CN203506936U - Fusion device made of metal bone trabecula material - Google Patents
Fusion device made of metal bone trabecula material Download PDFInfo
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- CN203506936U CN203506936U CN201320369531.9U CN201320369531U CN203506936U CN 203506936 U CN203506936 U CN 203506936U CN 201320369531 U CN201320369531 U CN 201320369531U CN 203506936 U CN203506936 U CN 203506936U
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- fusion device
- bone trabecula
- metal bone
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Abstract
The utility model belongs to the field of medical instruments and particularly relates to a fusion device made of a metal bone trabecula material. The fusion device is characterized in that the fusion device is made of the metal bone trabecula material, the metal bone trabecula material is of a metal porous structure made of the seventy-third element, namely, tantalum, in the periodic table of elements through a special processing technology, and different from an artificial material made of titanium, the metal bone trabecula material will not cause any interference in imageological examinations like the MRI. A fusion device body is provided with a fusion hole which is through front and back, anti-slip teeth are arranged on the upper surface and the lower surface of the fusion device body respectively, and the fusion device body is further provided with a threaded hole. The fusion device made of the metal bone trabecula material has high in friction coefficient, and therefore instruments can be prevented from moving and being ejected out; the fusion device made of the metal bone trabecula material further is low in elasticity modulus, and therefore load sharing can be improved, and accordingly stress shielding can be minimized as much as possible.
Description
Technical field
This utility model belongs to medical mechanical domain, specifically a kind of metal bone trabecula material fusion device.
Background technology
On Orthopedic Clinical, spinal column degenerative disease is very common, comprising prolapse of lumbar intervertebral disc, lumbar degenerative slippage etc., can occur lumbago and nerve compression symptom, have a strong impact on patient's quality of life, often need surgery to remove compressing, recover spinal column physiological camber, ensure spinal stability.In recent years, fusion device has been widely used in the operative treatment of spinal column degenerative disease and wound etc.At present the material of fusion device is mainly two kinds of nondegradable metal (NiTi alloy, Ti6Al4V etc.) material and polyethers ether copper (PEEK), the former has good histocompatibility, but postoperative metal retains in vivo all the life, the puzzlement of permanent retention and the probability of second operation have been increased, simultaneously because elastic modulus difference can produce stress shielding to a certain degree, fused bone intensity and quality are had a certain impact, and can produce sedimentation to a certain degree, thereby easily form the disadvantage that interspinous support height is lost; The latter is nonmetal macromolecular material, and elastic modelling quantity and bone approach, and have extraordinary biocompatibility, x-ray thoroughly, and postoperative and bone fully merges.But comparatively speaking, polyethers ether copper (PEEK) process for machining is had relatively high expectations, relatively and metal material intensity some is low, after implant into body, there is certain potential safety hazard.
Metal bone trabecula is a kind of new material of repairing that substitutes for bone.In the past, because the sclerotin of human body self has obvious advantage at aspects such as intensity, elasticity and regeneration capacity, therefore when needs are repaired patient's sclerotin, doctor often gets bone at another position of the own health of patient, be called " autologous bone grafting ", but this can cause extra wound and face the problem of getting bony site wound healing.Certainly, if needed, also can use the skeleton of other people donations that store in bone bank, be called " allograph bone ".But although allograph bone has been passed through strict sterilization, they still exist infects and pathophorous risk.Implant bone material is that another is selected, but they also exist the problems such as healing time, intensity and elasticity deficiency.By the implant that metal bone trabecula is made, overcome the defect of bone-grafting material in the past, be called as " optimal material that is only second to sclerotin ".
Tantalum is the main component of metal bone trabecula implant, and its use in medical implant has long-term successful experience.From the 1940's, it is just used to, from skull steel plate, pacemaker to many body implants such as vascular clamps, show safe and reliable.Its corrosion resistance and biocompatibility are the strongest in all metals, nontoxic, harmless, and by human immune system, are not repelled.
Summary of the invention
The purpose of this utility model is in order to overcome defect and the deficiency of existing fusion device material aspect, the aspect metal bone trabecula material fusion devices very similar to real sclerotin such as a kind of outward appearance, elasticity and biological nature to be provided for doctor.
The technical scheme that this utility model adopts is:
A kind of metal bone trabecula material fusion device, it is characterized in that: it is made by metal bone trabecula material, metal bone trabecula is that No. 73 element tantalum passes through the metal porous structure that special processing technique is made in the periodic table of elements, the artificial material that it is made from titanium is different, to imaging examinations such as nuclear magnetic resonance, NMR (MRI), can not cause any interference.The bone trabecular intensity of metal is about the twice of nature spongy bone, and elasticity is different from other material, physics and mechanical characteristic that metal bone trabecula can the positive sclerotin of simulates real.Particularly its porosity is very high, and inner hole can reach 82%, is much higher than the porosity of nature cortical bone 8%.Therefore, metal bone trabecula has the sufficient space that allows sclerotin to grow into.
Metal bone trabecula material fusion device described in the utility model, is provided with the fusion hole that front and back connect in fusion device main body, as bone grafting, implant space.
Fusion device main body upper and lower surface of the present utility model is equipped with anti-slop serrations, with enhanced stability.
In fusion device main body of the present utility model, screwed hole is set, is convenient to and being connected of instrument.
Metal bone trabecula material fusion device described in the utility model, it has higher coefficient of friction to avoid apparatus to move and to discharge, and lower elastic modelling quantity to be to improve load balancing, thus minimum stress is covered as far as possible.Its mean porosities is up to 80%, and has consistent open-celled structure, and material is also designed to be similar to structure and the mechanical property of spongy bone, and for bone, inwardly growth and vascularization provide remarkable environment.Metal bone trabecula implant has intensity and the elasticity of nature sclerotin, and other artificial bones do not possess.
Accompanying drawing explanation
Fig. 1 is example structure schematic diagram of the present utility model.
Fig. 2 is the left view of Fig. 1.
The specific embodiment
Embodiment as shown in Figure 1, 2, a kind of metal bone trabecula material fusion device, fusion device main body 1 is made by metal bone trabecula material, metal bone trabecula material is that No. 73 element tantalum passes through the metal porous structure that special processing technique is made in the periodic table of elements, the artificial material that it is made from titanium is different, to imaging examinations such as nuclear magnetic resonance, NMR (MRI), can not cause any interference.The bone trabecular intensity of metal is about the twice of nature spongy bone, and elasticity is different from other material, physics and mechanical characteristic that metal bone trabecula can the positive sclerotin of simulates real.Particularly its porosity is very high, and inner hole can reach 82%, is much higher than the porosity of nature cortical bone 8%.Therefore, metal bone trabecula has the sufficient space that allows sclerotin to grow into.
Metal bone trabecula material fusion device described in the utility model, is provided with the fusion hole 2 that front and back connect in fusion device main body 1, as bone grafting, implant space.
Fusion device main body 1 upper and lower surface of the present utility model is equipped with anti-slop serrations 3, with enhanced stability.
In fusion device main body 1 of the present utility model, screwed hole 4 is set, is convenient to and being connected of instrument.
Claims (3)
1. a metal bone trabecula material fusion device, it is made by metal bone trabecula material, and metal bone trabecula material is the metal porous structure of being made by metal tantalum, it is characterized in that: in fusion device main body, be provided with the fusion hole that front and back connect.
2. metal bone trabecula material fusion device according to claim 1, is characterized in that: fusion device main body upper and lower surface is equipped with anti-slop serrations.
3. metal bone trabecula material fusion device according to claim 1, is characterized in that: in fusion device main body, be provided with screwed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369531.9U CN203506936U (en) | 2013-06-25 | 2013-06-25 | Fusion device made of metal bone trabecula material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320369531.9U CN203506936U (en) | 2013-06-25 | 2013-06-25 | Fusion device made of metal bone trabecula material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203506936U true CN203506936U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320369531.9U Expired - Lifetime CN203506936U (en) | 2013-06-25 | 2013-06-25 | Fusion device made of metal bone trabecula material |
Country Status (1)
| Country | Link |
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| CN (1) | CN203506936U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000674A (en) * | 2014-06-10 | 2014-08-27 | 张衣北 | Flexible trabecular bone structure interbody fusion cage |
| CN104706446A (en) * | 2015-03-24 | 2015-06-17 | 李鹏 | Bionic bone trabecula cervical vertebral fusion cage and manufacturing method thereof |
-
2013
- 2013-06-25 CN CN201320369531.9U patent/CN203506936U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104000674A (en) * | 2014-06-10 | 2014-08-27 | 张衣北 | Flexible trabecular bone structure interbody fusion cage |
| CN104706446A (en) * | 2015-03-24 | 2015-06-17 | 李鹏 | Bionic bone trabecula cervical vertebral fusion cage and manufacturing method thereof |
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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 |
Owner name: ZHEJIANG CANWELL MEDICAL CO., LTD. Free format text: FORMER NAME: KEHUI MEDICAL EQUIPMENT CO., LTD., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: 321016 Zhejiang Province, Jinhua city Wucheng District Xianghua Street No. 466 Patentee after: CANWELL MEDICAL Co.,Ltd. Address before: 321016 Zhejiang city in Jinhua Province, Xinhua Street No. 466 Patentee before: ZHEJIANG CANWELL MEDICAL Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |