CN113208656A

CN113208656A - Artificial pharynx posterior wall body liquid sampling device

Info

Publication number: CN113208656A
Application number: CN202010957838.5A
Authority: CN
Inventors: 汪汉柏; 李实�; 韩义
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-08-06

Abstract

The invention discloses an artificial pharynx posterior wall body fluid sampling device, which comprises a sampling device and a mouth gag, wherein the sampling device is used for extending to a sampling point to perform sampling, and the mouth gag is used for pressing the tongue of a person to be sampled so that a cotton swab is clamped by the sampling device to reach the sampling point; the sampling device comprises a machine body and a cotton swab loading and unloading device arranged at the front end of the machine body; and a control device for controlling the sampling, the control device comprising: the device comprises an inertial measurement unit arranged on the machine body, a central processing unit, a storage unit used for storing information, an image acquisition device arranged at the end part of the machine body and used for acquiring images of the pharyngeal backwall of the detected person, and a display device for displaying the images. The artificial pharynx posterior wall body liquid sampling device has the advantages of being simple in structure and convenient to operate, misoperation and missing detection can be effectively reduced, and detection accuracy is improved.

Description

Artificial pharynx posterior wall body liquid sampling device

Technical Field

The invention relates to the technical field of medical instruments, in particular to an artificial pharynx posterior wall body liquid sampling device.

Background

The new coronavirus has spread to more than two hundred countries around the world, and the detection of nucleic acid in a large range is an important and effective means for realizing the purposes of early discovery, early isolation and early treatment. This has been demonstrated by multi-national practice for epidemic prevention and is recognized by experts. The main sample for nucleic acid detection is from human body fluid on the posterior pharyngeal wall, and the sampling of the sample completely depends on manual sampling, namely medical staff deeply samples the posterior pharyngeal wall of a sampled person by using a cotton swab. The sampling method needs to be completed in a close range, and infection risks are brought to a sampler. The safest sampling mode is that the person to be sampled independently finishes sampling without contacting with other persons. In addition, because the pharynx back wall is difficult to see in manual sampling, the phenomenon of missed detection is easy to occur, namely the sampled samples are not all from the pharynx back wall of the sampled person, but only saliva of the sampled person. In order to prevent missing detection or false detection, the manual sampling has high requirements on the operation process, and the accuracy of nucleic acid detection can be ensured. For the situation that the person to be sampled carries out self-sampling, operation errors and missed detection situations easily occur due to the fact that medical care operation experience is not available.

Disclosure of Invention

The invention provides an artificial pharynx posterior wall body fluid sampling device, aiming at overcoming the technical problems that the requirement of artificial sampling on an operation process is high and inaccurate detection is easy to generate in the prior art, and the artificial pharynx posterior wall body fluid sampling device can effectively reduce misoperation and missing detection and improve the detection accuracy. Meanwhile, the difficulty of sampling operation is reduced, and the sampling can be performed for the user.

The invention provides an artificial pharynx posterior wall body liquid sampling device, which is characterized in that: the sampling device is used for extending to a sampling point to perform sampling, and the mouth gag is used for pressing the tongue of a person to be sampled so that the sampling device clamps a cotton swab to reach the sampling point; the sampling device comprises a machine body and a cotton swab loading and unloading device arranged at the front end of the machine body;

the device also comprises an inertia measuring unit arranged on the body, a central processing unit, a storage unit for storing information, an image acquisition device arranged at the end part of the body and used for acquiring the image of the pharyngeal backwall of the detected person, and a display device for displaying the image;

the inertial measurement unit is used for detecting the motion acceleration information of the body during sampling and transmitting the motion acceleration information to the central processing unit and the storage unit in real time;

the image acquisition device is used for acquiring an image of the pharyngeal backwall of the detected person and transmitting the image to the central processing unit;

the storage unit is used for storing the sampled image information and storing the ideal image information of the pharyngeal backwall;

the central processing unit is used for receiving the speed information of the inertia measurement unit, determining that the hand stops moving and the sampling cotton swab reaches a sampling point through the acceleration information; the image acquisition device is used for acquiring an image of the pharyngeal backwall of the detected person, comparing the acquired image with an ideal image preset in the storage unit, and determining and outputting a sampling area image and an indication image of a sampling direction to the display device;

and the display device is used for displaying the image acquired by the image acquisition device and displaying a sampling area graph and an indication graph of the sampling direction given by the central processing unit.

