Integrated sealing cap and hemoperfusion device

Abstract

The utility model discloses an integrated sealing cap and a hemoperfusion device, which comprise a cap cover with an opening on the bottom side; the connecting screw sleeve is connected to the inner top side of the cap; the sealing nozzle is connected to the inner top side of the cap and located in the connecting threaded sleeve, the cap, the connecting threaded sleeve and the sealing nozzle are of an integrally-formed structure, sealing connection can be rapidly and stably achieved, the cap, the connecting threaded sleeve and the sealing nozzle are integrally formed, production is convenient, the production cost can be reduced, and the overall practicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of packaging structures, in particular to integrated sealing cap and blood perfusion device. BACKGROUND

[0002] In the blood purification mode in medical industry, there are hemodialysis, blood perfusion and hemofiltration commonly used. Blood purification product belongs to sterile product, so sealing cap is indispensable for blood purification product, which plays a sealing protection role, can prevent external air from entering the product, and reduce the risk of blood infection. Some sealing caps have only cap structure at present, and the sealing effect is poor. Some sealing caps include cap and have silica gel plug inside, but during production, silica gel plug needs to be pre-installed in cap by manual or automatic equipment, which increases production cost and time, resulting in high use cost of this type of sealing cap. Therefore, there is an urgent need for a sealing cap that can better balance sealing and production cost. SUMMARY

[0003] The utility model aims to provide integrated sealing cap and blood perfusion device to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0004] The utility model solves the technical problem of the solution:

[0005] Integrated sealing cap, comprising: cap, bottom side is provided with opening;Connecting screw sleeve, connected to the inner top side of the cap;Sealing nozzle, connected to the inner top side of the cap, and located in the connecting screw sleeve, the cap, the connecting screw sleeve and the sealing nozzle are integrally formed structure.

[0006] The technical scheme at least has the beneficial effects as follows: the cap bottom side is provided with opening, which is used to connect downward to the product connection structure needing sealing, when connecting, the product connection structure is threadedly connected with the connecting screw sleeve, and in the process of threadedly connecting, the sealing nozzle of the inner top side of the cap can be pressed on the product connection structure, so as to strengthen the sealing of the product connection structure. In this way, sealing connection can be quickly and stably realized, and the cap, the connecting screw sleeve and the sealing nozzle are integrally formed, which is convenient for production, helps to reduce production cost and improve overall practicability.

[0007] As a further improvement of the above technical scheme, the first annular gap is formed between the outer side of the connecting screw sleeve and the inner side of the cap, and the outer side of the connecting screw sleeve is formed with external thread. The first annular gap is formed between the outer side of the connecting sleeve and the inner side of the cap for limiting and connecting the external connection structure. When connected to the product connection structure needing sealing, the connection structure of the product is inserted into the first annular gap for connection. In this way, the stability and tightness of the connection can be strengthened.

[0008] As a further improvement of the above technical solution, a second annular gap is formed between the outer side of the sealing nozzle and the inner side of the connecting screw sleeve. The second annular gap is formed between the outer side of the sealing nozzle and the inner side of the connecting screw sleeve for connecting and sealing the external connecting structure. When connected to the product connecting structure that needs to be sealed, the part of the product connecting structure that needs to be sealed is sleeved to the outer side of the sealing nozzle, and the opening part that needs to be sealed is positioned and pressed tightly by the sealing nozzle, thereby realizing stable sealing of the connecting sleeve.

[0009] As a further improvement of the above technical solution, the outer diameter of the sealing nozzle gradually decreases downward. The sealing nozzle is formed with an outer side wall that gradually narrows downward, so that the sealing nozzle has a structure of being larger at the top and smaller at the bottom. At this time, the sealing nozzle is more easily inserted into the opening of the product connecting structure, and the opening part of the product connecting structure is pressed and sealed by the inclined outer side wall, taking into account the convenience and sealing performance during use.

[0010] As a further improvement of the above technical solution, an opening is arranged at the bottom side of the sealing nozzle, and the opening extends along the axial direction of the sealing nozzle. The opening in the sealing nozzle forms a certain elastic deformation space inside. When the sealing nozzle is pressed against the opening of the product connecting structure, a certain elastic deformation of the sealing nozzle in the central direction can be caused by gradually increasing the pressure of the threaded connection, so as to ensure that the sealing nozzle contacts the product at the opening position of the product connecting structure, thereby achieving the sealing effect.

[0011] As a further improvement of the above technical solution, the inner diameter of the connecting screw sleeve gradually increases downward. The inner side wall of the connecting screw sleeve with an inner diameter that gradually increases downward forms a tapered inner side wall, which can increase the contact area between the product connecting structure and the connecting screw sleeve, so that the inner side of the connecting screw sleeve can also provide positioning for the product connecting structure, thereby improving the tightness of the overall connecting structure.

[0012] As a further improvement of the above technical solution, a force applying plane is arranged at the top outer side of the cap, and a plurality of force applying planes are arranged around the center of the cap. When the cap needs to be rotated, force can be applied to the force applying plane. The flat outer side wall of the top of the cap can facilitate force application, reduce the phenomenon of slipping when force is applied to the cap, and improve the convenience of rotating the cap.

[0013] As a further improvement of the above technical solution, a reinforcing conical surface is arranged at the bottom outer side of the cap, and the outer diameter of the reinforcing conical surface gradually increases downward. The reinforcing conical surface can increase the contact area between the bottom of the cap and the product, thereby improving the sealing effect between the bottom end of the cap and the product, and further enhancing the structural stability of the bottom of the cap.

[0014] As a further improvement of the above technical solution, the cap, the connecting screw sleeve and the sealing nozzle are all made of plastic material. The cap, the connecting screw sleeve and the sealing nozzle made of plastic material can be integrally formed by injection molding, which is convenient for production and low in material cost, thereby effectively reducing the use cost.

[0015] The blood perfusion device comprises a perfusion device body, the integrated sealing cap, an inner connecting sleeve and an outer connecting sleeve coaxially arranged on the perfusion device body, the outer connecting sleeve is threadedly connected with the connecting screw sleeve, and the sealing nozzle is sealed at the top end of the inner connecting sleeve.

[0016] The technical solution has at least the following beneficial effects: when the perfusion device body needs to be sealed, the outer connecting sleeve on the perfusion device body is threadedly connected with the connecting screw sleeve to provide the main connecting force, the inner connecting sleeve on the perfusion device body is inserted into the connecting screw sleeve, and the top end thereof is sealed by the sealing nozzle, so that the sealing connection can be quickly and stably realized, the cap, the connecting screw sleeve and the sealing nozzle are integrally formed, production is convenient, production cost is reduced, and the overall practicability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly described. Obviously, the described drawings are only some of the embodiments of the present application, not all the embodiments, and those skilled in the art can obtain other design schemes and drawings according to these drawings without creative labor.

[0018] Figure 1 is a perspective view of the integrated sealing cap of the present application.

[0019] Figure 2 is an axial cross-sectional structure schematic view of the integrated sealing cap of the present application.

[0020] Figure 3 is a connection structure schematic view of the integrated sealing cap and the perfusion device body of the present application.

[0021] In the drawings: 100-cap, 110-first annular gap, 120-second annular gap, 130-force applying plane, 140-reinforcing conical surface, 200-connecting screw sleeve, 210-outer thread, 300-sealing nozzle, 310-opening, 410-inner connecting sleeve, 420-outer connecting sleeve. DETAILED DESCRIPTION

[0022] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation to the present application.

[0023] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation to the present application.

[0024] In the description of the present application, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0025] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application according to the specific content of the technical scheme.

[0026] Referring to Figure 1 With Figure 2 The integrated sealing cap comprises a cap cover 100, a connecting screw sleeve 200 and a sealing nozzle 300, wherein the bottom side of the cap cover 100 is provided with an opening; the connecting screw sleeve 200 is connected to the inner top side of the cap cover 100, and the connecting screw sleeve 200 also extends in the up-down direction; the sealing nozzle 300 is connected to the inner top side of the cap cover 100, and the sealing nozzle 300 is located in the connecting screw sleeve 200, and the cap cover 100, the connecting screw sleeve 200 and the sealing nozzle 300 are integrally formed.

[0027] As known from the above, the bottom side of the cap cover 100 is provided with an opening, which is used to be connected downward to the product connection structure which needs to be sealed. When connected, the product connection structure is threadedly connected with the connecting screw sleeve 200, and in the process of threadedly connecting, the sealing nozzle 300 at the inner top side of the cap cover 100 can be pressed against the product connection structure, so as to strengthen the sealing of the product connection structure. In this way, the sealing connection can be quickly and stably realized, and the cap cover 100, the connecting screw sleeve 200 and the sealing nozzle 300 are integrally formed, which is convenient for production, is conducive to reducing the production cost and improving the overall practicability.

[0028] In the above embodiment, the connecting sleeve 200 can be an internal thread structure, and the connecting sleeve 200 is closer to the inner side of the cap 100 or directly abuts the inner side of the cap 100. In order to make the structure of the cap 100 connected to the product more compact, a first annular gap 110 is formed between the outer side of the connecting sleeve 200 and the inner side of the cap 100, and an external thread 210 is formed on the outer side of the connecting sleeve 200. The first annular gap 110 between the outer side of the connecting sleeve and the inner side of the cap 100 is used to limit and connect the external device connection structure. When connected to the product connection structure that needs to be sealed, the product connection structure is inserted into the first annular gap 110 for connection, which can enhance the stability and tightness of the connection.

[0029] The sealing nozzle 300 can directly abut the position of the opening 310 of the product that needs to be sealed, and the opening 310 is tightly sealed. In order to further improve the sealing effect of the opening 310, the sealing nozzle 300 can be inserted into the opening 310 of the product that needs to be sealed for sealing. Therefore, in the present embodiment, a second annular gap 120 is formed between the outer side of the sealing nozzle 300 and the inner side of the connecting sleeve 200. The second annular gap 120 between the outer side of the sealing nozzle 300 and the inner side of the connecting sleeve 200 is used to connect and seal the external device connection structure. When connected to the product connection structure that needs to be sealed, the part of the product connection structure that needs to be sealed is sleeved on the outer side of the sealing nozzle 300, and the opening part that needs to be sealed is tightly positioned by the sealing nozzle 300, thereby realizing stable sealing of the connecting sleeve.

[0030] In order to improve the convenience of inserting the sealing nozzle 300 downward into the product opening 310, in the present embodiment, the outer diameter of the sealing nozzle 300 gradually decreases downward. The sealing nozzle 300 is formed with a downwardly narrowing outer side wall, so that the sealing nozzle 300 has a structure of large at the top and small at the bottom. At this time, the sealing nozzle 300 is more easily inserted into the opening of the product connection structure, and the opening part of the product connection structure is tightly sealed by the inclined outer side wall, which takes into account the convenience and sealing performance during use.

[0031] When the sealing nozzle 300 is inserted into the product opening 310 and gradually pressurized, the outer side wall of the sealing nozzle 300 and the outer edge position of the product opening 310 are elastically deformed with the gradual pressurization. In order to improve the elastic deformation amount of the sealing nozzle 300, in the present embodiment, an opening 310 is provided on the bottom side of the sealing nozzle 300, and the opening 310 extends along the axial direction of the sealing nozzle 300. The opening 310 in the sealing nozzle 300 forms a certain elastic deformation space inside. When the sealing nozzle 300 is tightly pressed against the opening of the product connection structure, the sealing nozzle 300 can be elastically deformed in the central direction with the gradual pressurization of the threaded connection, thereby ensuring that the sealing nozzle 300 contacts the product at the opening position of the product connection structure, so as to achieve the sealing effect.

[0032] When the connecting sleeve 200 is connected with the product external structure, the mutual cooperation between the two can provide axial positioning. Specifically, the inner diameter of the connecting sleeve 200 gradually increases downward. The inner side wall of the connecting sleeve 200 with the gradually increasing inner diameter forms a tapered inner side wall, which can increase the contact area between the product connecting structure and the connecting sleeve 200, so that the inner side of the connecting sleeve 200 can also provide positioning for the product connecting structure, thereby improving the tightness of the overall connecting structure.

[0033] In some embodiments, the top outer side of the cap 100 is provided with a plurality of force applying planes 130, for example, a pentagonal, hexagonal, heptagonal, octagonal, etc. When the cap 100 needs to be rotated, force can be applied to the force applying planes 130. The flat top outer side wall of the cap 100 can facilitate force application, reduce the phenomenon of slipping when force is applied to the cap 100, and improve the convenience of rotating the cap 100.

[0034] Further, the bottom outer side of the cap 100 is provided with a reinforcing tapered surface 140, and the outer diameter of the reinforcing tapered surface 140 gradually increases downward. The reinforcing tapered surface 140 can increase the contact area between the bottom of the cap 100 and the product, thereby improving the sealing effect between the bottom of the cap 100 and the product and further enhancing the structural stability of the bottom of the cap 100.

[0035] In order to reduce production and use costs, the cap 100, the connecting sleeve 200, and the sealing nozzle 300 are all made of plastic material. The plastic material cap 100, connecting sleeve 200, and sealing nozzle 300 have certain structural strength and elastic deformation ability, can be integrally formed by injection molding, are convenient to produce, have low material cost, and effectively reduce use cost.

[0036] As shown in Figure 3 A blood perfusion device includes a perfusion device body, and the above-mentioned integrated sealing cap. The perfusion device body is coaxially provided with an inner connecting sleeve 410 and an outer connecting sleeve 420. The outer connecting sleeve 420 is threadedly connected with the connecting sleeve 200, and the sealing nozzle 300 is sealed to the top end of the inner connecting sleeve 410.

[0037] In the blood perfusion device, when the perfusion device body needs to be sealed, the outer connecting sleeve 420 on the perfusion device body is threadedly connected with the connecting sleeve 200 to provide the main connecting force, and the inner connecting sleeve 410 on the perfusion device body is inserted into the connecting sleeve 200, and the top end thereof is sealed by the sealing nozzle 300. Thus, the sealing connection can be quickly and stably achieved. The cap 100, the connecting sleeve 200, and the sealing nozzle 300 are integrally formed, which is convenient for production, is conducive to reducing production cost, and improves overall practicality.

[0038] The preferred embodiments of the present application are specifically described above, but the present application is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the present application. The equivalent modifications or replacements are all included in the scope defined by the claims of the present application.

Claims

1. An integrated seal cap, characterized by: The utility model relates to a one-piece sealing cap for a perfusion device, comprising: a cap (100) having an opening on the bottom side; a connecting screw (200) connected to the inner top side of the cap (100); a sealing nozzle (300) connected to the inner top side of the cap (100) and located in the connecting screw (200), wherein the cap (100), the connecting screw (200) and the sealing nozzle (300) are integrally formed.

2. The unitary seal cap of claim 1, wherein: A first annular gap (110) is formed between the outer side of the connecting screw (200) and the inner side of the cap (100), and an external thread (210) is formed on the outer side of the connecting screw (200).

3. The unitary seal cap of claim 2, wherein: A second annular gap (120) is formed between the outer side of the sealing nozzle (300) and the inner side of the connecting screw (200).

4. The unitary seal cap of claim 3, wherein: The outer diameter of the sealing nozzle (300) gradually decreases downward.

5. The unitary seal cap of claim 4, wherein: An opening (310) is provided on the bottom side of the sealing nozzle (300), which extends along the axial direction of the sealing nozzle (300).

6. The unitized seal cap of claim 2, wherein: The inner diameter of the connecting screw (200) gradually increases downward.

7. The unitized seal cap of claim 1, wherein: A plurality of force applying planes (130) are provided on the top outer side of the cap (100) around the center of the cap (100).

8. The unitized seal cap of claim 1, wherein: A reinforcing conical surface (140) is provided on the bottom outer side of the cap (100), and the outer diameter of the reinforcing conical surface (140) gradually increases downward.

9. The unitized seal cap of claim 1, wherein: The cap (100), the connecting screw (200) and the sealing nozzle (300) are all made of plastic material.

10. A hemocatheter, characterized by: The utility model relates to a perfusion device comprising a perfusion device body, a one-piece sealing cap as claimed in any one of claims 1 to 9, an inner connecting sleeve (410) and an outer connecting sleeve (420) coaxially arranged on the perfusion device body, the outer connecting sleeve (420) is threadedly connected with the connecting screw (200), and the sealing nozzle (300) is sealed to the top end of the inner connecting sleeve (410).

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