Bottle inserting needle

Abstract

The utility model relates to the technical field of medical instruments, and discloses a bottle inserting needle which comprises a puncture needle and a base, the puncture needle comprises a needle head and a needle disc located at the tail end of the needle head, a concave cavity used for installing the needle disc is formed in the base, a filtering cavity is formed between the needle disc and the concave cavity, and a dispensing groove is formed in the needle disc and located on the outer ring of the filtering cavity. Convex ribs are arranged at the positions, corresponding to the dispensing grooves, of the surfaces of the concave cavities, are embedded into the dispensing grooves and are bonded and fixed by colloid in the dispensing grooves. According to the bottle inserting needle, the puncture needle and the base which are in special shapes are designed, the flat disc-shaped filtering cavity is formed, the gas-liquid filtering requirement is met, the convex ribs are matched with the dispensing grooves, so that the effective gluing area in a narrow space is increased, the bonding strength and the sealing performance of the filtering cavity are improved, and the practicability and the market competitiveness of the product are improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a bottle insertion needle. Background Technology

[0002] The infusion needle is an important component of medical intravenous infusion sets. Its function is to puncture the infusion bottle and maintain unobstructed flow between the medication in the bottle and the infusion tubing. To maintain pressure balance within the infusion bottle and prevent negative pressure during infusion, most infusion needles have two channels: one for infusion and the other for air intake.

[0003] To ensure the cleanliness of the air intake and infusion, filter chambers need to be added to the air intake and infusion channels. However, since the bottle insertion needle itself is very small, it is difficult to form a filter chamber in a narrow space (especially a flat space), and it is also difficult to ensure the seal. Utility Model Content

[0004] Based on the above problems, the purpose of this utility model is to provide a bottle inserter with an optimized structure that ensures structural sealing and strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A vial insertion needle includes a puncture needle and a base. The puncture needle includes a needle tip and a needle disc located at the tail end of the needle tip. The base is provided with a cavity for mounting the needle disc. A filter chamber is formed between the needle disc and the cavity. A dotted groove is provided on the needle disc and on the outer ring of the filter chamber. A raised rib is provided on the surface of the cavity corresponding to the position of the dotted groove. The raised rib is embedded in the dotted groove and is bonded and fixed by the adhesive in the dotted groove.

[0007] As an alternative, the filtration chamber includes a first half-chamber and a second half-chamber. The puncture needle is provided with a first perforation extending from the needle tip to the first half-chamber and a second perforation extending from the needle tip to the second half-chamber. The base is provided with an infusion port communicating with the first half-chamber and an air inlet communicating with the second half-chamber.

[0008] As an alternative, a Luer connector is provided on the side of the base away from the puncture needle. A silicone valve is provided between the Luer connector and the infusion port. A movable core is provided inside the Luer connector. The movable core is used to move toward the silicone valve and open the silicone valve after being subjected to pressure.

[0009] As an optional solution, a protective cover is provided on the outside of the Luer connector.

[0010] As an alternative, the surface of the needle disc and the surface of the concave cavity in the filter chamber are respectively provided with raised ridges.

[0011] As an optional solution, a needle cap is provided on the needle tip.

[0012] The beneficial effects of this utility model are:

[0013] The bottle inserter features a specially designed puncture needle and base, forming a flat, disc-shaped filter chamber that meets the requirements for gas-liquid filtration. The ribs work in conjunction with the adhesive groove to increase the effective adhesive area within the confined space, thereby improving the bonding strength and sealing of the filter chamber and enhancing the product's practicality and market competitiveness. Attached Figure Description

[0014] Figure 1 This is a structural outline drawing of the bottle inserter provided in an embodiment of the present invention;

[0015] Figure 2 This is an exploded view of the bottle inserter provided in this embodiment of the utility model;

[0016] Figure 3 This is a cross-sectional view of the bottle inserter provided in an embodiment of this utility model;

[0017] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the end face of the base according to an embodiment of the present utility model.

[0019] In the attached image:

[0020] 1. Puncture needle; 11. Needle tip; 12. Needle disc; 13. Glue dispensing groove; 14. First perforation; 15. Second perforation;

[0021] 2. Base; 21. Cavity; 22. Rib; 23. Infusion port; 24. Air inlet;

[0022] 3. Filter chamber; 31. First half-chamber; 32. Second half-chamber; 33. Protruding ridge;

[0023] 4. Luer connector;

[0024] 5. Silicone valve;

[0025] 6. Movable core;

[0026] 7. Protective cover;

[0027] 8. Needle cap. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first" and "second" are merely used to distinguish between different terms in description and do not have any special meaning.

[0033] Please see Figures 1 to 5 As shown, this embodiment provides a vial insertion needle, including a puncture needle 1 and a base 2. The puncture needle 1 includes a needle tip 11 and a needle disc 12 located at the tail end of the needle tip 11. The base 2 is provided with a cavity 21 for mounting the needle disc 12. A filter chamber 3 is formed between the needle disc 12 and the cavity 21. A dotted adhesive groove 13 is provided on the needle disc 12 and on the outer ring of the filter chamber 3. A raised rib 22 is provided on the surface of the cavity 21 corresponding to the position of the dotted adhesive groove 13. The raised rib 22 is embedded in the dotted adhesive groove 13 and is bonded and fixed by the adhesive in the dotted adhesive groove 13.

[0034] Thus, a flat, disc-shaped filter chamber 3 is formed by the specially shaped puncture needle 1 and the base 2, which meets the requirements of gas-liquid filtration. In particular, the cooperation between the convex rib 22 and the glue dispensing groove 13 increases the effective adhesive area in the narrow space, improves the bonding strength and sealing of the filter chamber 3, and enhances the reliability and stability of the bonding strength and sealing in the production process. This improves production efficiency, reduces production costs, and enhances the practicality and market competitiveness of the product while ensuring quality.

[0035] Optionally, the filter chamber 3 includes a first half-chamber 31 and a second half-chamber 32. The puncture needle 1 is provided with a first perforation 14 extending from the needle tip 11 to the first half-chamber 31 and a second perforation 15 extending from the needle tip 11 to the second half-chamber 32. The base 2 is provided with an infusion port 23 communicating with the first half-chamber 31 and an air inlet 24 communicating with the second half-chamber 32. The first half-chamber 31 and the second half-chamber 32 are rationally arranged within a small space and are independent of each other, ensuring that infusion and air intake do not interfere with each other, and guaranteeing the stability and efficiency of the infusion and air intake processes, further improving product performance and user experience.

[0036] Optionally, a Luer connector 4 is provided on the side of the base 2 away from the puncture needle 1. A silicone valve 5 is provided between the Luer connector 4 and the infusion port 23. A movable core 6 is provided inside the Luer connector 4. The movable core 6 is used to move towards the silicone valve 5 and open the silicone valve 5 after being pressed. When the infusion tube connector is connected to the Luer connector 4, the movable core 6 is pushed towards the silicone valve 5. After the silicone valve 5 is opened, the infusion port 23 is connected to the infusion line, which meets the infusion requirements.

[0037] Furthermore, a protective cover 7 is provided on the outside of the Luer connector 4 to ensure the cleanliness of the Luer connector 4 when it is not in use.

[0038] Optionally, the surface of the needle plate 12 and the surface of the concave cavity 21 in the filter chamber 3 are respectively provided with protruding ridges 33, which improve the filtration effect of the filter chamber 3.

[0039] Optionally, a needle cap 8 is provided on the needle 11 to ensure the cleanliness of the needle 11 when it is not in use.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A bottle adapter needle characterized in that, The application relates to a puncture needle (1) and a base (2), the puncture needle (1) comprising a needle head (11) and a needle disc (12) at the tail end of the needle head (11), the base (2) being provided with a concave cavity (21) for mounting the needle disc (12), a filter cavity (3) being formed between the needle disc (12) and the concave cavity (21), a glue dispensing groove (13) being arranged on the needle disc (12) and at the outer circle of the filter cavity (3), and a convex rib (22) being arranged on the surface of the concave cavity (21) and corresponding to the position of the glue dispensing groove (13), the convex rib (22) being embedded in the glue dispensing groove (13) and being fixed by glue in the glue dispensing groove (13).

2. The bottle adapter of claim 1, wherein, The filter cavity (3) comprises a first half cavity (31) and a second half cavity (32), the puncture needle (1) being provided with a first through hole (14) extending from the needle head (11) to the first half cavity (31) and a second through hole (15) extending from the needle head (11) to the second half cavity (32), and the base (2) being provided with a transfusion port (23) communicating with the first half cavity (31) and an air inlet (24) communicating with the second half cavity (32).

3. The bottle adapter of claim 2, wherein, The side of the base (2) away from the puncture needle (1) is provided with a luer joint (4), the luer joint (4) and the transfusion port (23) being provided with a silica gel valve (5), and the inside of the luer joint (4) being provided with a movable core (6) for moving to the silica gel valve (5) and opening the silica gel valve (5) after being pressed.

4. The bottle adapter of claim 3, wherein, The luer joint (4) is externally provided with a protective cover (7).

5. The bottle adapter of claim 1, wherein, The surface of the needle disc (12) and the surface of the concave cavity (21) in the filter cavity (3) are respectively provided with convex ribs (33).

6. The bottle adapter of claim 1, wherein, The needle head (11) is sleeved with a needle protection cap (8).

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