Protective device of plasma separator

Abstract

The utility model provides a plasma separator protection device which comprises a cylindrical base, a cover plate assembly arranged on the top of the base and a locking assembly arranged on the top of the base and used for locking the cover plate assembly, and the cover plate assembly comprises a first cover plate and a second cover plate which are sequentially arranged on the top of the base in the preset direction. At least the second cover plate is arranged on the base in a sliding mode in the preset direction, the locking assembly comprises a clamping plate rotationally arranged on the top of the base and clamping protrusions arranged on the clamping plate, clamping grooves are formed in the first cover plate and the second cover plate, and the multiple clamping protrusions correspond to the clamping grooves one to one; when the second cover plate moves in the preset direction so as to be in butt joint with the first cover plate, the second cover plate rotates along with the clamping plate and abuts against the cover plate assembly, and the clamping protrusions can be clamped in the corresponding clamping grooves so as to lock the cover plate assembly. According to the plasma separator protection device, the influence of external interference on rotation of the centrifugal cup is effectively avoided, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a protection device for a plasma separator. Background Art

[0002] Plasma separation is often carried out in medical and bioengineering experiments. There are many plasma separation methods, and the equipment and operation processes used are different. The more common one is to carry out automatic blood separation through a blood centrifuge. Due to the different specific gravities of the components of blood, the blood is usually layered by the centrifugal force generated by the blood centrifuge, and the separated plasma or serum can be obtained.

[0003] At present, during the process of separating blood, the centrifuge cup is usually placed on the turntable of the plasma centrifuge, and the centrifuge cup is driven to rotate at a high speed to separate the plasma in the blood. When the centrifuge cup is in a high-speed motion state, external interference is likely to affect the stable rotation of the centrifuge cup, which may cause the blood donation to be interrupted and also has potential safety hazards. Content of the Utility Model

[0004] In view of this, the utility model aims to provide a protection device for a plasma separator to effectively avoid the influence of external interference on the rotation of the centrifuge cup and improve the use safety.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] A protection device for a plasma separator includes a cylindrical base, a cover plate assembly provided on the top of the base, and a locking assembly provided on the top of the base for locking the cover plate assembly; the cover plate assembly includes a first cover plate and a second cover plate sequentially provided on the top of the base along a preset direction, and at least the second cover plate is slidably provided on the base along the preset direction;

[0007] The locking assembly includes a clamping plate rotatably provided on the top of the base and a clamping protrusion provided on the clamping plate, and clamping grooves are provided on both the first cover plate and the second cover plate. The clamping protrusions are multiple and correspond to the clamping grooves one by one; when the second cover plate moves along the preset direction to dock with the first cover plate, it rotates with the clamping plate and presses against the cover plate assembly, and each clamping protrusion can be respectively clamped in the corresponding clamping groove to lock the cover plate assembly.

[0008] Further, the second cover plate is provided with a guiding groove extending along the preset direction, and a guiding block adapted to the guiding groove is provided on the top of the base. The second cover plate is slidably provided on the guiding block through the guiding groove.

[0009] Further, the guiding groove adopts a dovetail groove.

[0010] Further, on one side of the first cover plate facing the second cover plate, there is a slotted groove arranged along a preset direction. A gear is rotatably arranged in the slotted groove, and a rack arranged along the preset direction is provided on the second cover plate. The rack meshes with the gear.

[0011] Further, the slotted groove arranged on one side of the first cover plate facing the second cover plate and along the preset direction, the gear rotatably arranged in the slotted groove, and the rack arranged on the second cover plate and along the preset direction are all two arranged at intervals perpendicular to the preset direction.

[0012] Further, arc-shaped notches are provided on both the first cover plate and the second cover plate. When the second cover plate is butted against the first cover plate, a placement groove for placing a centrifuge cup can be formed at the two arc-shaped notches.

[0013] Further, an elastic member is provided between at least one of the clamping plates and the base. The elastic member is used to provide a force for the clamping plate to turn towards the cover plate assembly.

[0014] Further, the clamping plate is arranged on the base through a rotating shaft.

[0015] Further, the elastic member adopts a torsion spring sleeved on the rotating shaft. One end of the torsion spring abuts against the rotating shaft, and the other end of the torsion spring abuts against the clamping plate.

[0016] Further, a support bracket for at least supporting the bottom of the centrifuge cup is arranged in the base.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] For the plasma separator protection device of the present utility model, by setting the cover plate assembly and the locking assembly, it effectively avoids the interference caused by the external interference to the centrifuge cup when the centrifuge cup is moving at high speed, and improves the use safety of the device. The second cover plate is slidably arranged on the base, which is beneficial to improving the convenience of protecting the centrifuge cup. The clamping protrusions and the clamping grooves are arranged in one-to-one correspondence. Thus, it is beneficial to improve the stability between the devices, and further improve the safety property.

[0019] Secondly, the setting of the guiding groove and the guiding block is beneficial to improving the stability of the device, and can also ensure the movement accuracy of the second cover plate. The guiding groove adopts a dovetail groove. The setting of the dovetail groove improves the stable connection between the two while ensuring that the second cover plate can slide on the base. Arranging the gear in the slotted groove is beneficial to forming an avoidance space for the gear and the rack. Thus, the structure is reasonable and easy to arrange. By setting the gear and the rack, the second cover plate can slide relative to the first cover plate on the top of the base, which brings convenience to the protection of the centrifuge cup.

[0020] Furthermore, the grooving, gears, and racks are each arranged at intervals of two in a direction perpendicular to the preset direction, which can ensure the overall stability of the device. The provision of the arc-shaped notch can form a placement groove when the first cover plate and the second cover plate are butted, facilitating the placement of the centrifuge cup and also enabling the liquid inlet pipe of the centrifuge cup to extend from the notch position to be connected to the blood collection tube and the blood transfusion tube. An elastic member is provided between the clamping plate and the base, which can provide assistance when the clamping plate turns towards the cover plate assembly.

[0021] Moreover, the clamping plate is provided on the base through a rotating shaft, which can enhance the stable connection of the clamping plate. The elastic member is a torsion spring. The advantage of this setting is that it is conducive to cost reduction, and the torsion spring also has stable elasticity, exerting a certain pressing force on the clamping plate, thereby enhancing the connection stability between the clamping plate and the cover plate assembly. The provision of the support bracket can support the centrifuge cup and ensure the stability of the centrifuge cup within the protection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0023] Figure 1 is a schematic diagram of the overall structure of the plasma separator protection device according to the embodiment of the present utility model in a closed state;

[0024] Figure 2 is a schematic diagram of the overall structure of the plasma separator protection device according to the embodiment of the present utility model in an unfolded state;

[0025] Figure 3 is Figure 2 an enlarged view of the structure shown at A in

[0026] Figure 4 is a schematic diagram of the structure of the cover plate assembly according to the embodiment of the present utility model;

[0027] Figure 5 is Figure 4 an enlarged view of the structure shown at B in

[0028] Figure 6 is Figure 4 an enlarged view of the structure shown at C in

[0029] Figure 7 is a schematic diagram of the structure of the clamping plate according to the embodiment of the present utility model;

[0030] Figure 8 is Figure 1 a partial schematic diagram of

[0031] Description of reference numerals:

[0032] 1. Base; 11. Guide block; 12. Connecting platform;

[0033] 2. Cover plate assembly; 21. First cover plate; 211. Groove; 212. Gear; 22. Second cover plate; 221. Guide groove; 222. Rack; 23. Arc-shaped notch; 24. Placing groove;

[0034] 3. Locking assembly; 31. Clamping plate; 311. Elastic member; 32. Clamping protrusion; 33. Clamping groove; 34. Rotating shaft;

