Disclosure of utility model
In view of the above problems, an object of the present utility model is to provide a blood extraction device for a blood cell analyzer, which can extract plasma at one time and reduce waste of plasma as much as possible.
In order to achieve the above purpose, the blood extraction device for the blood cell analyzer comprises an electric telescopic frame and a detection module, wherein the electric telescopic frame is positioned on one side of a blood cell analyzer main body and is connected with a base, a plurality of clamping grooves I are formed in the electric telescopic frame, an extraction needle is arranged at one end of the extraction needle cylinder, a piston is movably connected to the inside of the extraction needle cylinder in a sealing mode, a push rod is arranged on the piston, one end of the push rod extends to the outside of the extraction needle cylinder, a plurality of detection cylinders are arranged on the electric telescopic frame and are in one-to-one correspondence with the positions of the plurality of clamping grooves I, when the extraction needle cylinder is arranged in the clamping grooves I, the extraction needle cylinder is positioned in the detection cylinder, the detection module is used for detecting the layering position between blood plasma and blood cells, and comprises a sensor connected with the bottom of the detection cylinder, a microprocessor electrically connected with the sensor and a controller electrically connected with the microprocessor, and the controller is electrically connected with the electric telescopic frame and is electrically connected with the sensor and is positioned above the microprocessor.
The utility model has the beneficial effects that the detection cylinder is driven to descend through the expansion and contraction of the electric telescopic frame, the controller controls the movement of the electric telescopic frame after the detection module detects the layering position of the blood plasma and the blood cells in the descending process of the detection cylinder, the push rod is pulled at the moment, the extraction needle head is just positioned above the layering position, the blood plasma is extracted into the syringe, and the accurate detection of the detection module realizes the one-time extraction of the blood plasma, and the waste of the blood plasma is reduced as much as possible.
In order to facilitate extraction of as much plasma as possible;
As a further improvement of the technical scheme, the electric telescopic frame comprises two electric telescopic rods connected with the base and a top plate connected with the tops of the two electric telescopic rods, a plurality of clamping grooves I are formed in the top plate, and the electric telescopic rods are electrically connected with the controller.
The improved structure has the beneficial effects that the extraction needle cylinder is clamped in the clamping groove I, then the electric telescopic rod drives the top plate to descend, the detection cylinder descends, when the detection module detects the layering position, the controller controls the electric telescopic rod to stop descending, and the extraction needle head is just positioned above the layering position, so that more blood plasma can be extracted as accurately as possible, and the waste of the blood plasma is reduced.
To facilitate extraction of plasma;
According to the technical scheme, the extraction frame is arranged on the top plate, sliding grooves are formed in the inner walls of the two ends of the extraction frame, a sliding plate is connected in the sliding grooves in a sliding mode, a plurality of clamping grooves II corresponding to the clamping grooves I are formed in the sliding plate, the upper end of the push rod is movably mounted in the clamping grooves II, a screw rod is connected to the top plate in a rotating mode, the screw rod penetrates through the sliding plate to extend to the outside of the extraction frame, the screw rod is in threaded connection with the sliding plate, the screw rod is in rotating connection with the upper end of the extraction frame, a motor is arranged on the extraction frame, and the output end of the motor is connected with the screw rod.
The improved plasma extraction device has the beneficial effects that the upper end of the push rod is clamped in the clamping groove II, when plasma is required to be extracted, the motor is started, the motor drives the screw rod to rotate, the rotating screw rod drives the sliding plate to slide upwards in the sliding groove and drives the push rod to move upwards, and at the moment, the push rod drives the piston to enable the interior of the extraction needle cylinder to form negative pressure, so that the plasma enters the interior of the extraction needle cylinder.
In order to facilitate the placement of the blood collection tube;
As a further improvement of the technical scheme, the base is provided with a plurality of test tube seats which are coaxially arranged with the detection tube.
The improved blood sampling tube has the beneficial effects that the blood sampling tube after centrifugation can be placed in the test tube seat when plasma extraction is carried out, so that the accurate positioning of the blood sampling tube is facilitated.
In order to keep the blood collection tube stable;
as a further improvement of the technical scheme, a friction ring is arranged in the test tube seat.
The improved blood sampling tube has the beneficial effects that the friction ring can be mutually extruded with the blood sampling tube after the blood sampling tube enters the inside of the test tube seat, so that the blood sampling tube is kept in a stable and vertical state, and the extraction needle head can be accurately inserted into the blood sampling tube to extract blood plasma.
In order to maintain the stability of the body of the blood cell analyzer and the extraction device;
As a further improvement of the technical scheme, a plurality of suckers are arranged at the bottom of the base.
The improved structure has the beneficial effects that the plurality of suckers can firmly adsorb the base on the operating table surface when in use, so as to avoid the movement of the base caused by false touch.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
As shown in fig. 1-5, a blood extraction device for a blood cell analyzer comprises an electric telescopic frame and a detection module, wherein the electric telescopic frame is positioned at one side of a blood cell analyzer main body 2 and is connected with a base 1, a plurality of clamping grooves I4 are formed in the electric telescopic frame, an extraction needle head 6 is arranged at one end of the extraction needle head 5, a piston 7 is movably connected in a sealing manner in the extraction needle head 5, a push rod 8 is arranged on the piston 7, one end of the push rod 8 extends to the outside of the extraction needle head 5, a plurality of detection cylinders 9 are arranged on the electric telescopic frame, the detection cylinders 9 are arranged in one-to-one correspondence with the positions of the clamping grooves I4, when the extraction needle head 5 is arranged in the clamping grooves I4, the extraction needle head 5 is positioned in the detection cylinders 9, the detection module is used for detecting layering positions between blood plasma and blood cells, the detection module comprises a sensor 1001 connected with the bottom of the detection cylinder 9, a microprocessor 1002 electrically connected with the sensor 1001, and a microprocessor 1003 electrically connected with the sensor 1002, and a controller 1003 electrically connected with the microprocessor 1002 electrically, and the electric controller 1003 electrically connected with the needle head 6;
Specifically, when extracting blood plasma, the blood analyzer main body 2 extracts the blood plasma of the same detection type, the blood extraction amount is the same for the blood extraction of the same detection type in clinic, so the blood plasma amount after centrifugation is the same, the blood plasma of the same detection type of a plurality of patients can be simultaneously extracted by a plurality of detection cylinders 9 and a plurality of extraction syringes 5, the extraction syringes 5 are pushed into the clamping grooves 4 from the front of the clamping grooves 4 manually, the clamping grooves 4 only need not drop the extraction syringes 5 in the process of moving up and down in the using process, then the blood sampling tubes after centrifugation are placed under the corresponding detection cylinders 9, then the electric telescopic frames are started to drive the extraction syringes 5, the detection cylinders 9 and the like to descend, along with the descent of the detection cylinders 9, when the sensor 1001 is positioned at the position of the blood plasma layering with the blood plasma, the blood sampling tubes, the sensor 1001 receives signals, the signals are transmitted to the microprocessor 1002, the signals are processed 1003 after the signals are received by the microprocessor 1002, the signals are transmitted to the controller, the controller is controlled to stop the extraction syringes 5, the ultrasonic sensor 1001 is stopped at the position of the inner part of the blood sampling tubes, the blood sampling tubes 5 is stopped, the ultrasonic sensor 1001 is driven by the ultrasonic sensor 1001, the ultrasonic sensor 1001 is positioned at the inner part of the blood sampling tubes 1001, the blood sampling tubes are simultaneously, the blood sampling tubes are extracted 5 are extracted by the syringe 5, the ultrasonic sensor 1001 is driven by the ultrasonic sensor 1001, the ultrasonic sensor 1001 is driven to move down on the inner side of the syringe 5, the syringe 5 is simultaneously, the syringe 5 is driven to be lifted, and the ultrasonic sensor 1001 is driven by the ultrasonic sensor 5, the ultrasonic sensor is 5 is simultaneously, the ultrasonic sensor 5 is driven to be pulled down and the ultrasonic sensor 5, and the ultrasonic sensor 5 is simultaneously, the blood-extracted 5 is simultaneously, the blood extraction tube is lowered down and the blood sampling tube 5 is lowered down and the blood pump 5 is lowered down and is detected, and the arrangement of the detection module also reduces the waste of plasma as much as possible.
Preferably, the electric telescopic frame comprises two electric telescopic rods 301 connected with the base 1 and a top plate 302 connected with the tops of the two electric telescopic rods 301, a plurality of clamping grooves I4 are formed in the top plate 302, the electric telescopic rods 301 are electrically connected with the controller 1003, the extraction needle cylinder 5 is clamped inside the clamping grooves I4, then the electric telescopic rods 301 drive the top plate 302 to descend, meanwhile, the detection cylinder 9 descends, when the detection module detects a layering position, the controller 1003 controls the electric telescopic rods 301 to stop descending, at the moment, the extraction needle head 6 is just located above the layering position, so that more blood plasma can be extracted as accurately as possible, and the waste of the blood plasma is reduced.
Preferably, the top plate 302 is provided with an extraction frame 11, the inner walls at two ends of the extraction frame 11 are provided with sliding grooves 12, a sliding plate 13 is connected in the sliding grooves 12 in a sliding manner, a plurality of clamping grooves two 14 corresponding to the clamping grooves one 4 are provided on the sliding plate 13, the upper end of the push rod 8 is movably installed in the clamping grooves two 14, the top plate 302 is rotatably connected with a screw 15, the screw 15 penetrates through the sliding plate 13 to extend to the outside of the extraction frame 11, the screw 15 is in threaded connection with the sliding plate 13, the screw 15 is rotatably connected with the upper end of the extraction frame 11, a motor 16 is arranged on the extraction frame 11, the output end of the motor 16 is connected with the screw 15, the upper end of the push rod 8 is clamped in the clamping grooves two 14, when plasma is required to be extracted, the motor 16 is started, the motor 16 drives the screw 15 to rotate, the sliding plate 13 is driven to slide upwards in the sliding grooves 12, and drives the push rod 8 to move upwards, and the piston 7 drives the inside the extraction cylinder 5 to form negative pressure, so that the plasma enters the inside the extraction cylinder 5.
Preferably, the base 1 is provided with a plurality of test tube seats 17 coaxially arranged with the detection cylinder 9, and the test tube seats 17 can be used for placing the centrifuged blood collection tube into the test tube seats 17 when extracting plasma, so that the blood collection tube can be positioned accurately.
Preferably, a friction ring 18 is provided in the test tube seat 17, wherein the friction ring 18 may be made of rubber, silica gel, etc., and the friction ring 18 may be mutually pressed with the blood collection tube after the blood collection tube enters the test tube seat 17, so that the blood collection tube is kept in a stable and vertical state, and the extraction needle 6 is convenient to accurately insert into the blood collection tube and extract blood plasma.
Preferably, the bottom of the base 1 is provided with a plurality of suckers 19, and the base 1 can be firmly adsorbed on an operation table surface when the base 1 is used by the plurality of suckers 19, so that the base 1 is prevented from moving caused by false touch.
When the device is used, firstly, the extracting needle cylinder 5 is clamped into the clamping groove I4, then the upper end of the push rod 8 is clamped into the clamping groove II 14, then the centrifuged blood taking tube is placed into the blood taking tube seat 17, meanwhile, the friction ring 18 enables the blood taking tube to be in a vertical state, then the electric telescopic rod 301 is started, the telescopic rod is driven to drive the extracting needle cylinder 5, the detecting cylinder 9 and the like to descend, along with the descending of the detecting cylinder 9, part of the blood taking tube enters the detecting cylinder 9, when the sensor 1001 is positioned at the position where plasma and blood cells are layered, the sensor 1001 receives signals, the signals are transmitted to the microprocessor 1002, the microprocessor 1002 processes the signals after receiving the signals, and transmits the signals to the controller 1003, the controller 1003 controls the electric telescopic rod 301 to stop moving, meanwhile, the extracting needle 6 enters the blood taking tube, and is positioned above the sensor 1001, then the motor 16 is started, the motor 16 drives the screw rod 15 to rotate, the sliding plate 13 is driven to slide upwards in the sliding groove 12, the push rod 8 is driven to move upwards, the push rod 8 drives the piston 8 to drive the extracting piston 5 to form negative pressure inside the extracting needle cylinder 5, and the plasma can be extracted from the blood taking tube 5, and the plasma can be taken out after the plasma is separated from the needle cylinder.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it will be appreciated that numerous modifications, adaptations and variations of the utility model can be made by those skilled in the art without departing from the principles of the utility model, and that other features and advantages of the utility model can be combined in any suitable manner, and that no improvement in the design or design of the utility model is intended to be applied directly to other applications.