KR20230058935A - Small capacity Luer lock syringe having dual barrel - Google Patents

Abstract

The present invention relates to a small-capacity Luer lock syringe having a double-barrel structure, and more particularly, to a small-capacity syringe, comprising: an inner barrel having a barrel head at the upper end and barrel plunges protruding at both ends of the lower end; a plunger inserted into the inner space of the inner barrel to inject the drug into the inner barrel; A body inserted into the outer side of the inner barrel and having a tubular inner surface spaced apart from the outer surface of the inner barrel by a specific distance, a luer lock fastening part connected to the top of the body, and a barrel mounting end that is force-fitted with the outer top of the inner barrel an outer barrel having; A needle hub in which a needle is installed and inserted into the luer lock fastening part to be coupled and fixed; and a needle cap installed on the outside of the needle hub to close the needle during storage.

Description

Small capacity Luer lock syringe having dual barrel}

The present invention relates to a small-capacity luer lock syringe having a double barrel structure.

In the case of a small-capacity (hereinafter referred to as 1cc) syringe, it is a syringe with a 1cc dose inside the barrel. 1 shows a cross-sectional view of a 1 cc syringe. In the case of this 1cc syringe, like a normal syringe, it is composed of a needle hub 60 equipped with a needle 61, a barrel 2, and a plunger 4, but according to international standards, the inside of the barrel 2 diameter is fixed.

In addition, the luer lock syringe is configured by separately forming a luer lock fastening part that can be screwed into the head of the barrel and screwing the flange of the needle hub thereto.

In the case of a 1cc syringe, since the inner diameter of the barrel is determined by the standard, when it is manufactured as a luer lock type, a luer lock joint with a large inner diameter is formed on the barrel head or the thickness is increased to increase the outer diameter while the inner diameter is fixed. should be excessively large.

2 is a cross-sectional view of a conventional 1cc luer lock syringe having a large thickness, and FIG. 3 is a cross-sectional view of a 1cc syringe having a luer lock fastening part having a separate large diameter.

As shown in FIG. 2, when the thickness of the barrel 2 is increased to use a 1cc syringe as a luer lock type, the transparency deteriorates when the PP material is used, so the type of drug inside the barrel 2 and the amount of the drug cannot be accurately grasped, and in the case of manufacturing with PC, the amount of material increases, resulting in an uneconomical disadvantage.

In addition, as shown in FIG. 3, in the case of forming a luer lock fastening part 73 having a large diameter, it is difficult to manufacture, and it is difficult to store and pack the syringe.

In addition, in the case of the conventional luer lock syringe 1, since the needle hub 60 is luer locked to the barrel 2, the direction of the oblique line 63 at the tip of the needle 61 cannot be adjusted. Therefore, at the time of manufacture, there is a problem that the relative position of the protruding position of the barrel flange 5 and the needle slash 63 is fixed and cannot be adjusted, and when injecting the needle based on the position of the needle slash 63, the capacity In the case of a position where the displayed index cannot be confirmed, there is a disadvantage that the position cannot be changed.

Republic of Korea registered utility model 20-0493963 Republic of Korea Patent No. 2185590 Republic of Korea Patent No. 2267307

Therefore, the present invention has been made to solve the above conventional problems, and according to an embodiment of the present invention, an outer barrel having a separate luer lock fastening part is provided outside the barrel of a 1cc syringe, maintaining transparency and economical 1cc luer lock syringe can be manufactured, and after fixing the needle hub to the luer ring joint of the outer barrel, the (inner) barrel can be rotated relative to the outer barrel, so the user can check the capacity indicator (index) Its purpose is to provide a small-capacity luer lock syringe having a double barrel structure capable of performing injection by adjusting to do so.

On the other hand, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems that are not mentioned will become clear to those skilled in the art from the description below. You will be able to understand.

