CN208693414U - A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device - Google Patents
A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device Download PDFInfo
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- CN208693414U CN208693414U CN201820169115.7U CN201820169115U CN208693414U CN 208693414 U CN208693414 U CN 208693414U CN 201820169115 U CN201820169115 U CN 201820169115U CN 208693414 U CN208693414 U CN 208693414U
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- China
- Prior art keywords
- triangular shape
- shape connector
- font
- spondylolysis
- spondylolithesis
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Abstract
The utility model discloses a kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing devices, it includes pedicle nail and vertebral lamina hook, there are two pedicle nail is set, and it is separately mounted to the both ends of triangular shape connector, triangular shape connector two sides shoulder is symmetrically arranged with elongate slot, vertical stick and 7 font fixinig plates are symmetrically installed with above triangular shape connector, 7 font fixinig plates are pressed on vertical stick, the top of vertical stick is placed on triangular shape connector, one end of 7 font fixinig plates can be formed a fixed connection by bolt and vertical stick, in the elongate slot of the other end insertion triangular shape connector of 7 font fixinig plates, and the end is equipped with T shape card；The bottom end of two vertical sticks is installed by vertebral lamina hook respectively.The utility model can comply with vertebral lamina hook by the length using 7 font fixinig plates and vertical stick obtains best fixed-direction, effectively realizes Isthmic defect pressurization, realizes the connection of two sides inner fixing device by triangular shape connector, construct stable overall structure, it is easy to operate, it is single-segment fixation, it is minimally invasive and accurate.
Description
Technical field
The utility model relates to a kind of medical instruments, specifically a kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device.
Background technique
Isthmic defect in lumbar spine refer to one or both sides vertebral arch lower articular it is prominent between isthmus bony defect or discontinuous,
Clinical statistics data shows in low back pain that it is mostly teenager that the incidence of spondylolysis and spondylolithesis of the lumbar spine, which is 8%. patients, passes through medicine
The conservative therapys method such as object, physical therapy, some patientss can cure.And for lasting pain in the loins or have nervous lesion performance, short-term (3-6
Month) interior centrum olisthe and the obvious person of intervertebral disc degeneration, it is contemplated that operative treatment.Traditional internal fixation operation method has: 1) isthmus spiral shell
It follows closely fixation (Buck method), which requires screw accurate positioning, and operation difficulty is big, and operative failure rate is high；2) steel wire bundle method
(Scott method), the method wound is big, complicated for operation, and should not be used in 5 vertebra of waist；3) hook screw fixation, the method are that single centrum is solid
It is fixed, it is suitable for disease early stage.
The hook screw inner fixing device of the spondylolysis and spondylolithesis of the lumbar spine for operative treatment is disclosed there are also document at present, as in
State's number of patent application 201320322115.3, notification number CN203280475U, utility model are entitled " in a kind of spondylolysis
Fixed device ", Chinese Patent Application No. 200910098962.4, entitled " the spondylolysis and spondylolithesis of the lumbar spine reduction fixation system of utility model
System ", Chinese Patent Application No. 98213544.0, utility model entitled " Pediculus arcus vertebrae nail-vertebral lamina hook fixer ", Chinese patent
Application number 99240639.0, utility model entitled " a kind of memory alloy segmental internal fixator for lumbar vertebral isthmus fissure " etc., although this
A little open source literatures can solve the problems, such as some of spondylolysis and spondylolithesis of the lumbar spine, but 1) pedicle nail is had the disadvantage in that in actually using
Position be substantially it is fixed, vertebral lamina hook optimum position should be hooked in vertebral plate incisura in design, but in art vertebral lamina hook can clamping position
Not necessarily on incisura, this will lead to nail hook not on the line of imagination, can only be connected using curved rod, do not meet designed by
Biomethanics will increase vertebral lamina hook and fall off risk；2) experience reported according to more pertinent literatures, in order to avoid pedicle of vertebral arch screw
Nail influences isthmus, mostly suggest into nail position than it is conventional it is partially outer with it is more on the upper side, can not realize that very well Isthmic bone grafting adds in this way
Pressure, and cause Isthmic bone grafting unstable, influence Bone graft healing；3) current hook screw internal fixing system is that both sides individually make
With can not achieve integrated connection, be when lumbar vertebrae physiological activity there are problem, two nail hook activities are inconsistent, increase de-
Fall risk.
