KR200492506Y1 - Drug Delivery Devices - Google Patents

Abstract

The present invention relates to a drug delivery device, and more particularly, to a drug delivery device that directly delivers a drug to a desired site with dozens of painless syringes.
A drug delivery device according to an embodiment of the present invention includes a body having a hollow cylindrical shape in the longitudinal direction, a slider that is slidably coupled with a spring on the inside of the body, and is coupled to the inside of the slider and filled with a drug. A needle unit coupled to the end of the slider and having a plurality of needles for injecting the drug from the syringe into the skin, and a case that is coupled to the outside of the body to apply the drug by pressing the slider and the syringe. Be composed;
A guide groove is formed on the inner surface of the cover, and a guide protrusion is formed on the outer surface of the main body, and the guide protrusion is coupled to the guide groove to slide the cover to the body by a predetermined length.

Description

Drug Delivery Devices {Drug Delivery Devices}

The present invention relates to a drug delivery device, and more particularly, to a drug delivery device that directly delivers a drug to a desired site with dozens of painless syringes.

The development of pain-free injection needles (painless syringes) is a global trend, and major domestic medical device manufacturers have developed injection needles that can inject drugs with a diameter of 0.18 mm, and have also started exporting to Europe.

Many researchers and technicians around the world are constantly working on researching painless needles that can inject drugs. Meanwhile, special technologies such as laser processing are used to manufacture 0.1 mm needles (needles that can collect blood or inject drugs). I am succeeding.

On the other hand, methods of treating the skin in various forms are being introduced to prevent skin aging.

Among them, the most representative form is the massage using beneficial substances containing nutrients in the skin.

That is, in recent years, various procedures have been performed for beauty or health assistance, and among them, a procedure in which many drugs are simultaneously injected into a large area is widely used.

In the procedure of injecting drugs over such a large area, when the procedure is performed with a conventional syringe, the injection needle penetrates the patient's skin every time the injection is performed, so the patient should feel pain each time, and the operator should have an appropriate depth. There is a disadvantage that a lot of time and effort are required for the procedure because it requires injection of an injection needle.

A syringe capable of injecting a large area at the same time by improving these disadvantages has been developed, for example, Korean Patent No. 1066883.

This prior patent relates to a hollow cylinder, an injection needle hub closely coupled to the rear end of the cylinder, and arranged at a certain distance from each other on the inside of the cylinder, and the front end protrudes more than the front end of the cylinder, and the rear end is injected through an injection needle hub. A plurality of injection needles each arranged to receive the drug, a first electrode housed inside the cylinder and in common contact with some of the plurality of injection needles, and a plurality of injections housed inside the cylinder It includes a second electrode that is in common contact with the remaining part of the needles.

Such a conventional injection device or means having a multi-needle has the advantage of being able to scan a large area at once.

On the other hand, MTS (Microneedle Therapy System), also called microneedle and tea needles, uses microneedling (fine needles) to create hundreds of thousands of micro holes without damaging the skin to induce drug absorption and stimulate the skin to help the skin regenerate naturally. That's the way.

MTS treatment is a procedure that effectively absorbs ampoules that are effective for acne, whitening, and skin regeneration to the dermal layer of the skin.It is effective in treating acne and removing acne scars, and a fine needle stimulates the dermis in the skin without destroying the stratum corneum. It is also a treatment method that helps natural healing without skin damage by utilizing 100% skin regeneration rate.

The prior art of such MTS procedure has a problem in that the absorption rate in the skin is remarkably low and the procedure is inconvenient in a manner in which a hole is made in the skin with dozens of needles while rolling, and then a drug is separately applied and soaked through a massage.

In order to solve this problem, a drug delivery device has been developed that enables direct delivery of drugs to a desired site with dozens of painless syringes.

The present invention was conceived to solve the above-described problems, and allows a fixed amount of drug to be uniformly injected at a predetermined position with a multi-needle of a painless syringe, but allows the body and the cover to be smoothly fastened and moved, and the needle unit An object thereof is to provide a drug delivery device capable of preventing the sliding of the enclosing slider.

