CN112494185A

CN112494185A - Spinal surgery auxiliary assembly

Info

Publication number: CN112494185A
Application number: CN202011300458.0A
Authority: CN
Inventors: 徐世民
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-03-16

Abstract

The invention belongs to the field of spinal surgery, and particularly relates to spinal surgery auxiliary equipment which comprises a supporting plate, a base, a funnel A, a spine-removing rotary body, a funnel B, an electric driving module A and a bone-crushing mechanism, wherein the bone-crushing mechanism is arranged on the base through two symmetrically-distributed supporting plates, and crushed bones from the bone-crushing mechanism are screened by the funnel A arranged below the bone-crushing mechanism to separate and collect crushed bone particles and crushed bone powder; the bone breaking mechanism is simple in movement structure, and due to the structural characteristics of the bone breaking mechanism, the problem of blockage of broken bone particles is avoided, so that the bone breaking efficiency is effectively improved.

Description

Spinal surgery auxiliary assembly

Technical Field

The invention belongs to the field of spinal surgery, and particularly relates to spinal surgery auxiliary equipment.

Background

At present, spinal fusion is still the main means for treating spinal diseases, is widely applied to spinal instability, degeneration, trauma, tumor and infection, and obtains positive curative effect and prognosis, the spinal surgery treatment mainly takes the bone grafting of self-body bone tissues as the main part, the advantages are that bone cells in the self-body bone tissues are survival self-body bone cells, the biological performance is good, the bone fusion is facilitated, the self-body bone structure and the biomechanical characteristics accord with the bone grafting requirements, and the spinal fusion is free of rejection and good in biocompatibility. In the spinal fusion operation, autologous bones are cut into small particles, the obtained crushed bone particles are used for filling and supporting between adjacent vertebras, and finally, the gaps between the crushed bone particles are filled with crushed bone powder so as to cure or relieve patients.

The broken bone in the spinal fusion is generally cut into small particles from autogenous bone by the bone-crushing forceps or the surgical scissors, however, the broken bone particles cut by the bone-crushing forceps or the surgical scissors have spurs and are uneven in size, the bone-crushing forceps or the surgical scissors cannot obtain bone powder for filling small gaps among the broken bone particles, and the bone-crushing forceps or the surgical scissors waste time and energy in the bone-crushing process and can cause the broken bone to splash all around, which is not favorable for high-efficiency bone crushing.

The problem that broken bones exist in a bone-crushing forceps or a surgical scissors is solved by using mechanical equipment with high efficiency in spinal fusion, but the movement structure is complex, and blockage is easy to generate, so that the bone-crushing efficiency is reduced.

Therefore, it is necessary to design a device which can break bone easily and efficiently and is not easy to block.

The invention designs a spinal surgery auxiliary device to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a spinal surgery auxiliary device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally use, which are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A spinal surgery auxiliary device comprises supporting plates, a base, a funnel A, a spine removing rotary body, a funnel B, an electric drive module A and a bone crushing mechanism, wherein the bone crushing mechanism is arranged on the base through two symmetrically distributed supporting plates, and crushed bones from the bone crushing mechanism are separated and collected through screening of the funnel A arranged below the bone crushing mechanism; the broken bone particles screened by the funnel A enter the horn-shaped burr removing rotary body driven to rotate by the electric drive module A to remove burrs, and the broken bone coming out of the burr removing rotary body is separated and collected by the broken bone particles and the broken bone powder through screening of the funnel B below.

The bone crushing mechanism comprises a shell, a sliding block A, a round rod, a telescopic rod, an electric drive module B, a pressing block, a square frame A, a square rod, a spring B, a telescopic pin, a spring C, a sliding block B, a limiting block, a spring D, a clamping block, a sliding sleeve, a spring E, a connecting rod, a crank wheel B and an electric drive module C, wherein the sliding block A and the square frame A are arranged in the shell between two supporting plates in a sliding fit mode along the vertical direction, and the square frame A is located below the sliding block A; two round rods are symmetrically arranged on two sides of the sliding block A, and each round rod is hinged with a crank wheel A arranged on the outer side of the shell through a telescopic rod to form a crank sliding block mechanism; a spring A for stretching and resetting the telescopic rod is arranged in the telescopic rod; an electric drive module B arranged outside the shell drives the two crank wheels A to synchronously rotate; two connecting blocks are symmetrically arranged on two sides of the square frame A, and a sliding block B arranged on each connecting block is in sliding fit with a sliding sleeve which vertically slides outside the shell on the same side; each sliding sleeve is internally provided with a spring E for resetting the corresponding sliding block B; two sliding chutes B are symmetrically formed in two sides of each sliding block B, a limiting block horizontally slides in each sliding chute B, and a spring D for resetting the corresponding limiting block is arranged in each sliding chute B; the inclined plane B and the inclined plane C on the limiting block are matched with a clamping block arranged on the same side of the inner wall of the sliding sleeve; each sliding sleeve is hinged with a crank wheel B arranged on the outer side of the shell through a connecting rod to form a crank-slider mechanism; an electric drive module C mounted outside the housing drives the two crank wheels B in synchronous rotation.

The inner wall of the square frame A is provided with two annular sliding chutes A which are distributed up and down and are communicated with each other, a plurality of mutually parallel square rods are matched in each sliding chute A in a sliding manner, and the square rods horizontally move along the direction vertical to the square rods; two layers of square rods in the two sliding grooves A are perpendicular to each other and are in contact with each other; a transmission structure for promoting the two square rods to synchronously move towards or away from each other is arranged between the ends of the two square rods at the most lateral side in each layer of square rods; a synchronous structure is arranged between two ends of one lateral-most side rod in each layer; the ends of two adjacent square rods in each layer at the same side are connected through a spring B; the grid formed by the two layers of square rods is matched with the pressing block arranged below the sliding block A.

One end of one side-most square rod in each layer is provided with a telescopic pin which can be stretched and contracted along the length direction parallel to the square rod; the telescopic pin is internally provided with a spring C for telescopic resetting; the telescopic pin penetrates through the movable groove D on the square frame A to be matched with the guide groove on the corresponding side of the inner wall of the shell, so that the distance between any two adjacent square rods on each layer is increased along with the distance of one end of the square frame A.

As a further improvement of the technology, the lower side of the funnel A is provided with a net structure, and the crushed bone powder coming out of the bone crushing mechanism falls into a receiving container A arranged on a partition board between two supporting plates through the net structure on the funnel A; the inner wall of the thorn-removing rotary body is evenly and densely provided with bulges. The projections can effectively remove the spurs on the broken bone particles entering the despun gyroid. The deburring rotary body is rotationally matched with the fixed sleeve arranged between the two supporting plates, and a circular ring arranged on the deburring rotary body rotates in a circular groove on the inner wall of the fixed sleeve; a gear A arranged on an output shaft of the electric drive module A is meshed with a gear B arranged on the thorn-removing rotary body; the lower side of the funnel B is provided with a reticular structure, the broken bone powder falling into the deburring broken bone of the funnel B from the deburring rotary body falls into a receiving container B placed on the base through the reticular structure on the funnel B, and the broken bone particles falling into the deburring broken bone of the funnel B from the deburring rotary body fall into a receiving container C placed on the base.

As a further improvement of the technology, the telescopic rod consists of an outer sleeve A and an inner rod sliding in a sliding sleeve A; the inner rod is symmetrically provided with two guide blocks A which slide in two guide grooves E on the inner wall of the outer sleeve A respectively; the spring A is positioned in the outer sleeve A; one end of the spring A is connected with the inner wall of the outer sleeve A, and the other end of the spring A is connected with the inner rod. The cooperation of guide block A and guide way E plays the positioning guide effect to the slip of interior pole in overcoat A, guarantees simultaneously that interior pole can not break away from overcoat A.

As a further improvement of the technology, the round rod is movably arranged in a movable groove A on the shell; a gear ring A is arranged on the rim of the crank wheel A, the gear ring A is meshed with a gear C arranged on the outer side of the shell, the gear C is meshed with a gear D arranged on the outer side of the shell, the gear D is meshed with a gear E arranged on the outer side of the shell, and the gear E is meshed with a gear F arranged on the shaft A; the shaft A is in rotating fit with two supports A arranged on the outer side of the shell; a gear H arranged on an output shaft of the electric drive module B is meshed with a gear G arranged on the shaft A; and each round rod is provided with a baffle A matched with the corresponding movable groove A.

As a further improvement of the technology, the connecting block is movably arranged in a movable groove B on the shell; two baffle plates B matched with the corresponding movable grooves B are symmetrically arranged at the upper end and the lower end of the sliding sleeve; a gear ring B is arranged on the rim of the crank wheel B, the gear ring B is meshed with a gear K arranged on the outer side of the shell, the gear K is meshed with a gear L arranged on the outer side of the shell, the gear L is meshed with a gear M arranged on the shell, the gear M is meshed with a gear N arranged on the shell, and the gear N is meshed with a gear O arranged on the shaft C; the shaft C is in rotating fit with two supports C arranged on the shell; a gear Q mounted on the output shaft of the electric drive module C meshes with a gear P mounted on the shaft C.

As a further improvement of the technology, a frame B for supporting the frame A is arranged in the shell; two T-shaped blocks are symmetrically arranged at two ends of each square rod, and each T-shaped block slides in a T-shaped groove on the corresponding sliding chute A; racks A are arranged on the T-shaped blocks at the same side ends of the two square rods at the most lateral side in each layer of square rods, and the two racks A at the same side end move in the movable grooves C in the corresponding T-shaped grooves; two racks A at the same side end are simultaneously meshed with a gear I arranged in a corresponding movable groove C; two racks B are symmetrically arranged at two ends of one square rod at the most lateral side in each layer of square rods, the two racks B are respectively meshed with two gears J arranged on a shaft B, and the shaft B is in rotating fit with two supports B arranged in the sliding chute A; two ends of the spring B are respectively connected with the inner walls of the circular grooves on the two adjacent T-shaped blocks. The T-shaped block is matched with the T-shaped groove to play a role in positioning and guiding the movement of the corresponding square rod.

As a further improvement of the technology, the telescopic pin consists of an outer sleeve B and an inner pin sliding in the outer sleeve B, and a spring C is positioned in the outer sleeve B; one end of the spring B is connected with the inner wall of the outer sleeve B, and the other end of the spring B is connected with the inner pin; the telescopic pin is movably arranged in a movable groove D on the square frame A; the inner pin of the telescopic pin is matched with the corresponding guide groove; two guide blocks C are symmetrically arranged on the limiting block and respectively slide in two guide grooves F on the inner wall of the corresponding sliding groove B; the sliding block B is provided with a guide block B which slides in a guide groove G on the inner wall of the sliding sleeve; two trapezoidal guide bars are symmetrically arranged on each sliding sleeve, and the two trapezoidal guide bars respectively slide in two trapezoidal guide grooves on the outer side of the shell; the side wall of the shell is provided with a feed inlet, the feed inlet is provided with a socket, and the socket is matched with a plug board. The cooperation of guide block C and guide way F plays the location guide effect to the stopper in the slip of corresponding spout B, prevents simultaneously that the stopper from breaking away from spout B. The guide block B is matched with the guide groove G to play a role in positioning and guiding the vertical sliding of the sliding block B in the sliding sleeve. The matching of the trapezoid guide strip and the trapezoid guide groove plays a role in positioning and guiding the vertical sliding of the sliding sleeve outside the shell.

As a further improvement of the technology, the guide groove consists of a guide groove A, a guide groove B, a guide groove C and a guide groove D, wherein the guide groove A and the guide groove B are equally deep, and the guide groove C and the guide groove D are equally deep; the guide groove A is deeper than the guide groove D; a transitional inclined surface A is arranged between the guide groove B and the guide groove C.

Compared with the traditional bone crushing mode, the bone crushing mechanism provided by the invention has the advantages that autologous bones are crushed into bone crushing particles with uniform sizes through the bone crushing mechanism, and the bone crushing particles from the bone crushing mechanism achieve the purpose of removing burs under the action of the bur removing revolution body, so that relatively round bone crushing particles are obtained, and the filling support of a spine is prevented from being influenced by the burs of the bone crushing particles. Because the bone crushing process is carried out in the shell in a closed manner, the bone crushing operation cannot cause the result of bone crushing splashing, and the bone crushing efficiency is higher.

In addition, the bone breaking mechanism is simple in movement structure, and due to the structural characteristics of the bone breaking mechanism, the problem of blockage of broken bone particles is avoided, so that the bone breaking efficiency is effectively improved. The invention has simple structure and better use effect.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention and its entirety.

Fig. 2 is a schematic partial cross-sectional view of the present invention.

Fig. 3 is a schematic view of the bone-breaking mechanism from two perspectives.

Fig. 4 is a schematic cross-sectional view of a bone-breaking mechanism from two perspectives.

FIG. 5 is a schematic cross-sectional view of the square bar, T-shaped block, square frame A, connecting rod, slide block B, spring E, sliding sleeve and connecting rod.

FIG. 6 is a schematic cross-sectional view of the connection rod, the sliding block B, the sliding sleeve and the housing.

FIG. 7 is a schematic section view of the slider B, the limiting block, the fixture block and the sliding sleeve.

FIG. 8 is a schematic cross-sectional view of the slider A, the round bar, the telescopic bar, the crank wheel A and the telescopic bar.

Fig. 9 is a schematic cross-sectional view of the guide groove and the fit of the guide groove and the inner pin.

Fig. 10 is a schematic cross-sectional view of the housing and its view.

FIG. 11 is a schematic view of the slide block A, the round bar and the press block.

FIG. 12 is a cross-sectional view of the square bar, the T-shaped block, the rack A and the gear I.

FIG. 13 is a cross-sectional view of the frame A, the retractable pin, the T-shaped block, the spring B and the T-shaped block.

Fig. 14 is a cross-sectional view of the T-block, the retractable pin and the movable slot D.

Fig. 15 is a schematic cross-sectional view of block model A, T, square bar, rack B, gear J, shaft B and support B from two perspectives.

Fig. 16 is a block a and its cross-sectional view.

Fig. 17 is a schematic diagram of the gearing relationship within block a.

FIG. 18 is a schematic view of a T-block.

Fig. 19 is a schematic sectional view of the slider B and its structure.

FIG. 20 is a schematic view of a stopper.

Number designation in the figures: 1. a support plate; 2. a base; 3. a funnel A; 4. a receiving container A; 5. a partition plate; 6. removing the thorn of the gyroid; 7. a protrusion; 8. a circular ring; 9. fixing a sleeve; 10. an electric drive module A; 11. a gear A; 12. a gear B; 13. a funnel B; 14. a receiving container B; 15. receiving a container C; 17. a bone-breaking mechanism; 18. a housing; 19. a movable groove A; 20. a feed inlet; 21. a socket; 22. inserting plates; 23. a movable groove B; 24. a trapezoidal guide groove; 25. a guide groove; 26. a guide groove A; 27. a guide groove B; 28. a guide groove C; 29. a guide groove D; 30. an inclined plane A; 31. a slide block A; 32. a round bar; 33. a telescopic rod; 34. an inner rod; 35. a guide block A; 36. a spring A; 37. a jacket A; 38. a guide groove E; 40. a crank wheel A; 41. a gear ring A; 42. a gear C; 43. a gear D; 44. a gear E; 45. a gear F; 46. an axis A; 47. a support A; 48. a gear G; 49. a gear H; 50. an electric drive module B; 51. a baffle A; 52. briquetting; 53. a block A; 54. a chute A; 55. a T-shaped groove; 56. a movable groove C; 57. a movable groove D; 58. connecting blocks; 59. a block B; 60. a square bar; 61. a T-shaped block; 62. a circular groove; 63. a spring B; 64. a rack A; 65. a gear I; 66. a rack B; 67. gear J; 68. a shaft B; 69. a support B; 70. a retractable pin; 71. a jacket B; 72. a spring C; 73. an inner pin; 74. a slide block B; 75. a chute B; 76. a guide groove F; 77. a guide block B; 78. a limiting block; 79. a bevel B; 80. a bevel C; 81. a guide block C; 82. a spring D; 83. a clamping block; 84. a sliding sleeve; 85. a guide groove G; 86. a spring E; 87. a baffle B; 88. a trapezoidal conducting bar; 89. a connecting rod; 90. a crank wheel B; 91. a gear ring B; 92. a gear K; 93. a gear L; 94. a gear M; 95. a gear N; 96. a gear O; 97. an axis C; 98. a support C; 99. a gear P; 100. a gear Q; 101. the electric drive module C.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1 and 2, it comprises a supporting plate 1, a base 2, a funnel A3, a spine removing rotary body 6, a funnel B13, an electric drive module a10 and a bone crushing mechanism 17, wherein as shown in fig. 1, the bone crushing mechanism 17 is mounted on the base 2 through two supporting plates 1 which are symmetrically distributed, and crushed bone coming out of the bone crushing mechanism 17 is screened by a funnel A3 mounted below to separate and collect crushed bone particles and crushed bone powder; the broken bone particles screened by the funnel A3 enter the horn-shaped despun gyroid 6 driven to rotate by the electric drive module A10 to remove the spurs, and the broken bone coming out of the despun gyroid 6 is screened by the funnel B13 at the lower part to separate and collect the broken bone particles and the broken bone powder again.

As shown in fig. 3 and 4, the bone-crushing mechanism 17 includes a housing 18, a slider a31, a round bar 32, a telescopic bar 33, an electric drive module B50, a pressing block 52, a square bar a53, a square bar 60, a spring B63, a telescopic pin 70, a spring C72, a slider B74, a limit block 78, a spring D82, a latch 83, a sliding sleeve 84, a spring E86, a connecting rod 89, a crank wheel B90 and an electric drive module C101, wherein as shown in fig. 4, the slider a31 and the square bar a53 are slidably fitted in the vertical direction in the housing 18 installed between two support plates 1, and the square a53 is located below the slider a 31; as shown in fig. 4, 8 and 11, two round rods 32 are symmetrically mounted on both sides of the slider a31, and each round rod 32 is hinged with a crank wheel a40 mounted on the outer side of the housing 18 through a telescopic rod 33 to form a crank slider mechanism; a spring A36 for extending and retracting the telescopic rod 33 is arranged in the telescopic rod; as shown in fig. 3 and 4, an electric drive module B50 mounted on the outside of the housing 18 drives two crank wheels a40 to rotate synchronously; as shown in fig. 4, 5 and 16, two connecting blocks 58 are symmetrically arranged on two sides of the box a53, and a sliding block B74 arranged on each connecting block 58 is in sliding fit with a sliding sleeve 84 vertically sliding on the same side outside the shell 18; a spring E86 for resetting the corresponding slide block B74 is arranged in each sliding sleeve 84; as shown in fig. 7, 19 and 20, two sliding grooves B75 are symmetrically formed in two sides of each sliding block B74, a limiting block 78 horizontally slides in each sliding groove B75, and a spring D82 which resets the corresponding limiting block 78 is arranged in each sliding groove B75; the inclined plane B79 and the inclined plane C80 on the limiting block 78 are matched with a fixture block 83 which is arranged on the same side of the inner wall of the sliding sleeve 84; as shown in fig. 3, 4 and 5, each sliding sleeve 84 is hinged to a crank wheel B90 mounted on the outer side of the housing 18 through a connecting rod 89 to form a crank-slider mechanism; an electric drive module C101 mounted outside the housing 18 drives the two crank wheels B90 in synchronous rotation.

As shown in fig. 12, 13 and 16, the inner wall of the box a53 is provided with two annular chutes a54 which are distributed up and down and are communicated with each other, each chute a54 is slidably fitted with a plurality of square rods 60 which are parallel to each other, and the square rods 60 horizontally move in a direction perpendicular to the direction of the square rods; the two layers of square rods 60 in the two sliding chutes A54 are perpendicular to each other and are in contact with each other; as shown in fig. 15 and 17, a transmission structure is provided between the same side ends of the two side rods 60 at the most lateral side of each layer of square rods 60 for urging the two side rods to move synchronously toward or away from each other; a synchronization structure is provided between both ends of one of the most lateral side bars 60 in each layer; as shown in fig. 4, 11 and 13, the same side ends of two adjacent square rods 60 in each layer are connected through a spring B63; the grid formed by the two layers of square bars 60 is fitted with a press block 52 mounted below the slide a 31.

As shown in fig. 14, 16 and 17, one end of one of the outermost side bars 60 in each layer is mounted with a telescopic pin 70 which is telescopic in a direction parallel to the length direction of the bar 60; the telescopic pin 70 is internally provided with a spring C72 for telescopic return; as shown in fig. 9 and 10, the telescopic pin 70 passes through the movable slot D57 of the block a53 to be matched with the guide slot 25 on the corresponding side of the inner wall of the shell 18, so that the distance between any two adjacent square rods 60 of each layer is increased after the block a53 rises for a certain distance.

As shown in fig. 1, the lower side of the funnel A3 has a net structure, and the crushed bone powder from the bone crushing mechanism 17 falls into a receiving container a4 placed on the partition 5 installed between the two supporting plates 1 through the net structure on the funnel A3; as shown in figure 2, the inner wall of the despun revolution body 6 is evenly and densely provided with bulges 7. The projections 7 are effective in removing the spurs from the crushed bone particles entering the derricking swivel 6. The rotary body 6 is matched with a fixed sleeve 9 arranged between the two supporting plates 1 in a rotating way, and a ring 8 arranged on the rotary body 6 rotates in a ring groove on the inner wall of the fixed sleeve 9; a gear a11 mounted on the output shaft of the electric drive module a10 meshes with a gear B12 mounted on the despun rotator 6; the lower side of the funnel B13 has a net structure, and the crushed bone powder falling from the despun gyroid 6 into the despun crushed bone of the funnel B13 falls through the net structure on the funnel B13 into the receiving container B14 placed on the base 2, and the crushed bone particles falling from the despun gyroid 6 into the despun crushed bone of the funnel B13 fall into the receiving container C15 placed on the base 2.

As shown in fig. 8, the telescopic rod 33 is composed of an outer sleeve a37 and an inner rod 34 sliding in a sliding sleeve 84A; two guide blocks A35 are symmetrically arranged on the inner rod 34, and the two guide blocks A35 are respectively slid in two guide grooves E38 on the inner wall of the outer sleeve A37; spring A36 is located in housing A37; one end of the spring A36 is connected with the inner wall of the outer sleeve A37, and the other end is connected with the inner rod 34. The cooperation of the guide block A35 and the guide groove E38 plays a positioning and guiding role in the sliding of the inner rod 34 in the outer sleeve A37, and simultaneously ensures that the inner rod 34 cannot be separated from the outer sleeve A37.

As shown in fig. 8 and 10, the round bar 32 is movable in a movable groove a19 on the housing 18; as shown in fig. 3, a ring gear a41 is mounted on a rim of crank wheel a40, ring gear a41 meshes with gear C42 mounted on the outside of case 18, gear C42 meshes with gear D43 mounted on the outside of case 18, gear D43 meshes with gear E44 mounted on the outside of case 18, and gear E44 meshes with gear F45 mounted on shaft a 46; the shaft a46 is in rotary engagement with two abutments a47 mounted on the outside of the housing 18; the gear H49 mounted on the output shaft of the electric drive module B50 meshes with the gear G48 mounted on the shaft a 46; each circular rod 32 is provided with a baffle plate A51 which is matched with the corresponding movable groove A19.

As shown in fig. 5 and 10, the connecting block 58 is movably arranged in a movable groove B23 on the shell 18; as shown in fig. 4, 5 and 10, two baffles B87 matched with the corresponding movable grooves B23 are symmetrically arranged at the upper end and the lower end of the sliding sleeve 84; as shown in fig. 3, a ring gear B91 is mounted on a rim of crank wheel B90, ring gear B91 meshes with gear K92 mounted on the outer side of case 18, gear K92 meshes with gear L93 mounted on the outer side of case 18, gear L93 meshes with gear M94 mounted on case 18, gear M94 meshes with gear N95 mounted on case 18, and gear N95 meshes with gear O96 mounted on shaft C97; the shaft C97 is in rotary engagement with two seats C98 mounted on the casing 18; the gear Q100 mounted on the output shaft of the electric drive module C101 meshes with the gear P99 mounted on the shaft C97.

