CN113215666A

CN113215666A - Portable electrospinning device

Info

Publication number: CN113215666A
Application number: CN202110069470.3A
Authority: CN
Inventors: 韩庚夑; 黄允均; 朴胜寒; 南珍; 朴元锡; 蔡秉根; 皮凤树
Original assignee: Amorepacific Corp
Current assignee: Amorepacific Corp
Priority date: 2020-02-06
Filing date: 2021-01-19
Publication date: 2021-08-06
Also published as: KR20210100316A; JP2021122826A; KR102750711B1

Abstract

The invention relates to portable electrospinning equipment. A portable electrospinning apparatus according to an aspect of the present invention includes: a housing forming an appearance, provided with a switch at one side, through which a user can adjust discharge of a spinning solution; a storage part, which can be provided at one side of the housing, for storing the spinning solution; a discharging part which can discharge the spinning solution stored in the storing part to the outside; a power supply part supplying current to the discharge part; a voltage amplifying part amplifying the voltage supplied from the power supply part and applying the voltage to the discharge part; and a guide structure extending from one side end of the housing, surrounding at least a part of the discharge portion, and extending downward from the discharge portion.

Description

Portable electrospinning device

Technical Field

The invention relates to portable electrospinning equipment.

Background

In general, an electrospinning device is known as a device that applies a high voltage between a nozzle part for spinning a spinning solution and a substrate to spin the spinning solution in a nanofiber state. In addition, nanofibers produced by electrospinning equipment are generally used in ultra-high precision filters, materials for the electrical and electronics industry, biological materials for medical use, and the like.

The existing electrospinning device is large in size and heavy, so that a separate setting space is required, and the electrospinning device is difficult to apply to a cosmetic device because electrospinning is completed in a fixed state.

Recent research has been conducted to miniaturize existing electrospinning apparatuses and to apply them to various fields. However, since the small-sized electrospinning device has a configuration in which a spinning nozzle for spinning a spinning solution protrudes outward, there is a problem that electric shock may occur and sparks may be generated by the protruding nozzle.

[ Prior art documents ]

[ patent document ]

Patent documents: korean patent laid-open publication No. 10-1118081

Disclosure of Invention

Technical problem

Embodiments of the present invention are proposed to solve the above-described problems, and provide a portable electrospinning device that is small and portable.

In addition, a portable electrospinning device which can be used as a cosmetic device is provided.

In addition, a portable electrospinning device is provided which reduces the risk of electric shock and thus can be safely used by a user.

In addition, a portable electrospinning device with improved usability is provided.

Technical scheme

According to an embodiment of the present invention, there may be provided a portable electrospinning apparatus including: a housing forming an appearance, provided with a switch at one side, through which a user can adjust discharge of a spinning solution; a storage part, which can be provided at one side of the housing, for storing the spinning solution; a discharging part which can discharge the spinning solution stored in the storing part to the outside; a power supply part supplying current to the discharge part; a voltage amplifying part amplifying the voltage supplied from the power supply part and applying the voltage to the discharge part; and a guide structure extending from one side end of the housing, surrounding at least a part of the discharge portion, and extending downward from the discharge portion.

In addition, a portable electrospinning device may be provided, wherein an opening is formed in at least a part of the guide structure.

In addition, a plurality of openings may be formed along the periphery of the side surface portion of the guide structure, and the distance between the plurality of openings may be constant.

Further, a portable electrospinning device can be provided, wherein the surface area of the opening is 60% to 90% with respect to the surface area of the guide structure.

In addition, a portable electrospinning apparatus may be provided, wherein a distance d1 between a lower end of the discharge portion and a lower end of the guide structure is 5mm to 50 mm.

In addition, a portable electrospinning device may be provided, wherein a metal collector as a conductor may be provided at a lower side end portion of the guide structure, the discharge portion is applied with a preset voltage from the voltage amplification portion, and the metal collector is applied with a voltage of opposite polarity to the discharge portion from the voltage amplification portion.

In addition, a portable electrospinning apparatus may be provided in which a metal collector cover as a nonconductor is provided on the lower side of the metal collector.

In addition, a portable electrospinning apparatus may be provided, wherein the discharge portion is formed of a metal, and the guide structure is formed of a non-conductive body.

In addition, a portable electrospinning apparatus may be provided, wherein the spinning solution includes a polymer, water, and a solvent.

In addition, a portable electrospinning device may be provided, wherein the ratio of the solvent in the spinning solution as a whole is 10% to 94%.

In addition, the portable electrospinning device may be provided, wherein the guide structure is formed in a cylindrical shape, and the discharge portion is disposed at the center of the guide structure when the guide structure is viewed from below.

In addition, a portable electrospinning device may be provided, wherein a quantitative discharge part is provided at an upper side or a side surface of the storage part to enable the spinning solution stored in the storage part to be coagulated at a certain amount at the discharge part.

In addition, there may be provided a portable electrospinning apparatus, wherein the guide structure comprises: a connecting portion connected with the housing; a side surface portion extending downward from the connection portion, surrounding at least a portion of the discharge portion; and a lower surface portion extending from the side surface portion and formed in a closed curve shape.

In addition, a portable electrospinning apparatus may be provided, wherein the connection part is provided to be selectively combined with the housing.

Effects of the invention

The portable electrospinning apparatus according to the embodiment of the present invention is provided to be miniaturized, thereby having an advantage of being carried by a user.

In addition, the utility model has the effect of being used as a beauty treatment device.

In addition, the electric shock protector has the advantages of reducing the electric shock risk and being safe for users to use.

In addition, the utility model has the effect of convenient use for users.

Drawings

Fig. 1 is a perspective view schematically showing a portable electrospinning apparatus according to an embodiment of the present invention;

fig. 2 is a sectional view schematically showing a section of the portable electrospinning apparatus 1 of fig. 1;

fig. 3 is a perspective view schematically showing the guide structure of fig. 1;

fig. 4 is a view of the guide structure of fig. 1 as viewed from below;

fig. 5 schematically shows a cross-section of a portable electrospinning apparatus according to other embodiments of the present invention;

figure 6 diagrammatically shows a cross-section of a guide construction 600 "according to yet other embodiments of the invention;

fig. 7 schematically shows a state where a user holds the portable electrospinning apparatus of fig. 1.

Reference numerals:

1: the portable electrospinning apparatus 100: shell body

200: the storage section 300: discharge part

400: power supply unit 500: voltage amplification part

600: guide structure

Detailed Description

Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In describing the present invention, when it is determined that the gist of the present invention can be confused by a specific description of a related known configuration or function, a detailed description thereof will be omitted.

Fig. 1 is a perspective view schematically showing a portable electrospinning device according to an embodiment of the present invention, fig. 2 is a sectional view schematically showing a section of the portable electrospinning device 1 of fig. 1, fig. 3 is a perspective view schematically showing a guide structure of fig. 1, and fig. 4 is a view of the guide structure of fig. 1 as viewed from a lower side.

Referring to fig. 1 to 4, a portable electrospinning apparatus 1 according to an embodiment of the present invention may include: a case 100 forming an external appearance; a storage section 200 capable of storing the spinning solution; a discharge part 300 discharging the spinning solution to the outside; a power supply part 400 supplying current to the discharge part 300; a voltage amplification unit 500 that amplifies the voltage supplied from the power supply unit 400 and applies the voltage to the discharge unit 300; and a guide structure 600 that may separate the discharge part 300 from the outside by a preset distance. In addition, the portable electrospinning device 1 may include a control section (not shown) that adjusts the amount of the spinning solution discharged to the outside.

The spinning solution is a substance that can be applied to the skin of a user, and may include a cosmetic material. For example, the spinning solution may include polymer, water, and solvent (solvent), and the ratio of polymer, water, and solvent may be in the range of 1-30%: 5-89%: 10-94%. For example, a spinning solution with 1% polymer and 5% water may include 94% solvent.

In addition, when the spinning solution includes the solvent at a ratio of 20% or more, the spinning solution applied to the skin of the user can be rapidly solidified in a film form within several seconds. Specifically, the spinning solution may include 50% to 90% of a solvent. In this case, since the portable electrospinning device 1 has the opening 640 having the predetermined size, even if a high ratio of the solvent is electrospun, the electric shock risk can be reduced.

