WO2014168390A1

WO2014168390A1 - Syringe filter cap comprising exposure filter member

Info

Publication number: WO2014168390A1
Application number: PCT/KR2014/002983
Authority: WO
Inventors: 이정권
Original assignee: Lee Jung Kwon
Priority date: 2013-04-09
Filing date: 2014-04-07
Publication date: 2014-10-16
Also published as: KR101406262B1

Abstract

A syringe filter cap comprising an exposure filter member according to the present invention comprises: a body lengthily formed in the lengthwise direction and having an insertion space of which the front side and the rear side are opened, a needle of the syringe being inserted into the interior of the body; a filter member provided at the front end of the insertion space such that at least a part of the filter member is exposed to the outside and filtering an injection solution; and a sealing member having a shape corresponding to an end surface of the insertion space, provided at the inner side of the insertion space to shield the front side of the insertion space, and formed such that the needle of the syringe can pass therethrough.

Description

Syringe filter cap with exposed filter element

The present invention relates to a filter cap for a syringe mounted on a syringe to filter the injection liquid, and more particularly, to a filter cap for a syringe having excellent suction performance of the injection liquid is provided with at least a portion of the filter member exposed to the outside.

Injectable liquids, which are highly required for sealing according to their component characteristics or needs, are generally supplied in ampoules. In this case, the user breaks the head of the ampoule and inserts a needle of the syringe into the ampoule to inhale the injection solution.

However, since the ampoule has a glass material, fine glass fragments are generated in the process of breaking for use, which is then mixed with the injection solution, which is then administered to the human body along with the injection solution. Since this is harmful to the human body and difficult to discharge, it is necessary to filter the injection liquid when using the ampoule.

To this end, in general, a syringe with a built-in filter in the hub may be used, or a filter cap of a type that is separately mounted outside the needle of the syringe is often used.

In the case of using a syringe with a built-in filter in the hub as described above, the injection liquid sucked up into the injection liquid receiving portion located above the filter is filtered, but the injection liquid remaining inside the needle located under the filter does not pass through the filter. The effect of filtering is less.

In the case of filter needles, the use process is more complicated than the filter cap, and thus the filter cap having excellent usability is preferred.

However, the filter cap has a problem that it is difficult to effectively generate the negative pressure when inhaling the injection liquid with the syringe because the form is mounted separately on the outside of the syringe.

In addition, there is a problem that the injection solution is wasted because a large amount of the injection solution remains in the filter cap when the filter cap is separated after inhaling the injection solution. Especially when the injection is expensive, the cost loss is very large.

Therefore, there is a need for a method for solving such problems.

The present invention has been made in order to solve the above problems of the prior art, to provide a filter cap for a syringe that can effectively generate a negative pressure when injecting the injection liquid.

In addition, to provide a filter cap for the syringe that can minimize the waste of the injection.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Syringe filter cap with an exposure filter member of the present invention for achieving the above object is formed in the longitudinal direction, the inside of the needle is inserted into the syringe, the body is formed in the insertion space is opened, the front and rear, the outside It is provided at the front end of the insertion space to expose at least a portion, and formed in a shape corresponding to the cross section of the filter member and the insertion space for filtering the injection liquid is provided to shield the front of the insertion space inside the insertion space, And a sealing member in which the needle of the syringe is penetrated.

Here, the filter member is formed in a shape corresponding to the cross section of the insertion space may be inserted so that one surface is exposed to the front end of the insertion space.

In addition, the filter member may be formed with an insertion groove into which the needle end of the syringe is inserted.

In addition, the sealing member may be provided to contact the rear of the filter member.

In addition, the filter member may be provided so that at least a portion protrudes toward the front of the body.

In addition, a coupling protrusion is formed at the rear end of the filter member, and a coupling groove to which the coupling protrusion is coupled may be formed around the front end of the body.

In addition, at least a portion of the filter member may be inserted into the insertion space, and one or more suction holes may be formed around the body corresponding to the insertion position of the filter member.

The filter member may be detachably formed on the body, and a coupling step may be formed at the front end of the insertion space to limit the maximum penetration depth of the filter member when the filter member is inserted.

In addition, a narrow section having a cross section corresponding to the cross section of the needle of the syringe may be formed between the filter member and the sealing member of the entire length of the insertion space.

In addition, the body extends to the rear of the body, the inner side includes an extension in communication with the insertion space is formed an extension insertion space for inserting the needle connection portion, the inner side of the extension insertion space around the syringe needle connection portion Corresponding to the formed fixed step, a locking step may be formed to limit the maximum insertion depth of the syringe needle connecting portion.

In addition, a receiving space is formed therein to accommodate the body, it may further include a protective cover detachably provided on the outside of the body to surround the body circumference.

Syringe filter cap with an exposure filter member of the present invention for solving the above problems has the following effects.

First, since at least a portion of the filter member is directly exposed to the outside, it is possible to effectively generate a negative pressure by minimizing unnecessary space when injecting the injection liquid, there is an advantage that the filtration area of the injection liquid is increased.

Second, it is possible to effectively seal the end of the syringe needle has the advantage that the injection liquid is easy to inhale.

Third, even when the filter cap is separated by minimizing the space where the tip of the syringe needle is located, there is an advantage that the injection liquid can be minimized in the filter cap.

Fourth, since the syringe needle can be penetrated through the sealing member when combined with the syringe and can be combined, there is no need to accurately consider the coupling position of the syringe needle during production, there is an advantage that the coupling is fast.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view showing a state that the filter cap for the syringe according to the first embodiment of the present invention is coupled to the needle and the needle connecting portion of the syringe;

Figure 2 is a cross-sectional view showing a state that the filter cap for the syringe coupled to the needle and the needle connecting portion according to the first embodiment of the present invention;

3 is a cross-sectional view showing a state in which the protective cover is coupled to the body in the filter cap for the syringe according to the first embodiment of the present invention;

4 is a cross-sectional view showing a state inhaling the injection liquid with a syringe equipped with a filter cap for a syringe according to the first embodiment of the present invention;

5 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a second embodiment of the present invention;

6 is a perspective view showing the appearance of a filter cap for a syringe according to a third embodiment of the present invention;

7 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a third embodiment of the present invention;

8 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a fourth embodiment of the present invention;

9 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a fifth embodiment of the present invention;

10 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a sixth embodiment of the present invention;

11 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a seventh embodiment of the present invention; And

12 is a cross-sectional view showing the appearance of a filter cap for a syringe according to an eighth embodiment of the present invention.

<부호의 설명><Description of the code>

10: needle 20: needle connection

22: fixed step 50: protective cover

100: syringe cap 110: body

112: insertion space 120: extension portion

122: extension insertion space 124: locking step

130: filter member 140: sealing member

l: injection solution C: ampoule

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of this embodiment, the same name and the same reference numerals are used for the same configuration and additional description thereof will be omitted.

1 is a cross-sectional view showing a state that the filter cap 100 for the syringe according to the first embodiment of the present invention is coupled to the needle 10 and the needle connecting portion 20 of the syringe, Figure 2 is a first embodiment of the present invention Syringe filter cap 100 according to the example is a cross-sectional view showing a state coupled to the needle 10 and the needle connecting portion (20).

As shown in FIGS. 1 and 2, the syringe filter cap 100 includes a body 110, a filter member 130, and a sealing member 140.

Body 110 is formed long in the longitudinal direction, there is formed an insertion space 112, the front and back open so that the needle of the syringe can be inserted therein. Accordingly, the needle 10 of the syringe may be inserted through the rear of the insertion space (112).

In the present embodiment, the body 110 further includes an extension 120. Extension portion 120 extends to the rear of the body 110, the inner side is in communication with the insertion space 112 is formed an extension insertion space 122 into which the needle connecting portion 20 of the syringe is inserted. The extension insertion space 122 has a larger cross-sectional area than the insertion space 112 so as to correspond to the shape of the needle connecting portion 20. Accordingly, the syringe filter cap 100 of the present embodiment can be mounted to surround the needle 10 and the needle connecting portion 20 of the syringe.

