JPH055345Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field of the invention> The invention is a tube clamp integrally molded with plastic, which is used to clamp a tube and cut off or reduce the flow of liquid flowing inside the tube. Regarding.

<Prior art> For example, in medical treatment (blood transfusion, etc.), a tube clamp integrally formed of plastic with a structure as shown in FIG. 6 has been proposed in order to block or adjust the flow of liquid flowing inside the tube. (Tokuko Showa 62-1903).

That is, this tube clamp 1 has holes 2 in the first curved part 2 and the second curved part 3 as shown in FIG.
An elastic tube T is passed through the tubes a and 3a, and the tube T is temporarily held between the upper and lower protrusions 5 and 6 so as to be slightly bent from above and below. In order to reduce or block the flow of liquid in the tube T, the first arm 7 is pushed in and the engagement claw 7a at the tip of the first arm 7 is inserted into the engagement recess 8a of the second arm 8. , and tighten the tube T with the upper and lower protrusions 5 and 6.

However, in the conventional tube clamp having such a structure, the tube T is connected to the two holes 2a and 3.
It is troublesome because it has to be passed through holes 2a and 3a, and if an accessory such as a cap is attached to the end of the tube T, it is necessary to remove the cap etc. from the tube one by one in order to pass the tube T through holes 2a and 3a. First, this was a great inconvenience when a major emergency was required, such as a blood transfusion.

For this reason, tube clamps that could be attached to the tube from the side were conventionally
No. 22717, Jitko No. 48-31676, Jitko No. 47-18940
proposed in No.

<Problems to be solved by this invention> However, in Utility Model Publication No. 50-22717, the tube was simply sandwiched from the side, so there was a risk that it would easily come off the tube if an external force was applied in an emergency. .

In addition, in Utility Model Publication No. 48-31676, it is not only cumbersome to attach the hook to the tube from the side through the hole 6, but also because the tube is not temporarily secured after being passed through the tube. There was an inconvenience that it shifted in the direction along the tube. Also, in Utility Model No. 47-18940,
When the tube clamp is attached, the tube is in a tightened state, so there is an inconvenience that the tube clamp cannot be attached without stopping the flow of liquid in the tube.

The object of the present invention is to correct such inconveniences and provide a tube clamp that can be easily temporarily fixed to the tube from the lateral direction.

<Means for solving the above-mentioned problems> In order to achieve the above-mentioned object, the tube clamp of the present invention is integrally connected with a flexible hinge part 11 having elasticity, and is formed in a substantially V-shape, first and second arm portions 12 and 13 whose opening width between the distal ends is set to a width that allows the flexible tube to pass through; and distal end sides of the first and second arm portions 12 and 13. engaging portions 17 and 18 that are provided in and coupled to each other by pressing the distal ends of the first and second arm portions 12 and 13 in a direction toward each other against the elasticity of the hinge portion 11; The flexible tube is provided on the inner surface of at least one of the first and second arm parts 12 and 13, and when the engagement parts 17 and 18 are disengaged, the flexible tube is moved by the elasticity of the hinge part 11. The engaging portion 1 is temporarily held in the lateral direction with a slight bend.
a holding portion for holding the flexible tube in a state in which the flexible tube is bent with a larger deflection than in the temporarily fixed state in the engaged state of the tubes 7 and 18; and at least one of the first and second arm portions 12 and 13. a stopper provided on the inner surface of the holding part and protruding obliquely toward the holding part between the holding part and the distal end of the arm part, and having a length that allows the flexible tube to pass laterally; The flexible tube, which is passed laterally between the distal ends of the first and second arm parts 12 and 13 and further passed laterally through the distal end of the stopper, is held and temporarily held by the holding part. It is characterized by being designed to stop.

<Function> Because of this structure, in the tube clamp of the present invention, the tube is inserted laterally between the tips of the first and second arms, and then further into the back from the tips of the stoppers to reduce the elasticity of the hinge. 1st, 2nd depending on
The tube is attached by holding the tube from the side approximately in the width direction of the first and second arms using the holding portion on the inner surface of the arm. In this state, the stopper on the distal end side of the holding part prevents the tube from coming off, and the holding part temporarily fixes the tube without fear of lateral displacement.

By engaging the opening-side engaging portions of the first and second arm portions, the tube is strongly pinched by the holding portions. Therefore, the flow of liquid within the tube is blocked or reduced.

<Embodiment of the present invention> (Figs. 1 to 5) An embodiment of the present invention shown in Figs. 1 to 5 will be described below.

This tube clamp 10 is made of integrally molded plastic, and has first and second arm portions 12 and 13, which are substantially plate-shaped and have the same width, extending from both upper and lower ends of a hinge portion 11 having a substantially semicircular cylindrical shape. Gradually V
They are integrally connected so that they open in a letter shape.

The first and second arm portions 12 and 13 are provided with thin portions 12a and 13a in the width direction at intermediate portions in the longitudinal direction.

The hinge portion 11 has first and second arm portions 12 and 13.
The wall thickness is adjusted so that when force is applied to it, it deflects with a moderate elastic force, and when this force is released, it returns to its original shape.
The thickness is set smaller than that of the second arm portions 12 and 13.

The length of the first arm 12 is set to be slightly larger than the length of the second arm 13. Vertical pieces 14 and 15 are provided to protrude inward from the tips of the first and second arm parts 12 and 13, and an outer vertical piece 14 is provided.
An operating piece 16 is provided to protrude from the tip in the direction opposite to the hinge portion 11 .

Engagement pawls 17 and 18 that engage with each other are provided on the inner side of the tip of the outer vertical piece 14 and on the outer side of the tip of the inner vertical piece 15, respectively.

Therefore, when the tips of the first and second arm parts 12 and 13 are pressed with fingers against the elasticity of the hinge part 11, the engaging claws 17 and 18 are engaged with each other as shown in FIG. . Then, from the state shown in FIG.
If you press the area near a with your finger and push up the operation piece 16 in the direction of the arrow, the first
Since the distal end side of the arm portion 12 is slightly bent clockwise (in FIG. 5), the engaging claws 17 and 18 are disengaged, and the elasticity of the hinge portion 11 restores the state shown in FIG.

A tube T is provided on the inner surface of the first and second arm portions 12 and 13 between the hinge portion 11 and the thin wall portions 12a and 13a, respectively.
Arc-shaped recesses 19 and 20 are provided for holding the parts 2 and 13 in the width direction. arcuate recess 19,
At the center of 20, there are first and second arm parts 1, respectively.
In the longitudinal direction of 2 and 13, ribs 21 and 22 for pressing the tube are approximately triangular in cross section as shown in FIG.
is provided.

Further, on the inner surfaces of the first and second arm portions 12 and 13, vertical pieces 14 and 1 of the thin portions 12a and 13a are provided.
At the step portions 12a' and 13a' on the 5 side, the hinge portion 1
Thin plate-shaped stopper 2 tilted diagonally toward side 1
3 and 24 are provided protrudingly. In order to prevent the stoppers 23 and 24 from colliding with each other when they engage the engagement claws 17 and 18, one stopper 23 is placed in the width direction of the first arm 12 as shown in FIG. The stopper 24 projects from a position closer to one side, and the other stopper 24 projects from a position closer to the other side in the width direction of the second arm portion 13 .

Further, on the outer surfaces of the tips of the first and second arm parts 12 and 13, a plurality of protrusions 25 and 2 are provided in the width direction to prevent the fingertips from slipping when engaging the engaging claws 17 and 18.
6 is provided protrudingly.

<Operation of the above embodiment> Next, the operation of the above embodiment will be explained.

First, the tube T is deflected and passed between the vertical pieces 14 and 15 of the tube clamp 10 between the vertical pieces 14 and 15 of the tube clamp 10, and between the stoppers 23 and 24 in a direction perpendicular to the flexible tube T. ,2
The elasticity of the hinge portion 11 allows it to be held in a state where it is lightly sandwiched between the two. As a result, the tube T is slightly bent as shown in FIGS.
The first and second arm portions 12 and 13 are adapted to the shape of 0.
is held in the width direction. In this state, the rib 2 at the center of the arcuate recesses 19 and 20
1 and 22 press the held tube T, thereby preventing the tube clamp 10 from shifting in the longitudinal direction of the tube T. Further, since the tips of the two stoppers 23 and 24 are located outside the tube T, the tube T is prevented from coming off. Furthermore, the two stoppers 23 and 24 prevent the tube clamp 10 from tilting significantly with respect to the tube T. In this way, the tube clamp 10 is temporarily fixed to the tube T from the side as shown in FIGS.

Next, when the tips of the first and second arm parts 12 and 13 are pressed in the direction of approaching each other against the elasticity of the hinge part 11 with fingers, the engaging claws 17 and 17 of the vertical pieces 14 and 15 are pressed.
18 are in contact with each other, and the outer vertical piece 14 is in contact with the thin wall portion 12a.
Because the engaging claw 1 bends slightly outward against the elasticity of the
7 and 18 cross over each other, and as shown in FIG. 5, the engaging claws 17 and 18 strongly engage with each other. As a result, the tube T is pressed between the arcuate recesses 19 and 20, and the central ribs 21 and 22
Since the tube T is crushed by the tube T, the flow of liquid inside the tube T is blocked.

Then, pinch the thin part 12a of the first arm part 12 and the vicinity of the thin part of the second arm part with your fingers, and
When the second operation piece 16 is pushed upward as shown by the arrow with a finger, the vertical piece 14 is slightly bent outward against the elasticity of the thin portion 12a, and the engaging claws 17 and 18 are disengaged. Therefore, the elasticity of the hinge portion 11 restores the first and second arm portions 12 and 13 to the states shown in FIGS. 1 and 2, and the flow of liquid within the tube T is restored.

To remove the tube clamp 10 from the tube T, the vertical pieces 14 and 15 may be slightly pushed apart and removed.

<Other Embodiments of the Present Invention> Although one embodiment of the present invention has been described above, the tube clamp of the present invention is not limited to the structure of the above embodiment, and various modifications can be made in the structure of each part. Of course, for example, the engaging portions that engage the tips of the first and second arm portions with each other may have any other known appropriate structure; By increasing the length and providing a plurality of engagement claws 18 above and below so that the engagement state can be set in multiple stages, the amount of liquid in the tube T can be adjusted and shut off.

<Effects of the present invention> As explained above, the tube clamp of the present invention can be easily attached to the tube from the side.
It can be easily temporarily fixed without coming off from the tube or shifting along the tube, and when necessary, the engaging parts 17 and 18 can be reliably and easily engaged by simply pressing the arm parts 12 and 13. I can,
Therefore, it is extremely effective for use in major emergencies, such as when attached to a blood transfusion tube, for example.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the tube clamp of the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a cross-sectional view in FIG. 1, and FIG. 4 is a cross-sectional view in FIG. FIG. 5 is a side view showing a state in which the engaging claws are engaged. FIG. 6 is a perspective view of a conventional tube clamp. 10... tube clamp, 11... hinge part, 12... first arm part, 13... second arm part,
12a, 13a... Thin wall portion, 14, 15... Vertical piece, 16... Operating piece, 17, 18... Engaging claw, 1
9, 20... Arc-shaped recess, 21, 22... Rib,
23, 24...stoppa.

Claims (1)

[Claims for Utility Model Registration] They are integrally connected in a flexible manner by an elastic hinge part 11 and are formed in a substantially V-shape, and the opening width between the tip parts is wide enough to pass through the flexible tube. The set first and second arm portions 12 and 13, and the distal end portions of the first and second arm portions 12 and 13 provided on the distal end side of the first and second arm portions 12 and 13. engaging parts 17 and 18 that are coupled to each other by pressing in a direction toward each other against the elasticity of the hinge part 11; and an inner surface of at least one of the first and second arm parts 12 and 13. In the state in which the engaging portions 17 and 18 are disengaged, the flexible tube is temporarily held in the lateral direction slightly bent by the elasticity of the hinge portion 11, and the flexible tube is temporarily fixed. Joint part 1
a holding part for holding the flexible tube in a state where the flexible tube is bent with a larger deflection than the temporarily fixed state in the engaged state of the parts 7 and 18; and at least one of the first and second arm parts 12 and 13. a stopper provided on the inner surface of the holding part and protruding obliquely toward the holding part between the holding part and the distal end of the arm part, and having a length that allows the flexible tube to pass laterally; The flexible tube, which is passed laterally between the distal ends of the first and second arm parts 12 and 13 and further passed laterally through the distal end of the stopper, is held and temporarily held by the holding part. A tube clamp integrally molded from plastic that is designed to stop.