CN202051805U - Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra - Google Patents
Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra Download PDFInfo
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- CN202051805U CN202051805U CN 201120098708 CN201120098708U CN202051805U CN 202051805 U CN202051805 U CN 202051805U CN 201120098708 CN201120098708 CN 201120098708 CN 201120098708 U CN201120098708 U CN 201120098708U CN 202051805 U CN202051805 U CN 202051805U
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- fixing head
- vertebral plate
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- cervical vertebra
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- 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, setting implements or the like
- 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 ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
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Abstract
The utility model discloses a full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra. An arch-shaped whole body is made by a narrow and long metal plate, and comprises two lateral mass fixed plates, two vertebral plate fixed plates, a spinous process platform fixed plate and a bone grafting fixed plate. The utility model is mainly used for vertebral canal reconstruction after a posterior expansive laminoplasty operation of vertebral canal, and can be simultaneously used for fixing an open-door lateral and a door shaft lateral during the expansive laminoplasty operation of the vertebral canal. In the utility model, the lengths of the fixed plates and the angles among the fixed plates meet the anatomical features of the vertebral canal of a human body, the biological attachment property is strong, the back pressure can be furthest resisted, the situation that at the crack at the vertebral plate open-door lateral is closed again and the door shaft is broken, so that the expansive laminoplasty operation of the vertebral canal is failed can be avoided, the whole body is suitable for the anatomical structure and biomechanic features of the posterior cervical vertebra of the human body, and the full vertebral plate-bilateral-mass centerpiece can be properly pre-bent when in use. The full vertebral plate-bilateral-mass centerpiece disclosed by the utility model is expected to replace an existing posterior cervical vertebra single-open-door fixed plate, so that the standard method of physiological property and stability reconstruction after the expansive laminoplasty operation of the vertebral canal of the posterior cervical vertebra can be realized on clinic.
Description
Technical field
This utility model relates to a kind of medical auxiliary apparatus, carry out the problem that way of escape single open-door canalis spinalis enlarges the plasty failure at the narrow disease patient of cervical spinal canal especially, a kind of posterior cervical single open-door canalis spinalis that is applicable to of design enlarges the general full vertebral plate of the cervical vertebra-bilateral piece bridging board of plasty.
Background technology
Narrow at cervical spinal canal, good operative effect depends on the correct selection of modus operandi and to the abundant decompression of spinal cord.It is to treat that cervical spinal canal is narrow can to keep one of most effectual way of vertebral plate again in good condition that cervical spinal canal enlarges plasty, and especially the single open-door canalis spinalis enlarges plasty, is widely used clinically because of it has more advantage.Situation such as, multi-segmental ossification of posterior longitudinal ligament narrow for congenital developmental character cervical spinal canal and anterior approach effect of easing stress are not obvious, operative treatment adopts posterior cervical single open-door canalis spinalis to enlarge plasty more, and canalis spinalis is fixed and rebuild to the vertebral plate that needs in the operation process to split reveal.At present common clinically fixing, reconstruction biomaterials are mainly cervical vertebra single open-door fixing head, but only fix in the side of opening the door, not fixedly door-hinge side vertebral plate and lateral mass simultaneously, can't form an integral body, fail to form physiological posterior cervical vertebral canal reconstruction, so its compressive property is relatively poor, can't effectively disperse the pressure from the cervical vertebra dead astern from whole anatomical structure, the vertebral canal plastic operation postoperative may take place under certain physical stress load open the door and close, cause operative failure.In addition, the way of escape fixing head operation complex operation step of using at present is not suitable for fixedly open the door simultaneously side and door-hinge side.
According to the data-searching that the applicant carried out, up to now, the fixing head that exists does not all have maximized realization posterior cervical single open-door canalis spinalis to enlarge the reconstruction of shaping postoperative canalis spinalis stability at present, and its ease for use of fixing head and the versatility that exists is unsatisfactory at present, and final surgical effect also is difficult to realize the physiological reconstruction of cervical vertebra rear pillar.The arch-shaped general cervical vertebra vertebral plate-lateral mass bridging board of applicant's design has been taken into account stability and ease for use simultaneously, has realized that the bio-imitability of cervical vertebra rear pillar is rebuild.
Summary of the invention
The purpose of this utility model is, the general full vertebral plate of a kind of cervical vertebra-bilateral piece bridging board is provided, the incorporate arch-shaped structural design of this bridging board, stablized the structure of open the door side and door-hinge side simultaneously, recover the connection of posterior cervical vertebral plate and lateral mass, realize the physiological reconstruction of cervical vertebra canalis spinalis, increased the stability of rear pillar to greatest extent.
