CN107049568B - Bone filling device - Google Patents
Bone filling device Download PDFInfo
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- CN107049568B CN107049568B CN201710258315.XA CN201710258315A CN107049568B CN 107049568 B CN107049568 B CN 107049568B CN 201710258315 A CN201710258315 A CN 201710258315A CN 107049568 B CN107049568 B CN 107049568B
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- Prior art keywords
- spoke
- main body
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- support
- bone
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- 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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
The present invention provides a kind of bone filling devices, comprising: main body bar；Support component, support component are arranged around main body bar and surround between main body bar filling space, and there is support component the filling being connected to filling space to be open；Wherein, support component includes spoke disk and more support spokes, and the first end of each support spoke is installed on spoke disk, and the second end of each support spoke is installed on main body bar；Spoke disk is removably mounted on the axially movably setting on main body bar and along main body bar, so as to surround filling space between more supports spoke and main body bars.Bone filling device in the present invention solves the problems, such as that the method for bone defect healing in the prior art can not effective bone grafting.
Description
Technical field
The present invention relates to bone defect healing fields, in particular to a kind of bone filling device.
Background technique
Different degrees of bone defect can be encountered by cutting off treatment, prosthetic replacement, correction operation etc. in various orthopaedics, and bone lacks
Clinically disease incidence is higher for damage, and treatment is the important technical problem of orthopaedics.Although bone collection, group can be used in bone defect healing
Knit engineering technology, film inductive bone regeneration technology, gene therapy etc., but the method without thoroughly carrying out bone defect healing.
Conventional solution is that defect is filled moulding using the bone block of autologous bone or allograph bone, osseous granules, bone mud etc.,
It is implanted into corresponding prosthese or fixed instrument again to complete to perform the operation, or is directly filled with metal charge.It is lesser to lack
Damage takes the methods of graininess bone grafting, Structural bone graft or the diameter for expanding jointing repair prosthesis to rebuild multipotency and obtains good result.
However, when defect is serious, row is overhauled usually very intractable, and difficult point is to lack effective support construction, both
Prosthese can be rebuild to normal or close to normal anatomical position, accommodate new prosthese and make up to firm initial fixation,
It can guarantee that bone grafting particle and bone bed under the supporter have a stable healing environment, effective repairing bone defect again.Not only such as
This, bone defect point opening bone defect, central type bone defect, opening bone defect are difficult to provide bone-grafting material packet well
Hold, to increase the difficulty of bone grafting.
Bone-grafting material ultimately form the support of ideal bone must also after one absorbs the process of skeletonization again, at this
During a, the intensity of bone-grafting material, rigidity, enabling capabilities will be substantially reduced, so that expected bone filling, bone branch can not be played
Support effect, to face the possibility that bone graft area collapses again, and directly affects the service life of implantation material prosthese.Therefore, in bone grafting
Bone-grafting material can be stored well simultaneously, while can provide the good rigid structure of bone-grafting material is that bone grafting operation is keen to solve in the industry
Project.
In addition, although metal charge is effectively to select, but metal charge can not play autologous bone or allograph bone institute
The unique osteogenic ability having, and quality is hard (high elasticity modulus), and easily causing regional area stress shielding causes
Bone resorption.
Summary of the invention
The main purpose of the present invention is to provide a kind of bone filling devices, to solve bone defect healing in the prior art
Method can not effective bone grafting the problem of.
To achieve the goals above, the present invention provides a kind of bone filling devices, comprising: main body bar；Support component, support
Component is arranged around main body bar and surrounds between main body bar filling space, and support component has the filling being connected to filling space
Opening；Wherein, support component includes spoke disk and more support spokes, and the first end of each support spoke is installed on spoke disk,
The second end of each support spoke is installed on main body bar；Spoke disk is removably mounted on main body bar and along the axis of main body bar
To being movably disposed, so as to surround filling space between more supports spoke and main body bars.
Further, gap of the filling opening between adjacent two support spokes.
Further, main body bar has straight bar section, and support spoke is arc strip, encloses between each support spoke and main body bar
Archwise structure, filling space include the cavity of multiple bow-shaped structurals.
Further, spoke disk has multiple limit holes, and the first end of each support spoke is detachably inserted to accordingly
Limit hole in.
Further, support component further include: locking member, locking member are mounted on main body bar, support the second end of spoke
It is connect with locking member to be mounted on main body bar by locking member.
Further, spoke disk and locking member are ring-type, and locking member is rotatably sleeved on main body bar；Spoke disk is detachable
Ground is set on main body bar and is threadedly coupled with main body bar.
Further, main body bar is fastening bolt, and fastening bolt has polished rod neck and thread rod part, and polished rod neck is separate
One end of thread rod part is provided with nut portion；Spoke disk is removably set on thread rod part, and locking member is set in polished rod neck
On.
Further, support component further include: elastic bar, elastic bar be arranged between adjacent two supports spoke with
Connect adjacent two supports spoke.
Further, elastic bar is vertical bar shape or bending.
Further, elastic bar includes multiple straight-bar items and/or multiple arcs item.
Further, support spoke is titanium item.
Bone filling device in the present invention includes main body bar and support component, since support component is arranged around main body bar,
And filling space is surrounded between support component and main body bar, there is support component the filling being connected to filling space to be open.In hand
When art, which can be placed into the part for needing filler aggregate, it, will since support component has propped up filling space
The bone block of autologous bone or allograph bone, osseous granules are squeezed into from filling opening, are filled up, and form more solid bone in filling space
Matter.In this way, can efficiently solve metal charge does not have unique osteogenic ability and height possessed by autologous bone or allograph bone
Elasticity modulus, while having played can not effective bone grafting in the insufficient and opening defect of bone enabling capabilities caused by simple bone graft
The drawbacks of, to solve the problems, such as that the method for bone defect healing in the prior art can not effective bone grafting.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
The support component that Fig. 1 shows the embodiment of bone filling device according to the present invention is in one of off working state
The structural schematic diagram at visual angle；
Fig. 2 shows the main views of the bone filling device in Fig. 1；
Fig. 3 shows the in running order structural schematic diagram of support component of the bone filling device in Fig. 1；
Fig. 4 shows the main view of the bone filling device in Fig. 3；
The structure that Fig. 5 shows the first connection type between the support spoke of bone filling device according to the present invention is shown
It is intended to；
The structure that Fig. 6 shows second of connection type between the support spoke of bone filling device according to the present invention is shown
It is intended to；
The structure that Fig. 7 shows the third connection type between the support spoke of bone filling device according to the present invention is shown
It is intended to；
The structure that Fig. 8 shows the 4th kind of connection type between the support spoke of bone filling device according to the present invention is shown
It is intended to；
The structure that Fig. 9 shows the 5th kind of connection type between the support spoke of bone filling device according to the present invention is shown
It is intended to；
Figure 10 shows the structure of the 6th kind of connection type between the support spoke of bone filling device according to the present invention
Schematic diagram；
Figure 11 shows the structure of the 7th kind of connection type between the support spoke of bone filling device according to the present invention
Schematic diagram；
And
Figure 12 shows the structure of the 8th kind of connection type between the support spoke of bone filling device according to the present invention
Schematic diagram.
Wherein, the above drawings include the following reference numerals:
10, main body bar；20, support component；21, space is filled；22, spoke is supported；23, elastic bar；24, filling is opened
Mouthful；30, spoke disk；40, locking member.
