CN112547319B - Blood treatment device for blood transfusion department - Google Patents
Blood treatment device for blood transfusion department Download PDFInfo
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- CN112547319B CN112547319B CN202011317583.2A CN202011317583A CN112547319B CN 112547319 B CN112547319 B CN 112547319B CN 202011317583 A CN202011317583 A CN 202011317583A CN 112547319 B CN112547319 B CN 112547319B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B11/00—Feeding, charging, or discharging bowls
- B04B11/04—Periodical feeding or discharging; Control arrangements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
- B04B5/0414—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles comprising test tubes
Abstract
The invention discloses a blood treatment device for a transfusion department, and belongs to the technical field of medical equipment. The blood processing device comprises a first piston head of a subpackaging mechanism arranged in the centrifugal tube; the piston rod is connected with the first piston head, a through hole for the piston rod to penetrate out is formed in a tube cover of the centrifugal tube, and the piston rod is connected with the through hole in the tube cover in a sealing mode; the piston driving mechanism is used for driving the first piston head to move up and down; the separation channel is arranged on the pipe cover and is provided with a liquid inlet and a liquid outlet; the sealing plug is arranged in the separation channel and used for sealing and opening the liquid inlet and the liquid outlet; the plugging driving mechanism is used for driving the plugging plug to move along the separation channel; the sub-packaging pipe is connected with a liquid outlet of the separation channel and is connected with an inflation air exhaust device. The blood processing device of the invention not only can realize automatic subpackage of separated blood components, but also provides power for a plurality of mechanisms only through the inflating and air extracting device, thereby having lower cost.
Description
Technical Field
The invention relates to the technical field of blood treatment devices, in particular to a blood treatment device for a transfusion department.
Background
The clinical transfusion work of the shoulder of the department of blood transfusion, it is clinical and participated in clinical first aid and critical patient's treatment key department, the routine work of the department of blood transfusion has specimens to sample, appraise the blood group, check and cross matching blood before the blood transfusion, etc., have guaranteed the clinical safe, effective, scientific blood transfusion.
The blood centrifuge is one of the blood processing devices commonly used in the department of blood transfusion, and two components of plasma or serum cannot be directly separated from blood and need to be obtained by centrifugal separation through the blood centrifuge. The centrifugal principle of the centrifuge is that the blood components are separated by centrifugal force according to different specific gravities, and separated plasma or serum is obtained.
The centrifuge in the prior art can only realize the layering of different components in whole blood, generally still must rely on the staff to borrow tools such as pipette to realize the transfer separation of each layer component, and work load is big, and in the process of pipetting, the centrifuging tube is in the open state, has increased the risk of being infected, therefore the invention provides a low-cost centrifuge apparatus that can greatly reduce staff's work load, and can realize separating each layer after centrifuging completely in closed environment.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a blood processing device for transfusion department.
The invention provides a blood treatment device for a transfusion department, which comprises an outer shell, wherein a cover body is hinged on the outer shell;
the centrifugal chamber is arranged in the outer shell, a centrifugal tube mounting frame is arranged in the centrifugal chamber, and a centrifugal tube is fixed on the centrifugal tube mounting frame;
the motor is arranged at the bottom of the centrifugal chamber and used for rotating the centrifugal chamber; it is characterized by also comprising a split charging mechanism which comprises
A first piston head disposed within the centrifuge tube;
the piston rod is connected with the first piston head, a through hole for the piston rod to penetrate out is formed in a tube cover of the centrifugal tube, and the piston rod is connected with the through hole in the tube cover in a sealing mode;
the piston driving mechanism is used for driving the first piston head to move up and down;
the separation channel is arranged on the tube cover, and is provided with a liquid inlet and a liquid outlet, and the liquid inlet is communicated with the centrifuge tube;
the sealing plug is arranged in the separation channel and used for sealing and opening the liquid inlet and the liquid outlet;
the blocking driving mechanism is used for driving the blocking plug to move along the separation channel to open and block the liquid inlet and the liquid outlet;
the sub-packaging pipes are connected with the liquid outlet of the separation channel, each centrifugal pipe at least corresponds to one sub-packaging pipe, and each sub-packaging pipe is connected with an inflatable air exhaust device.
Preferably, the piston drive mechanism comprises
The top of the first sealing cylinder is provided with a sealing plate;
the second piston head is arranged in the first sealing cylinder and can be clamped with the piston rod;
the second sealing cylinder is arranged outside the first sealing cylinder and is formed by sealing and sleeving a plurality of sleeves, the sealing plate is fixedly connected with the top of the second sealing cylinder, and the bottom of the second sealing cylinder is clamped with the pipe cover;
the top of the first sealing cylinder is connected with an inflation and air-extraction device through a first connecting pipe, so that the second piston head moves upwards in an air-extraction state and moves downwards in an inflation state, and the side wall of the second sealing cylinder is connected with the inflation and air-extraction device through a second connecting pipe, so that air is filled or extracted into a gap between the first sealing cylinder and the second sealing cylinder below the sealing plate;
and the first connecting pipe and the second connecting pipe are both provided with first electromagnetic valves, and the first electromagnetic valves and the air inflation and air exhaust device are both connected with controllers.
Preferably, a soft sealing lining is arranged inside the second sealing barrel, and the end part of the second connecting pipe connected with the second sealing barrel is positioned inside the sealing lining.
Preferably, separation channel's length satisfies and to hold two shutoff heads at least, the shutoff stopper includes first shutoff head, second shutoff head and connecting rod, first shutoff head and second shutoff head are fixed respectively at the both ends of connecting rod, just first shutoff head, second shutoff head and separation channel's inner wall sealing connection, the one end that separation channel is close to the tube cap outward flange is passed through the third connecting pipe and is connected with aerifing air exhaust device, the partial shipment pipe pass through the fourth connecting pipe with aerify air exhaust device and connect, the second solenoid valve on the fourth connecting pipe, inlet department is equipped with density sensor, second solenoid valve and density sensor all with controller signal connection.
Preferably, the tube cover is further provided with a liquid inlet cavity with the same diameter as the upper opening of the centrifuge tube, the top of the liquid inlet cavity is communicated with the liquid inlet, the bottom of the liquid inlet cavity is provided with a plurality of through holes communicated with the centrifuge tube, the plurality of through holes are uniformly distributed on a plurality of concentric circles using the liquid inlet as the circle center, the hole diameter of each through hole on each concentric circle is equal, and the hole diameter of each through hole on each concentric circle is increased along with the increase of the diameter of the concentric circle.
Preferably, pressure sensors are arranged in the first sealing cylinder, the second sealing cylinder and the separation channel, and each pressure sensor is electrically connected with the controller.
Preferably, the top of the second piston head is provided with a vacuum chuck.
Preferably, the center department in the centrifugal chamber is located to the air exhaust device that aerifys, and the air exhaust device top is equipped with height-adjustable's back shaft, be equipped with the mounting bracket on the back shaft, the tube cap and set up above that first sealed section of thick bamboo, the sealed section of thick bamboo of second and the partial shipment pipe are all established on the mounting bracket.
Preferably, the split charging pipe is provided with a liquid level sensor, and the liquid level sensor is electrically connected with the controller.
Preferably, the supporting shaft is a hydraulic lifting rod.
Compared with the prior art, the invention has the beneficial effects that: the blood processing device is based on the existing centrifuge, the split charging mechanism is additionally arranged and driven by gas, so that the energy is saved, the environment is protected, the weight and the cost of the whole structure are greatly reduced, the split charging device can automatically separate layered liquid after centrifugation, the whole separation process is positioned in the outer shell, the probability of blood infection is reduced, the workload of workers is reduced, and the problem that the workers have large infection risk when contacting with samples due to large workload in a special period is solved.
The invention only needs one pneumatic device, and the blocking plug moves along the separation channel in a gas pumping or charging mode, thereby realizing the purpose of opening and blocking the liquid outlet and the liquid inlet; simultaneously aerify air exhaust device still be connected with piston actuating mechanism and be used for realizing reciprocating of first piston head, through the liquid height of first piston head rebound improvement separating tube, make liquid get into the inlet smoothly, realized the high-efficient partial shipment of component blood after the layering.
According to the invention, the first sealing cylinder and the second sealing cylinder are sleeved, and the second sealing cylinder is formed by sealing and sleeving a plurality of sleeves, under the air exhaust state, the second piston head in the first sealing cylinder can move upwards until the vacuum sucker on the second sealing cylinder is firmly adsorbed on the sealing plate, then continuous air exhaust is carried out, meanwhile, the gap between the cylinder walls of the first sealing cylinder and the second sealing cylinder is inflated, so that the first sealing cylinder is lifted along the cylinder wall of the second sealing cylinder, and the first piston head is lifted again, wherein the first sealing cylinder and the second sealing cylinder are subjected to corresponding height change according to the concrete condition that the liquid level needs to be lifted through a smart design, and can be lowered to the initial position after the split charging is finished, so that the occupied space of the first sealing cylinder and the second sealing cylinder is saved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of the working principle of the present invention;
FIG. 3 is a schematic structural view of a piston driving mechanism according to the present invention;
FIG. 4 is a schematic view of the structure of a separation channel according to the present invention;
FIG. 5 is a schematic layout view of through holes at the bottom of the tube cover according to the present invention.
Description of reference numerals:
1. the centrifugal centrifuge comprises an outer shell, a cover body, a centrifugal chamber, a centrifugal tube mounting frame, a centrifugal tube, a tube cover 331, a through hole, a first piston head 5, a piston rod 6, a piston driving mechanism 7, a first sealing cylinder 71, a sealing plate 72, a second piston head 73, a second sealing cylinder 74, a first connecting tube 75, a second connecting tube 76, a separation channel 8, a liquid inlet 81, a liquid outlet 82, a blocking plug 9, a first blocking head 91, a second blocking head 92, a connecting rod 93, a split charging tube 11, an inflation and air exhaust device 12, a third connecting tube 13, a fourth connecting tube 14, a vacuum chuck 15, a fixed shaft 16 and a mounting frame 17.
Detailed Description
Detailed description of the preferred embodimentsthe following detailed description of the present invention will be made with reference to the accompanying drawings 1-5, although it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a blood processing apparatus for transfusion department, which includes an outer casing 1, on which a cover 2 is hinged; the centrifugal chamber 3 is arranged in the outer shell 1, a centrifugal tube mounting frame 31 is arranged in the centrifugal chamber, and a centrifugal tube 32 is fixed on the centrifugal tube mounting frame 31; the motor is arranged at the bottom of the centrifugal chamber 3 and used for rotating the centrifugal chamber 3;
as shown in fig. 2, the centrifuge tube further comprises a dispensing mechanism, which comprises a first piston head 5, disposed in the centrifuge tube 32; the piston rod 6 is connected with the first piston head 5, a through hole for the piston rod 6 to penetrate out is formed in the tube cover 33 of the centrifugal tube 32, and the piston rod 6 is connected with the through hole in the tube cover 33 in a sealing mode; a piston driving mechanism 7 for driving the first piston head 5 to move up and down; the separation channel 8 is arranged on the tube cover 33, a liquid inlet 81 and a liquid outlet 82 are arranged on the separation channel 8, and the liquid inlet 81 is communicated with the centrifugal tube 32; the sealing plug 9 is arranged in the separation channel 8 and used for sealing and opening the liquid inlet 81 and the liquid outlet 82; the sealing plug driving mechanism is used for driving the sealing plug 9 to move along the separation channel 8 to open and close the liquid inlet 81 and the liquid outlet 82; the sub-packaging tubes 11 are connected with the liquid outlet 82 of the separation channel 8, each centrifugal tube 32 at least corresponds to one sub-packaging tube 11, and the sub-packaging tubes 11 are connected with an air inflation and air extraction device 12.
In the embodiment, the split charging mechanism is additionally arranged on the basis of the existing centrifugal machine, the first piston head 5 of the split charging mechanism is used for lifting the liquid level in the centrifugal pipe 32 so as to split charging the separated component blood, and the liquid inlet 81 is positioned on the surface of the liquid level, so that the component blood can be sucked and split charged from top to bottom, the phenomenon that the component blood is mixed again due to the fact that the liquid inlet is positioned in the liquid is avoided, and the split charging effect is reduced;
in the embodiment, after the centrifuge finishes separation, the component blood is layered in the separation tube 32, then the piston driving mechanism drives the first piston head 5 to move up and down until the liquid level contacts with the liquid inlet, the blocking plug 9 moves along the length direction of the blocking separation channel 8 through the blocking plug driving mechanism, the liquid inlet 81 and the liquid outlet 82 are opened, the air inflation and air extraction device 12 performs air extraction, the sub-packaging tube 11 forms negative pressure to start sucking sub-packaging component blood until the sub-packaging of the same component blood is finished; it should be noted that the number of the subpackaging pipes 11 can be correspondingly increased according to the types of the component blood to be subpackaged, the whole separation device of the embodiment is arranged in the centrifuge, and the staff does not need to directly contact with the blood to separate the centrifuged component blood, thereby reducing the infection risk.
