CN208301768U - Novel Invasive lumbar fusion device - Google Patents
Novel Invasive lumbar fusion device Download PDFInfo
- Publication number
- CN208301768U CN208301768U CN201720700690.0U CN201720700690U CN208301768U CN 208301768 U CN208301768 U CN 208301768U CN 201720700690 U CN201720700690 U CN 201720700690U CN 208301768 U CN208301768 U CN 208301768U
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- expansion block
- rod
- fusion device
- wall
- invasive lumbar
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Abstract
The utility model discloses a kind of novel Invasive lumbar fusion devices, including upper expansion block, lower expansion block and expanded height adjustment portion, upper expansion block is mounted on the top of expanded height adjustment portion, lower expansion block is mounted on the bottom of expanded height adjustment portion, upper expansion block and lower expansion block are positioned opposite, are equipped with scissors fork sliding slot thereon；Expanded height adjustment portion includes framework, screw rod regulating mechanism and scissors fork component, it is 2 that scissors, which pitches component, the shaft of the two is fixed by the connecting rod connection, connecting rod is rotatablely connected by one end of connector and screw rod regulating mechanism, one end of frame is equipped with arced terminus, the mounting hole for having in arced terminus and being connected to inside framework, the other end of screw rod regulating mechanism are installed in rotation in mounting hole；2 scissors fork components are separately mounted on the scissors fork sliding slot of expansion block and lower expansion block.The utility model has the advantages that small in size, structure is simple, adjustment height range is big and is convenient for operation.
Description
Technical field
The utility model relates to a kind of Invasive lumbar fusion device, especially a kind of novel Invasive lumbar fusion device.
Background technique
Lumbar intervertebral fusion can restore intervertebral height commonly used in the treatment illnesss such as degenerative lumbar and shakiness, expand
Intervertebral foramen supports front pillar and increases Fusion levels stability.Late 1970s have started the research of Invasive lumbar fusion device, after
The height of intervertebral can not only be restored by being used to illnesss, this treatment methods such as the change for the treatment of lumbar degenerative and lumbar instability,
Intervertebral foramen is expanded, while also enhancing the support of front pillar, increases the stability of Fusion levels.
Lumbar intervertebral fusion is needed using Invasive lumbar fusion device, and existing Invasive lumbar fusion device mostly uses cylindrical-shaped structure,
Main body is cylinder, is limited by cylindrical-shaped structure, and on the one hand its volume is larger, is on the other hand easy to appear loosening and displacement,
In addition artificial bone grafting can not be also carried out, it is poor with the syncretizing effect of lumbar vertebrae.
Utility model content
The purpose of the utility model is to provide a kind of novel Invasive lumbar fusion devices, and to solve deficiency in the prior art, it has
There is the advantages of small in size, structure is simple, adjustment height range is big and is convenient for operation.
The utility model provides a kind of novel Invasive lumbar fusion device, including upper expansion block, lower expansion block and expanded height tune
Section portion, the upper expansion block are mounted on the top of the expanded height adjustment portion, and it is high that the lower expansion block is mounted on the expansion
The bottom of adjustment portion is spent, the upper expansion block and the lower expansion block are positioned opposite, are equipped with scissors fork sliding slot thereon；The expansion
Opening height adjusting part includes framework, screw rod regulating mechanism and scissors fork component, and the scissors fork component is 2, the shaft of the two
It is fixed by the connecting rod connection, the connecting rod is rotatablely connected by one end of connector and the screw rod regulating mechanism, described
One end of framework is equipped with arced terminus, has the mounting hole being connected to inside the framework, the screw rod in the arced terminus
The other end of regulating mechanism is installed in rotation in the mounting hole；2 scissors fork components are separately mounted on described
On the scissors fork sliding slot for expanding block and the lower expansion block.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the complete phase of structure of the upper expansion block and the lower expansion block
Together, include plate body and guiding side plate, one piece of guiding side is respectively set along its 2 long sides in the plate face of the plate body side
Plate is respectively equipped with a scissors fork sliding slot, the outer walls point of 2 blocks of guiding side plates on the inner walls of 2 blocks of guiding side plates
Inner wall not with 2 long sides in the framework is slidably connected.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the scissors fork component includes idler wheel and length identical first
The middle part of the body of rod and second body of rod, first body of rod is rotatablely connected by the middle part of the shaft and second body of rod, institute
It states on the outer wall at the first body of rod both ends and the idler wheel is equipped with by the second shaft on the outer wall at second body of rod both ends；
The scissors fork sliding slot is made of roller mounting slot and shaft mounting groove, and the idler wheel is mounted in the roller mounting slot, institute
The second shaft is stated to connect across the shaft mounting groove with the idler wheel.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the plate face of the plate body is equipped with tapered protrusion and bone grafting slot, institute
The length direction that bone grafting slot is stated along the plate body arranges that the arbitrary neighborhood 2 equal spaced sets of bone grafting slot, the taper is convex
Act the region being evenly arranged on the plate body in addition to the bone grafting slot.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the vertex of a cone of the tapered protrusion is hemispherical dome structure.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the connector includes axle sleeve and connection frame, and the connection frame is
U-shaped, end are fixedly connected with the outer wall of the axle sleeve, and the two is an integral structure, and have screw rod peace on the connection frame
Hole is filled, the axle sleeve is mounted on the middle part of the connecting rod, the two interference fit；The screw rod regulating mechanism include outer tube and
Lead screw, the outer tube have internal screw thread, and one end of the lead screw is connected through a screw thread with the outer tube, and the other end is plugged on
It in the screw rod mounting hole, and is limited by nut, which is additionally provided with postive stop baffle, the postive stop baffle and the connection
The outer wall of frame abuts against, and the inner wall of the nut and the connection frame abuts against.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the outer tube is plugged on described far from one end of the screw rod
In mounting hole, the outer wall at the end is equipped with the first stop collar and the second stop collar, correspondingly, is equipped with and institute in the arced terminus
State the first limiting groove and the second limiting groove of the first stop collar and second stop collar cooperation, first limiting groove
The diameter of first stop collar and second stop collar is all larger than with the diameter of second limiting groove.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that the end of one end that the outer tube is matched with the mounting hole
Portion is equipped with interior hexagonal groove.
In novel Invasive lumbar fusion device above-mentioned, it is preferable that further include two groups of guide rods, guide rod described in two groups is respectively arranged on
The two sides of the connector；Guide rod described in every group is two, and two guide rods are arranged in parallel in the horizontal direction, respectively position
Above and below the connecting rod, the both ends of two guide rods are separately fixed at the interior of two short sides of the framework
On wall.
Compared with prior art, the utility model provides a kind of novel Invasive lumbar fusion device, integrally uses frame structure, if
Be equipped with expansion block and lower expansion block, can effectively solve the problem that by upper expansion block and lower expansion block be easy in the prior art loosening with
The shortcomings that generating displacement.This case realizes upper expansion block and lower expansion block using the cooperation of scissors fork structure and screw rod regulating mechanism
The adjusting of height, greatly simplifies product internal structure, reduces the difficulty of manufacturing process, reduces manufacturing cost, and use
The structure is convenient for operation.
By being equipped with tapered protrusion and bone grafting slot in the plate face of plate body, the stability of product on the one hand can be improved, prevent
Only its sliding loosens, and the design of another aspect bone grafting slot can be packed into a large amount of bone grafting, makes bone grafting and the sclerotin of centrum preferably
Fusion.
Detailed description of the invention
Fig. 1 is the integrally-built axonometric drawing of the utility model；
Fig. 2 is the axonometric drawing of expanded height adjustment portion；
Fig. 3 is the axonometric drawing of upper expansion block 1 and lower expansion block 2；
Fig. 4 is the cross-sectional view of upper expansion block；
Fig. 5 is the axonometric drawing of screw rod regulating mechanism and scissors fork component；
Fig. 6 is the cross-sectional view enlarged drawing of partial structurtes.
Description of symbols: expanding block on 1-, block, 3- expanded height adjustment portion are expanded under 2-, and 4- scissors pitches sliding slot, 5- frame
Body, 6- screw rod regulating mechanism, 7- scissors pitch component, 8- connecting rod, 9- connector, 10- arced terminus, 11- mounting hole, 12- plate
Body, 13- are oriented to side plate, first body of rod of 14-, second body of rod of 15-, 16- idler wheel, the second shaft of 17-, 18- roller mounting slot, 19-
Shaft mounting groove, 20- tapered protrusion, 21- bone grafting slot, 22- axle sleeve, 23- connection frame, 24- screw rod mounting hole, 25- outer tube,
26- lead screw, 27- nut, 28- postive stop baffle, the first stop collar of 29-, the second stop collar of 30-, the first limiting groove of 31-, 32-
Second limiting groove, hexagonal groove in 33-, 34- guide rod, 35- scale.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the utility model, and cannot solve
It is interpreted as limitations of the present invention.
