CN112294501B - Adjustable and assembled animal vertebral body fixing instrument - Google Patents
Adjustable and assembled animal vertebral body fixing instrument Download PDFInfo
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- CN112294501B CN112294501B CN202011192282.1A CN202011192282A CN112294501B CN 112294501 B CN112294501 B CN 112294501B CN 202011192282 A CN202011192282 A CN 202011192282A CN 112294501 B CN112294501 B CN 112294501B
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- 241001465754 Metazoa Species 0.000 title claims abstract description 35
- 210000000080 chela (arthropods) Anatomy 0.000 claims abstract description 32
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims description 49
- 230000037431 insertion Effects 0.000 claims description 49
- 230000004927 fusion Effects 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 13
- 238000004080 punching Methods 0.000 description 11
- 230000000149 penetrating effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010171 animal model Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61D—VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
- A61D1/00—Surgical instruments for veterinary use
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/307—Prostheses for animals
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Neurology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole for fixing the combined block to a screw on a vertebral body, and the clamping pliers reduce the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I and a combination block II; the outer edges of the first combination block and the second combination block are provided with planes, and the clamping pincers are arranged on clamping plates attached to the planes. When in use, the first combined block is arranged on one vertebral body, and the second combined block is arranged on the other vertebral body; the screw is arranged in the screw hole, the screw is screwed into a bone, the first combination block and the second combination block are fixed to vertebral bodies on two sides, then the first combination block and the second combination block are clamped tightly by the clamping pincers, the distance between the first combination block and the second combination block is reduced, when the proper distance is reached, the first combination block and the second combination block are locked by the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the function of the interbody fusion material is further promoted to play.
Description
Technical Field
The invention belongs to the technical field of instruments for animal experiments or operations, particularly relates to a fixing instrument for two fused vertebral bodies of an experimental animal, and particularly relates to an adjustable and assembled animal vertebral body fixing instrument.
Background
Many clinical procedures are currently performed prior to clinical performance using experimental simulations using a variety of spinal animals to understand the effectiveness of the surgical procedure or the effectiveness of the instruments or materials used in the procedure. Particularly, the operation of the vertebral body is difficult, the nerve of a patient can be damaged by carelessness, and the effectiveness of the method or the apparatus must be verified by animal experiments before the safety of some new operations and apparatuses can not be determined.
At present, after the operation of the intervertebral fusion instrument is verified on an animal body, after the fusion material between the vertebral bodies is placed, the fusion can be used for playing a role after two vertebral bodies which are adjacent to and fused into two sides are fixed by using a fixing instrument, but because the structures of the animal vertebral bodies and a human body are different, the effective and rapid fixation of the fusion material between the animal bodies after the fusion material is placed is a technical problem which needs to be solved urgently.
The invention provides an adjustable and assembled animal vertebral body fixing instrument aiming at the problem that the experimental animal fusion material is difficult to fix or the distance between adjacent vertebral bodies is not effectively and quickly fixed after being placed in the prior art.
Disclosure of Invention
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole for fixing the combined block to a screw on a vertebral body, and the clamping pliers reduce the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I and a combination block II; the outer edges of the first combination block and the second combination block are provided with planes, and the clamping pincers are arranged on clamping plates attached to the planes. When in use, the first combined block is arranged on one vertebral body, and the second combined block is arranged on the other vertebral body; the screw is arranged in the screw hole, the screw is screwed into a bone, the first combination block and the second combination block are fixed to vertebral bodies on two sides, then the first combination block and the second combination block are clamped tightly by the clamping pincers, the distance between the first combination block and the second combination block is reduced, when the proper distance is reached, the first combination block and the second combination block are locked by the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the function of the interbody fusion material is further promoted to play.
Further, screw holes are formed in the upper surfaces of the first combination block and the second combination block;
furthermore, the first combined block is a single block or formed by splicing 2-4 small blocks; the combined block II is also a single block or formed by splicing 2-4 small blocks; the number of the combined blocks I and the number of the combined blocks II are the same and the combined blocks I and II are correspondingly combined. When the animal is a small animal, a single combined block is arranged, and when the animal is a beating animal, 2-4 small blocks are arranged, so that the large vertebral bodies are effectively fixed.
Furthermore, the first combination block and the second combination block are respectively spliced by 2-4 small blocks, when the first combination block and the second combination block are respectively spliced by two small blocks; the first combination block and the second combination block comprise an insertion block and a bearing block, and the insertion block extends out of the insertion plate; the bearing block is provided with an insertion hole for inserting the insertion plate; when the first combination block and the second combination block are respectively spliced by 3-4 small blocks, the first combination block and the second combination block both comprise an inserting block and a bearing block at two sides and a middle 1-2 middle block; the insertion block extends out of the insertion plate; the bearing block is provided with an insertion hole for inserting the insertion plate; one side of the middle block is provided with an insertion plate, and the other side of the middle block is provided with an insertion hole; corresponding clamping structures are arranged in the insertion plate and the insertion hole.
