Test tube sample adding device for clinical examination

Abstract

The invention relates to a test tube sample adding device for clinical examination, belongs to the technical field of medical examination, and solves the problem that an existing test tube sample adding device is low in sample and examination reagent mixing speed. The test tube sample adding device comprises a groove body, a test tube placing frame is arranged in the groove body, and the top of the test tube placing frame is slidably connected with a guide rod which is fixed to the groove body; one side of the test tube placing rack is in contact with a cam, the cam is connected with a first rotation driving piece fixed in the groove body, the other side of the test tube placing rack is provided with a sleeve rod parallel to the guide rod, the sleeve rod is inserted into a sleeve fixed in the groove body and is in sliding connection with the sleeve, and a first elastic piece is arranged between the sleeve and the test tube placing rack; a feeding pipe is arranged above the test tube placing rack, the feeding pipe is provided with a switch valve to control the feeding pipe to be opened and closed, the feeding pipe is installed on a feeding pipe bearing mechanism, the feeding pipe bearing mechanism is connected with a lifting mechanism, the sample adding device is high in sample and test reagent mixing speed, and the test efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical testing, and in particular to a test tube sample adding device for clinical testing. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] When conducting clinical examinations, it is often necessary to conduct experiments on the extracted samples. When conducting experiments, the samples need to be added to test tubes, and then test reagents are added to the test tubes. The samples can be analyzed through changes in the samples to ultimately determine the pathology.

[0004] At present, sample adding equipment is mainly used to add test reagents to samples for sample testing. For example, patent CN213875701U discloses a sample adding device for medical testing. By rotating a cylindrical tube, multiple feed tubes can be controlled to open or close together. This ensures that the amount of sample liquid added to the stock solution is the same, avoids errors caused by adding sample liquid, and improves the accuracy of the experimental results. However, the above patent solution has the following defects: 1. The test tube was not shaken after adding the sample, and the mixing of the test reagent and sample was slow, which reduced the experimental efficiency.

[0005] 2. It is not possible to add different test reagents in one experiment, which makes it inconvenient to operate when multiple test reagents need to be added. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a test tube sample adding device for clinical examination, which can shake the test tube to increase the mixing rate of the test reagent and the sample, and can add multiple test reagents in one test, which is easy to operate.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions: An embodiment of the present invention provides a test tube sample loading device for clinical examination, comprising a trough body, a test tube rack being arranged in the trough body, the top of the test tube rack being slidably connected to a guide rod, the guide rod being fixed to the trough body, one side of the test tube rack being in contact with a cam, the cam being connected to a first rotating driving member fixed to the trough body, a sleeve rod being arranged on the other side of the test tube rack and being parallel to the guide rod, the sleeve rod being inserted into a sleeve fixed to the trough body and being slidably connected to the sleeve, a first elastic member being arranged between the sleeve and the test tube rack, a feeding tube being arranged above the test tube rack, the feeding tube being provided with a switch valve to control the conduction and closing of the feeding tube, the feeding tube being installed on a feeding tube bearing mechanism, and the feeding tube bearing mechanism being connected to a lifting mechanism.

[0008] Optionally, the feeding tube supporting mechanism includes a turntable and a rotation drive mechanism, a plurality of groups of feeding tubes are arranged in a circumferential direction on the turntable, the turntable is connected to the rotation drive mechanism to realize rotation around its own axis, and the rotation drive mechanism is connected to the lifting mechanism.

[0009] Optionally, the rotation driving mechanism includes a plurality of wheel rods arranged along the circumference of the turntable, one end of the wheel rod is fixed to the turntable, and the other end is rotatably connected to a pulley, and the pulley is embedded in a wheel groove arranged on the wall of the central through hole of the top plate. A gear is provided on one side of the turntable, the gear is connected to a second rotation driving member fixed to the groove body, the gear is meshed with an external gear ring arranged on the outer peripheral surface of the turntable, and the top plate is connected to the lifting mechanism.

[0010] Optionally, the lifting mechanism includes multiple lifting frames, which are connected to the feeding pipe supporting mechanism, at least one lifting frame is connected to a lead screw arranged vertically to the axis, both ends of the lead screw are rotatably connected to a support plate arranged on the trough body, the lead screw is connected to a third rotating driving member arranged on the support plate through a transmission mechanism, and all the lifting frames are slidably connected to the vertical guide column fixed on the support plate.

[0011] Optionally, the first elastic member is a first spring, which is sleeved on the outer circumference of the sleeve rod, with one end of the first spring connected to the end of the sleeve and the other end connected to the side of the test tube placement rack.

[0012] Optionally, the switch valve is an electrically controlled switch valve.

[0013] Optionally, the test tube placement rack includes a placement slot, a cover plate is provided at the top open end of the placement slot, the cover plate is slidably connected to the guide rod, the cover plate is provided with a plurality of through holes for the test tubes to pass through, the positions of the through holes correspond to the positions of the feeding tubes, and a support plate is provided in the placement slot for cooperating with the bottom of the test tube.

[0014] Optionally, the support plate passes through a plurality of slide columns, the bottom ends of the slide columns are fixed to the bottom surface of the placement groove, a limiting plate is provided at the top end, and a second elastic member is provided between the support plate and the bottom surface of the placement groove.

[0015] Optionally, the second elastic member is a second spring, the top end of the second spring is connected to the bottom surface of the support plate, and the bottom end of the second spring is connected to the bottom surface of the placement groove.

[0016] Optionally, an arc-shaped protrusion is provided on one side of the test tube placement rack, and the arc-shaped protrusion contacts the cam.

[0017] The beneficial effects of the present invention are as follows: 1. The test tube loading device of the present invention, the test tube rack is slidably connected with the guide rod, one side of the test tube rack is in contact with the cam, the cam can rotate under the drive of the first rotating driving member, the other side of the test tube rack is provided with a sleeve rod and a sleeve slidably connected, and a first elastic member is provided between the sleeve and the test tube rack. With the rotation of the cam, under the coordinated action of the cam and the first elastic member, the test tube rack can reciprocate along the guide rod, thereby realizing the shaking of the test tube, improving the mixing rate of the test reagent and the sample, and then improving the efficiency of the entire sample inspection work, and through the action of the first elastic member and the cam, the horizontal positioning of the test tube rack can be achieved, which is convenient for the subsequent rotation of the turntable to drive the feeding tube to align with the test tube for feeding.

[0018] 2. The test tube sample adding device of the present invention is provided with a turntable, which is connected to a rotating drive mechanism. A plurality of groups of feeding tubes are circumferentially arranged on the turntable. When in use, one group of feeding tubes is used to add samples, and the remaining groups of feeding tubes are used to add different test reagents. When the feeding tube for adding samples is rotated to correspond to the test tube placement rack, samples can be added to the test tubes. When the feeding tube for adding test reagents corresponds to the test tube placement rack, test reagents can be added to the test tubes. The turntable can be rotated so that the feeding tubes of different test reagents correspond to the test tube placement rack. Therefore, different test reagents can be added to the test tubes in one test by rotating the turntable. The operation is more convenient and the test efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 The overall structure of the embodiment 1 of the present invention is shown in cross section. Figure 1 ; Figure 3 The overall structure of the embodiment 1 of the present invention is shown in cross section. Figure 2 ; Figure 4 is a schematic diagram of the structure of the buffer mechanism of Example 1 of the present invention; Among them, 1. trough body, 2. supporting legs, 3. feeding tube, 4. placing groove, 5. cover plate, 6. supporting plate, 7. sliding column, 8. second spring, 9. guide rod, 10. cam, 11. sleeve rod, 12. sleeve, 13. first motor, 14. first motor seat, 15. first spring, 16. turntable, 17. top plate, 18. wheel rod, 19. pulley, 20. second motor, 21. gear transmission mechanism, 22. gear, 23. outer gear ring, 24. through hole, 25. solenoid valve, 26. lifting rod, 27. lifting plate, 28. slider, 29. vertical guide column, 30. screw, 31. support plate, 32. limit plate, 33. third motor. DETAILED DESCRIPTION Example 1 This embodiment provides a test tube sample adding device for clinical examination, such as Figure 1-Figure 3 As shown, it includes a trough body 1 with an open top, and a plurality of supporting legs 2 are arranged on the bottom surface of the trough body 1, and the supporting legs 2 are used to support the trough body 1. A test tube rack is arranged in the trough body 1, and the test tube rack is used to place test tubes. The test tube rack is connected to a shaking mechanism arranged in the trough body 1, and the shaking mechanism can drive the test tube rack to shake, thereby accelerating the mixing rate of the sample and the test reagent in the test tube, and a feeding tube bearing mechanism is arranged above the test tube rack, and the feeding tube bearing mechanism is provided with a plurality of feeding tubes 3. The feeding tube 3 is used to add samples or test reagents into the test tube, and the feeding tube bearing mechanism is connected to a lifting mechanism installed on the outside of the trough body 1, and the lifting mechanism can drive the feeding tube bearing mechanism to rise and fall, so as to realize that the bottom discharge end of the feeding tube 3 enters or leaves the test tube, and a switch valve is arranged on the feeding tube 3, and the switch valve is used to control the conduction or closing of the feeding tube 3.

[0021] The test tube placement rack comprises a placement slot 4 with an open top, a cover plate 5 is provided at the top open portion of the placement slot 4, and a plurality of through holes are provided on the cover plate 5. The positions of the through holes correspond to the positions of the feeding tubes 3, and the through holes are used for the test tubes to pass through. A support plate 6 is provided in the placement groove 4, and the support plate 6 is used to contact the bottom of the test tube to support the test tube. In this embodiment, the area of ​​the support plate 6 that contacts the bottom of the test tube is an arc-shaped concave surface that matches the shape of the bottom of the test tube. The arc-shaped concave surface can fit with the arc-shaped surface of the bottom of the test tube to provide stable support for the test tube.

[0022] Furthermore, in order to prevent the switch valve from colliding with the test tube and causing damage to the test tube during the descent of the feeding tube 3, the support plate 6 is installed inside the placement groove 4 through a buffer mechanism.

[0023] like Figure 4As shown, the buffer mechanism includes a plurality of slide columns 7, the bottom end of the slide column 7 is vertically fixedly connected to the bottom surface of the placement groove 4, a limit plate 32 is provided at the top end, the slide column 7 passes through the support plate 6, the support plate 6 is slidably connected to the slide column 7, the support plate 6 can move along the axial direction of the slide column 7, and a second elastic member is provided between the support plate 6 and the bottom surface of the placement groove 4. In this embodiment, the second elastic member adopts a second spring 8, the second spring 8 is sleeved on the outer periphery of the slide column 7, the top end of the second spring 8 is connected to the support plate 6, and the bottom end of the second spring 8 is connected to the bottom surface of the placement groove 4. When the switch valve touches the test tube, the second spring 8 can be compressed, and the support plate 6 and the test tube move downward, thereby playing a buffering role and preventing the test tube from being damaged by collision.

[0024] The shaking mechanism comprises a guide rod 9, a cam 10, a sleeve rod 11, a sleeve 12, a first rotation driving member, and a first elastic member.

[0025] The two ends of the guide rod 9 are fixed to the inner side surface of the trough body 1 . The guide rod 9 passes through the cover plate 5 and is slidably connected to the cover plate 5 . The entire test tube placement rack can move along the axial direction of the guide rod 9 .

[0026] A cam 10 is provided on one side of the placement slot 4 of the test tube placement rack. The cam 10 contacts the arc-shaped protrusion on the outer side of the placement slot 4. The cam 10 is connected to a first rotating driving member. In this embodiment, the first rotating driving member adopts a first motor 13. The first motor 13 is fixed to the inner side of the slot body 1 through a first motor seat 14. The first motor 13 can drive the cam 10 to rotate.

[0027] A plurality of sleeve rods 11 are provided on the outer side surface of the other side of the placement groove 4. The sleeve rods 11 are arranged parallel to the guide rod 9. Preferably, three sleeve rods 11 are provided and the three sleeve rods 11 are distributed along the vertical direction. The sleeve rods 11 are inserted into the sleeve 12 from one end of the sleeve 12 and are slidably connected with the sleeve 12. The other end of the sleeve 12 is fixed to the inner side surface of the groove body 1.

[0028] A first elastic member is provided between the sleeve 12 and the outer side surface of the placement groove 4. In this embodiment, the first elastic member is a first spring 15, which is sleeved on the outer periphery of the sleeve rod 11. One end of the first spring 15 is connected to the end of the sleeve 12, and the other end is connected to the outer side surface of the placement groove 4.

[0029] The first motor 13 of this embodiment drives the cam 10 to rotate. Under the action of the cam 10 and the first spring 15, the test tube placement rack performs reciprocating linear motion along the guide rod 9, thereby achieving the shaking of the test tube and further improving the mixing rate of the sample and the test reagent.

[0030] In this embodiment, the guide rod 9 is horizontally arranged, and correspondingly, the sleeve rod 11 and the sleeve 12 are also horizontally arranged. Through the action of the first spring 15 and the cam 10, the test tube placement rack can be positioned in the horizontal direction in the initial state, so as to facilitate the alignment of the feeding tube 3 with the corresponding test tube for feeding.

[0031] A feeding tube bearing mechanism is provided above the trough body 1 and the test tube placement rack. The feeding tube bearing mechanism is connected to the lifting mechanism and is provided with a plurality of feeding tubes 3 .

[0032] The feeding tube bearing mechanism comprises a rotating disk 16 , on which a plurality of feeding tubes 3 are arranged in a circumferential direction, and the arrangement positions of the feeding tubes 3 correspond to the arrangement positions of the through holes on the cover plate 5 .

[0033] The turntable 16 can rotate around its own axis. When the feeding tube 3 rotates to the top of the test tube to be fed on the test tube rack, the feeding tube 3 can feed the corresponding test tube to be fed. The turntable 16 rotates to switch different groups of feeding tubes 3 to feed the test tubes.

[0034] The rotating disk 16 is connected to a rotation driving mechanism, and the rotation driving mechanism can drive the rotating disk 16 to rotate around its own axis.

[0035] In this embodiment, the rotation driving mechanism includes a top plate 17 , which is connected to the lifting mechanism. A through hole 24 is provided at the center of the top plate 17 , and the turntable 16 is coaxially arranged inside the through hole 24 .

[0036] The outer circumferential surface of the turntable 16 is provided with a plurality of wheel rods 18 along the circumferential direction, and the wheel rods 18 are arranged along the radial direction of the turntable 16. One end of the wheel rod 18 is fixed to the outer circumferential surface of the turntable 16, and the other end is rotatably connected to a pulley 19. The pulley 19 is embedded in a wheel groove arranged on the hole wall of the through hole 24. The vertical and horizontal positioning of the turntable 16 is achieved through the action of the pulley 19 and the wheel groove. At the same time, through the pulley 19, the turntable 16 can achieve free rotation around its own axis. A second rotating driving member is provided on the inner side surface of the trough body 1. In this embodiment, the second rotating driving member adopts a second motor 20, and the second motor 20 is fixed to the inner side surface of the trough body 1 through a second motor seat. The output shaft of the second motor 20 is connected to a gear 22, and the gear 22 is meshed with an outer gear ring 23 arranged on the outer circumferential surface of the turntable 16.

[0037] The second motor 20 drives the gear 22 to rotate, and under the meshing action of the gear 22 and the outer gear ring 23, the rotating disk 16 rotates around its own axis.

[0038] A funnel structure is provided at the top of the feeding tube 3 to facilitate feeding into the feeding tube 3. The feeding tube 3 is provided with a switch valve. Preferably, the switch valve adopts an electrically controlled switch valve, preferably a solenoid valve 25. The solenoid valve 25 is connected to the control system and can receive instructions from the control system to work. The part of the feeding tube 3 below the solenoid valve 25 is used as the part for extending into the test tube.

[0039] The top plate 17 is connected to a lifting mechanism installed on the tank body 1 , and the lifting mechanism can drive the top plate 17 to perform lifting motion, thereby driving the feeding pipe 3 to perform lifting motion.

[0040] In this embodiment, the lifting mechanism includes multiple lifting frames. In this embodiment, two lifting frames are provided. The two lifting frames are respectively located on both sides of the trough body 1. The lifting frames include a lifting rod 26 and a lifting plate 27. The top end of the lifting rod 26 is vertically fixed to the top plate 17, and the bottom end is vertically fixed to the lifting plate 27. A slider 28 is provided on the lifting plate 27. The slider 28 is slidably connected to a vertical guide column 29. The vertical guide column 29 is used to guide the lifting movement of the lifting frame. The vertical guide column 29 is fixed between two support plates 31 provided on the outer side of the trough body 1, and the vertical guide column 29 is fixedly connected to the support plate 31.

[0041] The lifting plate 27 of at least one lifting frame is threadedly connected to the lead screw 30 arranged vertically on the axis. In this embodiment, the lifting plate 27 of the lifting frame located on one side is threadedly connected to the lead screw 30 arranged vertically on the axis. The bottom end of the lead screw 30 is rotatably connected to the support plate 31 below through a bearing, and the top end of the lead screw 30 is rotatably connected to the support plate 31 above through a bearing. The support plate 31 is fixedly connected to the outer side surface of the trough body 1. The lead screw 30 is connected to the third rotating drive member arranged on the support plate 31 below through a transmission mechanism, and the third rotating drive member can drive the lead screw 30 to rotate around its own axis.

[0042] In this embodiment, the third rotating driving member adopts a third motor 33 fixed to the lower support plate 31, and the transmission mechanism adopts a gear transmission mechanism 21. The output shaft of the third motor 33 is connected to the screw 30 through the gear transmission mechanism 21, and can drive the screw 30 to rotate around its own axis.

[0043] When the lead screw 30 rotates around its own axis, it can drive the lifting frame connected thereto to perform lifting motion.

[0044] In this embodiment, the first motor 13, the second motor 20, the third motor 33 and the solenoid valve 25 are all connected to a control system, and their operations are controlled by the control system.

[0045] The working method of the test tube sample adding device of this embodiment is: First, a sample is added to one group of feeding tubes 3, and different test reagents are added to the remaining three groups of feeding tubes 3. In this embodiment, the first test reagent, the second test reagent and the third test reagent are added to the remaining three groups of feeding tubes 3, respectively.

[0046] The second motor 20 works to drive the turntable 16 to rotate, so that the feeding tube 3 with the sample added therein rotates to the position just above the test tube placed on the test tube placement rack.

[0047] The third motor 33 works to drive the top plate 17 to descend, and the feeding tube 3 descends along with the top plate 17 until the bottom end of the feeding tube 3 extends into the corresponding test tube, and the solenoid valve 25 is opened, and the feeding tube 3 adds the sample into the test tube.

[0048] After the sample is added, the third motor 33 works to drive the top plate 17 to rise, and the feeding tube 3 leaves the test tube. Then the second motor 20 works to rotate the feeding tube 3 with the first test reagent added to the top of the test tube.

[0049] The third motor 33 works to drive the top plate 17 to descend, and the feeding tube 3 descends along with the top plate 17 until the bottom end of the feeding tube 3 extends into the corresponding test tube, and the solenoid valve 25 is opened, and the feeding tube 3 with the first test reagent adds the first test reagent into the test tube.

[0050] After the first test reagent is added, the third motor 33 works to drive the top plate 17 to rise, and the feeding tube 3 leaves the test tube.

[0051] Using the same method, add the second test reagent to the test tube and add the third test reagent to the test tube in sequence.

[0052] After the three test reagents are added, the first motor 13 is started, the cam 10 rotates, and the cam 10 and the first spring 15 drive the test tube rack to shake, thereby accelerating the mixing of the sample and the test reagent.

[0053] In the test tube sample adding device of this embodiment, under the coordinated action of the cam 10 and the first spring 15, the test tube placement rack can reciprocate along the guide rod 9, thereby realizing the shaking of the test tube, improving the mixing rate of the test reagent and the sample, and further improving the efficiency of the entire sample inspection work. At the same time, through the rotation of the turntable 16, different test reagents can be added to the test tube in one test, and the operation is more convenient and quick.

[0054] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A test tube sample adding device for clinical examination, characterized in that: The utility model comprises a trough body, in which a test tube rack is arranged, the top of the test tube rack is slidably connected with a guide rod, the guide rod is fixed with the trough body, one side of the test tube rack is in contact with a cam, the cam is connected with a first rotating driving member fixed with the trough body, a sleeve rod parallel with the guide rod is arranged with the other side of the test tube rack, the sleeve rod is inserted into a sleeve fixed with the trough body and slidably connected with the sleeve, a first elastic member is arranged between the sleeve and the test tube rack, a feeding pipe is arranged above the test tube rack, the feeding pipe is provided with a switch valve, the feeding pipe is installed on a feeding pipe bearing mechanism, and the feeding pipe bearing mechanism is connected with a lifting mechanism.

2. A test tube sample adding device for clinical examination as claimed in claim 1, characterized in that: The feeding tube bearing mechanism comprises a turntable and a rotating drive mechanism. A plurality of feeding tubes are arranged circumferentially on the turntable. The turntable is connected to the rotating drive mechanism to realize rotation around its own axis. The rotating drive mechanism is connected to the lifting mechanism.

3. A test tube sample adding device for clinical examination as claimed in claim 2, characterized in that: The rotation driving mechanism includes a plurality of wheel rods arranged along the circumference of the turntable, one end of the wheel rod is fixed to the turntable, and the other end is rotatably connected to a pulley, and the pulley is embedded in a wheel groove arranged on the wall of the central through hole of the top plate. A gear is provided on one side of the turntable, and the gear is connected to a second rotation driving member fixed to the groove body, and the gear is meshed with an external gear ring arranged on the outer peripheral surface of the turntable, and the top plate is connected to the lifting mechanism.

4. A test tube sample adding device for clinical examination as claimed in claim 1, characterized in that: The lifting mechanism includes multiple lifting frames, which are connected to the feeding pipe bearing mechanism, at least one lifting frame is connected to a lead screw arranged vertically to the axis, both ends of the lead screw are rotatably connected to the support plate arranged on the trough body, the lead screw is connected to the third rotating driving member arranged on the support plate through the transmission mechanism, and all the lifting frames are slidably connected to the vertical guide column fixed on the support plate.

5. A test tube sample adding device for clinical examination as claimed in claim 1, characterized in that: The first elastic member adopts a first spring, which is sleeved on the outer circumference of the sleeve rod, one end of the first spring is connected to the end of the sleeve, and the other end is connected to the side of the test tube placement rack.

6. A test tube sample adding device for clinical examination according to claim 1, characterized in that: The switch valve is an electrically controlled switch valve.

7. A test tube sample adding device for clinical examination according to claim 1, characterized in that: The test tube placement rack includes a placement slot, a cover plate is provided at the top open end of the placement slot, the cover plate is slidably connected to the guide rod, the cover plate is provided with a plurality of through holes for the test tubes to pass through, the positions of the through holes correspond to the positions of the feeding tubes, and a support plate for cooperating with the bottom of the test tube is provided in the placement slot.

8. A test tube sample adding device for clinical examination as claimed in claim 7, characterized in that: The support plate passes through a plurality of slide columns, the bottom ends of the slide columns are fixed to the bottom surface of the placement groove, the top ends are provided with a limit plate, and a second elastic member is provided between the support plate and the bottom surface of the placement groove.

9. A test tube sample adding device for clinical examination as claimed in claim 8, characterized in that: The second elastic member adopts a second spring, the top end of the second spring is connected to the bottom surface of the support plate, and the bottom end of the second spring is connected to the bottom surface of the placement groove.

10. A test tube sample adding device for clinical examination according to claim 1, characterized in that: An arc-shaped protrusion is arranged on one side of the test tube placement rack, and the arc-shaped protrusion contacts the cam.

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