CN201453353U - Intervertebral cage - Google Patents
Intervertebral cage Download PDFInfo
- Publication number
- CN201453353U CN201453353U CN2009200732517U CN200920073251U CN201453353U CN 201453353 U CN201453353 U CN 201453353U CN 2009200732517 U CN2009200732517 U CN 2009200732517U CN 200920073251 U CN200920073251 U CN 200920073251U CN 201453353 U CN201453353 U CN 201453353U
- Authority
- CN
- China
- Prior art keywords
- lug boss
- outer lug
- fusion device
- plane
- invasive lumbar
- 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.)
- Expired - Fee Related
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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
-
- 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
Landscapes
- 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 surgical instrument, in particular to a vertebral column positioner which aims to provide an intervertebral cage which is convenient for positioning in a surgery and can bear larger pressure of the human body. The intervertebral cage is a hollow cylinder, and the surface of the cylinder is provided with through holes which are uniformly distributed and used for bone grafting and fusion. The intervertebral cage is characterized in that the upper end and the lower end of the cylinder are respectively provided with an upper outer boss and a lower outer boss, and the front part of the upper outer boss is provided with an upward positioning lug. The utility model has the advantages that the upper end of the intervertebral cage is provided with the positioning lug so as to ensure that positioning becomes easy, and the possibility of positioning errors is reduced; both ends of the intervertebral cage are provided with the outward boss, thus contact areas with adjacent vertebral bodies are increased, and the pressure bearing capacity is also improved; and the lower outer boss is provided with an arc gradient simulating the biological curvature of the cervical vertebra so as to better match with a lower vertebral body in the surgery.
Description
Technical field
This utility model relates to a kind of surgical operating instrument, especially a kind of spinal column localizer.
Background technology
When carrying out the anterior cervical decompression bone graft fusion, need carry out time full excision of preceding road cervical vertebra to patient, broken bone piece is inserted Invasive lumbar fusion device, again Invasive lumbar fusion device is implanted the depressor area between the two joint vertebral bodys, thereby played the effect of merging two joint vertebral bodys.The Invasive lumbar fusion device that is adopted has decisive role to the effect and even the success or failure of operation.
The patent No. is the utility model patent of CN200520048097, a kind of anti-sinking anterior cervical vertebrae multi-segmental Invasive lumbar fusion device has been described, comprise that it is shaped as the cylinder of hollow, this cylindrical side is equipped with the uniform through hole of being convenient to bone-graft fusion, and its inboard, two ends is equipped with the radial protrusion that the assisted end face that is extended internally by sidewall increases surface area; Cylindrical both ends of the surface have shallow dentation end face, can prevent behind the implant into body that it from sliding between the upper and lower cone; Wherein cylindrical lower end is an inclined-plane.
This Invasive lumbar fusion device of the prior art prolongs projection in both ends of the surface are provided with, but has increased the contact area of end face and vertebral body.After surgery, can prevent that fusion device from sinking to entering vertebral body, but still have following two defectives:
(1) Invasive lumbar fusion device of this utility model product is in operation, and difficult location is difficult to Invasive lumbar fusion device and cervical vertebra perfect cooperation and fixing.
(2) owing to the inside radial protrusion of its sidewall of above-mentioned Invasive lumbar fusion device, though can increase the surface area that contacts with the upper and lower vertebral body, because its diameter is little, the human pressure that can bear is little.
The utility model content
The purpose of this utility model is that the solution patent No. is above-mentioned two defectives of the utility model patent of CN200520048097, provide a kind of being convenient in art, to locate, can bear bigger human pressure again, and the Invasive lumbar fusion device that can better cooperate, merge with adjacent vertebra neck.
Invasive lumbar fusion device described in the utility model, it is the cylinder of a hollow, be provided with through hole on cylindrical surface as bone-graft fusion, it is characterized in that: be respectively equipped with outer lug boss, following outer lug boss at cylindrical two ends up and down, also be provided with locating convex block upwards in the front portion of last outer lug boss.
Described front portion of going up the outer lug boss upper surface is provided with low early and high after inclined-plane, and locating convex block is positioned at the centre on inclined-plane.
The height of described locating convex block is concordant with last outer lug boss rear horizontal face height.
The described lower surface of outer lug boss down is the inclined-plane, and the sloping peak and the projection on described inclined-plane are positioned at cylindrical the same side.
The described inclined-plane of outer lug boss lower end down, its angle of inclination is the 5-10 degree.
The described inclined-plane of outer lug boss lower end down also has upwards indent, forms the arc gradient of a simulation cervical curvature.
The horizontal plane part of described upward outer lug boss and the lower surface of following outer lug boss are equipped with the zigzag pawl.
It is described that to be used for the through hole that bone-graft fusion uses be rhombus, circle or oval.
The utlity model has following advantage: be provided with locating convex block in the Invasive lumbar fusion device upper end, make the location in the operation become easy, reduce the probability of position error simultaneously. be provided with outside boss structure at the two ends of Invasive lumbar fusion device, both increased contact area with adjacent vertebral bodies, improved the bearing capacity of fusion device again. be provided with the arc gradient of simulation cervical curvature in the lower surface of Invasive lumbar fusion device, in operation, can cooperate with the next vertebral body better.
