CN105943205A - A force application device for an expandable spinal fusion cage - Google Patents
A force application device for an expandable spinal fusion cage Download PDFInfo
- Publication number
- CN105943205A CN105943205A CN201610352976.4A CN201610352976A CN105943205A CN 105943205 A CN105943205 A CN 105943205A CN 201610352976 A CN201610352976 A CN 201610352976A CN 105943205 A CN105943205 A CN 105943205A
- Authority
- CN
- China
- Prior art keywords
- force application
- fusion device
- spinal fusion
- handle
- main casing
- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
Abstract
The invention provides a force application device for an expandable spinal fusion cage. The device comprises a main shell body (1); one end of the main shell body (1) is provided with a handle (2) and a force application rod (3) extends out from the other end of the main shell body (1); the force application rod (3) comprises a locating rod (31) at the inner layer, a push pipe (32) at the middle layer and a protection pipe (33) at the outer layer; the main shell body (1) is internally provided with a transmission mechanism (4) which can be driven by the handle (2) to drive the push pipe (32) and the protection pipe (33) to move. The force application device for an expandable spinal fusion cage can accurately control the deformation of a fusion cage, enables a fusion cage to deform elastically according to preset heights with high precision, improves operation accuracy greatly, and enables operations to be carried out quickly to relieve pain for patients.
Description
[technical field]
The present invention relates to a kind of force application apparatus for inflatable spinal fusion device.
[background technology]
Lumbar intervertebral disc degenerative disease is common lumbago and skelalgia and the handicapped class disease of causing, one
As show as dish source property lumbago, derangement of lumbar facet joint or pressuring nerve and cause sexually transmitted disease (STD), it is also possible to cause
Stenosis of disc space, severe patient may occur in which the diseases such as lumbar spondylolisthesis, affects work and the life of patient.At present
Common method for the treatment of includes expectant treatment, Minimally Invasive Surgery and surgical operation therapy, wherein lumbar spinal fusion
It it is a kind of Therapeutic Method reliable for effect.
The existing force application apparatus for inflatable spinal fusion device does not position bar, it is difficult to ensure to promote
Pipe moves along a straight line, it is difficult to ensure fusion device precision in deformation process.
The existing force application apparatus for inflatable spinal fusion device does not has protecting tube, and fusion device is in stress
During deformation, deformation is irregular, is likely to result in fusion device outer wall and can form projection, and part is not
Projection can be formed, it is difficult to controlling the deflection that fusion device is protruding, doctor is applied to the vertebra of patient
Between when performing the operation, easily cause potential safety hazard.
Owing to there are the problems referred to above, it is necessary to it is proposed solution, and the present invention is just such
Make under background.
[summary of the invention]
The technical problem to be solved is for above-mentioned deficiency of the prior art, it is provided that one
Planting the force application apparatus for inflatable spinal fusion device, this is used for force dress of inflatable spinal fusion device
Putting the deformation quantity that can accurately control fusion device at force application mechanism, its height and precision are according to setting in advance
Fixed size generation elastic deformation, is greatly enhanced the degree of accuracy of operation, it is simple to quickly perform the operation, for
Patient releases slight illness.
For achieving the above object, present invention employs following technical proposals:
A kind of force application apparatus for inflatable spinal fusion device, including main casing 1, at described main casing
1 one end is provided with handle 2, is extended with force application rod 3, described force application rod 3 at described main casing 1 other end
Including being located at the location bar 31 of internal layer, it is located at promoting pipe 32 and being located at the protecting tube 33 of outer layer of middle level,
Be provided with in described main casing 1 can described handle 2 act under drive respectively described promotion pipe 32 and
The drive mechanism 4 of described protecting tube 33 motion.
Drive mechanism 4 includes the first drive mechanism for promoting described promotion pipe 32 to move as mentioned above
41 and for promoting the second drive mechanism 42 that described protecting tube 33 moves.
First drive mechanism 41 described above includes being located between described handle 2 and described promotion pipe 32
Catch bar 411 and the first driver plate 412.
Second drive mechanism 42 described above includes being located between described handle 2 and described protecting tube 33
The collar 421 and the second driver plate 422.
In one end body of rod of handle 2 described above, it is provided with cavity 21, stretches at described handle 2 described
One end body of rod outer wall in main casing 1 is provided with left hand thread 22, is provided with on described cavity 21 inwall
Right-handed thread 23, described catch bar 411 one end is stretched in described cavity 21, at described catch bar 411
Being provided with the catch bar screw thread 4111 corresponding with described right-handed thread 23, described catch bar 411 can be in institute
State and under the driving of handle 2, drive described first driver plate 412 to seesaw in described main casing 1.
