CN201389076Y - Absorbable expansion bone rivet - Google Patents
Absorbable expansion bone rivet Download PDFInfo
- Publication number
- CN201389076Y CN201389076Y CN200920079495U CN200920079495U CN201389076Y CN 201389076 Y CN201389076 Y CN 201389076Y CN 200920079495 U CN200920079495 U CN 200920079495U CN 200920079495 U CN200920079495 U CN 200920079495U CN 201389076 Y CN201389076 Y CN 201389076Y
- Authority
- CN
- China
- Prior art keywords
- bolt
- tubulose
- staple portion
- spigot
- nail
- 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
Links
Images
Abstract
The utility model relates to an absorbable expansion bone rivet belonging to medical apparatus and instruments, in particular to a bone rivet used for fixing an object implanted into the bone. The bone rivet consists of a tubular nail part and a bolt part which are both made from poly Beta hydroxybutyrate material; one end of the tubular nail part is sheathed with an annular nail head, the other end thereof is provided with at least two dilation fissures, and the internal side wall of the end part thereof is provided with a convex clamp ring; one end of the bolt part is a columnar bolt body, and the other end thereof is a bolt cone, the diameter of the columnar bolt body is equal to the internal diameter of the convex clamp ring on the internal side wall of the cylindrical nail part, and the maximum diameter of the bolt cone is larger than the internal diameter of the tubular nail part and equal to the external diameter of the nail body. The columnar bolt body of the bolt part is arranged in the tubular nail part from the end provided with the convex clamp ring, and the bolt cone of the bolt part is exposed outside the tubular nail part. The bone rivet has simple structure, not easy fall-off after operation and easy absorption.
Description
Technical field
This utility model belongs to medical mechanical domain, and 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 purpose of this utility model is at above-mentioned deficiency, and providing a kind of can carry out effectively fixing and absorbable expansion bone rivet to bone graft, prosthesis, myofascial tissue.
The technical solution of the utility model 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.
This utility model 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 utility model;
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 (8)
1, absorbable expansion bone rivet is characterized in that: it is made up of tubulose staple portion (1) and spigot (2); 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 cylinder 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 absorbable expansion bone rivets, it is characterized in that: described bolt awl (2.2) is the spindle shape.
5, according to claim 1 or 2 or 3 described absorbable expansion bone rivets, it is characterized in that: described tubulose staple portion (1) and cylindricality spigot (2) are made by poly beta-hydroxybutyrate.
6, absorbable expansion bone rivet according to claim 4 is characterized in that: described tubulose staple portion (1) and cylindricality spigot (2) are made by poly beta-hydroxybutyrate.
7, absorbable expansion bone rivet according to claim 4 is characterized in that: described dilatation fissure (1.2) is equidistant four.
8, absorbable expansion bone rivet according to claim 6 is characterized in that: described dilatation fissure (1.2) is equidistant four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079495U CN201389076Y (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920079495U CN201389076Y (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201389076Y true CN201389076Y (en) | 2010-01-27 |
Family
ID=41595891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920079495U Expired - Lifetime CN201389076Y (en) | 2009-03-11 | 2009-03-11 | Absorbable expansion bone rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201389076Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502440B (en) * | 2009-03-11 | 2011-08-31 | 艾玉峰 | Absorbable expansion bone rivet |
-
2009
- 2009-03-11 CN CN200920079495U patent/CN201389076Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502440B (en) * | 2009-03-11 | 2011-08-31 | 艾玉峰 | Absorbable expansion bone rivet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201085677Y (en) | Hollow pressurization locking nail for femoral neck stem | |
| JP2008136876A5 (en) | ||
| WO2007086832A3 (en) | Surgical fasteners and related implant devices having bioabsorbable components | |
| CN201197743Y (en) | Anti-loose bone nail | |
| CN203138752U (en) | Biological type core decompression bar | |
| CN104095677A (en) | High-strength combined self-degrading expansion bone peg | |
| CN101690680B (en) | Expansive orthodontic anchorage implant | |
| CN101502440B (en) | Absorbable expansion bone rivet | |
| CN201389076Y (en) | Absorbable expansion bone rivet | |
| CN208725787U (en) | The assembly of bone nail has | |
| CN111407387A (en) | Screw assembly for bone fixation and bone fixation device | |
| CN204092165U (en) | High-strength combination formula is from degrading expansion bone nail | |
| CN201542734U (en) | bioactive bone screw | |
| CN213249621U (en) | Screw assembly for bone fixation and bone fixation device | |
| CN202397584U (en) | Degradable magnesium alloy orthopedic internal fixation interface screw | |
| CN205019150U (en) | Pressurization intramedullary nail | |
| CN109171921B (en) | Novel design and manufacture of bone nail easy to screw in | |
| CN105596076A (en) | Micro-motion locking screw | |
| CN105520778A (en) | Expansion bone nail | |
| CN201920852U (en) | Restoration transplanting needle | |
| KR20110005353A (en) | Implant fixture with bone cutting knife | |
| CN201353191Y (en) | Inner-arc diaphysis-type dynamic-stress bone-fracture fixation steel plate | |
| CN209916183U (en) | Broken nail extracting device for femoral intramedullary nail | |
| CN202654269U (en) | Ilium fixing piece with self-locking counter sunk and support platform applied to half pelvis prosthesis | |
| CN208435764U (en) | A kind of locking bone fracture plate device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100127 Effective date of abandoning: 20090311 |