JPH0331880Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clamp for regulating the flow rate of transport fluid in a fluid transport tube, such as a flexi tube in an intravenous infusion set.

FIG. 1 shows an intravenous infusion set that has been widely used in the past. In this intravenous infusion set, an adjustment clamp 4 is provided in the middle of a flexible tube 3 connected to a pin 1 via a drip bulb 2, and an infusion needle 6 is attached to the lower part of an octopus tube 5 connected to the lower end of the flexible tube 3. It is something that In this set, the amount of infusion can be adjusted by adjusting the adjustment clamp 4 and changing the degree of tightening of the flexi tube 3.

What is shown in FIGS. 2-4 is a conventional adjustment clamp. In the device shown in FIG. 2, a roller 8 is attached to the main body 7, and by pressing and rotating the roller 8 along the groove formed in the main body 7, the amount of infusion flowing into the flexible tube 3 can be adjusted. can. The one shown in FIG.
is movably provided, and this presser plate 12 is attached to a bolt 13.
By pressing with the press plate 12 and the lower plate 11
The tube 3 passed between the two is tightened. In addition, in the one shown in FIG. 4, the degree of tightening can be changed by moving the tube 3 passed through the tapered hole 15 of the plate 14.

However, with any of these adjustment clamps, there is no problem as long as the doctor or the like does not touch the adjustment clamp 4 after adjusting the tightness of the flexi tube 3; The disadvantage is that they can be operated freely with their own hands and the flow rate can be easily adjusted. This is because both types can be operated with one hand.
It is extremely dangerous for a patient to operate the device without permission, and it may even lead to loss of life.

The present invention was developed in view of this point, and is designed to prevent operation with one hand.

For this reason, the present invention includes a cylindrical body member, a tightening tube receiving member for tightening a tube to be tightened that closes the lower bottom part of the body member, and an upper bottom part facing the lower bottom part of the body member. A rotary motion transmitting member rotatably supported; a tube holding member having a portion screwed to the rotary motion transmitting member and the other portion facing the tube receiving member; and a tube holding member integral with the rotary motion transmitting member. Accordingly, an adjustment member is provided that operates while a release operation of a brake lever that is pressed against the rotational motion transmission member so as not to be slidable is performed.

With this configuration, the adjustment member integrated with the rotary motion transmission member cannot be operated unless the brake lever, which is pressed against the adjustment member so as not to be slidable, is simultaneously released with one hand. Because of this, it cannot be operated with one hand.

Hereinafter, the first embodiment of the present invention will be explained with reference to FIGS. 5 and 6. What is indicated by the reference numeral 16 is a body member.

A female thread 23 is formed inside the adjustment member 29 (rotary motion transmission member 21), and a male thread 25 formed on a part of the tube holding member 24 is screwed into this female thread 23. Tube holding member 2
A protrusion 26 is formed at both ends of the body member 4 , and is gripped by a grip portion 27 formed on the body member 16 . The lower end of the tube holding member 24 faces the tube receiving member 17, and the flexible tube 3 is inserted into the gap 28 therebetween.

An adjustment member 29 (rotational motion transmission member 21) is provided on the upper part of the body member 16.

This adjustment clamp configured as described above shifts the tube receiving member 17 provided at the lower end of the body member 16 by a predetermined amount to insert the tube 3 into the gap 28. In this embodiment, the adjustment member 29 (rotational motion transmission member 21) is directly rotated. 30 is an adjustment member 29 (rotational motion transmission member 2
This is a ring member that supports 1). A serrated portion 31 is formed on a part of the outer periphery of the adjustment member 29 (rotational motion transmission member 21), and the serrated portion 31 is provided with a spring member 32 whose both ends are engaged with the body member 16. A friction member 33 applied with pressure is in pressure contact. In the center of the spring material 32,
Pin member 35 engaged with the upper end of tip lever 34
The proximal ends of the two are connected. The lower end of the lever 34 is
It is locked to a lever support member 36 protruding from the body member 16, and the middle portion is in contact with a fulcrum member 37. In this embodiment, the lever 34
By pushing the lower end of the friction member 33 to the right in FIG. 5 to remove the friction member 33 from the serrated portion 31, the adjusting member 29 (rotary motion transmitting member 21) can be freely rotated.

Since the present invention is constructed as explained above, it is impossible to operate it with one hand.
This has the effect of preventing patients from changing the infusion time on their own. It goes without saying that the present invention can also be used for things other than intravenous infusion sets.

[Brief explanation of the drawing]

FIG. 1 is a front view of the intravenous infusion set, FIGS. 2 to 4 are perspective views of a conventionally used adjustment clamp, and FIG. 5 is a longitudinal sectional view of the first embodiment of the present invention. FIG. 6 is a cross-sectional view of section X in FIG. 5. 3...Flex tube, 16...Body member, 17...Tube receiving member, 21...Rotary motion transmission member (adjustment member) 24...Tube holding member, 28...Gap, 29...Adjustment member (rotary motion transmission member), 31... Serrated portion, 33... Friction member, 34... Lever.

Claims (1)

[Scope of utility model registration request] A cylindrical body member, a tightening tube receiving member for tightening a tube to be tightened that closes a lower bottom portion of the body member, and a tube support member rotatably supported within an upper bottom portion facing the lower bottom portion of the body member. a rotary motion transmitting member that is integral with the rotary motion transmitting member; a tube holding member that is partially screwed to the rotary motion transmitting member and whose other portion faces the tube receiving member; and a rotary motion transmitting member that is integral with the rotary motion transmitting member. A flow rate adjustment clamp for a fluid transport tube, characterized in that it is provided with an adjustment member that operates while a release operation of a brake lever that is pressed against the brake lever is performed.