CN110464442B - Intra-osseous support - Google Patents
Intra-osseous support Download PDFInfo
- Publication number
- CN110464442B CN110464442B CN201910838211.5A CN201910838211A CN110464442B CN 110464442 B CN110464442 B CN 110464442B CN 201910838211 A CN201910838211 A CN 201910838211A CN 110464442 B CN110464442 B CN 110464442B
- Authority
- CN
- China
- Prior art keywords
- support
- intraosseous
- bone
- support plates
- end portion
- 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.)
- Active
Links
- 210000000988 bone and bone Anatomy 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 21
- 230000008093 supporting effect Effects 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 3
- 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 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 230000002980 postoperative effect Effects 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 description 10
- 239000007943 implant Substances 0.000 description 5
- 230000008468 bone growth Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000017074 necrotic cell death Effects 0.000 description 4
- 239000002639 bone cement Substances 0.000 description 3
- 230000006837 decompression Effects 0.000 description 3
- 230000000735 allogeneic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000005065 subchondral bone plate Anatomy 0.000 description 2
- 238000011541 total hip replacement Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000011282 treatment Methods 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
- 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 or setting implements
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The present invention provides an intraosseous support comprising: the first end portion, the second end portion, and the deformable support portion, the deformable support portion including a plurality of support plates disposed between the first end portion and the second end portion, the plurality of support plates surrounding to form a hollow structure, the plurality of support plates having an initial state of being bent outward and an assembled state of being straightened, the support plates being changeable from the second state to the initial state under predetermined conditions. The technical scheme of the invention effectively solves the problems of high limitation of the support rod and unsatisfactory postoperative effect in the prior art.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an intraosseous support.
Background
If early femoral head necrosis is not treated in time, further development can lead to femoral head collapse, and finally total hip replacement has to be performed. However, as femoral head necrosis occurs in young and middle-aged patients, it is not suitable to prematurely perform total hip replacement. It is therefore important to delay the progression of femoral head necrosis and prevent collapse of the femoral head.
Currently, various surgeries based on "core decompression" are the more effective strategies for treating early femoral necrosis clinically. Because of the simple core decompression, the local stress concentration of the femoral head and the lack of good mechanical support of subchondral bone can be caused, and finally the collapse of the femoral head can be caused. The combination of core decompression and implant support for treatment is thus the current primary treatment strategy.
The implants commonly used mainly include: autologous bone, allogeneic bone, artificial bone, metal support rods, and the like. The simple implantation of autologous bone, allogeneic bone or artificial bone has poor supporting effect, and can be gradually absorbed along with the time, so that the long-term effect is not ideal; while the metal support rod can provide mechanical support for subchondral bone, the metal support rod is poor in bone ingrowth, is unfavorable for the integration and reconstruction of the support rod and surrounding bone tissues, and has poor long-term effect. For various improvements of the support rod, such as designing the surface of the support rod to be porous metal, designing the support rod to be hollow structure to be capable of injecting medicines and the like, although the bone ingrowth capability is improved to a certain extent, the integral bone tissue integration reconstruction effect is still poor, and the support rod still has more limitations at present, such as: the support rod has longer length and high hardness, is not convenient to be used together with other bone growth active fillers, is not easy to cut and take out, greatly increases the difficulty of the future total hip joint replacement, has high production cost, and has non-ideal bone growth in, and the like.
Disclosure of Invention
The invention aims to provide an intraosseous support to solve the problems of high limitation and unsatisfactory postoperative effect of a support rod in the prior art.
In order to achieve the above object, the present invention provides an intraosseous support comprising: the first end portion, the second end portion, and the deformable support portion, the deformable support portion including a plurality of support plates disposed between the first end portion and the second end portion, the plurality of support plates surrounding to form a hollow structure, the plurality of support plates having an initial state of being bent outward and an assembled state of being straightened, the support plates being changeable from the second state to the initial state under predetermined conditions.
Further, the first end includes an endplate and a plurality of spinous processes disposed on the endplate.
Further, the spinous processes are prismatic, and the axes of the spinous processes are parallel to the end plate and are radially arranged.
Further, the end plate is annular.
Further, at least a portion of the spinous process is attached to the endplate.
Further, the second end includes a cylindrical sidewall.
Further, the plurality of support plates are made of memory alloy.
Further, the plurality of support plates are made of nickel-titanium alloy.
Further, in the initial state, the outer surfaces of the plurality of support plates are located on the same spherical surface.
Further, a bio-coating is provided on the outer surface of the support plate.