To achieve these goals, this utility model is taked following technical solution:
The general full vertebral plate of a kind of cervical vertebra-bilateral piece bridging board is characterized in that it is made by a long narrow metallic plate, and wherein: both sides are the first lateral mass fixing head and the second lateral mass fixing head; Adjacent with the first lateral mass fixing head is the first vertebral plate fixing head, and the angle of the first lateral mass fixing head, the first vertebral plate fixing head lower edge extension line is 10 °; Adjacent with the second lateral mass fixing head is the bone grafting fixing head, and the angle of the second lateral mass fixing head and bone grafting fixing head lower edge extension line is 10 °; The first vertebral plate fixing head is adjacent with spinous process platform fixing head, and angle between the two is 140 ° on front view; The second vertebral plate fixing head is between spinous process platform fixing head and bone grafting fixing head; And be 140 ° on the angle front view between the second vertebral plate fixing head and spinous process platform fixing head and the bone grafting fixing head, constitute arch integral body;
All have screw fixed hole on the above-mentioned first lateral mass fixing head, the second lateral mass fixing head, spinous process platform fixing head, bone grafting fixing head, the first vertebral plate fixing head and the second vertebral plate fixing head.
The general full vertebral plate of cervical vertebra of the present utility model-bilateral piece bridging board can increase its stability to greatest extent, thereby reach the purpose of physiological and stability reconstruction when recovering the reconstruction of cervical vertebra canalis spinalis physiological; And this bridging board each several part length and between angle consistent with the human cervical spine anatomical features, biology, attaching property was good.This utility model is expected to replace existing posterior cervical single open-door fixing head, realizes that clinically posterior cervical canalis spinalis single open-door canalis spinalis enlarges the standard method of shaping postoperative physiological and stability reconstruction thereby become.
Description of drawings
Fig. 1 is the general full vertebral plate of cervical vertebra of the present utility model-bilateral piece bridging board front view.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the side view of Fig. 1.
Fig. 4 is the general full vertebral plate of the cervical vertebra of utility model-bilateral piece bridging board axonometric chart.
Labelling among the figure is represented respectively: 1, the first lateral mass fixing head, 6, the second lateral mass fixing head, 2, the first vertebral plate fixing head, 4, the second vertebral plate fixing head; 3, spinous process platform fixing head, 5, the bone grafting fixing head, 7, the first lateral mass fixing screw hole, 12, the second lateral mass fixing screw hole, 8, the first vertebral plate fixing screw hole, 10, the second vertebral plate fixing screw hole, 9, spinous process platform fixing screw hole, 11, bone grafting fixing head fixing screw hole.
Below in conjunction with accompanying drawing structure of the present utility model is described in further detail.
The specific embodiment
Studies show that present posterior cervical vertebral canal plastic operation art is carried out the bone grafting fixing head at the place of opening the door and fixed, its opposing rear pressure ability is relatively poor, and the side vertebral plate that usually causes opening the door is closed, and causes operative failure.Therefore, the existing fixed plate can not fundamentally be realized the physiological reconstruction of posterior cervical canalis spinalis.Integrated arch of the present utility model connects the full vertebral plate of the general cervical vertebra-bilateral piece bridging board of design, and the physiological of having rebuild way of escape vertebral plate and lateral mass fully is connected.Fix open the door side and door-hinge side structure simultaneously, truly the posterior cervical canalis spinalis has been carried out physiological and stability reconstruction.
