Centrifugal machine for separating and pulping plasma

Abstract

The invention discloses a centrifugal machine for plasma separating and pulping, and belongs to the technical field of centrifugal machines, the centrifugal machine comprises a machine body, a convenient device is arranged in a placing cylinder, the convenient device comprises a groove ring, the inner wall of the groove ring is fixedly connected with a positioning ring, and an air bag block is arranged between the positioning ring and the groove ring; the two ends of the round rod are fixedly connected with a fan-shaped plate and bent plates correspondingly, the fan-shaped plate is located on the outer side of the positioning ring, the convenient device in the scheme can drive the fan-shaped plate and the bent plates to move by inserting a test tube into the placing barrel to extrude an air bag block, one side of each bent plate is pressed on the surface of the test tube, and the position of the test tube is fixed; the test tube is prevented from shaking in the placing barrel as much as possible in the centrifugal process, the airbag block is restored to the original shape through the control rod to jack up the test tube, the situation that the test tube is taken out of the placing barrel due to direct contact with the placing barrel is avoided as much as possible, and the using flexibility and efficiency of the centrifugal machine are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifuges, and more particularly to a centrifuge used for plasma separation and beating. Background Art

[0002] Plasma separation is a medical procedure that aims to separate specific bioactive molecules, such as proteins, drugs or other therapeutic agents, from a patient's blood while retaining red blood cells and other formed elements. This treatment method can be used to treat a variety of diseases or regulate the body's state, such as immunoglobulin replacement therapy. When plasma is separated using a centrifuge, the centrifugal effect is used to keep the light plasma on the top of the centrifuge cup, and the heavy cellular components remain at the bottom of the cup, thereby achieving plasma separation.

[0003] When using a centrifuge to separate plasma, the blood is placed in a test tube, an anticoagulant is added to the test tube, the test tube is sealed and inserted into each test tube slot of the centrifuge, and the test tube disk is driven to rotate by a drive motor inside the centrifuge. When taking the test tube out of the test tube slot, it is inconvenient to pull out the test tube, and human hands will inevitably come into contact with the test tube slot, which requires multiple inactivation operations of the centrifuge at a later stage, resulting in low efficiency when using the centrifuge for plasma separation.

[0004] To this end, the Chinese patent with authorization announcement number CN116943881A provides an explosion-proof high-speed refrigerated centrifuge for experimental use. The technical solution is to set up multiple first electric push rods, the tops of the multiple first electric push rods are fixedly connected with sealing plates by bolts, and the bottoms of the sealing plates are fixedly connected with sealing disks; buffer sealing pads, the buffer sealing pads are sleeved on the circumferential surfaces of the multiple first electric push rods, and the second lead screw pushes the second slider to move by sliding cooperation with the second slider, and then the second slider drives the driving assembly and the two clamping blocks to move, so as to facilitate the removal of the test tube from the inside of the test tube slot and improve the efficiency when using the centrifuge.

[0005] The Chinese patent with the authorization announcement number CN218796552U provides a medical laboratory centrifuge. The technical solution is to set the installation sleeve on the disk body on the outer wall of the mounting seat, rotate the disk body by the handle, so that the pin hole on the installation sleeve is aligned with the plug pin, and then rotate and tighten the knob sleeve to push the ring to drive the slot frame to move downward. At the same time, the slide groove inside the slot frame drives the plug pin to extend out of the inside of the mounting seat and then insert into the pin hole, thereby fixing the disk body on the mounting seat. The disk body is removed from the mounting seat by holding the handle with both hands, and the sample test tube inserted into the tube hole on the disk body is taken out from the inside of the centrifuge body together, so that the test tube disk and the test tube inside the test tube slot can be taken out together, thereby improving the efficiency when using the centrifuge.

[0006] In response to the existing problems, both existing patents 1 and 2 provide solutions, and both can effectively solve the existing problems. However, existing patents 1 and 2 cannot properly fix the position of the test tube in the test tube slot or the test tube tray when using the centrifuge. During the rotation of the test tube tray, the test tube and the inner wall of the test tube slot are not in sufficient contact, which will cause the test tube to shake inside the test tube slot, resulting in the position of the test tube inside the test tube slot being skewed, affecting the centrifugal effect and possibly causing the test tube to rupture.

[0007] To this end, a centrifuge for plasma separation and beating is proposed. Summary of the invention

[0008] In view of the fact that the position of the test tube in the test tube slot or the test tube tray cannot be well fixed when using a centrifuge, the test tube is not in sufficient contact with the inner wall of the test tube slot during the rotation of the test tube tray, which will cause the test tube to shake inside the test tube slot, resulting in the position of the test tube inside the test tube slot being skewed, affecting the centrifugal effect and possibly causing the test tube to rupture. The purpose of the present invention is to provide a centrifuge for plasma separation and pulping.