A first object of the present invention is a small-capacity luer lock syringe, applied to the small-capacity syringe, comprising: an inner barrel having a barrel head at an upper end and barrel plunges protruding at both ends of a lower end; a plunger inserted into the inner space of the inner barrel to inject the drug into the inner barrel; A body inserted into the outer side of the inner barrel and having a tubular inner surface spaced apart from the outer surface of the inner barrel by a specific distance, a luer lock fastening part connected to the top of the body, and a barrel mounting end that is force-fitted with the outer top of the inner barrel an outer barrel having; A needle hub in which a needle is installed and inserted into the luer lock fastening part to be coupled and fixed; And a needle cap mounted on the outside of the needle hub to close the needle during storage; it can be achieved as a small-capacity Luer lock syringe having a double barrel structure, characterized in that it comprises a.

And in a state where the needle hub is fastened to the luer lock fastening part, it may be characterized in that the relative rotation of the inner barrel with respect to the outer barrel is possible.

In addition, the thickness of the outer barrel and the inner barrel may be characterized in that 0.5mm ~ 3mm.

In addition, a screw thread is formed in the luer lock fastening part, and a lower flange of the needle hub is screwed to the screw thread so that the needle hub is fastened in the outer barrel.

In addition, the luer lock fastening part is configured to fasten the needle hub to which the protective cover is coupled, and the protective cover, in the storage mode, the needle cap is located in the inner space, and the other side opposite to one side is composed of an open surface. A cover part having sides provided on both sides of the side surface and having a locking member for locking the needle in the discard mode inside, connected to be foldable by the lower end of the cover part and the connecting end, and equipped to fix the needle hub and needle cap at the same time It includes a shield unit integrally formed with a main body having wings supporting the hooking member at one end and both ends, and a needle cap inserted above the mounting end and located inside the cover in a storage mode, and the needle hub It may be characterized in that it is inserted into the inside of the needle hub mounting end.

According to the small-capacity luer lock syringe having a double barrel structure according to an embodiment of the present invention, an external barrel having a separate luer lock fastening part is provided outside the barrel of the 1cc syringe to economically manufacture a 1cc luer lock syringe while maintaining transparency. After fixing the needle hub to the luer joint of the outer barrel, the (inner) barrel can be rotated relative to the outer barrel, so that the user can check the capacity indicator (index) to perform injection. have possible effects.

On the other hand, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the invention serve to further understand the technical idea of the present invention, the present invention is limited only to those described in the drawings. and should not be interpreted.
1 is a cross-sectional view of a 1cc syringe;
Figure 2 is a cross-sectional view of a conventional luer lock 1cc syringe having a large thickness;
Figure 3 is a cross-sectional view of a 1cc syringe having a luer lock fastening with a separate large diameter;
4 is an exploded perspective view of a 1cc luer lock syringe having a double barrel structure according to an embodiment of the present invention;
5 is a cross-sectional view of a state in which a plunger, an inner barrel, and an outer barrel are coupled according to an embodiment of the present invention;
6 is a cross-sectional view of a state in which the needle hub is fastened to the luer coupling part in FIG. 5;
7 is a cross-sectional view of a state in which the inner barrel is rotated so that the user can check the index in FIG. 6;
8 is a front view of a 1cc luer lock syringe having a double barrel structure in a transport storage mode equipped with a protective cover according to an embodiment of the present invention;
9 is a front view of a protective cover for a syringe for preventing reuse according to an embodiment of the present invention in a transport storage mode;
10 is a front view of a 1cc luer lock syringe having a double barrel structure equipped with a protective cover for preventing reuse in disinfection mode according to an embodiment of the present invention;
11 is a front view of a protective cover for a syringe for preventing reuse according to an embodiment of the present invention in a disinfection mode;
12 is a front view in the chemical liquid intake mode in which the needle cap is detached from FIG. 10;
13 is a front view in a standby mode with the cover part closed in FIG. 12;
14 is a front view in a use mode in which the cover part is completely removed in FIG. 13;
Figure 15 shows a front view in the discard mode in which the lid is locked in two stages.

