CN104056358A - Magnetic stimulator cooling device - Google Patents
Magnetic stimulator cooling device Download PDFInfo
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- CN104056358A CN104056358A CN201410262285.6A CN201410262285A CN104056358A CN 104056358 A CN104056358 A CN 104056358A CN 201410262285 A CN201410262285 A CN 201410262285A CN 104056358 A CN104056358 A CN 104056358A
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- coil
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- entrance
- condenser
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- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 54
- 230000004936 stimulating effect Effects 0.000 claims abstract description 49
- 239000002826 coolant Substances 0.000 claims description 43
- 238000009835 boiling Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229930195734 saturated hydrocarbon Natural products 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 150000001923 cyclic compounds Chemical class 0.000 claims 2
- 241001597008 Nomeidae Species 0.000 claims 1
- 238000013459 approach Methods 0.000 claims 1
- 238000010992 reflux Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000638 stimulation Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000763 evoking effect Effects 0.000 description 2
- -1 freon Natural products 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000011491 transcranial magnetic stimulation Methods 0.000 description 2
- 210000003311 CFU-EM Anatomy 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 208000019695 Migraine disease Diseases 0.000 description 1
- 230000036982 action potential Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 210000003710 cerebral cortex Anatomy 0.000 description 1
- 230000002490 cerebral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000028161 membrane depolarization Effects 0.000 description 1
- 206010027599 migraine Diseases 0.000 description 1
- 210000000337 motor cortex Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000000944 nerve tissue Anatomy 0.000 description 1
- 230000001537 neural effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000013548 repetitive transcranial magnetic stimulation Methods 0.000 description 1
- 210000004761 scalp Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- Magnetic Treatment Devices (AREA)
Abstract
A magnetic simulator cooling device comprises a stimulating pat and a coil cooling device. The stimulating pat comprises a stimulating coil (4), a coil shell (2) and a handle (19). A power source (1) is connected with the stimulating coil (4) through a wire (3), the handle (19) is connected with the coil shell (2), and in the coil cooling device, a condenser (14) is located above the liquid storage box (6). The stimulating coil (4) and the liquid storage box (6) are arranged in the coil shell (2). A first outlet (8) of the liquid storage box (6) is connected with a second inlet (10) of the condenser (14), and a first inlet (7) of the liquid storage box (6) is connected with a second outlet (9) of the condenser (14). Cooling media are boiled and vaporized to take away heat when the coil emits heat, steam enters the condenser (14) along the first outlet (8), is condensed, then changes back to be in the liquid state and returns to the liquid storage box along the second outlet (9), circulation is conducted in the way, and the purpose of cooling the coil is achieved.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of chiller of magnetic stimulator.
Background technology
The beginning of the eighties in 19th century, the people such as British scientist Bake begin one's study and utilize magnetic to stimulate the activity to cerebral nerve to intervene, and in 1985, successfully stimulated first the motorium of human brain, with myoelectricity, record motor cortex and brought out current potential (Motor-evoked potentials, MEPs).This also indicates that transcranial magnetic stimulation (Transcranial Magnetic Stimulation, TMS) has entered the arena of history., there is repetition magnetic stimulator (Repetitive Transcranial Magnetic Stimulation, rTMS) end of the eighties in the improvement along with high power device development and circuit, this stimulator is per second can produce 100 pulses of 1 –.Magnetic stimulator is the principle according to electromagnetic induction, and the energy storing in capacitor is discharged in stimulating coil at short notice, forms pulse current, and then in space, forms pulsed magnetic field and and induction field in its vicinity.When stimulating coil stimulates human body, in human nerve tissue, produce faradic current, and make the cell membrane depolarization of neurocyte, produce action potential.According to the difference of stimulation location, can produce different effects, as stimulated cerebral cortex primary motor area, cortex excitement can conduct to limb muscle.Utilize electromyograph(EMG can be recorded to Motion Evoked Potential, utilize wave amplitude and the incubation period of bringing out current potential can evaluate neural function.Also can stimulate corticocerebral other regions to treat diseases such as depression, migraine.
Prior art is that (hundreds of is delicate) passes into the electric current of thousands of amperes in stimulating coil within the extremely short time, in this process coil, can produce a large amount of heat, especially for high frequency repetitive stimulation (being greater than 5Hz), heat in coil will be accumulated and cause temperature constantly to raise, and the rising of temperature can increase coil resistance, change current waveform, affect therapeutic effect.More serious consequence is because coil temperature is too high, to make the insulating barrier of coil aging and affect life-span of equipment.Therefore heat dissipation problem is current urgent problem.
In prior art, the issue handling mode of generating heat for stimulating coil has four kinds:
(1) adopt a plurality of coils to take turns to operate, heating takes off, and changes another.But this has increased the complexity of operation, and frequent more emat coil easily causes the wearing and tearing of interface, and equipment is caused to damage.