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A centrifuge for plasma separation and pulping comprises a body, wherein a centrifugal chamber is provided inside the body, a rotating shaft is rotatably connected to the bottom end of the inner wall of the centrifugal chamber, a motor for driving the rotating shaft to rotate is arranged inside the body, a centrifugal disk is fixedly connected to the top end of the rotating shaft, a plurality of placement cylinders are fixedly connected to the outer surface of the centrifugal disk, a cover plate is rotatably provided on the top end of the body, and a convenient device and an auxiliary device are arranged inside the placement cylinder.

[0011] Further, the convenient device includes a groove ring, the bottom end of the groove ring is fixedly connected to the bottom end of the inner wall of the placing tube, the inner wall of the groove ring is fixedly connected to a positioning ring, an airbag block is arranged between the positioning ring and the groove ring, the airbag block is made of polyurethane material, the inside of the airbag block is filled with gas, the bottom end of the airbag block is fixedly connected to the bottom end of the inner wall of the groove ring, the top of the airbag block is fixedly connected to a convex block, the outer surface circumference of the positioning ring is provided with four embedding grooves, the inner walls of the embedding grooves are respectively slidably connected with round rods, the two ends of the round rod are respectively fixedly connected with a fan-shaped plate and a curved plate, the fan-shaped plate is located on the outer side of the positioning ring, the curved plate is located on the inner side of the positioning ring, the outer surface of the round rod is provided with a first spring, the two ends of the first spring are respectively fixedly connected to a side of the fan-shaped plate close to the round rod and a side of the inner wall of the embedding groove, the top of the fan-shaped plate is fixedly connected with a sliding rod, the top of the positioning ring is provided with a plurality of rectangular grooves, the top of the positioning ring is rotatably connected with a ratchet ring, the outer surface of the ratchet ring is provided with a plurality of A plurality of curved grooves are provided, the number of rectangular grooves on the outer surface of the positioning ring is the same as the number of curved grooves on the outer surface of the ratchet ring, the sliding rods at the top of each of the fan-shaped plates slide on the inner walls of each rectangular groove and the curved groove respectively, the top side of the positioning ring is rotatably connected with a toothed rod, one side of the toothed rod is fixedly connected with a long rope, one side of the inner wall of the placing cylinder is fixedly connected with a rectangular block, one side of the rectangular block is provided with a second spring, two ends of the second spring are respectively fixedly connected with one side of the rectangular block and one side of the toothed rod, a circular groove is opened inside the centrifugal disk, the bottom end of the inner wall of the circular groove is rotatably connected with a cylinder, one end of the long rope away from the toothed rod is fixedly connected with one side of the cylinder, the inner wall of the cylinder is provided with a guide groove, the inner wall of the circular groove is slidably connected with a control rod, one side of the bottom end of the control rod is fixedly connected with a convex ball, the outer surface of the convex ball slides on the inner wall of the guide groove, and a third spring is provided at the bottom end of the control rod, and the upper and lower ends of the third spring are respectively fixedly connected with the bottom end of the control rod and the bottom end of the inner wall of the cylinder.

[0012] Furthermore, a slot block is fixedly connected to the top of the control rod, a groove is formed at the top of the slot block, and an anti-slip strip is fixedly connected to the inner wall of the groove.

[0013] Furthermore, a protection rod is fixedly connected to the top of the centrifugal disc, the outer surface of the protection rod is in a semicircular shape, and the height of the protection rod is greater than the length of the control rod outside the circular groove.

[0014] Furthermore, two positioning blocks are fixedly connected to one side of the rectangular block, and the two positioning blocks are respectively located on the left and right sides of the second spring.

[0015] Furthermore, reinforcement strips are fixedly connected to the top and bottom edges of the airbag block, and the reinforcement strips are made of nylon.

[0016] Furthermore, a first protrusion is fixedly connected to one side of the convex teeth on the outer surface of the ratchet ring, and a second protrusion is fixedly connected to one end of the gear rod, and the first protrusion and the second protrusion are both made of metal material with a smooth outer surface.

[0017] Furthermore, the auxiliary device includes two round blocks, and the sides of the two round blocks away from each other are respectively fixedly connected to the two sides of the inner wall of the placing cylinder, one side of the round block is rotatably connected to a screw, and the end of the screw away from the round block is fixedly connected to a gear, one side of the round block is fixedly connected to a positioning rod, the outer surface of the screw is threadedly connected to a ring, one side of the inner wall of the ring slides on the outer surface of the positioning rod, and one side of the top of the ring is fixedly connected to a push rod, the two sides of the inner wall of the placing cylinder are respectively rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a clamping block, the rotating rod is located above the round block, and the end of the push rod away from the ring slides on one end of the inner wall of the rotating rod, and the top of the ratchet ring is fixedly connected to two rectangular rods, and the top of the rectangular rod is fixedly connected to a toothed disk, and the top of the toothed disk meshes with the outer surface of the gear.

