A human blood separation device for hematology

Abstract

The invention discloses a human blood separation device for hematology, comprising a centrifuge and a quantitative collection component. The outer side of the centrifuge is rotatably connected to a plurality of fixed splints through a plurality of pairs of connecting plates. The quantitative collection component comprises a telescopic rod fixedly connected to one side of each fixed splint, a clamp is arranged at the output rod end of the telescopic rod, a disposable sampling tube is arranged at the fixed clamp at one end of the clamp, a blood collection tube is arranged at one side of the fixed splint, a sampling end of the disposable sampling tube is aligned with an opening end of the blood collection tube, an air pump is coaxially arranged at the top of the centrifuge, an air inlet pipe is connected to one end of the air pump, the air inlet pipe is connected to a soft catheter through a downwardly deflected hard tube, a plurality of collecting tubes are evenly arranged at the top of the centrifuge, one end of the soft catheter is clamped on the free end of the disposable sampling tube through a sealing cap, and the other end of the soft catheter is aligned with the bottom wall of the collecting tube; the quantitative collection component and the metering component arranged in the invention can enable the device to quantitatively take blood components in the blood collection tube, thereby improving the efficiency of the experimenter.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more specifically, to a human blood separation device for hematology. Background Art

[0002] Blood is a red, opaque, viscous liquid that flows in human blood vessels and heart. It is mainly composed of plasma and blood cells. It is common in clinical practice to classify, store and use whole blood components according to the items that need to be tested. The main separation method is centrifugal stratification.

[0003] However, since the single collection amount of blood samples needs to be limited to avoid bleeding symptoms in patients, multiple blood draws are usually required when conducting multiple blood-related tests at the same time. Existing blood separation devices make it difficult to quantitatively extract the required blood components after completing the separation of blood components, which can easily cause sample waste, increase the number of blood draws, and thus extend the inspection cycle of inspectors, reducing the effectiveness of the device. Summary of the invention

[0004] The present invention provides a human blood separation device for hematology to solve the problem that the blood separation device in the prior art is difficult to quantitatively extract the required blood components after completing the blood component separation, which easily causes sample waste, increases the number of blood draws, and thus prolongs the inspection cycle of the inspector and reduces the use effect of the device.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A human blood separation device for hematology, comprising a centrifuge and a quantitative collection component, wherein the outer side of the centrifuge is rotatably connected to a plurality of fixed splints through a plurality of pairs of connecting plates, the quantitative collection component comprises a telescopic rod fixedly connected to one side of each of the fixed splints, a clamp is provided at the output rod end of the telescopic rod, a disposable sampling tube is fixedly provided at one end of the clamp, a blood collection tube is provided at one side of the fixed splint, the sampling end of the disposable sampling tube is aligned with the opening end of the blood collection tube, an air pump is coaxially provided at the top of the centrifuge, an air inlet pipe is connected to one end of the air pump, the air inlet pipe is connected to a soft catheter through a downwardly deflected hard tube, a plurality of collection tubes are evenly arranged at the top of the centrifuge, one end of the soft catheter is clamped at the free end of the disposable sampling tube through a sealing cap, and the other end of the soft catheter is aligned with the bottom wall of the collection tube.

[0007] Preferably, a metering component is provided at the top of the centrifuge, and the metering component includes a plurality of quantitative plates slidably mounted at the top of the centrifuge, the quantitative plates are provided with scales, the top of the quantitative plates are connected to an arc frame, and photosensitive plates and ray emitters are respectively provided at both ends of the arc frame, and the photosensitive plates and the ray emitters are arranged relatively to each other.

[0008] Preferably, the fixed splint is slidably clamped with a movable splint through a clamping block, an ear plate is provided on one side of the movable splint, a screw is threaded on the ear plate, one end of the screw is rotatably clamped on one side of the fixed splint, and one end of the screw is coaxially connected to a knob.

[0009] Preferably, a pair of guide plates are provided on the movable splint, a sliding plate is provided between the two guide plates, a limiting plate is provided at one end of the sliding plate, a magnetic block is provided at one end of the limiting plate, a magnetic seat is provided on one side of any guide plate, and the magnetic seat is aligned with the magnetic block along the extension direction of the sliding plate.

[0010] Preferably, a rotating shaft is provided at one end of the sliding plate, a first end plate is provided at one end of the rotating shaft, an end cover is rotatably connected to the rotating shaft, the end cover is provided on the opening end of the blood collection tube, a second end plate is provided on the outer side of the end cover, the first end plate and the second end plate are connected by a first spring, an opening is provided at the center of the end cover, a plurality of valves are evenly provided in the opening, and the opening direction of the valve points to the inner bottom wall of the blood collection tube.

[0011] Preferably, a buffer assembly is provided on the fixed splint, and the buffer assembly includes a connecting frame slidably clamped at the bottom end of the fixed splint, a buffer seat is connected to the top end of the connecting frame, the bottom end of the connecting frame is connected to the fixed splint through a second spring, and a magnetic button provided on one side of the connecting frame is attracted to another magnetic button provided at the bottom end of the fixed splint.

[0012] Preferably, a posture adjustment component is provided at the bottom end of the fixed splint, and the posture adjustment component includes connecting rods provided at both sides of the fixed splint, a rotating cylinder is rotatably provided between the two connecting rods, and a connecting plate is connected to the outer side of the rotating cylinder.

[0013] Preferably, a rotating sleeve controlled by a motor is provided at the bottom end of the centrifuge, a rotating ring is slidingly provided on the rotating sleeve, a plurality of rotating plates are evenly arranged on the outer side of the rotating ring, each of the rotating plates is hinged with a pair of adjusting plates, and each pair of the adjusting plates is hinged with a free end of the connecting plate.

[0014] The principle and beneficial effects of this technical solution:

[0015] (1) The quantitative collection component and metering component provided in the present invention can enable the device to quantitatively take the blood components in the blood collection tube. The centrifuge is started. After centrifugation is completed, the quantitative plate is slid along the top of the centrifuge according to the required test sample volume until the scale reading at the bottom of the quantitative plate corresponds to the required sample volume. At this time, the telescopic rod is driven to shorten, and the disposable sampling tube is placed in the blood components to be collected. The air pump is started, and the air pump will absorb the gas in the soft catheter through the air inlet pipe. The blood components at the sampling end of the disposable sampling tube will be sucked into the soft catheter. The air pump is intermittently turned on and off to enter the soft catheter. After entering the mass transfer tube, it will eventually enter the collecting tube under the influence of gravity. When the sample volume in the collecting tube reaches the required sampling volume, since the top of the quantitative plate is connected to an arc frame, and the two ends of the arc frame are respectively provided with a photosensitive plate and a ray emitter. Due to the difference in light transmittance between the liquid components in the blood components and the air, when the liquid level is higher than the emission point of the ray emitter, the photosensitive plate will stop receiving the light signal from the ray emitter. At this time, the photosensitive plate sends a signal to the air pump, and the air pump will be directly shut down to stop sampling. The experimenter can now take the blood component samples in the collecting tube.

[0016] (2) The fixed splint, movable splint and buffer assembly provided in the present invention can all help the device to fix the blood collection tube. When the blood collection tube needs to be fixed to the fixed splint, the blood collection tube is first slid along the groove on one side of the fixed splint so that the blood collection tube presses down the buffer seat in the buffer assembly. At this time, the buffer seat will drive the connecting frame provided at its bottom end to move downward until the magnetic button provided at one side of the connecting frame is attracted to another magnetic button provided at the bottom end of the fixed splint. At this time, the screw on one side of the fixed splint is rotated until the movable splint and the fixed splint clamp the blood collection tube together. Then, the sliding plate between the two guide plates can be slid, and at the same time, the end cover hinged at one end of the sliding plate through the rotating shaft is pressed. When the blood collection tube needs to be removed, the sliding plate is pushed up to attract the magnetic seat and the magnetic block, and the first spring will drive the end cover to return to its original position.

[0017] (3) The posture adjustment component provided in the present invention can help the experimenter to place the blood collection tube. When the posture adjustment component is used, the rotating sleeve is driven to rotate by the motor. At this time, the sliding ring on the rotating sleeve will rotate together with the rotating plate, and the rotating plate will pull the connecting plate to move through the adjustment plate. Since the connecting plate is arranged on the outside of the rotating drum, the movement of the connecting plate will eventually pull the connecting rod where the rotating drum is located to move, and the fixed splint where the connecting rod is located will rotate along the connecting plate on the outside of the centrifuge, thereby changing the angle of the fixed splint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure after the present invention is split;

[0020] Figure 3 for Figure 2Schematic diagram of the enlarged structure of the A area in the middle;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0022] Figure 5 It is a schematic diagram of the structure of some components of the present invention in an assembled state;

[0023] The reference numerals in the drawings of the specification include: 1, centrifuge; 2, clamp; 3, disposable sampling tube; 4, telescopic rod; 5, connecting plate; 6, blood collection tube; 7, air inlet pipe; 8, air pump; 9, rotating shaft; 10, first end plate; 11, sliding plate; 12, guide plate; 13, magnetic seat; 14, limit plate; 15, magnetic block; 16, knob; 17, first spring; 18, end cover; 19, second end plate; 20, movable splint; 21, Ear plate; 22, screw; 23, block; 24, buffer seat; 25, connecting frame; 26, second spring; 27, magnetic button; 28, rotating drum; 29, fixed clamp; 30, connecting rod; 31, adjustment plate; 32, connecting plate; 33, sealing cap; 34, photosensitive plate; 35, soft catheter; 36, arc frame; 37, ray emitter; 38, quantitative plate; 39, collecting tube; 40, swivel; 41, rotating plate; 42, rotating sleeve. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0025] Example:

[0026] like Figures 1 to 5 As shown, the present invention provides a human blood separation device for hematology, comprising a centrifuge 1 and a quantitative collection component, wherein a plurality of fixed splints 29 are rotatably connected to the outer side of the centrifuge 1 through a plurality of pairs of connecting plates 5, the quantitative collection component comprises a telescopic rod 4 fixedly connected to one side of each fixed splint 29, a clamp 2 is arranged at the output rod end of the telescopic rod 4, a disposable sampling tube 3 is fixedly arranged at one end of the clamp 2, a blood collection tube 6 is arranged at one side of the fixed splint 29, a sampling end of the disposable sampling tube 3 is aligned with an open end of the blood collection tube 6, an air pump 8 is coaxially arranged at the top of the centrifuge 1, an air inlet pipe 7 is connected to one end of the air pump 8, the air inlet pipe 7 is connected to a soft catheter 35 through a downwardly deflected hard tube, a plurality of collecting tubes 39 are evenly arranged at the top of the centrifuge 2, one end of the soft catheter 35 is clamped at the free end of the disposable sampling tube 3 through a sealing cap 33, and the other end of the soft catheter 35 is aligned with the bottom wall of the collecting tube 39.

[0027] like Figure 1 and Figure 5As shown, a metering assembly is provided at the top of the centrifuge 1, and the metering assembly includes a plurality of quantitative plates 38 slidably mounted at the top of the centrifuge 1, and scales are provided on the quantitative plates 38. An arc frame 36 is connected to the top of the quantitative plates 38, and a photosensitive plate 34 and a ray emitter 37 are respectively provided at both ends of the arc frame 36, and the photosensitive plate 34 and the ray emitter 37 are arranged opposite to each other.

[0028] like Figure 3 and Figure 4 As shown, the fixed splint 29 is slidably clamped with the movable splint 20 through the clamping block 23, and an ear plate 21 is provided on one side of the movable splint 20. A screw 22 is screwed on the ear plate 21. One end of the screw 22 is rotatably clamped on one side of the fixed splint 29, and one end of the screw 22 is coaxially connected with the knob 16.

[0029] like Figure 3 As shown, a pair of guide plates 12 are arranged on the movable splint 20, a sliding plate 11 is slidingly arranged between the two guide plates 12, a limiting plate 14 is arranged at one end of the sliding plate 11, a magnetic block 15 is arranged at one end of the limiting plate 14, a magnetic seat 13 is arranged on one side of any guide plate 12, and the magnetic seat 13 is aligned with the magnetic block 15 along the extension direction of the sliding plate 11.

[0030] like Figure 2 and Figure 3 As shown, a rotating shaft 9 is provided at one end of the sliding plate 11, a first end plate 10 is provided at one end of the rotating shaft 9, an end cover 18 is rotatably connected to the rotating shaft 9, the end cover 18 is covered on the open end of the blood sampling tube 6, a second end plate 19 is provided on the outer side of the end cover 18, the first end plate 10 and the second end plate 19 are connected by a first spring 17, an opening is provided in the center of the end cover 18, a plurality of valves are evenly arranged in the opening, and the opening direction of the valve points to the inner bottom wall of the blood sampling tube 6.

[0031] The fixed splint 29, the movable splint 20 and the buffer assembly can all help the device to fix the blood collection tube 6. When the blood collection tube 6 needs to be fixed to the fixed splint 29, first slide the blood collection tube 6 along the groove on one side of the fixed splint 29, so that the blood collection tube 6 presses down the buffer seat 24 in the buffer assembly. At this time, the buffer seat 24 will drive the connecting frame 25 set at its bottom end to move downward, so that the second spring 26 between the connecting frame 25 and the fixed splint 29 is stretched until the magnetic button 27 set on one side of the connecting frame 25 is attracted to the other magnetic button 27 set at the bottom end of the fixed splint 29. At this time, the screw 22 on one side of the fixed splint 29 is rotated, and the screw 22 will drive the hinge on it. The connected ear plate 21 and the movable splint 20 move along the clamping block 23 until the movable splint 20 and the fixed splint 29 clamp the blood collection tube 6 together, and then the sliding plate 11 between the two guide plates 12 can be slid, and at the same time, the end cover 18 hinged by the rotating shaft 9 at one end of the sliding plate 11 is pressed until the end cover 18 covers the opening of the blood collection tube 6. At this time, the first spring 17 between the first end plate 10 and the second end plate 19 is compressed, and at the same time, the magnetic block 15 at one end of the magnetic base 13 and the limit plate 14 is disengaged. When the blood collection tube 6 needs to be removed, the sliding plate 11 is pushed up to make the magnetic base 13 and the magnetic block 15 attract each other, and the first spring 17 will drive the end cover 18 to reset.

[0032] like Figure 4 As shown, a buffer assembly is provided on the fixed splint 29, and the buffer assembly includes a connecting frame 25 slidably clamped at the bottom end of the fixed splint 29, a buffer seat 24 is connected to the top end of the connecting frame 25, the bottom end of the connecting frame 25 is connected to the fixed splint 29 through a second spring 26, and a magnetic button 27 provided on one side of the connecting frame 25 is attracted to another magnetic button 27 provided at the bottom end of the fixed splint 29.

[0033] like Figure 4 As shown, a posture adjustment assembly is provided at the bottom end of the fixed splint 29, and the posture adjustment assembly includes connecting rods 30 arranged on both sides of the fixed splint 29, a rotating cylinder 28 is rotatably provided between the two connecting rods 30, and a connecting plate 32 is connected to the outer side of the rotating cylinder 28.

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, a rotating sleeve 42 controlled by a motor is provided at the bottom of the centrifuge 1, a rotating ring 40 is slidably provided on the rotating sleeve 42, and a plurality of rotating plates 41 are evenly arranged on the outer side of the rotating ring 40, each rotating plate 41 is hinged with a pair of adjusting plates 31, and each pair of adjusting plates 31 is hinged with a free end of a connecting plate 32.

[0035] The posture adjustment component can help the experimenter place the blood collection tube 6. When the posture adjustment component is used, the rotating sleeve is driven to rotate by the motor. At this time, the sliding ring 40 on the rotating sleeve will rotate together with the rotating plate 41, and the rotating plate 41 will pull the connecting plate 32 to move through the adjusting plate 31. Since the connecting plate 32 is arranged on the outside of the rotating drum 28, the movement of the connecting plate 32 will eventually pull the connecting rod 30 where the rotating drum 28 is located to move, and the fixed splint 29 where the connecting rod 30 is located will rotate along the connecting plate 5 on the outside of the centrifuge 1, thereby changing the angle of the fixed splint 29.

[0036] The specific usage and function of this embodiment are as follows:

[0037] The quantitative collection component and metering component provided in the present invention can enable the device to quantitatively take the blood components in the blood collection tube 6. After the blood collection is completed through the blood collection tube 6 and is stored for a period of time, the blood collection tube 6 is placed on a fixed clamp 29 fixed in a vertical position, and then the posture adjustment component is adjusted so that one side of the fixed clamp 29 is in contact with the outer side of the centrifuge 1. At this time, the centrifuge 1 is started. After centrifugation is completed, the quantitative plate 38 is slid along the top of the centrifuge 1 according to the required test sample volume until the scale indication at the bottom of the quantitative plate 38 corresponds to the required sample volume. At this time, the telescopic rod 4 is driven to shorten, and the disposable sampling tube 3 connected to the output rod end of the telescopic rod 4 through the clamp 2 will move toward the blood collection tube 6. After the disposable sampling tube 3 squeezes the valve at the open end of the blood collection tube 6 and is placed in the blood component to be collected, the air pump 8 is started, and the air pump 8 will absorb the gas in the soft catheter 35 through the air inlet pipe 7, wherein the end of the soft catheter 35 facing the bottom wall of the collecting tube 39 is provided There is a one-way valve, so the air pressure at one end of the soft catheter 35 connected to the sealing cap 33 decreases, and the air pressure in the disposable sampling tube 3 connected to the sealing cap 33 decreases synchronously, and the blood components at the sampling end of the disposable sampling tube 3 will be sucked into the soft catheter 35, and the air pump 8 is intermittently turned on and off. After entering the soft catheter 35, it will eventually enter the collection tube 39 under the influence of gravity. When the sample volume in the collection tube 39 reaches the required sampling volume, since the top of the quantitative plate 38 is connected to the arc frame 36, and the two ends of the arc frame 36 are respectively provided with a photosensitive plate 34 and a ray emitter 37. Since there is a difference in the light transmittance of the liquid component in the blood component and the air, when the liquid level is higher than the emission point of the ray emitter 37, the photosensitive plate 34 will stop receiving the light signal from the ray emitter 37. At this time, the photosensitive plate 34 sends a signal to the air pump 8, and the air pump 8 will be directly closed to stop sampling. At this time, the experimenter can take the blood component sample in the collection tube 39.