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 present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The present invention provides a kind of bone filling devices, please refer to Fig. 1 to Figure 12, which includes: main body bar 10；
Support component 20, support component 20 are arranged around main body bar 10 and surround filling space 21, support component between main body bar 10
20 have the filling opening 24 being connected to filling space 21；Wherein, support component 20 includes that spoke disk 30 and Duo Gen support spoke 22,
The first end of each support spoke 22 is installed on spoke disk 30, and the second end of each support spoke 22 is installed in main body bar 10
On；Spoke disk 30 is removably mounted on the axially movably setting on main body bar 10 and along main body bar 10, so that more supports
Filling space 21 is surrounded between spoke 22 and main body bar 10.
Bone filling device in the present invention includes main body bar 10 and support component 20, since support component 20 is around main body bar
10 settings, and filling space 21 is surrounded between support component 20 and main body bar 10, support component has to be connected to filling space 21
Filling opening 24.The bone filling device can be placed into the part for needing filler aggregate at the time of surgery, due to support component
Filling space has been propped up, the bone block of autologous bone or allograph bone, osseous granules are squeezed into from filling opening 24, are filled up, in filling space
More solid sclerotin is formed in 21.There is no autologous bone or allograph bone to be had in this way, metal charge can be efficiently solved
Unique osteogenic ability and high elasticity modulus, while it is insufficient and open to have played bone enabling capabilities caused by simple bone graft
In type defect can not effective bone grafting the drawbacks of, so that the method for solving bone defect healing in the prior art can not effective bone grafting
Problem.
Specifically, as shown in Figures 1 to 4, gap of the filling opening 24 between adjacent two support spokes 22.This implementation
Example is installed in each support spoke 22 on main body bar 10 by making support component 20 include more support spokes 22, can
Filling space 21 is formed with the gap surrounded supported between spoke 22 and main body bar 10 using more, at this point, filling opening 24
The gap supported between spoke 22 for adjacent two.
In the present embodiment, as shown in Figures 1 to 4, main body bar 10 has straight bar section, and support spoke 22 is arc strip, respectively
Bow-shaped structural is surrounded between root support spoke 22 and main body bar 10, filling space 21 includes multiple arch being arranged around main body bar 10
The cavity of structure.At this point, since support spoke 22 is arc strip, and it is docked with the straight bar section of main body bar 10, and then, main body bar
The figure surrounded between 10 straight bar section and support spoke 22 is circular part i.e. arch.
In order to be assembled to more support spokes 22, as shown in Figures 1 to 4, spoke disk 30 have multiple limit holes, each
The first end of support spoke 22 is detachably inserted in corresponding limit hole.
As it can be seen that in each spoke top insertion spoke limit hole, extract spoke out from limit hole, in art can to spoke into
Row is cut, and so as to adjust the length in different directions of spoke, when spoke is shunk upwards, different expansions will be presented in different location
Space is opened, is adapted to the anisotropic of bone defect in this way.
Since at different positions, what support component 20 needed to expand fills the of different sizes of space 21, for this purpose, can root
According to actual conditions, the length of adjustment support spoke 22, then the upper end of spoke 22 will be supported to be inserted into limit hole.
In the present embodiment, support component 20 further include: locking member 40, locking member 40 are mounted on main body bar 10, support
The second end of spoke 22 is connect to be mounted on main body bar 10 by locking member 40 with locking member 40.Between locking member 40 and spoke disk 30
Every setting, locking member 40 and spoke disk 30 are movably disposed relatively to adjust the distance between locking member 40 and spoke disk 30.It is preferred that
Ground, locking member 40 are located at the lower section of spoke disk 30.
As it can be seen that the present embodiment passes through setting spoke disk 30 and locking member 40, and spoke disk 30 and locking member 40 are set in master
On body rod 10, the both ends for supporting spoke 22 can be more easily made to connect with main body bar 10, and then make more support spokes
22 arching upward towards the outside of main body bar 10, and then formation filling space 21.
As shown in Figures 1 to 4, spoke disk 30 and locking member 40 are ring-type, and locking member 40 is rotatably sleeved on main body bar
On 10；Spoke disk 30 is removably set on main body bar 10 and is threadedly coupled with main body bar 10.
When support component 20 is in off working state, notconnect state is between spoke disk 30 and main body bar 10；Work as branch
When support component 20 is in running order, threaded connection state is between spoke disk 30 and main body bar 10.
At this point, above mentioning main body bar 10, screw in it in threaded hole of spoke disk 30, and continues up rotating body bar 10, it can
So that the bending degree of support spoke 22 increases, i.e., the degree rided out outward is gradually increased.When having sufficiently large filling space
When 21, so that it may fill more aggregate into filling space 21.
Specifically, main body bar 10 is fastening bolt, and fastening bolt has polished rod neck and thread rod part, and polished rod neck is separate
One end of thread rod part is provided with nut portion；Spoke disk 30 is removably set on thread rod part, and locking member 40 is set in polished rod
On neck.At this point, side of the limit of locking member 40 in nut portion.
In the present embodiment, as shown in Fig. 5 to Figure 12, support component 20 further include: elastic bar 23, elastic bar 23 are set
It sets between adjacent two supports spoke 22 to connect adjacent two supports spoke 22.
Gap between adjacent two supports spoke 22 is variable expansion regions, and variable expansion regions are bigger, and filling opening 24 is got over
Greatly, and filling space 21 is also bigger.In order to guarantee the expanding ability between two support spokes 22, can be supported at adjacent two
Elastic bar 23 is set between spoke 22.Preferably, one end of elastic bar 23 is connect with a support spoke 22, elastic bar
23 other end is connect with another support spoke 22.
In order to guarantee the expanding ability of variable extended region, as shown in Fig. 5 to Figure 12, elastic bar 23 is vertical bar shape or curved
It is curved.
There is a region " variable expansion regions ", " variable expansion at the middle part of spoke support spoke 22, between spoke and spoke
Area " can be cut by laser into variform, and the corresponding expanding ability of every kind of form difference can guarantee spoke in this way
Expanding ability is different in all directions, ultimately forms the bone filling region of abnormity, is adapted to the anisotropic of bone defect in this way.
Preferably, elastic bar 23 includes multiple straight-bar items and/or multiple arcs item.
In addition, support spoke 22 is titanium item.
Lower mask body introduces various forms of elastic bars 23:
In Fig. 5, elastic bar 23 be bending, elastic bar 23 include the sequentially connected straight bar section of multistage, adjacent two
Section straight bar section extends in different directions.Elastic bar 23 is more, and more elastic bars 23 are along the extension side of support spoke 22
To being arranged between adjacent two supports spoke 22 at intervals.
In Fig. 6, elastic bar 23 is V-arrangement item, and one end of V-arrangement item connect with a support spoke 22, V-arrangement item it is another
End is connect with another support spoke 22.Elastic bar 23 is more, and more elastic bars 23 are along the extension side of support spoke 22
To being arranged between adjacent two supports spoke 22 at intervals.The opening of each V-arrangement item is towards identical.
In Fig. 7, elastic bar 23 is successively spliced by multistage segmental arc.Specifically, elastic bar 23 includes multiple U
Shape section, the opening of each U section is towards identical.Preferably, U section is two.Elastic bar 23 is more, more elastic bars
The extending direction of 23 edge support spokes 22 is arranged at intervals between adjacent two supports spoke 22.
In fig. 8, on the basis of the elastic bar 23 in Fig. 8 is elastic bar 23 in Fig. 7, in addition being used for adjacent two
The connecting bar of root elastic bar 23.Connecting bar herein is bent-strip.Elastic bar 23 is more, more elastic bars 23
Extending direction along support spoke 22 is arranged at intervals between adjacent two supports spoke 22.
In Fig. 9, elastic bar 23 in Fig. 8 includes multistage segmental arc, and one of the elastic bar 23 in specially Fig. 7
Half, i.e., elastic bar 23 herein includes a U section.Elastic bar 23 is more, and more elastic bars 23 are along support spoke
22 extending direction is arranged at intervals between adjacent two supports spoke 22.
