CN104485835B - A kind of biocompatibility miniature friction electromotor - Google Patents
A kind of biocompatibility miniature friction electromotor Download PDFInfo
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- CN104485835B CN104485835B CN201410728985.XA CN201410728985A CN104485835B CN 104485835 B CN104485835 B CN 104485835B CN 201410728985 A CN201410728985 A CN 201410728985A CN 104485835 B CN104485835 B CN 104485835B
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Abstract
A kind of biocompatibility miniature friction electromotor, by top crown nylon66 fiber clad, top crown Poly-L-lactic acid macromolecule is to frictional layer, frictional layer and bottom crown nylon66 fiber clad are formed by bottom crown ethyl cellulose, top crown material is the sheet material of the insulated type Poly-L-lactic acid molding easily obtaining electronics, bottom crown is the sheet material of the insulated type ethyl cellulose molding of volatile de-electromation, on, the contact interface of bottom crown makes difform floral designs, on, bottom crown forms arc space according to the contact of concavo-convex relative close, and use the nylon66 fiber thin-film package of biocompatibility.The invention have the advantage that this structure of minitype generator is simple, volume is little, simple to operate, insert internal after, through extrusion frictions such as human body motion, external massage, vibrations, produce micro voltage, electric current, the medical domains such as diagnosis, fast treating and neomorph can be widely used in as the miniature diagnosis implanted, the power supply of therapeutic equipment.
Description
[technical field]
The present invention relates to become mechanical energy the micro generation technology of electric energy, particularly a kind of biocompatibility is micro-
Type friction generator.
[background technology]
Electrostatic charging is the most ancient a kind of phenomenon, can trace back to B.C. centuries, Greeks and Gu
Find that the succinum rubbed can attract small and light object for Chinese.But the randomness produced due to it and
Storage problem, is allowed to be always treated as the useless energy, and fails to be developed.In recent years, along with material system
The progress of standby technology, collects and stores the energy of " useless " in environment, make the energy of miniaturized electronics
Source has become as possibility.Franklinic electricity nano generator general that georgia ,U.S.A Institute of Technology professor Wang Zhonglin proposes
Read, provide a new approach for alleviating energy crisis.
Institutes Of Technology Of Tianjin Chen Minfang teaches seminar and is devoted to the biology that biocompatibility is good the most always
The research and discovery of material, the oldest teacher seminar achieves great successes in this respect, closes at magnesium
Gold, titanium alloy, medical high polymer polylactic acid aspect have corresponding problem, particularly at degradable biomaterial
Research aspect, achieves gratifying achievement especially.Being based on this overall situation, the seminar of old teacher is obtaining
At the beginning of knowing friction nanometer power generator, just take the lead in proposing the general of the good friction nanometer power generator of biocompatibility
Read.In a lot of medical events, it is also desirable to the energy, such as cardiac pacemaker, but traditional battery can not carry
For permanent electric energy, so often bringing many inconvenience to patient.The problem the most effectively solving to be similar to,
Both the electric energy furnishing us with needs that can be permanent, again timely the most compatible, this is one
Benefit the problem of the whole mankind, solve Similar Problems for us and provide new thinking.
In years of researches, we understand the biocompatible materials important meaning for patient clearly, special
It not that some have the macromolecular material extensively admitted, the such as polylactic acid mentioned in this example and ethyl cellulose
Element, as traditional bioabsorbable polymer material, good dielectricity is requisite, and therefore we are in experiment
In first contemplate both materials.
[summary of the invention]
The present invention is directed to technical Analysis above, it is provided that a kind of delivery efficiency is high, workable and can be in reality
The biocompatibility miniature friction electromotor used in border, this miniature friction electromotor realizes driving vivo and vitro micro-
Type friction generator, the purpose that acceleration bodies inner tissue repairs.
Technical scheme:
A kind of biocompatibility miniature friction electromotor, is gathered left-handed by top crown nylon66 fiber clad, top crown
Frictional layer and bottom crown nylon66 fiber clad are formed by lactic acid macromolecule by frictional layer, bottom crown ethyl cellulose,
Top crown material is the sheet material of the insulated type Poly-L-lactic acid molding easily obtaining electronics, and bottom crown is volatile de-electromation
The sheet material of insulated type ethyl cellulose molding, the contact interface of upper and lower pole plate makes difform decorative pattern
Pattern, upper and lower pole plate forms arc space according to the contact of concavo-convex relative close, and uses the Buddhist nun of biocompatibility
Dragon 66 thin-film package.
