An apparatus for the extraction of platelet plasma

Abstract

The utility model discloses a kind of extraction devices for platelet plasma, and its technical solution main points are: including separation tank, the top of separation tank is rotatably connected with cover plate, the inside of separation tank is provided with separation disc, the top of separation disc is equipped with a plurality of fixed holes, the inner circular wall surface of fixed hole is movably sleeved with separation tube, by setting silica gel plug, when staff needs to extract separated platelet and plasma in separation tube, staff can be extracted needle at this time, needle is inserted into the inside of silica gel plug, so that segmented extraction is carried out to separated platelet and plasma, by setting resistance ring, when separation tube is high-speed rotating in the inside of sleeve, at this time, due to centrifugal effect, force separation tube to move up along the outer circular wall surface of sleeve barrel, and due to resistance ring and separation tube just fit, resistance ring can effectively prevent separation tube from rising at this time.

Description

Technical Field

[0001] This utility model relates to the field of extraction technology, specifically to an extraction device for platelet plasma. Background Technology

[0002] Blood is a complex fluid composed of plasma and blood cells. Blood cells are composed of red blood cells, white blood cells, and platelets. Platelets play a key role in hemostasis and clotting. Plasma, on the other hand, is the fluid in blood excluding blood cells. It mainly contains important components such as water, proteins, electrolytes, and hormones, but it cannot perform the comprehensive functions of blood on its own.

[0003] The commonly used method for platelet and plasma extraction in current technology is centrifugation. Centrifuges separate plasma and platelets from blood. Workers need to extract and preserve the separated plasma and platelets separately. The common extraction method involves lifting the test tube through the centrifuge's placement port and then sequentially drawing the separated plasma and platelets through the test tube opening. If the test tube is shaken during extraction, the plasma and platelets in the test tube will mix again, resulting in insufficient purification of the extracted platelets and thus affecting the extraction efficiency of platelets and plasma. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a device for extracting platelet plasma.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An extraction device for platelet plasma includes a separation chamber, a cover plate rotatably connected to the top of the separation chamber, a separation disc arranged inside the separation chamber, a plurality of fixing holes opened on the top of the separation disc, a separation tube movably sleeved on the inner circular wall of the fixing holes, a plurality of sealing holes opened on the outer circular wall of the separation tube, and a silicone plug fixedly connected to the inner circular wall of the sealing holes.

[0007] The separation box is equipped with a rotating component inside.

[0008] To limit the movement of the separation disc and separation tube under centrifugal force, in a preferred embodiment of this invention for platelet plasma extraction, the motor is located inside the separation chamber. The drive shaft of the motor is fixedly connected to the bottom of the separation disc. A sleeve is fixedly connected to the inner circular wall of the fixing hole. A fixing tube is fixedly connected to the inner top surface of the cover plate. A bearing is fixedly sleeved on the outer circular wall of the fixing tube. A rotating disc is provided on the inner top surface of the cover plate. An installation hole is opened on the top surface of the rotating disc. The installation hole is fixedly sleeved on the outer circular wall of the bearing outer ring. A friction plate is fixedly connected to the end of the fixing tube away from the cover plate. A spring-loaded assembly is fixedly connected to the inner bottom surface of the sleeve.

[0009] To allow the separation tube to slowly eject from inside the sleeve, as a preferred embodiment of the platelet plasma extraction device of this invention, the ejector assembly includes: an ejector frame, the ejector frame being fixedly connected to the inner bottom surface of the sleeve; a lifting cylinder being movably sleeved on the top of the ejector frame; a fixing block being provided at the bottom of the ejector frame; a limiting rod being fixedly connected to the top of the fixing block; a track rod being fixedly connected to the inner top surface of the ejector frame; a spring being fixedly connected to the bottom of the track rod; a spiral groove being formed on the outer circular wall surface of the limiting rod; a rising ring being fixedly connected inside the lifting cylinder; the lifting cylinder being movably sleeved with the limiting rod; and the spiral groove being movably sleeved with the rising ring.

[0010] To increase the frictional resistance when the separation tube moves, as a platelet plasma extraction device of this invention, preferably, a number of resistance rings are fixedly connected to the inner circular wall of the sleeve.

[0011] In order to make the turntable fit against the top surface of the separation disc and allow the turntable to rotate with the separation disc, as a platelet plasma extraction device of this utility model, preferably, the top of the separation disc is provided with a rotating groove, and the rotating groove is movably connected to the friction plate.

[0012] In order to fix the motor inside the separation box, as a platelet plasma extraction device of this utility model, preferably, a support frame is fixedly connected to the bottom surface of the separation box, and the support frame is fixedly connected to the motor.

[0013] In summary, the present invention has the following main advantages:

[0014] 1. With the silicone stopper in place, when staff need to extract the separated platelets and plasma from the separation tube, they can insert the needle of the suction needle into the silicone stopper to extract the separated platelets and plasma in segments.

[0015] 2. With the help of the resistance ring, when the separation tube rotates at high speed inside the sleeve, the centrifugal force forces the separation tube to move upward along the outer wall of the sleeve. Since the resistance ring is in close contact with the separation tube, the resistance ring can effectively prevent the separation tube from rising.

[0016] 3. When the separation tube completes separation inside the separation plate via the set lifting cylinder, the lifting cylinder needs to be pressed to lower it, causing the lifting frame to descend, which in turn causes the track rod to descend and compress the spring. When the track rod descends to the top of the fixed block, the fixed block rebounds and drives the limiting rod to rise, which in turn causes the limiting rod to rise into the inside of the rising ring, thereby causing the lifting cylinder to spiral upward, so as to slowly lift the separation tube. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the turntable structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the separation disc structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cover plate structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the separation tube structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the silicone plug structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the sleeve structure of this utility model;

[0024] Figure 8 This is a schematic diagram of the spring-loaded frame structure of this utility model;

[0025] Figure 9 This is a schematic diagram of the rising ring structure of this utility model.

[0026] Reference numerals: 1. Separation box; 2. Cover plate; 3. Separation disc; 4. Turntable; 5. Bearing; 6. Friction plate; 7. Sleeve; 8. Motor; 9. Support frame; 10. Fixing hole; 11. Rotating groove; 12. Fixing tube; 13. Mounting hole; 14. Separation tube; 15. Silicone plug; 16. Sealing hole; 17. Spring frame; 18. Lifting cylinder; 19. Track rod; 20. Spring; 21. Fixing block; 22. Limiting rod; 23. Resistance ring; 24. Rising ring. Detailed Implementation

[0027] 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.

[0028] Example: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 An extraction device for platelet plasma includes a separation chamber 1, a cover plate 2 rotatably connected to the top of the separation chamber 1, a separation disc 3 inside the separation chamber 1, a plurality of fixing holes 10 on the top of the separation disc 3, a separation tube 14 movably sleeved on the inner circular wall of the fixing holes 10, a plurality of sealing holes 16 on the outer circular wall of the separation tube 14, and silicone plugs 15 fixedly connected to the inner circular wall of the sealing holes 16. A rotating assembly including a motor 8 is arranged inside the separation chamber 1, the drive shaft of the motor 8 is fixedly connected to the bottom of the separation disc 3, and the inner circular wall of the fixing holes 10... A sleeve 7 is fixedly connected to the wall. A fixed tube 12 is fixedly connected to the inner top surface of the cover plate 2. A bearing 5 is fixedly sleeved on the outer circular wall surface of the fixed tube 12. A turntable 4 is provided on the inner top surface of the cover plate 2. An installation hole 13 is opened on the top surface of the turntable 4. The installation hole 13 is fixedly sleeved with the outer circular wall surface of the outer ring of the bearing 5. A friction plate 6 is fixedly connected to the end of the fixed tube 12 away from the cover plate 2. A spring lifting component is fixedly connected to the inner bottom surface of the sleeve 7. A rotating groove 11 is opened on the top of the separation plate 3. The rotating groove 11 is movably sleeved with the friction plate 6. A support frame 9 is fixedly connected to the inner bottom surface of the separation box 1. The support frame 9 is fixedly connected to the motor 8.

[0029] When the operator needs to separate plasma from blood using the motor 8, the blood is first placed into the separation tube 14, which is then inserted through the fixing hole 10 into the sleeve 7. Multiple track rods 19 and the sleeve 7 are arranged to confine the separation tubes 14 within the separation plate 3. Since the separation tubes 14 are disposable and contain separating adhesive, the cover 2 is then closed, causing the turntable 4 to adhere to the separation plate 3, thus blocking the top of the separation tubes 14. The motor 8 is then started, causing its drive shaft to rotate clockwise, which in turn rotates the separation plate 3. This rotation of the separation plate 3 causes the multiple separation tubes 14 to rotate, resulting in centrifugal motion within the separation chamber 1, facilitating the separation of the blood inside the tubes. After the blood inside the separation tubes 14 is separated, the plasma and platelets in the blood are separated... Inside the separation tube 14, the separating gel mixes with the plasma. During centrifugation, the separating gel gradually forms a stable isolation layer, separating platelets and plasma. At this point, plasma is in the upper part of the separation tube 14, and platelets are in the lower part. When plasma and platelets need to be extracted separately, the operator inserts the needle of the aspiration needle into the silicone stopper 15 corresponding to the position of the plasma for extraction. After extracting the plasma, another aspiration needle is used to insert into the position corresponding to the platelets for extraction. When the operator needs to extract platelets first, the aspiration needle is inserted into the position corresponding to the platelets to extract the platelets first, and then the plasma is extracted. This avoids shaking the test tube during the sequential extraction of plasma and platelets through the test tube opening at the top of the tube, which would cause secondary mixing of the plasma and platelets in the test tube, resulting in insufficient purification of the extracted platelets and thus affecting the extraction effect of platelets and plasma.

[0030] refer to Figure 7 , Figure 8 and Figure 9 The lifting assembly includes a lifting frame 17, which is fixedly connected to the inner bottom surface of the sleeve 7. A lifting cylinder 18 is movably sleeved on the top of the lifting frame 17. A fixing block 21 is provided at the bottom of the lifting frame 17. A limiting rod 22 is fixedly connected to the top of the fixing block 21. A track rod 19 is fixedly connected to the inner top surface of the lifting frame 17. A spring 20 is fixedly connected to the bottom of the track rod 19. A spiral groove is opened on the outer circular wall surface of the limiting rod 22. A rising ring 24 is fixedly connected inside the lifting cylinder 18. The lifting cylinder 18 is movably sleeved with the limiting rod 22. The spiral groove is movably sleeved with the rising ring 24. Several resistance rings 23 are fixedly connected to the inner circular wall surface of the sleeve 7.

[0031] By setting up the lifting cylinder 18, when the separation tube 14 completes separation inside the separation plate 3, the lifting cylinder 18 needs to be pressed to lower it, causing the lifting frame 17 to descend. This, in turn, causes the track rod 19 to descend, which in turn causes the spring 20 at the bottom of the track rod 19 to descend to the top of the fixing block 21. Due to the rebound potential energy of the spring 20, the spring 20 causes the track rod 19 to rise, which in turn causes the fixing block 21 to rise, thereby causing the limiting rod 22 to rise. When the limiting rod 22 rises to the inside of the rising ring 24, it causes the rising ring 24 to rotate and rise, which in turn causes the lifting cylinder 18 to rotate and rise. This allows the lifting cylinder 18 to rise and drive the separation tube 14 to rise, so that the workers can remove the separation tube 14.

[0032] Working principle: Please refer to Figures 1-9 As shown, when the staff needs to separate plasma from blood using the motor 8, the blood is first placed into the separation tube 14, and then the separation tube 14 is inserted into the sleeve 7 through the fixing hole 10. The multiple track rods 19 and the sleeve 7 are distributed on top, which can restrict the multiple separation tubes 14 in the middle of the separation plate 3. Since the separation tube 14 is a disposable test tube and is filled with separation adhesive, the cover plate 2 is then closed so that the turntable 4 fits against the separation plate 3 to block the top of the separation tube 14. Then the motor 8 is started, and the drive shaft of the motor 8 rotates clockwise, which drives the separation plate 3 to rotate clockwise. When the separation plate 3 rotates, it will drive the multiple separation tubes 14 to rotate, so that the separation tubes 14 can generate centrifugal motion inside the separation box 1, which facilitates the separation of blood inside the separation tubes 14.

