JPH0223429B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a nozzle-equipped tube container containing a drug that can discharge medicine from the nozzle-equipped tube container all at once with little resistance. The present invention, for example,
It is used to directly inject a viscous, semi-liquid drug into the cow's udder for the prevention and treatment of mastitis in cows.

[Conventional technology]

For drugs packed in sealed tube containers with nozzles, an outlet with a smaller diameter than the tube projects from one end of the tube, a thread is cut on the outer periphery of the outlet, a cap with a nozzle is screwed onto this screw, and the center part of the outlet is made of aluminum. It is stored in a container sealed with foil, etc. When filling the contents of the tube, such as drugs, fill the tube from the other end, then press the other end flat, preferably heat-seal it, and seal this flat part between 2 and 3.
It is folded three times to cut off contact with the outside air. In use, the sealing part of the tube container made of aluminum foil or the like is stretched and torn into pieces by pressing with an instrument having a protruding part, and the contents are forced out through the torn hole.

Furthermore, as a method for opening a tube container with a nozzle, Japanese Utility Model Publication No. 58-21396 discloses a method in which the annular cutting edge is pushed into the sealing part, but in this method, the cutting edge is annular. Because there is
Cutting stress is not concentrated and resistance is large, making it difficult to cut. Furthermore, the sealing material, such as aluminum, may stretch and be torn to pieces, and the remains of the sealing piece may get mixed into the drug, or a portion may remain at the outlet, with the cut part acting as a valve to prevent the contents from being discharged. to disturb.

In addition, Utility Model Publication No. 12-3736 and Utility Model Application Publication No. 1988-
Publication No. 133440 discloses a cutting edge with a sharp tip, but in the case of the former, since the tip is cut on two planes, a V-shaped crack first occurs and the sealing piece is cut into two or more pieces. It is not possible to cut out the sealed part in a circular shape leaving only a part intact. In the latter case, even if the seal can be cut into an almost circular shape, there is no part to press the cut seal against the inner wall of the container, and if the seal is floating and strong extrusion pressure is applied, the seal will break. It is pushed back and blocks the opening, creating strong extrusion resistance and making it unusable.

[Problem to be solved by the invention]

However, when injecting the contents consisting of a highly viscous drug such as an anti-inflammatory substance all at once through a pore, simply pushing a hole into the sealed part will not only result in a small outlet, but also cause the pieces of the seal to be torn off. It has the function of a shutoff valve, and when extruding, there is a large resistance and a long time is required, resulting in failure of ejection, rupture of the tube container, etc.

When using a drug at a stenotic site in an animal, it is painful, especially if there is inflammation, so it is desirable to perform the injection process in a short time, and it is possible to drill a hole with low drainage resistance with a simple operation. There is a need for a tube container with a nozzle that can be processed so that the cut-off sealing piece does not close the opening even when a strong discharge pressure is applied.

[Means of problem solving]

The present invention solves the above-mentioned problem, and has a structure including a nozzle, which has a screw on the inner periphery that is threadedly engaged with the outer periphery of the outlet of the container, and has a nozzle protruding from the top having an injection hole. A tube container with a drug-containing nozzle formed by screwing together a cap, in which a space is provided between the smooth seal at the outlet of the tube container and the back surface of the top of the cap in the state before opening, and the above-mentioned The base of the nozzle protrudes around the entire circumference, and the tip of the base cuts out the sealing part in a substantially circular shape, leaving only a part, and the cutting edge is cut diagonally so that the part can be pressed against the inner wall of the container. , the cutting edge is close to the sealing part, and
The narrow diameter part that is not in contact with the sealing part on the inner surface of the container transitions to the wide diameter part via a step at a distance shorter than the length of the cut sealing piece, leaving only a part. do.

In the present invention, the protruding part on the back surface of the top of the cap, that is, the tip of the nozzle base rotates when the seal is opened and acts as a cutting edge for cutting into a circular shape, so it forms an acute angle of 60 degrees or less, preferably 50 to 35 degrees. Cut it like this. Furthermore, the shape of the cutting edge is such that it is cut diagonally so that it can be cut out in a substantially circular shape, leaving only a portion of the sealed portion. For example, the third
As shown in the figure, the nozzle base is cut diagonally on one plane, as shown in Fig. 4, it is cut diagonally on a gently curved surface, or the above cut surface is shaved toward the inner circumference. Examples include. Moreover, the nozzle base needs to protrude over almost the entire circumference so that the sealing piece can be pressed against the inner wall of the container after cutting with only a portion left intact.

The inner diameter of the container is preferably the same as or slightly wider than the diameter of the nozzle base at the portion in contact with the sealing piece. When cutting, it is preferable to cut the area as close to the periphery of the stretched sealing area as possible. This peripheral portion is easy to cut because the tension of the sealing material to be cut is large. The portion in contact with this sealing portion is defined as a narrow diameter portion. The length of the narrow diameter portion must be shorter than the length of the sealing piece to be cut. This narrow diameter portion transitions to a wide diameter portion via a step.

In this case, the sealing piece that is cut with only a portion left tends to warp outward due to the characteristics of aluminum foil. When this warped sealing piece touches the step between the narrow diameter part and the wide diameter part, the tip of the sealing piece touches the side of the wide diameter part or the step, as shown in Figure 5. Adheres to the inner wall.

The annular stopper has a resistance that allows the cutting edge to be brought close to the sealing part and to instruct the discontinuation of the screw engagement at a position where the cutting edge does not come into contact with the sealing part. Further, it is located between the shoulder of the tube container and the base of the cap, and when pressed by the rotation of the cap, the cutting edge protruding from the base can be screwed deep enough to cut the sealing part in a substantially circular shape. It is necessary to be able to transform it as follows.

When opening the cap, the more tightly the cap is screwed together, the deeper the screw engagement progresses, and after the leading edge of the cutting edge comes into contact with the sealing part, it is gradually inserted deeper, and the outer periphery of the part of the cutting edge that is not the leading edge functions as a cutting tool. . While the cutting edge rotates, it cuts a part of the sealing part into an almost circular shape, and as the blade continues to engage, the remaining part is pressed and bent by a part that does not have cutting ability, and the cut piece of the sealer cuts the inner surface of the outlet of the tube container. It is closely related to. The cut piece is bent and bent from the remaining part, and is pressed against the outlet inner wall consisting of the narrow diameter part, the step, and the wide diameter part, and even if it is strongly pushed out as it is, the cut piece will not become a resistance to ejecting the contents.

[Effect]

In the present invention, a screw is provided on the outer periphery of the outlet of a tube container, and a cap with a nozzle having a cutting edge on the back surface is screwed together. In the state before use, a space is left between the back of the cap and the sealing part in which the cap can be screwed deeper, and the base of the nozzle protrudes into this space. The cutting edge is made by cutting diagonally so that it can be cut into a nearly circular shape.

Furthermore, the inner surface of the container is divided into a narrow diameter part in contact with the sealing piece and a wide diameter part connected to this through a step, and the length of the narrow diameter part is made shorter than the length of the sealing piece to be cut. It has characteristics. As a result, the sealing piece, which has been cut off with only a portion left, is bent back so that its tip is in contact with the wall surface of the step or wide-diameter portion, as shown in FIG. In such a state, when a strong extrusion pressure A is applied, as shown in FIG. 5, it acts as a force that presses the sealing piece further against the wall surface. On the other hand, if the inner surface of the container does not have the structure of the present invention, as shown in FIG. 7, part of the strong extrusion pressure A acts as a force that enters the wall surface from the tip of the sealing piece attached to the wall surface. As a result, there is a possibility that the sealing piece that has been pressed once will open again and become an ejection resistance at the opening.

Further, by screwing the stopper through the annular stopper, the annular stopper can be deformed and cut to adjust the screwing depth of the cap into two levels, one for storage and one for opening.

〔Effect of the invention〕

With the present invention, the tube can be opened by simply screwing it in, and the entire amount of semi-fluid drugs in the form of highly viscous creams, pastes, and ointments can be injected into the pores of animals that are resistant to injection. can do.

〔Example〕

Figure 1 shows how to prevent and treat mastitis in cows.
FIG. 2 is a cross-sectional view of a tube container with a nozzle containing a cream-like antibiotic for direct injection into the udder of a cow. 1 is the tube body, 2 is the filling port, and 3 is the outlet. The outlet 3 is thinner than the tube body and is joined to the tube body via a shoulder 4 which is reinforced and does not easily deform under the force of fingers. The inside of the outlet 3 is a narrow diameter part 31, which is shorter than the sealing piece 6 and is connected to a wide diameter part 33 via a step 32. Exit 3
A male screw 5 is provided on the outer periphery, and a sealing portion 6 made of aluminum foil is provided at the tip. Therefore, the drug contents are stored in a completely airtight state. 7 is a cap, which has a female thread 8 on its inner periphery into which the male thread 5 is screwed;
a nozzle 11 having an injection hole 10 passing through the top 9;
to be planted. A space 12 is provided between the back surface of the top part 9 and the sealing part 6, and the base part 24 of the nozzle 11 projects into this space 12 and forms a cutting edge 13 having a shape cut diagonally within the space 12. Injection hole 10 opens into space 12 .

Reference numeral 14 denotes an annular stopper, which consists of an annular ring 15 that fits around the outer periphery of the outlet 3 and four legs 16 extending from this annular ring. 17 is a skirt for preventing liquid leakage, and 18 is a protector for preventing contamination of the nozzle. An internal ring-shaped projection 19 and an outwardly curved head 20 at the tip of the skirt 17 engage, and the nozzle tip prevent contamination. It is in this state before use, and the contents, including the nozzle, are kept sanitary until the package is opened.

FIG. 2 is an enlarged sectional view of the vicinity of the sealed portion 6 after opening. When opening the cap, screw in the cap 7 even more firmly. The stopper 14 is interposed between the shoulder portion 4 and the rigidity of the leg portion 16 so that the cutting edge 13 does not come into contact with the sealing portion 6 and is adjusted to maintain an appropriate distance. However, if the screw is screwed in even more strongly, the stopper 14 is pressed, the leg portion 16 bends in the centrifugal direction along the slope of the shoulder portion 4, and the ring 15 also descends to its limit.

3 and 4 show the shape of the cutting edge 13. FIG. In this embodiment, the nozzle base has a shape cut diagonally with one plane. The leading edge 34 and the outer circumferential line 35 have the ability to cut the sealing piece 6 into a circular shape, but there is no cutting ability near the opposite side 36 of the leading edge 34, but the remaining uncut portion 22 is cut into the inner wall of the container. It has the power to bend when faced. Similarly, the fourth
Even if the nozzle base is cut into a curved shape as shown in the figure, the object of the present invention can be achieved. As the cap 7 descends, the leading edge 34 of the cutting edge 13 comes into contact with the sealing part 6, and then rotates and is gradually pressed harder. Even after the leading edge 34 is inserted into the cutting edge 13, the outer circumferential line 35 still acts as a cutting edge and cuts in an annular shape.

FIG. 5 and FIG. 7 are explanatory diagrams showing the operation of the present invention. FIG. 5 shows the present invention, and since the inner surface of the container has a sealing part 6, a narrow diameter part 31, a step 32, and a wide diameter part 33, when a strong extrusion pressure A is applied, a component force a acts as a force that presses the sealing piece 21 further against the wall surface. As shown in FIG. 6, the cut sealing piece 21 is warped due to the characteristics of the aluminum foil, and is pressed in a curved state to the outlet inner surface of the remaining portion 22 left uncut by the base of the nozzle 11. In this state, if the protector 18 is removed and the tip of the nozzle is inserted into the cow's udder, the entire content can be inserted at once, even if the content is quite viscous, and the sealing piece 21 acts as a valve to close the nozzle. There is no risk of blocking the base of the 23 is a ring-shaped protrusion for preventing liquid leakage.

In the case of FIG. 7, since there is no step 32,
There is no narrow diameter part or wide diameter part, and when a strong extrusion pressure A is applied, component force a may enter the wall surface from the tip of the sealing piece 21 and separate the sealing piece 21 from the wall surface, creating a valve-like discharge resistance. There is.

FIG. 6 is a perspective view of the vicinity of the outlet seen from the inner surface of the tube, with the base protruding from the back surface of the top portion omitted to show the state in which the cut sealing piece is pressed against the inner surface of the outlet.

In this embodiment, the stopper 14 is formed by integrally molding four legs 16 and a ring 15 using a plastic material. However, during manufacturing, when the cap 7 is screwed in, the cutting edge 13 contacts the cap at the appropriate position and is hard enough to sense screwing resistance, and when screwed in further with the intention of opening the cap, the cutting edge 13 comes into contact with the cap at the appropriate position. It may be made of any material as long as it has a shape and structure that allows threading to proceed.

[Brief explanation of drawings]

Figure 1 is a sectional view of the present invention before use;
The figure is an enlarged sectional view of the vicinity of the sealed part showing the state after opening, Figures 3 and 4 are perspective views showing the shape of the cutting edge, Figure 5 is an explanatory view showing the effect of the present invention, and Figure 6 is a cutaway. The base protruding from the back side, which shows the state in which the sealed sealing piece is pressed against the inner surface of the outlet, is omitted,
FIG. 7, which is a perspective view of the vicinity of the outlet seen from the inner surface of the tube, is an explanatory view showing the effect when the structure of the present invention is not provided. In the drawings, 1 is the tube body, 3 is the outlet,
4 is the shoulder, 5 is the male thread, 8 is the female thread, 8 is the sealing part, 7 is the cap, 9 is the top, 10 is the injection hole, 1
1 is a nozzle, 12 is a space, 13 is a cutting edge, 14 is a stopper, 15 is an annular ring, 16 is a leg, 18 is a protector, 21 is a sealing piece, 22 is a remainder, 24 is a base, 3
1 is a narrow diameter part, 32 is a step, 33 is a wide diameter part, 34 is a leading edge, 35 is an outer circumferential line, and 36 is the vicinity of the opposite side of the leading edge 34.

Claims (1)

[Scope of Claims] 1. A medicine-containing nozzle formed by screwing together a cap with a nozzle, which has a screw on the inner periphery that is screwed into the outer periphery of the outlet of the container, and has a nozzle protruding from the top and having an injection hole passing through the top. A tube container with a tube, in which, before opening, a space is provided between the smooth sealed portion of the outlet of the tube container and the back surface of the top of the cap, and the base of the nozzle protrudes all around the circumference within the space. , the tip of the base cuts out the sealing part in a substantially circular shape, leaving a part, and forms a cutting edge cut diagonally so that the part can be pressed against the inner wall of the container, and the cutting edge cuts out the sealing part in a substantially circular shape, and the cutting edge forms a cutting edge that is cut diagonally so that the part can be pressed against the inner wall of the container. The narrow-diameter part that is close to and not in contact with the sealing part on the inner surface of the container transitions to the wide-diameter part via a step at a distance shorter than the length of the sealing piece that was cut out, leaving only a part. A tube container with a nozzle containing an animal drug, characterized by: 2. A drug-containing tube container with a nozzle, which is formed by screwing together a cap with a nozzle, which has a screw on the inner periphery that engages with the outer periphery of the outlet of the container, and projects a nozzle having an injection hole passing through the top. In the state before opening, a space is provided between the smooth sealed part of the outlet of the tube container and the back surface of the top of the cap, and the base of the nozzle protrudes all around the circumference within the space, and the tip of the base is The sealing part is cut out in a substantially circular shape, leaving a part, and a cutting edge is cut diagonally so that the part can be pressed against the inner wall of the container, and the cutting edge is close to the sealing part, and The narrow diameter part that is not in contact with the sealing part on the inner surface of the container transitions to the wide diameter part via a step at a distance shorter than the length of the sealing piece that was cut off, leaving only a part, while the tube container The cap is screwed onto the outlet of the tube container via an annular stopper on the outer periphery of the outlet of the tube container, which prevents the cutting edge from being screwed together so deeply as to come into contact with the sealing part in the screwed state before use. A tube container with a nozzle containing a veterinary drug, characterized in that the stopper is deformed when screwed together more deeply, and is capable of allowing screwing deep enough to open the sealing part.