Filter cover plate structure
By designing a layered filter cover structure, a stable support is provided, which solves the problems of filtration efficiency and poor venting caused by membrane deformation, and achieves efficient filtration and safe infusion of medicine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUANMAI MEDICAL EQUIP TECH CO LTD
- Filing Date
- 2024-12-23
- Publication Date
- 2026-07-03
AI Technical Summary
Existing infusion filters suffer from insufficient support structure, leading to membrane deformation, which affects filtration efficiency and venting effect, and increases the risk of air embolism.
A filter cover structure was designed, comprising an upper cover body and a lower cover body, with first and second support members to form a layered drug storage area, and providing stable support between the upper and lower cover bodies to ensure the stability of the membrane.
It effectively avoids membrane deformation, ensures smooth drug filtration and gas emission, and improves filtration efficiency and infusion safety.
Smart Images

Figure CN224441840U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a filter cover structure. Background Technology
[0002] The main function of an infusion filter is to remove particulate matter, such as tiny drug crystals and blood clots, from the infusion process and effectively block the invasion of microorganisms, thereby reducing the risk of infection caused by infusion.
[0003] Existing infusion filters generally consist of a cover and corresponding functional membranes housed within the cover, but they have some drawbacks:
[0004] Insufficient support structure: If the membrane is not properly and reliably supported, it may deform, which in turn will affect the filtration effect of the drug solution and the reliability of the exhaust treatment.
[0005] Deformation affects filtration efficiency: Membrane deformation may cause changes in pore size, affecting filtration accuracy and allowing tiny particles or microorganisms to pass through the filter membrane, thus reducing filtration efficiency.
[0006] Poor ventilation: Deformation of the diaphragm may also affect the normal operation of the breathable membrane and vents, causing air bubbles to be unable to escape smoothly and increasing the risk of air embolism. Utility Model Content
[0007] The main technical problem solved by this utility model is to provide a filter cover structure that provides a stable and reliable support for the filter membrane and the breathable membrane, effectively preventing deformation of the filter membrane and the breathable membrane, enabling smooth and efficient filtration of the medicine, expelling gas, avoiding air embolism, and ensuring the safety of infusion.
[0008] To solve the above-mentioned technical problems, the present invention provides a filter cover structure, comprising: a lower cover body having a receiving space and an upper cover body that is connected and cooperates with the lower cover body.
[0009] The accommodating space is used to form a drug solution storage and processing area, including an upper processing area and a lower processing area. A first support member for carrying the membrane is provided in the upper processing area, and a second support member for carrying the membrane is provided inside the lower processing area.
[0010] The height of the first support member is higher than the height of the second support member, so that the drug storage and processing area forms a spatially hierarchical distribution.
[0011] In a preferred embodiment of the present invention, the upper cover body is provided with an inlet pipe for liquid to flow in, and the lower cover body is provided with an outlet pipe for liquid to flow out, and the inlet pipe and the outlet pipe are arranged parallel to each other.
[0012] In a preferred embodiment of the present invention, an automatic vent is provided on one side of the upper processing area of the lower cover body, and the center of the automatic vent coincides with the center of the first support member.
[0013] In a preferred embodiment of this utility model, both the upper cover body and the lower cover body are pear-shaped, with the smaller diameter end being the upper end and the larger diameter end being the lower end, so that the liquid-containing space gradually increases from the upper end to the lower end.
[0014] In a preferred embodiment of the present invention, the first support member is arranged in a ring shape, and the top end of the ring of the first support member is tangentially connected to the inner wall of the corresponding position on the upper end of the lower cover body.
[0015] In a preferred embodiment of the present invention, two symmetrically arranged first support ribs are provided on the outer side of the first support member along the axial direction, and the first support ribs are in close contact with the outer wall of the first support member.
[0016] In a preferred embodiment of the present invention, the second support member is arranged in a ring shape, and the two ends and the bottom end of the ring of the second support member are tangentially connected to the inner wall of the corresponding position at the lower end of the lower cover body.
[0017] In a preferred embodiment of the present invention, the inner cavity of the second support member is provided with a support platform, the support platform having symmetrically arranged second support ribs, and the support platform having an outlet that communicates with the outlet pipe.
[0018] The beneficial effects of this invention are: it can provide solid and reliable support for the filter membrane and the breathable membrane, reducing the risk of deformation of both, thereby ensuring efficient and smooth drug filtration and gas discharge, effectively intercepting impurities in the drug solution, ensuring smooth gas discharge, avoiding the formation of air embolism, and providing safety for patients receiving intravenous infusion. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0020] Figure 1 This is a schematic diagram of a preferred embodiment of the filter cover structure of this utility model;
[0021] Figure 2 This is a schematic diagram of a preferred embodiment of the filter cover structure of the present invention.
[0022] Figure 3This is a schematic diagram of a preferred embodiment of the filter cover structure of the present invention.
[0023] The components in the attached diagram are labeled as follows:
[0024] 1. Upper cover body; 2. Lower cover body; 3. Liquid inlet pipe; 4. Liquid outlet pipe; 5. Liquid inlet; 6. Liquid outlet; 7. Upper processing area; 8. Lower processing area; 9. First support component; 10. Second support component; 11. First support rib; 12. Automatic vent; 13. Support platform; 14. Second support rib. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0027] Please see Figure 1 This embodiment provides a filter cover structure suitable for drug filtration, including a lower cover body 2 with a accommodating space and an upper cover body 1 that is connected to and cooperates with the lower cover body 2.
[0028] The upper cover body 1 is provided with an inlet pipe 3 for liquid to flow in, and the lower cover body 2 is provided with an outlet pipe 4 for liquid to flow out. The inlet pipe 3 and the outlet pipe 4 are arranged parallel to each other.
[0029] like Figure 2 As shown, specifically, the first part is the upper cover body 1, which has an inlet 5 connected to the liquid inlet pipe to ensure that the medicine can flow in smoothly. The upper cover body 1 is pear-shaped and is connected to the lower cover body 2 to form a complete filter cover structure.
[0030] like Figure 3 As shown, the next part is the lower cover body, which has a spacious interior that forms a liquid medicine storage and processing area.
[0031] In detail, the lower cover body 2 is also pear-shaped, with the smaller diameter end being the upper end and the larger diameter end being the lower end. Based on this structure, the interior of the lower cover body 2 is divided into an upper processing area 7 and a lower processing area 8.
[0032] From a spatial layout perspective, the interior of the lower cover body 2 exhibits a gradual increase in size from top to bottom, which optimizes the flow path of the liquid medicine and ensures that the liquid medicine can be smoothly and evenly distributed throughout the entire treatment area, thereby enhancing the treatment efficiency and capacity adaptability of the liquid medicine.
[0033] More specifically, the upper processing area 7 is provided with a first support member 9 that carries the membrane, and the lower processing area 8 is provided with a second support member 10 that carries the membrane. The height of the first support member 9 is higher than the height of the second support member 10, so that the drug storage and processing area forms a spatially layered distribution.
[0034] The height difference between the first support member 9 and the second support member 10 is designed to better utilize the function of the corresponding membrane and adapt to different drug treatment needs.
[0035] The first support member 9 is arranged in a circular shape, and the top of the circular ring of the first support member 9 is tangentially connected to the inner wall of the corresponding position on the upper end of the lower cover body 2, which ensures the stability of the first support member 9.
[0036] The first support member 9 has two symmetrically arranged first support ribs 11 on its outer side along the axial direction. The first support ribs 11 are closely attached to the outer wall of the first support member 9, which further enhances the stability of the first support member 9.
[0037] In addition, an automatic vent 12 is provided on one side of the upper processing area 7 of the lower cover body 2. The center of the automatic vent 12 coincides with the center of the first support member 9. The gas accumulated at the upper end of the filter can be smoothly discharged through the automatic vent, ensuring the smooth operation of the filtration process.
[0038] The second support member 10 is arranged in a ring shape. The two sides and the bottom of the ring of the second support member 10 are tangentially connected to the inner wall of the corresponding position at the lower end of the lower cover body 2, forming a more stable support system.
[0039] The second support member 10 has a support platform 13 in its inner cavity. The support platform 13 has symmetrically arranged second support ribs 14 to enhance the structural strength. The support platform 13 is provided with an outlet 6 that is connected to the outlet pipe to ensure that the treated medicine can be discharged smoothly.
[0040] The robust design of the first support member 9 and the second support member 10 provides a stable and reliable support for the corresponding membrane, effectively preventing deformation and thus ensuring the reliability and efficiency of the drug filtration and exhaust treatment process.
[0041] The beneficial effects of the filter cover structure of this utility model are:
[0042] It provides a solid and reliable support for the filter membrane and the breathable membrane, effectively preventing deformation of the filter membrane and the breathable membrane, enabling smooth and efficient filtration of the drug solution, expelling gas, avoiding air embolism, and ensuring the safety of infusion.
[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A filter cover plate structure, characterized by, include: The structure includes a lower cover body with a accommodating space and an upper cover body that mates and connects with the lower cover body. The accommodating space is used to form a drug solution storage and processing area, including an upper processing area and a lower processing area. A first support member for carrying the membrane is provided in the upper processing area, and a second support member for carrying the membrane is provided inside the lower processing area. An automatic vent is provided on one side of the lower cover body near the upper processing area, and the center of the automatic vent coincides with the center of the first support member. The first support member is arranged in a ring shape, and the top of the ring of the first support member is tangentially connected to the inner wall of the corresponding position on the upper end of the lower cover body. Two symmetrically arranged first support ribs are provided on the outer side of the first support member along the axial direction, and the first support ribs are in close contact with the outer wall of the first support member. The second support member is arranged in a ring shape. The two ends and the bottom end of the ring of the second support member are tangentially connected to the inner wall of the corresponding position at the lower end of the lower cover body. The inner cavity of the second support member is provided with a support platform. The support platform has symmetrically arranged second support ribs. The support platform is provided with a liquid outlet that is connected to the liquid outlet pipe. The height of the first support member is higher than the height of the second support member, so that the drug storage and processing area forms a spatially hierarchical distribution.
2. The filter cover plate structure according to claim 1, characterized by The upper cover body is provided with an inlet pipe for liquid to flow in, and the lower cover body is provided with an outlet pipe for liquid to flow out. The inlet pipe and the outlet pipe are arranged parallel to each other.
3. The filter cover plate structure of claim 1, wherein Both the upper and lower cover bodies are pear-shaped, with the smaller diameter end being the upper end and the larger diameter end being the lower end, so that the liquid-containing space gradually increases from the upper end to the lower end.