CN104887304A - Absorbable screw with lateral holes - Google Patents
Absorbable screw with lateral holes Download PDFInfo
- Publication number
- CN104887304A CN104887304A CN201510223604.7A CN201510223604A CN104887304A CN 104887304 A CN104887304 A CN 104887304A CN 201510223604 A CN201510223604 A CN 201510223604A CN 104887304 A CN104887304 A CN 104887304A
- Authority
- CN
- China
- Prior art keywords
- screw
- rivet nut
- side opening
- lateral holes
- interference screw
- 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.)
- Pending
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- Surgical Instruments (AREA)
Abstract
The invention discloses an absorbable screw with lateral holes. The absorbable screw with the lateral holes comprises a screw head and a screw body, wherein the upper portion of the screw body is cylindrical, and the lower portion of the screw body is conical; the screw head is fixed to the upper end of the screw body; a thread is arranged on the outer circle of the screw body from bottom to top; the two rows of lateral holes are distributed in the screw body, evenly arranged and communicated in a one-to-one correspondence mode. In this way, the sclerotin is promoted to grow into the screw, and the screw is prevented from sliding off in the early period and can accelerate fracture healing in the later period. The absorbable screw with the lateral holes is simple in structure and convenient to use.
Description
Technical field
The present invention relates to bioabsorbable interference screw field, particularly relate to a kind of band side opening bioabsorbable interference screw.
Background technology
At present, existing bioabsorbable interference screw is made by absorbable material, has good biocompatibility, and implant non-toxic reaction; Bioabsorbable interference screw is general, and namely the 3-6 month can be biodegradable into water and carbon dioxide in vivo, but fractures the 3-6 month and when not healing, refracture easily occurs and cause Endodontic failure; The hold of bioabsorbable interference screw and resisting pull out forces are all poor, are particularly applied to sufferers of osteoporosis face, easily screw slippage occur, the complication such as displacement fracture.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of band side opening bioabsorbable interference screw, can promote that sclerotin is grown in screw, can prevent screw slippage in early days, have the effect of accelerating bone healing late period; Band side opening bioabsorbable interference screw structure is simple, easy to use.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of band side opening bioabsorbable interference screw, comprising: the head of a nail and rivet nut; Described rivet nut top is cylindrical, and rivet nut bottom conically; The described head of a nail is fixed on the upper end of described rivet nut; Described rivet nut outer ring is upwards provided with thread from bottom; Described rivet nut is distributed with two row's side openings, and two row's side openings are evenly arranged, and two row's side opening one_to_one corresponding are interconnected.
Preferably, described head of a nail upper surface is provided with cross groove.
Preferably, described thread accounts for 60% ~ 80% of rivet nut length; At a distance of 4 ~ 5mm between described side opening.
The invention has the beneficial effects as follows: the present invention can promote that sclerotin is grown in screw, can prevent screw slippage in early days, has the effect of accelerating bone healing late period.
Accompanying drawing explanation
Fig. 1 is a kind of perspective view with side opening bioabsorbable interference screw one preferred embodiment of the present invention;
Fig. 2 is a kind of structural representation axially analysed and observe along side opening with side opening bioabsorbable interference screw;
In accompanying drawing, the labelling of each parts is as follows: 1, the head of a nail; 2, rivet nut; 3, thread; 4, side opening.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of band side opening bioabsorbable interference screw, comprising: the head of a nail 1 and rivet nut 2; Described rivet nut 2 top is cylindrical, and the location of being with side opening bioabsorbable interference screw conically, is convenient in rivet nut 2 bottom; The described head of a nail 1 is fixed on the upper end of described rivet nut 2, and the head of a nail 1 upper surface is provided with cross groove, can rotating band side opening bioabsorbable interference screw easily; Described rivet nut 2 outer ring is upwards provided with thread 3 from bottom, is convenient to band side opening bioabsorbable interference screw to screw in fracture; Described rivet nut 2 is distributed with two row's side openings 4, two row side openings 4 and evenly arranges, and two row's side opening 4 one_to_one corresponding are interconnected, and can promote that sclerotin is grown in band side opening bioabsorbable interference screw, can prevent screw slippage in early days, late period can accelerating bone healing.Described thread 3 accounts for 60% ~ 80% of rivet nut length; At a distance of 4 ~ 5mm between described side opening 4.
The present invention can promote that sclerotin is grown in screw, can prevent screw slippage in early days, has the effect of accelerating bone healing late period; Band side opening bioabsorbable interference screw structure is simple, easy to use.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. be with a side opening bioabsorbable interference screw, it is characterized in that, comprising: the head of a nail and rivet nut; Described rivet nut top is cylindrical, and rivet nut bottom conically; The described head of a nail is fixed on the upper end of described rivet nut; Described rivet nut outer ring is upwards provided with thread from bottom; Described rivet nut is distributed with two row's side openings, and two row's side openings are evenly arranged, and two row's side opening one_to_one corresponding are interconnected.
2. one band side opening bioabsorbable interference screw according to claim 1, is characterized in that: described head of a nail upper surface is provided with cross groove.
3. one band side opening bioabsorbable interference screw according to claim 1, is characterized in that: described thread accounts for 60% ~ 80% of rivet nut length; At a distance of 4 ~ 5mm between described side opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223604.7A CN104887304A (en) | 2015-05-05 | 2015-05-05 | Absorbable screw with lateral holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510223604.7A CN104887304A (en) | 2015-05-05 | 2015-05-05 | Absorbable screw with lateral holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104887304A true CN104887304A (en) | 2015-09-09 |
Family
ID=54020573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510223604.7A Pending CN104887304A (en) | 2015-05-05 | 2015-05-05 | Absorbable screw with lateral holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104887304A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420480A (en) * | 2018-05-22 | 2018-08-21 | 谭洪波 | A kind of cartilage and soft tissue fixation devices |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095643U (en) * | 1990-08-20 | 1992-02-12 | 解放军九七医院 | Multi-hole inner fixing screw |
| US20010007072A1 (en) * | 1998-08-21 | 2001-07-05 | Beatrice Steiner | Self-cutting, hollow-cylindrical bone anchoring assembly |
| CN202458649U (en) * | 2011-12-19 | 2012-10-03 | 北京爱康宜诚医疗器材股份有限公司 | Fusion type screw capable of being fixed in spine |
| CN104224303A (en) * | 2009-12-03 | 2014-12-24 | 比德尔曼技术有限责任两合公司 | Bone screw |
| CN204765884U (en) * | 2015-05-05 | 2015-11-18 | 苏州瑞华医院有限公司 | Take side opening can absorb screw |
-
2015
- 2015-05-05 CN CN201510223604.7A patent/CN104887304A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2095643U (en) * | 1990-08-20 | 1992-02-12 | 解放军九七医院 | Multi-hole inner fixing screw |
| US20010007072A1 (en) * | 1998-08-21 | 2001-07-05 | Beatrice Steiner | Self-cutting, hollow-cylindrical bone anchoring assembly |
| CN104224303A (en) * | 2009-12-03 | 2014-12-24 | 比德尔曼技术有限责任两合公司 | Bone screw |
| CN202458649U (en) * | 2011-12-19 | 2012-10-03 | 北京爱康宜诚医疗器材股份有限公司 | Fusion type screw capable of being fixed in spine |
| CN204765884U (en) * | 2015-05-05 | 2015-11-18 | 苏州瑞华医院有限公司 | Take side opening can absorb screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108420480A (en) * | 2018-05-22 | 2018-08-21 | 谭洪波 | A kind of cartilage and soft tissue fixation devices |
| CN108420480B (en) * | 2018-05-22 | 2024-05-10 | 谭洪波 | Cartilage and soft tissue fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150909 |