CN206700223U - A kind of head-free pressurizing screw - Google Patents
A kind of head-free pressurizing screw Download PDFInfo
- Publication number
- CN206700223U CN206700223U CN201621374155.2U CN201621374155U CN206700223U CN 206700223 U CN206700223 U CN 206700223U CN 201621374155 U CN201621374155 U CN 201621374155U CN 206700223 U CN206700223 U CN 206700223U
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- CN
- China
- Prior art keywords
- screw
- head
- chamber
- pressurizing
- fixedly connected
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Abstract
The utility model discloses a kind of head-free pressurizing screw, including the first screw and the second screw, the bosom position of first screw is provided with screw chamber, the 3rd screw thread is fixedly connected with the inwall of the screw chamber, the outer surface of first screw is fixedly connected with the first screw thread, the top of first screw is provided with self tapping without silk head of screw, bosom position of the self tapping without silk head of screw is provided with hollow pressurizing chamber, the end of first screw is provided with flat mouth groove, the outer surface of second screw is fixedly connected with the second screw thread, the end of second screw is provided with cross recess.The head-free pressurizing screw is rational in infrastructure, it can be strengthened among actual use process by pressurizing chamber to the fixation in bone, it is difficult for drop-off, and internal another screw set can effectively play effect fixed again, eliminate screw head formation simultaneously, what the screw can be consolidated efficiently is fixed on bones, the problems such as tissue will not being caused to protrude.
Description
Technical field
Technical field of medical instruments is the utility model is related to, specially a kind of head-free pressurizing screw.
Background technology
Existing Medical screw is mostly typically plain screw structure, is improved at most on material, it is impossible to its structure
There is larger improvement, and because after by fixed titanium plate, some are to need to be retained in body for a long time, existing screw
Its fastness can not be completely secured, thus how effectively solve trip bolt practicality have become it is extremely urgent
The problem of.
Utility model content
The purpose of this utility model is to provide a kind of head-free pressurizing screw, asked with solve to propose in above-mentioned background technology
Topic.
To achieve the above object, the utility model provides following technical scheme：A kind of head-free pressurizing screw, including the first spiral shell
Nail and the second screw, the bosom position of first screw are provided with screw chamber, fixed on the inwall of the screw chamber to connect
The 3rd screw thread is connected to, the outer surface of first screw is fixedly connected with the first screw thread, and the top of first screw is provided with
Self tapping is provided with hollow pressurizing chamber, first screw without silk head of screw, bosom position of the self tapping without silk head of screw
End be provided with flat mouth groove, the outer surface of second screw is fixedly connected with the second screw thread, the end of second screw
It is provided with cross recess.
Preferably, the self tapping is arranged to two sections of spiral triangles around gap structure without silk head of screw.
Preferably, second screw is threadedly coupled with screw chamber.
Preferably, first screw is pyramidal structure, and second screw is column flush configuration.
Preferably, the length of second screw is identical with the groove depth of screw chamber.
Compared with prior art, the beneficial effects of the utility model are：The head-free pressurizing screw is rational in infrastructure, actually makes
It can be strengthened among process by pressurizing chamber to the fixation in bone, it is difficult for drop-off, and internal another screw set can be with
It is effective to play effect fixed again, while screw head formation is eliminated, what the screw can be consolidated efficiently is fixed on bone
Inside, the problems such as tissue will not being caused to protrude.
Brief description of the drawings
Fig. 1 is the utility model Structure explosion diagram；
Fig. 2 is the utility model the first screw sectional view；
Fig. 3 is the utility model the first screw rearview；
Fig. 4 is the utility model the second screw rearview；
Fig. 5 is the utility model assembling figure；
Fig. 6 is that the utility model assembles rearview.
In figure：1 first screw, 2 first screw threads, 3 self tappings are without silk head of screw, 4 second screws, 41 second screw threads, 42 crosses
Groove, 5 screw chambers, 51 the 3rd screw threads, 52 flat mouth grooves, 6 hollow pressurizing chambers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-6 are referred to, the utility model provides a kind of technical scheme：A kind of head-free pressurizing screw, including the first screw 1
It is identical with the groove depth of screw chamber 5 with the second screw 4, the length of second screw 4 so that the second screw 4 does not stay after shooting
Head of screw, more practical and convenient, first screw 1 is pyramidal structure, and second screw 4 is column flush configuration, plays and matches somebody with somebody
The effect being connected is closed, while taper is shot more firmly, second screw 4 is threadedly coupled with screw chamber 5, secondary fixation,
Efficiently fixed, the bosom position of first screw 1 is provided with screw chamber 5, is fixedly connected on the inwall of the screw chamber 5
There is the 3rd screw thread 51, the outer surface of first screw 1 is fixedly connected with the first screw thread 2, and the top of first screw 1 is set
There is self tapping without silk head of screw 3, the self tapping is arranged to two sections of spiral triangles around gap structure without silk head of screw 3, efficiently solid
It is fixed, eliminate it is traditional designed from tap holder, ensure that embedded stability, bosom position of the self tapping without silk head of screw 3
Install and be equipped with hollow pressurizing chamber 6, the end of first screw 1 is provided with flat mouth groove 52, and the outer surface of second screw 4 is consolidated
Surely the second screw thread 41 is connected with, the end of second screw 4 is provided with cross recess 42.
Operation principle：In use, the first screw 1 first is shot into bones, self tapping can be when shooting without silk head of screw 3
There is provided it is more stable shoot condition, it is and difficult for drop-off, while internal hollow pressurizing chamber 6 can be when the first screw 1 is shot
Top forms closed atmospheric pressure cavity so that there is outside extruding force inside, makes its difficult for drop-off, leads to after the first screw 1 is shot
Cross the second screw 4 to shoot again, inward force is provided for the first screw 1 so that fixation is more firm, while the screw is without a head
Design, can be embedded to bones, fixed for fix bone and provide effective solution method.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of head-free pressurizing screw, including the first screw (1) and the second screw (4), it is characterised in that：First screw
(1) bosom position is provided with screw chamber (5), and the 3rd screw thread (51) is fixedly connected with the inwall of the screw chamber (5),
The outer surface of first screw (1) is fixedly connected with the first screw thread (2), and the top of first screw (1) is provided with self tapping
Without silk head of screw (3), bosom position of the self tapping without silk head of screw (3) is provided with hollow pressurizing chamber (6), and described first
The end of screw (1) is provided with flat mouth groove (52), and the outer surface of second screw (4) is fixedly connected with the second screw thread (41),
The end of second screw (4) is provided with cross recess (42).
A kind of 2. head-free pressurizing screw according to claim 1, it is characterised in that：The self tapping is set without silk head of screw (3)
Two sections of spiral triangles are set to around gap structure.
A kind of 3. head-free pressurizing screw according to claim 1, it is characterised in that：Second screw (4) and screw chamber
(5) it is threadedly coupled.
A kind of 4. head-free pressurizing screw according to claim 1, it is characterised in that：First screw (1) is taper knot
Structure, second screw (4) are column flush configuration.
A kind of 5. head-free pressurizing screw according to claim 1, it is characterised in that：The length of second screw (4) and
The groove depth of screw chamber (5) is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374155.2U CN206700223U (en) | 2016-12-14 | 2016-12-14 | A kind of head-free pressurizing screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621374155.2U CN206700223U (en) | 2016-12-14 | 2016-12-14 | A kind of head-free pressurizing screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206700223U true CN206700223U (en) | 2017-12-05 |
Family
ID=60472066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621374155.2U Expired - Fee Related CN206700223U (en) | 2016-12-14 | 2016-12-14 | A kind of head-free pressurizing screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206700223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115120323A (en) * | 2021-03-26 | 2022-09-30 | 健宝生技股份有限公司 | Bone locking system and method |
-
2016
- 2016-12-14 CN CN201621374155.2U patent/CN206700223U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115120323A (en) * | 2021-03-26 | 2022-09-30 | 健宝生技股份有限公司 | Bone locking system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190201 Address after: 300 000 north of Guotai Road, Daqichang Town, Wuqing District, Tianjin Patentee after: Tianjin Kanger Medical Devices Co., Ltd. Address before: 301700 North of Guotai Road, Daqichang Town, Wuqing District, Tianjin Patentee before: Tianjin Kanglier Biotechnology Co., Ltd. |
|
| 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: 20171205 Termination date: 20191214 |