KR101692941B1 - Device for dosing liquid through the skin - Google Patents

Abstract

A device for feeding a liquid for the skin according to an embodiment of the present invention comprises: a housing having an opening part for spraying a liquid, and a handle unit capable of being gripped by a user; a trigger installed on the handle unit to be rotated, and pressed by a user; a drug supply unit installed in the housing, and supplying a drug into the housing; a driving unit installed in the housing, and generating rotary force when the trigger is pressed; a spray unit disposed in the housing to be coupled with the driving unit, feeding the drug into the housing when the trigger is pressed, and spraying the drug fed into the housing to the outside of the housing through the opening part when the pressing of the trigger is canceled; and a penetrating unit disposed in the circumference of the spray unit, linearly moving toward the opening part side when a drug is sprayed to the outside of the housing, and making a needle disposed in the end thereof protrude to the outside of the housing. When the trigger is pressed and canceled and the drug is sprayed to the surface of skin while the end of the housing having the opening part formed therein come in contact with the skin, the needle protrudes to the outside of the housing, penetrates through an epidermal layer having the drug coated thereon, reaches a dermal layer while the drug is put thereon, and makes the drug penetrate into the dermal layer.

Description

[0001] The present invention relates to a device for dosing liquid for skin,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an electric gun injecting device for dermatologic skin for infiltrating a liquid such as a drug having predetermined efficacy into the skin to improve skin or beauty.

Generally, human skin is divided into epidermal (epidermal) layer, dermal (endothelial) layer, and subcutaneous tissue layer. The dermis is filled with collagen and elastin, and the amount of collagen and elastin gradually decreases as the body ages. As a result, the portion where the amount of collagen and elastin is relatively reduced is thinned and dried, or the elasticity of the skin is reduced and wrinkles are generated.

In the past, in order to maintain elastic skin, a method of directly applying various nutrients to the epidermal layer to produce and help collagen and elastin has been utilized so that the nutrients penetrate into the dermal layer.

However, the amount of nutrients applied to the skin through the skin layer and penetrated into the dermal layer through the above-described method was practically only marginal.

Therefore, conventionally, a method has been developed in which an artificial hole is formed in the epidermal layer and the dermal layer of the skin, and a nutrient substance is applied to the hole formed portion.

More specifically, conventionally, there is provided a roller having needles protruding in a predetermined length on its outer circumferential surface. By bringing the roller into contact with the skin, a hole through the skin layer and the dermal layer is artificially formed, By applying the substance, a method of increasing the absorption capacity of the nutrients absorbed into the dermal layer was developed.

However, in such a case, since the needle does not contact with the skin vertically but is rotated along the radius of rotation of the roller and lifts up the skin layer, there is a problem that the skin and the dermal layer are scratched and the pain of the user is increased.

In addition, conventionally, a nutrient is applied to the surface of the skin layer after artificially forming holes in the skin layer and the dermal layer, but the skin basically has a function of protecting the wound from the outside through regeneration when a wound is generated, The holes are instantly clogged even if they are artificially formed, and the amount of nutrients absorbed into the dermal layer through the holes is very small.

In addition, in the past, a practitioner directly applied a small amount of nutrients to a wound area after causing a wound on the skin using a roller, but in this case, since the operator performs all the operations directly by hand, Not only time consuming but also difficulty in ensuring the accuracy and stability of the procedure, such as worsening of the skin, is caused when a practitioner having a low skill level performs the procedure.

On the other hand, in a hospital or a clinic, a skin is regenerated by using a laser, or a microneedle is inserted directly into a dermal layer using a GUN-type instrument equipped with a microneedle, And a medical device for injecting the blood.

However, these medical devices have the effect of regenerating the skin and supplying the nutritional quality to the dermis layer excellently, but they are bulky, the price is very expensive, the user visits the hospital or clinic directly, There was a problem that it could not be used without the use.

Korean Utility Model Registration No. 20-0395359

The problem to be solved by the present invention is to eliminate the existing treatment method which is dependent on manual operation and to automatically penetrate the dermal layer of the skin to ensure accuracy and safety, as well as minimizing damage to the skin, To provide a drug injection device for skin which can be easily and conveniently used at home.

The apparatus for injecting a drug for a skin according to an embodiment of the present invention includes a housing having an opening through which a drug is injected and a handle capable of being held by a user, a trigger rotatably installed on the handle, A driving part provided inside the housing to generate a rotational force when the trigger is pressed, a driving part disposed inside the housing and coupled to the driving part, A spraying part for injecting a drug into the inside of the housing when the trigger is pressurized and injecting a drug introduced into the inside of the housing to the outside of the housing through the opening when the trigger is released, When the medicine is sprayed to the outside of the housing, And a penetrating portion that linearly moves toward the opening portion and projects a needle provided at an end portion to an outer side of the housing, wherein the needle is configured such that when the end portion of the housing having the opening portion is in contact with the skin, And when the drug is sprayed on the surface of the skin, it protrudes to the outside of the housing, penetrates the skin layer coated with the drug, and reaches the dermis layer in a state in which the drug is present, thereby penetrating the dermis layer.

Wherein the drug supply unit includes a storage tank that stores medicines in the inside and is coupled to an upper portion of the housing, and a storage tank that is disposed between the spray unit and the storage tank, And a tank opening / closing valve for selectively opening and closing the tank.

The tank opening / closing valve is connected to an inlet of the storage tank and the jetting section, respectively. The tank opening / closing valve elastically supports the tank opening and closing elastic member, which is disposed inside the oil pipe, And a hermetic member for opening and closing the inlet of the storage tank.

The driving unit may include a power generating unit coupled to the trigger to generate power when the trigger is pressed, and a driving unit coupled to the power generating unit. When the trigger is pressed, the driving unit rotates clockwise, And a power transmission member for transmitting the power transmission member.

The injection unit is coupled to the driving unit to convert a rotational motion of the driving unit into a rectilinear motion to generate a pressure difference in an inner space communicating with the drug supply unit to allow the drug to flow into the inner space, A pump connected to a tip of the pump to close the flow path formed inside when the trigger is pressed and to open the flow path when the trigger is released, And a spray tip for spraying the pressurized drug outwardly.

Wherein the pump includes a body portion forming an accommodation space inside, a first tube portion coupled with the drug supply portion to communicate the drug supply portion and the accommodation space, and a second tube portion communicating with the injection tip, A cylinder including a tube portion; a cylinder coupled to the driving portion, linearly reciprocating along an inner circumferential surface of the body portion when the driving portion rotates, generating a pressure difference in the accommodation space to introduce the drug into the accommodation space, And a main elastic member coupled to the elastic member supporting protrusion provided on the housing and elastically supporting the piston toward the injection tip side.

Wherein the piston includes a head portion disposed in the receiving space, a pressing portion extending in a radial direction from the end portion of the head portion and moved rearward when the trigger is pressed to press the penetrating portion, And a linear gear portion engaging with the driving portion is formed on an outer surface of the seat portion. When the trigger is extended in the radial direction from the outer circumferential surface of the seat portion to release the pressing of the trigger, And a striking part moving forward to press the end of the infiltrating part.

And a nozzle open / close valve disposed in the flow path to close the flow path when the trigger is pressed, and to open the flow path when the trigger is released, And a spray nozzle installed in the front of the cap part and spraying the drug introduced into the flow path to the outside through the spray hole.

Wherein the penetration portion is disposed on the inner side of the housing so as to be linearly movable along the outer circumferential surface of the jet portion, the protrusion protruding outward at a predetermined length on one surface of the opening, the plurality of needles being arranged along the circumferential direction, And an auxiliary elastic member disposed inside the protrusion and coupled to the elastic member supporting protrusion provided on the housing to elastically support the protrusion toward the opening.

