral disc mechanical adjusting device.
Background
With the continuous development of society, the chronic lower lumbago caused by intervertebral disc degeneration affects the production and life of people, so research on intervertebral disc degeneration is getting more attention. Rats, one of the most commonly used model animals, have found great use in the study of disc degeneration.
While the traditional needling model is difficult to simulate the intervertebral disc degeneration process caused by excessive mechanical load for a long time under physiological conditions, the lumbar instability model is difficult to achieve accurate quantitative modeling effect because of larger wounds and individual differences limited by the level of operators and the anatomy of rats.
Although the mechanical loading model can simulate the common cause of human intervertebral disc degeneration, the traditional Ilizarov device can only apply fixed pressure to the tail vertebrae of a rat through the adjustment of a spring, and can not be applied to the lumbar vertebrae and other parts of the rat. The mechanical loading is elastic loading, is greatly influenced by the mass of the used spring, and can not adjust the mechanical strength conveniently and randomly.
Meanwhile, in the research of mechanical loading of the intervertebral disc, a device capable of applying a certain amount of common abnormal stress such as traction stress, torsion stress and the like to the rat intervertebral disc is lacking.
For the above reasons, there is an urgent need to design a novel rat intervertebral disc mechanical adjustment device that overcomes the above problems.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a novel rat intervertebral disc mechanical regulating device which is used for accurately regulating and controlling mechanical loading such as fixing, pressurizing, pulling, twisting and the like on the vertebral bodies of rats, so that the device is used for manufacturing an intervertebral disc degeneration model of the rats and preventing and treating degeneration.
In order to achieve the above purpose, the present invention mainly provides the following technical solutions:
A novel mechanical regulating device for the intervertebral disc of a rat,
Comprises a fixing piece, a sliding rod, a sliding screw bearing device I, a sliding screw bearing device II and a position regulating and controlling component;
One end of the sliding rod is fixedly connected to the inner wall of the fixing piece, and the other end of the sliding rod sequentially penetrates through the through holes in the sliding screw bearing device I and the sliding screw bearing device II; the sliding screw bearing device I and the sliding screw bearing device II can slide along the length direction of the sliding rod;
The sliding screw bearing device I and the sliding screw bearing device II are fixedly provided with an anti-sliding gasket through bolts, and a pore canal between the anti-sliding gasket and the sliding screw bearing device I or the sliding screw bearing device II is used for fixing a screw;
The position regulating and controlling assembly comprises a regulating and controlling rod and a regulating knob, and the regulating and controlling rod is in a screw rod shape; one end of the fixing piece penetrates out of one part of a screw hole of a protruding block arranged at the bottom wall of the sliding screw bearing device I, and the other end of the fixing piece penetrates through the fixing ring and the penetrating hole at the bottom wall of the fixing piece in sequence to be integrally connected with the adjusting knob; one end of the fixed ring is fixedly connected with the sliding rod.
Further, the anti-sliding gaskets (6) are two groups, namely an anti-sliding gasket I (61) and an anti-sliding gasket II (62), which are respectively fixed on the top walls of the corresponding slidable screw bearing device I (3) and slidable screw bearing device II (4);
The anti-slip gasket (6) comprises an upper gasket (65) and a lower gasket (66); an opening (64) is arranged at the center of each of the upper gasket (65) and the lower gasket (66); the screw rod of the first fixing bolt (35) penetrates through the hole (64) on the anti-sliding gasket (6) and then is screwed into the second screw hole (38) correspondingly arranged on the top wall of the slidable screw bearing device I (3) and the top wall of the slidable screw bearing device II (4);
further, a plurality of holes (63) for screws to pass through are formed in the bottom wall of the upper gasket (65) and the top wall of the lower gasket (66), and the directions of the holes (63) are perpendicular to the sliding rod (2).
Further, the bottom wall of the upper gasket (65) and the hole channel (63) on the top wall of the lower gasket (66) are correspondingly arranged, and the hole channel (63) is closed to form a space for a screw to pass through.
Further, the number of the pore channels is four, and the pore channels are respectively and symmetrically arranged at two sides of the opening;
The diameters of the pore passages are correspondingly arranged with pore passages on the top walls of the slidable screw bearing device I and the slidable screw bearing device II; the hole canal is closed to form a space for the screw to pass through.
Further, the slidable screw bearing device I comprises a fixed block I, a through hole I penetrating through the fixed block I, a bump arranged at the bottom wall of the fixed block I and an anti-sliding gasket I arranged on the top wall of the fixed block I;
the sliding rod penetrates through the first through hole, and the regulating rod penetrates out of the first screw hole on the protruding block;
the anti-slip gasket I is buckled on the top wall and is fixed by a first fixing bolt;
a screw hole III is formed in the side wall of one side of the first fixed block in a penetrating mode and is communicated with the first through hole; the third screw hole is provided with a second fixing bolt, and the screw rod of the second fixing bolt is screwed into the third screw hole and abuts against the sliding rod to fix the position of the sliding screw bearing device I.
Further, the sliding screw bearing device II comprises a second fixed block, a second through hole penetrating through the second fixed block and an anti-sliding gasket II arranged on the top wall of the second fixed block;
the end part of the sliding rod passes through the through hole II;
the anti-sliding gasket II is buckled on the top wall and is fixed by a first fixing bolt;
A screw hole IV is formed in the side wall of one side of the second fixed block in a penetrating mode and is communicated with the second through hole; the screw hole is provided with a fixing bolt III, and a screw rod of the fixing bolt III is screwed into the screw hole IV and abuts against the sliding rod to fix the position of the sliding screw bearing device II.
Further, the sliding rod is a circle center rod body made of metal; the diameter is 1.8mm, and the length is 50-60mm;
The length of the regulating rod is 20-22mm.
Further, the length and width of the slidable screw bearing device I are 3mm;
The length and width of the slidable screw bearing device II are 3.5mm.
Furthermore, the sliding rod and the regulating rod are made of medical steel;
The fixing piece, the slidable screw bearing device I and the slidable screw bearing device II are all made of medical plastics.
Compared with the prior art, the invention has the beneficial effects that:
According to the novel rat intervertebral disc mechanical adjusting device, the purpose of accurately adjusting and controlling mechanical loading such as quantitative controllability and torsion of the mechanical loading of the rat intervertebral disc is achieved by arranging the slidable screw bearing device I, the slidable screw bearing device II and the position adjusting and controlling component;
The novel rat intervertebral disc mechanical regulating device can realize the use limitation that the traditional device cannot apply abnormal stress such as traction, torsion and the like; meanwhile, the loading and traction protection bidirectional functions of the degeneration model are realized.
The novel rat intervertebral disc mechanical regulating device realizes the multifunctional modeling effect of uniform mechanical pressurization and nonuniform mechanical pressurization.
The foregoing description is only an overview of the present invention, and is intended to provide a clear understanding of the technical means of the present invention, and may be practiced according to the teachings of the present specification, as hereinafter described in detail with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the use of the novel rat spinal disc mechanical adjustment device of the present invention;
FIG. 2 is a schematic structural view of the novel rat intervertebral disc mechanical adjustment device of the present invention;
FIG. 3 is a schematic structural view of another view of the novel rat disc mechanics adjustment device of the present invention;
FIG. 4 is a schematic view of the slidable screw carrier I of the present invention;
FIG. 5 is a schematic view of the slidable screw carrier II of the present invention;
FIG. 6 is a schematic view of the structure of the screw of the present invention;
FIG. 7 is a schematic view of the structure of the nailing device of the present invention;
Reference numerals illustrate:
1. a fixing member; 11. a fixing ring; 12. perforating;
2. a slide bar;
3. A slidable screw carrying device I; 31. a first fixed block; 32. a first through hole; 33. a bump; 34. A screw hole I; 35. a first fixing bolt; 36. a screw hole III; 37. a second fixing bolt; 38. a screw hole II;
4. A slidable screw carrying device II; 41. a second fixed block; 42. a second through hole; 43. screw holes IV; 44. A fixing bolt III;
6. An anti-slip gasket; 61. anti-slip shims I; 62. anti-slip gasket II; 63. a duct; 64. Opening holes; 65. a gasket is arranged on the upper part; 66. a lower gasket;
5. a position control assembly; 51. a control rod; 52. an adjustment knob;
7. a screw; 8. a nailing device;
Detailed Description
In order to further describe the technical means and the effects adopted by the invention to achieve the preset aim, the following detailed description refers to the specific implementation, structure, characteristics and effects of the novel rat intervertebral disc mechanical adjusting device according to the invention by combining the accompanying drawings and the preferred embodiment.
As shown in fig. 1 to 7, the novel rat intervertebral disc mechanical regulating device of the present invention comprises:
Comprises a fixing piece 1, a sliding rod 2, a sliding screw bearing device I3, a sliding screw bearing device II 4 and a position regulating and controlling assembly 5;
One end of the sliding rod 2 is fixedly connected to the inner wall of the fixing piece 1, and the other end of the sliding rod sequentially penetrates through holes in the slidable screw bearing device I3 and the slidable screw bearing device II 4; the slidable screw bearing device I3 and the slidable screw bearing device II 4 can slide along the length direction of the sliding rod 2;
The sliding screw bearing device I3 and the sliding screw bearing device II 4 are fixedly provided with an anti-sliding gasket 6 through bolts, and a hole 63 between the anti-sliding gasket 6 and the sliding screw bearing device I3 or the sliding screw bearing device II 4 is used for fixing a screw;
The position regulating and controlling assembly 5 comprises a regulating and controlling rod 51 and a regulating knob 52, wherein the regulating and controlling rod 51 is in a screw rod shape; one end of the fixing piece penetrates out of a first screw hole 34 of a protruding block 33 arranged at the bottom wall of the slidable screw bearing device I3, and the other end of the fixing piece penetrates through a fixing ring 11 and a through hole 12 at the bottom wall of the fixing piece 1 in sequence to be integrally connected with the adjusting knob 52; one end of the fixed ring 11 is fixedly connected with the sliding rod 2.
The embodiment of the application discloses a novel rat intervertebral disc mechanical adjusting device, which is characterized in that in the using process:
The experimenter can put the adjusting device into the position of the rat vertebral body, and the purpose of controllable mechanical loading can be realized by adjusting the positions of the slidable screw bearing device I3 and the slidable screw bearing device II 4 and manually and accurately adjusting the adjusting knob 52;
The test personnel are operating: firstly, according to the position of the rat vertebral body, the epidermis and the muscle are scratched, the middle position of the vertebral body is exposed, the threaded part of the threaded nail is driven into the interior of the vertebral body, if the tail vertebral body of the rat is used, the whole vertebral body can be penetrated, and the screw 7 is firmly fixed on the vertebral body of the rat. In the process of setting the nails, the nails and the rat vertebral bodies are kept vertical, the tail vertebral fixing device can be used for assisting in operation, the screws 7 arranged on the adjacent vertebral bodies are parallel as much as possible, and torsion force generated by angle change is avoided, so that experimental results are influenced; after the nails are placed, the screws 7 are placed between the upper gasket 65 and the lower gasket 66, and the anti-sliding gasket 6 and the fixing bolts 35 are simultaneously fixed on the corresponding first fixing block 31 or the second fixing block 41 through the fixing bolts;
The relative positions of the initial slidable screw bearing device I3 and the slidable screw bearing device II 4 are determined by the positions of the screws, and the relative positions of the slidable screw bearing device II 4 are adjusted; by adjusting knob 52, the movement of the adjusting screw, and thus the relative position of the slidable screw carrier i 3, effects compression and distraction of the disc. Wherein the number of turns of the adjustment knob 52 is used as a basis for quantifying the degree of compression and traction. After the sliding position is reached, the sliding screw bearing device I3 is fixed through the fixing bolt, so that long-term stable compression or traction is realized. If the adjustment knob 52 is not used and the position of the slidable screw carrying device ii 4 is not changed, the device can be used as a vertebral body fixation device for fixing the height of the intervertebral space.
