JPH1033635A - Medical needle and medicine dissolution kit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a medical needle, by which a needle pipe can be liquid- tightly sealed by a needle cap, manufacturing management can be facilitated, variation in quality can be decreased, and sure piercing in a cap of a vial bottle or the like is enabled in the case of disposing the needle in a medicine dissolution kit to be used. SOLUTION: A medical needle 1 comprises a needle pipe 2 having a flange part 7 integrally formed on the needle base 8 and a needle cap 3 having a flange part 6 on the end part, wherein the needle cap 3 is installed on the needle pipe 2. The needle pipe 2 is formed by a hard material, the needle cap 3 is formed by a material capable of being pierced by the peak 2a of the needle pipe 2, and overlapping parts of the flange part 6 and the flange part 7 are welded or press-fitted to liquid-tightly seal the needle pipe 2 with the needle cap 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medical needle used by being attached to a blood transfusion or transfusion-related instrument and a drug dissolution kit having the medical needle arranged therein.

[0002]

2. Description of the Related Art Conventionally,
Medical needles used by connecting to containers filled with liquids such as chemicals have applied a sealant or the like to the joint surface between the needle cap and the needle base in order to maintain liquid tightness. In addition, liquid leakage failure may occur due to variations in the application conditions (temperature, drying conditions, air squeezing, etc.) of the sealing agent, which makes production management difficult. The conventional medical needle removes the needle cap and exposes the needle tube, and then punctures the plug or the like. Therefore, the operation is troublesome and the operator's hand may be damaged by the tip of the needle tube. In a conventional drug dissolution kit using a double-ended needle, the user has to puncture the stoppers of the vial and the drug solution container by sliding the double-ended needle. There is a danger of doubling, and furthermore, the design of the shape for sliding the double-ended needle is complicated, and the cost is increased.

[0003]

[Means for Solving the Problems]

[1] A medical needle 1 in which a needle cap 3 is mounted on a needle tube 2, comprising a needle tube 2 having a collar 7 integrally formed on a needle base 8 and a needle cap 3 having a flange 6 formed at an end. And the needle tube 2
Is made of a hard material, and the needle cap 3 is made of a material that can penetrate through the point 2a of the needle tube 2, and the needle tube 2 is needled by welding or pressing the overlapped portion of the flange 6 and the flange 7. A medical needle (1), which is hermetically sealed with a cap (3), is provided. [2] Medical needle 1 with needle cap 13 attached to needle tube 12
1, a needle tube 12 having a flange 17 integrally formed on a needle base 18 and a crimping piece 17a formed on the flange 17, and a needle cap 13 having a flange 16 formed at an end thereof. 1
2 is made of a hard material, the needle cap 13 is made of a material that can penetrate through the tip 12a of the needle tube 12, and the flange 16 superimposed on the flange 17 is crimped by bending the crimping piece 17a in the direction of the flange 16 By doing so, the medical needle 11 in which the needle tube 12 is liquid-tightly sealed with the needle cap 13 is provided. [3] The liquid medicine container 32 is composed of a liquid medicine container 32 and a vial holder 41. The liquid medicine container 32 has a communication port 33 formed at the upper part of the container body 32a and a liquid medicine discharge port 35 formed at the lower part.
A coupling member 34 is formed at an upper end of the communication port 33, and a stopper 39 is attached to a lower end of the discharge port 35. The vial holder 41 has a vial mounting port 46 and [1] to [1] Medical needle 1 (11) according to [2].
Projecting from the bottom of the holder body 42 and the chemical solution container 3
The drug dissolution kit 31 (3
1A) is provided.

[0004]

FIG. 1 is a schematic view of a medical needle 1 of the present invention. The medical needle 1 has a needle tube 2 integrally formed with a needle base 8 and a flange 7, and a flange 6 formed at an end. After the needle cap 3 is attached to the needle tube 2, the overlapped portions of the flanges 6 and 7 are welded or crimped by means of heat, ultrasonic waves, high frequency or the like. Can be
The constituent material of the needle cap 3 is, for example, rubber, elastomer, polyethylene, or the like, having flexibility in short.
Any material can be used as long as it can penetrate through the point 2a of the needle tube 2 and can be welded or crimped by the above-mentioned means with the constituent material of the needle tube 2.
The constituent material of the needle tube 2 is, for example, polycarbonate, polypropylene, acrylonitonyl-butadiene-styrene copolymer, hard PVC, or the like. Any material can be used as long as it can be welded or crimped by the above means. Further, the inside of the needle tube 2 may be divided into two liquid channels 5 by the partition walls 4, or may be a single liquid channel 5 without providing the partition walls 4.

FIG. 2 is a schematic view of the medical needle 11 of the present invention.
The medical needle 11 includes a needle tube 12 having a flange 17 integrally formed on a needle base 18, a crimping piece 17 a formed on the flange 17, and a needle cap 13 having a flange 16 formed at an end thereof. After the needle cap 13 is attached to the needle tube 12, the flange 16 superimposed on the flange 17 is attached to the flange 1 by ultrasonic waves or the like.
Assembled by bending and crimping in six directions. Constituent materials of needle tube 12 and needle cap 13 and needle tube 1
The internal shape of 2 is substantially the same as the medical needle 1 of FIG.

FIG. 3 is a schematic diagram of a drug dissolving kit 31 in which the medical needle 1 of the present invention is arranged. Drug dissolution kit 31
Is composed of a drug solution container 32 and a vial holder 41. The chemical liquid container 32 is made of polypropylene, and has a communication port 33 formed at an upper portion of a container body 32a by blow molding, and a chemical liquid discharge port 35 formed at a lower portion. At the upper end of the communication port 33, a flange 34 is formed as a connecting member, and at the lower end of the discharge port 35, a cap 37 enclosing a plug 39 is attached. The vial holder 41 has a cylindrical vial mounting port 46 on the inner surface of the bottom of the holder body 42.
And the medical needle 1 is mounted on the inside thereof. Further, a hanger 48 is provided on the upper side surface of the holder body 42. (The holder body 4
2 and the flange 34 of the chemical solution container 32 are joined by welding. )

After assembling the medical needle 1 as described above, the medical needle 1 is mounted on the bottom of the holder body 42 having a hole 49 and a groove 50 formed on the bottom as shown in FIG. Are arranged in the holder main body 42 by welding to the flange 34. FIG. 5 is a schematic view (FIG. 6 is an enlarged view of FIG. 5) of a drug dissolution kit 31A in which the medical needle 11 of the present invention is arranged. The medical needle 11 is the needle tube 1
2 is integrally protruded from the bottom of the holder main body 42, and after the needle cap 13 is mounted on the needle tube 12, it is mounted in the holder main body 42 by assembling as described above.

In using the medical needle 1 (11), the needle cap 3 (13) is penetrated by the point 2a (12a) of the needle tube 2 (12) without removing the needle cap 3 (13), and at the same time, a plug or the like is used. Puncture to transfer the drug solution. When using the drug dissolution kit 31 (31A), a vial (not shown) is pushed into the vial attachment port 46 in the holder main body 42, and the tip 2a of the needle tube 2 (12) is removed without removing the needle cap 3 (13). At 12a), the needle cap 3 (13) is pierced, and at the same time, the stopper is punctured. Then, with the chemical solution container 32 facing upward, a part of the chemical solution in the chemical solution container 32 is dropped and injected into the vial using pumping of the chemical solution container 32, and the drug in the vial is well dissolved and dissolved. After that, the solution in the vial is transferred to the drug solution container 32 by head and pumping with the vial facing upward, mixed with the remaining drug solution, and the dissolution of the drug is completed. To inject the lysis solution into the patient, the stopper 37 is punctured with a bottle needle (not shown) of an infusion set and injected.

[0009]

According to the present invention, the needle tube 2 (12) is attached to the needle cap 3 only by welding (press-bonding) the overlapped flange portions 6 (16) and 7 (17) of the needle tube 2 (12) and the needle cap 3 (13). Since it is possible to seal liquid-tightly in (13), it is possible to supply a uniform product which is easy to control in production and has little variation in quality. In use, the needle cap 3 (13) can be penetrated with the pointed end 2a (12a) of the needle tube 2 (12) without removing the needle cap 3 (13), and at the same time, the stopper can be punctured, so that the work is easy. . Needle tube 2 when used in the dissolution kit
Since (12) can be used as if it were fixed,
It is possible to puncture a stopper such as a vial more reliably than a conventional drug dissolving kit using a double-ended needle.

[Brief description of the drawings]

FIG. 1 is a schematic view of a medical needle of the present invention.

FIG. 2 is a schematic view of the medical needle of the present invention.

FIG. 3 is a schematic diagram of a drug dissolution kit using the medical needle of FIG. 1;

FIG. 4 is an enlarged view of FIG. 3;

FIG. 5 is a schematic diagram of a drug dissolution kit using the medical needle of FIG. 2;

FIG. 6 is an enlarged view of FIG. 5;

[Description of sign]

 1,11 Medical needle 2,12 Needle tube 2a, 12a Pointed end 3,13 Needle cap 4,14 Partition wall 5,15 Liquid passage 6,16 Flange 7,17 Flange 8,18 Needle base 17a Crimp piece 31,31A Drug Dissolution kit 32 Chemical solution container 32a Container main body 33 Communication port 34 Coupling member (flange) 35 Discharge port 37 Cap 39 Plug body (rubber plug) 41 Vial bottle holder 42 Holder main body 46 Vial mounting port 48 Hanger 49 Hole 50 Groove

Claims (3)

[Claims] 1. A medical needle 1 in which a needle cap 3 is attached to a needle tube 2, wherein the needle tube 2 is formed integrally with a needle base 8 and a flange 7.
The needle tube 2 is made of a hard material. The needle cap 3 is made of a material that can penetrate through the tip 2a of the needle tube 2. 6. The medical needle 1 wherein the needle tube 2 is liquid-tightly sealed with the needle cap 3 by welding or press-bonding the overlapping portion of the flange 6 and the overlapping portion 6. 2. A medical needle 11 having a needle cap 13 attached to a needle tube 12, wherein the needle tube 12 has a flange 17 integrally formed on a needle base 18 and a crimping piece 17a formed on the flange 17. The needle tube 12 is made of a hard material, and the needle cap 13 is made of a material penetrable at the point 12a of the needle tube 12, and is superposed on the flange portion 17. The flange 16 and the crimping piece 17a are
A medical needle 11, characterized in that the needle tube 12 is sealed in a liquid-tight manner with a needle cap 13 by bending and pressing in six directions. 3. A chemical container 32 and a vial holder 41.
The chemical liquid container 32 has a communication port 33 formed in an upper part of the container body 32a and a chemical liquid discharge port 35 formed in a lower part, and a coupling member 34 is formed in an upper end of the communication port 33, and Exit 35
A stopper 39 is attached to the lower end of the vial, and the vial holder 41 is provided with a vial attachment port 46 and a medical needle 1 (11) according to claim 1 or 2 protruding from the bottom inner surface of the holder body 42, A drug dissolving kit 31 wherein the bottom of the holder body 42 and the connecting member 34 of the drug solution container 32 are connected.
(31A).