A plurality of supporting protrusions protruding from a surface of the protruding portion in a predetermined length along a circumferential direction are formed on a surface of the protruding portion, the needles being provided at a portion where the supporting protrusions are formed, And an auxiliary elastic member receiving groove on which the auxiliary elastic member is seated is formed on the inner side of the protruding portion and a supporting portion which is pressed by the ejecting portion when the trigger is pressed, A protruding protrusion may be formed.

The locking member is locked to the inner surface of the housing by being pushed by the locking protrusion moved rearward and widened to the outside and hooked on the locking protrusion through the locking groove formed on the inner side to fix the protrusion to the preset position, Additional units can be installed.

According to the present invention, it is possible to precisely and quickly perform the procedure by eliminating the conventional method which depends on the manual operation of the practitioner, and by forming the electric gun-type drug infusion device which automatically infiltrates the drug into the dermal layer of the skin by only pressing and releasing the trigger. It is possible to minimize the pain and perform the operation stably.

In addition, the needles can be vertically contacted with the skin to minimize damage to the skin, and the drug can be applied to the surface of the skin to be contacted with the needle before the needle is inserted into the dermal layer through the skin layer, The penetration rate of the drug penetrating into the dermal layer can be maximized.

In addition, since the structure is simple, it can be carried and the manufacturing cost can be reduced, it can be easily and conveniently used at home at a low price.

FIGS. 1 to 4 are views schematically showing a drug injecting process of a drug injecting apparatus for a skin according to an embodiment of the present invention.
5 is a perspective view schematically showing a front surface of a drug injection device for a skin according to an embodiment of the present invention.
FIG. 6 is a plan view schematically showing a process in which a projecting portion of a drug injection device for a skin according to an embodiment of the present invention is pressed to a striking portion after being coupled to a locking portion.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 4 are views schematically showing a drug injecting process of a drug injecting apparatus for a skin according to an embodiment of the present invention, FIG. 5 is a perspective view schematically showing a front surface of a drug injecting apparatus for a skin according to an embodiment of the present invention And FIG. 6 is a plan view schematically illustrating a process in which a projecting portion of a drug injection device for a skin according to an embodiment of the present invention is pressed to a striking portion after being coupled to a locking portion.

1 to 4, a device 1 for injecting a drug for a skin according to an embodiment of the present invention (hereinafter, referred to as 'a device for injecting a drug for skin 1') automatically inserts a drug A trigger 20, a drug supply unit 30, and a driving unit 40. The drug supply unit 30 includes a housing 10, a trigger 20, a drug supply unit 30, and a driving unit 40.

The housing 10 is formed in a GUN shape which is easy to carry and can be operated by one hand and has an opening 11 through which a medicine is sprayed on one side and a grip portion 12 are formed. For example, the end of the housing 10 where the opening 11 is formed is formed in a structure that can stably adhere to the skin, and further, a material having a cushioning effect is attached to the end thereof, It is possible to minimize the occurrence of an unpleasant feeling. In addition, gripping means (not shown) can be applied to the handle 12 to improve the feeling of grip from the user and to prevent slippage.

A trigger 20 is rotatably provided on the handle 12 and is pressed or released by the user. That is, when the user grasps the handle 12, the trigger 20 is provided at the position where the user's finger is placed, and is pressed by the user or released. Here, although the trigger 20 is not shown in the drawings, the trigger 20 may be restored to its original position when the pressing is released by being supported by an elastic member or the like.

The drug supply unit 30 is installed in the housing 10 and supplies the drug D to the inside of the housing 10. For example, at the entrance of the drug supply part 30 installed in the housing 10, fastening means capable of fastening with the housing 10 can be formed.

More specifically, the drug supply unit 30 includes a storage tank 31 in which the drug D is stored inside and is coupled to the upper portion of the housing 10, a cylinder 511 of the jetting unit 50, The cylinder 511 of the jetting section 50 and the storage tank 31 are connected to each other and the oil is supplied to the reservoir tank 31 in accordance with the pressure difference generated from the jetting section 50 when the trigger 20 is operated. And a tank opening / closing valve 32 for selectively opening and closing the inlet of the tank 31.

