CN103948425A - Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof - Google Patents
Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof Download PDFInfo
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- CN103948425A CN103948425A CN201410221549.3A CN201410221549A CN103948425A CN 103948425 A CN103948425 A CN 103948425A CN 201410221549 A CN201410221549 A CN 201410221549A CN 103948425 A CN103948425 A CN 103948425A
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- 238000000034 method Methods 0.000 title claims description 198
- 210000001020 neural plate Anatomy 0.000 title abstract 12
- 229910001285 shape-memory alloy Inorganic materials 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 210000001364 upper extremity Anatomy 0.000 claims description 28
- 239000000956 alloy Substances 0.000 claims description 9
- 229910045601 alloy Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 4
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- 230000006378 damage Effects 0.000 description 6
- 230000004927 fusion Effects 0.000 description 5
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
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- 210000001519 tissue Anatomy 0.000 description 2
- 206010052904 Musculoskeletal stiffness Diseases 0.000 description 1
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- 102000001708 Protein Isoforms Human genes 0.000 description 1
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- 230000007659 motor function Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7047—Clamps comprising opposed elements which grasp one vertebra between them
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers, e.g. stabilisers comprising fluid filler in an implant
- A61B17/7059—Cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
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Abstract
The invention discloses a neural plate zygapophysis pressurizing and fixing hook for lumbar vertebra fixing. The neural plate zygapophysis pressurizing and fixing hook comprises an arcuate main body, and a neural plate hook and a zygapophysis hook which are respectively arranged at the two ends of the arcuate main body, wherein the neural plate hook and the zygapophysis hook adopt C-shaped structures with inward openings, an anti-skid ratchet is arranged on the zygapophysis hook, and a keyhole is formed in the arcuate main body and in a position close to the zygapophysis hook. The processus transversus tension hook of the neural plate zygapophysis is made of medical shape memory alloy. Under a temperature lowering than 4 DEG C, the neural plate hook and the zygapophysis hook are propped open and expanded, the neural plate hook can be conveniently placed into the inferior margin of the neural plate of the inferior vertebral body of a target intervertebral space, and the zygapophysis hook is placed into the superior border of the zygapophysis of the superior vertebral body of the target intervertebral space or the superior border of the root of the processus transverses of the target intervertebral space. Under a water temperature higher than body temperature, the neural plate hook and the zygapophysis hook are tightened by using the memory effect of shape memory alloy, the neural plate hook and the zygapophysis hook are effectively fixed on the margo inferior of the neural plate of the inferior vertebral body of the target intervertebral space or the processus transversus of the zygapophysis of the superior vertebral body of the target intervertebral space, moreover, the arcuate main body shrinks, the restoring force of the arcuate main body exerts inward pressure onto a vertebral body adjacent to the target intervertebral space. Therefore, the purpose of fixing the adjacent segment of the target intervertebral space of the lumbar vertebra can be achieved.
Description
Technical field: the present invention relates to the technical field of medical apparatus and instruments, relate in particular to device and using method for stabilizing spine vertebral member
Background technology:
Other structural damages of breast lumbar intervertebral disc and lumbar vertebra are to cause the impaired major reason of even losing of human body pain, function of nervous system and motor function.Interbody fusion is a kind of basic operative mode for the treatment of at present lumbar intervertebral disc or lumbar vertebra structure disease.Its principle is centered by disease damage position; from the upper normal vertebral body in disease damage district, to doing bone grafting between the next normal vertebral body, be connected with the intersegmental generation bone of internal fixation envoy; make it to be fused on mechanics as a whole; thereby reach treatment spinal column disease damage; eliminate pain; prevent deformity, reconstruction of stability and the spinoneural object of protection.And wherein the interior fixing joint Invasive lumbar fusion device modus operandi of pedicle nail is the most general current interbody fusion mode, by pedicle screw, the interior of cone to be fixed, interpyramidal activity is relatively merged in restriction, can improve the success rate of spinal fusion.But in pedicle nail, be fixed on when enough support forces are provided and also caused stress shielding, easily cause the adverse consequencess such as bone dissolving, osteoporosis.And, owing to having increased the fixing of pedicle nail, not only greatly increased the wound of operation process, increased the probability of postoperative infection, nerve injury; Also greatly increase operating difficulty, extended operating time and intraoperative blood loss, and brought heavier financial burden to patient.In addition, owing to having limited the activity of lumbar vertebra, also easily cause stiff back of the body syndrome, or accelerate the regression of neighbouring section, greatly reduced patient's, particularly young patient quality of life.
