CN111013831A

CN111013831A - Centrifugal device for medical blood detection

Info

Publication number: CN111013831A
Application number: CN201811179736.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2020-04-17

Abstract

The invention relates to the technical field of medical instruments, in particular to a centrifugal device for medical blood detection, which comprises a shell, wherein a centrifugal chamber and a test chamber are arranged in the shell, a centrifugal motor is arranged at the bottom of the centrifugal chamber and connected with a centrifugal disc, a centrifugal reaction cavity is formed in the centrifugal disc, a sealing film is arranged at the upper part of the centrifugal reaction cavity, a plurality of fixing holes are formed in the centrifugal disc, reaction test tubes are placed in the fixing holes, fixing devices are arranged between the fixing holes and the reaction test tubes, a sampling device is arranged above the centrifugal disc, a lifting device is arranged below the centrifugal disc, a partition plate is arranged between the centrifugal chamber and the test chamber, test tube through holes are formed in the partition plate, the test tube through holes and the lifting device are positioned on the same vertical line, a sensor is fixedly connected to the inner wall of the centrifugal chamber, an optical detection device is fixedly connected to the inner wall of the, The sensor and the optical detection device are both connected with the control system. The invention ensures the accuracy of the detection result.

Description

Centrifugal device for medical blood detection

Technical Field

The invention relates to the technical field of medical instruments, in particular to a centrifugal device for medical blood detection.

Background

Clinical blood tests can be divided into general blood tests, laboratory tests for hemolytic anemia, bone marrow cytology tests, blood grouping and cross matching tests, and can detect the hematological characteristics of common blood diseases.

Centrifugal reagent dish detection device is very common in medical detection field, and it mainly adopts centrifugal rotatory mode conveniently to detect each item biochemical index of human blood, for example separation, dilution and operation steps such as application of sample of serum in the whole blood. The centrifugal reagent dish detection device of prior art is at the during operation, and its separation and application of sample detect and accomplish under same environmental condition, and the reagent in each reaction test tube may pollute each other, causes the result inaccurate, and in addition, the temperature and the reaction condition of various reaction requirements may not be the same, and the centrifugal reagent dish of prior art can't satisfy multiple project and detect the requirement.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a centrifugal device for medical blood detection.

In order to solve the technical problems, the invention provides the following technical scheme:

a centrifugal device for medical blood detection comprises a shell, wherein a centrifugal chamber and a test chamber are arranged in the shell.

The centrifugal reaction chamber is provided with a sealing film on the upper part, the centrifugal disc is also provided with a plurality of fixing holes, reaction test tubes are placed in the fixing holes, and a fixing device is arranged between the fixing holes and the reaction test tubes. A sampling device is arranged above the centrifugal disc. The centrifugal disc is equipped with the lifting device below, and the lifting device is including lifting the cylinder, and the platform is lifted in the connection of the upper portion of lifting the cylinder, and the upper surface of lifting the platform is equipped with convex recess, and convex recess is the shape of the tube bottom for adaptation reaction test tube. Be equipped with the baffle between centrifugal chamber and the laboratory, seted up the test tube clearing hole on the baffle, test tube clearing hole and lift device on same vertical line, the reaction test tube can be got into the detection room by the test tube clearing hole. The sensor is fixedly connected to the inner wall of the centrifugal chamber, the sensor is arranged on one side of the centrifugal disc, position marks are arranged on the outer side face of the centrifugal disc, and the sensor is used for detecting the rotation angle of the centrifugal disc, so that the positions of a centrifugal reaction cavity and a reaction test tube on the centrifugal disc are monitored. The inner wall of the inspection chamber is fixedly connected with an optical detection device which is used for completing each detection item of blood. The centrifugal motor, the lifting cylinder, the sensor and the optical detection device are all connected with a control system, and the control system controls the actions of all the devices.

The upper portion of inspection chamber is equipped with the application of sample device, and the application of sample device is used for adding reagent to the reaction test tube, and the application of sample device can manual application of sample, also can automatic application of sample.

The automatic sample adding device comprises a plurality of sample adding droppers, the sample adding droppers are installed on a power conveying belt, the power conveying belt is arranged to be annular, the power conveying belt is connected with a power device, and the power device is connected with a control system.

The power device comprises a power conveying wheel, the power conveying wheel is connected with a power motor, and the power motor is connected with the control system.

The sampling device is connected with the sampling cylinder, the sampling cylinder is connected with the control system, the sampling device comprises a sampling suction pipe, and the sampling suction pipe is controlled by the sampling cylinder to move up and down.

The fixing device is a conical rubber sleeve, the rubber sleeve is fixedly connected to the inner wall of the fixing hole, and the rubber sleeve fixes the position of the reaction test tube through friction force.

The reaction test tube includes socle and lumen, and the socle increases, improves the liquid level of lumen internal reagent, is convenient for the reaction test tube stretch into and detect behind the laboratory.

The working process of the invention is as follows:

the invention is started, blood samples are injected into a centrifugal reaction cavity, sealing membranes are covered, clean reaction test tubes are placed in each fixed hole, then a centrifugal motor is started, the centrifugal motor rotates according to a certain speed and time, after centrifugation is finished, a sensor detects the position of the centrifugal reaction cavity, a control system rotates the centrifugal reaction cavity to the lower part of a sampling device by utilizing the rotation of the centrifugal motor, the sampling device punctures the sealing membranes to absorb a certain amount of blood samples, a centrifugal disc rotates to rotate one of the reaction test tubes to the lower part of the sampling device, the sampling device feeds the absorbed blood sample into the reaction test tube, the centrifugal disc continues to rotate, the reaction test tube stops when rotating to the lower part of a test tube through hole, a lifting cylinder lifts the reaction test tube up through a lifting platform, the reaction test tube ascends into a detection chamber, a sample adding device in the detection chamber moves a reagent sample adding dropper corresponding to a detection item to the upper part of the reaction test tube, then reagent is added into the reaction test tube, and finally the final detection result is obtained by detecting through an optical detection device and is fed back to a control system, the control system presents the result on a front panel, then the lifting cylinder retracts, the reaction test tube is retracted by utilizing gravity, a sampling device adds blood samples into other reaction test tubes, and the other reaction test tubes sequentially enter a detection room for detection.

The invention has the following beneficial effects:

the invention divides blood separation and test into two chambers, prevents each reagent from being polluted, and ensures accurate test result by independently and sequentially carrying out each test item.

In addition, each action is automatically carried out, the automation degree is high, and the operation is convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention (the lift device lifts the reaction tube to the test chamber);

FIG. 3 is a top view of a centrifugal disk;

FIG. 4 is a bottom view of the sample addition device.

In the figure: 1. a housing; 2. a sampling cylinder; 3. a sampling straw; 4. a centrifugal reaction chamber; 5. a centrifugal pan; 6. a centrifugal motor; 7. a partition plate; 8. a power transmission belt; 9. a power motor; 10. a sample adding dropper; 11. a control system; 12. an optical detection device; 13. a rubber sleeve; 14. a sensor; 15. a reaction tube; 151. a tube bottom; 152. a lumen; 16. a lifting table; 17. a lifting cylinder; 18. a power transmission wheel; 19. the test tube passes through the aperture.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b):

as shown in fig. 1 to 4, a centrifugal device for medical blood test includes a housing 1, and the housing 1 includes a centrifugal chamber and a test chamber.

The centrifugal chamber bottom is equipped with centrifugal motor 6, and centrifugal motor 6 connects centrifugal dish 5, has seted up a centrifugal reaction chamber 4 on the

centrifugal dish

5, and 4 upper portions in centrifugal reaction chamber are equipped with the sealing film, have still seted up a plurality of fixed orificess on the centrifugal dish 5, place reaction tube 15 in the fixed orificess, are equipped with fixing device between fixed orifices and the reaction tube 15, and fixing device is conical rubber sleeve 13.

The centrifugal disc 5 top is equipped with sampling device, and sampling device connects sample cylinder 2, and sample cylinder 2 connection control system 11, sampling device include sample straw 3.

The centrifugal disc 5 is provided with a lifting device below, the lifting device comprises a lifting cylinder 17, the upper part of the lifting cylinder 17 is connected with a lifting table 16, the upper surface of the lifting table 16 is provided with an arc-shaped groove, and the arc-shaped groove is used for adapting to the shape of the bottom of the reaction test tube. Be equipped with baffle 7 between centrifugal chamber and the laboratory, seted up test tube clearing hole 19 on the baffle 7, test tube clearing hole 19 with lift the device on same vertical line, reaction tube 15 can be got into the detection room by test tube clearing hole 19.

The inner wall of the centrifugal chamber is fixedly connected with a sensor 14, the sensor 14 is arranged on one side of the centrifugal disc 5, and the outer side surface of the centrifugal disc 5 is provided with a position mark. An optical detection device 12 is fixedly connected to the inner wall of the test chamber, and the optical detection device 12 is used for completing each detection item of blood. The centrifugal motor 6, the lifting cylinder 18, the sensor 14 and the optical detection device 12 are all connected with the control system 11, the control system 11 controls the actions of all the devices, and the front end of the control system 11 is provided with a display screen.

