CN101502440B - Absorbable expansion bone rivet - Google Patents
Absorbable expansion bone rivet Download PDFInfo
- Publication number
- CN101502440B CN101502440B CN200910058564XA CN200910058564A CN101502440B CN 101502440 B CN101502440 B CN 101502440B CN 200910058564X A CN200910058564X A CN 200910058564XA CN 200910058564 A CN200910058564 A CN 200910058564A CN 101502440 B CN101502440 B CN 101502440B
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- CN
- China
- Prior art keywords
- tubulose
- staple portion
- spigot
- plug
- absorbable
- 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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Abstract
An absorbable swelling bone rivet belongs to medical appliances, in particular to a bone rivet used for fixing orthopedics implants. The bone rivet is composed of a tubular pin part and a plug part, which are made of beta-hydroxybutyrate materials; one end of the tubular pin part is sheathed with a ring-shaped pin head; the other end of the tubular pin part is provided with at least two swelling fissures and the inner side wall of the end is provided with a projection clasp; one end of the plug part is provided with a cylinder-shaped plug body and the other end thereof is provided with a plug cone; the diameter of the cylinder-shaped plug body is the same as the inside diameter of the projection clasp on the inner side wall of the cylindrical pin part; the maximum diameter of the plug cone is larger than the inside diameter of the tubular pin part and is equal to the outside diameter of the pin body. The cylinder-shaped plug body on the plug part is positioned in the tubular pin part from one end of the projection clasp; the plug cone on the plug part is exposed out of the tubular pin part. The bone rivet is simple in structure and absorbable and is not easy to fall off after operation.
Description
Technical field
The invention belongs to medical mechanical domain, it is absorbable to be specifically related to a kind of cranio-facial surgery, cosmetic surgery, orthopaedics implant, plays the bone rivet of fixation.
Background technology
The screw that the modern medicine orthopaedics implant generally adopts higher titanium alloy of elastic modelling quantity and stainless steel and other metal materials to make is fixed, the screw that perhaps uses Poly-L-lactic acid and polyglycolic acid material to make is fixed, mainly be to be connected with contact surface by screw thread, it connects the less and Absorption of bone under stress of face, drive screw when using during operating cost, difficulty, often can cause fracturing the loosening of internal fixation or come off, especially spongy bone is more difficult fixing.And the screw that metal material is made does not absorb to perform the operation once more and takes out or deposit in vivo as foreign body throughout one's life.
Summary of the invention
The objective of the invention is at above-mentioned deficiency, providing a kind of can carry out effectively fixing and absorbable expansion bone rivet to bone graft, prosthesis, myofascial tissue.
Technical scheme of the present invention is:
Absorbable expansion bone rivet, it is made up of tubulose staple portion 1 and spigot 2, and tubulose staple portion 1 and cylindricality spigot 2 are made by poly beta-hydroxybutyrate;
One end of described tubulose staple portion 1 is arranged with the annular head of a nail 1.1, and the other end has at least two dilatation fissures 1.2, and this medial wall, end is provided with protrudes snap ring 1.3; Equidistantly be provided with four in that this end is general.
One end of described spigot 2 is a cylindricality key 2.1, the other end is that bolt awl 2.2 is the spindle shape, the diameter of cylindricality key 2.1 is identical with the internal diameter of cylinder staple portion 1 medial wall protrusion snap ring 1.3, and the maximum gauge of bolt awl 2.2 equates with the external diameter of nail portion greater than the internal diameter of tubulose staple portion 1.
The cylindricality key 2.1 of described spigot 2 places in the tubulose staple portion 1 from an end of the snap ring 1.3 that is provided with protrusion, and the bolt of spigot 2 awl 2.2 is exposed at outside the tubulose staple portion 1.
Above-mentioned absorbable expansion bone rivet, under the effect of special riveting gun, the bolt awl 2.2 of spigot 2 is pressed in the pipe of tubulose staple portion 1, because the diameter of bolt awl 2.2 is greater than the internal diameter of tubulose staple portion 1, make dilatation fissure 1.2 ends expand, this end riveting is gone in the hole that body bone tissue accomplishes fluently, with regard to difficult drop-off, and spigot 2 makes tubulose staple portion 1 and spigot 2 also can not come off under the effect of protruding snap ring 1.3.Because the material that described absorbable expansion bone rivet uses is a poly beta-hydroxybutyrate, thereby be convenient to the tissue absorption, become the real osseous tissue of human body substantially.
The present invention adopts the poly beta-hydroxybutyrate material, and simple in structure, postoperative difficult drop-off and easily absorption, and this rivet is to use can absorb green material, the rivet of self-expanding at once of adjustable soak time.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is that Figure 1A-A is to cutaway view;
1 is tubulose staple portion, the 2nd among the figure, spigot, the 1.1st, and the annular head of a nail, the 1.2nd, dilatation fissure, the 1.3rd is protruded snap ring, the 2.1st, cylindricality key, the 2.2nd, bolt awl.
The specific embodiment
As shown in Figure 1 and Figure 2, absorbable expansion bone rivet, it is made up of tubulose staple portion 1 and spigot 2, and tubulose staple portion 1 and cylindricality spigot 2 are made by absorbable material poly beta-hydroxybutyrate (PHB);
One end of described tubulose staple portion 1 is arranged with the annular head of a nail 1.1, and the other end has two dilatation fissures 1.2, and this edge, medial wall, end is provided with and protrudes snap ring 1.3;
One end of described spigot 2 is a cylindricality key 2.1, the other end is that bolt awl 2.2 is the spindle shape, the diameter of cylindricality key 2.1 is identical with the internal diameter that snap ring 1.3 is protruded in cylinder staple portion 1 medial wall, and the maximum gauge of bolt awl 2.2 is greater than the internal diameter of tubulose staple portion 1, equates with nail portion external diameter.
The cylindricality key 2.1 of described spigot 2 places in the tubulose staple portion 1 from an end of the snap ring 1.3 that is provided with protrusion, and the bolt of spigot 2 awl 2.2 is exposed at outside the tubulose staple portion 1.
Absorbable expansion bone rivet, under the effect of special riveting gun, the bolt awl 2.2 of spigot 2 is pressed in the pipe of tubulose staple portion 1, because the diameter of bolt awl 2.2 is greater than the internal diameter of tubulose staple portion 1, make dilatation fissure 1.2 ends expand, in this end implant into body osseous tissue, difficult drop-off, and spigot 2 makes tubulose staple portion 1 and spigot 2 also can not come off under the effect of protruding snap ring 1.3.Because the material that described absorbable expansion bone rivet uses is a poly beta-hydroxybutyrate, thereby is convenient to the tissue degraded and absorbed, this was substituted the nail body by the real osseous tissue of human body after 2 years gradually.
As shown in Figure 1 and Figure 2, compare with embodiment 1, difference is that the other end of tubulose staple portion 1 has four dilatation fissures 1.2.
Claims (5)
1. absorbable expansion bone rivet, it is characterized in that: it is made up of tubulose staple portion (1) and spigot (2), and tubulose staple portion (1) and cylindricality spigot (2) are made by poly beta-hydroxybutyrate;
One end of described tubulose staple portion (1) is arranged with the annular head of a nail (1.1), and the other end has at least two dilatation fissures (1.2), and this medial wall, end is provided with protrudes snap ring (1.3);
One end of described spigot (2) is cylindricality key (2.1), the other end is a bolt awl (2.2), the diameter of cylindricality key (2.1) is identical with the internal diameter of tubulose staple portion (1) medial wall protrusion snap ring (1.3), and the maximum gauge of bolt awl (2.2) is greater than the internal diameter of tubulose staple portion (1);
The cylindricality key (2.1) of described spigot (2) places in the tubulose staple portion (1) from an end of the snap ring (1.3) that is provided with protrusion, and the bolt of spigot (2) awl (2.2) is exposed at outside the tubulose staple portion (1).
2. absorbable expansion bone rivet according to claim 1 is characterized in that: described protrusion snap ring (1.3) is located at this edge, medial wall, end.
3. absorbable expansion bone rivet according to claim 1 is characterized in that: the maximum gauge of described bolt awl (2.2) equals the external diameter of tubulose staple portion (1);
4. according to claim 1 or 2 or 3 described absorption expansion bone rivets, it is characterized in that: described bolt awl (2.2) is the spindle shape.
5. absorbable expansion bone rivet according to claim 4 is characterized in that: described dilatation fissure (1.2) is equidistant four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058564XA CN101502440B (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910058564XA CN101502440B (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502440A CN101502440A (en) | 2009-08-12 |
| CN101502440B true CN101502440B (en) | 2011-08-31 |
Family
ID=40974915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910058564XA Expired - Fee Related CN101502440B (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101502440B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109367496A (en) * | 2017-08-07 | 2019-02-22 | 郑州宇通客车股份有限公司 | A kind of bale of pipeline fixed structure and the vehicle using the bale of pipeline fixed structure |
| CN109185303A (en) * | 2018-11-16 | 2019-01-11 | 常州华森医疗器械有限公司 | A kind of absorbable pulling rivet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211219U (en) * | 1987-09-24 | 1988-05-25 | 王慈庆 | Expansion type bone nail |
| WO1995031941A1 (en) * | 1994-05-25 | 1995-11-30 | American Cyanamid Company | Vertebral fusion system with expandable anchor |
| CN2647255Y (en) * | 2003-07-17 | 2004-10-13 | 雷伟 | Medical expansion type pediculus arcus vertebrac screw |
| CN2756165Y (en) * | 2004-12-20 | 2006-02-08 | 李建 | Internal screw structure bone bolt |
| CN2774416Y (en) * | 2005-03-28 | 2006-04-26 | 王秋霞 | Expansion screw |
| CN201389076Y (en) * | 2009-03-11 | 2010-01-27 | 艾玉峰 | Absorbable expansion bone rivet |
-
2009
- 2009-03-11 CN CN200910058564XA patent/CN101502440B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87211219U (en) * | 1987-09-24 | 1988-05-25 | 王慈庆 | Expansion type bone nail |
| WO1995031941A1 (en) * | 1994-05-25 | 1995-11-30 | American Cyanamid Company | Vertebral fusion system with expandable anchor |
| CN2647255Y (en) * | 2003-07-17 | 2004-10-13 | 雷伟 | Medical expansion type pediculus arcus vertebrac screw |
| CN2756165Y (en) * | 2004-12-20 | 2006-02-08 | 李建 | Internal screw structure bone bolt |
| CN2774416Y (en) * | 2005-03-28 | 2006-04-26 | 王秋霞 | Expansion screw |
| CN201389076Y (en) * | 2009-03-11 | 2010-01-27 | 艾玉峰 | Absorbable expansion bone rivet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101502440A (en) | 2009-08-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20200311 |