CN208910585U - A kind of Artificial Rib - Google Patents
A kind of Artificial Rib Download PDFInfo
- Publication number
- CN208910585U CN208910585U CN201721271864.2U CN201721271864U CN208910585U CN 208910585 U CN208910585 U CN 208910585U CN 201721271864 U CN201721271864 U CN 201721271864U CN 208910585 U CN208910585 U CN 208910585U
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- Prior art keywords
- stretching structure
- slot
- elongated cavity
- artificial rib
- stretching
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- 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.)
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- 229910001069 Ti alloy Inorganic materials 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 11
- 210000001562 sternum Anatomy 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000002344 surface layer Substances 0.000 claims description 7
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 4
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 4
- 229920002530 polyetherether ketone Polymers 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 210000001519 tissue Anatomy 0.000 description 5
- 241000282412 Homo Species 0.000 description 3
- 210000000038 chest Anatomy 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 210000000115 thoracic cavity Anatomy 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 208000006386 Bone Resorption Diseases 0.000 description 1
- 206010031149 Osteitis Diseases 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000024279 bone resorption Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model provides a kind of Artificial Rib, comprising: the first stretching structure, the second stretching structure and elongated cavity；First stretching structure one end is the first connecting pin, and second stretching structure one end is second connection end, the first stretching structure, the second stretching structure the other end be built in the both ends of elongated cavity respectively, and can be out of elongated cavity to out-draw；Drawing and pulling type track is arranged in the inside of elongated cavity, one end that first stretching structure and the second stretching structure are placed in elongated cavity is provided with limiting tooth, the two sides of track are respectively arranged with the position limiting structure to match with limiting tooth, the angle of limiting tooth and draw direction is greater than 90 degree, and the two sides of the first stretching structure and the second stretching structure open up through slot.The utility model, which is realized, adapts to the stretchable Artificial Rib of growth in humans, this is stretched as identical as growth in humans direction, extends the service life of Artificial Rib.Extend the period that patient replaces Artificial Rib.
Description
Technical field
The utility model relates to artifical bone's technical field more particularly to a kind of Artificial Ribs.
Background technique
The rib absence of human body will cause breathing it is abnormal, seriously affect human health or even threat to life.So right
The chest rib of defect is replaced or is repaired.
Artificial rib in the prior art is only able to satisfy the current figure of patient, can not change ruler according to the figure of patient
It is very little.
Utility model content
The utility model provides a kind of Artificial Rib, to overcome above-mentioned technical problem.
A kind of Artificial Rib of the utility model, comprising:
First stretching structure, the second stretching structure and elongated cavity；
First stretching structure one end is the first connecting pin, and second stretching structure one end is second connection end, institute
State the first stretching structure, the other end of second stretching structure is built in the both ends of the elongated cavity respectively, and can be from described
It is stretched out respectively in elongated cavity；
Drawing and pulling type track is arranged in the inside of the elongated cavity, and first stretching structure and the second stretching structure are placed in described
The two sides of one end in elongated cavity are provided with limiting tooth, and the two sides of the track are respectively arranged with to match with the limiting tooth
Position limiting structure, the inclined-plane of the limiting tooth and the angle of draw direction are greater than 90 degree, and first stretching structure and second stretch
The position that the middle part of structure corresponds to the limiting tooth opens up through slot；
First stretching structure, the second stretching structure connecting pin buckle, one end of the buckle and described the are set
One stretching structure, the connecting pin of the second stretching structure are hinged, and the other end opens up through-hole, connect by the way that bolt and vertebra or breastbone are fixed
It connects.
Further, first limiting tooth that first stretching structure and the second stretching structure are located at draw direction corresponds to
Through slot front end be arranged the first limited block, the elongated cavity both ends be provided with and first limited block it is matched second limit
Block.
Further, the width of first limited block is less than the width of the through slot, the two sides of first limited block
First side through slot and second side through slot, the first side through slot, the second side through slot and described first are set
The overall width of limited block is equal with the through slot, and the length of the first side through slot and the second side through slot is greater than described
Circular hole, first side is arranged in the top of the length of first limited block, the first side through slot and the second side through slot
Peek material is injected in side through slot and the second side through slot.
