KR101986953B1 - Quantitative repetitive syringe - Google Patents

Abstract

A metered dose repeated syringe according to an embodiment of the present invention includes: a cylinder which receives a drug and has a flange formed at a rear end; A needle directly connected to the front end of the cylinder; A piston movable in the cylinder; A rod extending rearwardly from the piston and having an outer threaded portion; And an injection dose setting mechanism for setting the injection dose of the drug by regulating the stroke length of the rod so as to regulate the injection length of the drug, wherein the injection dose setting mechanism includes a screw rod arranged in parallel with the rod, And a second stopper configured to be adjustably positioned along the rod, wherein the screw rod may have a graduation groove and a graduation for setting the injection dose of the drug.

Description

{QUANTITATIVE REPETITIVE SYRINGE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quantitative repetitive injection syringe, and more particularly, to an injection device for injecting a medication accurately and accurately so as to conform to a prescription, The present invention relates to a quantitative repetitive syringe capable of quickly and quantitatively injecting a drug in accordance with a set injection volume.

In general, a syringe is a device for injecting a therapeutic drug into the skin, and a user such as a doctor or a nurse is configured to inject an appropriate amount of the drug into the skin as necessary according to the purpose.

Typically, the syringe includes a syringe body containing the drug, a piston to assist injection by pushing the drug out of the syringe, a rod connected to the piston, and a needle, . When the body is pierced with a needle and inserted into blood vessels and muscles, and the drug is administered, the drug can be injected through the hole drilled in the needle.

However, since the conventional syringe has a structure in which a user presses the rod connected to the grip portion by hand and injects the drug, there is a disadvantage that it is difficult to quantitatively inject the drug repeatedly uniformly and accurately.

On the other hand, filler injections are used to treat wrinkles and scars, and are often used on smooth surfaces such as Juvederm, Restylane, and the like, The filler is injected into the skin. Particularly, when filling wrinkles and elasticity in a wide area of a human body such as a face or a back of a specific part, the filler injection is not only required to uniformly and rapidly inject a very small amount of drug at a constant rate, The injection volume should be repeatedly and rapidly injected.

 However, in the conventional syringe, as the drug in the syringe is injected suddenly and a large amount at the initial stage of depressing the rod, there is a disadvantage that it is difficult to perform the operation in a minute and dangerous area such as the eyes or eyes.

In addition, the conventional syringe can not precisely set (adjust) the injection capacity in accordance with the prescription, and thus has a disadvantage that it is not possible to rapidly and repeatedly inject the injection capacity corresponding to the prescription.

Prior Art 1: Korean Patent Publication No. 10-2016-0141502 Prior Art 2: Korean Patent Registration No. 10-0756672 Prior Art 3: Korean Patent Registration No. 10-1706837 Prior Art 4: Korean Patent Publication No. 10-2018-0019468 Prior Art 5: Utility Model Registration Bulletin 20-0323838 Prior Art 6: Utility Model Registration Bulletin 20-0420301 Prior Art 7: Korean Patent Registration No. 10-0157657 Prior Art 8: Utility Model Registration Bulletin 20-0166416

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a syringe which can accurately and easily set the injection volume of a drug conforming to a prescription, As a basic task.

It is another object of the present invention to provide a combined syringe that can be used as a normal syringe according to the user's needs and can also rapidly inject the set injection dose in a fixed amount, repetition, or the like.

According to an aspect of the present invention,

A cylinder containing a drug and having a flange formed at a rear end thereof;

A needle directly connected to the front end of the cylinder;

A piston movable in the cylinder;

A rod extending rearwardly from the piston and having an outer threaded portion; And

And an injection dose setting mechanism for setting the injection dose of the drug by regulating the stroke length of the rod so as to be adjusted,

Wherein the injection dose setting mechanism includes a threaded rod disposed in parallel with the rod, a first stopper configured to be adjustably positioned along the threaded rod, and a second stopper configured to be adjustably positioned along the rod,

The screw rod may have graduation grooves and graduations for setting the injection volume of the drug.

The screw rod can extend from the flange of the cylinder.

One end of the screw rod is fixed to the flange of the cylinder, and a head part can be formed at the other end of the screw rod.

The screw rod may have a flat surface, the flat surface may extend along the longitudinal direction of the screw rod, and the scale may be formed along the flat surface.

The first stopper has an inner threaded portion engaging with an outer threaded portion of the screw rod, so that the first stopper can be screwed along the threaded rod.

The rod has an outer threaded portion formed on the outer surface thereof and the second stopper has an inner threaded portion mating with the outer threaded portion of the rod so that the second stopper can be screwed along the rod.

The first stopper may have a first regulating surface facing toward the second stopper, and the first regulating surface may be formed flat.

The second stopper may have a second restriction surface facing the first restriction surface of the first stopper, and the second restriction surface may be formed flat.

The second stopper may have a third restricting surface facing the flange of the cylinder, and the third restricting surface may be formed flat.

The graduation grooves and graduations may be formed on the screw thread in a plurality of or more than one,

The position of the second stopper is located at the rear end of the rod 17 in the abovementioned quantitative repeat syringe so as to maximize the stroke length and at the same time to separate from the screw rod 33 corresponding to the injection capacity setting mechanism 30 from the flange 19 And can be used in the same manner as a general syringe.

The present invention having such characteristics as described above can precisely and easily set the injection capacity of the drug by the injection dose setting mechanism of the syringe and is capable of precisely and easily setting the drug dose by repeatedly injecting the drug in the stepwise, There is an effect of removing the fine wrinkles and improving the elasticity of the area.

In the fine and dangerous areas such as the eyebrows or eyes where the ordinary filler treatment is difficult, injection of a very small amount of blood through a very short adjustment of the stroke length is effective for safely and easily injecting the procedure.

Further, the present invention is advantageous in that a user can use the same as a normal general syringe if necessary, and can also be used as a quantitative repeat syringe through a set injection dose setting mechanism.

1 is a view illustrating a syringe according to an embodiment of the present invention.
2 is a cross-sectional view taken along line AA in Fig.
FIG. 3 is a view showing a state in which a rod and a piston are advanced by a predetermined injection capacity in a syringe according to another embodiment of FIG. 1. FIG.
FIG. 4 is a view showing a state in which the rod and the piston are moved backward by the set injection volume in the syringe of FIG. 3;

The term used in the present invention is a general term that is widely used at present. However, in some cases, there is a term selected arbitrarily by the applicant. In this case, the term used in the present invention It is necessary to understand the meaning.

And, for alternative embodiments of the present invention disclosed in the present invention, specific structural and functional descriptions are merely illustrative for purposes of illustrating alternative embodiments of the present invention, and alternative embodiments of the present invention And may be embodied in various forms and should not be construed as limited to the embodiments set forth herein.

In addition, the present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in the present application. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Similar reference numerals have been used for the components in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

In the present invention, terms such as "comprise" or "comprise " are intended to specify the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of other features, numbers, steps, operations, elements, parts or combinations thereof.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

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

Referring to FIG. 1, a syringe 10 according to the present invention includes a cylinder 12 having a predetermined length. The cylinder 12 includes a hollow chamber 13, a cylinder 12, A first open end 21 formed at the front end and a second open end 22 formed at the rear end of the cylinder 12. The first open end 21 and the second open end 22 communicate with the hollow chamber 13. The needle 14 is coupled to the first open end 21 of the cylinder 12 so that the needle 14 can communicate with the hollow chamber 13 through the first open end 21. A flange 19 is provided at the rear end of the cylinder 12 and the piston 15 and the rod 17 are movably inserted into the hollow chamber 13 of the cylinder 12 through the second open end 22. [ .

The cylinder 12 may be made of a transparent material and a scale 35 may be formed on the outer surface of the cylinder 12 to indicate the capacity of the drug contained in the cylinder 12.

The piston 15 is movable within the hollow chamber 13 of the cylinder 12 and the piston 15 may have one or more seal rings 16. The sealing property can be ensured by the sealing 16 in a part of the space in which the medicine or filler is received in the hollow chamber 13. [

The rod 17 may extend long rearwardly from the piston 15 and the rod 17 may have an external thread 17a formed on its outer surface. According to one example, the front end of the rod 17 can be integrally connected to the piston 15. According to another example, the front end of the rod 17 may be releasably coupled to the piston 15. A grip 18 may be formed at the rear end of the rod 17.

As shown in FIG. 1, the present invention may include an injection quantity setting mechanism 30 capable of setting an injection quantity of a drug. The injection volume of the drug means the volume at which the drug is injected into the human body from the cylinder 12 when the rod 17 is pressed once. When the injection dose setting mechanism 30 sets the injection dose of the drug, the total capacity of the drug contained in the cylinder 12 can be distributed to the fixed dose repeated dose of the drug set, And can be rapidly injected repeatedly.

According to the embodiment of the present invention, the injection dose setting mechanism 30 can precisely and easily set the injecting capacity of the drug by regulating the stroke length (ST) of the rod 17.

The injection volume setting mechanism 30 according to one embodiment includes a threaded shaft 33 disposed parallel to the rod 17 and a threaded shaft 33 as shown in Figures 1-4, And a second stopper 32 movable along the rod 17. The first stopper 31 is movable along the rod 17 and the second stopper 32 is movable along the rod 17. [

The threaded rod 33 may have an external thread 33a formed on its outer surface. The threaded rod 33 can extend from the flange 19 of the cylinder 12 and one end of the threaded rod 33 can be fixed to the flange 19 of the cylinder 12. [ 1 or 3, the flange 19 may be formed with a threaded hole 19a, and one end of the threaded rod 33 may be inserted into the threaded hole 19a so that one end of the threaded rod 33 can be fixed to the flange 19 or the threaded rod 33 can be forcedly inserted into the threaded hole 19a, 19).

As another example, the nut 36 is fastened to one end of the screw rod 33, so that one end of the screw rod 33 can be firmly coupled to the screw hole 19a of the flange 19. [ At this time, a through hole may be formed in the flange 19 and one end of the threaded rod 33 is forcedly inserted into the through hole of the flange 19, so that one end of the threaded rod 33 can be fixed to the flange 19.

The threaded rod 33 can be disposed parallel to the rod 17 and the head portion 37 can be formed at the other end of the threaded rod 33. The head stopper 31 Can be prevented from being detached from the threaded rod 33. The screw rod 33 may be provided with a scale 35 for setting the injection volume of the drug. 2, the threaded bar 33 may have a flat surface 34 and the flat surface 34 may extend along the longitudinal direction of the threaded bar 33, And may be formed along the flat surface 34. The scale 35 may be formed on the flat surface 34 by printing or imprinting.

2, the scale 35 may be constituted by a plurality of graduation grooves 34 on the screw rod 33. In order to allow the user to easily view the graduations, The graduation groove 34 can be configured to be evenly divided.

The first stopper 31 can be configured to be movable along the screw rod 33 and regulate the position of the second stopper 32. [ The first stopper 31 may be a nut having a predetermined thickness. An internal thread 31a may be formed on the inner surface of the first stopper 31. The inner thread portion 31a of the first stopper 31 can be engaged with the outer thread portion 33a of the threaded rod 33. [ The first stopper 31 is moved in a threadably movable manner along the threaded rod 33 so that the first stopper 31 is adjustably positioned along the threaded rod 33 (The first stopper may be adjutably positioned along the rod 17).

The first stopper 31 may have a first limiting surface 31c facing toward the second stopper 32 and the first limiting surface 31c may have a flat surface .

The second stopper 32 may be a nut having a predetermined thickness and an internal thread 32a may be formed on the inner surface of the second stopper 32. [ The inner thread portion 32a of the second stopper 32 can be engaged with the outer thread portion 17a of the rod 17. [ The second stopper 32 can be adjustably positioned along the rod 17 by causing the second stopper 32 to threadably move along the rod 17. (a second stopper may be adjutably positioned along the rod 17).

The second stopper 32 has a second limiting surface 32c facing the first limiting surface 31c of the first stopper 31 toward the first limiting surface 31c of the first stopper 31, And a third limiting surface 32d facing towards the flange 19 of the cylinder 12. The second limiting surface 32c and the third limiting surface 32d 3 regulating surface 32d may be formed flat.

The second restricting surface 32c can come into contact with the first restricting surface 31c of the first stopper 31 as the second stopper 32 is retracted together with the rod 17 and the second stopper 32 Can be restrained by the first stopper 31. [0050]

As the second stopper 32 moves forward with the rod 17 the third restricting surface 32d can come into contact with the flat front surface of the flange 19 of the cylinder 12 and the second stopper 32, The forward position of the cylinder 12 can be regulated by the flange 19 of the cylinder 12.

The position of the first stopper 31 is adjusted along the scale 35 of the screw rod 33 and the position of the second stopper 32 at the position where it contacts the first stopper 31 The stroke length ST of the rod 17 can be set by moving. The quantitative injection capacity of the drug corresponding to the stroke length ST of the rod 17 can be set very easily.

3, when the user presses the rod 17 once, the rod 17 and the piston 15 advance by the stroke length ST of the rod 17 and the third restricting surface The forward movement of the second stopper 32 and the rod 17 can be stopped as the first stopper 32d comes into contact with the flange 19 of the cylinder 12 And the advance position of the rod 17 can be regulated. Thereby, the injection capacity of the drug can be injected in a fixed amount corresponding to the stroke length ST of the rod 17. [

Thereafter, as the user hands the second stopper 32 to the rear of the rod 17 (user rearwardly moves the second stopper 32), the second restricting surface 32c of the second stopper 32 (Refer to a virtual line in Fig. 3) of the first stopper 31 and the backward position of the second stopper 32 can be regulated. In this state, by pushing the rod 17 again, the user can uniformly and rapidly inject the drug stepwise, quantitatively and repetitively by the injection capacity corresponding to the stroke length of the rod 17. For example, when a filler such as juvidum, rastilene or the like is injected under the eyes, the under eye can be smoothened. For example, the infusion dose of the drug may be set to a very small amount or a small amount (e.g., a minimum of 0.1 to 0.3 ml, a maximum of 0.5 ml or more), and the infusion dose of the set drug may be continuously injected repeatedly at least 10 times .

According to the embodiment of the present invention, the injection capacity setting mechanism 30 is provided with a simple adjustment with the first stopper 31 movable along the screw rod 33 and the second stopper 32 movable along the rod 17 Structure, the assembly parts can be reduced, the injection capacity of the drug conforming to the prescription can be set more simply and precisely, and the drug can be precisely injected very quickly at a constant, .

In another alternative embodiment, the positions of the first and second stoppers may be positioned at the rear end of the rod 17 in the quantitative repeat syringe to increase the stroke length as much as possible, so that scanning can be performed in the same manner as in a normal syringe.

In another alternative embodiment, the position of the second stopper in the quantitative repeat syringe may be located at the rear end of the rod 17 to increase the stroke length as much as possible and at the same time, When it is detached and detached from the barb 33, it can be used in the same manner as a general syringe.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: syringe 12: cylinder
13: hollow chamber 14: needle
15: piston 17: rod
19: flange 19a:
21: first open end 22: second open end
30: injection capacity setting mechanism 31: first stopper
32: second stopper 33:
34: graduation groove 35: graduation
37:

Claims (11)

A cylinder containing a drug and having a flange formed at a rear end thereof;
A needle directly connected to the front end of the cylinder;
A piston movable in the cylinder;
A rod extending rearwardly from the piston and having an outer threaded portion; And
And an injection dose setting mechanism for setting the injection dose of the drug by regulating the stroke length of the rod so as to be adjusted,
Wherein the injection dose setting mechanism includes a threaded rod disposed in parallel with the rod, a first stopper configured to be adjustably positioned along the threaded rod, and a second stopper configured to be adjustably positioned along the rod,
Wherein the screw rod is extended and fixed from the flange of the cylinder, the other end of the screw rod includes a head portion,
Wherein the screw rod has a graduation groove and a graduation for setting the injection volume of the drug.
delete delete The method according to claim 1,
Wherein the screw rod has a flat surface and the flat surface extends along a longitudinal direction of the screw rod, and the scale is formed along the flat surface.
The method according to claim 1,
Wherein the screw rod has an outer thread portion formed on an outer surface thereof and the first stopper has an inner thread portion engaged with an outer thread portion of the screw rod so that the first stopper is screwed along the threaded rod. .
The method according to claim 1,
Wherein said rod has an outer threaded portion formed on its outer surface and said second stopper has an inner threaded portion mating with an outer threaded portion of said rod so that said second stopper threadedly moves along said rod.
The method according to claim 1,
Wherein the first stopper has a first restricting surface facing toward the second stopper, and the first restricting surface is formed flat.
The method according to claim 1,
Wherein the second stopper has a second restricting surface facing toward the first restricting surface of the first stopper, and the second restricting surface is formed flat.
The method according to claim 1,
Wherein the second stopper has a third restricting surface facing the flange of the cylinder, and the third restricting surface is formed flat.
The method according to claim 1,
Wherein the graduation grooves and graduations are formed on the screw thread in a plurality of or more than one.
The method according to claim 1,
The position of the second stopper is positioned at the rearmost position of the rod in the abovementioned quantitative repeat syringe to increase the stroke length as much as possible while at the same time detaching it from the threaded rod corresponding to the injection capacity setting mechanism from the flange, Wherein said injector is capable of injecting a liquid into said injector.

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