The embodiments of the present invention: as shown in Figure 1, Figure 2 and Figure 3, a kind of novel Invasive lumbar fusion device, including upper expansion block
1, lower expansion block 2 and expanded height adjustment portion 3, upper expansion block 1 are mounted on the top of expanded height adjustment portion 3, and lower expansion block 2 is pacified
Mounted in the bottom of expanded height adjustment portion 3, upper expansion block 1 and lower expansion block 2 are positioned opposite, are equipped with scissors fork sliding slot thereon
4；Expanded height adjustment portion 3 includes that framework 5, screw rod regulating mechanism 6 and scissors pitch component 7, and it is 2 that scissors, which pitches component 7, the two
Shaft is fixedly connected by connecting rod 8, and connecting rod 8 is rotatablely connected by one end of connector 9 and screw rod regulating mechanism 6, framework 5
One end be equipped with arced terminus 10, have in arced terminus 10 and the mounting hole 11 that is connected to inside framework 5, screw rod regulating mechanism 6
The other end be installed in rotation in mounting hole 11；2 scissors fork components 7 are separately mounted to expansion block 1 and lower expansion block 2
Scissors fork sliding slot 4 on.
Specifically, it after the utility model is in place, is rotated by specific purpose tool (for the prior art, being not shown in the figure)
One end of screw rod regulating mechanism 6, the length by adjusting screw rod regulating mechanism 6 realize the adjusting to 8 position of connecting rod, work as connection
When bar 8 is to close to the movement of the direction of arced terminus 10, scissors is pitched component 7 and is opened, and makes to expand block 1 and lower expansion block 2 divides each other
From until upper expansion block 1 and lower expansion block 2 are tightly abutted with vertebra, stop rotating screw rod regulating mechanism 6.When need by
When the utility model is removed out of human body, screw rod regulating mechanism 6 only need to be rotated backward, makes connecting rod 8 to far from arced terminus 10
Direction it is mobile, shrink scissors fork component 7, then upper expansion block 1 and lower expansion block 2 can be retracted in framework 5, can will be originally
Utility model is taken out out of human body.
It is cooperated using scissors fork component 7 and screw rod regulating mechanism 6, the structure of framework 5 is greatly simplified, without setting
The separation of expansion block 1 and lower expansion block 2 and close can be realized by setting complicated moulding and type face, be effectively simplified internal junction
Structure reduces manufacture difficulty, and can reserve bigger space for bone grafting slot, can be put into more bone graftings, improve fusion
Effect.
It specifically, include plate body 12 and leading as shown in figure 3, upper expansion block 1 is identical with the lower expansion structure of block 2
To side plate 13,13,2 blocks of one block of guiding side plate guiding side plates 13 are respectively set along its 2 long sides in the plate face of 12 side of plate body
The outer wall that 4,2 blocks of sliding slot guiding side plates 13 of a scissors fork are respectively equipped on inner wall is sliding with the inner wall of 2 long sides in framework 5 respectively
Dynamic connection.In order to improve sliding precision, it is preferable that can also guiding side plate 13 on longitudinally disposed guide protrusions, in framework 5
Guide groove is set on the inner wall of long side, can be more smooth when guiding side plate 13 slides in the vertical direction in this way, prevent clamping stagnation.Plate
The plate face of body 12 is equipped with tapered protrusion 20 and bone grafting slot 21, and bone grafting slot 21 is arranged along the length direction of plate body 12, arbitrary neighborhood 2
The equal spaced set of a bone grafting slot 21, tapered protrusion 20 are evenly arranged on the region on plate body 12 in addition to bone grafting slot 21.
Since this case drives upper expansion block 1 and lower expansion block 2 to move using scissors fork component 7, the inside of framework 5
With a large amount of space, as shown in figure 3, when bone grafting slot 21 is arranged preferably, the bottom of bone grafting slot 21 can be designed
Ratio plate body 12 bottom surface it is lower, more bone graftings can be packed into this way, effectively improve syncretizing effect.Tapered protrusion in order to prevent
20 pairs of vertebras cause to damage, and this case preferably, by the vertex of a cone of tapered protrusion 20 is designed as hemispherical dome structure.
Further, as shown in figure 5, above-mentioned scissors fork component 7 includes idler wheel 16 and identical first body of rod, 14 He of length
The middle part of second body of rod 15, first body of rod 14 is rotatablely connected by the middle part of connecting shaft and second body of rod 15, first 14 liang of the body of rod
Idler wheel 16 is equipped with by the second shaft 17 on the outer wall at end and on the outer wall at second body of rod, 15 both ends；As shown in figure 4, scissors
Fork sliding slot 4 is made of roller mounting slot 18 and shaft mounting groove 19, and roller mounting slot 18 and shaft mounting groove 19 constitute a side
The "convex" shaped groove set, idler wheel 16 are mounted in roller mounting slot 18, and the second shaft 17 passes through shaft mounting groove 19 and idler wheel 16
Connection.
