CN201591618U - Medical bone screw - Google Patents
Medical bone screw Download PDFInfo
- Publication number
- CN201591618U CN201591618U CN2010200155955U CN201020015595U CN201591618U CN 201591618 U CN201591618 U CN 201591618U CN 2010200155955 U CN2010200155955 U CN 2010200155955U CN 201020015595 U CN201020015595 U CN 201020015595U CN 201591618 U CN201591618 U CN 201591618U
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- CN
- China
- Prior art keywords
- bone
- screw rod
- screw
- hole
- groove
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- 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
The utility model discloses a medical bone screw which comprises a screw cap and a screw rod, wherein the screw rod is provided with threads; the screw cap and the screw rod are provided with longitudinal holes which penetrate through the screw cap and the screw rod along the axis; a groove is arranged on the threads; and the groove is provided with a through hole which is communicated with the longitudinal hole. When the utility model is used by patients with osteoporosis, bone cement can be poured into bone tissues through the longitudinal hole, the bone cement penetrates into the bone tissues of the patent through the through hole and the groove, and the bone screw is fixed by the bone cement in the bone tissues and the bone cement accumulated in the bone screw, therefore the firmness of the bone screw is enhanced, the steel plate can be effectively fixed for a long term, and the bone can be favorable to cure.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular to the synthetism nail that uses in a kind of fracture operation process.
Background technology
For the comparatively serious patient of fracture, hospital generally all can take to utilize blade plate and synthetism nail that patient's fracture is fixed, and the synthetism nail is the inside bone that need squeeze into the patient when adopting this method, to guarantee the good stationarity of blade plate.But existing synthetism nail surface is smoother, if patient's sclerotin is tightr, firm steel plate is fixed of existing synthetism nail meeting, if but patient's sclerotin is more loose, this ganoid synthetism nail just can not be combined closely with patient's bone, be easy to occur becoming flexible after using a period of time, make steel plate fixing insecure, thereby influence the healing of bone,, generally can take the loose phenomenon of the method change osseous tissue of injection bone cement in patient's osseous tissue at above this situation, strengthen the stationarity of synthetism nail, it is time-consuming that but the existing method of injection bone cement is all relatively required great effort, and makes operating time longer, uses inconvenient.
The utility model content
Technical problem to be solved in the utility model provides a kind of good fixing effect, medical synthetism nail simple in structure.
For solving the problems of the technologies described above, the technical solution of the utility model is: medical synthetism nail, comprise nut and screwed screw rod, described nut and screw rod are provided with vertical hole of running through described nut and screw rod along axis, described screw thread is provided with groove, is provided with the through hole that communicates with described vertical hole in the described groove.
As a kind of improvement, the joint face between described nut and the screw rod is set to the joint face of arcuate structure.
After having adopted technique scheme, medical synthetism nail comprises nut and screwed screw rod, and described nut and screw rod are provided with vertical hole of running through described nut and screw rod along axis, described screw thread is provided with groove, is provided with the through hole that communicates with described vertical hole in the described groove.The beneficial effect that this utility model is obtained is: when the relatively more loose patient of sclerotin uses, can in osseous tissue, pour into bone cement by vertical hole, bone cement is penetrated in patient's the osseous tissue by through hole and groove, bone cement in the osseous tissue and accumulating at the inner bone cement of synthetism nail fixing synthetism nail together, the fastness of synthetism nail is improved, extended immobilization is lived steel plate more effectively, helps the healing of bone.
Description of drawings
Accompanying drawing is the structural representation of this utility model embodiment.
The specific embodiment
As shown in drawings, medical synthetism nail, comprise nut 1 and be threaded 3 screw rod 2, joint face between described nut 1 and the screw rod 2 is set to the joint face of arcuate structure, curved surfaces combines smoother with patient's muscle, and also bigger with the contact surface of patient's muscle, make the patient aprowl can be too not sharp and do not feel well should because of the nut edge of synthetism nail.
Described nut 1 and screw rod 2 are provided with vertical hole 4 of running through described nut 1 and screw rod 2 along axis, described screw thread 3 is provided with groove 5, be provided with the through hole 6 that communicates with described vertical hole 4 in the described groove 5, bone cement pours into from the vertical hole 4 on the nut 1, spread downwards along screw rod 2 then, be diffused in groove 5 and screw rod 2 osseous tissue in addition by the through hole on the screw thread 36 again, improve osseous tissue, make the synthetism nail fixed more firm by the bone cement that pours into.
Pour in the present embodiment after the bone cement, by osseous tissue, bone cement and accumulate, make steel plate fixing more firm at through hole, groove and the vertical fixing synthetism nail together of the bone cement in the hole.
Claims (2)
1. medical synthetism nail, comprise nut and screwed screw rod, it is characterized in that: described nut and screw rod are provided with vertical hole of running through described nut and screw rod along axis, and described screw thread is provided with groove, are provided with the through hole that communicates with described vertical hole in the described groove.
2. medical synthetism nail as claimed in claim 1, it is characterized in that: the joint face between described nut and the screw rod is set to the joint face of arcuate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200155955U CN201591618U (en) | 2010-01-18 | 2010-01-18 | Medical bone screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200155955U CN201591618U (en) | 2010-01-18 | 2010-01-18 | Medical bone screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201591618U true CN201591618U (en) | 2010-09-29 |
Family
ID=42773680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200155955U Expired - Fee Related CN201591618U (en) | 2010-01-18 | 2010-01-18 | Medical bone screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201591618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852950A (en) * | 2016-04-19 | 2016-08-17 | 青岛大学附属医院 | Hollow screw structure and usage thereof |
| CN117653303A (en) * | 2023-12-15 | 2024-03-08 | 中国人民解放军总医院第四医学中心 | Internal fixing and reinforcing device for femur neck fracture triangle |
-
2010
- 2010-01-18 CN CN2010200155955U patent/CN201591618U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105852950A (en) * | 2016-04-19 | 2016-08-17 | 青岛大学附属医院 | Hollow screw structure and usage thereof |
| CN105852950B (en) * | 2016-04-19 | 2018-09-14 | 青岛大学附属医院 | A kind of hollow screw structure and its application method |
| CN117653303A (en) * | 2023-12-15 | 2024-03-08 | 中国人民解放军总医院第四医学中心 | Internal fixing and reinforcing device for femur neck fracture triangle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20110118 |