JP2001017553A - Puncture member and syringe with puncture member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a puncture member and a syringe with a puncture member that allow the use of both medical instrument and pharmaceutical container in which a non-slit mixed injection member and a mouth and a slit mixed injection member and a mouth are used jointly in the same facility. SOLUTION: A puncture member 1 in which an injection portion 3 is provided projectingly below a base 2, a pressing portion 6 is formed in the upper portion of the injection portion 13, a projection 7 is formed in the periphery of the pressing portion 6, a needle base 9 is formed at the tip of the injection portion 3 through a breaking opening 15, and a metal needle 4 is mounted in the needle base 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an infusion set, for example,
A blood injection set, a blood transfusion set, a co-injection member placed in the middle of a medical device such as an extracorporeal circulation circuit, a mouth attached to a medicine container enclosing a drug (infusion solution, physiological saline solution, blood preservation solution, etc.) and a medicine container The present invention relates to an improvement in a puncture member that punctures a co-injection member arranged in the middle of a connected tube.

[0002]

When performing co-injection and blood collection of a drug solution, a sharp-tipped metal needle attached to a syringe, a co-injection member or a mouth portion without a slit arranged in each of the medical instruments and medical containers. Puncture is performed. Since a metal tip having a sharp tip is used, there is a danger of touching the tip of the needle during the operation. Therefore, a puncturing member having a non-sharp tip (hereinafter abbreviated as “puncturing member with an injection portion”) has been devised. As a co-injection member corresponding to this, there is a co-infusion member (hereinafter abbreviated as “slit co-injection member”) in which a slit is formed in the top surface of the plug body to reduce piercing resistance to facilitate piercing. Applicant is Japanese Patent Application Hei 10
No. 373886 proposes a "puncture member with an injection portion", but a conventional puncture member using a metal needle having a sharp tip is still mainstream. Therefore, a conventional co-injection member without a slit (a member in which an elastic body such as silicone rubber is attached to a plug protruding from the top surface of the main body and a cap whose central portion of the top surface is opened is fitted to the cylinder). Make up the majority. Therefore, in the facility, a standard medical instrument and a medical container with a conventional co-injection member and a standard medical instrument and a medical container with a co-injection member with a slit are used in combination, and a puncture member or a puncture member equipped with a sharp metal needle is used. Only one of the puncturing members having a non-sharp tip can be selected. The inventor of the present invention has made intensive studies in order to solve the above-mentioned problems, and as a result, has arrived at the next invention.

[0003]

Means for Solving the Problems [1] The present invention relates to a base 2
An injection part 3 (3a) protrudes below (2a), and a pressing part 6 (6a) is formed above the injection part 3 (3a).
A convex portion 7 (7a) is formed on the outer periphery of the pressing portion 6 (6a),
A needle base 9 (9a) is formed at the tip of the injection part 3 (3a) through a folding opening 15 (15a), and the puncture member 1 (9) having a metal needle 4 (4a) attached to the needle base 9 (9a). 1A) is provided. [2] The present invention provides a wing 5 on the outer periphery of the base 2 (2a).
5a (5b, 5c) and the wings 5, 5a (5b,
The puncture member 1 (1A) according to [1], wherein a flange 8 (8a) is formed at the upper end of 5c) and a groove 10 (10a) is provided on the side of the wings 5, 5b. [3] The present invention provides the puncture member 1 (1A) according to [2], in which a cap 13 having a protrusion 14 (14a) fitted with the groove 10 (10a) is mounted. [4] In the present invention, the base 2 (2a) of the puncture member 1 (1A) according to [1] to [3] is inserted into the insertion portion 12 or the puncture member 1 according to [1] to [3]. Provided is a syringe with a puncture member in which the base 2 (2a) of (1A) is integrally formed at the lower part of the syringe 11.

[0004]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an example in which a medicine is co-injected into a puncture member and a co-infusion member will be described. FIG. 1 is a schematic view in which a puncture member 1 of the present invention and a syringe 11 are connected. The puncture member 1 includes a base portion 2 fitted into an insertion portion 12 formed in a syringe 11, an injection portion 3 inserted into a co-injection member 2A described later, a needle base 9 on which a metal needle 4 is mounted, and an injection portion 3. And the cap 13 that covers the metal needle 4. The injection part 3 and the metal needle 4 are formed at the tip of the injection part 3 through a folding hole 15. A pair of wings 5 and wings 5a are provided on the outer periphery of the base 2 at 90-degree intervals. The wings 5 are formed longer than the wings 5a, so that the fingertips can be easily hooked. By rotating the wings 5 with the fingertips, the wings 5 can be easily attached to and detached from the syringe 11.
Since the wing portion 5 is formed longer than the wing portion 5a, the wing portion 5 moves in the longitudinal direction of the main body 20 when the puncturing member with the injection portion is inserted, fitted, rotated, and fixed to the co-injection member 2A described later. On the other hand, the vertical direction is shown, and the tightening state can be visually confirmed. At the lower ends of the wing portions 5, 5a, a plate-shaped pressing portion 6 is formed, and at least two convex portions 7 are formed on the outer periphery of the pressing portion 6. The wings 5, 5a
A collar portion 8 is formed at the upper end of the as required. As a result, a luer lock type syringe (not shown) can be fitted so that the syringe 11 and the puncture member 1 do not come off. A needle base 9 is formed at the tip of the injection part 3 through a folding opening 15, and the metal needle 4 is mounted on the needle base 9. The folding opening 15 is formed in a groove shape and is thin, and can be folded from any direction of 360 degrees when pressed.
Can be cut off. When the puncture member 1 with the metal needle 4 attached thereto is punctured into the co-injection member 2B as shown in FIG.
From the fold 15 as shown in FIG.
It has the appropriate strength to break when it is pressed and folded.
The cap 13 has a protrusion 14 formed on the inner surface of the large-diameter base portion so as to fit into the groove 10. By fitting the protrusion 14 into the groove 10, the injection part 3 and the metal needle 4 are covered. Can be attached to

Next, an example of a method of using the puncture member 1 will be described. Infusion set to be used, blood collection set, blood transfusion set, co-infusion member placed in the middle of medical equipment such as extracorporeal circulation circuit, mouth to be attached to a medicine container enclosing drugs (infusion, physiological saline solution, blood preservation solution, etc.) Part and the shape of the co-injection member arranged in the middle of the tube connected to the medicine container,
First, it is determined whether the conventional mouth portion and the co-injection member have no slit or the co-infusion member and the spout portion with the slit. In the case of a conventional mouth portion without a slit and a co-injection member, the puncture member 1 to which the metal needle 4 is attached is used as shown in FIG. In the case of a mixed injection member with a slit and a mouth, the needle base 9 on which the metal needle 4 is mounted as shown in FIG.
The puncture member 1 is further folded and separated, and is used as shown in FIG.

FIG. 2 shows a cap 13 attached to the puncture member 1.
FIG. 5 is a schematic view when the needle base 9 on which the metal needle 4 is mounted is folded from the folding opening 15 using the arrow. The cap 13 attached to the puncture member 1 is removed, and the cap 13 is pulled out until the folding opening 15 is exposed from the insertion opening 16. The distal end of the metal needle 4 is pressed against the inner wall of the small diameter portion of the cap 13 and the needle base 9 is simultaneously opened. Hits the inner circumference of the upper end of the insertion slot 16, and the pressing force is transmitted to the folding slot 15, and the metal needle 4
Is detached, and the metal needle 4 is stored in the cap 13 together with the needle base 9.

FIG. 3 is a schematic diagram in which the injection part 3 of the puncture member 1 after the metal needle 4 is cut off is punctured into the co-injection member 2A, and the pressing part 6 is pressed against the top surface of the stopper 23. FIG. 3 is a schematic diagram when the puncture member 1 is rotated 90 degrees. In the co-injection member 2A, a plug 23 having elasticity such as silicone rubber and having at least a slit formed on the top surface is attached to a tubular cylinder 21 protruding from the top surface of the tubular body 20. Is formed by fitting a cap concave portion 26 formed on the inner periphery of the cap 22 into a cylindrical projecting portion 25 formed on the outer periphery of the cap 22, and mounting the cap 22 on the cylindrical body 21. Cap 22
Is a cylindrical cap 22 having an opening at the center of the top surface. A concave portion 24 is formed in the upper inner peripheral surface of the cap 22 so as to fit with the convex portion 7 provided on the outer periphery of the pressing portion 6. The injection part 3 is inserted into a slit formed on the top surface of the plug 23 of the co-injection member 2A and pressed. At the same time, the convex portion 7 provided on the outer periphery of the pressing portion 6 and the concave portion 24 formed on the upper inner wall surface of the cap 22 are fitted together, and further, the top surface of the plug 23 is pressed, and the puncture member 1 is turned 90 degrees. Rotate. By pressing the puncture member 1, the pressing portion 6 and the convex portion 7 compress the plug 23, and by further rotating, the convex portion 7 becomes the cap 22.
The puncture member 1 and the co-injection member 2A are firmly fixed. This prevents the puncture member 1 from tilting or falling off during continuous drug injection, and prevents liquid leakage from the plug 23. It is sufficient that the puncture member 1 is rotated at an angle of 40 to 140 degrees, but the convex portion 7 provided on the outer periphery of the pressing portion 6 is fitted on the upper inner wall surface of the cap 22, and the cap 22 is rotated. It is good if it does not come off, and preferably 90 degrees.

FIG. 5 is a schematic diagram when the puncture member 1 on which the metal needle 4 is mounted is punctured into the conventional co-injection member 2B. In the co-injection member 2B, an elastic plug 33 such as silicone rubber is attached to a tubular cylinder 31 protruding from the top surface of the tubular main body 30, and a cylindrical projection 35 formed on the outer periphery of the cylinder 31 is formed. A cap concave portion 36 formed on the inner periphery of the cap 32 is fitted to the cap 32, and the cap 32 is mounted on the cylindrical body 31. The cap 13 attached to the puncture member 1 is removed and the metal needle 4 is inserted into the surface of the co-injection member 2B without a slit where the cap top surface is opened at the center of the cap and the plug 33 is exposed to perform co-infusion or blood collection.

FIG. 6 is a schematic view of a puncture member 1A showing another embodiment of the puncture member 1, in which the puncture member 1A and the syringe 11 are connected. On the outer periphery of the base 2a, wings 5b,
5c are provided as a pair at four positions at 90-degree intervals, and at the lower ends of the wings 5b and 5c,
A flat rhombus-shaped pressing portion 6a is formed, and a convex portion 7a is provided on the outer periphery of the pressing portion 6a.
A flange 8a is formed at the upper end of 5c. The puncture member 1A has a needle base 9a formed at the tip of the injection portion 3a through a folding opening 15a, and a metal needle 4a is attached to the needle base 9a, similarly to the puncture member 1. The folding opening 15a is formed in a thin groove shape and can be folded from any direction of 360 degrees when pressed, so that the injection portion 3a and the needle base 9a on which the metal needle 4a is mounted can be cut off. Although not shown, the puncture member 1A can also be mounted so as to cover the injection portion 3a and the metal needle 4a by fitting the protrusion 14 of the cap 13 of FIG. 1 into the groove 10a.

When used, a co-injection member, a mouth portion to be attached to a medicine container enclosing a medicine, and a plug in the co-infusion member disposed in the middle of a tube connected to the medicine container as in the case of the puncture member 1. The conventional mouth and co-injection member without slits or the co-infusion member with slit and the spout are discriminated. With the conventional mouth and co-infusion member, the puncture member 1A with the metal needle 4a attached as shown in FIG. A conventional co-infusion member 2B and a plug at the mouth are punctured to perform co-infusion or blood collection. In the case of a co-injection member with a slit, as shown in FIG. 2, a cap attached to the puncture member 1A is used to fold it at the folding opening 15a, the metal needle 4a is cut off, and the infusion unit 3a is inserted into the co-infusion member with a slit as in FIGS. (Not shown) is inserted and pressed, and the pressing portion 6a and the convex portion 7a compress the plug, and the convex portion 7a is rotated between the upper inner wall surface of the cap and the top surface of the plug. The puncture member 1A and the co-injection member with slit are firmly fixed, and co-infusion or blood collection is performed.

The puncturing member 1 (1A) is not limited to the one shown in the drawing, and the wings 5, 5a (5b, 5c) may have any shape as long as they can be easily attached to and detached from a syringe by being rotated with a fingertip. Shapes can also be employed. Especially wings 5, 5a
The number of (5b, 5c) is preferably formed from two to six.

In the present invention, the pressing portion 6 (6a) is a member for pressing the top surface of the plug 23 attached to the co-injection member 2A or the like, and the injection portion 3 (3a) is a member for pressing the plug 23. The injection portion 3 (3a) is a member that is inserted into the slit and protrudes into the flow path of the main body 20 such as the co-infusion member 2A. Therefore, in the present invention, the shapes of the pressing portion 6 (6a) and the injection portion 3 (3a) are not limited to those shown in the figure, and when the puncture member 1 (1A) from which the metal needle 4 has been removed is inserted into the co-injection member 2A or the like, The puncture member 1 (1) is inserted into the flow path of the main body 20 such as the co-injection member 2A.
A), the tip of the injection part 3 (3a) reaches and the pressing part 6 (6
Any shape may be used as long as a) can press the top surface of the plug 23 and can further rotate. More specifically, FIG. 2 and FIG.
The length of the injection portion 3 (3a) of the wing portion 5, 5a (5b, 5b)
c) It is formed to the same length as the length, but it is sufficient that the tip of the injection part 3 (3a) protrudes into the flow path of the main body 20 and the other part is buried in the slit as described above. Further, it is sufficient that the pressing portion 6 (6a) can press the top surface of the plug 23. Therefore, the length of the injection part 3 (3a) is
It may be longer or shorter than (5b, 5c). Further, the pressing portion 6 may not be formed integrally with the wing portions 5 and 5a, but may be formed alone on the outer periphery of the injection portion 3 like the pressing portion 6a. That is, the pressing portion 6 has the wing portion 5b like the pressing portion 6a,
5c may be formed at an interval from the pressing portion 6 (6
It is not necessary to form only a) and to provide the wings 5, 5a (5b, 5c). If the outer peripheral shape of the pressing portions 6 and 6a is made the same as the shape of the upper inner wall surface of the cap 22 fitted to the outer peripheral shape of the pressing portions 6 and 6a, the convex portion provided on the outer periphery of the pressing portions 6 and 6a 7, 7a becomes unnecessary. That is, when the shape of the inner wall surface of the cap and the shape of the pressing portion are the same and fitted together, the shape of the pressing portion is screwed between the inner wall surface of the cap and the top surface of the plug as shown in FIGS. The shape of the pressing portion is not particularly limited as long as the round puncture member and the slit co-infusion member can be firmly fixed. However, if the shape of the pressing part is a perfect circle,
Since the inner wall surface of the cap also forms a perfect circle, it cannot be fixed by rotating. Also, when the shape of the pressing portion is screwed between the inner wall surface of the cap and the top surface of the plug, the inner wall surface of the cap is made not to be broken.

The shape and the mounting method of the cap 13 mounted on the puncturing member 1 (1A) are not limited to the mounting by fitting the groove 10 and the cap projection 14 described above.
There is no particular limitation as long as the cap can be easily attached and detached in A).

For the sake of product specifications, for example, conventional medical devices such as a transfusion set, a blood collection set, a blood transfusion set, an extracorporeal circulation circuit and a medical container, and a conventional mixed injection member without a slit and a mouth portion and a mixed injection member with a slit and a mouth. Although it is unlikely that two or more parts are used together, a mixed injection member without a slit and a mouth and a mixed injection member with a slit and a mouth which are close to each other are sufficiently assumed. Therefore, puncturing member 1 (1A)
Is a puncture member 1 (1) to which a metal needle 4 (4a) is attached.
A) The metal needle 4 (4a) can be used as
It can be used as the puncture member 1 (1A) which is folded from (15a) and has only the injection section.

[0015] Injection and blood collection of a drug are originally performed by using a puncture member with an injection part in the co-infusion member and the mouth of the medical device and the medical container equipped with the co-infusion member with a slit. By puncturing the puncture member with the metal needle attached, it is possible to cope with an emergency.

The puncture member 1 (1A) may be provided separately without being enclosed in a packaging material together with a medical device and a medical container equipped with a co-injection member with a slit.

The puncture member 1 (1A) of the present invention comprises a base 2
(2a) is attached to the insertion portion 12 of the syringe 11 or the base 2
(2a) can be integrally molded with the lower part of the syringe 11 and used as one member, ie, a syringe with a puncture member (not shown).

[0018]

The effect of the present invention is that a conventional slit is used for a co-injection member disposed in the middle of a medical device such as an infusion set, a blood collection set, a blood transfusion set, an extracorporeal circulation circuit, and a medicine container enclosing a medicine. Even if a standard medical device and a medical container having a mixed injection member and a mouth and a mixed injection member with a slit and a mouth are used together in the same facility, the puncture member 1 (1A) of the present invention has a conventional slit. No co-infusion member and puncture member 1 (1
A) to be used as a co-injection member with a slit and, in the case of a mouth portion, a needle member 9 (9a) equipped with a metal needle 4 (4a) as a puncture member with an injection portion separated from a folding opening 15 (15a). Can be dealt with flexibly.

[Brief description of the drawings]

FIG. 1 is a schematic diagram in which a puncture member 1 and a syringe 11 of the present invention are connected.

FIG. 2 is a schematic view of the puncture member 1 folded from a folding opening 15 and separated from a needle base 9 on which a metal needle 4 is mounted.

FIG. 3 is a schematic diagram in which a puncture member 1 separated from a needle base 9 on which a metal needle 4 is mounted is punctured into a co-injection member 2A and a pressing portion is pressed against a stopper.

4 is a schematic diagram when the puncture member 1 of FIG. 3 is rotated by 90 degrees.

FIG. 5 is a schematic diagram when a puncture member 1 equipped with a metal needle 4 is punctured into a conventional slitless co-injection member 2B.

FIG. 6 shows a puncture member 1 showing another embodiment of the puncture member 1.
Schematic diagram connected to the syringe 11 at A

[Explanation of symbols]

 1, 1A Puncture member 2A, 2B Mixed injection member 2, 2a Base 3, 3a Injection part 4, 4a Metal needle 5, 5a, 5b, 5c Wing part 6, 6a Pressing part 7, 7a Convex part 8, 8a Flange part 9, 9a Needle base 10, 10a Groove 11 Syringe 12 Insertion section 13 Cap 14 Projection 15, 15a Folding opening 16 Insertion opening 20, 30 Main body 21, 31 Cylindrical body 22, 32 Cap 23, 33 Plug body 24 Concave part 25, 35 Cylindrical body Projections 26, 36 Cap recess

Claims (4)

[Claims] An injection section 3 (3a) is provided below a base 2 (2a).
And a pressing portion 6 is provided above the injection portion 3 (3a).
(6a) is formed, a convex portion 7 (7a) is formed on the outer periphery of the pressing portion 6 (6a), and the needle base 9 (7) is formed at the tip of the injection portion 3 (3a) through a folding hole 15 (15a). 9A) is formed, and a metal needle 4 (4a) is attached to the needle base 9 (9a). 2. Wings 5 and 5a are provided on the outer periphery of the base 2 (2a).
(5b, 5c) and the wings 5, 5a (5b, 5c).
c) a flange 8 (8a) is formed at the upper end of the wing 5,
The puncture member 1 (1A) according to claim 1, wherein a groove 10 (10a) is provided on a side portion of 5b. 3. A projection 14 fitted in the groove 10 (10a).
The puncture member 1 (1A) according to claim 2, wherein a cap 13 formed with (14a) is mounted. 4. The puncture member 1 (1A) according to claim 1, wherein the base 2 (2a) of the puncture member 1 (1A) according to claim 1 is inserted into the insertion portion 12. 3. The syringe with a puncture member, wherein the base 2 (2a) of (1) is formed integrally with the lower part of the syringe 11.