CN105982725B - The non-fused inner fixing device of backbone - Google Patents
The non-fused inner fixing device of backbone Download PDFInfo
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- CN105982725B CN105982725B CN201510076995.4A CN201510076995A CN105982725B CN 105982725 B CN105982725 B CN 105982725B CN 201510076995 A CN201510076995 A CN 201510076995A CN 105982725 B CN105982725 B CN 105982725B
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- cabinet
- turbine
- backbone
- fixing device
- worm screw
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Abstract
The present invention proposes a kind of non-fused inner fixing device of backbone, including cabinet, turbine, worm screw, two extension bolts and two extension adjusting rods；Turbine is set in cabinet and has two sides；Worm screw is set in cabinet and transmission is matched with turbine；Two extend the center that bolt is individually fixed in turbine two sides, and it is coaxial with turbine to extend bolt；Extend in adjusting rod and offer screw hole, to be threadedly engaged in extending on bolt, the hand of spiral in the screw hole of two extension adjusting rods is opposite.When using spinal fixation system of the non-fused inner fixing device of backbone proposed by the present invention as scoliosis surgery, when the subsequent adjusting extends adjusting rod, in convenient and safe outpatient service local anaesthesia and small incision surgery can not only be imposed, directly strut the backbone of lateral bending, to meet the postoperative growth needs of scoliosis patient, the fusion complication of various serious teenage backbones is reduced.
Description
Technical field
It is non-fused interior that the present invention relates to the field of medical instrument technology more particularly to a kind of backbone for treating scoliosis
Fixed device.
Background technique
Currently, the operation for existing treatment scoliosis, the especially backbone of teenager and children carry out orthopedic and interior
When fixation, fusion, internal fixation device to be used is needed to maintain the effect of surgical orthopaedic, increases spinal bone fusion rate.But
Because teenager and children are when backbone not yet grows full maturity, spinal fusion often results in many severe complications, such as bent
Axis phenomenon, backbone cripetura, lateral bending exacerbation or chest deformity etc..To reduce the complication of spinal fusion, while maintaining scoliosis
Orthopedic effect, extended internal fixation device can be increased by needing to design one kind.
At present to the extended method of internal fixation of spine stick, often need to cut 5cm at patient back periodically and repeatedly left
Right operative incision is loosened the eye bolt of such as domino connector, while passively being strutted in two admittedly using instruments such as distraction forceps
Determine stick.This method needs patient to perform the operation repeatedly, and multiple general anesthesia, removes repeatedly and exposure domino connector and interior solid
Determine a part of stick, then the growth strutted to maintain backbone, does not cause singly patient by the pain of Repeated Operation, can also give
Patient home brings huge financial burden.
Therefore it provides a kind of bone inner fixing device for treating scoliosis, so as to when being directed to adolescent patient, substantially
The cost and difficulty of subsequent procedures are reduced, while mitigating the pain of patient's Repeated Operation, it has also become is in the art urgently to be resolved
One big technical problem.
Summary of the invention
The invention solves the technical problems of the surgical procedure complexity in the prior art for extending internal fixation of spine stick.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The present invention proposes a kind of non-fused inner fixing device of backbone, wherein including cabinet, turbine, worm screw, two extension spiral shells
Bolt and two extension adjusting rods；The turbine is set in the cabinet and has two sides；The worm screw is set to the cabinet
Interior and transmission is matched with the turbine；Described two extend the center that bolt is individually fixed in the turbine two sides, and
The extension bolt is coaxial with the turbine；Screw hole is offered in the extension adjusting rod, to be threadedly engaged in the extension
On bolt, the hand of spiral in the screw hole of two extension adjusting rods is opposite.
According to an embodiment of the present invention, the cabinet is opened up there are two the first opening, to respectively for described two
Extend bolt to pass through.
It further include two first flange disks according to another embodiment, to close off described two first openings, institute
It states and offers aperture in the middle part of first flange disk, passed through with for the extension bolt.
According to another embodiment, the cabinet offers at least one second opening, with for the worm screw both ends
In at least one end be exposed to the cabinet.
According to another embodiment, the worm screw, which is exposed on the end of the cabinet, offers interior corner apertures, the interior angle
Centerline hole is overlapped with the worm screw center line.
According to another embodiment, the non-fused inner fixing device of backbone further includes at least one second flange disk, is used
To seal second opening, and the worm end for offering the interior corner apertures exposes.
