Blood storage device for medical examination
By combining cooling equipment and a pushing mechanism in the blood storage device, low-temperature protection and anti-sticking/scraping of platelets are achieved, solving the problems of platelet coagulation and sticking to the bottom, and improving the preservation quality and sampling convenience of blood samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- XUZHOU JIAKAI MEDICAL TECH CO LTD
- Filing Date
- 2026-01-26
- Publication Date
- 2026-04-17
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing blood storage devices are inadequate in preventing platelet aggregation and avoiding blood bags from sticking to the bottom. They cannot precisely control temperature and lack mechanisms to promote blood flow, resulting in decreased blood sample quality and difficulties in sampling.
A blood storage device was designed, comprising a cooling device, an L-shaped nozzle holder, a pushing mechanism, and an anti-stick scraper. The cooling device provides a suitable low-temperature environment, the pushing mechanism causes the swing cabinet to swing, and the anti-stick scraper prevents the blood bags from sticking to the bottom of the cabinet.
It effectively prevents platelet aggregation and blood bags from sticking to the bottom, ensuring the quality of blood samples, simplifying the sampling process, and improving the accuracy of test results.
Smart Images

Figure CN121869489A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical technology, and in particular to a blood storage device for medical testing. Background Technology
[0002] In the field of medical testing, the proper storage of blood samples is a crucial step in ensuring accurate and reliable test results. Blood contains a variety of components, among which the state of platelets is of great significance for the diagnosis and monitoring of many diseases. At the same time, the integrity of blood samples during storage, including avoiding situations such as blood bags sticking to the bottom of the storage device, directly affects the smooth progress of subsequent testing operations and the accuracy of test data.
[0003] Currently, there are various types of blood storage devices on the market, but most of them have significant shortcomings in preventing platelet coagulation and avoiding blood bags sticking to the bottom. Existing blood storage devices have limitations in temperature regulation. Some devices can only provide a general low-temperature environment and cannot accurately control the temperature within the specific range suitable for platelet storage. Moreover, most traditional blood storage devices simply place blood samples statically in a low-temperature environment without taking into account the characteristic that platelets are prone to aggregation and coagulation when static.
[0004] On the other hand, traditional blood storage devices usually place blood bags flat in a fixed position, and the blood bags and the bottom of the device remain relatively still for a long time. In this static environment, the components in the blood will gradually settle, and the part of the blood bag in contact with the bottom of the device is prone to forming an adhesive layer, causing the blood bag to stick to the bottom.
[0005] Finally, due to the lack of a mechanism to promote blood flow, the adhesion layer will continue to thicken, which will not only affect the quality of the blood sample, but also make it difficult to remove the blood bag later, easily damage the bag, and cause blood leakage. Summary of the Invention
[0006] The purpose of this invention is to solve the problem of blood coagulation during storage in existing technologies, and to propose a blood storage device for medical testing. To achieve the above objectives, the present invention adopts the following technical solution: A blood storage device for medical testing includes a storage cabinet with a lower storage space and an upper storage space inside. An L-shaped nozzle holder is mounted on the top of the storage cabinet, and a cooling device is installed on the side of the cabinet. The L-shaped nozzle holder and the cooling device are connected by a pipe. A pushing mechanism is installed at the bottom of the lower storage space, and a suspension rod is installed at the top of the lower storage space. Sliding seats are symmetrically slidably connected to the surface of the suspension rod. A swing cabinet is installed at the bottom of the two sliding seats, and the swing cabinet is located above the pushing mechanism, which is in contact with the bottom of the swing cabinet. Limit seats are fixedly connected to both sides of the suspension rod, and a return spring is installed between the sliding seats and the limit seats. Slide grooves are respectively formed at the top and bottom of the swing cabinet. An upper rod is fixedly connected to the bottom of the lower storage space, and a lower rod is installed at the top of the storage cabinet. Anti-stick scrapers are fixedly connected to one end of the upper and lower rods that passes through the slide grooves. A grid frame is installed on the inner wall of the upper storage space.
[0007] Preferably, the pushing mechanism includes a fixed frame, a motor is provided on the side of the fixed frame, a threaded rod is fixedly connected to the output end of the motor through the fixed frame, a movable seat is threadedly connected to the surface of the threaded rod, a pushing seat is provided on the top of the movable seat, and the pushing seat contacts the bottom of the swing cabinet and pushes it to swing.
[0008] Preferably, a limiting rod is provided on one side of the fixing frame, and the limiting rod is slidably connected to the threaded rod.
[0009] Preferably, side springs are provided on both sides of the swing cabinet, and the side springs are used to reset the swing cabinet.