The applicant had once designed a kind of new and improved single open-door minitype titanium nail titanium plate, adopt arch-shaped structure, at first rebuild effectively and form a complete bone canalis spinalis by plant bone mass and the vertebral plate that opens the door, rebuild the original arch-shaped structure of cervical spinal canal from anatomical structure, then titanium nail, titanium plate and plant bone mass, spinous process platform, both sides lateral mass and both sides vertebral plate are fixedly secured, thereby outside the bone canalis spinalis, form the protection of second layer rigid conduit again by bridging board, this kind method can obtain rigidity but not flexible fastening, also can obtain good stability at once; This titanium nail titanium plate can bear bigger pressure, can be by screw and vertebral body lateral mass with it well with its dispersion, can keep the width that opens the door and the volume of angle and canalis spinalis effectively, thereby keep good effect, with stability, the fastness maximization of the postoperative vertebral plate that opens the door.Prove by biomechanics experiment, the biomechanical property of this titanium nail titanium plate obviously is better than at present the traditional axle fishplate bar (centerpiece bridging board) of use clinically, its peak load, at closing time the load and power consumption all be higher than the latter, can reach about 6,11 and 7 times of the latter respectively, the biomechanics results contrast has significant significant difference.But find in the experiment that there is the not good problem of attaching property in it, after this, the applicant has done further improvement to the design of this new and improved single open-door minitype titanium nail titanium plate, its objective is and make it can be better and plant bone mass, the spinous process platform, both sides lateral mass and both sides vertebral plate attach, overall structure more meets the construction features of human cervical spine, biology, attaching property was better, and to the design of the chamfering structure of transition position, in operation, can allow the surgeon in art according to different situations pre-bending at any time, in time adjust angle, make things convenient for the surgeon to operate, shorten operating time, reduce manufacturing cost.Finally formed the general full vertebral plate of cervical vertebra of the present utility model-bilateral piece bridging board.
As Fig. 1～shown in Figure 4, the general full vertebral plate of cervical vertebra of the present utility model-bilateral piece bridging board, make by a long narrow metallic plate, adjacent with the first lateral mass fixing head 1 is the first vertebral plate fixing head 2, and the angle of the first lateral mass fixing head 1 and the first vertebral plate fixing head, 2 lower edge extended lines (angle A among the not shown and Fig. 3 of Fig. 3 is symmetrical arranged) is 10 °; Adjacent with the second lateral mass fixing head 6 is bone grafting fixing head 5, and the angle of the second lateral mass fixing head 6 and bone grafting fixing head 5 lower edge extended lines is 10 ° (angle A among Fig. 3); The first vertebral plate fixing head 2 is adjacent with spinous process platform fixing head 3, and angle between the two (labelling 13 of Fig. 1) on front view is 140 °; The second vertebral plate fixing head 4 is between spinous process platform fixing head 3 and bone grafting fixing head 5; And the angle of (labelling 14 of Fig. 1 and labelling 15) is 140 ° between the second vertebral plate fixing head 4 and spinous process platform fixing head 3 and the bone grafting fixing head 5, constitutes arch integral body.
All have screw fixed hole on the above-mentioned first lateral mass fixing head 1, the second lateral mass fixing head 6, spinous process platform fixing head 3, bone grafting fixing head 5, the first vertebral plate fixing head 2 and the second vertebral plate fixing head 4.
Connect metallic plate thickness of slab 1mm between above-mentioned each fixing head with the chamfering transition; Wherein the screw hole of two screw holes of first, second lateral mass fixing head (1,6) and spinous process platform fixing head 3 is circular, and the screw hole of all the other fixing heads is oval slotted hole.
First, second lateral mass fixing head (1,6) is 10 ° (Fig. 3) with the first vertebral plate fixing head 2 and the included angle A of bone grafting fixing head 5 lower edge extended lines on side view, and is consistent with the physiology inclination angle of human cervical spine lateral mass.
There are two vertically to arrange circular screw fixed hole (7,12) on the first lateral mass fixing head 1 and the second lateral mass fixing head 6.By two pieces of screw fixings in the cervical vertebral body lateral mass, bone grafting fixing head 5 passes through fixedly plant bone mass of oval long screw hole 11 by one piece of screw, the first vertebral plate fixing head 2 and the second vertebral plate fixing head 4 pass through oval long screw hole (8 by one piece of screw respectively, 10) be fixed in the cervical vertebra vertebral plate, spinous process platform fixing head 3 passes through fixedly spinous process platform of circular screw hole 9 with one piece of screw.
In the mill, the material of metallic plate is selected medical titanium alloy.The length of the first lateral mass fixing head 1 and the second lateral mass fixing head 6 is 5mm, and the length of spinous process platform fixing head 3 is 8mm, and the length of bone grafting fixing head 4 and the first vertebral plate fixing head 2 and the second vertebral plate fixing head 5 is 14mm.Certainly, the size of its each fixing head can also be adjusted according to actual needs.
Operation principle of the present utility model is, during implantation, the first lateral mass fixing head 1 by both sides and the second lateral mass fixing head 6, spinous process platform fixing head 3, bone grafting fixing head 5, the first vertebral plate fixing head 2 and the second vertebral plate fixing head 4 are respectively by screw hole fixedly cervical lateral mass, spinous process platform, plant bone mass and vertebral plate, the realization canalis spinalis enlarges the structure of open the door in the plasty side and door-hinge side to be fixed, with incorporate arch-shaped reconstruction cervical vertebra canalis spinalis, realized that the cervical vertebra canalis spinalis enlarges the physiological reconstruction and stable to greatest extent reconstruction of shaping postoperative cervical vertebra canalis spinalis simultaneously.
