CN204287208U - A kind of Hemostasis examination instrument - Google Patents

Abstract

The blood coagulation detection instrument provided by the utility model includes a testing mechanism. The testing mechanism includes a rotating unit, a testing unit, and a bracket supporting the above-mentioned components. The rotating unit includes a first magnetic body, a second magnetic body, a first servo motor, and a rotating rod. The first magnetic body and the second magnetic body are arranged at intervals, the first magnetic body is fixedly connected to the first servo motor, one end of the rotating rod is fixedly connected to the second magnetic body, and the other end of the rotating rod One end includes a guide tip and a tapered part, the guide tip is located at the end of the tapered part and is tapered, the diameter of the tapered part gradually decreases toward the guide tip and is continuously integrated with the guide tip, so that the When the first magnetic body rotates, it drives the second magnetic body to rotate. Using the effect of magnetic attraction, the rotation of the rotation can be flexibly controlled, and the loss of force in the transmission process can be avoided, so that the operation of the test process is simple, the test accuracy is improved, and the user is saved. cost.

Description

A blood coagulation detection instrument

technical field

The utility model relates to the field of blood detection, in particular to a blood coagulation detection instrument.

Background technique

At present, hospitals usually use thromboelastography to monitor the patient's blood coagulation from the whole dynamic process, and use thromboelastometry to analyze the patient's blood and then output the thromboelastogram.

The main working principle of the current thrombelastograph is to install a sensor on the upper end of the suspension wire to monitor the change of the torsion of the suspension wire, and hang a cup cover with a cylinder on the lower end, and the cylinder of the cup cover invades into the cup containing the blood sample. Among them, the cup body is installed on the constant temperature control board, and the constant temperature control board rotates back and forth at an angle of 4°45' to drive the cup body to rotate and affect the blood sample. As time increases, the resistance produced by the adhesion of fibrin in the blood sample is different. Therefore, the power transmitted to the suspension wire by the cylinder on the cup cover is different, which reflects the different data changes on the sensor, so as to achieve the purpose of detecting the blood coagulation process.

As shown in Figure 1, the main parts of existing thromboelastography instrument are: the heating of automatic adjustment constant temperature (37 ℃) and constant temperature control board 106; Insert the cup cover 104 that has small cylinder in the test cup 105; Test cup 105 is carried on the constant temperature control board 106, which can connect the suspension cylinder 103 of the cup cover 104, the suspension wire 102 connected with the suspension cylinder 103, and the sensor 101.

The upper end of the suspension wire 102 is connected to the sensor 101 , and the lower end is connected to the tapered cylinder 103 and integrated. The torsion force generated by the rotation of the suspension wire 102 will be reflected by the sensor 101. The tapered cylinder 103 and the cup cover 104 are interference fit through the mechanical shaft hole. The lower test cup 105 is tightly placed and can rotate back and forth at an angle of 4°45' On the constant temperature control board 106, the rotation of the constant temperature control board 106 can drive the test cup 105 to rotate; the blood sample 107 is placed between the cup wall and the cylinder. When the blood sample 107 specimen was in a liquid state, the back and forth rotation of the test cup 105 could not drive the cup cover 104 with a small cylinder, and the signal reflected by the sensor 101 was a straight line. When the blood sample 107 began to solidify, the test cup 105 and the cup cover 104 Resistance is generated between the cylinders due to fibrin adhesion, and the rotation of the test cup 105 drives the cup cover 104 to move simultaneously. As time goes by, the fibrin will gradually dissolve and the resistance will gradually decrease. This signal will depict a unique thromboelastogram through the sensor.

The current thrombelastograph has the following defects:

Use the suspension wire to measure the cup cover, detect the tension received by the suspension wire, and reflect the different data changes on the sensor, so that the measurement results will be different due to the difference in the suspension wire material, resulting in unused test results. The test accuracy is high for the suspension wire material. The higher requirements also make the price of the drape wire higher, and on the other hand increase the user's use cost.

Utility model content

In view of this, the utility model provides a blood coagulation detection instrument, the blood coagulation detection instrument includes a testing mechanism, the testing mechanism includes a rotating unit, a testing unit and a bracket supporting the above components, the rotating unit includes a first magnetic body, a second Two magnetic bodies, a first servo motor and a rotating rod, the first magnetic body and the second magnetic body are arranged at intervals, the first magnetic body is fixedly connected to the first servo motor, and one end of the rotating rod is connected to the second magnetic body The two magnetic bodies are fixedly connected, the other end of the rotating rod includes a guide tip and a tapered part, the guide tip is located at the end of the tapered part and is tapered, the diameter of the tapered part gradually decreases towards the guide tip and It is integrally arranged continuously with the guide tip, so that when the first magnet body rotates, it drives the second magnet body to rotate.

As a preferred solution, the position of the center of gravity of the first magnetic body is fixedly connected with the rotating shaft of the first servo motor, the second magnetic body is installed at one end of the rotating rod, and the position of the center of gravity of the second magnetic body is related to the rotating shaft. The rods are connected, and the straight line where the N pole and the S pole of the first magnetic force body is located is perpendicular to the rotation axis.

As a preferred solution, the magnetic force of the first magnetic body is greater than that of the second magnetic body, the first magnetic body and the second magnetic body are cylinders, and the first magnetic body and the second magnetic body are vertically spaced and arranged in parallel; and

The end of the rotating rod is provided with a through hole in the radial direction, the second magnetic body passes through the through hole, and the center of gravity of the second magnetic body is located in the through hole.

As a preferred solution, the support includes a mounting plate at the top of the support for installing the first servo motor, a positioning plate at the bottom of the support for supporting the rotation of the second magnet, and a vertical connecting plate and positioning plate. plate.

As a preferred solution, the test unit includes a code disc and a signal transceiver, the disc surface of the code disc is provided with at least one window, and the code disc is located on the rotating rod between the second magnetic body and the positioning plate on; and

The signal transceiver includes a pair of pulse emitters and pulse receivers located on both sides of the code disc, the pulse emitter transmits a pulse signal to the code disc, so that the pulse signal passes through the window of the code disc, and the pulse receiver receives the pulse signal , when the pulse signal emitted by the pulse emitter is blocked by the code disc, the pulse receiver will not receive the pulse signal.

As a preferred solution, a tapered boss is provided around the circumferential direction on the rotating rod on the side of the code disc away from the second magnetic body, and a positioning hole is arranged on the positioning plate, and the rotating rod passes through the positioning hole, the tapered boss abuts against the hole wall of the positioning hole.

As a preferred solution, the section of the window along the direction perpendicular to the surface of the code wheel is rectangular, and the section of the window along the radial direction of the code wheel is trapezoidal.

As a preferred solution, the code wheel includes four windows, and the four windows are arranged at equal intervals along the circumferential direction of the code wheel.

As a preferred solution, the body of the rotating rod passing through the positioning hole is provided with a limiting groove, and a limiting buckle is arranged in the limiting groove.

As a preferred solution, it is characterized in that the limiting groove is an annular groove arranged around the circumferential direction of the rotating rod.

As can be seen from the above technical solutions, the utility model embodiment has the following advantages:

The coagulation detection instrument provided by the utility model, the coagulation detection instrument includes a testing mechanism, the testing mechanism includes a rotating unit, a testing unit and a bracket supporting the above-mentioned components, and the rotating unit includes a first magnetic body, a second magnetic body, a first A servo motor and a rotating rod, the first magnetic body and the second magnetic body are arranged at intervals, the first magnetic body is fixedly connected to the first servo motor, and one end of the rotating rod is fixedly connected to the second magnetic body, The other end of the rotating rod includes a guide tip and a tapered portion, the guide tip is located at the end of the tapered portion and is tapered, the diameter of the tapered portion gradually decreases toward the guide tip and is continuously arranged with the guide tip. One body, so that when the first magnetic body rotates, it drives the second magnetic body to rotate. Using the effect of magnetic attraction, the rotation of the rotation can be flexibly controlled, and the loss of force in the transmission process can be avoided, so that the operation of the test process is simple, and the test process is improved. Test accuracy, save user cost.

Description of drawings

Fig. 1 is the structural representation of prior art;

Fig. 2 is a structural diagram of an embodiment of the utility model coagulation detection instrument;

Fig. 3 is an exploded view of an embodiment of the coagulation detection instrument of the present invention;

Fig. 4 is a schematic diagram of placing a sample cup assembly in an embodiment of the coagulation detection instrument of the present invention;

Fig. 5 is a schematic diagram of adding a blood sample into the cup according to an embodiment of the coagulation detection instrument of the present invention;

Fig. 6 is a schematic diagram of stirring a blood sample by a test mechanism of an embodiment of the coagulation detection instrument of the present invention;

Fig. 7 is a schematic diagram of another perspective of Fig. 6;

Fig. 8 is a schematic diagram of the operation of taking off the cup cover of an embodiment of the coagulation detection instrument of the present invention;

Fig. 9 is a schematic diagram of an embodiment of the coagulation detection instrument of the present invention after the cup cover is taken off;

Fig. 10 is a schematic diagram of an embodiment of the coagulation detection instrument of the present invention, the cover plate is removed, the sample cup assembly is reset, and the sample cup assembly is removed;

Fig. 11 is a structural diagram of a sample cup assembly of an embodiment of the coagulation detection instrument of the present invention;

Fig. 12 is a structural diagram of the connection between the code disc and the rotating rod of an embodiment of the coagulation detection instrument of the present invention;

Fig. 13 is a sectional view in the V direction in Fig. 12;

Fig. 14 is a structural diagram of another perspective of Fig. 12;

Fig. 15 is a structural diagram of a constant temperature auxiliary plate of an embodiment of the coagulation detection instrument of the present invention.

Detailed ways

The embodiment of the utility model provides a blood coagulation detection instrument, which adopts the function of magnetic attraction, can flexibly control the rotation, avoids the loss of force in the transmission process, makes the test process easy to operate, improves the test accuracy, and saves the user's use cost.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present utility model.

As shown in FIG. 2 , an embodiment of the coagulation detection instrument of the present invention, the instrument includes a test mechanism 110 for detecting blood elasticity, a sample placement mechanism 120 for placing a blood sample, and a test mechanism for realizing that the test mechanism is close to or a transmission mechanism 130 away from the sample placement mechanism;

The test mechanism comprises a rotating unit, a testing unit and a support for supporting the above-mentioned components. The rotating unit includes a first magnetic body 111, a second magnetic body 112, a first servo motor 113 and a rotating rod 114. The first magnetic body 111 and The second magnetic force body 112 is arranged at intervals, the first magnetic force body 111 is fixedly connected with the first servo motor, and the second magnetic force body 112 is fixedly connected with the rotating rod 114, so that the first magnetic force body 111 drives the rotating rod when rotating. The second magnet body 112 rotates;

The sample placement mechanism includes a constant temperature unit 121 for holding blood samples and a sample cup assembly 122 for containing blood samples. The sample cup assembly 122 includes a cup body 1221 and a cup cover 1222. The cup body 1221 has an open end The cup cover 1222 is closed with the opening of the cup body 1221, and the surface of the cup cover 1222 facing the cup body 1221 is provided with stirring fins 1223, and the stirring fins 1223 are accommodated with the cup body 1221 Inside, the cup cover 1222 is provided with a through hole matched with the rotating rod 114, so that the transmission rod is inserted into the through hole to drive the cup cover 1222 to rotate;

When the testing mechanism is in the first position, the rotating rod 114 is inserted into the through hole of the cup cover 1222 to realize the connection between the rotating rod 114 and the cup cover 1222;

When the test mechanism is in the second position, the transmission rod drives the cup cover 1222 away from the cup body 1221 and makes the stirring fin 1223 inside the cup body 1221, and the first servo motor 113 rotates at a preset speed The angle drives the first magnetic body 111 to rotate, and the first magnetic body 111 drives the second magnetic body 112 to rotate under the action of the magnetic force, and the second magnetic body 112 drives the stirring blade 1223 in the cup body 1221 internal rotation,

The test unit also includes a signal generator and a processor, the signal generator generates a pulse signal according to the rotation of the second magnetic body 112, and sends the pulse signal to the processor, and the processor uses the received The signal is plotted on a thromboelastogram.

The blood coagulation detection instrument provided by the utility model adopts the effect of magnetic attraction, and the cup cover 1222 is stirred by the traction force of the first magnetic body 111 and the second magnetic body 112 to affect the blood sample in the cup body 1221, and the blood sample is passed through the code disc 123 and the signal transceiver. The microcosmic complex biological changes in the blood coagulation process are converted into pulse signals, which are collected and processed into thromboelastograms, which makes the test process easy to operate, reduces the workload of operators, and saves costs.

The structure of the coagulation detection instrument will be introduced in detail below.

The blood coagulation detection instrument includes a testing mechanism, a sample placement mechanism, and a transmission mechanism for making the testing mechanism approach or move away from the sample placement mechanism;

The test mechanism includes a rotating unit, a test unit and a bracket 124 supporting the above-mentioned components;

The rotating unit includes a first magnetic body 111, a second magnetic body 112, a first servo motor 113 and a rotating rod 114, that is, the N pole of the first magnetic body 111 and the S pole of the second magnetic body 112 are located on the same side, and the second magnetic body 112 is located on the same side. The S pole of a magnetic body 111 and the N pole of the second magnetic body 112 are located on the same side, and the effect of magnetic attraction is generated between the first magnetic body 111 and the second magnetic body 112, and the rotation of the first magnetic body 111 can drive the second magnetic body. The magnet body 112 rotates, the center of gravity position of the first magnet body 111 is fixedly connected with the rotating shaft of the first servo motor 113, the second magnet body 112 is installed on one end of the rotating rod 114, and the center of gravity of the second magnet body 112 The position is connected with the rotation rod 114, and the straight line where the N pole and the S pole of the first magnetic body 111 is located is perpendicular to the rotation axis.

Preferably, the first magnetic body 111 and the second magnetic body 112 are cylinders, and the magnetic value of the first magnetic body 111 is greater than that of the second magnetic body 112, so that the first magnetic body 111 can smoothly and easily Drive the second magnetic body 112 to rotate, wherein the center distance between the first magnetic body and the second magnetic body 112 is greater than the sum of the radii of the two, that is, the first magnetic body 111 and the second magnetic body 112 are vertically spaced and parallel The setting avoids the problem of inaccurate test results due to contact between the first magnetic body and the second magnetic body.

2 and 3, the bracket 124 includes a mounting plate 1241 at the top of the bracket 124 for mounting the first servo motor 113, a positioning plate 1242 at the bottom of the bracket 124 for supporting the rotation of the second magnet body 112 and The vertical plate 1243 connecting the mounting plate 1241 and the positioning plate 1242, the positioning plate 1242 is made of polytetrafluoroethylene or polyether ether ketone (PEEK) with a small friction coefficient, or other materials with good self-lubricating properties, Materials with high mechanical strength, high temperature resistance, impact resistance, flame retardant, acid and alkali resistance, hydrolysis resistance, wear resistance, fatigue resistance, and radiation resistance, especially for the material of the contact surface with the code disc 123. Force is reduced to a minimum.

Described test unit comprises signal generator and processor, and described signal generator comprises code disc 123, signal transceiver 125, and signal transceiver 125 sends the pulse signal that produces to processor, and processor will utilize the pulse signal that receives To draw a thromboelastogram, specifically, at least one window 1231 is set on the disc surface of the code disc 123, and the rotating rod 114 passes through the center of the code disc 123 and is fixedly connected with the code disc 123. Preferably, an interference fit In this way, the signal transceiver 125 includes a pair of pulse emitters and pulse receivers located on both sides of the code disc 123, the pulse emitter transmits a pulse signal to the code disc 123, passes through the window 1231 of the code disc 123, and the pulse receiver receives For the pulse signal, when the pulse signal emitted by the pulse emitter passes through the barrier on the code disc 123, the pulse signal will not pass through the window 1231, and the pulse signal will not be received by the pulse receiver.

The process of how to generate a thromboelastogram needs to be explained:

Driven by the first servo motor 113, the first magnetic body 111 rotates positively and negatively at a certain angle ω and in a regular manner. When the blood viscosity is tested to be maximum, the angle ω of the first magnetic body 111 rotation is a constant value. And should be greater than the rotation angle ω' of the code wheel 123, and ω' should be greater than the angle σ of the area where the window 1231 on the code wheel 123 is located. The magnitude of ω' rotates positively and negatively. After the cup cover 1222 is closely matched with the code disc 123, the blood sample contained in the cup body 1221 is stirred at the angle ω'. With the change of the adhesion of fibrin in the blood sample, the stirring fins 1223 at the lower end of the cup cover 1222 are generated. The change of resistance is reflected on the amplitude change of the rotation angle ω' of the code disc 123, and the above-mentioned signal transceiver 125 continuously transmits a certain number of pulses, which can only be accepted when the window 1231 of the code disc 123 passes through the transceiver port of the signal transceiver 125. If the pulse signal is received, other areas cannot receive the pulse signal. According to the number of received pulse signals, the change of the rotation angle ω' of the code disc 123 is judged. Blood Elasticity Map.

As shown in Figure 12 and Figure 13, preferably four windows 1231, the window 1231 is a rectangular window, the four rectangular windows are arranged at equal intervals along the circumferential direction of the code disc 123, the cross section of the window 1231 along the direction perpendicular to the surface of the code disc 123 The window 1231 is rectangular, and the section of the window 1231 along the radial direction of the code wheel 123 is trapezoidal, specifically, in the direction parallel to the surface of the code wheel 123, the section of the window 1231 is trapezoidal, that is, the section changes from top to bottom along the section. Narrow, preferably isosceles trapezoid, wherein 0<10<180 degrees, 0<β<90 degrees, by adopting such a structure, when the instrument itself is tilted, the edge of the window 1231 on the code wheel 123 will not block the pulse signal, Cause misjudgment, because factors such as errors in actual parts processing and assembly, vibration during instrument work, and unsatisfactory horizontal environment will inevitably cause the code disc 123 to swing a certain angle θ in the vertical direction, so that the actual signal It is impossible for the transceiver 125 to transmit the pulse signal s1 or s2 to be absolutely perpendicular to the surface of the code disc 123, which will result in an error in the number of pulses when the pulse is received, and when the window 1231 is designed as the above-mentioned isosceles trapezoid, it can avoid the cross-section of other shapes. error problem.

As shown in FIG. 14 , the code wheel 123 is located at one end of the rotating rod 114 close to the second magnetic body 112 , and the end of the rotating rod 114 is provided with a through hole 1226 along the radial direction, through which the second magnetic body 112 passes. In the through hole 1226 , the center of gravity of the second magnetic body 112 is located in the through hole 1226 , so that when the second magnetic body 112 rotates, no vibration will be generated due to asymmetrical center of gravity.

As shown in FIG. 14 , a tapered boss 1141 is provided around the circumferential direction on the rotating rod 114 on the side of the code disc 123 away from the second magnetic body 112 , and a positioning hole is provided on the positioning plate 1242 . The rotating rod 114 Through the positioning hole, the tapered boss 1141 abuts against the wall of the positioning hole, so that during the rotation of the rotating rod 114, the contact area between the rotating rod 114 and the positioning plate 1242 becomes smaller, and the friction The force is reduced, the influence of friction on the test results is minimized, and the accuracy of the test results is improved.

As shown in FIG. 3 , in order to prevent the rotating rod 114 from moving up and down on the positioning plate 1242, the rod body of the rotating rod 114 passing through the positioning hole is provided with a limiting groove 1142, and the limiting groove 1142 is for surrounding the rotating rod. 114 is provided with an annular groove in the circumferential direction, and a limit buckle 1143 is installed in the limit groove 1142. When the rotating rod 114 is subjected to an external force, due to the cooperation between the limit buckle 1143 and the limit groove 1142, the rotation rod 114 is limited. The axial movement and displacement make it difficult for the rotating rods 114 located on both sides of the positioning hole to move axially.

As shown in FIG. 14 , the other end of the rotating rod 114 includes a guide tip 1143 and a tapered portion 1144 . The guide and positioning function facilitates the insertion of the cup cover 1222. The tapered part 1144 itself has a certain taper, that is, the diameter of the tapered part 1144 gradually decreases toward the guide tip 1143, and it is continuously integrated with the guide tip 1143. It is the cup cover 1222. At the same time, it is also easy to assemble and not easy to fall off through interference fit, which avoids the problems of easy failure of blood sample detection and inaccurate test results caused by artificial assembly and vibration.

The sample placement mechanism includes a constant temperature unit 121, a sample cup assembly 122, and a cover removal unit. The structures of each part are described in detail below:

As shown in FIG. 3 , the constant temperature unit 121 includes a mounting base 1211 and a constant temperature control assembly located on the mounting base 1211. The constant temperature control assembly includes a heat insulating support plate 1212 and a constant temperature auxiliary plate installed on the heat insulating support plate 1212. 1213 and the constant temperature retainer 1214 installed on the lower surface of the constant temperature auxiliary plate 1213. The heat insulation support plate 1212 is made of non-metallic material with high heat insulation and hardness, which is used to fix and support the constant temperature auxiliary plate 1213 and prevent its temperature from diverging. The constant temperature holder 1214 is used to heat and detect the temperature of the constant temperature auxiliary plate 1213, detect whether the temperature of the constant temperature auxiliary plate 1213 is the required temperature threshold, if it is higher than the required temperature threshold, the constant temperature holder 1214 stops heating the constant temperature auxiliary plate 1213 , if the temperature is lower than the required temperature threshold, the constant temperature holder 1214 heats the constant temperature auxiliary plate 1213, thereby achieving the purpose of keeping the temperature of the constant temperature auxiliary plate 1213 constant at the required temperature threshold. In this embodiment, the required temperature The threshold is 37 degrees Celsius.

As shown in FIG. 15 , the thermostatic auxiliary plate 1213 is provided with a positioning groove 1215 for accommodating the sample cup assembly 122, and the sample cup assembly 122 is placed in the positioning groove 1215. In this embodiment, the positioning groove 1215 adopts a cylinder Structure, the axial direction of the cylinder is perpendicular to the surface of the constant temperature auxiliary plate 1213, a rectangular notch 1216 is provided on the end surface of the positioning groove 1215, and a handle matching the rectangular notch 1216 is provided on the outer surface of the cup body 1221 of the sample cup assembly 122 1224, the sample cup assembly 122 is placed in the positioning groove 1215, and the handle 1224 is stuck in the rectangular notch 1216. Of course, the shape of the positioning groove 1215 can be a square tube or other structural shapes, so that the sample cup assembly 122 can be placed in the positioning groove 1215 It is only necessary that there is no relative rotation in the blood sample, and there is no specific limitation. The positioning groove 1215 is used to position the sample cup assembly 122 to prevent it from shaking together due to the increase of fibrin viscosity of the blood sample during the test, which will affect the test result.

As shown in FIG. 11 , the sample cup assembly 122 includes a cup body 1221, which is a container with an opening at one end. The bottom of the cup body 1221 has a certain taper so that it can be placed in the positioning groove 1215 more easily. The shape of 1221 is compatible with positioning groove 1215 and gets final product, for example, positioning groove 1215 adopts cylinder, then cup body 1221 also relates to be cylinder, in the present embodiment cup body 1221 wall thickness is preferably 0.5 millimeter ~ 3 millimeters, volume is set as greater than 100 microliters, a handle 1224 is provided on the side wall of the cup body 1221, preferably, the handle 1224 is in the shape of a right triangle, and the handle 1224 is arranged on the side wall of the cup body 1221 near the opening, and the handle 1224 can be positioned The rectangular notch 1216 on the groove 1215 cooperates to limit the relative rotation between the cup body 1221 and the positioning groove 1215, preventing the rotation of the cup body 1221 from affecting the test results when testing the blood sample, and it is also convenient to take by hand, avoiding the human-made assembly of the cup. Cover 1222 is not in place and vibration factors cause inaccurate test results and test failure, which greatly reduces the cost of manpower and material resources.

As shown in FIG. 11, the sample cup assembly 122 also includes a cup cover 1222, which is circular and fits with the opening of the cup body 1221. A through hole is provided on the upper surface of the cup cover 1222. The through hole is specifically It can be a tapered hole 1225. Preferably, the tapered hole 1225 is located at the center of the cup cover 1222. The taper of the tapered hole 1225 adopts a Morse taper design and can cooperate with the tapered portion 1144 of the rotating rod 114. This The structure utilizes the self-locking function of the Morse taper itself, and the principle that the axial force can be converted into a rotating radial force makes the cup cover 1222 closely connected with the tapered portion 1144 of the rotating rod 114 . The lower surface of the cup cover 1222 is provided with at least one stirring fin 1223, the stirring fins 1223 are evenly distributed on the lower surface of the cup cover 1222, the stirring fins 1223 can stir the blood sample in the cup body 1221 under the drive of the rotating rod 114, and pass Stirring the blood sample by the stirring fins can make the stirring fins better contact, increase the contact area and stirring resistance, facilitate the drawing of the coagulation degree of the blood sample, and improve the test accuracy.

As shown in FIG. 11 , preferably, four stirring fins 1223 are uniformly arranged around the center of the circle on the lower surface of the cup cover 1222, and the four stirring fins 1223 are symmetrically distributed on the lower surface of the cup cover 1222, so that the cup cover 1222 can The force is uniform in the middle, and the vibration caused by the unbalanced distribution of the stirring blades is avoided.

As shown in FIG. 11, preferably, each stirring blade 1223 is n-shaped, that is, each stirring blade 1223 has two stirring teeth, and the two stirring teeth are arranged in parallel. Through this structure, in the process of stirring Improve the toughness of the stirring fins 1223 and increase the resistance of the blood sample to the stirring fins 1223, more accurately monitor the coagulation degree of the blood sample, and improve the test accuracy.

Preferably, the cup cover 1222 and cup body 1221 of the sample cup assembly 122 are made of biocompatible polymer materials with a certain degree of toughness, both of which are disposable consumables. Before use, the cup cover 1222 and The cup body 1221 is buckled and sealed to ensure the cleanliness of the inside of the cup body 1221 and prevent the blood sample from being polluted.

As shown in FIG. 9 and FIG. 10 , the sample placement mechanism also includes a cover removal unit, which is used to release the cup cover 1222 from the rotating rod 114 after the test, so that the operator can remove the sample cup assembly 122 as a whole.

As shown in FIG. 9 and FIG. 10 , the capping unit includes a force application assembly 126, a connection plate 1261 installed on the force application assembly 126 at one end, and a cover removal plate 1262 installed at the other end of the connection plate 1261. The plate 1262 can be rotated at a certain angle under the action of the force applying component 126 to directly above the positioning groove 1215, preventing the sample cup assembly 122 from being lifted up with the rotating rod 114, that is, preventing the sample cup assembly 122 from continuing to rise along the axial direction of the rotating rod 114 , so that the sample cup assembly 122 is separated from the rotating rod 114, which can play the role of automatic cover removal, and solves the problem of inaccurate results, errors or test results caused by medical personnel with many steps, heavy workload, and artificial assembly. The problem of failure is the automatic assembly and connection of the cup cover 1222 and the rotating rod 114. After the test is completed, the cup cover 1222 is automatically removed by the cover plate 1262 to solve the problem of heavy workload and complicated operation process for medical personnel.

As shown in Figure 9 and Figure 10, preferably, the force applying component 126 can adopt a servo motor, the servo motor is installed on the support of the constant temperature unit 121, the connecting plate 1261 is connected with the rotating shaft of the servo motor, and the servo motor is controlled by outputting a control signal. The motor rotates, drives the connecting plate 1261, and then drives the cover removal plate 1262 to rotate, the rotation surface of the cover removal plate 1262 can be parallel to the upper surface of the cup cover 1222, that is, rotate along the horizontal direction, and of course also can rotate in the vertical direction. That is, the cover removal plate 1262 is rotated from top to bottom to be directly above the positioning groove 1215, and in this embodiment, the cover removal plate 1262 is rotated horizontally to be directly above the positioning groove 1215.

Preferably, one end of the cover removal plate 1262 has a cylindrical boss connected to the connecting plate 1261, and the other end of the cover removal plate 1262 has a semicircular notch, so that the cover removal plate 1262 can be better rotated to the top of the cup cover 1222 , making the uncapping process more stable and less prone to deflection.

Preferably, the cover removal unit also includes a first positioning induction switch, which is used to locate the initial position of the cover removal plate 1262. The angle from the initial position to the position directly above the positioning groove 1215 can be set as required, and the rotation angle can be greater than zero. , the first positioning sensor switch is located on the mounting support 124. In this embodiment, the rotation angle of the cover removal plate 1262 is 90 degrees. Directly above, the first positioning sensor switch 1263 is a pulse transceiver, the pulse signal is reflected by the cover plate 1262, the first positioning sensor switch 1263 outputs a signal, the servo motor stops rotating, and the cover plate 1262 is positioned at the initial position.

Combining with Fig. 2 and Fig. 3, the following introduces the structure of the transmission mechanism that realizes that the testing mechanism is close to or away from the sample placement mechanism, including the following:

The transmission mechanism 130 includes a ball screw 131 and a guide rail 132. The ball screw 131 includes a screw 1311 and a nut 1312. The ball screw 131 can also adopt other devices that can slowly lift or lower the test mechanism. Of course, if it can be solved The problem of shock absorption and buffering can also be replaced by a cylinder, without limitation.

The bracket 124 of the test mechanism includes an adapter plate 1241 for connecting the nut 1312 and the slider, and the slider 1321 is reciprocally slidable on the guide rail 132. In this embodiment, the screw rod 1311 of the ball screw is used as the active body. A servo motor is provided at the bottom of the screw rod 1311, the servo motor drives the screw rod 1311 to rotate, the slider can slide up and down on the guide rail 132 to play a guiding role, and the rotation of the screw rod 1311 drives the nut 1312 to move linearly, so that the testing mechanism on the nut 1312 It can be realized close to or far away from the sample placement mechanism.

Preferably, the test mechanism also includes a receiving plate 115 for installing guide rails 132, the guide rails 132 are installed on the surface of the receiving plate 115, and the receiving plate 115 is placed perpendicular to the support of the sample placement mechanism, that is, the receiving plate 115 is arranged along the vertical direction, and the guide rail 132 is arranged on the receiving plate 115 along the vertical direction.

Preferably, the testing mechanism further includes a second positioning sensing switch (not shown in the figure) and a third positioning sensing switch (not shown in the figure) for positioning the position of the slider, the second positioning sensing switch and The third positioning induction switch is all arranged on the receiving plate 115 on the same side of the guide rail 132, the second positioning induction switch and the third positioning induction switch are all arranged on the receiving plate on the same side of the guide rail, the second positioning induction switch The switch is used to output a signal when the test mechanism is in the first position. When it is in the first position, the rotating rod 114 is connected to the cup cover 1222. The third position induction switch is used to output a signal when the test mechanism is in the second position. In the second position, the rotating rod 114 drives the cup cover 1222 to rotate and stir the sample in the cup body 1221 .

The receiving plate is provided with a fourth positioning sensor switch 1264, which is used to output a signal when the slider is at the top of the guide rail, so as to prompt the cup cover 1222 to move away from the cup body 1221 under the drive of the testing mechanism. The four-position induction switch is set on the receiving plate 115 near the top of the guide rail 132, and is used for placing the sample or removing the sample when the test is finished

It should be noted that the positioning sensor switch can be set at a predetermined position for prompting the positioning, the sensor switch can include a transmitter and a receiver, the transmitter emits a light signal to the receiver, and a blocking plate 1265 can be installed on the slider to use In order to block the light signal, if the receiver does not receive the light signal, it means that the blocking plate 1265 on the slider has moved between the transmitter and the receiver, and the position sensor switch can output a signal to prompt the slider to move to a predetermined position.

Preferably, the instrument also includes a display screen for displaying measurement results, the processor generates a thromboelastogram according to the pulse signal, and then sends the thromboelastogram to the display screen for display. Of course, the display screen can not only display the measurement results, but also Other parameters may be displayed, such as operating time, etc., which are not specifically limited.

Preferably, the instrument also includes a level, which is used to detect whether the instrument is currently placed horizontally. The level can also display the level status through the display screen, which is convenient for the operator to adjust the state of the instrument, avoids the situation that the instrument is not stable, and improves the level of the instrument. The detection accuracy of the instrument.

The testing mechanism includes an electrical control unit, the electrical control unit is electrically connected with the first positioning sensing switch 1263, the second positioning sensing switch and the third positioning sensing switch, the first positioning sensing switch 1263, the second positioning sensing switch and the third positioning sensing switch The switch circuit transmits the collected signal to the electrical control unit, and the electrical control unit controls the movement of the servo motor according to the signals of each positioning sensor switch, and controls the servo motor to stop rotating when it moves to the designated position. The electrical control unit can also be used to realize the control device as a whole. The electrical work can provide power for the display screen, etc., which will not be described in detail.

4 to 10, in order to facilitate the understanding of the utility model, the application scenario of an embodiment of the blood coagulation detection instrument is provided below for illustration:

The blood coagulation detection instrument is turned on and started, and the system is initialized;

The test mechanism corrects the initial positions of the code wheel 123 and the signal transceiver 125, so that the signal transceiver 125 can normally complete sending or receiving pulse signals after the code wheel 123 rotates and moves by an angle.

Place the sample cup assembly 122 in the positioning slot 1215 of the sample placement mechanism, the thermostat unit 121 starts heating, and keeps the temperature constant, the testing mechanism moves to the first position driven by the transmission mechanism, and the second positioning sensor switch outputs The signal prompts the testing mechanism to be in the first position. At this time, the rotating rod 114 is inserted into the tapered hole 1225 of the cup cover 1222. The rotating rod 114 is connected with the cup cover 1222. The transmission structure drives the testing mechanism to move upwards to the top of the guide rail 132. The output signal of the four-position induction switch prompts the test mechanism to be at the top of the guide rail 132. At this time, the cup body 1221 and the cup cover 1222 are in a state of complete separation. The tester adds a blood sample into the cup body 1221, and the test mechanism moves downward to In the second position, the output signal of the third positioning induction switch prompts the current position. At this time, the stirring fins 1223 on the cup cover 1222 extend into the blood sample in the cup body 1221, and the first servo motor 113 of the testing mechanism rotates. Driven by the first servo motor 113, the first magnetic body 111 rotates positively and negatively at a certain angle ω and in a regular manner. When the blood viscosity is measured to be maximum, the rotation angle ω of the first magnetic body 111 is a fixed value and should be greater than the rotation angle ω' of the code wheel 123, and ω' should be greater than the angle σ of the area where the window 1231 on the code wheel 123 is located, and under the action of the magnetic force, it drives the second magnetic force body 112 and drives the code wheel 123 to rotate at an angle ω' Amplitude of positive and negative rotation. After the cup cover 1222 is closely matched with the code disc 123, the blood sample contained in the cup body 1221 is stirred at the angle ω'. With the change of the adhesion of fibrin in the blood sample, the stirring fins 1223 at the lower end of the cup cover 1222 are generated. The change of resistance is reflected on the amplitude change of the rotation angle ω' of the code disc 123, and the above-mentioned signal transceiver 125 continuously transmits a certain number of pulses, which can only be accepted when the window 1231 of the code disc 123 passes through the transceiver port of the signal transceiver 125. If the pulse signal is received, other areas cannot receive the pulse signal. According to the number of received pulse signals, the change of the rotation angle ω' of the code disc 123 is judged. Blood Elasticity Map.

After the drawing of the blood elastogram is completed, it can be displayed or printed on the display screen. The cover-removing unit rotates above the positioning groove 1215 to block the cup cover 1222. The testing mechanism moves upwards driven by the transmission mechanism, and the rotating rod 114 also rises with the rising of the testing mechanism. At this time, the cup cover 1222 on the rotating rod 114 cannot continue to move upward due to the blocking of the cover removal unit, so that the cup cover 1222 is separated from the rotating rod 114 to achieve the purpose of automatic cap removal.

The function of the utility model is to solve the problems of complex operation process, easy failure of blood sample detection, misdiagnosis caused by inaccurate detection results, heavy workload of medical staff and high cost of the coagulation panorama detector currently on the market.

The utility model solves the problem of heavy workload and complicated operation process of medical staff by automatically assembling and connecting the sample cup cover 1222 with the tapered section at the lower end of the code disc 123, and automatically removing the cup cover 1222 through the cover plate 1262 after the test is completed , to avoid the problems of easy failure of blood sample detection and inaccurate detection results caused by artificial assembly and vibration. The question of cost.

During the whole operation, the doctor only needs to place the sample cup, press the test button, add blood sample to the sample cup, and take away the sample cup after the test. This instrument is easy to operate, which greatly reduces the workload of medical staff and improves the Work efficiency avoids inaccurate test results and test failures caused by artificially assembling the cup cover 1222 not in place and vibration factors, greatly reducing the cost of manpower and material resources.

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the present utility model and the above drawings are used to distinguish similar objects, and do not necessarily use Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, device and method can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read-only memory (ROM, Re10d Only Memory), random access memory (R10M, R10ndom 10ccess Memory), disk or CD-ROM, etc.

Those of ordinary skill in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the above-mentioned storage The medium can be read-only memory, magnetic or optical disk, etc.

A blood coagulation detection instrument provided by the utility model has been introduced in detail above. For those of ordinary skill in the art, according to the idea of the utility model embodiment, there will be changes in the specific implementation and application range. As mentioned above, the contents of this specification should not be construed as limiting the present utility model.

Claims (10)

1. a Hemostasis examination instrument, it is characterized in that, described Hemostasis examination instrument comprises mechanism for testing, mechanism for testing comprises rotating unit, test cell and support the support of above-mentioned parts, described rotating unit comprises the first magnetic force body, second magnetic force body, first servomotor and dwang, described first magnetic force body and the second magnetic force body interval are arranged, described first magnetic force body is fixedly connected with the first servomotor, one end of described dwang is fixedly connected with described second magnetic force body, the other end of described dwang comprises guiding tip and tapered portion, described guiding is most advanced and sophisticated is positioned at the end of tapered portion and tapered body, the diameter of described tapered portion reduces gradually towards guiding tip and is arranged to one continuously with guiding tip, described second magnetic force body is driven to rotate when rotating to make described first magnetic force body.

2. Hemostasis examination instrument according to claim 1, it is characterized in that, the centre of gravity place of described first magnetic force body is fixedly connected with the rotating shaft of described first servomotor, described second magnetic force body is arranged on one end of dwang, the centre of gravity place of the second magnetic force body is connected with dwang, and the N pole of described first magnetic force body is vertical with described rotating shaft with place, S pole straight line.

3. Hemostasis examination instrument according to claim 2, it is characterized in that, the magnetic force of described first magnetic force body is greater than the magnetic force of the second magnetic force body, and described first magnetic force body and described second magnetic force body are right cylinder, the first magnetic force body and the second magnetic force body vertically interval and be arrangeding in parallel; And

The end of described dwang is radially provided with through hole, and described second magnetic force body is through this through hole, and the centre of gravity place of the second magnetic force body is positioned at this through hole.

4. Hemostasis examination instrument according to claim 1, it is characterized in that, described support comprise be positioned at cantilever tip for install the first servomotor installing plate, be positioned at support bottom for the location-plate that supports the second magnetic force body and rotate and the vertical plate of connection plate and location-plate.

5. Hemostasis examination instrument according to claim 4, it is characterized in that, described test cell comprises code-disc and signal transceiver, and the card of described code-disc arranges at least one window, described code-disc the second magnetic force body and on dwang between described location-plate; And

Described signal transceiver comprises a pair impulse ejection pole and reception of impulse pole that are positioned at code-disc both sides, impulse ejection pole is to code-disc transponder pulse signal, to make pulse signal through the window of code-disc, reception of impulse pole receives this pulse signal, when the pulse signal launched when impulse ejection pole is stopped by code-disc, reception of impulse pole can not receive this pulse signal.

6. Hemostasis examination instrument according to claim 5, it is characterized in that, the dwang pressed on ring deviating from the second magnetic force body side at code-disc is circumferentially provided with cone boss in direction, described location-plate is provided with pilot hole, described dwang is through described pilot hole, and described cone boss is resisted against on the hole wall of described pilot hole.

7. Hemostasis examination instrument according to claim 6, is characterized in that, described window is rectangle along the cross section of vertical codes disk surface direction, and described window is trapezoidal along the cross section of the radial direction of code-disc.

8. the Hemostasis examination instrument according to claim 5 or 7, is characterized in that, described code-disc comprises four windows, and described four windows are arranged at equal intervals along code-disc circumferencial direction.

9. Hemostasis examination instrument according to claim 5, is characterized in that, described dwang is provided with stopper slot through the body of rod of pilot hole, is provided with limit buckle in described stopper slot.

10. Hemostasis examination instrument according to claim 9, is characterized in that described stopper slot is the ring-shaped groove arranged around dwang circumferencial direction.