KR101655775B1 - Handpiece for skin care - Google Patents

Abstract

The present invention relates to a handpiece for skin care. The handpiece includes a solution supply pump part and a solution discharge pump part to separately control supply pressure for supplying a cleaning solution inside a skin contact tip which makes contact with a skin, and negative pressure for discharging the cleaning solution inside the tip, so that a skin care solution inside the skin contact tip is supplied by a required quantity as quickly and rapidly as possible upon a skin care procedure, thus the time required is shortened upon a skin treating procedure, and efficiency of the skin treating procedure is improved. The skin care solution supplied inside the skin contact tip is increased in an amount of actual contact which is direct contact with the skin to improve usage efficiency of the cleaning solution, so that the amount of the cleaning solution used upon the skin care procedure is minimized, and waste of the cleaning solution is prevented to reduce costs required for the procedure.

Description

{Handpiece for skin care}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a handpiece for skin care, and more particularly, to a handpiece for skin care that minimizes waste of a cleaning fluid and improves efficiency of use of a cleaning fluid.

Recently, interest in skin cosmetics has been increasing and various skin care medical devices have been developed for patients who desire face lifting or skin tightening. As a skin beauty medical device, there are invasive medical devices that cut the skin tissue. However, since the stability of the operation and the rejection of the patient are emphasized, non-invasive medical devices that can be practiced without the incision of the skin tissue are attracting attention have.

In addition, since a skin barrier is formed and protected by a thick protein protective layer under the stratum corneum of the skin epidermis, and since the epidermis and dermis layer of the skin are separated by the protein protective layer, waste products encapsulated in the dermis layer It can not be effectively removed, and the nutrition of cosmetics can not penetrate deeply into the dermis layer, so the effect of skin protection is insufficient.

Accordingly, a skin care handpiece has been proposed in which a surface of the skin is polished to partially polish the surface of the skin while infiltrating functional cosmetic ingredients in the skin.

The handpiece for skin care is characterized in that a cleaning liquid is supplied into the tip while a tip provided at the end of the handpiece body is in contact with the surface of the skin and the tip is moved to scratch the surface of the skin, Is used for face lifting or skin tightening by infiltrating the skin into the skin.

US Patent No. 8048089 " Apparatus and method for treating skin " has been proposed as a conventional skin care handpiece.

US Patent No. 8048089 'Apparatus and method for treating a skin' is characterized in that a negative pressure is formed inside a tip to supply a washer fluid into a tip and simultaneously suck and discharge the supplied washer fluid.

More specifically, U.S. Patent No. 8048089, entitled "APPARATUS AND METHOD FOR SKIN TREATMENT APPARATUS," is provided with a cleaning liquid supply passage for supplying a cleaning liquid to a tip in a main body and a cleaning liquid inner discharge passage for discharging a cleaning liquid in the tip, The flow path and the discharge passage inside the tip communicate with each other through the inner space of the tip.

The 'apparatus and method for treating the skin' of US Patent No. 8048089 is a pump provided in a discharge line connected to the discharge channel of the cleaning liquid tip, and a negative pressure is formed inside the tip, thereby sucking the cleaning liquid through the cleaning liquid supply channel, And at the same time, the cleaning liquid supplied in the tip is discharged to the inside of the cleaning liquid tip discharge flow channel at a time.

However, the '8048089 apparatus and method for treating skin' has a structure in which a cleaning liquid is supplied into the tip with one pump, and the cleaning liquid supplied in the tip is sucked and discharged. Therefore, It is necessary to form a sufficient sound pressure that can be sucked and supplied so that a pressure loss occurs and it takes a long time for the cleaning liquid to be supplied into the tip during the initial skin treatment procedure so that the treatment time of the skin treatment treatment is increased and the efficiency of the skin treatment treatment is deteriorated .

In the apparatus and method for treating a skin, the cleaning solution is continuously supplied into the tip through the negative pressure formed in the tip, and the cleaning solution in the tip is discharged together with the supply, so that most of the cleaning solution supplied in the tip Which is not contacted with the skin and is discharged as it is, and the waste of the cleaning liquid is severely wasted.

It is an object of the present invention to shorten the time required for the skin care treatment by separately generating the supply pressure for supplying the cleaning liquid into the tip contacting the skin and the sound pressure for discharging the cleaning liquid in the tip respectively, And to provide a skin care handpiece that minimizes waste.

According to an aspect of the present invention, there is provided a handpiece for skin care comprising: a handpiece body member; a handle member detachably coupled to a distal end of the handpiece body member, A tip for skin contact having a tip internal supply passage and a tip internal discharge passage for introducing and discharging the skin care solution in the management solution flow space, A supply line for supplying the skin care solution to the tip inner supply channel; a solution supply pump unit provided in the skin care solution supply line for allowing the skin care solution to flow into the management solution flow space; A skin care solution which is connected to the tip internal discharge passage and discharges the skin care solution in the management solution flow space to the outside, And a solution discharge pump unit provided in the drain line unit and the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside.

One embodiment of the skin care handpiece according to the present invention may further include a pump controller for controlling the operations of the solution supply pump unit and the solution discharge pump unit, respectively.

In the present invention, the pump control section may stop the operation of the solution discharge pump section when the solution supply pump section is activated, and stop the operation of the solution supply pump section when the solution discharge pump section is activated.

In the present invention, the pump control unit may operate the solution supply pump unit intermittently or periodically.

In the present invention, the solution supply pump unit and the solution discharge pump unit may be an integral pump that is alternately operated by a single motor.

In the present invention, the pump control unit may include a solution supply switch unit for applying a signal to operate the solution supply pump unit by the operation of the operator.

In the present invention, the skin care solution supply line unit includes an inner supply channel formed inside the handpiece body member and connected to the tip inner supply channel, and an outer supply channel member connecting the inner body supply channel and the skin care solution supply unit Wherein the skin care solution discharge line portion includes an inner body discharge passage formed inside the handpiece body member and connected to the tip inner discharge passage and an outer discharge pipe member connecting the body inner supply passage and the waste skin solution storage portion Wherein the body internal supply passage is formed to penetrate from the upper surface portion to the lower portion of the handpiece body member and connected to the external supply pipe member through an inlet penetrating to the upper surface side, And the body discharge passage is connected to the upper surface of the handpiece body member When in the inlet side through the upper surface is formed to penetrate a portion of the exhaust pipe connected to an external member and, through the lower side outlet it can be connected directly with the tip inside the exhaust channel.

In the present invention, either the skin care solution supply line portion or the skin care solution discharge line portion may be directly connected to the skin contact tip without passing through the handpiece body member.

In the present invention, the skin care solution supply line portion and the skin care solution discharge line portion each include an inner flow passage penetrating from the upper surface to the lower surface of the handpiece body member, And one of the solution discharge line portions may have a tip connecting tube member for connecting an internal flow passage penetrating through the lower surface of the handpiece body member to one of the tip internal supply passage and the tip internal discharge passage.

In the present invention, the skin contact tip is formed with a channel separation space for separating one of the tip internal supply passage and the tip internal discharge passage into a plurality of internal flow paths, and the skin care solution supply line portion and the skin And one of the management solution discharge line portions may be disposed in the flow path separation space to connect the separated internal flow path.

In the present invention, the skin contact tip may include an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages.

In the present invention, between the inlet fence wall portion and the inlet side of the tip internal discharge passage, a flow path wall which obstructs the flow of the skin care solution flowing into the tip internal discharge passage through the discharge passage of the inlet fence wall portion is spaced apart And can be projected in plural.

In the present invention, one end of the flow path wall is fixed to the wall portion of the inlet fence, and the tartan portion extends to the discharge passage and is formed in a continuous zigzag shape, and may be disposed so as to be spaced apart in the width direction of the skin contact projection portion.

In the present invention, one end of the flow path wall is fixed to the wall portion of the inlet fence, and the tart portion extends to the discharge passage and is formed in a continuous wavy shape, and may be disposed to be spaced apart in the width direction of the skin contact projection.

In the present invention, a plurality of the flow path walls are disposed on both sides of the reference line connecting the outlet of the tip internal supply flow passage and the inlet of the tip internal discharge flow passage so as to be spaced apart from each other in the width direction, A plurality of intermediate flow path walls may be provided so as to be spaced apart from each other in a longitudinal direction of a reference line connecting the inlet of the tip internal discharge flow passage.

In the present invention, the flow path wall may be formed in a spiral shape, and the tip internal discharge passage may be disposed at the center portion.

In the present invention, the channel wall may have a wedge shape and a wedge-shaped opened side may be disposed so as to face the tip inner supply passage, and may be provided so as to be spaced apart from the inlet fence wall portion and the tip inner discharge passage.

In the present invention, the channel wall may have a single corrugated shape, and a single corrugated shape may be disposed laterally so as to be spaced apart from the inlet fence wall portion and the tip internal discharge passage.

The present invention separates and controls the supply pressure for supplying the cleaning liquid into the tip for contacting the skin contacting with the skin and the sound pressure for discharging the cleaning liquid in the tip, respectively, to provide the skin care solution in the skin contact tip as quickly as possible So that the time required for the skin treatment procedure is shortened and the efficiency of the skin treatment procedure is improved.

The present invention improves the efficiency of use of the cleaning liquid by increasing the actual contact amount of the skin care solution supplied directly to the skin from the skin care solution supplied to the skin-contacting tip, thereby minimizing the amount of the cleaning liquid used during the skin care treatment, It has the effect of reducing the cost of time.

1 is a sectional view showing an embodiment of a handpiece for skin abrasion treatment according to the present invention.
2 to 9 are sectional views showing different embodiments of a handpiece for skin polishing treatment according to the present invention.
FIG. 10 is an enlarged perspective view showing an embodiment of a skin contact tip in a handpiece for skin abrasion treatment according to the present invention. FIG.
11 to 14 are plan views showing different embodiments of a skin contact tip in a skin polishing treatment handpiece according to the present invention.

Hereinafter, the present invention will be described in more detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to the detailed description of the present invention, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a cross-sectional view illustrating an embodiment of a handpiece for skin abrasion treatment according to the present invention. Referring to FIG. 1, an embodiment of a handpiece for skin care according to the present invention includes: Shaped body member 100. The handpiece body member 100 is formed in a substantially rectangular shape.