The collar 421 described above is provided with the collar thread 4211 corresponding with described left hand thread 22,
The described collar 421 can drive described second to pass under the driving of described handle 2 in described main casing 1
Dynamic plate 422 seesaws.
Solid by the first pin 51 between the collar 421 and described second driver plate 422 one end as mentioned above
Fixed connection, by the first connector between described second driver plate 422 other end and described protecting tube 33
61 fixing connections.
Be provided with mounting head 4112 at catch bar 411 other end described above, described mounting head 4112 with
Being provided with the second pin 52 between described first driver plate 412, described first driver plate 412 pushes away with described
Connect by the second connector 62 is fixing between dynamic pipe 32.
It is provided with draw-in groove 321 in the end, one end promoting pipe 32 to stretch in described main casing 1 as mentioned above,
Described second connector 62 is provided with the 3rd pin 53 snapped in described draw-in groove 321.
It is protruding that end, one end in protecting tube 33 described above stretches into described main casing 1 is provided with protecting tube
331, described first connector 61 is provided with first matched with described protecting tube projection 331 even
Fitting screens 611.
Being provided with draw-in groove 7 in main casing 1 described above, bar 31 one end, described location is provided with clamping joint
311, described clamping joint 311 is stuck on described draw-in groove 7, and described location bar 31 other end stretches out described
Outside main casing 1, it is provided with in bar 31 external part end, described location for being connected fixing company with fusion device
Joint 312, is provided with rotation direction screw thread on described union joint 312.
Being fixed with bearing 8 on main casing 1 described above, described handle 2 one end passes described bearing
8 stretch in main casing 1.
The invention has the beneficial effects as follows:
1, the present invention provides a kind of force application apparatus for inflatable spinal fusion device, and this is used for inflatable
The force application apparatus of spinal fusion device can accurately control the deformation quantity of fusion device at force application mechanism, protruding
Height and precision according to size generation elastic deformation set in advance, be greatly enhanced the degree of accuracy of operation,
It is easy to quickly perform the operation, releases slight illness for patient.
2, the force application apparatus being used for inflatable spinal fusion device among the present invention has location bar, it is possible to have
Effect ensures to promote pipe to move along a straight line, it is possible to ensure fusion device precision in deformation process, the opposing party
Face can abut against the inwall of fusion device part body so that the outer wall of fusion device can only be laterally
Form projection, the direction of protruding deformation is effectively ensured.
3, the force application apparatus being used for inflatable spinal fusion device among the present invention has protecting tube, this protection
Pipe can be to after-contraction under the driving of handle, and fusion device outer wall gradually forms projection, and fusion device is being subject to
Transformation rule during force deformation, does not results in fusion device outer wall and can form projection, and part is not
Projection can be formed, it is simple to controlling the deflection that fusion device is protruding, doctor is applied to the vertebra of patient
Between when performing the operation, do not result in potential safety hazard.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional view of the present invention.
Fig. 2 is the sectional view of the present invention.
Fig. 3 is the A portion partial enlarged view among Fig. 2.
Fig. 4 is the B portion partial enlarged view among Fig. 2.
Fig. 5 is the C portion partial enlarged view among Fig. 2.
Fig. 6 is the sectional view that the present invention is mounted together with fusion device.
Fig. 7 is the D portion partial enlarged view among Fig. 6.
[detailed description of the invention]
Below in conjunction with the accompanying drawings the present invention is done further detailed description.
