CN209074847U - Pedicle screw - Google Patents
Pedicle screw Download PDFInfo
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- CN209074847U CN209074847U CN201821512930.5U CN201821512930U CN209074847U CN 209074847 U CN209074847 U CN 209074847U CN 201821512930 U CN201821512930 U CN 201821512930U CN 209074847 U CN209074847 U CN 209074847U
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- pedicle screw
- mesh portion
- pedicle
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Abstract
The utility model provides a kind of pedicle screw, including ontology, and the ontology includes stud section, and the stud section includes entity core and the mesh portion that entity core periphery is arranged in.Since the stud section in the utility model includes entity core and mesh portion positioned at entity core periphery, pass through the effect of entity core, convenient for improving the intensity of the pedicle screw in the utility model, pass through the effect of mesh portion, space is provided for Bone Ingrowth, so that pedicle screw can be firmly fixed in pedicle of vertebral arch, pedicle screw is avoided to occur loosening and exiting phenomenon.
Description
Technical field
The utility model relates to medical prosthesis technical fields, in particular to a kind of pedicle screw.
Background technique
With the improvement of living standards, more and more people start to pay attention to the treatment of spinal disease, deformity, tumour, wound
Etc. diseases more and more treated, the treatment of Via Posterior Spinal Approach nail stick secure fit spinal disease is a kind of critically important controls
Treatment means.Current pedicle screw used is mostly to machine screw, and surface is entity structure, is fixed by screw thread,
Backbone it is biggish it is movable be easy to cause screw loosen.
Utility model content
The main purpose of the utility model is to provide a kind of pedicle screws, to solve pedicle of vertebral arch screw in the prior art
Nail is easy to appear the problem of loosening after installing.
To achieve the goals above, the utility model provides a kind of pedicle screw, including ontology, and the ontology includes
Stud section, the stud section include entity core and the mesh portion that entity core periphery is arranged in.
Further, the end of the stud section is provided with solid external screw thread.
Further, the mesh portion is trabecular bone structure.
Further, the porosity of the mesh portion is 40% to 95%.
Further, the aperture of the mesh of the mesh portion is 800 ± 400 μm.
Further, the mesh portion along the stud section radially with a thickness of 0.2mm to 3mm.
Further, the pedicle screw is pedicle screw.
Further, the entity core and the mesh portion are integrally formed setting.
Further, the pedicle screw is 3D printing pedicle screw.
Further, the ontology further includes nut section, and the axis along the pedicle screw is provided in the nut section
To the connecting hole of extension.
Using the technical solution of the utility model, since the stud section in the utility model includes entity core and is located at real
The mesh portion of body core periphery, by the effect of entity core, convenient for improving the intensity of the pedicle screw in the utility model,
By the effect of mesh portion, space is provided for Bone Ingrowth, so that pedicle screw can be firmly fixed in pedicle of vertebral arch,
Pedicle screw is avoided to occur loosening and exiting phenomenon.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 diagrammatically illustrates the cross-sectional view of the pedicle screw of the utility model.
Wherein, the above drawings include the following reference numerals:
10, ontology；11, stud section；111, entity core；112, mesh portion；113, solid external screw thread；12, nut section；
121, connecting hole.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
It needs to infuse, term used herein above is merely to describe specific embodiment, and be not intended to restricted root evidence
The illustrative embodiments of the utility model.As used herein, unless the context clearly indicates otherwise, otherwise singular shape
Formula is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorization and say
A part of bright book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively,
Not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar mark
Number and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then subsequent
It does not need that it is further discussed in attached drawing.
Shown in Figure 1, embodiment according to the present utility model provides a kind of pedicle screw, and pedicle screw is
Pedicle screw.The pedicle screw includes ontology 10, and ontology 10 includes stud section 11, and stud section 11 includes entity core
111 and the mesh portion 112 of 111 periphery of entity core is set.
Pedicle screw in the present embodiment is 3D printing pedicle screw.The screw is that Ti6Al4V is added by 3D printing
Work molding, convenient for improving the stability of the pedicle screw in the present embodiment.
Mesh portion by stud section 11 in this present embodiment including entity core 111 and positioned at 111 periphery of entity core
112, by the effect of entity core 111, convenient for improving the intensity of the pedicle screw in the present embodiment, pass through mesh portion 112
Effect, provide space for Bone Ingrowth, so that pedicle screw can be firmly fixed in pedicle of vertebral arch, avoid pedicle of vertebral arch
Screw occurs loosening and exiting phenomenon.
The end of stud section 11 in the present embodiment is provided with solid external screw thread 113, convenient for pedicle screw to be screwed in
In pedicle of vertebral arch, convenient for guaranteeing the structural strength and service life of pedicle screw.
Preferably, the mesh portion 112 in the present embodiment is trabecular bone structure, and pore structure is identical as human body bone structure, has
Conducive to Bone Ingrowth.The porosity of mesh portion 112 is 40% to 95%, such as 60%, 80%, is convenient for and skeleton structure fusion
Growth is integrated.
Preferably, the aperture of the mesh of mesh portion 112 is 800 ± 400 μm, and aperture is close with body bone tissue, is that bone is long
Enter to provide support and hole.
Preferably, mesh portion 112 along stud section 11 radially with a thickness of 0.2mm to 3mm, such as 1mm, 2mm.
Preferably, entity core 111 and mesh portion 112 are integrally formed setting, and stable structure is reliable.
Ontology 10 in the present embodiment further includes nut section 12, and the axial direction along pedicle screw is provided in the nut section 12
The connecting hole 121 of extension, convenient for being connect with other structures.
It can be seen from the above description that the above embodiments of the utility model achieve the following technical effects:
The end of stud section in the utility model is provided with solid outer external screw thread, convenient for being screwed into for screw；After stud section
Section is the mesh portion without screw thread, and the radial thickness of mesh portion is 0.2-3mm, is conducive to Bone Ingrowth, is capable of providing good spiral shell
Follow closely stability.The aperture of the 3D printing pedicle screw mesh portion of the utility model is close with body bone tissue, mentions for Bone Ingrowth
Support and hole are supplied.
The surface of the pedicle screw of the utility model is mesh portion, space is provided for Bone Ingrowth, to keep screw secured
Be fixed in pedicle of vertebral arch, avoid loosening and exiting for screw.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of pedicle screw, which is characterized in that including ontology (10), the ontology (10) includes stud section (11), described
Stud section (11) includes the mesh portion (112) of entity core (111) and setting in entity core (111) periphery.
2. pedicle screw according to claim 1, which is characterized in that the end of the stud section (11) is provided with solid
External screw thread (113).
3. pedicle screw according to claim 1, which is characterized in that the mesh portion (112) is trabecular bone structure.
4. pedicle screw according to claim 1, which is characterized in that the porosity of the mesh portion (112) is 40%
To 95%.
5. pedicle screw according to claim 1, which is characterized in that the aperture of the mesh of the mesh portion (112) is
800±400μm。
6. pedicle screw according to claim 1, which is characterized in that the mesh portion (112) is along the stud section
(11) radially with a thickness of 0.2mm to 3mm.
7. pedicle screw according to claim 1, which is characterized in that the pedicle screw is spinal pedicle spiral shell
Nail.
8. pedicle screw according to claim 1, which is characterized in that the entity core (111) and the mesh portion
(112) it is integrally formed setting.
9. pedicle screw according to claim 1, which is characterized in that the pedicle screw is 3D printing pedicle of vertebral arch screw
Nail.
10. pedicle screw according to any one of claim 1 to 9, which is characterized in that the ontology (10) further includes
Nut section (12) is provided with the axially extending connecting hole (121) along the pedicle screw on the nut section (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512930.5U CN209074847U (en) | 2018-09-14 | 2018-09-14 | Pedicle screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512930.5U CN209074847U (en) | 2018-09-14 | 2018-09-14 | Pedicle screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209074847U true CN209074847U (en) | 2019-07-09 |
Family
ID=67116671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821512930.5U Active CN209074847U (en) | 2018-09-14 | 2018-09-14 | Pedicle screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209074847U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044519A (en) * | 2018-09-14 | 2018-12-21 | 北京爱康宜诚医疗器材有限公司 | pedicle screw |
-
2018
- 2018-09-14 CN CN201821512930.5U patent/CN209074847U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044519A (en) * | 2018-09-14 | 2018-12-21 | 北京爱康宜诚医疗器材有限公司 | pedicle screw |
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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: 20211011 Address after: 102200 No. 12, Chuangxin Road, Changping Science Park, Changping District, Beijing Patentee after: BEIJING LIBEIER BIO-ENGINEERING INSTITUTE Co.,Ltd. Address before: 102200 Beijing Changping District science and Technology Park No. 10, two floor, Xingye building, Bai Fu Quan road. Patentee before: BEIJING AK MEDICAL Co.,Ltd. |