[0035] 4. Bracket. Detailed implementation manners

[0036] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0037] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, if terms such as "first", "second", etc. appear, they are also only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0038] Taking the plasma separator protection device described in the present utility model as an example, the orientation terms such as "upper, lower, left, right, front, and back" used in the embodiments are defined based on Figure 1 the up-down direction (also known as the height direction), left-right direction (also known as the width direction), and front-back direction (also known as the length direction) in the state shown. "Inner" and "outer" are defined based on the outline of the corresponding component. For example, "inner" and "outer" defined based on the outline of the device, the side with the clamping plate provided on the device outline is "outer", and vice versa is "inner".

[0039] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connected", and "connecting member" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0040] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0041] Embodiment 1

[0042] This embodiment relates to a protective device for a plasma separator, which can effectively avoid the influence of external interference on the rotation of the centrifuge cup and improve the safety of the device during use. In terms of the overall structure, as Figure 1 shown, the protective device of this embodiment includes a cylindrical base 1, a cover plate assembly 2 provided on the top of the base 1, and a locking assembly 3 provided on the top of the base 1 for locking the cover plate assembly 2.

[0043] Here, by providing the cover plate assembly 2 and the locking assembly 3, the influence of external interference on the centrifuge cup can be effectively avoided under the condition that the centrifuge cup is moving at high speed, and the safety of the device during use is improved.

[0044] At the same time, the cover plate assembly 2 includes a first cover plate 21 and a second cover plate 22 that are sequentially provided on the top of the base 1 along a preset direction, and at least the second cover plate 22 is slidably provided on the base 1 along the preset direction. Sliding the second cover plate 22 on the base 1 is beneficial to improving the convenience of protecting the centrifuge cup.

[0045] Furthermore, as Figure 3 shown, the locking assembly 3 includes a clamping plate 31 rotatably provided on the top of the base 1, and a clamping protrusion 32 provided on the clamping plate 31. Clamping grooves 33 are provided on both the first cover plate 21 and the second cover plate 22, and there are multiple clamping protrusions 32 that are in one-to-one correspondence with the respective clamping grooves 33.

[0046] It can be understood that the locking assembly 3 is composed of the clamping plate 31, the clamping protrusion 32 provided on the clamping plate 31, and the clamping grooves 33 to cooperate to lock the cover plate assembly 2, and the clamping protrusions 32 and the clamping grooves 33 are arranged in one-to-one correspondence. Thus, it is beneficial to improve the stability between the devices and further improve the safety property.

[0047] Specifically, when the second cover plate 22 moves along the preset direction to be butted against the first cover plate 21, it rotates with the clamping plate 31 and presses against the cover plate assembly 2, and each clamping protrusion 32 can be respectively clamped in the corresponding clamping groove 33 to form a lock on the cover plate assembly 2. Thus, the connection stability of the cover plate assembly 2 can be ensured, and further the safety of the overall device during use can be improved, and the influence of external interference on the device can be avoided.

[0048] Based on the above overall introduction, in this embodiment, as a preferred implementation form, as Figure 1 and Figure 6As shown, the second cover plate 22 is provided with a guiding groove 221 extending along a preset direction, and the top of the base 1 is provided with a guiding block 11 adapted to the guiding groove 221. The second cover plate 22 is slidably arranged on the guiding block 11 through the guiding groove 221. Here, the arrangement of the guiding groove 221 and the guiding block 11 is conducive to improving the stability of the device and can also ensure the movement accuracy of the second cover plate 22.

[0049] Furthermore, in this embodiment, as a preferred implementation form, as Figure 6 shown, the guiding groove 221 adopts a dovetail groove. The arrangement of the dovetail groove improves the stable connection between the two while ensuring that the second cover plate 22 can slide on the base 1.

[0050] In addition, in this embodiment, as a preferred implementation form, as Figure 3 shown, on the side of the first cover plate 21 facing the second cover plate 22, there is a slotted opening 211 extending along a preset direction. A gear 212 is rotatably arranged in the slotted opening 211, and on the second cover plate 22, there is a rack 222 extending along a preset direction. The rack 222 meshes with the gear 212.

[0051] Here, arranging the gear 212 in the slotted opening 211 is conducive to forming an avoidance space for the gear 212 and the rack 222. Thus, the structure is reasonable and easy to arrange. Moreover, by setting the gear 212 and the rack 222, the second cover plate 22 can slide relative to the first cover plate 21 on the top of the base 1, which brings convenience to the protection of the centrifuge cup.

[0052] Specifically, in this embodiment, as a preferred implementation form, the slotted opening 211 arranged on the side of the first cover plate 21 facing the second cover plate 22 and extending along a preset direction, the gear 212 rotatably arranged in the slotted opening 211, and the rack 222 arranged on the second cover plate 22 and extending along a preset direction are all two arranged at intervals perpendicular to the preset direction. Here, arranging the slotted opening 211, the gear 212, and the rack 222 at intervals perpendicular to the preset direction as two can ensure the overall stability of the device.

[0053] During specific implementation, the second cover plate 22 can slide only through the connection between the guiding groove 221 and the guiding block 11, or move away from or close to the first cover plate 21 through the meshing between the gear 212 and the rack 222. Additionally, to further ensure the stable sliding of the second cover plate 22, the above two methods can also be combined.

[0054] In addition, in this embodiment, as a preferred implementation form, as Figure 1 shown, both the first cover plate 21 and the second cover plate 22 are provided with arc-shaped notches 23, and when the second cover plate 22 is docked with the first cover plate 21, a placement groove 24 for placing the centrifuge cup can be formed at the two arc-shaped notches 23.

[0055] The advantage of such a setting is that when the first cover plate 21 and the second cover plate 22 are butted, a placement groove 24 can be formed, which is convenient for placing the centrifuge cup. In specific implementation, it is beneficial to extend the liquid inlet pipe of the centrifuge cup out from the notch position and connect it to the blood collection tube and the blood transfusion tube.

[0056] In addition, in this embodiment, as a preferred implementation form, as Figure 7 shown, at least one clamping plate 31 and the base 1 are provided with an elastic member 311, and the elastic member 311 is used to provide a force for the clamping plate 31 to turn towards the cover plate assembly 2. Here, the setting of the elastic member 311 can provide assistance when the clamping plate 31 turns towards the cover plate assembly 2.

[0057] At the same time, in this embodiment, as a preferred implementation form, as Figure 1 and Figure 7 shown, the clamping plate 31 is arranged on the base 1 through a rotating shaft 34. In specific implementation, a connecting platform 12 is arranged on the base 1, the rotating shaft 34 is passed through the connecting platform 12, and the clamping plate 31 is sleeved on the rotating shaft 34. Thus, it is beneficial to improve the stable connection of the clamping plate 31, and it can also make the clamping plate 31 rotate more conveniently.

[0058] Furthermore, in this embodiment, as a preferred implementation form, as Figure 7 shown, the elastic member 311 adopts a torsion spring sleeved on the rotating shaft 34. One end of the torsion spring abuts against the rotating shaft 34, and the other end of the torsion spring abuts against the clamping plate 31. Thus, it is beneficial to reduce costs, and the torsion spring also has stable elasticity and has a certain pressing effect on the clamping plate 31, thereby improving the connection stability between the clamping plate 31 and the cover plate assembly 2.

[0059] And, in this embodiment, as a preferred implementation form, as Figure 8 shown, a support bracket 4 for at least supporting the bottom of the centrifuge cup is arranged in the base 1. The setting of the support bracket 4 can support the centrifuge cup and ensure that the centrifuge cup remains stable in the protection device.

[0060] For the plasma separator protection device of this embodiment, during specific implementation, turn the clamping plate 31 away from the cover plate assembly 2 to release the locking of the cover plate assembly 2, pull the second cover plate 22 away from the first cover plate 21 to form an avoidance space for placing the centrifuge cup, place the centrifuge cup in the carrier 4, and dock the second cover plate 22 with the first cover plate 21 through the engagement between the gear 212 and the rack 222, or through the connection between the guide block 11 and the guide groove 221, or through the combination of the two methods. Subsequently, turn the clamping plate 31 towards the direction close to the cover plate assembly 2, and the clamping protrusion 32 is clamped in the clamping groove 33 to lock the cover plate assembly 2 and protect the centrifuge cup, effectively avoiding the influence of external interference on the centrifuge cup and improving the use safety of the device.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A plasma separator protection device, characterized in that: It includes a cylindrical base (1), a cover plate assembly (2) provided on the top of the base (1), and a locking assembly (3) provided on the top of the base (1) for locking the cover plate assembly (2); The cover plate assembly (2) includes a first cover plate (21) and a second cover plate (22) sequentially arranged on the top of the base (1) along a preset direction, and at least the second cover plate (22) is slidably arranged on the base (1) along the preset direction; The locking assembly (3) includes a clamping plate (31) rotatably arranged on the top of the base (1), and a clamping protrusion (32) provided on the clamping plate (31), and clamping grooves (33) are provided on both the first cover plate (21) and the second cover plate (22), and the clamping protrusions (32) are multiple and correspond to each of the clamping grooves (33) one by one; When the second cover plate (22) moves along the preset direction to dock with the first cover plate (21), it rotates with the clamping plate (31) and presses against the cover plate assembly (2), and each of the clamping protrusions (32) can be respectively clamped in the corresponding clamping groove (33) to form a lock on the cover plate assembly (2).

2. The plasma separator protection device according to claim 1, characterized in that: The second cover plate (22) is provided with a guiding groove (221) extending along the preset direction, and a guiding block (11) adapted to the guiding groove (221) is provided on the top of the base (1), and the second cover plate (22) is slidably arranged on the guiding block (11) through the guiding groove (221).

3. The plasma separator protection device according to claim 2, characterized in that: The guiding groove (221) adopts a dovetail groove.

4. The plasma separator protection device according to claim 1, characterized in that: A slot (211) extending along the preset direction is provided on one side of the first cover plate (21) facing the second cover plate (22), a gear (212) is rotatably arranged in the slot (211), and a rack (222) extending along the preset direction is provided on the second cover plate (22), and the rack (222) meshes with the gear (212).

5. The plasma separator protection device according to claim 4, characterized in that: The slot (211) extending along the preset direction and arranged on one side of the first cover plate (21) facing the second cover plate (22), the gear (212) rotatably arranged in the slot (211), and the rack (222) extending along the preset direction and arranged on the second cover plate (22) are all two arranged at intervals perpendicular to the preset direction.

6. The plasma separator protection device according to claim 1, characterized in that: Arc-shaped notches (23) are provided on both the first cover plate (21) and the second cover plate (22), and when the second cover plate (22) is docked with the first cover plate (21), a placement groove (24) for placing a centrifuge cup can be formed at the two arc-shaped notches (23).

7. The plasma separator protection device according to claim 1, wherein: At least one elastic member (311) is provided between the clamping plate (31) and the base (1), and the elastic member (311) is used to provide a force for the clamping plate (31) to turn towards the cover plate assembly (2).

8. The plasma separator protection device according to claim 7, wherein: The clamping plate (31) is arranged on the base (1) through a rotating shaft (34).

9. The plasma separator protection device according to claim 8, wherein: The elastic member (311) is a torsion spring sleeved on the rotating shaft (34), one end of the torsion spring abuts against the rotating shaft (34), and the other end of the torsion spring abuts against the clamping plate (31).

10. The plasma separator protection device according to claim 6, wherein: A carrier (4) for at least supporting the bottom of the centrifuge cup is provided in the base (1).

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