JP3223489B2 - Tube clamp - Google Patents

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 a tube clamp suitable for, for example, transferring an infusion solution to an infusion bag through the tube, closing the tube, and separating an unnecessary portion of 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, a conventional tube clamp, Oyo tube T at both ends
And a tubular body 40 having a fragile portion 41 and a tube T fitted and connected to one end of the tubular body 40.
And the closing part 42 for closing by pressing is formed separately and attached to the tube T separately (actual open flat 4-37).
No. 437). Reference numeral 43 in the figure denotes a lid for separating the cylindrical body 40 at the fragile portion 41 and then closing the opening of the separated portion. 44 is a flexible bag, 4
5 is a branch pipe, 46 is a liquid introduction needle, and 47 is a chemical bottle.

[0003]

However, in the conventional tube clamp, a closed / closed portion for closing the tube and a cylindrical body provided with a separation weak portion for separating unnecessary portions of the tube are separate bodies. Therefore, even if the closing portion and the cylindrical body are each made smaller, there is a limit in terms of manufacturing and handling, so that there is a problem of bulkiness. In addition, after closing the tube at the closing portion, the tube is switched to a cylindrical body attached to another portion of the tube, and unnecessary portions of the tube must be separated, so that there is a problem that operability is poor. .

[0004] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a tube clamp having excellent operability.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a tube.
A body provided with a connecting portion at one end capable of freely fitting and connecting (T) , and having a flow path communicating the connecting portion, and the tube;
A closing portion for pressing and closing (T) is integrally formed, and a connecting member capable of freely fitting and connecting the tube (T ′) is connected to the other end of the main body and assembled. The gist is a tube clamp.

In the present invention, a tube is provided at the other end of the main body.
A method of connecting and assembling a connecting member capable of freely fitting and connecting (T ′) has a male screw in the main body, a flow path portion of the main body is tapered, the connecting member has a female thread, The portion is a connection joint forming a taper, and this connection joint is screwed into the main body and connected.

[0007]

The present invention is characterized in that the closing portion and the main body are manufactured in a state of being integrally formed. Then, by fitting the tube to the connection portion and the connection joint of the main body, the tube is attached to both ends of the integrated portion of the closing portion, the main body, and the connection joint.

Further, closing portion and body are formed in one piece, further, because it is connected to connection joint is screwed to the body, after chemical-up the nipped the tube (T) closed, a portion thereof The unnecessary part of the tube (T ′) on the liquid introduction needle side can be separated without changing the holding position.

[0009]

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

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

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment 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 formed of a synthetic resin having appropriate elasticity and rigidity such as polypropylene, polyacetal, and rigid polyvinyl chloride, and the tube clamp C is a connection portion that can fit and connect the tube T. The main body 1 having a flow path 14 communicating with the connecting member 13 and a connecting member 53 capable of fitting and connecting a tube T ′ for separating the main body 1 from the main body 1 in the flow direction. Are connected and assembled. Further, a closing portion H for pressing and closing the tube T fitted and connected to the connection portion 13 is provided in a state of being integrally formed with the main body 1.

Next, the main body 1 will be described. The main body 1 is formed in a cylindrical body, and the cylindrical body is used as a connecting portion 13.
The inside of the cylindrical body is defined as a flow path 14. In the direction of the flow path of the main body 1, the threaded portions 11, 51 and the flow path 14 for separation are
A taper 12 or 52 for maintaining airtightness is formed.

Next, the closing portion H will be described. The tube receiving base 2 for receiving the tube T fitted and connected to the connection portion 13 of the main body 1 along the flow path direction is provided in series. In addition, the swing receiving member 3 is attached to the tube receiving base 2.
Are swingably connected by a thin portion 4.

The tube receiving base 2 is provided with a receiving portion 21 extending from the end of the main body 1 in the flow direction, and a recess 22 is provided at an intermediate portion 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 a plane perpendicular to the flow path direction is a semicircular shape, and the inner peripheral surface of the concave portion 22 is formed. Is formed such that a vertical cross-sectional shape in a plane orthogonal to the flow path direction is an arc shape. The free end of the tube receiving base 2 is provided with a locking portion 23 having a hook-like tip.

The swinging member 3 is provided with a pressing member 31 formed in a shape to be fitted into the concave portion 22 in a state where the tube receiving table 2 and the swinging member 3 are closed. Pressing member 31
Is composed of two pressing plates 31a opposed to each other and a reinforcing plate 31b provided with both ends connected to the two pressing plates 31a, respectively. As shown in FIG. 5, the distal end 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 concave portion 22 in the flow path direction. The reinforcing plate 31b includes two pressing plates 31a.
Are provided to prevent bending in the directions approaching each other. A free end of the swinging member 3 is provided with a tube receiving base 2.
A locked portion 32 that is locked by the locking portion 23 when the swing member and the swing member are closed is provided. When the tube receiving base 2 and the swinging member 3 are brought close to each other, the locking portion 23 and the locked portion 32 move while the tip of the locked portion 32 and the tip of the locking portion 23 are in contact with each other. The bent portions 32 are bent by each other, and the locked portion 32 is locked by the hook portion at the tip of the locking portion 23, so that the tube receiving base 2 and the swing member 3 are held in a closed state.

The swinging member 3 has a notch 33 for allowing the main body 1 to escape when the tube receiving base 2 and the swinging member 3 are closed, and a notch 33 in a plane orthogonal to the flow path direction. A holding portion 34 is provided for holding the tube T in a state in which the cross-sectional shape of the inner peripheral surface is arc-shaped and the tube T is internally fitted to the receiving portion 21.

That is, when the tube receiving base 2 and the swing member 3 are moved closer to each other, the pressing member 31 causes the tube T to
2 and the tube support 2 and the swinging member 3
As shown in FIG. 6, the pressing member 31 presses the tube T in a state where the tube T is fitted into the concave portion 22 to close the tube T. As a result, the locked portion 32 engages with the locking portion 23. It is stopped, and the tube receiving stand 2 and the swinging member 3 are held in a closed state. Then, in this state, the closed tube-shaped tube receiving base 2 and the swinging member 3 and the flange 55 are respectively held by both hands and twisted in opposite directions to each other. 5 can be separated, so that unnecessary portions of the tube T ′ can be separated.

[Another Embodiment] Next, another embodiment will be described. As shown in FIGS. 7 and 8, the inner peripheral surface of the concave portion 22 of the tube receiving table 2 is formed at an intermediate portion in the longitudinal direction 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 sandwiched between the protrusion 24 and the reinforcing plate 31b and pressed while being fitted into the recess 22 by the pressing plate 31a, so that the tube T is more firmly closed. You.

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

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

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

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

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 as seen from an arrow II in FIG. 2;

FIG. 5 is a view taken in the direction of arrows II-II in FIG. 2;

FIG. 6 is a view for explaining a closing effect of a tube.

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

8 is a view taken in the direction of arrows III-III in FIG. 7;

FIG. 9 is a view for explaining an operation of closing a tube in a 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 receiving stand 3 Oscillating member 4 Thin part 5 Connection joint 11 Thread part 12 Taper part 13 Connection part 14 Flow path 22 Depression 23 Lock part 24 Projection part 31 Press member 32 Lock part 33 Notch part 34 Hold down Part 51 screw part 52 taper part 53 connecting member 55 flange part H closing part T , T ' tube

Claims (1)

(57) [Claims] 1. A body (1) having a connecting portion (13) at one end thereof to which a tube (T) can be freely fitted and connected, and having a flow path (14) communicating with the connecting portion (13). A closing portion (H) for pressing 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 and assembled.