CN203354707U - Self-adjusting bone trabecula artificial intervertebral disk - Google Patents
Self-adjusting bone trabecula artificial intervertebral disk Download PDFInfo
- Publication number
- CN203354707U CN203354707U CN2012207515096U CN201220751509U CN203354707U CN 203354707 U CN203354707 U CN 203354707U CN 2012207515096 U CN2012207515096 U CN 2012207515096U CN 201220751509 U CN201220751509 U CN 201220751509U CN 203354707 U CN203354707 U CN 203354707U
- Authority
- CN
- China
- Prior art keywords
- final board
- self
- artificial intervertebral
- intervertebral disk
- semi
- 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 - Lifetime
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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
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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
- 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)
Abstract
The utility model relates to a self-adjusting bone trabecula artificial intervertebral disk which is composed of the following components: an upper final board, a lower final board and a semi-spherical rotating center. The upper final board and the lower final board are made of titanium alloy. The upper surface of the upper final board and the lower surface of the lower final board are provided with metal coating surfaces which simulate human cancellous bone for forming an irregular communicating gap. The semi-spherical rotating center is made of ultra-high-polymer polyethylene. The shape of the self-adjusting type bone trabecula artificial intervertebral disk is designed to a semi-sphere. The diameter of the semi-sphere is 8-10mm. The sphere center is arranged behind the sagittal diameter center of a prosthesis for 0.8mm. The semi-spherical surface is matched with the lower spherical socket of the upper final board. The bottom surface of the semi-sphere is connected with the upper part of the lower final board. Four pawls which are arranged rectangularly are arranged above the upper final board. The angle of each pawl is 90 DEG and the height is 1.5mm. The central position of the lower surface of the lower final board is provided with a strip-shaped spine which has a length of 10-12mm and a width of 1-2mm.
Description
Technical field
The present invention relates to a kind of self-adjusting type bone trabecula artificial intervertebral disk, mainly refer to a kind of spinal column physiological equilibrium orthopaedics spinal column product that also effectively the formation bone is grown into of can automatically adjusting after implantation.
Background technology
Artificial vertebral body displacement revision procedure has become a kind of relatively general surgical operation at present.Artificial intervertebral disk also is widely applied in similar spinal operation.It is mainly a kind of implantation product that can substitute the disc tissue excised in operation.Its product category is various.But artificial intervertebral disk majority previously is to focus on its material behavior, outward appearance and stable type at once.After implantation, issuable spinal column displacement regression is not tackled to way, make artificial intervertebral disk produce relative shear stress between vertebral body.When finally losing the stablizing effect in later stage also kyphosis deformity may occur.This patent has been made corresponding solution on correspondence problem.
The utility model content
A kind of self-adjusting type bone trabecula artificial intervertebral disk, is characterized in that, upper soleplate (1) lower surface ball-and-socket and hemisphere center of rotation (3) sphere routing motion.The objective of the invention is for solving the problem in spinal operation, for the spinal column intervertebral disc operation later stage is stable and prevent and treat spinal column displacement regression, providing better artificial intervertebral disk product.
For achieving the above object, this patent adopts following design:
The present invention is comprised of upper soleplate, lower soleplate, hemisphere center of rotation respectively.Upper soleplate and lower soleplate have all been used titanium alloy material, and upper soleplate surperficial and lower surface lower soleplate has thereon been used imitation mankind spongy bone metal material coating surface to make the irregular UNICOM of formation space.The hemisphere center of rotation is the ultra high molecular polyethylene material.Profile is designed to the hemisphere face body, and half bulb diameter is 8-10mm sphere center position 0.8mm after prosthese loses shape footpath center deviation.The hemisphere sphere coordinates with the below ball-and-socket of upper soleplate.The hemisphere bottom surface connects the top of lower soleplate.4 orthogonal arrangements of pawl have been designed in the top of upper soleplate, and under angle 90 degree tooth depth 1.5mm, soleplate lower surface center is designed with the strip bone sour jujube of long 10-12mm, wide 1-2mm.
Advantage of the present invention is:
1 self-adjusting type bone trabecula artificial intervertebral disk of the present invention is all the titanium alloy material except center of rotation, abandons habitual PEEK material when having guaranteed rational elastic modelling quantity, has increased the comprcssive strength of material own and better biocompatibility.