Utility model content
Technical problem to be solved in the utility model provides solid in easy to operate, stable connection the spondylolysis and spondylolithesis of the lumbar spine of one kind
Determine device, the inner fixation surgical instrument for spondylolysis and spondylolithesis of the lumbar spine.
The utility model solves above-mentioned technical problem with following technical solution:
A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device of the utility model, it includes pedicle nail and vertebral lamina hook, the pedicle of vertebral arch
There are two nail is set, and the both ends of triangular shape connector are separately mounted to, the two sides shoulder of triangular shape connector is symmetrically arranged with length
Shape slot is symmetrically installed with vertical stick and 7 font fixinig plates above triangular shape connector, and 7 font fixinig plates are pressed on vertical stick
On, the top of vertical stick is placed on triangular shape connector, and one end of 7 font fixinig plates is formed solid by bolt and triangular shape connector
The other end of fixed connection, 7 font fixinig plates is inserted into the elongate slot of triangular shape connector, and the end is equipped with T shape card, when slotting
After entering elongate slot and being rotated by 90 °, which is blocked by elongate slot；The bottom end of two vertical sticks is installed by vertebral lamina hook respectively.
U-shaped groove is provided at the top of vertebral lamina hook described in the utility model, vertical stick is placed in this groove, and the top of vertical stick is equipped with
Fixed vertical stick is reinforced in the lock screw two of threaded connection, the press of lock screw two.
U-shaped groove is provided at the top of pedicle nail described in the utility model, the end of triangular shape connector is placed in this groove
In, the top of pedicle nail is equipped with the lock screw one being threadedly coupled, and lock screw one presses fixed triangle shape connector.
The middle part corner of triangular shape connector described in the utility model is equipped with elastic recess, convenient for the position that fine tuning is fixed
It sets.
Attachment screw is arranged between 7 font fixinig plates and vertical stick according to surgery situation needs in the utility model.
The utility model spondylolysis and spondylolithesis of the lumbar spine inner fixing device has the following beneficial effects:
1. the utility model is fixed by three columns that the pedicle nail of two sides provides single segmental, fixed；Across spinous process
Between obtuse angle triangle body on human body almost without influence；Most of all, triangle has a reliability and stability, while by the vertebra of two sides
Nut nail and vertebral lamina hook are connected to become stable overall structure.
2. the utility model is fixed vertical stick by 7 font fixinig plates, can meet after vertebral lamina hook hooks vertebral plate, with 7 fonts
Fixinig plate goes to the direction of compliance vertebral lamina hook, maintains hook, stick, fixed point on straight line, and mechanics is stablized, and passes through this knot
The outer drift angle of vertical stick can be reduced, fall in the line of force pressurizeed after nail, stick, hook connects just on Isthmic bone grafting face, increase is melted by structure
Conjunction rate.
3. the utility model can avoid art by selecting 7 font fixinig plates of different length to be obedient to the direction of vertebral lamina hook
In adjust position or the curved rod of vertebral lamina hook repeatedly, greatly reduce operating time.
4. the utility model is equipped with elastic recess in the middle part corner of triangular shape connector, it is convenient for art mild or moderate bending tune
Whole, bending strength concentrates on indent, does not influence other positions.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model spondylolysis and spondylolithesis of the lumbar spine inner fixing device.
Fig. 2 is the schematic view of facade structure of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 2.
Fig. 4 is the stereoscopic schematic diagram of the vertebral lamina hook in Fig. 1.
Fig. 5 is the structural schematic diagram of 7 font fixinig plates in Fig. 1.
Fig. 6 is the stereoscopic schematic diagram of the pedicle nail in Fig. 1.
Fig. 7 is the stereoscopic schematic diagram of the triangular shape connector in Fig. 1.
In figure: 1-triangular shape connector, 2-pedicle nails, 3-7 font fixinig plates, 4-bolts, 5-vertical sticks, 6-vertebras
Plate hook, 7-lock screws one, 8-lock screws two, 9-attachment screws, 10-elongate slots, 11-elastic recesses, 12-T
Shape card.
Specific embodiment
The utility model will be further described with reference to the accompanying drawing:
As Figure 1-Figure 5, the utility model spondylolysis and spondylolithesis of the lumbar spine inner fixing device, including two pedicle nail 2, two
Vertebral lamina hook 6, two pedicle nails 2 are separately mounted to the both ends of triangular shape connector 1, the two sides shoulder pair of triangular shape connector 1
Title is provided with elongate slot 10, and it is solid that the top of triangular shape connector 1 is symmetrically installed with vertical 5 and 7 font fixinig plate of stick, 3,7 font
Stator 3 is pressed on vertical stick 5, and the top of vertical stick 5 is placed on triangular shape connector 1, and one end of 7 font fixinig plates 3 passes through bolt 4
It forms a fixed connection with triangular shape connector 1, the elongate slot 10 of the other end insertion triangular shape connector 1 of 7 font fixinig plates 3
In, and the end is equipped with T shape card 12, after being inserted into elongate slot 10 and being rotated by 90 °, which is blocked by elongate slot 10
Firmly, so that vertical stick 5 is fixed on triangular shape connector 1 by 7 font fixinig plates 3 with the cooperation of bolt 4, two vertebral lamina hooks 6 divide
It is not mounted on the bottom end of vertical stick 5.
As shown in figure 3, the top of pedicle nail 2 is provided with U-shaped groove, the end of triangular shape connector 1 is placed in this U-shaped groove
In, the top of pedicle nail 2 is equipped with the lock screw 1 being threadedly coupled, and presses the connection of fixed triangle shape by lock screw 1
Body 1 makes it form a fixed connection with triangular shape connector 1.
As shown in figure 4, the top of vertebral lamina hook 6 is provided with U-shaped groove, vertical stick 5 is placed in this U-shaped groove, and the top of vertical stick 5 is set
There is the lock screw 28 of threaded connection, the fixed vertical stick 5 of the press of lock screw 28 makes it form a fixed connection with vertical stick 5.
For the ease of finely tuning the fixation position of vertebral lamina hook 6 during surgery, it is equipped in the middle part corner of triangular shape connector 1
Elastic recess 11.
According to the needs of surgery situation, by attachment screw 9 and can also be formed between the vertical font of stick 5 and 7 fixinig plate 3
It is fixedly connected.
The utility model spondylolysis and spondylolithesis of the lumbar spine inner fixing device is made of medical titanium alloy.
When carrying out spondylolysis and spondylolithesis of the lumbar spine operation using the utility model spondylolysis and spondylolithesis of the lumbar spine inner fixing device, in the course of surgery,
After Isthmic defect is repaired bone grafting, it is placed in two sides pedicle nail 2, triangular shape connector 1 is fixed by lock screw 1 in two sides to be connected
It connects；Then by 6 clamping vertebral plate of vertebral lamina hook, vertical stick 5 is placed in the groove at the top of vertebral lamina hook, the direction of suitable vertical stick 5 is in triangular shape
T shape card 12, is inserted into the elongate slot 10 of triangular shape connector 1 by the 7 font fixinig plates 3 that suitable dimension is selected on connector 1
And after being rotated by 90 °, vertical 5 top of stick is placed under 7 shape fixinig plates 3, the fixed vertical stick 5 of press is screwed down by bolt 4.
