Concentrated frozen platelet preservation mechanism

Abstract

The utility model relates to the technical field of medical equipment, and discloses a concentrated frozen platelet preservation mechanism which comprises a freezing box body, a quick freezing mechanism is fixedly connected to the upper layer in the freezing box body, the quick freezing mechanism comprises a quick freezing disc, a pressing and freezing assembly is fixedly connected to the outer side of the quick freezing disc, and the pressing and freezing assembly comprises a quick freezing pipe. A quick-freezing pressing plate is slidably connected to the inner side of the quick-freezing pipe, and a quick-freezing pressing rod is fixedly connected to the top of the quick-freezing pressing plate. According to the platelet freezing device, in the aspect of platelet freezing, a driving motor is started, a quick-freezing pressing plate is moved away through bevel gear transmission and the like to facilitate bag placement, then pressing is conducted downwards to achieve quick flattening and efficient freezing, the platelet storage quality is improved, in the aspect of observation window cleaning, a cleaning motor is started, a connecting rod is driven to enable a cleaning scraping strip to rotate, frost is automatically removed, and the platelet freezing efficiency is improved. It is ensured that medical staff can clearly observe the platelet condition in the box, and effective monitoring of the platelet preservation condition is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field especially relates to concentrated frozen platelet preservation mechanism. BACKGROUND

[0002] Platelet is the small piece of cytoplasm that the bone marrow mature megakaryocyte cytoplasm splits off, and it is the discoid of two face microconvex. It is vital in human body, and the main function is blood clotting and hemostasis, and the broken blood vessel is repaired. In the medical field, the reasonable storage and supply of platelet are of great significance to the treatment of patients, and its preservation faces many challenges, and it is the focus of blood transfusion medicine,

[0003] The reason why platelet needs to be frozen and concentrated before long-term preservation is that conventional liquid preservation can only maintain for about 5 days, and it is easy to deteriorate due to bacterial growth and other factors. The freezing and concentrating technology can extend the preservation period of platelets to several months and greatly improve the preservation quality. The preservation mechanism mainly consists of freezing equipment, concentrating device and storage container. The freezing equipment uses compression refrigeration principle to quickly cool the platelet sample to extremely low temperature. The concentrating device realizes platelet concentration by means of centrifugation. The storage container has good low-temperature resistance and sealing performance to ensure the safe storage of platelets. The overall process is blood collection, centrifugal platelet concentration, low-temperature freezing treatment and long-term storage in special container.

[0004] In the prior art, the traditional freezing box has many disadvantages. The short platelets stay in the transition temperature interval for a long time, the risk of damage increases due to temperature change, the activity decreases during freezing, the blood clotting function is affected during clinical application, which will endanger the treatment effect and life health of patients. And the cooling speed of each part of the platelet bag is not consistent, local temperature difference occurs, which leads to poor freezing effect of part of the platelets. Therefore, the concentrated frozen platelet preservation mechanism is proposed to solve the above problems. Utility model content

[0005] In order to make up for the above shortcomings, the concentrated frozen platelet preservation mechanism is provided to improve the problem that the platelets stay in the transition temperature interval for a long time, are easy to be damaged, have low activity, and the cooling of each part of the platelet bag is uneven and the freezing effect of part of the platelets is poor in the traditional freezing box of prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The concentrated frozen platelet preservation mechanism comprises a freezing box body, characterized in that: a quick freezing mechanism is fixedly connected to the upper layer in the inside of the freezing box body, the quick freezing mechanism comprises a quick freezing disc, a compression freezing assembly is fixedly connected to the outer side of the quick freezing disc, the compression freezing assembly comprises a quick freezing pipe, a quick freezing pressing plate is slidably connected to the inner side of the quick freezing pipe, and a quick freezing pressing rod is fixedly connected to the top of the quick freezing pressing plate.

[0008] As a further description of the above technical solutions:

[0009] The lower layer of the freezing box body is fixedly connected with a window surface cleaning mechanism, the window surface cleaning mechanism comprises an observation window, the outer side of the observation window is fixedly connected to the inner side of the lower layer of the freezing box body, the outer side of the observation window is slidingly connected with a cleaning scraping strip, and the inner side of the lower layer of the freezing box body is fixedly connected with a cleaning driving assembly.

[0010] As a further description of the above technical solutions:

[0011] The quick-freezing disc is rotationally connected at the upper and lower layer partition of the freezing box body, the outer side of the quick-freezing pressing rod is slidingly connected with a quick-freezing sliding sleeve, the bottom of the quick-freezing pipe is fixedly connected to the bottom of the upper layer of the freezing box body, the quick-freezing disc is rotationally connected to the bottom of the quick-freezing pipe, the outer side of the quick-freezing pressing rod is sleeved with a quick-freezing buffer spring, one end of the quick-freezing buffer spring is fixedly connected to the top of the quick-freezing pressing plate, and the other end of the quick-freezing buffer spring is fixedly connected to the bottom of the quick-freezing sliding sleeve.

[0012] As a further description of the above technical solutions:

[0013] The outer side of the quick-freezing sliding sleeve is fixedly connected with a connecting rod, the upper layer of the freezing box body is fixedly connected with a rotary pressing-down assembly, the rotary pressing-down assembly comprises a driving motor, the driving motor is fixed to the inner wall of the upper layer of the freezing box body, the output end of the driving motor is fixedly connected with a bevel gear two on the outer side, one end of the connecting rod away from the quick-freezing sliding sleeve is fixedly connected with a lifting sliding sleeve, and the inner side of the lifting sliding sleeve is slidingly connected with a lifting sliding rod.

[0014] As a further description of the above technical solutions:

[0015] The inner side of the lifting sliding rod is rotationally connected with a lifting lead screw, the bottom of the lifting lead screw is fixedly connected with a bevel gear one, the bevel gear one and the bevel gear two are meshingly connected, the bottom of the lifting sliding sleeve is fixedly connected with a lifting sliding rod, the lifting sliding rod and the lifting lead screw are threadedly connected with each other, the outer side of the lifting sliding rod is provided with an L-shaped quick-freezing sliding groove, the outer side of the lifting sliding rod is slidingly connected to the inner side of the L-shaped quick-freezing sliding groove, and the outer side of the lifting sliding rod is fixedly connected to the outer side of the quick-freezing pipe.

[0016] As a further description of the above technical solutions:

[0017] The outer side of the freezing box body is fixedly connected with a hinge, and the outer side of the hinge is fixedly connected with a freezing box cover.

[0018] As a further description of the above technical solutions:

[0019] The cleaning drive assembly comprises a cleaning motor, the outer side of the cleaning motor is fixedly connected to the inner side of the lower layer of the refrigeration cabinet, the output end of the cleaning motor is fixedly connected with a cleaning connecting rod one, the end of the cleaning connecting rod one away from the cleaning motor is rotatably connected with a cleaning connecting rod two, the end of the cleaning connecting rod two away from the cleaning connecting rod one is rotatably connected to the outer side of the middle section of the cleaning scraping strip, the inner side of the lower layer of the refrigeration cabinet is fixedly connected with a fixed rotating shaft, and the outer side of the fixed rotating shaft is rotatably connected to one end of the cleaning scraping strip.

[0020] Further description of the above technical solution:

[0021] The lower layer of the refrigeration cabinet is provided with a sliding groove in the bottom, and the refrigeration cabinet is provided with a refrigeration bin which is slidably connected to the outer side of the sliding groove.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. In the utility model, the driving motor is started, the lifting lead screw is rotated through the bevel gear transmission, the lifting sliding rod is driven to move along the L-shaped quick-freezing sliding groove, the lifting sliding sleeve and the connecting rod are actuated, the quick-freezing pressing plate is first separated from the quick-freezing tube area so as to place the platelet bag, and then the quick-freezing pressing plate is pressed downward through reverse operation, so that the platelet bag is quickly flattened and efficiently frozen, the contact area of the platelet bag and the quick-freezing pressing plate is increased, heat is uniformly and quickly taken away, the damage risk of the platelet in the transition temperature interval is reduced, and the quality of the platelet preservation is improved.

[0024] 2. In the utility model, when the observation window is covered with frost due to the entry of external gas, the cleaning motor is started, the cleaning connecting rod one is rotated under the drive of the motor, the cleaning connecting rod two is further driven to rotate, and the cleaning scraping strip is rotated around the fixed rotating shaft, so that the effect of automatically scraping off the frost on the observation window is realized, so that the medical staff can continuously and clearly observe the quantity and state of the platelet bags in the refrigeration cabinet, the work is not affected due to the frost shielding, and the effective monitoring of the platelet preservation condition is ensured. DRAWINGS

[0025] Figure 1 The utility model provides a three -dimensional schematic view of the concentrated ice frozen platelet preservation mechanism;

[0026] Figure 2 The utility model provides the structure schematic view of the quick-freezing pressing plate of the concentrated ice frozen platelet preservation mechanism;

[0027] Figure 3 The utility model provides the structure schematic view of the L-shaped quick-freezing sliding groove of the concentrated ice frozen platelet preservation mechanism;

[0028] Figure 4 The utility model provides the structure schematic view of the lifting lead screw of the concentrated ice frozen platelet preservation mechanism;

[0029] Figure 5 This is a schematic diagram of the structure of the freezing chamber of the concentrated frozen platelet preservation mechanism proposed in this utility model;

[0030] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Freezer body; 2. Hinge; 3. Freezer lid; 4. Quick-freezing tube; 5. Lifting sliding rod; 6. Drive motor; 7. Bevel gear one; 8. Bevel gear two; 9. Lifting screw; 10. Lifting sliding rod; 11. Lifting sliding sleeve; 12. L-shaped quick-freezing chute; 13. Connecting rod; 14. Quick-freezing sliding sleeve; 15. Quick-freezing pressure plate; 16. Quick-freezing pressure rod; 17. Quick-freezing buffer spring; 18. Observation window; 19. Freezer compartment; 20. Cleaning motor; 21. Cleaning connecting rod one; 22. Cleaning connecting rod two; 23. Fixed rotating shaft; 24. Cleaning scraper; 25. Quick-freezing tray. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1 to 4 An embodiment of this utility model provides a concentrated frozen platelet preservation mechanism, including a freezing box 1, which is the main outer shell of the preservation mechanism. A quick-freezing mechanism is fixedly connected to the upper part of the inside of the freezing box 1, and a window cleaning mechanism is fixedly connected to the lower part of the freezing box 1.

[0035] The quick-freezing mechanism includes a quick-freezing tray 25, which can hold platelet bags and freeze them in conjunction with the compression freezing component. The quick-freezing tray 25 is rotatably connected to the upper and lower partitions of the freezing chamber 1. The compression freezing component is fixedly connected to the outside of the quick-freezing tray 25, and the upper layer of the freezing chamber 1 is fixedly connected to the rotating pressing component.

[0036] The freezing assembly includes a quick-freezing tube 4 for holding platelet bags and guiding the downward pressing of the quick-freezing pressure plate 15. The bottom of the quick-freezing tube 4 is fixedly connected to the bottom of the upper layer of the freezing chamber 1. The quick-freezing tray 25 is rotatably connected to the bottom of the quick-freezing tube 4. The quick-freezing pressure plate 15 is slidably connected to the inner side of the quick-freezing tube 4. The quick-freezing pressure plate 15 has strong thermal conductivity and anti-adhesion properties, and can apply pressure evenly, so that the platelet bags can fully contact the quick-freezing pressure plate 15, thereby more effectively removing heat and achieving rapid cooling. The top of the quick-freezing pressure plate 15 is fixedly connected to a quick-freezing rod 16, which can provide guidance and transmit pressure. The outer side of the quick-freezing rod 16 is slidably connected to a quick-freezing sleeve 14, which can drive the quick-freezing pressure plate 15 to complete the pressing and lifting operations.