However, the kind of the spinning solution is not limited thereto, and the spinning solution may include a medical drug. In this case, the portable electrospinning device 1 can also be used as a medical product.

In the present embodiment, the structure of the portable electrospinning device 1 will be described in detail below, with reference to fig. 2, where the + y direction is defined as the upper side and the-y direction as the lower side.

The housing 100 may be provided in a size that can be carried by a user. For example, it is possible to provide the case 100 with a length L1 of 10cm to 20cm, and a height h and a width w of 1cm to 3cm, respectively.

The housing 100 may be formed in a three-dimensional shape to be held by a user. For example, the case 100 may be provided in a cylindrical shape, a quadrangular prism shape, or the like. In addition, the sectional area (x-z plane) may be gradually smaller from the upper side toward the lower side of the housing 100. However, the shape of the housing 100 is not limited as long as it can be held by a user.

The housing 100 may be formed of a housing lower part 102 through which a later-described discharge part 300 penetrates, a housing side part 104 providing a space for inserting the storage part 200 and the like, and a housing upper part 106 that may be selectively opened in order to replace the storage part 200. In addition, in order to replace the storage part 200, the housing upper part 106 may be provided in a cover form that can be selectively opened.

A switch 110 operable by a user may be provided on the outside of the housing 100. The user can perform an on/off action for actuating the portable electrospinning apparatus 1 by the switch 110.

The switch 110 may be formed of a conductor (metal), and the switch 110 is connected to a voltage amplification unit 500 (described later) via a first connection line 510. In this case, since the ground region is formed by the switch 110, a voltage having an opposite polarity to that of the discharge portion 300 can be applied to the skin of the user. Specifically, the user holds the switch 110, thereby forming an anode or a cathode on the skin, which functions as a current collector, so that the spinning solution can be discharged from the discharge portion 300 to the skin. Here, the first connection line 510 may be understood as a wire connecting between the voltage amplification part 500 and the switch 110.

In addition, a display portion 120 may be provided at one side surface of the case 100. The type of the spinning solution, the remaining amount of the spinning solution, the expected replacement time of the storage section 200, and the like can be displayed through the display section 120.

The amount of the spinning solution discharged from the discharge unit 300 may be adjusted by the display unit 120 or the switch 110.

The storage part 200 may be provided inside the housing 100 to store the spinning solution. The spinning solution may be stored inside the storage part 200, and the storage part 200 may be provided in an alternative cartridge form.

In addition, a constant-amount discharge part 210 may be provided at an upper side or a side surface of the storage part to be able to discharge the spinning solution stored in the storage part 200 by a constant amount. For example, the constant-volume discharge unit 210 may be provided in the form of a piston to push a constant volume of the spinning solution stored in the storage unit 200 toward the discharge unit 300. Here, the amount of the spinning solution pushed out of the discharge part 300 through the quantitative discharge part 210 may be understood as an amount coagulated at the discharge part 300. As described above, the spinning solution coagulated in the drain 300 can be ejected to the outside by electrospinning described later.

The discharging part 300 may be electrically connected to the voltage amplification part 500 to be able to discharge the spinning solution stored in the storage part 200 to the outside. The discharge unit 300 may be electrically connected to a voltage amplification unit 500, which will be described later, via a second connection line 520.

The discharge 300 may be provided by a needle, which may have a diameter of nanometer units.

In addition, the discharge part 300 may be provided by a metal material to which current may be applied.

The discharge unit 300 may protrude outward of the case 100 by a certain length d2, and in this case, the discharge unit 300 protruding outward of the case 100 may be prevented from directly contacting the skin by a guide structure 600, which will be described later.

The power supply part 400 may be provided inside or outside the case 100, and may supply current to the discharge part 300 via the voltage amplification part 500. Specifically, the power supply part 400 may include one or more batteries.

The voltage amplification part 500 may amplify the voltage supplied from the power supply part 400, applying the voltage to the discharge part 300. The high voltage may be applied to the discharge portion 300 by the voltage amplification portion 500 as described above. Here, the voltage amplification part 500 and the discharge part 300 may be electrically connected by a second connection line 520.

The guide construction 600 may be provided in a tub shape extending from one side end of the case 100 to a lower side, surrounding at least a portion of the discharge part 300.