The above objects, other objects, features and advantages of the present invention will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

In this specification, when an element is referred to as being on another element, it means that it may be directly formed on the other element or a third element may be interposed therebetween. Also, in the drawings, the thickness of components is exaggerated for effective description of technical content.

Embodiments described in this specification will be described with reference to cross-sectional views and/or plan views, which are ideal exemplary views of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Accordingly, the shape of the illustrated drawings may be modified due to manufacturing techniques and/or tolerances. Therefore, embodiments of the present invention are not limited to the specific shape shown, but also include changes in the shape generated according to the manufacturing process. For example, a region shown at right angles may be rounded or have a predetermined curvature. Accordingly, the regions illustrated in the drawings have attributes, and the shapes of the regions illustrated in the drawings are intended to illustrate a specific shape of a region of a device and are not intended to limit the scope of the invention. Although terms such as first and second are used to describe various elements in various embodiments of the present specification, these elements should not be limited by these terms. These terms are only used to distinguish one component from another. Embodiments described and illustrated herein also include complementary embodiments thereof.

Terminology used herein is for describing the embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprises' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, several specific contents are prepared to more specifically describe the invention and aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described in order to prevent confusion for no particular reason in explaining the present invention.

Hereinafter, the configuration and function of the small-capacity (hereinafter, 1 cc) luer lock syringe 1 having a double barrel structure according to an embodiment of the present invention will be described.

First, FIG. 4 is an exploded perspective view of a 1cc luer lock syringe having a double barrel structure according to an embodiment of the present invention. And Figure 5 shows a cross-sectional view of a state in which the plunger, the inner barrel, and the outer barrel are coupled according to an embodiment of the present invention. 6 is a cross-sectional view of a state in which the needle hub is fastened to the luer coupling part in FIG. 5 . 7 is a cross-sectional view of a state in which the inner barrel is rotated so that the user can check the index in FIG. 6 .

As shown in FIG. 4, the 1cc luer lock syringe (1) having a double barrel structure according to an embodiment of the present invention is configured to include the same inner barrel (2) and plunger (4) as those of a conventional 1cc syringe. can

Even if the inner barrel 2 corresponds to the Luer lock type, it has the same inner diameter and outer diameter thickness as those of a conventional 1cc syringe.

The inner barrel 2 has a barrel head 3 at the upper end and barrel plunges 5 protruding at both ends of the lower end in a form applied to a typical 1cc syringe. In addition, there is an index capable of confirming capacity on the outer surface of the inner barrel 2. The plunger is inserted into the inner space of the inner barrel (2) and is configured to inject the drug in the inner barrel (2).

A 1cc luer lock syringe 1 according to an embodiment of the present invention includes an external barrel 70. The outer barrel 70 is inserted into the outside of the inner barrel 2 and has a tubular shape, and a body 71 whose inner surface is spaced apart from the outer surface of the inner barrel 2 by a specific distance, and a luer connected to the top of the body 71. It is configured to have a lock fastening part 73 and a barrel mounting end 72 that is press-fitted with the outer top of the inner barrel 2.

The outer barrel 70 is similar to the inner barrel 2 and is composed of an equivalent thickness. For example, the thickness of the outer barrel and inner barrel each ranges from about 0.5 mm to about 3 mm.

That is, the outer barrel 70 is inserted to be spaced apart from the inner barrel 2 by a specific distance, and the barrel mounting end 72 is positioned between the luer lock fastening part 73 and the body 71 so that the inner barrel 2 In this fitted state, the inner barrel (2) is mounted so as to be able to rotate with respect to the outer barrel (70).

And, a screw thread is formed on the inner surface of the luer lock fastening part 73, and the needle hub 60 can be screwed and fastened to this screw thread.