It is noted that the handpiece body member 100 can be modified into various shapes that the practitioner holds by hand and can be easily hand held by a practitioner.

The tip of the handpiece body member 100 is engaged with a skin-contacting tip 200 that is in contact with the skin and moves while scratching the skin.

The tip 200 for contacting the skin is formed in a sloped shape at a lower end, that is, a tip portion that is in contact with the skin, so that the tip can be smoothly brought into contact with the skin.

The skin contact tip 200 may be detachably coupled to a distal end of the handpiece body member 100 at an upper end, that is, at a rear end side coupled to a distal end of the handpiece body member 100 A body coupling portion 203 is provided.

The body coupling portion 203 is inserted into the distal end portion of the handpiece body member 100 to be coupled thereto.

That is, a distal end portion of the handpiece body member 100 is provided with a tip fitting portion 110 which is inserted into the inside of the skin contacting tip 200, (203) is engaged with the tip fitting part (110) to be detachably coupled to the handpiece body member (100).

A sealing o-ring 111 is provided between the outer circumferential surface of the tip fitting portion 110 and the inner circumferential surface of the body coupling portion 203. When the sealing o-ring 111 is provided on the inner circumferential surface of the body coupling part 203, the sealing o-ring 111 must be separately provided on the inner circumferential surface of each skin-contacting tip 200 to be used, The manufacturing cost of the tip 200 can be increased. The sealing O-ring 111 is preferably provided on the outer circumferential surface of the tip fitting part 110 so as to seal between the O-ring 111 and the skin-contacting tip 200 to be replaced.

The tip 200 for skin contact has a shape opened to the lower side on the lower surface and a management solution flow space 210 in which the skin care solution flows into the inside and flows is formed.

The management solution flow space 210 is formed in a recessed shape on the lower surface of the skin contact tip 200.

That is, the management solution flow space 210 has a shape recessed by the outer wall portion 210a surrounding the outer periphery of the bottom surface.

A tip internal supply passage 201 for introducing the skin care solution into the management solution flow space 210 and a skin care solution in the management solution flow space 210 are discharged to the outside An internal discharge passage 202 is formed.

An outlet of the tip internal supply passage 201 and an inlet of the tip internal discharge passage 202 are formed on the bottom surface of the management solution flow space 210 so as to be spaced apart from each other in the longitudinal direction, The skin care solution flows into the management solution flow space 210 through the outlet of the tip internal discharge passage 202 through the inlet of the tip internal discharge passage 202, .

 The tips of the tip inner supply passage 201 and the tips of the tip inner discharge passage 202 are provided on the upper surface of the skin contact tip 200, Either the inlet or the outlet of the tip internal discharge passage 202 may be provided on the upper surface of the skin contact tip 200, respectively, which will be described in more detail below.

A flow path wall body 230 for forming a flow path of the skin care solution is formed on the bottom surface of the management solution flow space 210 between the inlet of the tip internal supply passage 201 and the outlet of the tip internal discharge passage 202 As a plurality of protrusions so as to be spaced apart from each other. Embodiments of the channel wall 230 will be described in more detail below.

The distal end of the skin contact tip 200 contacts the skin of the subject to be treated and scatters the skin contacted with the skin and moves around the outer circumference of the management solution flow space 210 The lower end portion of the outer wall portion 210a is in direct contact with the skin of the subject to be treated and is moved while scratching the contacted skin.

The tip of the skin contact tip 200, that is, the lower end is formed to have an inclined surface so as to be smoothly contacted with the skin of the face and moved.

The outer wall 210a surrounding the management solution flow space 210 directly contacts the skin of the subject to be treated, moves while scratching the skin, and removes keratin or sebum from the skin surface It is preferably used after being used for one time because of hygiene or the like and can be easily replaced by being easily inserted into the tip fitting part 110 through the body coupling part 203. [

Meanwhile, a skin care solution supply line unit 300 for supplying a skin care solution into the management solution flow space 210 is connected to the tip internal supply channel 201.

In addition, a skin care solution discharge line unit 500 for discharging the skin care solution, which is in contact with the skin, to the outside is connected to the tip internal discharge passage 202 in the management solution flow space 210.

The skin care solution supply line unit 300 includes a body internal supply passage 310 formed in the handpiece body member 100 and connected to the tip internal supply passage 201, And an external supply pipe member 320 connecting the skin care solution supply unit 800 with each other.

The body internal supply passage 310 is formed to penetrate from the upper surface portion to the lower surface portion of the handpiece body member 100 and is connected to the external supply pipe member 320 through an inlet penetrating to the upper surface side, And is connected to the tip internal supply passage 201 through an outlet.

The skin care solution discharge line unit 500 includes a body internal discharge passage 510 formed in the handpiece body member 100 and connected to the tip internal discharge passage 202, And an external drain pipe member 520 connecting the drainage unit 310 and the waste skin solution storage unit 900.

The body internal discharge passage 510 is formed to penetrate from the upper surface portion to the lower portion of the handpiece body member 100 and is connected to the external discharge pipe member 520 through an inlet penetrating to the upper surface side, And is connected to the tip internal discharge passage 202 through the outlet.

The skin care solution supply unit 800 may continuously supply a new skin care solution into the management solution flow space 210 through the skin care solution supply line unit 300 and the tip internal supply channel 201 A skin care solution storage tank for storing a skin care solution.