According to another embodiment, the cabinet is opened up there are two the second opening, to respectively for the both ends of the worm screw
Portion is exposed to the cabinet.
According to another embodiment, the worm screw offers interior angle through-hole, the interior angle through hole center line and the worm screw
Center line is overlapped.
According to another embodiment, the turbine is engaged with the worm screw in 90 ° of alternate angles.
According to another embodiment, the extension adjusting rod includes adjusting screwed pipe portion and extension bar portion；The adjusting spiral shell
Pipe portion is in a tubular form and inside offers the screw hole；The extension rod portion is located at one of the adjusting screwed pipe portion far from the cabinet
End, to be fixed with backbone.
As shown from the above technical solution, the beneficial effects of the present invention are: when using backbone proposed by the present invention it is non-fused
It, can be convenient when which extends adjusting rod when spinal fixation system of the inner fixing device as scoliosis surgery
The outpatient service local anaesthesia of safety simultaneously imposes small incision surgery, struts the backbone of lateral bending, directly to meet the art of scoliosis patient
Growth needs afterwards, reduces the fusion complication of various serious teenage backbones.
Detailed description of the invention
Fig. 1 is the schematic perspective view of non-fused one embodiment of inner fixing device of backbone proposed by the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the schematic cross-sectional view made by A-A straight line along Fig. 1；
Fig. 4 is the schematic cross-sectional view made by B-B straight line along Fig. 1.
Wherein, appended drawing reference is as follows:
1. cabinet；2. turbine；3. worm screw；31. interior angle through-hole；4. extending bolt；5. extending adjusting rod；51. adjusting screwed pipe
Portion；52. extending bar portion；6. first flange disk；7. second flange disk.
Specific embodiment
The exemplary embodiments for embodying feature of present invention and advantage will describe in detail in the following description.It should be understood that this
Invention can have various variations in different embodiments, neither depart from the scope of the present invention, and it is therein explanation and
Diagram is inherently illustrative, rather than to limit the present invention.
As shown in Figure 1, an embodiment of the non-fused inner fixing device of backbone proposed by the present invention, in present embodiment
In, the non-fused inner fixing device of the backbone mainly includes cabinet 1, turbine 2,3, two extension bolts 4 of worm screw and two extensions
Adjusting rod 5.
As depicted in figs. 1 and 2, in the present embodiment, the length size of cabinet 1 is preferably 2cm~3cm, so
And in other embodiments, the shape and size of cabinet 1 can be adjusted flexibly according to the actual needs of operation, not with this
It is limited.Cabinet 1 is opened up there are two the first opening, to supply two extension bolts 4 to pass through respectively.Also, two openings of cabinet 1
It is closed respectively by a first flange disk 6, and offers the aperture passed through for extending bolt 4 in the middle part of first flange disk 6.By upper
State first flange disk 6 structure design, can to avoid occur in post operative recovery procedures the tissue such as soft tissue grow into
The problem of entering cabinet 1.
As shown in Figure 3 and Figure 4, in the present embodiment, turbine 2 is set in cabinet 1 and has two sides, and worm screw 3 is set to
In cabinet 1 and transmission is matched with turbine 2.Specifically, turbine 2 is engaged with worm screw 3 in 90 ° of alternate angles.Also, cabinet 1 opens up
There are two the second openings, so that the both ends of worm screw 3 are exposed to cabinet 1.The central location of worm screw 3 offers interior angle through-hole 31,
I.e. 31 center line of interior angle through-hole is overlapped with the center line of worm screw 3.In order to further avoid in post operative recovery procedures, occur for example
The tissues such as soft tissue grow into the problem of cabinet 1, are additionally provided with second flange disk 7, second flange disk 7 in the second opening
The gap between 3 end of worm screw and the second opening can be closed, and 3 end of worm screw with interior angle through-hole 31 can be made by second flange
Aperture among disk 7 is exposed.It should be noted that the design that interior hexagonal through-hole is opened up in worm screw 3 is used in present embodiment,
Above structure can utilize the hexagon screwdriver being adapted to the interior angle through-hole 31 during surgery, be inserted into the worm screw 3, single direction rotation
Hexagon screwdriver hand shank drives turbine 2 to rotate with rotary worm 3.In addition, in other embodiments, cabinet 1 also can be opened up only
One second opening, so that the wherein one end of worm screw 3 is exposed to cabinet 1, then should replace the interior angle through-hole 31 opened up in worm screw 3
It is changed to interior corner apertures, is not limited thereto.It should be noted that the hand of spiral between worm screw 3 and turbine 2 be unanimously it is best,
So that vibration, impact and noise that worm screw 3 is driven minimize, and keep the working condition of the non-fused inner fixing device of backbone flat
Surely, it can be driven with monopole and obtain biggish transmission ratio.It is compact-sized between worm gear and worm screw 3, it can be for example, by self-locking anti-
It only retreats, it will not be described here.Worm screw 3 and turbine 2 are mounted in cabinet 1 in advance completely in operation consent, and are fixed on cabinet 1,
While meeting rotation function, avoid shaking.
