Blood coagulation detection device

Abstract

The utility model discloses a blood coagulation detection device which comprises a carrier plate, an electric lifting rod and a row of loading cylinders used for inserting blood collection tubes are arranged on the carrier plate, a lifting plate is arranged at the lifting end of the electric lifting rod, an inserting groove is horizontally formed in the plate edge of one side of the lifting plate, and an inserting plate is inserted in the inserting groove in a matched mode. Sampling needles in one-to-one correspondence with the loading cylinders are uniformly distributed on the insertion plate, suction pipes communicated with upper ports of the sampling needles in one-to-one correspondence are arranged on the lifting plate positioned above the insertion plate, avoiding grooves in one-to-one correspondence with the sampling needles are formed in the lifting plate positioned below the insertion plate, and filter plugs are arranged in the upper ports of the sampling needles; and the sampling needle positioned below the filter plug is connected with a balloon filled with heparin water through a three-way pipe with a regulating valve. The utility model has the advantages that the blood coagulation examination of a plurality of blood collection tubes can be easily completed, the operation is simple and convenient, and the detection efficiency and sensitivity are high.

Description

Technical Field

[0001] This utility model relates to the field of blood testing technology, and in particular to a coagulation testing device for blood samples. Background Technology

[0002] Blood is one of the most important bodily fluids in the human body. By collecting human blood samples, a series of tests can be performed, such as complete blood count, blood biochemistry, tumor markers, and erythrocyte sedimentation rate. The test results can reflect the health status of the human body. Therefore, patients often need to have blood drawn when they go to the hospital for medical treatment. This involves inserting a lancet into a human blood vessel to draw a certain amount of blood for testing.

[0003] Because blood contains various coagulation-related substances such as platelets and fibrin, blood samples are prone to coagulation after being left for a certain period of time. Once coagulation occurs in the blood sample, the blood clots or blood vessels can clog the testing instrument, leading to abnormal test results. Therefore, it is necessary to test whether coagulation has occurred in the blood sample before starting a blood test.

[0004] Currently, there is no dedicated device for detecting coagulation in blood samples. Testers rely on visual inspection (i.e., shaking the blood collection tube to check for blood clots or flocculent blood strands), which has low accuracy and is highly dependent on human factors. Furthermore, if testers suspect coagulation in a blood sample, they open the blood collection tube and use a fine filter to retrieve the sample, making an accurate diagnosis. This method is cumbersome, prone to missed or misdiagnosed cases, and the frequent opening and closing of the blood collection tube cap can contaminate the blood sample, also affecting the accuracy of subsequent blood sample test results. Summary of the Invention

[0005] The purpose of this invention is to provide a coagulation detection device to address the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention can adopt the following technical solution:

[0007] The coagulation testing device of this utility model includes a carrier plate on which an electric lifting rod and a row of loading cylinders for inserting blood collection tubes are mounted. A lifting plate is provided on the lifting end of the electric lifting rod. A slot is horizontally opened on one side of the lifting plate, and an insert plate is adapted to be inserted into the slot. Sampling needles corresponding one-to-one with the loading cylinders are evenly distributed on the insert plate. The sampling needles are vertically fixed to the insert plate. The upper end of the sampling needle is a liquid outlet flush with the upper surface of the insert plate, and the lower end is a suction port with a needle tip structure. A suction tube corresponding to the upper end of the sampling needle is provided on the lifting plate above the insert plate. A clearance groove corresponding to the sampling needle is opened on the lifting plate below the insert plate. A filter plug is provided in the upper end of the sampling needle. A balloon filled with heparinized water is connected to the sampling needle below the filter plug through a three-way tube with a regulating valve.

[0008] Furthermore, each of the suction tubes is provided with an on / off valve located on the top surface of the lifting plate, so that any suction tube can be selected for operation as needed during use.

[0009] Furthermore, a rubber sealing gasket is provided at the opening of each suction tube, which can fit tightly against the upper port edge of the sampling needle, thereby ensuring the sealing performance when the suction tube and the sampling needle are connected.

[0010] Furthermore, the regulating valve on each sampling needle is a manual valve, with its operating lever positioned above the side opening of the loading cylinder. The regulating valve should have a needle body passage open state with the operating lever pointing vertically downwards, and a balloon passage open state with the operating lever held horizontally. At this time, the height of the loading cylinder should ensure that the sampling needle can push the operating lever of the regulating valve after moving a certain distance vertically downwards, causing the operating lever to rotate from the needle body passage open state to the balloon passage open state, thereby stopping the aspiration of the blood collection tube and switching to aspiration of heparinized water in the balloon, thus achieving automatic switching.

[0011] Furthermore, the insertion plate is composed of multiple plate segments spliced ​​together sequentially, and each plate segment is provided with a corresponding sampling needle. A horizontal groove and a horizontal slide bar are provided between adjacent plate segments, so that an appropriate number of blood collection needles can be selected according to the needs of use.

[0012] The advantage of this invention lies in the fact that by lowering the electric lifting rod, a row of blood collection needles are simultaneously inserted into the blood collection tubes contained in the loading cylinder. During the slow lifting process, blood samples are evenly drawn from the blood collection tubes, allowing blood clots or streaks in the blood samples with coagulation to be filtered out by the filter plug, thus clogging the filter plug. Then, when drawing heparin water from the balloon, the deformation of the balloon can be used to determine whether coagulation has occurred in the blood sample of the blood collection tube. Coagulation tests of multiple blood collection tubes can be easily completed. The operation is simple, and the detection efficiency and sensitivity are high. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 yes Figure 1 A magnified view of the sampling needle. Detailed Implementation

[0015] 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.

[0016] like Figure 1 , 2 As shown, the coagulation detection device of this utility model includes a carrier plate 1, the top surface of which is a horizontal bearing surface. An electric lifting rod 2 and a row of loading cylinders 3 for vertically inserting blood collection tubes are vertically arranged on the horizontal bearing surface of the carrier plate 1.

[0017] A lifting plate 4 is provided on the lifting end of the electric lifting rod 2. A slot 5 is horizontally opened on the side edge of the lifting plate 4 near the top of the loading cylinder 3. An insert plate 6 is inserted into the slot 5. Multiple sampling needles 7 are evenly distributed on the insert plate 6, corresponding one-to-one with the loading cylinder 3. The sampling needles 7 are vertically fixed on the insert plate 6. The upper end of the sampling needle 7 is a liquid outlet that is flush with the upper surface of the insert plate 6, and its lower end is a liquid suction port with a needle tip structure. A suction tube 8 is provided on the lifting plate 4 above the insert plate 6, corresponding one-to-one with the upper end of the sampling needle 7. A clearance groove 17 is opened on the lifting plate 4 below the insert plate 6, corresponding one-to-one with the sampling needle 7.

[0018] The upper port of the sampling needle 7 is also equipped with a filter plug 9, which is (what model, name, manufacturer) used to filter blood clots or blood strands; the sampling needle 7 located below the filter plug 9 is connected to a flexible balloon 11 via a three-way tube 10. The three-way tube 10 is equipped with a regulating valve 12 for adjusting the passage, and the balloon 11 is filled with heparin water.

[0019] In actual processing, all the suction tubes 8 are connected and converged together, extending out of the lifting plate 4 through a main pipe 13, so that a suction pump can be directly connected to the main pipe 13 to easily realize the suction function of all the suction tubes 8. At this time, in order to facilitate the selection of any suction tube 8 for connection as needed during use, an on / off valve 14 located on the top surface of the lifting plate 4 can be installed on each suction tube 8. The on / off valve 14 is a manually controlled rotary valve, which can easily realize the opening and closing of each suction tube 8. At the same time, a rubber sealing gasket 15 is also provided at the tube opening of each suction tube 8. When the insert plate 6 is inserted into the corresponding slot 5, the rubber sealing gasket 15 can fit tightly with the upper port edge of the sampling needle 7 on the insert plate 6, thereby ensuring the sealing when the suction tube 8 is connected to the sampling needle 7.

[0020] In addition, the regulating valve 12 on each sampling needle 7 is a purely mechanical manual valve, with its operating lever 16 corresponding to the upper side of the opening edge of each loading cylinder 3. The regulating valve 12 has a needle passage open state with the operating lever 16 pointing vertically downward, and a balloon passage open state with the operating lever 16 pointing horizontally. At this time, the height of the loading cylinder 3 should be such that after the sampling needle 7 moves a certain distance vertically downward, it can push the operating lever 16 of the regulating valve 12, so that the operating lever 16 rotates from the vertical downward position to the horizontal position, realizing the automatic switching between the needle passage open state and the balloon passage open state, thereby stopping the aspiration of blood samples in the blood collection tube and switching to aspiration of heparin water in the balloon 11.

[0021] Furthermore, to facilitate the selection of the corresponding number of blood collection needles 7 based on the number of blood collection tubes, the insert plate 6 can be assembled from multiple plate segments during actual processing. Each plate segment is equipped with a corresponding sampling needle 7. Adjacent plate segments can be connected by a horizontal groove and a horizontal sliding rod (i.e., a horizontal groove is opened on the edge of one plate segment, and a horizontal sliding rod that is adapted to the horizontal groove is set on the edge of the other plate segment), which easily realizes the sequential assembly of each plate segment, thereby enabling the selection of an appropriate number of blood collection needles 7 according to the usage requirements.

[0022] In use, first insert the blood collection tubes one by one into the loading cylinder 3; then, according to the number of blood collection tubes, assemble the corresponding number of blood collection needles 7, and insert the assembled insert plate 6 into the corresponding slot 5, keeping the upper port of the blood collection needle 7 and the suction tube 8 in a sealed connection, and at the same time, open the opening and closing valve 14 on each suction tube 8 that is connected to the blood collection needle 7; then, control the electric lifting rod 2 to move the blood collection needle 7 downward and insert it into the corresponding blood collection tube below, and continuously draw blood samples from the blood collection tube while the blood collection needle 7 moves downward at a uniform speed.

[0023] When the blood collection needle 7 moves down a certain distance, the control lever 16 is pushed by the edge of the loading cylinder 3, rotating from a vertically downward position to a horizontal position. This causes the regulating valve 12 to switch from the needle passage open state to the balloon passage open state. At this time, the lifting end of the electric lifting rod 2 will change from downward movement to upward movement, and the suction tube 8 can no longer aspirate the blood sample in the blood collection tube, but instead aspirates the heparin water in the balloon 11. If the blood sample in the blood collection tube has a coagulation phenomenon, when the blood collection needle 7 aspirates the blood sample, the blood clots or blood strands in the blood sample will adhere to the filter plug 9, thereby blocking the filter plug 9. At this time, when the heparin water in the balloon 11 is aspirated, the heparin water will not be aspirated away, so the balloon 11 will not flatten. Thus, the deformation of the balloon 11 can be used to determine whether the blood sample in the blood collection tube has a coagulation phenomenon. This method can easily complete the coagulation test of multiple blood collection tubes, is easy to operate, and has high detection efficiency and sensitivity.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, in this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A coagulation detection device, characterized by: The device includes a carrier plate, on which an electric lifting rod and a row of loading cylinders for inserting blood collection tubes are mounted. The lifting end of the electric lifting rod is equipped with a lifting plate. A slot is horizontally opened on one side of the lifting plate, and an insert plate is inserted into the slot. Sampling needles corresponding to the loading cylinders are evenly distributed on the insert plate. A suction tube connected to the upper port of each sampling needle is provided on the lifting plate above the insert plate. A clearance groove corresponding to each sampling needle is opened on the lifting plate below the insert plate. A filter plug is provided in the upper port of each sampling needle. A balloon filled with heparinized water is connected to the sampling needle below the filter plug through a three-way tube with an adjusting valve.

2. The coagulation detection device of claim 1, wherein: The sampling needle is vertically fixed to the insert plate. The upper end of the sampling needle is a liquid outlet that is flush with the upper surface of the insert plate, and the lower end is a liquid suction port with a needle tip structure.

3. The coagulation detection device of claim 1, wherein: The suction tube is equipped with an on / off valve located on the top surface of the lifting plate.

4. The coagulation detection device of claim 1, wherein: A rubber sealing gasket is provided at the opening of the suction tube.

5. The coagulation detection device of claim 1, wherein: The regulating valve is a manual valve, with its operating lever positioned above the side opening of the loading cylinder. The regulating valve has a needle passage open state when the operating lever is vertically downward and a balloon passage open state when the operating lever is horizontal.

6. The coagulation detection device of claim 1, wherein: The insert plate is composed of multiple plate segments spliced ​​together sequentially, and each plate segment is provided with a corresponding sampling needle.

7. The coagulation detection device of claim 6, wherein: A horizontal sliding groove and a horizontal sliding rod are provided between two adjacent sections of the plate.

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