CN105213081A - The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer - Google Patents
The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer Download PDFInfo
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- CN105213081A CN105213081A CN201510527707.2A CN201510527707A CN105213081A CN 105213081 A CN105213081 A CN 105213081A CN 201510527707 A CN201510527707 A CN 201510527707A CN 105213081 A CN105213081 A CN 105213081A
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Abstract
The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer, relates to a kind of fracture fixation device.The present invention lacks elasticity for solving traditional fracture fixation device, and when there is swelling after limb trauma, easily urging tissue may cause again the problem of displacement fracture because cast crosses pine after causing poor arterial inflow, detumescence.The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer, its shape is the tubular identical with the limbs shape of fracture; The composite material solidification that this fracture fixation device shape memory polymer material or shape-memory polymer and reinforcing material are combined into forms; According to the change of external environment, shape-memory polymer, based on the shape memory effect changed between glassy state and rubbery state, produces the adaptivity of fracture fixation device.The present invention is applicable to the fixing of fracture.
Description
Technical field
The present invention relates to a kind of fracture fixation device.
Background technology
At present, existing major fracture is fixed as plaster bandage and fixes or wooden splint is fixed, although these two kinds of fixed forms can ensure the location of skeleton, but these two kinds of fixed forms all accurately can not be located skeleton, especially, after limb activity, the accurate location of skeleton can not just more be ensured.
Meanwhile, plaster bandage is fixed or wooden splint fixedly lacks elasticity, and when there is swelling after limb trauma, easily urging tissue causes poor arterial inflow, and once detumescence, may cause displacement fracture again because cast crosses pine.
Further, the fixed form poor air permeability that plaster bandage is fixing, nonelastic, tightness regulates very difficult; Plaster bandage is fixed or the lower articular that generally need exceed fractures is fixed by wooden splint, joint movement function exercise cannot be carried out, easily cause ankylosis (as plaster bandage), easily make fracture redisplacement, too tightly can produce pressure ulcer, ischemic muscular spasm, even the problem such as extremity gangrene (as wooden splint).
Summary of the invention
The present invention lacks elasticity for solving traditional fracture fixation device, and when there is swelling after limb trauma, easily urging tissue may cause again the problem of displacement fracture because cast crosses pine after causing poor arterial inflow, detumescence.
The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer, its shape is the tubular identical with the limbs shape of fracture; The composite material solidification that this fracture fixation device shape memory polymer material or shape-memory polymer and reinforcing material are combined into forms;
According to the change of external environment, shape-memory polymer, based on the shape memory effect changed between glassy state and rubbery state, makes fracture fixation device show adaptivity;
The diameter of fixture original shape or girth are less than diameter or the girth of fracture limbs;
Change fixture diameter or girth before installation, make its diameter being greater than fracture limbs or girth; Obtain the fixture of first time temporary shapes;
By obtain first time temporary shapes fixture be arranged on fracture body part, change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of second time temporary shapes;
To be obstructed due to venous return and muscle spasm makes limb swelling at the fracture initial stage, diameter or girth increase, about one week afterwards, the alleviation of painful spasm, venous return improvement, and the limbs diameter of fracture or girth diminish; Change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of third time temporary shapes;
According to diameter or the girth of fracture, constantly changed diameter or the girth of fixture by environmental stimulus, until the limbs diameter of fracture or girth no longer change.
The present invention has following beneficial effect:
Fracture fixation device of the present invention not only accurately can be located the skeleton of fracture, also can be accurate and suitable when there is swelling after limb trauma the skeleton of fracture be accurately located, and after extremity repercussive, can according to the change of external environment, memory polymer is stimulated to produce shape memory effect based on changing between glassy state and rubbery state, according to the situation of change adjustment of fracture injury, make injury be in optimal stationary state always; Adaptivity is produced to fracture condition; Displacement fracture can not be caused because fracture fixation device cast crosses pine.
Fracture fixation device good permeability of the present invention, flexible simultaneously, energy adjusting elasticity degree, joint can be carried out activity and be taken exercise, and avoids ankylosis, also not easily makes fracture redisplacement, avoid and produce pressure ulcer, ischemic muscular spasm, the even problem of extremity gangrene.
Accompanying drawing explanation
Fig. 1 is the original shape schematic diagram of the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer;
Fig. 2 is the first time temporary shapes schematic diagram of the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer;
Fig. 3, Fig. 4 are that the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer is being in the mounting means schematic diagram under first time temporary shapes;
Fig. 5 be Shape-based interpolation memory polymer intelligent adaptive human fracture fixture be in second time temporary shapes do not subside a swelling under stationary state schematic diagram;
Fig. 6 is that the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer is being in the stationary state schematic diagram under third time temporary shapes detumescence;
Detailed description of the invention
Detailed description of the invention one: composition graphs 1-Fig. 6 illustrates present embodiment,
The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer, its shape is the tubular identical with the limbs shape of fracture; The composite material solidification that this fracture fixation device shape memory polymer material or shape-memory polymer and reinforcing material are combined into forms;
According to the change of external environment, shape-memory polymer, based on the shape memory effect changed between glassy state and rubbery state, makes fracture fixation device show adaptivity;
The diameter of fixture original shape or girth are less than diameter or the girth of fracture limbs;
Change fixture diameter or girth before installation, make its diameter being greater than fracture limbs or girth; Obtain the fixture of first time temporary shapes;
By obtain first time temporary shapes fixture be arranged on fracture body part, change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of second time temporary shapes;
To be obstructed due to venous return and muscle spasm makes limb swelling at the fracture initial stage, diameter or girth increase, about one week afterwards, the alleviation of painful spasm, venous return improvement, and the limbs diameter of fracture or girth diminish; Change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of third time temporary shapes;
According to diameter or the girth of fracture, constantly changed diameter or the girth of fixture by environmental stimulus, until the limbs diameter of fracture or girth no longer change.
Detailed description of the invention two:
Containing reinforcing material in shape memory polymer material described in present embodiment.
Other step is identical with detailed description of the invention one with parameter.
Detailed description of the invention three:
Shape memory polymer material described in present embodiment is thermoplasticity shape-memory polymer, thermoset shape memory polymer or the complex of the two.
Other step is identical with one of detailed description of the invention one to two with parameter.
Detailed description of the invention four:
Shape memory polymer material described in present embodiment be shape memory polyurethane resin, the thermoplasticity shape-memory polymer of epoxies, the thermoset shape memory polymer, phenylethylene shape-memory polymer, cyanate shape-memory polymer, BMI shape-memory polymer, polyimides shape-memory polymer, polycaprolactone shape-memory polymer etc. of epoxies one or more.
Other step is identical with one of detailed description of the invention one to two with parameter.
Detailed description of the invention five:
Reinforcing material described in present embodiment is one or more in graphite fibre, carbon fiber, glass fibre, Kevlar fiber or more the materials such as fabric, boron fibre, silicon carbide fibre, carbon dust, white carbon black, CNT and nikel powder.
Other step is identical with detailed description of the invention three or four with parameter.
Detailed description of the invention six:
The content of reinforcing material described in present embodiment is 1%-40%, the dynamics size that concrete ratio produces fixture depending on injury.
Other step is identical with detailed description of the invention five with parameter.
Detailed description of the invention seven:
External environment described in present embodiment is one or more factors in heat, solution, pH value, electricity, magnetic, electromagnetism, light.
According to the kind of shape-memory polymer or the kind of shape-memory polymer and reinforcing material, the influence factor's environment selecting one or more different stimulates shape-memory polymer or composite, make the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer reach transfer of shapes condition, realize its adaptive function.
The intelligent adaptive fracture fixation device of shape-memory polymer can substitute the fixing and wooden cradle-splint of plaster bandage and fix; The intelligent adaptive fracture fixation device of shape-memory polymer is particularly useful for femur, the long bone fractures such as tibia and long bone joint dislocation.
Other step is identical with detailed description of the invention five with parameter.
Detailed description of the invention eight:
The surface of the intelligent adaptive fracture fixation device of the Shape-based interpolation memory polymer described in present embodiment is provided with air-vent.
Other step is identical with detailed description of the invention five with parameter.
Detailed description of the invention nine:
The using method of the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer, comprises the following steps:
Step 1, position residing for fracture determine the kind of shape-memory polymer, or the kind of shape-memory polymer and wild phase;
Step 2, prepared the intelligent adaptive human fracture fixture of Shape-based interpolation memory polymer by the particular mold made according to injury, obtain the permanent shape of bone fixator;
The diameter of the fixture original shape prepared or girth are less than diameter or the girth of fracture limbs;
Change fixture diameter or girth before step 3, installation, make its diameter being greater than fracture limbs or girth; Obtain the fixture of first time temporary shapes;
Step 4, by obtain first time temporary shapes fixture be arranged on fracture body part, diameter or the girth of fixture is changed by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of second time temporary shapes;
Step 5, to be obstructed due to venous return and muscle spasm makes limb swelling at the fracture initial stage, diameter or girth increase, about one week afterwards, the alleviation of painful spasm, venous return improvement, and the limbs diameter of fracture or girth diminish; Change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of third time temporary shapes;
Step 6, different conditions (diameter or girth) according to fracture, diameter or the girth of fixture is constantly changed by environmental stimulus, fixture is made constantly to adapt to the limbs state of fracture, until the limbs diameter of fracture or girth no longer change.
Claims (8)
1. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer, its shape is the tubular identical with the limbs shape of fracture; It is characterized in that: the solidification of this fracture fixation device shape memory polymer material forms;
According to the change of external environment, shape-memory polymer, based on the shape memory effect changed between glassy state and rubbery state, makes fracture fixation device show adaptivity;
The diameter of fixture original shape or girth are less than diameter or the girth of fracture limbs;
Change fixture diameter or girth before installation, make its diameter being greater than fracture limbs or girth; Obtain the fixture of first time temporary shapes;
By obtain first time temporary shapes fixture be arranged on fracture body part, change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of second time temporary shapes;
To be obstructed due to venous return and muscle spasm makes limb swelling at the fracture initial stage, diameter or girth increase, about one week afterwards, the alleviation of painful spasm, venous return improvement, and the limbs diameter of fracture or girth diminish; Change the diameter of fixture or girth by environmental stimulus, make it fixedly be in most suitable state to fracture, obtain the fixture of third time temporary shapes;
According to diameter or the girth of fracture, constantly changed diameter or the girth of fixture by environmental stimulus, until the limbs diameter of fracture or girth no longer change.
2. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 1, is characterized in that in described shape memory polymer material containing reinforcing material.
3. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 2, is characterized in that described shape memory polymer material is thermoplasticity shape-memory polymer, thermoset shape memory polymer or the complex of the two.
4. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 2, it is characterized in that described shape memory polymer material be shape memory polyurethane resin, the thermoplasticity shape-memory polymer of epoxies, the thermoset shape memory polymer of epoxies, phenylethylene shape-memory polymer, cyanate shape-memory polymer, BMI shape-memory polymer, polyimides shape-memory polymer, polycaprolactone shape-memory polymer one or more.
5. the intelligent adaptive fracture fixation device of the Shape-based interpolation memory polymer according to claim 3 or 4, is characterized in that described reinforcing material is one or more in graphite fibre, carbon fiber, glass fibre, Kevlar fiber or more fabric, boron fibre, silicon carbide fibre, carbon dust, white carbon black, CNT and nikel powder.
6. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 5, is characterized in that the content of described reinforcing material is 1%-40%.
7. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 5, is characterized in that described external environment is one or more factors in heat, solution, pH value, electricity, magnetic, electromagnetism, light.
8. the intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer according to claim 5, is characterized in that the surface of the intelligent adaptive fracture fixation device of described Shape-based interpolation memory polymer is provided with air-vent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510527707.2A CN105213081A (en) | 2015-08-25 | 2015-08-25 | The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer |
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| CN201510527707.2A CN105213081A (en) | 2015-08-25 | 2015-08-25 | The intelligent adaptive fracture fixation device of Shape-based interpolation memory polymer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890391A (en) * | 2017-11-18 | 2018-04-10 | 安徽玉然经编科技有限公司 | A kind of memory-type medical bandage for fracture fixation |
| CN108478845A (en) * | 2018-03-30 | 2018-09-04 | 王敏 | A kind of preparation method of modified polyurethane prepolymer medical bandage |
| CN111920672A (en) * | 2020-07-10 | 2020-11-13 | 中国科学院深圳先进技术研究院 | Soft external chest pressing device |
| CN112190390A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工业大学 | Shape memory low-temperature treatment neck sleeve and using method thereof |
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| CN2902232Y (en) * | 2006-03-27 | 2007-05-23 | 易民 | Thermoplastic fixation plate |
| CN201631444U (en) * | 2009-12-29 | 2010-11-17 | 上海交通大学医学院附属第三人民医院 | Fracture fixing apparatus |
| CN102421394A (en) * | 2009-02-24 | 2012-04-18 | 伊克索斯公司 | Composite material for custom fitted products |
| CN102430156A (en) * | 2011-12-05 | 2012-05-02 | 泰山医学院 | Medical external fixation material with shape memory function, and preparation method thereof |
| CN103239315A (en) * | 2013-04-27 | 2013-08-14 | 嘉兴好事帮医疗器械有限公司 | Limb injury external fixator and manufacturing process thereof |
| CN203763328U (en) * | 2014-04-21 | 2014-08-13 | 广州路万医疗器材有限公司 | Medical memory guard board |
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| CN2438432Y (en) * | 2000-09-07 | 2001-07-11 | 王义祥 | Medical high polymer external splints |
| CN1502313A (en) * | 2002-11-26 | 2004-06-09 | 上海第二医科大学附属仁济医院 | Shape memory bone fixing splint |
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| CN103239315A (en) * | 2013-04-27 | 2013-08-14 | 嘉兴好事帮医疗器械有限公司 | Limb injury external fixator and manufacturing process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107890391A (en) * | 2017-11-18 | 2018-04-10 | 安徽玉然经编科技有限公司 | A kind of memory-type medical bandage for fracture fixation |
| CN107890391B (en) * | 2017-11-18 | 2020-08-04 | 安徽玉然经编科技有限公司 | Memory type medical bandage for fracture fixation |
| CN108478845A (en) * | 2018-03-30 | 2018-09-04 | 王敏 | A kind of preparation method of modified polyurethane prepolymer medical bandage |
| CN111920672A (en) * | 2020-07-10 | 2020-11-13 | 中国科学院深圳先进技术研究院 | Soft external chest pressing device |
| CN112190390A (en) * | 2020-10-09 | 2021-01-08 | 哈尔滨工业大学 | Shape memory low-temperature treatment neck sleeve and using method thereof |
| CN112190390B (en) * | 2020-10-09 | 2022-05-27 | 哈尔滨工业大学 | Shape memory low-temperature treatment neck sleeve and using method thereof |
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Application publication date: 20160106 |