[0018] Furthermore, a cushion block is fixedly connected to one side of the clamping block, and the cushion block is made of sponge material.

[0019] Furthermore, the top and bottom ends of the rectangular rod are respectively fixedly connected with inclined blocks, and the ends of the two inclined blocks away from the rectangular rod are respectively fixedly connected to the bottom end of the toothed disc and the top end of the ratchet ring.

[0020] Compared with the prior art, the present invention has the following beneficial effects: (1) This scheme provides a convenient device. When a test tube is placed in the placement cylinder, the test tube squeezes the air bag block to deform the air bag block to adjust the position of each bending plate inside the positioning ring. One side of each bending plate is pressed against the surface of the test tube to fix the position of the test tube inside the placement groove, thereby avoiding shaking of the test tube inside the placement cylinder during centrifugation as much as possible.

[0021] (2) This solution releases the restriction on the ratchet ring by pressing the control lever to rotate the cylinder, allowing the airbag block to return to its original shape and the test tube to be lifted up by the protrusion so that the top of the test tube protrudes out of the placement cylinder part, making it easy to pinch the top of the test tube at the protruding placement cylinder part to take out the test tube, avoiding contact with the placement cylinder as much as possible to cause contamination to the placement cylinder.

[0022] (3) This scheme can also drive the toothed disc to rotate when the ratchet ring rotates, and the toothed disc drives the gear to rotate to control the rotation of the two screws, so that the push rod pushes the rotating rod to rotate and press one side of the pressure block on the surface of the test tube, further fixing the position of the test tube inside the cylinder, and further improving the stability when using the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial cross-sectional structure of the machine body in the present invention; Figure 3 It is a schematic diagram of the partial cross-sectional structure of the rotating shaft of the present invention; Figure 4 It is a schematic diagram of the partial cross-sectional structure of the centrifugal disk in the present invention; Figure 5 For the present invention Figure 4 A local enlarged structural schematic diagram; Figure 6 It is a schematic diagram of the local cross-sectional structure of the placement of the cylinder in the present invention; Figure 7 It is a schematic diagram of the local cross-sectional structure of the groove ring in the present invention; Figure 8 It is a structural schematic diagram of the positioning ring in the present invention; Fig. 9 It is a schematic diagram of the partial cross-sectional structure of the cylinder in the present invention; Fig.10 It is a structural schematic diagram of the round block in the present invention.

[0024] Description of the numbers in the figure: 1. Machine body; 2. Convenient device; 3. Auxiliary device; 4. Centrifugal chamber; 5. Rotating shaft; 6. Centrifugal disc; 7. Placement cylinder; 8. Cover plate; 21. Groove ring; 22. Positioning ring; 23. Airbag block; 24. Bump; 25. Embedded groove; 26. Round rod; 27. Fan-shaped plate; 28. First spring; 29. ​​Bending plate; 210. Rectangular groove; 211. Sliding rod; 212. Ratchet ring; 213. Bending groove; 214. Rectangular block; 215. Second spring; 216. Tooth rod; 217. Long rope; 218. Cylinder; 219, control rod; 220, convex ball; 221, third spring; 222, guide groove; 223, circular groove; 224, groove block; 225, groove; 226, protective rod; 227, positioning block; 228, reinforcing strip; 229, first protrusion; 230, second protrusion; 31, round block; 32, screw rod; 33, gear; 34, positioning rod; 35, ring; 36, push rod; 37, rotating rod; 38, clamping block; 39, rectangular rod; 310, toothed disc; 311, cushion block; 312, inclined block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0026] See also Figure 1 and Figure 2 , a centrifuge for plasma separation and pulping, comprising a body 1, a centrifugal chamber 4 is provided inside the body 1, a rotating shaft 5 is rotatably connected to the bottom end of the inner wall of the centrifugal chamber 4, a motor for driving the rotating shaft 5 to rotate is arranged inside the body 1, a centrifugal disk 6 is fixedly connected to the top of the rotating shaft 5, a plurality of placement tubes 7 are fixedly connected to the outer surface of the centrifugal disk 6, a cover plate 8 is rotatably arranged on the top of the body 1, a convenient device 2 and an auxiliary device 3 are arranged inside the placement tube 7, when centrifuging plasma, the blood is put into the test tube, and then an anticoagulant is added to the test tube, and the test tube is sealed and inserted into each placement tube 7 on the surface of the centrifugal disk 6, and the cover plate 8 is covered to seal the centrifugal chamber 4, and the driving motor inside the centrifuge drives the rotating shaft 5 and the centrifugal disk 6 to rotate at a specified speed for a certain time, and the blood inside the test tube is centrifuged, and after the centrifugation is completed, the light yellow liquid on the top layer inside the test tube is the plasma at the separation point; See also Figure 1 and Fig. 9The convenient device 2 includes a groove ring 21, the bottom end of the groove ring 21 is fixedly connected to the bottom end of the inner wall of the placement tube 7, the inner wall of the groove ring 21 is fixedly connected with a positioning ring 22, an air bag block 23 is arranged between the positioning ring 22 and the groove ring 21, the air bag block 23 is made of polyurethane material, the inside of the air bag block 23 is filled with gas, the bottom end of the air bag block 23 is fixedly connected to the bottom end of the inner wall of the groove ring 21, the top of the air bag block 23 is fixedly connected with a protrusion 24, the outer surface circumference of the positioning ring 22 is provided with four embedded grooves 25, the inner walls of the embedded grooves 25 are respectively slidably connected with round rods 26, the two ends of the round rod 26 are respectively fixedly connected with a fan-shaped plate 27 and a curved plate 29, the fan-shaped plate 27 is located on the outside of the positioning ring 22, and the curved plate 29 is located on the inside of the positioning ring 22, A first spring 28 is provided on the outer surface of the round rod 26, and the two ends of the first spring 28 are respectively fixedly connected to the side of the sector plate 27 close to the round rod 26 and the inner wall side of the embedded groove 25. The top of the sector plate 27 is fixedly connected with a sliding rod 211. The top of the positioning ring 22 is provided with a plurality of rectangular grooves 210. The top of the positioning ring 22 is rotatably connected with a ratchet ring 212. The outer surface of the ratchet ring 212 is provided with a plurality of curved grooves 213. The number of rectangular grooves 210 on the outer surface of the positioning ring 22 is the same as the number of curved grooves 213 on the outer surface of the ratchet ring 212. The sliding rods 211 at the top of each sector plate 27 slide on the inner walls of each rectangular groove 210 and the curved groove 213 respectively. The top side of the positioning ring 22 is rotatably connected with a toothed rod 216 A long rope 217 is fixedly connected to one side of the gear rod 216, a rectangular block 214 is fixedly connected to one side of the inner wall of the placement cylinder 7, a second spring 215 is provided on one side of the rectangular block 214, and the two ends of the second spring 215 are respectively fixedly connected to one side of the rectangular block 214 and one side of the gear rod 216. A circular groove 223 is provided inside the centrifugal disk 6, and a cylinder 218 is rotatably connected to the bottom end of the inner wall of the circular groove 223. One end of the long rope 217 away from the gear rod 216 is fixedly connected to one side of the cylinder 218, and a guide groove 222 is provided on the inner wall of the cylinder 218. A control rod 219 is slidably connected to the inner wall of the circular groove 223. A convex ball 220 is fixedly connected to one side of the bottom end of the control rod 219, and the outer surface of the convex ball 220 is rotatably connected to the inner wall of the guide groove 222. The third spring 221 is provided at the bottom end of the control rod 219, and the upper and lower ends of the third spring 221 are respectively fixedly connected to the bottom end of the control rod 219 and the bottom end of the inner wall of the cylinder 218. By setting the air bag block 23, when the plasma is centrifuged, when the test tube is inserted into the inside of the placement tube 7, the bottom end of the test tube is inserted into the convex block 24 at the top of the air bag block 23 and located between the various curved plates 29 inside the positioning ring 22. The test tube is pressed down to apply pressure to the convex block 24. Due to the obstruction of the positioning ring 22, the air in the center of the air bag block 23 will move to the inner edge of the air bag block 23 and cause the outer surface of the polyurethane air bag block 23 to deform. Then, the edge of the air bag block 23 will enter between the groove ring 21 and the positioning ring 22 due to the squeezing of the air.The sector plate 27 at one end of each round rod 26 is pushed to make the round rod 26 slide on the inner wall of the positioning ring 22 and compress the first spring 28 on the outer surface of the round rod 26, so that the sector plate 27 enters the inside of the embedding groove 25, and the curved plate 29 at one end of the round rod 26 away from the sector plate 27 will move toward the direction of the test tube and fit on the surface of the test tube. When the round rod 26 moves, the sliding rod 211 at the top will slide on the inner wall of the rectangular groove 210 at the top of the positioning ring 22 and the inner wall of the curved groove 213 on the outer surface of the ratchet ring 212, pushing the ratchet ring 212 to rotate counterclockwise. When the ratchet ring 212 rotates, the tooth block on the outer surface contacts one side of the toothed rod 216, pushing the toothed rod 216 to rotate a certain distance in the clockwise direction and compressing the second spring 214 located between the rectangular block 214 and the toothed rod 216. 5. When the round rod 26 stops moving and the ratchet ring 212 stops rotating, the second spring 215 returns to its original state and pushes the toothed rod 216 to rotate in the original direction, inserting one end of the toothed block on the outer surface of the ratchet ring 212, so that the ratchet ring 212 will not rotate in the clockwise direction, thereby fixing the position of the sliding rod 211 inside the curved groove 213, the position of the round rod 26 and the curved plate 29, and fixing the position of the test tube inside the placement groove by pressing one side of each curved plate 29 against the surface of the test tube. When the test tube needs to be taken out after centrifugation is completed, the control rod 219 is pressed to slide downward on the inner wall of the circular groove 223 and compress the third spring 221 at the bottom. When the control rod 219 moves, the convex ball 220 on one side of the bottom will press against the inner wall of the cylinder 218. The cylinder 218 is pushed to rotate in the direction of the guide groove 222, and one end portion of each long rope 217 on the outer surface is wrapped around its own surface, and the toothed rod 216 is pulled away from the ratchet ring 212 by the long rope 217 and the second spring 215 is compressed. At this time, the first spring 28 compressed on the outer surface of the round rod 26 will return to its original state and push the sector plate 27 to move away from the embedding groove 25, and the ratchet ring 212 is driven to rotate clockwise by the sliding rod 211, and the air squeezed inside the airbag block 23 will be evenly distributed inside the airbag block 23 and the protrusion 24 will be filled with air again, pushing the test tube upward so that the top of the test tube protrudes from the placement tube 7. After releasing the control rod 219, the third spring 221 will return to its original state and push the control rod 219 to rotate clockwise. The control rod 219 moves upward, and the cylinder 218 rotates in the original direction to release the long rope 217 on the surface. The second spring 215 returns to its original state and pushes the toothed rod 216 to re-enter between the convex teeth outside the ratchet ring 212 and straighten the long rope 217. Then, the test tube can be taken out by pinching the protruding part of the placement tube 7 at the top of the placement tube 7, and contact with the placement tube 7 to contaminate the placement tube 7 as much as possible. By setting up the convenient device 2, the test tube is inserted into the interior of the placement tube 7 and the air bag block 23 is squeezed to drive the fan plate 27 and the bending plate 29 to move, and one side of each bending plate 29 is attached to the surface of the test tube to fix the position of the test tube inside the placement tube 7, and the air bag block 23 is restored to its original state by the control rod 219 to push the test tube upward.Avoid shaking of the test tube inside the placement tube 7 during the centrifugation process as much as possible, and avoid direct contact with the placement tube 7 as much as possible to remove the test tube from the placement tube 7, thereby improving the flexibility and efficiency of the centrifuge; See also Figure 2 , Figure 3 and Fig. 9 , the top of the control rod 219 is fixedly connected with a groove block 224, and a groove 225 is opened at the top of the groove block 224, and an anti-slip strip is fixedly connected to the inner wall of the groove 225. When using the control rod 219, pressing the surface of the anti-slip strip at the groove 225 on the outer surface of the groove block 224 with your hand can increase the friction between the hand and the groove 225, and pressing the control rod 219 is more convenient and less likely to slip. The top of the centrifugal disk 6 is fixedly connected with a protective rod 226, and the outer surface shape of the protective rod 226 is semicircular, and the height of the protective rod 226 is greater than the length of the control rod 219 outside the circular groove 223. The top of the control rod 219 can be protected by the protective rod 226, and it is avoided as much as possible that the top of the cover plate 8 is accidentally squeezed and the control rod 219 is touched when the cover plate 8 is covered, causing the test tube inside the cylinder 7 to loosen, and the control rod 219 can be operated on the open side of the semicircular protective rod 226; See also Figures 2 to 9 Two positioning blocks 227 are fixedly connected to one side of the rectangular block 214. The two positioning blocks 227 are respectively located on the left and right sides of the second spring 215. When the second spring 215 is compressed and deformed, it will move between the two positioning blocks 227. The outer surface shape of the second spring 215 can be reinforced by the positioning blocks 227 to avoid the second spring 215 from being twisted when deformed as much as possible, which affects normal use. The top and bottom edges of the airbag block 23 are fixedly connected with a reinforcing strip 228. The reinforcing strip 228 is made of nylon. By setting the reinforcing strip 228 of nylon The top and bottom edges of the airbag block 23 can be reinforced to avoid the airbag block 23 from breaking at the edges when it is deformed, which may cause internal air leakage. A first protrusion 229 is fixedly connected to one side of the convex teeth on the outer surface of the ratchet ring 212, and a second protrusion 230 is fixedly connected to one end of the gear rod 216. Both the first protrusion 229 and the second protrusion 230 are made of metal with smooth outer surfaces. By providing the first protrusion 229 and the second protrusion 230, when the ratchet ring 212 rotates and contacts one side of the gear rod 216, it is easier to push the gear rod 216 to rotate and is not easy to get stuck.