Further, screens structure is including setting up the little recess in the insert hole, and stretch into the barb of little recess in, and the board stretches into in the setting of barb is guaranteed to insert, and barb card suddenly when removing little recess department locks the position in the recess, places to insert the board and withdraws from in the insert hole.
Furthermore, the first combination block and the second combination block have the same structure; the first combination block and the second combination block are formed by a single block, and two through holes are respectively formed in the outer sides of the rear side surfaces of the first combination block and the second combination block; the through hole does not pass through the threaded hole; a connecting rod passing through holes on the first combination block and the second combination block is arranged; the first end of the connecting rod is provided with an end cap with a size larger than that of the hole of the tube hole, and the second end of the connecting rod is provided with a distance locking structure for locking the distance between the first combination block and the second combination block.
Furthermore, the distance locking structure comprises a plurality of small holes I arranged on the connecting rod and a locking small rod which is arranged on the outer side of the combination block I or the combination block II and inserted into the small holes I.
Furthermore, the first small hole is a hole penetrating through the connecting rod, and the length of the locking small rod is greater than the maximum aperture of the through hole; and a locking cap is arranged on the locking small rod.
Furthermore, different clamping plates are arranged on two sides of the clamping pincers, the length of the clamping plate on the side of the end cap at the first end of the connecting rod is not smaller than the distance between the two end caps, the length of the clamping plate on the side of the second end of the connecting rod is not larger than the distance between the two connecting rods, and the arrangement can ensure that the distance between the first combination block and the second combination block is reduced when the clamping is carried out.
Or the first combined block and the second combined block are in the same structure and are formed by splicing 2-4 small blocks, and a through hole is formed in the outer side of each small block; the through hole does not pass through the threaded hole; a connecting rod passing through a through hole on the small block is arranged; the first end of the connecting rod is provided with an end cap with a size larger than that of the hole of the tube hole, and the second end of the connecting rod is provided with a distance locking structure for locking the distance between the first combination block and the second combination block.
Furthermore, the distance locking structure comprises a plurality of small holes I arranged on the connecting rod and a locking small rod arranged outside any small block and inserted into the small holes I.
Furthermore, the first small hole is a hole penetrating through the connecting rod, and the length of the locking small rod is greater than the maximum aperture of the through hole; and a locking cap is arranged on the locking small rod.
Furthermore, two through holes are formed in the outer side of the bearing block, and one through hole is formed in the outer side of the inserting block, so that the bearing block can be selected to finish fixing when the small animal vertebral body is fixed, and the inserting block and the through holes in the two sides of the bearing block can be selected to finish fixing when large animals are pointed.
Furthermore, the connecting plate is not provided with a through hole
Further, the two sides of the clamping pincers are provided with different clamping plates, the length of the first clamping plate on the side of the end cap at the first end of the connecting rod is not smaller than the distance between the two end caps, the length of the second clamping plate on the side of the second end of the connecting rod is not larger than the distance between the two connecting rods, and the clamping and fixing of the combination block can be guaranteed through the arrangement.
Further, the lantern ring and the connecting plate of the connecting lantern ring that cup joints on the connecting rod second end are set up, and pinch-off blades two set up in the two outsides of connecting plate, and the length of pinch-off blades two is not more than the length of connecting plate.
Furthermore, the connecting rod is a circular rod, and a limiting structure which ensures that the small hole I is perpendicular to the upper surface of the first combination block or the second combination block is arranged on the connecting rod and the wall of the through hole.
Furthermore, the limiting structure is a protruding structure arranged on the connecting rod and a protruding moving groove arranged on the wall of the through hole and corresponding to the groove.
Further, set up on the lantern ring and supply the dead little pole male aperture two of lock, through set up aperture one on the lantern ring, realization that can be more accurate is dead to the lock of fixed position.
Or the first combination block and the second combination block are different in structure and are formed by a single combination block, and two sides of the first combination block extend out of two extension rods towards one direction of the combination block; an extension rod extends out of the middle of the second combination block towards one direction of the combination block; when the combination is carried out, the extension rod in the middle of the second combination block extends into the space between the extension rods at two sides of the first combination block; the three extension rods are provided with penetrating and punching holes which can be completely punched for the insertion rods to be inserted when combined; the clamping plates on the two sides of the clamping pincers are equal-size clamping plates. When the combined block is used, the middle extending rod extends into the position between the two side extending rods, the distance between the combined blocks is reduced by clamping the middle extending rod by the clamping pliers, and the inserted rod is inserted into the opposite punching holes to complete fixation when the opposite punching holes are completely opposite punched.
