Blood clot detection device for blood collection tube

Abstract

The blood collection tube blood clot detection device comprises a detection table, a vertical seat is fixed on the detection table, a lifting block is arranged on the front surface of the vertical seat, a lifting driving mechanism is further arranged in the vertical seat, and the lifting driving mechanism is used for driving the lifting block to do lifting motion; a disposable hemagglutination filter box is arranged on the front surface of the lifting block and comprises a filter box body, and the filter box body is detachably mounted on the front surface of the lifting block; in conclusion, the blood clot detection device is simple in structure, convenient to use and higher in accuracy compared with naked eye observation, most blood samples with blood clots can be distinguished by setting the error range, the detection accuracy is guaranteed, and repeated blood drawing of patients with normal samples can be avoided as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model relates to a blood clot detection device, specifically to a blood collection tube blood clot detection device. BACKGROUND

[0002] The blood collection tube is also called vacuum blood collection tube, which is a kind of negative pressure vacuum tube for one-time and quantitative blood collection in clinical application, and is usually used with a venous blood collection needle. One end of the blood collection needle is inserted into the human vein, and the other end is inserted into the rubber plug of the vacuum blood collection tube. The human vein blood is drawn into the blood sample container through the blood collection needle under the action of negative pressure. The blood collection tube is divided into many types according to different needs, and is distinguished by different colored caps, such as a common serum tube with a red cap, which does not contain additives, anticoagulants or coagulation components, and only contains vacuum; a sodium citrate blood sedimentation test tube with a black cap, which is mainly used for blood sedimentation test; a heparin anticoagulant tube with a green cap, which is used for liver function, kidney function, blood lipid, blood sugar, etc.; and an EDTA anticoagulant tube with a purple cap, which is used for blood routine, glycosylated hemoglobin, blood type test, etc.

[0003] The blood in the blood collection tube needs to be kept in a non-coagulation state, so different types of anticoagulants need to be added. If the blood coagulates, it may lead to inconsistent test results with the actual situation, delaying the judgment of the patient's condition. Therefore, when the blood collection tube is received in the laboratory, it is necessary to first determine whether there is a blood clot or blood clot in it. Once blood coagulation is found, the ward or outpatient department needs to be notified to re-draw blood. However, there is no special blood coagulation detection instrument at present. Generally, it is only observed by naked eye, or the blood collection tube is opened and stirred with a rod-shaped object, and then the rod-shaped object is lifted to observe whether there is a blood clot or blood clot in the stirring and lifting process. The above method cannot accurately determine whether there is a blood clot or blood clot. If the coagulated blood is detected on the machine, it will lead to a large deviation in the test results. Therefore, in order to conveniently determine whether the blood in the blood collection tube is coagulated and improve the detection accuracy, a device for conveniently checking whether there is a blood clot or blood clot in the blood collection tube is needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a blood collection tube blood clot detection device, solving the technical problem that the existing method for detecting whether there is a blood clot or blood clot in the blood collection tube is not accurate.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The blood collection tube blood clot detection device comprises a detection table, a stand fixed on the detection table, a lifting block arranged on the front surface of the stand, and a lifting driving mechanism arranged in the stand and used for driving the lifting block to move up and down.

[0007] The front surface of the lifting block is provided with a disposable blood coagulation filter box, the disposable blood coagulation filter box comprises a filter box body, the filter box body is detachably installed on the front surface of the lifting block, a liquid suction cylinder is arranged in the filter box body, the liquid suction cylinder is arranged in the vertical direction, a piston and a push rod are arranged in the liquid suction cylinder, the lower end of the push rod is connected to the piston, the upper end of the push rod penetrates outward from the upper end of the liquid suction cylinder, the upper end of the push rod is provided with a push handle, the lower end of the liquid suction cylinder is provided with a liquid inlet and a liquid outlet, a one-way valve is arranged at the liquid inlet and the liquid outlet, the bottom of the filter box body is connected with a liquid inlet tube and a liquid outlet tube, the liquid inlet tube is connected with the liquid inlet through a hose, the liquid outlet tube is connected with the liquid outlet through a hose, and a blood coagulation filter strip is arranged in the hose connected between the liquid outlet tube and the liquid outlet;

[0008] The lifting block is also provided with an electric push-pull mechanism, the electric push-pull mechanism is used for pushing and pulling the push handle in the vertical direction, the tabletop of the detection table is provided with two insertion grooves, the two insertion grooves are respectively located directly below the liquid inlet tube and the liquid outlet tube, the diameter of the insertion groove is greater than the outer diameter of the blood collection tube, and a weighing sensor is arranged at the bottom of each insertion groove;

[0009] The detection table is provided with a PLC controller and a display screen, and the PLC controller is connected with the lifting driving mechanism, the electric push-pull mechanism, the display screen and the two weighing sensors through lines.

[0010] Further, the filter box body is a reverse T-shaped structure, three clamping blocks are arranged on the front surface of the lifting block, the three clamping blocks are arranged in a triangular shape, and the filter box body is clamped and arranged on the three clamping blocks.

[0011] Further, a first mounting cavity is arranged in the stand, a first long hole is arranged on the front surface of the stand, the lifting driving mechanism comprises an electric push rod, the electric push rod is installed in the first mounting cavity, the push rod end of the electric push rod is connected with the lifting block through a first connecting seat, and the first connecting seat penetrates through the first long hole and extends into the first mounting cavity;

[0012] A lifting switch is arranged on the front surface of the stand, and the lifting switch and the electric push rod are connected with the PLC controller through lines.

[0013] Further, a second mounting cavity is arranged in the lifting block, a second long hole is arranged on the front surface of the lifting block, the electric push-pull mechanism comprises a clamping seat, a synchronous belt transmission pair and a forward and reverse motor, the synchronous belt transmission pair and the forward and reverse motor are installed in the second mounting cavity, the forward and reverse motor is used for driving the synchronous belt transmission pair to transmit, the clamping seat is located on the front surface of the lifting block, the rear part of the clamping seat penetrates through the second long hole and is fixed on the belt of the synchronous belt transmission pair, the clamping seat is provided with a clamping groove, and the push handle is clamped on the clamping groove of the clamping seat.

[0014] The front surface of the stand is also equipped with a liquid injection switch. The liquid injection switch and the forward and reverse motors are connected to the PLC controller through circuits. The liquid injection switch is used to control the forward and reverse rotation of the forward and reverse motors.

[0015] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure and is easy to use. Compared with visual observation, it has a higher accuracy rate. By setting the error range, it can distinguish most blood samples with blood clots, ensuring the accuracy of the examination, and can minimize the need for patients with normal samples to have their blood drawn repeatedly. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of the blood collection tube blood clot detection device of this utility model;

[0018] Figure 2 This is a side view of the blood collection tube blood clot detection device of this utility model;

[0019] Figure 3 A schematic diagram of the blood clot detection device for blood collection vessels after removing the disposable blood coagulation filter cartridge;

[0020] Figure 4 This is a schematic diagram of a disposable blood coagulation filter cartridge. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] The present invention will be further described in detail below with reference to the embodiments.

[0023] like Figures 1-4 As shown, here is a specific embodiment 1 of the blood collection tube blood clot detection device provided by this utility model:

[0024] The blood collection tube blood clot detection device includes a detection table 1, a stand 2 fixed on the detection table 1, a lifting block 3 provided on the front surface of the stand 2, and a lifting drive mechanism provided inside the stand 2, which is used to drive the lifting block 3 to move up and down.

[0025] The front surface of the lifting block 3 is provided with a disposable blood clot filter box 4, the disposable blood clot filter box 4 comprises a filter box body 5, the filter box body 5 is detachably installed on the front surface of the lifting block 3, a liquid suction cylinder 6 is arranged in the filter box body 5, the liquid suction cylinder 6 is arranged in the vertical direction, a piston 7 and a push rod 8 are arranged in the liquid suction cylinder 6, the lower end of the push rod 8 is connected to the piston 7, the upper end of the push rod 8 outwardly penetrates from the upper end of the liquid suction cylinder 6, the upper end of the push rod 8 is provided with a push handle 9, the lower end of the liquid suction cylinder 6 is provided with a liquid inlet and a liquid outlet, a one-way valve 10 is arranged at the liquid inlet and the liquid outlet, the bottom of the filter box body 5 is connected with a liquid inlet tube 11 and a liquid outlet tube 12, the liquid inlet tube 11 is connected with the liquid inlet through a hose, the liquid outlet tube 12 is connected with the liquid outlet through a hose, and a blood clot filter strip 13 is arranged in the hose connected between the liquid outlet tube 12 and the liquid outlet;

[0026] The lifting block 3 is also provided with an electric push-pull mechanism, which is used for pushing and pulling the push handle 9 in the vertical direction, the table top of the detection table 1 is provided with two insertion grooves 14, the two insertion grooves 14 are respectively located directly below the liquid inlet tube 11 and the liquid outlet tube 12, the diameter of the insertion groove 14 is greater than the outer diameter of the blood collection tube, and the bottom of each insertion groove 14 is provided with a weighing sensor 15;

[0027] The detection table 1 is provided with a PLC controller and a display screen 16, the PLC controller is connected with the lifting driving mechanism, the electric push-pull mechanism, the display screen 16 and the two weighing sensors 15 through lines.

[0028] The use process of the blood collection tube blood clot detection device of the embodiment is as follows, before blood clot detection, first, the disposable blood clot filter box 4 is installed on the front surface of the lifting block 3, in order to install more quickly, the filter box body 5 is a inverted T-shaped structure, three clamping blocks 17 are arranged on the front surface of the lifting block 3, the three clamping blocks 17 are arranged in a triangular shape, the filter box body 5 is clamped on the three clamping blocks 17, at this time, the filter box body 5 is fixed on the front surface of the lifting block 3 and cannot move up and down;

[0029] After the disposable blood coagulation filter box 4 is installed, the liquid inlet tube 11 and the liquid outlet tube 12 are located above the two insertion slots 14, then the blood collection tube to be detected is placed in the left insertion slot 14 after removing the cap, and the right insertion slot 14 is placed into an empty blood collection tube. The weight of the two blood collection tubes can be monitored by the two weighing sensors 15, and the data is transmitted to the PLC controller. Then the PLC controller controls the lifting drive mechanism to start, and the lifting drive mechanism controls the lifting block 3 to move downward until the liquid inlet tube 11 and the liquid outlet tube 12 are inserted into the bottom of the two blood collection tubes. Then the PLC controller controls the electric push-pull mechanism to start, and the electric push-pull mechanism pulls the push handle 9 upward, the push handle 9 pulls the push rod 8, and the piston 7 moves in the suction cylinder 6. The suction cylinder 6 generates negative pressure, and then the blood in the blood collection tube to be detected is sucked through the liquid inlet tube 11. The blood enters the suction cylinder 6 through the liquid inlet tube 11, and then the electric push-pull mechanism pushes the push handle 9 downward. The piston 7 pushes the blood in the suction cylinder 6 into the liquid outlet tube 12, and then flows into the empty blood collection tube through the liquid outlet tube 12. The one-way valve 10 at the liquid inlet and outlet of the lower end of the suction cylinder 6 ensures that the air at the liquid outlet tube 12 cannot enter the suction cylinder 6 during suction, and the blood cannot enter the liquid inlet tube 11 when the blood in the suction cylinder 6 is pushed out, ensuring the one-way flow of fluid at the liquid inlet tube 11 and the liquid outlet tube 12. When the blood flows from the suction cylinder 6 into the liquid outlet tube 12, the blood passes through the blood coagulation filter strip 13, which filters the blood. If the blood contains blood clots, they can be filtered out.

[0030] Through the above operation, the blood in the blood collection tube to be detected is transferred to the empty blood collection tube, and the filtration of blood clots in the blood is completed during the transfer process. Then the right weighing sensor 15 measures the blood collection tube containing the filtered blood, and the PLC controller compares the weight of the blood collection tube to be detected before transfer and the blood collection tube containing the filtered blood. If the weight difference is greater than a certain error range, it can be determined that the blood collection tube contains a large amount of blood clots or blood clots. At this time, it is necessary to re-take blood. If the weight difference is within a certain error range, it can be determined that the blood collection tube contains a small amount or no blood clots. The filtered blood can be used. In addition, it should be noted that the disposable blood coagulation filter box 4 is disposable, and other components can be reused. When a blood collection tube is detected, a new disposable blood coagulation filter box 4 needs to be replaced, which meets the requirements of medical operations.

[0031] In order to realize the function of the lifting driving mechanism and the electric push-pull mechanism, the specific structure of the lifting driving mechanism and the electric push-pull mechanism is as follows: a first mounting cavity 18 is arranged in the vertical seat 2, and a first long hole is arranged on the front surface of the vertical seat 2; the lifting driving mechanism comprises an electric push rod 25, the electric push rod 25 is mounted in the first mounting cavity 18, and the end of the push rod 8 of the electric push rod 25 is connected with the lifting block 3 through a first connecting seat 19, and the first connecting seat 19 extends into the first mounting cavity 18 through the first long hole;

[0032] A lifting switch 20 is arranged on the front surface of the vertical seat 2, the lifting switch 20 and the electric push rod 25 are connected with a PLC controller through lines respectively, the lifting switch 20 controls the electric push rod 25, and the lifting block 3 can be driven to be lifted up and down on the front surface of the vertical seat 2 through the extension and retraction of the electric push rod 25.

[0033] A second mounting cavity 21 is arranged in the lifting block 3, a second long hole 26 is arranged on the front surface of the lifting block 3, the electric push-pull mechanism comprises a clamping seat 22, a synchronous belt transmission pair 23 and a reversible motor, the synchronous belt transmission pair 23 and the reversible motor are mounted in the second mounting cavity 21, the reversible motor is used for driving the synchronous belt transmission pair 23 to drive, the clamping seat 22 is located on the front surface of the lifting block 3, and the rear part of the clamping seat 22 is fixed on the belt of the synchronous belt transmission pair 23 through the second long hole 26, the clamping seat 22 is provided with a clamping groove, and the push handle 9 is clamped on the clamping groove of the clamping seat 22.

[0034] The front surface of the vertical seat 2 is further provided with a liquid injection and extraction switch 24, the liquid injection and extraction switch 24 and the reversible motor are connected with a PLC controller through lines respectively, the liquid injection and extraction switch 24 is used for controlling the forward and reverse rotation of the reversible motor, the reversible motor drives the synchronous belt transmission pair 23 to drive, the clamping seat 22 can be driven to move along the second long hole 26 by using the transmission of the belt, the clamping seat 22 drives the push handle 9 to move, and the action of the push rod 8 can be completed.

[0035] It should be noted that, in this text, terms such as "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0036] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A blood collection tube blood clot detection device, characterized in that: The detection table is provided with a standing seat, and the front surface of the standing seat is provided with a lifting block. The front surface of the lifting block is provided with a disposable blood coagulation filter box. The detection table is provided with a PLC controller and a display screen. The lifting block is provided with a second installation cavity, and the front surface of the lifting block is provided with a second long hole.

2. The blood collection tube clot detection device of claim 1, wherein: The front surface of the standing seat is further provided with a liquid extraction and injection switch.

3. The blood collection tube clot detection device of claim 2, wherein: The lifting block is provided with a second installation cavity, and the front surface of the lifting block is provided with a second long hole. The front surface of the standing seat is further provided with a liquid extraction and injection switch.

4. The blood collection tube clot detection device of claim 3, wherein: ​ ​

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