In Figure 10, the elastic bar 23 in Figure 10 includes multistage segmental arc.Elastic bar 23 includes multiple U sections, phase
The directions of adjacent two U sections on the contrary, one upward, one is downward.Preferably, U section is two.Elastic bar 23
Be more, more elastic bars 23 along support spoke 22 extending direction be arranged at intervals adjacent two supports spoke 22 it
Between.
In Figure 11, on the basis of the elastic bar 23 in Figure 11 is elastic bar 23 in Figure 10, in addition for connecting
Connect the connecting bar of adjacent two elastic bars 23.Preferably, connecting bar is vertical bar shape.
In Figure 12, the elastic bar 23 in Figure 12 is flexible direct rod shape.Elastic bar 23 herein can be
It stretches or shrinks on its extending direction.
The object of the present invention is to provide a kind of expansible bone filling titanium cage (bone filling device), when operation, can pass through internal spiral shell
Screwing for nail struts titanium cage, can change in view of the expansion spoke length of titanium cage, changes the volume of different parts expansion with this
Size and support degree finally form certain space in titanium cage, by the bone block of autologous bone or allograph bone, osseous granules from spoke
Gap squeeze into, fill up.
More solid sclerotin will be formed inside titanium cage.The very strong sclerotin of bioactivity adds outside filling sclerotin in titanium cage
Portion's titanium cage effectively supports, and as internal solid support ideal bone grafting structure is collectively formed, effectively in titanium cage central screw
Solving metal charge does not have unique osteogenic ability and high elasticity modulus possessed by autologous bone or allograph bone, sends out simultaneously
Waved in the insufficient and opening defect of bone enabling capabilities caused by simple bone graft can not effective bone grafting the drawbacks of.
The technical advantage of bone filling device in the present invention:
1, the bone filling device in the present invention is that a kind of expansible bone fills titanium cage, and when operation can pass through the rotation of internal screw
Tightly titanium cage is strutted, finally forms certain space in titanium cage, by the bone block of autologous bone or allograph bone, osseous granules from spoke
Gap is squeezed into, is filled up, and more solid sclerotin will be formed inside titanium cage.
2, the very strong sclerotin of bioactivity is effectively supported plus titanium cage outside filling sclerotin in titanium cage, titanium cage central screw
As internal solid support, ideal bone grafting structure is collectively formed, efficiently solving metal charge does not have autologous bone or different
Unique osteogenic ability and high elasticity modulus possessed by body bone, while having played bone enabling capabilities caused by simple bone graft not
Be enough and opening defect in can not effective bone grafting the drawbacks of.
3, it can change in view of the expansion spoke length of titanium cage, change the volume size and support of different parts expansion with this
Dynamics.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Bone filling device in the present invention includes main body bar 10 and support component 20, since support component 20 is around main body bar
10 settings, and filling space 21 is surrounded between support component 20 and main body bar 10, support component has to be connected to filling space 21
Filling opening 24.The bone filling device can be placed into the part for needing filler aggregate at the time of surgery, due to support component
Filling space has been propped up, the bone block of autologous bone or allograph bone, osseous granules are squeezed into from filling opening 24, are filled up, in filling space
More solid sclerotin is formed in 21.There is no autologous bone or allograph bone to be had in this way, metal charge can be efficiently solved
Unique osteogenic ability and high elasticity modulus, while it is insufficient and open to have played bone enabling capabilities caused by simple bone graft
In type defect can not effective bone grafting the drawbacks of, so that the method for solving bone defect healing in the prior art can not effective bone grafting
Problem.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of bone filling device characterized by comprising
Main body bar (10)；
Support component (20), the support component (20) are arranged around the main body bar (10) and between the main body bars (10)
Filling space (21) is surrounded, the support component (20) has the filling opening (24) being connected to filling space (21)；
Wherein, the support component (20) includes spoke disk (30) and more support spokes (22), each support spoke (22)
First end be installed on the spoke disk (30), each it is described support spoke (22) second end be installed in the main body bar
(10) on；The spoke disk (30) is removably mounted on the main body bar (10) and along the axially-displaceable of the main body bar (10)
It is arranged dynamicly, so as to surround the filling space (21) between the more support spokes (22) and the main body bar (10)；
The support component (20) further include:
Elastic bar (23), elastic bar (23) setting are adjacent to connect between the adjacent two support spokes (22)
Two support spokes (22)；
The elastic bar (23) is more, extending direction phase of the more elastic bars (23) along support spoke (22)
It is arranged at intervals between adjacent two support spokes (22)；
Connecting bar, the connecting bar is for connecting adjacent two elastic bars (23)；
The spoke disk (30) has multiple limit holes, and the first end of each support spoke (22) is detachably inserted to phase
In the limit hole answered.