The discharge part 300 can be prevented from directly contacting the skin by the guide structure 600 as described above. In this case, the user can apply the spinning solution to the skin from the discharge portion 300 to which the voltage is applied without electric shock risk.

In addition, the user can hold the portable electrospinning device 1 and bring the guide structure 600 into contact with the skin, thereby easily applying the spinning solution to the skin.

In the present embodiment, the guide structure 600 is described by taking a cylindrical shape having a length L2, an outer radius R, an inner radius R, and a thickness t as an example. The guide structure 600 may have a length L2 of 5mm to 80mm, an outer radius R of 5mm to 20mm, and a thickness t of 1mm to 5 mm. The shape of the guide structure 600 is not limited to a cylindrical shape, and the guide structure 600 may have various shapes such as a quadrangular barrel shape and a triangular barrel shape.

The guide structure 600 may be connected to the housing 100 at one end and opened at the other end as a free end.

Specifically, guide construct 600 may include: a connection part 620 combined with the case 100; a side surface portion 630 extending downward from the connection portion 620, surrounding the discharge portion 300; and a lower surface portion 610 extending from the side surface portion 630 and having an opening through which the spinning solution can pass.

The connecting portion 620 of the guide structure 600 may be integrally formed with the housing lower portion 102. In addition, the connection part 620 may be formed to be selectively separated from the case lower part 102. When the connection part 620 is selectively separated from the housing lower part 102, the user can replace the guide structure 600 for use. In this case, only the guide structure 600 may be manufactured as a separate component, and only the guide structure 600 may be used in combination with a known portable electrospinning device.

The side surface portion 630 of the guide structure 600 may surround at least a portion of the discharge portion 300.

In addition, a plurality of openings 640 may be formed in the side surface portion 630, and the intervals between the plurality of openings 640 may be constant.

In addition, the opening portion 640 may have a slit shape formed in a direction in which the discharge portion 300 extends.

The surface area of the opening 640 formed in the side surface 630 may be 60% to 90% of the surface area of the guide structure 600. Here, the surface area is understood to be an area when the guide structure 600 is deployed as a deployment view.

As described above, in the guide structure 600, the surface area occupied by the opening 640 is set to be large, so that the solvent evaporated in the spinning solution can escape from the inside to the outside of the guide structure 600, and thus the electric shock risk of the user can be reduced.

The lower face 610 of the guide construct 600 may be open to allow the spinning solution to pass through and be applied to the skin. For example, the cross-section of the lower face portion 610 may be ring-shaped.

In addition, a metal collector, which will be described in detail later, may be provided at the lower face portion 610 to function as a collector of the spinning solution spun at the discharge portion 300.

The guide structure 600 may be formed of a non-conductive material. For example, the guide structure 600 may be formed of one of plastic, rubber, and elastomer.

As described above, the guide structure 600 is provided by a non-conductor, so that the spinning solution can be prevented from being stuck to the guide structure 600.

Further, by providing the guide structure 600 with an elastic material such as an elastic body, it is possible to prevent the skin of the user from being injured by the guide structure 600.

The guide structure 600 may be formed to extend toward a lower side than the discharge part 300. In this case, the discharge part 300 may be spaced apart from the skin by a predetermined distance by the guide structure 600.

The distance d1 between the lower end of the drain 300 and the lower end of the guide structure 600 may be 5mm to 60 mm. Preferably, the distance d1 between the lower end of the drain 300 and the lower end of the guide structure 600 may be 20mm to 50 mm. The distance d1 between the lower end of the discharge unit 300 and the lower end of the guide structure 600 is a distance measured in parallel to the y-axis (vertical direction), and is understood to be a distance separating the discharge unit 300 and the skin when the portable electrospinning device 1 is brought into contact with the skin of the user.

The critical meaning of the distance d1 between the lower end of the drain 300 and the lower end of the guide structure 600 will be described below.

If the distance d1 between the lower end of the discharge part 300 and the lower end of the guide structure 600 is within 20mm, a spark may occur when the spinning solution is applied to the skin, which may result in an electric shock.

If the distance d1 between the lower end of the discharge part 300 and the lower end of the guide structure 600 is 50mm or more, the spinning solution may not be spun, or even if spinning is completed, the spinning solution may not be completely applied to the skin.

Further, the guide structure 600 may have a shape in which the drain 300 is disposed at the center of the guide structure 600 and the guide structure 600 surrounds the drain 300 when viewed from the lower portion of the guide structure 600. The distance (the outer radius R and the inner radius R) between the discharge part 300 and the guide structure 600 may be set to be different according to the kind of the spinning solution and the application position.

As described above, by providing the guide structure 600 in the portable electrospinning device 1, the user can directly contact the guide structure 600 with the skin to apply the spinning solution to the skin without considering the distance adjustment of the discharge portion 300 and the skin. In addition, by providing the guide structure 600, the user can apply the spinning solution to the skin without the risk of electric shock.

Fig. 5 shows a portable electrospinning apparatus 1' according to other embodiments of the present invention.

The portable electrospinning apparatus 1' is explained below with reference to fig. 5.

The guide formation 600' of fig. 5 may be of the same size and shape as the guide formation 600 described in fig. 1-4. However, since there is a difference in the point where the metal current collector 700 is provided at the lower portion of the guide structure 600' when compared with the above-described embodiment of fig. 1 to 4, the description will be mainly given of the difference, and the above description and reference numerals will be applied to the same portions.

The metal collector 700 may be provided as a conductor at a lower end of the guide structure 600' (the lower surface 610 of the guide structure 600 described in fig. 1 to 4). That is, the metal current collector 700 may be spaced apart from the drain 300 by a preset distance, and the distance (a direction parallel to the y-axis) may be 5mm to 50mm, and may preferably be 20mm to 50 mm.

Among them, the metal current collector 700 may be provided at the lower side end edge of the guide structure 600'. When the guide structure 600' is formed in a cylindrical shape, the metal current collector 700 may be provided in a ring shape.

The metal current collector 700 may be applied with a voltage from the voltage amplification part 500 'through the first connection line 510'. Here, the first connection line 510 'may be understood as a wire connecting between the voltage amplification part 500' and the metal current collector 700.

When an anode or cathode voltage is applied to the discharge portion 300', the opposite polarity (cathode or anode) of the discharge portion 300' is passed through the metal collector 700. In this case, the spinning solution condensed at the drain 300' may be spun toward the metal current collector 700 side, thereby applying the spinning solution to the skin.

Fig. 6 shows a cross-section of a guide construction 600 "according to yet another embodiment of the invention.

A guide structure 600 "according to still another embodiment of the present invention is described below with reference to fig. 6. However, since there are differences in the sectional shape of the guide structure 600 ″ and the points at which the metal collector cover 710 is provided, as compared with the above embodiment, the description will be given mainly of the points of difference, and the above description and reference numerals will be applied to the same parts.

Referring to fig. 6, a metal collector cover 710 may be provided at the lower end of metal collector 700 ". The metallic current collector cover 710 may be provided by a non-conductor. In this case, the spinning solution spun by the discharge part 300 "may be collected by the metal collector 700", and the direct application of current to the skin may be prevented by the metal collector cover 710 as a nonconductor.

In addition, the inner radius r of the guide structure 600 "may gradually increase from the upper side to the lower side of the guide structure 600". In this case, since the outside radius R of the guide structure 600 "can be kept constant, the thickness t of the guide structure 600" can be gradually reduced from the upper side toward the lower side. The spinning solution can be easily guided toward the skin side by the guide structure 600 ″ shaped as described above.

Fig. 7 is a view schematically showing a state where a user holds the portable electrospinning apparatus 1 of fig. 1.

The operation of the portable electrospinning device of the present invention will be described below with reference to fig. 1 to 7. Among them, a case where the spinning solution is a sunscreen cream will be described.

The user can operate the switch 110 of the portable electrospinning device 1 to turn on the portable electrospinning device 1.

Then, the user may contact the sunscreen of the portable electrospinning apparatus 1 with the skin (e.g., face) of the user who wants to coat. At this time, when the end of the discharge part 300 becomes a preset distance d from the skin, the sunscreen cream may be spun from the discharge part 300.

Specifically, the sunscreen cream moves from the storage part 200 to the drain part 300, and the sunscreen cream is gathered at the lower end of the drain part 300. Then, the power from the power supply part 400 is amplified by the voltage amplifying part 500 and then applied to the discharge part 300.