Preferably, the cotton swab loading and unloading device comprises a cavity arranged on the machine body, and a connecting rod is arranged in the cavity in the machine body; the front end of the connecting rod is provided with a cotton swab inserting hole, and three elastic metal sheets are connected around the cotton swab inserting hole; the front end of the cavity of the machine body is provided with a stopping part, and the front end of the cavity is provided with an opening for the elastic metal sheet to extend out and retract into an opening in a closing state; the middle part of the connecting rod is provided with a baffle disc which is matched with the cavity, the connecting rod at the front end of the baffle disc is sleeved with a spring, the tail end of the connecting rod is connected with the assembling and disassembling handle, and the rear end of the cavity of the machine body is provided with a through hole for the assembling and disassembling handle to pass through.

Preferably, the mouth gag comprises a guide pipe and a baffle plate vertically arranged at the bottom end of the guide pipe.

As a preferred mode, the mobile phone further comprises a WIFI module for transmitting data in real time, wherein the WIFI module is used for the central processing unit and the remote mobile phone or the computer to control and provide data transmission.

Preferably, the body is a straight rod.

Preferably, the lighting device is arranged at the front end of the body.

Preferably, the lighting device is a high-brightness LED.

Preferably, the image acquisition device is a high-definition CMOS micro camera.

Preferably, the display device is a liquid crystal display.

During the use process, a sampling person firstly pushes a cotton swab into a cotton swab insertion hole through a loading and unloading handle, the loading and unloading handle is firstly pushed forwards, a connecting rod is pushed forwards, a spring is compressed, an elastic metal sheet is expanded, a cotton swab stick can be inserted into the cotton swab insertion hole at the moment, then the loading and unloading handle is loosened, the connecting rod is backwards under the action of the spring, the elastic metal sheet deforms to clamp the cotton swab stick, after the cotton swab is loaded, a guide pipe of a mouth opener is placed into the mouth of the sampling person, a tongue is pressed through the guide pipe, and a baffle is attached to the lip.

Before sampling, turning on a power switch, and at the moment, starting the work of the image acquisition device and the display device, transmitting the acquired image of the pharyngeal backwall to a central processing unit and a storage unit by the image acquisition device, comparing the acquired image with an ideal image by the central processing unit, forming a sampling area image and a movement direction indication image, transmitting the sampling area image and the movement direction indication image to the display device, and displaying the sampling area image and the movement direction indication image in the image; meanwhile, a sampling operator extends the cotton swab into the pharyngeal back wall of a sampled person for sampling through a guide tube of the mouth gag for guiding a sampling area graph and a motion direction indicating graph given in a video of the display device, the inertial measurement unit transmits acceleration information to the central controller, the central controller determines that the hand stops moving through the acceleration information, the sampling cotton swab reaches a sampling point, and after sampling is finished. Then, the sampling operator pushes the assembling and disassembling handle forward to take out the cotton swab. After the sampling process is finished, the sampling device can automatically store the sampling process video in the storage unit for check.

Furthermore, a WIFI module is added, and after networking, sampling processes can be remotely monitored through collection or real-time synchronization of a computer, so that sampling failure is prevented.

And by further adding the lighting device, the image acquisition can be clearer.

According to the invention, the image acquisition device is arranged at the front end of the sampling device, and sampling is cooperatively controlled through the inertia measurement unit, the display device and the central controller, so that sampling indication can be more accurately given and sampling can be carried out, and meanwhile, whether sampling points are reached can be judged according to the inertia measurement unit, so that the sampling accuracy can be improved, and whether sampling is successful or not can be judged; meanwhile, the display device can be added with a voice prompt function, and the central controller gives an instruction to prompt a sampling operator to finish a sampling process; the display device also plays the sampling area graph and the motion direction indication graph; the sampling operator is guided by the voice prompt and the video of the display device to extend the cotton swab into the guide tube of the mouth gag to sample the pharyngeal backwall.

The mouth gag with the three-dimensional space supporting structure is further specially designed according to the space structure of the human oral cavity, the guide tube can ensure that the upper jaw and the lower jaw cannot be closed when a person to be sampled is held in the mouth, and simultaneously, the tongue part of the person to be sampled can not be pressed, so that the tongue part of the person to be sampled cannot interfere with the sampling process, the back annular anti-swallowing baffle plate can block lips and teeth of the person to be sampled, and the person to be sampled is prevented from being swallowed carelessly.