In addition, in the present embodiment, the inside of the extension insertion space 122 corresponds to the fixed step 22 formed around the syringe needle connecting portion 20, the locking step 124 for limiting the maximum insertion depth of the syringe needle connecting portion 20 ) Is formed. When the syringe filter cap 100 is mounted on the syringe as shown in FIG. 2, the fixed step 22 is caught by the locking step 124, and the syringe can no longer be inserted into the syringe filter cap 100. There will be no.

However, unlike the present embodiment, the body 110 may not include the extension 120. That is, the body 110 may be formed to be mounted only on the outside of the needle 10.

And unlike the present embodiment, the front end of the body 110 may be formed to be inclined. In this case, there is an advantage in that the injection filter cap 100 for the syringe can be sucked into the ampoule in a diagonal direction effectively.

The filter member 130 is provided at the front end of the insertion space so that at least a portion thereof is exposed to the outside, and serves to filter the injection liquid. That is, the filter member 130 is provided at the forefront of the insertion space 112, and is provided such that at least a partial area is exposed to the outside. Accordingly, since the extra space of the insertion space 112 does not remain in front of the filter member 130, the injection liquid may be sucked more effectively.

In addition, the filter member 130 has a permeability such that gas and liquid are permeable and fine glass chips of the ampoule are not permeated, and thus, a material other than the injection liquid can be filtered. The filter member 130 may be formed of various materials in consideration of such characteristics, which are obvious to those skilled in the art, and thus description thereof will be omitted.

In the present embodiment, the filter member 130 is formed in a shape corresponding to the cross section of the insertion space 112 is inserted so that one surface is exposed to the front end of the insertion space (112).

The sealing member 140 is formed in a shape corresponding to the cross section of the insertion space 112 and is provided inside the insertion space 112. At this time, the sealing member 140 is provided to shield the front from the position provided in the insertion space 112, the needle 10 of the syringe is formed to penetrate.

That is, the needle 10 of the syringe can be inserted into the sealing member 140 to penetrate through it. Even when the needle 10 of the syringe penetrates, the front of the insertion space 112 is also shielded. As a result, the needle 10 of the syringe penetrates the sealing member 140 so that the space between the filter member 130 and the sealing member 140 may be closed. In addition, the tip 12 of the needle 10 is located between the filter member 130 and the sealing member 140.

In this case, as the sealing member 140 is formed closer to the separation distance of the filter member 130, the volume of the space between the filter member 130 and the sealing member 140 is reduced, so that the injection liquid suction efficiency will increase.

As described above, the syringe filter cap 100 according to the present embodiment is capable of penetrating and penetrating the syringe needle 10 to the sealing member 140 when coupled with the syringe, so that the coupling position of the syringe needle 10 is produced during production. It does not need to be considered precisely and has the advantage of fast joining.

Meanwhile, the sealing member 140 may serve to seal the space as well as to fix the needle 10 of the syringe not to move. The sealing member 140 may be formed of various materials in consideration of the exponential force and the fixing force of the needle 10.

In addition, although the sealing member 140 is penetrated by the needle 10 of the syringe in this embodiment, the through hole may be formed in advance in the sealing member 140.

3 is a cross-sectional view showing a state in which the protective cover 50 is coupled to the body 110 in the filter cap 100 for a syringe according to the first embodiment of the present invention.

As shown in FIG. 3, the filter cap 100 for the syringe may further include a protective cover 50.

The protective cover 50 is provided with a receiving space in which the body 110 is accommodated therein, and is detachably provided at an outer side of the body 110 to surround the body 110. When the protective cover 50 is provided as described above, there is an advantage in that precontamination of the body 110 and the filter member 130 can be prevented.

Figure 4 is a cross-sectional view showing a state inhaling the injection liquid (l) with a syringe equipped with a filter cap for a syringe according to the first embodiment of the present invention.

As shown in FIG. 4, the filter cap for the syringe is mounted in the syringe and then injected into the injection liquid l contained in the ampoule C, and the piston of the syringe is moved backwards to suck the injection liquid l. Can be.

In the present embodiment, the filter member 130 is provided in a state exposed to the front end of the body 110, the end 12 of the needle 10 is positioned in a state close to the filter member 130, which is a sealing member ( Rear is shielded by 140). Therefore, it is possible to effectively generate a negative pressure when injecting the injection (l) so that the injection (l) can be quickly sucked into the hollow of the needle 10 without the bypass path.

As described above, in the syringe filter cap of the present invention, at least a part of the filter member 130 is directly exposed to the outside, and can effectively seal the end 12 of the syringe needle 10, and thus, when injecting the injection liquid l. It can effectively generate sound pressure by minimizing unnecessary space. In addition, there is an advantage that the filtration area of the injection solution increases due to the external exposure of the filter member 130. And when the sealing member 140 is provided close to the filter member 130, even when the filter cap is removed by minimizing the space in which the tip 12 of the syringe needle 10 is located, the injection liquid l is applied to the filter cap. The residue can be minimized.

Hereinafter, other embodiments of the present invention will be described in turn.

Figure 5 is a cross-sectional view showing the state of the filter cap for a syringe according to a second embodiment of the present invention.

As shown in FIG. 5, the filter cap for the syringe according to the second embodiment of the present invention is formed in the same shape as that of the first embodiment described above, but the filter member 230 has the needle 10 end of the syringe. An insertion groove into which the 12 is inserted is formed, and the sealing member 240 is provided to be in contact with the rear of the filter member 230.

As described above, in the second embodiment of the present invention, since the needle 12 of the syringe 10 is inserted into the filter member 230 and the sealing member 240 is in direct contact with the filter member 230, the injection liquid may remain. The space can be removed completely. That is, it maximizes the generation of negative pressure when injecting the injection liquid, there is an advantage that the injection liquid can be directly sucked into the hollow of the needle 10 from the filter member 230.

Figure 6 is a perspective view showing the state of the filter cap for the syringe according to the third embodiment of the present invention, Figure 7 is a cross-sectional view showing the state of the filter cap for the syringe according to the third embodiment of the present invention.

6 and 7, the filter cap for the syringe according to the third embodiment of the present invention is provided such that the filter member 330 protrudes forward of the body 310. A coupling protrusion 332 is formed at the rear end of the filter member 330, and a coupling groove 311 to which the coupling protrusion 332 is coupled is formed around the front end of the body 310.

In the present embodiment, the filter member 330 can be more firmly coupled to the body 310 by the coupling structure of the coupling protrusion 332 and the coupling groove 311. In addition, since the filter member 330 protrudes toward the front of the body 310, the injection liquid can be sucked from the front surface as well as the side surface as shown in FIG. 7, thereby increasing the filtration area.

That is, the filter cap for the syringe according to the present invention may at least partially protrude toward the front of the body 310 as in the present embodiment, and in this case may increase the filtration area.

8 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a fourth embodiment of the present invention.

As shown in FIG. 8, the filter cap for the syringe according to the fourth embodiment of the present invention has a form in which the filter member 430 is inserted into the insertion space 112, and corresponds to the insertion position of the filter member 430. At least one suction hole 411 is formed around the body 410. That is, in the present embodiment, a predetermined area of the side surface of the filter member 430 is exposed to the outside by the suction hole 411 of the body 410, thereby increasing the filtration area as in the above-described third embodiment.

9 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a fifth embodiment of the present invention.

As shown in Figure 9, the filter cap for the syringe according to the fifth embodiment of the present invention, the filter member 530 is formed detachably on the body 510, the filter member 530 in the front end of the insertion space Coupling step 511 is formed to limit the maximum penetration depth of the filter member 530 when the insertion. In this case there is an advantage that the filter cap for the syringe can be reused by replacing the filter member 530.

In addition, in the present embodiment, the filter member 530 is formed with an insertion groove into which the end 12 of the needle 10 is inserted. Thus, the above-described features of the embodiments may be applied to each other.

10 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a sixth embodiment of the present invention.

As shown in FIG. 10, the filter cap for the syringe according to the sixth embodiment of the present invention includes the syringe needle 10 between the filter member 630 and the sealing member 640 of the entire length of the insertion space 612. A narrow section 614 having a cross section corresponding to the cross section is formed.

That is, the end 12 of the needle 10 is inserted into the narrow section 614 in close contact with the side wall, whereby the narrow section 614 and the hollow of the needle 10 communicate with each other in a straight line to move the injection solution. The route can be reasonably formed and the inhalation efficiency of the injection can be further increased.

11 is a cross-sectional view showing the appearance of a filter cap for a syringe according to a seventh embodiment of the present invention.

As shown in FIG. 11, in the filter cap for a syringe according to the seventh embodiment of the present invention, the body 710 includes a first body part 710a and a second body part 710b. That is, the body 710 is separated into two parts, a first body part 710a having the filter member 730 and the sealing member 740 and a second body part 710b at the rear thereof, Can be combined.

That is, the first body portion 710a may be separately modularized for easy production, and thus the yield may be greatly increased.

As shown in Figure 12, the filter cap for the syringe according to the eighth embodiment of the present invention is formed so that the front cross-sectional area of the filter member 830 gradually decreases. Accordingly, the central portion of the filter member 830 is formed to protrude, and the circumference of the protruding central portion has an obliquely inclined shape.

In this case, by inclining the filter cap for the syringe in an inclined state of the ampoule, the inclined circumferential portion of the filter member 830 may be in surface contact with the wall of the ampoule, thereby easily injecting the injection liquid.

As described above, a preferred embodiment according to the present invention has been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

Claims

It is formed long in the longitudinal direction, the inside of the needle is inserted into the syringe, the body is formed with an insertion space open front and rear;

A filter member provided at a front end of the insertion space to expose at least a portion of the outside and to filter the injection liquid; And

A sealing member formed in a shape corresponding to a cross section of the insertion space to shield the front of the insertion space inside the insertion space and having a needle of the syringe penetrating therethrough;

Filter cap for a syringe comprising a.
The method of claim 1,

The filter member,

A filter cap for a syringe which is formed in a shape corresponding to a cross section of the insertion space and is inserted to expose one surface in front of the insertion space.
The method of claim 1,

The filter member has a filter cap for a syringe formed with an insertion groove into which the needle end of the syringe is inserted.
The method of claim 3,

The sealing member is a syringe filter cap provided to be in contact with the rear of the filter member.
The method of claim 1,

The filter member is a syringe cap for at least part is provided to protrude toward the front of the body.
The method of claim 5,

A coupling protrusion is formed at the rear end of the filter member,

Filter cap for the syringe formed with a coupling groove is coupled to the coupling protrusion around the front end of the body.
The method of claim 1,

The filter member is at least partially inserted into the insertion space,

One or more suction hole filter caps formed around the body corresponding to the insertion position of the filter member.
The method of claim 1,

The filter member is formed detachably on the body, the front end of the insertion space filter cap for the syringe formed with a coupling step for limiting the maximum penetration depth of the filter member when the filter member is inserted.
The method of claim 1,

A filter cap for a syringe having a narrow section having a cross section corresponding to the cross section of the needle of the syringe between the filter member and the sealing member of the entire length of the insertion space.
The method of claim 1,

The body extends to the rear of the body, the inner side includes an extension in communication with the insertion space is formed an extension insertion space for inserting the needle connection portion of the syringe,

The inner side of the extension insertion space corresponding to the fixed step formed around the syringe needle connecting portion, the filter cap for the syringe formed a locking step for limiting the maximum insertion depth of the syringe needle connecting portion.
The method of claim 1,

The filter cap for the syringe further includes a protective cover is formed in the receiving space is accommodated in the body, the protective cover is detachably provided on the outside of the body to surround the body.