CN206659970U - Invasive lumbar fusion device - Google Patents
Invasive lumbar fusion device Download PDFInfo
- Publication number
- CN206659970U CN206659970U CN201621432940.9U CN201621432940U CN206659970U CN 206659970 U CN206659970 U CN 206659970U CN 201621432940 U CN201621432940 U CN 201621432940U CN 206659970 U CN206659970 U CN 206659970U
- Authority
- CN
- China
- Prior art keywords
- fusion device
- limiting plate
- wall
- article putting
- invasive lumbar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses Invasive lumbar fusion device,Including fusion device housing,Limiting plate and regulating block,The fusion device housing includes two horizontally disposed portable plates,The portable plate is wedge structure,The article putting groove of structure identical first is equipped with the outer wall that two portable plates are oppositely arranged,The inwall that first glove is oppositely arranged is provided with the limiting plate mounting groove of rectangle,In the limiting plate mounting groove limiting plate is slidably connected on vertical direction,The limiting plate includes two limited blocks being vertically arranged,The structure of two limited blocks is identical,And it is equipped with semicircular second article putting groove on the outer wall that is oppositely arranged of two limited blocks,The inwall of second article putting groove is provided with internal thread,The internal whorl of two the second article putting grooves is connected with regulating block,The regulating block includes head,Bar portion and afterbody,The tapered structure in head,The outer wall of the bar portion is provided with external screw thread.The utility model is simple to operate, the characteristics of more meeting Intervertebral space, and therapeutic effect is good.
Description
Technical field
It the utility model is related to technical field of medical instruments, more particularly to a kind of Invasive lumbar fusion device.
Background technology
Waist posterior decompression bone grafting is considered as the goldstandard art formula of lumbar instability, and be widely used treatment lumbar spinal stenosis
The illness such as disease, lumbar spondylolisthesis, the protrasion of the lumbar intervertebral disci, lumbar instability, lumbar vertebrae deformity.But with operation case accumulation and
Social astogeny accelerates, and the complication of long-term follow-up substantially increases in interbody fusion, and as intervertebral bone graft does not merge, fusion device moves
Position (particularly rearward displacement compressing dural sac and nerve root), upper lower edge cartilage endplate destroys fusion device and sunk, and intervertenral space collapses
Fall into.These complication one of those more general character the reason for, be implanted into the design defect of the fusion device of intervertebral.
Invasive lumbar fusion device under prior art is mostly long cube shaped frame, hollow, surrounding perforate, internal cestode bone bits, is put down
It is put in intervertenral space.The soleplate up and down of lower lumbar spine intervertenral space is not parallel under physiological status, and it is parallel to add intervertenral space, then
Lumbar vertebrae will lose normal physiological bending and radian, the normal hemad angulation 6-10 degree of upper and lower cartilage endplate, Fang Nengwei
It is normal lumbar vertebrae physiological bending, so the parallel Invasive lumbar fusion device and upper and lower cartilage endplate for using at present and misfit,
The contact surface of fusion device and cartilage endplate is limited, has had a strong impact on intervertebral fusion rate, intervertebral do not merge can cause low back pain or
Lumbar vertebrae Secondary cases is unstable, fixation failure etc., even needs to carry out revision procedure treatment when serious.This patient patient brings discontented
The effect of meaning, increase the rehabilitation duration and medical expense of patient.
Utility model content
The purpose of this utility model is firm in order to solve Invasive lumbar fusion device connecting portion present in prior art, and stress is not
The shortcomings that uniform, and a kind of Invasive lumbar fusion device proposed.
To achieve these goals, the utility model employs following technical scheme：
Invasive lumbar fusion device, including fusion device housing, limiting plate and regulating block, the fusion device housing are set including two levels
The portable plate put, the portable plate are wedge structure, and structure identical is equipped with the outer wall that two portable plates are oppositely arranged
First article putting groove, the inwall that first glove is oppositely arranged are provided with the limiting plate mounting groove of rectangle, the limiting plate installation
Limiting plate is slidably connected in groove on vertical direction, the limiting plate includes two limited blocks being vertically arranged, two limited blocks
Structure it is identical, and be equipped with semicircular second article putting groove, second glove on the outer wall that is oppositely arranged of two limited blocks
The inwall of groove is provided with internal thread, and the internal whorls of two the second article putting grooves is connected with regulating block, the regulating block include head,
Bar portion and afterbody, the tapered structure in head, the outer wall of the bar portion are provided with external screw thread, the external screw thread and internal thread phase
Matching, the afterbody is in flattened conical type structure, and a side wall of the afterbody away from head is provided with adjusting grooves, the head
Outer wall and the outer wall of afterbody be slidably connected to respectively on the inside of two the first article putting grooves.
Preferably, the limiting plate is rectangular parallelepiped structure, and two limited blocks are completely embedded into limiting plate mounting groove, and spacing
The height of block is equal to two limiting plates and installs groove height sum.
Preferably, the length of first article putting groove is less than the length of portable plate.
Preferably, the vertical section of the adjusting grooves is yi word pattern, cross or regular hexagon.
Preferably, the portable plate, limited block and regulating block are made by metal material.
Preferably, the outer wall that the portable plate is vertically arranged is provided with middle cavity, and the hollow intracavitary is provided with fluorescent paint.
Preferably, the afterbody is provided with the graduation mark of annular close to the side outer wall of adjusting grooves, and the afterbody is remote
One side wall on head is provided with cross index line, and the index line is adapted with graduation mark.
Preferably, the regulating block is formed in one structure.
In the utility model, two activities can be made by the design regulating block of movable block, limited block and regulating block
The increase of the distance between block, is adjusted, can fully be bonded intervertebral space, consolidate the connection of centrum, fusion is filled as needed
Point, it is easy to regulating block to adjust by the design of adjusting grooves, doctor is made to two activities by the design of graduation mark and index line
The distance between block has more accurate understanding, simple to operate, is connected firmly, and therapeutic effect is good.
Brief description of the drawings
Fig. 1 be the utility model proposes Invasive lumbar fusion device first structure schematic diagram；
Fig. 2 be the utility model proposes Invasive lumbar fusion device the second structural representation；
Fig. 3 be the utility model proposes Invasive lumbar fusion device portable plate structural representation；
Fig. 4 be the utility model proposes Invasive lumbar fusion device limited block structural representation；
Fig. 5 be the utility model proposes Invasive lumbar fusion device regulating block structural representation.
In figure：1 portable plate, 2 limited blocks, 3 regulating blocks, 4 limiting plate mounting grooves, 5 second article putting grooves, 6 heads, 7 bar portions, 8
Afterbody, 9 adjusting grooves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1-5, Invasive lumbar fusion device, including fusion device housing, limiting plate and regulating block 3, fusion device housing include two
Individual horizontally disposed portable plate 1, portable plate 1 are wedge structure, and structure is equipped with the outer wall that two portable plates 1 are oppositely arranged
The article putting groove of identical first, the inwall that the first glove is oppositely arranged are provided with the limiting plate mounting groove 4 of rectangle, limiting plate mounting groove
Limiting plate is slidably connected in 4 on vertical direction, limiting plate includes two limited blocks 2 being vertically arranged, the knot of two limited blocks 2
Structure is identical, and semicircular second article putting groove 5 is equipped with the outer wall that is oppositely arranged of two limited blocks 2, the second article putting groove 5 it is interior
Wall is provided with internal thread, and the internal whorl of two the second article putting grooves 5 is connected with regulating block 3, and regulating block 3 includes head 6, bar portion 7
With afterbody 8,6 tapered structure of head, the outer wall of bar portion 7 is provided with external screw thread, and external screw thread matches with internal thread, afterbody 8
In flattened conical type structure, and a side wall of the afterbody 8 away from head 6 is provided with adjusting grooves 9, outer wall and the afterbody 8 on head 6
Outer wall is slidably connected on the inside of two the first article putting grooves respectively, is made by the design of movable block 1, limited block 2 and regulating block 3
The increase of the distance between two movable blocks 1 can be made by obtaining regulating block 3, be adjusted as needed, can be fully bonded intervertebral space,
Consolidate the connection of centrum, fusion is abundant, and limiting plate is rectangular parallelepiped structure, and two limited blocks 2 are completely embedded into limiting plate mounting groove 4
It is interior, and the height of limited block 2 is equal to two height sums of limiting plate mounting groove 4, the length of the first article putting groove is less than portable plate 1
Length, the vertical sections of adjusting grooves 9 is yi word pattern, cross or regular hexagon, portable plate 1, limited block 2 and regulating block 3 by
Metal material is made, and the outer wall that portable plate 1 is vertically arranged is provided with middle cavity, and hollow intracavitary is provided with fluorescent paint, and afterbody 8 is close
The side outer wall of adjusting grooves 9 is provided with the graduation mark of annular, and a side wall of the afterbody 8 away from head 6 is provided with cross finger
Timberline, index line are adapted with graduation mark, and regulating block 3 is formed in one structure, is easy to regulating block by the design of adjusting grooves 9
3 regulations, make doctor have more accurate understanding to the distance between two movable blocks 1 by the design of graduation mark and index line, first
Fusion device housing is placed in the corresponding intervertenral space of patient, regulating block 3 is adjusted, rotates regulating block 3, so as to which regulating block 3 is with living
Occur first the lowest point displacement between motion block 1, towards moving in the first article putting groove, head 6 removes afterbody 8 out of first article putting groove so that
Gap increase between two movable blocks 1, by the prompting of graduation mark, adjusts adjusting grooves 9, under the instruction of index line, makes
Regulation it is more accurate, it is simple to operate.
In the utility model, first fusion device housing is placed in the corresponding intervertenral space of patient, regulating block 3 is adjusted, makes regulation
Block 3 rotates, and so as to occur first the lowest point displacement between regulating block 3 and movable block 1, afterbody 8 is towards moving in the first article putting groove, head 6
Removed out of first article putting groove so that the gap increase between two movable blocks 1, it is recessed by the prompting of graduation mark, regulation regulation
Groove 9, under the instruction of index line, the regulation made is more accurate.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (8)
1. Invasive lumbar fusion device, including fusion device housing, limiting plate and regulating block (3), it is characterised in that the fusion device housing bag
Two horizontally disposed portable plates (1) are included, the portable plate (1) is wedge structure, and two portable plates (1) are oppositely arranged outer
The article putting groove of structure identical first is equipped with wall, the limiting plate that the inwall that first glove is oppositely arranged is provided with rectangle is pacified
Tankage (4), slidably connects limiting plate on the interior vertical direction of the limiting plate mounting groove (4), the limiting plate include two it is perpendicular
The limited block (2) directly set, the structure of two limited blocks (2) is identical, and is all provided with the outer wall that is oppositely arranged of two limited blocks (2)
There is semicircular second article putting groove (5), the inwall of second article putting groove (5) is provided with internal thread, two the second article putting grooves (5)
Internal whorl be connected with regulating block (3), the regulating block (3) includes head (6), bar portion (7) and afterbody (8), the head
(6) tapered structure, the outer wall of the bar portion (7) are provided with external screw thread, and the external screw thread matches with internal thread, the afterbody
(8) be in flattened conical type structure, and a side wall of the afterbody (8) away from head (6) is provided with adjusting grooves (9), the head
(6) outer wall of outer wall and afterbody (8) is slidably connected on the inside of two the first article putting grooves respectively.
2. Invasive lumbar fusion device according to claim 1, it is characterised in that the limiting plate is rectangular parallelepiped structure, and two limit
Position block (2) is completely embedded into limiting plate mounting groove (4), and the height of limited block (2) is equal to two limiting plate mounting groove (4) height
Sum.
3. Invasive lumbar fusion device according to claim 1, it is characterised in that the length of first article putting groove is less than portable plate
(1) length.
4. Invasive lumbar fusion device according to claim 1, it is characterised in that the vertical section of the adjusting grooves (9) is a word
Type, cross or regular hexagon.
5. Invasive lumbar fusion device according to claim 1, it is characterised in that the portable plate (1), limited block (2) and regulation
Block (3) is made by metal material.
6. Invasive lumbar fusion device according to claim 1, it is characterised in that on the outer wall that the portable plate (1) is vertically arranged
Provided with middle cavity, the hollow intracavitary is provided with fluorescent paint.
7. Invasive lumbar fusion device according to claim 1, it is characterised in that the one of the close adjusting grooves (9) of the afterbody (8)
Side outer wall is provided with the graduation mark of annular, and a side wall of the afterbody (8) away from head (6) is provided with cross index line,
The index line is adapted with graduation mark.
8. Invasive lumbar fusion device according to claim 1, it is characterised in that the regulating block (3) is formed in one structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432940.9U CN206659970U (en) | 2016-12-26 | 2016-12-26 | Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432940.9U CN206659970U (en) | 2016-12-26 | 2016-12-26 | Invasive lumbar fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206659970U true CN206659970U (en) | 2017-11-24 |
Family
ID=60356858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432940.9U Expired - Fee Related CN206659970U (en) | 2016-12-26 | 2016-12-26 | Invasive lumbar fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206659970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI736010B (en) * | 2019-11-08 | 2021-08-11 | 財團法人工業技術研究院 | Spinal intervertebral body fusion device |
-
2016
- 2016-12-26 CN CN201621432940.9U patent/CN206659970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI736010B (en) * | 2019-11-08 | 2021-08-11 | 財團法人工業技術研究院 | Spinal intervertebral body fusion device |
| US11819420B2 (en) | 2019-11-08 | 2023-11-21 | Industrial Technology Research Institute | Spinal intervertebral body fusion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20191226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |