CN104414725B - Have the fixing screws of micropore - Google Patents
Have the fixing screws of micropore Download PDFInfo
- Publication number
- CN104414725B CN104414725B CN201310403004.XA CN201310403004A CN104414725B CN 104414725 B CN104414725 B CN 104414725B CN 201310403004 A CN201310403004 A CN 201310403004A CN 104414725 B CN104414725 B CN 104414725B
- Authority
- CN
- China
- Prior art keywords
- fixing screws
- micropore
- rod section
- screw
- spiro rod
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
- A61B17/861—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver
- A61B17/8615—Heads, i.e. proximal ends projecting from bone specially shaped for gripping driver at the central region of the screw head
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/06—Implements for therapeutic treatment
Abstract
A kind of fixing screws of tool micropore, including：One spiro rod section and head of screw positioned at the spiro rod section one end, the spiro rod section contain rod body part and helically coiling take shape in the spiro tooth part of the rod body part；A wherein spiro rod section at least region is to constitute the microporous layers with several micropores by several micro- beams, and the rod body part is enabled to form the mandrel portion for not having micropore within the scope of the Radius along its axle center.The present invention contains the microporous layers that several micropores are made of several micro- beams, and when fixing screws being made to lock in diaphysis, newborn bone tissue can be embedded in several micropores, and it is integral to achieve the purpose that fixing screws are securely joined with diaphysis.
Description
Technical field
The invention relates to a kind of fixing screws of tool micropore, espespecially a kind of spiro rod sections of fixing screws, containing by counting
A micro- beam constitutes the microporous layers with several micropores.
Background technology
At present applied to orthopaedics or the fixing screws of dentistry, typically it is integrally formed by mechanical processing with metal bar, this
The surface of the existing fixing screws of class, is rearranged by metallic atom closely, and interatomic gap is minimum, and smooth in one
Metal covering, since newborn bone tissue grain size is about 50 μm, after such fixing screws lock diaphysis, newborn bone group
Knit is in gap between can not being embedded in metallic atom, so existing fixing screws after locking in diaphysis, are only capable of leaning on fixing screws
Friction between diaphysis is combined, and can not be really combined into one with diaphysis, when diaphysis moves, is fixed on consolidating on diaphysis
Determine screw, because generating shaking by huge external force, easily in diaphysis, and generates the phenomenon that loosening, this phenomenon is especially in sclerotin
It is more easy to occur on more loose patient.
Edge this, just have a kind of mode by chemical etching, on existing fixing screws surface, form several uneven whole faces
Or rough surface, phase allow newborn bone tissue to be tightly attached on these out-of-flatnesses or rough surface.But above-mentioned fixing screws, newly
Raw bone tissue still can only be attached on the outer surface of fixing screws, can not be deeper embedded in fixed screw, and can not reach
To the purpose being really combined into one with diaphysis.
For another United States Patent (USP) case the 5098434th, by the way of coating, by porosity coating, it is coated on fixing screws
Appearance, make the appearance of the fixing screws that porous surface be presented, be embedded in hole with sharp freshman bone tissue, so this is existing solid
One layer of coating must be additionally coated in manufacture by determining screw, not only increased processing procedure and also increased manufacturing cost, in addition, newborn bone
Tissue still can not penetrate in fixing screws, still be unable to reach the purpose being combined into one.
The present inventor is in view of this, be giving research and innovation, and disclose the fixing screws for having micropore shown in the present invention.
Invention content
Technical problem underlying to be solved by this invention is, overcomes drawbacks described above of the existing technology, and provides one
The fixing screws of kind tool micropore, contain and constitute the microporous layers with several micropores by several micro- beams, fixing screws is made to lock bone
When in body, newborn bone tissue can be embedded in several micropores, reached fixing screws and be securely joined with integral mesh with diaphysis
's.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of fixing screws of tool micropore, including：Spiro rod section and head of screw positioned at spiro rod section one end, the spiro rod section contain
Rod body part and helically coiling take shape in the spiro tooth part of the rod body part；A wherein spiro rod section at least region, is by several micro-
Beam constitutes the microporous layers with several micropores, and enables the rod body part within the scope of the Radius along its axle center, is axially formed not
Has the mandrel portion of micropore；When the fixing screws being made to lock in diaphysis in this way, newborn bone tissue can be embedded in the micro- of the spiro rod section
In several micropores of aperture layer, it is integral to achieve the purpose that fixing screws are securely joined with diaphysis.
The fixing screws of disclosed tool micropore, axially run through a guide hole is made with allowing a guiding rope to penetrate
Fixing screws accurately can be locked scheduled position by the present invention in Minimally Invasive Surgery by the guiding of the guiding rope.Above-mentioned
Guide hole axially penetrates through the mandrel portion of the head of screw and spiro rod section.
The fixing screws of disclosed tool micropore, it is solid can be directly integrally formed this by 3D duplicator 3d printer
Determine screw, or using tradition machinery processing and manufacturing as semi-finished product after, then by means of 3d printer in being completed in a manner of filling up on semi-finished product
The microporous layers, the present invention do not limit its manufacturing method certainly.
The fixing screws of disclosed tool micropore, the wherein microporous layers are only formed in the rod body part of the spiro rod section；
Or the microporous layers is enabled to be formed in the rod body part outer layer and spiro tooth part of the spiro rod section.
The fixing screws of disclosed tool micropore, enable between the spiro tooth part and the mandrel portion, are formed with the rib of pore-free
Portion.
The fixing screws of disclosed tool micropore, the wherein head of screw Yu spiro rod section of the fixing screws are integrally formed；
Or the head of screw of the fixing screws is enabled to be equipped with a bowl sink, and the top of the spiro rod section is equipped with a ball face, and the ball face is enabled to set
In the bowl sink of the head of screw, keep the head of screw and the spiro rod section swingable.
The fixing screws of disclosed tool micropore, the wherein top of the head of screw of the fixing screws, are recessed with a rank
Cave is connect, and the linking cave can fasten a rolled-up stock, to fasten an implantation material between the linking cave and rolled-up stock；Above-mentioned linking cave
Two opposite side walls on, be respectively equipped with a catching groove, and the rolled-up stock contains a pressboard, which can be placed in the linking cave
In, press on implantation material, one buckle separately is housed in pivot on the pressboard, enabling the buckle that can be a spanner or bottle opener rotatably makes
Its both side edges is respectively protruding into the linking acupuncture point in the catching groove of both sides, and with block, the pressboard exits outward, and makes the implantation material
It can be locked in the linking cave.
The fixing screws of disclosed tool micropore, the recessed row in end of the wherein spiro rod section cut slot, the row are enabled to cut
The side of slot forms cutting edge, so that the present invention is formed a tapping screw, can directly enter in diaphysis by rotation lock.
The fixing screws of disclosed tool micropore can carry out integer to spiro tooth part by mold, make spiral shell after molding
The surface in tooth portion forms flat surface.
The fixing screws of disclosed tool micropore, wherein enable the micropore being made of several micro- beams, aperture between
Between 100~500 μm, it is extremely suitable for newborn bone tissue and enters in each micropore to grow, the diaphysis for making the fixing screws with it can lock
It combines closely integral, situation will not be got loose.To improve the made metallic screw of existing tradition machinery processing, bone tissue
The shortcomings that growth can not be embedded in.
The invention has the advantages that it contains constitutes the microporous layers with several micropores by several micro- beams, make fixed spiral shell
When nail is locked in diaphysis, newborn bone tissue can be embedded in several micropores, reached fixing screws and be securely joined with into diaphysis
The purpose of one.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the stereogram exploded view of first embodiment of the invention.
Fig. 2 is that embodiment illustrated in fig. 1 is not yet locked the stereogram schematic diagram of the rolled-up stock.
Fig. 3 be from Fig. 2 lock the rolled-up stock after stereoscopic schematic diagram.
Fig. 4 is the close-up schematic view of spiro rod section of the present invention.
Fig. 5 is to show that the spiro rod section of the present invention locks the schematic diagram in diaphysis.
Fig. 6 is the part section structural representation of 6-6 directions shown in Fig. 5.
Fig. 7 is the part section structural representation of 7-7 directions shown in Fig. 3.
Fig. 8 is the part section structural representation of second embodiment of the invention.
Fig. 9 is the part section structural representation of third embodiment of the invention.
Figure 10 is the part section structural representation of fourth embodiment of the invention.
Figure 11 is the part section structural representation of fifth embodiment of the invention.
