Double-color injection-molded heparin cap

Abstract

The utility model relates to a double-color injection-molded heparin cap, which aims to solve the technical problems that the existing double-color injection-molded heparin cap is easy to cause oxidative damage of medicaments due to air in the heparin cap, and the medicaments in the heparin cap are invalid due to air entering and cannot be timely found by medical staff, and comprises a cap body, one end of the cap body is in threaded connection with a cap cover, a pipeline connecting column is integrally formed in the middle of the cap cover, one side of the pipeline connecting column is connected with a first hollow rubber ball through a connecting pipe, and the outer portion of the pipeline connecting column is connected with a sealing cover through a sealing ring. The heparin cap is simple in structure and convenient to use, the phenomenon that a medicament in the heparin cap is oxidized and damaged due to air is avoided, the protection effect of the heparin cap on the medicament during storage is improved, therefore, the vacuum condition in the heparin cap is detected, and the phenomenon that medical staff cannot find the medicament in the heparin cap in time due to the fact that the medicament in the heparin cap loses efficacy due to entering the air is avoided.

Description

Technical Field

[0001] The utility model relates to the field of heparin caps, in particular to a heparin cap formed by double-color injection molding. Background Art

[0002] At present, it is increasingly common to use intravenous catheters for clinical intravenous infusion in the medical field. The dosing device for intravenous indwelling adopts the form of heparin caps, and the manufacturing process of heparin caps is heat sealing or welding, which are not aesthetically pleasing and have a high risk of safe infusion.

[0003] According to the published patent 202022258135.1, a two-color injection molded heparin cap includes a thermoplastic elastomer plug and a heparin cap base, one end of the inner wall of the heparin cap base is inlaid with a thermoplastic elastomer plug, one end of the inner wall of the heparin cap base is provided with a groove, the groove is used as a positioning mechanism for the thermoplastic elastomer plug, an injection area is provided in the middle of the thermoplastic elastomer plug, and a Luer connector is fixedly connected to the bottom of the heparin cap base. In the process of realizing the utility model, the inventor found that at least the following problems in the prior art have not been solved. Hold the base of the heparin cap with your hand, insert the injection needle filled with liquid medicine vertically into the puncture area of ​​the TPE elastomer plug, prevent the needle tip from touching the inner wall of the heparin cap, inject the liquid medicine into the heparin cap, and slowly withdraw the injection needle after the injection. This solves the problem of unstable drug quality. During use, the traditional two-color injection-molded heparin cap cannot vacuum seal the cap, and the medicine in the heparin cap is easily damaged by oxidation due to air. In addition, the vacuum condition in the heparin cap cannot be detected in real time. The medicine in the heparin cap is ineffective due to the entry of air, which can easily lead to the phenomenon that medical staff cannot discover it in time. For this reason, a new technical solution needs to be designed to solve it. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet practical needs, and provide a two-color injection molded heparin cap to solve the technical problems that the presence of air in the current two-color injection molded heparin cap easily leads to oxidation damage of the medicine and the medicine in the heparin cap becomes ineffective due to the entry of air, which easily leads to the medical staff failing to find it in time.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: designing a two-color injection-molded heparin cap, including a cap body, one end of the cap body is threadedly connected to a cap cover, a pipeline connecting column is integrally formed in the middle of the cap cover, one side of the pipeline connecting column is connected to a first hollow rubber ball through a connecting pipe, the outside of the pipeline connecting column is connected to a sealing cover through a sealing ring, and the other end of the sealing cover is connected to a second hollow rubber ball through a control valve.

[0006] Preferably, one end of the connecting tube is sealingly connected to one side of the pipeline connecting column and communicates with the interior thereof, and the other end of the connecting tube is sealingly connected to one end of the first hollow rubber ball and communicates with the interior thereof.

[0007] Preferably, the sealing ring is fitted on the inner wall of the sealing cover and is fixedly connected to the inner wall.

[0008] Preferably, one end of the control valve is sealed connected to the other end of the sealing cover and communicates with the interior thereof, and the other end of the control valve is sealed connected to one end of the second hollow rubber ball and communicates with the interior thereof.

[0009] Preferably, the volume of the second hollow rubber ball is three times the volume of the first hollow rubber ball.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model combines a pipeline connecting column, a connecting pipe, a first hollow rubber ball, a sealing ring, a sealing cover, a control valve and a second hollow rubber ball. When the heparin cap stores medicine, the medicine is first injected into the cap body, the control valve is opened, and the second hollow rubber ball is in an extruded state. The sealing cover is then sleeved on the pipeline connecting column through the sealing ring, and the second hollow rubber ball is loosened. At this time, the second hollow rubber ball will extract the air in the cap body, and then the control valve can be closed, so as to achieve vacuum sealing of the cap, avoid the phenomenon that the medicine in the heparin cap is damaged by oxidation due to air, and improve the protective effect of the heparin cap when storing medicine.

[0012] When the air in the heparin cap is extracted, the air in the first hollow rubber ball will enter the interior of the pipe connecting column through the connecting pipe, and then enter the second hollow rubber ball, so that the first hollow rubber ball is in a deflated state. When medical staff use the heparin cap and find that the first hollow rubber ball returns to its original state, it means that air has entered the heparin cap, thereby realizing real-time detection of the vacuum condition in the heparin cap and avoiding the phenomenon that the medicine in the heparin cap becomes ineffective due to the entry of air and the medical staff cannot find it in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of a pipeline connection column of the utility model;

[0015] Figure 3 It is a schematic diagram of the sealing ring of the utility model;

[0016] In the figure: 1, cap body; 11, cap cover; 12, pipeline connecting column; 13, connecting pipe; 14, first hollow rubber ball; 15, sealing ring; 16, sealing cover; 17, control valve; 18, second hollow rubber ball. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0018] Example 1: A two-color injection molded heparin cap, see Figures 1 to 3 , comprising a cap body 1, one end of the cap body 1 is threadedly connected to a cap cover 11, a pipe connecting column 12 is integrally formed in the middle of the cap cover 11, one side of the pipe connecting column 12 is connected to a first hollow rubber ball 14 through a connecting pipe 13, one end of the connecting pipe 13 is sealed and connected to one side of the pipe connecting column 12 and communicates with the interior thereof, the other end of the connecting pipe 13 is sealed and connected to one end of the first hollow rubber ball 14 and communicates with the interior thereof, when the air in the heparin cap is extracted, the air in the first hollow rubber ball 14 will enter the interior of the pipe connecting column 12 through the connecting pipe 13, and then enter the second hollow rubber ball 18, so that the first hollow rubber ball 14 is in a deflated state, when the medical staff finds that the first hollow rubber ball 14 returns to the raw material state when using the heparin cap, it means that air has entered the heparin cap, thereby realizing real-time detection of the vacuum condition in the heparin cap, avoiding the phenomenon that the medical staff cannot find out in time that the medicine in the heparin cap is ineffective due to the entry of air;

[0019] The outside of the pipeline connecting column 12 is connected to a sealing cover 16 through a sealing ring 15. The sealing ring 15 is attached to the inner wall of the sealing cover 16 and is fixedly connected to the inner wall. The other end of the sealing cover 16 is connected to a second hollow rubber ball 18 through a control valve 17. One end of the control valve 17 is sealed and connected to the other end of the sealing cover 16 and communicates with the inside. The other end of the control valve 17 is sealed and connected to one end of the second hollow rubber ball 18 and communicates with the inside. When the heparin cap stores the medicine When the medicine is first injected into the cap body 1, the control valve 17 is opened, and the second hollow rubber ball 18 is in a squeezed state, and then the sealing cover 16 is put on the pipeline connecting column 12 through the sealing ring 15, and then the second hollow rubber ball 18 is loosened. At this time, the second hollow rubber ball 18 will extract the air in the cap body 1, and then the control valve 17 can be closed, so as to achieve vacuum sealing of the cap 11, avoid the phenomenon that the medicine in the heparin cap is damaged by oxidation due to air, and improve the protective effect of the heparin cap when storing the medicine.

[0020] For details, see Figure 1The volume of the second hollow rubber ball 18 is three times the volume of the first hollow rubber ball 14, thereby preventing the gas in the heparin cap and the first hollow rubber ball 14 from being completely extracted.

[0021] In addition, the components designed in the present invention are all universal standard parts or components known to technical personnel in the field. Their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. They can be fully implemented by technical personnel in the field, and there is no need to elaborate. The content protected by the present invention does not involve improvements to internal structures and methods.

[0022] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A two-color injection molded heparin cap, comprising a cap body (1), one end of the cap body (1) being threadedly connected to a cap cover (11), characterized in that: A pipe connection column (12) is integrally formed in the middle of the cap (11); one side of the pipe connection column (12) is connected to a first hollow rubber ball (14) via a connecting pipe (13); the outside of the pipe connection column (12) is connected to a sealing cover (16) via a sealing ring (15); and the other end of the sealing cover (16) is connected to a second hollow rubber ball (18) via a control valve (17).

2. A two-color injection molded heparin cap as claimed in claim 1, characterized in that: One end of the connecting pipe (13) is sealedly connected to one side of the pipeline connecting column (12) and communicates with the interior thereof, and the other end of the connecting pipe (13) is sealedly connected to one end of the first hollow rubber ball (14) and communicates with the interior thereof.

3. A two-color injection molded heparin cap as claimed in claim 1, characterized in that: The sealing ring (15) is fitted on the inner wall of the sealing cover (16) and is fixedly connected to the inner wall.

4. A two-color injection molded heparin cap as claimed in claim 1, characterized in that: One end of the control valve (17) is sealedly connected to the other end of the sealing cover (16) and communicates with the interior thereof, and the other end of the control valve (17) is sealedly connected to one end of the second hollow rubber ball (18) and communicates with the interior thereof.

5. The double-color injection molded heparin cap according to claim 1, characterized in that: The volume of the second hollow rubber ball (18) is three times the volume of the first hollow rubber ball (14).

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