[0037] A quick-freezing buffer spring 17 is fitted on the outer side of the quick-freezing pressure rod 16. This spring acts as a buffer during the downward pressing of the quick-freezing pressure plate 15, preventing excessive impact on the platelet bags and protecting them from damage. Simultaneously, when the quick-freezing pressure plate 15 is lifted, the quick-freezing buffer spring 17 provides a certain elastic force to help it quickly return to its original position. One end of the quick-freezing buffer spring 17 is fixedly connected to the top of the quick-freezing pressure plate 15, and the other end is fixedly connected to the bottom of the quick-freezing sliding sleeve 14.

[0038] A connecting rod 13 is fixedly connected to the outer side of the quick-freezing sliding sleeve 14. The rotating pressing assembly includes a drive motor 6, which is the power source of the entire rotating pressing assembly. The drive motor 6 is fixed to the upper inner wall of the freezer body 1. A bevel gear 8 is fixedly connected to the outer side of the output end of the drive motor 6. A lifting sliding sleeve 11 is fixedly connected to the end of the connecting rod 13 away from the quick-freezing sliding sleeve 14. The lifting sliding sleeve 11 can connect to components to realize lifting and movement, and drive the pressure plate operation. A lifting sliding rod 5 is slidably connected to the inner side of the lifting sliding sleeve 11, and the lifting sliding rod 5 provides sliding guidance.

[0039] The inner side of the lifting sliding rod 5 is rotatably connected to the lifting screw 9, which can transmit force and drive the lifting sliding rod 10 to move up and down. The bottom of the lifting screw 9 is fixedly connected to the bevel gear 7, which meshes with the bevel gear 8. The bottom of the lifting sleeve 11 is fixedly connected to the lifting rod 10, which can transmit force to the lifting sleeve 11 and drive it to move. The lifting rod 10 and the lifting screw 9 are threaded together. The outer side of the lifting sliding rod 5 is provided with an L-shaped quick-freezing groove 12, which is used to limit the movement range of the lifting rod 10 and the lifting sleeve 11 so that they move according to the required path. The outer side of the lifting rod 10 is slidably connected to the inner side of the L-shaped quick-freezing groove 12, and the outer side of the lifting sliding rod 5 is fixedly connected to the outer side of the quick-freezing tube 4.

[0040] A hinge 2 is fixedly connected to the outside of the freezer body 1, and a freezer lid 3 is fixedly connected to the outside of the hinge 2. The edge of the freezer lid 3 has a sealing strip, which can fit tightly with the edge of the opening of the freezer body 1 to form a good sealing effect, prevent cold air from leaking into the freezer and hot air from entering, and maintain the low temperature environment inside the freezer.

[0041] The bottom of the lower layer of the cryogenic chamber 1 is provided with a sliding groove, and a cryogenic chamber 19 is slidably connected to the outside of the sliding groove of the cryogenic chamber 1. The cryogenic chamber 19 is convenient for medical staff to directly pull open to take out or put in platelet packs.

[0042] Reference Figure 1 , Figure 5 and Figure 6 The window cleaning mechanism includes an observation window 18, which is an important component for medical staff to observe the number and condition of platelet clusters inside the cryo-case 1. The outer side of the observation window 18 is fixedly connected to the lower inner side of the cryo-case 1. A cleaning scraper 24 is slidably connected to the outer side of the observation window 18. The cleaning scraper 24 can closely fit the surface of the observation window 18 and effectively scrape off the frost on the surface of the observation window 18, restoring the light transmittance of the observation window 18. A cleaning drive assembly is fixedly connected to the lower inner side of the cryo-case 1.

[0043] The cleaning drive assembly includes a cleaning motor 20, which is the power source for the window cleaning mechanism. The outer side of the cleaning motor 20 is fixedly connected to the inner side of the lower layer of the freezer body 1. A first cleaning link 21 is fixedly connected to the outer side of the output end of the cleaning motor 20. A second cleaning link 22 is rotatably connected to the end of the first cleaning link 21 away from the cleaning motor 20. The end of the second cleaning link 22 away from the first cleaning link 21 is rotatably connected to the outer side of the middle section of the cleaning scraper 24. A fixed rotating shaft 23 is fixedly connected to the inner side of the lower layer of the freezer body 1. The fixed rotating shaft 23 provides a rotation fulcrum for the swing of the cleaning scraper 24. The outer side of the fixed rotating shaft 23 is rotatably connected to one end of the cleaning scraper 24.

[0044] Working principle: After the blood is centrifuged and concentrated to form platelets, the freezer lid 3 is opened through the hinge 2 on the outside of the freezer body 1 to prepare for the placement of platelet packs.

[0045] Start the drive motor 6, the motor drives the second bevel gear 8 to rotate, the second bevel gear 8 drives the first bevel gear 7 to rotate, the first bevel gear 7 drives the lifting screw 9 to rotate inside the lifting sliding rod 5, the lifting sliding rod 10 which is threaded to the lifting screw 9 moves along the L-shaped quick-freezing groove 12 on the outside of the lifting sliding rod 5, drives the lifting sleeve 11 to move upward, and then causes the connecting rod 13 to move upward. When the lifting sliding rod 10 moves to the end of the long side of the L-shaped quick-freezing groove 12, as the lifting screw 9 continues to rotate, the lifting sliding rod 10 begins to rotate laterally, driving the lifting sleeve 11 and the connecting rod 13 to rotate laterally, so that the connecting rod 13 drives the quick-freezing pressure plate 15 away from the quick-freezing tube 4 area. At this time, the staff can put the platelet bag into the quick-freezing tray 25 in the quick-freezing tube 4;

[0046] After the platelet packs are placed, the drive motor 6 is started again, causing the lifting screw 9 to rotate in the opposite direction. The connecting rod 13 returns to the top of the quick-freezing tube 4 and begins to press down, causing the quick-freezing sliding sleeve 14 to descend. The quick-freezing sliding sleeve 14 presses down the quick-freezing buffer spring 17, which transmits the downward pressure to the quick-freezing pressure plate 15, causing the quick-freezing pressure plate 15 to press down along the quick-freezing tube 4 and flatten the platelet packs. The flattened platelet packs have a larger contact area with the quick-freezing pressure plate 15, which can more evenly and quickly remove heat, allowing the platelet packs to cool down quickly to the temperature required for frozen storage.

[0047] Once the platelet bags are cooled to a suitable temperature, the quick-freezing tray 25 automatically opens, allowing the platelet bags to slide into the freezer compartment 19 for long-term preservation.

[0048] Whenever medical staff open the cryo-compression chamber 19 to remove platelet packets, external air enters the lower layer of the cryo-compression chamber 1, causing frost to gradually form on the lower layer. This results in the observation window 18 being covered by frost, making it impossible for medical staff to observe and record the number and condition of the platelet packets inside the cryo-compression chamber 1. At this time, the cleaning motor 20 is activated, which drives the first cleaning linkage 21 to rotate. The first cleaning linkage 21 drives the second cleaning linkage 22 to rotate, which in turn drives the cleaning scraper 24 to rotate around the fixed rotating shaft 23. This allows the cleaning scraper 24 to scrape away the frost on the surface of the observation window 18, restoring the observation effect of the observation window 18.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concentrated frozen platelet storage mechanism, comprising a freezing chamber (1), characterized in that: The upper part of the freezer body (1) is fixedly connected to a quick-freezing mechanism. The quick-freezing mechanism includes a quick-freezing tray (25). A pressure-freezing assembly is fixedly connected to the outside of the quick-freezing tray (25). The pressure-freezing assembly includes a quick-freezing tube (4). A quick-freezing pressure plate (15) is slidably connected to the inside of the quick-freezing tube (4). A quick-freezing pressure rod (16) is fixedly connected to the top of the quick-freezing pressure plate (15).

2. The concentrated frozen platelet preservation mechanism according to claim 1, characterized in that: A window cleaning mechanism is fixedly connected to the lower layer of the freezer body (1). The window cleaning mechanism includes an observation window (18). The outer side of the observation window (18) is fixedly connected to the inner side of the lower layer of the freezer body (1). A cleaning scraper (24) is slidably connected to the outer side of the observation window (18). A cleaning drive assembly is fixedly connected to the inner side of the lower layer of the freezer body (1).

3. The concentrated frozen platelet preservation mechanism according to claim 1, characterized in that: The quick-freezing tray (25) is rotatably connected to the upper and lower partitions of the freezer body (1). The quick-freezing pressure rod (16) is slidably connected to the outer side of the quick-freezing sleeve (14). The bottom of the quick-freezing tube (4) is fixedly connected to the bottom of the upper layer of the freezer body (1). The quick-freezing tray (25) is rotatably connected to the bottom of the quick-freezing tube (4). The quick-freezing pressure rod (16) is fitted with a quick-freezing buffer spring (17). One end of the quick-freezing buffer spring (17) is fixedly connected to the top of the quick-freezing pressure plate (15), and the other end of the quick-freezing buffer spring (17) is fixedly connected to the bottom of the quick-freezing sleeve (14).

4. The concentrated frozen platelet preservation mechanism according to claim 3, characterized in that: A connecting rod (13) is fixedly connected to the outer side of the quick-freezing slide sleeve (14). A rotating pressing assembly is fixedly connected to the upper layer of the freezer body (1). The rotating pressing assembly includes a drive motor (6). The drive motor (6) is fixed to the inner wall of the upper layer of the freezer body (1). A bevel gear (8) is fixedly connected to the outer side of the output end of the drive motor (6). A lifting slide sleeve (11) is fixedly connected to the end of the connecting rod (13) away from the quick-freezing slide sleeve (14). A lifting sliding rod (5) is slidably connected to the inner side of the lifting slide sleeve (11).

5. The concentrated frozen platelet preservation mechanism according to claim 4, characterized in that: The inner side of the lifting sliding rod (5) is rotatably connected to the lifting screw (9), and the bottom of the lifting screw (9) is fixedly connected to the first bevel gear (7). The first bevel gear (7) and the second bevel gear (8) are meshed with each other. The bottom of the lifting sleeve (11) is fixedly connected to the lifting slide rod (10). The lifting slide rod (10) and the lifting screw (9) are threaded together. The outer side of the lifting sliding rod (5) is provided with an L-shaped quick-freezing groove (12). The outer side of the lifting slide rod (10) is slidably connected to the inner side of the L-shaped quick-freezing groove (12). The outer side of the lifting sliding rod (5) is fixedly connected to the outer side of the quick-freezing tube (4).

6. The concentrated frozen platelet preservation mechanism according to claim 1, characterized in that: A hinge (2) is fixedly connected to the outside of the freezer body (1), and a freezer lid (3) is fixedly connected to the outside of the hinge (2).

7. The concentrated frozen platelet preservation mechanism according to claim 2, characterized in that: The cleaning drive assembly includes a cleaning motor (20), the outer side of which is fixedly connected to the lower inner side of the freezer body (1). A first cleaning link (21) is fixedly connected to the outer side of the output end of the cleaning motor (20). A second cleaning link (22) is rotatably connected to the end of the first cleaning link (21) away from the cleaning motor (20). The end of the second cleaning link (22) away from the first cleaning link (21) is rotatably connected to the outer side of the middle section of the cleaning scraper (24). A fixed rotating shaft (23) is fixedly connected to the lower inner side of the freezer body (1). The outer side of the fixed rotating shaft (23) is rotatably connected to one end of the cleaning scraper (24).

8. The concentrated frozen platelet preservation mechanism according to claim 1, characterized in that: The bottom of the freezer body (1) is provided with a sliding groove, and a freezer compartment (19) is slidably connected to the outside of the sliding groove of the freezer body (1).

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