CN202714915U - Bone-setting screw - Google Patents
Bone-setting screw Download PDFInfo
- Publication number
- CN202714915U CN202714915U CN 201220217226 CN201220217226U CN202714915U CN 202714915 U CN202714915 U CN 202714915U CN 201220217226 CN201220217226 CN 201220217226 CN 201220217226 U CN201220217226 U CN 201220217226U CN 202714915 U CN202714915 U CN 202714915U
- Authority
- CN
- China
- Prior art keywords
- screw
- shank
- bone
- thread
- screw shank
- 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
The utility model discloses a bone-setting screw which comprises a screw shank and a screw cap, wherein the screw shank consists of a screw shank root part and a screw shank front end; the diameter of the screw shank root part is greater than that of the screw shank front end; the screw shank root part is identical with the screw shank front end in screwing direction; and the screw pitch of a thread between the screw shank root part and the screw shank front end is gradually increased. According to the bone-setting screw disclosed by the utility model, a thread of the screw shank root part is combined with a thread hole on a bone-setting plate, so that the bone-setting plate screw and the bone-setting plate form a whole and further the phenomenon that the healing of fracture is influenced because the angle of the bone-setting screw offsets on the bone-setting plate due to stress is avoided; and according to the change of the screw pitch of the thread, the bone-setting screw can apply greater pressure on bones, the functions of tightening and pressurizing are achieved, the healing of the bones is promoted and the pains of patients are alleviated.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of bone screw.
Background technology
It is fixing often to need to utilize blade plate and bone screw that fracture site is implemented in bone surgery, previously used bone screw is after being fixed blade plate, the reasons such as motion owing to the patient, bone screw can produce slippage in the screwed hole of blade plate, the healing of impact fracture, this because bone screw and blade plate are to rely on pressure to combine after fixing, is not an integral body mainly; And existing bone screw all can only play fixing effect mostly, and can't realize the effect with two planes of disruption tension pressurization of knochenbruch.
The utility model content
Technical problem to be solved in the utility model is for above-mentioned the deficiencies in the prior art, and a kind of bone screw is provided, and it can be combined into an integral body with blade plate, and has the effect of good tension pressurization.
The technical scheme that this utility model adopts is: a kind of bone screw, comprise shank of screw and screw cap, described shank of screw is comprised of shank of screw root and shank of screw front end, the diameter of shank of screw root is greater than the diameter of shank of screw front end, the shank of screw root is identical with the thread rotary orientation of shank of screw front end, and the pitch of the screw thread from the shank of screw root to the shank of screw front end becomes large gradually.
As preferably, described shank of screw root to the screw thread of shank of screw front end is tapered thread from the coarse to fine.
The beneficial effects of the utility model are: this utility model is combined by the screwed hole of screw thread on blade plate of shank of screw root and is made the blade plate screw become an integral body with the blade plate white silk, so that bone screw can be because of not stressed and the skew of angle occurs at blade plate, the healing of impact fracture, and the variation of the pitch of screw thread, so that bone screw can be given the larger pressure of skeleton, play the effect of tension pressurization, promote the healing of skeleton, alleviate patient's misery.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, shank of screw; 2, screw cap; 3, shank of screw root; 4, shank of screw front end.
The specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments this utility model is described in further detail.
Embodiment: as shown in Figure 1, this utility model comprises shank of screw 1 and screw cap 2, described shank of screw 1 is comprised of shank of screw root 3 and shank of screw front end 4, the diameter of shank of screw root 3 is greater than the diameter of shank of screw front end 4, shank of screw root 3 is identical with the thread rotary orientation of shank of screw front end 4, and the pitch of the screw thread from shank of screw root 3 to shank of screw front end 4 becomes large gradually; Described shank of screw root 3 to the screw thread of shank of screw front end 4 is tapered thread from the coarse to fine.
This utility model is combined by the screwed hole of screw thread on blade plate of shank of screw root 3 and is made the blade plate screw become an integral body with the blade plate white silk, so that bone screw can be because of not stressed and the skew of angle occurs at blade plate, the healing of impact fracture, and the variation of the pitch of screw thread, so that bone screw can be given the larger pressure of skeleton, play the effect of tension pressurization, promote the healing of skeleton, alleviate patient's misery.
Claims (2)
1. bone screw, comprise shank of screw and screw cap, it is characterized in that: described shank of screw is comprised of shank of screw root and shank of screw front end, the diameter of shank of screw root is greater than the diameter of shank of screw front end, the shank of screw root is identical with the thread rotary orientation of shank of screw front end, and the pitch of the screw thread from the shank of screw root to the shank of screw front end becomes large gradually.
2. bone screw according to claim 1 is characterized in that: described shank of screw root to the screw thread of shank of screw front end is from the coarse to fine tapered thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217226 CN202714915U (en) | 2012-05-15 | 2012-05-15 | Bone-setting screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217226 CN202714915U (en) | 2012-05-15 | 2012-05-15 | Bone-setting screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202714915U true CN202714915U (en) | 2013-02-06 |
Family
ID=47616766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220217226 Expired - Fee Related CN202714915U (en) | 2012-05-15 | 2012-05-15 | Bone-setting screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202714915U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105559872A (en) * | 2014-10-31 | 2016-05-11 | 财团法人金属工业研究发展中心 | orthopedic implant |
| CN113367856A (en) * | 2021-05-22 | 2021-09-10 | 北京力达康科技有限公司 | Calcaneus prosthesis |
-
2012
- 2012-05-15 CN CN 201220217226 patent/CN202714915U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105559872A (en) * | 2014-10-31 | 2016-05-11 | 财团法人金属工业研究发展中心 | orthopedic implant |
| CN113367856A (en) * | 2021-05-22 | 2021-09-10 | 北京力达康科技有限公司 | Calcaneus prosthesis |
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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: 20130206 Termination date: 20130515 |