A coagulation detector

Abstract

The application discloses a blood coagulation detector, which comprises a driving motor, a blood coagulation cylinder, a connecting rod, a sealing cover, a magnet, a base plate, a pressing plate, a polymer film, an elastic metal plate, an electrode, a working plane and an electrometer, wherein the driving motor is fixedly installed on the working plane, the rotating shaft of the driving motor is provided with the blood coagulation cylinder, the blood coagulation cylinder is provided with the magnet, the working plane is further provided with the base plate and the pressing plate which are fixedly bonded at an included angle, the included angle between the base plate and the pressing plate is an acute angle, the base plate is pasted with the polymer film, the pressing plate is inserted with the elastic metal plate, the elastic metal plate has elasticity, the front end of the elastic metal plate extends towards the polymer film, the front end of the elastic metal plate is fixedly provided with the electrode, the electrode is in contact with the polymer film, and the electrode is connected with the electrometer through the wire. The electrode and the polymer film are periodically contacted and separated to generate an electric signal, and the electric signal is read through the electrometer, so that the blood coagulation time and other parameters can be detected, and the sensitivity is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of triboelectricity and medical technology, and more particularly to a coagulation detector. BACKGROUND

[0002] The sensitivity of testing coagulation and the complexity of the detection process are important functional indicators of coagulation analysis instruments. For clinical users, accurate and rapid specimen detection results are beneficial to improve medical efficiency. The existing coagulation analysis instrument usually detects the coagulation process by using magnetic induction or optical analysis. The magnetic induction detection is greatly interfered by electromagnetic signals, and the sensitivity is not ideal. The optical analysis detection process is complicated and produces light pollution. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a coagulation detector.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0005] A coagulation detector, comprising a driving motor, a coagulation cylinder, a connecting rod, a sealing cover, a magnet, a base plate, a pressing plate, a polymer film, an elastic metal plate, an electrode, a working plane, an electrometer and a wire, the driving motor is fixedly installed on the working plane, the coagulation cylinder is installed on the rotating shaft of the driving motor, the coagulation cylinder is provided with a coagulation sample and a magnet, the magnet is cylindrical and can freely roll in the coagulation cylinder; the base plate and the pressing plate are fixedly bonded at an included angle on the working plane, the included angle between the base plate and the pressing plate is an acute angle, and the base plate is arranged on the horizontal side of the coagulation cylinder and parallel to the vertical axis plane of the coagulation cylinder; the polymer film is attached to the base plate, the elastic metal plate is inserted into the pressing plate, the elastic metal plate has elasticity, the front end of the elastic metal plate extends towards the polymer film, the electrode is fixed to the front end of the elastic metal plate, the electrode is in contact with the polymer film, and the electrode is connected with the electrometer through the wire.

[0006] Preferably, the rotating shaft of the driving motor is fixedly provided with the connecting rod, one end of the coagulation cylinder is sealed, and the other end is provided with the sealing cover, the end of the sealing cover facing the connecting rod is provided with a insertion hole, and the connecting rod is inserted into the insertion hole.

[0007] Preferably, the side of the pressing plate facing the base plate is fixedly provided with a socket, the socket is provided with a slot, and the elastic metal plate is inserted into the slot.

[0008] Preferably, the polymer film is a PTFE film.

[0009] Preferably, the elastic metal plate is a No. 45 spring steel sheet.

[0010] Preferably, the electrode is a metal or a metal oxide.

[0011] Since the coagulation cylinder is driven by the driving motor to make a circular motion, the attraction of the cylindrical magnet to the elastic metal plate and the reset of the elastic metal plate are periodically changed, a periodic frictional electric signal is generated to determine the coagulation result, the diagnosis result is more sensitive through the electric signal transmission, the measurement process is simple, the structure of the present application is simple, and the failure rate is low. In addition, the included angle between the base plate and the extrusion plate is set to an acute angle, so that the elastic metal plate extends towards the polymer film and abuts on the polymer film. Since the elastic metal plate itself has elasticity, the elastic metal plate is bent, and under the action of the bending force, the electrode abuts on the polymer film. At the same time, the cylindrical magnet can avoid sliding along the axial direction of the coagulation cylinder during rotation, so that the cylindrical magnet always faces the elastic metal plate, keeps the magnetic constant, and avoids the interference of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a structural schematic diagram of a coagulation detector of the present application;

[0013] Figure 2 Fig. 2 is a partial sectional view of a coagulation detector of the present application;

[0014] Figure 3 Fig. 3 is a partial enlarged view of A in Fig. 1. Figure 1 Fig. 4 is a partial enlarged view of B in Fig. 1.

[0015] Fig. 1 is a structural schematic diagram of a coagulation detector of the present application; DETAILED DESCRIPTION

[0016] Fig. 1 is a structural schematic diagram of a coagulation detector of the present application; Figures 1-3 The present application further discloses a coagulation detector.

[0017] The application discloses a coagulation detector which comprises a driving motor 1, a coagulation cylinder 2, a connecting rod 3, a sealing cover 4, a magnet 5, a base plate 6, a pressing plate 7, a polymer film 8, an elastic metal plate 9, an electrode 10, a working plane 11, an electrometer 12 and wires, the driving motor 1 is fixedly installed on the working plane 11, the rotating shaft of the driving motor 1 is fixedly connected with the connecting rod 3, one end of the coagulation cylinder 2 is sealed, the other end is provided with the sealing cover 4, the sealing cover 4 is provided with a plug-in part on the side facing the coagulation cylinder 2, the plug-in part is plugged into the coagulation cylinder 2, a sealing rubber ring is arranged between the plug-in part and the coagulation cylinder 2, the sealing cover 4 is provided with a plug hole on the side facing the connecting rod 3, a plurality of limiting grooves can be arranged in the plug hole, the connecting rod 3 is matched with the plug hole, the connecting rod 3 is plugged into the plug hole, the coagulation cylinder 2 is provided with a coagulation sample and a cylindrical magnet 5, the cylindrical magnet 5 can freely roll in the coagulation cylinder 2, the working plane is further provided with the base plate 6 and the pressing plate 7 which are fixedly bonded at an included angle, the included angle between the base plate 6 and the pressing plate 7 is an acute angle, the base plate 6 is arranged on the horizontal side of the coagulation cylinder 2 and is parallel to the vertical axial surface of the coagulation cylinder 2, the base plate 6 is attached with the polymer film 8, the polymer film 8 is a PTFE film, the pressing plate 7 is fixedly connected with a socket on the side facing the base plate 6, the socket is provided with a plug groove, the elastic metal plate 9 is plugged into the plug groove, the elastic metal plate 9 has elasticity, the elastic metal plate 9 is a 45# spring steel sheet, the front end of the elastic metal plate 9 extends towards the polymer film 8, the front end of the elastic metal plate 9 is fixedly connected with the electrode 10, the electrode 10 is in contact with the polymer film 8, and the electrode 10 is connected with the electrometer 12 through the wires.

[0018] The base plate 6 is arranged on the horizontal side of the coagulation cylinder 2 and is parallel to the vertical axial surface of the coagulation cylinder 2.

[0019] The rotating shaft of the driving motor 1 is fixedly connected with the connecting rod 3, one end of the coagulation cylinder 2 is sealed, the other end is provided with the sealing cover 4, and the sealing cover 4 is provided with a plug hole on the side facing the connecting rod 3.

[0020] The pressing plate 7 is fixedly connected with a socket on the side facing the base plate 6, the socket is provided with a plug groove, and the elastic metal plate 9 is plugged into the plug groove.

[0021] The magnet 5 is arranged in a cylindrical shape and can freely roll in the coagulation cylinder 2.

[0022] The polymer film 8 is a PTFE film.

[0023] The elastic metal plate 9 is a 45# spring steel sheet, and the electrode 10 is made of metal or metal oxide, for example, copper, aluminum, silver, gold and various alloys.

[0024] The coagulation sample is placed in the coagulation cylinder 2, the sealing cover 4 is covered, and the connecting rod 2 is inserted into the drive motor 1. The drive motor 1 is driven to rotate together, and the cylindrical magnet rotates freely on the inner wall of the coagulation cylinder 2. Due to the action of its own gravity, it is always kept at the lowest end of the coagulation cylinder 2. In this process, the elastic metal plate 9 is always attracted by the magnetic force of the magnet 5. At this time, the electrode 10 at the front end of the elastic metal plate 9 is in contact with the polymer film 9. When the coagulation sample coagulates to a certain extent, the coagulation sample pushes the cylindrical magnet to move upward along the rotation direction of the coagulation cylinder 2. As the cylindrical magnet rises to the side away from the elastic metal plate (i.e. the side away from the elastic metal plate during the rotation of the coagulation cylinder), the distance between the magnet and the elastic metal plate gradually increases, and the magnetic force gradually decreases. Until the reset spring force is greater than the magnetic force, the elastic metal plate is forced to the polymer film, the frictional electricity signal is transmitted to the electrometer through the wire, and the electrometer displays. After the magnet continues to move with the coagulation cylinder to the highest point, the magnet gradually approaches the elastic metal plate, the magnetic force increases, until the magnetic force is greater than the reset spring force of the elastic metal, a frictional electricity signal is generated, the frictional electricity signal is transmitted to the electrometer through the wire, and the electrometer displays the coagulation time detection result.

[0025] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the scope of the present application is within the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the present application are also considered as the protection scope of the present application.

Claims

1. A coagulation detector characterized by: The device comprises a driving motor, a coagulation cylinder, a connecting rod, a sealing cover, a magnet, a base plate, a pressing plate, a polymer film, an elastic metal plate, an electrode, a working plane, an electrometer and a wire, the driving motor is fixedly installed on the working plane, the rotating shaft of the driving motor is installed with the coagulation cylinder, the coagulation cylinder is provided with a coagulation sample and a magnet, the magnet is in a cylindrical shape and can freely roll in the coagulation cylinder; the working plane is further provided with the base plate and the pressing plate which are fixedly bonded at an angle, the angle between the base plate and the pressing plate is an acute angle, the base plate is arranged on the horizontal side of the coagulation cylinder and is parallel to the vertical axis surface of the coagulation cylinder; the base plate is attached with the polymer film, the pressing plate is inserted with the elastic metal plate, the elastic metal plate has elasticity, the front end of the elastic metal plate extends towards the polymer film, the front end of the elastic metal plate is fixed with the electrode, the electrode is in contact with the polymer film, and the electrode is connected with the electrometer through the wire.

2. A coagulation detector according to claim 1, characterized in that: The rotating shaft of the driving motor is fixedly installed with the connecting rod, one end of the coagulation cylinder is sealed, and the other end is installed with the sealing cover, the sealing cover is provided with a insertion hole at one end facing the connecting rod, and the connecting rod is inserted into the insertion hole.

3. A coagulation detector according to claim 1, characterized in that: The side of the pressing plate facing the base plate is fixedly installed with a socket, the socket is provided with a insertion slot, and the elastic metal plate is inserted into the insertion slot.

4. A coagulation detector according to claim 1, characterized in that: The polymer film is a PTFE film.

5. A coagulation detector according to claim 1, characterized in that: The elastic metal plate is a 45# spring steel sheet.

6. A coagulation detector according to claim 1, characterized in that: The electrode is metal or metal oxide.

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