KR101539664B1 - Drug injection device for skin treatment - Google Patents

Abstract

In order to prevent leakage of the injected drug to the outside of the body after injecting the drug while the needles are later inserted after the skin is initially adsorbed during the procedure without the needle protruding normally, And support means for resiliently supporting the one side of the assembly in contact with the skin so as not to protrude; And a clutch member disposed between the driving source and the rotating body so as to move backward in a direction opposite to the direction in which the piston is pressed to prevent the injected drug from leaking out of the body.
Therefore, it can be safely used, minimally painful, so that it can be performed safely, and it is possible to minimize the expensive drug loss to be injected.

Description

[0001] The present invention relates to a drug injection device for skin treatment,

More particularly, the present invention relates to a device for injecting drugs for skin treatment, and more particularly, to a device for injecting drugs for skin treatment, more specifically, The present invention relates to a drug injection device for skin treatment, which can prevent a drug injected by a repulsive force from leaking out of the body.

In general, skin is the largest protective body of the human body covering the entire body. It is known that the skin around the eyes is the thinnest and the soles are the thickest in the human body.

Such skin treatment is a treatment method for skin beauty and hair health such as wrinkles, acne removal, exfoliation, etc., and it is a method for maximizing the drug efficacy by making holes in the skin and then applying medicines or cosmetics onto the skin, . In addition, there is a method of stimulating the skin with a needle to induce collagen formation by the reflection action of the human body, and the main treatment site is the face and the scalp.

For example, by making a plurality of fine holes in the skin of a human body, it is possible to make new skin by using the self-sustaining force of the damaged skin tissue in the process of making fine holes, applying a therapeutic drug to a site where fine holes are formed, Allows penetration through the hole quickly into the skin. In addition, it generates deep heat by the high frequency in the needle, thereby increasing the temperature of the tissue, thereby improving the function of the cell and increasing the blood flow. Thus, the metabolism is enhanced, the deep pain is relieved, And various cosmetic effects such as anti-aging of skin, freckles of dandruff, burning of body fat, treatment of hair loss, and prevention.

On the other hand, the multi-hole procedure, which is used to form a large number of fine holes in the skin and inject drugs into the body, is one of the most widely used surgical procedures because of its excellent effect.

In addition, since the drugs used in the multi-hole procedure usually have to be injected precisely several times in small quantities for a special purpose, they can have a uniform and accurate effect throughout the skin. Thus, in the conventional ineffective method of manual operation, A drug injection device is used.

As described in Korean Patent No. 10-1203887 (hereinafter referred to as " Prior Patent Document 1 "), a prior art of a drug injection device for injecting drugs into the body after making a plurality of fine holes in the skin is disclosed in Korean Patent Laid- There has been proposed a technique in which a drug filled in a cylinder is injected into the body through a needle through a needle as the moving piece and the transfer piece which are reciprocated on the screw rotated by the motor press the piston of the syringe.

Also, the needle module used in the drug injection device is also disclosed in Korean Patent Laid-Open Publication No. 10-2012-0044612 (hereinafter referred to as "Prior Patent Document 2"), And a suction assembly for sucking the skin by the suction force is attached to the front of the main body which is in contact with the skin while adjusting the length of the protrusion of the needle toward the front of the main body by the reciprocating assembly formed with the drug injection path, A technology such as a module has been proposed.

Korean Patent No. 10-1203887 Korean Patent Publication No. 10-2012-0044612

However, in the case of the prior patent document 1, there is a disadvantage in that a part of the injected drug is leaked through the hole formed in the skin by the needle in the process of injecting the drug into the skin and extracting the needle from the skin, though it has high efficiency in drug injection .

In addition, there is a problem that a drug is leaked through the needles, that is, a drug is liable to be lost due to a drawback that it flows down through the needle.

Particularly, since the viscosity of the drug to be injected into the skin varies according to the purpose or use of the drug, leakage occurs when the viscosity is diluted.