As shown in figure 3, in the present embodiment, two extend the centre bit that bolt 4 is individually fixed in 2 two sides of turbine
It sets, and it is coaxial with turbine 2 to extend bolt 4.Extend adjusting rod 5 in offer screw hole, to be threadedly engaged in extend bolt 4 on,
And the hand of spiral in the screw hole of two extension adjusting rods 5 is opposite.Specifically, in the present embodiment, extend adjusting rod 5 to wrap
It includes and adjusts screwed pipe portion 51 and extend bar portion 52, wherein adjusting screwed pipe portion 51 in a tubular form and offering spiral shell at internal close turbine 2
Hole extends bar portion 52 and is located at the adjusting one end of screwed pipe portion 51 far from cabinet 1.In addition, the diameter of the extension adjusting rod 5 is preferably
3.5mm~6mm, the length of the extension adjusting rod 5 is preferably 20cm~40cm, opposite, and the length for extending bolt 4 is preferable
5cm or so, and diameter adapts to extend the screw hole aperture in the adjusting screwed pipe portion 51 of adjusting rod 5, to adapt to the patient of all ages and classes
Use.Also, the material of the extension adjusting rod 5 is preferably medical titanium alloy, is not limited thereto.In addition, the extension is adjusted
Bar 5 is nailed on to be mounted on the pedicle of vertebral arch screw of adaptation, and the non-fused inner fixing device of the backbone is fixed on backbone, and is having
When gymnastics is made, available such as disconnected stick device is cut short or curved rod device bending certain angle, to be adapted to backbone natural form.
The non-fused inner fixing device of backbone proposed by the present invention adjusts the basic principle of extension rod are as follows: worm screw 3 and turbine 2 are pacified
In cabinet 1, when rotary worm 3, worm screw 3 drives turbine 2 to rotate, that is, drives two that are fixed on 2 two sides of turbine and prolong
Stay bolt 4 rotates.Simultaneously as the extension bar portion 52 for extending adjusting rod 5 is fixed on backbone in initial surgery, that is, extends and adjust
Pole 5 extends bolt 4 relative to the extension rotation of adjusting rod 5 relative in stationary state.Also, due to two extension adjusting rods
5 adjusting screwed pipe portion 51 hand of spiral on the contrary, then two extension 4 rotating Vortexes of bolt when, two extension adjusting rods 5 are in screw thread
It is opposite in opposite direction or opposite mobile under the drive of driving force.Because the fixation device is for adapting to such as adolescent patient body
The spinal growth of development and generation, therefore only need to make worm screw 3 into one-way movement, that is, correspond to two 5 phase backward shifts of extension adjusting rod
The adaptability adjusting to spinal growth can be realized in dynamic direction of rotation.
Though exemplary embodiment describes the non-fused inner fixing devices of backbone of the invention with reference to several, it should be appreciated that institute
Term be it is illustrative and exemplary, and not restrictive.Since the present invention can be embodied in a variety of forms without de-
From its conception or substance, therefore, above-described embodiment is not limited to any of the foregoing details, and should be defined by the appended claims
It is widely explained in conception and scope, therefore the whole change and modification fallen into claim or its equivalent scope all should be accompanying
Claim is covered.
Claims (8)
1. a kind of non-fused inner fixing device of backbone characterized by comprising
Cabinet (1)；
Turbine (2) is set in the cabinet (1) and has two sides；
Worm screw (3), is set in the cabinet (1) and transmission is matched with the turbine (2), and the cabinet (1) offers at least one
A second opening, is exposed to the cabinet (1) with for at least one end in the worm screw (3) both ends；
Two extension bolts (4), are individually fixed in the center of the turbine (2) two sides, and the extension bolt (4) with
The turbine (2) is coaxial；And
Two extension adjusting rods (5) offer screw hole at the turbine (2) in the extension adjusting rod (5), to screw thread
It is matched on the extension bolt (4), the hand of spiral in the screw hole of two extension adjusting rods (5) is on the contrary, the extension
Adjusting rod (5) includes:
It adjusts screwed pipe portion (51), in a tubular form and inside offers the screw hole；And
Extend bar portion (52), is located at the described one end of adjusting screwed pipe portion (51) far from the cabinet (1), to fix with backbone；
Wherein, the hand of spiral between the worm screw and the turbine is consistent.
2. the non-fused inner fixing device of backbone according to claim 1, which is characterized in that the cabinet (1) offers two
A first opening, to be passed through respectively for two extension bolts (4).
3. the non-fused inner fixing device of backbone according to claim 2, which is characterized in that further include two first flange disks
(6), to close off described two first openings, aperture is offered in the middle part of the first flange disk (6), is prolonged with for described
Stay bolt (4) passes through.
4. the non-fused inner fixing device of backbone according to claim 1, which is characterized in that the worm screw (3) is exposed to institute
It states and offers interior corner apertures on the end of cabinet (1), the interior angle centerline hole is overlapped with the worm screw (3) center line.
5. the non-fused inner fixing device of backbone according to claim 4, which is characterized in that the non-fused interior fixation of backbone
Device further includes at least one second flange disk (7), to seal second opening, and the snail for offering the interior corner apertures
Expose bar (3) end.
6. the non-fused inner fixing device of backbone according to claim 1, which is characterized in that the cabinet (1) offers two
A second opening, to supply the both ends of the worm screw (3) to be exposed to the cabinet (1) respectively.
7. the non-fused inner fixing device of backbone according to claim 6, which is characterized in that in the worm screw (3) offers
Angle through-hole (31), interior angle through-hole (31) center line are overlapped with the worm screw (3) center line.
8. the non-fused inner fixing device of backbone according to claim 1, which is characterized in that the turbine (2) and the snail
Bar (3) is in 90 ° of alternate angle engagements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076995.4A CN105982725B (en) | 2015-02-12 | 2015-02-12 | The non-fused inner fixing device of backbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510076995.4A CN105982725B (en) | 2015-02-12 | 2015-02-12 | The non-fused inner fixing device of backbone |
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| Publication Number | Publication Date |
|---|---|
| CN105982725A CN105982725A (en) | 2016-10-05 |
| CN105982725B true CN105982725B (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510076995.4A Active CN105982725B (en) | 2015-02-12 | 2015-02-12 | The non-fused inner fixing device of backbone |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106859754A (en) * | 2017-03-22 | 2017-06-20 | 拾欣 | KAFO is fixed in a kind of growth period scoliosis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686055A (en) * | 2005-06-10 | 2005-10-26 | 王岩 | Rachiocampis correction device |
| WO2009100459A1 (en) * | 2008-02-08 | 2009-08-13 | Texas Scottish Rite Hospital For Children | External fixation strut |
| CN202020523U (en) * | 2011-04-15 | 2011-11-02 | 西安中邦钛生物材料有限公司 | Worm-drive bidirectional symmetric movement distraction apparatus |
| CN204484281U (en) * | 2015-02-12 | 2015-07-22 | 沈建雄 | Spinal column non-fused inner fixing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110184466A1 (en) * | 2010-01-26 | 2011-07-28 | Weiser Harry C | Spinal Instrumentation Systems and Methods of Making and Using the Same |
-
2015
- 2015-02-12 CN CN201510076995.4A patent/CN105982725B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1686055A (en) * | 2005-06-10 | 2005-10-26 | 王岩 | Rachiocampis correction device |
| WO2009100459A1 (en) * | 2008-02-08 | 2009-08-13 | Texas Scottish Rite Hospital For Children | External fixation strut |
| CN202020523U (en) * | 2011-04-15 | 2011-11-02 | 西安中邦钛生物材料有限公司 | Worm-drive bidirectional symmetric movement distraction apparatus |
| CN204484281U (en) * | 2015-02-12 | 2015-07-22 | 沈建雄 | Spinal column non-fused inner fixing device |
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| CN105982725A (en) | 2016-10-05 |
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