For the deficiency of existing pedicle nail methods of internal fixation, the object of the invention is to existing fixed form to be further improved, provide that a kind of risk is less, the device for spinal fixation vertebral member of more convenient operation, and its using method is provided.
Summary of the invention
The object of the present invention is to provide the memorial alloy vertebral plate articular process pressurization fixation hook and the using method thereof that the upper and lower vertebrae of target intervertebral space are fixed for interbody fusion.
Be used for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra:
A, described vertebral plate articular process pressurization fixation hook 1 are containing arciform main body 11, vertebral lamina hook 12 and articular process hook 13;
B, described vertebral lamina hook 12 and articular process hook 13 are positioned at the two ends of arciform main body 11;
C, described vertebral plate articular process pressurization fixation hook 1 adopt medical memorial alloy manufacture;
D, described vertebral lamina hook 12 are positioned at the lower edge 41-1 of the vertebral plate 41 of the next vertebral body 4 of target intervertebral space 3, and described articular process hook 13 is positioned at the upper limb 51-1 of root or the root upper limb 52-1 of transverse process 52 of the articular process 51 of the upper vertebral body 5 of target intervertebral space 3.
Further, described articular process hook 13 has the radian matching with described articular process 51 or transverse process 52 outer surfaces.Because described articular process transverse process hook 13 has the radian matching with described articular process 51 or transverse process 52 outer surfaces, therefore, when described articular process hook 13 is inserted the articular process 51 of the upper vertebral body 5 of target intervertebral space or transverse process 52, can mate well with the surface of articular process 51 or transverse process 52, be difficult for coming off from articular process 51 or transverse process 52, can to the adjacent vertebral bodies of target intervertebral space, be fixed better.
The opening of described vertebral lamina hook 12 and articular process hook 13 is inwardly relative.Because described vertebral lamina hook 12 and the opening of articular process hook 13 have been taked inside relative design, therefore, when described vertebral lamina hook 12 is positioned at the lower edge 41-1 of the vertebral plate 41 of the next vertebral body 4 of target intervertebral space, when described articular process hook 13 is positioned at the upper limb 51-1 of root of articular process 51 of the upper vertebral body 5 of target intervertebral space or the upper limb 52-1 of the root of transverse process 52, opening inwardly described vertebral lamina hook 12 and the articular process hook 13 of design just can apply inside pressure to target cone, realizes the pressurization of the adjacent vertebral bodies of target gap is fixed.
Described vertebral lamina hook 12 is C shape hook structure, has smooth surface.Because described vertebral lamina hook 12 is C shape hook structure, therefore, while described vertebral lamina hook 12 being inserted to the lower edge 41-1 of vertebral plate 41 of the next vertebral body 4 of target intervertebral space 3, can hook easily the vertebral plate 41 of the next vertebral body 4.And, due to the smooth surface of having of described vertebral lamina hook 12, therefore, when inserting the lower edge of vertebral plate 41, effectively avoided unexpected injury tissue being caused due to surperficial burr.
Described articular process hook 13 is C shape hook.
Further, the inner surface of described articular process hook 13 can be provided with anti-skidding ratchet 13-1, can be also smooth surface 13-2.Because described articular process hook 13 is positioned at the upper limb 51-1 of root of articular process 51 or the upper limb 52-1 of the root of transverse process 52 of the upper vertebral body 5 of target intervertebral space, and the size of described articular process 51 or transverse process 52 is less, therefore, when described articular process hook 13 is hooked in the root 51-1 of described articular process 51 or the root 52-1 of transverse process 52, may come off.Therefore, in the present invention, the surface of described articular process hook 13 is also designed with to anti-skidding ratchet 13-1, better described articular process hook 13 is hooked in to the upper surface of described articular process 51 or transverse process 52, effectively prevent that described articular process transverse process hook 13 from coming off from described articular process 51 or transverse process 52.
In described main body 11, be also provided with lockhole 11-1, to facilitate locking.In order to prevent that described vertebral plate articular process tension hook 1 is in use unexpected, from target cone, come off, in described main body 11, be also provided with lockhole 11-1, by lockhole 11-1, by described vertebral plate articular process transverse process tension hook 1 locking, prevent that described vertebral plate articular process transverse process tension hook 1 from coming off from target cone.
During use, described vertebral plate articular process pressurization fixation hook 1 is inserted lower than in 4 degree frozen water, vertebral lamina hook 12 and articular process hook 13 are opened, described vertebral lamina hook 12 is inserted to the vertebral plate lower edge 41 of the next vertebral body 4 of target intervertebral space 3, described articular process hook 13 is inserted to the upper limb 51-1-1 of root 51-1 of articular process 51 or the upper limb 52-1-1 of the root 52-1 of transverse process 52 of the upper vertebral body 5 of target intervertebral space 3, after intensification, utilize the restoring force of memorial alloy, tighten up described vertebral lamina hook 12 and articular process hook 13, complete the fixing of lumbar vertebra target intervertebral space adjacent segment.
Because described vertebral plate articular process pressurization fixation hook 1 adopts medical marmem manufacture, therefore, utilize the memory effect of marmem, at low temperatures, described vertebral lamina hook 12 and articular process transverse process hook 13 can expand, open, can easily described vertebral lamina hook 12 be inserted to the vertebral plate lower edge 41 of the next vertebral body 4 of target intervertebral space 3, described articular process transverse process hook 13 be inserted to the upper limb 51-1 of root of articular process 51 or the upper limb 52-1 of the root of transverse process 52 of the upper vertebral body 5 of target intervertebral space; And at high temperature, in general use procedure, use 40 ℃ of warm water, marmem can shrink, utilize the contractility of marmem, just can tighten up described vertebral lamina hook 12 and articular process hook 13, described vertebral lamina hook 12 and articular process hook 13 are fixed on vertebral plate lower edge 41 and articular process 51 or transverse process 52 effectively, simultaneously described arciform main body 11 is shunk, target cone is applied to inside pressure, thereby reach the fixedly object of lumbar vertebra target intervertebral space 3 adjacent segments.
The present invention is comprised of arciform main body 11 and the vertebral lamina hook 12 and the articular process transverse process hook 13 that are respectively in arciform main body 11 two ends for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra.Described vertebral lamina hook 12 and articular process transverse process hook 13 are the inside C shape structure of opening, on described articular process transverse process hook 13, also can be provided with anti-skidding ratchet 13-1.Described vertebral plate articular process pressurization fixation hook 1 is manufactured by medical marmem.At low temperatures, described vertebral lamina hook 12 and articular process hook 13 can expand, open, can easily described vertebral lamina hook 12 be inserted to the vertebral plate lower edge 41 of the next vertebral body 4 of target intervertebral space 3, described articular process hook 13 be inserted to the upper limb 51-1 of root of articular process 51 or the upper limb 52-1 of the root of transverse process 52 of the upper vertebral body 5 of described target intervertebral space 3.Under 40 degree water temperatures, utilize the memory effect of marmem, can tighten up described vertebral lamina hook 12 and articular process hook 13, described vertebral lamina hook 12 and articular process hook 13 are fixed on described vertebral plate lower edge 41 and described articular process 51 or transverse process 52 effectively, simultaneously described arciform main body 11 is shunk, target cone is applied to inside pressure, thereby reach the object of target intervertebral space 3 adjacent segments described in fixing lumbar vertebra.
Accompanying drawing explanation
Fig. 1 be the present invention for replying the three-dimensional structure diagram after shrinking under the fixing vertebral plate articular process of lumbar vertebra pressurization fixation hook normality and during high temperature.
Fig. 1-1st, the front view of Fig. 1.