The molecular weight of described top crown material Poly-L-lactic acid is 8-15 ten thousand, the thickness of top crown material be 2-4mm,
Width is 40-60mm, a length of 60-70mm, uses knifing machine to prepare, and concrete steps include:
1) bio-medical Poly-L-lactic acid granule is placed in organic solvent two according to the ratio that mass ratio is 1:5-7
In chloromethanes, heating stirs at 40-60 DEG C, until it can be seen that the homogeneous colloid of color；
2) scraping lamina membranacea at film-laying machine masking foil is placed above and paves, plastic film mulch room evacuation, vacuum is
0.07-0.09MPa, then pours into homogeneous Poly-L-lactic acid colloid and carries out knifing in knifing machine, controls film
Thickness is 2-4mm, length, width all >=100mm, controlling knifing machine temperature is 40 DEG C, is incubated 2h, takes
Going out sheet material, being cut into width is 40-60mm, and the sheet material of a length of 60-70mm is stand-by.
The molecular weight of described bottom crown Materials Ethylcellulose is 80-150 ten thousand, and bottom crown material thickness is 2-4mm,
Prepared by employing knifing machine, concrete steps include:
1) by bio-medical ethyl cellulose crude granule according to the ratio that mass ratio is 1:5-1:7 be placed in ethylene glycol with
In the organic solvent of ethanol mixing, in mixed organic solvents the volume ratio of ethylene glycol and ethanol be respectively 4:1,
5:1,2:1, stir at 40-60 DEG C, until it can be seen that the homogeneous colloid of color；
2) scraping lamina membranacea at film-laying machine masking foil is placed above and paves, plastic film mulch room evacuation, vacuum is
0.07-0.09MPa, then pours into homogeneous ethyl cellulose colloid and carries out knifing in knifing machine, controls film
Thickness is 2-4mm, length, width all >=100mm, controlling knifing machine temperature is 40 DEG C, is incubated 2h, takes out
Sheet material, being cut into width is 40-60mm, and the sheet material of a length of 60-70mm is stand-by.
The concavo-convex individual shapes of the contact interface floral designs of described upper and lower pole plate be triangular prism, cylinder, circular cone,
Pyramid or round platform, its length three-dimensional dimension is respectively 1-10 μm, 1-10 μm, 1-100 μm；
The preparation method of floral designs be the macromolecule organic sheet material sheared is used pressure sintering, magnetron sputtering or from
Son etching prepares.
The invention have the advantage that
Being somebody's turn to do biocompatibility microgenerator based on friction effect, simple in construction, volume are little, simple to operate,
Insert internal after, through extrusion frictions such as human body motion, external massage, vibrations, produce micro voltage, electric current, i.e.
Form microgenerator, can be as the miniature diagnosis implanted, the power supply of therapeutic equipment, it is possible to directly act on
In damage location, moved by human body or micro voltage that the extrusion friction such as external massage, vibrations produces and make thin
Born of the same parents' fast-growth, and then make damaged tissues quickly fully recover, can be widely used for diagnosis, fast treating and neomorph
Deng medical domain.This microgenerator is connected with damaged tissues, it is provided that high voltage low current, can promote cell
Growth, has the effect accelerating organization healing.
[accompanying drawing explanation]
Fig. 1 Poly-L-lactic acid and the biological friction electric generator structural representation that ethyl cellulose is upper and lower base plate.
In figure: 1. top crown nylon66 fiber clad, 2. top crown Poly-L-lactic acid macromolecule to frictional layer, 3.
Bottom crown ethyl cellulose is to frictional layer, 4. bottom crown nylon66 fiber clad.
[detailed description of the invention]
Instantiation described below is intended to understand the objective purposes of the present invention in detail and in order to make reader have directly
The understanding seen.In addition, it is to be understood that after having read the content that the present invention lectures, those skilled in the art are permissible
Making various changes or modifications the present invention, these equivalent form of values fall within the application appended claims equally and are limited
Fixed scope.
Embodiment 1:
A kind of biocompatibility miniature friction electromotor, as it is shown in figure 1, by top crown nylon66 fiber clad 1,
Top crown Poly-L-lactic acid macromolecule to frictional layer 2, bottom crown ethyl cellulose to frictional layer 3 and bottom crown Buddhist nun
Dragon 66 clads 4 form, and top crown material is the sheet material of the insulated type Poly-L-lactic acid molding easily obtaining electronics,
Bottom crown is the sheet material of the insulated type ethyl cellulose molding of volatile de-electromation, the contact interface system of upper and lower pole plate
Making there are difform floral designs, upper and lower pole plate forms arc space according to the contact of concavo-convex relative close, and
Use the nylon66 fiber thin-film package of biocompatibility.
The molecular weight of described top crown material Poly-L-lactic acid is 150,000, and the thickness of top crown material is 4mm, width
Degree is 60mm, a length of 70mm, uses knifing machine to prepare, and concrete steps include:
Bio-medical Poly-L-lactic acid granule is placed in organic solvent dichloromethane according to the ratio that mass ratio is 1:5
In alkane, heating stirs at 40 DEG C, until it can be seen that the homogeneous colloid of color；Scrape at film-laying machine
Lamina membranacea is placed above masking foil and paves, plastic film mulch room evacuation, and vacuum is 0.07MPa, then by homogeneous
Poly-L-lactic acid colloid is poured into and is carried out knifing in knifing machine, and the thickness controlling film is 4mm, and length, width are equal
For 100mm, controlling knifing machine temperature is 40 DEG C, is incubated 2h, takes out sheet material, and being cut into width is 60mm,
The sheet material of a length of 70mm is stand-by.
The molecular weight of described bottom crown Materials Ethylcellulose is 800,000, and bottom crown material thickness is 4mm, and employing is scraped
Prepared by film machine, concrete steps include:
According to the ratio that mass ratio is 1:5, bio-medical ethyl cellulose crude granule is placed in ethylene glycol mix with ethanol
In the organic solvent closed, in mixed organic solvents, ethylene glycol is respectively 5:1, at 60 DEG C with the volume ratio of ethanol
Stir, until it can be seen that the homogeneous colloid of color；Scrape lamina membranacea at film-laying machine and masking foil and paving are placed above
Flat, plastic film mulch room evacuation, vacuum is 0.09MPa, then pours homogeneous ethyl cellulose colloid into knifing
Carrying out knifing in machine, the thickness controlling film is 4mm, and length, width are 100mm, controls knifing machine temperature
Being 40 DEG C, be incubated 2h, take out sheet material, being cut into width is 460mm, and the sheet material of a length of 70mm is stand-by；
Concrete grammar is:
The concavo-convex individual shapes of the contact interface floral designs of described upper and lower pole plate is cylinder, its a diameter of 4 μ
M, height is 10 μm；The preparation method of floral designs is that the macromolecule organic sheet material sheared is used heat
Platen press prepares, and concrete grammar is:
Cut the steel wire of 3000 mesh purchased, it is ensured that cover complete macromolecule sheet material, hot press temperature is set
Being 80 DEG C, pressure is 8.0 × 106N/M2, hot pressing 5min, under an optical microscope it can be seen that advise after hot pressing
Whole micro-pattern.
The assembling of friction generator: upper bottom crown is taked elastic bonding, is packaged with polyimides adhesive plaster,
Elastic space surplus is left in centre, and two-plate takes contact separation formula friction mode, and friction material is required have
Corresponding elastic modelling quantity, toughness, rigidity, can freely reply, control turnaround time, at 3ms, could obtain
Good experiment effect.
The detection of friction generator: by oscillograph, power supply preamplifier, voltage preamplifier and make
The good friction nanometer power generator of biocompatibility be connected, carry out exporting electric current, voltage, electric energy and power
Measurement and calculating.This miniature friction electromotor insert internal after, through human body motion, external massage, vibrations etc.
Extrusion friction, produces micro voltage, electric current.Being found by test, the crest voltage of output is 150V, peak value
Electric current is 9 μ A.