Description of drawings
Fig. 1 is an axonometric chart of the present utility model;
Fig. 2 is a side view of the present utility model;
Fig. 3 is this utility model postoperative status sketch map.
Specific embodiment
Referring to Fig. 1, this utility model is the cylinder of a hollow, is provided with equally distributed through hole on cylindrical surface, and as bone-graft fusion, the shape of described through hole can be rhombus, circle or oval.Be respectively equipped with outer lug boss 1, following outer lug boss 2 at cylindrical two ends up and down, these two boss structures can effectively increase the contact area of fusion device and upper and lower vertebral body, thereby avoid the generation of postoperative sinkage.And compare the structure of indent, the outer lug boss structure can be born bigger pressure.Also be provided with locating convex block 3 upwards in the front portion of last outer lug boss 1, in operation, can play accurate localized effect; The rear portion is a horizontal plane, to support upper vertebral body.Front portion in last outer lug boss 1 upper surface also is provided with low early and high after inclined-plane 4, locating convex block 3 is positioned at the centre on inclined-plane 4, and the height of locating convex block 3 is concordant with last outer lug boss 1 rear horizontal face height, to keep the concordance (referring to Fig. 2) of fusion device upper surface height.The lower surface of following outer lug boss 2 is inclined-plane 21, its angle of inclination is at the 5-10 degree, and the sloping peak and the projection 3 on this inclined-plane 21 are positioned at cylindrical the same side, and have the upwards arc of indent, so that match (referring to Fig. 2) in the art better with the physiology curvature of the next vertebral body.Be equipped with the zigzag pawl in the horizontal plane part of last outer lug boss 1 and the lower surface of following outer lug boss 2, be used to increase the frictional force of postoperative fusion device and upper and lower vertebral body contact surface, avoid the fusion device slippage.
Claims (8)
1. Invasive lumbar fusion device, it is the cylinder of a hollow, be provided with through hole as bone-graft fusion on cylindrical surface, it is characterized in that: be respectively equipped with outer lug boss (1), following outer lug boss (2) at cylindrical two ends up and down, also be provided with locating convex block (3) upwards in the front portion of last outer lug boss (1).
2. a kind of Invasive lumbar fusion device according to claim 1 is characterized in that: described front portion of going up outer lug boss (1) upper surface is provided with low early and high after inclined-plane (4), and the rear portion is a horizontal plane, and locating convex block (3) is positioned at the centre of inclined-plane (4).
3. a kind of Invasive lumbar fusion device according to claim 2 is characterized in that: the height of described locating convex block (3) is concordant with last outer lug boss (1) rear horizontal face height.
4. a kind of Invasive lumbar fusion device according to claim 1 is characterized in that: the described lower surface of outer lug boss (2) down is inclined-plane (21), and the sloping peak of described inclined-plane (21) and projection (3) are positioned at cylindrical the same side.
5. a kind of Invasive lumbar fusion device according to claim 4 is characterized in that: the described inclined-plane (21) of outer lug boss (2) lower end down has the upwards arc of indent.
6. a kind of Invasive lumbar fusion device according to claim 4 is characterized in that: the described inclined-plane (21) of outer lug boss (2) lower end down, its angle of inclination is the 5-10 degree.
7. a kind of Invasive lumbar fusion device according to claim 2 is characterized in that: the horizontal plane part of described upward outer lug boss (1) and the lower surface of following outer lug boss (2) are equipped with the zigzag pawl.
8. a kind of Invasive lumbar fusion device according to claim 1 is characterized in that: described to be convenient to the through hole that bone-graft fusion uses be rhombus, circle or oval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200732517U CN201453353U (en) | 2009-06-02 | 2009-06-02 | Intervertebral cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200732517U CN201453353U (en) | 2009-06-02 | 2009-06-02 | Intervertebral cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453353U true CN201453353U (en) | 2010-05-12 |
Family
ID=42380693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200732517U Expired - Fee Related CN201453353U (en) | 2009-06-02 | 2009-06-02 | Intervertebral cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201453353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107137166A (en) * | 2017-05-09 | 2017-09-08 | 王文军 | Personalized 3D printing column reconstruction device and preparation method thereof |
| CN107280824A (en) * | 2017-05-12 | 2017-10-24 | 武汉理工大学 | A kind of bionical artificial spinal prosthesis with flange |
-
2009
- 2009-06-02 CN CN2009200732517U patent/CN201453353U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107137166A (en) * | 2017-05-09 | 2017-09-08 | 王文军 | Personalized 3D printing column reconstruction device and preparation method thereof |
| CN107137166B (en) * | 2017-05-09 | 2024-03-29 | 王文军 | Personalized 3D printing spine reconstruction device and preparation method thereof |
| CN107280824A (en) * | 2017-05-12 | 2017-10-24 | 武汉理工大学 | A kind of bionical artificial spinal prosthesis with flange |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140602 |