CN106726020B - Lift Invasive lumbar fusion device - Google Patents
Lift Invasive lumbar fusion device Download PDFInfo
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- CN106726020B CN106726020B CN201710078408.4A CN201710078408A CN106726020B CN 106726020 B CN106726020 B CN 106726020B CN 201710078408 A CN201710078408 A CN 201710078408A CN 106726020 B CN106726020 B CN 106726020B
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- lifting body
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- shell
- fusion device
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- 230000004927 fusion Effects 0.000 title claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 55
- 210000000988 bone and bone Anatomy 0.000 claims description 25
- 230000001225 therapeutic effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000035876 healing Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000116 mitigating effect Effects 0.000 description 4
- 230000037361 pathway Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002103 nanocoating Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0004—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof adjustable
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of lifting Invasive lumbar fusion devices, including shell, lifting body and drive rod, the shell is equipped with erecting bed, the erecting bed is equipped with installation inclined-plane, the lifting body is slidably mounted on the installation inclined-plane, the drive rod is movably mounted on the shell, the drive rod is equipped with the push-and-pull block for driving the lifting body to be slided on the installation inclined-plane, the push-and-pull block is equipped with guide groove, and the lifting body is equipped with and the matched guide pad of the guide groove；Alternatively, the push-and-pull block is equipped with guide pad, the lifting body, which is equipped with, to be slidably mounted in the matched guide groove of the guide pad, the guide pad in guide groove.The lifting Invasive lumbar fusion device is simple in structure, and height is easy to adjust, can adapt to the intervertebral height of different patients, therapeutic effect is good.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of lifting Invasive lumbar fusion device.
Background technology
In daily life, the case that centrum damages is caused to happen occasionally due to tumour, fracture, infection etc..It is controlling
When treating these patients, it is one fusion device of implantation between the centrum of damage by the way of, bone tissue is made to generate creeping substitution, from
And repair the centrum of damage.However traditional threaded fusion cage height is fixed, and the intervertebral height of human body then varies with each individual, therefore
Can not adapt to the intervertebral height of different patients by adjusting the height of threaded fusion cage in operation, affect treatment versatility and
Applicability.
Invention content
Based on this, the invention reside in overcoming the deficiencies of existing technologies, a kind of lifting Invasive lumbar fusion device simple in structure is provided,
The adjusting that can realize height, to adapt to the intervertebral height of different patients, therapeutic effect is good.
A kind of lifting Invasive lumbar fusion device, including shell, lifting body and drive rod, the shell is equipped with erecting bed, described
Erecting bed is equipped with installation inclined-plane, and the lifting body is slidably mounted on the installation inclined-plane, and the drive rod is removable
Ground install on the housing, the drive rod be equipped with for drive the lifting body it is described installation inclined-plane on slide push away
Pulling block, the push-and-pull block are equipped with guide groove, and the lifting body is equipped with and the matched guide pad of the guide groove；Alternatively, institute
It states push-and-pull block and is equipped with guide pad, the lifting body is equipped with can slide with the matched guide groove of the guide pad, the guide pad
It is mounted in guide groove dynamicly.
Above-mentioned lifting Invasive lumbar fusion device, when the movement drive rod, drive rod is moved with push-and-pull block OQ t body,
Since lifting body is limited on the installation inclined-plane of erecting bed, while push-and-pull block is moved with drive rod, guide pad can be driven
It is relatively moved along guide groove, so that lifting body slides on installation inclined-plane, realizes the adjusting of lifting body height.The lifting
Invasive lumbar fusion device is simple in structure, and height is easy to adjust, can adapt to the intervertebral height of different patients, therapeutic effect is good.
Dovetail groove, the slot bottom of the dovetail groove and the installation are additionally provided on the shell in one of the embodiments,
Inclined-plane is parallel, and the lifting body is equipped with and the matched dovetails of the dovetail groove.Utilize the cooperation of dovetail groove and dovetails
Lifting body can be preferably mounted on the installation inclined-plane of erecting bed, avoid lifting body from falling off, while improving lifting body and existing
Stationarity when lifting.
The erecting bed is two in one of the embodiments, and two erecting beds are oppositely arranged, the lifting body
It is slidably mounted on the installation inclined-plane of two erecting beds.In this way, lifting body is not easy to shake in lifting process, use is more flat
Surely, healing has higher success rate.
The guide groove is two in one of the embodiments, and two guide groove interval settings, the guide pad is two
A, two are oriented to block gap setting, and two guide pads are slidably fitted in corresponding guide groove so that push-and-pull
Block can drive lifting body to be slided on installation inclined-plane more stablely, and stability is good.
The drive rod is screw rod in one of the embodiments, and the screw rod includes the thread segment being connected and connection
Section, the thread segment are threadedly coupled with the shell, and the outer diameter of the thread segment is more than the outer diameter of the linkage section, the push-and-pull
Block is equipped with mounting hole, and the push-and-pull block is rotatably sleeved on by the mounting hole outside the linkage section, the linkage section
It is equipped with first annular slot, the first annular slot is located at side of the push-and-pull block far from the thread segment, the first annular slot
Split washer for being abutted with the push-and-pull block is inside installed.It can be realized by rotating in the forward direction screw rod and contra rotating screw
Forward direction movement and reverse movement, the height degree of regulation for pushing and pulling block are high.And it will be pushed and pulled by the end face of split washer and thread segment
Block card is set on linkage section, and this dismountable mode is more convenient for assembling, and renewal part is more convenient.
The shell includes grain-clamping table and the hollow frame with through-hole, the grain-clamping table in one of the embodiments,
It is fixed on hollow frame, the threaded hole being connected to the through-hole, the thread segment and the screw thread is equipped in the grain-clamping table
Hole is threadedly coupled, and the erecting bed is arranged on the inner wall of the through-hole.In this way, shell has larger inner space, operation
The space of middle bone grafting is big, and bone grafting can be more, effectively improves healing success rate.
The grain-clamping table is equipped with the second annular groove being connected to the threaded hole in one of the embodiments, described
Second annular groove circumferentially, is equipped in second annular groove for abutting with the thread segment along the grain-clamping table
Locking baffle ring avoids the height that screw bolt loosening leads to lifting body from changing and influence therapeutic effect.
The screw rod is equipped with bone grafting channel, axis of the bone grafting channel along the screw rod in one of the embodiments,
To arrangement, to further increase bone grafting and interpyramidal pathway for fusion, fusion success rate is improved, while mitigating threaded fusion cage
Weight.
Be additionally provided with bone grafting hole on the shell in one of the embodiments, with further increase bone grafting with it is interpyramidal
Pathway for fusion improves fusion success rate, while mitigating the weight of threaded fusion cage.
The lifting body includes the first lifting body and the second lifting body, first lifting in one of the embodiments,
Body is arranged on the top of shell, and second lifting body is arranged on the lower part of shell, first lifting body, the second lifting body
It is equipped with the guide groove or guide pad；The erecting bed includes the first erecting bed and the second erecting bed, installation inclined-plane packet
The the second installation inclined-plane for including the first installation inclined-plane being arranged on the first erecting bed and being arranged on the second erecting bed, described first
The inclined direction on installation inclined-plane and the second installation inclined-plane is on the contrary, first lifting body is slidably mounted in first installation
On inclined-plane, second lifting body is slidably mounted on second installation inclined-plane.It pushes and pulls block and drives the first lifting simultaneously
Body, the second lifting body slide on the first installation inclined-plane, the second installation inclined-plane respectively so that the first lifting body, the second lifting body
It is close to each other or deviate from, it can so realize that larger range of height is adjusted, using more convenient.
Description of the drawings
Fig. 1 is the structural schematic diagram of the lifting Invasive lumbar fusion device described in the embodiment of the present invention；
Fig. 2 is the schematic top plan view of the lifting Invasive lumbar fusion device described in the embodiment of the present invention；
Fig. 3 is the schematic cross-sectional view along the directions A-A in Fig. 2；
Fig. 4 is the structural schematic diagram of the shell described in the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the first lifting body described in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the second lifting body described in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the push-and-pull block described in the embodiment of the present invention.
Reference sign：
10, shell, 100, grain-clamping table, 101, threaded hole, the 102, second annular groove, 110, hollow frame, 111, dovetail groove,
112, through-hole, 113, bone grafting hole, the 120, first erecting bed, the 121, first installation inclined-plane, the 130, second erecting bed, the 131, second peace
Fill inclined-plane, 20, lifting body, the 200, first lifting body, the 210, second lifting body, 220, guide pad, 230, dovetails, 240, anti-skidding
Tooth, 30, drive rod, 320, bone grafting channel, 40, push-and-pull block, 400, guide groove, 410, mounting hole, 50, split washer, 60, locking
Baffle ring.
Specific implementation mode
The embodiment of the present invention is described in detail below：
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described.In attached drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.On the contrary, when element is referred to as " directly existing " another element "upper",
There is no intermediary elements.Term as used herein " vertically ", " horizontal ", "left", "right" and similar statement are
For illustrative purposes, it is not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant Listed Items.