The waste skin solution storage unit 900 is in contact with the skin in the used administration solution flow space 210 and is discharged through the tip internal discharge passage 202 and the skin care solution discharge line unit 500 And a waste solution tank for temporarily storing the used skin care solution to be used.

The skin care solution supply line unit 300 is provided with a solution supply pump unit 400 that allows the skin care solution stored in the skin care solution supply unit 800 to flow into the management solution flow space 210.

The solution supply pump unit 400 is provided between the skin care solution supply unit 800 and the handpiece body member 100, that is, the external supply pipe member 320.

The skin care solution discharge line unit 500 includes a solution discharge pump unit 600 for discharging the skin care solution introduced into the management solution flow space 210 to the outside.

The solution discharge pump unit 600 is provided between the waste solution storage tank for storing the waste management solution and the handpiece body member 100, that is, the external discharge pipe member 520.

The handpiece for skin care according to the present invention further includes a pump control unit 700 for controlling the operation of the solution supply pump unit 400 and the solution discharge pump unit 600.

The pump control unit 700 stops the operation of the solution discharge pump unit 600 when the solution supply pump unit 400 is operated and when the solution discharge pump unit 600 is operated, The operation of the control solution 400 is stopped so that the skin care solution flowing into the management solution flow space 210 can be discharged after a maximum amount of the skin care solution comes into contact with the skin.

In order to prevent the skin care solution from being continuously introduced into the management solution flow space 210, the pump controller 700 operates the solution supply pump unit 400 intermittently or periodically to adjust the usage amount of the skin care solution Minimize it.

The solution supply pump unit 400 is a fixed amount supply pump for supplying the skin care solution in a quantitative manner into the management solution flow space 210.

The solution discharge pump unit 600 generates negative pressure in the management solution flow space 210 to suck and discharge the skin care solution in the management solution flow space 210.

In addition, the lower end of the skin-contacting tip 200 is moved while scratching the skin in a state in which the lower end of the skin-contacting tip 200 is completely in close contact with the skin by the negative pressure generated in the management solution flow space 210, .

That is, the pump control unit 700 activates the solution supply pump unit 400 to intermittently or periodically inject the skin care solution into the management solution flow space 210 as quickly as possible, and the solution discharge pump unit 600 are operated to form a negative pressure in the management solution flow space 210 and to discharge the skin care solution in the management solution flow space 210.

2 to 9 are sectional views showing different embodiments of a handpiece for skin polishing treatment according to the present invention.

2 and 3, the skin care solution supply line unit 300 and the skin care solution discharge line unit 500 respectively include body internal flow paths 310 and 510 formed inside the handpiece body member 100, Wherein one of the skin care solution supply line unit 300 for skin contact and the skin care solution discharge line unit 500 includes a side surface of the handpiece body member 100 and a tip 200 are connected to one another and the body inner flow paths 310 and 510 are connected to one of the tip inner supply flow path 201 and the tip inner discharge flow path 202, As shown in Fig.

The skin care solution supply line unit 300 and the skin care solution discharge line unit 500 may be connected to the tip inner supply channel 201 and the tip inner drainage unit 500 on the lower surface of the handpiece body member 100, And the other of the flow paths 202 is directly engaged with and connected to the other.

2, the body internal supply passage 310 is formed to penetrate from the upper surface portion to the lower portion of the handpiece body member 100, and is connected to the external supply pipe member And the skin care solution supply line unit 300 is connected to the body inner supply channel 310 at the side of the handpiece body member 100 and is connected to the body side supply channel 310 at the side of the skin contact tip 200 And a bypass supply pipe member 330 connected to the tip internal supply passage 201.

3, the body internal discharge passage 510 is formed to penetrate from the upper surface portion to the lower surface portion of the handpiece body member 100, And the skin care solution discharge line part 500 is connected to the body internal discharge flow path 510 at a side part of the handpiece body member 100 and is connected to the body- And a bypass exhaust pipe member 530 connected to the tip internal discharge passage 202 at the side portion.

4 and 5 show a state in which one of the skin care solution supply line unit 300 and the skin care solution discharge line unit 500 does not pass through the handpiece body member 100, That is, directly connected to one of the tip internal supply passage 201 and the tip internal discharge passage 202. In this case,

4, the skin care solution supply line unit 300 is connected to the skin care solution supply unit 800 and the tip internal supply channel 800 from the outside of the handpiece body member 100, And an external main supply pipe member 301 for directly connecting the main pipe 201 to each other.

That is, the skin care solution supply line unit 300 includes an outer main supply pipe member 300 for directly connecting the skin care solution supply unit 800 and the tip inner supply channel 201 from the outside of the handpiece body member 100, Wherein the skin care solution discharge line unit 500 includes a body internal discharge passage 510 formed inside the handpiece body member 100 and connected to the tip internal discharge passage 202, And an external discharge pipe member 520 connecting the body internal supply passage 310 and the waste skin solution storage portion 900.

The body internal discharge passage 510 is formed to penetrate from the upper surface portion to the lower portion of the handpiece body member 100 and is connected to the external discharge pipe member 520 through an inlet penetrating to the upper surface side, And is connected to the tip internal discharge passage 202 through the outlet.