It should be noted that the outer casing 1 and the tube cover 33 may be made of transparent materials so as to observe the inside of the outer casing.
Example 2
On the basis of embodiment 1, as shown in fig. 2 and 3, the piston driving mechanism 7 includes a first sealing cylinder 71, and a sealing plate 72 is provided on the top; the second piston head 73 is arranged in the first sealing cylinder 71, and the second piston head 73 can be clamped with the piston rod 6; the second sealing cylinder 74 is arranged outside the first sealing cylinder 71, the second sealing cylinder 74 is formed by sealing and sleeving a plurality of sleeves, the sealing plate 72 is fixedly connected with the top of the second sealing cylinder 74, and the bottom of the second sealing cylinder 74 is clamped with the pipe cover 33; the top of the first sealing cylinder 71 is connected with the inflation and air-extraction device 12 through a first connecting pipe 75, so that the second piston head 73 moves upwards in an air-extraction state and moves downwards in an air-extraction state, the side wall of the second sealing cylinder 74 is connected with the inflation and air-extraction device 12 through a second connecting pipe 76, and the gap between the first sealing cylinder 71 and the second sealing cylinder 74 below the sealing plate 72 is inflated or extracted; the first connecting pipe 75 and the second connecting pipe 76 are both provided with a first electromagnetic valve, and the first electromagnetic valve and the inflation and air-extraction device 12 are both connected with a controller.
The upward movement of the first piston head 5 of the embodiment depends on the negative pressure generated by the air pumping of the air pumping device 12, the resetting depends on the air pumping of the air pumping device 12, and the movement of the first piston head 5 is realized in a pneumatic mode, so that the equipment cost can be reduced, and the weight of the whole device can be reduced.
In addition, due to the matching of the first sealing cylinder 71 and the second sealing cylinder 74 and the fact that the second sealing cylinder 74 is a cylinder body with variable height, the height of the whole sealing cylinder can be adjusted according to the distance raised by the liquid level, the first piston can be contracted when being positioned at the bottom of the centrifugal tube, the occupied space is reduced, the height adjustment of the second sealing cylinder 74 also depends on the air inflation and air extraction device 12, and a new power source does not need to be additionally arranged.
Preferably, a soft seal liner is provided inside the second seal tube 74, and the end of the second connection tube 76 connected to the second seal tube 74 is located inside the seal liner. The sealing liner can improve the sealing performance of the second sealing cylinder 74 and can deform correspondingly with the expansion and contraction of the second sealing cylinder 74.
Example 3
On the basis of the above embodiments, as shown in fig. 4, the length of the separation channel 8 is at least long enough to accommodate two plugs 9, each plug 9 includes a first plug 91, a second plug 92 and a connecting rod 93, the first plug 91 and the second plug 92 are respectively fixed at two ends of the connecting rod 93, the first plug 91, the second plug 92 and the inner wall of the separation channel 8 are hermetically connected, one end of the separation channel 8 close to the outer edge of the tube cover 33 is connected with the inflation and air extraction device 12 through a third connecting tube 13, the dispensing tube 11 is connected with the inflation and air extraction device 12 through a fourth connecting tube 14, a second electromagnetic valve is arranged on the fourth connecting tube 14, and a density sensor is arranged at the liquid inlet 81 and is in signal connection with the controller.
The density change of the component blood is detected by the density sensor and is used as a judgment basis for distinguishing different component blood, when the density change is larger than the preset value of the controller, the controller controls the second electromagnetic valve to be closed, the component blood is not pumped, then the air-filling air-extracting device 12 is started to fill air into the third connecting pipe 13, the sealing plug 9 is enabled to seal the liquid inlet 81 and the liquid outlet 82 again, and the sub-packaging of the component blood is completed; the movement of the plug 9 is also dependent on the inflation and suction device 12, without the need to add a new power source, again reducing equipment cost and weight.
In order to further improve the dispensing effect, preferably, as shown in fig. 5, a liquid inlet cavity with the same diameter as the opening of the centrifugal tube 32 is further provided on the tube cover 33, the top of the liquid inlet cavity is communicated with the liquid inlet 81, the bottom of the liquid inlet cavity is provided with a plurality of through holes 331 communicated with the centrifugal tube 32, the plurality of through holes 331 are uniformly distributed on a plurality of concentric circles using the liquid inlet 81 as the center of circle, the through holes 331 on each concentric circle have the same aperture, and the aperture of the through hole 331 on each concentric circle increases along with the increase of the diameter of the concentric circle. The purpose is to reduce the disturbance to the stratified component blood in the suction process through the multipoint liquid feeding, avoid the mixing between different component blood caused by the split charging, and improve the split charging accuracy of the component blood.
Preferably, pressure sensors are disposed in the first and second sealing cylinders 71 and 74 and the separation channel 8, and each pressure sensor is electrically connected to the controller. Through setting up the pressure in the first sealed cylinder 71 and the second sealed cylinder 74 of more accurate detection of pressure sensor and separation channel 8, when the pressure that pressure sensor detected reached the setting value, then closed first solenoid valve, first sealed cylinder 71 and the pressure maintenance in the second sealed cylinder 74 need not to continue to aerify or bleed, and energy-conservation just can avoid can't realizing the technical purpose problem because of too big or undersize of pressure.
Preferably, the second piston head 73 is provided with a vacuum cup 15 on top. The connection stability of the second piston head 73 and the sealing plate 72 is better achieved.
In order to avoid the problem of winding of the connecting pipeline caused by the rotation of the centrifugal chamber, as a preferred mode, the air-filled air extractor 12 is arranged at the center in the centrifugal chamber 3, the top of the air-filled air extractor 12 is provided with a height-adjustable supporting shaft 16, the supporting shaft 16 is provided with a mounting frame 17, and the tube cover 33, the first sealing cylinder 71, the second sealing cylinder 74 and the sub-packaging tube 11 arranged on the tube cover are arranged on the mounting frame 17. The split charging tube 11 and the centrifugal tube 32 are in a relatively static state through the synchronous rotation of the air charging and exhausting device 12 and the centrifugal chamber, and it should be noted that the cover body 2 is provided with air holes communicated with the atmosphere as a passage for communicating the air charging and exhausting device 12 with the outside.
As another preferred embodiment, in order to avoid the problem that the liquid is still supplied after the dispensing tube 11 is filled, a liquid level sensor is arranged on the dispensing tube 11, the liquid level sensor is electrically connected with the controller, and the controller controls the second electromagnetic valve to close after the liquid level reaches the upper limit.
Preferably, the support shaft 16 is a hydraulic lifter.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A blood treatment device for transfusion department comprises
The outer shell (1) is hinged with a cover body (2);
the centrifugal chamber (3) is arranged in the outer shell (1), a centrifugal tube mounting frame (31) is arranged in the centrifugal chamber, and a centrifugal tube (32) is fixed on the centrifugal tube mounting frame (31);
the motor is arranged at the bottom of the centrifugal chamber (3) and is used for rotating the centrifugal chamber (3); it is characterized by also comprising a split charging mechanism which comprises
A first piston head (5) arranged in the centrifuge tube (32);
the piston rod (6) is connected with the first piston head (5), a through hole for the piston rod (6) to penetrate out is formed in a tube cover (33) of the centrifugal tube (32), and the piston rod (6) is connected with the through hole in the tube cover (33) in a sealing mode;
the piston driving mechanism (7) is used for driving the first piston head (5) to move up and down;
the separation channel (8) is arranged on the tube cover (33), a liquid inlet (81) and a liquid outlet (82) are formed in the separation channel (8), and the liquid inlet (81) is communicated with the centrifugal tube (32);
the sealing plug (9) is arranged in the separation channel (8) and is used for sealing and opening the liquid inlet (81) and the liquid outlet (82);
the sealing plug driving mechanism is used for driving the sealing plug (9) to move along the separation channel (8) to realize the opening and the sealing of the liquid inlet (81) and the liquid outlet (82);
the sub-packaging tube (11) is connected with a liquid outlet (82) of the separation channel (8), each centrifugal tube (32) at least corresponds to one sub-packaging tube (11), and the sub-packaging tubes (11) are connected with an air inflation and air extraction device (12).