The tank opening and closing valve 32 is connected to the inlet of the storage tank 31 and the jetting section 50 and has an oil pipe section 321 for forming a flow passage 321a through which the drug D can flow, And a hermetic member 323 which is elastically supported on the tank opening and closing elastic member 322 and opens and closes the inlet of the storage tank 31. The tank opening / 2, when the piston 512, which will be described later, is linearly moved rearward by the operation of the trigger 20, the tank opening / closing elastic member 322 is connected to the cylinder 511 And is compressed by the hermetic member 323 to be compressed. Therefore, the hermetic member 323 is separated from the inlet of the storage tank 31 to open the inlet of the storage tank 31, whereby the drug D contained in the storage tank 31 is discharged to the outside of the oil passage 321 (511a) of the cylinder (511) through the opening (321a). 3, when the operation of the trigger 20 is released and the piston 512 is linearly moved forward, the pressure of the fluid pressurized to the piston 512 And is resiliently restored to its initial state. The hermetic member 323 spaced from the inlet of the storage tank 31 is again brought into close contact with the inlet of the storage tank 31 to close the inlet of the storage tank 31, The drug (D) is no longer spilled.

The driving unit 40 is installed inside the housing 10 and generates a rotational force when the trigger 20 is pressed by a user.

More specifically, the driving unit 40 is electrically connected to the trigger 20 to generate power when the trigger 20 is pressed by the user (ON state), and when the pressure is released (OFF state) And a circular gear portion 42a coupled to the power generating portion 41 and engaging with a linear gear portion 5123b of a piston 512, which will be described later, is formed on the outer circumferential surface of the power generating portion 41, When the trigger 20 is pressed by the user (when power is generated from the power generation unit 41), the rotation is clockwise and when the trigger 20 is released (when the power is generated from the power generation unit 41) And is transmitted to the jetting section 50 in the counterclockwise direction by the piston 512 linearly moved forward by the elastic restoring force of the main elastic member 513 to be described later Member (42). For example, a plurality of power transmitting members 42 coupled to the power generating portion 41 may be provided.

Next, the present drug injection device for skin 1 includes a spraying part 50 for spraying the drug D. [

1 to 4, the jetting unit 50 is disposed inside the housing 10 and is coupled to the driving unit 40. When the trigger 20 is pressed, a pressure difference is generated in the receiving space 511a The drug D is introduced into the accommodation space 511a disposed inside the housing 10 and the drug D introduced into the housing 10 when the trigger 20 is released from pressure, To the outside of the housing (10).

The jetting section 50 may include a pump 51 for discharging the drug using a pressure difference and a jetting tip 52 coupled to the tip of the pump 51. [

1 and 6, the pump 51 is coupled to the driving unit 40 to convert the rotational motion of the driving unit 40 into a rectilinear motion, and the inner space (the accommodation space 511a) communicating with the drug supply unit 30, So that the drug D can be introduced into the inner space or the drug D introduced into the inner space can be discharged to the outside.

The pump 51 may include a cylinder 511, a piston 512, and a main elastic member 513.

The cylinder 511 includes a body portion 5111 forming an accommodation space 511a on the inner side thereof and a body portion 5111 engaging with the tank opening and closing valve 32 of the drug supply portion 30 to communicate the drug supply portion 30 and the accommodation space 511a And a second tube portion 5113 that connects the first tube portion 5112 and the injection tip 52 to communicate the flow path 521a formed in the injection tip 52 with the accommodation space 511a.

The piston 512 is coupled to the driving unit 40 and linearly reciprocates along the inner circumferential surface of the body 5111 when the driving unit 40 rotates to generate a pressure difference in the accommodation space 511a, Can be introduced into the accommodation space 511a or the drug D introduced into the accommodation space 511a can be pressed toward the injection tip 52 side.

More specifically, the piston 512 includes a head portion 5121 disposed in the receiving space 511a and a seat portion 5121 extending along the longitudinal direction from the head portion 5121 and elastically supported by a main elastic member 513 5123). For example, the seating portion 5123 is formed with a seating groove 5123a in which a main elastic member 513 can be seated, and a circular gear portion 42a provided on the power transmitting member 42 of the driving portion 40, A linear gear portion 5123b which meshes with the gear portion 5123b can be formed. The piston 512 also extends in the radial direction from the end of the head portion 5121 and moves backward when the trigger 20 is pressed to urge the pressing portion 5122 to press the penetration portion 60 to be described later, And may further include a striking portion 5124 that extends radially from the outer circumferential surface of the portion 5123 and moves forward to press the end portion of the penetrating portion 60 when the trigger 20 is released from pressure. For example, the outer peripheral surface of the head portion 5121 may be formed to have a size corresponding to the inner peripheral surface of the cylinder 511 in which the accommodation space 511a is formed.

The main elastic member 513 is coupled to the elastic member supporting protrusion 13 provided on the housing 10 and elastically supports the piston 512 toward the injection tip 52 side.

1 and 3, the injection tip 52 is coupled to the tip of the pump 51 to close the flow path 521a formed on the inside when the trigger 20 is pressed, The medicines D pressurized by the pump 51 can be ejected outward by opening the flow path 521a.

The injection tip 52 may include a cap portion 521, a nozzle opening / closing valve 522, and a spray nozzle 523.

The cap portion 521 is coupled to the cylinder 511 of the pump 51 and forms an oil passage 521a on the inner side. On the inner circumferential surface where the injection nozzle 523 is disposed, a coupling projection 523b formed on the outer peripheral surface of the injection nozzle 523 May be formed on the outer circumferential surface of the coupling groove 521b.

The nozzle opening / closing valve 522 is disposed in the flow path 521a to close the flow path 521a when the trigger 20 is pressed and to open the flow path 521a when the trigger 20 is released.

2, when the piston 512 linearly moves rearward, the nozzle opening / closing valve 522 is brought into close contact with the inner surface of the cap portion 521 in which the flow path 521a is formed to close the flow path 521a, As shown in Fig. 3, when the piston 512 linearly moves forward, the flow path 521a is separated from the inner surface of the cap portion 521 to open the flow path 521a.

The spray nozzle 523 is disposed inside the front of the cap portion 521 so that the drug D flowing into the flow path 521a formed in the cap portion 521 can be ejected outward through the spray hole 523a. For example, an engagement protrusion 523b may be formed on an outer circumferential surface of the injection nozzle 523 to be seated in an engagement groove 521b formed on an inner circumferential surface of the cap portion 521. [

That is, when the trigger 20 is pressed and released in a state where the end of the housing 10 in which the opening 11 is formed is in contact with the skin S, the spraying section 50 moves the medicine D The drug D filled in the cylinder 511 is sprayed onto the surface of the skin S. [

Next, the present drug injection device for skin 1 comprises a penetration part 60 for penetrating the skin S into the drug D.

4 and 5, the infiltration part 60 is disposed around the jet part 50, and when the medicine is injected to the outside of the housing 10, the infiltration part 60 linearly moves toward the opening 11 side, A needle 611 protruding outward of the housing 10 is formed.

The penetration portion 60 may include a protrusion 61 disposed inside the housing 10 and moving linearly according to the operation of the trigger 20 and an auxiliary elastic member 62 for elastically supporting the protrusion 61 .

The projecting portion 61 is disposed inside the housing 10 so as to be linearly movable along the outer peripheral surface of the jetting portion 50 and is provided with a needle 611 protruding outwardly at a predetermined length on one surface thereof disposed on the opening portion 11 And may be provided in plural along the circumferential direction.

More specifically, the protruding portion 61 is formed in a tubular shape, and on one surface of the protruding portion 61, a support protrusion 612 and a support protrusion 612 protruding from the one surface of the protruding portion 61 in a predetermined length along the axial direction, And a plurality of needles 611 protruding outward by a predetermined length from the ends of the support protrusions 612 may be formed along the circumferential direction. Accordingly, a plurality of support protrusions 612 are formed at the end of the protrusion 61 to limit the protruding length of the needle 611, and to minimize the contact area with the skin S when contacting the skin S So that the contamination of the portion to which the drug (D) is applied can be minimized.

6, an auxiliary elastic member receiving groove 615 on which an auxiliary elastic member 62 to be described later is seated is provided on the inner side of the projection 61, and the auxiliary elastic member receiving groove 615 is provided on the jetting portion 50 when the trigger 20 is pressed. A support portion 613 which is pressed against the pressing portion 5122 of the piston 512 may be formed.

That is, the projecting portion 61 is disposed around the jetting portion 50 so as to be linearly movable along the outer peripheral surface of the jetting tip 52, and when the trigger 20 is pressed, the piston 512 And is then linearly moved backward together with the piston 512 by being pressed by the pressing portion 5122. [ When the trigger 20 is released, the protrusion 61 is linearly moved forward by the resilient restoring force of the main elastic member 513 so that the tip of the piston 512, which strikes the end of the protrusion 61, And is linearly moved forward by the elastic restoring force of the auxiliary elastic member 5124 and the auxiliary elastic member 62.

A protrusion 614 protruding in the radial direction may be formed on the outer side of the protrusion 61.

At this time, when the trigger 20 is pressed on the inner surface of the housing 10, the locking protrusion 614 is pushed by the locking protrusion 614 which is moved backward, And a locking part 70 for fixing the protruding part 61 to a predetermined position.

4, the auxiliary elastic member 62 is disposed inside the protruding portion 61 and is coupled to the elastic member supporting protrusion 13 provided on the housing 10 and protrudes toward the opening 11 side Can be elastically supported.

The needle 611 is pressed against the surface of the skin S by the trigger 20 when the end of the housing 10 on which the opening 11 is formed is in contact with the skin S, The drug D reaches the dermis layer S2 in a state in which the drug D protrudes outside the housing 10 and penetrates the skin layer S1 coated with the drug D, (D). Here, the needle 611 does not project further outward than the end of the housing 10 before the trigger 20 is operated, and only when the auxiliary elastic member 62 is elastically restored by the operation of the trigger 20 The auxiliary resilient member 62 may be further protruded outwardly than the end portion of the housing 10 due to the elastic repulsive force. Or the infiltration part 20 may puncture the skin layer S1 and the dermal layer S2 first and then spray the drug D to inject the drug into the skin.

Hereinafter, the process of injecting the drug (D) into the skin drug injector 1 will be described.

1, a plurality of needles 611 provided on the surface of the skin S to which the drug D is to be applied and the plurality of needles 611 provided on the infiltration portion 60 face each other, Is brought into contact with the surface of the skin (S).

Referring to FIG. 2, when the positioning of the site to be injected with the drug D is completed, the trigger 20 is pressed to move the piston 512 rearward through the driving unit 40, 31 are opened to fill the accommodation space 511a of the cylinder 511 with the drug D. [

3, when the filling of the medicine into the accommodation space 511a is completed, the trigger 20 is released from the pressure, the operation of the driving unit 40 is stopped, and the main elasticity The member 513 is resiliently restored to linearly move the piston 512 forward. As a result, the drug D charged in the accommodation space 511a is pressed against the piston 512 to move linearly. The nozzle opening and closing valve 522 which closes the flow path 521a of the injection tip 52 is pressed by the pressure inside the cylinder 511 by the pressure of the spray tip 522. As the medicine D is pressed by the piston 512 and moved forward, The drug D which is pressed by the piston 512 and moves forward as the flow path 521a is opened opens the flow path 521a of the spray nozzle 52 via the flow path 521a, And is sprayed onto the surface of the skin S through the hole 523a.

4 and 6, as the piston 512 is moved forward, the penetration portion 60 disposed outside the jetting portion 50 is pressed against the striking portion 5124 of the piston 512 Is pressed by the auxiliary elastic member 62 to be elastically restored and linearly moved toward the skin (S) side. At this time, the plurality of needles 611 provided in the penetration portion 60 are slightly protruded to the outside of the housing 10 after the drug D is applied to the surface of the skin S from the injection portion 50 with a slight difference And passes through the skin layer S1 of the skin S to which the drug D is applied. Accordingly, the plurality of needles 611 reaches the dermis layer S2 in a state in which the drug D is present, and penetrates the drug layer D into the dermis layer S2.

As described above, according to the present invention, the drug D is automatically transferred to the dermal layer S2 of the skin S only by the operation of depressing the trigger 20 or releasing the pressurization, excluding the conventional method depending on the manual operation of the operator. It is possible not only to perform accurate and rapid procedures but also to minimize the pain and perform the operation stably.

The needle 611 is vertically contacted with the skin S so as to minimize the damage of the skin S and the needle 611 is inserted into the dermal layer S2 through the skin layer S1, The drug D is applied to the surface of the skin S to be brought into contact with the dermis layer S2 so that the drug D can be directly penetrated into the dermis layer S2 through the needle 611, It is possible to maximize the penetration rate of the drug (D).

In addition, since the structure is simple, it can be carried and the manufacturing cost can be reduced, it can be easily and conveniently used at home at a low price.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all such changes and modifications as are known to the person skilled in the art.

1. Drug injector for skin
10. Housing
11. Openings 12. Handles
13. Elastic member supporting projection
20. Trigger
30. Drug Supply Unit
31. Storage tank
32. Tank opening / closing valve
321. Relay Section 321a. Euro
322. Tank opening / closing elastic member 323. Airtight member
40. Drive
41. Power generation unit
42. The power transmitting member
42a. Circular gear portion
50. Distributor
51. Pump
511. Cylinder 511a. Accommodation space
5111. Body part 5112. First tube part
5113. Second tube
512. Piston
5121. Head part 5122. Press part
5123. Seated part
5123a. Mounting groove 5123b. Linear gear portion
5124. Striking part
513. Main elastic member
52. Injection tip
521. Caps
521a. Euro 521b. Joining groove
522. Nozzle opening and closing valve
523. Injection nozzle
523a. Ejection hole 523b. Engaging projection
60. Penetration part
61. Protrusions
611. Needle 612. Supporting projection
613. Support 614. Locking
615. Auxiliary elastic member seat groove
62. An auxiliary elastic member
70. Locking unit
71. Jam home
S. skin
S1. Skin layer S2. Dermis layer
D. Drugs

Claims (11)

