Automatic bone grinding machine for spinal surgery

Abstract

The present invention provides an automatic bone grinding machine for spinal surgery, which belongs to the technical field of spinal surgery. It includes a machine base; a bone grinding cylinder, which is fixedly installed on the top of the machine base; a feeding port, which is fixedly connected to the front of the top of the bone grinding cylinder; a bone grinding mechanism, which is arranged in the inner cavity of the bone grinding cylinder; a feeding port, which is fixedly connected to the bottom of the bone grinding cylinder and the front of the bone grinding mechanism; and a disassembly cover, which is threadedly sleeved on the front end of the bone grinding cylinder. The above technical scheme is provided with a circular ring block, a first pneumatic cylinder and a second pneumatic cylinder, and the gears are driven to rotate by rotating the rotating rod, so that the first gear plate and the second pneumatic rod can move forward and backward as a whole, so that the second pneumatic cylinder can guide or inhale the inner cavity of the first pneumatic cylinder through the vent plate and the connecting pipe. At this time, the first pneumatic rod can be driven to pull the circular ring block and the outer grinding disc to move forward and backward as a whole, and finally the size of the ground bone particles can be adjusted by the size change of the gap on one side of the misalignment between the inner grinding disc and the outer grinding disc.

Description

Technical Field

[0001] The present invention relates to the technical field of spinal surgery, and in particular to an automatic bone grinding machine for spinal surgery. Background Art

[0002] Spinal surgery is divided into spinal injury, spinal infection, spinal tumor, spinal degenerative disease and spinal deformity, among which spinal injury, spinal degenerative disease and spinal deformity are the hot spots;

[0003] The existing patent publication number is CN112274214A, a medical device, specifically a bone-binding forceps, including a fixed arm, a movable arm arranged parallel to the upper part of the fixed arm, and a movable handle, the rear end of the fixed arm is provided with a handle bent downward, the upper end of the movable handle penetrates the rear end of the fixed arm, and is rotatably connected to the rear ends of the fixed arm and the movable arm, respectively, and the movable arm has a continuous corrugated surface on the side facing the fixed arm. In this technical solution, the movable arm has a continuous corrugated surface structure on the side facing the fixed arm, forming a plurality of holes, which can effectively reduce the obstruction of foreign matter entering therein and causing obstacles to its movement; at the same time, the structure can also eliminate the hidden dead angle between the movable arm and the fixed arm, and the cleaning process after use is more thorough, and it does not need to be disassembled for cleaning, which is more convenient to operate.

[0004] The existing patent publication number is CN108523963A, which is a medical device, specifically a new type of bone rongeur, comprising: a handle, the handle comprises a fixed handle and a movable handle, the fixed handle and the clamp tube are an integrated structure, a first connecting wire is arranged in the clamp tube, and the movable handle is fixedly connected to one end of the first connecting wire; an adjusting tube, one end of which has a spiral adjusting hole, and the adjusting tube is plug-connected with the clamp tube; a clamp head, comprising a lower clamp head, an upper clamp head, a clamp body, a connecting frame, a second connecting wire, a first adjusting rod and a second adjusting rod, the upper clamp head is rotatably connected to the clamp body, the connecting frame is arranged in the clamp body, one end of which is rotatably connected to the upper clamp head, and the other end is connected to one end of the second connecting wire, the other end of the second connecting wire is connected to the first connecting wire, the first adjusting rod and the second adjusting rod are both hingedly connected to the clamp body, and two guide grooves are arranged at the end of the clamp tube, and the first adjusting rod and the second adjusting rod are plug-connected to the guide grooves respectively. The present invention has the function of multi-angle adjustment and a very wide working range.

[0005] However, spinal surgery bone grafting and fusion requires the complete removal of the diseased intervertebral disc and the implantation of bone particles in the intervertebral space. The implanted bone particles are required to be uniform and moderate in size and to be aseptic. Otherwise, the degree of intervertebral fusion will be seriously affected, resulting in failure of intervertebral fusion, causing serious pain to the patient. Currently, most physicians use bone rongeurs to trim autologous bone blocks into bone particles. Since autologous bone blocks are irregular and have sharp points, it is easy to scratch the physician's sterile gloves during the operation, resulting in contamination of the autologous bone particles. In addition, the uneven size of the bone particles bitten off manually will also affect the fusion effect. Therefore, the present application provides an automatic bone grinder for spinal surgery to meet the needs. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an automatic bone grinding machine for spinal surgery to solve the existing problem of difficulty in adjusting the size of bone particles.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An automatic bone grinding machine for spinal surgery comprises a machine base; a bone grinding cylinder, which is fixedly mounted on the top of the machine base; a feeding port, which is fixedly connected to the front of the top of the bone grinding cylinder; a bone grinding mechanism, which is arranged in the inner cavity of the bone grinding cylinder; a feeding port, which is fixedly connected to the bottom of the bone grinding cylinder and the front of the bone grinding mechanism; a disassembly cover, which is threadedly sleeved on the front end of the bone grinding cylinder; an adjustment component, which is arranged in the inner cavity of the bone grinding cylinder and the outer side of the front end of the bone grinding mechanism and comprises a circular ring block, which is movably mounted in the inner cavity of the bone grinding cylinder and the outer side of the front end of the bone grinding mechanism, a first pneumatic cylinder is fixedly mounted on the upper and lower sides of the back of the circular ring block, a first pneumatic rod is movably mounted in the inner cavity of the first pneumatic cylinder, the front end of the first pneumatic rod is fixedly connected to the rear end of the circular ring block, and the first pneumatic rod can drive the circular ring block and the outer grinding disc to move forward and backward as a whole through the change of air pressure in the first pneumatic cylinder.

[0009] Optionally, the bone grinding mechanism includes a driving motor, a spiral conveying shaft, an inner grinding disc and an outer grinding disc;

[0010] The driving motor is fixedly installed at the rear end of the bone grinding cylinder, the spiral conveying shaft is fixedly installed at the output end of the driving motor, the inner grinding disc is fixedly sleeved on the front end surface of the spiral conveying shaft, and the outer grinding disc is movably installed in the inner cavity of the bone grinding cylinder and the outer side of the inner grinding disc.

[0011] Optionally, the interior of the bone grinding cylinder is provided with a pneumatic assembly located on the back of the circular ring block, and the pneumatic assembly includes a second pneumatic cylinder, a ventilation plate, a connecting pipe and a second pneumatic rod; the second pneumatic cylinder is fixedly installed inside the bone grinding cylinder and on the left and right sides of the back of the circular ring block, the ventilation plate is movably sleeved on the front end of the inner cavity of the second pneumatic cylinder, the connecting pipe is fixedly connected between the top front end of the second pneumatic cylinder and the outer front end of the first pneumatic cylinder, and the second pneumatic rod is movably installed in the inner cavity of the second pneumatic cylinder.

[0012] Optionally, a driving assembly is provided inside the bone grinding cylinder and is located on the back of the pneumatic assembly, and the driving assembly includes a first tooth plate, a rotating rod and a gear; the first tooth plate is fixedly mounted on the rear end of the second pneumatic rod, the rotating rod is movably sleeved on the inner wall of the bone grinding cylinder and the outer side of the front end of the first tooth plate, and the gear is fixedly sleeved on the rear end of the rotating rod and its surface is meshed with the bottom of the first tooth plate.

[0013] Optionally, a switching assembly is provided at the front end of the second pneumatic cylinder, and the switching assembly includes a mounting shaft, a quarter-tooth gear, a second tooth plate, a threaded rod and a fixed shaft; the mounting shaft is fixedly mounted on the front end of the vent plate, the quarter-tooth gear is fixedly sleeved on the front end of the mounting shaft, the second tooth plate is movably sleeved on the front end of the second pneumatic cylinder and above the rear end of the quarter-tooth gear, the threaded rod is threadedly sleeved on the inner wall of the bone grinding cylinder and in front of the second tooth plate, and the fixed shaft is fixedly mounted on the rear end of the threaded rod and inside the second tooth plate.

[0014] Optionally, the top of the rear end of the quarter-tooth gear surface is meshed with the bottom surface of the second tooth plate.

[0015] Optionally, a disassembly and assembly component is provided at the inner outer end of the circular ring block, and the disassembly and assembly component includes a clamping block, a piston cylinder and a piston rod; the clamping block is movably installed on the inner side of the circular ring block, the piston cylinder is fixedly installed inside the circular ring block and on the outer side of the clamping block, and the piston rod is movably installed in the inner cavity of the piston cylinder and the inner end is fixedly connected to the clamping block.

[0016] Optionally, there are two clamping blocks, and the two clamping blocks have the same size.

[0017] Optionally, a power assembly is arranged between the annular block and the pneumatic assembly, and the power assembly includes a ventilation channel, a first mounting tube, a metal hose and a second mounting tube; the ventilation channel is fixedly mounted on one side of the inside of the ventilation disk, the first mounting tube is fixedly connected to the front end of the ventilation disk and the outside of the ventilation channel, the second mounting tube is fixedly connected to the outer end of the piston cylinder, and the metal hose is fixedly connected between the bottom ends of the first mounting tube and the second mounting tube.

[0018] Optionally, the number of the second mounting tubes is two, and the two second mounting tubes have the same size and are symmetrical about the center of the metal hose.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In the above scheme, by setting up an annular block, a first pneumatic cylinder and a second pneumatic cylinder, the gear is driven to rotate by a rotating rod, so that the first tooth plate and the second pneumatic rod can move forward and backward as a whole, so that the second pneumatic cylinder can guide or inhale air to the inner cavity of the first pneumatic cylinder through the vent plate and the connecting pipe. At this time, the first pneumatic rod can be driven to pull the annular block and the outer grinding disc to move forward and backward as a whole, and finally the size of the ground bone particles can be adjusted by the change in the size of the gap on one side of the misalignment between the inner grinding disc and the outer grinding disc.

[0021] The present invention arranges a quarter-tooth gear, a second tooth plate and a threaded rod. When the threaded rod is rotated, the fixed shaft can rotate on the inner wall of the second tooth plate, thereby pulling the second tooth plate to move as a whole, so as to drive the quarter-tooth gear, the mounting shaft and the vent plate to rotate as a whole. At this time, the channel in the vent plate and the two connecting pipes can be misaligned, so that the second pneumatic cylinder can stop conveying and extracting the gas in the first pneumatic cylinder, and finally the movement of the annular block and the outer grinding disc as a whole is fixed.

[0022] The present invention provides a clamping block, a piston cylinder and a ventilation channel. When the ventilation disc is rotated ninety degrees as a whole, the ventilation channel will be connected to the first mounting tube. At this time, the gear can be driven to rotate by rotating the rotating rod, so that the first tooth plate and the second pneumatic rod can move back and forth as a whole, so that the second pneumatic cylinder can supply and inhale air to the inner cavity of the piston cylinder through the ventilation channel, the first mounting tube, the metal hose and the second mounting tube, and the change in air pressure is used to drive the piston rod and the clamping block to move toward or away from each other, thereby realizing the clamping and fixation of the outer grinding disc as a whole as well as the release and disassembly operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a cutaway three-dimensional structure of the present invention;

[0026] Figure 3 for Figure 2 A schematic diagram of the local enlarged structure at point A in the middle;

[0027] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the outer grinding disc of the present invention;

[0028] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0029] Figure 6 Schematic diagram of the cross-sectional three-dimensional structure of the second pneumatic rod of the present invention

[0030] Figure 7 for Figure 6 A schematic diagram of the local enlarged structure at C in the middle;

[0031] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the connecting pipe of the present invention;

[0032] Fig. 9 is a partial three-dimensional structural schematic diagram of the second pneumatic rod of the present invention;

[0033] Fig.10 for Fig. 9 Schematic diagram of the local enlarged structure at point D in the middle.

[0034] [Reference Signs]

[0035] 1. Machine base; 2. Bone grinding cylinder; 3. Feeding port; 5. Bone grinding mechanism; 501. Driving motor; 502. Screw conveying shaft; 503. Inner grinding disc; 504. Outer grinding disc; 6. Feeding port; 7. Disassembly cover; 8. Adjustment assembly; 801. Ring block; 802. First pneumatic cylinder; 803. First pneumatic rod; 9. Pneumatic assembly; 901. Second pneumatic cylinder; 902. Ventilation disc; 903. Connecting pipe; 904. Second pneumatic rod; 10. Driving assembly; 101. First A toothed plate; 102, a rotating rod; 103, a gear; 11, a switching assembly; 1101, a mounting shaft; 1102, a quarter-tooth gear; 1103, a second toothed plate; 1104, a threaded rod; 1105, a fixed shaft; 12, a disassembly assembly; 1201, a clamping block; 1202, a piston cylinder; 1203, a piston rod; 13, a power assembly; 1301, a ventilation channel; 1302, a first mounting tube; 1303, a metal hose; 1304, a second mounting tube.

[0036] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0037] The following is a detailed description of an automatic bone grinder for spinal surgery provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0038] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0039] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0040] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0041] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0042] like Figures 1 to 10As shown, the present invention provides an automatic bone grinding machine for spinal surgery, comprising a machine base 1; a bone grinding cylinder 2, which is fixedly installed on the top of the machine base 1; a feeding port 3, which is fixedly connected to the front of the top of the bone grinding cylinder 2; a bone grinding mechanism 5, which is arranged in the inner cavity of the bone grinding cylinder 2; a feeding port 6, which is fixedly connected to the bottom of the bone grinding cylinder 2 and the front of the bone grinding mechanism 5; a disassembly cover 7, which is threadedly sleeved on the front end of the bone grinding cylinder 2; an adjustment component 8, which is arranged in the inner cavity of the bone grinding cylinder 2 and the outer side of the front end of the bone grinding mechanism 5 and includes a ring Block 801, the circular block 801 is movably installed in the inner cavity of the bone grinding cylinder 2 and the outer side of the front end of the bone grinding mechanism 5, the first pneumatic cylinder 802 is fixedly installed on the upper and lower sides of the back side of the circular block 801, the inner cavity of the first pneumatic cylinder 802 is movably installed with a first pneumatic rod 803, the front end of the first pneumatic rod 803 is fixedly connected to the rear end of the circular block 801, and the air pressure change in the first pneumatic cylinder 802 can make the first pneumatic rod 803 drive the circular block 801 and the outer grinding disc 504 to move forward and backward as a whole.

[0043] Through the meshing relationship between the surface of the gear 103 and the bottom of the first tooth plate 101, when the operator rotates the rotating rod 102 to make the gear 103 rotate, the first tooth plate 101 will be driven to move forward and backward as a whole, so as to synchronously drive the second pneumatic rod 904 to move forward and backward, and then the gas in the inner cavity of the second pneumatic cylinder 901 is introduced into the first pneumatic cylinder 802 through the vent plate 902 and the connecting pipe 903, or the gas in the first pneumatic cylinder 802 is sucked away through the vent plate 902 and the connecting pipe 903, and the air pressure is used to drive the first pneumatic rod 803, the annular block 801 and the outer grinding disc 504 to move as a whole.

[0044] like Figure 2 As shown, the bone grinding mechanism 5 includes a driving motor 501, a spiral conveying shaft 502, an inner grinding disc 503 and an outer grinding disc 504; the driving motor 501 is fixedly installed at the rear end of the bone grinding cylinder 2, the spiral conveying shaft 502 is fixedly installed at the output end of the driving motor 501, the inner grinding disc 503 is fixedly sleeved on the front end surface of the spiral conveying shaft 502, and the outer grinding disc 504 is movably installed in the inner cavity of the bone grinding cylinder 2 and the outer side of the inner grinding disc 503.

[0045] By providing a driving motor 501 , the operation of the driving motor 501 will cause the spiral conveying shaft 502 to rotate and drive the inner grinding disc 503 to rotate, so as to grind the bone block between the inner grinding disc 503 and the outer grinding disc 504 .

[0046] like Figure 7 and Fig. 9As shown, the interior of the bone grinding cylinder 2 is provided with a pneumatic assembly 9 located on the back of the circular block 801, and the pneumatic assembly 9 includes a second pneumatic cylinder 901, a ventilation plate 902, a connecting pipe 903 and a second pneumatic rod 904; the second pneumatic cylinder 901 is fixedly installed inside the bone grinding cylinder 2 and on the left and right sides of the back of the circular block 801, the ventilation plate 902 is movably sleeved on the front end of the inner cavity of the second pneumatic cylinder 901, the connecting pipe 903 is fixedly connected between the top front end of the second pneumatic cylinder 901 and the outer front end of the first pneumatic cylinder 802, and the second pneumatic rod 904 is movably installed in the inner cavity of the second pneumatic cylinder 901.

[0047] By providing the connecting tube 903 , when the second pneumatic rod 904 moves forward and backward as a whole, the second pneumatic cylinder 901 can guide and inhale air into the first pneumatic cylinder 802 through the vent plate 902 and the connecting tube 903 .

[0048] like Fig. 9 As shown, the interior of the bone grinding cylinder 2 is provided with a driving assembly 10 located on the back of the pneumatic assembly 9, and the driving assembly 10 includes a first tooth plate 101, a rotating rod 102 and a gear 103; the first tooth plate 101 is fixedly installed on the rear end of the second pneumatic rod 904, the rotating rod 102 is movably connected to the inner wall of the bone grinding cylinder 2 and the outer side of the front end of the first tooth plate 101, and the gear 103 is fixedly connected to the rear end of the rotating rod 102 and the surface is meshed with the bottom of the first tooth plate 101.

[0049] By providing the gear 103 and rotating the rod 102 , the gear 103 can be rotated synchronously, so as to drive the first toothed plate 101 to link the second pneumatic rod 904 to move forward and backward as a whole.

[0050] like Figure 7 and Fig.10 As shown, a switching assembly 11 is provided at the front end of the second pneumatic cylinder 901, and the switching assembly 11 includes a mounting shaft 1101, a quarter-tooth gear 1102, a second tooth plate 1103, a threaded rod 1104 and a fixed shaft 1105; the mounting shaft 1101 is fixedly mounted on the front end of the ventilation disk 902, the quarter-tooth gear 1102 is fixedly sleeved on the front end of the mounting shaft 1101, the second tooth plate 1103 is movably sleeved on the front end of the second pneumatic cylinder 901 and above the rear end of the quarter-tooth gear 1102, the threaded rod 1104 is threadedly sleeved on the inner wall of the bone grinding cylinder 2 and in front of the second tooth plate 1103, and the fixed shaft 1105 is fixedly mounted on the rear end of the threaded rod 1104 and inside the second tooth plate 1103.

[0051] By providing a fixed shaft 1105 , the fixed shaft 1105 can be rotated by rotating the threaded rod 1104 to drive the second tooth plate 1103 to move forward and backward.

[0052] like Fig.10As shown, the top of the rear end of the surface of the quarter-tooth gear 1102 is meshed with the bottom surface of the second tooth plate 1103.

[0053] By providing the second tooth plate 1103, when the second tooth plate 1103 as a whole moves forward and backward, it can drive the quarter-tooth gear 1102, the mounting shaft 1101 and the ventilation plate 902 to rotate, and the maximum rotation is ninety degrees.

[0054] like Figure 5 As shown, the inner outer end of the circular ring block 801 is provided with a disassembly assembly 12, and the disassembly assembly 12 includes a clamping block 1201, a piston cylinder 1202 and a piston rod 1203; the clamping block 1201 is movably installed on the inner side of the circular ring block 801, the piston cylinder 1202 is fixedly installed inside the circular ring block 801 and outside the clamping block 1201, and the piston rod 1203 is movably installed in the inner cavity of the piston cylinder 1202 and the inner end is fixedly connected to the clamping block 1201.

[0055] By providing the piston cylinder 1202 , when the air pressure in the piston cylinder 1202 changes, the piston rod 1203 and the clamping block 1201 can be driven to move toward or away from each other.

[0056] like Figure 5 As shown, there are two clamping blocks 1201 , and the two clamping blocks 1201 have the same size.

[0057] By providing the clamping blocks 1201, when the two clamping blocks 1201 are pushed toward each other as a whole by the piston rod 1203, the inner ends can be clamped in the inner cavity of the outer grinding disc 504 to clamp and fix the outer grinding disc 504 as a whole.

[0058] like Figure 3 , Figure 5 and Figure 8 As shown, a power assembly 13 is arranged between the circular block 801 and the pneumatic assembly 9, and the power assembly 13 includes a ventilation channel 1301, a first mounting tube 1302, a metal hose 1303 and a second mounting tube 1304; the ventilation channel 1301 is fixedly installed on one side of the inside of the ventilation disk 902, the first mounting tube 1302 is fixedly connected to the front end of the ventilation disk 902 and the outside of the ventilation channel 1301, the second mounting tube 1304 is fixedly connected to the outer end of the piston cylinder 1202, and the metal hose 1303 is fixedly connected between the bottom ends of the first mounting tube 1302 and the second mounting tube 1304.