As shown in Figures 1 to 7, a kind of force application apparatus for inflatable spinal fusion device, including main
Housing 1, is provided with handle 2 in described main casing 1 one end, is extended with at described main casing 1 other end and executes
Power bar 3, described force application rod 3 includes the location bar 31 being located at internal layer, is located at promotion pipe 32 He in middle level
Being located at the protecting tube 33 of outer layer, being provided with in described main casing 1 can under described handle 2 acts on respectively
Driving described promotion pipe 32 and the drive mechanism 4 of described protecting tube 33 motion, the present invention provides a kind of
For the force application apparatus of inflatable spinal fusion device, this is used for the force application apparatus of inflatable spinal fusion device
Can accurately control the deformation quantity of fusion device at force application mechanism, protruding height and precision are according in advance
The size generation elastic deformation set, is greatly enhanced the degree of accuracy of operation, it is simple to quickly perform the operation,
Slight illness is released for patient.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, described drive mechanism 4 includes
For promoting the first drive mechanism 41 that described promotion pipe 32 moves and for promoting described protecting tube 33
Second drive mechanism 42 of motion, for the force application apparatus tool of inflatable spinal fusion device among the present invention
Having protecting tube, this protecting tube can be to after-contraction under the driving of handle, and fusion device outer wall gradually forms
Projection, fusion device is transformation rule during stress deformation, does not results in fusion device outer wall energy
Forming projection, part can not form projection, it is simple to controlling the deflection that fusion device is protruding, doctor is by it
When being applied to perform the operation between the vertebra of patient, do not result in potential safety hazard.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, described first drive mechanism 41
Including the catch bar 411 being located between described handle 2 and described promotion pipe 32 and the first driver plate
412, handle 2 is driven by the first drive mechanism 41 and promotes pipe 32 forward or rearward movement, it is achieved
Fusion device outer wall is carried out crimp.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, described second drive mechanism 42
Including the collar 421 being located between described handle 2 and described protecting tube 33 and the second driver plate 422,
Handle 2 drives protecting tube 33 forward or rearward movement by the second drive mechanism 42, it is achieved protection
Pipe is progressively to after-contraction under the driving of handle, and fusion device outer wall gradually forms projection.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, in one end of described handle 2
Cavity 21 it is provided with, on one end body of rod outer wall in described handle 2 stretches into described main casing 1 in the body of rod
It is provided with left hand thread 22, described cavity 21 inwall is provided with right-handed thread 23, described catch bar 411
One end is stretched in described cavity 21, and it is right with described right-handed thread 23 to be provided with on described catch bar 411
The catch bar screw thread 4111 answered, described catch bar 411 can be described master under the driving of described handle 2
Described first driver plate 412 is driven to seesaw in housing 1.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, the described collar 421 sets
Having the collar thread 4211 corresponding with described left hand thread 22, the described collar 421 can be at described handle 2
Driving under in described main casing 1 drive described second driver plate 422 seesaw.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, the described collar 421 is with described
Connect by the first pin 51 is fixing between second driver plate 422 one end, described second driver plate 422
It is connected by the first connector 61 is fixing between the other end with described protecting tube 33.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, another at described catch bar 411
One end is provided with mounting head 4112, is provided with between described mounting head 4112 and described first driver plate 412
Second pin 52, by the second connector between described first driver plate 412 and described promotion pipe 32
62 fixing connections.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, stretch at described promotion pipe 32
End, one end in described main casing 1 is provided with draw-in groove 321, is provided with card on described second connector 62
Enter the 3rd pin 53 in described draw-in groove 321.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, stretch at described protecting tube 33
End, one end in described main casing 1 is provided with protecting tube projection 331, on described first connector 61
It is provided with the first connector screens 611 matched with described protecting tube projection 331.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, set in described main casing 1
Having draw-in groove 7, bar 31 one end, described location to be provided with clamping joint 311, described clamping joint 311 is stuck in institute
Stating on draw-in groove 7, described location bar 31 other end stretches out outside described main casing 1, at described location bar 31
External part end is provided with for being connected fixing union joint 312 with fusion device, on described union joint 312
Being provided with rotation direction screw thread, among invention, the force application apparatus for inflatable spinal fusion device has location bar,
Can effectively ensure that promotion pipe moves along a straight line, it is possible to ensure fusion device precision in deformation process,
On the other hand the inwall of fusion device part body can be abutted against so that the outer wall of fusion device can only
Form projection laterally, the direction of protruding deformation is effectively ensured.
As shown in Fig. 2, Fig. 3, Fig. 4, Fig. 6, in the present embodiment, solid on described main casing 1
Surely being provided with bearing 8, described handle 2 one end is stretched in main casing 1 through described bearing 8.
As shown in Figures 1 to 7, the force application apparatus of inflatable spinal fusion device it is used among the present invention
Operation principle is such that when fusion device is embedded between human spine by needs, and surgical staff twists
Handle 2, owing to being provided with left hand thread 22 on one end body of rod outer wall in stretching into main casing 1 at handle,
Body of rod cavity 21 inwall is provided with right-handed thread 23, the collar 421 is provided with and described left hand thread
The collar thread 4211 that 22 match, the body of rod in described catch bar 411 stretches into described cavity 21
Outer wall is provided with the catch bar screw thread 4111 matched with described right-handed thread 23, and first collar 41 is at hands
Under the drive of handle 2, the direction to handle one end is moved, and the collar 421 drives the second driver plate 422 to hands
The direction of handle one end is moved, and the second driver plate 422 moves protecting tube 33 and moves to the direction of handle one end；
Meanwhile, catch bar 411 moves to the direction away from handle one end under the drive of handle 2, pushes away
Lever 411 promotes the first driver plate 412 to move to the direction away from handle one end, the first driver plate 412
Promote pipe 32 to move to the direction away from handle one end, promote pipe 32 to promote the part of fusion device
Outer wall makees bulging deformation, and owing to being screw drive between protecting tube 33 and handle 2, its transmission is to have rule
The progressively action of rule, the outer wall of fusion device progressively exposes from protecting tube 33, thus progressively shape
Become bulging deformation.