[0027] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , Figure 7 as well as Fig.10The auxiliary device 3 includes two round blocks 31, and the sides of the two round blocks 31 that are away from each other are fixedly connected to the two sides of the inner wall of the placement cylinder 7 respectively. A screw rod 32 is rotatably connected to one side of the round block 31, and a gear 33 is fixedly connected to one end of the screw rod 32 away from the round block 31. A positioning rod 34 is fixedly connected to one side of the round block 31. A ring 35 is threadedly connected to the outer surface of the screw rod 32, and one side of the inner wall of the ring 35 slides on the outer surface of the positioning rod 34. A push rod 36 is fixedly connected to one side of the top of the ring 35. A rotating rod 37 is rotatably connected to the two sides of the inner wall of the placement cylinder 7 respectively, and a clamping block 38 is fixedly connected to one end of the rotating rod 37. The rotating rod 37 is located above the round block 31, and one end of the push rod 36 away from the ring 35 slides on one end of the inner wall of the rotating rod 37. The top of the ratchet ring 212 is fixedly connected to two rectangular rods 39, and the top of the rectangular rod 39 is fixedly connected to a toothed disc 310. The top of the toothed disc 310 meshes with the outer surface of the gear 33. The clamping block 38 is set, and when the test tube is fixed in the placing tube 7 by the convenient device 2, the ratchet ring 212 rotates counterclockwise to drive the toothed disc 310 to rotate through the rectangular rod 39, and the toothed disc 310 drives the two gears 33 and the screw 32 at one end of the gear 33 to rotate, so that the ring 35 moves in the direction of the round block 31 on the outer surface of the positioning rod 34, and drives the push rod 36 to slide on one end of the inner wall of the rotating rod 37 and push the rotating rod 37 to rotate, so that the clamping blocks 38 at one end of the two rotating rods 37 are clamped on both sides of the test tube near the top, and the position of the test tube in the placing tube 7 is further fixed, and the stability of the test tube when the position is fixed in the placing tube 7 is improved. When the test tube is taken out from the placing tube 7, the ratchet ring 212 rotates clockwise to drive the two gears 33 and the screw 32 to rotate, so that the ring 35 moves in the direction of the gear 33 on the outer surface of the screw 32, and the rotating rod 37 is pulled by the push rod 36 to rotate, so that the clamping block 38 is away from the surface of the test tube. See also Figure 6 , Figure 7 and Fig.10 A pad 311 is fixedly connected to one side of the clamping block 38, and the pad 311 is made of sponge material. When the sponge pad 311 is pressed on the surface of the test tube, it is not easy to cause damage to the surface of the test tube. The top and bottom sides of the rectangular rod 39 are respectively fixedly connected with inclined blocks 312, and the ends of the two inclined blocks 312 away from the rectangular rod 39 are respectively fixedly connected to the bottom side of the toothed disk 310 and the top side of the ratchet ring 212. By setting the inclined blocks 312, the connection between the rectangular rod 39 and the ratchet ring 212 and the toothed disk 310 can be reinforced to avoid the angle between the ratchet ring 212 and the toothed disk 310 from being skewed as much as possible.