형상인 가이드홈이 형성되어, 상기 가이드홈이 상기 본체 외측의 가이드돌기에 결합되어 소정길이 슬라이딩되는 커버를 포함하는 것을 특징으로 한다. A drug delivery device according to an embodiment of the present invention for achieving the above object includes: a main body having a hollow cylindrical shape in a longitudinal direction and having a guide protrusion formed on an outer surface thereof; Each of the inner sides of the main body is energized by a spring, consisting of a primary slider sliding along the inner side of the main body and a secondary slider sliding along the inner side of the primary slider, and the spring of the primary slider is the second A slider whose elasticity is weaker than that of the car slider and is pressed when the primary slider is first slid and the secondary slider is sequentially slid; A syringe coupled to the inner side of the slider and filled with a drug; A needle plate coupled to the end of the secondary slider and formed with a plurality of insertion holes to insert a plurality of injection needles into the skin for injecting drugs from the syringe into the insertion hole, and a support hole smaller than the insertion hole of the needle plate A needle unit including a back plate that is formed to support the needle plate so as not to fall back after the injection needle is inserted into the needle plate; And a hollow cylindrical shape in the longitudinal direction, extending from the middle of the left vertical groove on the inner surface to form a horizontal groove to the right, and a vertical groove extending downward from the end of the horizontal groove

It is characterized in that the guide groove is formed in the shape, the guide groove is coupled to the guide protrusion on the outside of the main body and includes a cover for sliding a predetermined length.

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In addition, it is characterized in that knurling (knurling) processing to prevent slipping on the outer surface of the slider at the portion where the needle unit is coupled.

In addition, it is characterized in that a mesh-shaped groove or a vertical groove is formed by the knurling process.

In addition, the outer surface of the slider at the portion to which the needle unit is coupled is formed in a polygonal shape to prevent slipping.

In addition, one side is open and the other side is a closed cylindrical shape, the inner circumferential surface having the same shape and size as the polygonal outer surface of the secondary slider is formed, and a cap extrapolated to the secondary slider is further provided.

According to the solution to the above-described problem, the multi-needle of the painless syringe enables uniform injection of a predetermined amount of drug at a predetermined position, but allows the main body and the cover to be smoothly fastened and moved, and the sliding of the slider surrounding the needle unit is prevented. Can be prevented.

1 is a front view showing an example of a drug delivery device for explaining the present invention.
Figure 2 is a side view of Figure 1;
3 and 4 are diagrams showing an operating state of the drug delivery device shown in FIG. 1.
5 is a perspective view of a drug delivery device according to an embodiment of the present invention.
6 is a perspective view of a drug delivery device according to another embodiment of the present invention.
7A and 7B are perspective and cross-sectional views of the covers shown in FIGS. 5 and 6.
8 is an exploded view of the cover and the main body shown in FIG. 7.
9 is a perspective view of a drug delivery device according to another embodiment of the present invention.
10 is a perspective view showing a cap coupled to the polygonal slider shown in FIG. 9.

Hereinafter, with reference to the accompanying drawings with respect to an embodiment of the present invention will be described the configuration and operation.

It should be noted that the same components among the drawings are denoted by the same reference numerals and reference numerals as much as possible even if they are indicated on different drawings.

In the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary.

First, a drug delivery device will be described to help understand the present invention.

FIG. 1 is a front view showing an example of a drug delivery device for explaining the present invention, FIG. 2 is a side view of FIG. 1, and FIGS. 3 and 4 are views showing an operating state of the drug delivery device shown in FIG. 1.

The drug delivery device includes a body 200, a slider 300, a syringe 400, and a needle unit 500.

In addition to this, it may be configured to further include a cover 600 and a roller 700.

Here, in order to aid the present design, the front where the needle unit 500 having the multi-needle is in contact with the skin and the opposite is expressed as the rear.

The body 210 of the main body 200 has, for example, a cylindrical shape, and a stepped inside is formed so that the large inside of the upper side is circular, and the small inside of the lower side is formed with a round arc on the short side of the rectangle, and is hollow in the longitudinal direction. Empty and communicate with each other.

A roller 700 is fixedly coupled to the main body 200 at an outer lower portion, and a slider 300 is slidably coupled to the inner side.

The roller 700 is coupled by pieces 740 to both sides of the body 200 having a square outside, and when the drug delivery device 100 moves along the skin, it contacts the skin at a constant angle around the shaft 720 Rotate with

Accordingly, when the drug delivery device 100 moves along the skin, the drug can be uniformly applied while moving by a certain angle.

The slider 300 slidably coupled to the inner side of the main body 200 includes a primary slider 320 sliding along the inner side of the main body 200 and two sliding along the inner side of the primary slider 320. It consists of a car slider 310.

The primary slider 320 is slid by a first spring 370 positioned between its outer surface and the inner surface of the main body 200 and slides in the longitudinal direction, and the secondary slider 310 It is urged by the second spring 380 positioned between the inner surface of the primary slider 320 and slides in the longitudinal direction.

At this time, the elastic force of the second spring 380 is greater than the elastic force of the first spring 370 so that the primary slider 320 is pressed, the first spring 370 is compressed first, and then the secondary slider 310 is pressed. The second spring 380 is compressed.

The primary slider 320 has a cylindrical shape, and a second check valve 360 and a needle unit 500 are coupled to an end thereof.

The second check valve 360 allows the drug to be supplied only from the bush 330 to the needle unit 500 by opening and closing.

In addition, a guide groove 316 is formed on the outer side of the secondary slider 310 in the vertical direction, and a stopper 218 protruding inward from the main body 200 is located in the guide groove 316, The sliding distance of the slider 310 is limited.

Accordingly, a certain drug can be applied at a time, and the general public can also perform a uniform treatment with the injection needle 510 on the skin at a certain depth.

The secondary slider 310 has a cylindrical shape and an outer surface corresponding to the inner surface shape of the primary slider 320.

Among the sliders 300, a syringe coupled to the secondary slider 310 is filled with a drug 800.

The cover 600, which is covered and coupled to the rear of the body 200, which is a position relative to the roller 700, is to be able to apply the drug 800 by pressing the slider 300 and the syringe 400, and the syringe Depending on the type of 400, the upper side of the cover is blocked or opened.

The needle unit 500 coupled to the end of the primary slider can be replaced by a needle plate 520 and a back plate 530 and a plurality of injection needles 510.

After the needle plate 520 has a plurality of insertion holes, a plurality of injection needles (multi-needle) 510 are inserted, and the back plate 530 has a support hole smaller than the insertion hole, and the injection needle is inserted. Support not to fall out.

Here, the injection needle 510 has a very small diameter and is difficult to fix.

For example, the injection needle 510 must be attached to the needle plate 520 with an adhesive (bond), but the number of injection needles is large and the outer diameter is fine, so it is impossible to adhere to the needle plate.

Therefore, in the present invention, it is preferable that the plurality of injection needles 510 and the needle plate 520, and the needle plate 520 and the back plate 530 are ultrasonically fused.

5 is a perspective view of a drug delivery device according to an embodiment of the present invention.

As shown in FIG. 5, the drug delivery device 10 is, for example, a cylindrical body 20 inserted into a cylindrical cover 60 so as to be slidable for a predetermined length, and an example in the body 20 For example, a cylindrical slider 30 is inserted so as to be able to slide a predetermined length.

In addition, an engaging groove having a predetermined depth is formed at the front end of the secondary slider 32 of the slider 30 so that the needle unit 50 is fitted and coupled to the engaging groove.

In the needle unit 50, a plurality of insertion holes are formed in the needle plate 52 so that a plurality of injection needles (multi-needle) 51 are inserted, and a support hole smaller than the insertion hole is formed in the back plate 53. After the injection needle 51 is inserted, it is supported so that it does not fall back.

Here, if the outer surface of the secondary slider 32 is circular and slippery, there is a problem that it is difficult to hold and rotate by hand because it is slippery when rotated for assembly and disassembly.

In this case, in an embodiment of the present invention, a mesh-shaped groove 32a is formed through knurling on the outer surface (exposed surface) of the secondary slider 32 to prevent slipping.

6 is a perspective view of a drug delivery device according to another embodiment of the present invention.

As shown in FIG. 6, the drug delivery device 10 is, for example, a cylindrical body 20 inserted into a cylindrical cover 60 so as to be slidable for a predetermined length, and an example in the body 20 For example, a cylindrical slider 30 is inserted so as to be able to slide a predetermined length.

In addition, an engaging groove having a predetermined depth is formed at the front end of the secondary slider 32 of the slider 30 so that the needle unit 50 is fitted and coupled to the engaging groove.

In the needle unit 50, a plurality of insertion holes are formed in the needle plate 52 so that a plurality of injection needles (multi-needle) 51 are inserted, and a support hole smaller than the insertion hole is formed in the back plate 53. After the injection needle 51 is inserted, it is supported so that it does not fall back.

Here, if the outer surface of the secondary slider 32 is circular and slippery, there is a problem that it is difficult to hold and rotate by hand because it is slippery when rotated for assembly and disassembly.

In this case, in another embodiment of the present invention, a groove 32b is formed vertically through knurling on the outer surface (exposed surface) of the secondary slider 32 to prevent slipping.

7A and 7B are perspective and cross-sectional views of the cover shown in FIGS. 5 and 6, and FIG. 8 is an exploded view of the cover and the body shown in FIG. 7.

As shown in the figure, for example, a guide groove 62 is formed on the inner surface of the cylindrical cover 60 in which the through hole 61 is formed, and a guide protrusion 21 is formed on the outer surface of the cylindrical body 20 It is formed and the guide protrusion 21 is coupled to the guide groove 62 so that the cover 60 slides to the body 20 by a predetermined length.

형상을 한다.At this time, the guide groove 62 formed in the cover 60 extends from the middle of the left vertical groove to form a horizontal groove to the right, and the vertical groove extends from the end of the horizontal groove to the bottom.

Make a shape.

Here, the guide protrusion 21 of the main body 20 is inserted through the right vertical groove and rises upward, and then moves to the left through the horizontal groove so that the cover 60 and the main body 20 are combined. It slides through the groove.

Here, the vertical length of the left vertical groove is the slide length.

In this way, the main body 20 and the cover 60 are smoothly coupled by the guide protrusion 21 and the guide groove 62 to move up and down (slide).

Reference numeral 31, which is not described, is a primary slider coupled to the upper portion of the secondary slider 32, and 40 is a syringe inserted into the primary slider 31.

9 is a perspective view of a drug delivery device according to another embodiment of the present invention.

As shown in FIG. 9, the drug delivery device 10 is, for example, a cylindrical body 20 inserted into a cylindrical cover 60 so as to be slidable for a predetermined length, and an example in the body 20 For example, a cylindrical slider 30 is inserted so as to be able to slide a predetermined length.

In addition, an engaging groove having a predetermined depth is formed at the front end of the secondary slider 32 of the slider 30 so that the needle unit 50 is fitted and coupled to the engaging groove.

In the needle unit 50, a plurality of insertion holes are formed in the needle plate 52 so that a plurality of injection needles (multi-needle) 51 are inserted, and a support hole smaller than the insertion hole is formed in the back plate 53. After the injection needle 51 is inserted, it is supported so that it does not fall back.

Here, if the outer surface of the secondary slider 32 is circular and slippery, there is a problem that it is difficult to hold and rotate by hand because it is slippery when rotated for assembly and disassembly.

At this time, in another embodiment of the present invention, the outer surface (exposed surface) of the secondary slider 32 is formed as a polygon 32c to prevent slipping.

10 is a perspective view showing a cap coupled to the polygonal slider shown in FIG. 9.

As shown in FIG. 10, the cap 90 has a cylindrical shape in which one side is open and the other side is closed, and an inner circumferential surface having the same shape and size as the outer surface of the polygonal 32c of the secondary slider 30 is formed, so that the secondary slider It is extrapolated to (30).

This extrapolated cap 90 has a longer front and rear length than the secondary slider 30 and has an outer diameter so that it is easy to hold and rotate by hand, and the needle unit 50 is not exposed to the outside by this cap 90 It is possible to protect the needle unit 50 including the injection needle 51.

In the above, the technical idea of the present invention has been described with the accompanying drawings, but this is illustrative of a preferred embodiment of the present invention and does not limit the present invention.

In addition, it is a clear fact that anyone with ordinary knowledge in the technical field can make various modifications and imitations within the scope of the technical idea of the present invention.

10: drug delivery device 20: main body
30: slider 40: syringe
50: needle unit 60: cover

Claims (6)

A body having a hollow cylindrical shape in the longitudinal direction and having a guide protrusion formed on an outer surface thereof;
Each of the inner sides of the main body is energized by a spring, consisting of a primary slider sliding along the inner side of the main body and a secondary slider sliding along the inner side of the primary slider, and the spring of the primary slider is the second A slider whose elastic force is weaker than that of the car slider, so that when it is pressed, the primary slider slides first and the secondary slider slides sequentially;
A syringe coupled to the inner side of the slider and filled with a drug;
A needle plate coupled to the end of the secondary slider and formed with a plurality of insertion holes to insert a plurality of injection needles for injecting drugs from the syringe into the skin, and a support hole smaller than the insertion hole of the needle plate A needle unit including a back plate that is formed to support the needle plate so as not to fall back after the injection needle is inserted into the needle plate; And
It has a hollow cylindrical shape in the longitudinal direction and extends from the middle of the left vertical groove on the inner surface to form a horizontal groove to the right, and the vertical groove extends from the end of the horizontal groove to the bottom.

The drug delivery device, characterized in that the guide groove is formed in the shape, and the guide groove is coupled to the guide protrusion on the outside of the main body to slide a predetermined length of the cover. delete The method of claim 1,
Drug delivery device, characterized in that the knurling (knurling) processing to prevent slipping on the outer surface of the slider at the portion to which the needle unit is coupled. The method of claim 3,
A drug delivery device, characterized in that a mesh-shaped groove or a vertical groove is formed by the knurling process. The method of claim 1,
Drug delivery device, characterized in that the outer surface of the slider at the portion to which the needle unit is coupled is formed in a polygonal shape to prevent slipping. The method of claim 5,
Drug delivery device, characterized in that further provided with a cap that is extrapolated to the secondary slider by forming an inner peripheral surface having the same shape and size as the polygonal outer surface of the secondary slider in a cylindrical shape that is open on one side and closed on the other side.

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