CN206414333U - A kind of multiway fastens bone screws - Google Patents
A kind of multiway fastens bone screws Download PDFInfo
- Publication number
- CN206414333U CN206414333U CN201621026924.XU CN201621026924U CN206414333U CN 206414333 U CN206414333 U CN 206414333U CN 201621026924 U CN201621026924 U CN 201621026924U CN 206414333 U CN206414333 U CN 206414333U
- Authority
- CN
- China
- Prior art keywords
- spiral shell
- shell pin
- multiway
- bone screws
- fixed cover
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a kind of multiway and fastens bone screws, it is made up of nail body (1) and fixed cover (2), it is characterized in that, the nail body is made up of spiral shell pin (11) and nut (12) from top to bottom, and spiral shell pin (11) number is 4 10；Contain cavity (21) in fixed cover (2) the axle center, the structure of the spiral shell pin (11) is from top to bottom to be arranged in parallel or each spiral shell pin is progressively drawn close to screw central axis at an angle, and the spiral shell pin (11) is cylindrical or up big and down small reverse frustoconic；Nut (12) edge is provided with boss (14), and multiway of the present utility model, which fastens bone screws and expanded by rotation, makes nail securely fix knochenbruch, is conducive to wound healing.
Description
Technical field
The utility model is related to a kind of bone screws, and in particular to a kind of multiway fastens bone screws.
Background technology
The existing one-hundred-year history of screw Internal fixation technology treatment fracture, from plain screw to different pitch, the screw of screw rod, then
It is used for particular portion to hollow screw, hip screw, expandable nail, double thread screw, lock screw, micrometer screw, or even to some
The screw (such as pedicle screw) of position, or the screw (such as Absorbable plate) that special material is made, are in different poses and with different expressions, change
It is different.It both can be used alone, and can also be used as cooperation other various fixed system (such as pegboard systems or intramedullary nail system
Deng) essential equipment.With the raising of trauma fracture diagnosis and treatment theory, technology, internal fixation device manufactured, process technology
It is required that also constantly updating, the form and function of screw also have a very large change, and its mission born also becomes increasingly complex.
But all things considered, the function of screw is more from amechanical angle, the problem of solving a stability.
At present, research can be fixedly secured, and will not produce loosening, and the good bone screws of using effect have important meaning
Justice.
Utility model content
A kind of multiway is provided for the utility model that solves the above problems and fastens bone screws, is made up of nail body and fixed cover,
The nail body is made up of spiral shell pin and nut from top to bottom, and the spiral shell pin number is 4-10；Contain at the fixed cover axle center
Cavity, the structure of the spiral shell pin is from top to bottom to be arranged in parallel or each spiral shell pin is progressively leaned on to screw central axis at an angle
Hold together, the spiral shell pin is cylindrical or up big and down small reverse frustoconic；The nut edge is provided with boss.
The maximum gauge of cavity described in the utility model is available for putting after all spiral shell foot bottoms be arrangeding in parallel are kneaded together
Enter, or the spiral shell pin progressively drawn close at an angle to screw central axis is put into.
Cavity described in the utility model is inverted round stage cavity, and the cavity runs through or not through fixed cover in the axial direction.
Groove is additionally provided with nut described in the utility model, the groove is six prisms.
Fixed cover described in the utility model is cylinder.
The beneficial effects of the utility model：
1. nail body of the present utility model includes multiple spiral shell pin, when nail body is screwed into fixed cover, by external force spiral shell pin meeting
Rotating to be intertwined increases spatial volume, produces expansion effect, and extruding makes fixed cover surrounding produce expansion, from
And ensure bone screws can firmly fixation of bone fragments, bone screws integrally will not fall off and loosen.
2. the nut that multiway of the present utility model fastens bone screws is provided with boss, when performing the operation punching, can reserve with it is convex
The space that platform coordinates, after nail body screws in fixed cover, spiral shell pin can be because twisted shape rotary expansion, therefore boss occur for stress
Screens, which may insure nail body to screw in after fixed cover, to be reversely rotated and the release from fixed cover because itself generation.
3. the spiral shell pin and cavity of nail body of the present utility model, which coordinate, is able to ensure that nail body makes admittedly after fixed cover is screwed into
Surely the inside cavity covered is full, will not occur nail body and be slid from cavity, form secure fit.
, can be with 4. the nut of nail body of the present utility model is provided with groove, in implantation bone screws and during tightening
Effect that is time saving and energy saving and shortening operating time is reached, and can also effectively prevent that stripped thread phenomenon occurs when bone screws are screwed into.
Brief description of the drawings
Fig. 1 is that multiway of the present utility model fastens structural representation after bone screws coordinate；
Fig. 2 is the nail body schematic diagram that the utility model spiral shell pin be arranged in parallel；
Fig. 3 is that the nail body that the utility model spiral shell pin gradually draws close setting to screw central axis at an angle is illustrated
Figure；
Fig. 4 is the cross-sectional view of the utility model fixed cover；
Fig. 5 is that the utility model multiway fastening bone screws use schematic diagram；
In accompanying drawing, 1- screws；2- fixed covers；11- nuts；12- nuts；13- grooves；14- boss；21- cavitys.
Embodiment
With reference to Fig. 1-3, the utility model multiway fastens bone screws, is made up of nail body 1 and fixed cover 2, the nail body
It is made up of from top to bottom spiral shell pin 11 and nut 12, the number of spiral shell pin 11 is 4-10；Contain cavity in the axle center of fixed cover 2
21, the spiral shell pin 11 is from top to bottom to be arranged in parallel or each spiral shell pin is progressively drawn close to screw central axis at an angle, institute
State cavity 21 maximum gauge be available for be arrangeding in parallel the bottom of spiral shell pin 11 it is kneaded together after be put into, or progressively to screw central axis
Being put into for spiral shell pin is drawn close, when spiral shell pin 11 for when be arrangeding in parallel, the material of the spiral shell pin 11 is modulus of elasticity in 2000-3000Mpa
Degradation material, elastomeric material causes nail body 1 in use, manually can be kneaded into the bottom of spiral shell pin 11 and closely lean on
Hold together state, be easy to nail body 1 being put into cavity 21.The spiral shell pin 11 is cylindrical or up big and down small reverse frustoconic；It is described
Nut 12 is provided with boss 14, when performing the operation punching, can reserve the space coordinated with boss, after nail body screws in fixed cover,
Spiral shell pin can because stress occur twisted shape rotary expansion, therefore boss screens may insure nail body screw in fixed cover after will not
Because itself occurring to reversely rotate and unclamp from fixed cover.
Cavity 21 described in the utility model is inverted round stage cavity, and the cavity 21 runs through or not through fixed cover in the axial direction
2, the fixed cover 2 is cylinder, and this structure causes nail body 1 during being constantly screwed into downwards, and the bottom of fixed cover 2 can be because
Extrude and produce expansion, therefore fixed cover 2 is flexible aliphatic polyesters biodegradation material and/or naturally can absorb macromolecule
The soft material of material, the flexible aliphatic polyesters biodegradation material is PLA, polycaprolactone, polytrimethylene carbon
It is acid esters, poly- to the one or more in dioxy cyclohexanone, PHA, poly butylene succinate；It is described naturally to inhale
Receipts high polymer material is the one or more in collagen, gelatin, chitosan, fibroin albumen, alginic acid, polyaminoacid, Ke Yibao
Card fixed cover 2 is when being squeezed because being that soft material will not occur after non-plastic fracture, and the bottom expansion of fixed cover 2 can be compared with
Knochenbruch is firmly fixed, will not slide.Groove 13 is additionally provided with nut 12 described in the utility model, the groove 13 is six
Prism, during being implanted into bone screws and tightening, can reach effect that is time saving and energy saving and shortening operating time, and also may be used
Stripped thread phenomenon occurs during effectively preventing that bone screws are screwed into.
In conjunction with Fig. 4, the application method that the utility model multiway fastens bone screws is：According to new with this practicality at knochenbruch
Type multiway fastens the shape punching that bone screws coordinate, and hole bottom is taper, and hole end shape is identical with the shape of nut 12, and
And provided with the space being engaged with boss 14；Hole is cleaned the bone meal in cavity totally with blower pump or dust catcher after having beaten,
Fixed cover 2 is put into hole again, the bottom of spiral shell pin 11 of nail body 1 is put into the cavity 21 of fixed cover 2, then borrowed with instrument
Help groove 13 that nail is screwed into fixed cover 2, with the increase of stress, after nail body 1 is fully screwed into fixed cover 2, spiral shell pin 11
Rotation is wound twisted shape, and now boss 14 is overlapped with the reserved position coordinated of hole, it is to avoid spiral shell pin 11 is because of voluntarily reversely rotation
Then loosen, the shape of fried dough twist increases the volume of nail body 1, is expanded so as to extrude the surrounding of fixed cover 2, makes whole
Multiway, which fastens bone screws, can securely fix knochenbruch, be conducive to wound healing.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and changed.Therefore, the utility model is not limited to embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into scope of the claims of the present utility model.
Claims (5)
1. a kind of multiway fastens bone screws, it is made up of nail body (1) and fixed cover (2), it is characterised in that the nail body is under
It is made up of on spiral shell pin (11) and nut (12), spiral shell pin (11) number is 4-10；Contain at fixed cover (2) the axle center
Cavity (21), the structure of the spiral shell pin (11) is from top to bottom to be arranged in parallel or each spiral shell pin is at an angle progressively into screw
Heart axis is drawn close, and the spiral shell pin (11) is cylindrical or up big and down small reverse frustoconic；Nut (12) edge is provided with convex
Platform (14).
2. a kind of multiway according to claim 1 fastens bone screws, it is characterised in that the maximum gauge of the cavity (21)
It is available for being put into after all spiral shell pin (11) bottoms be arrangeding in parallel are kneaded together, or at an angle progressively to screw central axis
The spiral shell pin drawn close is put into.
3. a kind of multiway according to claim 1 fastens bone screws, it is characterised in that the cavity (21) is inverted round stage chamber
Body, the cavity (21) is run through or not through fixed cover (2) in the axial direction.
4. a kind of multiway according to claim 1 fastens bone screws, it is characterised in that be additionally provided with the nut (12) recessed
Groove (13), the groove (13) is six prisms.
5. a kind of multiway according to claim 1 fastens bone screws, it is characterised in that the fixed cover (2) is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621026924.XU CN206414333U (en) | 2016-08-31 | 2016-08-31 | A kind of multiway fastens bone screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621026924.XU CN206414333U (en) | 2016-08-31 | 2016-08-31 | A kind of multiway fastens bone screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206414333U true CN206414333U (en) | 2017-08-18 |
Family
ID=59577430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621026924.XU Withdrawn - After Issue CN206414333U (en) | 2016-08-31 | 2016-08-31 | A kind of multiway fastens bone screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206414333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420032A (en) * | 2016-08-31 | 2017-02-22 | 苏州西脉新诚生物科技有限公司 | Multi-pin fastened bone screw |
| CN107981926A (en) * | 2017-09-20 | 2018-05-04 | 北京航空航天大学 | The new resistance to plucking based on increases material manufacturing technology goes out pedicle nail |
-
2016
- 2016-08-31 CN CN201621026924.XU patent/CN206414333U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106420032A (en) * | 2016-08-31 | 2017-02-22 | 苏州西脉新诚生物科技有限公司 | Multi-pin fastened bone screw |
| CN106420032B (en) * | 2016-08-31 | 2019-07-26 | 苏州西脉新诚生物科技有限公司 | A kind of multiway fastening bone screws |
| CN107981926A (en) * | 2017-09-20 | 2018-05-04 | 北京航空航天大学 | The new resistance to plucking based on increases material manufacturing technology goes out pedicle nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170818 Effective date of abandoning: 20190726 |
|
| AV01 | Patent right actively abandoned |