In the case of the embodiment of fig. 1 to 4 (in the case where the voltage amplification part 500 and the switch 110 are connected), the switch 110 is grounded through the body of the user, so that the body of the user functions as a current collector, and thus a voltage opposite to the discharge part 300 may be applied to the body of the user.

On the one hand, in the case of the embodiment of fig. 5 (the case where the voltage amplification part 500 and the metal collector 700 are connected), a voltage opposite to that of the discharge part 300 may be applied to the metal collector 700.

As described above, voltages having opposite polarities to each other are applied to the discharge portion 300 and the body of the user, or voltages having opposite polarities to each other are applied to the discharge portion 300' and the metal current collector 700, so that the sunscreen cream can be electrospun from the discharge portion 300 to be applied to the skin.

In this case, the guide structure 600 prevents direct contact with the drain 300, and the evaporated solvent can escape to the outside through the opening 640 formed in the guide structure 600, thereby reducing the risk of electric shock due to the sealed environment.

The effects of the above-described portable electrospinning device will be described below.

By providing the guide structure 600 in the portable electrospinning device 1, the user can directly contact the guide structure 600 with the skin to apply the spinning solution to the skin without considering the distance adjustment of the discharge portion 300 and the skin.

In addition, by providing the guide structure 600, the user can apply the spinning solution to the skin without the risk of electric shock.

In addition, the portable electrospinning apparatus includes the guide structure 600, so that the discharge part 300 can be prevented from directly contacting the skin.

In addition, since the opening 640 is formed in the guide structure 600, the evaporated solvent can escape from the inside of the guide structure 600 to the outside, and thus the electric shock risk of the user can be reduced.

In addition, the guide structure 600 is provided by a non-conductor, so that the spinning solution can be prevented from being adhered to the guide structure 600.

In addition, the portable electrospinning apparatus can be provided to be miniaturized, and thus can be conveniently carried by a user.

The following is a list of examples of the portable electrospinning apparatus described above.

Item 1 may provide a portable electrospinning apparatus, comprising: a housing forming an appearance, provided with a switch at one side, through which a user can adjust discharge of a spinning solution; a storage part, which can be provided at one side of the housing, for storing the spinning solution; a discharging part which can discharge the spinning solution stored in the storing part to the outside; a power supply part supplying current to the discharge part; a voltage amplifying part amplifying the voltage supplied from the power supply part and applying the voltage to the discharge part; and a guide structure extending from one side end of the housing, surrounding at least a part of the discharge portion, and extending downward from the discharge portion.

Item 2 may provide the portable electrospinning apparatus of item 1, wherein an opening is formed in at least a portion of the guide structure.

Item 3 may provide the portable electrospinning device of items 1 and 2, wherein the plurality of openings are formed along an outer periphery of the side surface portion of the guide structure, and a pitch between the plurality of openings is constant.

Item 4 may provide the portable electrospinning device of item 1 to item 3, wherein the surface area of the opening is 60% to 90% with respect to the surface area of the guide structure.

Item 5 may provide the portable electrospinning apparatus of item 1 to item 4, wherein a distance d1 between a lower side end of the discharge portion and a lower side end of the guide structure is 5mm to 50 mm.

Item 6 may provide the portable electrospinning device of item 1 to item 5, wherein a metal collector as a conductor may be provided at a lower side end portion of the guide structure, the discharging portion is applied with a preset voltage from the voltage amplifying portion, and the metal collector is applied with a voltage of opposite polarity to the discharging portion from the voltage amplifying portion.

Item 7 may provide the portable electrospinning apparatus of item 1 to item 6, wherein a metal collector cover as a nonconductor is provided on an underside of the metal collector.

Item 8 may provide the portable electrospinning apparatus of item 1 to item 7, wherein the discharge portion is formed of a metal, and the guide structure is formed of a non-conductive body.

Item 9 can provide the portable electrospinning apparatus of item 1 to item 8, wherein the spinning solution comprises a polymer, water, and a solvent.

Item 10 may provide the portable electrospinning device of item 1 to item 9, wherein the ratio of the solvent in the spinning solution as a whole is 10% to 94%.

Item 11 may provide the portable electrospinning device of item 1 to item 10, wherein the guide structure is formed in a cylindrical shape, and the drain is disposed at a center of the guide structure when the guide structure is viewed from below.

Item 12 may provide the portable electrospinning device of item 1 to item 11, wherein a quantitative discharge portion is provided at an upper side or a side surface of the storage portion to enable the spinning solution stored in the storage portion to aggregate a certain amount at the discharge portion.

Item 13 may provide the portable electrospinning apparatus of item 1 to item 12, wherein the guide structure comprises: a connecting portion connected with the housing; a side surface portion extending downward from the connection portion, surrounding at least a portion of the discharge portion; and a lower surface portion extending from the side surface portion and formed in a closed curve shape.

Item 14 may provide the portable electrospinning apparatus of item 1 to item 13, wherein the connection portion is provided to be selectively combined with the housing.

The portable electrospinning device according to the embodiments of the present invention has been described above by way of specific embodiments, which are merely examples, it being understood that the present invention is not limited thereto but has the broadest scope based on the basic concept disclosed in the present specification. Those skilled in the art can combine, replace, and implement the disclosed embodiments in patterns of shapes not shown, without departing from the scope of the present invention. In addition, it is clear that those skilled in the art can easily make changes or modifications to the embodiments based on the disclosure in the present specification, and the changes or modifications also fall within the scope of the claims of the present invention.

Claims

1. A portable electrospinning apparatus, comprising:

a housing forming an appearance, provided with a switch at one side, through which a user can adjust discharge of a spinning solution;

a storage part provided at one side of the housing and capable of storing the spinning solution;

a discharging part capable of discharging the spinning solution stored in the storing part to the outside;

a power supply part supplying current to the discharge part;

a voltage amplifying part amplifying the voltage supplied from the power supply part and applying the voltage to the discharge part; and

and a guide structure extending from one side end of the housing, surrounding at least a part of the discharge portion, and extending downward from the discharge portion.

2. The portable electrospinning apparatus of claim 1, wherein an opening is formed in at least a portion of the guide structure.

3. The portable electrospinning apparatus of claim 2, wherein the plurality of openings are formed along the periphery of the side surface portion of the guide structure, and the pitch between the plurality of openings is constant.

4. The portable electrospinning apparatus of claim 2, wherein the surface area of the opening is 60% to 90% with respect to the surface area of the guide structure.

5. The portable electrospinning apparatus of claim 1, wherein a distance between a lower end of the discharge portion and a lower end of the guide structure is 5mm to 50 mm.

6. The portable electrospinning apparatus of claim 1, wherein,

a metal collector as a conductor is provided at the lower end of the guide structure,

the discharging portion applies a preset voltage from the voltage amplifying portion,

the metal collector may be capable of applying a voltage of opposite polarity to the discharge portion from the voltage amplification portion.

7. The portable electrospinning apparatus of claim 6, wherein a metal collector cover is provided as a non-conductor on the underside of the metal collector.

8. The portable electrospinning apparatus of claim 1, wherein,

the discharge portion is formed of a metal,

the guide formation is formed of a non-conductive body.

9. The portable electrospinning apparatus of claim 1, wherein the spinning solution comprises a polymer, water, and a solvent.

10. The portable electrospinning apparatus of claim 9, wherein the ratio of the solvent in the spinning solution as a whole is 10% to 94%.

11. The portable electrospinning apparatus of claim 1, wherein,

the guide formation is formed in the shape of a barrel,

the drain portion is disposed at the center of the guide structure when the guide structure is viewed from below.

12. The portable electrospinning apparatus of claim 1, wherein a quantitative discharge part is provided at an upper side or a lateral side of the storage part to enable the spinning solution stored in the storage part to be coagulated at the discharge part by a certain amount.

13. The portable electrospinning apparatus of claim 1, wherein the guide structure comprises:

a connecting portion connected with the housing;

a side surface portion extending downward from the connection portion, surrounding at least a portion of the discharge portion; and

and a lower surface portion extending from the side surface portion and formed in a closed curve shape.

14. The portable electrospinning apparatus of claim 13, wherein the connection portion is provided to selectively engage with the housing.