KR20170040062A

KR20170040062A - Drain unit of medical injection set

Info

Publication number: KR20170040062A
Application number: KR1020150168350A
Authority: KR
Inventors: 이상운
Original assignee: 이상운
Priority date: 2015-10-02
Filing date: 2015-11-30
Publication date: 2017-04-12

Abstract

[0001] The present invention relates to a drainage unit for a medical fluid set (transfusion), which comprises a spike inserted into a port of a liquid storage container and a spike inserted through the spike And a filter member installed in the drip tray, thereby preventing the possibility that foreign substances possibly contained in the liquid may flow into the body.

Description

[0001] Drain unit of medical injection set [

1, a set of a liquid used for medical purposes generally includes a liquid container 100 storing a liquid, a port 110 installed in the liquid container 100, A drain tube 140 connected to the lower end of the drain unit 120, a syringe 150 and a needle connector 160 provided at the end of the drain unit 120, do. The fluid tube 140 is provided with a flow controller 130 for controlling the flow rate of the fluid and a branch tube 170 for injecting other drugs.

The drain unit 120 includes a spike inserted into the port 110 and a drip chamber for temporarily storing the liquid discharged through the spike and discharging the liquid to the liquid tube 140. [ ). Since the drip tray is made of a transparent soft material, the discharge speed of the liquid can be visually confirmed, and the liquid can be pumped to facilitate drainage.

Conventionally, in the domestic registered utility model 20-0188631 (Apr. 28, 2000), a drainage unit in which a luminous ball is embedded in the above-mentioned spotted cylinder has been introduced, and a regeneration unit 20-0458702 (Feb. 20-0470517 (Dec. 16, 2013), a drainage unit is disclosed which has a prefabricated structure in which spikes and dots are unevenly coupled.

In addition, a filter member is installed in the branch pipe 170 of the attached drawing 1 in order to filter out foreign substances that may occur when the spike is inserted into the manufacturing process or the port, in the patent application 10-2012-0035260 (April 16, 2012) A set of sap is introduced.

Registration Utility Model No. 20-0188631 (Date of Registration; April 28, 2000) Registration Practical Utility Model No. 20-0458702 (Registration date: February 09, 2012) Registration Utility Model No. 20-0470517 (Registration Date: December 16, 2013) Patent Publication No. 10-2012-0035260 (date of publication; April 16, 2012)

Accordingly, it is an object of the present invention to provide a liquid set which can be safely used without any fear of side effects by completely eliminating the possibility of foreign substances such as rubber debris, which may occur when a liquid set is inserted into a liquid container, And a drainage unit.

A drainage unit of a liquid receiver set according to the present invention is a drainage unit comprising a spike inserted into a port of a liquid receiver and a drip tube temporarily storing the liquid discharged through the spike and discharging the liquid to the liquid tube, , There are provided a drain hole through which the liquid passes, a vent hole into which air flows, an air filter provided at the vent hole, and a sleeve coupled to an upper end of the dotted bottle, And a filter member for filtering the foreign matter contained in the filter.

According to the first embodiment of the present invention, the first engagement protrusion protrudes in the circumferential direction on the inner diameter of the upper end of the accumulation container, Wherein the filter member includes a cylindrical body inserted into the sleeve of the spike, a first step portion formed in a circumferential direction in the middle of the inner diameter portion of the cylindrical body, and a second step portion provided on the first step portion to block the inside of the cylindrical body And a drain port penetrating the transverse bottom plate so as to allow the liquid to pass therethrough. The transverse bottom plate includes a first filtration membrane, a cylindrical bottom body covering the first filtration membrane, do.

According to the second embodiment of the present invention, the second engagement protrusion protrudes in the circumferential direction on the intermediate inner diameter portion of the accumulation container, Wherein the filter member comprises a lower support ring which sits on the second engagement ring and a second end ring which is formed in a circumferential direction in the middle of the inner diameter of the lower support ring, And an upper support ring 44 coupled to the second step portion to press the rim portion of the second filtration membrane.

The drainage unit of the liquid set according to the present invention filters all of the liquid flowing from the spike to the drip tank because the filter member installed in the drip tank infiltrates into the human body even if rubber fragments or foreign substances are included in the liquid. It can be used safely without any effect.

Fig. 1 is a schematic view of a typical liquid set,
2 is an assembled cross-sectional view of a drain unit according to the first embodiment of the present invention,
3 is an exploded sectional view of the drain unit according to the first embodiment of the present invention,
FIG. 4 is an assembled cross-sectional view of a drainage unit according to a second embodiment of the present invention,
5 is an exploded cross-sectional view of a drainage unit according to a second embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, in the present invention, each component will be described by assuming that the upper side is the upper side and the lower side is the lower side based on the direction in which the liquid flows down in the state where the drainage unit is inserted into the liquid-receiving container for convenience.

A drainage unit of a liquid set according to the present invention comprises a spike (10) inserted into a port of a liquid receiver, a dropper (20) for temporarily storing the liquid discharged through the spike (10) And a filter member 30 installed inside the drip tray 20. The drip tray 20 is generally used with the spike 10 facing upward and the drip tray 20 facing downward.

First, the spike 10 is provided with a sharp pointed portion for penetrating a rubber stopper or a port at the upper end thereof. The spike 10 is provided with a drain hole 11 through which the sap flows out along the longitudinal direction, Pores 12 are formed side by side.

An air filter 13 is provided at a side inlet of the vent hole 12 and a sleeve 14 is provided at a lower end of the vent hole 12 to surround the outlet of the vent hole 11. [ The spike 10 is made of hard ABS resin or hard polyolefin resin.

Next, the drip tray 20 functions to temporarily store the liquid flowing out through the drain hole 11. The first and second inner diameter portions and the intermediate inner diameter portion are respectively provided with a first engagement tooth 21 and a second engagement tooth 21 in the circumferential direction. And the second locking projection 22 protrudes. The upper end of the drop tube 20 is coupled to the outer diameter portion of the sleeve 14 and the lower end of the connection tube 23 is connected to a connection tube 23 to which a liquid receiver tube (not shown in FIGS. 2 to 5) is connected .

Since the viscous container 20 is made of a transparent soft material, it can be visually confirmed whether the liquid flows smoothly through the outlet of the drain hole 11, and if necessary, 20 may be pushed by pressing both sides of the liquid.

The dot cylinder 20 is made of a transparent polyolefin resin, preferably polyethylene or polypropylene resin, having elasticity, and may optionally include an elastomer. Particularly, the dropping tube 20 preferably uses a polyolefin-based resin having a Shore A hardness of 40 to 100.

Lastly, the filter member is provided inside the drip tray 20 to filter foreign matters contained in the liquid.

2 and 3 illustrate the construction of the first filter element 30 according to the first embodiment of the present invention. The cylindrical body 31 is inserted into the sleeve 14 of the spike 10, A first stepped portion 32 formed in the circumferential direction in the middle of the inner diameter portion of the cylindrical body 31 and a first filter film 33 disposed at the first stepped portion 32 to block the inside of the cylindrical body 31 A transverse bottom plate 34 in which a rim part of the cylindrical body 31 is closed and a rim part of which is seated on the first engaging ridge 21; And a drain port 35.

Therefore, the liquid flowing into the drain hole 11 passes through the first filtration film 33, then passes through the drain port 35 and falls into the drip tray 20. As shown in FIG.

4 and 5 illustrate the structure of the second filter member 40 according to the second embodiment of the present invention. The lower support ring 41, which sits on the second engagement ring 22, A second stepped portion 42 formed in the middle of the inner diameter portion of the lower support ring 41 in a circumferential direction and a second filter member 42 disposed on the second stepped portion 42 to block the inside of the lower support ring 41, And an upper support ring 44 which is coupled to the second step portion 42 and presses the rim portion of the second filtration film 43.

The first filter member 30 can visually confirm the discharge rate of the liquid through the liquid discharge port 35 and the second filter member 40 is capable of visually confirming the discharge speed of the liquid through the outlet 11a of the liquid discharge hole 11, Can be visually confirmed. For this purpose, the outlet 11a of the drain hole 11 is preferably exposed under the sleeve 14 in the second embodiment. It is relatively easy to confirm the discharge speed of the liquid by the naked eye in the second embodiment rather than the first embodiment.

In the second embodiment, it is preferable that the lower support ring 41 and the upper support ring 44 are made of opaque materials. Even if a foreign substance contained in the liquid is caught in the second filtration film 43 and floated in the liquid flowing on the second filtration film 43, the foreign substance is covered from the view of the patient or the user, It is to dispel the anxiety. For reference, in the case of the first embodiment, the sleeve 14 of the spike 10 replaces this function.

The first and second filtration membranes 33 and 43 are formed of any one of polyether sulfone (PES), polytetrafluoroethylene (PTFE), and polyvinylidene fluoride (PVDF) 5 mu m. The material of the filtration membrane 31 and the size of the filter hole may vary depending on the kind of the liquid or the use of the liquid set. If the size of the filter hole is 0.2 mu m, the filtration rate becomes too slow, which is undesirable. Conversely, if the size of the filter hole exceeds 5 mu m, there is a problem that fine foreign matters can not be sufficiently filtered.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, the scope of the present invention is not limited by these embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, this design change will not depart from the scope of the present invention unless a completely new and unexpected effect is exhibited in the present invention.

10; Spike 11, 11a; Drain hole
12; Vents 13; Air filter
14; A sleeve 20; Integration chamber
21, 22; Jaw tuck 23; Connector
30,40; A filter member 31; Cylinder
32, 42; End jaws 33, 43; Filtration membrane
34; A horizontal base plate 35; Drainage port
41; Lower support ring 44; The upper support ring

Claims

A spike (10) inserted into a port of the liquid container; and a drop tube (20) for temporarily storing the liquid discharged through the spike (10) and discharging the liquid to the liquid tube,
The spike 10 is provided with a drain hole 11 through which the liquid passes, a vent hole 12 through which air flows, an air filter 13 provided at the inlet of the vent hole 12, And a sleeve 14 coupled to an upper end portion of the sleeve 14,
Wherein the drip tray (20) is provided with a filter member for filtering foreign substances contained in the liquid.

The method according to claim 1,
A first latching protrusion (21) protrudes in the circumferential direction on the inner diameter of the upper end of the accumulation cylinder (20)
The filter member includes a cylindrical body 31 inserted into the sleeve 14 of the spike 10, a first step portion 32 formed in a circumferential direction in the middle of the inner diameter portion of the cylindrical body 31, A first filtration membrane 33 installed at the first step portion 32 to block the inside of the cylindrical body 31 and a first filtration membrane 33 which covers the lower end of the cylindrical body 31, , And a drain port (35) penetrating the transverse bottom plate (33) so that the liquid passes through the center of the transverse bottom plate (33).

The method according to claim 1,
A second latching protrusion 22 protrudes in the circumferential direction at an intermediate inner diameter portion of the accumulator 20,
The filter member includes a lower support ring 41 which is seated on the second engagement ring 22, a second end stop 42 formed in a circumferential direction in the middle of the inner diameter of the lower support ring 41, A second filtration membrane 43 installed on the second stage jaw 42 to block the inside of the lower support ring 41 and a second filtration membrane 43 connected to the second stage jaw 42, And an upper support ring (44) for pressing the upper support ring (44).

The method of claim 3,
Wherein the lower support ring (41) and the upper support ring (44) are made of opaque materials, respectively.

The method according to claim 2 or 3,
Characterized in that the first and second filtration membranes (33, 43) are made of any one material selected from polyether sulfone (PES), polytetrafluoroethylene (PTFE) and polyvinylidene fluoride (PVDF) .

6. The liquid-distributing unit of claim 5, wherein the first and second filtration membranes (33, 43) have a filter hole size of 0.2 to 5 mu m.