CN110464442A - Bone inner support device - Google Patents
Bone inner support device Download PDFInfo
- Publication number
- CN110464442A CN110464442A CN201910838211.5A CN201910838211A CN110464442A CN 110464442 A CN110464442 A CN 110464442A CN 201910838211 A CN201910838211 A CN 201910838211A CN 110464442 A CN110464442 A CN 110464442A
- Authority
- CN
- China
- Prior art keywords
- support device
- inner support
- bone inner
- bone
- plate
- 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.)
- Pending
Links
- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 6
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 2
- 230000002980 postoperative effect Effects 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 description 11
- 108010048734 sclerotin Proteins 0.000 description 11
- 238000010586 diagram Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 4
- 206010028851 Necrosis Diseases 0.000 description 3
- 239000002639 bone cement Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000017074 necrotic cell death Effects 0.000 description 3
- 210000002391 femur head Anatomy 0.000 description 2
- 210000005065 subchondral bone plate Anatomy 0.000 description 2
- 230000008467 tissue growth Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 206010031264 Osteonecrosis Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011541 total hip replacement Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
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
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/885—Tools for expanding or compacting bones or discs or cavities therein
Abstract
The present invention provides a kind of bone inner support devices, it include: first end, the second end and deformable support portion, deformable support portion includes multiple support plates, multiple support plates are arranged between first end and the second end, multiple support plates surround to form hollow structure, multiple support plates have the original state being bent outwardly and the assembled state stretched, and support plate can change in predefined conditions from the second state to original state.Technical solution of the present invention efficiently solves the problems, such as that support stick limitation is high in the prior art, postoperative effect is undesirable.
Description
Technical field
The present invention relates to medical instruments fields, in particular to a kind of bone inner support device.
Background technique
If femoral head osteonecrosis, without treating in time, further development will lead to collapse of femoral head, finally have to
Carry out total hip replacement.However, being not suitable for prematurely carrying out full hip pass since caput femoris necrosis mostly occurs in middle-young patients
Section displacement.Therefore how to delay the process of caput femoris necrosis and prevent collapse of femoral head from seeming most important.
Currently, the various operations based on " core decompression " are the more effective plans of clinical treatment early stage femur necrosis
Slightly.Since simple core decompression art will lead to femoral head stress raisers and the good mechanical support of subchondral bone shortage, most
It can cause collapse of femoral head eventually.Therefore it is current primary treatment strategy that the support of core decompression joint implantation material, which carries out treatment,.
Common implantation material specifically includes that autologous bone, homogeneous allogenic bone, artificial bone, metal support stick etc..Simple is self
The implantation of bone, homogeneous allogenic bone or artificial bone, support effect is poor, and can gradually be absorbed over time, far
Phase effect is undesirable；And although metal support stick can provide mechanical support for subchondral bone, Bone Ingrowth is bad, is unfavorable for
The integration of support stick and bone tissue is rebuild, and long-term effect is poor.And the various improvement for support stick, such as surface design
For porous metals, drug etc. can be injected by being designed as hollow structure, whole although improving Bone Ingrowth ability to a certain extent
The osseointegration of body rebuilds effect or not good enough, and support stick still has more limitation at present, such as: support stick length
Longer, hardness is high, is not easy to be used in combination with other bone uptake active fillers, is not easy to cut and take out, substantially increases
The difficulty and high production cost of the following replacement of total hip, Bone Ingrowth are undesirable etc..
Summary of the invention
The present invention is intended to provide a kind of bone inner support device, to solve support stick limitation height, postoperative effect in the prior art
Undesirable problem.
To achieve the goals above, the present invention provides a kind of bone inner support devices, comprising: first end, the second end and
Deformable support portion, deformable support portion include multiple support plates, the setting of multiple support plates first end and the second end it
Between, multiple support plates surround to form hollow structure, and multiple support plates have the original state being bent outwardly and the assembly stretched
State, support plate can change in predefined conditions from the second state to original state.
Further, first end includes end plate and multiple spinous process for being arranged on end plate.
Further, spinous process is in prism-shaped, and the axis of multiple spinous process is parallel to end plate and radial arrangement.
Further, end plate is annular in shape.
Further, at least partly spinous process is connected on end plate.
Further, the second end includes cylindrical sidewall.
Further, the material of multiple support plates is memorial alloy.
Further, the material of multiple support plates is Nitinol.
Further, in the initial state, the outer surface of multiple support plates is located on same spherical surface.
Further, biological coating is provided on the outer surface of support plate.
It applies the technical scheme of the present invention, bone inner support device can be implanted by operator in the assembled condition by a channel
In patient bone, bone inner support device changes to original state after the implantation, and support plate can be pasted with patient's sclerotin in deformation process
It closes and realizes support to sclerotin, aforesaid operations are simple, stable structure.Simultaneously as bone inner support device have from assembled state to
The characteristics of original state changes, the lesser channel of diameter is only opened up on subjects bones can be realized the implantation of bone inner support device,
Influence of the bone inner support device implantation to patient is dramatically reduced, and then also reduces the fillers such as the bone cement for filling the channel
Dosage.
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:
Fig. 1 shows structural schematic diagram of the embodiment in original state of bone inner support device according to the present invention；
Fig. 2 shows the overlooking structure diagrams of the bone inner support device of Fig. 1；
Fig. 3 shows the schematic cross-sectional view of the bone inner support device of Fig. 1；
Fig. 4 shows structural schematic diagram of the bone inner support device in assembled state of Fig. 1；
Fig. 5 shows the overlooking structure diagram of the bone inner support device of Fig. 4；And
Fig. 6 shows the schematic cross-sectional view of the bone inner support device of Fig. 4.
Wherein, the above drawings include the following reference numerals:
10, first end；11, end plate；12, spinous process；20, the second end；30, deformable support portion；31, support plate.
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.
As shown in Figures 1 to 6, the bone inner support device of the present embodiment includes first end 10, the second end 20 and deformable
Support portion 30.Wherein, deformable support portion 30 includes multiple support plates 31, and the setting of multiple support plates 31 is in first end 10 and the
Between two ends 20, multiple encirclements of support plate 31 form hollow structure, and multiple support plates 31 have the original state being bent outwardly
And the assembled state stretched, " being bent outwardly " here refer to protruding to form curved surface to the direction far from center line.Support
Plate 31 can change in predefined conditions from assembled state to original state.
Using the technical solution of the present embodiment, operator can by a channel by bone inner support device Fig. 4 assembly shape
It is implanted into patient bone under state, bone inner support device changes to original state shown in FIG. 1 after the implantation, the support plate in deformation process
31 can be bonded with patient's sclerotin and realize support to sclerotin, and aforesaid operations are simple, stable structure.Simultaneously as bone inner support
Device has the characteristics that change from assembled state to original state, and the lesser channel of diameter is only opened up on subjects bones can be realized
The implantation of bone inner support device dramatically reduces bone inner support device and is implanted into influence to patient, and then also reduces filling this is logical
The dosage of the fillers such as the bone cement in road.
Preferably, the support plate 31 of the present embodiment is made up of Nitinol of 3D printing technique, and Nitinol is a kind of
Memory alloy material can restore after deformation occurs to reset condition under given conditions with memory characteristic.In this implementation
In example, the original state of bone inner support device made of Nitinol is to be similar to the state of lantern, and will support at low ambient temperatures
Plate 31 is straightened to form cylindric assembled state.Compared to original state, assembled state significantly reduces bone inner support device
Radial dimension is conducive to bone inner support device and passes through implantation channel.After bone inner support device is implanted into subjects bones, with bone inner support
The temperature of device increases, and support plate 31 can change under the conditions of wherein a certain temperature or in some temperature section to original state,
And then be bonded with sclerotin, realize supporting role.Also, during support plate changes from assembled state to original state, energy
It is enough lasting to sclerotin application pressure, bone tissue growth is stimulated, Rehabilitation is conducive to.
As shown in Figures 2 and 3, the first end 10 of the present embodiment includes end plate 11 and the multiple spine being arranged on end plate 11
Prominent 12, the second end 20 is tubular thin-wall construction.End plate 11 is annular in shape, and a part of each spinous process 12 is connected to end plate
On 11, another part suspension setting.Support plate 31 is arranged on end plate 11, and spinous process 12 is protruded into when bone inner support device is implanted into bone
Into sclerotin, to limit movement and rotation of the bone inner support device in bone.
Preferably, as shown in Figures 2 and 3, the spinous process 12 of the present embodiment is in triangular prism shape, and the axis of spinous process 12 is parallel to end
Plate 11 and radial arrangement, make the tip of triangular prism towards sclerotin, protrude into sclerotin convenient for spinous process 12.
Preferably, in the initial state, the outer surface of each support plate 31 is located on same spherical surface.
Further to promote patient's bone tissue growth, it is provided with biological coating on the outer surface of the support plate 31 of the present embodiment,
Such as HA coating is to increase bioactivity.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
Bone inner support device can be implanted into patient bone by operator in the assembled condition by a channel, and bone inner support device exists
Changing after implantation to original state, support plate can be bonded the support realized to sclerotin with patient's sclerotin in deformation process, on
State easy to operate, stable structure.Simultaneously as bone inner support device has the characteristics that change from assembled state to original state, only
The lesser channel of diameter is opened up on subjects bones can be realized the implantation of bone inner support device, dramatically reduce bone inner support device
It is implanted into the influence to patient, and then also reduces the dosage of the fillers such as the bone cement for filling the channel.
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 (10)
1. a kind of bone inner support device characterized by comprising
First end (10), the second end (20) and deformable support portion (30), the deformable support portion (30) includes multiple
Support plate (31), multiple support plates (31) are arranged between the first end (10) and the second end (20), more
A support plate (31), which is surrounded, forms hollow structure, multiple support plates (31) have the original state being bent outwardly and
The assembled state stretched, the support plate (31) can change in predefined conditions from the assembled state to the original state
Become.
2. bone inner support device according to claim 1, which is characterized in that the first end (10) include end plate (11) and
The multiple spinous process (12) being arranged on the end plate (11).
3. bone inner support device according to claim 2, which is characterized in that the spinous process (12) is in prism-shaped, multiple described
The axis of spinous process (12) is parallel to the end plate (11) and radial arrangement.
4. bone inner support device according to claim 2, which is characterized in that the end plate (11) is annular in shape.
5. bone inner support device according to claim 4, which is characterized in that at least partly described spinous process (12) is connected to described
On end plate (11).
6. bone inner support device according to claim 1, which is characterized in that the second end (20) includes cylindrical sidewall.
7. bone inner support device according to claim 1, which is characterized in that the material of multiple support plates (31) is memory
Alloy.
8. bone inner support device according to claim 1, which is characterized in that the material of multiple support plates (31) is NiTi
Alloy.
9. bone inner support device according to claim 1, which is characterized in that under the original state, multiple supports
The outer surface of plate (31) is located on same spherical surface.
