Intelligent medical detection device, system and method
By integrating a sample needle action module and a conveyor belt, the intelligent medical testing device solves the problem of complex structure in existing biochemical testing devices, realizing compact and feature-rich automated testing, and is suitable for convenient operation of multiple sample tubes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN UNIV OF CHINESE MEDICINE
- Filing Date
- 2026-03-03
- Publication Date
- 2026-05-15
AI Technical Summary
Existing biochemical detection devices are complex in structure, have many parts, occupy a lot of space, and lack portability.
Design an intelligent medical testing device that uses a sample needle action module, a conveyor belt, and a liquid storage unit, integrating reagent tubes, sample liquid tubes, a colorimetric cell, a washing cell, and a waste liquid cell, and achieves automated operation through a micro-liquid pump and controller.
It has achieved a compact and feature-rich detection device, which simplifies the operation process, facilitates the automated processing of multiple sample tubes, and makes it easy to control the liquid extraction and injection actions.
Smart Images

Figure CN122042949A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to an intelligent medical testing device, system, and method. Background Technology
[0002] Biochemical testing devices, typically referring to biochemical analyzers, are indispensable "analytical masters" in modern medical and life science research. Their core task is to perform rapid and accurate quantitative analysis of various chemical components in bodily fluids such as blood and urine, providing crucial data for disease diagnosis, treatment efficacy evaluation, and health monitoring.
[0003] Biochemical analyzers are automated devices based on photochemical detection principles (such as absorbance and turbidity). They automate all the tedious steps of traditional manual operations, such as sampling, adding reagents, mixing, incubation, detection, and cleaning.
[0004] Existing biochemical detection devices mostly use a rotating disk structure in conjunction with a sampling needle to achieve parameter detection. Each rotating disk has an independent drive mechanism, which is relatively complex, has many parts, and occupies a large space. See the invention patent with publication number CN116106218A, entitled "Biochemical Detector".
[0005] Another solution, such as the invention with publication number CN108717113B, discloses a biochemical analyzer with a relatively complex test tube rack; The structures of the above-mentioned models are all relatively complex and lack portability. Therefore, it is necessary to design a new type of intelligent medical detection device, system and method. Summary of the Invention
[0006] The technical problem to be solved by the present invention is to provide an intelligent medical detection device, system and method, which has a compact structure and rich functions.
[0007] The technical solution of the invention is as follows: An intelligent medical testing device includes a machine base, on which are provided a sample needle action module, multiple reagent tube insertion holes for reagent tubes, a testing module, a sample liquid tube delivery module, a reaction cell, a colorimetric cell, a clear water cell, and a waste liquid cell; the colorimetric cell is located in the testing module; The sample tube conveying module includes a conveyor belt and multiple sample tubes; the conveyor belt is used to convey the sample tubes sequentially and linearly on the machine platform (along the length of the machine platform) under the drive of the conveyor motor, and to convey the sample tubes to be detected to the detection position. The sample needle actuation module is used to draw or inject liquid from each liquid storage unit, and also to transfer liquid between two different liquid storage units; liquid drawing or injection is achieved through a micro liquid pump.
[0008] The liquid storage unit includes sample liquid tubes, reagent tubes, reaction cell, colorimetric cell, clear water tank, reagent tubes, and waste liquid tank; The detection module is used to detect the value of the parameter to be tested from the reaction vessel.
[0009] The sample needle action module includes a sample needle holder, a column, a swing arm, a swing arm rotation and lifting drive mechanism, and a sample needle; The sample needle holder is fixed on the machine platform; the column is installed vertically on the sample needle holder, and the first end of the swing arm is installed horizontally on the column; a vertical sample needle is provided on the lower side of the second end of the swing arm; the swing arm rotation and lifting drive mechanism is used to drive the swing arm and sample needle to rotate and lift.
[0010] At least one reagent tube, a sample liquid tube located at the detection position, a colorimetric cell, a clear water cell, and a waste liquid cell are all equally distributed around the circumference of the column; the distances from the reagent tube, the sample liquid tube located at the detection position, the colorimetric cell, the clear water cell, and the waste liquid cell to the center line of the column are equal to the distances from the sample needle to the center line of the column.
[0011] The machine is square, and the conveyor belt is set along the length of the machine.
[0012] It also includes a controller, and the detection module, conveyor belt and sample needle action module are all controlled by the controller.
[0013] There are 4 reagent tubes, plus other liquid storage units, for a total of 8 points.
[0014] An intelligent medical testing system includes a sample tube loading device, a testing device, and a sample tube retrieval device; The detection device is the aforementioned intelligent medical detection device; The sample tube loading device is used to load sample tubes onto the front end of the conveyor belt of the detection device; The sample tube retrieval device is used to retrieve sample tubes that have completed testing from the end of the conveyor belt.
[0015] It also includes a waste liquid treatment device that promptly discharges and treats the waste liquid in a harmless manner, which is a mature existing technology.
[0016] A medical testing method, using the aforementioned intelligent medical testing system, to test the sample liquid in a sample tube; The steps are as follows: First, multiple sample tubes are loaded onto the front end of the conveyor belt of the detection device using the sample tube loading device. Then, the detection device sequentially tests the samples in the multiple sample tubes and outputs the test results. After the test is completed, the sample tube retrieval device sequentially retrieves the sample tubes that have completed the test from the tail end of the conveyor belt (the retrieved sample tubes can be reused after subsequent cleaning, disinfection and other operations). Beneficial effects
[0017] The intelligent medical testing device, system, and method of the present invention integrates reagent tubes, sample liquid tubes, colorimetric cells, washing cells and waste liquid cells, sampling and dispensing modules, and detection modules, etc., with a compact structure and rich functions.
[0018] The intelligent medical testing device of the present invention uses a conveyor belt to sequentially transport sample tubes, which facilitates automatic operation of multiple sample tubes in sequence. This method has a simple layout, novel concept, and is easy to control the liquid aspiration and injection actions. Attached Figure Description
[0019] Figure 1 This is an overall block diagram of an intelligent medical testing system; Figure 2 This is a schematic diagram of the sample needle drawing reagents. Figure 3 This is a schematic diagram of the sample needle drawing sample liquid at the detection site. Figure 4 A schematic diagram showing the injection of liquid into the colorimetric cell using a sample needle; Figure 5 This is a diagram illustrating the process of cleaning a sample needle (or drawing water). Figure 6 A schematic diagram showing the injection of waste liquid into the waste liquid pool using a sample needle; Figure 7 Schematic diagram of liquid injection into the reaction cell using a sample needle. Figure 8 A schematic diagram of the sampling and sample addition module; Figure 9 This is a schematic diagram of the sampling needle motion module; Labeling explanation: 1-Machine, 2-Conveyor belt, 3-Detection module, 4-Colorimetric cell, 5-Clear water tank, 6-Waste liquid tank, 7-Sample needle holder, 8-Swing arm, 9-Reagent tube, 10-Sample liquid tube, 11-Column, 12-Sample needle, 13-Reaction cell. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: As Figure 1-9 An intelligent medical testing device includes a machine base 1, on which are provided a sample needle action module, multiple reagent tube insertion holes for reagent tubes, a testing module 3, a sample liquid tube transfer module, a reaction cell 13, a colorimetric cell 4, a clear water tank 5, and a waste liquid tank 6; the colorimetric cell is located in the testing module. The sample tube conveying module includes a conveyor belt 2 and multiple sample tubes 10; the conveyor belt is used to convey the sample tubes sequentially and linearly on the machine platform (along the length of the machine platform) under the drive of the conveyor motor, and to convey the sample tubes to be detected to the detection position. The sample needle actuation module is used to draw or inject liquid from each liquid storage unit, and also to transfer liquid between two different liquid storage units; liquid drawing or injection is achieved through a micro liquid pump.
[0021] The liquid storage unit includes sample liquid tubes, reagent tubes, reaction cell, colorimetric cell, clear water tank, reagent tubes, and waste liquid tank; The detection module is used to detect the value of the parameter to be tested from the reaction vessel.
[0022] The sample needle action module includes a sample needle holder 7, a column 11, a swing arm 8, a swing arm rotation and lifting drive mechanism, and a sample needle 12; The sample needle holder is fixed on the machine platform; the column is installed vertically on the sample needle holder, and the first end of the swing arm is installed horizontally on the column; a vertical sample needle is provided on the lower side of the second end of the swing arm; the swing arm rotation and lifting drive mechanism is used to drive the swing arm and sample needle to rotate and lift.
[0023] At least one reagent tube, a sample liquid tube located at the detection position, a colorimetric cell, a clear water cell, and a waste liquid cell are all equally distributed around the circumference of the column; the distances from the reagent tube, the sample liquid tube located at the detection position, the colorimetric cell, the clear water cell, and the waste liquid cell to the center line of the column are equal to the distances from the sample needle to the center line of the column.
[0024] The machine is square, and the conveyor belt is set along the length of the machine.
[0025] It also includes a controller, and the detection module, conveyor belt and sample needle action module are all controlled by the controller.
[0026] There are 4 reagent tubes, plus other liquid storage units, for a total of 8 points.
[0027] An intelligent medical testing system includes a sample tube loading device, a testing device, and a sample tube retrieval device; The detection device is the aforementioned intelligent medical detection device; The sample tube loading device is used to load sample tubes onto the front end of the conveyor belt of the detection device; The sample tube retrieval device is used to retrieve sample tubes that have completed testing from the end of the conveyor belt.
[0028] It also includes a waste liquid treatment device that promptly discharges and treats the waste liquid in a harmless manner, which is a mature existing technology.
[0029] The sample tube loading device and sample tube retrieval device can be based on a robotic arm, which is an existing technology.
[0030] A medical testing method, using the aforementioned intelligent medical testing system, to test the sample liquid in a sample tube; The steps are as follows: First, multiple sample tubes are loaded onto the front end of the conveyor belt of the detection device using the sample tube loading device. Then, the detection device sequentially tests the samples in the multiple sample tubes and outputs the test results. After the test is completed, the sample tube retrieval device sequentially retrieves the sample tubes that have completed the test from the tail end of the conveyor belt (the retrieved sample tubes can be reused after subsequent cleaning, disinfection and other operations).
[0031] The detection module is connected to the colorimetric cell (used to analyze various substances from the colorimetric cell; the specific inspection method is based on existing technology). The sampling and dispensing module includes a sample needle holder 7, a column 11, a swing arm 8, and a sample needle 12. The column is fixed to the sample needle holder. The swing arm is mounted on the column and moves up and down along the column under the action of the lifting drive unit. The sample needle is vertically positioned at the outer end of the swing arm. The swing arm can rotate relative to the column in the horizontal plane under the action of the rotation drive unit. For details, please refer to [reference needed]. Figure 9 .
[0032] The detection module is based on a colorimetric cell and a filter wheel.
[0033] The phototube (photoelectric switch) is used to locate whether the sample tube has reached the detection position. The sample needle control module controls the sample needle to be exactly above each container (liquid storage unit) through precise rotation control, so as to carry out liquid injection and liquid aspiration operations. The colorimetric cell has a filter wheel with eight different filters for detecting multiple parameters, enabling it to perform multiple functions in one machine.
[0034] Working Process Description: The sampling needle draws sample liquid from the sample liquid tube and injects it into the reaction cell. Then, it draws reagents from one or more reagent tubes and injects them into the reaction cell. The needle needs to be cleaned after each step. After the last reagent is drawn and expelled, the needle completes the aspiration and regurgitation mixing in the reaction cell. After the reaction time, the reaction solution is drawn and pumped into the colorimetric cell of the detection module to complete the detection. The colorimetric cell is cleaned after detection. This device can test the content of different elements in a sample. When the reaction solution enters the colorimetric cell, there is a filter wheel with eight different filters. Light passes through different filters and then through different reaction solutions, and is received by the optical sensor. This signal reflects the content of a certain element in the reaction solution. (The colorimetric cell, filters, filter wheel, and specific detection device and process are existing mature technologies; related technologies can be found in CN206594050U, "A Food Safety Detection Module").
[0035] Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention shall be included within the scope of protection of this invention.
Claims
1. An intelligent medical detection device, characterized in that, The system includes a machine (1), which is equipped with a sample needle action module, multiple reagent tube insertion holes, a detection module (3), a sample liquid tube conveying module, a reaction cell (13), a colorimetric cell (4), a clear water tank (5), and a waste liquid tank (6). The colorimetric cell is located in the detection module. The sample liquid tube conveying module includes a conveyor belt (2) and multiple sample liquid tubes (10). The conveyor belt is used to convey the sample liquid tubes sequentially and linearly on the machine (along the length of the machine) under the drive of the conveyor motor, and to convey the sample liquid tubes with detection to the detection position. The sample needle actuation module is used to draw or inject liquid from each liquid storage unit, and also to transfer liquid between two different liquid storage units; the liquid storage unit includes a sample liquid tube, a reagent tube, a colorimetric cell, a reaction cell, a clear water tank, a reagent tube, and a waste liquid tank; the detection module is used to detect the value of the parameter to be tested from the reaction cup.
2. The intelligent medical detection device according to claim 1, characterized in that, The sample needle action module includes a sample needle holder (7), a column (11), a swing arm (8), a swing arm rotation and lifting drive mechanism, and a sample needle (12). The sample needle holder is fixed on the machine base. The column is installed vertically on the sample needle holder, and the first end of the swing arm is installed horizontally on the column. A vertical sample needle is provided on the lower side of the second end of the swing arm. The swing arm rotation and lifting drive mechanism is used to drive the swing arm and the sample needle to rotate and lift.
3. The intelligent medical detection device according to claim 2, characterized in that, At least one reagent tube, a sample liquid tube located at the detection position, a reaction cell, a colorimetric cell, a clear water cell, and a waste liquid cell are all equally distributed around the circumference of the column; the distances from the reagent tube, the sample liquid tube located at the detection position, the reaction cell, the colorimetric cell, the clear water cell, and the waste liquid cell to the center line of the column are equal to the distance from the sample needle to the center line of the column.
4. The intelligent medical detection device according to claim 1, characterized in that, The machine is square, and the conveyor belt is set along the length of the machine.
5. The intelligent medical detection device according to claim 1, characterized in that, It also includes a controller, and the detection module, conveyor belt and sample needle action module are all controlled by the controller.
6. The intelligent medical detection device according to any one of claims 1-5, characterized in that, There are 3 reagent tubes.
7. An intelligent medical detection system, characterized in that, The device includes a sample tube loading device, a detection device, and a sample tube retrieval device; the detection device is the intelligent medical detection device according to any one of claims 1-6; the sample tube loading device is used to load the sample tubes onto the front end of the conveyor belt of the detection device; the sample tube retrieval device is used to retrieve the sample tubes that have completed the detection from the rear end of the conveyor belt.
8. A medical testing method, characterized in that, The intelligent medical testing system described in claim 5 is used to test the sample liquid in the sample tubes. The steps are as follows: first, multiple sample tubes are loaded to the front end of the conveyor belt of the testing device by the sample tube loading device, and then the testing device tests the samples in the multiple sample tubes in sequence and outputs the test results. After the test is completed, the sample tube retrieval device retrieves the sample tubes that have completed the test from the tail end of the conveyor belt in sequence.