By applying the technical scheme of the invention, an operator can implant the intraosseous support into the bone of a patient in an assembled state through a channel, the intraosseous support is changed to an initial state after implantation, and the support plate can be attached to the bone of the patient in a deformation process to support the bone. Meanwhile, as the intraosseous support has the characteristic of changing from an assembled state to an initial state, the implantation of the intraosseous support can be realized only by arranging a channel with a smaller diameter on the bone of a patient, the influence of the implantation of the intraosseous support on the patient is greatly reduced, and the dosage of fillers such as bone cement for filling the channel is further reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
Fig. 1 shows a schematic structural view of an embodiment of an intraosseous support according to the present invention in an initial state;
FIG. 2 shows a schematic top view of the intraosseous support of FIG. 1;
FIG. 3 shows a schematic cross-sectional view of the intraosseous support of FIG. 1;
FIG. 4 shows a schematic structural view of the intraosseous support of FIG. 1 in an assembled state;
FIG. 5 shows a schematic top view of the intraosseous support of FIG. 4; and
Fig. 6 shows a schematic cross-sectional structural view of the intraosseous support of fig. 4.
Wherein the above figures include the following reference numerals:
10. a first end; 11. an end plate; 12. spinous processes; 20. a second end; 30. a deformable support section; 31. and a support plate.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 6, the intraosseous support of the present embodiment includes a first end portion 10, a second end portion 20, and a deformable support portion 30. Wherein the deformable support section 30 includes a plurality of support plates 31, the plurality of support plates 31 being disposed between the first end section 10 and the second end section 20, the plurality of support plates 31 being enclosed to form a hollow structure, the plurality of support plates 31 having an initial state of being bent outward and an assembled state of being straightened, wherein "bending outward" means protruding in a direction away from the center line to form a curved surface. The support plate 31 is capable of being changed from the assembled state to the initial state under predetermined conditions.
By applying the technical scheme of the embodiment, an operator can implant the intraosseous support into the bone of the patient in the assembled state of fig. 4 through a channel, the intraosseous support is changed to the initial state shown in fig. 1 after implantation, and the supporting plate 31 can be attached to the bone of the patient in the deformation process to realize the support of the bone, so that the operation is simple and the structure is stable. Meanwhile, as the intraosseous support has the characteristic of changing from an assembled state to an initial state, the implantation of the intraosseous support can be realized only by arranging a channel with a smaller diameter on the bone of a patient, the influence of the implantation of the intraosseous support on the patient is greatly reduced, and the dosage of fillers such as bone cement for filling the channel is further reduced.
Preferably, the support plate 31 of the present embodiment is made of a nickel-titanium alloy, which is a memory alloy material having a memory property capable of being restored to an original state under a specific condition after being deformed, by a 3D printing technique. In the present embodiment, the initial state of the intraosseous support made of nitinol is a lantern-like state, and the support plate 31 is straightened to a cylindrical assembled state in a low-temperature environment. The assembled state greatly reduces the radial dimension of the intraosseous support relative to the initial state, facilitating passage of the intraosseous support through the implantation channel. When the intraosseous support is implanted into a bone of a patient, the support plate 31 can be changed to an initial state under a certain temperature condition or in a certain temperature section along with the temperature rise of the intraosseous support, and then is attached to the bone to realize a supporting function. In addition, in the process that the supporting plate is changed from the assembly state to the initial state, pressure can be continuously applied to the bone, the bone growth is stimulated, and the rehabilitation of a patient is facilitated.
As shown in fig. 2 and 3, the first end portion 10 of the present embodiment includes an end plate 11 and a plurality of spinous processes 12 provided on the end plate 11, and the second end portion 20 has a cylindrical thin-walled structure. The end plate 11 is in the shape of a ring, and one part of each spinous process 12 is connected to the end plate 11, and the other part is arranged in a suspending manner. A buttress plate 31 is provided on the endplate 11 and the spinous process 12 extends into the bone as the intraosseous support is implanted into the bone to limit movement and rotation of the intraosseous support within the bone.
Preferably, as shown in fig. 2 and 3, the spinous process 12 of the present embodiment has a triangular prism shape, and the axis of the spinous process 12 is parallel to the end plate 11 and is radially arranged such that the tip of the triangular prism faces the bone, so that the spinous process 12 protrudes into the bone.
Preferably, in the initial state, the outer surfaces of the respective support plates 31 are located on the same spherical surface.
To further promote bone growth in the patient, the outer surface of the support plate 31 of the present embodiment is provided with a bio-coating, such as an HA coating, to increase bioactivity.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
The operator can implant the intraosseous support ware in patient's bone under the assembled state through a passageway, and the intraosseous support ware changes to initial state after implanting, and the backup pad can be laminated with patient's bone in the deformation process and realize the support to the bone, above-mentioned easy operation, stable in structure. Meanwhile, as the intraosseous support has the characteristic of changing from an assembled state to an initial state, the implantation of the intraosseous support can be realized only by arranging a channel with a smaller diameter on the bone of a patient, the influence of the implantation of the intraosseous support on the patient is greatly reduced, and the dosage of fillers such as bone cement for filling the channel is further reduced.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An intraosseous support, comprising:
A first end portion (10), a second end portion (20) and a deformable support portion (30), the deformable support portion (30) comprising a plurality of support plates (31), a plurality of support plates (31) being disposed between the first end portion (10) and the second end portion (20), the plurality of support plates (31) surrounding to form a hollow structure, the plurality of support plates (31) having an initial state of being bent outwardly and an assembled state of being straightened, the support plates (31) being changeable from the assembled state to the initial state under predetermined conditions;
The first end (10) comprises an end plate (11) and a plurality of spinous processes (12) provided on the end plate (11); the end plate (11) is in a circular ring shape, at least part of the spinous process (12) is connected to the end plate (11), and the spinous process (12) extends into bone when the bone internal support is implanted into the bone so as to limit the movement and rotation of the bone internal support in the bone;
the outer surface of the supporting plate (31) is provided with a biological coating.
2. The intraosseous support according to claim 1, wherein the spinous processes (12) are prismatic, the axes of a plurality of the spinous processes (12) being parallel to the end plate (11) and arranged radially.
3. The intraosseous support according to claim 1, wherein the second end (20) comprises a cylindrical side wall.
4. The intraosseous support according to claim 1, wherein a material of the plurality of support plates (31) is a memory alloy.
5. The intraosseous support according to claim 1, wherein a material of the plurality of support plates (31) is nitinol.
6. The intraosseous support according to claim 1, wherein in the initial state, the outer surfaces of a plurality of the support plates (31) are located on the same spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838211.5A CN110464442B (en) | 2019-09-05 | 2019-09-05 | Intra-osseous support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838211.5A CN110464442B (en) | 2019-09-05 | 2019-09-05 | Intra-osseous support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110464442A CN110464442A (en) | 2019-11-19 |
| CN110464442B true CN110464442B (en) | 2024-05-28 |
Family
ID=68514925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910838211.5A Active CN110464442B (en) | 2019-09-05 | 2019-09-05 | Intra-osseous support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110464442B (en) |
Families Citing this family (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 |
| 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 |
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 |
| 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/CN110464442B/en active Active
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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110464442A (en) | 2019-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109481098B (en) | toe joint prosthesis | |
| US7892290B2 (en) | Fluted sleeve hip prosthesis for modular stem | |
| EP2967676B1 (en) | Fixation of orthopaedic devices | |
| US20090204226A1 (en) | Proximally Self-Locking Long Bone Prosthesis | |
| CN109481097B (en) | Ankle joint prosthesis | |
| JP2012513882A (en) | Vertebral distraction and fusion method and apparatus using flexure members | |
| EP1324725A2 (en) | Artificial disc | |
| CN111920552B (en) | Intervertebral fusion device with multiple through holes | |
| CN110464442B (en) | Intra-osseous support | |
| CN201500170U (en) | Supporting rod embedded in thighbone | |
| JP2006515780A (en) | Artificial nucleus pulposus and injection method thereof | |
| CN111134904A (en) | Bionic artificial hip joint | |
| CN104688390A (en) | Net-shaped supporting device | |
| CN211131344U (en) | Bone internal support device | |
| CN204723219U (en) | A kind of mesh-supported device | |
| US8562349B2 (en) | Dental implant that increases bone support | |
| GB2495272A (en) | Bone implant comprising auxetic material | |
| EP3838217B1 (en) | Dental implant with porous ingrowth material | |
| CN213993857U (en) | Bone defect implant based on metal rubber | |
| CN214761627U (en) | Scaphoid core type prosthesis made of metal tantalum with good mechanical property | |
| JP2007289551A (en) | Bone prosthesis | |
| CN204618380U (en) | A kind of eyelid retractor being used for the treatment of femur head necrosis | |
| CN214632509U (en) | Femoral stem | |
| CN110368149B (en) | Intervertebral disc prosthesis | |
| Carvalho et al. | Finite element analysis of a dental implant system with an elastomeric stress barrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |