Sterile combination set of screen liquid collection container
By designing a sterile combination kit of sieve liquid collection containers suitable for 250ml centrifuge tubes, the problem that 100-mesh sieves in the existing technology cannot be used for large-scale culture has been solved, achieving efficient cell collection and reducing waste of materials and labor time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-04-03
AI Technical Summary
The existing 100-mesh sterile cell sieve can only be placed on 50ml centrifuge tubes, which cannot meet the needs of large-scale culture of MSC cells and collection of immune cells, resulting in waste of materials and time.
Design a sterile combination kit for liquid collection containers with a sieve, including a collection container, a sieve, and a container cap. The sieve can be directly fixed to the container opening, and the container and sieve can be used separately. It is suitable for 250ml centrifuge tubes. The sieve has 100 mesh holes to reduce tube transfer operations.
This enables direct filtration and collection in large-scale cell cultures, reducing waste of materials and labor time, and lowering the risk of sample contamination.
Smart Images

Figure CN224077385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laboratory equipment, specifically a sterile combination kit of a sieve liquid collection container. Background Technology
[0002] Cell filters provide a simple and easy method for obtaining single-cell suspensions. In the prior art, CN201921279296.X describes a cell sieve, including a handle, a first sieve, a second sieve, and a third sieve. The handle is connected to the first sieve via a snap-fit. The first sieve has a first filter screen installed on it and a first retaining ring with a first groove. The end of the second sieve has a second retaining ring with a second groove, and the second sieve has a second filter screen installed on it. The bottom of the second sieve has a third retaining ring with a third groove, and the third sieve has a fourth retaining ring with a fourth groove. Compared to existing cell sieves, this invention improves the sieve's lifespan through design, offers higher economic benefits, is simple and convenient to operate, has high work efficiency, and offers various assembly methods, resulting in high overall practicality. The existing 100-mesh sterile cell sieve can only be placed on most 50ml centrifuge tubes on the market, which cannot meet the needs of large-scale culture of MSC cells and immune cells. If the existing technology is used for large-scale culture and collection, it will consume a lot of materials and time. Utility Model Content
[0003] The technical problem this invention aims to solve is that existing 100-mesh sterile cell sieves can only be placed on most 50ml centrifuge tubes currently on the market, which cannot meet the requirements for large-scale culture of MSC cells and immune cells. Using existing technology for large-scale culture and collection is costly in terms of materials and labor.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical means:
[0005] A sterile combination kit for liquid collection containers with a sieve includes a collection container, a sieve, and a container lid. The collection container has an opening at the top, a base at the bottom, and annular sidewalls on all four sides. A collection cavity is provided inside the collection container. The sieve includes a bottom and sides. The bottom is a circular sieve, and the sides are four square sieves with reinforcing ribs between them. A handle is provided at the top of the sieve, and the sieve has evenly distributed sieve holes.
[0006] This invention consists of three parts: a collection container (250ml), a sieve (100 mesh), and a container lid. The sieve is placed directly above the container opening, which has a small locking groove to secure it. The container lid is then tightened. The collection container and sieve can be used separately.
[0007] As a preferred embodiment, a further technical solution of this utility model is:
[0008] The size of the opening matches the size of the container lid. The opening has an external thread, and the container lid has an internal thread. The internal and external threads match each other.
[0009] The collection container has a capacity of 250 ml.
[0010] The screen mesh has a mesh size of 100.
[0011] A slot is provided below the opening, and the edge of the screen can be located in the slot.
[0012] The diameters of the ring formed by the four square screens and the circular screen are matched.
[0013] The sieve aperture can be set to large sieve aperture or small sieve aperture.
[0014] This invention relates to a sterile combination kit for collecting liquid using a sieve. In large-scale cell production, liquid can be directly collected through a sieve into the container for centrifugation, reducing the need for multiple 50ml centrifuge tubes and tube transfers, thus minimizing waste and saving materials and labor. The sieve can be removed to dispose of the waste liquid after cell collection and centrifugation. Attached Figure Description
[0015] Figure 1 This is the collection container of this utility model.