Claims (10)
1. the force application apparatus for inflatable spinal fusion device, it is characterised in that: include main casing
(1), it is provided with handle (2) in described main casing (1) one end, at described main casing (1) other end
Being extended with force application rod (3), described force application rod (3) includes the location bar (31) being located at internal layer, is located at
The promotion pipe (32) in middle level and be located at the protecting tube (33) of outer layer, sets in described main casing (1)
Have and described promotion can be driven under described handle (2) acts on respectively to manage (32) and described protecting tube (33)
The drive mechanism (4) of motion.
Force application apparatus for inflatable spinal fusion device the most according to claim 1, its feature
It is: described drive mechanism (4) includes for promoting described the first transmission promoting pipe (32) to move
Mechanism (41) and be used for the second drive mechanism (42) promoting described protecting tube (33) to move.
Force application apparatus for inflatable spinal fusion device the most according to claim 2, its feature
It is: described first drive mechanism (41) includes that being located at described handle (2) promotes pipe (32) with described
Between catch bar (411) and the first driver plate (412).
Force application apparatus for inflatable spinal fusion device the most according to claim 2, its feature
It is: described second drive mechanism (42) includes being located at described handle (2) and described protecting tube (33)
Between the collar (421) and the second driver plate (422).
Force application apparatus for inflatable spinal fusion device the most according to claim 3, its feature
It is: in one end body of rod of described handle (2), be provided with cavity (21), stretches at described handle (2)
One end body of rod outer wall entered in described main casing (1) is provided with left hand thread (22), at described cavity
(21) inwall is provided with right-handed thread (23), and described cavity is stretched in described catch bar (411) one end
(21), in, described catch bar (411) is provided with the promotion corresponding with described right-handed thread (23)
Bar screw thread (4111), described catch bar (411) can be described master under the driving of described handle (2)
Described first driver plate (412) is driven to seesaw in housing (1).
Force application apparatus for inflatable spinal fusion device the most according to claim 4, its feature
It is: on the described collar (421), be provided with the collar thread corresponding with described left hand thread (22)
(4211), the described collar (421) can be in described main casing (1) under the driving of described handle (2)
Described second driver plate of interior drive (422) seesaws.
Force application apparatus for inflatable spinal fusion device the most according to claim 6, its feature
It is: by the first pin between the described collar (421) and described second driver plate (422) one end
(51) fixing connection, between described second driver plate (422) other end and described protecting tube (33)
Connect by the first connector (61) is fixing.
Force application apparatus for inflatable spinal fusion device the most according to claim 5, its feature
It is: be provided with mounting head (4112) at described catch bar (411) other end, in described mounting head (4112)
And it is provided with the second pin (52), described first driver plate (412) between described first driver plate (412)
It is connected by the second connector (62) is fixing between pipe (32) with described promotion.
Force application apparatus for inflatable spinal fusion device the most according to claim 8, its feature
It is: stretch into the end, one end in described main casing (1) described promotion pipe (32) and be provided with draw-in groove (321),
Described second connector (62) is provided with the 3rd pin (53) snapped in described draw-in groove (321).
Force application apparatus for inflatable spinal fusion device the most according to claim 7, its feature
It is: the end, one end in described protecting tube (33) stretches into described main casing (1) is provided with protecting tube
Protruding (331), are provided with (331) phase protruding with described protecting tube on described first connector (61)
The the first connector screens (611) coordinated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352976.4A CN105943205B (en) | 2016-05-24 | 2016-05-24 | A kind of force application apparatus for being used to may expand spinal fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610352976.4A CN105943205B (en) | 2016-05-24 | 2016-05-24 | A kind of force application apparatus for being used to may expand spinal fusion device |
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| Publication Number | Publication Date |
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| CN105943205A true CN105943205A (en) | 2016-09-21 |
| CN105943205B CN105943205B (en) | 2018-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610352976.4A Active CN105943205B (en) | 2016-05-24 | 2016-05-24 | A kind of force application apparatus for being used to may expand spinal fusion device |
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| CN (1) | CN105943205B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112932738A (en) * | 2019-12-10 | 2021-06-11 | 先健科技(深圳)有限公司 | Conveyor and conveying system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105943205B (en) | 2018-05-29 |
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