[0028] Instructions for use: When the centrifuge is in use, blood is placed in a test tube, and then an anticoagulant is added to the test tube. After the test tube is sealed, the test tube is inserted into the placement tube 7 so that the bottom end of the test tube is inserted between the protrusion 24 at the top of the airbag block 23 and between the various curved plates 29 inside the positioning ring 22. The test tube is pressed down to apply pressure to the protrusion 24. Due to the obstruction of the positioning ring 22, the air in the center of the airbag block 23 will move to the inner edge of the airbag block 23 and deform the outer surface of the polyurethane airbag block 23. Subsequently, the edge of the airbag block 23 will enter between the groove ring 21 and the positioning ring 22 due to the squeezing of the air, pushing the fan-shaped plate 27 at one end of each round rod 26 to make the round rod 26 slide on the inner wall of the positioning ring 22 and compress the first spring 2 on the outer surface of the round rod 26. 8, so that the sector plate 27 enters the interior of the embedded groove 25, the curved plate 29 at one end of the round rod 26 away from the sector plate 27 will move in the direction of the test tube and fit on the surface of the test tube, and when the round rod 26 moves, the sliding rod 211 at the top will slide on the inner wall of the rectangular groove 210 at the top of the positioning ring 22 and the inner wall of the curved groove 213 on the outer surface of the ratchet ring 212, pushing the ratchet ring 212 to rotate in the counterclockwise direction, and when the ratchet ring 212 rotates, the tooth block on the outer surface contacts one side of the toothed rod 216, pushing the toothed rod 216 to rotate a certain distance in the clockwise direction and compressing the second spring 215 located between the rectangular block 214 and the toothed rod 216, and when the round rod 26 stops moving and the ratchet ring 212 stops rotating, the second spring 215 returns to its original state, pushing the toothed rod 216 to the original direction The ratchet ring 212 is rotated in the clockwise direction to clamp one end between the tooth blocks on the outer surface of the ratchet ring 212, so that the ratchet ring 212 will not rotate in the clockwise direction, and the position of the sliding rod 211 inside the curved groove 213, the position of the round rod 26 and the curved plate 29 are fixed. The position of the test tube inside the placement groove is fixed by pressing one side of each curved plate 29 against the surface of the test tube. The ratchet ring 212 rotates counterclockwise to drive the toothed disc 310 to rotate through the rectangular rod 39, and the two gears 33 and the screw 32 at one end of the gear 33 are driven to rotate through the toothed disc 310, so that the circular ring 35 moves on the outer surface of the positioning rod 34 in the direction of the circular block 31, and drives the push rod 36 to slide on one end of the inner wall of the rotating rod 37 and push the rotating rod 37 to rotate, so that the clamping blocks 38 at one end of the two rotating rods 37 are clamped in The two sides of the test tube near the top further fix the position of the test tube inside the placement cylinder 7. When the test tube needs to be taken out after centrifugation, the control rod 219 is pressed to make the control rod 219 slide downward on the inner wall of the circular groove 223 and compress the third spring 221 at the bottom. When the control rod 219 moves, the convex ball 220 on one side of the bottom will move in the guide groove 222 on the inner wall of the cylinder 218, pushing the cylinder 218 to rotate in the direction of the guide groove 222, and wrapping one end portion of each long rope 217 on the outer surface around its own surface, pulling the toothed rod 216 away from the ratchet ring 212 through the long rope 217 and compressing the second spring 215. At this time, the first spring 28 compressed on the outer surface of the round rod 26 will return to its original state and push the fan-shaped plate 27 to move in the direction away from the embedded groove 25.The ratchet ring 212 is driven by the sliding rod 211 to rotate clockwise, and the air squeezed inside the airbag block 23 will be evenly redistributed inside the airbag block 23 and the protrusion 24 will be filled with air again, pushing the test tube upward so that the top of the test tube protrudes from the placement tube 7. The clockwise rotation of the ratchet ring 212 will drive the two gears 33 and the screw 32 to rotate, so that the ring 35 moves on the outer surface of the screw 32 in the direction of the gear 33. The push rod 36 pulls the rotating rod 37 to rotate, so that the clamping block 38 is away from the surface of the test tube. After releasing the control rod 219, the third spring 221 will return to its original state and push the control rod 219 to move upward The cylinder 218 will rotate in the original direction to release the long rope 217 on the surface. The second spring 215 will return to its original state and push the gear rod 216 to re-enter the convex teeth outside the ratchet ring 212 and straighten the long rope 217. Then, you can pinch the protruding part of the test tube at the top of the placement tube 7 to take out the test tube, and try to avoid contact with the placement tube 7 to cause contamination to the placement tube 7. Cover the cover plate 8 to close the centrifugal chamber 4, and drive the centrifugal disk 6 to rotate at a specified speed for a certain period of time through the driving motor inside the centrifuge. After the centrifugation is completed, the light yellow liquid on the top layer inside the test tube is the plasma at the separation point.

