KR101936423B1 - Drug injection device - Google Patents

Abstract

The present invention relates to a drug injection device which is capable of continuous injection. The present invention comprises: a top part cap (110) which guides sliding operation upwardly and downwardly with a bottom part cap which is inserted in a bottom end; the bottom part cap (120) which is slid upwardly and downwardly while being inserted inside of the top part cap; a pumping unit top end combining unit (170) and a pumping unit bottom end combining unit (180) which are provided at the inside of the top part cap (110) and the bottom part cap (120) and closely tighten a top end and a bottom end of an expansion injection pumping unit (150); an out shaft (130) which has a combining hole (132) formed to be combined to the top end of a pumping unit bottom combining unit (170) and also has one or more holes (131) formed to make drug introduced and discharged; an inner shaft (140) which has a bottom end inserted inside a top end of an out shaft (130) and also has a top end combined to a pumping unit top end combining unit (170), and has a combining hole (141) formed at the top end; an expansion injection pumping unit (150) which is inserted between a pumping unit top end combining unit (170) and a pumping unit bottom end combining unit (180) and swells to expand when a drug is injected. The present invention can continuously inject a drug with a fixed amount and a constant speed of injection, and thus drastically improves quality of credibility of the drug injection device. As a result, various needs of consumers as users are met and good impression can be presented.

Description

[0001] Drug injection device [0002]

More particularly, the present invention relates to a drug infusion device capable of continuously injecting a drug at a predetermined rate and at a constant rate, thereby greatly improving the quality and reliability of the drug infusion device. So that the user can satisfy the various needs of the user, so that a good image can be provided.

As known, balloon infusion pump is a disposable drug infusion device that is used to continuously inject drugs with important injection volume and injection rate at a constant rate such as analgesic or anticancer drug after surgery. And is generally used.

The balloon infuser is safe and hygienic from external factors, is easy to carry, does not require a separate power source, and does not have a designation in everyday life, so that patients requiring continuous drug injection can be treated without hospitalization The research and demand is increasing in the following.

In the case of the balloon infuser, the drug is stored in the expanding member, the expanding member is reduced, and the drug is discharged to the outside in accordance with the elasticity change. However, the elasticity changes according to the size of the expanding member, and when the drug is fully stored, the drug injection rate is fast, but when the drug is only stored in a small amount, the drug injection rate is slow.

However, the above-described balloon infuser has the following problems.

That is, the conventional drug injection port has a pump structure of a spring type, which is complicated in structure and causes a rise in manufacturing cost and a decrease in productivity due to a large number of parts.

In addition, the above-described conventional drug infusion orifice has a large problem of tearing or breaking in the process of fastening the drug reservoir to both sides of the drug reservoir.

In addition, the above-mentioned prior art has a problem that it is difficult not only to tightly fasten the drug injection port but also to disassemble and assemble it.

In order to solve the above-described problems, the following prior art documents have been developed in the past, but a large problem that still can not solve the problems of the conventional art has arisen.

Korean Registered Patent No. 1743588 (May 27, 2017) was registered. Korean Registered Patent No. 1860883 (Aug. Korean Patent Registration No. 1089348 (November 28, 2011) has been registered. Korean Registered Patent No. 1445363 (Apr. 19, 2014) was registered.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an apparatus and a method for injecting a drug, And a second object of the present invention is to provide a device for continuously injecting an injection amount and an injection rate of a drug at a constant rate and a third object of the present invention is to provide a small, The fourth object of the present invention is to provide a drug injection device of a silicone type which is simple in structure and can reduce manufacturing cost and productivity by a small number of parts, The purpose of 5 is to tighten the upper and lower ends of the inflation injection pumping unit with an inclined joint screw, The sixth object of the present invention is to provide a medicine dispenser for a medical dispenser, which is capable of tightly fastening a drug injection port and has a merit of simple disassembly and assembly. The eighth object of the present invention is to provide a drug injecting device which can improve the quality and reliability of the drug injecting device so that the user can meet various needs of the user, Lt; / RTI >