In addition, since the price of the drug is very expensive depending on the purpose or use thereof, measures for minimizing the loss due to leakage as described above are urgently required in the process of injecting the drug using the drug injection device.

The prior art Patent Document 2 also has a disadvantage in that it always causes a danger to the practitioner or the patient as the needle keeps protruding in front of the suction assembly at all times.

Particularly, as the needles are first inserted into the skin of the recipient during insertion, the recipient may feel the pain first when the needle is inserted.

The main object of the present invention for solving the above-mentioned problems of the related art is to provide a method and an apparatus for injecting a skin after a skin is firstly sucked at the time of surgery without injecting a needle at a normal time, And a drug injection device for skin treatment that can prevent a drug injected by repulsive force from leaking out of the body.

Another object of the present invention is to prevent the needle module from rotating while being guided smoothly during operation.

It is another object of the present invention to have high compatibility regardless of the size of the syringe.

According to an aspect of the present invention, there is provided a syringe including a syringe filled with a drug, a needle module coupled to a cylinder of the syringe and inserted into the skin, into which a drug is injected, And a drug injector for injecting a drug in a cylinder by pressing a piston of the syringe by a pressing member provided on a rotating body connected to the needle, wherein the needle module is provided with a suction assembly and a needle And support means for elastically supporting the needle between the assemblies so that the needle does not protrude from one side of the suction assembly, which is in contact with the skin, before the needle is inserted into the skin and the procedure is performed; The pressure of the pressure member is released between the driving source and the rotating body in a state where the injection of the drug into the body is completed by the pressing member, and the piston is moved backward by the repulsive force generated by the pressing in the opposite direction And a clutch member provided to prevent the injected drug from leaking out of the body.

The support means includes a fluid space formed in the body between the tip of the needle assembly and the end of the suction assembly, an elastic member elastically supporting the suction assembly by an elastic force between the needle assembly and the suction assembly, And a sliding surface portion formed at a portion coupled with the tip.

The elastic member is composed of an elastic body interposed between a front of the needle assembly and a fixture formed on the suction assembly.

The needle assembly and the suction assembly further include guide supports for preventing sliding of the needle and preventing rotation of the needle while preventing the needle from being deformed.

The guide support portion includes a guide cap having at least one guide hole formed in the needle assembly and coupled to the needle assembly, and a protrusion guide formed in the stone assembly corresponding to the guide hole and slidable in the guide hole.

The clutch member connects or disconnects the rotational force of the driving source with the rotating body.

The clutch member includes a first clutch portion provided on a driving source shaft, and a second clutch portion engaged with the first clutch portion and mounted on the rotating body to connect and block rotational force.

The first clutch portion is formed of a clutch main body mounted on a drive source shaft, and a plurality of engaging projections formed on one surface of the clutch main body to be engaged with the second clutch portion.

The second clutch portion includes a clutch block mounted on the rotating body, and a plurality of detachable jaws formed on one surface of the clutch block, the detachable jaw being formed to be engaged or disengaged from the engaging jaw so as to be connected or disconnected.

The upper portion of the drug injector on which the syringe is mounted further includes a clamp that can be replaced according to the size of the syringe while preventing the syringe from flowing.

In the present invention, the needle is not protruded at the time of normal operation, and after the skin is first inserted, the needle is inserted later, and after the drug is injected, the injected drug is prevented from leaking out of the body due to the repulsive force generated by the pressurization, It is possible to minimize the amount of expensive drug loss to be injected together with the effect that it can be performed safely by inducing minimal pain as well as being safely used.

Further, since the needle module is prevented from being rotated while being smoothly guided during the operation, high safety according to the procedure can be ensured.

In addition, by having a high compatibility regardless of the size of the syringe, it is possible to easily mount and use the desired feeling according to the required procedure.

