WO2018066748A1

WO2018066748A1 - Medical drain unit having luer-lock connection structure

Info

Publication number: WO2018066748A1
Application number: PCT/KR2016/012964
Authority: WO
Inventors: 이현우
Original assignee: 이현우
Priority date: 2016-10-05
Filing date: 2016-11-11
Publication date: 2018-04-12

Abstract

The present invention relates to a medical drain unit comprising: a drain port installed in an infusion solution container; and a drip chamber detachably coupled to the drain port and discharging an infusion solution stored in the infusion solution container. More specifically, the present invention relates to a medical drain unit having a luer-lock connection structure, in which a rubber stopper having a cut incision and a first coupling tube exposing the incision are installed in the drain port; and a second coupling pipe coupled to the first coupling pipe and a luer-lock connector including an insertion tube which is inserted into the incision to discharge the infusion solution are installed in the drip chamber, whereby a spike that is forcedly inserted into the rubber stopper is not required.

Description

Medical drainage unit with luerlock connection

The present invention comprises a drain port (drain port) is installed in the fluid container, and a drip chamber that is detachably coupled to the drain port and discharges the fluid stored in the fluid container. Regarding the medical drainage unit, to be described in more detail, the drainage port is provided with a rubber field in which the sheath incision is cut and a first coupling tube exposing the sheath incision, and the drip chamber is provided in the first drip chamber. A luer-lock connector is installed that includes a second coupling tube coupled to the coupling tube and an insertion tube inserted into the sheath cutting line to discharge the sap, thereby forcing a spike into the rubber tube. A medical drainage unit having a luer-lock connection structure without the need for a spike.

1 shows a general configuration of a set of sap used for medical purposes, the sap container 100 for storing sap, the drainage port 110 provided in the sap container 100, and the sap A drip chamber 120 for discharging the fluid from the container 100, a fluid tube 140 connected to the lower end of the drip chamber 120, a syringe 150 installed at an end of the fluid tube 140, and It consists of a needle connector 160 and the like. The fluid tube 140 is provided with a flow regulator 130 for adjusting the flow rate of the sap and a Y-shaped branch pipe 170 for injecting other drugs.

In the fluid set, the drip chamber 120 inserts a spike into the drain port 110 and draws out the fluid stored in the fluid container 100. Also referred to as a 'dropping tube' or 'dropping container' do. The drip chamber 120 is made of a transparent soft material to visually check the discharge rate of the sap, and may press the both sides to pump the sap to promote drainage. In addition, a rubber stopper is installed in the drainage port 110 to force the sharp spike of the drip chamber 120 to be inserted, and the fluid drawn out through the spike is temporarily stored in the drip chamber 120, and then the fluid tube. Discharged to 140.

However, the conventional infusion set as described above may cause fine rubber debris from a rubber stopper when the spike is inserted into the drainage port 110, and when such rubber debris is introduced into the patient's body together with the fluid, serious side effects may occur. Can cause.

Therefore, in Korean Patent Application Publication No. 10-2012-0035260 (2012.04.16.), An infusion set having a filter member installed in a Y-shaped branch pipe of an infusion tube to filter out foreign substances such as rubber debris that may occur when spikes are inserted is provided. In addition, Korean Patent Application No. 10-2015-168350 (November 30, 2015) introduces a drainage unit provided with a filter opening in a drip chamber.

In addition, in the conventional drip chamber using spikes, when an unexpected tension is exerted on the fluid tube during drainage, spikes may escape from the drainage port, or a safety accident may occur in which a nurse or a patient is pierced by a sharp spike.

For reference, conventional drip chambers are introduced in Korean Registered Utility Model Nos. 20-0458702 (February 09, 2012) and 20-0470517 (December 16, 2013), and the like. 1329056 (November 07, 2013) introduces a luer-lock medical connector.

[Preceding technical literature]

(Patent Document 1) Registration Utility Model No. 20-0458702 (February 09, 2012)

(Patent Document 2) Registration Utility Model No. 20-0470517 (December 16, 2013)

(Patent Document 3) Registered Patent No. 10-1329056 (November 07, 2013)

Accordingly, an object of the present invention is to provide a safe medical drainage unit that does not cause rubber debris or safety accidents due to sharp spikes in the process of connecting the drip chamber and the drain port of the infusion set to inject the fluid into the patient. It is.

In addition, another object of the present invention is to provide a medical drainage unit in which the connection state between the drainage port and the drip chamber is not easily released even if an unexpected tension is exerted on the transfusion tube in the process of draining the fluid from the fluid container.

In order to achieve the above object, the present invention, the drain port (drain port) is installed in the infusion container and the drip chamber (drip) for discharging the sap stored in the infusion container is detachably coupled to the drain port A medical drainage unit consisting of a chamber, wherein the drainage port is provided with a rubber field in which a sheath incision is cut and a first joining tube for exposing the sheath incision, and the drip chamber is provided with the first joining tube. A luer-lock connector is installed that includes a second coupling tube coupled to the cutting pipe and an insertion tube inserted into the sheath cutout to discharge the sap, and the drip chamber is forcibly inserted into the rubber tube. It is characterized by the absence of spikes.

According to a preferred embodiment of the present invention, the drain port includes: a drain pipe connected to the fluid container A1 to discharge the fluid; It is disposed at the lower end of the drain pipe and the central hole is formed in the vertical direction and the bottom of the block blocking the lower end of the center of the rubber sheath cutting line is cut; A rubber front cap member coupled to the bottom of the drain pipe to surround the rubber front and having a first coupling pipe protruding from the bottom to expose the cut sheath; Characterized in that consists of.

The Luerock connector includes: a second coupling tube coupled to an outer circumferential surface of the first coupling tube; A sleeve having an enlarged diameter at a lower end of the second coupling pipe; An insertion tube passing through the center of the second coupling tube and the sleeve in an up and down direction and having an upper end penetrating through the cut line; Characterized in that consists of.

In addition, the drip chamber has a cylindrical structure and has an internal space in which the sap falling through the drainage tube is temporarily stored, and an upper edge is fixedly coupled to the outer circumferential surface of the sleeve, and a lower end of the sap tube A2. Characterized in that the fluid discharge hole is connected to the formed.

In addition, the drip chamber ascends along the level of the sap, and after all the sap is discharged, it characterized in that the floating member for blocking the upper end of the sap discharge hole.

Medical drainage unit according to the present invention does not use a spike (spike) when connecting the drain port and the drip chamber for injecting fluid to the patient, there is no fear of rubber debris during the spike insertion process, rubber stopper is pushed or spike Difficult to enter the difficulty can be eliminated, and the sharp spikes are effective to prevent the user from being accidentally stabbed.

In addition, the medical drainage unit according to the present invention is connected to the bottom of the drip chamber in the process of draining the fluid from the fluid container (A1) because the first coupling pipe of the drainage port and the second coupling pipe of the Luerlock connector are firmly coupled to each other. Even if an unexpected tension is exerted on the fluid tube A2, there is no effect that the connection state between the drainage port and the drip chamber is not released.

1 is a view showing the structure of a conventional infusion set,

2 is a block diagram of a drainage unit according to the present invention;

3 to 6 are a perspective view (A) and a cross-sectional view (B) of the drainage port according to different embodiments of the present invention,

7 is a perspective view (A) and a coupling cross-sectional view (B) of the luer lock connector and the drip chamber,

8 is a cross-sectional view illustrating a state in which the drainage port and the luer lock connector are connected to each other and a floating member is built into the drip chamber;

9 is a cross-sectional view of a combination of a luer lock connector and a drip chamber according to another embodiment of the present invention.

10, 10a, 10b, 10c, 10d; Drainage port 11; drainage tube

111; Dilator 12a, 12b; Rubber warfare

121; Central hall 122; Sheath cutting

13a, 13b; Rubber front cap member 131; First coupling pipe

14a, 14b; Rubber support member 141; Upper wall

142; Bottom ring 143; Rubber front support

20,20a, 20b; Luerlock connector 21; Second coupling pipe

22; Sleeve 23; Insertion tube

24; Aerator 25; Air filter

26; Connection port 30; Drip chamber

31; Sap discharge hole 40; Floating member

41; Lifting cup 42; Sap passing hole

43; Shut-off valve

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, these drawings are only examples for explaining the present invention more easily, and the scope of the present invention is not limited by these examples. In addition, even if the configuration necessary to practice the present invention belong to the known technology, or a detailed description of the configuration that can be easily implemented by those skilled in the art from the known technology will be omitted.

For the sake of convenience, the sap container A1 is referred to as 'top' or 'upper' and the sap tube A2 is referred to as 'lower' or 'down' for convenience. However, even if the components belong to different embodiments and have slightly different structures, the same reference numerals are assigned to the same functional components.

Medical drainage unit according to the present invention, as shown in Figure 2, the drainage port 10 is installed in the infusion container (A1), and a luer lock connector that is detachably coupled to the lower end of the drainage port (10) 20) and a drip chamber 30 fixedly coupled to the lower end of the Luerlock connector 20. The infusion container A1 is preferably a plastic bag manufactured by sealing a synthetic resin film made of non-PVC material, but is not limited thereto. The lower end of the drip chamber 30 is connected to the conventional infusion tube (A2).

Figure 3 shows the drainage port 10a according to an embodiment of the present invention, it is composed of a drainage pipe 11, rubber front 12a and rubber front cap member 13a. The drainage pipe 11 is connected to the fluid container A1, and may be directly sealed to the fluid container A1 as shown in FIG. 2, or inserted into a connection tube (not shown) sealed in the fluid container A1. May be

When the drainage tube 11 is directly sealed to the infusion container A1, the cross-sectional structure is a flat rhombus shape so that leakage does not occur at the sealing portion, or the drainage tube 11 having an elliptical shape protruding from both ears as shown in FIG. When the drainage pipe 11 is inserted into the connection tube sealed in the infusion container A1, the drainage pipe 11 having a circular cross-sectional structure is used.

The rubber field 12a is disposed at the lower end of the drain pipe 11, and a central hole 121 is formed in the vertical direction. The upper end of the central hole 121 is connected to the drainage pipe 11, the lower end of the central hole 121 is blocked by a bottom portion, the sheath on the bottom portion blocking the lower end of the central hole 121. The incision 122 is cut off.

The rubber jeon 12a is made of a rubber material or an elastomer (elastomer) material harmless to the human body and excellent in elasticity, as in the conventional medical rubber jeon, the cut cut 122 is a crisscross (+) shape or Hanja ( -) It is preferable to cut in shape. The sheath cut 122 is opened when an appropriate external force is applied, but when the external force is removed, the sheath cutting line 122 is brought into close contact with each other in an original state by the elasticity of the material itself.

The rubber sheet cap member 13a is coupled to the lower end of the drain pipe 11 to surround the rubber sheet 12a, thereby preventing the rubber sheet 12a from being separated. As shown in FIG. 3, a first coupling pipe 131 exposing the sheath cut line 122 protrudes from the lower end of the rubber front cap member 13a.

Figure 4 shows a drainage port 10b according to another embodiment of the present invention, the lower end of the drainage pipe 11 is provided with an expansion tube 111 having an enlarged diameter, the drainage pipe 11 and the rubber cap The rubber front support member 14a is additionally disposed between the members 13b. The rubber front support member 14a includes an upper round wall 141 inserted into the expansion pipe 111 and a lower round wall 142 coupled to the rubber front cap member 13b. The inner circumferential surface between the 141 and the lower annular wall 142 is provided with a rubber front support jaw 143 supporting the upper edge of the rubber front 12b.

The drainage pipe 11, the rubber front cap member 13b and the rubber front support member 14a are coupled to one body after mounting the rubber sheet 12b therein in an injection molded state separately. The rubber field 12b and the rubber field cap member 13b of FIG. 4 are slightly different in structure from the rubber field 12a and the rubber field cap member 13a of FIG. 3, but have the same function. In addition, the first coupling pipe 131 is equipped with a protective cap (not shown) to prevent contamination of the cut sheath 122.

5 and 6

show drainage ports

10c and 10d according to another embodiment of the present invention, respectively, and a cutting cap protecting the sheath cutting line 122 at the lower end of the first coupling pipe 131 ( 15a, 15b) are provided. The cutting caps 15a and 15b are one-touch types, and may be simply cut when necessary to expose the cut cut 122. The cutting caps 15a and 15b are slightly different in structure but have the same function. The rubber front support member 14b of FIGS. 5 and 6 is slightly different in structure from the rubber front support member 14a of FIG. 4, but functions the same.

Next, the luer lock connector 20 is detachably coupled to the lower end of the drain port 10 to discharge the sap stored in the sap container A1. Luer lock connector 20a according to an embodiment of the present invention, as shown in Figure 7, the second coupling pipe 21 is coupled to the first coupling pipe 131 of the rubber front cap member (13a, 13b) And a sleeve 22 having a diameter expanded at a lower end of the second coupling pipe 21 and extending downward, and an insertion pipe passing vertically through the center of the second coupling pipe 21 and the sleeve 22. It consists of 23.

The first coupling pipe 131 and the second coupling pipe 21 may be tightly coupled to each other by force insertion, or may be screwed by a female screw and a male screw corresponding to each other. So when the second coupling tube 21 is coupled to the first coupling tube 131, as shown in Figure 8, the upper end of the insertion tube 23 is inserted into the first coupling tube 131 is After passing through the cut sheath 122 of the rubber field (12a, 12b), it is connected to the central hole (121).

At this time, since the sheath cutting line 122 is previously cut in the rubber fields 12a and 12b, the insertion tube 23 is easily inserted. In addition, a slight gap is formed between the inner walls of the rubber front cap members 13a and 13b and the rubber front 12b, so that the outer diameter of the rubber front 12b is expanded due to the insertion of the insertion tube 23. It has the function of accommodating the

The drip chamber 30 has a cylindrical structure made of a transparent or translucent material and has an internal space in which the sap dropped through the insertion tube 23 is temporarily stored. The upper edge of the drip chamber 30 is coupled to the sleeve 22, the lower end is provided with a fluid discharge hole 31 connected to the fluid tube (A2). The drip chamber 30 is made of a soft polypropylene or polyethylene resin material having a circular restoring force so that a user can pump the sap as needed.

On the other hand, as shown in Figure 8, the drip chamber 30 in the drip chamber (30) after the elevation of the sap and all the sap is discharged, the sap discharge hole 31 so that air does not flow into the sap tube (B) Floating member 40 to block the top of the may be built. The structure of the floating member 40, the lifting cup 41 facing the inner wall of the drip chamber 30 in a spaced apart state, and the transfusion hole 42 through the circumferential direction through the lifting cup 41 and It is preferable that it is composed of a shut-off valve 43 protruding downward on the bottom of the elevating cup (41).

The lifting cup 41 has a buoyancy against the sap, and is a material harmless to the human body, for example, preferably made of polypropylene resin. For reference, polypropylene has a specific gravity lower than that of sap and thus has buoyancy with respect to sap.

The infusion passage hole 42 provides a passage through which the sap flowing into the insertion tube 23 flows down to the bottom of the drip chamber 30. Thus, when the sap rises inside the drip chamber 30, the floating member 40 floats, and the sap discharge hole 31 is opened. When the level of the sap is lowered, the floating member 40 descends to the shutoff valve. 43 seals the inlet of the sap discharge hole 31.

The shutoff valve 43 is formed in a dish shape, and preferably has a structure in which the thickness becomes thinner from the center to the edge, and the material is preferably made of a soft elastomer, silicone or rubber.

Figure 9 shows the structure of the Luerock connector 20b according to another embodiment of the present invention, between the second coupling pipe 21 and the sleeve 22 is connected to the top of the insertion pipe 23 from the side An air vent 24 is formed, and an air filter 25 is provided in the air vent 24. The vent hole 42 serves to supply air into the fluid container A so that the fluid can be easily discharged even when the fluid container A is a hard container that cannot be contracted.

In addition, the luer lock connector 20b is provided with a connection port 26 between the second coupling pipe 21 and the sleeve 22. The connection port 26 functions to connect a connector into which another fluid or drug is mixed into the insertion tube 23. As shown in FIG. 9, since the structure of the connection port 26 is similar to the drainage port 10b of FIG. 5, a detailed description thereof will be omitted.

Claims

The drain pipe which is connected to the fluid container (A1) and discharges the fluid, and the lower part of the drain pipe is disposed in the upper and lower direction, the central hole is formed in the bottom portion to block the lower end of the rubber is cut sheath incision And a drain port (drain port) consisting of a rubber front cap member is coupled to the lower end of the drain pipe and surrounds the rubber field and protrudes a first joining tube exposing the cut sheath in the lower end;

A second coupling pipe coupled to an outer circumferential surface of the first coupling pipe, a sleeve having an enlarged diameter at a lower end of the second coupling pipe, and a center of the second coupling pipe and the sleeve in a vertical direction; A luer-lock connector comprising an insertion tube through which an upper end penetrates the sheath cutting line through the luer-lock connector;

Cylindrical structure has an inner space in which the sap (輸液) falling through the insertion tube temporarily stored, the upper edge is fixedly coupled to the outer peripheral surface of the sleeve, the lower end of the sap discharged connected to the sap tube (A2) A drip chamber in which a ball is formed;

Medical drainage unit having a Luerlock connection structure, characterized in that comprising a.
The luerock connection structure according to claim 1, wherein the drainage tube is directly sealed to the infusion container A1, and has a flat rhombus shape in cross section or an oval shape in which both ears protrude. Medical drainage unit having a.
According to claim 1 or 2, wherein the rubber support member is additionally disposed between the drain pipe and the rubber front cap member, the lower end of the drain pipe is provided with an enlarged pipe portion having an enlarged diameter,

The rubber front support member has an upper ring wall inserted into the expansion pipe portion, a lower ring wall coupled to the rubber front cap member, and a rubber front support jaw supporting the upper edge of the rubber front. Medical drainage unit having a connection structure.
According to claim 1 or claim 2, wherein the lower end of the first coupling pipe is provided with a cutting cap that protects the sheath cut improvement and is cut if necessary to expose the sheath cut improvement. A medical drainage unit having a luer lock connection structure.
The luer lock according to claim 1 or 2, wherein the outer diameter of the first coupling pipe is provided with a male screw, and the inner diameter of the second coupling pipe is provided with a female screw corresponding to the male screw. Medical drainage unit having a connection structure.
The method of claim 1, wherein the drip chamber is raised and lowered along the level of the sap, and after all the sap is discharged, a floating member for sealing the upper end of the sap discharge hole to block the inflow of air is built-in A medical drainage unit having a luer lock connection structure.
The apparatus of claim 6, wherein the floating member comprises: a lifting cup facing the inner wall of the drip chamber at a spaced state; An infusion passage hole penetrating the lifting cup in a circumferential direction; A shutoff valve protruding downward on the bottom of the elevating cup to be in close contact with the inlet of the sap discharge hole when descending; Medical drainage unit having a Luerlock connection structure, characterized in that comprising a.
According to claim 1 or 6, The Luerock connector is provided with a vent connected to the upper end of the insertion tube in the side between the second coupling pipe and the sleeve, the vent is provided with an air filter A medical drainage unit having a luerlock connection structure, characterized in that there is.
The connector of claim 1, wherein the luer lock connector protrudes to one side between the second coupling pipe and the sleeve and connects a connector for injecting another fluid or drug into the drip chamber. A medical drainage unit having a luer lock connection structure, characterized in that is provided.
In the medical drainage unit comprising a drain port installed in the fluid container and a drip chamber detachably coupled to the drain port and discharges the fluid stored in the fluid container. ,

The drainage port is provided with a rubber field in which the sheath incision is cut and a first coupling pipe exposing the sheath incision.

The drip chamber is provided with a luer-lock connector including a second coupling tube coupled to the first coupling tube and an insertion tube inserted into the sheath cutting line to discharge the sap.

The drip chamber has a lure lock connection structure, characterized in that there is no spike (force) is forced into the rubber transfer.