Blood component preparation instrument
The centrifuge rack is rotated by a motor-driven support rod and gear system. Combined with the spring clamp design for holding the blood bag opening, the problems of uneven distribution of active plasma components and unsealed blood bags are solved, achieving uniform freezing and convenient handling of blood components in the blood component preparation instrument.
Patent Information
- Application Number
- CN202422843155.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-11-21
AI Technical Summary
In existing blood component preparation instruments, the active components of plasma are not uniformly distributed and are not frozen evenly during the preparation process. At the same time, the blood bags are not sealed, making them difficult to handle and reducing the usability of the equipment.
The centrifuge rack is rotated by a motor-driven support rod and gear system, and the blood bag opening is sealed by spring clamps to ensure that the plasma is frozen evenly and is easy to handle.
This achieves uniform freezing of active ingredients in plasma and airtight sealing of blood bags, improving the usability and efficiency of the equipment.
Smart Images

Figure CN223616036U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of preparation instrument technology, specifically a blood component preparation instrument. Background Technology
[0002] After centrifugation, the collected blood separates into three layers: a light yellow PPP (platelet-rich plasma), a milky white PRP (platelet-rich plasma), and a dark red red blood cell layer. Following centrifugation and separation, the blood cells are further processed and stored in separate blood bags.
[0003] In the process of using existing blood component preparation instruments, plasma in a constant temperature water bath is siphoned into a plasma collection bag outside the equipment and then rapidly frozen. This results in inconsistent active components in the plasma during the blood component preparation process, and the freezing is not uniform. In addition, the blood bags are not sealed during the placement of the equipment, making it difficult for personnel to handle and reducing the usability of the equipment. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a blood component preparation instrument that has the advantages of uniform plasma preparation and airtight blood bags, thus solving the problems mentioned in the background section.
[0005] This utility model provides the following technical solution: a blood component preparation instrument, including a housing, a preparation chamber fixedly installed on the top of the housing, a control console fixedly installed on the outer wall of the housing, a motor fixedly installed on the inner wall of the housing, a support rod fixedly mounted on the power output shaft of the motor, a first gear fixedly installed on the top of the support rod, a second gear meshing with the outer wall of the first gear, a rotating plate fixedly installed on the bottom of the second gear, a centrifuge frame rotatably sleeved on the outer wall of the support rod, a square plate fixedly installed on the outer wall of the centrifuge frame, a cylinder fixedly installed on the inner wall of the square plate, a round rod slidably sleeved on the inner wall of the cylinder, and a spring installed on the outer wall of the round rod.
[0006] As a preferred technical solution of this utility model: the control console is electrically connected to the motor, and the inner wall between the box and the preparation chamber is provided with several through holes, which are evenly distributed on the lower part of the outer wall of the centrifuge rack.
[0007] As a preferred technical solution of this utility model: the inner wall of the centrifuge rack is provided with a sliding groove, and the inner wall of the sliding groove is adapted to the outer wall of the sliding rod.
[0008] As a preferred technical solution of this utility model: the number of square plates and fixing plates is several, and the several square plates and fixing plates are evenly distributed on the outer wall of the centrifuge frame.
[0009] As a preferred technical solution of this utility model: one end of the spring is fixed to the outer wall of the round rod, and the other end of the spring is fixed to the inner wall of the cylinder.
[0010] As a preferred technical solution of this utility model: the outer wall of the box is rotatably connected to a box door, and a sealing strip is installed on the outer edge of the box door.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This blood component preparation instrument, through the control console, uses a motor to drive the support rod to rotate, the first gear drives the second gear to rotate, and the second gear drives the slide rod to slide in the groove on the inner wall of the centrifuge rack. When the slide rod rotates to slide in the groove, the centrifuge rack pauses intermittently. When the slide rod disengages from the groove, the rotating plate and the centrifuge rack rotate on the outer wall, so that the centrifuge rack rotates, which is conducive to the uniform freezing of blood and the preservation of active components in plasma.
[0013] 2. This blood component preparation instrument has a door that can be opened by pulling it with external force. Two fixing plates are used to seal and clamp the opening of the blood bag. The fixing plates are pressed against the spring by the round rod, and the spring is compressed, causing the two fixing plates to separate for easy handling. The spring force is released and pushes the fixing plate to fit against the other fixing plate, thus clamping and sealing the opening of the blood bag. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic diagram of the square plate structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the second gear structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the spring structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the slide bar structure of this utility model.
[0019] In the diagram: 1. Box body; 2. Box door; 3. Control console; 4. Preparation chamber; 5. Square plate; 6. Fixing plate; 7. First gear; 8. Second gear; 9. Rotating plate; 10. Centrifuge rack; 11. Support rod; 12. Motor; 13. Cylinder; 14. Spring; 15. Round rod; 16. Sliding rod. Detailed Implementation
[0020] 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.
[0021] Please see Figure 1 - Figure 5 A blood component preparation instrument includes a housing 1, a preparation chamber 4 fixedly installed on the top of the housing 1, a control console 3 fixedly installed on the outer wall of the housing 1, a motor 12 fixedly installed on the inner wall of the housing 1, a support rod 11 fixedly mounted on the power output shaft of the motor 12, a first gear 7 fixedly installed on the top of the support rod 11, a second gear 8 meshing with the outer wall of the first gear 7, a rotating plate 9 fixedly installed on the bottom of the second gear 8, a centrifuge frame 10 rotatably sleeved on the outer wall of the support rod 11, a square plate 5 fixedly installed on the outer wall of the centrifuge frame 10, a cylinder 13 fixedly installed on the inner wall of the square plate 5, a round rod 15 slidably sleeved on the inner wall of the cylinder 13, and a spring 14 installed on the outer wall of the round rod 15.
[0022] In the above structure, the support rod 11 is installed to support the equipment, thereby increasing the stability of the equipment operation.
[0023] In a preferred embodiment: the control console 3 is electrically connected to the motor 12, and the inner wall between the housing 1 and the preparation chamber 4 is provided with several through holes, which are evenly distributed below the outer wall of the centrifuge rack 10.
[0024] In the above structure, by controlling the control console 3, the motor 12 drives the support rod 11 to rotate. The motor 12 drives the centrifuge rack 10 to rotate through the interaction between the first gear 7 and the second gear 8, so that the blood bag installed on the outer wall of the centrifuge rack 10 rotates. The liquid storage chamber on the inner wall of the bottom of the box 1 forms a low temperature for the liquid in the storage chamber, and the blood on the inner wall of the preparation chamber 4 is frozen through the through hole, so that the active ingredients in the plasma are preserved.
[0025] In a preferred embodiment, the inner wall of the centrifuge rack 10 is provided with a groove, and the inner wall of the groove is adapted to the outer wall of the slide rod 16.
[0026] In the above structure, the first gear 7 drives the second gear 8 to rotate, and the second gear 8 drives the slide rod 16 to slide in the inner wall groove of the centrifuge frame 10. When the slide rod 16 rotates to slide in the groove, the centrifuge frame 10 pauses intermittently. When the slide rod 16 disengages from the groove, the rotating plate 9 and the centrifuge frame 10 rotate on the outer wall, so that the centrifuge frame 10 rotates, which is conducive to the uniform freezing of blood and improves the practicality of the equipment.
[0027] In a preferred embodiment, there are several square plates 5 and fixed plates 6, and these square plates 5 and fixed plates 6 are evenly distributed on the outer wall of the centrifuge frame 10.
[0028] In the above structure, by installing several square plates 5 and fixed plates 6 evenly distributed on the outer wall of the centrifuge rack 10, the space occupied by the equipment is effectively reduced, the blood bag preparation process is avoided from being messy, personnel do not need to walk back and forth, and it is difficult to pick up the bags, thus improving work efficiency.
[0029] In a preferred embodiment, one end of the spring 14 is fixed to the outer wall of the round rod 15, and the other end of the spring 14 is fixed to the inner wall of the cylinder 13.
[0030] In the above structure, the other end of the spring 14 is fixed to the inner wall of the cylinder 13, and the opening of the blood bag is sealed and clamped by two fixing plates 6. The fixing plates 6 abut against the spring 14 through the round rod 15, and the spring 14 is compressed. The two fixing plates 6 are separated, making it easy for personnel to take it out. The spring 14 releases its elasticity and pushes the fixing plate 6 to fit with the other fixing plate 6 through the round rod 15, so that the opening of the blood bag is sealed.
[0031] In a preferred embodiment: the outer wall of the box 1 is rotatably connected to the box door 2, and a sealing strip is installed on the outer edge of the box door 2.
[0032] In the above structure, a door 2 is rotatably connected to the outer wall of the box 1. The door 2 is pulled by external force, causing it to rotate and open on the outer wall of the box 1, making it easy for personnel to take out blood bags. A sealing strip is installed on the outer edge of the door 2, so that the door 2 can seal the inner wall of the box 1 and the preparation chamber 4 during the use of the equipment, preventing gas leakage and affecting the quality of blood preparation.
[0033] Working principle: By placing the equipment on a flat surface and pulling the door 2 with external force, the door 2 rotates and opens on the outer wall of the box body 1. Two fixing plates 6 seal and clamp the blood bag opening, so that the fixing plates 6 abut against the spring 14 through the round rod 15. The spring 14 is compressed, and the two fixing plates 6 separate, making it easy for personnel to pick up. When the spring 14 is released, the round rod 15 pushes the fixing plate 6 to fit against the other fixing plate 6, achieving clamping and sealing the blood bag opening. By controlling the control console 3, the motor 12 drives the support rod 11 to rotate. The motor 12 rotates through the first gear 7 and the second gear 8. The rotating plate 9 and the centrifuge rack 10 rotate in coordination, causing the blood bag mounted on the outer wall of the centrifuge rack 10 to rotate. The blood is prepared by freezing through the liquid storage chamber on the inner wall of the bottom of the box 1, so that the active ingredients in the plasma are preserved. The first gear 7 drives the second gear 8 to rotate, and the second gear 8 drives the slide rod 16 to slide in the groove on the inner wall of the centrifuge rack 10. When the slide rod 16 rotates to slide in the groove, the centrifuge rack 10 pauses intermittently. When the slide rod 16 disengages from the groove, the rotating plate 9 and the centrifuge rack 10 rotate on the outer wall, so that the centrifuge rack 10 rotates, which is conducive to the uniform freezing of blood and improves the practicality of the equipment.
[0034] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A blood component preparation instrument, comprising a housing (1), characterized in that: The top of the box (1) is fixedly installed with a preparation chamber (4), the outer wall of the box (1) is fixedly installed with a control console (3), the inner wall of the box (1) is fixedly installed with a motor (12), the power output shaft of the motor (12) is fixedly fitted with a support rod (11), the top of the support rod (11) is fixedly installed with a first gear (7), the outer wall of the first gear (7) is meshed with a second gear (8), the bottom of the second gear (8) is fixedly installed with a rotating plate (9), the outer wall of the support rod (11) is rotatably sleeved with a centrifuge frame (10), the outer wall of the centrifuge frame (10) is fixedly installed with a square plate (5), the inner wall of the square plate (5) is fixedly installed with a cylinder (13), the inner wall of the cylinder (13) is slidably sleeved with a round rod (15), and the outer wall of the round rod (15) is installed with a spring (14).
2. The blood component preparation instrument according to claim 1, characterized in that: The control console (3) is electrically connected to the motor (12), and the inner wall between the box (1) and the preparation chamber (4) is provided with several through holes, which are evenly distributed below the outer wall of the centrifuge rack (10).
3. A blood component preparation instrument according to claim 2, characterized in that: The centrifuge rack (10) has a groove on its inner wall, and the inner wall of the groove is adapted to the outer wall of the slide rod (16).
4. A blood component preparation instrument according to claim 1, characterized in that: The number of square plates (5) and fixed plates (6) is several, and the several square plates (5) and fixed plates (6) are evenly distributed on the outer wall of the centrifuge frame (10).
5. A blood component preparation instrument according to claim 4, characterized in that: One end of the spring (14) is fixed to the outer wall of the round rod (15), and the other end of the spring (14) is fixed to the inner wall of the cylinder (13).
6. A blood component preparation instrument according to claim 1, characterized in that: The outer wall of the box (1) is rotatably connected to a box door (2), and a sealing strip is installed on the outer edge of the box door (2).