KR101722877B1 - Medicine injection niddle unit having stick injury and infection preventing fuction - Google Patents

Abstract

The present invention relates to a sticking needle and a liquid injection needle unit having an anti-infection function. More particularly, the present invention relates to a needle for a fluid injection needle unit, comprising: a needle film which is inserted into a blood vessel of a patient; A needle hub having an insertion hole which is an inner space penetrating from the upper end to the lower end, an upper inner flange formed on the upper inner circumferential surface, and an intermediate flange provided on one side of the intermediate portion; A needle unit which is fixed by a needle unit locking member to an insertion hole of the needle hub before scanning of the needle film and is inserted and removed after scanning of the needle film; A needle protruding from an upper end of the needle unit and inserted into an injection hole of the needle film on an outer surface of the needle film before scanning; A lower end having an open interior space, the main prior end of the needle film being secured to the needle hub; And a shield member which is provided at a lower end of the needle hub and into which the needle unit and the needle are inserted after being injected with the needle film, wherein the shield member is assembled to the lower end of the needle hub, And a second shield member assembled at a lower end of the first shield member and having an inner space having a rectangular cross section having a specific angle tilted with respect to a central axis of the rectangular cross section of the first shield member , And the needle unit is stored after being inserted into the second shield member. [0002] The present invention relates to a liquid injection needle unit having a stick preventive function.

Description

[0001] The present invention relates to a needle injection unit having a stick-

The present invention relates to a sticking needle and a liquid injection needle unit having an anti-infection function.

In general, to maintain / supplement the fluid, electrolytes, vitamins, proteins, fats and calories and the like, to properly maintain the blood constituents, or to promptly administer the drug in an emergency, In order to supply the patient, the patient injects liquid or drug into the vein of the patient through a syringe or the like.

In order to inject liquid or drug into the vein of the patient through the liquid injector, first, the blood vessel injecting needle film is injected into the blood vessel of the patient, and then the liquid connecting tube is connected to the hose connector of the needle film.

1A shows a front view of a conventional liquid injection needle unit 1 for injecting a needle film 20 into a blood vessel of a patient. 1B shows a front view of a conventional liquid injection needle unit 1 in a state in which the cover 10 is detached. 1C shows a state diagram schematically showing a state in which only the needle film 20 is detached and the liquid injection needle unit 1 is injected into the patient. 1D shows a front view of the conventional liquid injection needle unit 1 in a state in which the needle film 20 is detached.

1A, a conventional liquid injection needle unit 1 includes a cover 10, a needle film 20, a needle 31, a needle hub 40, a receiving portion 60, and the like Able to know. The cover 10 is mounted on the upper end of the needle hub 40 before the needle film 20 is injected.

1B, the cover 10 is detached to scan the needle film 20, and the needle 31 and the needle film 20 are inserted into the blood vessel of the patient, as shown in Fig. 1C. As shown in FIG. It can be seen that only the needle film 20 is left in the blood vessel and the liquid injection needle 1 is pulled out.

However, if the needle film 20 is detached from the conventional liquid injecting needle unit 1, there is a risk that the needle 31 is exposed to the outside and the sticking of the needle 31 is generated as shown in FIG. 1D . Therefore, there is a need for a method capable of preventing sticking of the needle film 20 originally before and after the injection.

Korean Patent No. 2012-0139105 Korean Patent No. 109596

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to improve the shape of a needle unit, a needle hub and a shield member, The needle unit mounted with the needle by the shield member connected to the lower end of the needle hub can be integrally inserted into the shield member to prevent stick injury and infection by the needle. A needle for a liquid injection needle unit having a stick preventive function is provided.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A first object of the present invention is to provide a liquid injection needle unit comprising: a needle film which is drawn into a blood vessel of a patient; A needle hub having an insertion hole which is an inner space penetrating from the upper end to the lower end, an upper inner flange formed on the upper inner circumferential surface, and an intermediate flange provided on one side of the intermediate portion; A needle unit which is fixed by a needle unit locking member to an insertion hole of the needle hub before scanning of the needle film and is inserted and removed after scanning of the needle film; A needle protruding from an upper end of the needle unit and inserted into an injection hole of the needle film on an outer surface of the needle film before scanning; A lower end having an open interior space, the main prior end of the needle film being secured to the needle hub; And a shield member which is provided at a lower end of the needle hub and into which the needle unit and the needle are inserted after being injected with the needle film, wherein the shield member is assembled to the lower end of the needle hub, And a second shield member assembled at a lower end of the first shield member and having an inner space having a rectangular cross section having a specific angle tilted with respect to a center axis of the rectangular cross section of the first shield member And the needle unit is stored after the needle unit is inserted into the second shield member, wherein the needle unit is stored in the second shield member.

The needle unit locking member includes an upper flange provided between the needle hub and the needle unit and protruding outwardly, a lower flange protruding outwardly to prevent detachment after movement to the upper portion, And an insertion groove to which the engaging protrusions formed on one side of the outer surface of the body of the needle unit are fitted and fitted.

The needle unit may include a needle body having an upper portion on which the needle is mounted and an engagement protrusion formed on an outer surface thereof and a needle body connected to a lower end of the needle body and having an upper width larger than a width of the needle body, And a needle unit lower end portion which is drawn into and fixed to the inside of the second shield member after the needle film is scanned.

A second object of the present invention is to provide a needle for a liquid injection needle unit, comprising: a needle film drawn into a blood vessel of a patient; A needle hub having an insertion hole which is an inner space penetrating from the upper end to the lower end, an upper inner flange formed on the upper inner circumferential surface, and an intermediate flange provided on one side of the intermediate portion; A needle unit which is fixed by a needle unit locking member to an insertion hole of the needle hub before scanning of the needle film and is inserted and removed after scanning of the needle film; A needle protruding from an upper end of the needle unit and inserted into an injection hole of the needle film on an outer surface of the needle film before scanning; A cover whose upper end is closed and whose lower end has an open inner space, the main prior end of the needle film being fixed to the needle hub; And a shield member which is provided at a lower end of the needle hub and has a lower end surface as a closed surface and into which the needle unit and the needle are inserted after being injected into the needle film, And a tilting ball for restricting movement of the needle unit at an upper side by tilting the needle unit tilted inside at a specific angle so as to restrain the upward movement of the needle unit. .

The needle unit locking member includes an upper flange provided between the needle hub and the needle unit and protruding outwardly, a lower flange protruding outwardly to prevent detachment after movement to the upper portion, Wherein the needle unit comprises a needle body having an upper portion on which the needle is mounted and an outer surface of which is provided with the engagement protrusion; And a needle unit lower end portion connected to the lower end and having a diameter larger than the diameter of the needle body and gradually decreasing in diameter toward the lower end and being drawn into the shield member and fixed to the shield member after the needle film is scanned .

According to one embodiment of the present invention, after the shape of the needle unit, the needle hub and the shield member is improved, and the needle film of the liquid injection needle unit is injected into the patient, the needle is attached with the shield member connected to the lower end of the needle hub The needle unit can be integrally inserted into the shield member, thereby preventing stick injuries and infection by the needle.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
FIG. 1A is a front view of a conventional liquid injection needle unit, FIG.
1B is a front view of a conventional liquid injection needle unit in a state in which the cover is detached,
1C is a state diagram schematically showing a state in which only a needle film is detached from a patient by injecting a liquid injection needle unit into the patient,
1D is a front view of a conventional liquid injection needle unit in a state in which a needle film is detached,
FIG. 2 is an exploded cross-sectional view of a stick dousing needle and a liquid infusion needle unit having an infecting function according to a first embodiment of the present invention,
3 is a cross-sectional view of the stick-in-the-needle and the infusion needle unit having an infecting function according to the first embodiment of the present invention,
4 is a sectional view taken along the line AA of Fig. 3,
5 is a sectional view taken along the line BB of Fig. 3,
6 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which the cover according to the first embodiment of the present invention is detached,
FIG. 7 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which the needle film according to the first embodiment of the present invention is detached; FIG.
FIG. 8 is a cross-sectional view of a sticking needle and an infusion needle unit having an infecting function in a state in which the needle unit locking member has been moved to the upper side according to the first embodiment of the present invention,
Fig. 9 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function, with the needle unit inserted into the shield member, according to the first embodiment of the present invention; Fig.
FIG. 10 is a cross-sectional view of the stick-in-the-needle with inverted upper and lower sides and the liquid-injection needle unit having the infection-
11 is an exploded cross-sectional view of a stick duck needle and a liquid infusion needle unit having an infecting function according to a second embodiment of the present invention,
12 is a cross-sectional view of a stick needle and a liquid injection needle unit having an infecting function according to a second embodiment of the present invention,
13 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which the cover according to the second embodiment of the present invention is detached,
Fig. 14 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which the needle film according to the second embodiment of the present invention is detached; Fig.
Fig. 15 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which the needle unit locking member is moved to the upper side according to the second embodiment of the present invention; Fig.
16 is a cross-sectional view of a sticking needle and a liquid infusion needle unit having an infecting function in a state in which a needle unit is inserted into a shield member according to a second embodiment of the present invention;
Fig. 17 is a cross-sectional view of the stick-in-the-neck with inverted upper and lower sides and the infusion needle unit having an infecting function in Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

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

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. 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, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, the structure and function of the stick-in-the-needle and infusion needle unit 100 having the infecting-prevention function according to an embodiment of the present invention will be described. In order to prevent infection with the stick sticking and sticking, the needle stick needle unit 100 having the stick duck and the infecting prevention function according to the embodiment of the present invention injects and desorbs the needle film 20 to the patient, And the needle unit 30 and the needle unit 30 can be pulled into the shield member 70 integrally and stored.

Hereinafter, the structure and functions of the stick-in-the-needle and infusion needle unit 100 having the infecting-prevention function according to the first embodiment of the present invention will be described. FIG. 2 is an exploded cross-sectional view of a stick needle and an infusion needle unit having an infecting function according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view of a stick dentifrice according to the first embodiment of the present invention and a fluid-injection needle unit having an infecting function. 4 is a sectional view taken along the line A-A in Fig. 3, and Fig. 5 is a sectional view taken along the line B-B in Fig.

As shown in FIGS. 2 to 3, the stick needle needle unit and the infusion needle unit having the infecting function according to the first embodiment of the present invention include a cover, a needle film 20, a needle unit 30, Member 50, needle hub 40, shield member 70, and the like.
As shown in FIG. 2, the cover 10 according to the first embodiment of the present invention has a lower end opened and a hollow hole formed therein, so that the needle film 20 is inserted into the needle film 20 and the needle 31 are stored therein to prevent sticking and infection.
2 and 3, a mounting groove 11 is formed on the inner surface of the lower end of the cover 10 so as to be mounted on an intermediate flange 42 formed in a circumferential direction on the outer surface of the stop of the needle hub 40 .

In the needle film 20 according to the first embodiment of the present invention, the needle 31 is inserted into the needle film 20 like the normal needle film 20, and the needle 31 and the needle film 20 are inserted into the patient After injection into the blood, only the needle film 20 can be detached. The needle film 20 has an expansion tube 21 and a film flange 23 at the lower end thereof and an injection hole 22 therein. Therefore, the tube portion 21 is inserted into the outer surface of the upper end of the needle unit 30 before being injected. After the needle film 20 is injected into the blood vessel of the patient, And is inserted and mounted in the expansion portion 21.
2 and 3, the needle unit 30 according to the first embodiment of the present invention includes a needle body 32 constituting a generally cylindrical or upper end and a needle unit lower end 34 ). ≪ / RTI > A needle 31 is inserted and fixed to the upper end of the needle unit 30. A hook 33 is formed at one side of the outer surface of the needle body 32 and has an internal space 36. At the lower end, The absorbing member 35 is provided.

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The needle unit lower end portion 34 connected to the lower end of the needle body 32 is configured such that the upper end side width is larger than the width of the needle body 32 and the width is gradually decreased toward the lower end side. When the insertion groove 52 of the needle unit locking member 50 according to the first embodiment of the present invention is fitted to the engaging jaw 33 as described later, the needle unit 30 is fixed in the needle hub When the needle unit locking member 50 is moved to the upper side after injecting the needle film 20, the restraint is released and the needle unit 30 is pulled into the shield member 70 at the lower end.
As shown in FIGS. 2 and 3, the needle hub 40 according to the first embodiment of the present invention has an overall tubular shape. An upper inner flange 41 protruding inward is formed at an upper end. And an intermediate flange 42 protruding from the outer side and the inner side is formed at one side.
The upper inner flange 41 serves as a stopper for preventing the detachment of the needle unit locking member 50 to the outside after the needle unit locking member 50 is moved to the upper side and the inward protruding end of the stop flange 42 is connected to the needle unit 30 to the upper side. The outwardly projecting end of the stop flange 42 also allows the mounting groove 11 of the cover 10 to be mounted and detachably attached to the cover 10, as mentioned above.

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2 and 3, the needle unit locking member 50 according to the first embodiment of the present invention has a generally tubular shape and is positioned inside the upper end of the needle hub 40 have. The upper end of the upper end of the needle unit locking member 50 according to the first embodiment of the present invention has an upper flange 51 protruding outwardly to move the needle unit locking member 50 to the upper side after the needle film 20 is scanned And the lower flange 53 is formed to prevent the outward departure by the upper inner flange 41 of the needle hub 40 after the upper side movement, as mentioned above.
An insertion groove 52 is formed on one side of the inner surface of the needle unit locking member 50 so that the engaging protrusion 33 formed on the outer surface of the needle body 32 is inserted into the insertion groove 52 before movement to the upper side, The needle unit 30 is restrained from moving downward.
The shield member 70 according to the first embodiment of the present invention is divided into a first shield member 71 at the upper end side and a second shield member 72 at the lower end side and has a structure that can be assembled with each other.

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As shown in FIG. 4, the first shield member 71 is assembled to the lower end of the needle hub 40, and the inner space has a rectangular cross-sectional shape. 4 and 5, the second shield member 72 is assembled to the lower end of the first shield member 71, and the inner space is defined by the center axis of the rectangular cross section of the first shield member 71 as a reference It can be seen that it has a rectangular cross section which is tilted at a specific angle. Therefore, the rectangular cross section of the inner space of the second shield member 72 has a specific angle-tilted reference with respect to the central axis of the rectangular cross section of the first shield member 71, and the lower end portion of the needle unit is gradually reduced in width The coupling surface of the first shield member 71 and the second shield member 72 serves as a latching jaw so that the needle unit enters the second shield member 72 and then moves to the upper side . An air injection unit is provided on one side of the lower end portion of the needle unit and on the lower closed surface of the second shield member 72 to absorb blood and the like generated when the needle film is scanned.

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Hereinafter, an operation method of the stick dentifrice according to the first embodiment of the present invention and a fluid-injection needle unit having an infection-preventing function will be described. 3, the needle unit 30 is inserted into the insertion hole 43 of the needle hub 40 by the needle unit locking member in the storage state before the needle film 20 is injected into the patient's blood vessel The mounting groove 11 of the cover 10 is mounted and fixed to the outside of the stop flange 42 of the needle hub 40 in a state in which the needle film 20 is inserted into the needle 31 It is possible to prevent sticking and infection from the needle 31 and the needle film 20.

In order to inject the needle film 20 into the patient, the user first removes the cover 10. FIG. 6 is a cross-sectional view of a stick-in and a liquid-injection needle unit having an anti-infection function in a state in which the cover according to the first embodiment of the present invention is detached. 6, in order to inject the needle film 20 of the needle stick needle unit 100 having the anti-infecting function according to the first embodiment of the present invention into the patient, first, the needle hub 40 The cover 10 mounted on the outer side of the stop flange 42 of the cover 10 is detached. In the state where the needle 31 and the needle film 20 are integrally drawn into the blood vessel of the patient and only the needle film 20 is injected into the blood vessel, the sticking and the infection prevention function according to the first embodiment of the present invention And the liquid injection needle unit 100 having the liquid injection needle unit 100 is removed.

FIG. 7 is a cross-sectional view of a stick-in needle and a liquid-injection needle unit having an anti-infection function in a state in which the needle film according to the first embodiment of the present invention is detached. 7 shows a cross-sectional view of the stick-in-the-stick sticking state and the infusion needle unit 100 having the infecting function by injecting the needle film 20 into the patient's blood vessel.

In the first embodiment of the present invention, after the needle film 20 is detached, that is, after using the liquid receiving needle unit 100, the needle unit 30 is moved to the lower side The needle unit locking member is moved to the upper side in order to drop the needle unit. 8 is a cross-sectional view of a sticking needle and an infusion needle unit having an infecting function in a state in which the needle unit locking member has been moved upward according to the first embodiment of the present invention. As shown in FIG. 8, when the needle unit locking member is moved to the upper side, the engaging jaw of the needle unit moves out of the insertion groove of the needle unit locking member, thereby releasing the movement restraint to the lower side. Thus, the needle unit is drawn into the inner space of the shield member at the lower end of the needle hub.

Fig. 9 shows a cross-sectional view of a sticking needle and an infusion needle unit having an infecting function in a state in which the needle unit is inserted into the shield member, according to the first embodiment of the present invention. 9, when the needle unit locking member is moved to the upper side, the needle unit is dropped to the lower side, and the lower end of the needle unit is drawn into the inner space of the second shield member 72.

As described above, it can be seen that the inner space of the second shield member 72 has a rectangular cross section having a specific angle tilted with respect to the central axis of the rectangular cross section of the first shield member 71. 10 is a cross-sectional view of the stick-in-the-needle having the inverted upper and lower sides and the infusion-prevention needle unit having the infecting-preventing function in Fig. 9. Accordingly, as shown in Fig. 10, The first shield member 71 and the second shield member 71 have a shape that is inclined at a specific angle with respect to the central axis of the rectangular cross section of the shield member 71 and the lower end portion of the needle unit has a shape gradually decreasing downwardly. The engagement surface of the first shield member 72 serves as a latching jaw, so that the movement of the needle unit into the second shield member 72 can be restrained. Therefore, after use, the needle unit 30 is drawn into the shield member 70 provided at the lower end of the needle hub 40, thereby preventing the sticking and infection.

Hereinafter, the configuration and functions of the stick duck needle and the liquid injection needle unit having the infecting prevention function according to the second embodiment of the present invention will be described. 11 is a disassembled cross-sectional view of a stick dentifrice according to a second embodiment of the present invention and an infusion needle unit having an infecting function. FIG. 12 is a cross-sectional view of a stick needle and a liquid injection needle unit having an anti-infection function according to a second embodiment of the present invention.

The sticking needle according to the second embodiment of the present invention and the liquid sending needle unit having the infecting prevention function are provided with the first shield member 71 and the second shield member 72 as compared with the first embodiment There is no need to be divided, and there is a difference that a tilt-away ball 74 is provided in the interior of the shield member, and a tear-off preventing protrusion 73 is formed on one side of the shield member.

In contrast to the first embodiment, the cross section of the lower end of the needle unit according to the first embodiment is rectangular, and the inner space cross section of the first shield member and the second shield member is rectangular, The lower end portion and the inner space of the shield member need not be limited to the rectangular cross section as in the first embodiment.

In addition, the construction of the cover, the needle film, the needle unit, the needle unit locking member, and the needle hub is the same as that of the aforementioned first embodiment.

When the needle unit locking member is moved to the upper side after scanning the needle film, movement restraint of the needle unit is released and falls to the lower side as in the first embodiment. The dropped needle unit is drawn in by the shield member, and the lower end of the needle unit is positioned on the lower side of the jaw-preventing jaw of the shield member.

The tilting ball located at the lower end side of the shield member is positioned between the inner surface of the shield member and the outer surface of the lower end of the needle unit so that the needle unit is tilted by a predetermined angle . Accordingly, the needle unit is tilted at a predetermined angle by the tilting ball, thereby restricting the upward movement of the needle unit. Therefore, after use, the needle body 30 and the needle 31 are inserted into the needle insertion unit 70 provided at the lower end of the body unit 40, thereby preventing the sticking and infection.

Hereinafter, a method of operating the stick duck needle and the infusion needle unit having the infecting prevention function according to the second embodiment of the present invention will be described. 12, the needle unit 30 is inserted into the insertion hole 43 of the needle hub 40 by the needle unit locking member in the storage state before the needle film 20 is injected into the patient's blood vessel The mounting groove 11 of the cover 10 is mounted and fixed to the outside of the stop flange 42 of the needle hub 40 in a state in which the needle film 20 is inserted into the needle 31 It is possible to prevent sticking and infection from the needle 31 and the needle film 20.

In order to inject the needle film 20 into the patient, the user first removes the cover 10. 13 is a cross-sectional view of a sticking needle and a fluid-injection needle unit having an infecting function in a state in which the cover according to the first embodiment of the present invention is detached. 13, in order to inject the needle film 20 of the needle stick needle unit 100 having the anti-infection function and the stick ducker according to the second embodiment of the present invention, the needle hub 40 The cover 10 mounted on the outer side of the stop flange 42 of the cover 10 is detached. In the state where the needle 31 and the needle film 20 are integrally drawn into the blood vessel of the patient and only the needle film 20 is injected into the blood vessel, the stick denture according to the second embodiment of the present invention and the infection- And the liquid injection needle unit 100 having the liquid injection needle unit 100 is removed.

FIG. 14 is a cross-sectional view of a sticking needle and a liquid-injection needle unit having an infection-preventing function in a state in which the needle film according to the first embodiment of the present invention is detached. That is, Fig. 14 shows a cross-sectional view of a sticky needle stick with a needle film 20 being inserted into a patient's blood vessel, and a syringe needle unit 100 having an infecting function.

In the second embodiment of the present invention, after the needle film 20 is detached, that is, after using the liquid receiving needle unit 100, the needle unit 30 is moved to the lower side The needle unit locking member is moved to the upper side in order to drop the needle unit. Fig. 15 is a cross-sectional view of a sticking needle and an infusion needle unit having an infecting function in a state in which the needle unit locking member has been moved to the upper side according to the second embodiment of the present invention. As shown in Fig. 15, when the needle unit locking member is moved to the upper side, the engaging jaw of the needle unit moves out of the insertion groove of the needle unit locking member, thereby releasing the movement restraint to the lower side. Thus, the needle unit is drawn into the inner space of the shield member at the lower end of the needle hub.

16 shows a cross-sectional view of a sticking needle and an infusion needle unit having an infecting function in a state in which a needle unit is inserted into a shield member, according to a second embodiment of the present invention. As shown in FIG. 16, when the needle unit locking member is moved to the upper side, the needle unit falls down to the lower side, and the lower end portion of the needle unit is drawn into the inner space below the jaw bottom to prevent separation of the shield member.

The tilting ball located at the lower end side of the shield member is positioned between the inner surface of the shield member and the outer surface of the lower end portion of the needle unit, The unit is tilted by a predetermined angle. Accordingly, as shown in Fig. 17, the needle unit is tilted at a predetermined angle by the tilting ball, thereby restricting the upward movement of the needle unit. Therefore, after use, the needle unit 30 is drawn into the shield member 70 provided at the lower end of the need hub 40, thereby preventing the sticking and infection.

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: Conventional liquid injection needle unit
10: cover
11: Mounting groove
20: Needle film
21:
22: injection hole
23: Film flange
30: Needle unit
31: Needle
32: Needle body
33: hanging jaw
34: Lower part of the needle unit
35: absorptive member
36 interior space
40: Needle hub
41: upper inner flange
42: Stop flange
43: insertion hole
50: Needle unit locking member
51: upper flange
52: insertion groove
53: Lower flange
60:
70: shield member
71: first shield member
72: second shield member
73: Leakage prevention jaw
74: tilting ball
100: Liquid injection needle unit with stick restraining function

Claims (5)

In the liquid injection needle unit,
A needle film introduced into the blood vessel of the patient;
A needle hub having an insertion hole which is an inner space penetrating from the upper end to the lower end, an upper inner flange formed on the upper inner circumferential surface, and an intermediate flange provided on one side of the intermediate portion;
A needle unit which is fixed by a needle unit locking member to an insertion hole of the needle hub before scanning of the needle film and is inserted and removed after scanning of the needle film;
A needle protruding from an upper end of the needle unit and inserted into an injection hole of the needle film on an outer surface of the needle film before scanning;
A lower end having an open interior space, the main prior end of the needle film being secured to the needle hub; And
And a shield member which is provided at a lower end of the needle hub and into which the needle unit and the needle are inserted after being injected into the needle film,
The shield member
A first shield member which is assembled at a lower end of the needle hub and has an internal space of a rectangular cross section and a second shield member which is assembled at a lower end of the first shield member, And a second shield member having a tilted rectangular cross section, wherein the needle unit is stored after being inserted into the second shield member.
The method according to claim 1,
The needle unit locking member includes:
A needle unit provided between the needle hub and the needle unit,
An upper flange protruding outwardly, a lower flange protruding outwardly to prevent detachment of the upper portion, and an insertion groove fitted and fitted in the engagement protrusion formed on one side of the outer surface of the body of the needle unit before being moved upward Wherein the needle has a stick-preventing function.
3. The method of claim 2,
The needle unit includes:
A needle body to which the needle is attached on an upper surface thereof and the engagement protrusion is formed on an outer surface thereof,
And a needle unit lower end connected to the lower end of the needle body and having an upper end width larger than the width of the needle body and gradually decreasing in width to the lower end and being drawn into the second shield member and fixed after the needle film is injected A needle for a liquid injection needle having a stick preventive function.
In the liquid injection needle unit,
A needle film introduced into the blood vessel of the patient;
A needle hub having an insertion hole which is an inner space penetrating from the upper end to the lower end, an upper inner flange formed on the upper inner circumferential surface, and an intermediate flange provided on one side of the intermediate portion;
A needle unit which is fixed by a needle unit locking member to an insertion hole of the needle hub before scanning of the needle film and is inserted and removed after scanning of the needle film;
A needle protruding from an upper end of the needle unit and inserted into an injection hole of the needle film on an outer surface of the needle film before scanning;
A cover whose upper end is closed and whose lower end has an open inner space, the main prior end of the needle film being fixed to the needle hub; And
And a shield member which is provided at a lower end of the needle hub and has a lower end surface as a closed surface and into which the needle unit and the needle are inserted after being injected into the needle film,
The shield member
And a tilting ball for restricting movement of the needle unit at an upper side by tilting the needle unit tilted inside at a specific angle. unit.
5. The method of claim 4,
The needle unit locking member includes:
A needle unit provided between the needle hub and the needle unit,
An upper flange protruding outwardly, a lower flange protruding outwardly to prevent detachment of the upper portion, and an insertion groove fitted and fitted in the engagement protrusion formed on one side of the outer surface of the body of the needle unit before being moved upward Respectively,
The needle unit includes:
A needle body to which the needle is attached on an upper surface thereof and the engagement protrusion is formed on an outer surface thereof,
And a needle unit lower end connected to the lower end of the needle body and having an upper end diameter larger than the diameter of the needle body and gradually decreasing in diameter toward the lower end and being drawn into the shield member and fixed to the shield member after the needle film is injected. Wherein the needle has a stick-preventing function.

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