In order to achieve the above object, the present invention provides a drug infusion device capable of continuously injecting a drug at an infusion rate and a infusion rate at a constant rate, wherein the drug infusion device includes a lower cap Top cap; A lower cap sliding up and down in a state of being fitted in the upper cap; The upper and lower ends of the expansion and injection pumping unit and the pumping load alone unit and the pumping load uniting unit, respectively, tightly tightening the upper and lower ends of the expansion injection pumping unit; An out-shaft having at least one or more holes for allowing a drug to flow in and out, as well as a fastening hole to be fastened to the upper end of the pumping load single joint; An inner shaft fitted in the upper end of the out shaft, a lower end connected to the upper end of the out shaft, and an upper shaft fastened to the pumping floating single unit, and a fastening hole formed at the upper end; And an inflation injection pumping part which is inserted between the pumping floating single punch and the pumping load single punch and is swollen and inflated when the drug is injected.

As described in detail above, according to the present invention, the drug injector is provided with an upper cap, a lower cap, an outshaft and an inner shaft, an inflation injection pumping section and a stopper, and a single pumping-

According to the present invention, the injection amount and the injection rate of the drug can be continuously injected at a constant rate.

In addition, the present invention is made to be a compact and compact structure.

In addition, the present invention provides a pump structure of a drug injection device of a silicon type, which simplifies the structure and reduces manufacturing cost and productivity by a small number of parts.

Particularly, the present invention prevents the problem of tearing or popping the silicon in the process of fastening because it is fastened with inclined joint screws at the upper and lower ends of the inflation pumping part.

In addition, the present invention is advantageous in that the drug injection port can be tightly fastened, and the disassembly and assembling is simple.

In addition, the present invention allows the upper cap and the lower cap to be actuated in a sliding manner to enable smooth drug injection.

As a result, the quality and reliability of the drug injection device can be greatly improved. Therefore, the present invention is a very useful invention that can provide a good image by satisfying various needs of users as users.

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

1 is an exploded perspective view of a continuously injectable drug infusion device adapted to the present invention.
2 is an exploded perspective view of a continuously injectable drug infusion device adapted to the present invention.
3 is a cross-sectional view of a continuously injectable drug infusion device applied to the present invention,
The state of the window injection pump is bulky and bulky.
4 is a cross-sectional view of a continuously injectable drug infusion device applied to the present invention,
The window infusion pump becomes bulky due to swelling and the lower cap is lowered
Degree.
5 is a partially enlarged cross-sectional view showing a retaining ring and a stopper applied to the present invention.
FIG. 6 is a partially enlarged view showing a combined portion of the pumping-
Cross section.
FIG. 7 is a partially enlarged view showing a combined portion of the pumping load single-
Cross section.

The sustained infusible drug infusion device according to the present invention is constructed as shown in Figs. 1 to 7.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Also, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and the present invention is not necessarily limited to those shown in the drawings.

First, the present invention provides a drug injection device 100 capable of continuously injecting an injection amount and an injection speed of a drug at a constant rate, and will be described in more detail as follows.

The present invention is provided with a lower cap (120) fitted to the lower end and an upper cap (110) guiding the upper and lower slidable operation.

Also, the present invention is provided with a lower cap 120 slidable up and down in a state of being fitted in the upper cap 110.

In this case, the upper and lower caps 110 and 120 applied to the present invention may be selectively used in circular or polygonal shapes.

The present invention may further include a pumping unit single unit 170 provided inside the upper and lower caps 110 and 120 for closely tightening the upper and lower ends of the inflation injection pumping unit 150, .

The present invention also includes an out shaft 130 having at least one or more holes 131 formed therein for introducing and discharging drugs, as well as a fastening hole 132 formed at the upper end of the pumping load single unit 170.

In addition, the present invention includes an inner shaft 140 having a lower end fitted in the upper end of the outshaft 130, an upper end coupled to the pumping unit 170, and a fastening hole 141 formed at the upper end.

Particularly, the present invention provides a drug infusion device including an inflation injection pumping part 150 which is sandwiched between the pumping unit single unit 170 and the pumping load single unit 180 to inflate when a drug is injected.

In the meantime, the upper cap 110 of the present invention is provided with a fixed cap 190 for preventing the upper end of the inflation injection pumping unit 150 from being pushed in a folded state.

Meanwhile, the upper and lower caps 110 and 12, which are fastened by a sliding method, may form mutually concave and convex portions (not shown) so that they can easily slide up and down without detaching and rotating .

The upper joint 175 having the coupling recess 176 formed therein so as to be assembled inside the upper cap 110 is provided.

And an upper joint screw 171 which is fastened to the inside of the upper joint 175 and screwed to the fastening hole 141 so as to tightly close the upper end of the inflation injection pumping part 150.

The pumping load single unit 180 according to the present invention is provided with a lower joint 185 having a coupling groove 186 formed therein so as to be assembled in the lower cap 120.

In addition, at least one through hole 182 is formed in the lower joint 185 so that the lower end of the inflation injection pumping unit 150 is tightly adhered to the lower joint 185 and the screw is fastened to the fastening hole 132, A lower joint screw 181 is formed.

The outer joint surfaces of the upper joint screw 171 and the lower joint screw 181 applied to the present invention are provided with inclined surfaces 173 and 183 so as to tightly close the upper and lower ends of the inflation injection pumping part 150 while being screwed.

In addition, it is preferable that the inflation injection pumping unit 150 is made of silicone or rubber so that the inflation injection pumping unit 150 can swell and inflate when the drug is injected and can be compressed.

In addition, the present invention is provided with a fixing ring 165 integrally fixed to an upper end of the outshaft 130.

In addition, the present invention includes a stopper 160 integrally fixed to the lower end of the inner shaft 140.

The present invention is configured such that the stopper 160 is caught by the retaining ring 165 and is not separated any more during the expansion shaft pumping unit 150 is inflated so that the out shaft 130 and the inner shaft 140 are separated from each other. desirable.

Finally, the stopper 160 applied to the present invention is provided with a drug injection device having a plurality of cut-out portions 161 at regular intervals so that the drug introduced into the through hole 182 flows through the inside of the out-shaft 130 do.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

It is to be understood that the invention is not to be limited to the specific forms thereof which are to be described in the foregoing description, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims. .

The operation and effect of the continuously injectable drug injector of the present invention constructed as described above will be described below.

First, the present invention is capable of continuously injecting an injection amount and an injection rate of a drug at a constant rate.

To this end, FIG. 1 is a perspective view showing a state in which the components of the sustained infusible drug injection device 100 according to the present invention are disassembled.

2 is an assembled perspective view of a continuously injectable drug infusion device 100 applied to the present invention.

A stationary ring 165 and a stopper 160 are assembled to a portion where the inner shaft 140 and the outshaft 130 are coupled to each other and a pumping floating single unit 170 is mounted on the upper end of the inner shaft 140. [ And the lower end of the outshaft 130 is fastened to the lower end of the inflation injection pumping unit 150 by the single pumping load unit 180. [

The upper cap 110 and the lower cap 120 are coupled to each other on the outer circumferential surface of the assembled component so as to slide up and down.

FIG. 3 is a cross-sectional view of a continuously injectable drug injection device 100 applied to the present invention, in which the expansion injection pumping part 150 is bulged and bulky.

That is, the expansion injection pumping part 150 is positioned in a state of wrapping the outer circumferential surfaces of the inner shaft 140 and the outer shaft 130.

FIG. 4 is a sectional view of a continuous infusible drug injection device 100 applied to the present invention, in which the inflation injection pumping part 150 is bulged and bulky and the lower cap 120 is lowered.

That is, the medicine flows into the inside of the outshaft 130 through the through hole 182 of the lower joint screw 181. Then, the drug is discharged to the outside through the hole 131, in which the inflation injection pumping part 150 is inflated.

The drug is injected through the incision 161 of the stopper 160 to swell the expansion injection pumping part 150 while passing through the fixing ring 165.

As described above, when the inflation injection pumping unit 150 continues to inflate and reaches the pressure of the opposite pressure, the lower cap 120 relatively descends to maintain the state as shown in FIG.

As described above, when the infusion injection pumping unit 150 is inflated and the drug is injected into the patient, the drug can be slowly injected into the patient while escaping through the through hole 182.

5 is a partially enlarged cross-sectional view showing a retaining ring 165 and a stopper 160 applied to the present invention, so that the inner shaft 140 and the out shaft 130 are not separated from each other.

