KR101600562B1

KR101600562B1 - Antiparticle injector having stick injury preventing fuction

Info

Publication number: KR101600562B1
Application number: KR1020140085192A
Authority: KR
Inventors: 최근욱
Original assignee: (주)세인메덱스; 최근욱
Priority date: 2014-07-08
Filing date: 2014-07-08
Publication date: 2016-03-07
Also published as: KR20160005979A

Abstract

The present invention relates to a filter-type syringe having a stick preventive function. To a barrel having a cylindrical shape and having a barrel head formed on an upper surface thereof, a flange formed on a lower end thereof, and a filtration filter installed on one side of the upper end thereof; A needle unit having a needle body coupled to an upper end thereof, a needle body fixedly inserted into the barrel head and having a flow groove formed along a longitudinal direction at an outer surface thereof; A cover body having a tubular shape and a tapered portion provided at an upper end of the cover body and having an inflow hole for introducing a chemical solution therein; And a plunger inserted into the barrel and moved by a user to provide a suction force or a compressive force to draw a drug solution into the barrel or to discharge a drug solution stored in the barrel through the needle. To a filter type syringe having a stick preventive function.

Description

TECHNICAL FIELD [0001] The present invention relates to a filter-type injector having an anti-

The present invention relates to a filter-type syringe having a stick preventive function.

2. Description of the Related Art Generally, a disposable syringe used in a clinic or the like has a cylindrical barrel in which an injection liquid discharging portion is formed, a plunger so that the plunger can be moved inward along the longitudinal direction of the barrel, So as to provide a compressive force or a suction force while moving. A needle body having a needle body coupled to the needle at the outer side is detachably coupled to the injection liquid discharge portion and a needle protection cover is detachably coupled to the needle body so as to protect the needle in a completely wrapped state.

However, such a conventional disposable syringe has a risk that foreign substances may flow into the body when the drug solution is inhaled in various ampoules including a glass ampule during its use. Accordingly, in order to prevent such a danger, a filter type syringe having a filter or a filter is proposed.

The conventional filter type syringe has a structure in which a filter having a filtration function is mounted in a hub of a filter attachment type needle in the case of a filter attachment type syringe.

However, since the filter type syringe according to the related art has a structure in which a filter latching portion and a filter latching portion are additionally installed and fastened to assemble and fix the filter mounted inside the hub, the suction- And it is inconvenient to reassemble the needles for injection into the body.

In addition, the filter type syringe according to the related art has a disadvantage that it is necessary to maintain the respective disposal caps for the filter needle for inhalation of medicines and the needles for the human body. In the replacement process of the needles, And there was a possibility of contact with the body part.

1A shows a cross-sectional view of a conventional filter type syringe 1. Fig. 1B shows an exploded cross-sectional view of a conventional filter type syringe 1. 1A and 1B, the outer cover 10, the inner filter housing 2 with the filter 3 mounted thereon, and the needle 20 are joined in order and attached to the filter housing 2 It is understood that the filter type injector 1 capable of separating the insoluble matter from the chemical liquid 4 through the filter is disclosed.

However, in the filter type injector 1 according to the related art, since the filter 3 is configured to surround the injection needle 20 and the filtering part for filling the end of the filter 3 is formed, It is difficult to insert the filter 3 into a chemical solution container such as a glass ampule or a vial in a state where the filter 3 is attached to the injection needle and it is difficult to separate the filter portion from the chemical solution container even after the suction of the chemical solution is completed.

There is a problem that when the chemical liquid is sucked in the chemical liquid container such as a glass ampule or a vial, the liquid is sucked through the injection needle 21, the suction pressure is low and the chemical liquid can not be sucked easily.

Korea Patent Publication No. 2013-0109309 Korea Patent No. 0632342 Korean Patent No. 1354451 Korean Patent Publication No. 2014-0001800

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 the top end of the cover, The injection needle unit can be drawn into the plunger after the injection is completed, thereby preventing the stick sticking by the injection needle.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments with reference to the accompanying drawings.

An object of the present invention is to provide a filter type syringe having a cylindrical shape and having a barrel head formed on an upper surface thereof, a flange formed on a lower end thereof, and a filtration filter provided on one side of the upper end thereof; A needle unit having a needle body coupled to an upper end thereof, a needle body fixedly inserted into the barrel head and having a flow groove formed along a longitudinal direction at an outer surface thereof; A cover body having a tubular shape and a tapered portion provided at an upper end of the cover body and having an inflow hole for introducing a chemical solution therein; And a plunger inserted into the barrel and moved by a user to provide a suction force or a compressive force to draw a drug solution into the barrel or to discharge a drug solution stored in the barrel through the needle. Which is provided with a stick preventive function.

In the suction mode, the inlet hole of the cover and the position of the flow groove of the needle body are made to correspond to each other. When the plunger is pulled, the chemical liquid flows through the inlet hole, passes through the inlet hole and the flow groove, The liquid is filtered by the filter and is drawn into the barrel. In the injection mode, the cover is detached and the plunger is pushed to inject the liquid through the needle.

The inlet unit may further include an inflow preventing member provided between a lower outer surface of the needle unit and an inner surface of the barrel head to prevent the liquid medicine from being discharged to the flow channel in the injection mode.

The suction of the plunger head may include a cut-off membrane that can be cut by a specific force.

Further, after the injection of the chemical liquid is completed, the user inserts the needle unit into the plunger inner space by cutting the cutting membrane with the needle unit.

According to the embodiment of the present invention, the shape of the cover top is improved, the area of the filter membrane of the filter unit is widened to improve the filtration function, and after the injection liquid injection is completed, the needle unit can be drawn into the plunger, It is possible to prevent stick injuries caused by the needles.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be appreciated by those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention, All fall within the scope of the appended claims.

1A is a cross-sectional view of a conventional filter type syringe,
1B is an exploded cross-sectional view of a conventional filter type syringe,
FIG. 2 is an exploded perspective view of a filter-type syringe having a stick preventive function according to an embodiment of the present invention;
FIG. 3A is a perspective view of a cover, which is one example of a filter-type syringe having a stick-preventing function according to an embodiment of the present invention;
FIG. 3B is a bottom view of a cover which is a constitution of a filter-type syringe having a stick-preventing function according to an embodiment of the present invention;
4A is a perspective view of a needle unit, which is a constitution of a filter type syringe having a stick preventive function according to an embodiment of the present invention,
FIG. 4B is a cross-sectional view of a needle unit, which is a constitution of a filter-type syringe having a stick-restricting function according to an embodiment of the present invention;
FIG. 5 is a perspective view of a barrel which is an embodiment of a filter-type syringe having a stick-preventing function according to an embodiment of the present invention,
FIG. 6 is a perspective view of a plunger, which is a constitution of a filter-type syringe having a stick preventive function according to an embodiment of the present invention,
7A is a cross-sectional view of a filter-type syringe having a stick-preventing function according to an embodiment of the present invention in a state in which a chemical liquid is drawn,
FIG. 7B is a cross-sectional view of a filter-type syringe having a stick-in-groove function according to an embodiment of the present invention,
7C is a cross-sectional view of a filter-type syringe having a stick-in-jerk function according to an embodiment of the present invention in an injection mode,
7D shows a cross-sectional view of a filter-type syringe having a stick-in function in accordance with an embodiment of the present invention in a safe mode after the injection is completed.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings. Throughout the specification, when a part is connected to another part, it includes not only a case where it is directly connected but also a case where the other part is indirectly connected with another part in between. In addition, the inclusion of an element does not exclude other elements, but may include other elements, unless specifically stated otherwise.

<Configuration of Filter-Type Syringe Having Stick Anti-Malfunction Function>

Hereinafter, the configuration and function of the filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention will be described. 2 is an exploded perspective view of a filter type syringe 100 having a stick preventive function according to an embodiment of the present invention.

2, a filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention includes a cover 10, a scan needle unit 20, a barrel 30, and a plunger 40. [ As shown in FIG.

3A shows a perspective view of a cover 10 which is an embodiment of a filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention. FIG. 3B is a bottom view of the cover 10, which is an embodiment of the filter-type syringe 100 having a stick-preventing function according to an embodiment of the present invention.

3A and 3B, a cover 10 according to an exemplary embodiment of the present invention includes a top end data unit 13, a cover body 12, a needle insertion hole An inlet hole 14 into which the chemical liquid flows, and a fitting groove 11 formed in the lower portion so that the barrel head 31 can be inserted.

3A and 3B, the cover 10 according to the embodiment of the present invention is configured such that a tapered portion 13 having a pointed shape is formed on the upper side to facilitate insertion into a rubber-packed vial . The upper end of the cover 10 may be composed of a tapered portion 13, or may be configured in the form of a screw of a drill to facilitate insertion into a rubber-packed vial. At the upper end of the cover 10, there is provided an inflow hole 14 through which the chemical liquid can flow. The diameter of the fitting groove 11 formed at the lower end of the cover 10 coincides with the outer diameter of the barrel head 31 so that the barrel head 31 is inserted into the fitting groove 11 of the cover 10 and fixed .

4A is a perspective view of the needle unit 20, which is a constitution of a filter type injector 100 having a stick preventive function according to an embodiment of the present invention. 4B is a cross-sectional view of the scan needle unit 20, which is an example of a configuration of the filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention.

4A and 4B, a needle unit 20 according to an embodiment of the present invention includes a needle head 22, a projection 24, a needle body, and a needle head 22, A needle insertion groove 23 for inserting and fixing the needle 21 is formed. In addition, the outer diameter of the needle body coincides with the inner diameter of the barrel head 31, so that the needle unit 20 is fixedly inserted into the barrel head 31.

4A, a flow channel 25 is formed along one longitudinal side of the needle body of the needle unit 20 according to an embodiment of the present invention, and through the flow channel 25, The chemical liquid drawn through the inlet hole 14 of the cover 10 in the suction mode flows into the barrel 30 through the flow channel 25 of the needle body.

As described later, the inflow preventing member 32 and the filtration filter 34 are provided on the outer surface of the protruding portion 24 of the needle unit 20, and in the suction mode, the chemical solution flowing through the flow- In the injection mode, the filtered chemical solution stored in the inside of the vault is discharged through the needles without flowing into the flow groove 25. The inflow preventing member 32 may be constituted by a membrane in the form of a flat ring or may be constituted by a spherical shape having a fitting hole for fitting the protrusion 24 or a separate member for closing the flow groove 25 in the injection mode.

The filter type syringe 100 having a stick preventive function according to an embodiment of the present invention may include an insertion member (not shown) that can be moved to one side of the cover 10 instead of the inflow preventing member 32, In the suction mode, the flow channel 25 is opened to allow the chemical liquid drawn through the inlet hole 14 to flow into the inside of the channel through the flow channel 25 of the needle body. In the injection mode, 25 so that the chemical liquid can be discharged only through the needle 21 without flowing into the flow groove 25.

FIG. 5 is a perspective view of a barrel 30, which is an embodiment of a filter-type syringe 100 having a stick-preventing function according to an embodiment of the present invention. As shown in FIG. 5, the barrel 30, which is a constitution of the filter type syringe 100 having a stick preventive function according to an embodiment of the present invention, has a barrel head at its upper end like a normal barrel, A barrel flange 33 is formed on the barrel flange 33. As will be described later, inside the barrel head 31, there is provided a filtration filter 34 which is fixed by the filtration filter fixing protrusion 35. The chemical liquid is drawn through the inlet hole 14 of the cover 10 and introduced into the barrel 30 through the flow groove 25 of the needle body to be introduced into the filtration filter 34, The impurities are filtered and drawn into the inside.

FIG. 6 is a perspective view of a plunger 40, which is an embodiment of a filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention. 6, a plunger 40 according to an embodiment of the present invention includes a plunger head 41 at an upper end thereof and a plunger flange 42 at a lower end thereof as in a conventional plunger 40 And a disposing needle space 43 having a hollow shape penetrating the plunger head 41 and the plunger flange 42 is formed. 6, the plunger 40 according to the embodiment of the present invention has the needle space for disposal 43 and is provided inside the plunger head 41, as shown in Fig. 6, When the needle 21 and the needle unit 20 are moved to the lower end to incise the incision membrane after the user has completed the injection mode with the suction port 44 having the membrane, The needle 21 and the needle unit 20 can be stored in the first and second needle chambers 43 and 43 so that sticking can be prevented.

<Operation method>

Hereinafter, an operation method of the above-described filter type syringe 100 having the stick preventive function will be described. 7A is a cross-sectional view of a filter-type syringe 100 having a stick preventive function according to an embodiment of the present invention in a state in which a chemical liquid is drawn. 7B is a cross-sectional view of the filter-type syringe 100 having a stick-in-groove function according to an embodiment of the present invention in a state where the chemical liquid injection is completed.

7A, in the filter type syringe 100 having the stick duck function according to the embodiment of the present invention, the cover 10 is inserted through the fitting groove 11 of the cover 10 into the barrel head 31 The upper end of the cover 10 is inserted into the glass ampoule or the chemical liquid container, and the plunger 40 is pulled to suck the chemical liquid into the barrel. At this time, the inlet hole 14 of the cover 10 is positioned at the position corresponding to the flow groove 25 of the needle body.

The chemical liquid stored in the glass ampoule or the chemical liquid container flows into the inlet hole 14 of the cover 10 and the chemical liquid flowing through the inlet hole 14 flows into the cover 10, And flows into the inner space at the upper end of the barrel through the flow channel 25 formed in the needle unit 20, as shown in FIG. 7A. The introduced chemical liquid is filtered by the filtration filter 34 provided in the inside of the bin and drawn into the barrel 30.

7C shows a cross-sectional view of a filter-type syringe 100 having a stick-in function according to an embodiment of the present invention in an injection mode. When the introduction of the chemical liquid is completed, the cover 10 is detached and the plunger 40 is pushed as shown in Fig. 7C. When the user pushes the plunger 40, the injection liquid inside the barrel 30 is injected through the needle 21 to the patient. At this time, the injection liquid is discharged only through the needle 21 by the inflow preventing member 32.

7D shows a cross-sectional view of a filter-type syringe 100 having a stick-in function in accordance with an embodiment of the present invention in a safe mode after the injection is completed. 7D, when the injection of the injection liquid is completed, the user moves the needle unit 20 and the needle 21 integrally to the lower side. When the injection needle unit 20 and the needle 21 are moved to the lower side of the plunger head 20, It can be seen that the cutting membrane of the suction tube 44 provided in the portion 41 is cut and inserted into the disposal needle space 43 of the plunger 40. [ Therefore, after the injection is completed, the needle 21 can be stored in the disposal needle space 43, thereby preventing sticking.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. It is to be understood that such modified embodiments are within the scope of protection of the present invention as defined by the appended claims.

1: Conventional filter type syringe
2: Filter housing
3: Filter
10: cover
11: Fitting groove
12: Cover body
13:
14: inlet hole
15: Needle insertion ball
20: Needle unit
21: Needle
22: Needle head
23: Needle insertion groove
24:
25: Distribution home
30: Barrel
31: Barrel head
32:
33: Barrel flange
34: Filtration filter
35: filtration filter fixing projection
40: plunger
41: Plunger head
42: Plunger flange
43: Needle space for disposal
44:
100: Filter type syringe

Claims

In the filter type injector,
A barrel having a cylindrical shape and having a barrel head formed on an upper surface thereof, a flange formed at a lower end thereof, and a filtration filter installed at one side of the upper end;
A needle unit having a needle needle coupled to an upper end thereof, a needle body fixedly inserted into the barrel head and having a flow groove formed along a longitudinal direction at an outer surface thereof;
A cover body having a tubular shape and a tapered portion provided at an upper end of the cover body and having an inflow hole for introducing a chemical solution therein;
A plunger inserted into the barrel and moved by a user to provide a suction force or a compressive force to draw a drug solution into the barrel or to discharge a drug solution stored in the barrel through the needle; And
And a suction port provided at one side of the upper end of the plunger head and having a cut-off membrane that can be cut by a specific force,
Wherein after the injection of the chemical liquid is completed, the user inserts the needle unit into the disposal needle space of the plunger by cutting the cut-off membrane into the needle unit.

The method according to claim 1,
In the suction mode,
The inlet of the cover and the position of the flow channel of the needle unit are made to correspond to each other. When the plunger is pulled, the chemical liquid flows through the inlet hole, passes through the inlet hole and the flow channel, Is drawn into the barrel,
In injection mode,
Wherein the cover is detached, and the plunger is pushed to inject the chemical liquid through the injection needle.

The method according to claim 1,
Further comprising an inflow preventing member provided between a lower end outer surface of the needle unit and an inner surface of the barrel head to prevent the liquid medicine from being discharged to the flow groove in the injection mode. syringe.

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