[0059] By providing the ventilation channel 1301 , when the ventilation disk 902 rotates ninety degrees as a whole, the ventilation channel 1301 can be aligned with the first mounting tube 1302 as a whole, so that the second pneumatic cylinder 901 can transport and absorb gas to the inner cavity of the piston cylinder 1202 through the power assembly 13 .

[0060] like Figure 3 As shown, the number of the second mounting tubes 1304 is two, and the two second mounting tubes 1304 have the same size and are symmetrical about the center of the metal hose 1303 .

[0061] By providing the second mounting tube 1304 , when the gas in the inner cavity of the second pneumatic cylinder 901 enters into the first mounting tube 1302 and the metal hose 1303 through the ventilation channel 1301 , it will then be introduced into the inner cavities of the two piston cylinders 1202 respectively through the second mounting tube 1304 .

[0062] The working process of the technical solution of the present invention is as follows:

[0063] First, when the size of the ground bone particles needs to be adjusted, the operator rotates the rotating rod 102 to drive the gear 103 to rotate, so that the first tooth plate 101 and the second pneumatic rod 904 move forward and backward as a whole. At this time, the second pneumatic cylinder 901 will guide and inhale air to the inner cavity of the first pneumatic cylinder 802 through the vent plate 902 and the connecting pipe 903. Through the change of air pressure, the first pneumatic rod 803 pulls the annular block 801 and the outer grinding disk 504 to move forward and backward to the appropriate position, and then rotates the threaded rod 1104 to rotate the fixed shaft 1105 to drive the second tooth plate 1103 to move, and then the quarter-tooth gear 1102 rotates to drive the installation shaft 1101 and the vent plate 902 to rotate, so that the vent plate 902 and the connecting pipe 903 are misaligned, and the gas delivery and absorption to the inner cavity of the first pneumatic rod 803 can be stopped, and the annular block 801 and the outer grinding disk 504 are fixed as a whole.

[0064] Then, the operator adds the bone block into the inner cavity of the bone grinding cylinder 2 through the feeding port 3, and then starts the driving motor 501, so that the spiral conveying shaft 502 rotates to convey the bone block to between the inner grinding disc 503 and the outer grinding disc 504. At this time, the inner grinding disc 503 rotates to evenly grind the bone block into bone particles of corresponding sizes on the inner grinding disc 503 and the outer grinding disc 504, and finally discharged and collected through the discharge port 6.

[0065] When the operator needs to remove the outer grinding disc 504 for replacement or cleaning, the threaded rod 1104 is rotated to drive the fixed shaft 1105 to pull the second tooth plate 1103 to move, so that the quarter-tooth gear 1102, the mounting shaft 1101 and the ventilation disc 902 are deflected ninety degrees as a whole, thereby connecting the ventilation channel 1301 and the first mounting tube 1302. Then the operator can rotate the rotating rod 102 to make the gear 103 rotate to drive the first tooth plate 101 and the second pneumatic rod 904 to move backward as a whole, so that the second pneumatic cylinder 901 draws out the gas in the inner cavity of the piston cylinder 1202 through the power assembly 13, and finally makes the two piston rods 1203 and the clamping block 1201 face each other, releasing the clamping fixation of the outer grinding disc 504, and then the disassembly cover 7 is rotated to remove it, so as to take out the outer grinding disc 504 in the inner cavity of the machine base 1 for replacement or cleaning.

[0066] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic bone grinding machine for spinal surgery, characterized in that: Including the base; A bone grinding cylinder, which is fixedly mounted on the top of the machine base; A feeding port, which is fixedly connected to the front of the top of the bone grinding cylinder; A bone grinding mechanism, which is arranged in the inner cavity of the bone grinding cylinder; A feeding port, which is fixedly connected to the bottom of the bone grinding cylinder and the front of the bone grinding mechanism; A disassembly cover, the thread of which is sleeved on the front end of the bone grinding cylinder; An adjusting component is arranged in the inner cavity of the bone grinding cylinder and the outer side of the front end of the bone grinding mechanism and includes a circular ring block, which is movably installed in the inner cavity of the bone grinding cylinder and the outer side of the front end of the bone grinding mechanism, and a first pneumatic cylinder is fixedly installed on the upper and lower sides of the back of the circular ring block, and a first pneumatic rod is movably installed in the inner cavity of the first pneumatic cylinder, and the front end of the first pneumatic rod is fixedly connected to the rear end of the circular ring block, and the first pneumatic rod can drive the circular ring block and the outer grinding disc to move forward and backward as a whole through the change of air pressure in the first pneumatic cylinder; The bone grinding mechanism includes a driving motor, a spiral conveying shaft, an inner grinding disc and an outer grinding disc; The drive motor is fixedly installed at the rear end of the bone grinding cylinder, the spiral conveying shaft is fixedly installed at the output end of the drive motor, the inner grinding disc is fixedly sleeved on the front end surface of the spiral conveying shaft, and the outer grinding disc is movably installed in the inner cavity of the bone grinding cylinder and the outer side of the inner grinding disc; The bone grinding cylinder is provided with a pneumatic assembly located on the back of the circular ring block, and the pneumatic assembly includes a second pneumatic cylinder, a vent plate, a connecting pipe and a second pneumatic rod; The second pneumatic cylinder is fixedly installed inside the bone grinding cylinder and on the left and right sides of the back of the circular ring block, the vent plate is movably sleeved on the front end of the inner cavity of the second pneumatic cylinder, the connecting pipe is fixedly connected between the top front end of the second pneumatic cylinder and the outer front end of the first pneumatic cylinder, and the second pneumatic rod is movably installed in the inner cavity of the second pneumatic cylinder; The bone grinding cylinder is provided with a driving assembly located at the back of the pneumatic assembly, and the driving assembly includes a first tooth plate, a rotating rod and a gear; The first tooth plate is fixedly mounted on the rear end of the second pneumatic rod, the rotating rod is movably sleeved on the inner wall of the bone grinding cylinder and the outer side of the front end of the first tooth plate, and the gear is fixedly sleeved on the rear end of the rotating rod and the surface is meshed with the bottom of the first tooth plate; A switching assembly is disposed at the front end of the second pneumatic cylinder, and the switching assembly includes a mounting shaft, a quarter-tooth gear, a second tooth plate, a threaded rod and a fixed shaft; The mounting shaft is fixedly mounted on the front end of the ventilating plate, the quarter-tooth gear is fixedly sleeved on the front end of the mounting shaft, the second tooth plate is movably sleeved on the front end of the second pneumatic cylinder and above the rear end of the quarter-tooth gear, the threaded rod is threadedly sleeved on the inner wall of the bone grinding cylinder and the front of the second tooth plate, and the fixed shaft is fixedly mounted on the rear end of the threaded rod and inside the second tooth plate; The top of the rear end of the surface of the quarter-tooth gear is meshed with the bottom surface of the second tooth plate.

2. The automatic bone grinding machine for spinal surgery according to claim 1, characterized in that: The inner outer end of the annular block is provided with a disassembly assembly, which includes a clamping block, a piston cylinder and a piston rod; The clamping block is movably mounted on the inner side of the annular block, the piston cylinder is fixedly mounted inside the annular block and outside the clamping block, and the piston rod is movably mounted in the inner cavity of the piston cylinder and the inner end is fixedly connected to the clamping block.

3. The automatic bone grinding machine for spinal surgery according to claim 2, characterized in that: The number of the clamping blocks is two, and the two clamping blocks have the same size.

4. The automatic bone grinding machine for spinal surgery according to claim 1, characterized in that: A power assembly is arranged between the annular block and the pneumatic assembly, and the power assembly includes a ventilation channel, a first mounting pipe, a metal hose, and a second mounting pipe; The ventilation channel is fixedly installed on one side of the ventilation plate, the first mounting tube is fixedly connected to the front end of the ventilation plate and the outside of the ventilation channel, the second mounting tube is fixedly connected to the outer end of the piston cylinder, and the metal hose is fixedly connected between the bottom ends of the first mounting tube and the second mounting tube.

5. The automatic bone grinding machine for spinal surgery according to claim 4, characterized in that: The number of the second installation tubes is two, and the two second installation tubes have the same size and are symmetrical about the center of the metal hose.

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