Detection device of thrombelastogram instrument

Abstract

The utility model relates to the technical field of blood sample detection equipment, and discloses a detection device of a thrombelastogram instrument, which is arranged on a thrombelastogram instrument body and comprises a bracket, a detection head, a control panel and an automatic lifting mechanism, an adjusting plate and a driving assembly used for driving the adjusting plate to move are connected to the connecting plate in a sliding mode, and the bracket is installed at the end, away from the connecting plate, of the adjusting plate; the problems that in the prior art, ascending and descending of a bracket are manually controlled, operation control is not convenient enough, and meanwhile blood samples and related reagents are inconvenient to add into a sample cup are solved.

Description

Technical Field

[0001] This utility model relates to the field of blood sample testing equipment technology, specifically to a thromboelastography device. Background Technology

[0002] Thromboelastography is an analyzer that detects dynamic changes in blood coagulation. It is a non-invasive diagnostic instrument and currently the most important tool for analyzing coagulation function during surgery. It is used to monitor and analyze the coagulation state of blood samples, thus playing an auxiliary role in assessing a patient's clinical hemostasis symptoms. The final result of the coagulation process is the formation of a blood clot, and the physical properties of the blood clot, such as its strength and stability, determine whether it has normal coagulation function.

[0003] The thromboelastography (TEG) device mainly consists of a stainless steel sample cup, a small cylinder inserted into the cup, a suspension wire connecting to the cylinder, a bracket supporting the sample cup, and a sensor on the suspension wire. The sample cup contains the blood sample to be tested, and the suspension wire and other components are located in the detection head. During testing, the detection head is adjusted so that the small cylinder connected to the suspension wire is inserted into the blood sample, and the sample cup rotates back and forth at a certain angle relative to the small cylinder. As time increases, due to changes in the adhesiveness of fibrinogen in the blood sample, the resistance generated by the blood sample to the cylinder on the cup lid changes. The force transmitted to the suspension wire through the cylinder on the cup lid changes with the coagulation process, so the torque on the suspension wire also changes with the coagulation process. The data obtained by the sensor changes accordingly, thus achieving the purpose of detecting the dynamic process of coagulation.

[0004] In existing technologies, sample cups are typically supported on a tray. During the thromboelastography test, the raising and lowering of the tray is manually controlled. When raising the tray, the operator needs to hold the upper part of the machine with one hand, pull the tray upward with the other, and use their fingers to hold the lower part. This operation is not convenient and affects the stability of the tray. Furthermore, contact between the hand and the tray can easily cause blood contamination, affecting the accuracy of the test results. At the same time, the tray is often located below the detection head. After the sample cup is placed on the tray, blood samples and related reagents need to be added to the sample cup. The detection head and the machine itself, located above, will obstruct the sample addition operation.

[0005] Therefore, the inventors have proposed a detection device for a thromboelastography instrument to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a detection device for a thromboelastography instrument, which solves the problems in the prior art where the raising and lowering of the support is manually controlled, making operation inconvenient, and adding blood samples and related reagents to the sample cup is also inconvenient.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A detection device for a thromboelastography instrument is mounted on the instrument body and includes a bracket, a detection head, and a control panel. It also includes an automatic lifting mechanism with a connecting plate horizontally mounted on the automatic lifting mechanism. An adjusting plate and a drive assembly for moving the adjusting plate are slidably connected to the connecting plate, and the bracket is mounted on the end of the adjusting plate away from the connecting plate.

[0009] Furthermore, the automatic lifting mechanism includes an embedded mounting box and a telescopic component. The embedded mounting box is installed inside the thromboelastography instrument. The telescopic component is fixed inside the embedded mounting box. The telescopic end of the telescopic component extends out of the embedded mounting box and is connected to a connecting seat. The connecting plate is detachably installed on the connecting seat.

[0010] Furthermore, the telescopic end face of the telescopic component is provided with an inwardly recessed threaded hole, and a first bolt that is threadedly engaged with the threaded hole is fixed on the connecting seat.

[0011] Furthermore, a guide rod is fixed to the outer wall of the embedded mounting box, and a guide hole is provided on the side of the first bolt for the guide rod to pass through.

[0012] Furthermore, one end face of the connecting plate is provided with a sliding cavity that opens towards one side of the end face. The adjusting plate is slidably disposed in the sliding cavity. The driving assembly is located in the sliding cavity and is connected to the adjusting plate and the inner side wall of the sliding cavity respectively. The driving assembly includes a U-shaped groove, a Z-shaped transmission plate and a motor. There are two U-shaped grooves arranged symmetrically. One U-shaped groove is fixedly connected to the inner end of the sliding cavity, and the other U-shaped groove is slidably connected to the sliding cavity and fixedly connected to the adjusting plate. There are two Z-shaped transmission plates, which are slidably disposed in the U-shaped grooves respectively. Each U-shaped groove is provided with two gears. The gears are respectively connected to the Z-shaped transmission plates. Each gear is connected to a transmission rod. The transmission rods on the gears on the same side of the two U-shaped grooves are hinged together. The motor is fixed on the connecting plate and the output end of the motor is connected to a gear in the U-shaped groove at the inner end of the sliding cavity.

[0013] Furthermore, the two ends of the Z-shaped transmission plate are respectively provided with tooth grooves, and the gears mesh with the tooth grooves of the Z-shaped transmission plate for transmission.

[0014] Furthermore, a lifting base is fixed to the end of the adjusting plate away from the connecting plate, the bracket is installed on the top of the lifting base, and a rubber buffer pad is provided at the bottom of the lifting base.

[0015] Furthermore, a pad is provided at the bottom of the thromboelastography instrument body, and when the adjustment plate is in the extended state, the lifting base is supported on the pad.

[0016] The beneficial effects of this utility model are:

[0017] This application uses an automatic lifting mechanism to drive the connecting plate, adjusting plate, and bracket to rise and fall vertically. It is easy to operate, runs smoothly, and reduces human interference errors. At the same time, the adjusting plate can extend or retract horizontally. During testing, the adjusting plate extends so that the bracket is located outside the machine head. This structural design ensures that when adding blood samples and related reagents to the sample cup, it will not be obstructed by the detection head and the machine head. The structure is simple and easy to operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the detection device of the thromboelastography instrument of this utility model;

[0019] Figure 2 This is a partial perspective view of the detection device of the thromboelastography instrument according to the present invention;

[0020] Figure 3 This is a schematic diagram of the connecting seat in the detection device of a thromboelastography instrument according to this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the drive component in the contracted state in the detection device of the thromboelastography instrument of this utility model;

[0022] Figure 5 This is a schematic diagram of the actual drive component of the detection device of the thromboelastography instrument of this utility model in an extended state.

[0023] in,

[0024] 1. Machine head; 2. Machine base; 3. Foot pad; 4. Bracket; 5. Detection head; 6. Control panel; 7. Constant temperature bath; 8. Embedded mounting box; 9. Telescopic component; 10. Connecting seat; 11. Guide rod; 12. First bolt; 13. Guide hole; 14. Second bolt; 15. Connecting plate; 16. Adjusting plate; 17. U-shaped groove; 18. Z-shaped transmission plate; 19. Motor; 20. Gear; 21. Transmission rod; 22. Lifting base; 23. Rubber buffer pad; 24. Pad plate. Detailed Implementation

[0025] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] This embodiment proposes a detection device for thromboelastography, such as... Figures 1 to 5 As shown, the thromboelastography (TEG) instrument is mounted on the body of the instrument. In this embodiment, the TEG instrument body includes a base 2 and a head 1 mounted on the base 2. Foot pads 3 are provided at the four corners of the bottom of the base 2. This is a conventional structure of thromboelastography instruments in the prior art and will not be described in detail here. The TEG instrument's detection device includes a bracket 4, a detection head 5, and a control panel 6. The control panel 6 is located at the front end of the head 1, and the detection head 5 is installed on the lower side of the head 1. A constant temperature bath 7 is provided on the bracket 4. During detection, the sample cup is placed in the constant temperature bath 7. The TEG instrument's detection device also includes an automatic lifting mechanism. A connecting plate 15 is horizontally mounted on the automatic lifting mechanism. An adjusting plate 16 and a drive assembly for moving the adjusting plate 16 are slidably connected to the connecting plate 15. The bracket 4 is installed at the end of the adjusting plate 16 away from the connecting plate 15. The automatic lifting mechanism drives the connecting plate 15, adjusting plate 16, and bracket 4 to rise and fall vertically, which is convenient to operate, runs smoothly, and reduces human interference errors. At the same time, the adjusting plate 16 can extend or retract horizontally. During testing, the adjusting plate 16 extends so that the bracket 4 is located outside the head 1. This structural design ensures that when blood samples and related reagents are added to the sample cup, they will not be obstructed by the detection head 5 and the head 1.

[0028] In practice, the automatic lifting mechanism can be a motor 19 and a lead screw mechanism. The motor 19 is fixedly installed inside the head 1, and the lead screw is set vertically. The lead screw is rotatably installed on the body of the thromboelastography instrument through bearings. The top end of the lead screw is rotatably connected to the head 1, and the bottom end is rotatably connected to the base 2. The output end of the motor 19 is fixedly connected to one end of the lead screw. A lifting block is set on the lead screw. A guide rod 11 is vertically set on one side of the lead screw on the body of the thromboelastography instrument. The lifting block has a threaded hole for the lead screw to pass through and a through hole for the guide rod 11 to pass through. The motor 19 drives the lead screw to rotate, thereby driving the lifting block to rise and fall along the set direction. In this embodiment, the automatic lifting mechanism includes an embedded mounting box 8 and a telescopic component 9. The embedded mounting box 8 is fixedly installed on the top inner side of the machine head 1 by bolts. The telescopic component 9 is fixedly installed inside the embedded mounting box 8 by bolts. The telescopic end of the telescopic component 9 protrudes through the bottom wall of the embedded mounting box 8 and is detachably connected to a connecting seat 10. The connecting plate 15 is detachably installed on the connecting seat 10. In this embodiment, the telescopic component 9 can be an electric telescopic rod or a cylinder. By extending or shortening the telescopic component 9, the connecting seat 10 and the connecting plate 15 can be driven to lift and lower in the vertical direction. The structure is simple, the installation is convenient, and the lifting is stable.

[0029] In practice, the connecting seat 10 and the telescopic member 9 can be connected by a snap-fit ​​mechanism. A slot is provided at the telescopic end of the telescopic member 9, and a buckle is provided on the connecting seat 10 to engage with the slot. In this embodiment, the telescopic end face of the telescopic member 9 is provided with an inwardly recessed threaded hole, and a first bolt 13 that engages with the threaded hole is welded to the upper end face of the connecting seat 10. The connecting seat 10 is detachably and fixedly installed on the telescopic member 9 by the first bolt 13, ensuring a reliable connection and convenient assembly and disassembly.

[0030] An embedded mounting box 8 has a guide rod 11 fixed to its bottom wall. The guide rod 11 is vertically arranged. The connecting seat 10 has a guide hole 12 on one side of the first bolt 13 for the guide rod 11 to pass through. When the telescopic member 9 drives the connecting seat 10 to rise and fall, the rising and falling is more stable under the action of the guide rod 11. In this embodiment, the bottom end of the guide rod 11 does not contact the base 2, and the distance between the two allows the connecting seat 10 to be easily removed from the telescopic member 9 and the guide rod 11.

[0031] In the above embodiment, the connecting seat 10 is Ω-shaped, and first threaded holes are opened at both ends of the connecting seat 10. One end face of the connecting plate 15 is attached to the flat surface of the connecting seat 10, and a second threaded hole is opened on the connecting plate 15 corresponding to the first threaded hole. The connecting seat 10 and the connecting plate 15 are locked and fixed by two second bolts 14. This structural design ensures a reliable connection and convenient assembly and disassembly.

[0032] The end face of the connecting plate 15 away from the connecting seat 10 is provided with a sliding cavity that opens towards one side of the end face. The adjusting plate 16 is slidably disposed in the sliding cavity along the length direction of the connecting plate 15. The driving assembly is located in the sliding cavity and is connected to the adjusting plate 16 and the inner sidewall of the sliding cavity respectively. In practice, the driving assembly can be a cylinder, which is fixed in the inner end of the sliding cavity, and the telescopic end of the cylinder is fixedly connected to one end of the adjusting plate 16. In this embodiment, the driving assembly includes a U-shaped groove 17, a Z-shaped transmission plate 18, and a motor 19. There are two U-shaped grooves 17, which are symmetrically arranged. One U-shaped groove 17 is fixedly connected to the inner end of the sliding cavity and abuts against the inner sidewall of the sliding cavity. The other U-shaped groove 17 is slidably connected in the sliding cavity and is fixedly connected to the adjusting plate 16. Two Z-shaped transmission plates 18 are provided corresponding to the U-shaped grooves 17 and are slidably disposed in the corresponding U-shaped grooves 17 respectively. Each U-shaped groove 17 is provided with two gears 20. Distributed at both ends of the U-shaped groove 17, gears 20 are rotatably mounted within the U-shaped groove 17 via pins. Each gear 20 is connected to a Z-shaped transmission plate 18. Each gear 20 is connected to a transmission rod 21. The transmission rods 21 on the gears 20 located on the same side of the two U-shaped grooves 17 are hinged together. A motor 19 is fixed to the outside of the connecting plate 15, and its output end passes sequentially through the top wall of the sliding cavity and the top wall of the U-shaped groove 17, and is connected to a gear 20 within the U-shaped groove 17 at the inner end of the sliding cavity. The Z-shaped transmission plate 18 has toothed grooves at both ends, and the gears 20 mesh with these grooves for transmission.

[0033] In the above embodiment, one of the gears 20 is driven to rotate by the motor 19, and the other three gears 20 are driven to rotate by the transmission rod 21 and the Z-shaped transmission plate 18, so that the adjusting plate 16 can extend and retract along the length of the connecting plate 15. The structure is compact and can achieve stable transmission within the limited installation space inside the connecting plate 15. The components of the drive assembly are all existing profiles, which are easy to obtain, have low cost, and are easy to implement.

[0034] The end of the adjusting plate 16 away from the connecting plate 15 is fixed with a lifting base 22. The bracket 4 is detachably installed on the top of the lifting base 22 by bolts. A rubber buffer pad 23 is fixedly installed at the bottom of the lifting base 22. This design can dampen the lifting base 22 from below by means of the rubber buffer pad 23.

[0035] A pad 24 is fixedly installed on the outer side of the machine base 2, which extends a certain distance from the machine head 1. When the adjustment plate 16 is in the extended state, most of the plate body of the adjustment plate 16 is in a suspended state. The stability of the lifting base 22 and the bracket 4 is low. Therefore, the pad 24 is designed for support. The lifting base 22 can be supported on the pad 24, which makes it convenient for staff to pick up and put down sample cups.

[0036] In the above embodiments, the telescopic component 9 and the motor 19 are both electrically connected to the control panel 6.

[0037] Working principle:

[0038] When testing is required, initially, the telescopic component 9 is in the extended state, meaning the connecting seat 10 is located at the bottom of the guide rod 11 but not detached from it. At this time, the motor 19 is started via the control panel 6. The motor 19 drives one gear 20 to rotate, which in turn drives the other three gears 20 to rotate via the transmission rod 21 and the Z-shaped transmission plate 18. This causes the adjusting plate 16 to extend along the length of the connecting plate 15. The lifting base 22 and the bracket 4 then move horizontally outwards towards the machine head 1 until the lifting base 22 is just supported on the pad 24. At this point, the operator presses the sample cup with their thumb against the bottom of the constant temperature bath 7 of the bracket 4. With the support of the pad 24, the sample cup is smoothly placed into the constant temperature bath 7. 20 microliters of calcium chloride are then added to the sample cup using a pipette, and then another pipette is used to add... Take 340 microliters of activated and mixed blood sample and add it to the sample cup. During this process, the bracket 4 is located outside the head 1. When adding the sample and related test results, the staff's limbs and pipettes will not be obstructed by the detection head 5 or the head 1. Then, driven by the motor 19, the adjusting plate 16 retracts until the sample cup is just below the detection head 5. At this time, since most of the adjusting plate 16 is located inside the connecting plate 15, the connecting plate 15 can provide stable support for the adjusting plate 16 without shaking or shifting. The telescopic component 9 retracts and moves the bracket 4 upward until the opening of the sample cup is connected to the lower opening of the detection head 5, and the test begins. After the test is completed, the telescopic component 9 extends and moves the bracket 4 downward. The motor 19 drives the adjusting plate 16 to extend, and the staff uses tweezers to remove the sample cup and throw it into the waste bin. In this solution, the telescopic component 9 drives the lifting base 22 and the bracket 4 to move up and down, thereby enabling automatic control of the lifting and lowering of the bracket 4. This improves the convenience of adjusting the lifting of the bracket 4, reduces human interference errors, and makes the test results more accurate. At the same time, this solution does not change the setting of the detection head 5 of the thromboelastography instrument in the prior art. It only changes the bracket 4 and the lifting structure, thereby avoiding the technical problem of the detection head 5 and the machine head 1 obstructing the sample addition process.

[0039] It should be noted that in this embodiment, the connecting seat 10 and the telescopic member 9, the connecting plate 15 and the connecting seat 10, and the bracket 4 and the lifting base 22 are all detachably connected, which makes the detection device of this solution easy to maintain and replace later. When disassembling, the adjusting plate 16 is in the retracted state, the telescopic member 9 extends until the connecting seat 10 is separated from the guide rod 11, the second bolt 14 is loosened by screwing, and the connecting plate 15 can be removed from the connecting seat 10. Rotate the connecting seat 10 until the first bolt 13 separates from the telescopic end of the telescopic member 9 to complete the disassembly of the connecting seat 10. The installation is the reverse of the above disassembly steps, which is convenient for assembly and disassembly.

[0040] The above embodiments are merely preferred embodiments provided to fully illustrate the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present utility model are all within the protection scope of the present utility model.

Claims

1. A detection device for a thromboelastography instrument, mounted on the instrument body, comprising a bracket (4), a detection head (5), and a control panel (6), characterized in that: It also includes an automatic lifting mechanism, on which a connecting plate (15) is horizontally arranged, and an adjusting plate (16) and a driving component for moving the adjusting plate (16) are slidably connected. The bracket (4) is installed at the end of the adjusting plate (16) away from the connecting plate (15).

2. The detection device for a thromboelastography instrument according to claim 1, characterized in that: The automatic lifting mechanism includes an embedded mounting box (8) and a telescopic component (9). The embedded mounting box (8) is installed inside the thromboelastography instrument. The telescopic component (9) is fixed inside the embedded mounting box (8). The telescopic end of the telescopic component (9) extends out of the embedded mounting box (8) and is connected to a connecting seat (10). The connecting plate (15) is detachably installed on the connecting seat (10).

3. The detection device for a thromboelastography instrument according to claim 2, characterized in that: The telescopic end face of the telescopic component (9) is provided with an inwardly recessed threaded hole, and the connecting seat (10) is fixed with a first bolt (13) that is threadedly engaged with the threaded hole.

4. The detection device for a thromboelastography instrument according to claim 3, characterized in that: The outer wall of the embedded mounting box (8) is fixed with a guide rod (11), and the connecting seat (10) has a guide hole (12) on the side of the first bolt (13) for the guide rod (11) to pass through.

5. The detection device for a thromboelastography instrument according to claim 1, characterized in that: One end face of the connecting plate (15) is provided with a sliding cavity that opens towards one side of the end face. The adjusting plate (16) is slidably disposed in the sliding cavity. The driving assembly is located in the sliding cavity and is connected to the adjusting plate (16) and the inner wall of the sliding cavity respectively. The driving assembly includes a U-shaped groove (17), a Z-shaped transmission plate (18), and a motor (19). There are two U-shaped grooves (17) arranged symmetrically. One U-shaped groove (17) is fixedly connected to the inner end of the sliding cavity, and the other U-shaped groove (17) is slidably connected to the sliding cavity and fixedly connected to the adjusting plate (16). The Z-shaped... There are two transmission plates (18) that are slidably disposed in U-shaped grooves (17). Each U-shaped groove (17) is provided with two gears (20). The gears (20) are respectively connected to the Z-shaped transmission plate (18). Each gear (20) is connected to a transmission rod (21). The transmission rods (21) on the gears (20) on the same side of the two U-shaped grooves (17) are hinged together. The motor (19) is fixed on the connecting plate (15) and the output end of the motor (19) is connected to a gear (20) in the U-shaped groove (17) at the inner end of the sliding cavity.

6. The detection device for a thromboelastography instrument according to claim 5, characterized in that: The Z-shaped transmission plate (18) has tooth grooves at both ends, and the gears (20) mesh with the tooth grooves of the Z-shaped transmission plate (18) for transmission.

7. The detection device for a thromboelastography instrument according to claim 1, characterized in that: The adjusting plate (16) is fixed with a lifting base (22) at one end away from the connecting plate (15). The bracket (4) is installed on the top of the lifting base (22). A rubber buffer pad (23) is provided at the bottom of the lifting base (22).

8. The detection device for a thromboelastography instrument according to claim 7, characterized in that: The thromboelastography instrument has a pad (24) at the bottom. When the adjustment plate (16) is in the extended state, the lifting base (22) is supported on the pad (24).

Images