JP2005211336A - Liquid guide appliance storage body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid guide appliance storage body, for example, easily and surely performing an operation of installing the liquid guide appliance to a syringe having a connecting part with a luer-lock in its tip. <P>SOLUTION: This liquid guide appliance storage body 1 is provided with a liquid guide appliance 10 used by being installed on the tip part of the syringe and a case 20 storing the liquid guide appliance 10 in its inside and having an opening 21 for inserting the tip of the syringe in its base end. The liquid guide appliance 10 is supported to the case 20 so as not to move in the tip direction and not to rotate with its stored state in the case 20. The liquid guide appliance 10, in this state, is supported to the case 20 in a pair of projecting parts 14 projectingly formed in its outside with its tip being in non-contact with the tip inner face of the case 20. The opening 21 of the case, in its state, is airtightly sealed by a film 30. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a liquid guiding device storage body.

  Prior to the administration of an infusion solution to a patient, drugs such as vitamins, heparin, and antibiotics are added to the infusion solution filled in the infusion bag as necessary.

  Such a chemical | medical agent is mix | blended as follows using the syringe equipped with the injection needle (liquid guide).

  First, the injection needle is pierced through the elastic stopper of the infusion bag, the plunger is pulled to collect the infusion solution in the infusion bag into the syringe, and then into a container containing a medicine (powder) that contains the collected infusion solution. After the drug is dissolved and mixed in this container, the drug mixture is again aspirated and collected with the syringe, the needle is inserted through the elastic stopper of the infusion bag, and the plunger is pressed to place the drug mixture in the infusion bag. Inject. When this operation is performed in an operating room or the like in an emergency, the surgeon may pierce his / her hand.

  Further, during this operation, the injection needle may be unintentionally detached from the syringe due to frictional resistance between the elastic stopper and the injection needle. In order to prevent this, as a syringe, a syringe provided with a connecting portion having a luer lock at the tip, which can be attached by fixing an injection needle by screwing (hereinafter referred to as “syringe with lock”). Is used (for example, refer to Patent Document 1).

  By the way, an unused injection needle is covered with a cap (case) for the purpose of preventing contamination.

  And when attaching the injection needle to the syringe with a lock, first, the injection needle with the cap placed is positioned at the tip of the syringe, and by gripping the cap and rotating it with respect to the syringe, Screw the injection needle.

  In addition, the connection part of the injection needle often protrudes from the cap, and therefore, there is a possibility that the connection part is accidentally touched and unclean (see, for example, Patent Document 2).

Japanese Patent Publication No. 1-16509 Japanese Utility Model Publication No. 49-23037

  The object of the present invention is, for example, to make it possible to easily and reliably perform the operation of attaching a liquid introduction device to a syringe provided with a connection portion having a luer lock at the distal end portion. An object of the present invention is to provide a liquid guide container that can be prevented from being touched.

Such an object is achieved by the present inventions (1) to (11) below.
(1) A liquid guiding device that is used by being attached to the tip of a syringe provided with a connection portion having a luer lock at the tip, and mainly composed of a resin material;
A liquid guiding device storage body that can store almost all of the liquid guiding device inside, and has a case having an opening into which a distal end portion of the syringe can be inserted at a base end thereof,
The liquid guiding device has a needle body including a needle tip with a tip closed and at least one side hole formed at the tip, and in a state of being housed in the case, A liquid guiding device storage body, which is supported so as not to move in the distal direction and not to rotate with respect to the case.

  (2) The liquid guiding device storage body according to (1), wherein the liquid guiding device is housed in the case, and a tip thereof does not contact an inner surface of the tip of the case.

(3) The liquid introduction tool has a protrusion formed to protrude on the outer surface, and is supported by the case at the protrusion.
The protrusion that is formed on one of the outer surface of the projecting portion and the inner surface of the case and the recess formed on the other are engaged with each other, thereby preventing rotation of the liquid guide with respect to the case ( 1) or a liquid-conducting device storage body according to (2).

  (4) The liquid guiding device storage body according to (3), wherein a plurality of the protruding portions are installed at equal intervals along the circumferential direction of the liquid guiding device.

  (5) The liquid guiding device storage body according to any one of (1) to (4), wherein the needle body is 16 to 20 gauge.

  (6) The liquid introduction device according to any one of (1) to (5), wherein an inner diameter of the liquid introduction tool gradually increases toward a proximal end of the liquid introduction tool, and a mounting portion on which a distal end portion of the syringe can be mounted. Liquid guiding device storage body.

  (7) The liquid guide container according to any one of (1) to (6), wherein the liquid guide is manufactured by an injection molding method.

  (8) The liquid introduction according to any one of (1) to (7), wherein the case functions as an operation member that performs the operation when the liquid introduction tool is attached to a distal end portion of the syringe. Ingredient storage body.

(9) The liquid guiding device storage body according to any one of (1) to (8), wherein the case is hermetically sealed with a sealing member in a state where the liquid guiding device is stored. .
(10) The liquid guide container according to (9), wherein the sealing member is a film.

  (11) The liquid introduction container according to any one of (1) to (10), wherein the opening has a diameter of 8 mm or more.

  According to the present invention, for example, it is possible to easily and surely perform an operation of attaching a liquid introduction device to a syringe provided with a connection portion having a luer lock at the distal end portion. Touching can be prevented.

  Moreover, since it can be set as simple packaging by providing a sealing member, it contributes to reduction of a waste material.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a liquid guiding device storage body of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

  First, before describing the liquid guiding device storage body of the present invention, the syringe 90 that is used with the liquid guiding device provided in the liquid guiding device storage body will be described.

  FIG. 4 is a partial cross-sectional view showing the configuration of the syringe. In the following description, the upper side in FIG. 4 is referred to as “base end” and the lower side is referred to as “tip”.

  A syringe 90 shown in FIG. 4 is connected to an outer cylinder (syringe outer cylinder) 91, a gasket 92 that can slide liquid-tightly in the outer cylinder 91, and a gasket 92, and the gasket 92 is moved in the outer cylinder 91. And a plunger (presser) 93. Hereinafter, each component will be described.

  The outer cylinder 91 is composed of a bottomed cylindrical member. In addition, at the bottom of the outer cylinder 91, an inner tube 911 having a diameter smaller than that of the body portion of the outer cylinder 91 at the center, and a cylindrical outer tube (connecting portion) 912 provided concentrically with the inner tube 911. Are integrally formed (provided) with the outer cylinder 91. In addition, the inner peripheral surface of the outer tube 912 has a thread (luer lock) 913 formed in a spiral shape.

  A plate-like flange 914 is integrally formed on the outer periphery of the base end of the outer cylinder 91. When the plunger 93 is moved relative to the outer cylinder 91, the operation can be performed by placing a finger on the flange 914.

  A space 915 is formed in a portion surrounded by the outer cylinder 91 and a gasket 92 described later.

  A gasket 92 made of an elastic material is accommodated in the outer cylinder 91. On the outer periphery of the gasket 92, a pair of ring-shaped protrusions 921 are formed at predetermined intervals in the axial direction. By sliding the projecting portion 921 in close contact with the inner peripheral surface 916 of the outer cylinder 91, the liquid tightness can be more reliably maintained and the slidability can be improved.

  A plunger 93 that moves the gasket 92 in the longitudinal direction within the outer cylinder 91 is connected to the gasket 92.

  The plunger 93 is mainly composed of a plate having a cross-shaped cross section, and a disc-shaped flange 931 is integrally formed at the base end thereof. The plunger 93 is operated by putting a finger or the like on the flange 931.

  When the plunger 93 is moved toward the proximal direction in a state where the liquid guiding device 10 to be described later is mounted (when pulled), the gasket 92 moves in the proximal direction, and the volume of the space 915 increases. Thereby, for example, containers such as ampoules, vials, infusion bags (hereinafter, referred to as “liquids”) containing liquids (hereinafter simply referred to as “liquid”) such as drug solutions and infusion solutions in the space 915 via the liquid introduction device 10. (It is simply referred to as a “container.”) Liquid can be aspirated (collected) from within. Further, from this state, when the plunger 93 is moved (pushed) in the distal direction, the gasket 92 is moved in the distal direction, the volume of the space 915 is reduced, and the liquid in the space 915 is transferred to the liquid introduction device 10. Can be discharged through.

Hereinafter, the liquid guiding device storage body of the present invention will be described in detail.
1 and 3 are partial cross-sectional views of the liquid guiding device storage body of the present invention, respectively, and FIG. 2 is a cross-sectional view taken along the line AA in FIG. In the following description, the upper side in FIGS. 1 and 3 is referred to as a “base end” and the lower side is referred to as a “tip”.

  1 includes a liquid guide 10 mainly composed of a resin material, a case 20 for storing the liquid guide 10, and a film (sealing member) 30. Hereinafter, each component will be described.

  The liquid guide 10 is used by being mounted on the syringe 90 as described above, and is configured by a substantially cylindrical member, and a flow path 11 through which liquid can pass is formed. . The flow path 11 communicates with the inside (space 915) of the syringe in a state where the liquid introduction tool 10 is attached to the syringe 90.

  The liquid guiding device 10 is not used for puncturing the human body, but used for piercing the plug (elastic plug) provided in the container when preparing a drug (medical solution). It has a needle body 120 having a needle tip 12 at its tip. The tip of the needle tip 12 is closed and has a substantially conical shape or a shell shape.

  Further, a pair of side holes 121a and 121b are formed in the side portion of the needle tip 12, and the flow path 11 is opened in these side holes 121a and 121b. The side holes 121a (the front side of the paper surface in FIG. 1) and 121b (the back side of the paper surface in FIG. 1) are each formed in a substantially rectangular or oval shape, and the central axis (axis) of the needle tip 12 (the liquid introduction tool 10) is formed. Are installed so as to face each other (substantially opposite to each other).

  In this way, the tip of the needle tip 12 is closed, and the needle tip 12 is provided with a pair of side holes 121a and 121b, so that the coring when the stopper (elastic plug) provided in the container is pierced is provided. In addition, when the liquid is sucked from the container into the syringe 90 with the needle tip 12 directed vertically upward, the amount of remaining liquid in the container can be reduced more reliably.

  Further, by making the needle tip 12 substantially conical or bullet-shaped, it is possible to prevent an operator or the like from accidentally puncturing the fingertip or the like, and high safety can be obtained. Moreover, the effect of preventing coring is also obtained.

  The opening area of the side hole 121a is set larger than the opening area of the side hole 121b. Thereby, operation which attracts | sucks a liquid in the syringe 90 can be performed more rapidly.

  Further, a pair of grooves 122a and 122b are formed on the side surface of the needle tip 12 along the longitudinal direction from the tip thereof, and these grooves 122a and 122b communicate with the side holes 121a and 121b, respectively. By providing these grooves 122a and 122b, the liquid can be guided to the side holes 121a and 121b more quickly and reliably.

  The needle body 120 is preferably 16 to 20 gauge, more preferably about 18 gauge. Thereby, since the suction operation and discharge operation of the liquid into the syringe 90 can be performed smoothly, the preparation operation of the chemical solution and the like become easier.

  The liquid introduction tool 10 has a mounting portion 13 whose inner diameter gradually increases toward the base end at the base end thereof. In addition, a ring-shaped flange 131 is formed on the outer periphery of the base end of the mounting portion 13 (liquid guide 10).

  The inner tube 911 of the syringe 90 is fitted inside the mounting portion 13, and the flange 131 is screwed into the thread 913 of the outer tube 912, whereby the liquid guide 10 is mounted (fixed) on the syringe 90.

  Moreover, you may form the inner layer which consists of elastic materials, such as various rubber | gum and a thermoplastic elastomer, or an adhesive, on the inner surface of the mounting part 13, for example. Thereby, when the liquid guiding device 10 is mounted on the syringe 90, the friction resistance between the inner surface of the mounting portion 13 and the inner tube 911 increases, so that the liquid guiding device 10 can be reliably fixed by the syringe 90.

  Further, as shown in FIG. 1, a pair of projecting portions 14 are formed so as to project integrally with the liquid guiding device 10 at a predetermined position in the longitudinal direction of the liquid guiding device 10. The protrusions 14 are disposed opposite to each other via the central axis (axis line) of the liquid guiding device 10, that is, at approximately 180 ° intervals (equal intervals) along the circumferential direction of the liquid guiding device 10.

  Each of these projecting portions 14 stands substantially vertically from the outer peripheral surface of the liquid guiding device 10 and has a shape bent toward the proximal direction in the middle. Moreover, the outer surface of each protrusion part 14 comprises the taper surface (inclined surface) corresponding to the internal peripheral surface of the taper part 22 of case 20 mentioned later.

  When detaching (removing) the liquid guiding device 10 from the syringe 90, this operation can be performed more easily and reliably by gripping and operating each protrusion 14.

  Each projecting portion 14 is installed at a position that makes approximately 90 ° with the side holes 121a and 121b. Thereby, for example, even when the needle tip 12 is located in the container and the side holes 121a and 121b cannot be visually recognized from the outside, the positions of the protrusions 14 in the container are easy. Can be recognized. That is, each protrusion 14 also has a function as a marker for confirming the side holes 121a and 121b. From such a viewpoint, each protrusion 14 may be provided at a position corresponding to each of the side holes 121a and 121b.

  Although it does not specifically limit as a manufacturing method of the liquid introduction tool 10, For example, an injection molding method, an extrusion molding method, a compression molding method, a blow molding method etc. are mentioned, Among these, it is preferable to use an injection molding method. According to the injection molding method, the liquid guide 10 having a more complicated shape can be easily and reliably manufactured with high dimensional accuracy. The injection molding method is also suitable for mass production of the liquid guiding device 10.

  When focusing on the injection molding method, the constituent material of the liquid guiding device 10 is not particularly limited, but for example, various resins such as polyethylene, polypropylene, and polycarbonate are preferably used. In addition, it is preferable that these resins are substantially transparent in order to ensure internal visibility.

  You may make it add additives, such as a filler and a pigment, to this constituent material as needed. For example, when a pigment or the like is added to color the liquid guide 10, the user can use the liquid guide 10 properly according to the purpose.

  Moreover, the liquid introduction tool 10 which uses a resin material as a main material is excellent in that it can be discarded more easily, and the labor required for the disposal process can be reduced.

  Although it does not specifically limit as a full length of the liquid introduction tool 10, Usually, it is preferable that it is about 10-100 mm, and it is more preferable that it is about 30-80 mm.

  Such a liquid introducing device 10 is accommodated in the case 20. The case 20 is formed of a substantially cylindrical member having an opening (open end) 21 at the base end.

  The inner diameter (diameter) of the opening 21 is set to be larger than the maximum outer diameter of the outer tube 912 of the syringe 90 so that the outer tube 912 (the tip portion of the syringe 90) can be inserted.

  In this case, for example, the inner diameter (diameter) of the opening 21 is preferably about 8 mm or more, and more preferably about 10 to 20 mm.

  The case 20 has a tapered portion 22 in which the inner diameter and the outer diameter gradually decrease from the middle of the longitudinal direction (axial direction) toward the tip, and constitutes a closed end at the tip.

  Around the opening 21 of the case 20, a ring-shaped flange 23 is integrally formed with the case 20.

  Such a case 20 is preferably substantially transparent (colorless and transparent), colored and transparent, or translucent to ensure internal visibility.

  The constituent material of the case 20 is not particularly limited, and examples thereof include various resins such as polyethylene and polypropylene.

  Now, in the liquid guiding device storage body 1 of the present invention, as shown in FIG. 1, the liquid guiding device 10 is stored in the case 20 (hereinafter, this state is referred to as “storage state”). The case 20 is supported so as not to move in the distal direction and not to rotate. Hereinafter, this point (feature) will be described in detail.

  As described above, the outer surface of each protruding portion 14 of the liquid guiding device 10 is formed corresponding to the inner peripheral surface of the tapered portion 22 of the case 20. For this reason, in this storage state, each protrusion 14 fits in the vicinity of the proximal end of the tapered portion 22 of the case 20. Thereby, the liquid introduction tool 10 is supported so that it does not move in the distal direction with respect to the case 20 at each protrusion 14.

  Further, the liquid guiding device container is configured such that the liquid guiding device 10 is supported with respect to the case 20 by a plurality of protrusions provided at equal intervals along the circumferential direction of the liquid guiding device 10. 1, the friction resistance is more improved in the operation of taking out the liquid guiding device 10 from the case 20 than in the case where the entire structure in the circumferential direction of the liquid guiding device 10 is supported by the case 20. Since it can be made small, this operation can be performed more easily and reliably.

  Further, in this stored state, the liquid guiding device 10 is configured such that the tip of the needle tip 12 does not contact the inner surface of the tip of the case 20. Thereby, as for the liquid introduction tool 10, the deformation | transformation of the needle point 12 is prevented reliably.

  A plurality of recesses 141 are formed on the outer surface of each protrusion 14 so as to be recessed. On the other hand, a plurality of convex portions 221 are formed so as to protrude from the inner peripheral surface near the proximal end of the tapered portion 22 of the case 20.

  In the housed state, the concave portion 141 and the convex portion 221 engage with each other to prevent (prevent) rotation of the liquid guiding device 10 with respect to the case 20, so that the liquid guiding device 10 does not rotate with respect to the case 20. Supported.

  That is, the concave portion 141 and the convex portion 221 constitute a rotation preventing means for preventing (preventing) rotation of the liquid guiding device 10 with respect to the case 20.

  By providing such rotation preventing means, the liquid guiding device storage body 1 has the following operations and effects, for example.

  First, the inner tube 911 of the syringe 90 is inserted into the inside of the mounting portion 13 of the liquid guiding device 10 in the stored state (see FIG. 3).

  Next, the case 20 is gripped and rotated relative to the syringe 90. At this time, since the rotation of the liquid guiding device 10 with respect to the case 20 is prevented, the liquid guiding device 10 rotates following the operation of rotating the case 20.

  As a result, the inner tube 911 is fitted inside the mounting portion 13, the flange 131 is screwed into the thread (luer lock) 913 of the outer tube (connecting portion) 912, and the liquid introduction device 10 is at the distal end portion of the syringe 90. (Fixed).

  Therefore, the case 20 also has a function as an operation member that performs an operation of mounting the liquid introduction tool 10 on the syringe 90.

  Further, the number of the convex portions 221 is not particularly limited, but is preferably about 4 to 100, and more preferably about 30 to 70, for example. On the other hand, the number of the recessed portions 141 is appropriately set corresponding to the protruding portions 221.

  The rotation blocking means includes a plurality of recesses formed on the inner peripheral surface near the base end of the taper portion 22 of the case 20 and a plurality of protrusions formed on the outer surface of each protrusion 14 of the liquid guide 10. It can also be comprised with the convex part.

  Further, in such a storage state, a film (sealing member) 30 that seals the opening 21 in an airtight manner is preferably attached to the base end surface of the flange 23 of the case 20. Thereby, the contamination in the case 20 is prevented and sterility is maintained.

  In addition, when using the liquid introduction tool 10, this film 30 is peeled off. At this time, tabs 31 are formed on the edges of the film 30 so that the film 30 can be easily peeled off.

  Examples of the film 30 include a single layer made of a resin such as polyethylene, polypropylene, ionomer, polyethylene terephthalate, polystyrene, poly- (4-methylpentene-1), polyamide, or a metal foil such as an aluminum foil. Or the laminated body which laminated | stacked (laminated) two or more layers of these can be used. In addition, since the laminated body of metal foil and a resin layer has low gas permeability, if such a thing is used as the film 30, the airtightness in the case 20 will improve and it will prevent the penetration | invasion of bacteria etc. effectively. be able to.

  In the liquid guiding device storage body 1 having such a configuration, the packaging material for storing the whole can be omitted, which contributes to the reduction of waste.

  In addition, it is preferable that at least the inside of the liquid guiding device storage body 1 is subjected to a sterilization process such as high-pressure steam sterilization, gas sterilization, or radiation sterilization in advance.

  As mentioned above, although the embodiment shown in figure of the liquid introduction instrument storage body of this invention was demonstrated, this invention is not limited to this, Each part which comprises a liquid introduction instrument accommodation body exhibits the same function. It can be replaced with any configuration obtained.

  For example, the sealing member may be a lid that is attached to the outer periphery of the base end portion of the case by fitting instead of the film. Moreover, in this invention, a sealing member can also be abbreviate | omitted as needed.

  Further, for example, the protrusions are not limited to those installed in a pair, and a plurality (three or more) may be installed at equal intervals along the circumferential direction of the liquid guiding device.

It is a fragmentary sectional view of the liquid introduction instrument storage body of the present invention. It is the sectional view on the AA line in FIG. It is a fragmentary sectional view of the liquid introduction instrument storage body of the present invention. It is a fragmentary sectional view which shows the structure of a syringe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid introduction tool body 10 Liquid introduction tool 11 Flow path 12 Needle tip 120 Needle body 121a, 121b Side hole 122a, 122b Groove 13 Mounting part 131 Flange 14 Protrusion part 141 Recess 20 Case 21 Opening 22 Taper part 23 Flange 221 Protrusion part 30 Film 31 Tab 90 Syringe 91 Outer cylinder 911 Inner tube 912 Outer tube 913 Thread 914 Flange 915 Space 916 Inner peripheral surface 92 Gasket 921 Protrusion 93 Plunger 931 Flange

Claims (5)

A liquid guide that is used by being attached to the tip of a syringe provided with a connection portion having a luer lock at the tip, and is mainly composed of a resin material;
A liquid guiding device storage body that can store almost all of the liquid guiding device inside, and has a case having an opening into which a distal end portion of the syringe can be inserted at a base end thereof,
The liquid guiding device has a needle body including a needle tip with a tip closed and at least one side hole formed at the tip, and in a state of being housed in the case, A liquid guiding device storage body, which is supported so as not to move in the distal direction and not to rotate with respect to the case. The liquid guiding device has a protrusion formed to protrude on the outer surface, and is supported by the case at the protrusion.
The convex part formed in one of the outer surface of the said protrusion part and the inner surface of the said case, and the recessed part formed in the other engage, The rotation with respect to the said case of the said liquid introduction tool is prevented. 2. The liquid guiding device storage body according to 1.   3. The liquid guiding device storage body according to claim 2, wherein a plurality of the protruding portions are installed at equal intervals along a circumferential direction of the liquid guiding device.   The liquid guiding device storage body according to claim 1, wherein the needle body is 16 to 20 gauge.   5. The liquid guiding device storage body according to claim 1, wherein the case is hermetically sealed with a sealing member in a state where the liquid guiding device is stored.

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