Fig. 1-2 is the top view of Fig. 1.
When Fig. 2 is low temperature the present invention for softened expansion of the fixing vertebral plate articular process of lumbar vertebra pressurization fixation hook time three-dimensional structure diagram.
Fig. 2-1st, the front view of Fig. 2.
Fig. 2-2nd, the top view of Fig. 2.
Fig. 3 is the present invention's the isomery three-dimensional structure diagram of the same race for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra.Fig. 3-1 is provided with lockhole 11-1 for main body 11, but the inner surface of articular process hook 13 is smooth surface 13-2 without anti-skidding ratchet 13-1; Fig. 3-2 are not provided with lockhole 11-1, the sliding ratchet 13-1 but the inner surface of articular process hook 13 is set up defences in main body 11; Fig. 3-3 are not provided with lockhole 11-1 in main body 11, and the inner surface of articular process hook 13 is also smooth surface 13-2 without anti-skidding ratchet 13-1, are the simplest vertebral plate articular process pressurization of structure fixation hook.
Fig. 4 is the work schematic diagram while inserting the vertebral plate lower edge of the next vertebral body of target intervertebral space and the articular process upper limb of upper vertebral body under the vertebral plate articular process pressurization fixation hook open configuration of the present invention under low temperature.
Fig. 5 is the work schematic diagram while fixing the vertebral plate lower edge of the next vertebral body of target intervertebral space and the articular process upper limb of upper vertebral body after the vertebral plate articular process pressurization fixation hook of the present invention under high temperature tightens up.
Fig. 6 is the work schematic diagram while inserting the vertebral plate lower edge of the next vertebral body of target intervertebral space and the transverse process root upper limb of upper vertebral body under the vertebral plate articular process pressurization fixation hook open configuration of the present invention under low temperature.
Fig. 7 is the work schematic diagram while fixing the vertebral plate lower edge of the next vertebral body of target intervertebral space and the transverse process root upper limb of upper vertebral body after the vertebral plate articular process pressurization fixation hook of the present invention under high temperature tightens up.
In above-mentioned figure:
1 is that 2 is frozen water for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra, and 3 is target intervertebral space, and 4 is the next vertebral body, and 5 is upper cone;
11 is arciform main body, and 12 is vertebral lamina hook, and 13 is articular process hook, and 41 is vertebral plate lower edge, and 51 is articular process, and 52 is transverse process;
11-1 is lockhole, and 13-1 is the anti-skidding ratchet that articular process transverse process hook inner surface is provided with, 13-2 be articular process transverse process hook without anti-skidding ratchet inner surface;
51-1 is the upper limb of articular process, the upper limb of the root that 52-1 is transverse process.
The specific embodiment
Embodiment 1: for the fixing the present invention of articular process for the fixing vertebral plate articular process of lumbar vertebra pressurization fixation hook
Referring to figs. 1 to Fig. 2-2, for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra, containing arciform main body 11, vertebral lamina hook 12 and articular process hook 13, described vertebral lamina hook 12 and articular process hook 13 are positioned at the two ends of arciform main body 11.Described vertebral lamina hook 12 can be inserted the lower edge 41-1 of the vertebral plate 41 of the next vertebral body 4 of target intervertebral space 3, and described articular process hook 13 can be inserted the upper limb 51-1 of root of the articular process 51 of the upper vertebral body 5 of target intervertebral space 3.Described vertebral plate articular process hook 1 adopts medical memorial alloy manufacture.
Further, described articular process hook 13 has the radian matching with described articular process 51 outer surfaces.Because described articular process hook 13 has the radian matching with described articular process 51 outer surfaces, therefore, when described articular process hook 13 is inserted articular process 51 top of the upper vertebral body 5 of target intervertebral space, can mate well with the surface of articular process 51, its inner surface is provided with anti-skidding ratchet 13-1 and is difficult for coming off from articular process 51, can to the cone of target intervertebral space, be fixed better.
Described vertebral lamina hook 12 has inwardly relative C shape hook structure of opening with articular process hook 13.Because described vertebral lamina hook 12 and the opening of articular process hook 13 have been taked inside relative C shape hook structure design, therefore, when described vertebral lamina hook 12 is positioned at the lower edge 41-1 of the vertebral plate 41 of the next vertebral body 4 of target intervertebral space, when described articular process hook 13 is positioned at the upper limb 51-1 of root of articular process 51 of the upper vertebral body 5 of target intervertebral space, can hook easily target cone, and described vertebral lamina hook 12 and articular process hook 13 that opening inwardly designs can apply inside pressure to target cone, realize fixing target cone.
Described vertebral lamina hook 12 and articular process hook 13 have smooth surface, therefore, when described vertebral lamina hook 12 is positioned at the lower edge 41-1 of the vertebral plate 41 of the next vertebral body 4 of target intervertebral space, when described articular process hook 13 is positioned at the upper limb 51-1-1 of root 51-1 of articular process 51 of the upper vertebral body 5 of target intervertebral space, effectively avoided unexpected injury tissue being caused due to surperficial burr.
During use, described vertebral plate articular process transverse process hook 1 is inserted in frozen water, vertebral lamina hook 12 and articular process hook 13 are opened, described vertebral lamina hook 12 is inserted to the vertebral plate lower edge 41 of the next vertebral body 4 of target intervertebral space 3, described articular process hook 13 is inserted to the root upper limb 51-1 of the articular process 51 of the upper vertebral body 5 of target intervertebral space 3, with reference to figure 4.After 40 ℃ of warm water rewarmings, utilize the restoring force of memorial alloy, tighten up described vertebral lamina hook 12 and articular process transverse process hook 13, described vertebral lamina hook 12 and articular process hook 13 are fixed in vertebral plate lower edge 41 and articular process 51 effectively, the anti-skidding ratchet 13-1 of the inner surface of articular process hook 13, can prevent better that described articular process hook 13 from coming off from described articular process 51, available screw locks articular process 51 by the lockhole 11-1 in arciform main body 11 if necessary, simultaneously described arciform main body 11 is shunk, target cone is applied to inside pressure, thereby reach the fixedly object of lumbar vertebra target intervertebral space 3 adjacent segments.With reference to figure 5.
Embodiment 2: for the fixing the present invention's of transverse process vertebral plate articular process pressurization fixation hook
With reference to figure 6 and Fig. 7, the present embodiment is from the different of embodiment 1, and the fixed position that the vertebral plate articular process of the present invention in the present embodiment adds upper cone 5 in the fixed object of pressure hook is the upper limb 52-1 of the root of transverse process 52.
During use, described vertebral plate articular process transverse process hook 1 is inserted in frozen water 2, vertebral lamina hook 12 and articular process hook 13 are opened, described vertebral lamina hook 12 is inserted to the vertebral plate lower edge 41 of the next vertebral body 4 of target intervertebral space 3, described articular process hook 13 is inserted to the upper limb 52-1-1 of root 52-1 of the transverse process 52 of the upper vertebral body 5 of target intervertebral space 3, with reference to figure 6.After 40 ℃ of warm water rewarmings, utilize the restoring force of memorial alloy, tighten up described vertebral lamina hook 12 and articular process hook 13, described vertebral lamina hook 12 and articular process hook 13 are fixed on vertebral plate lower edge 41 and transverse process 52 effectively, the anti-skidding ratchet 13-1 of the inner surface of articular process hook 13, can prevent better that described articular process hook 13 from coming off from described articular process 51, available screw locks articular process 51 by the lockhole 11-1 in arciform main body 11 if necessary, simultaneously described arciform main body 11 is shunk, target cone is applied to inside pressure, thereby reach the fixedly object of lumbar vertebra target intervertebral space 3 adjacent segments, with reference to figure 7.
Should be noted that the open structure with illustrating can replace by the identical structure of other effect herein, there is as described in Figure 3 the isoform of effect same.The embodiment that the present invention simultaneously introduces not realizes unique structure of the present invention.Although preferential embodiment of the present invention is introduced in this article and is illustrated; but those skilled in the art know and know that these embodiment illustrate; those skilled in the art can make countless variations, improvement and replacement; and can not depart from the present invention; therefore, should limit protection scope of the present invention according to the spirit and scope of appending claims of the present invention.
Claims (6)
1. for the fixing vertebral plate articular process pressurization fixation hook of lumbar vertebra, it is characterized in that:
A, described vertebral plate articular process pressurization fixation hook (1) are containing arciform main body (11), vertebral lamina hook (12) and articular process hook (13);
B, described vertebral lamina hook (12) and articular process hook (13) are positioned at the two ends of arciform main body (11);
C, the nearly articular process hook of described arciform main body (11) place can be provided with lockhole (11-1), to facilitate locking.
D, described articular process hook (13) can be provided with anti-skidding ratchet (13-1).
E, described vertebral plate articular process pressurization fixation hook (1) adopt medical memorial alloy manufacture;
F, described vertebral lamina hook (12) are positioned at the lower edge (41-1) of vertebral plate (41) of the next vertebral body (4) of target intervertebral space (3), and described articular process hook (13) is positioned at the upper limb (51-1) of root of articular process (51) or the upper limb (52-1) of the root of transverse process (52) of the upper vertebral body of target intervertebral space (3) (5).
2. vertebral plate articular process pressurization fixation hook according to claim 1, is characterized in that: described vertebral lamina hook (12) is inwardly relative with the opening of articular process hook (13).
3. vertebral plate articular process pressurization fixation hook according to claim 1, is characterized in that: described vertebral lamina hook (12) is C shape hook structure, has smooth surface.
4. vertebral plate articular process pressurization fixation hook according to claim 1, is characterized in that: described articular process hook (13) is C shape hook, has the radian matching with described articular process (51) or transverse process (52) outer surface.Its inner surface can be provided with anti-skidding ratchet (13-1), can be also smooth surface (13-2).
5. vertebral plate articular process pressurization fixation hook according to claim 1, is characterized in that: in described main body (11), can be provided with lockhole (11-1), to facilitate locking, also can not establish lockhole (11-2).
6. vertebral plate articular process according to claim 1 pressurization fixation hook, it is characterized in that: during use, described vertebral plate articular process pressurization fixation hook (1) is inserted in the frozen water lower than 4 degree, vertebral lamina hook (12) and articular process hook (13) are opened, described vertebral lamina hook (12) is inserted to the vertebral plate lower edge (41-1) of the next vertebral body of target intervertebral space (3) (4), described articular process hook (13) is inserted to the upper limb (51-1) of root of articular process (51) or the upper limb (52-1) of the root of transverse process (52) of the upper vertebral body of target intervertebral space (3) (5), after intensification, utilize the restoring force of memorial alloy, tighten up described vertebral lamina hook (12) and articular process transverse process hook (13), complete fixing between lumbar vertebra target intervertebral space (3) adjacent segment vertebral body (4) (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221549.3A CN103948425B (en) | 2014-05-23 | 2014-05-23 | Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof |
| PCT/CN2015/078154 WO2015176600A1 (en) | 2014-05-23 | 2015-05-02 | Memory alloy vertebral plate zygopophysis compression fixation hook and method of using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410221549.3A CN103948425B (en) | 2014-05-23 | 2014-05-23 | Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN201410221549.3A Expired - Fee Related CN103948425B (en) | 2014-05-23 | 2014-05-23 | Memory alloy neural plate zygopophysis pressurizing and fixing hook and using method thereof |
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| WO (1) | WO2015176600A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111728688A (en) * | 2020-08-04 | 2020-10-02 | 上海长征医院 | Bone grafting block fixing device for atlantoaxial posterior fusion after removal of atlas posterior arch |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992155B (en) * | 2018-07-27 | 2023-08-29 | 张家港市中医医院 | Nail plate type spinal articular process joint fixing system |
| US11331130B1 (en) | 2020-12-10 | 2022-05-17 | DePuy Synthes Products, Inc. | Sternal closure systems and methods of use thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103948425B (en) | 2017-02-15 |
| WO2015176600A1 (en) | 2015-11-26 |
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