Drawings

FIG. 1 is a structural diagram of a sampling device of an artificial pharyngeal posterior wall fluid sampling apparatus according to the present invention;

FIG. 2 is a view showing a configuration of a control device of the artificial pharyngeal posterior wall fluid sampling apparatus according to the present invention;

FIG. 3 is a front view of a sampling device of an artificial pharyngeal posterior wall fluid sampling apparatus according to the present invention;

FIG. 4 is an enlarged end view of the head of the body of the artificial pharyngeal posterior wall fluid sampling device of the present invention;

FIGS. 5a and 5b are cross-sectional views of a cotton swab loading and unloading device of an artificial pharyngeal posterior wall fluid sampling device according to the present invention in two states;

FIG. 6 is a perspective view of a mouth gag of an artificial pharyngeal posterior wall fluid sampling device of the present invention;

FIG. 7 is a schematic view of a collected posterior pharyngeal wall of an artificial posterior pharyngeal wall fluid sampling apparatus of the present invention;

fig. 8 is a schematic diagram of a display device of the artificial pharyngeal posterior wall fluid sampling apparatus of the present invention displaying a diagram of the sampling area of the pharyngeal posterior wall.

Reference numerals:

10 cotton swabs; 100 a sampling device; 101 fuselage, 1011 cavity, 1012 stop, 1013 opening, 1014 through hole; 102 a loading and unloading handle; 103 a spring; 104 connecting rods, 1041 baffle discs and 1042 cotton swab inserting holes; 105 a resilient metal sheet; 200 mouthparts, 201 guide pipes and 202 baffles; 300 an inertial measurement unit; 400 central processing unit; 500 a memory cell; 600 an image acquisition device; 700 a display device; 800 a lighting device; and a 900WIFI module.

Detailed Description

As shown in fig. 1 to 6, the present invention provides an artificial pharyngeal posterior wall fluid sampling device, including:

a sampling device 100 and a speculum 200; the sampling device 100 is used for extending to a sampling point for sampling, and the mouth gag 200 is used for pressing the tongue of a person to be sampled so that the sampling device 100 clamps the cotton swab 10 to reach the sampling point; the sampling device 100 comprises a machine body 101 and a cotton swab loading and unloading device arranged at the front end of the machine body 101;

referring to fig. 2, the artificial pharyngeal posterior wall fluid sampling apparatus of the present invention further includes a control device for controlling sampling, the control device including: an inertia measuring unit 300, a central processing unit 400, a storage unit 500, an image acquisition device 600 and a display device 700 for displaying images;

the Inertial Measurement Unit (IMU)300 is disposed on the body 101, and is configured to detect acceleration information of the movement of the body 101 during sampling, and transmit the movement acceleration information to the central processing unit 400 and the storage unit 500 in real time;

the image acquisition device 600 is arranged at the end of the body 101 and used for acquiring the image of the pharyngeal backwall of the detected person and transmitting the image to the central processing unit 400; the image capture device 600 preferably employs a high-definition CMOS miniature camera;

the storage unit 500 is used for storing the sampled image information and storing the ideal image information of the pharyngeal posterior wall; the storage unit 500 may employ a TF card or be provided in a Central Processing Unit (CPU) 400;

the Central Processing Unit (CPU)400 is configured to receive acceleration information of the inertial measurement unit 300, and determine that the sampling device 100 has stopped moving and the sampling swab 10 reaches a sampling point according to the acceleration information; the image acquisition device 600 is used for receiving the image of the pharyngeal backwall of the detected person, which is acquired by the image acquisition device 600, comparing the received image with an ideal image preset in the storage unit 500, and determining and outputting a sampling area map and an indication map of a sampling direction to the display device 700;

the display device 700 is configured to display the image acquired by the image acquisition device, and display a sampling area map and an indication map of a sampling direction given by the central processing unit 400, and specifically uses a liquid crystal display.

The ideal image is realized by a machine learning method in AI (artificial intelligence), and a supervised learning BP algorithm is adopted: first 1000 throat images of different persons are collected, and the best sampling points in the images are marked by experienced nurses, so that ideal images are formed. And inputting the marked image into a convolutional neural network, and training by utilizing a BP learning algorithm. The trained neural network has the capability of automatically marking target points adopted in the throat image, and the trained neural network parameters are stored in the storage unit 500, namely, the bronze drum can automatically generate a sampling area image and an indication image of a sampling direction after comparing the acquired image with an ideal image.

In order to collect an image more clearly, the front end of the body 101 is provided with an illumination device 800, and the illumination device 800 may be a high-brightness LED.

The control device further comprises a WIFI module 900 for transmitting data in real time, and the WIFI module 900 is used for the central processor 400 and a remote mobile phone or a computer to control and provide data transmission. Therefore, the remote guidance monitoring sampling process can be realized.

As shown in fig. 5a and 5b, the structure of the cotton swab loading and unloading device is as follows: in this embodiment, the body 101 is a straight rod, a cavity 1011 is disposed on the body 101, a connecting rod 104 is disposed in the cavity 1011 of the body 101, a cotton swab inserting hole 1042 is disposed at the front end of the connecting rod 104, three elastic metal sheets 105 are connected around the cotton swab inserting hole 1042, and a stopper 1012 is disposed at the front end of the cavity of the body 101, so that an opening 1013 is formed at the front end of the cavity 1011 for the elastic metal sheets 105 to extend out and retract into and close, that is, when the elastic metal sheets 105 extend out of the opening 1013, the three elastic metal sheets 105 are in an open state under the action of their own elastic force, and when the elastic metal sheets 105 contract to the opening 1013, the elastic metal sheets 105 are in a closed state; the middle part of the connecting rod 104 is provided with a blocking disc 1041, the blocking disc 1041 is matched with the cavity 1011, the connecting rod 104 at the front end of the blocking disc 1041 is sleeved with a spring 103, the tail end of the connecting rod 104 is connected with the assembling and disassembling handle 102, when the spring 103 is in a free state, the elastic metal sheet 105 retracts to the opening 1013, the three elastic metal sheets 105 are in a closed state, and the rear end of the 1011 of the cavity of the machine body 101 is provided with a through hole 1014 for the assembling and disassembling handle 102 to pass through. When the cotton swab 10 is used, as shown in fig. 5a, the loading and unloading handle 102 is pushed forward, the catch disc 1041 on the connecting rod 104 compresses the spring 103, the three elastic metal sheets 105 extend out of the opening 1013, and the front ends of the elastic metal sheets 105 are opened under the action of the elastic force of the elastic metal sheets 105, at this time, the tail end of the cotton swab 10 can be inserted into the cotton swab insertion hole 1042 from the opening of the elastic metal sheets 105, the loading and unloading handle 102 is released, as shown in fig. 5b, the connecting rod 104 is retracted under the action of the elastic force of the spring 103, and the elastic metal sheets 105 enter the opening 1013 to be in a closed state, so that the clamping action of the cotton swab 10 is completed.

As shown in fig. 6, the mouth gag 200 comprises a guide tube 201 and a baffle 202 vertically arranged at the bottom end of the guide tube 201, the guide tube 201 is elliptical and is used for penetrating into the oral cavity and pressing the tongue of a sampled person, and the baffle 202 is used for stopping and preventing the user from swallowing by mistake.

Referring to fig. 1, in the embodiment, the body is in a square straight rod shape, obviously, the body may also be in a round straight rod shape, that is, a pen shape, which has an advantage of being convenient for holding by hand, and meanwhile, the display device 700 is connected by wires and is independently arranged, so that the medical device not only can be used for sampling for a person to be sampled by medical staff, but also can be used for sampling by non-professional staff or for family members.

In the using process, a sampling person firstly installs the cotton swab 10, the cotton swab 10 is pushed into the cotton swab inserting hole 1042 through the assembling and disassembling handle 102, the assembling and disassembling handle 102 is pushed forwards, the connecting rod 104 is pushed forwards, the spring 103 is compressed, the elastic metal sheet 105 is opened, the cotton swab 10 can be inserted into the cotton swab inserting hole 1042 at the moment, then the assembling and disassembling handle 102 is loosened, the connecting rod 104 is pushed backwards under the action of the spring 103, the elastic metal sheet 105 deforms to clamp the cotton swab 10, after the cotton swab 10 is completely loaded, the guide tube 201 of the mouth opener is placed into the mouth of the sampling person, the tongue is pressed through the guide tube 201, and the baffle 202 is attached to the lip. Turning on the power, referring to fig. 7 and 8, the image capturing device 600 transmits the captured image of the pharyngeal wall of the subject (as shown in fig. 7) to the central processor 400, wherein in fig. 7, P2 is the pharyngeal wall, and P3 is the posterior part of the tongue; the central processing unit 400 compares the received image with an ideal image preset in the storage unit 500, determines and outputs a sampling region map P1 and an indication map of the sampling direction to the display device 700 (as shown in fig. 8), a curve P1 in fig. 8 is the sampling region map, under the indication of the display device 700, the pharyngeal back and the sampling region maps of the testee can be clearly observed, when the hand of the testee reaches the sampling point, the inertial measurement unit 300 detects that the speed information is transmitted to the central processing unit 400, the central processing unit 400 determines that the sampling device 100 has stopped moving through the acceleration information, and the sampling swab 10 reaches the sampling point, so that accurate sampling can be effectively avoided. After sampling, the worker pushes the assembling and disassembling handle 9 forward to take out the cotton swab 10, and sampling is finished. After the sampling process is finished, the central controller stores the sampling process video of the image acquisition device 600 in the storage unit 500 for verification. The WIFI module 900 can monitor sampling processes remotely and synchronously in real time after networking, and sampling failure is prevented.

The foregoing description is intended to be illustrative rather than limiting, and it will be understood by those of ordinary skill in the art that any modification, variation or equivalent may be made without departing from the spirit and scope of the invention as defined in the claims, for example: it is within the scope of the present invention to change the shape of the body to be cylindrical or elliptical cylindrical, and to change the number of lighting devices.

Claims

1. The utility model provides a wall body liquid sampling device behind artificial pharynx which characterized in that: comprises a sampling device (100) used for extending to a sampling point to perform sampling and a mouth gag (200) used for pressing the tongue of a person to be sampled so that the sampling device (100) clamps a cotton swab (10) to reach the sampling point; the sampling device (100) comprises a machine body (101) and a cotton swab loading and unloading device arranged at the front end of the machine body (101);

and a control device for controlling the sampling, the control device comprising: an inertia measuring unit (300) arranged on the body (101), a central processing unit (400), a storage unit (500) used for storing information, an image acquisition device (600) arranged at the end part of the body and used for acquiring the image of the pharyngeal backwall of the detected person, and a display device (700) used for displaying the image;

the inertial measurement unit (300) is used for detecting the motion acceleration information of the body (101) during sampling and transmitting the motion acceleration information to the central processing unit (400) and the storage unit (500) in real time;

the image acquisition device (600) is used for acquiring an image of the pharyngeal backwall of the detected person and transmitting the image to the central processing unit (400);

the storage unit (500) is used for storing the sampled image information and storing ideal image information of the pharyngeal backwall;

the central processing unit (400) is used for receiving the speed information of the inertial measurement unit (300), determining that the hand stops moving and the sampling cotton swab reaches a sampling point according to the acceleration information; the image acquisition device (600) is used for receiving the image of the pharyngeal backwall of the detected person, comparing the received image with an ideal image preset in the storage unit (500), and determining and outputting a sampling area image and an indication image of a sampling direction to the display device (700);

the display device (700) is used for displaying the image acquired by the image acquisition device and displaying the sampling area graph and the indication graph of the sampling direction given by the central processing unit (400).

2. An artificial pharyngeal posterior wall fluid sampling device according to claim 1, wherein: the cotton swab loading and unloading device comprises a cavity (1011) arranged on the machine body (101), and a connecting rod (104) is arranged in the cavity (1011) in the machine body (101); the front end of the connecting rod (104) is provided with a cotton swab inserting hole (1042), and three elastic metal sheets (105) are connected around the cotton swab inserting hole (1042); a stopping part (1012) is arranged at the front end of the cavity (1011) of the machine body (101), and an opening (1013) for the elastic metal sheet (105) to extend out and retract to be closed is formed at the front end of the cavity (1011); the middle part of the connecting rod (104) is provided with a blocking disc (1041), the blocking disc (1041) is matched with the cavity (1011), the connecting rod (104) at the front end of the blocking disc (1041) is sleeved with a spring (103), the tail end of the connecting rod (104) is connected with the loading and unloading handle (102), and the rear end (1011) of the cavity of the machine body (101) is provided with a through hole (1014) for the loading and unloading handle (102) to pass through.

3. An artificial pharyngeal posterior wall fluid sampling device according to claim 2, wherein: the mouth gag comprises a guide pipe (201) and a baffle plate (202) vertically arranged at the bottom end of the guide pipe (201).

4. An artificial pharyngeal posterior wall fluid sampling device according to claim 1, wherein: the WIFI module (900) is used for transmitting data in real time, and the WIFI module (900) is used for the central processing unit (400) and remote mobile phone or computer control to provide data transmission.

5. An artificial pharyngeal posterior wall fluid sampling apparatus according to any one of claims 1-4, wherein: the machine body (101) is in a straight rod shape.

6. An artificial pharyngeal posterior wall fluid sampling apparatus according to claim 5, wherein: further comprises a lighting device (800), and the lighting device (800) is arranged at the front end of the machine body (101).

7. An artificial pharyngeal posterior wall fluid sampling device according to claim 6, wherein: the lighting device (800) is a high brightness LED.

8. An artificial pharyngeal posterior wall fluid sampling apparatus according to any one of claims 1-3, wherein: the image acquisition device (600) is a high-definition CMOS miniature camera.

9. An artificial pharyngeal posterior wall fluid sampling device according to claim 6, wherein: the display device (700) is a liquid crystal display screen.