CN201977964U - Artificial intervertebral disc - Google Patents
Artificial intervertebral disc Download PDFInfo
- Publication number
- CN201977964U CN201977964U CN2011200456105U CN201120045610U CN201977964U CN 201977964 U CN201977964 U CN 201977964U CN 2011200456105 U CN2011200456105 U CN 2011200456105U CN 201120045610 U CN201120045610 U CN 201120045610U CN 201977964 U CN201977964 U CN 201977964U
- Authority
- CN
- China
- Prior art keywords
- soleplate
- artificial intervertebral
- end plate
- spherical
- male member
- 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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Classifications
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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)
Abstract
The utility model relates to an artificial intervertebral disc comprising a first end plate and a second end plate which are opposite to each other, wherein a spherical concave surface is arranged on the first end plate; a spherical convex surface is arranged on the second end plate; the spherical concave surface and the spherical convex surface are respectively arranged on the opposite surfaces of the first end plate and the second end plate and are matched and contacted; opposite back surfaces of the first end plate and the second end plate are respectively provided with coarse structures in contact with the end faces of upper and lower vertebral bodies; and hydroxyapatite coatings are respectively covered on the opposite back surfaces of the first end plate and the second end plate. The artificial intervertebral disc has good firmness and stability after implanted into the human body.
Description
Technical field
This utility model relates to a kind of artificial intervertebral disk, is used to fill up the space that stays behind the discectomy.
Background technology
The artificial cervical disc replacement is the new technique that 20 th century later occur, be actively to install by insert one at intervertebral space behind the discectomy of pro-road, replace original intervertebral disc and exercise its function, realize keeping motion segment, reduce the purpose that the Secondary cases regression appears in adjacent segment.Before this, traditional cervical spondylosis therapeutic method of surgery is: with the discectomy of pathological changes, bone grafting between upper and lower vertebral body is then filled up the space that stays behind the discectomy, is impelled upper and lower vertebral body to merge fully simultaneously, reaches the purpose of treatment.But by discovering of clinical effectiveness: after merged on preceding road, the sections adjacent with merging sections can produce Secondary cases regression and instability, caused original symptomatic recurrence or increased the weight of, and becoming influence the key factor that anterior approach is treated the cervical spondylosis late result.Because sections has obtained the stable of a kind of non-physiological state behind the fusion, has lost corresponding motion segment, cause the cervical vertebra total range of motion to reduce, the adjacent segment regression is accelerated, the fusion that has even need accept adjacent segment again.
Existing cervical intervertebral disc system is a kind of special device that can simulate the normal human subject intervertebral disc of cervical vertebra.When suffering from reasons such as cervical spondylosis or acute intervertebral disc protrusion of cervical vertebra disease as people and needing operative treatment; the intervertebral disc of pathological changes is with cut; the position of then artificial intervertebral disk being implanted original intervertebral disc replaces original intervertebral disc and exercises its function, can realize keeping motion segment, reduce the purpose that the regression of adjacent segment Secondary cases occurs.But the upper and lower soleplate of existing artificial intervertebral disk titanium alloy commonly used is made, and titanium alloy is not easy to be grown in the vertebral body of human body, comes off easily after causing the artificial intervertebral disk implant into body of long duration, and fastness is poor.
The utility model content
The purpose of this utility model is to overcome the defective that prior art exists, and the artificial intervertebral disk of fastness and good stability behind a kind of implant into body is provided.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of artificial intervertebral disk, comprise first soleplate and second soleplate that are oppositely arranged, described first soleplate is provided with spherical concave surface, described second soleplate is provided with spherical convex surface, described spherical concave surface and spherical convex surface are separately positioned on the opposite face of first soleplate and second soleplate and cooperate and contact, all be formed with on the back side mutually of described first soleplate and second soleplate be used for, the coarse structure of hypocentrum end face contact all is coated with hydroxyapatite coating layer on the back side mutually of described first soleplate and second soleplate.
Further, described second soleplate is provided with placing trough, is provided with spherical male member in this placing trough, and this sphere male member is the spherical male member of ultra-high molecular weight polyethylene.
Further, described coarse structure is arranged to be made of some concaveconvex structures.
Further, described first, second soleplate is a titanium alloy endplates.
Further, be provided with on the phase back side of described first, second soleplate and be used to hold the male member of taking that has through hole.
The beneficial effects of the utility model: fastness and good stability behind the implant into body, first soleplate has hydroxyapatite coating layer with the surface that second soleplate contacts with vertebral body, this coating helps the absorption and the growth of bone, and two soleplates are grown in the vertebral body of reply respectively, is not easy to come off.
Description of drawings
Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1.
Wherein: 1, first soleplate; 2, second soleplate; 21, spherical male member; 3, coarse structure; 4, hydroxyapatite coating layer; 5, male member.
The specific embodiment
A kind of artificial intervertebral disk as shown in Figure 1-Figure 3, comprise first soleplate 1 and second soleplate 2 that are oppositely arranged, described first soleplate 1 is provided with spherical concave surface, described second soleplate 2 is provided with placing trough, be provided with spherical male member 21 in this placing trough, the material of this sphere male member 21 is a ultra-high molecular weight polyethylene.Described spherical concave surface and spherical male member 21 are separately positioned on the opposite face of first soleplate 1 and second soleplate 2 and cooperate and contact, all be formed with on the phase back side of described first soleplate 1 and second soleplate 2 and be used for the coarse structure 3 that contacts with upper and lower vertebral body end face, this coarse structure 3 is made of some concaveconvex structures.All be coated with hydroxyapatite coating layer 4 on the back side mutually of described first soleplate 1 and second soleplate 2, this hydroxyapatite coating layer 4 is beneficial to the absorption and the growth of bone.
Described first, second soleplate 1,2 is made by the biocompatible materials that indispensable mechanical performance can be provided, and the representative materials that wherein can make soleplate is known to those skilled in the art, includes but not limited to titanium, titanium alloy.
Be provided with on the phase back side of described first, second soleplate 1,2 and be used to hold the male member of taking that has through hole 5, the medical worker implants artificial intervertebral disk between the upper and lower vertebral body with this male member 5 of tool holding.
Should be appreciated that specific embodiment described above only is used to explain this utility model, and be not used in qualification this utility model.Conspicuous variation of being extended out by spirit of the present utility model or change still are among the protection domain of the present utility model.
Claims (6)
1. artificial intervertebral disk, comprise first soleplate (1) and second soleplate (2) that are oppositely arranged, described first soleplate (1) is provided with spherical concave surface, described second soleplate (2) is provided with spherical convex surface, described spherical concave surface and spherical convex surface are separately positioned on the opposite face of first soleplate (1) and second soleplate (2) and cooperate and contact, all be formed with on the back side mutually of described first soleplate (1) and second soleplate (2) be used for, the coarse structure (3) of hypocentrum end face contact is characterized in that: all be coated with hydroxyapatite coating layer (4) on the back side mutually of described first soleplate (1) and second soleplate (2).
2. a kind of artificial intervertebral disk according to claim 1 is characterized in that: described second soleplate (2) is provided with placing trough, is provided with spherical male member (21) in this placing trough.
3. a kind of artificial intervertebral disk according to claim 2 is characterized in that: described spherical male member (21) is the spherical male member of ultra-high molecular weight polyethylene.
4. according to claim 1 or 2 or 3 described a kind of artificial intervertebral disks, it is characterized in that: described coarse structure (3) is arranged to be made of some concaveconvex structures.
5. according to claim 1 or 2 or 3 described a kind of artificial intervertebral disks, it is characterized in that: described first, second soleplate (1,2) is titanium alloy endplates.
6. according to claim 1 or 2 or 3 described a kind of artificial intervertebral disks, it is characterized in that: be provided with on the phase back side of described first, second soleplate (1,2) and be used to hold the male member of taking that has through hole (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200456105U CN201977964U (en) | 2011-02-24 | 2011-02-24 | Artificial intervertebral disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200456105U CN201977964U (en) | 2011-02-24 | 2011-02-24 | Artificial intervertebral disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201977964U true CN201977964U (en) | 2011-09-21 |
Family
ID=44605435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200456105U Expired - Lifetime CN201977964U (en) | 2011-02-24 | 2011-02-24 | Artificial intervertebral disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201977964U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055055A (en) * | 2015-08-12 | 2015-11-18 | 陈伟 | Bionic artificial vertebra with capacity of motion and capable of being implanted conveniently |
| CN105853031A (en) * | 2016-04-29 | 2016-08-17 | 西安交通大学第二附属医院 | Bionic lumbar vertebrae and intervertebral disc junction complex with dislocation prevention function |
| CN107374790A (en) * | 2017-08-18 | 2017-11-24 | 中国医科大学附属第医院 | A kind of porous soleplate formula cervical artificial disc prosthese |
-
2011
- 2011-02-24 CN CN2011200456105U patent/CN201977964U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055055A (en) * | 2015-08-12 | 2015-11-18 | 陈伟 | Bionic artificial vertebra with capacity of motion and capable of being implanted conveniently |
| CN105055055B (en) * | 2015-08-12 | 2017-03-15 | 陈伟 | A kind of biomimetic prosthetic centrum that with mobility and conveniently inserts |
| CN105853031A (en) * | 2016-04-29 | 2016-08-17 | 西安交通大学第二附属医院 | Bionic lumbar vertebrae and intervertebral disc junction complex with dislocation prevention function |
| CN107374790A (en) * | 2017-08-18 | 2017-11-24 | 中国医科大学附属第医院 | A kind of porous soleplate formula cervical artificial disc prosthese |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Co-patentee after: Trauson Medical Instrument (China) Company Limited Patentee after: West China Hospital of Sichuan University Address before: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Co-patentee before: Trauson Medical Instrument (Jiangsu) Co., Ltd. Patentee before: West China Hospital of Sichuan University |
|
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU ORTHMED MEDICAL INSTRUMENT CO., LTD. Free format text: FORMER OWNER: TRAUSON MEDICAL INSTRUMENT (CHINA) CO., LTD. Effective date: 20120109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120109 Address after: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Co-patentee after: Changzhou Orthmed Medical Instrument Co., Ltd. Patentee after: West China Hospital of Sichuan University Address before: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Co-patentee before: Trauson Medical Instrument (China) Company Limited Patentee before: West China Hospital of Sichuan University |
|
| ASS | Succession or assignment of patent right |
Owner name: TRAUSON MEDICAL INSTRUMENT (CHINA) CO., LTD. Free format text: FORMER OWNER: CHANGZHOU ORTHMED MEDICAL INSTRUMENT CO., LTD. Effective date: 20131206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131206 Address after: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Patentee after: West China Hospital of Sichuan University Patentee after: Trauson Medical Instrument (China) Company Limited Address before: 610041 Wuhou District, Chengdu, China, No. Guoxue lane, No. 37 Patentee before: West China Hospital of Sichuan University Patentee before: Changzhou Orthmed Medical Instrument Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |