KR20120087960A - Connector set for medical container - Google Patents

Abstract

According to the present invention, while maintaining the liquid-tightness of the medical container, while reliably connecting the medical container with the tube, preventing foreign matters from mixing or leaking into the liquid substance stored in the container, it is expected that the administration of a good administration will be performed. Provide a connector set of possible medical containers.
Specifically, a sealing portion 155 having ribs 155a-155c is formed on the protrusion 160 of the cap 15 with the connecting portions 1550a-1550c interposed therebetween. A slit 156a-156c communicating with the flow path 159 is formed just below each rib 155a-155c. Each of the ribs 155a to 155c is coupled to the engaging portion 2030A to 2030c of the nozzle 20 to rotate the nozzle 20 in the liquid-tight state to lock the cap 15. With this operation, the connecting portions 1550a to 1550c are broken to open the flow passage 159 into the nozzle 20 in a liquid-tight state with the outside.

Description

 CONNECTOR SET FOR MEDICAL CONTAINER}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector set for connecting a medical container to an infusion tube and the like, and in particular, to accurately and securely connect the nutrient container and the infusion tube without leaking impurities while preventing the mixing of impurities. It's about technology.

As a method of injecting a patient with nutrition or drugs, nutritional therapy or enteral nutrition therapy using PI tube is known.

Nutritional therapy using a PPE tube is a therapy in which the patient is nutritionally administered by the PPE tube without depending on the oral cavity. A hole (so-called gastrostomy) which passes upward through the abdominal wall of the patient is formed, and a tube (PEB tube) is installed percutaneously.

Enteral nutrition therapy, on the other hand, inserts a flexible tube (called a nasal tube) from the nasal cavity of the patient to the intestine, and the nutrients, drugs, and fluids from the outside to the intestine through the nasal tube. It is a therapy that directly administers a liquid substance such as food (hereinafter, simply referred to as a "nutritive agent").

In a normal medical container, a cap is provided in a port, and the inside of the container is sealed. When dispensing the liquid in the container, the operator first drills a hole in the cap to break the inner seal (open out). Then, one end of the guard tube or the PET tube (or the fluid tube connected to the PET tube) is connected to the hole formed in the cap by using a predetermined nozzle-shaped connector (hereinafter simply referred to as "nozzle"). At this time, the cap and the nozzle may be locked to each other so that they do not easily come off. The nutrient is distributed to the tube, and the patient is nutritionally administered from the other end of the tube.

Japanese Patent Laid-Open No. 2009-125162 Japanese Patent Laid-Open No. 2009-153588

Generally, the operator drills the cap and breaks the seal in the medical container before connecting the nozzle to the cap. For this reason, there exists a moment when the nutrient in a medical container contacts external air through the hole formed in the cap. At this time, impurities or various germs in the outside air may be mixed in the nutrient, resulting in contamination (contamination, contamination).

In addition, when the flow path in the cap is opened to the outside air, there is a problem that the nutrients leak out from the open portion, and there is room for improvement in terms of hygiene and safety.

On the other hand, in order to perform nutrition therapy correctly, it is necessary to connect the predetermined cap and the fluid tube side correctly, but there is a possibility that the cap of the nutrient container may be misconnected to another fluid tube arranged for a different purpose to the patient. There is also a need to prevent it.

The present invention has been made in view of the above-described problems, and the liquid container is reliably connected to the tube while maintaining the liquid tightness of the medical container, and the contamination or leakage of liquid substances such as nutrients stored in the container is prevented. It is an object of the present invention to provide a connector set of medical containers which can be prevented and expect good practice of administration.

In order to achieve the above object, the present invention, the first connection port is connected to the medical container side for storing the liquid and having a first coupling portion, and the second coupling connected to the fluid tube side and coupled to the first coupling portion A connector set for a medical container including a second connector having a portion, wherein the first connector is provided with a sealing portion for sealing the liquid, and the first connector is in contact with the first connector and the second connector without leaking liquid. And by moving the second connector relative to each other, the first coupling portion and the second coupling portion are coupled together, and the sealing by the sealing portion is released.

Here, the first connector is provided with an axial body portion, and the first connector and the second connector are relatively moved along the axial direction so that the liquid is in contact with the leak. By moving the first connector and the second connector so as to rotate relative to each other, the first coupling portion may be engaged with the second coupling portion, and the sealing may be released by the sealing portion.

The first connector has a structure in which the sealing portion is connected by a connecting portion having a thickness thinner than that of the main body portion, wherein the main body portion is provided with a flow path through which the liquid substance flows. It is formed integrally by this, it is also possible to have a configuration in which the flow path is opened by moving the sealing portion with the movement to break the connecting portion.

In addition, the sealing part has one or more ribs connected to the main body part by the connecting part, and a coupling groove that is engageable with the rib is formed inside the second connector, and the rib coupled to the coupling groove is moved together with the second connector during the movement. It is also possible to have a configuration that breaks back.

Moreover, the sealing part can also be comprised by forming three ribs radially symmetrically.

More specifically, the main body portion may have a protrusion that can be inserted into the second connector without leaking the liquid, and the sealing portion is provided on the protrusion and inserted into the second connector at the time of insertion. .

Moreover, this invention is the connection part which can seal the medical container which stored the liquid substance, and can connect the said medical container and an infusion tube, and the sealing part which seals the said liquid substance in the main-body part in which the flow path which distributes the said liquid substance was formed in the said main body It was set as the structure which was provided with the structure joined by the connection part of thickness thinner than the part, and the said flow path is opened by pushing a sealing part and breaking a connection part.

In the connector set of the medical container which concerns on Claim 1 of this invention, the sealing part which seals the flow path of a liquid substance is provided in the 1st connection port connected to the medical container side. When using the connection port of this container for connection, first, a 1st connection port and a 2nd connection port are made to contact a liquid without leaking. And while maintaining the said liquid tight contact state, a 1st connection port is moved to a predetermined direction, and the mutual coupling part (1st and 2nd engagement part) is combined. By this engaging (locking) operation, the sealing of the flow path by the sealing portion is released for the first time, and the liquid substance in the medical container can be flowed to the second connector side (sap tube side).

Therefore, in the connector set of the medical container which concerns on this invention, the liquid substance of a medical container does not contact external air by the sealing part of a 1st connection port until at least 1st and 2nd connection port are combined. In addition, when the flow path of the liquid is opened to the fluid tube side, the first and second connection ports are always in a coupled state, and the flow path is blocked from the outside air and kept in the liquid tight state.

Therefore, in the connector set of the medical container according to the present invention, it is possible to reduce the occurrence of a condition in which the liquid substance comes into contact with the outside air to cause the mixing of impurities, and also the problem that the liquid substance leaks and becomes contaminated when the flow path is opened. It can be suppressed and nutritional therapy can be carried out under high hygiene control.

In addition, the first connector and the second connector can be connected (locked) to each other for the first time by using the first and second coupling portions which are a dedicated combination with each other. In this way, each connection port strictly selects a connection object, thereby preventing the operator from connecting the first connection port with another fluid tube side in advance. The connector set of the medical container according to the present invention exhibits high safety even in this respect.

In addition, the connector set of the medical container according to the present invention exhibits a high effect as described above when the combination of the first and second connectors is used as described above. Even when the connecting port is used alone, it is useful in that the liquid stored in the medical container can be blocked from the outside air and the liquid can be kept free from leakage.

1 is a schematic view showing the configuration of the nutrient administration set 1 of Embodiment 1. FIG.
Fig. 2 is a diagram showing each structure and connection method of the cap 15 (mail connector) and the nozzle 20 (female connector).
3 is an external view and a cross-sectional view showing the configuration of the cap 15.
4 is an external view and a cross-sectional view showing the configuration of the nozzle 20.
5 is a view for explaining the coupling process of the cap 15 and the nozzle 20.
6 is a partial sectional view showing the positional relationship between the nozzle 20 and the cap 15 before and after the lock.
7 is a plan view showing the positional relationship between the nozzles 20 and the cap 15 before and after the lock.
Fig. 8 is a diagram showing the configuration of the cap 20A and the nozzle 15A of the second embodiment.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described.

Embodiment 1

(Nutrition administration set (1))

1 is a diagram showing the configuration of the nutrient administration set 1 of the first embodiment. Fig. 2 is a diagram showing the respective configurations and connecting methods of the cap 15 and the nozzle 20 in the nutrient administration set 1.

The nutrient administration set 1 shown in FIG. 1 has the nutrient container 10 and the infusion tube 30 which are an example of a medical container as a component. The nutritional container 10 is bonded to two rectangular resin films at the edge, and the flexible bag 100 provided with a port (opening) 101 communicating with the inside on one side of the edge and the port 101. It consists of the connected cap 15. An enteral nutrient of liquid is stored in the bag 100, and the inside of the bag 100 is sealed in the cap 15. As a result, enteral nutrients remain sterile.

In addition, although the flexible container is used as the bag 100 here, this is only an example of a medical container, You may use other well-known medical containers, such as a paper pack, a glass bottle, a metal container, and a syringe.

Naturally, the liquid substance to be stored in the container is not limited to the enteral nutrient, but may be other than intravenous administration, or may be various liquid substances such as various nutritional substances to be administered to the patient.