Or the first combination block and the second combination block are different in structure and are formed by splicing 2-4 small blocks, two extending rods extend out of two sides of each small block of the first combination block in the direction of the first combination block, and one extending rod extends out of two sides of each small block of the second combination block in the direction of the second combination block; when the combination is carried out, the extension rod in the middle of the two small blocks of the combination block extends into the space between the extension rods on the two sides of the small block of the combination block, and all the extension rods can be completely opposite punched to allow the insertion rods to be inserted to penetrate through the extension rods when the combination is set.
Furthermore, a transverse through groove is arranged above the opposite punching holes of all the extension rods; set up a lockable screw in the groove transversely runs through, during the use, can guarantee through setting up this screw that the relative position of combination piece is unanimous, when pressing from both sides tight pincers can not once accomplish tight operation, reach the effect of locking temporarily through the position of locking screw dead combination piece one and combination piece two, before the tight pincers of next operation as long as begin to lock from the position last time before, save operating time, guarantee operation safety.
Furthermore, 2-3 pairs of punched holes are arranged on each extension rod, and the arrangement can ensure the stability of the fixed structure.
Furthermore, small notches are formed in the outer sides of the first combination block and the second combination block; the small protrusions entering the small notches are correspondingly arranged on the clamping plate, and complete correspondence can be effectively realized through the arrangement.
Furthermore, the binding clip of the clamping pincers is connected with the clamping plate in a combined way, and the clamping plates with different lengths are arranged; the clamping plates with different lengths are selected according to the shape of the vertebral body and the number of the combined blocks.
Furthermore, the first combination block and the second combination block are cuboid combination blocks, and the first combination block and the second combination block are made of medical technical materials.
Furthermore, the bottom surfaces of the first combination block and the second combination block are set to be curved surfaces matched with the contact surfaces, so that effective adhesion in use is guaranteed.
Compared with the prior art, the technical scheme of the invention is carried out in a mode of arranging the first combination block and the second combination block by one or more blocks, and the combination blocks can be properly selected to be spliced according to needs during operation.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an embodiment of the present invention in which a first combination block is identical to a second combination block, and each combination block is provided with two small blocks;
FIG. 2 is a schematic structural diagram of an embodiment of the first combined block with the clamping plate, which is the same as the second combined block and is provided with two small blocks;
FIG. 3 is a schematic structural diagram of an embodiment of the present invention in which a first combination block with a clamping plate, a sleeve ring and a connecting plate structure is the same as a second combination block, and each combination block is provided with two small blocks;
FIG. 4 is a partial enlarged structural view of the small notch and the small protrusion of the present invention;
FIG. 5 is a partial structural diagram of a combination block in which a combination block I is identical to a combination block II and each combination block is provided with two small blocks;
FIG. 6 is a schematic diagram of a receiving block structure in which a first combination block is the same as a second combination block, and each combination block is provided with two small blocks;
FIG. 7 is a schematic structural diagram of an insertion block having two small blocks for each combination block, wherein the combination block I is the same as the combination block II;
FIG. 8 is a schematic diagram of the overall structure of an embodiment of the present invention in which a first combination block is different from a second combination block, and each combination block is provided with two small blocks;
FIG. 9 is a partial structural diagram of a combination block of the present invention, in which a combination block I is different from a combination block II, and each combination block is provided with two small blocks;
FIG. 10 is a schematic view of a combination block with screws, wherein the combination block I is different from the combination block II, and each combination block is provided with two small blocks;
FIG. 11 is a schematic view of a combination block I and a combination block II, each of which is provided with two small blocks;
FIG. 12 is a schematic diagram of a receiving block of a first combination block, which is different from a second combination block and has two small blocks for each combination block;
FIG. 13 is a schematic diagram of a receiving block structure of a second combination block, which is different from the first combination block and is provided with two small blocks for each combination block;
FIG. 14 is a schematic diagram of a combination block I and a combination block II having two small blocks for each combination block;
FIG. 15 is a schematic diagram of an insertion block structure of a first combination block different from a second combination block and provided with two small blocks for each combination block according to the present invention;
FIG. 16 is a schematic diagram of an insertion block structure of a second combination block different from the first combination block and provided with two small blocks for each combination block according to the present invention;
FIG. 17 is a schematic view of a clamping vise in accordance with the present invention;
in the figure, 1, a first block is combined; 2. combining the blocks II; 3. screw holes; 4. clamping pincers; 41. a clamping plate; 51. inserting a block; 52. a bearing block; 53. an insert plate; 54. an insertion hole; 61. a small groove; 62. a barb; 71. a through hole; 72. a connecting rod; 73. a first small hole; 74. locking the small rod; 75. a collar; 76. a connecting plate; 77. a protruding structure; 78. a protrusion moving groove; 79. a second small hole; 81. an extension bar; 82. punching; 83. a transverse through slot; 84. a small notch; 85. small and prominent.
Detailed Description
EXAMPLE 1 Adjustable and Assemble animal vertebral body fixation device
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole 3 for fixing the combined block to a screw on a vertebral body, and the upper surfaces of the combined block I1 and the combined block II 2 are provided with the screw hole 3; a clamping pincer 4 for reducing the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I1 and a combination block II 2; the outer edges of the first combination block 1 and the second combination block 2 are provided with planes, and the clamping pincers 4 are arranged on clamping plates 41 attached to the planes. When in use, the combination block I1 is arranged on one vertebral body, and the combination block II 2 is arranged on the other vertebral body; the screw is arranged in the screw hole 3 and screwed into a bone, the first combined block 1 and the second combined block 2 are fixed to vertebral bodies on two sides, then the first combined block 1 and the second combined block 2 are tightly clamped through the clamping pliers 4, the distance between the first combined block 1 and the second combined block 2 is reduced, when the proper distance is reached, the first combined block 1 and the second combined block 2 are locked through the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the intervertebral fusion material is further promoted to play a role.
The combined block I1 and the combined block II 2 have the same structure; the combination block I1 and the combination block II 2 are formed by a single block, and two through holes 71 are respectively formed in the outer sides of the rear side surfaces of the combination block I1 and the combination block II 2; the through hole 71 does not pass through the threaded hole; a connecting rod 72 passing through the through holes 71 on the first combination block 1 and the second combination block 2 is arranged; the first end of the connecting rod 72 is provided with an end cap with a size larger than that of the hole of the pipe hole, and the second end of the connecting rod 72 is provided with a distance locking structure for locking the distance between the first combination block 1 and the second combination block 2. The distance locking structure comprises a plurality of small holes I73 arranged on the connecting rod 72 and a locking small rod 74 which is arranged on the outer side of the combination block I1 or the combination block II 2 and inserted into the small holes I73. The first small hole 73 is a hole penetrating through the connecting rod 72, and the length of the locking small rod 74 is larger than the maximum aperture of the through hole 71; and a locking cap is arranged on the locking small rod 74. Different clamping plates 41 are arranged on two sides of the clamping pincers 4, the length of the clamping plate 41 on the first end cap side of the connecting rod 72 is not smaller than the distance between the two end caps, the length of the clamping plate 41 on the second end cap side of the connecting rod 72 is not larger than the distance between the two connecting rods 72, and the arrangement can ensure that the distance between the first combination block 1 and the second combination block 2 is reduced during clamping.
The lantern ring 75 sleeved on the second end of the connecting rod 72 and the connecting plate 76 connected with the lantern ring 75 are arranged, the second clamping plate 41 is arranged on the outer side of the connecting plate 76, and the length of the second clamping plate 41 is not larger than that of the connecting plate 76.
The connecting rod 72 is a circular rod, and a limiting structure which ensures that the small hole I73 is perpendicular to the upper surface of the first combined block 1 or the second combined block 2 is arranged on the wall of the connecting rod 72 and the through hole 71. The limiting structures are protruding structures 77 arranged on the connecting rod 72 and corresponding groove protruding moving grooves 78 arranged on the wall of the through hole 71. The lantern ring 75 is provided with a second small hole 79 for inserting the locking small rod 74, and the fixing position can be locked more accurately by arranging the first small hole 73 on the lantern ring 75.
The binding clip of the clamping pincers 4 is combined and connected with the clamping plate 41, and the clamping plates 41 with different lengths are arranged; different lengths of clamping plate 41 are selected depending on the shape of the vertebral body and the number of modular blocks.
The first combined block 1 and the second combined block 2 are cuboid combined blocks, and the first combined block 1 and the second combined block 2 are made of medical technical materials.
EXAMPLE 2 Adjustable and Assemble animal vertebral body fixation device
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole 3 for fixing the combined block to a screw on a vertebral body, and the upper surfaces of the combined block I1 and the combined block II 2 are provided with the screw hole 3; a clamping pincer 4 for reducing the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I1 and a combination block II 2; the outer edges of the first combination block 1 and the second combination block 2 are provided with planes, and the clamping pincers 4 are arranged on clamping plates 41 attached to the planes. When in use, the combination block I1 is arranged on one vertebral body, and the combination block II 2 is arranged on the other vertebral body; the screw is arranged in the screw hole 3 and screwed into a bone, the first combined block 1 and the second combined block 2 are fixed to vertebral bodies on two sides, then the first combined block 1 and the second combined block 2 are tightly clamped through the clamping pliers 4, the distance between the first combined block 1 and the second combined block 2 is reduced, when the proper distance is reached, the first combined block 1 and the second combined block 2 are locked through the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the intervertebral fusion material is further promoted to play a role.
The combination block I1 and the combination block II 2 are respectively spliced by 2 small blocks, and when the combination block I1 and the combination block II 2 are respectively spliced by two small blocks; the first combination block 1 and the second combination block 2 both comprise an inserting block 51 and a bearing block 52, and an inserting plate 53 extends out of the inserting block 51; the receiving block 52 is provided with an insertion hole 54 into which the insertion plate 53 is inserted; the screens structure is including setting up the little recess 61 in inserting hole 54, and stretch into barb protruding 62 in little recess 61, and the setting of barb protruding 62 guarantees that insert plate 53 stretches into, and barb protruding 62 card is gone into the recess internal locking position when removing little recess 61 department, places and inserts plate 53 and withdraws from in inserting hole 54.
The first combined block 1 and the second combined block 2 have the same structure, the first combined block 1 and the second combined block 2 are spliced by 2-4 small blocks, and the outer side of each small block is provided with a through hole 71; the through hole 71 does not pass through the threaded hole; a connecting rod 72 passing through the through hole 71 on the small block; the first end of the connecting rod 72 is provided with an end cap with a size larger than that of the hole of the pipe hole, and the second end of the connecting rod 72 is provided with a distance locking structure for locking the distance between the first combination block 1 and the second combination block 2. The distance locking structure comprises a plurality of small holes I73 arranged on the connecting rod 72 and a locking small rod 74 which is arranged on the outer side of any small block and is inserted into the small holes I73. The first small hole 73 is a hole penetrating through the connecting rod 72, and the length of the locking small rod 74 is larger than the maximum aperture of the through hole 71; and a locking cap is arranged on the locking small rod 74. Two through holes 71 are arranged on the outer side of the bearing block 52, and one through hole 71 is arranged on the outer side of the inserting block 51, so that the arrangement can ensure that only the bearing block 52 is selected to finish fixing when the small animal vertebral body is fixed, and the inserting block 51 is selected to be connected with the through holes 71 on the two sides of the bearing block to finish fixing when a large animal is treated. The connecting plate 76 is not provided with the through holes 71, two sides of the clamping pincers 4 are provided with different clamping plates 41, the length of the first clamping plate 41 on the first end cap side of the connecting rod 72 is not smaller than the distance between the two end caps, the length of the second clamping plate 41 on the second end cap side of the connecting rod 72 is not larger than the distance between the two connecting rods 72, and the clamping and fixing of the combined block can be guaranteed through the arrangement.
The lantern ring 75 sleeved on the second end of the connecting rod 72 and the connecting plate 76 connected with the lantern ring 75 are arranged, the second clamping plate 41 is arranged on the outer side of the connecting plate 76, and the length of the second clamping plate 41 is not larger than that of the connecting plate 76.
The connecting rod 72 is a circular rod, and a limiting structure which ensures that the small hole I73 is perpendicular to the upper surface of the first combined block 1 or the second combined block 2 is arranged on the wall of the connecting rod 72 and the through hole 71. The limiting structures are protruding structures 77 arranged on the connecting rod 72 and corresponding groove protruding moving grooves 78 arranged on the wall of the through hole 71. The lantern ring 75 is provided with a second small hole 79 for inserting the locking small rod 74, and the fixing position can be locked more accurately by arranging the first small hole 73 on the lantern ring 75.
The binding clip of the clamping pincers 4 is combined and connected with the clamping plate 41, and the clamping plates 41 with different lengths are arranged; different lengths of clamping plate 41 are selected depending on the shape of the vertebral body and the number of modular blocks.
The first combined block 1 and the second combined block 2 are cuboid combined blocks, and the first combined block 1 and the second combined block 2 are made of medical technical materials.
EXAMPLE 3 Adjustable and Assemble animal vertebral body fixation device
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole 3 for fixing the combined block to a screw on a vertebral body, and the upper surfaces of the combined block I1 and the combined block II 2 are provided with the screw hole 3; a clamping pincer 4 for reducing the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I1 and a combination block II 2; the outer edges of the first combination block 1 and the second combination block 2 are provided with planes, and the clamping pincers 4 are arranged on clamping plates 41 attached to the planes. When in use, the combination block I1 is arranged on one vertebral body, and the combination block II 2 is arranged on the other vertebral body; the screw is arranged in the screw hole 3 and screwed into a bone, the first combined block 1 and the second combined block 2 are fixed to vertebral bodies on two sides, then the first combined block 1 and the second combined block 2 are tightly clamped through the clamping pliers 4, the distance between the first combined block 1 and the second combined block 2 is reduced, when the proper distance is reached, the first combined block 1 and the second combined block 2 are locked through the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the intervertebral fusion material is further promoted to play a role.
When the first combination block 1 and the second combination block 2 are respectively spliced by 3-4 small blocks, the first combination block 1 and the second combination block 2 both comprise an insertion block 51 and a bearing block 52 at two sides and a middle 1-2 middle block; the insertion plate 53 is protruded from the insertion block 51; the receiving block 52 is provided with an insertion hole 54 into which the insertion plate 53 is inserted; one side of the middle block is provided with an inserting plate 53, and the other side is provided with an inserting hole 54; corresponding detent structures are provided in the insertion plate 53 and the insertion hole 54.
The screens structure is including setting up the little recess 61 in inserting hole 54, and stretch into barb protruding 62 in little recess 61, and the setting of barb protruding 62 guarantees that insert plate 53 stretches into, and barb protruding 62 card is gone into the recess internal locking position when removing little recess 61 department, places and inserts plate 53 and withdraws from in inserting hole 54.
The first combined block 1 and the second combined block 2 have the same structure, the first combined block 1 and the second combined block 2 are spliced by 2-4 small blocks, and the outer side of each small block is provided with a through hole 71; the through hole 71 does not pass through the threaded hole; a connecting rod 72 passing through the through hole 71 on the small block; the first end of the connecting rod 72 is provided with an end cap with a size larger than that of the hole of the pipe hole, and the second end of the connecting rod 72 is provided with a distance locking structure for locking the distance between the first combination block 1 and the second combination block 2. The distance locking structure comprises a plurality of small holes I73 arranged on the connecting rod 72 and a locking small rod 74 which is arranged on the outer side of any small block and is inserted into the small holes I73. The first small hole 73 is a hole penetrating through the connecting rod 72, and the length of the locking small rod 74 is larger than the maximum aperture of the through hole 71; and a locking cap is arranged on the locking small rod 74. Two through holes 71 are arranged on the outer side of the bearing block 52, and one through hole 71 is arranged on the outer side of the inserting block 51, so that the arrangement can ensure that only the bearing block 52 is selected to finish fixing when the small animal vertebral body is fixed, and the inserting block 51 is selected to be connected with the through holes 71 on the two sides of the bearing block to finish fixing when a large animal is treated. The connecting plate 76 is not provided with the through holes 71, two sides of the clamping pincers 4 are provided with different clamping plates 41, the length of the first clamping plate 41 on the first end cap side of the connecting rod 72 is not smaller than the distance between the two end caps, the length of the second clamping plate 41 on the second end cap side of the connecting rod 72 is not larger than the distance between the two connecting rods 72, and the clamping and fixing of the combined block can be guaranteed through the arrangement.
The lantern ring 75 sleeved on the second end of the connecting rod 72 and the connecting plate 76 connected with the lantern ring 75 are arranged, the second clamping plate 41 is arranged on the outer side of the connecting plate 76, and the length of the second clamping plate 41 is not larger than that of the connecting plate 76.
The connecting rod 72 is a circular rod, and a limiting structure which ensures that the small hole I73 is perpendicular to the upper surface of the first combined block 1 or the second combined block 2 is arranged on the wall of the connecting rod 72 and the through hole 71. The limiting structures are protruding structures 77 arranged on the connecting rod 72 and corresponding groove protruding moving grooves 78 arranged on the wall of the through hole 71. The lantern ring 75 is provided with a second small hole 79 for inserting the locking small rod 74, and the fixing position can be locked more accurately by arranging the first small hole 73 on the lantern ring 75.
The binding clip of the clamping pincers 4 is combined and connected with the clamping plate 41, and the clamping plates 41 with different lengths are arranged; different lengths of clamping plate 41 are selected depending on the shape of the vertebral body and the number of modular blocks.
The first combined block 1 and the second combined block 2 are cuboid combined blocks, and the first combined block 1 and the second combined block 2 are made of medical technical materials.
EXAMPLE 4 Adjustable and Assemble animal vertebral body fixation device
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole 3 for fixing the combined block to a screw on a vertebral body, and the upper surfaces of the combined block I1 and the combined block II 2 are provided with the screw hole 3; a clamping pincer 4 for reducing the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I1 and a combination block II 2; the outer edges of the first combination block 1 and the second combination block 2 are provided with planes, and the clamping pincers 4 are arranged on clamping plates 41 attached to the planes. When in use, the combination block I1 is arranged on one vertebral body, and the combination block II 2 is arranged on the other vertebral body; the screw is arranged in the screw hole 3 and screwed into a bone, the first combined block 1 and the second combined block 2 are fixed to vertebral bodies on two sides, then the first combined block 1 and the second combined block 2 are tightly clamped through the clamping pliers 4, the distance between the first combined block 1 and the second combined block 2 is reduced, when the proper distance is reached, the first combined block 1 and the second combined block 2 are locked through the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the intervertebral fusion material is further promoted to play a role.
The first combination block 1 and the second combination block 2 are different in structure, the first combination block 1 and the second combination block 2 are formed by a single block, and two extending rods 81 extend out of two sides of the first combination block 1 towards the first combination block 1; an extension rod 81 extends out of the middle of the second combined block 2 towards the first combined block 1; when the combination is carried out, the extension rod in the middle of the combination block II 2 extends into the space between the extension rods at the two sides of the combination block I1; the three extension rods 81 are provided with penetrating and punching holes 82 which can completely punch the insertion rods when combined; the clamping plates 41 on both sides of the clamping pincers 4 are equally large clamping plates 41. When the combined block is used, the middle extending rod extends into the position between the two side extending rods, the distance between the combined blocks is reduced by clamping the clamping pliers 4, and when the opposite punching holes 82 are completely opposite punched, the inserted rod is inserted into the opposite punching holes 82 to complete fixation.