1 is a partially exploded perspective view for explaining the present invention,
Figure 2 is a side view of the combined state according to Figure 1,
3 is an exploded perspective view of the needle module of the present invention,
Figure 4 is a cross-sectional view of the combined state according to Figure 3,
5 is an enlarged cross-sectional view for explaining the use state of the needle module,
6 is a side view and a partial cross-sectional view of a state in which a drug is injected by the clutch member of the present invention,
FIG. 7 is a side view and a partial cross-sectional view of the injected drug according to FIG. 6 in a non-leaking state. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The present invention is not limited to or limited by the embodiments.

Figure 1 is a partially exploded perspective view for explaining the present invention, Figure 2 is a side view of the combined state according to Figure 1, Figure 3 is an exploded perspective view of the inventive needle module, Figure 4 is a combined state And Fig. 5 is an enlarged cross-sectional view for explaining the use state of the needle module.

A syringe 110 filled with a conventional drug used in a conventional multi-hole procedure for injecting a drug or the like into the body after a large number of fine holes are made in the skin as shown in the drawing, a cylinder 114 of the syringe 110, And a needle module 120 into which the drug is injected after being inserted into the skin. Such as a normal or vertical motor in which the operation is turned on or off by a switch or a button provided on the body frame 132 in a state where the injector 110 and the needle module 120 are stationary, The piston 112 of the syringe 110 is pressed against the cylinder 114 by a pressing member 136 provided on the rotating body 135 such as a conventional conveying screw or a conveying gear rotated in conjunction with the rotating shaft 134, And a drug injector (130) for injecting a drug filled in the drug delivery device (100). The pressing member 136 includes a conventional sliding block 136a in which a lower portion is mounted and slid by rotation of the rotating body 135 and a sliding block 136b on the upper side of the piston 112 of the syringe 110 And a support holder 136b for supporting the support member 136b. The sliding block is provided with a conventional bearing block coupled with the rotating body.

The needle module 120 includes a hollow main body 10, a reciprocating assembly 20 in which the drug injection path 22 is reciprocated forward and backward by rotation of the main body 10, A needle assembly 30 to which the needle 32 is inserted and fixed while the needle 32 is inserted and directly inserted into the skin, and a needle assembly 32 rotatably mounted in front of the body 10, And a suction port 42 formed on a side surface of the suction port 42 so as to be in contact with the skin by a suction force. The suction port 42 is provided at a predetermined depth Respectively.

In the present invention, the needle is not protruded at the time of normal operation, and after the skin is first inserted, the needle is inserted later, and after the drug is injected, the injected drug is prevented from leaking out of the body due to the repulsive force generated by the pressurization, .

The needle module 120 according to the present invention may be configured such that the needle 32 is inserted between the suction assembly 40 in the body 10 and the needle assembly 30 before the needle 32 is inserted into the skin, 40), so that the practitioner or the person to be treated can secure a high level of safety.

The support means 50 includes a flow space portion 52 formed in the body 10 between the tip of the needle assembly 30 and the end of the suction assembly 40 and the needle assembly 30 and suction assembly 40 An elastic member 54 for elastically supporting the suction assembly 30 by an elastic force between the suction chamber 40 and the main body 10 of the suction assembly 40; And a sliding surface portion 56 that is slidable.

The elastic member 54 is preferably composed of an elastic body 54b interposed between the front of the needle assembly 30 and a fixture 54a formed in the suction assembly 40. [ At this time, it is preferable that the elastic body 54b supported on the front side of the needle assembly 30 is formed to be supported on the guide cap of the guide supporting part, which will be described later.

In the needle assembly 30 and the suction assembly 40, the needles 32 are protruded to the outside of the suction assembly 40, and the needle 32 is prevented from being deformed, It is preferable that the guide support 60 is further formed to prevent the needle assembly from rotating.

The guide supporter 60 includes a guide cap 64 having at least one guide hole 62 formed in the needle assembly 30 and coupled with the needle 32 so as to penetrate the guide hole 62, And a protrusion guide 66 formed in the stone assembly 40 at the corresponding position and slidably inserted into the guide hole 62.

Thereby preventing the needle from being deformed in the process of inserting and withdrawing the needle, sliding the needle assembly stably, and also preventing the needle assembly from rotating due to the procedure.

The use of the needle module 120 as described above is accomplished by first rotating the reciprocating assembly 20 provided at the rear of the main body 10 and moving the needle assembly 30 forward and backward while being coupled to the reciprocating assembly 20, So that the needle 32 mounted on the suction assembly 40 can be protruded from the surface of the suction assembly 40 in contact with the skin.

At this time, however, the needle 32 does not protrude from one surface of the suction assembly 40, which is in contact with the skin, because the suction unit 50 is provided between the suction assembly 40 and the needle assembly 30, (40) and does not protrude.

In other words, a flow space 52 formed in the body 10 between the needle assembly 30, which is the support means 50, and the suction assembly 40, and between the needle assembly 30 and the stone assembly 40 The end of the sliding surface portion 56 of the suction assembly 40 is also elastically supported by the main body 10 from the front side end of the main body 10 by the resilient member 54 provided on the main body 10, 10, the needle 32 is embedded in the suction assembly 40 without being protruded from one surface of the suction assembly 40.

Accordingly, before the normal operation is performed, the needles are not protruded from the one side of the suction assembly, thereby providing a condition for the practitioner or the physician to safely use.

When the depth of insertion of the needle 32 into the skin is completed, the suction assembly 40 is brought into contact with the skin to be treated, and the suction force is applied to the suction surface of the suction assembly 40, So that the elasticity is maintained. The operator then presses the reciprocating assembly 20 by the main body frame 132 of the drug injector 130 to cause the suction assembly 40 to ride on the flow space portion 52 in the main body 10 The elastic member 54 is retracted and the needle 32 embedded in the suction assembly 40 is inserted and inserted into the operator's skin so that the drug in the cylinder 114 of the syringe 110 is returned to the reciprocating assembly 20 into the skin through the drug injection path 22 and the needle 32,

At this time, the operator does not insert the needle 32 into the skin first, but inserts the needle 32 into the skin after the needle 32 is inserted after the suction pressure of the suction assembly 40 is sensed first. The pain can be minimized.

When the injection of the drug is completed, the pressing force is released from the reciprocating assembly, and the needle is installed inside the suction assembly due to the restoring force of the elastic member, which is provided between the suction assembly and the needle assembly, I will not.

Accordingly, since the needle module of the present invention does not protrude to the outside during normal operation before the operation, the operator or the physician can have high safety, and at the same time, the needle is not inserted into the skin, After the needle is first felt and the needle is inserted later, there is a condition that minimizes the pain of insertion of the needle.

In addition, since the needle protrudes from the one side of the suction assembly and is guided in the above-described manner, the guide support portion provided between the needle assembly and the suction assembly prevents deformation of the needle such as warpage and stable reciprocation. As well as a condition that prevents the needle assembly from being rotated.

6 to 7, the pressure member 136 is provided between the driving source 134 and the rotating body 135 to prevent the injected drug from leaking out of the body of the piston of the syringe 110, (112) is pressed to release the pressing force of the pressing member (136) in a state in which the drug in the cylinder (114) has been injected into the body, the piston (112) is pressed by the repulsive force generated by the pressing And a clutch member (70) provided to prevent the injected drug from leaking out of the body while reversing in the opposite direction.

In other words, as the piston 112 of the syringe 110 is pressed by the urging of the urging member 136 which is moved on the rotating body 135 rotated by the driving source 134 of the drug injector 130, 114 are injected into the body through the needles 32 of the needle module 120. When the injection is completed, the rotational force of the driving source 134 and the rotating body 135 is transmitted by the clutch member 70 The pressing force of the pressing member 136 is released.

As a result, the repulsive force generated by the pressing into the cylinder 114 causes the piston 112 to move backward in the opposite direction of being pressed again, so that a small amount of drug injected into the body through the needle 32 is returned to the needle 32 again. The needle 32 is prevented from flowing out of the body even in the process of pulling the needle 32 out of the skin. In addition, It is possible to prevent the water from flowing down.

The clutch member 70 connects or disconnects the rotating force of the driving source 134 with the rotating body 135. The clutch member is preferably formed at a position where the shaft of the driving source and the rotating body are connected.

The clutch member 70 includes a first clutch portion 72 provided on the shaft of the driving source 134 to transmit the rotational force of the driving source and a second clutch portion 72 coupled to the first clutch portion 72, And a second clutch portion (76) mounted on the second clutch portion (135).

The first clutch portion 72 includes a clutch main body 73 mounted on the shaft of the drive source 134 by a normal screw coupling method or a screw or bolt fastening method, And a plurality of engaging jaws 74 formed to engage with the engaging projections 76. At this time, the engaging jaws are formed at positions facing each other or shifted from each other.

The second clutch portion 76 includes a clutch block 77 mounted on the rotating body 135 by a normal screwing method or a screw or bolt fastening method or the like, And a plurality of detachable jaws 78 which are formed so as to be engaged or disengaged from each other. At this time, the attaching / detaching jaws are formed so as to correspond to the engaging jaws facing each other or at positions displaced from each other. The engaging jaw and the attaching / detaching jaw are preferably formed in a polygonal shape such as a triangle or a quadrangle which can be easily engaged.

That is, the engaging jaw 74 and the attaching / detaching jaw 78 of the first and second clutch units 72 and 76, which press the piston 112 of the syringe 110 by the urging member 136, 7, the engaging jaw 74 and the attaching / detaching jaw 78 (see FIG. 7) are in a state in which they are in contact with each other in the rotating direction as shown in FIG. ) Are kept apart from each other. At this time, the driving source is stopped and the engaging jaw and the detachable jaw are spaced apart from each other in the direction opposite to the rotating direction by a usual control method.

6, when the drug filled in the cylinder 114 of the syringe 110 is injected using the drug injector 130, the clutch member 70 is rotated by the driving source 134 The pressing member 136 on the entire body 135 is injected into the body through the needle 32 of the needle module 120 inserted into the skin as the piston 112 of the syringe 110 is pressed. At this time, the engaging protrusions 74 of the first and second clutch parts 72 and 76, which are the clutch members 70, and the attaching / detaching jaws 78 are engaged with each other to smoothly transmit rotational force.

7, the rotational force of the driving source 134 and the rotating body 135 is blocked by the clutch member 70 so that the drug injected into the body leaks out of the body .

In other words, as the driving source 134 is stopped, the rotating force is lost and the rotating force of the rotating body 135 is also lost. At this time, the driving source 134 is rotated in a state of being stopped by a normal control method in a predetermined turning radius enough to separate the engagement of the first and second clutch portions 72, 76 of the clutch member 70 .

The engagement of the second clutch portion 76 of the rotating body 135 engaged with the first clutch portion 72 on the shaft of the drive source 134 is released and the syringe 110, The piston 112 is moved backward in the opposite direction in which the piston 112 was pressed. In addition, the pressing member 136 supporting the piston 112 also rotates reversely with the reverse rotation, and the first clutch portion and the second clutch portion of the clutch member are idly rotated at this time.

As the piston 112 is moved backward by the repulsive force, some small amount of drug injected into the body through the needle 32 and the drug in the needle 32 are introduced into the cylinder 114 again due to the suction force generated by the repulsive force .

Therefore, even if the needle 32 is drawn out from the skin, it is possible to prevent the drug injected into the body from leaking out of the body again, and also the condition that the drug does not flow through the needle 32.

In addition, since the drug filled in the cylinder of the syringe is different in viscosity depending on purposes or applications, the repulsive force generated by the piston is different depending on the viscosity of the drug filled in the cylinder. However, It is possible to apply any drug irrespective of the fact that it is made by the repulsive force of the drug itself filled in the cylinder instead of using the piston backward.

