JPH07136262A - Tube clamp - Google Patents

Abstract

PURPOSE:To provide the tube clamp featuring a low cost, a small size and excellent operability. CONSTITUTION:A main body having a juncture 13 capable of freely fitting and connecting a tube T at one end and a flow passage for communicating this juncture 13 and a closing part H for closing the tube T by clamping and pressing the tube are integrally molded. This tube clamp is assembled by connecting a connecting member capable of freely fitting and connecting the tube T at the other end of the main body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tube clamp, and more particularly to a tube clamp used for an infusion set, a blood transfusion set and the like. Such a tube clamp is, for example, a tube clamp suitable for blocking the tube and separating the unnecessary portion of the tube after the infusion solution is transferred to the infusion bag through the tube.

[0002]

2. Description of the Related Art FIG. 10 is a schematic view of an infusion set equipped with a conventional tube clamp. As shown in FIG. 10, in the conventional tube clamp, the tube T is fitted and connected to both ends of the tube T, and the tube T is fitted and connected to one end of the tube 40. And the closing portion 42 that closes by closing the pressure is formed separately and attached to the tube T separately (see Japanese Utility Model Laid-Open No. 4-37437). Reference numeral 43 in the figure denotes a lid body for separating the tubular body 40 at the fragile portion 41 and then closing the opening of the separated portion. Further, 44 is a flexible bag, 45 is a branch pipe,
Reference numeral 46 is a liquid introduction needle, and 47 is a liquid medicine bottle.

[0003]

However, in the conventional tube clamp, the closing portion for closing the tube and the tubular body having the separating weak portion for separating the unnecessary portion of the tube are separate members. However, even if the closed portion and the tubular body are downsized, there is a limit in terms of manufacturing and handling, and thus there is a problem of being bulky. In addition, after the tube is closed at the closing part, it has to be replaced with a tubular body attached to another part of the tube and an unnecessary part of the tube must be separated, which causes a problem of poor operability. .

The present invention has been made in view of the above circumstances, and an object thereof is to provide a tube clamp excellent in operability.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a main body having a connecting portion at one end thereof capable of freely fitting and connecting a tube and having a flow path communicating with the connecting portion and the tube are closed by narrowing the pressure. A gist of a tube clamp is characterized in that a closing portion is integrally molded and a connecting member capable of freely fitting and connecting a tube is connected to the other end of the main body to be assembled.

In the present invention, the method of assembling by connecting the connecting member capable of freely fitting and connecting the tube to the other end of the main body is such that the main body has a male screw and the flow passage of the main body is formed into a taper, The connection member has a female thread, and the flow path part is a connection joint having a taper, and the connection joint is screwed into the main body to be connected.

[0007]

The present invention is characterized in that the closing portion and the main body are integrally molded. Then, by fitting the tube to the connecting portion and the connecting joint of the main body, the tube is attached to both ends of the integrated one of the closing portion, the main body and the connecting joint.

Further, since the closing portion and the main body are formed of one component, and further, the connection joint is screwed and connected to the main body, after the chemical solution is introduced, the tube is pressed and closed to hold the portion. In this state, the unnecessary part of the tube on the liquid introducing needle side can be separated without changing the holding.

[0009]

According to the present invention, since the closing portion, the main body and the connecting joint are paired by screwing, the operability can be improved.

Further, according to the present invention, in the state before the tube is closed, the tube can be received without bending, so that the transfusion can be stably transferred through the tube, and the connecting portion can be transferred. Since no stress is applied to the fitting connection portion between the tube and the tube, it can be prevented from falling off.

[0011]

Embodiments of the present invention will be described below with reference to FIGS.

First, the overall structure of the tube clamp will be described. C in the figure indicates a tube clamp molded from a synthetic resin having appropriate elasticity and rigidity such as polypropylene, polyacetal, hard polyvinyl chloride, etc., and this tube clamp C is a connecting portion at which the tube T can be fitted and connected. The main body 1 having the flow passage 14 communicating with the main body 13 and the connection member 53 capable of fitting and connecting the tube T for separating the main body 1 in the flow passage direction, and the flow passage 14 communicating with the connection member 53 are provided. The connecting joint 5 provided is connected and assembled. Further, a closing portion H that closes the tube T that is fitted and connected to the connecting portion 13 by pressing it is provided in a state of being integrally molded with the main body 1.

Next, the main body 1 will be described. The main body 1 is formed into a tubular body, and the tubular body is used as the connecting portion 13,
The inside of the tubular body is used as the flow path 14. In the flow path direction of the main body 1, the screw parts 11 and 51 and the flow path 14 for separating are
A taper 12 or 52 is formed to maintain airtightness.

Next, the closed portion H will be described. A tube receiving base 2 for receiving the tubes T fitted and connected to the connecting portions 13 of the main body 1 in a state of being along the flow path direction is provided in series. Further, the swinging member 3 is attached to the tube receiving base 2.
Is connected by a thin portion 4 so as to be swingable.

The tube receiving base 2 is provided with a receiving portion 21 in a state of extending from the end portion of the main body 1 in the flow path direction, and a concave portion 22 is provided in the middle of the receiving portion 21. As shown in FIG. 5, the inner peripheral surface of the receiving portion 21 is formed so that the vertical cross-sectional shape in the plane orthogonal to the flow path direction is semicircular, and the inner peripheral surface of the recess 22 is also formed. Is formed so that the vertical cross-sectional shape in a plane orthogonal to the flow path direction is arcuate. The free end of the tube cradle 2 is provided with a hook 23 having a hook-like tip.

The swinging member 3 is provided with a pressing member 31 which is shaped to fit in the recess 22 in a state where the tube receiving base 2 and the swinging member 3 are closed. Pressing member 31
Is composed of two pressing plates 31a arranged to face each other and a reinforcing plate 31b provided in a state where both end portions are connected to the two pressing plates 31a, respectively. As shown in FIG. 5, the tip of the pressing plate 31a is formed in an arc shape having a curvature slightly smaller than the curvature of the inner peripheral surface of the recess 22 when viewed in the flow path direction. The reinforcing plate 31b includes two pressing plates 31a.
It is provided to prevent the members from bending in the direction of being close to each other. In addition, the free end of the swinging member 3 is attached to the tube receiving base 2
A locked portion 32 that is locked to the locking portion 23 when the rocking member and the swing member are closed is provided. The locking portion 23 and the locked portion 32 contact the tip of the locked portion 32 and the tip of the locking portion 23 when the tube receiving base 2 and the swinging member 3 are brought close to each other. The hooked portions 32 are locked to the hooks at the tips of the locking portions 23 by bending each other, and hold the tube receiving base 2 and the swinging member 3 in a closed state.

Further, the swing member 3 has a notch 33 for letting the main body 1 escape when the tube receiving base 2 and the swing member 3 are closed, and a plane perpendicular to the flow path direction. A pressing portion 34 for holding the tube T in an internally fitted state by the receiving portion 21 and the cross-sectional shape of the inner peripheral surface thereof is provided.

That is, when the tube receiving base 2 and the swinging member 3 are brought closer to each other, the pressing member 31 moves the tube T into the concave portion 2.
2, the tube support 2 and the swinging member 3
When the and are brought close to each other, as shown in FIG. 6, the pressing member 31 presses the tube T in a state where the tube T is fitted in the recess 22 to close the tube T, so that the locked portion 32 is engaged with the locked portion 32. It is stopped and held in a state in which the tube receiving base 2 and the swinging member 3 are closed. Then, in this state, the closed tube-shaped tube receiving base 2 and the swinging member 3 and the flange portion 55 are respectively held by both hands and twisted in opposite directions, whereby the main body 1 and the connection joint are connected. 5 can be separated, and thus unnecessary portions of the tube T can be separated.

[Other Embodiments] Next, other embodiments will be listed. As shown in FIGS. 7 and 8, an inner peripheral surface is formed at an intermediate portion in the longitudinal direction of the concave portion 22 of the tube receiving base 2 so that a vertical cross-sectional shape in a plane orthogonal to the flow path direction becomes an arc shape. The formed protrusion 24 may be provided. In this case, as shown in FIG. 9, the tube T is pinched by the protrusion 24 and the reinforcing plate 31b and pressed by the pressing plate 31a while being fitted into the recess 22, so that the tube T is more firmly closed. It

The specific configuration of the closed portion H is not limited to the configuration shown in the above embodiment, but various configurations are possible.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a perspective view of a tube clamp according to an embodiment of the present invention in an open state.

FIG. 2 is a plan view showing an open state of the tube clamp according to the embodiment of the present invention.

FIG. 3 is a left side view of the tube clamp according to the embodiment of the present invention in an open state.

FIG. 4 is a view on arrow I-I in FIG.

5 is a view taken along the line II-II in FIG.

FIG. 6 is a diagram for explaining the closing action of the tube.

FIG. 7 is a plan view of a tube clamp according to another embodiment in an open state.

FIG. 8 is a view on arrow III-III in FIG.

FIG. 9 is a view for explaining the closing action of the tube in the tube clamp according to another embodiment.

FIG. 10 is a schematic view of an infusion set equipped with a conventional tube clamp.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Tube cradle 3 Swing member 4 Thin part 5 Connection joint 11 Screw part 12 Tapered part 13 Connection part 14 Flow path 22 Recessed part 23 Locking part 24 Projection part 31 Pressing member 32 Locked part 33 Notch part 34 Presser Part 51 Screw part 52 Tapered part 53 Connection member 55 Collar part H Closure part T Tube

Claims (1)

[Claims] 1. A main body (1) having a connecting portion (13) at one end thereof, into which a tube (T) can be freely fitted and connected, and a flow path (14) communicating with the connecting portion (13), and A closing part (H) for narrowing and closing the tube (T) is integrally formed, and a connecting member (53) capable of freely fitting and connecting the tube (T) is connected to the other end of the main body (1). A tube clamp characterized by being assembled.