A needle 61 is mounted on the upper end of the needle hub 60, and a needle flange 62 is formed on the lower end of the needle hub 60, so that the needle flange 62 is screwed into the screw thread of the luer lock fastening part 73. It is composed so that

Therefore, by having a separate external barrel 70 having such a luer lock fastening, it is economical because there is no need to thicken the barrel like the 1cc luer lock shown in FIG. 2, and the transparency inside the barrel can be maintained, It is easy to check the chemical solution stored in, and as shown in FIG. 3, since a separate large-diameter luer lock fastening part is not molded at the top of the barrel, it is easy to manufacture a 1cc luer lock syringe for easy packaging.

In addition, as shown in FIG. 6, the outer barrel 70 is mounted on the inner barrel 2, and the needle hub 60 is fastened and fixed to the luer lock fastening part 73 of the outer barrel 70. , Even when the flange 5 of the inner barrel is not located at both ends and the capacity display index cannot be confirmed in the scanning standby state in which the oblique line 63 of the needle is directed toward the sky, FIG. 7 according to an embodiment of the present invention As shown in, the inner barrel 2 can be rotated based on the outer barrel 70 to which the needle hub 60 is fastened, so that the flange 5 of the inner barrel maintains a diagonal line facing the sky. It is located on both ends, and it can be seen that the position of the inner barrel 2 can be adjusted to a position where the capacity display index can be checked.

In addition, a needle hub provided with a protective cover may be fastened to the luer lock fastening part of the outer barrel of the luer lock syringe having a double barrel structure according to an embodiment of the present invention. Hereinafter, the configuration, function, and usage method of the protective cover for preventing reuse according to an embodiment of the present invention will be described.

8 is a front view of a 1cc luer lock syringe having a double barrel structure in a transport storage mode equipped with a protective cover according to an embodiment of the present invention. And Figure 9 shows a front view of a protective cover for a syringe for preventing reuse according to an embodiment of the present invention in transport storage mode.

10 is a front view of a 1cc luer lock syringe having a double barrel structure equipped with a protective cover for preventing reuse in disinfection mode according to an embodiment of the present invention, and FIG. 11 is an embodiment of the present invention in disinfection mode. It shows a front view of a protective cover for a syringe for preventing reuse according to. 12 is a front view in FIG. 10 in the chemical liquid intake mode with the needle cap removed, FIG. 13 is a front view in the standby mode with the cover part closed in FIG. 12, and FIG. 14 is a use mode in which the cover part is completely removed in FIG. 15 shows a front view in the discard mode in which the cover is locked in two stages.

The protective cover 100 for a syringe to prevent stabbing and reuse according to an embodiment of the present invention may be composed of a shield unit 10, a needle cap 50, and a needle hub 60 as a whole, and a needle hub ( The needle flange of 60) is assembled and fastened to the luer lock fastening part 73 of the aforementioned 1cc luer lock syringe 1.

The shield unit 10 is integrally composed of the cover part 30, the connection end 40, and the main body part 20, and is manufactured as one piece by injection molding. In the cover part 30, the needle cap 50 is located in the internal space in the storage mode, and the other side opposite to one side 31 is composed of an open side and the side 32 provided on both sides of the one side 31 configured to have And a locking member 34 for locking the needle 61 in the discard mode is provided therein.

In addition, the main body part 20 is connected to the lower end of the cover part 30 and the connection end 40 so as to be foldable, and has wing parts 23 supporting the holding member at the mounting end and both ends, respectively, and the main body part 20 has are made up of a single piece.

The mounting end has a two-stage structure including a needle hub mounting end 21 and a separate needle cap mounting end 22. The needle hub mounting end 21 is provided at the bottom inside the mounting end, and the needle hub 60 is inserted and mounted, and the needle cap mounting end 22 has a needle cap 50 separately inserted into the upper inside of the mounting end.

The needle cap 50 is inserted inside the needle cap mounting end 22 and is located inside the cover part 30 in storage mode. In the needle hub 60, a needle 61 is installed and inserted into the needle hub mounting end 21.

In addition, in the embodiment of the present invention, through the engaging member 33, it is configured to prevent double reuse and stabbing in the discard mode. The hooking member 33 is provided on both sides of the lower side of the side surface 32 of the other side of the cover part 30, and is hooked to one edge of the main body part 20 in the discard mode, so that the needle 61 is bent in the cover part ( 30) is configured to be locked.

In addition, according to the embodiment of the present invention, the cap support end 35 is provided inside the cover part 30, so that the needle cap 50 is located inside the cover part 30 in the storage mode, and the needle cap 50 ) and is configured to guide so that verticality is maintained.

And the connection end 40 is configured to include a folding end 41 and a locking groove 42 that allow the cover portion 30 to rotate relative to the other edge of the main body portion 20 . In addition, in the standby mode in which the liquid is introduced between the barrel 2 and the plunger 4 of the syringe 1 and waits for use, the needle 61 is not locked to the locking member 34 and the lid 30 is closed. It includes an upper latch 43 that is caught in the hook groove 42 so as to be fixed in a position to protect the needle 61. In addition, it includes a lower latch 44 that is caught in the locking groove 42 so that the cover part 30 is maintained in a completely open state during use mode.

In addition, the upper latch 43 is so that the needle 61 is not locked to the locking member in the standby mode in which the liquid is drawn into the syringe and is waiting for use, and the cover part is fixed in a position that protects the needle, and in the discard mode, the needle It enables the two-step function of being caught in the locking groove to be completely locked.

In addition, in the needle cap 50 according to the embodiment of the present invention, the alcohol storage portion 51 provided on the upper side of the needle cap 50 and storing alcohol or alcohol swab therein, and the lower portion of the alcohol storage portion 51 It may be configured to include a cover 53 that is detachable to the top of the membrane member 52, and the alcohol storage unit 51 for closing.

Therefore, in the disinfection mode, the injection site can be disinfected by opening the lid 30 and detaching the lid 53 of the needle cap 50 using alcohol stored in the alcohol storage unit 51 or an alcohol swab.

Hereinafter, a method of using the protective cover 100 for a syringe to prevent stabbing and reuse according to an embodiment of the present invention will be described.

As shown in FIGS. 8 and 9 , it can be seen that the needle cap 50 is positioned inside the cover part 30 of the shield unit 10 in the storage and transportation modes. The verticality of the needle cap 50 is maintained by the cap support end 35 inside the cover part 30, and is positioned inside the cover part 30. In addition, the top latch 43 is caught in the locking groove 42, so that the closed state of the cover portion 30 is maintained.

And, as shown in FIGS. 10 and 1, in the disinfection mode, open the cover 30, detach the cover 53 on the top of the needle cap 50, and alcohol or alcohol swap stored in the alcohol storage 51 to disinfect the injection site.

And, as shown in FIG. 12, the needle cap 50 is detached and the liquid medicine is introduced into the syringe 1. In addition, when waiting without injecting the drug into the patient immediately after the introduction of the drug, in the conventional case, the needle cap 50 is closed again or the needle 61 is exposed, and there is a risk of being stabbed by the needle 61 However, according to an embodiment of the present invention, as shown in FIG. 13, it can be seen that the exposure of the needle 61 can be protected in a state in which the needle 61 is not locked by closing the cover 30 again. . That is, in the standby mode in which the liquid is drawn into the syringe 1 and standby mode is used, the needle 61 is not locked to the locking member 34 and the lid 30 is fixed at a position to protect the needle 61. The top latch 43 is caught in the locking groove 42 so as to be.

In the use mode, the drug solution is injected into the patient through the syringe 1 in a state in which the cover part 30 is completely opened until the lower latch 44 is caught in the locking groove 42.

And after use, the cover part 30 is closed in the discard mode, the needle 61 is locked by the locking member 34, and the cover part 30 is further moved in the closing direction so that the engaging member 33 is the body part 20 It is caught on the edge so that the needle 61 is bent and discarded. That is, the holding member 33 provided on both sides of the lower side of the side surface 32 of the other side of the cover part 30 is mounted on one corner of the main body part 20 in the discard mode, so that the needle 61 is bent in the cover part ( 30) is double-locked.

Therefore, the protective cover for a syringe for preventing stabbing and re-use prevention according to the above-mentioned embodiment of the present invention is 1) in the transportation and storage mode, the needle cap is always located within the protective cover, so it occupies a small volume during transportation and storage, and during transportation 2) Wings are provided on both sides of the main body of the shield unit to facilitate assembly with the head of the syringe barrel, 3) Lankick member in the cover in the disposal mode, and the cover It is possible to lock in two stages by the locking structure between the lower side of the side and the main body, and 4) It is possible to protect the needle by closing the lid even in standby mode after the medicine is introduced, preventing self-injury due to exposure of the needle before use. 5 ) An alcohol storage part is provided at the top of the needle cap, so it is possible to sterilize simply and quickly with alcohol or an alcohol swab before removing the cap. This makes mass production economically feasible.

In addition, the device and method described above are not limited to the configuration and method of the above-described embodiments, but all or part of each embodiment is selectively combined so that various modifications can be made. may be configured.

1: Small-capacity luer lock syringe with double barrel structure
2: Barrel (inner barrel)
3: barrel head
4: Plunger
5: barrel flange
10: shield unit
20: main body
21: needle hub mounting end
22: needle cap mounting end
23: Wings
30: cover
31: one side
32: side
33: catching member
34: locking member
35: cap support
40: connection end
41: folding edge
42: catch groove
43: top latch
44: lower latch
50: needle cap
51: alcohol storage unit
52: film member
53: cover
60: needle hub
61 needle
62: needle flange
63: oblique
70: external barrel
71: outer barrel body
72: inner barrel mounting end
73: Luer lock fastening part
74: thread
100: protective cover for syringe to prevent reuse

Claims (5)

In the small-capacity luer lock syringe,
Applied to a small-capacity syringe, an inner barrel having a barrel head at the top and a barrel plunge protruding at both ends at the bottom;
a plunger inserted into the inner space of the inner barrel to inject the drug into the inner barrel;
A body inserted into the outer side of the inner barrel and having a tubular inner surface spaced apart from the outer surface of the inner barrel by a specific distance, a luer lock fastening part connected to the top of the body, and a barrel mounting end that is force-fitted with the outer top of the inner barrel an outer barrel having; and
A needle hub in which a needle is installed and inserted into the luer lock fastening part to be coupled and fixed;
A small-capacity Luer lock syringe having a double barrel structure, characterized in that it comprises a; needle cap mounted on the outside of the needle hub to close the needle during storage.
According to claim 1,
A small-capacity luer lock syringe having a double barrel structure, characterized in that relative rotation of the inner barrel with respect to the outer barrel is possible in a state in which the needle hub is fastened to the luer lock fastening part.
According to claim 2,
A small-capacity Luer lock syringe having a double barrel structure, characterized in that the outer barrel and the inner barrel have a thickness of 0.5 mm to 3 mm.
According to claim 2,
A small-capacity luer lock syringe having a double barrel structure, characterized in that a screw thread is formed in the luer lock fastening part, and the lower flange of the needle hub is screwed to the screw thread so that the needle hub is fastened in the outer barrel.
According to claim 1,
The luer lock fastening part is configured to fasten the needle hub to which the protective cover is coupled,
The protective cover,
In the storage mode, the needle cap is located in the inner space, and the other side opposite to one side is composed of an open side, and has a side surface provided on both sides of one side, and a cover portion provided with a locking member for locking the needle in the discard mode inside , The shield unit is connected to the lower end of the cover part and the connection end so as to be foldable, and the main body part having a mounting end for fixing the needle hub and the needle cap at the same time and a wing part for supporting the holding member at each of both ends are integrally configured,
A small-capacity luer lock syringe having a double barrel structure, characterized in that the needle cap is inserted above the mounting end and is located inside the lid in the storage mode, and the needle hub is inserted inside the needle hub mounting end.

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