CN2636843Y - Artificial intervertebral fusion body - Google Patents
Artificial intervertebral fusion body Download PDFInfo
- Publication number
- CN2636843Y CN2636843Y CNU032499299U CN03249929U CN2636843Y CN 2636843 Y CN2636843 Y CN 2636843Y CN U032499299 U CNU032499299 U CN U032499299U CN 03249929 U CN03249929 U CN 03249929U CN 2636843 Y CN2636843 Y CN 2636843Y
- Authority
- CN
- China
- Prior art keywords
- artificial intervertebral
- intervertebral fusion
- fusion body
- columnar structures
- section
- 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
-
- 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)
Abstract
The utility model relates to an artificial intervertebral fusant, which is a column-shaped structure body, the center part of the cross-section is provided with an axial through hole, and a plurality of holes which extend inward radially are distributed on the outer periphery of the column-shaped structure body. The intervertebral fusant is an ideal intervertebral repairing and substituting structure body, and the utility model has simple structure, easy implantation, convenient operation, good biocompatibility, high biological activity and more matching of the mechanics properties and the nature bones.
Description
Technical field
The utility model relates to a kind of artificial intervertebral fusion body of repairing alternative structure between vertebral body that can be used as.
Background technology
In the reparation of human body adjacent vertebral bodies or intervertebral disk injury, artificial intervertebral fusion body is to repair the alternative structure body between a kind of vertebral body commonly used.Notification number is that the Chinese patent file of CN 2419949Y discloses a kind of Invasive lumbar fusion device, and its structure is the form of a columar cellule, is covered with screw thread in its surface, also is furnished with porous at the cylinder upper and lower, and its two ends also have groove, and mounting is housed therebetween.A kind of movable screw-like Invasive lumbar fusion device is also disclosed in notification number is the Chinese patent literature of CN 2361245Y, its structure is made up of cylindric hollow elastic titanium alloy boxes and baskets and intermediary polyethylene vertebral pulp, the screw thread that has both sides to be interrupted on the outer tubular wall, the central authorities of discontinuities tube wall are provided with window, several interlaced otch are respectively arranged on the tube wall at window two ends, and make tube wall form " Z " shape spring structure by this otch; Intermediary polyethylene vertebral pulp then can be wedged in the boxes and baskets of elastic titanium alloy.The structure of these intervertebral fusion structures is relatively all comparatively complicated, and cost is higher, and operation technique is not too convenient, and the mechanics matching deficiency of itself and natural vertebral body bone, and biocompatibility is also undesirable, is difficult to the fusion that provides good, and long-term effect is relatively poor.
The utility model content
According to above-mentioned situation, this utility model will provide a kind of artificial intervertebral fusion body of improved form, and it is simple in structure that it is had, and the also operation of more convenient implant surgery and good biocompatibility, and biological activity height, mechanical property and natural bone such as more mate at advantage.
Artificial intervertebral fusion body of the present utility model is the structure of a column, in its kernel of section portion one axial through hole is arranged, and also scatters to be provided with some holes that inwardly stretch in the footpath of doing on the outer peripheral face of this columnar structures.Wherein, the axial pass-through holes in this columnar structures can help the growth of the resistances such as blood vessel, nerve in the human body self repair process, can also be used for drain, or fills in as bone cement, strengthens reinforcing material such as rod.The hole that inwardly stretch in the work footpath that distribution is provided with on the outer peripheral face of columnar structures, except that the growth that also can help the resistances such as blood vessel, nerve in the human body self repair process and help the fusion growth between this fusant material and human vertebrae, apparatus clamping in the time of also can being convenient to operation technique and/or the location when implanting etc.Therefore, the hole that inwardly stretch in said work footpath of scattering setting on the outer peripheral face of columnar structures both can be the blind hole form, also can be the through-hole form that is connected with the axial pass-through holes at center.
In the artificial intervertebral fusion body of said structure, generally can make the cross sectional shape of said this columnar structures be adopted as circle, or be adopted as polygon, particularly can be adopted as regular polygon as forms such as square, regular hexagon or octagons with more convenient.
Result of the test shows that in the artificial intervertebral fusion body of the above-mentioned form of this utility model, the axial length of said this columnar structures is to be adopted as 5～20 millimeters scope the bests.Further, the maximum radial distance that makes said this column structure body section is 10～60 millimeters, and the cross section of axial pass-through holes can be adopted as the through hole of forms such as circle or polygon, and its maximum radial distance is 2～15 millimeters comparatively ideals.In these comparatively ideal parameter areas, can distinguish according to actual needs separately and adopt, also can be adopted simultaneously.
