Pretreatment device for medical sample detection
By designing an automated loading structure and drive components, automatic centrifugation and stable transfer of blood samples are achieved, solving the problems of cumbersome operation and sample contamination in existing technologies, and improving detection efficiency and sample purity.
Patent Information
- Application Number
- CN202422357731.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Existing blood sample centrifugation equipment is cumbersome to operate, and the removal of plasma or serum after centrifugation requires careful operation to avoid disturbing the red blood cells, which increases the difficulty and risk of operation.
A pretreatment device including a loading structure and a driving assembly was designed. The placement rack and placement ring were driven by a motor to rotate, thereby realizing automatic centrifugation and stable movement of samples. The cooperation of the limiting sleeve and the conical shell was used to ensure the stable transfer and separation of samples after centrifugation.
It simplifies the operation process, reduces waiting time, avoids contamination and remixing of samples after centrifugation, improves detection efficiency and sample purity, and reduces operation difficulty and risk.
Smart Images

Figure CN223346556U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical detection equipment, in particular to a pretreatment device for medical sample detection. Background Art
[0002] Sample pretreatment is the processing of original samples during medical testing. Commonly used sample pretreatment methods include sample dissolution, sample extraction, sample purification, sample concentration, sample modification, etc. Its purpose is to reduce detection interference factors, improve detection accuracy, and improve detection results.
[0003] When testing blood samples, centrifugal equipment is often required to separate plasma or serum. However, existing blood sample centrifuges require medical staff to place individual sampling bottles into the centrifuge one by one, which is a cumbersome operation. At the same time, when testing plasma, extremely careful operation is required to remove the centrifuged blood sample to avoid disturbing the red blood cells. Therefore, we propose a pretreatment device for medical sample testing to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose a pretreatment device for medical sample detection.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A pretreatment device for medical sample testing includes a machine platform, a feeding structure is provided on the machine platform, and a driving component is provided on the machine platform;
[0007] The feeding structure includes a first driving motor fixedly connected to the machine, the output end of the first driving motor is fixedly connected to a placing rack, a plurality of placing rings are rotatably connected to the placing rack, and a placing ring is rotatably connected to the placing ring, the inner wall of the placing ring is provided with a plurality of surrounding connecting cards, a through hole is provided on the placing ring, and a limiting rod is slidably connected in the through hole, a compression spring is fixedly sleeved on the limiting rod, and the compression spring is fixedly connected to the placing ring, a card slot matching the limiting rod is provided on the placing ring, and a top rod for driving the limiting rod to move is provided on the driving assembly.
[0008] Preferably, the drive assembly includes a sink provided on the machine platform, a second drive motor is arranged in the sink, the output end of the second drive motor is fixedly connected to an electric push rod, the upper end of the electric push rod is fixedly connected to a conical shell, a plurality of limit grooves are provided on the conical shell, the top rod is fixedly connected to the conical shell, and a drive groove matching the connecting card is also provided on the conical shell.
[0009] Preferably, the push rod comprises a rod body fixedly connected to the conical shell, and the rod body is provided with two arc segments.
[0010] Preferably, the limiting rod is L-shaped, and one end of the limiting rod close to the slot is provided with a chamfer.
[0011] Preferably, a protective shell is fixedly connected to the machine platform, and the protective shell covers the driving component.
[0012] Preferably, the upper end of the placement rack is fixedly connected to an extension rod, and a tapered spline is provided on the extension rod. One side of the protective shell is fixedly connected to a cross bar, and a spline sleeve matching the tapered spline is slidably connected to the cross bar.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The utility model provides a loading structure, so that medical staff can directly place the sampling bottle to be tested in the limiting sleeve, and then control the operation of the pretreatment device. After the sample is centrifuged, the loading structure can smoothly move the centrifuged sample to the unloading area and fix it. At this time, the user can first extract plasma or serum, and then take the sampling bottle out of the limiting sleeve to avoid contamination of the centrifuged sample, which greatly facilitates the user's operation, reduces waiting time, and optimizes the detection process.
[0015] 2. The utility model sets a driving assembly, adopts an electric push rod to drive the conical shell to move upward, uses the push rod to drive the limit rod to move, and then uses the conical shell to drive the limit sleeve to rotate, so that the sampling tube is rotated to an inclined state. At the same time, the cooperation between the limit groove and the connecting card is used, so that when the second driving motor drives the conical shell to rotate, it can drive the placement ring to rotate, thereby achieving the purpose of centrifuging the blood sample in the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a side structural diagram of a pre-processing device for medical sample testing proposed by the present invention;
[0017] Figure 2 This is a schematic diagram of the top view of a pre-processing device for medical sample testing proposed by the present invention;
[0018] Figure 3 This is a schematic diagram of the placement ring structure of a pre-processing device for medical sample testing proposed by the present invention;
[0019] Figure 4 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;
[0020] Figure 5 for Figure 1Schematic diagram of the enlarged structure at point B in the middle.
[0021] In the figure: 1. Machine; 2. First drive motor; 3. Placement rack; 4. Placement ring; 5. Limiting sleeve; 6. Connecting card; 7. Limiting rod; 8. Compression spring; 9. Card slot; 10. Push rod; 11. Second drive motor; 12. Electric push rod; 13. Conical shell; 14. Limiting slot; 15. Protective shell; 16. Extension rod; 17. Conical spline; 18. Cross bar; 19. Spline sleeve. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] Reference Figure 1-5 , a pretreatment device for medical sample detection, comprising a machine 1, wherein the machine 1 is provided with a feeding structure and a driving component;
[0024] The feeding structure includes a first driving motor 2 fixedly connected to the machine 1, and the output end of the first driving motor 2 is fixedly connected to a placing frame 3, a plurality of placing rings 4 are rotatably connected to the placing frame 3, and a placing ring 4 is rotatably connected to the placing ring 4, and the inner wall of the limiting ring 4 is provided with a plurality of surrounding connecting clips 6, a through hole is provided on the placing ring 4, and a limiting rod 7 is slidably connected in the through hole, a compression spring 8 is fixedly sleeved on the limiting rod 7, and the compression spring 8 is fixedly connected to the placing ring 4, a card slot 9 matching the limiting rod 7 is provided on the placing ring 4, and a push rod 10 for driving the limiting rod 7 to move is provided on the driving assembly;
[0025] In this design, when the user pre-processes the sampling bottle containing the blood sample, the user first places the sampling bottle in the limiting sleeve 5. During the operation of the device, the sampling bottle that is not located above the drive assembly can still be removed and filled with a new sampling bottle;
[0026] After the sampling bottle is placed in the limiting sleeve 5, the first driving motor 2 is used to drive the placement rack 3 to rotate, and the placement rack 3 loaded with the sampling bottle is moved to the top of the driving component, and then the driving component is used to drive the placement rack 3 to rotate to achieve the purpose of centrifuging the blood sample in the sampling bottle. After the centrifugation is completed, the first driving motor 2 is used to drive the placement rack 3 to move the processed sampling bottle to a position away from the driving mechanism. At this time, the limiting rod 7 is used in conjunction with the card slot 9 to fix the limiting sleeve 5 in a vertical state. At this time, the user can first use the extraction equipment to take out the separated plasma or serum from the sampling bottle, thereby effectively avoiding disturbing the red blood cells, causing the plasma or serum to mix with the red blood cells again, and after the plasma or serum is extracted, the sampling bottle containing the red blood cells can be directly removed and a new sampling bottle can be placed in the limiting sleeve 5, which optimizes the pretreatment process, improves the purity of the blood sample, and avoids re-mixing of the sample after centrifugation. It not only improves the pretreatment efficiency, but also reduces the operation difficulty and risk.
[0027] Furthermore, the drive assembly includes a sink provided on the machine 1, a second drive motor 11 is provided in the sink, an output end of the second drive motor 11 is fixedly connected to an electric push rod 12, wherein the electric push rod 12 can be powered by a brush, the upper end of the electric push rod 12 is fixedly connected to a conical shell 13, a plurality of limit slots 14 are provided on the conical shell 13, the ejector rod 10 is fixedly connected to the conical shell 13, and a drive slot matching the connection card 6 is also provided on the conical shell 13;
[0028] After the lifting of the lifting mechanism 11, the lifting mechanism 11 is lifted up, and the support 14 is lifted up, so that the lifting mechanism 11 can be lifted up, and the lifting mechanism 11 is lifted up, so that the lifting mechanism 11 can be lifted up, and the lifting mechanism 11 is lifted up, so that the lifting mechanism 11 can be lifted up, and the lifting mechanism 11 is lifted up
[0029] Furthermore, the push rod 10 includes a rod body fixedly connected to the conical shell 13, and two arc segments are provided on the rod body. In this design, the two arc segments are provided so that when the conical shell 13 moves upward to the maximum stroke, the limit rod 7 can be inserted into the slot 9, so that the limit sleeve 5 will not rotate to a horizontal state under the action of centrifugal force during the centrifugation process, thereby ensuring the centrifugal effect on the sampling bottle, and after the centrifugation process is completed, the limit sleeve 5 can be smoothly rotated to a vertical state.
[0030] Furthermore, the limiting rod 7 is L-shaped, and one end of the limiting rod 7 close to the slot 9 is chamfered;
[0031] The L-shaped limiting rod 7 is provided to facilitate the push rod 10 to drive the limiting rod 7 to move in the horizontal direction.
[0032] Furthermore, a protective shell 15 is fixedly connected to the machine 1, and the protective shell 15 covers the driving component.
[0033] The protective shell 15 is provided to shield the placement rack 3 in the rotating state, so as to prevent the user's limbs from coming into contact with the placement rack 3 and the conical sleeve in the high-speed rotating state.
[0034] Furthermore, an extension rod 16 is fixedly connected to the upper end of the placement rack 3, and a tapered spline 17 is provided on the extension rod 16. A cross bar 18 is fixedly connected to one side of the protective shell 15, and a spline sleeve 19 matching the tapered spline 17 is slidably connected to the cross bar 18.
[0035] In this design, when the sampling bottles on one of the racks 3 are centrifuged, when the next batch of sampling bottles are moved to the top of the drive assembly, the rack 3 loaded with the processed sampling bottles is moved to a position close to the spline sleeve 19, and the spline sleeve 19 is used to limit the rotation of the rack 3, so that the user can extract plasma or serum from the sampling bottles.
[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A pretreatment device for medical sample detection, comprising a machine (1), characterized in that: The machine (1) is provided with a feeding structure, and the machine (1) is provided with a driving component; The feeding structure comprises a first driving motor (2) fixedly connected to the machine (1); the output end of the first driving motor (2) is fixedly connected to a placement rack (3); a plurality of placement rings (4) are rotatably connected to the placement rack (3); and a placement ring (4) is rotatably connected to the placement ring (4); the inner wall of the placement ring (4) is provided with a plurality of surrounding connection clamps (6); a through hole is provided on the placement ring (4), and a limiting rod (7) is slidably connected in the through hole; a compression spring (8) is fixedly sleeved on the limiting rod (7), and the compression spring (8) is fixedly connected to the placement ring (4); a card slot (9) matching the limiting rod (7) is provided on the placement ring (4); and a push rod (10) for driving the limiting rod (7) to move is provided on the driving assembly.
2. A pretreatment device for medical sample detection according to claim 1, characterized in that: The driving assembly comprises a sink provided on the machine (1), a second driving motor (11) being arranged in the sink, an output end of the second driving motor (11) being fixedly connected to an electric push rod (12), an upper end of the electric push rod (12) being fixedly connected to a conical shell (13), a plurality of limiting grooves (14) being provided on the conical shell (13), the push rod (10) being fixedly connected to the conical shell (13), and a driving groove matching the connecting card (6) being further provided on the conical shell (13).
3. A pretreatment device for medical sample detection according to claim 2, characterized in that: The push rod (10) comprises a rod body fixedly connected to the conical shell (13), and two arc segments are provided on the rod body.
4. A pretreatment device for medical sample detection according to claim 1, characterized in that: The limiting rod (7) is L-shaped, and one end of the limiting rod (7) close to the clamping slot (9) is provided with a chamfer.
5. A pretreatment device for medical sample detection according to claim 1, characterized in that: A protective shell (15) is fixedly connected to the machine platform (1), and the protective shell (15) covers the driving component.
6. A pretreatment device for medical sample detection according to claim 5, characterized in that: The upper end of the placement rack (3) is fixedly connected to an extension rod (16), and a tapered spline (17) is provided on the extension rod (16); one side of the protective shell (15) is fixedly connected to a cross bar (18), and a spline sleeve (19) matching the tapered spline (17) is slidably connected to the cross bar (18).