Centrifugal device for extracting bone marrow mesenchymal stem cells

By introducing a clamping mechanism into the centrifuge device, the problem of test tubes colliding with the inner wall during high-speed rotation is solved, achieving stable fixation of the test tubes and adaptability to multiple sizes, thus improving the practicality and stability of the device.

CN224507317UActive Publication Date: 2026-07-17HENAN HUAZHIYUAN HEALTH MANAGEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN HUAZHIYUAN HEALTH MANAGEMENT CO LTD
Filing Date
2025-08-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing bone marrow mesenchymal stem cell extraction devices, the test tubes collide with the inner wall of the centrifuge chamber during high-speed rotation, causing wear and tear.

Method used

A centrifuge device with a clamping mechanism was designed. The sliding rod is driven by a power component to move in a direction that brings the test tubes closer to each other. The top head clamps the test tubes in the placement groove to prevent the test tubes from colliding with the inner wall and to accommodate test tubes of different sizes.

Benefits of technology

It effectively avoids collisions between the test tubes and the inner wall during centrifugation, improving the practicality and stability of the device and adapting to the placement of test tubes of different sizes.

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Abstract

The utility model discloses a centrifugal device is extracted with marrow mesenchymal stem cell belongs to stem cell extraction technical field, including box, the inner wall between box is fixed with baffle, the top of baffle is rotatably connected with centrifugal box, and the top of centrifugal box is provided with the placement groove, and the top of centrifugal box is provided with multiple groups of abutting mechanism, and abutting mechanism includes the mounting ring fixedly connected in the top of centrifugal box, and the wall of mounting ring is slidably connected with multiple groups of circumferentially arranged slide rod, and one end of slide rod is inserted into mounting ring and is fixedly connected with the top head, and the inner wall between top head and mounting ring is fixedly connected with spring, and abutting mechanism still includes power assembly. Advantageous effects lie in: the notch of placement groove is provided with abutting mechanism, drives multiple slide rods to move to the direction of mutual approach through power assembly, and the test tube is abutted through the top head, avoids the impact of test tube and placement groove inner wall in the process of rotating, and simultaneously facilitates the placement of test tube of different sizes in placement groove, improves practicality.
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Claims

1. A centrifuge device for extracting bone marrow mesenchymal stem cells, comprising a box (1), a cover (101) hinged to the top of the box (1), a partition (201) fixedly connected between the inner walls of the box (1), a centrifuge box (203) rotatably connected to the top of the partition (201), a plurality of placement slots (204) being provided on the top of the centrifuge box (203), and a driving assembly disposed below the partition (201), the driving assembly being used to drive the centrifuge box (203) to rotate, characterized in that: The centrifuge box (203) has multiple sets of clamping mechanisms located at the opening of the placement slot (204) on its top. Each clamping mechanism includes a mounting ring (301) fixedly connected to the top of the centrifuge box (203). The mounting ring (301) is concentric with the placement slot (204). Multiple sets of circumferentially arranged sliding rods (302) are slidably connected inside the wall of the mounting ring (301). One end of each sliding rod (302) extends into the mounting ring (301) and is fixedly connected to a top head (303). A spring (304) is fixedly connected between the top head (303) and the inner wall of the mounting ring (301). The clamping mechanism also includes a power assembly for driving the multiple sets of sliding rods (302) to move toward each other.

2. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 1, characterized in that: The power assembly includes a drive ring (305) threadedly connected to the top of the centrifuge box (203). The drive ring (305) is concentric with the mounting ring (301) and the mounting ring (301) is located inside the drive ring (305). A protrusion (306) is fixedly connected to the inner wall of the drive ring (305). The end of the slide rod (302) near the protrusion (306) is wedge-shaped.

3. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 2, characterized in that: The outer wall of the drive ring (305) is provided with anti-slip texture.

4. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 1, characterized in that: The top (303) is hemispherical.

5. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 1, characterized in that: The drive assembly includes a drive motor (202) fixedly connected to the bottom wall inside the box (1). The output shaft of the drive motor (202) extends out of the partition (201) and is fixedly connected to the centrifuge box (203). The output shaft of the drive motor (202) is rotatably connected to the partition (201).

6. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 1, characterized in that: The top of the partition (201) is provided with an annular groove (205), and the bottom of the centrifuge box (203) is provided with a number of support columns (206), which are slidably connected in the groove (205).

7. The bone marrow mesenchymal stem cell extraction centrifugal device according to claim 1, characterized in that: A handle (102) is fixedly connected to the top front side of the cover (101).

Citation Information

Patent Citations

  • Centrifugal device for extracting bone marrow mesenchymal stem cells

    CN222789469U