A transverse through groove 83 is arranged above the opposite punching holes 82 of all the extension rods 81; the locking screw is arranged in the transverse through groove 83, so that when the combined clamp 4 is used, the relative positions of the combined blocks can be ensured to be consistent, when the clamping operation cannot be completed once, the combined blocks I1 and II 2 are locked by the locking screw to achieve the temporary locking effect, and before the clamping operation 4 is operated next time, the combined clamp is locked from the last position, so that the operation time is saved, and the operation safety is ensured. 2-3 counter punched holes 82 are provided on each of the protruding rods 81, which arrangement ensures the stability of the structure after fixation.
The binding clip of the clamping pincers 4 is combined and connected with the clamping plate 41, and the clamping plates 41 with different lengths are arranged; different lengths of clamping plate 41 are selected depending on the shape of the vertebral body and the number of modular blocks.
The first combined block 1 and the second combined block 2 are cuboid combined blocks, and the first combined block 1 and the second combined block 2 are made of medical technical materials.
EXAMPLE 4 Adjustable and Assemble animal vertebral body fixation device
An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole 3 for fixing the combined block to a screw on a vertebral body, and the upper surfaces of the combined block I1 and the combined block II 2 are provided with the screw hole 3; a clamping pincer 4 for reducing the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I1 and a combination block II 2; the outer edges of the first combination block 1 and the second combination block 2 are provided with planes, and the clamping pincers 4 are arranged on clamping plates 41 attached to the planes. When in use, the combination block I1 is arranged on one vertebral body, and the combination block II 2 is arranged on the other vertebral body; the screw is arranged in the screw hole 3 and screwed into a bone, the first combined block 1 and the second combined block 2 are fixed to vertebral bodies on two sides, then the first combined block 1 and the second combined block 2 are tightly clamped through the clamping pliers 4, the distance between the first combined block 1 and the second combined block 2 is reduced, when the proper distance is reached, the first combined block 1 and the second combined block 2 are locked through the distance locking structure, the purpose of fixing the vertebral bodies is achieved, and the intervertebral fusion material is further promoted to play a role.
When the combination block I1 and the combination block II 2 are respectively spliced by two small blocks; the first combination block 1 and the second combination block 2 both comprise an inserting block 51 and a bearing block 52, and an inserting plate 53 extends out of the inserting block 51; the receiving block 52 is provided with an insertion hole 54 into which the insertion plate 53 is inserted; the other side is provided with an insertion hole 54; corresponding detent structures are provided in the insertion plate 53 and the insertion hole 54.
The screens structure is including setting up the little recess 61 in inserting hole 54, and stretch into barb protruding 62 in little recess 61, and the setting of barb protruding 62 guarantees that insert plate 53 stretches into, and barb protruding 62 card is gone into the recess internal locking position when removing little recess 61 department, places and inserts plate 53 and withdraws from in inserting hole 54.
The first combination block 1 and the second combination block 2 are different in structure, the first combination block 1 and the second combination block 2 are formed by splicing 2-4 small blocks, two sides of each small block of the first combination block 1 extend out of two extension rods 81 towards the first combination block 1, and two sides of each small block of the second combination block 2 extend out of one extension rod 81 towards the first combination block 1; during combination, the extension rod in the middle of the small combined block II 2 extends into the space between the extension rods on two sides of the small combined block I1, and all the extension rods 81 are provided with through counter-punching holes 82 which can be completely counter-punched for insertion of the insertion rods during combination.
A transverse through groove 83 is arranged above the opposite punching holes 82 of all the extension rods 81; the locking screw is arranged in the transverse through groove 83, so that when the combined clamp 4 is used, the relative positions of the combined blocks can be ensured to be consistent, when the clamping operation cannot be completed once, the combined blocks I1 and II 2 are locked by the locking screw to achieve the temporary locking effect, and before the clamping operation 4 is operated next time, the combined clamp is locked from the last position, so that the operation time is saved, and the operation safety is ensured. 2-3 counter punched holes 82 are provided on each of the protruding rods 81, which arrangement ensures the stability of the structure after fixation.
The binding clip of the clamping pincers 4 is combined and connected with the clamping plate 41, and the clamping plates 41 with different lengths are arranged; different lengths of clamping plate 41 are selected depending on the shape of the vertebral body and the number of modular blocks.
The first combined block 1 and the second combined block 2 are cuboid combined blocks, and the first combined block 1 and the second combined block 2 are made of medical technical materials.
The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.