In conjunction with shown in Fig. 1-3, the lifting Invasive lumbar fusion device described in the present embodiment, including shell 10, lifting body 20 and driving
Bar 30.The shell 10 is equipped with erecting bed, and the erecting bed is equipped with installation inclined-plane, and the lifting body 20 is slidably mounted
On the installation inclined-plane.The drive rod 30 is movably mounted on the shell 10, and the drive rod 30, which is equipped with, to be used
In the push-and-pull block 40 for driving the lifting body 20 to be slided on the installation inclined-plane.In conjunction with shown in Fig. 5-6, on the lifting body 20
Equipped with anti-slop serrations 240 healing success rate is improved for increasing the frictional force between lifting body 20 and centrum.
In the present embodiment, the lifting body includes the first lifting body 200 and the second lifting body 210, first lifting
Body 200 is arranged on the top of shell 10, and second lifting body 210 is arranged in the lower part of shell 10.
In conjunction with shown in Fig. 4, the erecting bed includes the first erecting bed 120 and the second erecting bed 130, installation inclined-plane packet
The the second installation inclined-plane for including the first installation inclined-plane 121 being arranged on the first erecting bed 120 and being arranged on the second erecting bed 130
131, the first installation inclined-plane 121 is opposite with the second installation inclined direction on inclined-plane 131.Wherein, described in the present embodiment
The triangle erecting bed that one erecting bed 120 and the second erecting bed 130 are integrally formed, it is easy to process, while saving space so that
The space bigger of bone grafting in operation.In other embodiments, first erecting bed 120 can also be done with the second erecting bed 130
At split structure.
First lifting body 200 is slidably mounted on first installation inclined-plane 121, second lifting body
210 are slidably mounted on second installation inclined-plane 131.The push-and-pull block 40 be equipped with guide groove 400, described first liter
Being equipped on drop body 200, the second lifting body 210 can slide with 400 matched guide pad 220 of the guide groove, the guide pad 220
It is mounted in guide groove 400 dynamicly.
Above-mentioned lifting Invasive lumbar fusion device, when the mobile drive rod 30 of forward direction, it is opposite that drive rod 30 pushes push-and-pull block 40
First lifting body 200, the second lifting body 210 move forward, since the first lifting body 200 is limited in the first erecting bed 120
On first installation inclined-plane 121, the second lifting body 210 is limited on the second installation inclined-plane 131 of the second erecting bed 130, push-and-pull
While block 40 is moved with drive rod 30, the guide pad 220 on the first lifting body 200 can be pushed relatively along guide groove 400
Move up and push the guide pad 220 on the second lifting body 210 relatively to be moved down along guide groove 400 so that first liter
Body 200 is dropped upward sliding on inclined-plane 121 is installed first and makes the second lifting body 210 on the second installation inclined-plane 131 downwards
Sliding realizes the increase of lifting Invasive lumbar fusion device height to allow the first lifting body 200, the second lifting body 210 mutually to deviate from.
When reversely pushing the drive rod 30, drive rod 30 hauls push-and-pull block 40 with respect to 200, second liters of the first lifting body
Drop body 210 moves backward, since the first lifting body 200 is limited on the first installation inclined-plane 121 of the first erecting bed 120, the
Two lifting bodies 210 are limited on the second installation inclined-plane 131 of the second erecting bed 130, and push-and-pull block 40 is moved with drive rod 30
While, the guide pad 220 on the first lifting body 200 can be pulled relatively to move down and pull second liter along guide groove 400
Guide pad 220 on drop body 210 is relatively moved up along guide groove 400 so that the first lifting body 200 installs inclined-plane first
Slide downward and so that the second lifting body 210 upward sliding on the second installation inclined-plane 131 on 121, to allow the first lifting body
200, the second lifting body 210 is close to each other, realizes the reduction of lifting Invasive lumbar fusion device height.
The lifting Invasive lumbar fusion device is simple in structure, and height is easy to adjust, can adapt to the intervertebral height of different patients, treats
Effect is good.Push and pull block 40 drives the first lifting body 200, the second lifting body 210 to install inclined-plane 121, second first respectively simultaneously
Installation is slided on inclined-plane 131 so that the first lifting body 200, the second lifting body 210 is close to each other or deviates from, and can so realize
Larger range of height is adjusted, using more convenient.
As alternative embodiment, guide pad 220 is set on the push-and-pull block 40, is arranged on the lifting body 20
With 220 matched guide groove 400 of the guide pad, it can also reach same effect.
It should be noted that the present embodiment is using the first lifting body 200, the second lifting body 210 is close to each other or deviates from
Scheme realizes the adjusting of lifting Invasive lumbar fusion device height.In other embodiments, the first lifting body 200 can also be used to fix not
Dynamic, the second lifting body 210 is slided on installation inclined-plane or the second lifting body 210 is fixed, and the first lifting body 200 is being installed
The scheme slided on inclined-plane, is not limited.
In conjunction with shown in Fig. 3,4,5,6,10 upper and lower part of shell described in the present embodiment further respectively has dovetail groove 111,
Slot bottom positioned at the dovetail groove 111 on 10 top of shell is parallel with the first installation inclined-plane 121, is located at the swallow of 10 lower part of shell
The slot bottom of stern notch 111 is parallel with the second installation inclined-plane 131, on first lifting body 200, the second lifting body 210
Equipped with 111 matched dovetails 230 of the dovetail groove.Using dovetail groove 111 and dovetails 230 cooperation can preferably by
Lifting body 20 is mounted on the installation inclined-plane of erecting bed, and lifting body 20 is avoided to fall off, while improving lifting body 20 in lifting
Stationarity.Similarly, dovetails 230 are set on the shell 10, setting and the dovetails on the lifting body 20
230 matched dovetail grooves 111, can also reach same effect.
In conjunction with shown in Fig. 6,7, the guide groove 400 is two, and two guide grooves 400 are arranged at intervals on push-and-pull block 40,
The guide pad 220 is two, and two guide pads 220 are arranged at intervals on lifting body 20, and two guide pads 220 respectively can
It is slidably mounted in corresponding guide groove 400 so that push-and-pull block 40 can drive lifting body 20 on installation inclined-plane more stablely
Upper sliding, stability are good.
Drive rod described in the present embodiment is screw rod, and the screw rod includes the thread segment and linkage section being connected, the spiral shell
Line section is threadedly coupled with the shell 10, and the outer diameter of the thread segment is more than the outer diameter of the linkage section.On the push-and-pull block 40
Equipped with mounting hole 410, the push-and-pull block 40 is rotatably sleeved on by the mounting hole 410 outside the linkage section, the company
It connects section and is equipped with first annular slot 311, the first annular slot 311 is located at side of the push-and-pull block 40 far from the thread segment, institute
State the split washer 50 being equipped in first annular slot 311 for being abutted with the push-and-pull block 40.By rotate in the forward direction screw rod and
Forward direction movement and the reverse movement of push-and-pull block 40, height degree of regulation height can be realized in contra rotating screw.And it is kept off by being open
The end face of circle 50 and thread segment will push and pull the card of block 40 and set on linkage section, and this dismountable mode is more convenient for assembling, more
It is more convenient to change part.
Further, the screw rod is equipped with bone grafting channel, the bone grafting channel along the axial arranged of the screw rod, with into
One step increases bone grafting and interpyramidal pathway for fusion, improves fusion success rate, while mitigating the weight of threaded fusion cage.The plant
The front end in bone channel is hexagonal channels, convenient for passing through screwdriver rotary screw.The rear end in the bone grafting channel is circular channel,
It is convenient for bone grafting operation.
In conjunction with shown in Fig. 4, the shell 10 includes grain-clamping table 100 and the hollow frame 110 with through-hole 112, the folder
It holds platform 100 to be fixed on hollow frame 110, the threaded hole 101 being connected to the through-hole 112, institute is equipped in the grain-clamping table 100
Thread segment is stated to be threadedly coupled with the threaded hole 101.The erecting bed is two, and two erecting beds are oppositely arranged on described
On the inner wall of through-hole 112, the lifting body 20 is slidably mounted on the installation inclined-plane of two erecting beds.In this way, lifting body
20 are not easy to shake in lifting process, and use is more stable, and healing has higher success rate.Meanwhile shell 10 has larger inside empty
Between, the space of bone grafting is big in operation, and bone grafting can be more, effectively improves healing success rate.
Further, it is additionally provided with bone grafting hole 113 on the side wall of the hollow frame 110, to further increase bone grafting and vertebra
Pathway for fusion between body improves fusion success rate, while mitigating the weight of threaded fusion cage.
In the present embodiment, the grain-clamping table 100 is equipped with the second annular groove 102 being connected to the threaded hole 101, institute
The second annular groove 102 is stated along the grain-clamping table 100 circumferentially, be equipped in second annular groove 102 for it is described
The locking baffle ring 60 that thread segment abuts, avoids the height that screw bolt loosening leads to lifting body 20 from changing and influence therapeutic effect.
