CN212466195U - Bone picking and breaking device for spinal surgery - Google Patents

Abstract

The utility model discloses a bone removing and breaking device for spinal surgery, which comprises a bone breaking shell, a reticular bone removing cylinder, staggered knife teeth, a three-dimensional knife edge, a shell cover and a rotating handle; a broken bone shell rotating shaft is arranged at the center of the bottom of the broken bone shell; the wall surface of the mesh bone-picking cylinder is provided with a plurality of meshes, and the bottom of the mesh bone-picking cylinder is provided with a hole matched with the rotating shaft of the broken bone shell; the staggered cutter teeth comprise cutter tooth seats and cutter tooth rotating shafts arranged at the tops of the cutter tooth seats, a plurality of symmetrical cutter teeth are arranged on the peripheries of the cutter tooth seats, and holes matched with the broken bone shell rotating shafts are formed in the centers of the bottoms of the cutter tooth seats; the three-dimensional cutting edge comprises a cutting edge rotating shaft and a plurality of blades arranged on the cutting edge rotating shaft, and a hole matched with the broken bone shell rotating shaft is formed in the center of the bottom of the cutting edge rotating shaft; the shell cover is used for covering the broken bone shell, and the middle part of the shell cover is provided with a hole for the knife tooth rotating shaft and the knife edge rotating shaft to pass through; the top of the knife tooth rotating shaft and the top of the knife edge rotating shaft are connected with a rotating handle. The device of the utility model can not only reject the soft tissue of the connecting bone but also crush the bone.

Description

Bone picking and breaking device for spinal surgery

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a bone picking and breaking device for spinal surgery.

Background

The common diseases and frequently encountered diseases are protrusion of cervical and lumbar intervertebral discs, spinal stenosis, unstable spine, slippage and the like, and when the vertebral canal is decompressed in surgical treatment, bone grafting fusion and internal fixation are often needed. Autologous bone taken down under reduced pressure during surgery is the preferred material for fusion bone grafting. However, when the pressure is reduced, the vertebral plate, spinous process and the like which are bitten down one by using the rongeur are bitten down together with soft tissues (ligaments, joint capsules, muscles, connective tissues and the like) to cause the soft tissues to be more tightly embedded with bones, when the bones are selected for bone grafting, the soft tissues must be removed, otherwise, the fusion of the bones is influenced, and the final failure of the operation is caused. The task of removing soft tissue and crushing bone is difficult! Not only wastes time and labor, but also has unsatisfactory effect of removing soft tissues and results of crushing bone blocks.

In the prior art, only a device for pulverizing bone cannot remove soft tissue attached to bone. Therefore, the clinical practical needs are not fundamentally solved, and the clinical popularization and use are not achieved. In addition, the device is complex, and is not easy to operate, move and sterilize. Therefore, in the spinal surgery, the utility model discloses a can reject the soft tissue, can smash the equipment of bone again very necessary.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect and not enough, provide a bone picking garrulous bone device for spinal surgery, can reject the soft tissue of connecting the bone and can garrulous bone again.

The purpose of the utility model can be realized by the following technical scheme: the bone-picking and bone-breaking device for the spine surgery comprises a bone-breaking shell, a reticular bone-picking cylinder, staggered knife teeth, a three-dimensional knife edge, a shell cover and a rotating handle; a broken bone shell rotating shaft is arranged at the center of the bottom of the broken bone shell; the wall surface of the mesh bone picking cylinder is provided with a plurality of meshes, and the bottom of the mesh bone picking cylinder is provided with a hole matched with the rotating shaft of the bone crushing shell; the staggered cutter teeth comprise cutter tooth seats and cutter tooth rotating shafts arranged at the tops of the cutter tooth seats, a plurality of symmetrical cutter teeth are arranged on the periphery of each cutter tooth seat, and holes matched with the broken bone shell rotating shafts are formed in the centers of the bottoms of the cutter tooth seats; the three-dimensional cutting edge comprises a cutting edge rotating shaft and a plurality of blades arranged on the cutting edge rotating shaft, and a hole matched with the broken bone shell rotating shaft is formed in the center of the bottom of the cutting edge rotating shaft; the shell cover is used for covering the broken bone shell, and the middle part of the shell cover is provided with a hole for the knife tooth rotating shaft and the knife edge rotating shaft to pass through; the top parts of the cutter tooth rotating shaft and the cutter edge rotating shaft are connected with a rotating handle; when the broken bone shell, the mesh bone picking barrel, the staggered cutter teeth, the shell cover and the rotary handle are used in a matching way, the soft tissue is picked; when the broken bone shell, the three-dimensional blade, the shell cover and the rotating handle are used in a matching way, the broken bone shell is used for crushing bone blocks.