That is, when the inflation pumping unit 150 continues to inflate, the inner shaft 140 and the outshaft 130 are separated from each other. In this process, the fixing ring 165 is fixed to the tip of the outshaft 130 The stopper 160 is caught by the retaining ring 165 and is prevented from escaping to the outside when the stopper 160 fixed to the inner shaft 140 comes out.

6 is a partially enlarged cross-sectional view showing a joint portion of the joint screw 175, the inflation injection pumping portion 150, and the joint 171 applied to the present invention.

And FIG. 7 is a partially enlarged cross-sectional view showing a coupled portion of the pumping load single unit 180 applied to the present invention.

The above-described present invention plays a role of tightly fixing the upper and lower ends of the inflation injection pumping unit 150 closely.

That is, the upper and lower portions of the inflation injection pumping portion 150, which are sandwiched between the outer peripheral surfaces of the upper and lower joint screws 171 and 181 and the inner peripheral surfaces of the upper and lower joints 175 and 185, The inclined surfaces 173 and 183 can press the upper and lower portions of the inflation injection pumping part 150 tightly to increase airtightness.

In addition, in the present invention, the inflation injection pumping part 150 is made of silicone or rubber material and has an elongated property. In particular, the upper end of the inflating injection pumping part 150 having a large pulling force is formed by pressing the inflation injection pumping part 150 .

The technical idea of the drug injector of the present invention is that the same results can be repeatedly practiced. Particularly, by implementing the present invention as described above, it is possible to contribute to industrial development by promoting technological development,

Description of the Related Art
100: drug injection device
110: upper cap
120: Lower cap
130: Out shaft
140: Inner shaft
150: inflation injection pumping part
160: Stopper
170: Combined pumping injured group
175: Pumping load combination

Claims (6)

The drug injection device (100) is provided with a drug injection device (100) capable of continuously injecting a drug at an injection rate and an injection rate at a constant rate,
An upper cap (110) for guiding the lower cap inserted into the lower end to slide up and down;
A lower cap (120) sliding up and down in a state of being fitted in the upper cap;
A pumping unit single unit 170 and a pumping load single unit 180 provided inside the upper and lower caps 110 and 120 to closely tighten the upper and lower ends of the inflation injection pumping unit 150;
An out-shaft 130 having at least one or more holes 131 to allow the drug to flow in and out as well as a fastening hole 132 to be fastened to the upper end of the pumping load single unit 170;
An inner shaft 140 having a lower end fitted in the upper end of the outshaft 130, an upper end coupled to the pumping upper single unit 170, and a fastening hole 141 formed at the upper end; And
And an inflation injection pumping part (150) sandwiched between the pumping floating single unit (170) and the pumping load single unit (180) to inflate when the drug is injected,
The pumping-float single-tooth assembly 170 includes:
An upper joint 175 having a coupling groove 176 formed therein so as to be assembled inside the upper cap 110; And an upper joint screw 171 fastened to the inside of the upper joint 175 and screwed to the fastening hole 141 so as to closely contact the upper end of the inflation injection pumping part 150,
The pumping load single unit 180 is a single-
A lower joint 185 having a coupling groove 186 formed therein so as to be assembled inside the lower cap 120; The lower joint 185 and the lower end of the inflation injection pumping unit 150 are closely contacted with each other so that the lower end of the inflation injection pumping unit 150 is tightly fastened to the fastening hole 132 while at least one through hole 182 is formed And a lower joint screw (181) formed thereon.
delete The method according to claim 1,
The outer joint surface of the upper joint screw 171 and the lower joint screw 181 further includes an inclined surface 173 and an inclined surface 173 to tightly close the upper and lower ends of the inflation injection pumping part 150 while being screwed together. Injection device.
The method according to claim 1,
The inflation injection pumping unit 150 includes:
Characterized in that it is made of silicone or rubber material so that it can swell and expand when the drug is injected and can be compressed.
The method according to claim 1,
A fixing ring 165 integrally fixed to an upper end of the out shaft 130; And
A stopper 160 integrally fixed to the lower end of the inner shaft 140;
Wherein the stopper (160) is caught by the retaining ring (165) so that it is no longer separated during the expansion shaft (130) and the inner shaft (140) Device.
The method of claim 5,
In the stopper 160,
Further comprising a plurality of cut-out portions (161) at predetermined intervals so that the drug introduced into the through holes (182) flows through the inside of the out-shaft (130).

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