Therefore, there is a condition that minimizes drug loss by preventing a small amount of drug from leaking in the process of injecting the drug filled in the syringe into the body using the drug injector and drawing the needle of the drug injector out of the skin.

In addition, it is not a separate power source to prevent the drug from leaking, but also has a condition capable of easily preventing the drug from being leaked regardless of the kind thereof, by the repulsive force of the syringe itself.

The upper part of the drug injector 130 in which the syringe 110 is mounted further includes a clamp 80 which can be changed according to the size of the syringe 110 while preventing fluidity of the syringe 110. The clamp is generally U-shaped in alphabetical letters and is detachably provided at the upper portion of the drug injector by a conventional interference fit method.

Accordingly, the stability of the syringe in the lateral direction can be ensured in the state where the syringe is stationary, and the syringe may be replaced with a suitable clamp according to the size of the syringe according to the drug to be injected.

10: main body 20: reciprocating member
22: injection line 30: needle assembly
32: Needle 40: Suction assembly
42: Suction port 50: Support means
52: inflow space part 54: elastic member
54a: fixture 54b: elastic body
56: sliding surface portion 60: guide supporting portion
62: guide groove 64: guide cap
66: protrusion guide 70: clutch member
72: first clutch portion 73:
74: engaging jaw 76: second clutch portion
77: clutch block 78: detachable chin
80: clamp 100: drug injection device
110: syringe 112: piston
114: cylinder 120: needle assembly
130: drug injector 132: body frame
134: driving source 136: pressing member
136a: Slide block 136b: Support hole

Claims (10)

A needle module coupled to the cylinder of the syringe and inserted into the skin and injected with a drug, and a pressing member provided on the rotating body connected to the driving source in a state in which the syringe and the needle module are mounted, And a drug injector for injecting the drug in the cylinder by pressurizing the piston of the injector by means of the injector,
The needle module including support means for elastically supporting the needle between the suction assembly and the needle assembly in the body so that the needle does not protrude from one surface of the suction assembly before the needle is inserted into the skin and is inserted into the skin;
The pressure of the pressure member is released between the driving source and the rotating body in a state where the injection of the drug into the body is completed by the pressing member, and the piston is moved backward by the repulsive force generated by the pressing in the opposite direction And a clutch member provided to prevent the injected drug from leaking out of the body,
Wherein the clutch member connects or disconnects the rotational force of the driving source with the rotating body,
Wherein the clutch member includes a first clutch portion provided on a driving source shaft, and a second clutch portion mounted on the rotating body to connect and block rotational force engaged with the first clutch portion,
Wherein the first clutch portion comprises a clutch main body mounted on a drive source shaft, a plurality of engagement protrusions formed on one surface of the clutch main body to be engaged with the second clutch portion,
Wherein the second clutch portion is formed of a clutch block mounted on the rotating body, and a plurality of detachable jaws formed on one surface of the clutch block, the detachable jaw being formed to be engaged or disengaged from the engaging jaw so as to be connected or disconnected. The method according to claim 1,
The support means includes a fluid space formed in the body between the tip of the needle assembly and the end of the suction assembly, an elastic member elastically supporting the suction assembly by an elastic force between the needle assembly and the suction assembly, And a sliding surface portion formed at a portion coupled to the distal end. 3. The method of claim 2,
Wherein the elastic member comprises an elastic body interposed between a front of the needle assembly and a fixture formed on the suction assembly. The method of claim 3,
Wherein the needle assembly and the suction assembly further include a guide supporter for preventing sliding of the needle while preventing rotation of the needle. 5. The method of claim 4,
Wherein the guide support portion includes a guide cap having at least one guide hole formed in the needle assembly and coupled to the needle assembly, and a protrusion guide formed in the stone assembly corresponding to the guide hole and slidable in the guide hole. . delete delete delete delete 6. The method according to any one of claims 1 to 5,
Wherein the upper portion of the drug injector in which the syringe is fixed further comprises a clamp which can be changed according to the size of the syringe while preventing fluidity of the syringe.

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