Further, the meshes are arranged in a spiral oblique line on the wall surface. The spiral meshes arranged in an inclined way are beneficial to stirring the bone blocks in the mesh bone picking cylinder.

Furthermore, the meshes protrude from the wall surface, the meshes form an angle of 10 to 30 degrees with the tangent line of the wall surface, and the diameter of the meshes is between 1 and 3 mm.

Furthermore, the mesh boning cylinder is of a conical columnar structure with a wide upper part and a narrow lower part. The conical columnar structure with wide upper part and narrow lower part can give certain upward force to the bone block rotating in the bone-picking cylinder, so that the bone block can be fully scraped between the reticular bone-picking cylinder and the rotating staggered cutter teeth.

Furthermore, the cross section of the cutter tooth seat of the staggered cutter teeth is in a hexagonal star shape, and cutter teeth are arranged on the side corresponding to each corner.

Further, the tooth tips of the cutter teeth are not on the same horizontal plane, the tooth tips are arranged at intervals, the tooth height is between 5mm and 10mm, and the tooth crest angle is between 30 and 60 degrees. When the staggered cutter teeth rotate, the bone blocks can swing up and down in the mesh boning cylinder due to the difference of the height of the cutter teeth, so that the scraping and cutting of the bone blocks between the cutter teeth and mesh holes are increased, and the soft tissue can be removed.

Furthermore, three groups of blades are arranged on the three-dimensional blade edge, one group of blades arranged at the bottom is in a horizontal S shape, and two groups of blades arranged on the upper surface are in an oblique S shape. Three sets of blades are the three-dimensional space combination, and when the three-dimensional cutting edge rotated in bone crushing shell, the bone crushing efficiency was higher.

Furthermore, the broken bone shell is a conical columnar structure with a wide upper part and a narrow lower part, a plurality of turbulence columns are arranged on the inner side wall of the broken bone shell, and the turbulence columns are 2mm to 4mm higher than the inner wall surface of the broken bone shell. The flow disturbing column can block the rotating bone block in the broken bone shell, which is equivalent to giving reverse acting force, thereby being convenient for cutting the solid cutting edge.

Furthermore, a hexagonal structure is arranged at the bottom of the rotating shaft of the bone crushing shell, and hexagonal holes matched with the hexagonal structure are formed in the bottom of the mesh bone picking cylinder. After the mesh bone picking cylinder is inserted into the broken bone shell rotating shaft, the mesh bone picking cylinder can be fixed by the hexagonal prism structure to prevent the mesh bone picking cylinder from rotating.

Further, the rotating handle is a manual handle, an electric handle or a general electric drill in an operating room. The electric drill is one of the spare tools in an operating room, can be used as a rotary handle, and avoids increasing the cost of products.

The working principle of the utility model is as follows: the mesh bone picking cylinder is arranged in the bone crushing shell, the staggered cutter teeth are arranged on a rotating shaft of the bone crushing shell, the bone with soft tissue is placed between the mesh bone picking cylinder and the staggered cutter teeth, the shell cover is covered, the rotating handle is connected, and the rotating handle is started to pick the soft tissue on the bone. Taking out the staggered cutter teeth and the mesh bone picking barrel, removing soft tissues in the broken bone shell, installing the three-dimensional cutter edge on a rotating shaft of the broken bone shell, putting the bone blocks with the soft tissues removed into the broken bone shell, and breaking the bone tissues.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses a bone picking and breaking device is provided with a netted bone picking section of thick bamboo, alternating expression sword tooth, three-dimensional cutting edge, can not only reject and connect in the soft tissue of bone, can also smash the bone piece. Is suitable for any bone grafting operation in orthopaedics, and is more suitable for bone removing and bone crushing operation in spinal surgery.

2. The utility model discloses an equipment convenient and fast between each part of bone picking garrulous bone device can be suitable for manual formula twist grip or electrodynamic type twist grip, can be according to the size control time of polishing and the speed of smashing the bone grain.

3. The bone picking and breaking device of the utility model has simple structure, can be disassembled from each part, and is convenient for disinfection and transportation in the operation.

Drawings

FIG. 1 is a schematic structural diagram of a bone-picking and-breaking device for spinal surgery according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the embodiment of the present invention in which the bone-breaking shell is engaged with the mesh bone-picking cylinder;

FIG. 3 is a schematic view of the mesh deboning tube according to an embodiment of the present invention;

FIG. 4 is a schematic view of the angle between the mesh and the wall in the embodiment of the present invention;

FIG. 5 is a schematic view of an embodiment of the present invention illustrating a staggered cutter tooth structure;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a bottom view of FIG. 5;

FIG. 8 is a schematic structural view of the embodiment of the present invention showing the engagement between the three-dimensional blade and the broken bone shell;

fig. 9 is a schematic view of the cooperation between the three-dimensional blade and the manual rotating handle in the embodiment of the present invention;

fig. 10 is a schematic view of the three-dimensional blade and the electric rotating handle according to the embodiment of the present invention;

FIG. 11 is a top view of a fractured bone shell according to an embodiment of the present invention;

FIG. 12 is a schematic view of a housing cover according to an embodiment of the present invention;

fig. 13 is a schematic structural view of an electric rotating handle according to an embodiment of the present invention;

FIG. 14 is a bottom view of FIG. 13;

fig. 15 is a perspective view of the rotating handle in the embodiment of the present invention.

Wherein: 1: broken bone shell, 11: broken bone shell rotating shaft, 111: hexagonal structure, 12: turbulent flow column, 2: a mesh boning cylinder, 21: mesh, 22: hexagonal holes, 23: wall surface tangent line, 3: staggered cutter teeth, 31: cutter head, 311: cutter teeth, 32: tooth rotating shaft, 33: rotation hole, 4: three-dimensional blade, 41: blade rotation axis, 42: blade, 5: case cover, 51: circular hole, 52: handle, 61: manual rotating handle, 62: electric rotating handle, 621: power interface, 622: and an inner hexagonal interface.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in figure 1, the bone-picking and bone-breaking device for spinal surgery comprises a bone-breaking shell, a mesh bone-picking cylinder, staggered cutter teeth, a three-dimensional cutter edge, a shell cover and a rotary handle. When the broken bone shell, the mesh bone picking barrel, the staggered cutter teeth, the shell cover and the rotating handle are matched for use, the soft tissue connected with the bone is picked out. When the broken bone shell, the three-dimensional blade, the shell cover and the rotating handle are used in a matching way, the broken bone shell is used for crushing bones. The rotating handle can be a manual rotating handle, an electric rotating handle or a general electric drill in an operating room.

As shown in fig. 2, the bone crushing shell is a conical columnar structure with a wide upper part and a narrow lower part, and a bone crushing shell rotating shaft is arranged at the center of the bottom in the shell. The bottom of the broken bone shell rotating shaft is provided with a hexagonal structure with the height of 1 mm. As shown in fig. 11, 3 turbulence columns are arranged on the inner side wall of the bone crushing shell, and the height of the turbulence columns is 2mm to 4mm higher than the inner wall surface of the bone crushing shell. The flow disturbing column can block the bone block rotating in the broken bone shell, which is equivalent to giving reverse acting force to the bone block, thereby facilitating the cutting of the follow-up solid cutting edge.

As shown in figures 2 and 3, the mesh boning cylinder is a conical columnar structure with a wide upper part and a narrow lower part and can be sleeved in a bone crushing shell with a similar shape. The conical columnar structure is used for providing certain upward force for the bone blocks outwards under the action of rotating centrifugal force when the bone blocks are downward under the action of gravity, and the shape of the mesh bone picking cylinder is wide at the upper part and narrow at the lower part, so that the bone blocks can be sufficiently scraped between the mesh bone picking cylinder and the rotating staggered cutter teeth. The wall surface of the mesh boning cylinder is provided with a plurality of meshes which are spirally and obliquely arranged on the wall surface, thereby being beneficial to stirring bone blocks in the boning cylinder. As shown in FIG. 4, the mesh protrudes from the wall surface, the mesh forms an angle of 10 to 30 degrees with the tangent of the wall surface, and the mesh diameter is 1 to 3 mm. The bottom of the reticular bone-picking cylinder is provided with hexagonal holes matched with the hexagonal structure at the bottom of the rotating shaft of the bone-breaking shell. When the mesh bone-picking cylinder is sleeved in the broken bone shell, the hexagonal holes are matched with the hexagonal structure, so that the mesh bone-picking cylinder can be fixed and prevented from rotating.

As shown in fig. 5, the staggered cutter teeth comprise cutter teeth seats and cutter teeth rotating shafts arranged at the tops of the cutter teeth seats. As shown in fig. 7, a rotary hole is formed at the center of the bottom of the cutter tooth holder, and the rotary hole can be matched with the rotation shaft of the bone crushing shell, so that the staggered cutter teeth can be inserted into the rotation shaft of the bone crushing shell. As shown in fig. 6 and 7, the cross section of the cutter tooth seat of the staggered cutter tooth is in a hexagonal star shape, and cutter teeth are arranged on the side edge corresponding to each corner. The tooth tips of the cutter teeth are not on the same horizontal plane, the tooth tips are arranged at intervals, the tooth height is between 5mm and 10mm, and the tooth crest angle is between 30 degrees and 60 degrees. When the staggered cutter teeth rotate, the bone blocks can swing up and down in the mesh boning cylinder due to the difference of the height of the cutter teeth, so that the scraping and cutting of the bone blocks between the cutter teeth and mesh holes are increased, the soft tissue can be removed, and the removed soft tissue can be filtered into the broken bone shells from meshes.

When soft tissue connected to bone is required to be removed, the mesh bone-removing cylinder is arranged in the bone-breaking shell, the staggered cutter teeth are arranged on the rotating shaft of the bone-breaking shell, the bone with the soft tissue is placed between the mesh bone-removing cylinder and the staggered cutter teeth, the shell cover is covered, the rotating handle is connected, and the rotating handle is started to remove the soft tissue on the bone.

After soft tissues are removed, the rotary handle is detached, the shell cover is opened, the staggered cutter teeth and the reticular bone removing barrel are taken out, the soft tissues in the broken bone shell are removed, and the three-dimensional cutting edge is arranged on the rotating shaft of the broken bone shell. As shown in fig. 8, 9 and 10, the three-dimensional blade includes a blade rotating shaft and 3 sets of blades provided on the blade rotating shaft, and a hole engaged with the rotating shaft of the bone fragment housing is also provided at the center of the bottom of the blade rotating shaft so that the three-dimensional blade can be inserted into the rotating shaft of the bone fragment housing. Three groups of blades are arranged on the three-dimensional cutting edge, one group of blades arranged at the bottom is in a horizontal S shape, and two groups of blades arranged on the upper surface are in an oblique S shape. Three groups of cutting edges are combined in a three-dimensional space, and when the three-dimensional cutting edges rotate in the bone crushing shell, the bone crushing efficiency is higher.

As shown in fig. 12, the shell cover is used for covering the broken bone shell, and the center of the shell cover is provided with round holes for the knife tooth rotating shaft and the knife edge rotating shaft to pass through, and handles convenient to take are arranged on two sides of the shell cover. The blade tooth rotating shaft and the blade rotating shaft are hexagonal, and the interfaces of the manual rotating handle and the electric rotating handle are also hexagonal in order to be matched with the blade tooth rotating shaft and the blade rotating shaft. As shown in fig. 12 to 14, the top of the electric rotating handle is provided with a power interface, and the bottom is provided with an inner hexagonal interface matched with the knife tooth rotating shaft and the knife edge rotating shaft.

After the three-dimensional cutting edge is arranged on the broken bone shell rotating shaft, the bone with the soft tissue removed is placed into the broken bone shell, the shell cover is covered, and the rotating handle is arranged, so that the bone tissue can be broken.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The bone removing and breaking device for the spine surgery is characterized by comprising a bone breaking shell, a reticular bone removing barrel, staggered knife teeth, a three-dimensional knife edge, a shell cover and a rotating handle;

a broken bone shell rotating shaft is arranged at the center of the bottom of the broken bone shell; the wall surface of the mesh bone picking cylinder is provided with a plurality of meshes, and the bottom of the mesh bone picking cylinder is provided with a hole matched with the rotating shaft of the bone crushing shell;

the staggered cutter teeth comprise cutter tooth seats and cutter tooth rotating shafts arranged at the tops of the cutter tooth seats, a plurality of symmetrical cutter teeth are arranged on the periphery of each cutter tooth seat, and holes matched with the broken bone shell rotating shafts are formed in the centers of the bottoms of the cutter tooth seats;

the three-dimensional cutting edge comprises a cutting edge rotating shaft and a plurality of blades arranged on the cutting edge rotating shaft, and a hole matched with the broken bone shell rotating shaft is formed in the center of the bottom of the cutting edge rotating shaft;

the shell cover is used for covering the broken bone shell, and the middle part of the shell cover is provided with a hole for the knife tooth rotating shaft and the knife edge rotating shaft to pass through; the top parts of the cutter tooth rotating shaft and the cutter edge rotating shaft are connected with a rotating handle;

when the broken bone shell, the mesh bone picking barrel, the staggered cutter teeth, the shell cover and the rotary handle are used in a matching way, the soft tissue is picked; when the broken bone shell, the three-dimensional blade, the shell cover and the rotating handle are used in a matching way, the broken bone shell is used for crushing bone blocks.

2. The boning device for spinal surgery as recited in claim 1, wherein the mesh is arranged in a helical diagonal pattern on the wall surface.

3. The boning device for spinal surgery as recited in claim 1 or 2, wherein the mesh is protruded from the wall surface, the mesh forms an angle of 10 to 30 degrees with a tangent line of the wall surface, and the mesh has a diameter size of 1 to 3 mm.

4. The boning and bone-breaking device for spinal surgery as recited in claim 3, wherein the mesh boning cartridge is a conical cylindrical structure with a wide top and a narrow bottom.

5. The boning and bone-breaking device for spinal surgery as recited in claim 1, wherein the cross-section of the blade seat of the staggered blade teeth is a hexagonal star shape, and the blade teeth are provided at the corresponding side of each corner.

6. The bone-picking and-breaking device for spinal surgery as recited in claim 1 or 5, wherein the tips of the cutter teeth are not on a horizontal plane, the tips are spaced apart, the height of the teeth is between 5mm and 10mm, and the tip angle is between 30 and 60 degrees.

7. The deboning and bone-breaking device for spinal surgery as claimed in claim 1, wherein the three-dimensional blade edge is provided with three sets of blades, the bottom set of blades is horizontally S-shaped, and the upper set of blades is obliquely S-shaped.

8. The boning and bone-breaking device for spinal surgery as claimed in claim 1, wherein the bone-breaking shell is a conical column structure with a wide top and a narrow bottom, and a plurality of flow-disturbing columns are arranged on the inner side wall and are 2mm to 4mm higher than the inner wall surface of the bone-breaking shell.

9. The boning and bone-breaking device for spinal surgery as recited in claim 1, wherein the bottom of the rotating shaft of the bone-breaking shell is provided with a hexagonal structure, and the bottom of the mesh boning cylinder is provided with hexagonal holes matched with the hexagonal structure.

10. The boning and bone-breaking device for spinal surgery as recited in claim 1, wherein the rotary handle is a manual rotary handle, an electric rotary handle or a general electric drill in an operating room.

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