JPH0523792B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a clamp for closing a tube or the like.

[Prior Art] After collecting an infusion solution in a medical bag, it is necessary to bleed air from inside the bag, and then temporarily or semi-permanently close the liquid collection tube of the medical bag. This kind of work is performed in a clean place such as a clean bench from the viewpoint of hygiene management. The following methods are available for blocking the liquid collection tube of this medical bag. A loop is made in advance in the liquid sampling tube of the medical bag, and when the intention is to close it, the liquid sampling tube is occluded by tying it. Seal the liquid collection tube in the medical bag with heat or a high-frequency sealer. Caulk the liquid sampling tube of the medical bag with a soft metal such as an aluminum ring. The liquid sampling tube 6 of the medical bag is shown in Figure 8a.
The clamp 1' is passed through the holes 4a and 7 of the clamp 1' as shown in FIG. 8 and fixed as shown in FIG. 8b.
The liquid sampling tube 6 is closed by the protrusions a and b. For example, it is closed with a clamp 1'' known in Japanese Utility Model Application Publication No. 63-8048. That is, this clamp 1'' is installed in a liquid sampling tube 6 constituting a medical bag or the like. , as shown in FIG. 9a, the wedge-shaped engaging portion 2 is inserted through the bent portion 8
A first clamping part 3 having a protrusion a and a second clamping part 5 having a protrusion b and an engagement groove 9 for engaging the wedge-shaped engagement part 2 are integrally molded. The liquid sampling tube 6 is sandwiched between the respective protrusions a and b of this clamp 1'' as shown in FIG. 9b,
By inserting the wedge-shaped engagement portion 2 into the engagement groove 9, the liquid sampling tube 6 is closed by the projections a and b.

[Problem to be solved by the invention]

However, in the method of closing the liquid sampling tube of a medical bag, it is troublesome to make a loop in the liquid sampling tube in advance, and tying this loop requires more force than expected, and it is necessary to tie it at the right time. If you do not do this, you will not be able to bleed air from the medical bag, and it will also look bad.

This closure method requires a heat or high-frequency sealer, takes up space in a narrow clean bench, and changes the air flow within the clean bench, resulting in undesirable hygiene control results.

This method of closing requires placing an aluminum ring over the liquid sampling tube and caulking the aluminum ring using pliers, which is poor workability.

In the closing method, the clamp 1' cannot be attached to the liquid sampling tube 6 in advance, and it is necessary to attach the clamp 1' to the liquid sampling tube 6 when closing the liquid sampling tube 6, which is cumbersome. In addition, these clamps 1' and 1'' both clamp the liquid sampling tube 6 between the protrusions a and b.
Since the mechanism is to close the liquid sampling tube 6, if the liquid sampling tube 6 is made of a material with strong resilience, it is necessary to use a strong and rigid material for the first and second clamping parts 3 and 5. If the liquid tube 6 becomes insufficiently occluded or a tensile force is applied to the liquid sampling tube 6, the protrusions a and b of the clamp 1' will be displaced from the liquid sampling tube 6, causing the liquid sampling tube 6 to become occluded. There is a risk that it will be insufficient.

Furthermore, what is common to these closing methods is that after the liquid sampling tube 6 is blocked and the unnecessary liquid sampling tube 6 is removed, there is a risk of bacterial contamination, foreign matter, etc. entering from the opening of the liquid sampling tube 6. There was a fear that

Therefore, the present invention was made in view of the above circumstances, and it is possible to securely attach the tube in advance without moving it to the tube, etc., and the work is easy, and even if the tube is made of a material with strong resilience. It is an object of the present invention to provide a clamp that can completely close a tube and does not come off the tube.

Another purpose is to prevent bacteria and other contamination of the opening of the tube after the tube is closed with a clamp and the tube that is no longer needed is removed.

[Means to solve the problem]

In order to solve the above problems, the clamp of the present invention is a clamp used to clamp and press a tube formed from a soft material to close the flow path of the tube, and the clamp has a convex engaging portion. an engaging groove into which the engaging part of the first clamping part can be inserted and engaged, and a hole of a corresponding size through which the tube is inserted is bored. a second clamping part having two walls provided therein, and connecting the ends of the first clamping part and the second clamping part so that they are in positions facing each other, and inserting the tube into the second clamping part. and a bent portion in which a hole of a desired size is bored, and the tube, which is passed through the holes of each of the second clamping portion and the bent portion, is inserted into the engagement groove. It is constructed so that it can be closed by pressure by joining.

Further, a plurality of engagement protrusions may be provided on the protrusion engagement part of the first holding part. Furthermore, on the outer surface of the clamp,
A protrusion into which the opening of the tube can be inserted may be provided.

[Effect]

According to the clamp configured as described above, the tube can be passed through the holes provided in the two walls of the second holding part and the hole of the bent part in advance, and the clamp can be attached to the tube when necessary. By inserting the convex engaging portion of the first pinching portion into the engagement groove of the second pinching portion, the tube is compressed and closed, and the first and second pinching portions are engaged in this state. together to close the tube and prevent the clamp from coming off the tube. Also, after passing the tube through the holes provided in the two walls of the second clamping part and the hole in the bent part, the first clamping part of the engaging part is inserted into the engagement groove of the second clamping part. When the mating protrusion is locked, the clamp can be reliably attached in advance without moving to the tube without blocking the tube, and other engaging protrusions can be locked in the engaging groove using a force exceeding a predetermined level. The tube becomes completely blocked. Further, when the opening of the protruding tube provided on the outer surface of the clamp is inserted after the tube is closed, the opening of the tube does not come into contact with the outside air.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 7.

FIG. 1 is a perspective view of the clamp of the present invention, and FIG. 2 is a perspective view showing the operating state of the clamp. In the drawings, reference numeral 1 indicates a clamp, and the clamp 1 includes a first clamping part 3 having a convex engaging part 2, a second clamping part 5 having two wall parts 4, 4, and It consists of a bent part 8 which connects the first and second holding parts 3 and 5 and has a hole 7 large enough to allow a liquid sampling tube 6 to be inserted therethrough.

The first holding portion 3 is a rectangular plate made of synthetic resin or the like. The first holding part 3 has a convex engaging part 2 erected thereon as described above, and this convex engaging part 2 has a distal end 2a.
The base end portions 2b are each formed in a wedge shape with a constricted base end portion, and a stepped portion 2c is formed between the distal end portion 2a and the base end portion 2b. In addition, the tip 2
As shown in FIG. 3, a may have various shapes.

The second clamping part 5 is made of synthetic resin or the like like the first clamping part 3, and is also made of a rectangular plate. The second clamping part 5 and the first clamping part 3 are connected by the bending part 8 so as to be openable and closable, as described above. The two walls 4, 4 of the second holding part 5 are provided with holes 4a, 4a through which the liquid sampling tube 6 is inserted. These two wall parts 4 and 4 form an engaging groove 9 for engaging the aforementioned convex engaging part 2, and also a hook part to be hooked to the step part 2c of the engaging part 2. 4b,
4b respectively. Furthermore, these wall portions 4,
4, there is a distal end portion 2a of the engaging portion 2.
A protrusion 10 for closing the liquid sampling tube 6 is provided opposite to the protrusion 10 . Therefore, the wall portion 4,
4, and the hole 7 of the bent portion 8.
Pass the liquid sampling tube 6 through the tube and insert the convex engaging part 2 of the first clamping part 3 into the engagement groove 9 formed by the two walls 4, 4 of the second clamping part 5. , the liquid sampling tube 6 is compressed and closed by the protrusion 10 and the tip 2a of the engaging part 2, and the engaging part 2 is further inserted to change the step of the engaging part 2 to 2c, 2c between the walls 4, 4. When the hooks 4b and 4b are hooked, the first and second holding parts 3 and 5 are completely locked, and
The liquid collection tube 6 is completely occluded.

Note that a protrusion 11 is provided on the side surface of the second holding part 5 into which the opening of the liquid sampling tube 6 can be inserted. Further, 12 is an anti-slip device to prevent the clamp 1 from slipping when operated by a person.

Next, the case where the clamp 1 having the above structure is used in the liquid sampling tube 6 of a medical bag will be explained based on FIG. 2.

First, the hole 4 of the second clamping part 5 of the clamp 1
A, 4a and a liquid sampling tube 6 in the hole 7 of the bent part 8.
are passed through each as shown in Figure 2a. Since the holes 4a, 4a have approximately the same cross-sectional area as the liquid sampling tube 6, the clamp 1 can be attached to the liquid sampling tube 6.
It will not move out of alignment.

Next, after injecting the infusion into the medical bag, with the liquid collection tube 6 facing upward, the medical bag is compressed by hand and the air inside the bag is removed. After the interface between the air and the infusion agent passes through the clamp 1 in the liquid sampling tube 6, the clamp 1
Press the first and second holding parts 3 and 5 of the body with your hands in the direction of the arrow C in FIG. 2B, centering on the bent part 7.

Then, the engaging part 2 of the first holding part 3 is inserted into the engaging groove 9 of the second holding part 5. Since the tip 2a of the engagement part 2 is wedge-shaped, when pressed with strong force, the walls 4 deform outward, and the tip 2a is gradually inserted deeply into the engagement groove 9. As a result, the liquid sampling tube 6 is closed, and the stepped portion 2a of the engaging portion 2 is finally caught on the hooking portions 4b, 4b of the engaging groove 9, and these first and second clamping portions 3 and 5 are is completely locked and the liquid sampling tube 9 is completely occluded.

In addition, since the liquid sampling tube 6 that is closed by the clamp 1 is completely blocked, it is possible to cut off unnecessary liquid sampling tubes 6 with bottle needles, etc. The opening can be fitted into the projection 11 as shown in FIG. 2C. If such an operation is performed, the liquid sampling tube 6
Since it is folded in half, the liquid sampling tube 6 can be more completely closed, and there is no possibility of bacterial contamination or contamination of foreign matter from the opening of the liquid sampling tube 6, making it convenient for transportation, infusion, etc.

FIG. 4 shows another embodiment of the present invention, in which the clamp 1 is composed of two parts, and the other configurations and functions are the same as those of the embodiment shown in FIGS. 1 to 3. A symbol is attached and the explanation thereof is omitted.

FIG. 5 shows another embodiment of the present invention,
The bent portion 8 is provided with a protrusion 11 into which the opening of the liquid sampling tube 6 can be inserted, and since the other configurations and functions are the same as those of the embodiment shown in FIGS. 1 to 3, symbols are added. Therefore, the explanation will be omitted.

6 and 7 show another embodiment of the present invention, in which an engaging protrusion 13 and a larger engaging protrusion than the engaging protrusion 13 are provided on the side wall of the engaging part 2 of the first clamping part 3. 14 are provided, respectively, and a locking groove 15 is provided on the inner wall surface of one of the wall portions 4 to lock the engaging protrusions 13 and 14, respectively.
When the liquid sampling tube 6 is passed through the holes 4a, 4a provided in the two walls 4, 4 of the second clamping part 5 of the clamp 1 and the hole 7 of the bent part 8,
When the engagement protrusion 13 of the first clamping part 3 is engaged with the engagement groove 15 of the wall part 4, the clamp 1 is connected to the liquid sampling tube 6.
The clamp 1 can be more reliably attached to the liquid sampling tube 6 in advance without moving from the container, and the clamp 1 can be prevented from opening unexpectedly. Further, even if some force is applied to the clamp 1, the liquid sampling tube 6 will not be occluded. When attempting to close the liquid sampling tube 6, if a force greater than a predetermined level is applied to the first and second holding parts 3 and 5, the engagement protrusion 14 is locked in the locking groove 15, and the liquid sampling tube 6 is closed. It can be completely blocked.

In this embodiment, a protrusion 11 into which the opening of the liquid sampling tube 6 can be inserted into the second holding part 5 is provided.
is provided.

〔Effect of the invention〕

As described in detail above, the clamp of the present invention is a clamp used to clamp and press a tube formed of a soft material to close the flow path of the tube, and has a convex engaging portion. an engaging groove into which the engaging part of the first clamping part can be inserted and engaged, and a hole of a size through which the tube can be inserted is bored, respectively. A second clamping part having two walls provided therein, and connecting the ends of the first clamping part and the second clamping part so that they are in positions facing each other, and inserting the tube into the second clamping part. The tube is previously passed through the holes provided in the two walls of the second clamping portion and the hole of the bent portion, and the tube is clamped to the tube. When necessary, by inserting the convex engaging part of the first clamping part into the engagement groove of the second clamping part, the tube can be closed by pressure, and the tube can be attached to the first and second clamping parts in this state. The second clamping portion can be engaged to close the tube and prevent the clamp from coming off the tube.

Therefore, this clamp can be attached to the tube in advance and can close the tube with one touch, is easy to work with, has a good appearance, and can completely close the tube.
This has the effect of preventing the clamp from coming off the tube.

Furthermore, if a plurality of engagement protrusions are provided on the convex engagement portion of the first clamping portion, the tube can be inserted into the holes provided in the two walls of the second clamping portion and the hole of the bent portion. After passing it through, insert one part of the engaging part into the engaging groove of the second holding part.
It is possible to securely attach the clamp to the tube in advance without blocking the tube by locking the engagement protrusion of the tube, and by locking the other engagement protrusion in the engagement groove with a force exceeding a predetermined level, the tube can be completely closed. It can be closed. Therefore, the clamp does not open inadvertently and move on the tube, making the work easier.

Furthermore, the outer surface is provided with a protrusion into which the opening of the tube can be inserted, and when the opening of the tube is inserted into the protrusion after the tube is closed, the opening of the tube does not come in contact with the outside air, and bacteria from this opening are removed. It is effective in preventing contamination, foreign matter, etc.

[Brief explanation of drawings]

1 to 7 show embodiments of the clamp of the present invention, FIG. 1 is a perspective view of the clamp of the present invention, FIG. 2 is a perspective view of the clamp in use, and FIG.
The figure is a side view showing the shape of the engaging part of the first clamping part of the clamp, FIG. 4 is a side view showing another embodiment of the clamp of the present invention, and FIG. 5 is another embodiment of the clamp of the present invention. FIG. 6 is a perspective view showing another embodiment of the clamp of the present invention; FIG. 7 is a side view showing how the clamp is used; FIG. 8a is a perspective view showing a conventional clamp; FIG. 8b is a side view of a state in which a liquid sampling tube is clamped, FIG. 9a is a perspective view showing a conventional clamp, and FIG. 9b is a perspective view of a state in which a liquid sampling tube is clamped. 1, 1', 1''... Clamp, 2... Convex engaging part, 3... First clamping part, 4... Wall part, 4a, 7
... hole, 5 ... second holding part, 6 ... liquid sampling tube (tube), 8 ... bending part, 9 ... engagement groove,
11... Protrusion, 13, 14... Engagement protrusion.

Claims (1)

[Scope of Claims] 1. A clamp used to clamp and press a tube formed from a soft material to close the flow path of the tube, the first clamping portion having a convex engaging portion; and two walls each having an engaging groove formed therebetween into which the engaging portion of the first clamping portion can be inserted and engaged, and a hole of a corresponding size through which the tube is inserted. a second clamping part having a second clamping part, and a hole having a size that allows the tube to be inserted through the first clamping part and the second clamping part, and connecting the ends of the first clamping part and the second clamping part so that they face each other. and a bent portion in which a portion is bored, and the tube, which is passed through the hole portion of each of the second clamping portion and the bent portion, is pressed and closed by the engaging portion inserted into the engaging groove. A clamp characterized in that it is configured to be able to 2. The clamp according to claim 1, wherein a plurality of engagement protrusions are provided on the convex engagement portion of the first clamping portion. 3. The clamp according to claim 1 or 2, further comprising a protrusion on the outer surface into which the opening of the tube can be inserted.