Filter membrane capable of efficiently filtering
By using a dual-layer filter membrane structure and combining filter membranes with different pore sizes, the problem of low filtration efficiency and easy clogging of existing infusion set filter membranes is solved, achieving high-efficiency filtration and extended service life.
Patent Information
- Application Number
- CN202422637086.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing infusion set filter membranes have a single-layer structure, resulting in low filtration efficiency and easy clogging.
The device employs a double-layer filter membrane structure. The support frame has a partition in the middle and placement slots on both sides. The first filter membrane and the second filter membrane are placed in the placement slots respectively. The first filter membrane is made of polypropylene fiber mesh with a pore size of 5μm, and the second filter membrane is made of polyethersulfone with a pore size of 0.22μm. The support frame is made of polypropylene to increase mechanical strength.
Multi-layer filtration is achieved, which improves filtration efficiency and extends the service life of the filtration system. The first filter membrane filters out large particles and protects the second filter membrane from being quickly clogged.
Smart Images

Figure CN223570218U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter membrane technology, specifically to a high-efficiency filtration filter membrane. Background Technology
[0002] The filter membrane of an infusion set is an important component of the infusion set. Its main function is to filter out impurities such as particles and bacteria that may be present during the infusion process, so as to ensure the safety and effectiveness of the infusion.
[0003] Most existing infusion set filter membranes are single-layer structures, which not only have low filtration efficiency but are also prone to clogging. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the shortcomings of the existing technology, this utility model provides a filter membrane with high efficiency filtration.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency filtration membrane, comprising a support frame, a partition plate in the middle part of the support frame, a plurality of through holes on the partition plate, and two placement slots symmetrically arranged on both sides of the partition plate, wherein a first filter membrane and a second filter membrane are respectively placed inside the two placement slots.
[0008] Furthermore, the improvements of this utility model include that the support frame is made of polypropylene, the first filter membrane is made of polypropylene fiber mesh, and the second filter membrane is made of polyethersulfone.
[0009] Furthermore, the present invention is improved in that the pore size of the first filter membrane is 5 μm and the pore size of the second filter membrane is 0.22 μm.
[0010] Furthermore, an improvement of this utility model is that both the first filter membrane and the second filter membrane are adhered to the inside of the placement groove.
[0011] Furthermore, an improvement of this invention is that the thickness of the first filter membrane and the second filter membrane is 30 to 100 μm.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, the present invention provides a high-efficiency filtration membrane with the following advantages:
[0014] This high-efficiency filter membrane, through its first and second filter membranes, provides a multi-layer filtration effect for the liquid in the infusion set. Multi-layer filtration is usually made of filter materials with different particle sizes or pore sizes stacked together. Each layer can capture particles of different sizes, thus effectively removing impurities of various sizes and achieving higher filtration efficiency. Furthermore, the first filter membrane can filter out large particles first, protecting the fine second filter membrane below from rapid clogging, thereby extending the service life of the entire filtration system. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This utility model Figure 1 The main view;
[0017] In the diagram: 1. Support frame; 2. Partition plate; 3. Placement slot; 4. First filter membrane; 5. Second filter membrane. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-2 The present invention provides a high-efficiency filtration membrane, including a support frame 1, a partition 2 in the middle part of the support frame 1, a plurality of through holes in the partition 2, and two placement grooves 3 symmetrically arranged on both sides of the partition 2, wherein a first filter membrane 4 and a second filter membrane 5 are respectively placed inside the two placement grooves 3.
[0020] The support frame 1 provides support for the first filter membrane 4 and the second filter membrane 5. The first filter membrane 4 and the second filter membrane 5 provide a multi-layer filtration effect for the liquid in the infusion set. Multi-layer filtration is usually made of filter materials with different particle sizes or pore sizes stacked together. Each layer can capture particles of different sizes, which can effectively remove impurities of various sizes and achieve higher filtration efficiency. In addition, the first filter membrane 4 can filter out large particles first, protecting the lower, fine second filter membrane 5 from being quickly blocked, thus extending the service life of the entire filtration system.
[0021] Furthermore, the support frame 1 is made of polypropylene, the first filter membrane 4 is made of polypropylene fiber mesh, and the second filter membrane 5 is made of polyethersulfone. Using polypropylene (PP) as the support layer can increase mechanical strength and ensure that the filter membrane is not easily damaged. The first filter membrane 4 is made of coarser polypropylene fiber mesh, which can filter out larger particles and protect the main filter membrane from clogging. The second filter membrane 5 is a polyethersulfone (PES) membrane, which can effectively filter bacteria and smaller particles.
[0022] Furthermore, the pore size of the first filter membrane 4 is 5 μm, and the pore size of the second filter membrane 5 is 0.22 μm.
[0023] Furthermore, both the first filter membrane 4 and the second filter membrane 5 are adhered to the inside of the placement groove 3.
[0024] Furthermore, the thickness of the first filter membrane 4 and the second filter membrane 5 is 30 to 100 μm.
[0025] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A high-efficiency filtration membrane, comprising a support frame (1), characterized in that: The middle part of the support frame (1) is provided with a partition (2), the partition (2) is provided with multiple through holes, and two placement slots (3) are symmetrically arranged on both sides of the partition (2). The first filter membrane (4) and the second filter membrane (5) are respectively arranged inside the two placement slots (3).
2. The high-efficiency filtration membrane according to claim 1, characterized in that: The support frame (1) is made of polypropylene, the first filter membrane (4) is made of polypropylene fiber mesh, and the second filter membrane (5) is made of polyethersulfone.
3. The high-efficiency filtration membrane according to claim 2, characterized in that: The first filter membrane (4) has a pore size of 5 μm, and the second filter membrane (5) has a pore size of 0.22 μm.
4. The high-efficiency filtration membrane according to claim 3, characterized in that: Both the first filter membrane (4) and the second filter membrane (5) are adhered to the inside of the placement groove (3).
5. The high-efficiency filtration membrane according to claim 4, characterized in that: The thickness of the first filter membrane (4) and the second filter membrane (5) is 30 to 100 μm.