Claims (3)
1. An adjustable and assembled animal vertebral body fixing instrument comprises two combination blocks arranged on two vertebral bodies; the combined block is provided with a screw hole for fixing the combined block to a screw on a vertebral body, and the clamping pliers reduce the distance between the two combined blocks; and a distance locking structure for effectively locking the distance between the two combined blocks; the combination block is a combination block I and a combination block II; the outer edges of the first combination block and the second combination block are provided with planes, and the clamping pincers are provided with clamping plates attached to the planes; the first combined block is formed by splicing 2-4 small blocks; the second combination block is formed by splicing 2-4 small blocks; the number of the combined blocks I is the same as that of the combined blocks II, and the combined blocks I and II are correspondingly combined; when the first combination block and the second combination block are respectively spliced by two small blocks, the first combination block and the second combination block both comprise an insertion block and a bearing block, and one side surface of the insertion block extends out of the insertion plate; the outer side of the bearing block is provided with a through hole which penetrates through two side faces adjacent to the side face where the insertion plate is located; when the first combination block and the second combination block are respectively spliced by 3-4 small blocks, the first combination block and the second combination block comprise an inserting block and a bearing block at two sides and 1-2 middle blocks in the middle, and an inserting plate extends out of one side face of the inserting block; the outer side of the bearing block is provided with a through hole which penetrates through two side faces adjacent to the side face where the insertion plate is located, an insertion hole for the insertion plate to insert is formed in the bearing block, the outer side of the bearing block is provided with a through hole which penetrates through two side faces adjacent to the side face where the insertion hole is located, one side of the middle block is provided with the insertion plate, and the other side of the middle block is provided with the insertion hole; corresponding clamping structures are arranged in the insertion plate and the insertion holes; the first combination block and the second combination block have the same structure, and the through hole does not pass through the screw hole; a connecting rod passing through the through holes on the first combined block and the corresponding small blocks of the first combined block is arranged; the first end of the connecting rod is provided with an end cap with the size larger than that of the hole of the pipe hole, and the second end of the connecting rod is provided with a distance locking structure for locking the distance between the first combination block and the second combination block; the combined block I is arranged on one vertebral body, and the combined block II is arranged on the other vertebral body; the screw is arranged in the screw hole, the screw is screwed into a bone, the first combination block and the second combination block are fixed to vertebral bodies on two sides, then the first combination block and the second combination block are clamped tightly through the clamping pincers, the distance between the first combination block and the second combination block is shortened, and when the proper distance is reached, the first combination block and the second combination block are locked through the distance locking structure.
2. The adjustable and configurable animal vertebral fixation device of claim 1 wherein the detent structure comprises a small recess disposed within the insertion aperture and a barb extending into the small recess.
3. An adjustable and assemblable animal vertebral fixation device as defined in any one of claims 1 to 2, wherein the clamping jaws are provided with clamping plates of different lengths, connected in combination with the clamping plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192282.1A CN112294501B (en) | 2020-10-30 | 2020-10-30 | Adjustable and assembled animal vertebral body fixing instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011192282.1A CN112294501B (en) | 2020-10-30 | 2020-10-30 | Adjustable and assembled animal vertebral body fixing instrument |
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| CN112294501A CN112294501A (en) | 2021-02-02 |
| CN112294501B true CN112294501B (en) | 2021-09-10 |
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| CN205359613U (en) * | 2016-01-25 | 2016-07-06 | 李中锋 | Pincers are driven to two -way side of centrum |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620443A (en) * | 1995-01-25 | 1997-04-15 | Danek Medical, Inc. | Anterior screw-rod connector |
| WO2009055537A1 (en) * | 2007-10-23 | 2009-04-30 | K2M, Inc. | Dynamic cervical plate |
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|---|---|---|---|---|
| CN1169848A (en) * | 1996-05-31 | 1998-01-14 | 美商·艾克罗米德公司 | Spinal column retaining apparatus |
| CN101056590A (en) * | 2004-10-28 | 2007-10-17 | 生物动力有限责任公司 | Adjustable bone plate |
| CN101594834A (en) * | 2007-01-30 | 2009-12-02 | 乌尔里克两合公司 | Plate-implant especially for spinal column |
| CN202184781U (en) * | 2011-07-01 | 2012-04-11 | 周百岁 | Reset traction forceps for department of orthopedics |
| CN103190948A (en) * | 2012-01-04 | 2013-07-10 | 中国科学院深圳先进技术研究院 | Internal vertebra fixing device |
| CN103598909A (en) * | 2013-11-21 | 2014-02-26 | 江苏百得医疗器械有限公司 | Posterior spinal fixation instrument |
| CN204318882U (en) * | 2014-12-19 | 2015-05-13 | 王长明 | Medical guiding point-type reset forceps |
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| CN205359613U (en) * | 2016-01-25 | 2016-07-06 | 李中锋 | Pincers are driven to two -way side of centrum |
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| CN112294501A (en) | 2021-02-02 |
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