[0033] Through the separation tube 14, after the blood inside the tube is separated, the plasma and platelets in the blood mix with the separating gel inside the tube 14. During centrifugation, the separating gel gradually forms a stable isolation layer, separating the platelets and plasma. At this time, the plasma is in the upper part of the separation tube 14, and the platelets are in the lower part. When it is necessary to extract plasma and platelets separately, the staff inserts the needle of the aspiration needle into the silicone stopper 15 corresponding to the position of the plasma for extraction. After the plasma is extracted, another aspiration needle is inserted into the position corresponding to the platelets for extraction. When the staff needs to extract platelets first, the aspiration needle is inserted into the position corresponding to the platelets to extract the platelets first, and then the plasma is extracted. This avoids shaking the test tube during the sequential extraction of plasma and platelets through the test tube opening at the top of the test tube, which would cause secondary mixing of the plasma and platelets in the test tube, resulting in insufficient purification of the extracted platelets and thus affecting the extraction effect of platelets and plasma.

[0034] By setting up the lifting cylinder 18, when the separation tube 14 completes separation inside the separation plate 3, the lifting cylinder 18 needs to be pressed to lower it, causing the lifting frame 17 to descend. This, in turn, causes the track rod 19 to descend, which in turn causes the spring 20 at the bottom of the track rod 19 to descend to the top of the fixing block 21. Due to the rebound potential energy of the spring 20, the spring 20 causes the track rod 19 to rise, which in turn causes the fixing block 21 to rise, thereby causing the limiting rod 22 to rise. When the limiting rod 22 rises to the inside of the rising ring 24, it causes the rising ring 24 to rotate and rise, which in turn causes the lifting cylinder 18 to rotate and rise. This allows the lifting cylinder 18 to rise and drive the separation tube 14 to rise, so that the workers can remove the separation tube 14.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for extracting platelet-rich plasma, characterized in that, include: A separation box (1) is rotatably connected to the top of the separation box (1). A separation plate (3) is provided inside the separation box (1). Several fixing holes (10) are opened on the top of the separation plate (3). A separation tube (14) is movably sleeved on the inner circular wall of the fixing hole (10). Several sealing holes (16) are opened on the outer circular wall of the separation tube (14). A silicone plug (15) is fixedly connected to the inner circular wall of the sealing hole (16). The separation box (1) is equipped with a rotating component inside.

2. The apparatus for extracting platelet-rich plasma according to claim 1, characterized in that, The rotating component includes: The motor (8) is located inside the separation box (1). The drive shaft of the motor (8) is fixedly connected to the bottom of the separation disc (3). A sleeve (7) is fixedly connected to the inner circular wall of the fixing hole (10). A fixing tube (12) is fixedly connected to the inner top surface of the cover plate (2). A bearing (5) is fixedly sleeved on the outer circular wall of the fixing tube (12). A turntable (4) is provided on the inner top surface of the cover plate (2). An installation hole (13) is opened on the top surface of the turntable (4). The installation hole (13) is fixedly sleeved on the outer circular wall of the outer ring of the bearing (5). A friction plate (6) is fixedly connected to the end of the fixing tube (12) away from the cover plate (2). The inner bottom surface of the sleeve (7) is fixedly connected to the spring-loaded assembly.

3. The apparatus for extracting platelet-rich plasma according to claim 2, characterized in that, The lifting assembly includes: A spring-loaded frame (17) is fixedly connected to the inner bottom surface of the sleeve (7). A lifting cylinder (18) is movably sleeved on the top of the spring-loaded frame (17). A fixing block (21) is provided at the bottom of the spring-loaded frame (17). A limiting rod (22) is fixedly connected to the top of the fixing block (21). A track rod (19) is fixedly connected to the inner top surface of the spring-loaded frame (17). A spring (20) is fixedly connected to the bottom of the track rod (19). A spiral groove is opened on the outer circular wall surface of the limiting rod (22). A rising ring (24) is fixedly connected inside the lifting cylinder (18). The lifting cylinder (18) is movably sleeved with the limiting rod (22). The spiral groove is movably sleeved with the rising ring (24).

4. The apparatus for extracting platelet plasma according to claim 2, characterized in that: The inner circular wall of the sleeve (7) is fixedly connected with several resistance rings (23).

5. The apparatus for extracting platelet plasma according to claim 2, characterized in that: The top of the separation disc (3) is provided with a rotating groove (11), which is movably connected to the friction plate (6).

6. The apparatus for extracting platelet plasma according to claim 2, characterized in that, The bottom surface of the separation box (1) is fixedly connected to a support frame (9), and the support frame (9) is fixedly connected to the motor (8).

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