[0010] Preferably, the front of the upper storage space is provided with a sliding door connected by a slide rail, the front of the storage cabinet is slidably connected with a storage drawer, the storage drawer is located between the lower storage space and the upper storage space, the front of the lower storage space is rotatably connected with a sealing door via a hinge, and the front of the sealing door is provided with a door handle.
[0011] Preferably, the storage cabinet is provided with a fixing member on its side, which is used to fix the position of the cooling equipment.
[0012] Preferably, the swing cabinet has ventilation holes on both sides for the circulation of cold air.
[0013] Preferably, the front of the swing cabinet is connected to a cabinet door via a hinge, and the front of the cabinet door is provided with a cabinet handle.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through the synergistic design of multiple aspects, platelet coagulation is effectively prevented during storage. On the one hand, the cooling equipment, in conjunction with the L-shaped nozzle frame and pipelines, can stably supply cold air to the lower and upper storage spaces within the storage cabinet, creating a suitable low-temperature environment for platelet storage. Temperature control slows down platelet activity and the coagulation process. On the other hand, the motor in the driving mechanism drives the threaded rod to rotate, causing the moving seat and the pushing seat to reciprocate linearly, pushing the bottom of the swing cabinet to swing. At the same time, the side springs and return springs assist the swing cabinet in resetting, enhancing the swing effect. During the swinging process, the anti-stick scraper moves relative to the swing cabinet, scraping the surface of the blood bags placed inside the swing cabinet to prevent blood from accumulating locally and forming a high-concentration area, thus avoiding platelet activation and coagulation due to changes in the local environment.
[0015] 2. By driving the swinging mechanism to swing the cabinet, the blood bags are constantly shaking inside the cabinet, changing the relative static state between the blood bags and the bottom of the cabinet. This reduces the contact time and contact area between the bottom of the bags and the cabinet surface, lowering the possibility of sticking. The scraping action of the anti-stick scraper during the swinging process can promptly destroy any adhesion points that may form, preventing the blood bags from sticking to the bottom of the cabinet. In addition, the low temperature environment maintained by the cooling equipment reduces the viscosity of the blood, further reducing the risk of the bags sticking to the bottom. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a blood storage device for medical testing proposed in this invention; Figure 2 This is a side view of the structure of a blood storage device for medical testing proposed in this invention; Figure 3 This is a side sectional view of a blood storage device for medical testing proposed in this invention; Figure 4 This is a front sectional view of a blood storage device for medical testing proposed in this invention; Figure 5 This is a top sectional view of a blood storage device for medical testing proposed in this invention; Figure 6 This invention provides a blood storage device for medical testing. Figure 3 Enlarged view of area A in the middle; Figure 7 This invention provides a blood storage device for medical testing. Figure 5 Enlarged view of area B in the middle; Figure 8 This invention provides a blood storage device for medical testing. Figure 5 Enlarged view of area C.
[0017] In the diagram: 1. Storage cabinet; 101. Lower storage space; 102. Upper storage space; 103. Sliding door; 104. Storage drawer; 105. Fixing component; 106. Sealed door; 107. Door handle; 2. L-shaped nozzle frame; 3. Cooling equipment; 4. Pushing mechanism; 401. Fixing frame; 402. Motor; 403. Threaded rod; 404. Moving seat; 405. Limiting rod; 406. Pushing seat; 5. Suspension rod frame; 6. Sliding seat; 7. Swinging cabinet body; 701. Vent hole; 702. Slide groove; 703. Cabinet door; 704. Cabinet handle; 8. Return spring; 9. Limiting seat; 10. Side spring; 11. Upper rod; 12. Lower rod; 13. Anti-stick scraper; 14. Grid frame. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0019] Example, refer to Figure 1-8A blood storage device for medical testing includes a storage cabinet 1, which has a lower storage space 101 and an upper storage space 102. An L-shaped spray nozzle frame 2 is installed on the top of the storage cabinet 1, and a cooling device 3 is installed on the side of the storage cabinet 1. The L-shaped spray nozzle frame 2 and the cooling device 3 are connected by a pipe. Cold air generated by the cooling device 3 can be transported to the L-shaped spray nozzle frame 2 through the pipe, and then sprayed by the L-shaped spray nozzle frame 2 onto the lower storage space 101 and the upper storage space 102 to provide a suitable low-temperature environment for the stored blood. A pushing mechanism 4 is provided at the bottom of the lower storage space 101, and a suspension rod 5 is provided at the top of the lower storage space 101. Sliding seats 6 are symmetrically