The all parts of lifting Invasive lumbar fusion device described in the present embodiment are by 304 stainless steels, polyether-ether-ketone, titanium alloy and bone
The material that girder metal etc. meets implanted medical device standard is made, safety and reliability.Lift all parts of Invasive lumbar fusion device
It is surface-treated by modes such as polishing, frosted, plasma spraying and spraying nano coatings, to improve fusion success rate.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of lifting Invasive lumbar fusion device, including shell, lifting body and drive rod, which is characterized in that the shell is equipped with peace
Platform is filled, the erecting bed is equipped with installation inclined-plane, and the lifting body is slidably mounted on the installation inclined-plane, the driving
Bar is movably mounted on the shell, and the drive rod is equipped with for driving the lifting body on the installation inclined-plane
The push-and-pull block of sliding, the push-and-pull block are equipped with guide groove, and the lifting body is equipped with and the matched guide pad of the guide groove；
Alternatively, the push-and-pull block is equipped with guide pad, the lifting body is equipped with and the matched guide groove of the guide pad, the guiding
Block is slidably mounted in guide groove.
2. lifting Invasive lumbar fusion device according to claim 1, which is characterized in that be additionally provided with dovetail groove, institute on the shell
The slot bottom for stating dovetail groove is parallel with the installation inclined-plane, and the lifting body is equipped with and the matched dovetails of the dovetail groove.
3. lifting Invasive lumbar fusion device according to claim 1, which is characterized in that the erecting bed is two, described in two
Erecting bed is oppositely arranged, and the lifting body is slidably mounted on the installation inclined-plane of two erecting beds.
4. lifting Invasive lumbar fusion device according to claim 1, which is characterized in that the guide groove is two, two guiding
Slot interval is arranged, and the guide pad is two, and two are oriented to block gap setting, and two guide pads are respectively slidably installed
In corresponding guide groove.
5. lifting Invasive lumbar fusion device according to claim 1, which is characterized in that the drive rod is screw rod, the screw rod
Including the thread segment and linkage section being connected, the thread segment is threadedly coupled with the shell, and the outer diameter of the thread segment is more than
The outer diameter of the linkage section, the push-and-pull block are equipped with mounting hole, and the push-and-pull block is rotationally arranged by the mounting hole
Outside the linkage section, the linkage section is equipped with first annular slot, and the first annular slot is located at push-and-pull block far from the spiral shell
The side of line section is equipped with the split washer for being abutted with the push-and-pull block in the first annular slot.
6. lifting Invasive lumbar fusion device according to claim 5, which is characterized in that the shell includes grain-clamping table and has logical
The hollow frame in hole, the grain-clamping table are fixed on hollow frame, and the screw thread being connected to the through-hole is equipped in the grain-clamping table
Hole, the thread segment are threadedly coupled with the threaded hole, and the erecting bed is arranged on the inner wall of the through-hole.
7. lifting Invasive lumbar fusion device according to claim 6, which is characterized in that the grain-clamping table is equipped with and the screw thread
Second annular groove of hole connection, second annular groove circumferentially, are installed along the grain-clamping table in second annular groove
It is useful for the locking baffle ring abutted with the thread segment.
8. lifting Invasive lumbar fusion device according to claim 5, which is characterized in that the screw rod is equipped with bone grafting channel, institute
Bone grafting channel is stated along the axial arranged of the screw rod.
9. lifting Invasive lumbar fusion device according to claim 1, which is characterized in that be additionally provided with bone grafting hole on the shell.
10. lifting Invasive lumbar fusion device according to claim 1-9 any one of them, which is characterized in that the lifting body includes the
One lifting body and the second lifting body, first lifting body are arranged on the top of shell, and second lifting body is arranged in shell
Lower part, be equipped with the guide groove or guide pad on first lifting body, the second lifting body；The erecting bed includes first
Erecting bed and the second erecting bed, the installation inclined-plane include the first installation inclined-plane being arranged on the first erecting bed and setting the
The second installation inclined-plane on two erecting beds, the inclined direction that inclined-plane is installed in the first installation inclined-plane with second is on the contrary, described the
One lifting body is slidably mounted on first installation inclined-plane, and second lifting body is slidably mounted in described second
It installs on inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078408.4A CN106726020B (en) | 2017-02-14 | 2017-02-14 | Lift Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710078408.4A CN106726020B (en) | 2017-02-14 | 2017-02-14 | Lift Invasive lumbar fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106726020A CN106726020A (en) | 2017-05-31 |
| CN106726020B true CN106726020B (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710078408.4A Active CN106726020B (en) | 2017-02-14 | 2017-02-14 | Lift Invasive lumbar fusion device |
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| CN (1) | CN106726020B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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