2. bone filling device according to claim 1, which is characterized in that the filling opening (24) is described in adjacent two
Support the gap between spoke (22).
3. bone filling device according to claim 1, which is characterized in that the main body bar (10) has straight bar section, described
Supporting spoke (22) is arc strip, surrounds bow-shaped structural between each support spoke (22) and the main body bar (10), institute
State the cavity that filling space (21) includes multiple bow-shaped structurals.
4. bone filling device according to claim 1, which is characterized in that the support component (20) further include:
Locking member (40), the locking member (40) are mounted on the main body bar (10), the second end of support spoke (22)
It is connect with the locking member (40) to be mounted on the main body bar (10) by the locking member (40).
5. bone filling device according to claim 4, which is characterized in that the spoke disk (30) and the locking member (40) are equal
For ring-type, the locking member (40) is rotatably sleeved on the main body bar (10)；The spoke disk (30) is removably arranged
It is threadedly coupled on the main body bar (10) and with the main body bar (10).
6. bone filling device according to claim 5, which is characterized in that the main body bar (10) is fastening bolt, described
Fastening bolt has polished rod neck and thread rod part, and the polished rod neck is provided with nut far from one end of the thread rod part
Portion；The spoke disk (30) is removably set on the thread rod part, and the locking member (40) is set in the polished rod neck
On.
7. bone filling device according to claim 1, which is characterized in that the elastic bar (23) is vertical bar shape or bending
Shape.
8. bone filling device according to claim 1, which is characterized in that the elastic bar (23) includes multiple straight-bar items
And/or multiple arcs item.
9. bone filling device according to claim 1, which is characterized in that the support spoke (22) is titanium item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258315.XA CN107049568B (en) | 2017-04-19 | 2017-04-19 | Bone filling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710258315.XA CN107049568B (en) | 2017-04-19 | 2017-04-19 | Bone filling device |
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| CN107049568A CN107049568A (en) | 2017-08-18 |
| CN107049568B true CN107049568B (en) | 2019-11-12 |
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| CN108095859B (en) * | 2017-12-14 | 2024-01-12 | 河北瑞鹤医疗器械有限公司 | Net-shape shaper for orthopaedics |
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| US5059193A (en) * | 1989-11-20 | 1991-10-22 | Spine-Tech, Inc. | Expandable spinal implant and surgical method |
| CN102510742A (en) * | 2009-06-17 | 2012-06-20 | 三位一体整形有限责任公司 | Expanding intervertebral device and methods of use |
| CN102319127A (en) * | 2011-09-30 | 2012-01-18 | 李峰 | Built-in bone support device |
| CN102743242A (en) * | 2012-07-13 | 2012-10-24 | 中南大学湘雅医院 | Support device for treating ONFH (osteonecrosis of femeral head) |
| CN203539426U (en) * | 2013-09-30 | 2014-04-16 | 陈飞 | Telescopic spine forming device |
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