Claims (5)
1. the general full vertebral plate of cervical vertebra-bilateral piece bridging board is characterized in that it is made by a long narrow metallic plate, and wherein: both sides are the first lateral mass fixing head (1) and the second lateral mass fixing head (6); Adjacent with the first lateral mass fixing head (1) is the first vertebral plate fixing head (2), and the angle of the first lateral mass fixing head (1) and first vertebral plate fixing head (2) the lower edge extended line is 10 °; Adjacent with the second lateral mass fixing head (6) is bone grafting fixing head (5), and the second lateral mass fixing head (6) is 10 ° with the angle of bone grafting fixing head (5) lower edge extended line on side view; The first vertebral plate fixing head (2) is adjacent with spinous process platform fixing head (3), and angle is 140 ° between the two; The second vertebral plate fixing head (4) is positioned between spinous process platform fixing head (3) and the bone grafting fixing head (5); And the angle between the second vertebral plate fixing head (4) and spinous process platform fixing head (3) and the bone grafting fixing head (5) is respectively 140 °, constitutes arch integral body;
Described stating on the first lateral mass fixing head (1), the second lateral mass fixing head (6), spinous process platform fixing head (3), bone grafting fixing head (5), the first vertebral plate fixing head (2) and the second vertebral plate fixing head (4) all has screw fixed hole.
2. the general full vertebral plate of cervical vertebra as claimed in claim 1-bilateral piece bridging board is characterized in that the thickness of slab of described metallic plate is 1mm.
3. the general full vertebral plate of cervical vertebra as claimed in claim 1-bilateral piece bridging board is characterized in that, has two vertically to arrange circular screw fixed hole on the described first lateral mass fixing head (1) and the second lateral mass fixing head (6).
4. the general full vertebral plate of cervical vertebra as claimed in claim 1-bilateral piece bridging board, it is characterized in that, the length of the described first lateral mass fixing head (1) and the second lateral mass fixing head (6) is 5mm, the length of spinous process platform fixing head (3) is 8mm, and the length of bone grafting fixing head (5) and the first vertebral plate fixing head (2) and the second vertebral plate fixing head (4) is 14mm.
5. the general full vertebral plate of cervical vertebra as claimed in claim 1-bilateral piece bridging board, it is characterized in that the screw fixed hole on described spinous process platform fixing head (3), bone grafting fixing head (5), the first vertebral plate fixing head (2) and the second vertebral plate fixing head (4) is oval slotted hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120098708 CN202051805U (en) | 2011-04-07 | 2011-04-07 | Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120098708 CN202051805U (en) | 2011-04-07 | 2011-04-07 | Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202051805U true CN202051805U (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120098708 Expired - Lifetime CN202051805U (en) | 2011-04-07 | 2011-04-07 | Full vertebral plate-bilateral-mass centerpiece universal for cervical vertebra |
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| Country | Link |
|---|---|
| CN (1) | CN202051805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247207A (en) * | 2011-04-07 | 2011-11-23 | 雷伟 | Universal omni-posterior-double lateral mass bridging board for cervical vertebra |
| US9717541B2 (en) | 2015-04-13 | 2017-08-01 | DePuy Synthes Products, Inc. | Lamina implants and methods for spinal decompression |
-
2011
- 2011-04-07 CN CN 201120098708 patent/CN202051805U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102247207A (en) * | 2011-04-07 | 2011-11-23 | 雷伟 | Universal omni-posterior-double lateral mass bridging board for cervical vertebra |
| CN102247207B (en) * | 2011-04-07 | 2013-03-20 | 雷伟 | Universal omni-posterior-double lateral mass bridging board for cervical vertebra |
| US9717541B2 (en) | 2015-04-13 | 2017-08-01 | DePuy Synthes Products, Inc. | Lamina implants and methods for spinal decompression |
| US10342584B2 (en) | 2015-04-13 | 2019-07-09 | DePuy Synthes Products, Inc. | Lamina implants and methods for spinal decompression |
| US11116551B2 (en) | 2015-04-13 | 2021-09-14 | DePuy Synthes Products, Inc. | Lamina implants and methods for spinal decompression |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20130320 |
|
| RGAV | Abandon patent right to avoid regrant |