The cap 15 is integrally formed with the resin material, and is attached to the port (fluid portion) 101 to seal the inside of the bag 100. The cap 15 also serves as a connector for connecting the bag 100 side with the nozzle 20. In the nutrient administration set 1, as shown in Fig. 2, the cap 15 and the nozzle 20 constitute a pair of connector sets connected to each other. In use, when the operator performs a predetermined lock operation to be described later, the internal sealing of the bag 100 is broken according to the operation, so that the nutrient inside the bag 100 is infused into the fluid tube 30 through the cap 15. It becomes possible. For this reason, in the nutrient administration set 1, when connecting the cap 15 and the nozzle 20 at the time of use, the nutrient in the bag 100 does not contact external air. As a result, in the nutrient administration set 1, the nutrient can be kept extremely hygienic until immediately before and during administration, and the patient can be administered a highly stable nutrient.

The fluid tube 30 is a fluid line composed of a resin material such as silicone resin or polyvinyl chloride having appropriate flexibility, and a connector (nozzle 20) for connecting to the cap 15 at an upstream end thereof. ) Is arranged, and an insertion portion (33) having a predetermined port is arranged at the downstream end to administer the nutrient to the patient side. In the middle of the infusion tube 30, a well-known drop cylinder 31 and the clamp 32 are provided.

When using the nutrient administration set 1, the bag 100 is fastened to a predetermined stand with the port 101 facing downward. And the nozzle 20 is connected to the cap 15 connected to the port 101 as shown in FIG. 2, and the said connection state is locked. Thereafter, the nutrient inside the bag 100 is infused through the infusion tube 30 to the patient side.

Hereinafter, the cap 15 and the nozzle 20 will be described in detail.

(Cap (15))

Fig. 3A shows the appearance of the cap (mail connector) 15. Figs. 3B is a cross-sectional view showing the internal structure of the cap 15. In this figure, the cap 15 shown in FIG. 2 is shown in the figure reversed up-down for convenience of description.

The cap 15 is integrally formed using various well-known resin materials, such as polycarbonate (PC), polyethylene terephthalate (PET), polyethylene (PE), and polypropylene (PP). The inside of the cap 15 is hollow as shown in Fig. 3 (b), and functions as a nutrient flow path 159 of the bag 100 at the time of nutrient administration, but before the nutrient administration flow path 159 Is sealed by the sealing part 155.

The cap 15 has a cap main body 150 as a basic structure, and the connection part 1550a-1550c and the sealing part 155 are arrange | positioned here.

The cap body portion 150 has a generally cylindrical cap base 151. In the ceiling surface 152 of the cap base 151, the step part 162 and the protrusion part 160 are formed in succession in order.

The stepped portion 162 is a cylindrical body having a smaller diameter than the cap base 151. A pair of engaging poles 153 and 154 protrude from the side surface near the upper edge of the stepped portion 162.

Each of the engaging poles 153 and 154 is a plate-like body in which a main surface parallel to the ceiling surface 152 is disposed, and a ceiling surface 152 is provided on a main surface facing the ceiling surface 152. The convex portions 1531 and 1541 (1541 are not shown in the figure) are formed to protrude.

The ceiling surface of the stepped portion 162 functions as a contact surface 161 for contacting the contact surface 200 of the nozzle 20.

The protrusion 160 is formed to protrude in the shape of a truncated cone at the center of the contact surface 161. The circumferential surface shape of the protruding portion 160 is formed so as to match the shape of the inner circumferential surface of the nozzle main body portion 21, and the cap 15 and the nozzle 20 are leaked from each other at the contact portion of the protruding portion 160. It is adjusted so that the contact can be made without contact.

The sealing part 155 is provided with three ribs 155a-155c formed so that each end may mutually face each other on the axial center of the protrusion part 160, and it may be formed radially so that it may form an angle of 120 degree between the main surfaces of each other. do. As shown in Fig. 3 (b), the sealing portion 155 is formed at a lower side of each of the ribs 155a to 155c, and is formed at a thickness thinner than the thickness of the member of the cap body 150. (1550a-1550c) (1550b, 1550c are not shown in the figure) and are connected to the cap main body part 150 side (upper surface of the protruding portion 160). Further, just below each rib 155a to 155c, slits 156a to 156c having a rectangular cross-sectional shape are formed so as to communicate with the flow path 159 (see Fig. 6 (b)).

An opening 158 communicating with the flow path 159 is formed inside the cap 15, and a screw 157 used for connection with the port 101 is formed.

In addition, the cap 15 is not limited to the method of fixing with the port 101 side using the screw 157. For example, both caps may be connected by a method other than a screw, such as heat-welding the cap 15 to the port 101. In this case, of course, the screw 157 is unnecessary.

In addition, the cap 15 and the port 101 do not need to be separate bodies, and may be formed integrally.

(Nozzle (20))

The nozzle 20 is formed integrally with the same resin material as the cap 15. Apparently, as shown in Fig. 2, a pair of plate-shaped operation portions are provided so that an operator can pinch and operate the axial nozzle main body portion 21 with a sharply tapered shape on the outer circumferential surface thereof. 205 and 206 are formed. As described above, the inner circumferential surface of the nozzle body 21 has a shape that matches the outer circumferential surface of the protrusion 160. The infusion tube 30 extends from the tip 2033 (lower end in FIG. 2) of the nozzle body 21. On the other hand, the plate-shaped nozzle base 22 is arrange | positioned orthogonally to the axis center of the nozzle 20 at the upper end part of the nozzle main-body part 21 in the infusion direction upstream. One main surface (upper main surface in FIG. 2) of the nozzle base 22 functions as a contact surface 200 in contact with the contact surface 161 of the cap 15.

Fig. 4A is an external view showing the structure of the nozzle 20 as seen from the contact surface 200 side. FIG. 4B is a cross-sectional view showing the internal structure of the nozzle 20 (passing through the coupling groove 2030b and having a 180-degree angle around the axis of the nozzle body 21). 5 (a), 5 (b) and 5 (c) are views showing the engagement process of the engagement pole 153 and the engagement flange 202 as viewed from the axial center side of the cap 15 (the engagement pole 153 for convenience of description). ) Denotes a continuous portion with the stepped section 160 in cross section).

As shown in Fig. 4 (a), the nozzle base 22 has a disk structure having an opening 2031 formed in the center and communicating with the nozzle main body 21 as a basic structure. It has a configuration in which the circumferential portion protrudes outward with the axis of symmetry. In each of the protruding circumferential portions, a pair of coupling flanges 201 and 202 that are engageable with a pair of coupling poles 153 and 154 of the cap 15 are formed.

As shown in Fig. 5A, the engaging flanges 201 and 202 are constituted by the flange bodies 2012 and 2022, the lid portions 2013 and 2023, the engaging pole contact portions 2011 and 2021, and the like.

The flange bodies 2012 and 2022 are ribs formed upright along the edge of the contact surface 200.

The cover parts 2013 and 2023 are provided with contact surfaces along side surfaces of the flange bodies 2012 and 2022 to allow insertion of the engaging poles 153 and 154 between the flange bodies 2012 and 2022 and the contact surfaces 200. It is a plate-shaped body formed at the required height with respect to 200).

The engagement pole contact portions 2011 and 2021 are prismatic pillars which are arranged to protrude from the flange bodies 2012 and 2022 toward the axis center of the nozzle 20 while being continuous with the lid portions 2013 and 2023.

Here, in the continuous portions of the engaging pole contact portions 2011 and 2021 and the cover portions 2013 and 2023, the cover portions 2013 and 2023 are cut in the thickness direction, so that the recess portions 2014 and 2024 (2014) are placed in an arrangement relationship. Not shown). These recessed parts 2014 and 2024 are the site | parts which receive and couple the convex parts 1531 and 1541 of the engaging pole 153 and 154.

In addition, the opening parts 2010 and 2020 are formed in the part of the contact surface 200 just under the lid parts 2013 and 2023 on account of the metal mold | die used when shape | molding the nozzle 20 with resin.

In addition, on the display surface 204 which touches the back surface of the contact surface 200, the Chinese character "문" and the arrow which indicate the rotation direction, etc. are made so that an operator can recognize the direction which locks the nozzle 20 to the cap 15 correctly. Is indicated. Naturally, the content displayed on the display surface 204 is not limited to this description, and the display may be omitted.

On the other hand, inside the nozzle body 21, as shown in Fig. 4 (a) and (b), by cutting the inner wall in the thickness direction in the vicinity of the opening portion 2031, three coupling grooves 2030a to 2030c are formed. It is formed in the same space | interval (at the space which makes the angle of the axial center of the nozzle main-body part 21 mutually 120 degree | times, respectively). The coupling grooves 2030a to 2030c are means for engaging each of the ribs 155a to 155c in the cap 15 with each other.

Between the opening part 2031 and the tip part 2033 of the nozzle main body part 21, the engagement step part 2032 is formed by narrowing an inner diameter in step shape toward the tip part 2033 side. The coupling step 2032 is to engage the end of the infusion tube 30 so as not to fall off.

(About the effect at the time of administration)

The procedure of administering a nutritional supplement to a patient using the nutritional administration set 1 of the above structure is demonstrated.

First, an operator such as a doctor or a nurse hangs one end of the bag 100 on a stand as shown in FIG. 1 and causes the port 101 to face downward together with the cap 15. Meanwhile, one end of the transfusion tube 30 passes through the nozzle 20, and the end of the transfusion tube 30 is coupled to the coupling step 2032 inside the nozzle body 21 and extends from the front end 2033. Alternatively, the nozzle 20 and the fluid tube 30 may be connected in advance in the manufacturing step or before shipping.

On the other hand, the insertion part 33 formed in the other end side of the infusion tube 30 is connected to the predetermined tube tip provided in the patient side.

The operator then holds the nozzle 20 with the contact surface 200 facing upwards, as shown in FIG. 2, so that the engagement flanges 201, 202 do not interfere with the engagement poles 153, 154. The contact surface 200 of the nozzle 20 is brought into contact with the contact surface 161 of the cap 15 while paying attention to the angle around the axial center of (see the first direction indicated by the vertical arrow in FIG. 2). In this way, the operator moves and contacts the nozzle 20 and the cap 15 relatively. At this time, the protruding portion 160 and the sealing portion 155 (ribs 155a to 155c) of the cap 15 are inserted into the nozzle body 21.

By performing the above operation, the outer circumferential surface of the protruding portion 160 is brought into contact with the inner surface of the nozzle main body 21 so that the liquid does not leak, and the inside of the nozzle main body 21 and the protruding portion 160 of the cap 15 and The sealing part 155 is cut off from the outside air, and the connection state of the nozzle 20 and the cap 15 is formed.

Next, in order to fix (lock) the connection state of the nozzle 20 and the cap 15, an operator grasps the operation parts 205 and 206 with a finger, and moves the nozzle 20 along the axial center of the nozzle 20. As shown in FIG. It rotates with respect to the cap 15 by an angle of 60 degrees (refer to the second direction indicated by the curved arrow in Fig. 2). At this time, the outer circumferential surface of the protruding portion 160 and the inner circumferential surface of the nozzle body portion 21 slide relative to each other while rotating relative to each other while maintaining the liquid tight state. In addition, the coupling poles 153 and 154 that were in the upstream of the rotation direction than the cover parts 2013 and 2023 before the rotation operation (see FIG. 5 (a)), according to the rotation operation, the contact surface 200 and the cover part ( It enters between 2013 and 2023, and advances while pushing up the cover parts 2013 and 2023 in the direction away from the contact surface 200 (refer each arrow of FIG. 5 (b)). In addition, the engaging poles 153 and 154 finally come into contact with the engaging pole contacts 2011 and 2021 to prevent their progression. At this time, the convex portions 1531 and 1541 of the engaging poles 153 and 154 engage with the concave portions 2014 and 2024 formed in the cover portions 2013 and 2023 (Fig. 5 (c)). By this combination, the engagement (lock) operation of the nozzle 20 and the cap 15 is completed.

After the lock operation is completed, the nozzle 20 and the cap 15 are firmly coupled in a connected state with each other, so that they do not easily come out.

Here, FIG. 6 (a) is in the locked state, and FIG. 6 (b) is in the locked state, and the arrangement relationship between the nozzles 20 and the cap 15 and the ribs 155a to 155c (sealing part 155) are shown. It is a figure for demonstrating the infusion opening mechanism by this. In this figure, the nozzle 20 is shown as a cross-sectional structure cut through the line passing through the engaging grooves 2030b and 2030c and passing through an angle of 120 degrees around the axis of the nozzle body 21. 7 (a) and 7 (b) respectively look along the axis of the nozzle 20 from the nozzle tip 2033 showing the arrangement relationship between the nozzle 20 and the cap 15 in the locked state before the locked state. This is a front view. In Figs. 7A and 7B, the outlines of the coupling flanges 201 and 202 are shown in dashed lines in the drawings.

As shown in FIG. 2, immediately after the nozzle 20 is connected to the cap 15, the ribs 155a to 155c are coupled to the coupling grooves 2030a to 2030c only inside the nozzle body 21. As shown in FIG. It is in the state (refer FIG. 6 (a), FIG. 7 (a)). In this state, in order for the operator to operate the operation units 205 and 206 and perform the above lock operation, the axis 20 of the nozzle main body 21 with respect to the cap 15 is used as the rotation axis. When the center of rotation is rotated to an angle of 60 degrees, each rib 155a to 155c is centered on the rotary shaft to a position 60 degrees away from the original position with the nozzle 20 in the state of being engaged to the coupling groove 2030a to 2030c. To rotate. According to this rotational movement, the connecting portions 1550a-1550c at the lower portions of the ribs 155a-155c are pushed and broken. Then, the slits 156a to 156c appear to face the inside of the nozzle body 21 (Figs. 6 (b) and 7 (b)). Here, in Fig. 6 (b), with the shaft center of the nozzle body portion 21 as the rotation axis, the ribs 155a to 155c are rotated to an angle of 60 degrees away from the original position so that the connecting portions 1550a to 1550c are broken. As a result, the cap 15 in which the slits 156a to 156c appeared is shown in the figure.

As described above, the ribs 155a to 155c rotate and move, and the connecting portions 1550a to 1550c are broken so that the flow path 159 communicates with the nozzle 20 through the slits 156a to 156c. . In the meantime, the liquid-tight state between the outer peripheral surface of the protrusion part 160 and the inner peripheral surface of the nozzle main body part 21 is maintained. As shown in Fig. 1, since the bag 100 is hung with the cap 15 downward, the nutrient in the bag 100 flows through the interior of the cap 15 and the nozzle body 21 by its own weight. It is possible to administer to the patient side through the tube (30). In this way, in the nutrient administration set 1, administration of the nutrient can be started with the completion of the lock operation of the nozzle 20 and the cap 15, so that the internal sealing of the bag 100 by the cap 15 is released. Even when nutrients are always blocked from outside air. Therefore, when the nutrient is administered to the patient, it is surely prevented that impurities are mixed in the nutrient from the outside air through the slits 156a to 156c, which is very effective in hygiene management. The nutrient administration set 1 is different from the conventional configuration in which it is necessary to make a hole in the cap before connecting the cap to the nozzle, and after the nozzle 20 and the cap 15 are connected, and the nozzle 20 and the cap are connected. At the same time that the lock of the cap 15 can be released at the same time as the lock of (15), the superior safety can be achieved.

In addition, the nozzle 20 and the cap 15 are dedicated combinations with each other, and each of the precisely configured coupling portions (here, coupling poles 153 and 154 and coupling flanges 201 and 202, sealing portions 155 and coupling grooves) By using (2030a-2030c), it is possible to connect and lock normally. By requiring such precise connection selectivity, even if an operator mistakenly attempts to connect the cap 15 with a separate infusion line arranged on the patient, the connection is impossible, so that the problem of incorrect connection can be reliably prevented. The nutrient administration set 1 can exhibit high safety also in this regard.

In the cap 15, the connecting portions 1550a to 1550c are completely broken and the sealing portions 155 are separated by the rotation of the nozzle 20. However, the ribs 155a to 155c are coupled to the grooves 2030a. Since it is supported while being coupled to 2030c, the sealing part 155 separated from the cap 15 does not flow to the fluid tube 30 side.

In addition, it is good to move these relative to each other about the engagement operation | movement of the nozzle 20 and the cap 15, and the opening operation | movement of the flow path 159 accordingly. Therefore, you may perform any operation | movement at the time of moving the cap 15 with respect to the nozzle 20, or moving the nozzle 20 with respect to the cap 15. FIG.

EMBODIMENT OF THE INVENTION Hereinafter, other embodiment of this invention is described centering on difference with Embodiment 1. FIG.

Embodiment 2

FIG. 8 shown next shows Embodiment 2 in which the nozzle 20A side is configured as a male connector and the cap 15A side is a female connector. In Fig. 8, for convenience of explanation, the nozzle 20A is shown above and the cap 15A is shown below. However, when used, as shown in Figs. 1 and 2, the vertical relationship between the arrangements is reversed.

Unlike the first embodiment, the cap 15A is formed by forming an upper surface of the cylindrical cap base 151A as the contact surface 161A, and having a tubular portion 163 upright to surround the circumference of the contact surface 161A. Is done. Here, by fitting the inner diameter of the tubular portion 163 to the outer diameter of the main body portion 21A of the nozzle 20A, the main body portion 21A of the nozzle 20A is inserted (or press-fitted) into the tubular portion 163. )do. A pair of engaging poles 153A and 154A having the same configuration as the above 153 and 154 is formed around the opening 164 of the tubular portion 163. At the center of the contact surface 161A, a sealing portion 155A equal to 155 has 1550a? The same connection part as 1550c is formed, and the slit which communicates with the flow path of the cap 15A is formed just under each rib 155a-155c. The flow path and the slit are respectively 159 and 156a? It is the same structure as 156c.

On the other hand, the nozzle 20A is composed of a main body portion 21A and a pair of coupling flanges 201A and 202A.

21 A of main-body parts are cylindrical bodies, The contact surface 200A which contacts the contact surface 161A of the cap 15A is arrange | positioned at the lower surface, and the display surface 204A is arrange | positioned at the upper surface.

The same letter and arrow as 204 are displayed on the surface of the display surface 204A, and the fluid tube 30 is connected to the center thereof.

The coupling flanges 201A and 202A are the same mechanisms as 201 and 202, and can be engaged with the coupling poles 153A and 154A, and are formed at equal intervals on the side surface of the main body portion 21A. In the configuration shown in Fig. 8, the components of the engaging flanges 201A and 202A are covered by a box-shaped frame and are not visible from the outside.

In addition, in the structure shown in FIG. 8, although the cylindrical rib (cylindrical part) surrounding the circumference | surroundings of the display surface 204A is formed upright, this is not essential.

In the center of the contact surface 200A, a radial engagement groove 2030A having a shape that can engage with each of the ribs 155a to 155c of the sealing portion 155A is formed.

In addition, in the main body portion 21A, three nozzle holes L1, L2, and L3 are formed in total so as to pass through the contact surface 200A and the display surface 204A along the axial direction of the cylinder. The nozzle holes L1, L2, and L3 communicate with the slit formed just below the sealing portion 155A after each opening on the contact surface 200A locks the nozzle 20A to the cap 15A. In addition, each opening portion on the display surface 204A side is formed to communicate with the interior of the infusion tube 30.

Although the nozzle holes L1, L2, and L3 have a circular cross sectional shape here, the nozzle holes L1, L2, and L3 may have a rectangular cross sectional shape or may be adjusted such as to increase the number of holes in the nozzle.

Even when the cap 15A and the nozzle 20A having the above configuration are used, the same effects as those of the nutrient administration set 1 can be obtained.

That is, when the operator connects the nozzle 20A to the cap 15A, the coupling poles 153A and 154A and the coupling flanges 201A and 202A are careful not to interfere with each other, and the main body portion 21A of the nozzle 20A. Is pressed into the tubular portion 163 of the cap 15A. Then, the seal 155A is coupled to the coupling groove 2030A, and the nozzle body 21A is completely press-fitted into the tubular portion 163 until the contact surfaces 200A and 161A contact each other.

By this operation, the side surface of the nozzle main body portion 21A is in contact with the inner surface of the tubular portion 163 so that the liquid does not leak, and the nozzle 20A and the cap 15A are connected.

Subsequently, while maintaining this connection state, the operator rotates the nozzle 20A to an angle of 60 degrees around the axis center of the nozzle 20A to rotate the engaging poles 153A and 154A, respectively, to the engaging flanges 201A and 202A. Lock operation. According to this locking operation, the sealing portion 155A coupled to the coupling portion 2030A rotates, and the connecting portion is broken so that the slit comes into contact with the nozzle holes L1-L3. Thereby, the nutrient in the bag 100 can be distributed to the infusion tube 30 side through the nozzle hole L1-L3.

By the above operation, also in Embodiment 2, when using it similarly to Embodiment 1, since the nutrient in the bag 100 can release a seal | sticker of 15 A of caps, without contacting an external air, contamination of the nutrient by mixing of foreign substances is prevented. The nutrient can then be administered to the patient hygienically. In addition, since the cap 15A is always unsealed in a state where the cap 15A is connected to the nozzle 20A, the problem of nutrients leaking out of the slit or the like of the cap 15A can also be prevented. Moreover, in Embodiment 2, since the cap 15A and the nozzle 20A have precise connection selectivity with each other in structure, the effect which reliably prevents the problem of incorrectly connecting the cap 15A to another fluid tube is also exhibited.

In addition, although the structure which forms the coupling groove 2030A and nozzle hole L1-L3 in the nozzle 20A was illustrated in FIG. 8, the inside of the nozzle main-body part 21A like the nozzle 20 of Embodiment 1 was illustrated. A cylindrical space (euro) communicating with the infusion tube 30 may be formed in the inner wall, and coupling grooves 2030a to 2030c that may engage with the ribs 155a to 155c may be formed on the inner wall of the cylindrical shape.

<Other matters>

Although the sealing part 155 formed by combining three ribs 155a-155c radially was shown in the said Embodiment 1, the number of ribs formed radially is not limited to this, One or two may be sufficient. It may be four or more.

In addition, instead of forming the rib, the rod is formed by standing a rod having a longitudinal direction in parallel with the axis of the nozzle, and forming a connecting portion consisting of a thin part around the lower portion of the rod, A hole corresponding to the slit may be formed directly below. In this case, the nozzle is provided with a recess into which a rod can be inserted in place of the engaging groove, and the rod is bent from the bottom and a slit (hole) appears in accordance with the locking operation to release the cap. Alternatively, a combination of a sealing portion having a simple three-dimensional shape (cuboid shape, polygonal column shape, etc.) and a coupling groove that can be coupled thereto may be used. However, even when either of these configurations is employed, the liquid-tight state is maintained even after the nozzle is connected to the cap, and care must be taken to ensure that the inside of the nozzle body portion through which the flow path is opened does not come into contact with outside air.

Moreover, in order to improve the liquid tightness between a cap and a nozzle, you may provide sealing members, such as a packing, in any one of the contact surface of a cap, the circumferential surface of a protrusion, etc., for example. Moreover, the surface treatment for making the contact surface of a cap and a nozzle flat can also be performed.

In addition, with respect to the cap, even if a sealing portion is formed directly on the contact surface without forming a protruding portion on the contact surface, it is possible to prevent the flow path from contacting the outside air when the flow path is opened. However, even before locking, in order to ensure excellent liquid tightness between the cap and the nozzle, it is preferable to form a protrusion and increase the liquid tight contact area between the cap and the nozzle. For this reason, like Embodiment 2, it is preferable to make a structure, such as a cylindrical part and a nozzle main-body part contacting so that a liquid does not leak.

The nozzle and the cap are not limited to the configuration in which the coupling pole and the coupling flange are coupled to each other, and other coupling means may be used. For example, the cap and the nozzle may be joined by screwing.

The connector set of the medical container of the present invention is the highest in the case of using both the male connector and the female connector manufactured together as a dedicated combination such as the illustrated caps 15 and 15A and the nozzles 20 and 20A. It is effective. However, even when the caps 15 and 5A are attached to the bag 100 as a single body, the caps 15 and 5A may be used until they are locked to the nozzles 20 and 20A by employing the seals 155 and 55A. It has a great advantage in that it can exhibit sealing property.

The present invention has excellent applicability, such as being widely applicable to a case where a liquid substance stored in a medical container is administered to a patient using a tube in enteral nutrition therapy.

L1, L2, L3: nozzle hole
1: nutrient dosage set
10: nutrient container (medical container)
15 cap (mail connector)
15A: Cap (female connector)
20 nozzle (female connector)
20A: Nozzle (Mail Connector)
21, 21A: nozzle body
22: nozzle base
30: Sap Tube
31: Dropping container
32: clamp
33: insertion unit
150: cap body portion
151, 151A: Cap Donation
153, 153A, 154, 154A: coupling pole (first coupling part)
155, 155A: Seal
155a? 155c: rib
156a? 156c: slit
157: screw
158, 2031: opening
159: Euro
160: projection
161, 161A, 200, 200A: contact surface
163: barrel
164: opening
201, 201A, 202, 202A: coupling flange (second coupling part)
203: nozzle body part
204, 204A: display surface
205, 206: control panel
1550a? 1550c: Connection part (thin part)
1531, 1541: convex
2010, 2020: hole
2011, 2021: Coupled pole contact
2012, 2022: Flange Body
2013, 2023: cover part
2014, 2024: recess
2030a? 2030c, 2030A: Combined Groove
2032: coupling step
2033: tip

Claims (7)

A first connection port connected to a medical container side for storing a liquid and having a first coupling portion, and connected to a fluid tube side; A connector set for a medical container including a second connector having a second coupling portion that can be engaged with one coupling portion,
The first connector is provided with a sealing portion for sealing the liquid substance.
With the first and second connectors in contact with liquid,
By moving the first connector and the second connector relative to each other, the connector set of the medical container, characterized in that the engagement of the first coupling portion and the second coupling portion and the release of the seal by the sealing portion together.
The method of claim 1,
The first connector is provided with an axial body portion, and the first connector and the second connector are relatively moved along the axial direction so that the liquid does not leak and is in contact with the axis. By moving the first connector and the second connector to rotate relative to each other, the connector set of the medical container, characterized in that the first coupling portion is engaged with the second coupling portion and the seal is released by the sealing portion. .
The method of claim 1,
The first connection port is connected to the main body portion in which a flow path through which the liquid substance flows, and the sealing portion is connected by a connecting portion having a thickness smaller than that of the main body portion.
The main body portion and the sealing portion and the connecting portion are integrally formed by the same member,
The flow path is opened by moving the seal with the movement and breaking the connection part.
A connector set of a medical container, characterized in that.
The method of claim 3,
The sealing portion has one or more ribs connected to the main body portion by the connecting portion,
Inside the second connector is formed a coupling groove that can be coupled to the rib,
In the movement, the rib coupled to the coupling groove is broken together with the second connector.
A connector set of a medical container, characterized in that.
The method of claim 4, wherein
The seal is formed by radially symmetrically forming three ribs
A connector set of a medical container, characterized in that.
The method of claim 1,
The main body portion has a projection that can be inserted without leaking liquid with respect to the second connector, and the sealing portion is provided on the projection and is inserted into the second connector at the time of insertion.
A connector set of a medical container, characterized in that.
As a connection port which can seal the medical container in which the liquid substance was stored, and can connect the said medical container and an infusion tube,
A sealing portion for sealing the liquid substance is joined by a connecting portion having a thickness thinner than that of the main body portion, wherein the sealing portion for sealing the liquid substance is formed in a main body portion in which a flow path for distributing the liquid substance is formed.
A connecting port, characterized in that the passage is opened by pushing the sealing portion to break the connecting portion.

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