[0029] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A centrifuge for separating and beating plasma, comprising a body (1), characterized in that: A centrifugal chamber (4) is provided inside the machine body (1), a rotating shaft (5) is rotatably connected to the bottom end of the inner wall of the centrifugal chamber (4), a motor for driving the rotating shaft (5) to rotate is provided inside the machine body (1), a centrifugal disc (6) is fixedly connected to the top end of the rotating shaft (5), a plurality of placement cylinders (7) are fixedly connected to the outer surface of the centrifugal disc (6), a cover plate (8) is rotatably provided at the top end of the machine body (1), and a convenient device (2) and an auxiliary device (3) are provided inside the placement cylinder (7).

2. A centrifuge for plasma separation and beating according to claim 1, characterized in that: The convenient device (2) comprises a groove ring (21), the bottom end of the groove ring (21) is fixedly connected to the bottom end of the inner wall of the placement tube (7), the inner wall of the groove ring (21) is fixedly connected to a positioning ring (22), an airbag block (23) is arranged between the positioning ring (22) and the groove ring (21), the airbag block (23) is made of polyurethane material, the inside of the airbag block (23) is filled with gas, the bottom end of the airbag block (23) is fixedly connected to the bottom end of the inner wall of the groove ring (21), the top of the airbag block (23) is fixedly connected to a protrusion (24), the outer surface circumference of the positioning ring (22) is provided with four embedding grooves (25), the inner walls of the embedding grooves (25) are respectively slidably connected to round rods (26), and the airbag block (23) is provided with a plurality of protrusions (24). The two ends of the round rod (26) are respectively fixedly connected with a sector plate (27) and a curved plate (29), the sector plate (27) is located on the outside of the positioning ring (22), and the curved plate (29) is located on the inside of the positioning ring (22). A first spring (28) is provided on the outer surface of the round rod (26), and the two ends of the first spring (28) are respectively fixedly connected to a side of the sector plate (27) close to the round rod (26) and a side of the inner wall of the embedding groove (25). The top end of the sector plate (27) is fixedly connected with a sliding rod (211), and the top end of the positioning ring (22) is provided with a plurality of rectangular grooves (210). The top end of the positioning ring (22) is rotatably connected with a ratchet ring (212), and the ratchet ring (212) is The outer surface is provided with a plurality of curved grooves (213); the number of the rectangular grooves (210) on the outer surface of the positioning ring (22) is the same as the number of the curved grooves (213) on the outer surface of the ratchet ring (212); the sliding rods (211) at the top ends of the respective sector plates (27) slide on the inner walls of the respective rectangular grooves (210) and the curved grooves (213); one side of the top end of the positioning ring (22) is rotatably connected to a toothed rod (216); one side of the toothed rod (216) is fixedly connected to a long rope (217); one side of the inner wall of the placing tube (7) is fixedly connected to a rectangular block (214); one side of the rectangular block (214) is provided with a second spring (215); the two ends of the second spring (215) are respectively connected to the rectangular block (214); One side of the centrifugal disc (214) is fixedly connected to one side of the gear rod (216); a circular groove (223) is provided inside the centrifugal disc (6); the bottom end of the inner wall of the circular groove (223) is rotatably connected to a cylinder (218); one end of the long rope (217) away from the gear rod (216) is fixedly connected to one side of the cylinder (218); a guide groove (222) is provided on the inner wall of the cylinder (218); a control rod (219) is slidably connected to the inner wall of the circular groove (223); a convex ball (220) is fixedly connected to one side of the bottom end of the control rod (219); the outer surface of the convex ball (220) slides on the inner wall of the guide groove (222); a third spring (221) is provided at the bottom end of the control rod (219);The upper and lower ends of the third spring (221) are fixedly connected to the bottom end of the control rod (219) and the bottom end of the inner wall of the cylinder (218), respectively.

3. A centrifuge for plasma separation and beating according to claim 2, characterized in that: The top end of the control rod (219) is fixedly connected to a slot block (224), the top end of the slot block (224) is provided with a groove (225), and the inner wall of the groove (225) is fixedly connected to an anti-slip strip.

4. A centrifuge for plasma separation and beating according to claim 3, characterized in that: A protection rod (226) is fixedly connected to the top end of the centrifugal disc (6); the outer surface of the protection rod (226) is semicircular in shape; and the height of the protection rod (226) is greater than the length of the control rod (219) outside the circular groove (223).

5. A centrifuge for plasma separation and beating according to claim 4, characterized in that: Two positioning blocks (227) are fixedly connected to one side of the rectangular block (214), and the two positioning blocks (227) are respectively located on the left and right sides of the second spring (215).

6. A centrifuge for plasma separation and beating according to claim 5, characterized in that: Reinforcement strips (228) are fixedly connected to the top and bottom edges of the airbag block (23), and the reinforcement strips (228) are made of nylon.

7. A centrifuge for plasma separation and beating according to claim 6, characterized in that: A first protrusion (229) is fixedly connected to one side of the protruding teeth on the outer surface of the ratchet ring (212), and a second protrusion (230) is fixedly connected to one end of the toothed rod (216); the first protrusion (229) and the second protrusion (230) are both made of metal material with smooth outer surfaces.

8. A centrifuge for plasma separation and beating according to claim 2, characterized in that: The auxiliary device (3) comprises two round blocks (31), the sides of the two round blocks (31) being away from each other are respectively fixedly connected to the two sides of the inner wall of the placement cylinder (7), one side of the round block (31) is rotatably connected to a screw rod (32), one end of the screw rod (32) away from the round block (31) is fixedly connected to a gear (33), one side of the round block (31) is fixedly connected to a positioning rod (34), the outer surface of the screw rod (32) is threadedly connected to a ring (35), one side of the inner wall of the ring (35) slides on the outer surface of the positioning rod (34), and the top of the ring (35) is fixedly connected to the positioning rod (34). A push rod (36) is fixedly connected to one side, and rotating rods (37) are rotatably connected to both sides of the inner wall of the placement cylinder (7). One end of the rotating rod (37) is fixedly connected to a clamping block (38). The rotating rod (37) is located above the round block (31). The end of the push rod (36) away from the circular ring (35) slides on one end of the inner wall of the rotating rod (37). The top end of the ratchet ring (212) is fixedly connected to two rectangular rods (39). The top end of the rectangular rod (39) is fixedly connected to a toothed disc (310). The top end of the toothed disc (310) meshes with the outer surface of the gear (33).

9. A centrifuge for plasma separation and beating according to claim 8, characterized in that: A cushion block (311) is fixedly connected to one side of the clamping block (38), and the cushion block (311) is made of sponge material.

10. A centrifuge for plasma separation and beating according to claim 9, characterized in that: The top and bottom ends of the rectangular rod (39) are respectively fixedly connected to inclined blocks (312), and the ends of the two inclined blocks (312) away from the rectangular rod (39) are respectively fixedly connected to the bottom end of the toothed disc (310) and the top end of the ratchet ring (212).

Images