KR102382231B1 - A syringe tip complex with integrally a filter tube and a needle container tube - Google Patents

Abstract

The present invention relates to a syringe tip complex in which a filter tube and a needle storage tube are integrally provided, and more particularly, a filter tube for filling a chemical solution having a built-in filter that blocks the inflow of foreign substances when filling a chemical solution with a syringe, and a chemical solution It is equipped with a syringe that has been filled and is equipped with an injection needle storage tube that stores the injection needle for administering the chemical into the human body. It relates to a syringe tip complex having a structure that can be

Description

A syringe tip complex with integrally a filter tube and a needle storage tube {A syringe tip complex with integrally a filter tube and a needle container tube}

The present invention relates to a syringe tip complex in which a filter tube and a needle storage tube are integrally provided, and more particularly, a filter tube for filling a chemical solution having a built-in filter that blocks the inflow of foreign substances when filling a chemical solution with a syringe, and a chemical solution The injection needle storage tube is integrated with the syringe that is mounted on the filled syringe and stores the injection needle for administering the chemical solution into the human body. It relates to a syringe tip complex having a structure that can prevent side effects caused by applying excessive force to a syringe to increase the syringe injection pressure when injecting a drug into a patient with an installed injection needle.

In general, a syringe is a medical device that injects a chemical solution into the body of an organism. Most of the drug inhaled into the syringe is stored and distributed in a glass ampoule, and the ampoule is opened and filled in the syringe when used.

However, in the process of opening the glass ampoule, fine glass fragments may be generated, and the generated fine glass fragments can be mixed with the chemical and filled with a syringe, and the glass fragments contained in the process of injecting the medicinal solution into the body are also transferred to the body. can be imported. In particular, when microscopic glass fragments are injected into blood vessels, they can move to various locations in the body along the blood vessels and cause damage, which can cause serious side effects.

In order to solve such a problem, a filter syringe capable of filtering out foreign substances contained in a chemical solution has recently been used. The use of filter syringes is gradually increasing due to the advantage of being able to filter glass fragments and rubber fragments unintentionally included in the chemical solution by using a filter in the process of inhaling or injecting the chemical solution.

A conventional filter syringe is divided into a syringe of filtering the chemical solution when the syringe is inhaled, and a syringe of the method of filtering the chemical solution during the injection of the chemical solution sucked into the syringe into the body.

However, the conventional filter syringe has the following problems. First, the filter syringe that filters the chemical solution when sucking the chemical solution with a syringe causes the inconvenience of inevitably having to change the needle after inhaling the chemical solution. In this case, unnecessary time is required and secondary infection occurs in the needle replacement process or it takes time, so it cannot be used in emergency situations.

In addition, the filter syringe of a method of filtering the drug solution during injection into the body has the convenience of not needing to replace the needle after inhaling the drug, but the pressure delivered to the hand during injection is higher than that of a general injection needle. Accordingly, there is a problem in that unnecessary force is added while the needle is inserted into the body to damage the affected part.

Korean Patent Application Laid-Open No. 10-2016-0096405 (published on August 16, 2016; hereinafter referred to as 'Prior Document 1') proposes a filter tip for a syringe capable of filtering foreign substances in a chemical solution. In the preceding document 1, the needle coupling tube is coupled to the coupling hub of the needle, and a porous filter is installed on the end side of the needle coupling tube, but the needle end is inserted so that the chemical solution is sucked through the needle through the porous filter. did

However, in Prior Document 1, in the process of inserting the injection needle into the porous filter, fragments of the porous filter may be internalized, and the chemical liquid is buried on the outer surface of the injection needle. can cause

Korean Patent Registration No. 10-2021562 (registered on Sep. 6, 2019; hereinafter referred to as 'Prior Document 2') proposes a branched tube type filter syringe, and a method for filtering and injecting a chemical solution using the same. In the prior document 2, a needle coupling part (trunk spigot) for coupling a conventional syringe needle to the front of the syringe is disposed coaxially with the syringe, and a filter tube coupling part (trunk spigot) is additionally intersected with the needle coupling part at a predetermined angle. ) was formed to suggest a structure in which the filter tube (branch type syringe cylinder) is coupled. Prior Document 2 having such a structure prevents the chemical solution from being deposited on the needle during the chemical solution filling process by filling the chemical solution through the filter tube coupling part and injecting it through the injection needle coupling part when injecting the human body.

