JP2001178831A - Connecting instrument and connecting tool for liquid medicine container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connecting instrument which can be used in parallel for performing an operation for mixing and injecting medicines and an operation for connecting a tube for administering an infusion by a simple operation. SOLUTION: The connecting instrument for an infusion container which is the connecting instrument performing transferring of the liquid medicine through a double head needle and is provided with the double head needle on a connecting tool body made of a rigid plastic and wherein each needle pipe is formed in such a way that it is positioned at the center of a cylindrical body with a height by which the apex is not projected out and with an inner diameter into which a discharge liquid port part or a sealing part for an opening of an infusion administering set can be inserted and a hooking part for increasing frictional resistance is provided on the inner wall of the cylindrical body and the needle pipe on the side for connecting the infusion set is covered with a rubber sheath.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for a chemical solution container used for discharging a chemical solution from a chemical solution container or for injecting a chemical solution into the chemical solution container, and a connecting tool connected to the connecting device. It is. More particularly, the present invention relates to a device for safely injecting and co-injecting a drug solution by safely connecting an infusion set or a pre-filled syringe without danger of puncture or the like in an infusion container.

[0002]

2. Description of the Related Art Conventionally, infusion of an infusion solution is performed by piercing a plastic or metal bottle needle attached to the tip of an administration tube through a drain port (also referred to as a co-injection port) of an infusion bag. Has been made through. There is no problem with penetrating the bottle needle into the bag as long as you become accustomed to it. However, beginners and elderly people require considerable force and cannot penetrate perpendicularly to the drainage port surface. In the case of the bottle needle, the puncture was not vertical, so the infusion bag was damaged,
If you do, there is a danger that fluid will leak from the infusion bag.
With the spread of home medical care, patients need to pierce the bottle needle into the infusion bag, and it has been desired to be able to more easily and safely connect the administration tube to the infusion bag.

[0003] When administering an infusion solution, it is usual to inject a drug such as a vitamin into a bag. Conventionally, a drug such as a vitamin contained in a drug container such as a vial is suctioned and collected with a syringe. Then, it is injected into the infusion bag and mixed. In particular, when the drug is a powder, this operation is performed after dissolving with a small amount of the infusion agent extracted from the infusion bag, which is a very complicated operation. In addition, in the high-calorie infusion therapy, the number of types of drugs may be 10 or more, which is extremely labor-intensive.

In recent years, prefilled syringes in which a syringe is pre-filled with a drug have been developed to make it easy and quick to inject such a complicated drug solution into an infusion bag. For co-injection of a drug into a drug solution bag, even with a very useful prefilled syringe, the operation of piercing the puncture needle for transferring the drug solution is the same as the above-described operation of piercing the bottle needle, and especially for home medical care. In the field, it is predicted that the patient or the family of the patient will perform the work, and the same problem as in the case of piercing a bottle needle will occur.

[0005]

As described above, there are various problems in co-injecting a drug into an infusion or connecting an administration tube, and this problem becomes more serious especially in home treatment. ing.

Accordingly, it is an object of the present invention to perform an operation of co-injecting a necessary drug into an infusion bag using a pre-filled syringe at the time of administering an infusion solution, and to connect an infusion administration tube performed thereafter to the infusion bag. The purpose of the present invention is to provide a connection device that can be used in common when connecting an infusion bag to a prefilled syringe and an infusion administration tube so that the operation can be performed with a simple operation consistently. It is an object of the present invention to provide a connection device which is free from accidents such as breakage of an infusion bag at the time of use, and which can be used by a medical worker or a patient who is engaged in home medical care with ease.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the object, according to the present invention, a connecting device main body and a drain port of a chemical solution container which is supported by the connecting device main body and which has one end side can be pierced. A first needle tube portion, and a double-ended needle having a second needle tube portion that can penetrate the opening sealing portion of the connection tool on the other end side and communicates with the first needle tube. A connection device for a drug solution container that transfers a drug solution by communicating the inside of a container and a connection tool, wherein the connection device main body includes a first needle tube portion inside thereof, and a tip of the first needle tube portion is provided. A first cylindrical body having a height that does not protrude, an inner diameter capable of inserting the drain port portion of the drug solution container, and a locking portion that prevents the drain port portion from falling off when the drain port portion is inserted; The second needle tube portion is contained inside thereof, and the height at which the tip of the second needle tube portion does not protrude; And a sealing portion interpolation possible inner diameter and a second cylindrical body cylindrical having a locking portion for preventing falling out upon insertion of the opening seal portion of the connecting tool, first of double-ended needle 2
And a covering member that can be pierced by the second needle tube portion.

Further, the present invention relates to a connecting tool inserted into the second cylindrical body of the connecting device for a medical solution container, wherein a second tool is provided on one end side.
And a drug solution provided with an opening sealing portion through which the drug solution can be transferred through the second needle tube portion and a dosing needle for drug solution dosing or a needle connecting portion connectable to the dosing needle at the other end side. An administration tube set, wherein the opening sealing portion has an elastic member capable of being pierced and an elastic member fixing device for fixing the elastic member to one end side opening portion of the medical solution administration tube, and the elastic member fixing device is provided on the top surface. A through-hole through which the second needle tube can pass, a connecting portion for connecting the elastic member fixing device to the opening of the drug solution administration tube, and engagement with the locking portion of the second cylindrical body provided on the outer surface of the elastic member fixing device And a possible locking portion.

[0009] The present invention also provides a drug solution administration system provided with a connection device for a drug solution container of a war record and a drug solution administration tube set according to claim 2. . Further, the present invention relates to a connecting tool inserted into the second cylinder of the above-mentioned connecting device for a drug solution container, wherein the distal end of the syringe outer cylinder is sealed, and the second needle tube is inserted when the syringe is inserted into the second cylinder. An opening sealing portion through which a chemical solution can be transferred, a gasket sealing the other end opening of the syringe outer cylinder, and a plan connected to the gasket so that the gasket can slide in the syringe outer cylinder. A prefilled syringe comprising a jar and a medicine filled in a space formed by an opening sealing portion and a casquette, wherein the opening sealing portion includes a pierceable elastic member and an elastic member, An elastic member fixing device for fixing the elastic member to the portion, a through hole through which the second needle tube can pass through the top surface, and a fixing member for fixing the elastic member by covering the distal end of the syringe outer cylinder. A crown portion and a locking portion of the second cylinder provided on the outer surface of the crowned portion There is provided a prefilled syringe with engageable locking portion.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an external view of a connecting device 1 for an infusion container according to the present invention, in which a first cylindrical body and a second cylindrical body are formed of a transparent resin. FIG. 2 is a partial cross-sectional view of a part involved in connection of a tube set for infusion administration which is a connection tool of the present invention. FIG. 3 is an external view of a prefilled syringe which is a connection tool of the present invention. FIG. 4 is an external view of the infusion container connecting device of the present invention connected to the drainage port portion of the infusion container, and a transfusion administration tube set connected to the infusion container connecting device.

As shown in FIG. 1, a connecting device main body 2 of a connecting device 1 for an infusion container has a first needle tube portion 3 for piercing a drainage port portion of a medical solution container, and an opening sealing of the connecting device. A double-ended needle 5 having a second needle tube portion 4 for piercing the portion is fixedly held. The first needle tube 3 and the second needle tube 4 are in communication with each other, and can communicate with the drug solution container and the inside of a prefilled syringe or infusion administration tube which is a connecting tool via the double-ended needle 5, and can transfer the drug solution. it can. The double-ended needle 5 can be made of metal such as stainless steel,
A needle tube made of hard plastic resin such as S or polyester resin may be used. However, since the second needle tube punctures a relatively small rubber stopper such as a tip sealed portion of a prefilled syringe or a tip opening sealed portion of an infusion administration tube, the second needle tube is a metal needle tube having a small resistance at the time of piercing. Is preferred. When a metal needle is used, a needle tube having a thickness of 18 gauge is preferable in consideration of the transfer efficiency of a chemical solution and the like.
A large number of prefilled syringes are pierced into the second needle tube for co-injecting the drug into the infusion solution, and thereafter, an infusion solution administration tube is pierced and connected to administer the drug solution. Is provided with a sheath member 6 made of rubber, latex, elastomer or the like so as not to leak from the needle tube. When the second needle tube is pierced with a prefilled syringe or the like, the needle tube protrudes by penetrating the sheath-shaped enclosing member 6, and when the prefilled syringe or the like is removed, the needle tube is wrapped again with the sheath-shaped enclosing member 6. In addition, since it is shut off from outside air, liquid leakage is suppressed.

The connecting device main body 2 is formed with a first cylindrical member 7 having a cylindrical shape centered on the first needle tube portion 3, and the cylindrical member is used by an operator to pierce the needle tube into the infusion container. Do not touch the needle tube with your hands or fingers to avoid injury or contaminate the needle tube, or place the connection device on the work tray or bedside while preparing to pierce the infusion container. It is necessary that the height of the tip of the needle tube does not protrude so that it does not come into direct contact with other objects. The cylindrical body 7 is formed to have an inner diameter slightly larger than the outer diameter of the drainage port so that it can be inserted into the drainage port of the infusion container. When the needle tube is pierced into the drain port, the tubular body also serves as a guide for the needle tube, and prevents the needle tube from being bent and punctured to damage the infusion container. In order to prevent the liquid drain port from dropping off on the inner wall surface of the cylindrical body 7, it is preferable to provide an engaging means such as a tapered taper process, a rough surface process, a projection, an annular rib, etc. to increase the frictional resistance.

On the second needle tube side of the connection device main body 2, a second
A second cylindrical body 8 having a cylindrical shape centered on the needle tube portion 4 is formed, and the cylindrical body 8 pierces the needle tube into a prefilled syringe or a distal end sealing portion of a tube set for infusion administration as a connecting tool. Do not touch the needle tube with your hands or fingers to avoid injury or contamination of the needle tube, and perform the infusion at the preparation stage to pierce the sealed end of the opening of the prefilled syringe or tube set for infusion administration. It is necessary that the height of the distal end of the needle tube does not protrude so that the needle tube does not directly contact other objects even when the container connecting device 1 is placed on the work tray or bed side. Normally, since this operation is performed after the first needle tube portion 3 is pierced into the drainage port portion of the infusion container, it is placed in a state of being connected to the infusion container.

The cylindrical body is formed so as to have an inner diameter slightly larger than the outer diameter of the distal opening sealing portion so that the cylindrical opening can be inserted into the distal opening sealing portion of the prefilled syringe or the infusion administration tube set. When piercing the needle tube into the sealed end opening of the prefilled syringe or the tube set for infusion administration, the cylinder 8 also serves as a guide for the needle tube, and the needle tube bends and punctures to damage the prefilled syringe or the tube set for infusion administration. It also prevents In order to prevent the prefilled syringe and the tube set for infusion administration from falling off on the inner wall surface of the cylindrical body 8, a frictional resistance may be increased by providing a means such as a tapered taper processing, a polished surface processing, a projection, and an annular rib. It is suitable.

The connecting device main body 2, the first cylindrical body 7 and the second cylindrical body 8 are all formed of a hard plastic resin such as polypropylene, ABS, polyester resin and the like. The connecting device main body 2, the first cylindrical body 7, and the second cylindrical body 5 may be separately molded and adhered, but integrally molded is preferable in terms of strength and cost. It is preferable that the connection device main body 2 be transparent or translucent because the piercing state of the needle tube can be confirmed. In the case where a resin such as a white pigment is inserted and the inside of the resin is not transparent, a slit-like cut may be made in the cylindrical body so that the piercing state can be checked.

An infusion administration tube set 9 as a connection tool shown in FIG. 2 is inserted into the second cylindrical body 8 of the drug solution connection device 1 and punctured by the second needle tube 4 to communicate with the infusion container. The infusion is administered. Tube set 9 for infusion administration. An opening sealing portion 10 that is inserted into the second cylindrical body 8 and penetrated by the second needle tube portion 4 is provided at the distal end of the tube.

Although not shown in the tube set 9 for infusion administration, like the commonly used administration tube, a drip tube, a clamp, and a dosing needle for administering a medicinal solution or a male connector connectable to the dosing needle at the other end. Etc. are provided.

The opening sealing portion 10 is made of rubber or elastomer having puncture resistance and seals the opening of the tube with an elastic member 11 which is provided with a through hole 12 on the top surface and is liquid-tightly connected to the opening of the administration tube. And is sealed by an elastic member fixture 14 provided with a connection portion 13 for connection. The elastic member fixing member 14 is formed of a hard plastic resin such as polypropylene, ABS, and polyester resin. Further, since the top surface has a through hole, it can be inserted into the second cylindrical body and punctured by the second needle tube without any problem. Further, since the elastic member fixing device 14 fixes the elastic member 11 so as to press the elastic member 11 around the through hole, a good degree of adhesion and excellent airtightness can be obtained.

The elastic member and the elastic member fixing member may be formed as separate members and combined, but it is preferable that the elastic member and the elastic member fixing member are integrally formed as in injection molding since liquid leakage does not easily occur. The tube and the opening sealing member 11 may be simply connected, but are preferably fixed by fusion, adhesion, or the like.
It is preferable that the plastic film be weakly heat-sealed on the top surface of the elastic member fixing device so that the plastic film can be easily peeled off so that the elastic member does not touch the outside air until immediately before use.

It is preferable to provide a locking member on the outer surface of the elastic member fixing device 14 for engaging with a locking portion formed on the inner wall surface of the second cylindrical body 8 for preventing falling off.

As shown in FIG. 3, it is also an effective method to provide a cylindrical body 15 in which the second cylindrical body 8 can be inserted and locked to increase the degree of contact and prevent the second cylindrical body 8 from falling off. In such a case, it is preferable to provide the engaging means 16 such as irregularities, protrusions, ribs, and threading on the outer wall surface of the second cylinder 8 and the inner wall surface of the cylinder 15 into which the second cylinder 8 is inserted. is there.

A prefilled syringe 17, which is a connection tool shown in FIG. 3, is inserted into the second cylinder 8 of the connection device 1 for a medical solution container, punctured by the second needle tube 4, communicated with the infusion container, and infused with the infusion solution. Drugs necessary for treatment are co-injected into the drug and administered. The prefilled syringe 17 is. The distal end opening of the syringe outer cylinder 18 is sealed with an opening sealing portion 19, and the opening on the rear end side is sealed with a gasket 20. A plunger 21 is connected to the gasket 20 so that the plunger 21 can be moved back and forth in the syringe barrel to inject and discharge the medicine. And, in the space formed by the opening sealing portion and the casquette, drugs such as vitamins, antibiotics, antihypertensive agents, anticoagulants, inotropic agents, and hypoglycemic agents are sealed.

The opening sealing portion 19 is made of rubber or elastomer having puncture resistance, and seals the elastic member 23 for sealing the opening of the syringe outer cylinder 18 with the through hole 23 provided on the top surface. Cap 2 to be covered in a cap
4 and is fixed by pressing it down with an elastic member fixing member 25 made of. The elastic member fixture 25 is made of polypropylene, ABS,
Molded with hard plastic resin such as polyester resin. Further, since the top surface has a through hole, it can be inserted into the second cylindrical body and punctured by the second needle tube without any problem. Further, since the elastic member fixing portion 25 wraps and fixes the elastic member 22 in a cap shape, a good degree of adhesion and excellent airtightness can be obtained.

The elastic member and the elastic member fixing member may be formed as separate members and combined, but it is preferable that the elastic member and the fixing member are integrally formed as in injection molding since liquid leakage does not easily occur. The syringe barrel and the opening sealing member 19 are screwed in,
It is fixed by luer lock, fusion, adhesion and the like. The plastic film can be easily peeled off on the top surface of the crowned member so that the elastic member does not touch the outside air until immediately before use.
It is preferable to heat-soak it so weakly.

It is preferable to provide a locking member on the outer surface of the elastic member fixing device 125 which engages with a locking portion formed on the inner wall surface of the second cylindrical body 8 for preventing falling off. Unlike in the case of the tube set, a meeting that can be removed relatively easily is sufficient.

Next, a connecting device body 2 made of polypropylene and a double-ended needle made of stainless steel and a rubber sheath, which will be described in terms of use, were used to prepare the connecting device 1 for an infusion container shown in FIG. The first needle tube 3 of the connection device was pierced into the drainage port of the infusion bag containing the high-calorie infusion solution suspended on the infusion stand. Next, prefilled syringe 2 with vitamins
The book was continuously co-injected through the second needle tube 4. The prefilled syringe was withdrawn, the infusion bag was removed from the infusion stand with the connection device attached, and the bag was inverted several times to complete the preparation of the infusion solution. Then, connect the tube set for infusion administration with the tube for the infusion pump to the connection device, and confirm that the tube is closed by the roller clamp attached to the tube set)
After the liquid was sufficiently fixed by the lock connector, the infusion pump device was set. Next, an operation (pumping operation) of compressing and releasing the drip tube with a finger was performed a plurality of times, the infusion solution in the infusion bag was introduced into the drip tube, and about half of the inner volume of the infusion tube was filled with the infusion solution. Next, maximize the pump flow rate,
The entire tube set for the pump was filled with the infusion solution, and the priming operation was completed.

Next, the tube is opened by the existing roller clamp for the administration tube, and the pump discharge amount is set to 10%.
The liquid was continuously fed at 0 ml / hour for 10 hours, and the state of the connection with the connecting device for the infusion container and the tube set for administration, the outflow state of the air, the confirmation of the leak, and the amount of the liquid fed were measured. As a result, there was no problem with the connection state of the infusion container connecting device and the holding state of the administration tube, outflow and leakage of air, and the total amount of liquid delivered was within the accuracy of the pump.

[0029]

As described in detail above, according to the present invention, the co-infusion of a drug into an infusion or the connection of a tube set for administration is easy, simple and convenient not only in hospitals but also in home therapy at home. It is possible to provide a connecting device for an infusion container and a connecting device comprising an infusion administration tube set or a prefilled syringe, which can be safely and safely performed for infusion therapy.

By using the connecting device for infusion container and the infusion administration tube set or the prefilled syringe of the present invention, it is possible to perform the operation of co-injecting the necessary medicine using the prefilled syringe into the infusion bag, which is performed when administering the infusion solution. Since the subsequent operation of connecting the tube set for infusion administration to the infusion bag can be performed with a simple and consistent operation, even those who are unfamiliar with infusion therapy can injure their hands and fingers with the needle tube or contaminate the needle tube. Also, there is no need to worry about damaging the infusion container or the tube set for infusion administration and damaging the infusion container, and there is no problem in terms of safety and hygiene.

When the infusion container connecting device and the infusion administration tube set or the prefilled syringe of the present invention is used, the infusion solution can be safely received by the patient without the liquid leakage or the disengagement of the administration tube set. it can.

[Brief description of the drawings]

FIG. 1 is an external view of a connecting device for an infusion container of the present invention.

FIG. 2 is a partial cross-sectional view of the connecting device for an infusion container in FIG. 1;

FIG. 3 is a partial cross-sectional view of a part related to connection of a tube set for infusion administration which is a connection tool of the present invention.

FIG. 4 is an external view of a prefilled syringe which is a connection tool of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 connection device 2 connection device main body 3 first needle tube 4 second needle tube 5 double-ended needle 6 sheath-shaped wrapping member 7 first cylinder 8 second cylinder 9 infusion set tube set 10 opening sealing member 11 elasticity Member 12 Through hole 13 Connection portion 14 Elastic member fixing member 15 Cylindrical body 16 Locking portion 17 Prefilled syringe 18 Syringe outer cylinder 19 Opening sealing portion 20 Gasket 21 Plunger 22 Elastic member 23 Through hole 24 Covered portion 25 Elastic member fixing member 26 Drainage port

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4C066 AA07 AA09 BB01 CC01 DD08 EE14 FF03 FF05 FF06 GG20 HH12 JJ06 JJ07 JJ10 LL11

Claims (4)

[Claims] 1. A connecting device main body, a first needle tube portion supported by the connecting device main body and penetrable to a drain port portion of a drug solution container at one end side, and an opening sealing portion of a connecting tool at the other end side. A double-ended needle having a second needle tube portion which is piercable and communicates with the first needle tube; and a chemical liquid container for transferring the chemical liquid by communicating the chemical liquid container with the inside of the connection tool via the double-ended needle. A connection device, wherein the connection device main body includes a first needle tube portion inside thereof;
A cylindrical shape having a height at which the distal end of the first needle tube does not protrude, an inner diameter capable of inserting the drain port of the drug solution container, and a locking portion for preventing the drain port from being dropped when the drain port is inserted. A first cylindrical body and a second needle tube portion contained therein, a height at which a tip of the second needle tube portion does not protrude, an inner diameter capable of inserting an opening sealing portion of the connection tool, and an opening of the connection tool; A cylindrical second cylindrical body having a locking portion for preventing the sealing portion from falling off when the sealing portion is inserted; and a second needle tube portion of the double-ended needle, which can be pierced by the second needle tube portion. And a member for connecting a chemical solution container. 2. A connecting tool inserted into the second cylindrical body of the connecting device for a chemical solution container according to claim 1, wherein the connecting tool is inserted into the second cylindrical body at one end side, and is connected to the second cylindrical body via the second needle tube. A drug solution administration tube set including a transferable opening sealing portion and a dosing needle for drug solution dosing or a needle connection portion connectable to the dosing needle on the other end side, wherein the opening sealing portion is piercable. An elastic member, an elastic member fixing device for fixing the elastic member to one end side opening of the chemical solution administration tube, the elastic member fixing device has a through hole through which a second needle tube can pass through a top surface, and a medical solution administration device. A connecting portion for connecting the elastic member fixing device to the opening of the tube; and a second portion provided on the outer surface of the elastic member fixing device.
And a locking portion engageable with the locking portion of the cylindrical body. 3. A drug solution administration system comprising: the drug solution connection device according to claim 1; and the drug solution administration tube set according to claim 2. 4. A connecting tool inserted into the second cylindrical body of the connecting device for a chemical liquid container according to claim 1, wherein the distal end of the syringe outer cylinder is sealed and the second tool is inserted into the second cylindrical body. An opening sealing portion capable of transferring a chemical solution through the needle tube portion, a gasket sealing the other end opening portion of the syringe outer cylinder, and a gasket connected to the gasket and allowing the gasket to slide in the syringe inner cylinder. A prefilled syringe, wherein a drug is sealed in a space formed by the opening sealing portion and the casquette, wherein the opening sealing portion has a pierceable elastic member and the elasticity. An elastic member fixing device for fixing the member to the distal end portion of the syringe outer cylinder, the elastic member fixing device has a through-hole through which the second needle tube can pass through on the top surface, and a crown covering the distal end portion of the syringe outer cylinder. A crown portion for fixing the elastic member, and a second portion provided on an outer surface of the crown portion. Prefilled syringe with a locking portion of the cylindrical body engageable with the locking portion.