Liquid adding diluter for medical examination

Abstract

The invention relates to the technical field of medical instruments, and discloses a medical examination liquid adding diluter which comprises a device body, a sealing cover is fixedly connected to the top of the device body, a liquid inlet pipe is fixedly connected to the side face of the device body, and a fixing disc is rotationally connected to the device body and fixedly connected with an output shaft of a motor. The top of the fixed disc is fixedly connected with a liquid distribution disc, and the liquid distribution disc is fixedly connected with the device main body; the device body comprises a device shell, a driving motor is fixedly connected into the device shell, a driving gear is fixedly connected to a top output shaft of the driving motor, and a planet carrier is connected to the side face of the driving gear in an engaged mode. The gear transmission system arranged in the device realizes accurate proportioning and efficient mixing of a diluent and a mother solution, greatly shortens the dilution time of a single sample, is suitable for a scene in which a large number of samples need to be detected every day, can accelerate the dilution process through continuous automatic operation, and improves the flux and timeliness of the whole detection work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a medical examination liquid adding and diluting device. BACKGROUND

[0002] The medical examination liquid adding and diluting device is mainly used for quantitative dilution of various samples in the medical examination field. By adding diluent and mother liquor in a certain proportion, the sample concentration meets the detection requirements. At the same time, it has functions such as stirring and shaking to ensure uniform mixing. Some devices also integrate auxiliary functions such as filtering and cleaning, which are suitable for scenes such as hospital laboratories and pathology laboratories, and provide samples with appropriate concentration for clinical diagnosis, disease screening, medical research, etc., to ensure the accuracy and reliability of the test results.

[0003] Publication No. CN216747067U discloses a medical examination liquid adding and diluting device, which comprises a box body and a test tube rack. The box body is internally provided with a test tube rack. The test tube rack is provided with a liquid adding pipe on the upper side. The liquid adding pipe is fixedly connected with a hose at the left end of the upper part. The other end of the hose is fixedly connected with a flow valve. The flow valve is fixedly connected with a micro pump through a conduit at the left end. The input pipe of the micro pump is fixedly connected with a diluent storage tank through a conduit. The diluent storage tank is fixed on the left side of the inside of the box body. Through the setting of the liquid adding pipe, the flow valve, the micro pump, the test tube rack, the workbench and the stepping motor, automatic dilution of the sample solution can be realized, manpower can be saved, and automatic switching of the sample test tube can be realized, which facilitates dilution of multiple samples at a time and improves work efficiency.

[0004] In the scene of daily processing of a large number of medical examination samples, such as hospital laboratories and independent medical laboratories, a large number of blood and body fluid samples need to be processed every day. It is necessary to ensure the efficiency of sample dilution and accurately control the dilution ratio to ensure the accuracy and reliability of the test results. The above device has the problems of insufficient mixing uniformity, insufficient applicability and easy introduction of errors due to manual operation. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a medical examination liquid adding and diluting device to solve the problems in the above background.

[0006] The present application provides the following technical scheme: a medical examination liquid adding and diluting device, comprising a device main body, a sealing cover fixedly connected to the top of the device main body, a liquid inlet pipe fixedly connected to the side of the device main body, a fixed disc rotatably connected to the device main body, the fixed disc being fixedly connected with a motor output shaft to shake the diluted solution, a distribution disc fixedly connected to the top of the fixed disc, and the distribution disc being fixedly connected with the device main body.

[0007] The device body includes a device shell, the inside of the device shell is fixedly connected with a driving motor, the top output shaft of the driving motor is fixedly connected with a driving gear, the side of the driving gear is meshedly connected with a planet carrier, the inside of the planet carrier is meshedly connected with a planet wheel, the bottom of the planet wheel is fixedly connected with a fixed rod, the bottom of the fixed rod is fixedly connected with a stirring disc, the inside of the planet wheel is provided with a connecting ring, the connecting ring is fixedly connected with the device shell, the connecting ring is rotatably connected with an adjusting mechanism, the bottom of the connecting ring is fixedly connected with a limiting plate, the inside of the connecting ring is movably connected with a piston cylinder, the bottom of the piston cylinder is fixedly connected with a baffle, by injecting diluent, the diluent drives the baffle to move upward, the baffle drives the piston cylinder to move upward, the mother liquor is extruded into the inside cavity of the device shell, the stirring disc is driven to rotate by the driving motor, the inside of the cavity is stirred and diluted, the accurate proportioning and efficient mixing of the diluent and the mother liquor are realized, and the single sample dilution time is greatly shortened.

[0008] Further, the side of the device shell is fixedly connected with an air outlet valve, the air outlet valve includes an air outlet pipe, the inside of the air outlet pipe is movably connected with a ball, the top of the air outlet pipe is threadedly connected with a screw cap, and the ball is made of silicone rubber.

[0009] Further, the fixed disc is provided with a fixed hole for storing a test tube, the dispensing head is sleeved on the dispensing disc, the top of the dispensing head is fixedly connected with a dispensing pipe, the device shell is fixedly connected with a control valve, and the device shell is fixedly connected with a control valve.

[0010] Further, the adjusting mechanism includes a fixed gear, the bottom of the fixed gear is fixedly connected with an upper connecting disc, the bottom of the upper connecting disc is movably connected with a lower connecting disc, the bottom of the lower connecting disc is fixedly connected with a spring, and the side of the fixed gear is meshedly connected with a movable gear.

[0011] Further, the inside of the lower connecting disc is provided with a movable groove, the movable switch is fixedly connected with a limiting block on the side, the limiting block is arranged at the movable groove, and the movable switch is movably connected with the lower connecting disc.

[0012] Further, three round holes are formed in the piston cylinder, three holes corresponding to the piston cylinder are formed in the movable switch, and the piston cylinder is controlled by the movable switch.

[0013] Further, the stirring disc comprises a connecting rod, a pressure plate is fixedly connected to the side of the connecting rod, a sliding rod is fixedly connected to the bottom of the pressure plate, a limiting disc is fixedly connected to the bottom of the sliding rod, a connecting spring is fixedly connected to the center of the pressure plate, the connecting spring is movably connected with the fixing rod, a fixing plate is fixedly connected to the bottom of the connecting spring, and a stirring fan blade is rotatably connected to the side of the fixing plate.

[0014] Further, the bottom of the connecting rod is rotatably connected with a weight block, a sliding groove is formed in the limiting disc, and the weight block is arranged in the sliding groove and movably connected with the limiting disc.

[0015] The stirring disc cooperates with the weight block, the sliding groove and the connecting spring, when the rotating speed of the driving motor is low, the stirring fan blade is at a high position and has a short extension length, which is suitable for soft stirring of low-viscosity mother liquor and avoids excessive disturbance, when the rotating speed increases, the centrifugal force of the weight block drives the stirring fan blade to move downward and stretch, which penetrates into the inside of the solution and increases the stirring range, and is suitable for strong mixing of high-viscosity mother liquor.

[0016] Advantages: 1. The medical examination liquid adding and diluting device adopts a planetary gear transmission and a piston cylinder linkage structure, realizes orderly mixing of the mother liquor and the diluting liquid in a closed cavity through power transmission of the driving motor, avoids external pollution risk, accurately controls the mother liquor extrusion amount by using air pressure difference, ensures consistency of the dilution ratio each time, and significantly improves the accuracy and reliability of the test sample.

[0017] 2. The medical examination liquid adding and diluting device integrates the functions of oscillation and stirring, and under the double actions of the oscillation of the fixed disc and the rotation of the planetary gear driven stirring disc, the mixed solution can be uniformly processed in all directions and multidimensions, not only effectively solves the mixed dead angle problem existing in the traditional single stirring mode, but also quickly disperses high-viscosity solution, greatly improves the dilution efficiency of samples with different properties, and meets diversified test requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is an external overall structure schematic diagram of the medical examination liquid adding and diluting device proposed in the application; Fig. 2 It is an internal structure sectional view schematic diagram of the device main body of the medical examination liquid adding and diluting device proposed in the application; Fig. 3 It is an internal structure sectional view schematic diagram of the device main body of the medical examination liquid adding and diluting device proposed in the application; Fig. 4 It is a structure schematic diagram of the adjusting mechanism of the medical examination liquid adding and diluting device proposed in the application; Fig. 5The adjustment mechanism internal structure schematic view of a medical examination liquid adding diluter is provided in the application; Fig. 6 The stirring disc structure schematic view of a medical examination liquid adding diluter is provided in the application.

[0019] Wherein: 1, device main body; 101, device shell; 102, driving gear; 103, baffle; 104, limit plate; 105, driving motor; 106, connecting ring; 107, planetary gear; 108, planetary carrier; 109, fixed rod; 110, adjustment mechanism; 1101, fixed gear; 1102, upper connecting disc; 1103, lower connecting disc; 1104, spring; 1105, movable groove; 1106, movable switch; 111, stirring disc; 1111, connecting rod; 1112, stirring fan blade; 1113, weight block; 1114, limit disc; 1115, fixed plate; 1116, sliding rod; 1117, sliding groove; 1118, connecting spring; 1119, pressure plate; 112, movable gear; 113, piston cylinder; 2, liquid inlet pipe; 3, sealing cover; 4, air outlet valve; 401, air outlet pipe; 402, screw cover; 403, ball; 5, liquid outlet pipe; 6, liquid distribution disc; 7, fixed disc; 8, liquid distribution head; 9, fixed hole; 10, control valve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0021] Please refer to Figs. 1-3 A medical examination liquid adding diluter, comprising a device main body 1, the top of the device main body 1 is fixedly connected with a sealing cover 3, the side of the device main body 1 is fixedly connected with a liquid inlet pipe 2, the device main body 1 is rotatably connected with a fixed disc 7, the fixed disc 7 is fixedly connected with a motor output shaft, and the diluted solution is shaken, the top of the fixed disc 7 is fixedly connected with a liquid distribution disc 6, and the liquid distribution disc 6 is fixedly connected with the device main body 1.

[0022] The device body 1 includes a device housing 101, the interior of the device housing 101 is fixedly connected to a drive motor 105, the top output shaft of the drive motor 105 is fixedly connected to a drive gear 102, the side of the drive gear 102 is meshed with a planetary frame 108, the interior of the planetary frame 108 is meshed with a planetary gear 107, the bottom of the planetary gear 107 is fixedly connected to a fixing rod 109, the bottom of the fixing rod 109 is fixedly connected to a stirring plate 111, the inner side of the planetary gear 107 is provided with a connecting ring 106, and the connecting ring 106 is connected to the device outer surface. The shell 101 is fixedly connected, and the adjusting mechanism 110 is rotatably connected to the connecting ring 106. The bottom of the connecting ring 106 is fixedly connected to the limit plate 104, and the interior of the connecting ring 106 is movably connected to the piston cylinder 113. The bottom of the piston cylinder 113 is fixedly connected to the baffle 103. By injecting diluent, the diluent drives the baffle 103 to move upward, and the baffle 103 drives the piston cylinder 113 to move upward, squeezing the mother liquor into the internal cavity of the device shell 101, and the driving motor 105 drives the stirring disk 111 to rotate to stir and dilute the inside of the cavity.

[0023] What needs to be specifically explained in this embodiment is that: the medical test liquid adding and diluting device drives the planetary gear system through the driving motor 102 to rotate the stirring disk, and at the same time uses the diluent injection to push the baffle 103 and the piston cylinder 113 to move, so that the mother liquid is automatically squeezed into the cavity to mix with the diluent; through the automated liquid volume control and planetary stirring structure, the diluent and the mother liquid are accurately proportioned and efficiently mixed, which greatly shortens the dilution time of a single sample, solves the problems of low efficiency of manual liquid addition, uneven stirring, and time-consuming multi-sample processing in traditional manual dilution operations, and is particularly suitable for scenarios where a large number of samples need to be tested every day. The dilution process can be accelerated through continuous automated operations, thereby improving the throughput and timeliness of the overall inspection work, while facilitating disassembly and cleaning.

[0024] The specific working principle is as follows: during use, by injecting diluent into the interior of the device housing 101, the drive motor 105 is started at the same time, the drive motor 105 drives the drive gear 102 to rotate, the drive gear 102 drives the planetary carrier 108 to rotate, the planetary carrier 108 drives the planetary gear 107 to rotate, and the diluent enters the cavity and discharges the internal air from the air outlet valve 4, and then drives the baffle 103 to move upward, the baffle 103 drives the piston cylinder 113 to move upward, and the piston cylinder 113 moves upward to squeeze the internal air of the sealing cover 3, so that the mother liquid contained in the sealing cover 3 is pressurized and flows into the hole inside the piston cylinder 113, and then flows from the piston cylinder 113 into the cavity of the device housing 101 to mix with the diluent.

[0025] See also Figs. 4-5The adjustment mechanism 110 includes a fixed gear 1101, the bottom of the fixed gear 1101 is fixedly connected to an upper connecting plate 1102, the bottom of the upper connecting plate 1102 is movably connected to a lower connecting plate 1103, the bottom of the lower connecting plate 1103 is fixedly connected to a spring 1104, and the side of the fixed gear 1101 is meshed with the movable gear 112.

[0026] A movable groove 1105 is provided inside the lower connecting plate 1103, and a movable switch 1106 is fixedly connected to the piston cylinder 113. A limit block is fixedly connected to the side of the movable switch 1106, and the limit block is provided at the movable groove 1105. The movable switch 1106 is movably connected to the lower connecting plate 1103.

[0027] The piston cylinder 113 is provided with three circular holes, and the movable switch 1106 is provided with three holes corresponding to those on the piston cylinder 113 .

[0028] What needs to be specifically explained in this embodiment is that: when the diluent is injected, the motor rotates forward, and the movable gear 112 rotates under the drive of the fixed rod 109. The movable gear 112 is meshed with the fixed gear 1101, and drives the fixed gear 1101 to rotate during rotation. The upper connecting disk 1102 and the lower connecting disk 1103 at the bottom of the fixed gear 1101 are driven by the fixed gear 1101. The teeth under the upper connecting disk 1102 continuously slide over the inclined surface of the lower connecting disk 1103, so that the lower connecting disk 1103 reciprocates and compresses the bottom during the movement. The spring 1104, and when the diluent is injected, the motor reverses, the movable gear 112 drives the fixed gear 1101 to rotate, and the teeth of the upper connecting disk 1102 at the bottom of the fixed gear 1101 will mesh with the teeth of the lower connecting disk 1103 at the bottom, thereby driving the lower connecting disk 1103 to rotate, and the lower connecting disk 1103 drives the internal movable switch 1106 to rotate, and the hole on the internal piston cylinder 113 is closed by the movable switch 1106 to prevent the liquid level from fluctuating during the stirring process, thereby causing a large error in the absorption of the mother liquid.

[0029] See also Fig. 6 The stirring plate 111 includes a connecting rod 1111, the side of the connecting rod 1111 is fixedly connected to a pressure plate 1119, the bottom of the pressure plate 1119 is fixedly connected to a sliding rod 1116, the bottom of the sliding rod 1116 is fixedly connected to a limiting disk 1114, the center of the pressure plate 1119 is fixedly connected to a connecting spring 1118, the connecting spring 1118 is movably connected to the fixed rod 109, the bottom of the connecting spring 1118 is fixedly connected to a fixed plate 1115, and the side of the fixed plate 1115 is rotatably connected to a stirring fan blade 1112.

[0030] The bottom of the connecting rod 1111 is rotationally connected with a weight block 1113, a sliding groove 1117 is formed in the limiting disc 1114, and the weight block 1113 is arranged in the sliding groove 1117 and movably connected with the limiting disc 1114.

[0031] It needs to be particularly pointed out in the embodiment that: the stirring disc 111 cooperates with the weight block 1113, the sliding groove 1117 and the connecting spring 1118, when the rotating speed of the driving motor 105 is low, the stirring fan blade 1112 is at a high position and has a short extension length, which is suitable for soft stirring of the low-viscosity mother liquor and avoids excessive disturbance; when the rotating speed increases, the centrifugal force of the weight block 1113 drives the stirring fan blade 1112 to move downward and extend, which penetrates into the inside of the solution and increases the stirring range, and is suitable for strong mixing of the high-viscosity mother liquor, solves the problem that the traditional stirring structure is difficult to consider the dilution requirements of mother liquors with different viscosities, and realizes self-adaptive adjustment effect of the stirring fan blade at different rotating speeds, and improves the dilution adaptability and mixing efficiency of the mother liquor with different viscosities of different samples.

[0032] The working principle is that: in the process of rotating the stirring disc 111, when the rotating speed of the stirring disc 111 is high, the weight block 1113 moves in the sliding groove 1117 with a larger amplitude, the weight block 1113 moves outward to drive the connecting rod 1111 and the pressure plate 1119 to move, the pressure plate 1119 drives the sliding rod 1116 to move downward, the fixed plate 1115 moves downward, the fixed plate 1115 drives the stirring fan blade 1112 to move downward, the height of the stirring fan blade 1112 in the cavity is reduced, and the extension length is increased.

[0033] Please refer to Figs. 1-3 , the side surface of the device shell 101 is fixedly connected with an air outlet valve 4, the air outlet valve 4 comprises an air outlet pipe 401, a ball 403 is movably connected in the air outlet pipe 401, a screw cap 402 is threadedly connected to the top of the air outlet pipe 401, and the ball 403 is made of silicone rubber.

[0034] It needs to be particularly pointed out in the embodiment that: in the process of injecting the dilution liquid, the internal dilution liquid drives the ball 403 to move towards the screw cap 402, the internal gas is discharged from the screw cap 402, and when the liquid level reaches the screw cap 402, the screw cap 402 is sealed by the ball 403, so that the effect of exhausting air is realized.

[0035] The fixed disc 7 is provided with a fixed hole 9 for storing a test tube, the dispensing head 8 is sleeved on the dispensing disc 6, the dispensing head 8 is fixedly connected with a dispensing pipe 5 at the top, convenient for installation and disassembly, and the control valve 10 is fixedly connected in the device shell 101.

[0036] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A medical test liquid adding and diluting device, comprising a device body (1), characterized in that: The top of the device body (1) is fixedly connected to a sealing cover (3), the side of the device body (1) is fixedly connected to a liquid inlet pipe (2), the device body (1) is rotatably connected to a fixed disk (7), the fixed disk (7) is fixedly connected to the motor output shaft, and the diluted solution is shaken, the top of the fixed disk (7) is fixedly connected to a liquid separation disk (6), and the liquid separation disk (6) is fixedly connected to the device body (1); The device body (1) comprises a device housing (101), a driving motor (105) is fixedly connected to the interior of the device housing (101), a driving gear (102) is fixedly connected to the top output shaft of the driving motor (105), a planetary frame (108) is meshedly connected to the side of the driving gear (102), a planetary gear (107) is meshedly connected to the interior of the planetary frame (108), a fixing rod (109) is fixedly connected to the bottom of the planetary gear (107), a stirring disc (111) is fixedly connected to the bottom of the fixing rod (109), a connecting ring (106) is provided on the inner side of the planetary gear (107), and the connecting ring (106) is fixedly connected to the inner side of the planetary gear (107). ) is fixedly connected to the device housing (101), the connecting ring (106) is rotatably connected to an adjusting mechanism (110), the bottom of the connecting ring (106) is fixedly connected to a limit plate (104), the interior of the connecting ring (106) is movably connected to a piston cylinder (113), the bottom of the piston cylinder (113) is fixedly connected to a baffle (103), by injecting diluent, the diluent drives the baffle (103) to move upward, the baffle (103) drives the piston cylinder (113) to move upward, and the mother liquid is squeezed into the internal cavity of the device housing (101), and the stirring disk (111) is driven to rotate by the driving motor (105) to stir and dilute the interior of the cavity.

2. A medical test liquid adding and diluting device according to claim 1, characterized in that: An air outlet valve (4) is fixedly connected to the side of the device housing (101), and the air outlet valve (4) includes an air outlet pipe (401). A sphere (403) is movably connected inside the air outlet pipe (401), and a screw cap (402) is threadedly connected to the top of the air outlet pipe (401). The sphere (403) is made of silicone rubber.

3. The medical test liquid adding and diluting device according to claim 1, characterized in that: The fixing plate (7) is provided with a fixing hole (9) for storing test tubes. The separating plate (6) is sleeved with a separating head (8). The top of the separating head (8) is fixedly connected to a separating tube (5) for easy installation and removal. The interior of the device housing (101) is fixedly connected to a control valve (10).

4. The medical test liquid adding and diluting device according to claim 1, characterized in that: The adjustment mechanism (110) comprises a fixed gear (1101), the bottom of the fixed gear (1101) is fixedly connected to an upper connecting disk (1102), the bottom of the upper connecting disk (1102) is movably connected to a lower connecting disk (1103), the bottom of the lower connecting disk (1103) is fixedly connected to a spring (1104), and the side surface of the fixed gear (1101) is meshedly connected to the movable gear (112).

5. The medical test liquid adding and diluting device according to claim 4, characterized in that: A movable groove (1105) is provided inside the lower connecting plate (1103), a movable switch (1106) is fixedly connected to the piston cylinder (113), a limit block is fixedly connected to the side of the movable switch (1106), and the limit block is arranged at the movable groove (1105), and the movable switch (1106) is movably connected to the lower connecting plate (1103).

6. The medical test liquid adding and diluting device according to claim 5, characterized in that: The piston cylinder (113) is provided with three circular holes, and the movable switch (1106) is provided with three holes corresponding to those on the piston cylinder (113).

7. The medical test liquid adding and diluting device according to claim 1, characterized in that: The stirring plate (111) includes a connecting rod (1111), the side of the connecting rod (1111) is fixedly connected to a pressure plate (1119), the bottom of the pressure plate (1119) is fixedly connected to a slide rod (1116), the bottom of the slide rod (1116) is fixedly connected to a limit plate (1114), the center of the pressure plate (1119) is fixedly connected to a connecting spring (1118), the connecting spring (1118) is movably connected to the fixed rod (109), the bottom of the connecting spring (1118) is fixedly connected to a fixed plate (1115), and the side of the fixed plate (1115) is rotatably connected to a stirring blade (1112).

8. The medical test liquid adding and diluting device according to claim 7, characterized in that: The bottom of the connecting rod (1111) is rotatably connected to a load-bearing block (1113), a sliding groove (1117) is provided on the limiting plate (1114), and the load-bearing block (1113) is arranged in the sliding groove (1117) and is movably connected to the limiting plate (1114).

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