The upper portion of the test chamber is provided with a sample adding device, the sample adding device is used for adding reagents into the reaction test tube 15, and the sample adding device 15 can add samples manually or automatically. The automatic sample adding device comprises a plurality of sample adding droppers 10, the sample adding droppers 10 are installed on a power conveying belt 8, the power conveying belt 8 is arranged to be annular, the power conveying belt 8 is connected with a power device, the power device comprises a power conveying wheel 18, the power conveying wheel 18 is connected with a power motor 9, and the power motor 9 is connected with a control system 11.

The reaction tube 15 comprises a tube bottom 151 and a tube cavity 152, wherein the tube bottom 151 is heightened, and the liquid level of the reagent in the tube cavity 152 is improved.

The specific working process of the invention is as follows:

starting a control system 11, injecting blood samples into a centrifugal reaction cavity 4, covering a sealing film, putting a clean reaction test tube 15 into each fixed hole, then starting a centrifugal motor 6, rotating the centrifugal motor 6 at a certain speed and time, after centrifugation is finished, detecting the position of the centrifugal reaction cavity 4 by a sensor 14, rotating the centrifugal reaction cavity 4 to the lower part of a sampling device by the control system 11 by using the rotation of the centrifugal motor 6, penetrating the sealing film by a sampling suction tube 3 to suck a certain amount of blood samples, rotating a centrifugal disc 5, rotating one reaction test tube 15 to the lower part of the sampling device, sending the sucked blood samples into the reaction test tube 15 by the sampling suction tube 3, continuing to rotate the centrifugal disc 5, stopping when the reaction test tube 15 rotates to the lower part of a test tube through hole 19, lifting the reaction test tube 15 is lifted by a lifting cylinder 17 through a lifting platform 16, and the reaction test tube 15 ascends into a detection chamber, the application of sample device in the detection room moves reagent application of sample burette 10 that this detected item corresponds to reaction test tube 15 upper portion, then add reagent in reaction test tube 15, detect through optical detection device 12 at last, obtain final testing result, feed back to control system 11, control system 11 presents the result on the front panel, then lift cylinder 17 and retract, this reaction test tube 15 utilizes gravity to withdraw, sampling device adds the blood sample to other reaction test tubes 15 again, other reaction test tubes get into the laboratory in proper order and examine.

Claims

1. A centrifugal device for medical blood detection is characterized by comprising a shell, wherein the shell comprises a centrifugal chamber and a test chamber, a centrifugal motor is arranged at the bottom of the centrifugal chamber and connected with a centrifugal disc, a centrifugal reaction chamber is formed in the centrifugal disc, a sealing film is arranged at the upper part of the centrifugal reaction chamber, a plurality of fixing holes are further formed in the centrifugal disc, reaction test tubes are placed in the fixing holes, a fixing device is arranged between the fixing holes and the reaction test tubes, a sampling device is arranged above the centrifugal disc, a lifting device is arranged below the centrifugal disc and comprises a lifting cylinder, the upper part of the lifting cylinder is connected with a lifting table, the upper surface of the lifting table is provided with an arc-shaped groove, a partition plate is arranged between the centrifugal chamber and the test chamber, test tube through holes are formed in the partition plate, the test tubes and the lifting device are on the same vertical line, a sensor is fixedly connected to the inner wall of the centrifugal chamber and arranged on one side, and an optical detection device is fixedly connected to the inner wall of the inspection chamber, and the centrifugal motor, the lifting cylinder, the sensor and the optical detection device are all connected with a control system.

2. The centrifuge of claim 1, wherein the top of the testing chamber is provided with a sample application device, the sample application device comprises a plurality of sample application droppers, the sample application droppers are mounted on a power conveyer belt, the power conveyer belt is arranged in a ring shape, the power conveyer belt is connected with the power device, and the power device is connected with the control system.

3. The centrifuge apparatus for medical blood test according to claim 2, wherein the power device comprises a power transmission wheel, the power transmission wheel is connected with a power motor, and the power motor is connected with a control system.

4. The centrifugal device for medical blood test as claimed in claim 1, 2 or 3, wherein the sampling device is connected with a sampling cylinder, the sampling cylinder is connected with a control system, and the sampling device comprises a sampling suction tube.

5. The centrifugal device for medical blood test as claimed in claim 1, 2 or 3, wherein the fixing means is a tapered rubber sleeve fixedly connected to the inner wall of the fixing hole.

6. The centrifuge apparatus for medical blood test according to claim 1, 2 or 3, wherein the reaction cuvette includes a bottom and a lumen.