Disposable plasma separator with flow regulation
By introducing a valve seat, valve plate, and valve stem assembly into the plasma separator for flow regulation, and combining it with an anti-slip rubber sleeve and clamping structure, the problem of non-adjustable flow rate in traditional plasma separators is solved, improving adaptability and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGYUAN TECH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional disposable plasma separators are not convenient for adjusting the flow rate according to actual needs, which reduces their adaptability.
A plasma separator with flow regulation function was designed. The flow is regulated by setting a valve seat, valve plate and valve stem assembly in the connecting seat. Anti-slip rubber sleeve and anti-slip protrusion are set on the outer wall of the separator body to increase grip stability. At the same time, a clamping seat, threaded rod and clamping block are set in the connecting hose to stabilize the tube body installation.
It enables the function of adjusting the flow rate according to actual needs, improves the adaptability and stability of the separator, and ensures the stability of the pipe installation and prevents it from easily detaching.
Smart Images

Figure CN224331296U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of disposable plasma separator technology, specifically a disposable plasma separator with flow regulation. Background Technology
[0002] A disposable plasma separator is a medical device used to separate plasma from blood. It is commonly used in medical procedures such as blood transfusion, dialysis, and extracorporeal circulation. As a sterile disposable consumable, it can effectively avoid the risk of cross-infection and provide efficient and stable plasma separation results.
[0003] Traditional disposable plasma separators have limitations in adaptability, as the flow rate of blood entering the separator cannot be easily adjusted according to actual needs. Therefore, we propose a disposable plasma separator with flow rate adjustment to address these issues. Utility Model Content
[0004] The purpose of this invention is to provide a disposable plasma separator to solve the problem mentioned in the background art that it is inconvenient to adjust the flow rate according to actual needs.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a disposable plasma separator with flow regulation, comprising a separator body, a connecting seat installed at the top of the separator body, connecting hoses installed at the middle positions of the top of the connecting seat and the bottom of the separator body, a blood tube installed inside the connecting hose at the top of the connecting seat, a discharge tube installed inside the connecting hose at the bottom of the separator body, a plasma outlet provided at the top of one side of the separator body, a valve seat installed inside the connecting seat, a valve plate installed inside the valve seat, a valve stem installed on one side of the valve plate, and a locking bolt provided at the top of the outer wall of the valve stem.
[0006] As a further technical solution of this utility model, the cross-section of the blood tube and the discharge tube is smaller than the cross-section of the connecting hose, and the blood tube and the discharge tube respectively form an engaging structure with the connecting hose.
[0007] As a further technical solution of this utility model, the outer side wall of the separator body is fitted with an anti-slip rubber sleeve, and the surface of the anti-slip rubber sleeve is provided with anti-slip protrusions.
[0008] As a further technical solution of this utility model, a plurality of anti-slip protrusions are provided, and the plurality of anti-slip protrusions are distributed at equal intervals on the surface of the anti-slip rubber sleeve.
[0009] As a further technical solution of this utility model, clamping seats are installed at the top of the connecting seat and the bottom edge of the separator body. Threaded rods are movably arranged on both sides inside the clamping seats. A rotating block is installed on one side of each threaded rod, and a clamping block is installed on the other side of each threaded rod. Clamping grooves are provided on both sides inside the connecting hose.
[0010] As a further technical solution of this utility model, the cross-section of the clamping groove is larger than the cross-section of the clamping block, and the clamping groove and the clamping block form an engaging structure.
[0011] As a further technical solution of this utility model, the clamping seat is provided with internal threads on both sides, and the clamping seat and the threaded rod form a threaded connection.
[0012] As a further technical solution of this utility model, a plurality of clamping blocks are provided, and the plurality of clamping blocks are symmetrically distributed in pairs about the central axis of the connecting hose.
[0013] Compared with the prior art, the beneficial effects of this utility model are: by providing a connecting seat at the top of the separator body, and the connecting seat is provided with components such as valve seat, valve plate and valve stem, the valve plate in the above components can rotate inside the valve seat to adjust the flow rate entering the separator body, thereby enabling the separator body to adjust the flow rate according to actual needs, which greatly increases the adaptability of the separator body.
[0014] By providing anti-slip rubber sleeves and anti-slip protrusions on the outer side wall of the separator body, the anti-slip rubber sleeves are wrapped around the outer side wall of the separator body, and the anti-slip protrusions are fixed on the surface of the anti-slip rubber sleeves. This greatly increases the friction between the user and the separator body when the user holds the separator body, thereby greatly increasing the stability of the user's grip on the separator body and making it more stable to hold.
[0015] By providing components such as a clamping seat, threaded rod, clamping block, and clamping groove at one end of the separator body and the connecting seat, after the blood tube and the discharge tube are installed inside the connecting hose, the clamping block in the above components can engage with the clamping groove to clamp the blood tube and the discharge tube, so that the blood tube and the discharge tube are stably installed inside the connecting hose respectively, and are not easy to detach from the inside of the connecting hose during subsequent use, thus greatly increasing the stability of the connecting hose installation. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a partial cross-sectional structure of the present invention.
[0017] Figure 2 This is a side view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the valve plate structure of this utility model;
[0019] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional view of point A in the middle.
[0020] In the diagram: 1. Separator body; 2. Anti-slip rubber sleeve; 3. Connecting seat; 4. Clamping seat; 5. Blood tube body; 6. Plasma outlet; 7. Anti-slip protrusion; 8. Discharge tube body; 9. Valve seat; 10. Valve plate; 11. Valve stem; 12. Locking bolt; 13. Rotating block; 14. Threaded rod; 15. Clamping block; 16. Connecting hose; 17. Clamping groove. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-4 An embodiment of this utility model is provided: a disposable plasma separator with flow regulation, including a separator body 1, a connecting seat 3 installed at the top of the separator body 1, a connecting hose 16 installed at the top of the connecting seat 3 and the middle position of the bottom of the separator body 1, a blood tube 5 installed inside the connecting hose 16 at the top of the connecting seat 3, a discharge tube 8 installed inside the connecting hose 16 at the bottom of the separator body 1, a plasma outlet 6 provided at the top of one side of the separator body 1, a valve seat 9 installed inside the connecting seat 3, a valve plate 10 installed inside the valve seat 9, and a valve stem 11 installed on one side of the valve plate 10. A locking bolt 12 is provided at the top of the outer wall of the valve stem 11. The cross-sections of the blood tube 5 and the discharge tube 8 are smaller than the cross-sections of the connecting hose 16, and the blood tube 5 and the discharge tube 8 respectively form a locking structure with the connecting hose 16.
[0023] Specifically, such as Figure 1 and Figure 3As shown, when adjusting the flow rate of blood entering the separator body 1, the locking bolt 12 is rotated to unlock the valve stem 11. Rotating the valve stem 11 causes the valve plate 10 to rotate inside the valve seat 9, adjusting the valve seat 9 to the required size. After adjustment, the locking bolt 12 is rotated in the opposite direction to lock the valve stem 11, thereby locking the valve seat 9. Then, the blood tube 5 delivers the blood through the valve seat 9 after adjustment, allowing it to enter the separator body 1 at a certain flow rate for separation.
[0024] The outer wall of the separator body 1 is fitted with an anti-slip rubber sleeve 2, and the surface of the anti-slip rubber sleeve 2 is provided with anti-slip protrusions 7. There are several anti-slip protrusions 7, and the several anti-slip protrusions 7 are distributed at equal intervals on the surface of the anti-slip rubber sleeve 2, so that the anti-slip rubber sleeve 2 has a better anti-slip effect.
[0025] Specifically, such as Figure 1 and Figure 2 As shown, the anti-slip rubber sleeve 2 is installed on the outer side wall of the separator body 1, and the surface of the anti-slip rubber sleeve 2 is provided with uniformly distributed anti-slip protrusions 7, which greatly increases the anti-slip performance of the surface of the separator body 1, making it less likely for the user to slip when holding the separator body 1, and making it more stable to hold.
[0026] Clamping seats 4 are installed at the top of the connecting seat 3 and the bottom edge of the separator body 1. Threaded rods 14 are movably arranged on both sides inside the clamping seat 4. A rotating block 13 is installed on one side of each threaded rod 14, and a clamping block 15 is installed on the other side. Clamping grooves 17 are provided on both sides inside the connecting hose 16. Several clamping blocks 15 are provided, and these clamping blocks 15 are symmetrically distributed in pairs about the central axis of the connecting hose 16. The cross-section of the clamping groove 17 is larger than the cross-section of the clamping block 15. The clamping groove 17 and the clamping block 15 form a locking structure, which provides better limiting installation effect for the connecting hose 16. Internal threads are evenly provided on both sides inside the clamping seat 4. The clamping seat 4 and the threaded rod 14 form a threaded connection, which can push the clamping block 15 to move stably and limit the connecting hose 16.
[0027] Specifically, such as Figure 1 , Figure 2 and Figure 4 As shown, after the blood tube 5 and the discharge tube 8 are respectively inserted into the connecting hose 16 inside the clamping seats 4 at both ends of the upper part of the separator body 1 and installed together, the rotating blocks 13 on both sides of the clamping seats 4 are rotated respectively. The rotation of the rotating blocks 13 drives the threaded rod 14 to rotate. The rotation of the threaded rod 14 can push the clamping block 15 to one side and engage with the clamping grooves 17 on both sides inside the connecting hose 16, thereby clamping the blood tube 5 and the discharge tube 8 and making them stably installed inside the connecting hose 16 for use.
[0028] Working principle: In use, take out the separator body 1, and then insert the blood tube 5 and the discharge tube 8 into the connecting hose 16 inside the clamping seats 4 at both ends of the separator body 1. After installing them together, rotate the rotating blocks 13 on both sides of the clamping seats 4. The rotation of the rotating blocks 13 drives the threaded rod 14 to rotate. The rotation of the threaded rod 14 can push the clamping block 15 to one side and engage with the clamping grooves 17 on both sides inside the connecting hose 16, thereby clamping the blood tube 5 and the discharge tube 8. Then, rotate the locking bolt 12 to unlock the valve stem 11. Rotate the valve stem 11 to drive the valve plate 10 to rotate inside the valve seat 9. Adjust the valve seat 9 to the required size. Then rotate the locking bolt 12 in the opposite direction to lock the valve stem 11. In use, blood enters the interior of the separator body 1 through the blood tube 5. After separation by the separator body 1, the plasma is discharged from the plasma outlet 6 on one side. The blood liquid after separating the plasma is discharged through the discharge tube 8.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A disposable plasma separator with flow rate regulation, comprising a separator body (1), characterized in that: A connecting seat (3) is installed at the top of the separator body (1). A connecting hose (16) is installed at the top of the connecting seat (3) and at the middle position of the bottom of the separator body (1). A blood tube (5) is installed inside the connecting hose (16) at the top of the connecting seat (3). A discharge tube (8) is installed inside the connecting hose (16) at the bottom of the separator body (1). A plasma outlet (6) is provided at the top of one side of the separator body (1). A valve seat (9) is installed inside the connecting seat (3). A valve plate (10) is installed inside the valve seat (9). A valve stem (11) is installed on one side of the valve plate (10). A locking bolt (12) is provided at the top of the outer wall of the valve stem (11).
2. A disposable plasma separator with flow rate regulation according to claim 1, characterized in that: The cross-sections of the blood tube (5) and the discharge tube (8) are smaller than the cross-section of the connecting hose (16), and the blood tube (5) and the discharge tube (8) respectively form an engaging structure with the connecting hose (16).
3. A disposable plasma separator with flow rate regulation according to claim 1, characterized in that: The outer wall of the separator body (1) is fitted with an anti-slip rubber sleeve (2), and the surface of the anti-slip rubber sleeve (2) is provided with anti-slip protrusions (7).
4. A disposable plasma separator with flow rate regulation according to claim 3, characterized in that: The anti-slip protrusions (7) are provided in a plurality of them, and the plurality of anti-slip protrusions (7) are distributed at equal intervals on the surface of the anti-slip rubber sleeve (2).
5. A disposable plasma separator with flow rate regulation according to claim 1, characterized in that: Clamping seats (4) are installed at the top of the connecting seat (3) and at the bottom edge of the separator body (1). Threaded rods (14) are movably arranged on both sides inside the clamping seat (4). A rotating block (13) is installed on one side of the threaded rod (14), and a clamping block (15) is installed on the other side of the threaded rod (14). Clamping grooves (17) are provided on both sides inside the connecting hose (16).
6. A disposable plasma separator with flow rate regulation according to claim 5, characterized in that: The cross-section of the clamping groove (17) is larger than the cross-section of the clamping block (15), and the clamping groove (17) and the clamping block (15) form a locking structure.
7. A disposable plasma separator with flow rate regulation according to claim 5, characterized in that: The clamping seat (4) has internal threads evenly arranged on both sides inside, and the clamping seat (4) and the threaded rod (14) form a threaded connection.
8. A disposable plasma separator with flow rate regulation according to claim 5, characterized in that: The clamping blocks (15) are provided in a plurality of pairs, and the plurality of clamping blocks (15) are symmetrically distributed about the central axis of the connecting hose (16).