5, the skin care solution supply line unit 300 is connected to the waste skin solution storage unit 900 and the tips (not shown) on the outside of the handpiece body member 100, And an external main discharge pipe member 501 for directly connecting the internal discharge flow paths 202 with each other.

That is, the skin care solution discharge line unit 500 includes an external main discharge pipe 900 directly connecting the waste skin solution storage unit 900 and the tip internal discharge passage 202 from the outside of the handpiece body member 100, Wherein the skin care solution supply line unit 300 includes a body internal supply channel 310 formed inside the handpiece body member 100 and connected to the tip internal supply channel 201, And an outer supply pipe member 320 connecting the inner body supply channel 310 and the skin care solution supply unit 800.

The body internal supply passage 310 is formed to penetrate from the upper surface portion to the lower surface portion of the handpiece body member 100 and is connected to the external supply pipe member 320 through an inlet penetrating to the upper surface side, And is connected to the tip internal supply passage 201 through an outlet.

4 to 9, the solution supply pump unit 400 and the solution discharge pump unit 600 are integrated pumps 410 that are alternately operated by a single motor.

When the vane rotation axis of the solution supply pump unit 400 is connected to the shaft of the motor, the vane rotation axis of the solution discharge pump unit 600 is separated from the shaft of the motor.

In addition, when the vane rotation axis of the solution discharge pump unit 600 is connected to the shaft of the motor, the vane rotation axis of the solution supply pump unit 400 is separated from the shaft of the motor.

When the skin care solution is introduced into the management solution flow space 210, the pump controller 700 connects the vane rotation shaft of the solution supply pump unit 400 to the shaft of the motor and rotates the vane rotation shaft, ) From the shaft of the motor.

When the skin care solution in the management solution flow space 210 is discharged to the outside, the pump control unit 700 connects the vane rotation shaft of the solution discharge pump unit 600 to the shaft of the motor, The vane rotating shaft of the motor 400 is separated from the shaft of the motor.

 That is, the integral pump 410 includes the solution supply pump unit 400 having vanes detachably coupled to the shaft of the motor on both sides of the motor, and the solution discharge pump unit 600 The solution supply pump unit 400 and the solution discharge pump unit 600 are alternately operated by having a structure in which one side is not operated when the other is operated.

The pump control unit 700 may include a solution supply switch unit for applying a signal to operate the solution supply pump unit 400 by an operator's operation.

The operator can determine whether the skin care solution is needed and selectively apply the signal to operate the solution supply pump unit 400 by selectively operating the solution supply switch unit only when the skin care solution is further needed, 210 may be intermittently supplied with the skin care solution.

6 and 7, the skin care solution supply line unit 300 and the skin care solution discharge line unit 500 are respectively connected to the upper and lower surfaces of the handpiece body member 100, Wherein the skin care solution supply line unit 300 and the skin care solution discharge line unit 500 include channels 310 and 510, And tip connecting pipe members 340 and 540 for connecting the internal flow paths 310 and 510 to either the tip internal supply flow path 201 and the tip internal discharge flow path 202.

The skin care solution supply line unit 300 for skin contact and the skin care solution discharge line unit 500 may be connected to the tip inner supply channel 201 and / And one of the tip internal discharge flow paths 202 is directly engaged with and connected to the other.

6, the handpiece body member 100 is provided with a tip fitting portion 110 protruding from the lower surface thereof to receive the skin-contacting tip 200, The body contacting portion 203 is engaged with the tip fitting portion 110 so that the tip internal discharge passage 202 is protruded from the inside of the body The tip end portion of the skin contact tip 200 is connected to the discharge flow path 510. The tip end portion of the tip end portion of the tip inner supply channel And a protruding portion provided inside the body 201 is provided.

That is, the protrusion protruding to one side from the lower portion of the skin-contacting tip 200 is separated from the lower surface of the handpiece body member 100 through which the body inner supply passage 310 penetrates, so that the handpiece body member 100 and the upper surface of the protrusion are formed with a space.

The skin care solution supply line unit 300 includes a lower end portion of the body internal supply passage 310 penetrating through the lower surface of the handpiece body member 100 and a lower end portion of the skin- And a tip connection supply pipe portion 340 connecting the tip internal supply passage 201 provided in the protrusion protruding to the tip.

7, the handpiece body member 100 has a tip fitting portion 110 protruding from the lower surface of the handpiece body 100 to receive the skin-contacting tip 200, And the body contacting portion 203 is engaged with the tip fitting portion 110 so that the tip internal supply passage 201 is inserted into the body And the tip inner discharge channel (100) is connected to the channel (310) in such a manner that the tip (200) is protruded to the lower side of the skin contact tip (200) and spaced apart from the lower surface of the handpiece body member 202 are provided inside.

That is, the protrusion protruding to one side from the lower portion of the skin-contacting tip 200 is separated from the lower surface of the handpiece body member 100 through which the body inner discharge flow path 510 penetrates, 100 and a space is formed between the lower surface and the protrusion.

The skin care solution discharge line unit 500 includes a lower end portion of the body internal discharge passage 510 passing through the lower surface of the handpiece body member 100 and a lower end portion of the body- And a tip connection / discharge pipe member 540 connecting the tip internal discharge passage 202 provided in the protrusion protruding to the tip.