2. The transfusion department blood treatment device according to claim 1, characterized in that the piston driving means (7) comprise
A first sealing cylinder (71) provided with a sealing plate (72) at the top;
the second piston head (73) is arranged in the first sealing cylinder (71), and the second piston head (73) can be clamped with the piston rod (6);
the second sealing cylinder (74) is arranged outside the first sealing cylinder (71), the second sealing cylinder (74) is formed by sealing and sleeving a plurality of sleeves, the sealing plate (72) is fixedly connected with the top of the second sealing cylinder (74), and the bottom of the second sealing cylinder (74) is clamped with the pipe cover (33);
the top of the first sealing cylinder (71) is connected with an inflation and air-extraction device (12) through a first connecting pipe (75) and is used for enabling the second piston head (73) to move upwards in an air-extraction state and move downwards in an air-inflation state, the side wall of the second sealing cylinder (74) is connected with the inflation and air-extraction device (12) through a second connecting pipe (76) and is used for inflating or extracting air in a gap between the first sealing cylinder (71) and the second sealing cylinder (74) below the sealing plate (72);
the first connecting pipe (75) and the second connecting pipe (76) are both provided with a first electromagnetic valve, and the first electromagnetic valve and the inflation and air extraction device (12) are both connected with a controller.
3. The transfusion department blood treatment apparatus according to claim 2, wherein the second sealing cylinder (74) is provided with a soft sealing liner inside, and the end of the second connection pipe (76) connected to the second sealing cylinder (74) is located inside the sealing liner.
4. The blood treatment apparatus for department of transfusion of claim 2, wherein the separation channel (8) has a length sufficient to accommodate at least two plugs (9), the plugs (9) comprise a first plug (91), a second plug (92) and a connecting rod (93), the first plug (91) and the second plug (92) are respectively fixed at two ends of the connecting rod (93), the first plug (91), the second plug (92) and the inner wall of the separation channel (8) are hermetically connected, one end of the separation channel (8) close to the outer edge of the tube cover (33) is connected with the air-filling and air-extracting device (12) through a third connecting tube (13), the dispensing tube (11) is connected with the air-filling and air-extracting device (12) through a fourth connecting tube (14), and a second solenoid valve is arranged on the fourth connecting tube (14), a density sensor is arranged at the liquid inlet (81), and the second electromagnetic valve and the density sensor are in signal connection with the controller.
5. The blood processing device for department of transfusion of claim 2, wherein the tube cover (33) is further provided with a liquid inlet cavity having a diameter equal to that of the opening of the centrifuge tube (32), the top of the liquid inlet cavity is communicated with the liquid inlet (81), the bottom of the liquid inlet cavity is provided with a plurality of through holes (331) communicated with the centrifuge tube (32), the plurality of through holes (331) are uniformly distributed on a plurality of concentric circles using the liquid inlet (81) as the center, the through holes (331) on each concentric circle have the same diameter, and the diameter of the through holes (331) on each concentric circle increases along with the increase of the diameter of the center circle.
6. The transfusion department blood treatment apparatus according to claim 2, wherein the first and second sealing cartridges (71, 74) and the separation passage (8) are provided therein with pressure sensors, each of which is electrically connected to the controller.
7. The transfusion department blood treatment device according to claim 2, characterized in that the second piston head (73) is provided with a vacuum cup (15) on top.
8. The blood treatment device for department of transfusion of claim 1, wherein the air-pumping device (12) is arranged at the center in the centrifugal chamber (3), the top of the air-pumping device (12) is provided with a supporting shaft (16) with adjustable height, the supporting shaft (16) is provided with a mounting frame (17), and the tube cover (33) and the first sealing cylinder (71), the second sealing cylinder (74) and the dispensing tube (11) arranged thereon are arranged on the mounting frame (17).
9. The transfusion department blood treatment apparatus according to claim 4, wherein a liquid level sensor is provided on the dispensing tube (11), and the liquid level sensor is electrically connected to the controller.
10. The transfusion department blood treatment apparatus according to claim 8, wherein the support shaft (16) is a hydraulic lifting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011317583.2A CN112547319B (en) | 2020-11-23 | 2020-11-23 | Blood treatment device for blood transfusion department |
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| CN202011317583.2A CN112547319B (en) | 2020-11-23 | 2020-11-23 | Blood treatment device for blood transfusion department |
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| CN112547319A CN112547319A (en) | 2021-03-26 |
| CN112547319B true CN112547319B (en) | 2022-03-29 |
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