According to the novel rat intervertebral disc mechanical adjusting device, the sliding rod 2 made of the medical steel is arranged, and the sliding rod 2 is rigidly fixed, so that stable mechanical properties in the stress application process are realized.
According to the novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application, the sliding screw bearing device I3 and the sliding screw bearing device II 4 which can slide along the sliding rod 2 are arranged, and meanwhile, the position adjusting and controlling assembly 5 is arranged, so that the distance between the fixing screws is adjusted, and different treatment and experiment requirements are met; the adjusting knob 52 can adjust the proper thread pitch on the screw rod, and can control the mechanical loading intensity through the number of turns of rotation, thereby realizing accurate control on treatment and experimental model production.
According to the novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application, the direction and the distance between the slidable screw bearing device I3 arranged on the outer side and the sliding rod 2 can be adjusted, so that the adjustment of the multi-section multi-angle intervertebral disc degeneration model is realized.
According to the novel rat intervertebral disc mechanical adjusting device disclosed by the embodiment of the application, on one hand, the sliding screw bearing device I3 is convenient to assemble, so that the novel rat intervertebral disc mechanical adjusting device slides on the sliding rod 2; according to the novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application, the position adjusting and controlling component 5 can be used for adjusting and controlling the sliding screw bearing device I3 on the rod 51, and the moving distance can be accurately adjusted and controlled so as to realize the accurate adjustment and control of mechanical loading.
As shown in fig. 4 and fig. 5, the novel rat intervertebral disc mechanical adjusting device of the present invention includes two sets of anti-sliding gaskets 6, which are respectively an anti-sliding gasket i 61 and an anti-sliding gasket ii 62, which are respectively fixed on top walls of the corresponding slidable screw bearing device i 3 and slidable screw bearing device ii 4;
The anti-slip gasket 6 includes an upper gasket 65 and a lower gasket 66; an opening 64 is arranged at the center of each of the upper pad 65 and the lower pad 66; the screw rod of the first fixing bolt 35 is threaded through the hole 64 on the anti-sliding gasket 6 and then screwed into the second screw hole 38 correspondingly arranged on the top wall of the slidable screw bearing device I3 and the slidable screw bearing device II 4;
As shown in fig. 4 and 5, in the novel rat intervertebral disc mechanical adjusting device of the present invention, a plurality of holes 63 through which screws pass are provided on the bottom wall of the upper pad 65 and the top wall of the lower pad 66, and the directions of the holes 63 are perpendicular to the sliding rod 2.
According to the novel rat intervertebral disc mechanical adjusting device disclosed by the embodiment of the application, the anti-sliding gasket 6 is used for fixing the screw and the metal connecting rod, and the plurality of inner parallel pore canals 63 are convenient for fixing the screw; the device is mainly used for fixing the position and the direction of the slidable screw bearing device.
As shown in fig. 4 and 5, in the novel rat disc mechanical adjusting device of the present invention, the bottom walls of the upper pad 65 and the lower pad 66 and the top walls of the slidable screw bearing device i 61 and the anti-sliding pad ii 62 are rough surfaces.
The novel rat intervertebral disc mechanical adjusting device adopts a rough surface design, and can be provided with a frosted surface; is convenient for relatively stable fixation with the frosted surface of the gasket.
As shown in fig. 5, the novel rat intervertebral disc mechanical adjusting device of the present invention has four channels 63, which are symmetrically disposed on two sides of the opening 64;
The diameter of the pore canal 63 is arranged corresponding to the pore canal 63 on the top walls of the slidable screw bearing device I3 and the slidable screw bearing device II 4; the opening 63 is closed to form a space for the screw to pass through.
The novel rat intervertebral disc mechanical adjusting device is provided with the anti-sliding gasket 6 which is respectively arranged corresponding to the sizes of the slidable screw bearing device I3 and the slidable screw bearing device II 4; the pore canal 63 arranged on the bottom wall is required to be symmetrically arranged with the pore canal 63 on the corresponding top wall in size; the opening 63 is closed to form a space for the screw to pass through.
According to the novel rat intervertebral disc mechanical adjusting device disclosed by the embodiment of the application, the adaptive screw 7 is used for fixing the vertebral body, the tail part is designed to be flat, and the T-shaped nailing device 8 is convenient to use for rotary stressing; the front thread of the screw 7 is sized to fit the anatomy of the rat vertebral body, and the nailing device 8 is used in cooperation with the screw 7.
The novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application has the advantages that the specification of the screw penetrating through the pore canal 63 is suitable for the anatomical structures of the lumbar vertebra and the coccyx of the rat, and the screw is suitable for long and short and is convenient to fix.
As shown in fig. 4, the novel mechanical adjusting device for rat intervertebral disc according to the present invention, the slidable screw bearing device i 3 comprises a first fixed block 31, a first through hole 32 penetrating the first fixed block 31, a protruding block 33 disposed at the bottom wall of the first fixed block 31, and an anti-sliding pad i (61) disposed on the top wall of the first fixed block 31;
The sliding rod 2 penetrates through the first through hole 32, and the regulating rod 51 penetrates out of the first screw hole 34 on the protruding block 33;
The anti-slip gasket I61 is buckled on the top wall and is fixed by a first fixing bolt 35;
A third screw hole 36 is formed in a side wall of the first fixing block 31 in a penetrating manner, and is communicated with the first through hole 32; the third screw hole 36 is provided with a second fixing bolt 37, and the screw rod of the second fixing bolt is screwed into the third screw hole 36 and abuts against the sliding rod 2 to fix the position of the sliding screw bearing device I3.
According to the novel rat intervertebral disc mechanical adjusting device disclosed by the embodiment of the application, the middle part of the slidable screw bearing device I3 can penetrate through the top end of the sliding rod 2 from the position of the sliding rod to be fixed, and the fixing is affected by the adjustment of the position adjusting and controlling component 5; the mechanical loading intensity can be controlled through the number of turns of rotation, so that accurate control on treatment and experimental model manufacturing is realized.
As shown in fig. 5, the novel rat intervertebral disc mechanical adjusting device of the invention, the slidable screw bearing device ii 4 comprises a second fixing block 41, a second through hole 42 penetrating through the second fixing block 41, and an anti-sliding gasket ii 62 arranged on the top wall of the second fixing block;
the end part of the sliding rod 2 passes through the second through hole 42;
The anti-slip gasket II 62 is buckled on the top wall and is fixed by a first fixing bolt 35;
A screw hole IV 43 is arranged on one side wall of the second fixing block 41 in a penetrating way and is communicated with the second through hole 42; the fourth screw hole 43 is provided with a third fixing bolt 44, and the screw rod of the third fixing bolt is screwed into the fourth screw hole 43 and abuts against the sliding rod 2 to fix the position of the sliding screw bearing device II 4.
According to the novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application, the sliding screw bearing device II 4 is arranged at the end part of the sliding rod 2 and can slide back and forth along the direction of the sliding rod 2; realizes the adjustment of the multi-section multi-angle intervertebral disc degeneration model.
As shown in fig. 1, the novel rat intervertebral disc mechanical adjusting device of the invention is characterized in that the sliding rod 2 is a circle center rod body made of metal; the diameter is 1.8mm, and the length is 50-60mm; the length of the regulating rod 51 is 20-22mm.
As shown in fig. 1, the length, the width and the height of the slidable screw bearing device I3 and the slidable screw bearing device II 4 of the novel rat intervertebral disc mechanical adjusting device are all 4mm.
As shown in fig. 1, the novel rat intervertebral disc mechanical adjusting device of the invention has the length and width of the slidable screw bearing device I3 of 3mm; the length and width of the slidable screw carrying device II 4 are 3.5mm.
As shown in fig. 1, the novel rat intervertebral disc mechanical adjusting device of the invention is characterized in that the sliding rod 2 and the adjusting rod 51 are made of medical steel; the fixing piece 1, the slidable screw bearing device I3 and the slidable screw bearing device II 4 are all made of medical plastics.
The novel rat intervertebral disc mechanical adjusting device provided by the embodiment of the application has the characteristics of light materials, and avoids extra damage to rats caused by excessive mass.
As shown in fig. 6 and 7, the screw 7 is used for fixing the vertebral body, the tail part is designed to be flat, and the T-shaped nailing device 8 is convenient to use for rotating and stressing; the front thread of the screw 7 is sized to fit the anatomy of the rat vertebral body.
The present invention has been further described with reference to the examples, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. Rat intervertebral disc mechanics adjusting device, its characterized in that:
Comprises a fixing piece (1), a sliding rod (2), a sliding screw bearing device I (3), a sliding screw bearing device II (4) and a position regulating and controlling assembly (5);
one end of the sliding rod (2) is fixedly connected to the inner wall of the fixing piece (1), and the other end of the sliding rod sequentially penetrates through holes in the sliding screw bearing device I (3) and the sliding screw bearing device II (4); the sliding screw bearing device I (3) and the sliding screw bearing device II (4) can slide along the length direction of the sliding rod (2);
the sliding screw bearing device I (3) and the sliding screw bearing device II (4) are fixedly provided with an anti-sliding gasket (6) through bolts, and a pore channel (63) between the anti-sliding gasket (6) and the sliding screw bearing device I (3) or the sliding screw bearing device II (4) is used for fixing screws;
The position regulating and controlling assembly (5) comprises a regulating and controlling rod (51) and a regulating knob (52), and the regulating and controlling rod (51) is in a screw shape; one end of the fixing piece penetrates out of a screw hole I (34) of a protruding block (33) arranged at the bottom wall of the slidable screw bearing device I (3), and the other end of the fixing piece penetrates through a fixing ring (11) and a through hole (12) at the bottom wall of the fixing piece (1) in sequence to be integrally connected with the adjusting knob (52); one end of the fixed ring (11) is fixedly connected with the sliding rod (2);
the anti-slip gaskets (6) are two groups, namely an anti-slip gasket I (61) and an anti-slip gasket II (62), which are respectively fixed on the top walls of the corresponding slidable screw bearing device I (3) and slidable screw bearing device II (4);
The anti-slip gasket (6) comprises an upper gasket (65) and a lower gasket (66); an opening (64) is arranged at the center of each of the upper gasket (65) and the lower gasket (66); the screw rod of the first fixing bolt (35) penetrates through the hole (64) on the anti-sliding gasket (6) and then is screwed into the second screw hole (38) correspondingly arranged on the top wall of the slidable screw bearing device I (3) and the top wall of the slidable screw bearing device II (4);
The bottom wall of the upper gasket (65) and the top wall of the lower gasket (66) are provided with a plurality of holes (63) for screws (7) to pass through, and the directions of the holes (63) are perpendicular to the sliding rod (2);
The sliding screw bearing device I (3) comprises a first fixed block (31), a first through hole (32) penetrating through the first fixed block (31), a bump (33) arranged at the bottom wall of the first fixed block (31) and an anti-sliding gasket I (61) arranged on the top wall of the first fixed block (31);
The sliding rod (2) penetrates through the first through hole (32), and the regulating rod (51) penetrates out of the first screw hole (34) on the protruding block (33);
The anti-slip gasket I (61) is buckled on the top wall and is fixed by a first fixing bolt (35);
A screw hole III (36) is formed in the side wall of one side of the first fixed block (31) in a penetrating manner and is communicated with the first through hole (32); the third screw hole (36) is provided with a second fixing bolt (37), and the screw rod of the second fixing bolt is screwed into the third screw hole (36) and is abutted against the sliding rod (2) to fix the position of the sliding screw bearing device I (3);
the sliding screw bearing device II (4) comprises a second fixed block (41), a second through hole (42) penetrating through the second fixed block and an anti-sliding gasket II (62) arranged on the top wall of the second fixed block (41);
The end part of the sliding rod (2) penetrates out of the second through hole (42);
The anti-sliding gasket II (62) is buckled on the top wall and is fixed by a first fixing bolt (35);
A screw hole IV (43) is formed in the side wall of one side of the second fixed block (41) in a penetrating mode, and the screw hole IV is communicated with the second through hole (42); the screw hole IV (43) is provided with a fixing bolt III (44), and the screw rod of the fixing bolt III is screwed into the screw hole IV (43) and is abutted against the sliding rod (2) to fix the position of the sliding screw bearing device II (4).
2. The rat intervertebral disc mechanical regulating device of claim 1, wherein:
The top surface of the upper gasket (65) and the bottom wall of the lower gasket (66) and the top walls of the slidable screw bearing device I (3) and the anti-sliding gasket II (62) are rough surfaces.
3. The rat intervertebral disc mechanical regulating device of claim 2, wherein:
the number of the pore channels (63) is four, and the pore channels are respectively and symmetrically arranged at two sides of the opening (64) in pairs;
the bottom wall of the upper gasket (65) and the pore canal (63) on the top wall of the lower gasket (66) are correspondingly arranged, and the pore canal (63) is closed to form a space for a screw to pass through.
4. The rat intervertebral disc mechanical regulating device of claim 1, wherein:
The sliding rod (2) is a circle center rod body made of metal; the diameter is 1.8mm, and the length is 50-60mm;
the length of the regulating rod (51) is 20-22mm.
5. The rat intervertebral disc mechanical regulating device of claim 1, wherein:
The length and the width of the slidable screw bearing device I (3) are 3mm;
The length and width of the slidable screw bearing device II (4) are 3.5mm.
6. The rat intervertebral disc mechanical regulating device of claim 1, wherein:
the sliding rod (2) and the regulating rod (51) are made of medical steel;
the fixing piece (1), the slidable screw bearing device I (3) and the slidable screw bearing device II (4) are all made of medical plastics.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010808849.7A CN114073601B (en) | 2020-08-12 | 2020-08-12 | Mechanical regulating device for rat intervertebral disc |
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| CN202010808849.7A CN114073601B (en) | 2020-08-12 | 2020-08-12 | Mechanical regulating device for rat intervertebral disc |
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| CN114073601A CN114073601A (en) | 2022-02-22 |
| CN114073601B true CN114073601B (en) | 2024-04-19 |
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| DE20207847U1 (en) * | 2002-05-21 | 2002-10-10 | Metz Stavenhagen Peter | Device for setting up a human or animal spine and fastening element therefor |
| CN202497132U (en) * | 2011-12-31 | 2012-10-24 | 徐宏光 | Animal intervertebral disc body assistor |
| CN204890247U (en) * | 2015-09-07 | 2015-12-23 | 黄哲宇 | Rattail vertebra pressure device |
| CN109363790A (en) * | 2018-12-18 | 2019-02-22 | 上海市东方医院 | Tail bone intervertebral disc degeneration experimental provision |
| CN109887393A (en) * | 2019-04-24 | 2019-06-14 | 上海市东方医院（同济大学附属东方医院） | Ring-type simulation device for degeneration of coccygeal intervertebral disc |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7972363B2 (en) * | 2005-04-12 | 2011-07-05 | Moskowitz Ahmnon D | Bi-directional fixating/locking transvertebral body screw/intervertebral cage stand-alone constructs and posterior cervical and lumbar interarticulating joint stapling guns and devices for spinal fusion |
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2020
- 2020-08-12 CN CN202010808849.7A patent/CN114073601B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20207847U1 (en) * | 2002-05-21 | 2002-10-10 | Metz Stavenhagen Peter | Device for setting up a human or animal spine and fastening element therefor |
| CN202497132U (en) * | 2011-12-31 | 2012-10-24 | 徐宏光 | Animal intervertebral disc body assistor |
| CN204890247U (en) * | 2015-09-07 | 2015-12-23 | 黄哲宇 | Rattail vertebra pressure device |
| CN109363790A (en) * | 2018-12-18 | 2019-02-22 | 上海市东方医院 | Tail bone intervertebral disc degeneration experimental provision |
| CN109887393A (en) * | 2019-04-24 | 2019-06-14 | 上海市东方医院（同济大学附属东方医院） | Ring-type simulation device for degeneration of coccygeal intervertebral disc |
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| CN114073601A (en) | 2022-02-22 |
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