Claims (1)
1. a biocompatibility miniature friction electromotor, by top crown nylon66 fiber clad, the poly-left side of top crown
Revolve lactic acid macromolecule to frictional layer, bottom crown ethyl cellulose to frictional layer and bottom crown nylon66 fiber clad group
Becoming, top crown material is the sheet material of the insulated type Poly-L-lactic acid molding easily obtaining electronics, and bottom crown is for easily to lose
The sheet material of the insulated type ethyl cellulose molding of electronics, the contact interface making of upper and lower pole plate has difform
Floral designs, upper and lower pole plate forms arc space according to the contact of concavo-convex relative close, and uses biocompatibility
Nylon66 fiber thin-film package,
It is characterized in that: the molecular weight of described top crown material Poly-L-lactic acid is 8-15 ten thousand, top crown material
Thickness is 2-4mm, width is 40-60mm, a length of 60-70mm, uses knifing machine to prepare, concrete steps
Including:
1) bio-medical Poly-L-lactic acid granule is placed in organic solvent two according to the ratio that mass ratio is 1:5-7
In chloromethanes, heating stirs at 40-60 DEG C, until it can be seen that the homogeneous colloid of color；
2) scraping lamina membranacea at film-laying machine masking foil is placed above and paves, plastic film mulch room evacuation, vacuum is
0.07-0.09MPa, then pours into homogeneous Poly-L-lactic acid colloid and carries out knifing in knifing machine, controls film
Thickness is 2-4mm, length, width all >=100mm, controlling knifing machine temperature is 40 DEG C, is incubated 2h, takes
Going out sheet material, being cut into width is 40-60mm, and the sheet material of a length of 60-70mm is stand-by；
The molecular weight of described bottom crown Materials Ethylcellulose is 80-150 ten thousand, and bottom crown material thickness is 2-4mm,
Prepared by employing knifing machine, concrete steps include:
1) by bio-medical ethyl cellulose crude granule according to the ratio that mass ratio is 1:5-1:7 be placed in ethylene glycol with
In the organic solvent of ethanol mixing, in mixed organic solvents the volume ratio of ethylene glycol and ethanol be respectively 4:1,
5:1,2:1, stir at 40-60 DEG C, until it can be seen that the homogeneous colloid of color；
2) scraping lamina membranacea at film-laying machine masking foil is placed above and paves, plastic film mulch room evacuation, vacuum is
0.07-0.09MPa, then pours into homogeneous ethyl cellulose colloid and carries out knifing in knifing machine, controls film
Thickness is 2-4mm, length, width all >=100mm, controlling knifing machine temperature is 40 DEG C, is incubated 2h, takes out
Sheet material, being cut into width is 40-60mm, and the sheet material of a length of 60-70mm is stand-by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728985.XA CN104485835B (en) | 2014-12-05 | 2014-12-05 | A kind of biocompatibility miniature friction electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410728985.XA CN104485835B (en) | 2014-12-05 | 2014-12-05 | A kind of biocompatibility miniature friction electromotor |
Publications (2)
| Publication Number | Publication Date |
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| CN104485835A CN104485835A (en) | 2015-04-01 |
| CN104485835B true CN104485835B (en) | 2016-11-16 |
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| CN201410728985.XA Expired - Fee Related CN104485835B (en) | 2014-12-05 | 2014-12-05 | A kind of biocompatibility miniature friction electromotor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026759B (en) * | 2016-05-20 | 2017-12-05 | 北京科技大学 | A kind of transient state can dissolve friction generator and preparation method thereof |
| CN107959437B (en) * | 2017-12-21 | 2019-05-24 | 浙江大学 | The high performance grinding nano generator of paper base |
| CN108649832A (en) * | 2018-05-11 | 2018-10-12 | 浙江大学 | Contact-type frictional power generator based on suspended type vibration |
| CN109603004A (en) * | 2018-12-04 | 2019-04-12 | 苏州大学 | It is a kind of to drive electric stimulation, sticking plaster and inhibition of cancer cell capsule certainly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102710166B (en) * | 2012-04-13 | 2015-01-07 | 纳米新能源（唐山）有限责任公司 | Friction generator |
| CN102684546B (en) * | 2012-05-15 | 2015-03-18 | 纳米新能源（唐山）有限责任公司 | Friction generator |
| US9812993B2 (en) * | 2012-09-21 | 2017-11-07 | Georgia Tech Research Corporation | Single electrode triboelectric generator |
| CN103107732B (en) * | 2013-01-30 | 2014-12-17 | 天津理工大学 | Organism medical disposable micro friction motor and manufacture method thereof |
| CN203663246U (en) * | 2014-01-16 | 2014-06-25 | 国家纳米科学中心 | Heart pacemaker |
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