[0038] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A human blood separation device for hematology, characterized in that: The invention comprises a centrifuge (1) and a quantitative collection component, wherein the outer side of the centrifuge (1) is rotatably connected to a plurality of fixed splints (29) via a plurality of pairs of connecting plates (5), and the quantitative collection component comprises a telescopic rod (4) fixedly connected to one side of each of the fixed splints (29), a clamp (2) being provided at the output rod end of the telescopic rod (4), a disposable sampling tube (3) being fixedly provided at one end of the clamp (2), a blood collection tube (6) being provided at one side of the fixed splint (29), and a sampling end of the disposable sampling tube (3) being connected to the sampling end of the fixed splint (29). The open ends of the blood sampling tubes (6) are aligned, an air pump (8) is coaxially arranged at the top of the centrifuge (1), one end of the air pump (8) is connected to an air inlet pipe (7), the air inlet pipe (7) is connected to a soft conduit (35) through a downwardly inclined hard tube, a plurality of collection tubes (39) are evenly arranged at the top of the centrifuge (1), one end of the soft conduit (35) is clamped on the free end of the disposable sampling tube (3) through a sealing cap (33), and the other end of the soft conduit (35) is aligned with the bottom wall of the collection tube (39); The centrifuge (1) is provided with a metering assembly at the top thereof, the metering assembly comprising a plurality of quantitative plates (38) slidably mounted at the top of the centrifuge (1), the quantitative plates (38) being provided with scales, the top of the quantitative plates (38) being connected with an arc frame (36), the two ends of the arc frame (36) being provided with a photosensitive plate (34) and a ray emitter (37), the photosensitive plate (34) and the ray emitter (37) being arranged opposite to each other; The fixed clamping plate (29) is slidably clamped with a movable clamping plate (20) through a clamping block (23); a lug plate (21) is provided on one side of the movable clamping plate (20); a screw rod (22) is screwed on the lug plate (21); one end of the screw rod (22) is rotatably clamped on one side of the fixed clamping plate (29); and one end of the screw rod (22) is coaxially connected with a knob (16); A pair of guide plates (12) are arranged on the movable clamp plate (20), a sliding plate (11) is slidably arranged between the two guide plates (12), a limiting plate (14) is arranged at one end of the sliding plate (11), a magnetic block (15) is arranged at one end of the limiting plate (14), a magnetic seat (13) is arranged on one side of any guide plate (12), and the magnetic seat (13) and the magnetic block (15) are aligned along the extension direction of the sliding plate (11); A rotating shaft (9) is arranged at one end of the sliding plate (11), a first end plate (10) is arranged at one end of the rotating shaft (9), an end cover (18) is rotatably connected to the rotating shaft (9), the end cover (18) is arranged on the open end of the blood sampling tube (6), a second end plate (19) is arranged on the outer side of the end cover (18), the first end plate (10) and the second end plate (19) are connected by a first spring (17), an opening is opened in the center of the end cover (18), a plurality of valves are evenly arranged in the opening, and the opening direction of the valve points to the inner bottom wall of the blood sampling tube (6).

2. A hematology human blood separation device according to claim 1, characterized in that: The fixed clamping plate (29) is provided with a buffer assembly, and the buffer assembly includes a connecting frame (25) slidably clamped at the bottom end of the fixed clamping plate (29), the top end of the connecting frame (25) is connected to a buffer seat (24), the bottom end of the connecting frame (25) is connected to the fixed clamping plate (29) through a second spring (26), and a magnetic button (27) arranged on one side of the connecting frame (25) is attracted to another magnetic button (27) arranged at the bottom end of the fixed clamping plate (29).

3. A human blood separation device for hematology according to claim 2, characterized in that: A posture adjustment component is arranged at the bottom end of the fixed splint (29), and the posture adjustment component comprises connecting rods (30) arranged on both sides of the fixed splint (29), a rotating cylinder (28) is rotatably arranged between the two connecting rods (30), and a connecting plate (32) is connected to the outer side of the rotating cylinder (28).

4. A human blood separation device for hematology according to claim 3, characterized in that: The bottom end of the centrifuge (1) is provided with a rotating sleeve (42) controlled by a motor, a rotating ring (40) is slidably clamped on the rotating sleeve (42), a plurality of rotating plates (41) are evenly arranged on the outer side of the rotating ring (40), each of the rotating plates (41) is hinged with a pair of adjustment plates (31), and each pair of the adjustment plates (31) is hinged with a free end of a connecting plate (32).

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