slidably connected to the surface of the suspension rod 5. A swing cabinet 7 is provided at the bottom of the two sliding seats 6. The swing cabinet 7 is located above the pushing mechanism 4, and the pushing mechanism 4 is in contact with the bottom of the swing cabinet 7. When the pushing mechanism 4 is working, it can push the bottom of the swing cabinet 7, causing the swing cabinet 7 to swing. Limit seats 9 are fixedly connected to both sides of the suspension rod 5, and a return spring 8 is provided between the sliding seats 6 and the limit seats 9. When the swing cabinet 7 is pushed by the pushing mechanism 4 and swings, the return spring 8 assists the swing cabinet 7 to return to its original position, allowing it to continue swinging. The top and bottom of the swing cabinet 7 are respectively provided with sliding grooves 702. An upper rod 11 is fixedly connected to the bottom of the lower storage space 101, and a lower rod 12 is provided at the top of the storage cabinet 1. An anti-stick scraper 13 is fixedly connected to one end of the upper rod 11 and lower rod 12 that passes through the sliding grooves 702. During the swinging process of the swing cabinet 7, the anti-stick scraper 13 can move relative to the swing cabinet 7 to clean the items placed inside the swing cabinet 7. The surface of the blood bags is scraped to prevent them from sticking to the bottom, especially when storing platelets, which effectively prevents platelets from coagulating at the bottom of the bag. The inner wall of the upper storage space 102 is equipped with a grid rack 14, which can be used to place some blood testing-related auxiliary supplies or spare blood samples. A low-temperature environment is provided by the cooling device 3, the pushing mechanism 4 makes the swing cabinet 7 swing, and the return spring 8 assists in resetting. The anti-stick scraper 13 scrapes the blood bags, which effectively prevents platelets from coagulating and the bags from sticking to the bottom during storage.
[0020] The pushing mechanism 4 includes a fixed frame 401, a motor 402 is mounted on the side of the fixed frame 401, and a threaded rod 403 is fixedly connected to the output end of the motor 402 through the fixed frame 401. A movable seat 404 is threadedly connected to the surface of the threaded rod 403, and a pushing seat 406 is mounted on the top of the movable seat 404. When the motor 402 starts, it drives the threaded rod 403 to rotate. Since the threaded rod 403 is threadedly connected to the movable seat 404, the movable seat 404 will reciprocate linearly on the threaded rod 403, thereby driving the pushing seat 406 to reciprocate linearly. The pushing seat 406 contacts the bottom of the swing cabinet 7 and pushes it to swing, causing the swing cabinet 7 to swing. The motor 402 drives the threaded rod 403 to rotate, driving the movable seat 404 and the pushing seat 406 to reciprocate linearly, thereby pushing the swing cabinet 7 and causing the swing cabinet 7 to swing, which helps to prevent platelet coagulation and bag sticking to the bottom.
[0021] In the blood storage device for medical testing, a limiting rod 405 is provided on one side of the fixed frame 401. The limiting rod 405 is slidably connected to the threaded rod 403. When the motor 402 starts and drives the threaded rod 403 to start rotating, the moving seat 404 will tend to move on the threaded rod 403 due to the meshing of the threads. At this time, the limiting rod 405 plays a crucial role. It can effectively restrict the rotational freedom of the moving seat 404. Due to the constraint of the limiting rod 405, the moving seat 404 cannot rotate around the threaded rod 403, but can only make linear movements along the axial direction of the threaded rod 403. This stable linear movement allows the pusher 406 to push the bottom of the swing cabinet 7 with a smooth and continuous force. As a result, the swing cabinet 7 can achieve stable and regular swinging movements, providing a good storage environment for blood samples, which is conducive to preventing platelet coagulation to the greatest extent, and can also effectively prevent blood bags from sticking to the bottom, thus ensuring the quality of blood samples.
[0022] In the blood storage device for medical testing, side springs 10 are cleverly installed on both sides of the swing cabinet 7. When the pushing mechanism 4 pushes the bottom of the swing cabinet 7 to swing to one side, the side springs 10 will be compressed and deformed due to the pressure, storing some energy in the form of elastic potential energy. Once the pushing mechanism 4 stops pushing or changes direction to push to the other side, the previously compressed side springs 10 will quickly return to their original state. In this process, it will generate an elastic force opposite to the swing direction. This elastic force is like an invisible but powerful hand, helping the swing cabinet 7 to quickly and smoothly return to its original state. In this way, the swing cabinet 7 can continuously perform regular and stable swinging movements, greatly enhancing the swinging effect, effectively improving the blood flow, and thus helping to prevent platelets from clotting in the blood bag and also preventing the blood bag from sticking to the bottom.
[0023] The upper storage space 102 features a cleverly designed sliding door 103 on its front, connected by a sliding rail. This design allows the door to open and close smoothly, enabling operators to easily open the upper storage space 102 with a simple push or pull. This facilitates the placement of blood samples or related items on the internal grid shelf 14, or the retrieval of necessary items. A storage drawer 104 is also slidably connected to the front of the storage cabinet 1, positioned between the lower storage space 101 and the upper storage space 102. It can be used to store commonly used blood testing tools such as lancets, test tubes, and reagents, as well as small equipment such as thermometers and small centrifuge accessories. Its sliding design simplifies the storage and retrieval of items. Furthermore, the front of the lower storage space 101 is connected to a sealing door 106 via a hinge, and a door handle 107 is provided on the front of the sealing door 106. By holding the door handle 107, the operator can easily open and close the sealing door 106. The sealing door 106 has good sealing performance, which can effectively prevent the leakage of cold air in the lower storage space 101, maintain a suitable low temperature environment inside, provide stable preservation conditions for the stored blood, prevent platelets from coagulating due to environmental changes, and also prevent blood bags from sticking to the bottom, ensuring the quality of blood samples. The reasonable arrangement of the sliding door 103, storage drawer 104 and sealing door 106 takes into account both the convenience of taking out and putting in items and the airtightness of the space, providing a strong guarantee for the proper preservation of blood samples.
[0024] The storage cabinet 1 is equipped with a fixing component 105 on its side. When installing the cooling device 3, after placing it in a suitable position, the fixing component 105, such as bolts or clips, is used to securely connect the cooling device 3 to the side of the storage cabinet 1, fixing its position and preventing it from shaking or shifting during operation. This ensures that the cooling device 3 can stably deliver cold air into the storage cabinet 1, maintaining a low internal temperature environment and preventing platelet coagulation or bag sticking to the bottom due to temperature fluctuations. The fixing component 105 secures the cooling device 3, ensuring stable operation, maintaining a suitable low temperature environment, and preventing platelet coagulation and bag sticking to the bottom. The swing cabinet 7 has ventilation holes 701 on both sides. After the cold air generated by the cooling device 3 is transported to the storage cabinet 1 through the pipe, some of the cold air can enter the interior of the swing cabinet 7 through the ventilation holes 701, so that the blood in the swing cabinet 7 can be cooled evenly and maintain a suitable low temperature environment. This avoids platelet coagulation due to excessive local temperature and also helps to prevent blood bags from sticking to the bottom due to uneven temperature. The ventilation holes 701 facilitate the entry of cold air into the swing cabinet 7, so that the blood is cooled evenly and prevents platelet coagulation and bags from sticking to the bottom.
[0025] The swing cabinet 7 has a door 703 connected to its front side via a hinge. The front of the door 703 has a handle 704. When it is necessary to place or take out blood bags into the swing cabinet 7, the door 703 can be easily opened through the handle 704 to place or take out the blood bags into or out of the swing cabinet 7. After closing the door 703, the relative airtightness of the swing cabinet 7 can be ensured, reducing cold air leakage, maintaining a low internal temperature environment, and preventing platelets from coagulating or bags from sticking to the bottom due to environmental changes. The door 703 and the handle 704 facilitate the placement and removal of blood bags, ensure the airtightness of the swing cabinet 7, maintain a suitable environment, and prevent platelets from coagulating or bags from sticking to the bottom.
[0026] This invention involves carefully inspecting the outer casing of the blood storage device for medical testing to ensure there are no cracks, dents, or other damage, and that all components are tightly connected without any signs of looseness. The hinges and latches of the sealing door 106, sliding door 103, and cabinet door 703 are checked to ensure the doors can open and close normally and are well-sealed. All doors are opened, and the interior of the swing cabinet 7 is inspected to confirm that the blood placement rack is securely installed, without deformation, and can stably support the blood bags. The anti-stick scraper 13 is checked; it should be firmly connected to the swing cabinet 7, with a smooth surface and no sharp protrusions to avoid scratching the blood bags. The power is connected, and the device is turned on. Without placing any blood samples, the pushing mechanism 4 is started, and the smooth operation of the motor 402 and the absence of abnormal noise are observed. The smooth transmission of the threaded rod 403, moving seat 404, and pushing seat 406 is checked, and the swing cabinet 7 is checked to ensure it can perform the expected initial reciprocating swing, and that the swing amplitude and frequency are within a reasonable range. Simultaneously, the cooling device 3 is turned on, and the temperature display screen is checked to ensure it displays the temperature value correctly and that the temperature gradually decreases and stabilizes within a suitable range. The device is placed in a dry, well-ventilated location away from heat sources and strong electromagnetic interference. Ensure the ground is flat and the device is stable, preventing shaking from affecting the normal operation of the internal swaying mechanism. Open the sealing door 106 and cabinet door 703, and place the pre-treated blood bags stably on the blood storage rack inside the swaying cabinet 7. Ensure the blood bags are neatly arranged, avoiding squeezing or overlapping, and guarantee that each blood bag receives sufficient swaying motion and cooling. Start the pushing mechanism 4; the motor 402 drives the threaded rod 403 to rotate, causing the moving seat 404 and pushing seat 406 to reciprocate linearly, thus pushing the bottom of the swaying cabinet 7 to sway. Simultaneously, the side spring 10 and return spring 8 assist in the return of the swaying cabinet 7, enhancing the swaying effect. During the swaying process, the anti-stick scraper 13 moves relative to the swaying cabinet 7, scraping the surface of the blood bags. Check the smoothness and stability of the scraper 13's movement, ensuring it effectively breaks up any adhesion points that may form on the bottom of the blood bags, preventing them from sticking.
[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A blood storage device for medical testing, comprising a storage cabinet (1), wherein the storage cabinet (1) is provided with a lower storage space (101) and an upper storage space (102), characterized in that, The storage cabinet (1) is equipped with an L-shaped nozzle frame (2) on its top. A cooling device (3) is provided on the side of the storage cabinet (1). The L-shaped nozzle frame (2) and the cooling device (3) are connected by a pipe. A pushing mechanism (4) is provided at the bottom of the lower storage space (101). A suspension rod frame (5) is provided at the top of the lower storage space (101). Sliding seats (6) are symmetrically slidably connected to the surface of the suspension rod frame (5). A swing cabinet (7) is provided at the bottom of the two sliding seats (6). The swing cabinet (7) is located above the pushing mechanism (4). The pushing mechanism (4) and the swing cabinet (7) are connected by a sliding rod frame (6). The bottom of the swing cabinet (7) is in contact with each other. The two sides of the suspension rod (5) are fixedly connected to the limit seats (9). A return spring (8) is provided between the sliding seat (6) and the limit seat (9). The top and bottom of the swing cabinet (7) are respectively provided with sliding grooves (702). The bottom of the lower storage space (101) is fixedly connected to the upper rod (11). The top of the storage cabinet (1) is provided with the lower rod (12). The upper rod (11) and the lower rod (12) are fixedly connected to one end of the sliding groove (702) with an anti-stick scraper (13). The inner wall of the upper storage space (102) is provided with a grid frame (14).
2. The blood storage device for medical testing according to claim 1, characterized in that, The pushing mechanism (4) includes a fixed frame (401), a motor (402) is provided on the side of the fixed frame (401), a threaded rod (403) is fixedly connected to the output end of the motor (402) through the fixed frame (401), a movable seat (404) is connected to the surface of the threaded rod (403) by a thread, a pushing seat (406) is provided on the top of the movable seat (404), and the pushing seat (406) contacts the bottom of the swing cabinet (7) and pushes it to swing.
3. A blood storage device for medical testing according to claim 2, characterized in that, A limiting rod (405) is provided on one side of the fixing frame (401), and the limiting rod (405) is slidably connected to the threaded rod (403).
4. A blood storage device for medical testing according to claim 1, characterized in that, Side springs (10) are provided on both sides of the swing cabinet (7), and the side springs (10) are used to reset the swing cabinet (7).
5. A blood storage device for medical testing according to claim 1, characterized in that, The upper storage space (102) has a sliding door (103) connected to the front via a slide rail. The storage cabinet (1) has a storage drawer (104) slidably connected to the front. The storage drawer (104) is located between the lower storage space (101) and the upper storage space (102). The lower storage space (101) has a sealing door (106) rotatably connected to the front via a hinge. The sealing door (106) has a door handle (107) on its front.
6. A blood storage device for medical testing according to claim 1, characterized in that, The storage cabinet (1) is provided with a fastener (105) on its side, which is used to fix the position of the cooling equipment (3).
7. A blood storage device for medical testing according to claim 1, characterized in that, The swing cabinet (7) has ventilation holes (701) on both sides.
8. A blood storage device for medical testing according to claim 1, characterized in that, The front of the swing cabinet (7) is connected to a cabinet door (703) by a hinge, and a cabinet handle (704) is provided on the front of the cabinet door (703).