JP2531197Y2 - Medical device plug and medical device - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is a medical device such as a medicinal solution container used for transfusion and blood transfusion, and a co-injection part which constitutes a part of an extracorporeal circulation circuit and is used for blood collection and replacement fluid. The present invention relates to a plug to be attached to a medical device and an improvement of a medical device to which the plug is attached. In particular, the plug is constituted by a plurality of members, and a needle is punctured by forming a slit by attaching these members to each other. It is intended to provide a plug and a medical device which are easily made.

[Prior Art and Problems of the Related Art] A plug of a medical device currently used is made of natural rubber or synthetic rubber and used as a packing.

The stopper is punctured with, for example, a needle for deriving a drug solution from a transfusion or blood transfusion set to inject the drug solution into the patient. These needles have recently come to be made of only plastic, but depending on the sharpness and diameter of the tip shape of the needle, the plug may be depressed, the drug may leak, When the needle cover is removed from the needle or when the needle cover is put on after use, an accident such as an accidental puncture of the operator's finger may occur.

As countermeasures, the stopper was impregnated with lubricant, the tip of the needle was coated with a lubricant, the diameter of the needle cover was increased, and the metal needle was switched to plastic. However, the accident could not be prevented yet (the same problem occurred in the case of the plug in the co-injection section).

Therefore, there has been proposed a plug having a slit formed by penetrating a sharp blade or the like from the top surface to the bottom surface of the integrally formed plug.

However, it is difficult to confirm only by the appearance whether or not a slit is formed so that the needle can be punctured, and an inspection such as once puncturing the needle and confirming after forming the slit is required. In addition, if the method of forming the slit is poor, the needle cannot be punctured, or blocking occurs during high-pressure steam sterilization, making it difficult for the needle to be punctured, making the puncture operation difficult.

As described above, it was difficult to form a slit enough to puncture the needle.

The present inventors have made intensive studies to solve the above problems, and as a result, have arrived at the following invention.

[Means for Solving the Problems] FIG. 1 is a plan view of the plug 10, FIG. 2 is a bottom view of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG.

The plug 10 has a body portion 12 and a flange portion 13 formed on the upper portion of the body portion 12.
And a side portion 11 having a hole 15 in the top and bottom surfaces, and a plate-shaped central portion 14.

The plug 10 has the two side portions 11 on both sides of the central portion 14.
Are mounted so that the holes 15 face each other, and the central portion 14 excluding the holes 15
It is assembled by forming a slit S in the contact surface of the wall surface of the and the side portion 11.

Contact surface (slit S) between the wall of the central part 14 and the side part 11
Is closed by the packing action when the needle is not inserted.

In a state where the other policy is punctured, the contact surface (slit S) of the wall surface is in close contact with the outer periphery of the needle. Therefore, the medical solution in the medical device does not leak.

Further, when the needle is punctured, the needle can pass through the plug 10 smoothly without passing through the hole 15 along the contact surface (slit S) of the wall surface without receiving the puncture resistance. Easy.

FIG. 4 is a schematic view of the plug 30. The plug 30 has a body 32, a flange 33 formed on an upper portion of the body 32, and a side 31 having a hole 35 formed in a top surface. And a plate-shaped central portion 34. The two side portions 31 are mounted on both sides of the central portion 34.

The method of assembling and using the plug 30 is substantially the same as that of the plug 10 described above, and thus will not be described.

FIG. 5 is a schematic view of the plug 40. The plug 40 is composed of a body 42 and a body.
A flange 43 formed on the upper portion of the body 42, and two side portions 41 having a hole 45 formed in the top surface of the body portion 42 at the same position as the top surface of the flange portion 43. It is assembled by mounting the two side portions 41 with the holes 45 facing each other and forming a slit S on the contact surface of the body portion except for the holes 45. The method of using the plug 40 is substantially the same as that of the plugs 10 and 30 described above, and thus will be omitted.

FIG. 6 is a schematic view of the medical device 118, and FIG. 7 is an enlarged cross-sectional view of the mouth 120 constituting the medical device 118.

Any of the stoppers 10, 30, and 40 can be attached to the mouth 120.

When the plug 10 is attached to the mouth 120, the plug 10 is assembled by attaching the side portions 11 to both sides of the central portion 14 as described above, and then the flange 13 of the plug 10 is attached to the mouth main body 121. The flange 12 is pressed into the mouth main body 121, and the lower end of the rubber stopper 123 is abutted against the flange 13 and crimped by high frequency welding, ultrasonic welding or the like. It is assembled by things.

A liquid contact member 124 is mounted in the mouth main body 121 so that the stopper 10 and the chemical liquid 125 do not come into direct contact with each other.

In use, the needle passes through the hole 15 of the plug 10 and the slit S, penetrates the liquid contact member 124, and the drug solution 125 is drawn out from the needle and infused.

Further, the plug body 10 can be press-fitted and fitted into the mouth body 121 and the contact surfaces (slits S) of the respective wall surfaces can be brought into close contact with each other without mounting the side part 11 and the central part 14 in advance. (The same applies when plugs 30 and 40 are installed).

FIG. 8 is a schematic view of the medical device 130, and FIG. 9 is a longitudinal sectional view of FIG.

In the medical device 130, the plug 10 (30, 40) is attached to an upper opening 138 of a body 133 having a liquid flow path 136, and a protective cap 131 is further covered on the plug 10 (30, 40). Have been. Liquid transfer tubes 135, 135 are provided at both ends of the body 133.
Is attached, and a wing 137 is formed on a side portion to prevent erroneous sticking.

When using, insert the needle into the hole 15 (35, 35) of the stopper 10 (30, 40).
45) Then, the blood is led out from the needle or a drug solution is injected through the slit S.

[Operation and effect of the invention] The plug is composed of two or more members, and these members are attached to each other, and a slit is formed by the contact surface thereof. Needless to say, it can be easily confirmed, and the needle can be reliably punctured. Thereby, the puncture resistance when the needle is punctured into the slit is small, and the needle can be easily punctured along the contact surface of each member. In addition, a needle with a sharp tip can be used, and the safety of the worker can be maintained. In a state where the needle is not inserted, the closed state can be maintained by the packing action of the contact surface of each member. Therefore, leakage of the chemical solution can be completely prevented. With the needle punctured,
The contact surface of each member can be kept in close contact with the outer periphery of the needle, and leakage of the drug solution can be completely prevented.

[Brief description of the drawings]

FIG. 1 is a plan view of the plug of the present invention, FIG. 2 is a bottom view of FIG. 1, FIG. 3 is a cross-sectional view taken along line BB of FIG. 1, and FIGS. FIG. 6 is a schematic view of the medical device, FIG. 7 is an enlarged sectional view of the mouth, FIG. 8 is a schematic view of the medical device, and FIG. 9 is a longitudinal sectional view of FIG. In the figure, 10, 30, 40 are plugs, 12, 32, 42 are torso, 13, 33,
43 is a collar, 11, 31 is a side, 14, 34 is a center, 15, 35, 45
Indicates a hole.

Claims (4)

(57) [Scope of request for utility model registration] 1. A body having a body portion and a flange formed on an upper portion of the body portion and having a hole formed in a top surface and / or a bottom surface. Side part 11 (31) and plate-shaped central part 14
(34), and the side portions 11 (31) are provided with holes 15 on both sides of the central portion 14 (34).
(35) is attached so as to face, and a slit is formed in the contact surface between the central portion 14 (34) and the side portion 11 (31) except for the hole 15 (35), and the plug for a medical device is characterized by the following. 10 (30). 2. A body portion and a flange portion formed on an upper portion of the body portion.
And two sides 41 each having a hole 45 formed in the top surface of the body portion 42 at the same position as the top surface of the flange portion 43 with the holes 45 facing each other, and excluding the hole 45. A plug 40 for a medical device, wherein a slit is formed in a contact surface of the portion 42. 3. The plugs 10 and 3 according to claims 1 and 2 attached to the mouth body 121 having a flange 122.
Medical device 1 characterized by wearing any of 0, 40
18. 4. The plug according to claim 1 or 2, wherein one of the plugs 10, 30, and 40 is attached to an upper opening 138 of a body 133 having a liquid flow path 136. Further, the medical device 130 is characterized in that the plug 1 is covered with a protective cap 131.