(2) external air-cooled, at coil surface provided with fan.The method shortcoming is: winding volume and weight are excessive, make troubles to the fixing and operation of coil, and cooling effect is bad.
(3) external water-cooled, its feature is similar to external air-cooled, at coil surface, water-cooling circulating system is installed.Its shortcoming is with air-cooled similar.And external water-cooled has increased the risk of high pressure electric leakage.
(4) built-in liquid cooling, cold line circle in the method adopts, is formed by single tubing coiling.Although the method can reach good cooling effect, owing to using tubing, caused coil-winding cross-sectional area to reduce to increase with resistance, increased energy loss.Than the solid lenticular wire of equal cross-sectional area, winding volume obviously increases, and is not suitable for for the more coil of the number of turn.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, propose a kind of safe and reliablely, cooling effectiveness is high, the magnetic stimulator of the cooling means that can use continuously.
The reserving liquid tank that contains cooling medium is housed in stimulating bat of the present invention, reserving liquid tank lower surface is close to and is covered stimulating coil upper surface completely, cooling medium produces steam in the boiling of stimulating coil adstante febre, take away the heat that stimulating coil produces, steam is the cooling liquid state of getting back to after the first outlet of reserving liquid tank enters condenser, along the second outlet of condenser, get back to reserving liquid tank and reclaim, so circulation, reaches the object that reduces coil temperature.
The present invention is by the following technical solutions:
A magnetic stimulator, comprises stimulating bat and coil chiller.Described stimulating bat comprises stimulating coil, coil case and handle.Stimulating coil is connected with power supply by wire.Described coil chiller comprises reserving liquid tank, cooling medium and described cooling medium is carried out to cooling condenser.Described condenser is positioned at reserving liquid tank top.Described reserving liquid tank is provided with the first entrance, the first outlet, and described condenser is provided with the second entrance and the second outlet.Described the first entrance is connected with the second outlet, and described the first outlet is connected with the second entrance.Cooling medium circulates in the path of described reserving liquid tank and condenser formation.The lower surface of described reserving liquid tank is close to the upper surface of stimulating coil, and stimulating coil and reserving liquid tank are positioned in coil case.In described condenser, be provided with condensing tube, the two ends of condensing tube are respectively the 3rd entrance and the 3rd outlet, and condensing tube is the water row that copper tube is made.The 3rd entrance is connected with cooling delivery side of pump, and the 3rd outlet is connected with the entrance of coolant pump.Coolant pump and condensing tube form path, and cooling water circulates therein.
Described reserving liquid tank is that moulded heat-conductive insulated plastics is made, and the lower surface of reserving liquid tank covers stimulating coil upper surface completely.
Described cooling medium is nonconducting low-boiling point liquid, as unsaturation Hydrocarbon and their halogen derivants such as the saturated hydrocarbons such as freon, ammonia, ethane, hexafluoro dichloro Tetramethylene. isocyclic compound, ethylene.
Described condenser need to maintain static, and its position is above reserving liquid tank.Reserving liquid tank the first entrance is connected with the second entrance with the second outlet of condenser respectively by flexible pipe with the first outlet.After cooling medium evaporation, can naturally rise in condenser along the first outlet, flexible pipe and the second entrance.After cooling medium condensation, can along difference in height, naturally drop in reserving liquid tank along the second outlet, flexible pipe and the first entrance.Described flexible pipe can guarantee that stimulating bat is mobile among a small circle.
Angle between stimulating bat and horizontal plane is not more than 45 degree, during treatment, stimulating bat can be positioned to desired location.
The workflow of apparatus of the present invention is as follows:
The first step, opens coolant pump, and cooling water is circulated in the cool cycles unit of coolant pump and condensing tube formation;
Second step, adjusts stimulating bat position to required point of care, and the lower surface of stimulating bat and patient's scalp are tangent;
The 3rd step, opening power starts magnetic to stimulate, and stimulating coil in use generates heat, and to liquid heat in reserving liquid tank;
The 4th step, stimulating coil reaches after uniform temperature, and liquid boiling in reserving liquid tank produces steam and takes away heat, and steam enters condenser by the first outlet and the second entrance;
The 5th step, steam in condenser with condensing tube in cooling water carry out heat exchange, cooling medium is got back to liquid state by gaseous state;
The 6th step, liquid cooling medium enters reserving liquid tank along the second outlet and the first entrance, completes a circulation.
By above five steps, cooling medium circulates by transpiration-cooled mode in reserving liquid tank and condenser, takes away the heat that coil produces simultaneously, reaches the object that reduces coil temperature.
Owing to having adopted above technical scheme, the beneficial effect that the present invention possesses is:
(1) the present invention has adopted transpiration-cooled refrigerating method, and cooling medium forms steam and takes away heat in the boiling of coil adstante febre, forms again liquid cooling medium and get back to reserving liquid tank after steam is cooling in condenser.Whole stimulating coil is obtained lasting cooling, improve the stability of stimulating coil work.
(2) reserving liquid tank adopts moulded heat-conductive insulated plastics, and cooling medium contact with coil, and cooling medium itself also insulate, and has avoided the danger of leaking electricity, and has improved safety.
(3) described condenser need to maintain static, and stimulating bat can move among a small circle, allows to have certain angle between stimulating bat and horizontal plane, and this angle is not more than 45 degree, while guaranteeing treatment, stimulating bat can be positioned to desired location.Because reserving liquid tank is positioned at stimulating bat inside, this movably design is that prior art is not available.
Accompanying drawing explanation
Fig. 1 is the structural representation of magnetic stimulator of the present invention;
Fig. 2 is the flow chart of cooling water work process in magnetic stimulator chiller of the present invention;
Fig. 3 is the flow chart of cooling medium work process in magnetic stimulator chiller of the present invention.
The specific embodiment
An embodiment schematic diagram that Figure 1 shows that magnetic stimulator of the present invention, magnetic stimulator of the present invention comprises stimulating bat and chiller.Described stimulating bat comprises stimulating coil 4, coil case 2 and handle 19, and power supply 1 is connected with stimulating coil 4 by wire 3, and handle 19 is connected with coil case 2.Chiller comprises reserving liquid tank 6, cooling medium 5 and cooling medium 5 is carried out to cooling condenser 14.Reserving liquid tank 6 has the first entrance 7 and the first outlet 8.Condenser 14 is provided with the second outlet 9, the second entrances 10 and condensing tube 13, and the two ends of condensing tube 13 are respectively the 3rd entrance 11 and the 3rd outlet 12.The first outlet 8 is connected with the second outlet 9 by flexible pipe 16 respectively with the second entrances 10 with the first entrance 7.The 3rd entrance 11 is connected with water inlet 18 with the outlet 17 of the 4th entrance 12 respectively at coolant pump 15.During use, operator hold handle 19, and stimulating bat is moved above patient's head 20, until arrive required stimulation sites.
Cooling medium 5 circulates by transpiration-cooled mode in the path of reserving liquid tank 6 and condenser 14 formations, when stimulating coil 4 work adstante febre are to the cooling medium heating in reserving liquid tank 6, when being heated to a certain degree, cooling medium 5 boilings produce steam and take away heat, steam enters condenser 14 along the first outlet 8 and the second entrance 10, cooling water in steam and condensing tube 13 carries out after heat exchange condensation and gets back to liquid state, and liquid cooling medium is back to reserving liquid tank 6.
Cooling water in condensing tube 13 is realized cooling water circulation by external coolant pump 15.
Figure 2 shows that the flow chart of an embodiment of cooling water work process in magnetic stimulator chiller of the present invention:
Step 201: open coolant pump 15, make cooling water continuously outflow coolant pump 15;
Step 202: cooling water flows out and enters condensing tube 13 from coolant pump 15;
Step 203: the cooling water in the steam in condenser 14 and condensing tube 13 carries out heat exchange, and cooling water is taken away heat, cooling medium condensation is also got back to liquid state;
Step 204: cooling water flow out of condensing tube 13 and be back to coolant pump 15.
Figure 3 shows that the flow chart of an embodiment of cooling medium work process in magnetic stimulator chiller of the present invention:
Step 301: opening power 1, stimulating coil 4 is started working, and stimulating coil 4 starts heating;
Step 302: when stimulating coil generates heat to a certain extent, the generation steam that comes to life of the cooling medium in reserving liquid tank 6;
Step 303: steam is taken away heat, and rising enters condenser 14;
Step 304: the cooling water in steam and condensing tube 13 carries out heat exchange, and cooling water is taken away heat, cooling medium 5 condensations are also got back to liquid state;
Step 305: condensed cooling medium 5 is got back to reserving liquid tank 6;
Step 306: so repeatedly, until system reaches steady statue.
Claims (6)
1. a magnetic stimulator chiller, is characterized in that, described magnetic stimulator chiller comprises stimulating bat and coil chiller; Described stimulating bat comprises stimulating coil (4), coil case (2) and handle (19); Power supply (1) is connected with stimulating coil (4) by wire (3); Handle (19) is connected with coil case (2); Described coil chiller comprises reserving liquid tank (6), cooling medium (5) and the condenser (14) cooling to cooling medium (5); Condenser (14) is positioned at reserving liquid tank (6) top; Stimulating coil (4) and reserving liquid tank (6) are positioned in coil case (2); Reserving liquid tank (6) has the first entrance (7) and the first outlet (8); Condenser (14) is provided with the second outlet (9), the second entrance (10) and condensing tube (13), described the first outlet (8) is connected with the second entrance (10), and described the first entrance (7) is connected with the second outlet (9); Described cooling medium is vaporized and takes away heat in the boiling of coil adstante febre, steam enters condenser (14) along the first outlet (8), becomes liquid state after condensation again, and gets back to reserving liquid tank along the second outlet (9), so circulation, reaches the object that reduces coil temperature.
2. magnetic stimulator chiller as claimed in claim 1, is characterized in that, described reserving liquid tank (6) is made by moulded heat-conductive insulated plastics, and the upper surface of stimulating coil (4) is close to and is covered to the lower surface of reserving liquid tank (6).
3. magnetic stimulator chiller as claimed in claim 1, is characterized in that, the top of described the second entrance (10) approaches the top of condenser (14), prevents from refluxing after cooling medium condensation.
4. magnetic stimulator chiller as claimed in claim 1, is characterized in that, described condenser is provided with the 3rd entrance (11) and the 3rd outlet (12); The 3rd entrance (11) is connected with cooling delivery side of pump, the 3rd outlet (12) is connected with the entrance of coolant pump, condensing tube between the 3rd entrance (11) and the 3rd outlet (12) is the water row that copper tube is made, and plays the object that increases steam and condensing tube contact area.
5. magnetic stimulator chiller as claimed in claim 1, is characterized in that, described stimulating bat and the angle between horizontal plane are not more than 45 degree.
6. magnetic stimulator chiller as claimed in claim 1, it is characterized in that, described cooling medium is saturated hydrocarbon or cyclic compound or unsaturation Hydrocarbon, and the halogen derivant of saturated hydrocarbon and cyclic compound and three kinds of compounds of unsaturation Hydrocarbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262285.6A CN104056358B (en) | 2014-06-12 | 2014-06-12 | A kind of magnetic stimulator chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410262285.6A CN104056358B (en) | 2014-06-12 | 2014-06-12 | A kind of magnetic stimulator chiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104056358A true CN104056358A (en) | 2014-09-24 |
| CN104056358B CN104056358B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262285.6A Expired - Fee Related CN104056358B (en) | 2014-06-12 | 2014-06-12 | A kind of magnetic stimulator chiller |
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| Country | Link |
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| CN (1) | CN104056358B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112274780A (en) * | 2020-11-19 | 2021-01-29 | 王昕� | Force compensation device and method of TMS treatment equipment externally connected with cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127840A1 (en) * | 2008-04-17 | 2009-10-22 | The Magstim Company Limited | Magnetic stimulators and stimulating coils |
| CN101947359A (en) * | 2010-09-16 | 2011-01-19 | 武汉依瑞德医疗设备新技术有限公司 | Magnetic field stimulator and cooling method thereof |
| US20110218381A1 (en) * | 2008-10-31 | 2011-09-08 | Nexstim Oy | Magnetic Stimulation coils with electrically conducting structures |
| CN103028193A (en) * | 2012-12-18 | 2013-04-10 | 深圳英智科技有限公司 | Semiconductor cooling device of transcranial magnetic stimulation coil |
| CN203253060U (en) * | 2013-03-04 | 2013-10-30 | 深圳英智科技有限公司 | Water-circulation cooling apparatus outside magnetic stimulation coil |
| CN203507320U (en) * | 2013-08-30 | 2014-04-02 | 李明宙 | Transcranial magnetic stimulation device |
-
2014
- 2014-06-12 CN CN201410262285.6A patent/CN104056358B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009127840A1 (en) * | 2008-04-17 | 2009-10-22 | The Magstim Company Limited | Magnetic stimulators and stimulating coils |
| US20110218381A1 (en) * | 2008-10-31 | 2011-09-08 | Nexstim Oy | Magnetic Stimulation coils with electrically conducting structures |
| CN101947359A (en) * | 2010-09-16 | 2011-01-19 | 武汉依瑞德医疗设备新技术有限公司 | Magnetic field stimulator and cooling method thereof |
| CN103028193A (en) * | 2012-12-18 | 2013-04-10 | 深圳英智科技有限公司 | Semiconductor cooling device of transcranial magnetic stimulation coil |
| CN203253060U (en) * | 2013-03-04 | 2013-10-30 | 深圳英智科技有限公司 | Water-circulation cooling apparatus outside magnetic stimulation coil |
| CN203507320U (en) * | 2013-08-30 | 2014-04-02 | 李明宙 | Transcranial magnetic stimulation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112274780A (en) * | 2020-11-19 | 2021-01-29 | 王昕� | Force compensation device and method of TMS treatment equipment externally connected with cable |
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| CN104056358B (en) | 2016-06-22 |
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