Further, as shown in fig. 6, above-mentioned connector 9 includes axle sleeve 22 and connection frame 23, connection frame 23 is U-shaped,
Its end is fixedly connected with the outer wall of axle sleeve 22, and the two is an integral structure, and connecting has screw rod mounting hole 24, axle sleeve on frame 23
22 are mounted on the middle part of connecting rod 8, the two interference fit；Screw rod regulating mechanism 6 includes outer tube 25 and lead screw 26, outer tube 25
With internal screw thread, one end and the outer tube 25 of lead screw 26 are connected through a screw thread, and the other end is plugged in screw rod mounting hole 24, and is led to
It crosses nut 27 to be limited, which is additionally provided with postive stop baffle 28, and postive stop baffle 28 is abutted against with the outer wall for connecting frame 23, nut
27 abut against with the inner wall for connecting frame 23.Outer tube 25 is plugged in mounting hole 11 far from one end of lead screw 26, the outer wall at the end
It is equipped with the first stop collar 29 and the second stop collar 30, correspondingly, is equipped with and the first stop collar 29 and second in arced terminus 10
The first limiting groove 31 and the second limiting groove 32 that stop collar 30 cooperates, the first limiting groove 31 and the second limiting groove 32
Diameter be all larger than the diameter of the first stop collar 29 and the second stop collar 30.One end that outer tube 25 is matched with mounting hole 11
End is equipped with interior hexagonal groove 33.
In order to improve the accuracy of 8 motion profile of connecting rod, it is preferable that as shown in Fig. 2, further include two groups of guide rods 34,
Two groups of guide rods 34 are respectively arranged on the two sides of connector 9；Every group of guide rod 34 is two, and two guide rods 34 are put down in the horizontal direction
Row setting, is located above and below connecting rod 8, it is two short to be separately fixed at framework 5 for the both ends of two guide rods 34
On the inner wall on side.
It is preferably carried out in mode in one kind, as shown in figure 3, being additionally provided with scale 35 on the outer wall of guiding side plate 13, arbitrarily
The distance between adjacent 2 graduation marks are 1mm, one number of every 5mm label, wherein 0 scale is located at one close to plate body 12
Side.Doctor can be made to can be clearly seen that plate body 12 is stretched out of expanded height adjustment portion 3 by endoscope using the design of this structure
Height out facilitates the total height of control the utility model, improves operation precision.Moreover it is preferred that outer tube for each revolution
25,1mm is raised and lowered in plate body 12.
The structure, features, and effects of the present invention is described in detail based on the embodiments shown in the drawings, with
Upper described is only the preferred embodiment of the utility model, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to
Change or equivalent example modified to equivalent change made by conception according to the utility model, still without departing from specification and figure
When showing covered spirit, it should be within the protection scope of the present utility model.
Claims (9)
1. a kind of novel Invasive lumbar fusion device, including upper expansion block (1), lower expansion block (2) and expanded height adjustment portion (3), described
Upper expansion block (1) is mounted on the top of the expanded height adjustment portion (3), and it is high that the lower expansion block (2) is mounted on the expansion
Spend the bottom of adjustment portion (3), it is characterised in that: the upper expansion block (1) and the lower expansion block (2) are positioned opposite, thereon
Sliding slot (4) are pitched equipped with scissors；The expanded height adjustment portion (3) includes framework (5), screw rod regulating mechanism (6) and scissors fork group
Part (7), scissors fork component (7) are 2, and the shaft of the two is fixedly connected by connecting rod (8), and the connecting rod (8) is logical
The one end for crossing connector (9) and the screw rod regulating mechanism (6) is rotatablely connected, and one end of the framework (5) is equipped with arced terminus
(10), the mounting hole (11) for having on the arced terminus (10) and being connected to inside the framework (5), the screw rod regulating mechanism
(6) the other end is installed in rotation in the mounting hole (11)；2 scissors forks component (7) are separately mounted to described
On scissors fork sliding slot (4) of upper expansion block (1) and lower expansion block (2).
2. novel Invasive lumbar fusion device according to claim 1, it is characterised in that: the upper expansion block (1) and the lower expansion
The structure for opening block (2) is identical, includes plate body (12) and guiding side plate (13), edge in the plate face of plate body (12) side
One piece of guiding side plate (13) is respectively set in its 2 long sides, is respectively equipped with one on the inner wall of 2 pieces of guiding side plate (13)
The scissors pitches sliding slot (4), and the outer wall of 2 pieces of guiding side plate (13) is sliding with the inner wall of upper 2 long sides of the framework (5) respectively
Dynamic connection.
3. novel Invasive lumbar fusion device according to claim 1 or 2, it is characterised in that: scissors fork component (7) includes rolling
(16) and identical first body of rod (14) of length and second body of rod (15) are taken turns, the middle part of first body of rod (14) is turned by described
The middle part of axis and second body of rod (15) is rotatablely connected, on the outer wall at first body of rod (14) both ends and second body of rod
(15) idler wheel (16) are installed by the second shaft (17) on the outer wall at both ends；Scissors fork sliding slot (4) is by idler wheel
Mounting groove (18) and shaft mounting groove (19) composition, the idler wheel (16) are mounted in the roller mounting slot (18), and described the
Two shafts (17) pass through the shaft mounting groove (19) and connect with the idler wheel (16).
4. novel Invasive lumbar fusion device according to claim 2, it is characterised in that: the plate face of the plate body (12) is equipped with cone
Shape protrusion (20) and bone grafting slot (21), the bone grafting slot (21) along the plate body (12) length direction arrangement, arbitrary neighborhood 2
The equal spaced set of the bone grafting slot (21), the tapered protrusion (20) are evenly arranged on the plate body (12) except the bone grafting slot
(21) region other than.
5. novel Invasive lumbar fusion device according to claim 4, it is characterised in that: the vertex of a cone of the tapered protrusion (20) is half
Spherical structure.
6. novel Invasive lumbar fusion device according to claim 1, it is characterised in that: the connector (9) includes axle sleeve (22)
With connection frame (23), the connection frame (23) is U-shaped, and end is fixedly connected with the outer wall of the axle sleeve (22), and the two is
Integral structure, has screw rod mounting hole (24) on the connection frame (23), and the axle sleeve (22) is mounted on the connecting rod (8)
Middle part, the two interference fit；The screw rod regulating mechanism (6) includes outer tube (25) and lead screw (26), the outer tube
(25) there is internal screw thread, one end and the outer tube (25) of the lead screw (26) are connected through a screw thread, and the other end is plugged on institute
It states in screw rod mounting hole (24), and is limited by nut (27), which is additionally provided with postive stop baffle (28), the postive stop baffle
(28) outer wall with connection frame (23) abuts against, and the inner wall of the nut (27) and connection frame (23) abuts against.
7. novel Invasive lumbar fusion device according to claim 6, it is characterised in that: the outer tube (25) is far from the lead screw
(26) one end is plugged in the mounting hole (11), and the outer wall at the end is equipped with the first stop collar (29) and the second stop collar
(30), it correspondingly, is equipped in the arced terminus (10) and matches with first stop collar (29) and second stop collar (30)
The first limiting groove (31) and the second limiting groove (32) closed, first limiting groove (31) and second limiting groove
(32) diameter is all larger than the diameter of first stop collar (29) and second stop collar (30).
8. novel Invasive lumbar fusion device according to claim 6 or 7, it is characterised in that: the outer tube (25) and the peace
The end of one end that dress hole (11) matches is equipped with interior hexagonal groove (33).
9. novel Invasive lumbar fusion device according to claim 1, it is characterised in that: it further include two groups of guide rods (34), two groups
The guide rod (34) is respectively arranged on the two sides of the connector (9)；Guide rod described in every group (34) is two, is led described in two
It is arranged in parallel, is located above and below the connecting rod (8) in the horizontal direction to bar (34), two guide rods
(34) both ends are separately fixed on the inner wall of two short sides of the framework (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720700690.0U CN208301768U (en) | 2017-06-15 | 2017-06-15 | Novel Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720700690.0U CN208301768U (en) | 2017-06-15 | 2017-06-15 | Novel Invasive lumbar fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208301768U true CN208301768U (en) | 2019-01-01 |
Family
ID=64724724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720700690.0U Active CN208301768U (en) | 2017-06-15 | 2017-06-15 | Novel Invasive lumbar fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208301768U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157629A (en) * | 2017-06-15 | 2017-09-15 | 北京安德思考普商贸有限公司 | New vertebrae mixer |
-
2017
- 2017-06-15 CN CN201720700690.0U patent/CN208301768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157629A (en) * | 2017-06-15 | 2017-09-15 | 北京安德思考普商贸有限公司 | New vertebrae mixer |
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Address after: 100000 Room 601, building 1, Jinzhuang courtyard 1, Haidian District, Beijing Patentee after: Beijing andesipu Technology Co.,Ltd. Address before: 100000 Room 601, building 1, Jinzhuang courtyard 1, Haidian District, Beijing Patentee before: BEIJING ANDESIKAOPU TRADE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |