CN104548332B - A kind of easy-tear type iodide-containing cap and its manufacture method - Google Patents

Abstract

The present invention provides a kind of easy-tear type iodide-containing cap and its manufacture method, including cap body, the side of the cap body is openend, its opposite side is bottom, water-absorbing flexible material layer is equipped with the bottom of the cap body, be equipped with the inner wall of the cap body with the matched internal thread of external short tube, separated can be connected with the composite aluminium film for closing the openend at the openend.The advantages of present invention has sealing and Disinfection Effect is good, prevent the volatilization of thimerosal from leaking, reduces production and cost of equipment maintenance, and easy to use.

Description

A kind of easily tearable iodine cap and its manufacturing method

technical field

The invention relates to a medical device, in particular to an easily tearable iodophor cap for closing a short external tube for peritoneal dialysis and a manufacturing method thereof.

Background technique

Today, peritoneal dialysis has become the preferred alternative treatment for patients with kidney disease due to its advantages of simple operation, low cost, and protection of residual renal function. However, the main cause of peritoneal dialysis failure is the incidence of peritonitis, and it was found that the incidence of peritonitis can be largely prevented by controlling the disinfection effect of the spiral port of the external short tube. At present, it is common to use a povidone iodine cap to protect the screw mouth, which plays the role of airtightness and disinfection. During the standard peritoneal dialysis operation, the patient needs to use a new iodophor cap to protect the screw port of the external short tube after each peritoneal dialysis session. Generally, patients need 3 to 5 peritoneal dialysis fluid changes per day, and also need to consume 3 to 5 povidone iodine caps per day. If the povidone iodine cap is contaminated, it is a great life threat to the patient. If the external nipple is contaminated, the nipple will also need to be replaced.

The iodophor caps produced in the early stage had built-in caps, soaked in iodine solution directly, and the finished products were directly packed in aluminum foil bags without other protective measures. Like this, when the outer packaging bag is damaged and is not found during use, a huge potential safety hazard can be caused, and the patient is in the risk of peritonitis infection. Moreover, if the outer packaging is opened too early due to human reasons, the disinfectant solution will evaporate, which will reduce the disinfection effect of the iodine solution and increase the risk of use.

Thereafter, in the design of the improved iodophor cap, most adopt to add a cap for the iodophor cap, so that the iodophor cap is in a sealed state before use. But also there are some weak points in the existing povidone iodine cap that adds a cap:

1. The matching problem between the cap and the iodophor cap, whether it is a built-in cap or an external buckle cap, if the fit is too tight, the iodophor cap and the cap will be easily cracked at the interface, and the sealing effect will not be achieved. And if the fit is not tight enough, there is a risk of leakage of iodine solution.

2. A well-fitting cap requires a fine structural design, which requires both molds and materials, resulting in increased costs for mold opening and material selection, and an increase in the cost of the cap, making it difficult to promote. As a result, treatment costs and financial burdens on patients increase.

3. Existing cap molding is generally through injection molding process, which requires the introduction of large injection molding machines, which requires high equipment maintenance costs and personnel management costs.

Contents of the invention

The object of the present invention is to provide an easy-to-tear iodophor cap that has good sealing and disinfection effects, prevents volatilization and leakage of disinfectant, reduces production and equipment maintenance costs, and is easy to use.

Another object of the present invention is to provide a method for manufacturing the above-mentioned easily tearable iodophor cap.

In order to achieve the above object, the present invention proposes a kind of easily tearable iodophor cap, comprising a cap body, one side of the cap body is an open end, and the other side is a bottom end, and the bottom end of the cap body is provided with The water-absorbing elastic material layer is provided with internal threads on the inner wall of the cap to match with the external short pipe, and a composite aluminum film closing the open end is detachably connected to the open end.

The easily tearable povidone iodine cap as described above, wherein the composite aluminum film is welded or bonded to the open end of the cap body.

The easily tearable povidone iodine cap as described above, wherein the composite aluminum film is combined along the circumference of the opening end of the cap body, and the composite aluminum film has at least one unsealing portion extending outward.

The easy-to-tear iodine cap as described above, wherein, on the inner wall of the cap body near the bottom end, there is a boss protruding inward, and the water-absorbing elastic material layer is clamped on the boss and the bottom end of the cap.

The easily tearable povidone iodine cap as described above, wherein, the boss is composed of a plurality of protruding parts uniformly arranged along the circumferential direction.

The easily tearable povidone iodine cap as described above, wherein two grooves are symmetrically opened on the outer wall of the cap body.

The easily tearable povidone iodine cap as described above, wherein the water-absorbing elastic material layer is a sponge layer.

The present invention also provides a kind of manufacture method of easy-tear type iodophor cap as above, described manufacture method comprises:

Step S10, using an injection molding machine to inject polymer granules into the easy-to-tear povidone iodine cap;

Step S20, filling the bottom end of the cap body with the water-absorbing elastic material layer that has absorbed the disinfectant through the assembly machine;

Step S30, welding or bonding the composite aluminum film on the outside of the opening end of the cap body by an assembly machine, so as to detachably close the opening end, and complete the assembly and molding of the easy-tear iodine cap.

The manufacturing method of the easy-tearable povidone iodine cap as described above, wherein the polymer particles are made of polyethylene, polypropylene, thermoplastic elastomer or ABS material.

Compared with the prior art, the present invention has the following characteristics and advantages:

1. The present invention adopts composite aluminum film welding or bonding sealing to ensure that the iodophor cap is in a sealed state before use, and there will be no cracking of the cap mouth due to over-tight fit.

2. The composite aluminum film of the present invention has good barrier performance, can effectively prevent the volatilization of disinfectant solution, and block pollution caused by iodine solution leakage and the like.

3. The structure design of the present invention is simple, which saves the time cost and expense of mold design.

4. The cost of the composite aluminum film used in the present invention is low, and the equipment maintenance cost of the required assembly machine is low, which is more convenient for management, thereby better controlling the cost of the iodophor cap and improving the utilization rate of users.

5. The composite aluminum film used in the present invention has a small area, saves materials, and is easy to find if damage occurs.

Description of drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only schematic and are used to help the understanding of the present invention, and do not specifically limit the shapes and proportional dimensions of the components in the present invention. Under the teaching of the present invention, those skilled in the art can select various possible shapes and proportional dimensions according to specific conditions to implement the present invention.

Fig. 1 is the schematic diagram of the three-dimensional structure of the easy-to-tear type iodophor cap of the present invention;

Fig. 2 is the top view of easily tearable type iodophor cap of the present invention;

Fig. 3 is the side view of A-A direction in Fig. 2;

Fig. 4 is the sectional view of A-A direction in Fig. 2;

Fig. 5 is the side view of B-B direction in Fig. 2;

Fig. 6 is the sectional view of B-B direction in Fig. 2;

Fig. 7 is the bottom view of easily tearable iodophor cap of the present invention;

Fig. 8 is a process flow chart of the manufacturing method of the easy-tearable povidone iodine cap of the present invention.

Explanation of reference signs:

1-cap body; 11-open end; 12-bottom; 13-internal thread; 14-groove; 2-water-absorbing elastic material layer;

3-composite aluminum film; 31-unsealing part; 4-boss; 41-protruding part.

Detailed ways

The details of the present invention can be understood more clearly with reference to the accompanying drawings and the description of specific embodiments of the present invention. However, the specific embodiments of the present invention described here are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modification based on the present invention, and these should be regarded as belonging to the scope of the present invention.

Please refer to Fig. 1 to Fig. 7, Fig. 1 is the three-dimensional structure schematic diagram of easy-tear type iodophor cap of the present invention; Fig. 2 is the top view of easy-tear type iodophor cap of the present invention; Fig. 3 is the side view of A-A in Fig. 2; Fig. 4 is the sectional view of A-A among Fig. 2; Fig. 5 is the side view of B-B among Fig. 2; Fig. 6 is the sectional view of B-B among Fig. 2; Fig. 7 is the bottom view of easily tearable iodophor cap of the present invention.

As shown in Figures 1 to 7, the easy-to-tear iodophor cap of the present invention includes a cap body 1, one side of the cap body 1 is an open end 11, and the other side is a bottom end 12, as shown in Figure 4 and Figure 6 A water-absorbing elastic material layer 2 is provided at the bottom end 12 of the cap body 1, and a disinfectant solution is absorbed in the water-absorbing elastic material layer 2. In this embodiment, the water-absorbing elastic material layer 2 is a sponge layer. The water-absorbing elastic material layer 2 can also be other known water-absorbing elastic materials. The inner wall of the cap body 1 is provided with an internal thread 13 matched with an external short pipe (not shown in the figure), and a composite aluminum film 3 can be welded separately at the open end 11, and the composite aluminum film 3 closes the open end , so as to play a sealing effect on the cap body 1, which can effectively prevent the volatilization of the disinfectant solution and block the pollution caused by the leakage of iodine solution. The composite aluminum film 3 welding process and the material of the composite aluminum film 3 are prior art, and will not be described in detail here. The composite aluminum film 3 is welded or bonded to the opening end 11 of the cap body 1, so that it can The sealing of the cavity is easy to tear, so that it is convenient to use. Of course, the composite aluminum film 3 and the opening end 11 can also be connected in other detachable ways, as long as the tightness of the connection is ensured and it is easy to tear. In the present invention, preferably, the composite aluminum film 3 is fusion-welded or bonded to the opening end 11 of the cap body 1 by medical glue, so as to better ensure sealing.

Further, as shown in Figure 1 and Figure 7, in order to facilitate tearing during use, the composite aluminum film 3 is combined along the circumferential direction of the opening end 11 of the cap body 1, and the composite aluminum film has at least one unsealing portion 31 extending outward . When in use, the user pulls the unsealing part 31 forcefully, lifts the composite aluminum film 3 and disengages it from the opening end 11, thereby opening the opening end 11 to engage with the external short tube.

Further, as shown in Fig. 4 and Fig. 6, on the inner wall of the cap body 1 near the bottom end 12, an inwardly protruding boss 4 is provided, and the thickness of the water-absorbing elastic material layer 2 is slightly greater than that of the boss 4 and the bottom. end 12, so that the water-absorbing elastic material layer 2 is clamped between the boss 4 and the bottom end 12 of the cap body 1, and plays the role of installing and fixing the water-absorbing elastic material layer 2. Preferably, the boss 4 is composed of a plurality of protruding parts 41 uniformly arranged along the circumferential direction, which not only saves material but also facilitates processing.

Further, as shown in FIG. 1 and FIG. 5 , the cap body 1 is in the shape of a cylinder or a truncated cone, and two grooves 14 are symmetrically opened on the outer wall of the cap body 1 for easy gripping.

As shown in Figure 8, the present invention also provides a kind of manufacturing method of easily tearable type iodophor cap as described above, and described manufacturing method comprises:

Step S10, using an injection molding machine to inject the polymer granules into an easy-to-tear povidone iodine cap;

Step S20, filling the bottom end of the cap body with the water-absorbing elastic material layer that has absorbed the disinfectant through the assembly machine;

Step S30, welding or bonding the composite aluminum film on the outside of the opening end of the cap body by an assembly machine, so as to detachably close the opening end, and complete the assembly and molding of the easy-tear iodine cap.

Among them, the polymer particles are made of polyethylene, polypropylene, thermoplastic elastomer or ABS material.

The invention seamlessly welds the iodophor cap and the composite aluminum film together by welding. When the patient uses it, after opening the outer package, tear off the composite aluminum film and use it. The present invention has the following advantages:

1. The present invention adopts composite aluminum film welding or bonding sealing to ensure that the iodophor cap is in a sealed state before use, and there will be no cracking of the cap mouth due to over-tight fit.

2. The composite aluminum film has good barrier performance, which can effectively prevent the volatilization of disinfectant solution and block the pollution caused by the leakage of iodine solution.

3. The structure design of the present invention is simple, which saves the time cost and expense of mold design.

4. The cost of the composite aluminum film is low, and the equipment maintenance cost of the required assembly machine is low, which is easier to manage, thereby better controlling the cost of the iodine cap and improving the utilization rate of users.

5. The area of the composite aluminum film is small, which saves materials, and if it is damaged, it is easy to find.

The purpose of the detailed explanations for the above-mentioned embodiments is only to explain the present invention so as to better understand the present invention. However, these descriptions cannot be construed as limiting the present invention for any reason, especially, in different The various features described in the embodiments can also be combined arbitrarily with each other to form other embodiments. Unless there is an explicit description to the contrary, these features should be understood as being applicable to any embodiment and not limited to the described embodiment. Way.

Claims (6)

1. an easy-to-tear type iodophor cap, comprising a cap body, a side of the cap body is an open end, and its other side is a bottom end, it is characterized in that, the bottom end of the cap body is provided with a water-absorbing elastic Material layer, the inner wall of the cap body is provided with an internal thread that matches the external short pipe, and a composite aluminum film that closes the open end is detachably connected to the open end; wherein the composite aluminum film Combined along the circumference of the opening end of the cap, and the composite aluminum film has at least one unsealing portion extending outward, the user pulls the unsealing portion forcefully to lift the composite aluminum film, so that the composite aluminum film disengaged from said open end; On the inner wall of the cap close to the bottom end, there is an inwardly protruding boss, and the water-absorbing elastic material layer is clamped between the boss and the bottom end of the cap; The thickness of the water-absorbing elastic material layer is slightly larger than the distance between the boss and the bottom end; wherein, the boss is composed of a plurality of protrusions uniformly arranged along the circumferential direction. 2. The easily tearable iodophor cap according to claim 1, wherein the composite aluminum film is welded or bonded to the open end of the cap body. 3. The easily tearable iodophor cap as claimed in claim 1, wherein two grooves are symmetrically provided on the outer wall of the cap body. 4. The easily tearable iodophor cap as claimed in claim 1, characterized in that, the water-absorbing elastic material layer is a sponge layer. 5. a kind of manufacture method of easily tearable type iodophor cap as described in any one in claim 1 to 4, it is characterized in that, described manufacture method comprises: Step S10, using an injection molding machine to inject polymer granules into the easy-to-tear povidone iodine cap; Step S20, filling the bottom end of the cap body with the water-absorbing elastic material layer that has absorbed the disinfectant through the assembly machine; Step S30, welding or bonding the composite aluminum film on the outside of the opening end of the cap body by an assembly machine, so as to detachably close the opening end, and complete the assembly and molding of the easy-tear iodine cap. 6. the manufacture method of easily tearable type iodophor cap as claimed in claim 5, is characterized in that, described macromolecule granular material adopts polyethylene, polypropylene, thermoplastic elastomer or ABS material.