10. bone inner support device according to claim 1, which is characterized in that be arranged on the outer surface of the support plate (31)
There is biological coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838211.5A CN110464442A (en) | 2019-09-05 | 2019-09-05 | Bone inner support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838211.5A CN110464442A (en) | 2019-09-05 | 2019-09-05 | Bone inner support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110464442A true CN110464442A (en) | 2019-11-19 |
Family
ID=68514925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910838211.5A Pending CN110464442A (en) | 2019-09-05 | 2019-09-05 | Bone inner support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110464442A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494131A (en) * | 2020-11-05 | 2021-03-16 | 北京市春立正达医疗器械股份有限公司 | Vertebral body support device |
| CN112773573A (en) * | 2021-02-10 | 2021-05-11 | 北京爱康宜诚医疗器材有限公司 | Inner support prosthesis for femoral head |
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|---|---|---|---|---|
| CN2303591Y (en) * | 1997-09-19 | 1999-01-13 | 中国人民解放军第二一一医院 | Column-bridge type contact-power-limited pressure bone-setting board |
| CN1830399A (en) * | 2006-03-16 | 2006-09-13 | 刘小勇 | Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device |
| CN2836738Y (en) * | 2005-10-25 | 2006-11-15 | 江波 | The shaped bracket that resets that is used for the treatment of the lumbar-thoracic spine compression fracture of vertabral body |
| CN101530343A (en) * | 2007-12-28 | 2009-09-16 | 比德曼莫泰赫有限公司 | Implant for stabilizing vertebrae or bones |
| CN101999926A (en) * | 2010-12-04 | 2011-04-06 | 兰州西脉记忆合金股份有限公司 | Umbrella shaped memory alloy support in femoral head |
| CN102824208A (en) * | 2011-06-16 | 2012-12-19 | 王坤正 | Nickel-titanium shape memory alloy umbrella-titanium mesh femoral head internal supporting device |
| CN104083235A (en) * | 2014-07-11 | 2014-10-08 | 嘉兴德康医疗器械有限公司 | Moldable individual spine fusion device |
| CN204411031U (en) * | 2014-12-01 | 2015-06-24 | 北京市富乐科技开发有限公司 | Strut type fusion device |
| CN104771251A (en) * | 2015-02-06 | 2015-07-15 | 潘滔 | Memory alloy auto-distraction locking interbody fusion cage and application method thereof |
| CN211131344U (en) * | 2019-09-05 | 2020-07-31 | 北京爱康宜诚医疗器材有限公司 | Bone internal support device |
-
2019
- 2019-09-05 CN CN201910838211.5A patent/CN110464442A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2303591Y (en) * | 1997-09-19 | 1999-01-13 | 中国人民解放军第二一一医院 | Column-bridge type contact-power-limited pressure bone-setting board |
| CN2836738Y (en) * | 2005-10-25 | 2006-11-15 | 江波 | The shaped bracket that resets that is used for the treatment of the lumbar-thoracic spine compression fracture of vertabral body |
| CN1830399A (en) * | 2006-03-16 | 2006-09-13 | 刘小勇 | Nickel titanium temperature memory alloy centrum compression fracture orthopedic repositor and device |
| CN101530343A (en) * | 2007-12-28 | 2009-09-16 | 比德曼莫泰赫有限公司 | Implant for stabilizing vertebrae or bones |
| CN101999926A (en) * | 2010-12-04 | 2011-04-06 | 兰州西脉记忆合金股份有限公司 | Umbrella shaped memory alloy support in femoral head |
| CN102824208A (en) * | 2011-06-16 | 2012-12-19 | 王坤正 | Nickel-titanium shape memory alloy umbrella-titanium mesh femoral head internal supporting device |
| CN104083235A (en) * | 2014-07-11 | 2014-10-08 | 嘉兴德康医疗器械有限公司 | Moldable individual spine fusion device |
| CN204411031U (en) * | 2014-12-01 | 2015-06-24 | 北京市富乐科技开发有限公司 | Strut type fusion device |
| CN104771251A (en) * | 2015-02-06 | 2015-07-15 | 潘滔 | Memory alloy auto-distraction locking interbody fusion cage and application method thereof |
| CN211131344U (en) * | 2019-09-05 | 2020-07-31 | 北京爱康宜诚医疗器材有限公司 | Bone internal support device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112494131A (en) * | 2020-11-05 | 2021-03-16 | 北京市春立正达医疗器械股份有限公司 | Vertebral body support device |
| CN112773573A (en) * | 2021-02-10 | 2021-05-11 | 北京爱康宜诚医疗器材有限公司 | Inner support prosthesis for femoral head |
| CN112773573B (en) * | 2021-02-10 | 2022-05-03 | 北京爱康宜诚医疗器材有限公司 | Inner support prosthesis for femoral head |
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