CN209404914U - Posterior occipitocervical joint prosthesis device - Google Patents
Posterior occipitocervical joint prosthesis device Download PDFInfo
- Publication number
- CN209404914U CN209404914U CN201822100987.0U CN201822100987U CN209404914U CN 209404914 U CN209404914 U CN 209404914U CN 201822100987 U CN201822100987 U CN 201822100987U CN 209404914 U CN209404914 U CN 209404914U
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- China
- Prior art keywords
- atlas
- joint prosthesis
- connector
- ball
- posterior
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- Expired - Fee Related
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- 210000000103 occipital bone Anatomy 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 241000209149 Zea Species 0.000 claims description 4
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 4
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 4
- 235000008429 bread Nutrition 0.000 claims description 4
- 235000005822 corn Nutrition 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000004927 fusion Effects 0.000 description 4
- 230000002980 postoperative effect Effects 0.000 description 3
- 210000003484 anatomy Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 108010048734 sclerotin Proteins 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 208000005137 Joint instability Diseases 0.000 description 1
- 206010029174 Nerve compression Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 210000002632 atlanto-axial joint Anatomy 0.000 description 1
- 210000003044 atlanto-occipital joint Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000000472 traumatic effect Effects 0.000 description 1
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- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model relates to a kind of posterior occipitocervical joint prosthesises.Posterior occipitocervical joint prosthesis device described in the utility model includes: occipital fixation plates, corresponds to human body occipital bone position；Atlas and axis joint prosthesis corresponds to human body atlas and axis position；And occipital fixation plates support stick, connect the occipital fixation plates and the atlas and axis joint prosthesis；The atlas and axis joint prosthesis is to be connected atlas connecting rod and axial links by ball-and-socket multiaxial connector and formed, and the atlas connecting rod is bent into the arc curvature to match according to arch of posterior atlas, and is fixed on atlas pedicle of vertebral arch；The axial links are capable of fixing in axis arch root.Posterior occipitocervical joint prosthesis device described in the utility model makes patient have more stable axial load-bearing capacity while retaining the axial-rotation ability between atlas and axis, to further increase the quality of life of patient.
Description
Technical field
The utility model belongs to Orthopedic Clinical instrument field, is related to a kind of joint prosthesis device, after one kind
Rest the head on neck joint prosthesis device in road.
Background technique
Neck combined area is rested the head on, also known as pillow extensive region pivot complex, by occipital bone, atlas, dentata and its joint connected each other and ligament
Etc. structure compositions, adjoin in anatomical structure with important nerve, blood vessel.Clinically various types of pillow neck boundaries illness is more
It is common, and the particularity of anatomical structure and complexity, so that the therapeutic modality of pillow neck combined area illness always is spinal surgery
Priority and difficulty.
Degenerated or traumatic articulatio atlantoepistrophica, atlanto occipital joint it is unstable can cause patient pain, nerve compression, spinal cord damage
Wound even death etc..Currently used for pillow neck combined area, axially unstable most common therapeutic scheme is the fusion of way of escape articulatio atlantoepistrophica
Art or Occipital-cervical fusion, the postoperative effect that can achieve strong fixed fusion of the two.But articulatio atlantoepistrophica post-fusion, extensive region pivot close
Ability is lost for movement (front and back bend and stretch, left and right lateral bending, axial-rotation) in all directions of section, and Atlantoaxial joint instability is main
It is unstable on front-rear direction.45% rotary moveable degree of human cervical spine all and between atlas and axis is completed, therefore is rested the head on neck and fixed
The postoperative mobility that can retain between atlas and axis will can greatly improve the quality of life of patient.Someone devises the way of escape thus
The restricted non-fused fixed device of articulatio atlantoepistrophica, remains the movement energy of articulatio atlantoepistrophica axial-rotation on the basis of traditional operation
Power.On the other hand, strong fixed fusion bring stress concentration effect makes interior fix itself be easy to fatigue, fracture, dredges in sclerotin
Excessively rigid strong fixation is used on the backbone of pine, and sclerotin is be easy to cause to cut.
A kind of posterior occipitocervical fixing joint system of this researching and designing makes patient retain most rotation between atlas and axis and lives
Moving while spending has more stable axial load-bearing capacity, to further increase the quality of life of patient.
Summary of the invention
The purpose of this utility model is to provide a kind of posterior occipitocervical joint prosthesis devices, it is that one kind is exclusively used in way of escape pillow
Neck fixes the fixation device of (occipital bone to 2 centrum of neck), can achieve device more fixed than other existing neck posterior occipitocervicals and retains extensive region pivot
Most of rotary moveable effect between vertebra.
A kind of posterior occipitocervical joint prosthesis device described in the utility model, comprising: occipital fixation plates correspond to human body and rest the head on
Bony site；Atlas and axis joint prosthesis corresponds to human body atlas and axis position；And occipital fixation plates support stick, connect the occipital bone
Fixed plate and the atlas and axis joint prosthesis；The atlas and axis joint prosthesis be by ball-and-socket multiaxial connector connection atlas connecting rod and
Axial links and formed, the atlas connecting rod is bent into the arc curvature to match according to arch of posterior atlas, and is fixed on atlas
Pedicle of vertebral arch；The axial links are capable of fixing in axis arch root.
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the occipital fixation plates by
Intermediate plate and symmetrical two side plates composition, middle line are set there are two the screw hole with occipital bone screw mates, and two side plates are respectively set
A connector is set to be connected with the occipital fixation plates support stick.Therefore, it can be used occipital bone screw will be described by the screw hole
Occipital fixation plates are fixed on occipital bone,
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the atlas connecting rod is thick
Thin uniform curved rod, there is club connector on the outside of the center vertex of curved rod, the both ends of curved rod respectively with 1 vertebra of neck
The U-shaped groove of pedicle screw at body is connected；The ball-and-socket multiaxial connector has hollow ball steamed bread of corn portion open at one end；It is described
Club connector is mutually chimeric with hollow ball steamed bread of corn portion, and can rotate along ball-and-socket.
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the ball-and-socket multiaxis connection
The opening on the head of device is equipped with the unidirectional elastic slice of annular, so that connecting when the bulb of the club connector is embedded in the ball-and-socket multiaxis
When connecing the head of device, the bulb of club connector is stated in the unidirectional elastic slice ejecting card residence of annular, prevents the club connector
Abjection, while allowing atlas connecting rod using the bulb of club connector as fulcrum, it is close to ball-and-socket inner wall and is done within the scope of certain angle
It is limited it is anteflexion, extend back, lateral bending, axial rotation motion.
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the one of the axial links
End is the end of thread, is matched with the hickey of the ball-and-socket multiaxial connector, and with nut locking, the other end is non-threaded
End, is connected with the U-shaped groove of pedicle screw at 2 centrum of neck.
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the occipital fixation plates branch
Support stick is bent in 90 ° to 100 ° of angle, to adapt to pillow neck angle, both ends respectively with the connector of the occipital fixation plates and
The U-shaped groove of pedicle screw at 1 centrum of neck is connected.
According to the further feature of posterior occipitocervical joint prosthesis device described in the utility model, the setting of all screw holes is all
Allow the screw way of screw has the adjusting range within 15 ° in that orthogonal direction, has within 30 ° on taper track in all directions
Adjusting range.
Posterior occipitocervical joint prosthesis device described in the utility model is special to fix that (occipital bone is extremely through neck posterior occipitocervical
2 centrum of neck) fixation device, the fixation device used more in the past has better mobility and stability.The dress of the utility model
Set can make patient it is postoperative retain it is certain it is anteflexion, extend back, the ability of lateral bending, axial rotation motion, while strengthening pillow neck be non-and melting
Fixed support strength is closed, the quality of life for improving patient is conducive to.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of posterior occipitocervical joint prosthesis device described in the utility model.
Fig. 2 is the side view of posterior occipitocervical joint prosthesis device shown in FIG. 1.
Appended drawing reference:
1,2: the screw hole of occipital fixation plates intermediate plate；3: the connector of occipital fixation plates side plate；4: occipital fixation plates support
Stick；5: atlas connecting rod；6: club connector bar portion；7: club connector bulb；8: ball-and-socket multiaxial connector ball-and-socket；9: ball-and-socket is more
Mandrel connector hickey；10: the non-threaded end of axial links；11: the axial links end of thread；12: axial links nut；13: pillow
Bone screws；14: occipital fixation plates side plate connector nut；15: pedicle screw；16；Pedicle screw nut.
Specific embodiment
Embodiment one: the assembling of posterior occipitocervical joint prosthesis described in the utility model
Posterior occipitocervical joint prosthesis device described in the utility model, as depicted in figs. 1 and 2, by the occipital bone of top half
Fixed plate, the atlas and axis joint prosthesis device of lower half portion, and connect the occipital fixation plates support stick composition of two half parts up and down；
Occipital fixation plates support stick can be bent into certain angle to adapt to pillow neck angle, and connection occipital fixation plates are manually closed with atlas and axis
It is close to human body bony structure when section, it is preferable that pillow neck angular range is 90 ° to 100 °.Atlas connecting rod can be rolled over according to arch of posterior atlas
Required arc curvature is curved, length can also be cut according to actual needs.