8 and 9 show that one of the tip internal supply passage 201 and the tip internal discharge passage 202 is connected to the skin contact tip 200 by a plurality of internal passages 201a, 201b, 202a and 202b Wherein one of the skin care solution supply line unit 300 and the skin care solution discharge line unit 500 is formed in the flow path separation spaces 204 and 205, And an intermediate connecting pipe member 350, 550 which are disposed in the inner connecting pipe and connect the separated inner flow path.

8, the skin-contacting tip 200 is formed to have a supply passage separation space 204 for separating and separating the tip inner supply passage 201 into a plurality of portions, The management solution supply line unit 300 may further include an intermediate connection pipe member 350 disposed in the supply passage separation space 204 and connecting the plurality of tip internal supply channels 201 separated from each other.

For example, the skin-contacting tip 200 is formed in a U-shape, and the supply passage separating space 204 is formed at an intermediate portion thereof so that the tip internal supply passage 201 is connected to the upper internal supply passage 201a, The intermediate connection pipe member 350 is disposed in the supply passage separating space 204 and has an upper end connected to the lower end of the upper internal supply passage 201a and an upper end connected to the lower internal supply passage 201b, And may be connected to the upper end of the first housing 201b.

9, the skin contact tip 200 is formed to have a discharge passage separation space 205 for separating and separating the tip internal discharge passage 202 into a plurality of tips, The management solution discharge line unit 500 may further include an intermediate connection discharge pipe member 550 disposed in the discharge passage separation space 205 and connecting the plurality of the tip internal discharge flow paths 202 separated from each other.

For example, the skin-contacting tip 200 is formed in a U-shape, and the discharge passage separating space 205 is formed at an intermediate portion thereof to separate the tip internal discharge passage 202 from the upper internal discharge passage 202a and the lower internal discharge passage The intermediate connection pipe member 550 is disposed in the discharge passage separation space 205 and has an upper end connected to a lower end of the upper internal discharge passage 202a and an upper end connected to the lower internal discharge passage 202b.

10 to 14 are views showing different examples of the skin contact tip 200 in the skin polishing treatment handpiece according to the present invention.

10 to 14, the skin contact tip 200 protrudes on the bottom surface of the management solution flow space 210 so as to surround the outlet of the tip internal supply passage 201 and has a plurality of discharge passages And an inlet fence wall portion 220 provided with an inlet fence 220a.

The inlet fence wall portion 220 surrounds the outlet of the tip internal supply passage 201 to form an inflow space in which the skin care solution is primarily introduced into the management solution flow space 210 .

The inlet fence wall portion 220 surrounds the outlet of the tip internal supply passage 201 to divide the inflow space into which the skin care solution can be temporarily stored and temporarily stored in the management solution flow space 210 .

The skin care solution is temporarily stored in the inlet fence wall portion 220, that is, in the inflow space, and then flows into the management solution flow space 210 outside the inflow space through the discharge passage 220a Flows in the management solution flow space 210 toward the inlet side of the tip internal discharge flow passage 202, and then sucked into the tip internal discharge flow passage 202 and discharged.

That is, in the management solution flow space 210, a negative pressure is generated by the operation of the solution discharge pump unit 600 to discharge the skin care solution to the outside through the tip internal discharge passage 202. The inlet fence The wall portion 220 functions to partially block the negative pressure around the tip internal supply passage 201 and is discharged to the outlet of the tip internal supply passage 201 and flows into the management solution flow space 210 So that the skin care solution is rapidly flowed so as to be sucked into the tip internal discharge passage 202 directly by the negative pressure.

Therefore, when the skin care solution is partially stagnated in the inflow space in the state where the negative pressure is generated in the management solution flow space 210, the skin contact tip 200 according to the present invention contacts the skin The skin care solution stored in the inflow space may be more uniformly contacted with the skin.

The solution supply pump unit 400 may be configured such that the lower surface of the skin contact tip 200 according to the present invention, that is, the lower surface of the outer wall portion 210a, The amount of the skin care solution supplied to the solution supply pump unit 400 may be variously modified depending on the skin condition of the subject and the skin care treatment type I will reveal.

The inlet fence wall portion 220 includes a plurality of discharge passages 220a on the outer circumference thereof to uniformly discharge the skin care solution supplied into the inflow space into the management solution flow space 210 in a plurality of directions .

The tip internal discharge passage 202 is formed in a portion facing the tip internal discharge passage 202 and on the opposite side to discharge the skin care solution to the opposite side of the tip internal discharge passage 202, The solution flows as far as possible to the tip internal discharge passage 202, thereby increasing the contact time with the skin and the contact with the skin in the skin care solution of the same supply amount.

The tip of the tip internal discharge passage 202 is connected to the tip internal discharge passage 202 through the discharge passage 220a of the inlet fence wall portion 220, A plurality of flow path walls 230, which interfere with the flow of the administration solution, are projected away from each other.

The flow path wall 230 is formed so that a channel through which the skin care solution flows can be formed between the inlet fence wall portion 220 and the inlet side of the tip internal discharge passage 202, So that the contact time with the skin and the contact with the skin in the skin care solution of the same supply amount are maximized.