[0016] Figure 2 This is a front view of the sieve of this utility model.
[0017] Figure 3 This is a top view of the screen of this utility model.
[0018] Figure 4 The side view of the screen of this utility model is shown.
[0019] Explanation of reference numerals in the attached drawings: 1 - collection container; 2 - sieve; 3 - container lid; 4 - opening; 5 - base; 6 - annular side wall; 7 - collection chamber; 8 - bottom of sieve; 9 - side of sieve; 10 - circular sieve; 11 - square sieve; 12 - reinforcing rib; 13 - handle; 14 - sieve hole. Detailed Implementation
[0020] The present invention will be further described below with reference to the embodiments.
[0021] See Figure 1As can be seen, this utility model provides a sterile combination set of a sieve liquid collection container 1, which addresses the issue that the opening diameter of a 250ml centrifuge tube on the market cannot accommodate a 100m sieve 2. This invention provides a 250ml centrifuge tube capacity while also having an opening diameter suitable for accommodating the currently available 100m sieve 2. It solves the problem of not being able to accommodate the sieve 2 when reusing 50ml or 250ml centrifuge tubes during large-scale cell culture collection. This saves materials and labor to a certain extent, while also reducing sample contamination issues caused by cell collection tube transfer operations. Because the sieve 2 and centrifuge tube are not an integrated device, both the centrifuge tube and the sieve 2 can be used independently, solving the problem of the sieve 2 obstructing the pouring of cell supernatant after cell filtration and centrifugation.
[0022] See Figure 2 As can be seen, this utility model discloses a sterile combination set of a liquid collection container 1 with a sieve, including a collection container 1, a sieve 2, and a container lid 3. The collection container 1 has an opening 4 at the top, a base 5 at the bottom, and annular sidewalls 6 on all four sides. A collection cavity 7 is located inside the collection container 1. The sieve 2 includes a bottom 8 and side edges 9. The bottom 8 is a circular sieve, and the side edges are four square sieves 11, with reinforcing ribs 12 between the four square sieves 11. The top of the sieve 2 is provided with a handle 13. The sieve 2 has sieve holes 14 evenly distributed on it. The size of the opening 4 matches the size of the container lid 3. The opening 4 is provided with an external thread, and the container lid 3 is provided with an internal thread. The internal and external threads match each other. The size of the collection container 1 is 250ml. The size of the sieve holes 14 on the sieve 2 is 100 mesh. There is a slot below the opening 4. The edge of the sieve 2 can be placed in the slot. The diameter of the ring formed by the four square sieves 11 matches the diameter of the circular sieve 10. The sieve holes 14 can be set as large sieve holes or small sieve holes.
[0023] Since the above description is only a specific embodiment of the present utility model, the protection of the present utility model is not limited thereto. Any equivalent changes or substitutions of the technical features of the present technical solution that can be conceived by those skilled in the art are covered within the protection scope of the present utility model.
Claims
1. A sterile combination set of a screen liquid collecting container, a screen and a container cover, wherein the collecting container is provided with an opening at the top end, a bottom at the bottom end, a ring-shaped side wall at the four sides, and a collecting cavity inside; characterized in that: The screen comprises a screen bottom and screen side edges, the screen bottom is a circular screen, the screen side edges are four square screens, reinforcing ribs are arranged between the four square screens, a handle is arranged on the screen top, and screen holes are uniformly distributed on the screen.
2. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: The size of the opening and the size of the container cover are matched with each other, the opening is provided with external threads, the container cover is provided with internal threads, and the internal and external threads are matched with each other.
3. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: The size of the collection container is 250ml.
4. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: The size of the screen holes on the screen is 100 meshes.
5. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: A clamping groove is arranged below the opening, and the screen edge can be arranged in the clamping groove.
6. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: The diameter of the circular ring surrounded by the four square screens and the diameter of the circular screen are matched with each other.
7. A sterile combination set of a screen liquid collection container according to claim 1, characterized in that: The screen holes can be large screen holes and small screen holes.
Citation Information
Patent Citations
Cell screen
CN210546175U