Figure label explanation：
10 fixing screws, 11 head of screw 11a bowl sinks
111 linking 112 rolled-up stocks of cave 111a catching grooves
113 clamping bolt of 112a pressboard 112b buckles
12 spiro rod section of 12a ball faces, 120 mandrel portion
121 rod body part, the 122 micro- beams of spiro tooth part 123a
123 microporous layers 123b micropores, 124 flank
13 guide hole, 20 diaphysis, 201 sponge bone
Specific implementation mode
It please refers to Fig.1 to shown in Fig. 7, the invention relates to a kind of fixing screws 10 of tool micropore, the fixing screws 10
An at least region is to constitute the microporous layers 123 with several micropore 123b by several micro- beam 123a, and the fixing screws 10 is made to lock
After entering in diaphysis 20, newborn bone tissue can be embedded in several micropore 123b of microporous layers 123, reach fixing screws 10 and bone
Body 20 is securely joined with integral purpose.
The fixing screws 10 of disclosed tool micropore, including：One spiro rod section 12 and positioned at 12 one end of spiro rod section
Head of screw 11, the wherein spiro rod section 12 coil the spiro tooth part 122 for taking shape in the rod body part 121 containing rod body part 121 and helically；
The wherein microporous layers 123 are only formed in the outer layer of the rod body part 121 of the spiro rod section 12, or are formed in the rod body part of the spiro rod section 12
121 outer layers and spiro tooth part 122.
It is disclosed tool micropore fixing screws 10, as shown in figure 4, wherein each several micro- beam 123a be with diamond shape,
The modes such as rectangle, honeycomb, radial, irregular arrange, and on the spiro rod section 12, composition one is firm and has several micropore 123b
123 structure of microporous layers, the present invention is from the arrangement mode of each micro- beam 123a of limit.In addition, each micro- beam 123a's is disconnected
Face can be round, polygon equal section shape, and the present invention is not from limit.
As shown in fig. 7, the fixing screws 10 of disclosed tool micropore, the wherein a spiro rod section 12 at least region,
It is to constitute the microporous layers 123 with several micropore 123b by several micro- beam 123a, and enable the rod body part 121 along the one of its axle center
In radius, it is axially formed the mandrel portion 120 for not having micropore, it is newborn after so that the fixing screws 10 is locked in diaphysis 20
Bone tissue can be embedded in each micropore 123b of the microporous layers 123 positioned at the spiro rod section 12, reach fixing screws 10 and diaphysis 20
It is securely joined with integral purpose, and strengthens the structure of the present invention by the mandrel portion 120 for not having micropore.
As shown in Figure 8, Figure 9, the fixing screws 10 of disclosed tool micropore, the only leading portion in the spiro rod section 12, shape
At the microporous layers 123 being made of several micro- beam 123a, and the other parts of the spiro rod section 12 are in the structure for not having micropore.Such as
Shown in Fig. 8, make fixing screws 10 shown in the present invention, when locking diaphysis 20,12 leading portion of spiro rod section with microporous layers 123,
It can penetrate the sponge bone 201 inside diaphysis 20, in spongy bone, make bone tissue in hyperplasia, can smoothly be embedded in this hair
Growth in bright each micropore 123b in the microporous layers 123 of 12 leading portion of spiro rod section, to be closely combined into the spiro rod section 12
One, is firmly secured on diaphysis 20, and does not have 12 other parts of spiro rod section of 123 structure of microporous layers, it is possible to provide stronger
Mechanical strength is produced fracture to avoid the fixing screws 10 when locking in diaphysis 20 with bearing the torsion of bigger.
As shown in figure 9, the fixing screws 10 of disclosed tool micropore, axially run through a guide hole 13, for holding
Perhaps a guiding rope penetrates, and makes the present invention in Minimally Invasive Surgery, can accurately lock fixing screws 10 by the guiding of the guiding rope
Enter scheduled position.Above-mentioned guide hole 13 axially penetrates through the mandrel portion 120 of the head of screw 11 and spiro rod section 12.
As shown in Figure 10, the fixing screws 10 of disclosed tool micropore, enable the spiro tooth part 122 and the rod body part 121
Mandrel portion 120 between, the flank 124 of pore-free is formed, to promote the torsion that can bear of the present invention.
The fixing screws 10 of disclosed tool micropore can be sintered by laser [such as with 3D duplicators by metal powder
(3D Printer)] be integrally formed, or using tradition machinery processing and manufacturing as semi-finished product after, then borrow 3D Printer on semi-finished product
The microporous layers 123 are completed in a manner of filling up, the present invention does not limit its manufacturing method certainly.
The fixing screws 10 of disclosed tool micropore can carry out spiro tooth part 122 by mold whole after molding
Type makes the surface of spiro tooth part 122 form flat surface, and resistance when diaphysis 20 is locked to reduce.
The fixing screws 10 of disclosed tool micropore can be made from metal materials such as titanium, alloys, and the present invention is not from limit
Its material.
The fixing screws of disclosed tool micropore, wherein being made of with several micropore 123b several micro- beam 123a
Microporous layers 123, enable each micropore 123b between 100~500 μm, allow newborn bone tissue along entering into microporous layers 123
It is grown in each micropore 123b, makes the fixing screws 10 that can combine closely integrally with the diaphysis 20 of locking, will not get loose, shake
Situations such as rolling.
The fixing screws 10 of disclosed tool micropore, as shown in Figure 1, the wherein head of screw 11 and spiro rod section 12 can one
It is body formed, become fixed screw；Or as shown in figure 11, the head of screw 11 is enabled to be equipped with a bowl sink 11a, and the spiro rod section 12
Top is equipped with a ball face 12a, enables ball face 12a be placed in the bowl sink 11a of the head of screw 11, makes the head of screw 11 and the spiral shell
Rod segment 12 is swingable.
The fixing screws 10 of disclosed tool micropore, the wherein head of screw 11 can form the gabarit or tool of tool polygon
There is the depression of a polygon, or be recessed with cross or linear type groove, with for spanner or bottle opener linkage rotation, the present invention is not
Limit the shape of the head of screw 11.
It is disclosed tool micropore fixing screws 10, wherein the head of screw 11 can be used to interlocking or snapping such as connecting rod,
The implantation material 30 of spring lever, joining rod etc., as shown in Figure 1, the top of the wherein head of screw 11 of the fixing screws 10 is recessed with one
It is connected cave 111, and the linking cave 111 can fasten a rolled-up stock 112, to fasten the plant between the linking cave 111 and rolled-up stock 112
Enter object 30.
As shown in Figure 1, in the two opposite side walls in above-mentioned linking cave 111, it is respectively equipped with a catching groove 111a, and the rolled-up stock
112 contain a pressboard 112a, and pressboard 112a can be placed in the linking cave 111 [as shown in Figure 2], press in implantation material 30
On, separately on pressboard 112a, pivot is equipped with a buckle 112b, and it can be the tools such as a spanner or bottle opener to enable buckle 112b, such as
Shown in the directions Fig. 3 R, the both side edges of buckle 112b is rotatably made to be respectively protruding into the both sides catching groove 111a in the linking cave 111 [such as
Shown in Fig. 3, Fig. 5], it is exited outward with block pressboard 112a, and the implantation material 30 is allow to be locked to the linking cave 111
In.
As shown in figure 9, linking cave 111 above-mentioned forms inner bolt hole with can also modifying, with one clamping bolt 113 of interlocking, by
Clamping bolt 113 is urgent for this, fixes the implantation material in the linking cave 111；The present invention 11 structure of head of screw above-mentioned and shape, only
For one of embodiment, the present invention can be other shapes or structure, not be limited to above-mentioned revealed each embodiment certainly.
The fixing screws 10 of disclosed tool micropore, the end of spiro rod section 12, can a recessed row cut slot 15, enabling should
The side that row cuts slot 15 forms cutting edge, and forms a tapping screw.
The fixing screws 10 of disclosed tool micropore can be applied to the fixation of the gum, fixation of human vertebra, other
The fixation of position bone, the present invention do not limit its application range certainly.
The fixing screws 10 of disclosed tool micropore, are mainly characterized by spiro rod section 12 at least a region, if
Have the microporous layers 123 for being made of several micro- beam 123a and having several micropore 123b, make newborn bone tissue, not only can with its
The spiro rod section 111 of contact is located at the growths of the micropore 123b on outermost surface, more can deeply level off to the mandrel of spiro rod section 12
It is grown in each micropore 123b in 120 region of portion, newborn bone tissue is made to be inserted into the spiral shell of fixing screws 10 like packing mistake knot
In rod segment 12, achievees the purpose that fixing screws 10 and diaphysis 20 are firm and be combined into one and effect, sent out to avoid fixing screws 10
Raw situations such as loosening or rocking.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is that any simple modification, equivalent change and modification made by above example are still fallen within according to the technical essence of the invention
In the range of technical solution of the present invention.
Claims (10)
1. a kind of fixing screws of tool micropore, which is characterized in that including：One spiro rod section and screw positioned at the spiro rod section one end
Head, the spiro rod section contain rod body part and helically coil the spiro tooth part for taking shape in the rod body part；Wherein spiro rod section at least one
Region is to constitute the microporous layers with several micropores by several micro- beams, and enable the rod body part in the Radius range along its axle center
It is interior to form the mandrel portion for not having micropore.
2. having the fixing screws of micropore according to claim 1, which is characterized in that the microporous layers are formed in the spiro rod section
Rod body part outer layer and spiro tooth part.
3. having the fixing screws of micropore according to claim 1, which is characterized in that between the spiro tooth part and the mandrel portion, shape
At the flank of pore-free.
4. having the fixing screws of micropore according to claim 1, which is characterized in that further comprise a guide hole, this is enabled to lead
Pilot hole axially penetrates through the head of screw and spiro rod section.
5. having the fixing screws of micropore according to claim 1, which is characterized in that be made of with several micro- several micro- beams
The microporous layers in hole enable each micropore size between 100~500 μm.
6. having the fixing screws of micropore according to claim 1, which is characterized in that the head of screw and spiro rod section one at
Type.
7. having the fixing screws of micropore according to claim 1, which is characterized in that the head of screw is equipped with a bowl sink, and is somebody's turn to do
The top of spiro rod section is equipped with a ball face, enables the ball face be placed in the bowl sink of the head of screw, makes the head of screw and the spiro rod section
It is swingable.
8. having the fixing screws of micropore according to claim 1, which is characterized in that the top of the head of screw of the fixing screws
End, is recessed with a linking cave, and the linking cave is fastened with a rolled-up stock, to fasten an implantation between the linking cave and rolled-up stock
Object；In the two opposite side walls in above-mentioned linking cave, it is respectively equipped with a catching groove, and the rolled-up stock contains a pressboard, the pressboard
It is placed in the linking cave, one buckle separately is housed in pivot on the pressboard, enabling the buckle rotatably makes its both side edges be respectively protruding into
In the both sides catching groove in the linking cave.
9. having the fixing screws of micropore according to claim 1, which is characterized in that the end of the spiro rod section, a recessed row
Slot is cut, enables the side that the row cuts slot form cutting edge, forms a tapping screw.
10. having the fixing screws of micropore according to claim 1, which is characterized in that the head of screw enables its gabarit be formed more
Side shape；Or enable depression or groove of the head of screw with a polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310403004.XA CN104414725B (en) | 2013-09-06 | 2013-09-06 | Have the fixing screws of micropore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310403004.XA CN104414725B (en) | 2013-09-06 | 2013-09-06 | Have the fixing screws of micropore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104414725A CN104414725A (en) | 2015-03-18 |
| CN104414725B true CN104414725B (en) | 2018-08-07 |
Family
ID=52965575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310403004.XA Expired - Fee Related CN104414725B (en) | 2013-09-06 | 2013-09-06 | Have the fixing screws of micropore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104414725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104758042A (en) * | 2015-04-20 | 2015-07-08 | 吴志宏 | Bone screw of three-dimensional through porous structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098434A (en) * | 1990-11-28 | 1992-03-24 | Boehringer Mannheim Corporation | Porous coated bone screw |
| CN105962993B (en) * | 2009-11-09 | 2019-04-26 | 斯伯威丁股份公司 | Medical instrument, medical device and surgical method |
| CN202288439U (en) * | 2011-10-21 | 2012-07-04 | 中国人民解放军第二军医大学 | Plasma spray coated orthopedic screw |
-
2013
- 2013-09-06 CN CN201310403004.XA patent/CN104414725B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104414725A (en) | 2015-03-18 |
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Granted publication date: 20180807 Termination date: 20190906 |