The prior document 2 has a structure that can prevent the chemical solution from sticking to the injection needle when filling the chemical solution, but is inconvenient in storage because the injection needle and the filter tube must be provided respectively. In addition, since the filled chemical solution is discharged when the filter tube is removed, a syringe is injected into the human body while the filter tube is mounted, and there is an inherent inconvenience of being forced by the filter tube in the process of injecting the chemical solution.

Korean Patent Laid-Open Patent No. 10-2016-0096405 (published on Aug. 16, 2016; hereinafter referred to as 'Prior Document 1') is a filter tip for a syringe that can filter foreign substances in the drug solution. Korean Patent Registration No. 10-2021562 (Registered on Sep. 6, 2019; hereinafter referred to as 'Prior Document 2') is a branched tube type filter syringe, and a method for filtering and injecting a chemical solution using the same

The syringe tip complex provided integrally with the filter tube and the needle storage tube of the present invention for solving the problems of the prior art as described above,

The needle is integrally formed in the filter tube with a built-in filter to improve the convenience of storage and use, and it is possible to block foreign substances from entering the syringe, and to prevent the chemical solution from sticking to the needle during the filling process of the syringe. can

In addition, when injecting into the human body, other general injection needles are used, so injection is possible without the injecting medical personnel applying excessive pressure to the syringe. The purpose is to provide a device that makes this possible.

Another object of the present invention is to provide a device that includes a plurality of suction lines of a filter tube so that suction is performed sufficiently through the other even if one of them is blocked by foreign substances.

The syringe tip complex provided integrally with the filter tube and the needle storage tube of the present invention for solving the above problems,

In the syringe tip complex that is coupled to the front end of the syringe and fills the syringe by sucking the chemical solution stored in the storage container, the suction pipe part for sucking the chemical solution from the front end is formed therein, and the suction pipe part is continuously formed and coupled to the rear end A filter tube comprising: a pipe coupling part communicating the front end of the syringe with the suction flow path; and a filter installed inside the suction pipe part to filter out foreign substances in the chemical; The front end is closed and the rear end is formed with a storage passage having an expanding tube portion, the storage tube being in close contact with the syringe coupling portion of the injection needle to be built-in and detachably fixed and supported; may be integrally configured.

The filter tube may include a plurality of suction pipe portions to suck the chemical solution through a plurality of suction passages, and the plurality of suction passages may be joined at the pipe coupling unit.

In addition, the filter tube and the needle storage tube are formed in a single composite tube, the suction flow path is formed in the interior of the composite tube, the suction flow path is a single suction flow passage from the front end to the rear end, or a plurality of front end open the suction port of the plurality of suction ports formed long in the longitudinal direction, and then join at the rear to communicate with the coupling port of the rear end pipe coupling part; A storage flow path with a closed front end is formed on one side of the suction flow path inside the composite tube so that the injection needle is embedded.

In addition, the surface of the rear end of the storage passage may be configured to form a step difference from the surface of the rear end of the suction passage.

In addition, the filter may be installed on the suction passage inside the suction pipe, and an extended collecting groove may be formed on the inner wall surface of the front side continuous with the filter to collect the sucked foreign substances.

In addition, the filter tube is configured to be detached rearwardly by separating the filter tube from the front and rear based on the part where the built-in filter is located in the suction passage, or the part where the filter is located and the part where the collecting groove is formed as one module so that it can be detached laterally configurable.

In addition, a front end of the suction pipe portion of the filter tube is further provided with a front end cap having a through hole in the center, and a filter is interposed between the front end cap and the suction pipe portion to separate foreign substances contained in the sucked chemical solution.

The syringe tip complex provided integrally with the filter tube and the needle storage tube of the present invention by the above solution means,

It is possible to provide convenience in storage and handling by providing a filter tube for sucking the chemical from the storage container and filling it with a syringe, and a needle for injecting the filled syringe into the human body.

In addition, the suction flow path of the filter tube is composed of a plurality of channels, so even if one side is closed by foreign substances or the chemical solution permeability is low, the chemical solution can be smoothly sucked from the other suction flow path. can be done easily.

In addition, it is possible to provide a useful device capable of minimizing the foreign matter blocking the filter by forming a collecting groove in the front part of the filter to collect foreign substances introduced due to a temporary pressure drop.

1A and 1B are schematic views showing a syringe tip composite according to an embodiment of the present invention.
2A and 2B are cross-sectional views of a filter tube having a single or a plurality of suction passages in the longitudinal direction according to the present invention.
2C and 2D are various cross-sectional cross-sectional views of a filter tube having a single or a plurality of suction passages according to an embodiment of the present invention.
Figure 2e is a cross-sectional view showing a separation type filter tube according to an embodiment of the present invention.
3A and 3B are longitudinal cross-sectional views showing a structure form of a single storage tube and a structure in which a filter tube and a storage tube are integrally formed according to an embodiment of the present invention.
3c and 3d are cross-sectional views AA illustrating a form in which a filter tube and a storage tube are integrally formed according to an embodiment of the present invention.
Figure 4a and Figure 4b is a schematic view showing a composite tube according to an embodiment of the present invention.
5 is a schematic cross-sectional view showing a composite tube having a step according to the present invention.
6A to 6C are longitudinal cross-sectional views and BB cross-sectional views illustrating a filter tube having a collecting groove formed therein according to the present invention.
7A and 7B are cross-sectional views showing a filter tube in which a filter mounting side groove is formed according to the present invention.
8A and 8B are cross-sectional views illustrating a front end portion of a filter tube 20 according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail through preferred embodiments. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, it is provided so that the content introduced herein may be thorough and complete, and that the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

1A and 1B are schematic views showing a syringe tip composite according to an embodiment of the present invention.

As shown, the syringe tip complex 10 of the present invention includes a filter tube 20 for filling the drug solution of the storage container with a syringe, and an injection needle 70 for injecting the drug filled in the syringe 60 into the human body. The storage tube 30 for storing is provided as one set without the need for separate preparation by configuring the storage tube 30 integrally as shown in FIG. 1A or separating it as shown in FIG. can do.

When each configuration is described in more detail, the filter tube 20 includes a suction pipe portion 21 having a suction passage 24 for sucking a chemical solution, and is continuously formed on the rear end of the suction pipe to be coupled with the front end of the syringe 60 . It is composed of a pipe coupling part 22 made of, and a filter 23 installed in the suction pipe part.

As shown in FIG. 2A , the suction pipe part 21 of the filter tube 20 has a suction flow path 24 formed therein, and the suction flow path 24 has a suction port 211 whose front end is opened to the outside. and is formed long from the suction port to the coupling port 221 of the tube coupling part of the rear end to suck and move the chemical solution from the front end. A filter 23 is mounted on the suction passage 24 so that the inhaled chemical solution passes through the filter and proceeds backward. In this process, foreign substances contained in the chemical are filtered by the filter, and only the chemical solution from which the foreign substances have been removed is moved to the rear.

Here, the filter 23 is disposed on the suction flow path 24, or when suction pressure is generated by partially extending the suction flow path and placing the filter in the expanded portion, the step formed by the expansion supports the filter to position the filter It may be provided in a structure that prevents movement. In addition, it may be configured in the form of a stopper including a filter or a membrane filter in the front portion of the suction passage, and as a material, it is generally preferable to use a commercially available material that can filter out foreign substances when inhaling the syringe chemical.

The tube coupling portion 22 of the filter tube 20 is disposed at the rear end of the filter tube 20 and a coupling hole 221 having a diameter larger than the diameter of the suction passage 24 on the front side is formed. An auxiliary tip to which the front end of the syringe 60 is mounted directly or to the front end of the syringe is detachably coupled to the coupling port 221 of the tube coupling part, and a step is formed between the coupling port portion and the inner suction flow path and inserted into the coupling member. It is possible to limit the penetration depth of the front end of the syringe.

The suction pipe part 21 and the pipe coupling part 22 communicate with an internal flow path, so that the chemical liquid sucked from the front end is moved to the pipe coupling part through the suction pipe part, and the inside of the syringe coupled to the pipe coupling part is filled.

The present invention may include a plurality of suction pipe portions of the filter tube.

Figure 2b is an embodiment showing the form in which the suction pipe portion 21 of the filter tube 20 is composed of two. As shown, it has two suction pipe parts 21 for sucking the chemical, and each filter 23 is installed on the suction flow path 24 in each suction pipe part, so that the chemical solution sucked in each suction flow path is filtered through the filter 23 ) through which foreign substances can be filtered. These two suction passages 24 are joined to one at the rear end of the tube coupling portion 22, and communicate with one coupling port 221 at the rear end, and supply a chemical solution to a syringe coupled to the coupling port. When the two suction passages 24 are formed as described above, foreign substances contained in the chemical solution to be sucked are filtered out by the filter 23, and even if either suction flow path is blocked, suction of the chemical solution through the other suction flow path is Since it can be made, it is possible to stably fill the syringe with the chemical solution. The suction pipe part 21 may be provided in a form in which three to four are connected in parallel other than the two shown in parallel arrangement.

In addition, a tube coupling portion 22 is continuously formed at the rear end of the plurality of suction tube portions 21 . In addition to coupling with the front end of the syringe, the tube coupling part 22 merges each straight suction flow path 24 in a plurality of suction pipe parts arranged in parallel into one to communicate with the coupling port 221 opened at the rear end. is formed Therefore, the chemical liquid sucked through the suction flow path 24 in each suction pipe 21 is merged into one flow path within the pipe coupling part 22 and then moved to the syringe mounted on the pipe coupling part.

In addition, as shown in FIGS. 2C and 2D , the two suction pipe parts 21 may have a cocoon-shaped cross-section or may be provided in a form in which a suction passage is formed in one circle or an ellipse.

In addition, the suction pipe portion may be provided in a form in which one suction flow path is included, and each suction flow path is configured separately.

As shown in FIG. 2E , the suction pipe part 21 and the pipe coupling part constituting the filter tube 20 may be provided in a separated form. In the case of providing the separation type as described above, the diameter of the suction passage 24 can be expanded to one side of the separation cross section so that the filter 23 can be introduced, thereby facilitating processing. In addition, it is preferable to improve watertightness by interposing a rubber packing 50 in the coupling portion. The coupling structure of the filter tube separated in this way can be provided in various known forms.

Next, the storage tube 30 is a tube for storing the injection needle 70 coupled to the front end of the syringe.

As shown in Fig. 3a, the storage tube 30 is closed at the front end and the storage passage 31 is formed at the rear end having an expanding tube 311 for placing the syringe coupling part of the injection needle. That is, the injection needle 70 is composed of a needle portion and a main coupling portion that is a portion coupled to the front end of the syringe while supporting the needle portion. It is stored and built-in so that the syringe coupling part is arranged in the expansion tube part 311 part. In use, the syringe 60 is coupled to the syringe coupling part of the injection needle in a state in which the injection needle 70 is embedded in the storage tube 30, and then the syringe is pulled back to remove the injection needle from the storage passage.