Further, the limiting tooth is right angled triangle teeth, and the position limiting structure is pair raised on the track
Set one's teeth on edge or the card slot in the track.
Further, the height of the limiting tooth is successively successively decreased along draw direction, and the through slot and described first stretches
Structure, the distance at the second stretching structure edge reduce along the draw direction.
Further, the joining place of the elongated cavity and first stretching structure, second stretching structure, which is arranged, seals
Closed loop, described closed-loop one end and the elongated cavity are clamped, and reinforcing ring is arranged in the other end.
Further, broached-tooth design is arranged in the bending place of the buckle, and the broached-tooth design is PEEK material.
Further, first stretching structure, the second stretching structure, elongated cavity and buckle are all made of titanium alloy, institute
It states titanium alloy outer surface and is coated with peek layers.
Further, described peek layers include: be covered on the titanium alloy surface base and be set to the base it
On surface layer, the surface layer is equidistant rough honeycomb.
The utility model, which is realized, adapts to the stretchable Artificial Rib of growth in humans, this is stretched as and growth in humans direction phase
Together, the service life of Artificial Rib is extended.Extend the period that patient replaces Artificial Rib.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is
Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the utility model Artificial Rib structural schematic diagram；
Fig. 2 is the structural schematic diagram of the utility model closed-loop；
Fig. 3 is the enlarged fragmentary cross section in Fig. 2 at A；
Fig. 4 is another enlarged fragmentary cross section at A in Fig. 2；
Fig. 5 is the structural schematic diagram of the utility model limited block；
Fig. 6 is that broached-tooth design schematic diagram is arranged in the utility model buckle；
Fig. 7 is the enlarged fragmentary cross section in Fig. 2 at B；
Fig. 8 is the honeycomb schematic diagram of the utility model Peek coating.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1 is the utility model Artificial Rib structural schematic diagram, as shown in Figure 1, the Artificial Rib of the present embodiment, can wrap
It includes:
First stretching structure 1, the second stretching structure 2 and elongated cavity 3；
Described first stretching structure, 1 one end is the first connecting pin, and described second stretching structure, 2 one end is second connection end,
First stretching structure 1, second stretching structure 2 the other end be built in the both ends of the elongated cavity 3 respectively, and can be from
It is stretched out respectively in the elongated cavity 3；
Drawing and pulling type track is arranged in the inside of the elongated cavity 3, and first stretching structure 1 and the second stretching structure 2 are placed in
The two sides of one end in the elongated cavity 3 are provided with limiting tooth 5, and the two sides of the track are respectively arranged with and the limiting tooth 5
The position limiting structure to match, the inclined-plane of the limiting tooth 5 and the angle of draw direction are greater than 90 degree, first stretching structure 1
The position for corresponding to the limiting tooth 5 with the middle part of the second stretching structure 2 opens up through slot 13；
The connecting pin setting buckle 4 of first stretching structure 1, the second stretching structure 2, one end of the buckle 4 and institute
It is hinged to state the first stretching structure 1, the connecting pin of the second stretching structure 2, through-hole is arranged in the other end, passes through bolt and vertebra or breastbone
It is fixedly connected.
Specifically, the Artificial Rib of the present embodiment includes three parts: the first stretching structure 1, the second stretching structure 2 and
One end of elongated cavity 3, first stretching structure 1 and the second stretching structure 2 is built in the both ends of the elongated cavity 3 respectively, and can
To out-draw out of described elongated cavity 3.The other end of first stretching structure 1 and the second stretching structure 2 is respectively the first connection
End and second connection end.When the present embodiment Artificial Rib is placed horizontally in thoracic cavity, which can connect vertebra,
Then second connection end connects breastbone.Alternatively, the first connecting pin connects breastbone, then second connection end connects vertebra.This is not subject to
It limits.When the present embodiment Artificial Rib is longitudinally placed in thoracic cavity, first connecting pin and second connection end be can connect
Other rib cages in lower direction.The angle of the inclined-plane of limiting tooth 5 and draw direction is greater than 90 degree, reduce the first stretching structure 1 or
Comparative resistance when second stretching structure 2 pulls out between the position limiting structure of track two sides.
The connecting pin of the Artificial Rib of the present embodiment, the first stretching structure 1 and the second stretching structure 2 passes through buckle 4 and chest
Bone or vertebra connection.4 one end of buckle and Artificial Rib are hinged, convenient for the assembly of Artificial Rib and vertebra or breastbone, the other end
It is fixedly connected by bolt with vertebra or breastbone, improves the stability between Artificial Rib and skeleton.Meanwhile buckle 4
One end and stretching structure be hinged with the growth for being conducive to buckle be fixedly connected vertebra or rib cage.First stretching structure, 1 He
Second stretching structure 2 realizes the stretching to both ends in patient's growth course.Limiting tooth 5 and position limiting structure are mutually matched, and are prevented
Stopped patient during exercise Artificial Rib direction movement caused by damaging surrounding tissue.
First stretching structure 1 and the first stretching structure 2 can in same level, in order to shorten the length of elongated cavity 3,
First stretching structure 1 and the second stretching structure 2 also may be at the upper layer and lower layer in elongated cavity 3.
As shown in figure 5, first stretching structure 1 and the second stretching structure 2 are located at first limiting tooth of draw direction
The first limited block 9 is arranged in corresponding 13 front end of through slot, and 3 both ends of elongated cavity are set to the limited block 9 matched second and limit
Position block 12.
Specifically, when the first stretching structure 1 and the second stretching structure 2 under external force by stretching out to limiting tooth
When end, tissue is caused to damage to prevent the limiting tooth from stretching out elongated cavity 3, the setting the in the front end of stretching structure through slot 13
The second limited block 12 is arranged in one limited block 9,3 both ends of elongated cavity.Second limited block 12 matches with the first limited block 9, stops
Stretching structure continues to stretch out.First limited block 9 can be set in the top of stretching structure, also can be set in stretching structure
Bottom, can also be arranged simultaneously in top and bottom.Second limited block 12 is set to drawing according to the position that the first limited block 9 is arranged
It stretches top, bottom or the top and bottom of chamber 3 while being arranged.
As shown in figure 4, the width of first limited block 9 is less than the width of the through slot 13, the two sides of the limited block 9
First side through slot 7 and second side through slot 9 be set, the first side through slot 7, the second side through slot 8 and described
The overall width of first limited block 9 is equal with the through slot 13, the length of the first side through slot 7 and the second side through slot 8
Degree is greater than the length of first limited block 9, the top setting circle of the first side through slot 7 and the second side through slot 8
Peek material is injected in hole 18, the first side through slot 7 and the second side through slot 8.
Specifically, the limited block of the present embodiment and the first side through slot 7 of its two sides and the beam overall of second side through slot 8
It is equal with the width of through slot 13.Since through slot 13 is limited when the first stretching structure 1 and the second stretching structure 2 stretch out movement
The inside stress of position tooth 5.The circular hole 18 on the top of first side through slot 7 and the second side through slot 8 has dispersed 13 end of through slot
The stress in portion.Prevent the first stretching structure 1 and the second stretching structure 2 from cleaving under the action of stress.First side through slot 7
With in the second side through slot 8 inject peek material, due to PEEK material have elasticity, to buffer the first limited block 9
With the impulse force of the second limited block 12.Prevent the secondary injury that tissue is caused because of Artificial Rib damage.
Further, the height of the limiting tooth 5 is successively successively decreased along draw direction, and the through slot 13 and described first is drawn
Stretch structure 1, the distance at 2 edge of the second stretching structure reduces along the draw direction.
Specifically, the hardness of bone increases therewith with the growth of human body.First stretching structure 1 and second stretches knot
Structure 2 stretches out stress and also becomes larger.Therefore, the height of limiting tooth 5 is successively successively decreased along draw direction.Namely the limit of inner terminal
Position tooth height is maximum.The height of corresponding limiting tooth increases, and limiting tooth also increases the stress of stretching structure, therefore through slot 13 and the
The distance at 2 edge of one stretching structure 1 and the second stretching structure reduces along the draw direction.The variation of the height and distance is into one
Step is adapted with human body production process, extends the service life of Artificial Rib.
As shown in Figure 3 and Figure 4, further, the limiting tooth 5 is right angled triangle teeth, and the position limiting structure is institute
State double set one's teeth on edge 6 or the card slots 10 in the track raised on track.
Specifically, Artificial Rib first stretching structure 1 and the second stretching structure 2 of the present embodiment pass through in elongated cavity 3
The drawing and pulling type track of portion's setting completes biaxial tension.First stretching structure 1 and the second stretching structure 2 are placed in the elongated cavity 3
One end is provided with limiting tooth 5, as shown in figure 3, the limiting tooth 5 is triangle teeth, the position limiting structure is and the limit
Reversed double of tooth 5 set one's teeth on edge 6；As shown in figure 4, the limiting tooth 5 be triangle teeth, the position limiting structure may be with it is described
The reversed card slot 10 of limiting tooth 5.Limiting tooth can also be other shapes.When the first stretching structure 1 and the second stretching structure 2 from this
When stretching out inside elongated cavity 3, pass through the through slot 13 being arranged inside the first stretching structure 1 and the second stretching structure 2, limiting tooth
5 inwardly deformation occurs, after moving out to position limiting structure position, which prevents counter motion.
Further, as shown in Fig. 2, the elongated cavity 3 and first stretching structure 1, second stretching structure 2
Closed-loop 11 is arranged in joining place, and described 11 one end of closed-loop and the elongated cavity are clamped, and reinforcing ring is arranged in the other end.
Specifically, as shown in fig. 7, in elongated cavity 3 and the first stretching structure 1, the second stretching structure 2 in the present embodiment
Closed-loop 11 is arranged in junction, which can prevent tissue from growing into elongated cavity.Lead to the first stretching structure 1 and second
Stretching structure 2 can not stretch out.One end that the closed-loop 11 and elongated cavity 3 are clamped can be ring structure, or saw
Tooth-shape structure is wherein provided with sawtooth 15 in closed-loop 11, the card slot 16 to match with zigzag fashion is provided on elongated cavity 3.
Reinforcing ring 14 is arranged in the other end, further strengthens the leakproofness between the closed-loop 11 and stretching structure.
As shown in fig. 6, further, broached-tooth design 17 is arranged in the bending place of the buckle 4, and the broached-tooth design 17 is
PEEK material.
Specifically, the diameter of breastbone and vertebra can also become larger during growth in humans.Therefore, described in the present embodiment
The height of sawtooth 17 is 1mm, the growing space for later period breastbone and vertebra.Solve the junction of connecting pin and breastbone and vertebra
The problem of limitation growth.
Further, first stretching structure 1, the second stretching structure 2, elongated cavity 3 and buckle 4 are all made of titanium conjunction
Gold, the titanium alloy outer surface are coated with Peek layers.
Specifically, the Artificial Rib Each part of the present embodiment, which is all made of titanium alloy outer surface, sprays Peek layers.
Peek has self-lubrication, good biocompatibility, and its elasticity modulus as people's bone, the people of adjustable titanium alloy preparation
The elasticity modulus of work bone is allowed to preferably match with human skeleton's elasticity modulus, and toughness and intensity are high.
Further, described peek layers include: be covered on the titanium alloy surface base and be set to the base it
On surface layer, the surface layer is equidistant rough honeycomb.