Can be as needed in operation, 7 font fixinig plates 3 are threadedly coupled with vertical stick 5 using attachment screw 9, to add
It is fixedly connected by force.
Claims (5)
1. a kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device, including pedicle nail (2) and vertebral lamina hook (6), which is characterized in that the vertebral arch
There are two root nail (2) is set, and the both ends of triangular shape connector (1) are separately mounted to, the two sides shoulder pair of triangular shape connector (1)
Title is provided with elongate slot (10), and vertical stick (5) and 7 font fixinig plates are symmetrically installed with above triangular shape connector (1)
(3), 7 font fixinig plates (3) are pressed on vertical stick (5), and the top of vertical stick (5) is placed on triangular shape connector (1), and 7 fonts are solid
One end of stator (3) is formed a fixed connection by bolt (4) with triangular shape connector (1), the other end of 7 font fixinig plates (3)
It is inserted into the elongate slot (10) of triangular shape connector (1), and the end is equipped with T shape card (12), when insertion elongate slot (10)
And after being rotated by 90 °, which is blocked by elongate slot (10)；The bottom end of two vertical sticks (5) is installed by vertebral lamina hook respectively
(6)。
2. spondylolysis and spondylolithesis of the lumbar spine inner fixing device according to claim 1, which is characterized in that opened at the top of the vertebral lamina hook (6)
There is U-shaped groove, vertical stick (5) are placed in this groove, and the top for indulging stick (5) is equipped with the lock screw two (8) being threadedly coupled, locking screw
Fixed vertical stick (5) are reinforced in the press of two (8) of silk.
3. spondylolysis and spondylolithesis of the lumbar spine inner fixing device according to claim 1, which is characterized in that the top of the pedicle nail (2)
It is provided with U-shaped groove, the end of triangular shape connector (1) is placed in this groove, and the top of pedicle nail (2) is equipped with threaded connection
Lock screw one (7), lock screw one (7) press fixed triangle shape connector (1).
4. spondylolysis and spondylolithesis of the lumbar spine inner fixing device according to claim 1, which is characterized in that the triangular shape connector (1)
Middle part corner is equipped with elastic recess (11), convenient for the position that fine tuning is fixed.
5. spondylolysis and spondylolithesis of the lumbar spine inner fixing device according to claim 1, which is characterized in that according to surgery situation needs, in 7 words
Attachment screw (9) are set between shape fixinig plate (3) and vertical stick (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820169115.7U CN208693414U (en) | 2018-01-31 | 2018-01-31 | A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820169115.7U CN208693414U (en) | 2018-01-31 | 2018-01-31 | A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208693414U true CN208693414U (en) | 2019-04-05 |
Family
ID=65911907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820169115.7U Withdrawn - After Issue CN208693414U (en) | 2018-01-31 | 2018-01-31 | A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208693414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108125711A (en) * | 2018-01-31 | 2018-06-08 | 梧州市红十字会医院 | A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device |
| CN115227366A (en) * | 2022-06-15 | 2022-10-25 | 江苏爱护佳健康科技有限公司 | Internal fixator for rebuilding lumbar isthmus for orthopedics |
-
2018
- 2018-01-31 CN CN201820169115.7U patent/CN208693414U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108125711A (en) * | 2018-01-31 | 2018-06-08 | 梧州市红十字会医院 | A kind of spondylolysis and spondylolithesis of the lumbar spine inner fixing device |
| CN108125711B (en) * | 2018-01-31 | 2023-07-25 | 梧州市红十字会医院 | Lumbar vertebra isthmus split internal fixation device |
| CN115227366A (en) * | 2022-06-15 | 2022-10-25 | 江苏爱护佳健康科技有限公司 | Internal fixator for rebuilding lumbar isthmus for orthopedics |
| CN115227366B (en) * | 2022-06-15 | 2023-09-01 | 江苏爱护佳健康科技有限公司 | Lumbar isthmus reconstruction internal fixator for orthopaedics |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20230725 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190405 Effective date of abandoning: 20230725 |