At this time, the expansion tube portion 311 of the storage passage 31 may provide a temporary fixing force by pressing in close contact with the syringe coupling portion of the needle or by being caught by a shallow locking jaw.

The storage tube 30 is horizontally arranged on one side of the filter tube as shown in plan and cross-sectional views in FIGS. 3B and 3C to form an integral body such that the suction passage 24 and the storage passage 31 are arranged in parallel, or As shown in FIG. 3D , the two suction passages 24 and the storage passage 31 may be provided in a form in which they are arranged in bundles.

The filter tube and the storage tube may all be formed in the composite tube 11 which is a single tube.

As shown in Fig. 4a, the composite tube 11 has a single suction flow path 24 that communicates from one suction port 211 opened at the front end to the coupling port 221 of the rear end pipe coupling part, and the suction Adjacent to the flow path 24, the front end may be provided in a form that is closed and the rear end is composed of a storage flow path 31 that is in communication.

In addition, as shown in Figure 4b, the suction flow path 24 in the composite tube 11 is formed with two suction ports 211 at the front end and one coupling port 221 at the rear end, and the rear side of the built-in filter. The two suction passages may be provided in the form of being merged into one suction passage and communicating with the coupling port. Here, the composite tube 11 may have a triangular cross section in addition to the circular cross section shown so that two suction passages and one storage passage are arranged in a triangular shape. Of course, in the case of arranging four flow paths, it is possible to optimize the cross-sectional area of the composite tube by forming a rectangular cross-section.

5, in the form of the compound tube 11, the rear ends of the storage passage 31 and the suction passage 24 are formed to have a step difference with each other, so that when the chemical is inhaled and when the chemical is injected into the body, after the compound tube It is possible to easily determine the position of coupling the syringe in the cross section. That is, the rear end face on which the coupling hole 221 of the suction passage 24 is formed is protruded to the rear, and the rear end surface on which the expansion pipe part 311 of the storage passage 31 is formed is relatively inwarded to the front side to form a step and protrude. It is possible to easily check the storage position of the suction passage and the syringe coupling part by the surface and the inner elevation.

6A and 6B, the syringe tip complex according to the present invention has a collecting groove 25 on the inner wall surface of the front side that is continuous with the filter 23 on the suction passage 24 formed in the suction pipe portion of the filter tube 20. This can be further formed.

The collecting groove 25 expands the diameter of the inner wall surface of the suction flow path 24 on the front side of the filter to a predetermined length to temporarily lower the suction pressure of the chemical solution sucked into the suction flow path so that foreign substances contained in the chemical solution sink to the bottom. . This makes it possible to prevent foreign substances from accumulating on the edge off the center of the suction passage, thereby preventing the foreign substances from being caught in the center of the filter and lowering the suction power of the filter tube.

The collecting groove 25 may be formed deep only on a lower portion of the inner wall of the suction passage 24 ( FIG. 6B ) or may be formed in an annular shape on the inner wall of the suction passage to temporarily change the pressure.

In addition, in the filter tube 20 including the composite tube, the collecting groove 25 can be formed by adjusting the wall thickness by increasing the thickness of the wall forming the suction passage 24 as a whole, and only the portion where the collecting groove is formed. It may also be provided as a structure for protruding the wall to the outside.

As shown in FIG. 6c , the filter tube 20 is separated into front and rear units to facilitate installation of the filter 23 . Of course, the storage tube 30 may be provided in a structure similar to the filter tube structure shown in the composite tube form integrally formed.

As shown, the filter tube 20 is composed of a suction pipe part 21 having a straight suction flow path in the front and a pipe coupling part 22 for seating the filter 23 at the rear side.

At the coupling site, the rear end of the suction pipe portion 21 is configured such that the central portion protrudes backward in the longitudinal direction, and a lower portion of the protruding portion forms a groove forward from the rear end, so that the collecting groove 25 is formed after the groove portion is coupled. can be formed

In addition, at the coupling site, the front end of the pipe coupling part 22 forms an internal insertion groove 222 for inserting the rear end of the suction pipe part in the inner central direction, and a filter insertion groove 223 is further formed in the rear side from the internal insertion groove. grooves may be formed.

When configured in this way, the filter 23 can be seated in the filter insertion groove 223 of the pipe coupling part and then coupled with the suction pipe part 21, so that the filter can be easily installed in the filter tube. In addition, the rear end of the suction pipe 21 presses the edge of the filter 23, so that the filter can be installed inside without lifting.

In addition, a locking protrusion 224 is formed on the inner surface of the front end of the pipe coupling part 22, and a locking groove 212 is formed on the outer surface of the protruding portion of the suction pipe corresponding to this, so that the two members are firmly coupled by force fitting. The watertightness can be improved by further interposing a rubber packing 50 between the coupling portion of the suction pipe portion 21 and the tube coupling portion 22 .

In addition, as shown in Fig. 7a, the filter 23 is placed in the tray module 12, and a filter mounting side groove 26 is formed on the side of the filter tube 20 or the composite tube to accommodate the filter 23 ( 12) can be inserted into the filter mounting side groove 26 so that the filter can be easily mounted on the suction passage 24. At this time, a rubber packing 50 is interposed on the front and/or rear surface of the tray module 12 to prevent leakage of water through the gap between the filter mounting side groove 26 and the tray module 12 .

In addition, as shown in FIG. 7b , a configuration in which a plurality of flow paths are joined into one can also be formed in the rear side of the filter 23 that is seated on the tray module 12 fitted to the side. As such, when a portion for merging a plurality of suction flow paths is formed in the tray module 12, a plurality of suction flow paths are formed in front of the filter mounting side groove 26 when manufacturing a filter tube or a composite tube, and one suction flow path is formed on the rear side of the filter mounting side groove 26 By forming a coupler, manufacturing can be made easily.

8A and 8B are cross-sectional views illustrating a front end portion of the filter tube 20 according to another embodiment of the present invention.

The filter 23 was placed in contact with the front end of the filter tube 20 of FIG. 8A , and a shear cap 27 was mounted to contain the placed filter.

The shear cap 27 has a through hole formed in the center so that the edge is fitted or screwed into the front end of the filter tube 20 . Therefore, the external chemical is sucked into the suction passage 24 of the filter tube through the central hole of the front end cap 27, and the chemical liquid sucked in this process is between the front end of the front end of the front end of the front cap 27 and the filter tube 21. Separation of foreign substances may be made while passing through the filter 23 interposed in the .

As another method of fixing the filter to the front end of the filter tube, as shown in FIG. 8B , a method of manufacturing the filter 23 in a cap shape and mounting the filter 23 over the front end of the filter tube 21 may be applied.

In addition, in addition to the above method, the filter can be fixed by various known methods such as attaching the filter to the front end of the filter tube.

As described above, in the syringe tip complex 10 according to the present invention, when a syringe is mounted on the coupling port 221 of the filter tube 20, the filter tube 20 is inserted into the chemical storage container and the syringe pusher is pulled. The chemical solution stored in the storage container is sucked into the suction flow path 24 through the front suction port 211 of the filter tube, and passes through the filter 23 installed on the suction flow path while proceeding along the suction flow path. At this time, foreign substances contained in the chemical are filtered by the filter, and only the chemical solution from which the foreign substances are finally removed is filled in the syringe.

When filling is complete, the syringe is removed from the filter tube, coupled to the needle stored in the storage tube 30 integrally or connected to the filter tube, and the syringe is pulled back to separate the needle from the storage tube and then injected into the body. do.

When configured in this way, the filter tube 20 that removes foreign substances from the chemical and the storage tube containing the needle for human injection are provided at the same time. Since problems such as touching and causing pain can be eliminated, it has become possible to provide a device capable of hygienic management of injection needles.

10: syringe tip complex
11: composite tube 12: tray module
20: filter tube
21: suction pipe part 22: pipe coupling part
23: filter 24: suction flow path
25: collecting groove 26: filter mounting side groove
27: shear cap
211: intake port 212: locking groove
221: coupler 222: inner groove
223: filter insertion groove 224: locking projection
30: storage tube
31: storage oil
311: expansion part
40: connection means
50: rubber packing
60: syringe
70: needle

Claims (7)

In the syringe tip complex that is coupled to the front end of the syringe and fills the syringe by sucking the chemical solution stored in the storage container
A suction pipe part 21 having a suction flow path 24 formed therein to suck the chemical from the front end, and a pipe coupling part 22 connecting the suction flow path with the front end of the syringe continuously formed and coupled to the rear end of the suction pipe part, and the a filter tube 20 installed at the front end or inside of the suction pipe part and configured with a filter 23 for filtering out foreign substances in the chemical;
Inside, the storage tube 31 is formed with the front end closed and the rear end having an enlarged tube portion 311, the enlarged tube portion 311 is in close contact with the syringe coupling portion of the built-in injection needle to be detachably fixed and supported. (30); is integrally constituted,
The filter tube 20 is provided with a plurality of suction pipe parts 21 to suck the chemical through a plurality of suction passages, and the plurality of suction passages are joined at the pipe coupling part 22,
A collecting groove 25 is formed on the inner wall surface of the front side continuous with the filter 23 on the suction passage 24 formed in the suction pipe part of the filter tube 20, and the collecting groove 25 is located on the front side of the filter. By extending the inner wall diameter of the suction flow path 24 to a certain length, the suction pressure of the chemical solution sucked into the suction flow path is temporarily lowered so that foreign substances contained in the chemical solution sink to the bottom,
A locking protrusion 224 is formed on the inner surface of the front end of the pipe coupling part 22, and a locking groove 212 is formed on the outer surface of the protruding part of the suction pipe to be firmly coupled by force fitting, and the suction pipe part A rubber packing 50 is interposed between the coupling portion of the 21 and the tube coupling portion 22,
A filter mounting side groove 26 is formed on the side surface of the filter tube 20, and the tray module 12 on which the filter 23 is seated is inserted into the filter mounting side groove 26 to thereby the suction flow path 24. It facilitates the installation of the filter on the
Syringe tip complex, characterized in that the rubber packing (50) is interposed on the front or rear surface of the tray module (12) to prevent leakage through the gap between the filter mounting side groove (26) and the tray module (12). delete According to claim 1,
The filter tube 20 and the storage tube 30 are formed in one composite tube 11,
A suction flow path 24 is formed inside the composite tube 11, and the suction flow path 24 communicates with one suction flow path 24 from the front end to the rear end, or opens a plurality of suction ports 211 at the front end. and formed long in the longitudinal direction from the plurality of suction ports and then joined at the rear to communicate with the coupling port 221 of the rear end pipe coupling part,
Syringe tip complex, characterized in that the storage flow path 31 with the front end closed to one side of the suction flow path inside the composite tube is formed so that the injection needle is embedded. 4. The method of claim 3,
The surface of the rear end of the storage passage (31) is a syringe tip complex, characterized in that it is configured such that a step is formed with the surface of the rear end of the suction passage (24). delete According to claim 1,
The filter tube 20 is configured to be separated and detached rearward by separating the filter 23 built-in in the suction passage 24 based on the portion where it is located, or the portion where the filter 23 is located and the collecting groove 25. Syringe tip complex, characterized in that the formed part is configured to be detachable laterally as one module. 4. The method of claim 1 or 3,
A front end of the suction pipe portion 21 of the filter tube 20 is further installed with a front end cap 27 having a through hole in the center, and a filter 23 is interposed between the front end cap 27 and the suction pipe portion 21. A syringe tip complex, characterized in that it separates foreign substances contained in the inhaled drug solution.

Images