A housing having an opening through which liquid is injected and a handle capable of being held by a user,
A trigger which is pivotally mounted on the handle and is pressed by a user,
A liquid supply unit installed in the housing and supplying liquid to the inside of the housing,
A driving unit installed inside the housing and generating a rotational force when the trigger is pressed,
Wherein the liquid is introduced to the inside of the housing when the trigger is pressed and when the trigger is released, the liquid introduced into the housing is discharged to the inside of the housing, To the outside of the housing through an opening
And a penetration part (20) which is disposed around the injection part and linearly moves toward the opening part when the liquid is injected to the outside of the housing, and projects a needle provided at the end part to the outside of the housing
Lt; / RTI >
The needle
When the trigger is pressed and released and the liquid is sprayed onto the surface of the skin in a state where the end portion of the housing formed with the opening is in contact with the skin, the skin protrudes outside the housing to penetrate the skin layer and reach the dermal layer , A liquid infusion device for the skin which infiltrates the liquid into the dermal layer. The method of claim 1,
The liquid supply portion
A storage tank in which a liquid is stored and coupled to an upper portion of the housing, and
A tank opening / closing valve disposed between the jetting section and the storage tank for selectively opening and closing the inlet of the storage tank in accordance with a pressure difference generated from the jetting section;
And a liquid supply device for supplying liquid to the skin. 3. The method of claim 2,
The tank opening / closing valve
An oil pipe portion coupled to an inlet of the storage tank and the jet portion, respectively,
A tank opening and closing elastic member disposed inside the oil pipe portion, and
And a hermetic member elastically supported on the tank opening / closing elastic member to open and close the inlet of the storage tank
And a liquid supply device for supplying liquid to the skin. The method of claim 1,
The driving unit
A power generating unit connected to the trigger and generating a power when the trigger is pressed, and
A power transmitting member coupled to the power generating unit and rotated in a clockwise direction to transmit a rotational force to the jetting unit when the trigger is pressed,
And a liquid supply device for supplying liquid to the skin. The method of claim 1,
The injector
A pressure difference is generated in an inner space communicated with the liquid supply unit by converting the rotational motion of the driving unit into a linear motion to thereby introduce the liquid into the inner space or to pressurize the liquid introduced into the inner space, A pump for discharging the liquid to the outside, and
And a pump which is connected to a tip of the pump and closes a flow path formed inside when the trigger is pressed and opens the flow path when the trigger is released,
And a liquid supply device for supplying liquid to the skin. The method of claim 5,
The pump
And a second tube portion which is connected to the liquid supply portion and communicates with the liquid supply portion and the accommodation space, and a second tube portion which is coupled with the injection tip to communicate the flow path and the accommodation space The cylinder,
And a pressure difference is generated in the accommodation space by linearly reciprocating motion along the inner circumferential surface of the body part when the drive unit is rotated to introduce the liquid into the accommodation space, A piston that presses against the tip side, and
A main elastic member coupled to the elastic member supporting protrusion provided on the housing and elastically supporting the piston toward the injection tip side,
And a liquid supply device for supplying liquid to the skin. The method of claim 6,
The piston
A head portion disposed in the accommodating space,
A pressing portion that extends radially from an end of the head portion and is moved rearward when the trigger is pressed to press the penetrating portion,
A seating part extending along the longitudinal direction from the head part and having a seating groove in which the main elastic member can be seated is formed on the inside and a linear gear part engaged with the driving part is formed on the outer surface,
When the trigger is released in the radial direction from the outer circumferential surface of the seat portion, the trigger portion is moved forward to press the end portion of the penetration portion,
And a liquid supply device for supplying liquid to the skin. The method of claim 5,
The injection tip
A cap portion coupled to the pump and forming a flow path on the inside,
A nozzle open / close valve disposed in the flow path to close the flow path when the trigger is pressed, and to open the flow path when the trigger is released, and
And a spray nozzle provided in the front of the cap portion for spraying the liquid introduced into the flow path to the outside through the spray hole,
And a liquid supply device for supplying liquid to the skin. The method of claim 1,
The infiltration portion
A protrusion disposed on the inner side of the housing so as to be linearly movable along the outer circumferential surface of the jetting portion and provided with a plurality of needles projecting outwardly in a predetermined length on one surface thereof arranged in the opening portion along the circumferential direction;
An elastic member supporting protrusion disposed on the inside of the protrusion and being coupled to the elastic member supporting protrusion provided on the housing to elastically support the protrusion toward the opening side,
And a liquid supply device for supplying liquid to the skin. The method of claim 9,
A plurality of support protrusions are formed on one surface of the protrusions along a circumferential direction, the protrusions protruding from the one surface of the protrusions in a predetermined length along the axial direction,
The needle is provided at a portion where the support protrusion is formed and protrudes outward by a predetermined length from the end of the support protrusion,
An auxiliary elastic member receiving groove on which the auxiliary elastic member is seated is formed on the inner side of the protruding portion and a supporting portion which is pressed by the jetting portion when the trigger is pressed,
And a protrusion protruding in a radial direction is formed outside the protrusion. 11. The method of claim 10,
The locking member is locked to the inner surface of the housing by being pushed by the locking protrusion moved rearward and widened to the outside and hooked on the locking protrusion through the locking groove formed on the inner side to fix the protrusion to the preset position, A liquid injection device for the skin, which is additionally provided.

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