Specifically, titanium alloy surface is completely covered for peek layers of the present embodiment of base.Make up the people of titanium alloy preparation
Work flexible bone modulus has caused by larger difference compared with human skeleton, generates stress shielding, bone resorption, bone inflammation after being implanted into human body
The problems such as.Surface layer on herein, for equidistant rough honeycomb.The honeycomb is specifically in 3D printing process
In each column or row be wavy surfaces, differ 1/2 wave crest between an adjacent row or column.And so on, as shown in figure 8, table
Layer forms rough honeycomb 19 at equal intervals.Be conducive to surrounding tissue and seek connections with growth.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (9)
1. a kind of Artificial Rib characterized by comprising
First stretching structure, the second stretching structure and elongated cavity；
First stretching structure one end is the first connecting pin, and second stretching structure one end is second connection end, described the
One stretching structure, second stretching structure the other end be built in the both ends of the elongated cavity respectively, and can be from the stretching
It is intracavitary to stretch out respectively；
Drawing and pulling type track is arranged in the inside of the elongated cavity, and first stretching structure and the second stretching structure are placed in the stretching
The two sides of intracavitary one end are provided with limiting tooth, and the two sides of the track are respectively arranged with the limit to match with the limiting tooth
Structure, the inclined-plane of the limiting tooth and the angle of draw direction are greater than 90 degree, first stretching structure and the second stretching structure
Middle part correspond to the position of the limiting tooth and open up through slot；
The connecting pin setting buckle of first stretching structure, the second stretching structure, one end of the buckle and described first is drawn
It is hinged to stretch structure, the connecting pin of the second stretching structure, the other end opens up through-hole, is fixedly connected by bolt with vertebra or breastbone.
2. Artificial Rib according to claim 1, which is characterized in that first stretching structure and the second stretching structure position
The first limited block is set in the corresponding through slot front end of first limiting tooth of draw direction, the elongated cavity both ends are provided with and institute
State matched second limited block of the first limited block.
3. Artificial Rib according to claim 2, which is characterized in that the width of first limited block is less than the through slot
Width, the two sides setting first side through slot and second side through slot of the limited block, the first side through slot, described the
The overall width of dual side-edge through slot and first limited block is equal with the through slot, the first side through slot and described second
The length of side through slot is greater than the length of first limited block, the top of the first side through slot and the second side through slot
End setting circular hole, the first side through slot and the interior injection peek material of the second side through slot.
4. Artificial Rib according to claim 1, which is characterized in that the limiting tooth is right angled triangle teeth, described
Position limiting structure is raised on the track double to set one's teeth on edge or the card slot in the track.
5. Artificial Rib according to claim 1, which is characterized in that the height of the limiting tooth is successively passed along draw direction
Subtract, and the through slot reduces at a distance from first stretching structure, the second stretching structure edge along the draw direction.
6. Artificial Rib according to claim 1, which is characterized in that the elongated cavity and first stretching structure, institute
The joining place setting closed-loop of the second stretching structure is stated, described closed-loop one end and the elongated cavity are clamped, and other end setting adds
Gu ring.
7. Artificial Rib according to claim 1, which is characterized in that broached-tooth design, institute is arranged in the bending place of the buckle
Stating broached-tooth design is PEEK material.
8. Artificial Rib according to claim 1, which is characterized in that first stretching structure, is drawn the second stretching structure
It stretches chamber and buckle is all made of titanium alloy, the titanium alloy outer surface is coated with peek layers.
9. Artificial Rib according to claim 8, which is characterized in that described peek layers includes: to be covered on the titanium alloy
The base on surface and the surface layer being set on the base, the surface layer are equidistant rough honeycomb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271864.2U CN208910585U (en) | 2017-09-29 | 2017-09-29 | A kind of Artificial Rib |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721271864.2U CN208910585U (en) | 2017-09-29 | 2017-09-29 | A kind of Artificial Rib |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208910585U true CN208910585U (en) | 2019-05-31 |
Family
ID=66692481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721271864.2U Expired - Fee Related CN208910585U (en) | 2017-09-29 | 2017-09-29 | A kind of Artificial Rib |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208910585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107550603A (en) * | 2017-09-29 | 2018-01-09 | 大连派思益科技有限公司 | A kind of Artificial Rib |
-
2017
- 2017-09-29 CN CN201721271864.2U patent/CN208910585U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107550603A (en) * | 2017-09-29 | 2018-01-09 | 大连派思益科技有限公司 | A kind of Artificial Rib |
| CN107550603B (en) * | 2017-09-29 | 2024-01-23 | 辽宁禾润新材料科技有限公司 | Artificial rib |
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Granted publication date: 20190531 Termination date: 20210929 |