As shown in fig. 4 and 10, a block B59 is mounted in the housing 18 to support the block a 53; as shown in fig. 12, 16 and 17, two T-shaped blocks 61 are symmetrically mounted at both ends of each square rod 60, and each T-shaped block 61 slides in a T-shaped groove 55 on a corresponding sliding groove a 54; as shown in fig. 15, 16 and 17, the T-shaped blocks 61 at the same side ends of the two sidemost square bars 60 in each layer of square bars 60 are respectively provided with a rack a64, and the two racks a64 at the same side end are movable in the movable grooves C56 in the corresponding T-shaped grooves 55; two racks A64 at the same side end are simultaneously meshed with a gear I65 arranged in a corresponding movable groove C56; two racks B66 are symmetrically arranged at two ends of one square rod 60 at the most lateral side in each layer of square rods 60, the two racks B66 are respectively meshed with two gears J67 arranged on a shaft B68, and the shaft B68 is in rotating fit with two supports B69 arranged in a sliding groove A54; as shown in fig. 13 and 18, two ends of the spring B63 are respectively connected with the inner walls of the circular grooves 62 on two adjacent T-shaped blocks 61. The T-shaped block 61 and the T-shaped groove 55 are matched to play a role in positioning and guiding the movement of the corresponding square rod 60.

As shown in fig. 13 and 14, the retractable pin 70 comprises an outer sleeve B71 and an inner pin 73 sliding in an outer sleeve B71, and a spring C72 is positioned in the outer sleeve B71; one end of the spring B63 is connected with the inner wall of the outer sleeve B71, and the other end is connected with the inner pin 73; retractable pin 70 is moved in moving slot D57 at box A53; the inner pins 73 of the telescopic pins 70 cooperate with the respective guide grooves 25; as shown in fig. 7 and 19, two guide blocks C81 are symmetrically installed on the limit block 78, and the two guide blocks C81 respectively slide in two guide grooves F76 on the inner wall of the corresponding sliding groove B75; as shown in fig. 5, 6 and 10, a guide block B77 is mounted on the sliding block B74, and a guide block B77 slides in a guide groove G85 on the inner wall of the sliding sleeve 84; two trapezoidal guide bars 88 are symmetrically installed on each sliding sleeve 84, and the two trapezoidal guide bars 88 respectively slide in the two trapezoidal guide grooves 24 on the outer side of the shell 18; as shown in fig. 3 and 10, a filling opening 20 is formed in a side wall of the housing 18, a socket 21 is mounted at the filling opening 20, and an insertion plate 22 is fitted on the socket 21. The cooperation of the guide block C81 and the guide groove F76 plays a positioning and guiding role in the sliding of the limit block 78 in the corresponding slide groove B75, and prevents the limit block 78 from disengaging from the slide groove B75. The cooperation of the guide block B77 and the guide groove G85 plays a positioning and guiding role in the vertical sliding of the slide block B74 in the slide sleeve 84. The trapezoidal guide strip 88 and the trapezoidal guide groove 24 are matched to play a positioning and guiding role in the vertical sliding of the sliding sleeve 84 outside the shell 18.

As shown in fig. 9, the guide groove 25 is composed of a guide groove a26, a guide groove B27, a guide groove C28 and a guide groove D29, the guide groove a26 and the guide groove B27 are equally deep, and the guide groove C28 and the guide groove D29 are equally deep; guide groove a26 is deeper than guide groove D29; guide slot B27 and guide slot C28 have a transitional slope a30 therebetween.

The working process of the invention is as follows: in the initial state, box A53 is at its lowest extreme position and in contact with box B59. The distance between any two adjacent square bars 60 in each layer of square bars 60 is equal, the distance between two adjacent square bars 60 is at the minimum, two adjacent T-shaped blocks 61 are attached to each other, and the spring B63 is in a pre-stretched state. The inner pin 73 of the telescopic pin 70 is located at the bottom of the guide groove a26 in the corresponding guide groove 25. The guide block B77 is located at the uppermost extreme position of the corresponding guide groove G85. The sliding sleeve 84 is located at its lowermost limit. The limiting block 78 is located above the corresponding latch 83, the inclined surface B79 on the limiting block 78 contacts with the corresponding latch 83, and the spring E86 is in a pre-tensioned state. The distance between the sliding sleeve 84 and the center of the corresponding crank wheel B90 is greatest. The slider a31 is at its uppermost extreme position within the housing 18, and both telescoping rods 33 are at their minimum compressed state. The spacing between the press block 52 and the upper square rod 60 is the largest. The distance between the circular rod 32 and the center of the corresponding crank wheel a40 is the smallest, and the circular rod 32 is located at the uppermost extreme position of the corresponding movable slot a 19. Spring a36 is always in tension.

When bone crushing is desired using the present invention, the electric drive module A10, the electric drive module B50, and the electric drive module C101 are activated simultaneously, with the electric drive module A10 operating continuously and the electric drive module B50 operating alternately with the electric drive module C101.

The electric drive module a10 drives the despun rotator 6 to rotate relative to the pouch 9 via the gear a11 and the gear B12.

When the electric drive module B50 runs once, the electric drive module B50 drives the two gears F45 to synchronously rotate through the gear H49, the gear G48 and the shaft A46 in sequence, and the two gears F45 drive the corresponding crank wheel A40 to rotate through the corresponding gear E44, the gear D43, the gear C42 and the gear ring A41. When the electric drive module C101 runs once, the electric drive module C drives the two gears O96 to synchronously rotate through the gear Q100, the gear P99 and the shaft C97, and the two gears O96 drive the corresponding crank wheels B90 to rotate through the corresponding gear N95, the gear M94, the gear L93, the gear K92 and the gear ring B91.

When the electric drive module B50 drives the two crank wheels A40 to synchronously rotate through a series of transmission, the two crank wheels A40 drive the sliding block A31 to vertically move downwards through the corresponding telescopic rod 33 and the round rod 32 respectively. When the vertically downward moving slide A31 meets and interacts with the crushed bone located on the grid of square bars 60, the crushed bone is squeezed into particles of crushed bone of a suitable size by the moving slide A31. The garrulous bone granule of production falls into below rotatory down on the rotatory body 6 inner wall that spins that removes of below through two-layer net square pole 60 in below and funnel A3 of below, removes the protruding 7 of evenly distributed on the body 6 inner wall that spins and the garrulous bone granule interact that falls into for the bur on the garrulous bone granule obtains effective grinding, thereby obtains the garrulous bone granule that the smooth no edges and corners of surface pricked suddenly, effectively avoids patient to have the prickle that pricks and produce because of garrulous bone granule after the backbone is filled.

Fall into the body 6 in-process that despin through funnel A3 at garrulous bone granule, garrulous bone powder among the garrulous bone granule falls into in the receiving container A4 of below through the network structure of funnel A3 downside and concentrates the collection, be convenient for after being filled by garrulous bone granule at patient's backbone, effectively fill the gap between the garrulous bone granule with the garrulous bone powder of collection, reduce the relative motion between the garrulous bone granule that is in the filling state for the backbone supports effectively firmly more.

The broken bone particles which are outthrust by the despun gyroid 6 fall into a receiving container C15 arranged on the base 2 through a hopper B13 under the self-gravity action to be collected. Get rid of the broken bone granule of bur at the in-process through funnel B13, the broken bone powder that the broken bone granule was got rid of the bur in-process and is produced by the despun gyroid 6 falls into the receiving container B14 of placing on the base 2 through the network structure of funnel B13 downside and collects, be convenient for patient's backbone after being filled by the broken bone granule, effectively fill with the gap between the broken bone powder of collecting with the broken bone powder between the broken bone granule, reduce the relative motion between the broken bone granule that is in the filling state, make the backbone support more effectively firm.

During the process of extruding the broken bone by the sliding block A31, partial broken bone particles can enter the gap between any two adjacent square bars 60 in each layer of square bars 60 below and be blocked in the gap between two adjacent square bars 60 to block the grid structure formed by the two layers of square bars 60.

When the electric drive module B50 drives the crank wheel a40 through a series of drives to rotate half a revolution, the slide a31 is preferably positioned to its lower most extreme position. In the process that the sliding block A31 extrudes broken bones, the two telescopic rods 33 simultaneously contract to a certain extent, and the spring A36 in the telescopic rods 33 is compressed to store energy. The contraction of the telescopic rod 33 reduces the impact of the sliding block A31 caused by instant extrusion of broken bones, protects a crank sliding block mechanism formed by the crank wheel A40, the telescopic rod 33, the round rod 32 and the sliding block A31 from being damaged, and prolongs the service life of the crank sliding block mechanism. With the electric drive module B50 driving the crank wheel A40 to continue rotating through a series of transmission, the two crank wheels A40 simultaneously drive the sliding block A31 to vertically move upwards from the lowest extreme position through a series of transmission for resetting, and the two telescopic rods 33 respectively extend and reset under the action of the corresponding springs A36. When the two crank wheels A40 simultaneously drive the sliding block A31 to reset through a series of transmission, the control system controls the electric drive module B50 to stop running. At the same time, the control system controls the electric drive module C101 to start operating.

The electric drive module C101 drives the two crank wheels B90 to rotate through a series of transmission, the two crank wheels B90 respectively drive the box A53 to vertically move upwards through the corresponding connecting rod 89, the sliding sleeve 84, the clamping block 83, the limiting block 78, the sliding block B74 and the connecting block 58, and the box A53 drives all the components mounted on the box A to synchronously move. The inner pins 73 of the two telescopic pins 70 are vertically upwardly moved in the guide grooves a26 of the corresponding guide grooves 25, respectively, and the crushed bone particles caught between the adjacent two square bars 60 are accelerated vertically upwardly according to the block a 53.

When the crank wheel B90 is rotated by 90 degrees, the inner pins 73 of the two telescopic pins 70 reach right at the guide grooves B27 of the corresponding guide grooves 25, respectively. As the electric drive module C101 continues to rise through a series of transmissions, the inner pins 73 of the two telescopic pins 70 move horizontally along the guide slots B27 in the corresponding guide slots 25. Each telescopic pin 70 is driven by the corresponding inner pin 73 to respectively drive the corresponding outermost side square rod 60 in the corresponding layer to move horizontally through the corresponding T-shaped block 61, and the T-shaped block 61 connected with the telescopic pin 70 drives the other outermost side square rod 60 in the same layer to move horizontally in the opposite direction through the corresponding rack A64, the gear I65 and the rack A64 arranged on the T-shaped block 61 at one end of the other outermost side square rod 60, so that the two outermost side square rods 60 in the same layer move oppositely at the same speed.

For the most lateral side bar 60 connected with the T-shaped block 61 provided with the telescopic pin 70, one end of the bar 60 directly connected with the T-shaped block 61 provided with the telescopic pin 70 drives the other end of the bar 60 to move synchronously through the rack B66, the gear J67, the shaft B68 and the rack B66 arranged at the other end of the bar 60, so that the bar 60 cannot deflect during the movement. The two ends of the square bar 60 are driven by a series of transmission respectively to cause the two ends of the square bar 60 at the other most lateral side of the same layer to synchronously move and deflect.

In the process that the two outermost side square bars 60 of the same layer of square bars 60 in the box a53 horizontally move back to back, the two outermost side square bars 60 respectively drive the adjacent square bars 60 to move in the same direction through the two corresponding springs B63 symmetrically distributed at the two ends.

When the inner pins 73 of the two telescopic pins 70 reach the end of the guide grooves B27 of the respective guide grooves 25 simultaneously as the electric drive module C101 continues to operate, the rotation angle of the two crank wheels B90 is less than 180 degrees, and at this time the inner pins 73 of the telescopic pins 70 stop moving vertically upward under the stop of the horizontal guide grooves C28, the movement vertically upward of the block a53 reaches the limit, the distance between the two most lateral side bars 60 in each layer of the square bars 60 in the block a53 reaches the maximum, the distance between the adjacent two levers in the same layer of the square bars 60 increases to the limit, and the plurality of springs B63 are pulled to the limit. At this time, the two layers of square bars 60 in the box a53 are all reset instantly by the reset action of the corresponding springs B63 and return to the initial spacing state of the two adjacent square bars 60, and the inner pin 73 of the telescopic pin 70 installed in each layer of square bars 60 is driven by the corresponding T-shaped block 61 to enter the guide groove C28 from the guide groove B27 under the guidance of the inclined surface a30 and reach the guide groove D29 of the corresponding guide groove 25 instantly.

When the distance between two adjacent square rods 60 in each layer of square rods 60 in the block A53 is increased, the movement speed of the bone crushing particles which move upwards in the vertical direction along with the acceleration of the block A53 under the clamping of the two square rods 60 is maximized, and the block A53 starts the deceleration movement in the vertical direction under the driving of the corresponding crank wheel B90, so that the bone crushing particles clamped by the two levers lose the clamping of the two square rods 60 and are separated from the square rods 60 under the inertia effect to continue the vertical upwards movement at a speed which is larger than that of the square rods 60. After the adjacent two square rods 60 in the same layer are relatively reset, the broken bone particles separated from the square rods 60 fall on the square rod 60 at the uppermost layer again to wait for the next extrusion and fragmentation of the pressing block 52.

When the electric drive module C101 drives the two crank wheels B90 to rotate 180 degrees through a series of transmission, each sliding sleeve 84 drives the corresponding two blocks 83 to simultaneously move vertically upwards over the two limit blocks 78 on the corresponding sliding block B74 and reach the limit position, and the sliding block B74 and the corresponding sliding sleeve 84 move relatively again, so that the spring E86 in the sliding sleeve 84 is further stretched to store energy. As the electric drive module C101 continues to rotate the two crank wheels B90, the two crank wheels B90 begin to reset in the housing 18 through a series of gear boxes a 53.

When the block a53 reaches the initial position in the housing 18, the inner pins 73 of the two telescopic pins 70 are reset along the guide grooves D29 and a26 in the respective guide grooves 25, while the rotation of the two crank wheels B90 has not yet reached 360 degrees. As the electric drive module C101 continues to rotate the two crank wheels B90 through a series of transmissions, the two crank wheels B90 each drive the respective sliding sleeve 84 through a series of transmissions to produce a vertical upward movement relative to the respective sliding block B74. When the crank wheel B90 just rotates for 360 degrees, the sliding sleeve 84 just resets relative to the corresponding sliding block B74, and the two clamping blocks 83 in the sliding sleeve 84B just vertically and downwards pass through the two limiting blocks 78 on the corresponding sliding block B74. At this time, the control system controls the electric drive module C101 to stop running and simultaneously drives the electric drive module B50 to run again, so that the electric drive module B50 and the electric drive module C101 are reciprocally operated alternately to realize reciprocal fracture of the crushed bone in the housing 18, thereby obtaining the crushed bone particles with uniform sizes.

When the latch 83 mounted in the sliding sleeve 84 vertically passes over the corresponding stopper 78 with respect to the corresponding slider B74, the latch 83 interacts with the inclined surface B79 on the stopper 78, so that the stopper 78 contracts inward of the corresponding sliding groove B75 and compresses the corresponding spring D82. When the latch 83 vertically passes over the stopper 78, the stopper 78 is instantaneously restored by the restoring action of the corresponding spring D82.

When the latch 83 mounted in the sliding sleeve 84 vertically passes downward over the corresponding stopper 78 relative to the corresponding slider B74, the latch 83 interacts with the inclined surface C80 on the stopper 78, so that the stopper 78 contracts inward of the corresponding sliding groove B75 and compresses the corresponding spring D82. When the latch 83 vertically passes downward over the stopper 78, the stopper 78 is instantaneously restored by the restoring action of the corresponding spring D82.

In conclusion, the beneficial effects of the invention are as follows: according to the invention, autologous bones are broken into bone breaking particles with uniform sizes through the bone breaking mechanism 17, and the bone breaking particles from the bone breaking mechanism 17 reach the purpose of removing the spurs under the action of the spur removing gyroid 6, so that relatively round bone breaking particles are obtained, and the bone breaking particles are prevented from influencing the filling support of the vertebral column due to the spurs. Because the bone crushing process is performed in the shell 18 in a closed mode, the bone crushing operation cannot cause the bone crushing to splash, and the bone crushing efficiency is high.

In addition, the bone breaking mechanism is simple in movement structure, and due to the structural characteristics of the bone breaking mechanism 17, the problem of blockage of broken bone particles is avoided, so that the bone breaking efficiency is effectively improved.

Claims

1. A spinal surgical assistance apparatus, characterized by: the bone crushing machine comprises supporting plates, a base, a funnel A, a spine removing rotary body, a funnel B, an electric driving module A and a bone crushing mechanism, wherein the bone crushing mechanism is arranged on the base through two symmetrically distributed supporting plates, and crushed bones from the bone crushing mechanism are separated and collected by screening of the funnel A arranged below the bone crushing mechanism; the broken bone particles screened by the funnel A enter the horn-shaped burr removing rotary body driven to rotate by the electric drive module A to remove burrs, and the broken bone coming out of the burr removing rotary body is screened by the funnel B below to separate and collect the broken bone particles and the broken bone powder again;

the bone crushing mechanism comprises a shell, a sliding block A, a round rod, a telescopic rod, an electric drive module B, a pressing block, a square frame A, a square rod, a spring B, a telescopic pin, a spring C, a sliding block B, a limiting block, a spring D, a clamping block, a sliding sleeve, a spring E, a connecting rod, a crank wheel B and an electric drive module C, wherein the sliding block A and the square frame A are arranged in the shell between two supporting plates in a sliding fit mode along the vertical direction, and the square frame A is located below the sliding block A; two round rods are symmetrically arranged on two sides of the sliding block A, and each round rod is hinged with a crank wheel A arranged on the outer side of the shell through a telescopic rod to form a crank sliding block mechanism; a spring A for stretching and resetting the telescopic rod is arranged in the telescopic rod; an electric drive module B arranged outside the shell drives the two crank wheels A to synchronously rotate; two connecting blocks are symmetrically arranged on two sides of the square frame A, and a sliding block B arranged on each connecting block is in sliding fit with a sliding sleeve which vertically slides outside the shell on the same side; each sliding sleeve is internally provided with a spring E for resetting the corresponding sliding block B; two sliding chutes B are symmetrically formed in two sides of each sliding block B, a limiting block horizontally slides in each sliding chute B, and a spring D for resetting the corresponding limiting block is arranged in each sliding chute B; the inclined plane B and the inclined plane C on the limiting block are matched with a clamping block arranged on the same side of the inner wall of the sliding sleeve; each sliding sleeve is hinged with a crank wheel B arranged on the outer side of the shell through a connecting rod to form a crank-slider mechanism; an electric drive module C arranged outside the shell drives the two crank wheels B to synchronously rotate;

the inner wall of the square frame A is provided with two annular sliding chutes A which are distributed up and down and are communicated with each other, a plurality of mutually parallel square rods are matched in each sliding chute A in a sliding manner, and the square rods horizontally move along the direction vertical to the square rods; two layers of square rods in the two sliding grooves A are perpendicular to each other and are in contact with each other; a transmission structure for promoting the two square rods to synchronously move towards or away from each other is arranged between the ends of the two square rods at the most lateral side in each layer of square rods; a synchronous structure is arranged between two ends of one lateral-most side rod in each layer; the ends of two adjacent square rods in each layer at the same side are connected through a spring B; the grid formed by the two layers of square rods is matched with a pressing block arranged below the sliding block A;

2. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the lower side of the funnel A is provided with a net structure, and the crushed bone powder from the bone crushing mechanism falls into a receiving container A arranged on a partition board between two supporting plates through the net structure on the funnel A; the inner wall of the thorn-removing rotary body is uniformly and densely distributed with bulges; the deburring rotary body is rotationally matched with the fixed sleeve arranged between the two supporting plates, and a circular ring arranged on the deburring rotary body rotates in a circular groove on the inner wall of the fixed sleeve; a gear A arranged on an output shaft of the electric drive module A is meshed with a gear B arranged on the thorn-removing rotary body; the lower side of the funnel B is provided with a reticular structure, the broken bone powder falling into the deburring broken bone of the funnel B from the deburring rotary body falls into a receiving container B placed on the base through the reticular structure on the funnel B, and the broken bone particles falling into the deburring broken bone of the funnel B from the deburring rotary body fall into a receiving container C placed on the base.

3. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the telescopic rod consists of an outer sleeve A and an inner rod sliding in the sliding sleeve A; the inner rod is symmetrically provided with two guide blocks A which slide in two guide grooves E on the inner wall of the outer sleeve A respectively; the spring A is positioned in the outer sleeve A; one end of the spring A is connected with the inner wall of the outer sleeve A, and the other end of the spring A is connected with the inner rod.

4. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the round rod is movably arranged in a movable groove A on the shell; a gear ring A is arranged on the rim of the crank wheel A, the gear ring A is meshed with a gear C arranged on the outer side of the shell, the gear C is meshed with a gear D arranged on the outer side of the shell, the gear D is meshed with a gear E arranged on the outer side of the shell, and the gear E is meshed with a gear F arranged on the shaft A; the shaft A is in rotating fit with two supports A arranged on the outer side of the shell; a gear H arranged on an output shaft of the electric drive module B is meshed with a gear G arranged on the shaft A; and each round rod is provided with a baffle A matched with the corresponding movable groove A.

5. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the connecting block is movably arranged in a movable groove B on the shell; two baffle plates B matched with the corresponding movable grooves B are symmetrically arranged at the upper end and the lower end of the sliding sleeve; a gear ring B is arranged on the rim of the crank wheel B, the gear ring B is meshed with a gear K arranged on the outer side of the shell, the gear K is meshed with a gear L arranged on the outer side of the shell, the gear L is meshed with a gear M arranged on the shell, the gear M is meshed with a gear N arranged on the shell, and the gear N is meshed with a gear O arranged on the shaft C; the shaft C is in rotating fit with two supports C arranged on the shell; a gear Q mounted on the output shaft of the electric drive module C meshes with a gear P mounted on the shaft C.

6. A spinal surgical assistance apparatus as claimed in claim 1, wherein: a frame B for supporting the frame A is arranged in the shell; two T-shaped blocks are symmetrically arranged at two ends of each square rod, and each T-shaped block slides in a T-shaped groove on the corresponding sliding chute A; racks A are arranged on the T-shaped blocks at the same side ends of the two square rods at the most lateral side in each layer of square rods, and the two racks A at the same side end move in the movable grooves C in the corresponding T-shaped grooves; two racks A at the same side end are simultaneously meshed with a gear I arranged in a corresponding movable groove C; two racks B are symmetrically arranged at two ends of one square rod at the most lateral side in each layer of square rods, the two racks B are respectively meshed with two gears J arranged on a shaft B, and the shaft B is in rotating fit with two supports B arranged in the sliding chute A; two ends of the spring B are respectively connected with the inner walls of the circular grooves on the two adjacent T-shaped blocks.

7. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the telescopic pin consists of an outer sleeve B and an inner pin sliding in the outer sleeve B, and the spring C is positioned in the outer sleeve B; one end of the spring B is connected with the inner wall of the outer sleeve B, and the other end of the spring B is connected with the inner pin; the telescopic pin is movably arranged in a movable groove D on the square frame A; the inner pin of the telescopic pin is matched with the corresponding guide groove; two guide blocks C are symmetrically arranged on the limiting block and respectively slide in two guide grooves F on the inner wall of the corresponding sliding groove B; the sliding block B is provided with a guide block B which slides in a guide groove G on the inner wall of the sliding sleeve; two trapezoidal guide bars are symmetrically arranged on each sliding sleeve, and the two trapezoidal guide bars respectively slide in two trapezoidal guide grooves on the outer side of the shell; the side wall of the shell is provided with a feed inlet, the feed inlet is provided with a socket, and the socket is matched with a plug board.

8. A spinal surgical assistance apparatus as claimed in claim 1, wherein: the guide groove consists of a guide groove A, a guide groove B, a guide groove C and a guide groove D, wherein the guide groove A and the guide groove B are as deep as each other, and the guide groove C and the guide groove D are as deep as each other; the guide groove A is deeper than the guide groove D; a transitional inclined surface A is arranged between the guide groove B and the guide groove C.