FIG. 10 is an enlarged perspective view showing an embodiment of a skin contact tip 200 in a handpiece for skin abrasion treatment according to the present invention.

10, one end of the flow path wall 230 is fixed to the inlet fence wall portion 220 and the tartan portion is extended to the discharge passage 220a to form a continuous zigzag shape, So that a channel through which the skin care solution flows can be formed as an example.

And a continuous zigzag flow path is formed between the flow path walls 230 formed in a continuous zigzag shape.

11, one end of the flow path wall 230 is fixed to the inlet fence wall portion 220 and the tartan portion is extended to the discharge passage 220a to form a continuous wavy shape, So that a channel through which the skin care solution flows can be formed as an example.

And a continuous wavy channel is formed between the channel walls 230 formed in a continuous wavy shape.

The corrugated flow path continuous with the plurality of flow path walls 230 on both sides of the reference line connecting the outlet of the tip internal supply flow passage 201 and the inlet of the tip internal discharge flow passage 202 is symmetrical And a plurality of intermediate flow path walls 230 may be provided so as to be spaced apart from each other in a longitudinal direction of a reference line connecting an outlet of the tip internal supply flow passage 201 and an inlet of the tip internal discharge flow passage 202.

This is to increase the use efficiency of the skin care solution by delaying the movement speed when the skin care solution flows from the tip internal supply passage 201 to the tip internal discharge passage 202 as much as possible.

12 shows an example in which the flow path wall body 230 is formed in a spiral shape. The flow path wall body 230 is formed in a spiral shape and the inlet of the tip internal discharge flow path 202 is disposed at the center portion. For example.

It is noted that the channel wall 230 may have a spiral shape and one end may be fixed to the inlet fence wall 220. This is because the skin care solution discharged through the plurality of discharge passages 220a of the inlet fence wall portion 220 smoothly flows into the tip internal discharge passage 202 formed at the central portion along the spiral flow passage wall 230 To flow.

13 shows a state in which the channel wall 230 has a wedge shape and a wedge shaped side is directed to the tip internal supply passage 201 so that the inlet fence wall portion 220 and the tip internal discharge passage 202 A plurality of spaced apart portions are provided.

14 shows an example in which the channel wall 230 has a single corrugated shape and a single corrugated shape is disposed laterally and spaced apart from the inlet fence wall portion 220 and the tip internal discharge passage 202 Respectively.

The flow path wall 230 may include various examples of improving the use efficiency of the skin care solution by interfering with the flow of the skin care solution between the inlet fence wall portion 220 and the inlet side of the tip internal discharge passage 202 It will be understood that modifications may be made.

The inlet fence wall portion 220 and the flow path wall portion 230 protrude from the bottom surface of the management solution flow space 210 to have a lower height than the outer wall portion 210a, 210, when the negative pressure is generated, the skin is strongly adhered to the skin, and the skin or the skin of the skin is scratched and removed when the skin-contacting tip 200 is moved.

The inlet fence wall portion 220 and the flow path wall portion 230 protrude from the bottom surface of the management solution flow space 210 so as to have a higher height than the outer wall portion 210a, The outer surface of the outer wall 210a is contacted with the skin so that the outer surface of the skin contact tip 200 can be scratched and removed.

The skin contact tip 200 forms an inflow space that serves to temporarily keep the skin care solution in the management solution flow space 210 formed on the lower surface, Thereby maximizing the amount of contact with the skin on the basis of the same supply amount of the same skin care solution. Thus, the efficiency of use of the cleaning solution can be improved, and in the skin care treatment, Minimize usage and prevent wastage of cleaning liquid, thereby reducing the cost of operation.

In the present invention, the supply pressure for supplying the cleaning liquid into the tip (200) for skin contact with the skin and the sound pressure for discharging the cleaning liquid in the tip are separately controlled, It is possible to supply the control solution as quickly and quickly as possible, thereby shortening the time required for skin treatment and improving the efficiency of skin treatment.

The present invention improves the use efficiency of the cleaning liquid by increasing the actual contact amount of the skin care solution supplied in the skin contact tip (200) directly to the skin, thereby minimizing the amount of the cleaning liquid used during the skin care treatment, Thereby reducing the cost of the operation.

It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

100: Handpiece body member 110:
111: O-ring for sealing 200: Tip for skin contact
201: Tip internal supply passage 201a: Upper internal supply passage
201b: lower internal supply flow passage 202: tip internal discharge flow passage
202a: Upper internal discharge passage 202b: Lower internal discharge passage
203: body coupling portion 204: supply passage separation space
205: discharge channel separation space 210: management solution flow space
210a: outer wall part 220: inlet fence wall part
220a: discharge passage 230: flow passage wall
300: skin care solution supply line unit 301: outer main supply pipe member
310: inner body supply channel 320: outer supply pipe member
330: bypass pipe member 340: tip connection pipe member
350: intermediate connection pipe member 400: solution supply pump part
410: integral pump 500: skin care solution discharge line part
501: External main discharge pipe member 510: Internal discharge pipe
520: External discharge pipe member 530: Bypass pipe member
540: Tip connection outlet pipe member 550: Intermediate connection outlet pipe member
600: solution discharge pump unit 700: pump control unit
800: Skin care solution supply part 900: Lung skin solution storage part

Claims (18)

A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein one of the skin care solution supply line portion and the skin care solution discharge line portion is directly connected to the skin contact tip without passing through the handpiece body member. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
The skin care solution supply line portion and the skin care solution discharge line portion each include an inner flow passage penetrating from the upper surface to the lower surface of the handpiece body member, Wherein one of the tip and the tip inner discharge flow path has a tip connecting tube member for connecting an inner flow path penetrating through the lower surface of the handpiece body member to one of the tip inner supply flow path and the tip inner discharge flow path. Hand piece. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the skin contact tip is formed with a channel separating space for separating one of the tip internal supply passage and the tip internal discharge channel into a plurality of internal flow paths and the skin care solution supply line portion and the skin care solution discharge And an intermediate connection pipe member, one of the line portions being disposed in the flow path separation space and connecting the separated internal flow path. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein the channel wall is fixed at one end thereof to the inlet fence wall portion and the tartar portion is formed in a continuous zigzag shape extending to the discharge passage and is arranged to be spaced apart in the width direction of the skin contact projection portion. Hand piece. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein the channel wall is fixed at one end to the wall portion of the inlet fence and the tartan portion is formed in a continuous wavy shape extending to the discharge passage and is spaced apart in the width direction of the skin contact projection portion. Hand piece. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein a plurality of the flow path walls are disposed on both sides of a reference line connecting an outlet of the tip internal supply passage and an inlet of the tip internal discharge passage so as to be spaced apart from each other in the width direction, Wherein a plurality of intermediate flow path walls are provided so as to be spaced apart from each other in a longitudinal direction of a reference line connecting the inlet of the discharge flow path. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein the flow path wall is formed in a spiral shape and the inlet of the tip internal discharge flow passage is disposed at a center portion thereof. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein the channel walls are wedge-shaped, and a wedge-shaped expanded side is disposed so as to face the tip internal supply passage, and is provided so as to be spaced apart from the inlet fence wall portion and the tip internal discharge passage. Hand piece. A handpiece body member;
A management solution flow space which is detachably coupled to the distal end of the handpiece body member and opens downward on a lower surface thereof to allow a skin care solution to flow therethrough is formed and the skin care solution in the management solution flow space is introduced and discharged A tip for skin contact having a tip inner supply passage and a tip inner discharge passage;
A skin care solution supply line portion connected to the tip internal supply passage to supply the skin care solution to the tip internal supply passage;
A solution supply pump unit provided in the skin care solution supply line unit to allow the skin care solution to flow into the management solution flow space;
A skin care solution discharge line connected to the tip internal discharge passage for discharging the skin care solution in the management solution flow space to the outside; And
And a solution discharge pump unit provided in the skin care solution discharge line unit for discharging the skin care solution from the management solution flow space to the outside,
Wherein the tip for skin contact has an inlet fence wall portion protruding to surround the outlet of the tip inner supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. And,
Wherein the channel wall has a single corrugated shape and a single corrugated shape is disposed laterally and spaced apart from the inlet fence wall portion and the tip internal discharge passage. delete The method according to any one of claims 1 to 3,
Wherein the skin contact tip comprises an inlet fence wall portion protruding to surround the outlet of the tip internal supply passage on the bottom surface of the management solution flow space and having a plurality of discharge passages. . The method of claim 11,
A plurality of protruding channel walls are formed between the wall portion of the inlet fence and the inlet side of the tip inner discharge passage so as to block the flow of the skin care solution flowing into the tip inner discharge passage through the discharge passage of the inlet fence wall portion. Wherein the skin care handpiece comprises: The method according to any one of claims 1 to 9,
Further comprising a pump control unit for controlling the operation of the solution supply pump unit and the solution discharge pump unit, respectively. 14. The method of claim 13,
Wherein the pump control section stops the operation of the solution discharge pump section when the solution supply pump section is activated and stops the operation of the solution supply pump section when the solution discharge pump section is activated. 14. The method of claim 13,
Wherein the pump control unit operates the solution supply pump unit intermittently or periodically. The method according to any one of claims 1 to 9,
Wherein the solution supply pump portion and the solution discharge pump portion are integrally formed by a single motor and are alternately operated. 14. The method of claim 13,
Wherein the pump control portion includes a solution supply switch portion for applying a signal to operate the solution supply pump portion by operation of a practitioner. The method according to any one of claims 1 to 9,
The skin care solution supply line unit includes an inner supply channel formed inside the handpiece body member and connected to the tip inner supply channel, and an outer supply channel member connecting the inner body supply channel and the skin care solution supply unit,
The skin care solution discharge line portion includes an inner body discharge passage formed inside the handpiece body member and connected to the tip inner discharge passage, and an outer discharge tube member connecting the body inner supply passage and the waste skin solution storage portion,
Wherein the body internal supply passage is formed to penetrate from the upper surface portion to the lower surface portion of the handpiece body member and connected to the external supply pipe member through an inlet penetrating to the upper surface side, Connected,
Wherein the body internal discharge passage is formed to penetrate from the upper surface portion to the lower surface portion of the handpiece body member and connected to the external discharge pipe member through an inlet penetrating to the upper surface side, Wherein the handpiece is connected to the skin.

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