Obviously, the structure of the artificial intervertebral fusion body of this utility model said structure form is very simple, manufacture conveniently, cost is low, cutting out when helping the clinical operation operation, and more convenient surgical doctor uses, and it is convenient to implant, good biocompatibility, the biological activity height, mechanical property and natural bone more mate.
According to foregoing,,, can also make modification, replacement or the change of other various ways according to the ordinary skill knowledge and the customary means of this area not breaking away under the above-mentioned basic fundamental thought of this utility model prerequisite.
Below in conjunction with the specific embodiment, foregoing of the present utility model is described in further detail again by the accompanying drawing illustrated embodiment.But this should be interpreted as that the scope of the above-mentioned theme of this utility model only limits to following example.All technology that is realized based on this utility model foregoing all belong to scope of the present utility model.
Description of drawings
Fig. 1 is the sketch map of a kind of structure of the artificial intervertebral fusion body of this utility model.
Fig. 1 is the sketch map of the another kind of structure of the artificial intervertebral fusion body of this utility model.
The specific embodiment
The artificial intervertebral fusion body of this utility model shown in Figure 1 is a cylindrical-shaped structure body 1 of being made by nano-apatite and polyamide compoiste material, and its cross section 2 is rounded, and length is 5～20 millimeters, outward through being 10～60 millimeters.It is 2～15 millimeters axial pass-through holes 3 that central part in its cross section 2 also has a diameter.On the outer peripheral face of cylindrical-shaped structure body 1, be scattered with a plurality of blind hole from side face to the center or through holes 4 of doing radially extension by.
Shown in Figure 2 is the version of the another kind of artificial intervertebral fusion body of this utility model.Be that with the only different of structure shown in Figure 1 the cross section 2 of this columnar structures 1 is shaped as the shape of octagon.
Claims (9)
1. artificial intervertebral fusion body is characterized in that being a columnar structures (1), in its kernel of section portion one axial through hole (3) is arranged, and scatters to be provided with some holes (4) that inwardly stretch in the footpath of doing on the outer peripheral face of columnar structures (1).
2. artificial intervertebral fusion body as claimed in claim 1 is characterized in that the cross section (2) of said this columnar structures (1) is shaped as circle.
3. artificial intervertebral fusion body as claimed in claim 1 is characterized in that the cross section (2) of said this columnar structures (1) is shaped as polygon.
4. artificial intervertebral fusion body as claimed in claim 3 is characterized in that the cross section (2) of said this columnar structures (1) is shaped as regular polygon.
5. artificial intervertebral fusion body as claimed in claim 4 is characterized in that the cross section (2) of said this columnar structures (1) is shaped as octagon.
6. artificial intervertebral fusion body as claimed in claim 1 is characterized in that on said this columnar structures (1) outer peripheral face scattering the hole (4) of the work footpath that is provided with inwardly stretching and is blind hole type structure.
7. artificial intervertebral fusion body as claimed in claim 1 is characterized in that on said this columnar structures (1) outer peripheral face scattering the through hole type structure of hole (4) for being connected with the axial pass-through holes (3) in the shape structure (1) that inwardly stretch in the work footpath that is provided with.
8. as the described artificial intervertebral fusion body of one of claim 1 to 7, the axial length that it is characterized in that said this columnar structures (1) is 5～20 millimeters.
9. as the described artificial intervertebral fusion body of one of claim 1 to 7, the maximum radial distance that it is characterized in that said this columnar structures (1) cross section (2) is 10～60 millimeters, and the maximum radial distance of axial pass-through holes (3) is 2～15 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032499299U CN2636843Y (en) | 2003-08-14 | 2003-08-14 | Artificial intervertebral fusion body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032499299U CN2636843Y (en) | 2003-08-14 | 2003-08-14 | Artificial intervertebral fusion body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2636843Y true CN2636843Y (en) | 2004-09-01 |
Family
ID=34293701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032499299U Expired - Lifetime CN2636843Y (en) | 2003-08-14 | 2003-08-14 | Artificial intervertebral fusion body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2636843Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
-
2003
- 2003-08-14 CN CNU032499299U patent/CN2636843Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104799923A (en) * | 2015-04-30 | 2015-07-29 | 中国人民解放军第二军医大学 | Strutting bone grafting instrument for compression fracture of vertebral body |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130814 Granted publication date: 20040901 |