CN203089337U - Minitype internal fixation and fusion device of atlantoaxial lateral mass joint - Google Patents
Minitype internal fixation and fusion device of atlantoaxial lateral mass joint Download PDFInfo
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- CN203089337U CN203089337U CN2013200541145U CN201320054114U CN203089337U CN 203089337 U CN203089337 U CN 203089337U CN 2013200541145 U CN2013200541145 U CN 2013200541145U CN 201320054114 U CN201320054114 U CN 201320054114U CN 203089337 U CN203089337 U CN 203089337U
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- Prior art keywords
- lateral mass
- fusion device
- internal fixation
- minitype
- dentata
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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
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Neurology (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 utility model relates to a minitype internal fixation and fusion device of an atlantoaxial lateral mass joint. The minitype internal fixation and fusion device comprises a fusion apparatus and a minitype steel plate, wherein the fusion apparatus is implanted into a gap of the atlantoaxial lateral mass joint, and the minitype steel plate is used for fixing the fusion apparatus. A bone window which penetrates through the upper surface and the lower surface of the fusion apparatus is arranged in the middle of the fusion apparatus. A wedge-shaped inserting part is arranged at the front end of the fusion apparatus. The minitype steel plate comprises a positioning screw hole which is connected with an atlantoaxial through positioning screw and a supporting face which abuts against the rear end of the fusion apparatus. According to the minitype internal fixation and fusion device of the atlantoaxial lateral mass joint, an original entire fusion device is divided into the fusion apparatus and the minitype steel plate, the wedge-shaped inserting part at the front end of the fusion apparatus can enable the fusion apparatus to be implanted into the gap of the atlantoaxial lateral mass joint conveniently, the minitype steel plate from the rear end enables atlantoaxial lateral masses and the fusion apparatus to be mutually fixed, the purpose of bone grafting supporting among the atlantoaxial lateral masses can be achieved, and the minitype internal fixation and fusion device is small and exquisite, portable, beneficial to wound healing, and suitable for atlantoaxial bone grafting operations.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, the miniature internal fixation fusing device in dentata lateral mass joint, particularly a kind of extensive region.
Background technology
Cervical spinal injury usually can cause the fracture of fracture of odontoid process of vertebra dentata or transverse ligament of atlas, thereby causes atlantoaxial dislocation.Behind the atlantoaxial dislocation, the spinal canal stenosis of respective planes cervical vertebra, the compressing spinal cord causes clinical symptoms such as the unable even paralysis of numb limbs and tense tendons.So atlantoaxial dislocation is a kind of disease of serious harm patient health.Generally speaking, the extensive region dentata that the prominent fracture of fresh tooth causes takes off can implement the prominent screw fixing operation of tooth, treats can regain the stable of atlanto-odontoid joint after the union of fracture.And the atlantoaxial dislocation that the transverse ligament of atlas fracture causes, operation can't be repaired the transverse ligament of fracture, can only implement extensive region dentata fusion and rebuild Atlantoaxial stable.Extensive region dentata integration technology commonly used has a variety of, and road technique and way of escape internal fixation technology are the extensive region dentata bone grafting operation on basis before mainly comprising.
Extensive region dentata bone grafting method commonly used comprises bone grafting between the dentata way of escape plate of extensive region, and the surperficial bone grafting in anterior arch of atlas and dens axis and vertebral body the place ahead and the interarticular support bone grafting of extensive region dentata lateral mass etc. are several.Wherein preceding two kinds of bone grafting methods are easier, but implant bed is an extensive region dentata superficial surface structure, if exist bone grafting not the supporting role and the operation back bone grafting that lack dentata lateral mass joint, extensive region of fusion rate height, bone grafting do not merge, the shortcoming of losing that atlantoaxial dislocation resets appears.In order to improve the fusion efficiencies of extensive region dentata bone grafting, strengthen its bone grafting support function, optimal in theory bone grafting mode is to close internode through extensive region dentata lateral mass to support bone grafting.
Clinically, usually adopt through oropharynx approach enforcement pivot lateral mass joint, extensive region and loosen when resetting, get autologous iliac bone, and be trimmed to suitable extensive region dentata lateral mass joint shape, the supporter mode that is easy to insert undergos surgery, and has obtained the good clinical effect.This operation usually needs to implement in conjunction with extensive region dentata anterior plate fixing.And extensive region dentata anterior plate volume at present commonly used is big and be overall structure, and soft tissue and muscle that human body is swallowed rear wall are thinner, and thick and big steel plate influences wound healing easily.Therefore a kind of both having reached between the dentata lateral mass of extensive region of medical skill circle urgent need supported bone grafting, is beneficial to the miniature internal fixation fusing device in dentata lateral mass joint, extensive region of wound healing again.
The utility model content
In order to overcome above-mentioned technical problem, the purpose of this utility model is to provide a kind of light small and exquisite, miniature internal fixation fusing device in dentata lateral mass joint, extensive region of being beneficial to wound healing.
The technical scheme that this utility model adopted is:
The miniature internal fixation fusing device in dentata lateral mass joint, a kind of extensive region, comprise the fusion device of implanting dentata lateral mass joint space, extensive region, with the fixed miniature steel plate of described fusion device, the middle part of described fusion device is provided with the bone window that connects its upper and lower surface, the front end of described fusion device is the insertion section of wedge shape, and described miniature steel plate comprises the positioning screw hole that is connected with the extensive region dentata by dog screw and the supporting surface of butt fusion device rear end.
As further improvement in the technical proposal, the upper surface of described fusion device and/or lower surface are provided with some sawtooth.
As further improvement in the technical proposal, described fusion device is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid or allograph bone or xenogenesis bone.
As further improvement in the technical proposal, described fusion device is made by degradable Poly-L-lactic acid material.
As further improvement in the technical proposal, described miniature steel plate is " Y " type, and described positioning screw hole is separately positioned on three ends of " Y " type.
As further improvement in the technical proposal, described each positioning screw hole is equipped with the universal lock ring.
As further improvement in the technical proposal, described miniature steel plate is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid.
The beneficial effects of the utility model are: this utility model is divided into fusion device and miniature steel plate with the fusing device of original monoblock, the wedge shape insertion section of fusion device front end makes things convenient for it to be implanted to dentata lateral mass joint space, extensive region, miniature steel plate interfixes from the rear end with extensive region dentata lateral mass and fusion device, both can reach the purpose that supports bone grafting between the dentata lateral mass of extensive region, small volume and less weight again is beneficial to wound healing.
Description of drawings
Below in conjunction with drawings and embodiments this utility model is further specified.
Fig. 1 is the top view of fusion device;
Fig. 2 is the front view of fusion device;
Fig. 3 is a sketch map of implanting fusion device;
Fig. 4 is this utility model user mode sketch map.
The specific embodiment
The miniature internal fixation fusing device in dentata lateral mass joint, a kind of extensive region comprises the fusion device 1 of implanting dentata lateral mass joint space, extensive region and with fusion device 1 fixed miniature steel plate 2.As Fig. 1, Fig. 2 and shown in Figure 3, fusion device 1 is a rectangle spline structure that is surrounded by wall, and upper and lower surface is substantially parallel, and its middle part is provided with the bone window 3 that connects its upper and lower surface, is used to fill spongy bone.The front end of fusion device 1 is the insertion section 4 of wedge shape, is easy to insert narrow dentata lateral mass gap, extensive region.Miniature steel plate 2 comprises the positioning screw hole 5 that is connected with the extensive region dentata by dog screw and the supporting surface of butt fusion device 1 rear end.
The wedge shape insertion section 4 of fusion device 1 front end makes things convenient for it to be implanted to dentata lateral mass joint space, extensive region, and miniature steel plate 2 interfixes from the rear end with extensive region dentata lateral mass and fusion device 1, can reach the purpose that supports bone grafting between the dentata lateral mass of extensive region.In addition the fusing device of traditional made of one piece is divided into the combination of fusion device 1 and miniature steel plate 2, makes both can distinguish implant procedure, small volume and less weight is beneficial to wound healing.
As preferred embodiment, the upper surface of fusion device 1 is provided with some sawtooth 6, can rely on sawtooth 6 to increase the frictional force of contact surfaces after fusion device 1 is implanted, stable after being beneficial to fusion device 1 and implanting.
As preferred embodiment, the lower surface of fusion device 1 is provided with some sawtooth 6.
As preferred embodiment, the upper surface of fusion device 1 and lower surface are equipped with some sawtooth 6.
As preferred embodiment, fusion device 1 is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid or allograph bone or xenogenesis bone.
As preferred embodiment, fusion device 1 is made by degradable Poly-L-lactic acid material, can be absorbed by the body after the bone fusion is finished.
As preferred embodiment, utilize leg-of-mutton stability, miniature steel plate 2 is " Y " type, and positioning screw hole 5 is separately positioned on three ends of " Y " type.
As preferred embodiment, each positioning screw hole 5 is equipped with the universal lock ring, can adjust the angle that screw enters earlier before with screw positioning screw hole 5 and extensive region dentata being fixed, and reduces patient's misery.
Wherein, lateral mass is fixed and pointed to the positioning screw hole 5 of the upper end of " Y " type and two pieces of atlas screws and atlas; The positioning screw hole 5 of " Y " type lower end and screw are close to dentata lateral mass articular surface below as reverse dentata pedicle screw, point to the dentata pedicle of vertebral arch, can realize reverse fixation of pedicle mode, to obtain maximum mechanical strength.
As preferred embodiment, miniature steel plate 2 is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid.
Present embodiment is to realize like this and operation:
(1) inserts dentata lateral mass joint space, extensive region with special-purpose dilator, the lateral mass joint space of both sides is done slightly loosen and strut;
(2) as shown in Figure 3, select one piece of interim supporter, insert a side lateral mass joint, to keep the opening width in offside lateral mass joint, use the cartilage cleaner, remove the extensive region dentata cartilage of lateral mass articular surface up and down, select suitable fusion device 1, after in bone window 3, inserting spongy bone or artificial bone induced material, implant in the lateral mass joint space;
(3) as shown in Figure 4, select one piece of suitable miniature steel plate 2, the top is screwed into two pieces of atlas screws in the boring of lateral mass of atlas direction, and the below is screwed into one piece of reverse dentata pedicle screw in the boring of dentata pedicle of vertebral arch direction;
(4) implement the operation of offside with identical method.
The above be this utility model preferred embodiment, it does not constitute the restriction to this utility model protection domain.
Claims (7)
1. the miniature internal fixation fusing device in dentata lateral mass joint, an extensive region, it is characterized in that: comprise the fusion device (1) of implanting dentata lateral mass joint space, extensive region, the fixed miniature steel plate of described fusion device (1) (2), the middle part of described fusion device (1) is provided with the bone window (3) that connects its upper and lower surface, the front end of described fusion device (1) is the insertion section (4) of wedge shape, and described miniature steel plate (2) comprises the positioning screw hole (5) that is connected with the extensive region dentata by dog screw and the supporting surface of butt fusion device (1) rear end.
2. the miniature internal fixation fusing device in dentata lateral mass joint, extensive region according to claim 1, it is characterized in that: the upper surface of described fusion device (1) and/or lower surface are provided with some sawtooth (6).
3. the miniature internal fixation fusing device in dentata lateral mass joint, extensive region according to claim 1 and 2 is characterized in that: described fusion device (1) is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid or allograph bone or xenogenesis bone.
4. the miniature internal fixation fusing device in dentata lateral mass joint, extensive region according to claim 3, it is characterized in that: described fusion device (1) is made by degradable Poly-L-lactic acid material.
5. the miniature internal fixation fusing device in dentata lateral mass joint, extensive region according to claim 1, it is characterized in that: described miniature steel plate (2) is " Y " type, and described positioning screw hole (5) is separately positioned on three ends of " Y " type.
6. the miniature internal fixation fusing device in extensive region dentata lateral mass joint according to claim 1 or 5, it is characterized in that: described each positioning screw hole (5) is equipped with the universal lock ring.
7. the miniature internal fixation fusing device in extensive region dentata lateral mass joint according to claim 1 or 5 is characterized in that: described miniature steel plate (2) is made by medical titanium alloy or degradable medical magnesium alloy or degradable Poly-L-lactic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200541145U CN203089337U (en) | 2013-01-30 | 2013-01-30 | Minitype internal fixation and fusion device of atlantoaxial lateral mass joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200541145U CN203089337U (en) | 2013-01-30 | 2013-01-30 | Minitype internal fixation and fusion device of atlantoaxial lateral mass joint |
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| Publication Number | Publication Date |
|---|---|
| CN203089337U true CN203089337U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200541145U Expired - Fee Related CN203089337U (en) | 2013-01-30 | 2013-01-30 | Minitype internal fixation and fusion device of atlantoaxial lateral mass joint |
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| CN (1) | CN203089337U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103494657A (en) * | 2013-08-15 | 2014-01-08 | 刘官喜生 | Fusion cage |
| CN106170990A (en) * | 2014-04-29 | 2016-11-30 | 耳蜗有限公司 | The vibration conductor of percutaneous |
| CN107928844A (en) * | 2017-12-22 | 2018-04-20 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN108143523A (en) * | 2017-12-22 | 2018-06-12 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN110916783A (en) * | 2019-12-05 | 2020-03-27 | 广州华钛三维材料制造有限公司 | Dentata centrum fixing and fusing device |
| CN112998916A (en) * | 2021-02-19 | 2021-06-22 | 陈赞 | Atlas lateral mass prosthesis |
-
2013
- 2013-01-30 CN CN2013200541145U patent/CN203089337U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103494657A (en) * | 2013-08-15 | 2014-01-08 | 刘官喜生 | Fusion cage |
| CN106170990A (en) * | 2014-04-29 | 2016-11-30 | 耳蜗有限公司 | The vibration conductor of percutaneous |
| CN106170990B (en) * | 2014-04-29 | 2021-03-05 | 科利耳有限公司 | Percutaneous vibration conductor |
| CN107928844A (en) * | 2017-12-22 | 2018-04-20 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN108143523A (en) * | 2017-12-22 | 2018-06-12 | 北京大学第三医院 | Atlas and axis Lateral mass joint fixes fusing device |
| CN108143523B (en) * | 2017-12-22 | 2024-01-23 | 北京大学第三医院 | Atlantoaxial lateral mass joint fixing fusion device |
| CN107928844B (en) * | 2017-12-22 | 2024-03-12 | 北京大学第三医院 | Atlantoaxial lateral mass joint fixing fusion device |
| CN110916783A (en) * | 2019-12-05 | 2020-03-27 | 广州华钛三维材料制造有限公司 | Dentata centrum fixing and fusing device |
| CN112998916A (en) * | 2021-02-19 | 2021-06-22 | 陈赞 | Atlas lateral mass prosthesis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20150130 |
|
| EXPY | Termination of patent right or utility model |