2 self-adjusting type bone trabecula artificial intervertebral disks of the present invention, the hemisphere center of rotation of ultra high molecular polyethylene material can play the displacement regression of hypocentrum in adjusting after prosthese is implanted, and offsets shear stress, guarantees good stability at later stage.The design of the agnail of upper soleplate can guarantee and the firm combination of top vertebral body, and the design of lower soleplate bone sour jujube and the firm combination of below vertebral body, realized anti-rotation and prevented the side direction slippage.Good stablizing effect is at once guaranteed in the two ingenious combination.
3 self-adjusting type bone trabecula artificial intervertebral disks of the present invention, upper soleplate upper surface and lower soleplate lower surface have adopted the surface, irregular UNICOM space of having copied the human body cancellous bone structure.Reach the good result of inducing bone to grow into after can stablizing in the early stage, thereby reach desirable stability at later stage.
The accompanying drawing explanation
Fig. 1 is the invention perspective view
The specific embodiment
As shown in Figure 1, self-adjusting type bone trabecula artificial intervertebral disk of the present invention: upper soleplate 1 surperficial and lower surface lower soleplate 2 has thereon been used imitation mankind spongy bone metal material coating surface 6,7 to make the irregular connectivity gap of formation.Hemisphere center of rotation 3 is the ultra high molecular polyethylene material.Profile is designed to the hemisphere face body, and half bulb diameter is 8-10mm sphere center position 0.8mm after prosthese loses shape footpath center deviation.The hemisphere sphere coordinates with the below ball-and-socket of upper soleplate.The hemisphere bottom surface connects the top of lower soleplate.Four orthogonal arrangements of pawl 4 have been designed in the top of upper soleplate, and under angle 90 degree tooth depth 1.5mm, soleplate lower surface center is designed with the strip bone sour jujube 5 of long 10-12mm, wide 1-2mm.
Claims (4)
1. a self-adjusting type bone trabecula artificial intervertebral disk, it is characterized in that, upper soleplate (1) lower surface ball-and-socket and hemisphere center of rotation (3) sphere routing motion, upper soleplate (1) surperficial and lower surface lower soleplate (2) has thereon been used imitation mankind spongy bone metal material coating surface (6,7) to make the irregular connectivity gap of formation.
2. self-adjusting type bone trabecula artificial intervertebral disk according to claim 1, is characterized in that, hemisphere center of rotation (3) is that ultra high molecular polyethylene material, profile are designed to the hemisphere face body, and half bulb diameter is 8-10mm.
3. self-adjusting type bone trabecula artificial intervertebral disk according to claim 1, is characterized in that, the orthogonal arrangement of four pawls (4) has been designed in the top of upper soleplate, angle 90 degree, tooth depth 1.5mm.
4. self-adjusting type bone trabecula artificial intervertebral disk according to claim 1, is characterized in that, lower soleplate lower surface center is designed with the strip bone sour jujube (5) of long 10-12mm, wide 1-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207515096U CN203354707U (en) | 2012-12-26 | 2012-12-26 | Self-adjusting bone trabecula artificial intervertebral disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207515096U CN203354707U (en) | 2012-12-26 | 2012-12-26 | Self-adjusting bone trabecula artificial intervertebral disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203354707U true CN203354707U (en) | 2013-12-25 |
Family
ID=49802542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207515096U Expired - Lifetime CN203354707U (en) | 2012-12-26 | 2012-12-26 | Self-adjusting bone trabecula artificial intervertebral disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203354707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124833A (en) * | 2018-11-08 | 2019-01-04 | 北京爱康宜诚医疗器材有限公司 | Artificial dentata |
| CN110393614A (en) * | 2019-08-10 | 2019-11-01 | 山东百多安医疗器械有限公司 | A kind of porous bionical cervical fusion cage |
-
2012
- 2012-12-26 CN CN2012207515096U patent/CN203354707U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109124833A (en) * | 2018-11-08 | 2019-01-04 | 北京爱康宜诚医疗器材有限公司 | Artificial dentata |
| CN110393614A (en) * | 2019-08-10 | 2019-11-01 | 山东百多安医疗器械有限公司 | A kind of porous bionical cervical fusion cage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |