A medical centrifuge detection device

Abstract

A medical centrifuge detection device, which is structurally composed of four units: a casing, a speed detection unit, a temperature detection unit and a controller unit; the speed detection unit, the temperature detection unit and the controller unit are directly installed inside the casing; the speed detection unit, the temperature detection unit and the controller unit have electrical connections; the casing is a test tube-shaped casing made of black polyoxymethylene material, and the size is consistent with the centrifuge test tube; the speed detection unit is directly installed at the upper end of the casing; the temperature detection unit is installed at the same side as the speed detection unit; the controller unit is installed at the lower end of the casing. The present invention can measure the speed and temperature of the medical centrifuge at the same time without opening the upper cover of the medical centrifuge. The present invention is compact and can be directly placed in the medical centrifuge to complete the detection during its normal operation, without deliberate detection, and is easy to carry.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment detection, in particular to a medical centrifuge detection device. Background Art

[0002] In medical examinations, centrifuges are often used as instruments to separate serum, plasma, precipitate proteins or perform urine sediment examinations. Centrifuges can be used to quickly precipitate suspended particles in a mixed solution, thereby separating the components of various substances with different specific gravities.

[0003] Medical centrifuges use the high-speed rotation of the centrifuge rotor to generate a strong centrifugal force, forcing the particles in the liquid sample to overcome diffusion, accelerate the sedimentation rate, and separate substances with different sedimentation coefficients and buoyancy densities in the sample. They are mainly divided into: low-speed centrifuges, high-speed (refrigerated) centrifuges and ultraspeed (refrigerated) centrifuges.

[0004] The accuracy and stability of the speed of the medical centrifuge ensure the centrifugal effect of the sample. The medical centrifuge with temperature control needs to ensure the activity or test state of the sample during centrifugation. The sample needs to reach the set working temperature quickly and accurately to ensure the correctness of the sample inspection.

[0005] Traditionally, medical centrifuges are tested using photoelectric tachometers that measure speed through an observation hole on the centrifuge cover. However, many high-speed / ultra-speed centrifuges do not have observation holes. Especially when high-speed centrifuges are working, if the centrifuge cover needs to be opened forcibly, it is easy to injure the testers and equipment, posing a huge safety problem. At the same time, there is no suitable equipment for measuring refrigerated centrifuges with temperature control.

[0006] The performance of medical centrifuges directly affects the development of cutting-edge technologies such as biomedicine. Due to the lack of relevant standards / specifications, medical centrifuges have not yet established a set of quality management and technical testing methods. The completion of the establishment of this detection device will be an effective guarantee for the standardization and unification of the calibration methods and technical indicators of medical centrifuges, ensuring the safety, stability and effectiveness of their use. At the same time, it also ensures the effectiveness of medical centrifuges and user safety, providing accurate reference data for clinical workers, enabling inspection work to be carried out better, and reducing the occurrence of various misdiagnosis accidents due to equipment reasons.

[0007] Therefore, a special medical centrifuge detection device is developed, which can measure the rotation speed and temperature of the centrifuge without opening the upper cover when the centrifuge is in normal working condition, providing reliable technical support for the quality inspection of medical centrifuges. Summary of the invention

[0008] The present invention aims at the deficiencies in the prior art and provides a medical centrifuge detection device, which can simultaneously measure the rotation speed and temperature of the medical centrifuge without opening the upper cover of the medical centrifuge. The present invention is small and flexible, can be directly placed in the medical centrifuge, and completes the detection during the normal operation of the medical centrifuge, without the need for deliberate detection, and is easy to carry.

[0009] A medical centrifuge detection device, characterized in that: the structure is composed of four units: a casing, a speed detection unit, a temperature detection unit and a controller unit; wherein the speed detection unit, the temperature detection unit and the controller unit are directly installed inside the casing; the speed detection unit, the temperature detection unit and the controller unit are electrically connected; the casing is a test tube-shaped shell made of black polyoxymethylene material, and the size is consistent with the medical centrifuge test tube; the speed detection unit is directly installed at the upper end of the casing; the temperature detection unit is installed on the same side as the speed detection unit; the controller unit includes a lithium battery power supply conversion unit, a wireless WIFI data transmission unit and a microprocessor control unit, which are installed at the lower end of the casing.

[0010] A medical centrifuge detection device, characterized in that: the circuit is composed of five units: a speed detection unit, a temperature detection unit, a lithium battery power conversion unit, a wireless WIFI data transmission unit and a microprocessor control unit; the microprocessor control unit and the speed detection unit, the temperature detection unit, the lithium battery power conversion unit, and the wireless WIFI data transmission unit are electrically connected; the microprocessor control unit mainly includes a processor STM32F103C8T6 for controlling the operation of the entire system; the speed detection unit mainly includes a reflective photoelectric sensor module of model RPR220, which is amplified by an operational amplifier OPA333 and then connected to the microprocessor The control unit input end is electrically connected; the temperature detection unit mainly includes a temperature sensor module with a model of PT100 and a metal protective shell, which is electrically connected to the input end of the microprocessor control unit after signal amplification through the operational amplifier OPA333; the lithium battery power conversion unit mainly includes a lithium battery charging circuit composed of a lithium battery charger TP4056, and a power conversion circuit composed of a power conversion chip SP6203 to supply power to the speed detection unit, the temperature detection unit, the wireless WIFI data transmission unit and the microprocessor control unit; the wireless WIFI data transmission unit mainly includes a WIFI module WIFI232 to complete the wireless upload of detection data.

[0011] A medical centrifuge detection device, wherein the casing is provided with an upper cover, a shell and a lower cover; wherein the upper cover is provided with a rotation speed detection probe mounting hole, a charging positive electrode and a charging negative electrode. The invention is a wireless device, and is charged through two charging ports, namely a charging positive electrode and a charging negative electrode, provided in the casing; the lower cover is provided with a working indicator light and a power button; the shell is provided with a temperature detection probe mounting hole on one side close to the upper cover, and the upper cover and the lower cover are mechanically connected to the shell through threads.

[0012] A medical centrifuge detection device, wherein the reflective photoelectric sensor module of model RPR220 is provided with a speed detection probe; directly above the speed detection probe, an induction strip is pasted on the inner wall of a cover of a medical centrifuge to be detected; the induction strip is a reflective sticker with a length and width of 10mm*10mm; the temperature sensor module of model PT100 with a metal protective shell is provided with a temperature detection probe; the speed detection probe mounting hole and the temperature detection probe mounting hole are used to install the speed detection probe and the temperature detection probe respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Figure 1 It is a principle block diagram of the present invention;

[0015] Figure 2 It is a schematic diagram of the structure of the present invention.

[0016] Figure 1 In: 1. Casing; 2. Speed ​​detection unit; 3. Temperature detection unit; 4. Controller unit; 5. Lithium battery power conversion unit; 6. Wireless WIFI data transmission unit; 7. Microprocessor control unit.

[0017] Figure 2 Middle: 8, speed detection probe installation hole; 9, charging positive pole; 10, charging negative pole; 11, working indicator light; 12, power button; 13, temperature detection probe installation hole; 14 upper cover; 15, shell; 16 lower cover. DETAILED DESCRIPTION

[0018] like Figure 1The invention discloses a medical centrifuge detection device, characterized in that the device is structurally composed of four units: a housing (1), a speed detection unit (2), a temperature detection unit (3) and a controller unit (4); wherein the speed detection unit (2), the temperature detection unit (3) and the controller unit (4) are directly mounted inside the housing (1); the speed detection unit (2), the temperature detection unit (3) and the controller unit (4) are electrically connected; the housing (1) is a test tube-shaped housing made of black polyoxymethylene material, and its size is consistent with that of a centrifuge test tube; the speed detection unit (2) is directly mounted at the upper end of the housing (1); the temperature detection unit (3) is mounted at the middle upper end of the housing (1), on the same side as the speed detection unit (2); the controller unit (4) comprises a lithium battery power supply conversion unit (5), a wireless WIFI data transmission unit (6) and a microprocessor control unit (7), and is mounted at the lower end of the housing (1).

[0019] like Figure 1 As shown: A medical centrifuge detection device, characterized in that: the circuit is composed of five units: a speed detection unit (2), a temperature detection unit (3), a lithium battery power conversion unit (5), a wireless WIFI data transmission unit (6) and a microprocessor control unit (7); the microprocessor control unit (7) and the speed detection unit (2), the temperature detection unit (3), the lithium battery power conversion unit (5), and the wireless WIFI data transmission unit (6) are electrically connected; the microprocessor control unit (7) mainly includes a processor STM32F103C8T6 for controlling the operation of the entire system; the speed detection unit (2) mainly includes a reflective photoelectric sensor module of model RPR220, and a signal is amplified by an operational amplifier OPA333 The temperature detection unit (3) mainly comprises a temperature sensor module with a metal protective shell of model PT100, which is electrically connected to the input end of the microprocessor control unit (7) after signal amplification through an operational amplifier OPA333; the lithium battery power conversion unit (5) mainly comprises a lithium battery charging circuit composed of a lithium battery charger TP4056, and a power conversion circuit composed of a power conversion chip SP6203 to supply power to the speed detection unit (2), the temperature detection unit (3), the wireless WIFI data transmission unit (6) and the microprocessor control unit (7); the wireless WIFI data transmission unit (6) mainly comprises a WIFI module WIFI232 to complete the wireless upload of detection data.

[0020] like Figure 2As shown: a medical centrifuge detection device, before use, a sensing strip with a length and width of 10mm*10mm is attached to the inner wall of the cover of the centrifuge to be detected, just above the speed detection probe provided in the speed detection unit (2); when in use, press the power button (12), the working indicator light (11) is on, and the present invention directly replaces the centrifuge test tube and is placed in the medical centrifuge to be detected. The so-called speed measurement is the process of the speed detection probe provided in the photoelectric sensor module of the speed detection unit (2) sensing the speed of the sensing strip. The speed detection probe receives a sensing signal for each rotation, and the speed can be calculated by the sensing interval time (the speed measurement can also record the number of times the photoelectric sensor senses within a period of time).

[0021] like Figure 2 As shown: a medical centrifuge detection device, when in use, press the power button (12), the working indicator light (11) lights up, and the present invention directly replaces the centrifuge test tube and is placed in the medical centrifuge to be detected. The so-called temperature detection is the measurement process of the temperature detection probe provided by the temperature sensor module with a model of PT100 and a metal protective shell of the temperature detection unit (3). The temperature detection probe of the temperature sensor module with a model of PT100 and a metal protective shell is directly embedded in a side surface of the upper end of the casing (1).

[0022] like Figure 2 As shown: a medical centrifuge detection device, the casing (1) is provided with an upper cover (14), a shell (15) and a lower cover (16); wherein the upper cover (14) is provided with a rotation speed detection probe mounting hole (8), a charging positive electrode (9) and a charging negative electrode (10); the invention is a wireless device, and is charged through two charging ports, the charging positive electrode (9) and the charging negative electrode (10) provided on the upper cover (14); the lower cover (16) is provided with a working indicator light (11) and a power button (12); the shell (15) is provided with a temperature detection probe mounting hole (13) on one side close to the upper cover (14), and the upper cover (14) and the lower cover (16) are mechanically connected to the shell (15) through threads.

Claims

1. A medical centrifuge detection device, characterized in that: Structurally, it consists of four units: housing, speed detection unit, temperature detection unit and controller unit; The housing is a test tube-shaped housing made of black polyoxymethylene material, and its size is consistent with that of a medical centrifuge test tube. When conducting a medical centrifuge test, it is directly placed in the medical centrifuge to be tested instead of the centrifuge test tube. The speed detection unit is used to measure the speed data of the medical centrifuge to be detected; The temperature detection unit is used to measure the temperature data of the medical centrifuge to be detected; The controller unit is used to control the operation of the entire device, collect data signals from the rotation speed detection unit and the temperature detection unit, and upload the detection data through wireless data transmission; The rotation speed detection unit, the temperature detection unit and the controller unit are directly installed inside the casing.

2. A medical centrifuge detection device as described in claim 1, wherein the speed detection unit is directly mounted at the upper end of the casing; the temperature detection unit is mounted at the same side as the speed detection unit; the controller unit includes a lithium battery power conversion unit, a wireless WIFI data transmission unit and a microprocessor control unit, which are mounted at the lower end of the casing.

3. A medical centrifuge detection device as claimed in claim 2, characterized in that: the microprocessor control unit and the speed detection unit, temperature detection unit, lithium battery power conversion unit, and wireless WIFI data transmission unit are electrically connected; the microprocessor control unit mainly includes a processor STM32F103C8T6 for controlling the operation of the entire system; the speed detection unit mainly includes a reflective photoelectric sensor module of model RPR220, which is electrically connected to the input end of the microprocessor control unit after signal amplification through the operational amplifier OPA333; the temperature detection unit mainly includes a temperature sensor module with a metal protective shell of model PT100, which is electrically connected to the input end of the microprocessor control unit after signal amplification through the operational amplifier OPA333; the lithium battery power conversion unit mainly includes a lithium battery charging circuit composed of a lithium battery charger TP4056, and a power conversion circuit composed of a power conversion chip SP6203 to power the speed detection unit, the temperature detection unit, the wireless WIFI data transmission unit and the microprocessor control unit; the wireless WIFI data transmission unit mainly includes a WIFI module WIFI232 to complete the wireless upload of detection data.

4. A medical centrifuge detection device as claimed in claim 1, wherein the housing is provided with an upper cover, a shell and a lower cover; wherein: The upper cover is provided with a speed detection probe mounting hole, a charging positive electrode, and a charging negative electrode. The device is a wireless device and is charged through two charging ports, the charging positive electrode and the charging negative electrode, provided on the casing; the lower cover is provided with a working indicator light and a power button; the shell is provided with a temperature detection probe mounting hole on one side close to the upper cover, and the upper cover and the lower cover are mechanically connected to the shell through threads.

5. A medical centrifuge detection device as described in claim 3, wherein the main feature is that the reflective photoelectric sensor module of model RPR220 is provided with a rotation speed detection probe.

6. A medical centrifuge detection device as described in claim 5, wherein the main feature is that a sensing strip is attached to the inner wall of the cover of the medical centrifuge to be detected just above the speed detection probe.

7. A medical centrifuge detection device as described in claim 6, wherein the main feature is that the sensor strip is a reflective sticker strip with a length and width of 10mm*10mm.

8. A medical centrifuge detection device as described in claim 3, wherein the main feature is that the temperature sensor module with a model of PT100 and a metal protective shell is provided with a temperature detection probe.

9. A medical centrifuge detection device as described in claim 4, wherein the rotation speed detection probe mounting hole and the temperature detection probe mounting hole are used to mount a rotation speed detection probe and a temperature detection probe, respectively.

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