As depicted in figs. 1 and 2, the intermediate plate in occipital fixation plates is uniformly arranged two screw holes 1 and 2, and two screw holes are just
Middle line is vertically arranged, and occipital fixation plates can be fixed on occipital bone outer wall with occipital bone screw 13 by these screw holes.Two side plates are each
One connector 3 is set, can be connected by occipital fixation plates support stick 4 with atlas and axis joint prosthesis.
As depicted in figs. 1 and 2, atlas connecting rod is made of connecting rod 5, club connector bar portion 6, club connector bulb 7.It can
Atlas pedicle of vertebral arch is fixed at 5 both ends of connecting rod by pedicle screw 15.
As depicted in figs. 1 and 2, axial links are made of non-threaded end 10, the end of thread 11, lock nut 12.Vertebra can be passed through
Axis arch root, left and right each one are fixed in non-threaded end by pedicle screw 15.
As depicted in figs. 1 and 2, ball-and-socket multiaxial connector is formed by ball-and-socket 8, two.Club connector bulb 7 and ball-and-socket 8
Chimeric, the axial links end of thread 11 is connected with hickey 9, and with the locking of lock nut 12, forms atlas and axis joint prosthesis.
Posterior occipitocervical joint prosthesis device described in the utility model can be made of steel plate or similar material.
The setting of posterior occipitocervical joint prosthesis device described in the utility model, all screw holes all allows the screw way of screw to exist
There is the adjusting range within 15 ° on orthogonal direction, there is the adjusting range within 30 ° on taper track in all directions.
The specific size of posterior occipitocervical joint prosthesis described in the utility model is that have because of the individual difference of different patients
Body design.
In one specific embodiment, posterior occipitocervical joint prosthesis device is divided into upper and lower 2 parts, totally 13 elements.Upper half
Part includes: 1 piece of occipital fixation plates, 2 occipital fixation plates support sticks and 2 occipital bone screws.Lower half portion includes: 1 extensive region
Vertebra connecting rod, 1 ball-and-socket multiaxial connector, 2 axial links, 4 Universal pedicle screws.
Occipital bone screw is tack os integumentale screw, diameter 4.5mm, long 10mm.The pedicle screw diameter is
3.5mm, length 18-26mm.
Atlas connecting rod diameter is 3.0mm, and symmetrical centered on the club connector of center, both ends are respectively and at neck 1 or so
The U-shaped groove of two pedicle screws matches.The center of atlas connecting rod is club connector, the bar of club connector
Portion diameter 4.0mm, the bulb diameter 6.0mm of club connector, club connector and atlas connecting rod one, connector bulb can be with
Ball-and-socket multiaxial connector head is mutually fitted into, and is rotated along the ball-and-socket.Atlas connecting rod can be bent into institute according to arch of posterior atlas
The arc curvature needed, length can also be cut according to actual needs.
Ball-and-socket multiaxial connector is for connecting atlas connecting rod and axial links.The head of connector is open at one end hollow
Ball-and-socket shell, ball-and-socket outer diameter are 10.0mm, and ball-and-socket internal diameter is 7.5mm, and ball-and-socket opening diameter is 6.5mm, and opening is arranged one
The unidirectional elastic slice of annular, ball-and-socket opening diameter is 5.0mm after elastic slice pop-up.The embeddable ball-and-socket of club connector of the atlas connecting rod
The ball-and-socket of multiaxial connector, the unidirectional elastic slice pop-up of annular, blocks bulb, prevents club connector from deviating from, allow simultaneously after insertion
Atlas connecting rod using the bulb of club connector as fulcrum, be close to ball-and-socket inner wall done within the scope of certain angle it is limited it is anteflexion, after
It stretches, lateral bending, axial rotation motion.Respectively there are a hickey in ball-and-socket multiaxial connector two sides, can connect with the axial direction
The end of thread of bar is connected.
Axial links diameter is 3.0mm, and the end of thread is connected with the hickey of the ball-and-socket multiaxial connector, and with nut
Locking.Non-threaded end is connected with the U-shaped groove of the pedicle screw at neck 2.
Claims (7)
1. a kind of posterior occipitocervical joint prosthesis device characterized by comprising
Occipital fixation plates correspond to human body occipital bone position；
Atlas and axis joint prosthesis corresponds to human body atlas and axis position；And
Occipital fixation plates support stick connects the occipital fixation plates and the atlas and axis joint prosthesis；
The atlas and axis joint prosthesis is to be connected atlas connecting rod and axial links by ball-and-socket multiaxial connector and formed, the extensive region
Vertebra connecting rod is bent into the arc curvature to match according to arch of posterior atlas, and is fixed on atlas pedicle of vertebral arch；The axial links can be consolidated
Due to axis arch root.
2. posterior occipitocervical joint prosthesis device according to claim 1, it is characterised in that: the occipital fixation plates are by centre
Plate and symmetrical two side plates composition, middle line are set there are two the screw hole with occipital bone screw mates, and two side plates are respectively arranged one
A connector is connected with the occipital fixation plates support stick.
3. posterior occipitocervical joint prosthesis device according to claim 1, it is characterised in that: the atlas connecting rod is that thickness is equal
There is club connector in the center vertex outside of even curved rod, curved rod, and the both ends of curved rod are respectively and at 1 centrum of neck
The U-shaped groove of pedicle screw be connected；The ball-and-socket multiaxial connector has hollow ball steamed bread of corn portion open at one end；The club
Connector is mutually chimeric with hollow ball steamed bread of corn portion, and can rotate along ball-and-socket.
4. posterior occipitocervical joint prosthesis device according to claim 3, it is characterised in that: the ball-and-socket multiaxial connector
The opening on head is equipped with the unidirectional elastic slice of annular, so that when the bulb of the club connector is embedded in the ball-and-socket multiaxial connector
Head when, the bulb of club connector is stated in the unidirectional elastic slice ejecting card residence of annular, prevent the club connector from deviating from,
Allow atlas connecting rod using the bulb of club connector as fulcrum simultaneously, abutting ball-and-socket inner wall does limited within the scope of certain angle
It is anteflexion, extend back, lateral bending, axial rotation motion.
5. posterior occipitocervical joint prosthesis device according to claim 1, it is characterised in that: one end of the axial links is
The end of thread is matched with the hickey of the ball-and-socket multiaxial connector, and with nut locking, the other end is non-threaded end, with
The U-shaped groove of pedicle screw at 2 centrum of neck is connected.
6. posterior occipitocervical joint prosthesis device according to claim 1, it is characterised in that: the occipital fixation plates support stick
Be bent in 90 ° to 100 ° of angle, with adapt to pillow neck angle, both ends respectively with the connector of the occipital fixation plates and neck 1
The U-shaped groove of pedicle screw at centrum is connected.
7. posterior occipitocervical joint prosthesis device according to claim 1, it is characterised in that: the setting of all screw holes all allows
The screw way of screw has the adjusting range within 15 ° in that orthogonal direction, there is the tune within 30 ° on taper track in all directions
Whole range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100987.0U CN209404914U (en) | 2018-12-14 | 2018-12-14 | Posterior occipitocervical joint prosthesis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822100987.0U CN209404914U (en) | 2018-12-14 | 2018-12-14 | Posterior occipitocervical joint prosthesis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209404914U true CN209404914U (en) | 2019-09-20 |
Family
ID=67938206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822100987.0U Expired - Fee Related CN209404914U (en) | 2018-12-14 | 2018-12-14 | Posterior occipitocervical joint prosthesis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209404914U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680574A (en) * | 2019-10-24 | 2020-01-14 | 北京爱康宜诚医疗器材有限公司 | Front-back combined atlantoaxial fusion device |
| CN114999293A (en) * | 2022-05-20 | 2022-09-02 | 南方医科大学南方医院 | Skull base depression model manufacturing device and manufacturing method thereof |
| CN115006065A (en) * | 2022-07-11 | 2022-09-06 | 四川大学华西医院 | Artificial occipital atlantoaxial joint prosthesis |
-
2018
- 2018-12-14 CN CN201822100987.0U patent/CN209404914U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110680574A (en) * | 2019-10-24 | 2020-01-14 | 北京爱康宜诚医疗器材有限公司 | Front-back combined atlantoaxial fusion device |
| CN114999293A (en) * | 2022-05-20 | 2022-09-02 | 南方医科大学南方医院 | Skull base depression model manufacturing device and manufacturing method thereof |
| CN115006065A (en) * | 2022-07-11 | 2022-09-06 | 四川大学华西医院 | Artificial occipital atlantoaxial joint prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190920 |
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| CF01 | Termination of patent right due to non-payment of annual fee |