Throat swab sampling device

Abstract

The present invention provides a throat swab sampling device, comprising: a sampling head device for fixing and carrying a throat swab, a transfer platform for connecting the throat swab sampling device and an external component, and a sampling motion device for driving the sampling head device to move; the sampling motion device includes a housing, a fixed platform, a turntable motor installed between the fixed platform and the transfer platform, two side plates installed on the fixed platform, a rotating shaft installed between the two side plates, a cross beam installed on the rotating shaft, a tension spring installed between the fixed platform and the cross beam, a lead screw motor installed on the fixed platform, a top wheel installed at the front end of the lead screw of the lead screw motor, and an anti-rotation device installed on the fixed platform; the present invention is used to avoid infection between medical staff and the person being sampled during throat swab collection, improve the safety of throat swab collection; and meet the requirements of automation, lightweight, rapidity of collection action, collection comfort and safety, etc.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a throat swab sampling device. Background Art

[0002] Infectious diseases can cause public health emergencies. For example, SARS virus, H7N9 avian influenza virus, Ebola virus, and novel coronavirus are all likely to cause infections in a large number of people and even result in deaths, having a serious impact on the entire society. As a commonly used medical detection method for infectious diseases, throat sampling is a process in which a sampling tool takes secretions from the throat and tonsils of the human body for bacterial culture or virus isolation, which can help understand the patient's condition, oral mucosa, and throat infection situation. For some highly infectious and harmful viruses that cause infectious diseases, the collection of throat biological samples has a high risk of infection, which can cause infections among medical staff, leading to a shortage of medical staff and further development of the epidemic. Therefore, there is an urgent need for intelligent robots that can be remotely controlled under isolation conditions to replace medical staff for close-range sampling of patients. Medical staff can operate in a remote isolation space, thereby effectively preventing them from being infected.

[0003] Medical staff control the sampling device through an operation console. The front-end instrument of the sampling device mimics the flexible movements of the wrist of medical staff to take samples in the human oral cavity. Therefore, there are higher design requirements for the throat swab sampling device, which should meet the requirements of miniaturization, lightweight, fast movement, and safety of the front-end instrument. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and propose a throat swab sampling device.

[0005] To achieve the above purpose, the present invention adopts the following specific technical solutions:

[0006] The throat swab sampling device proposed by the present invention includes: a sampling head device for fixing and carrying the throat swab, a transfer platform for connecting the throat swab sampling device and external components, and a sampling movement device for driving the sampling head device to move;

[0007] The sampling movement device includes a housing and internal components installed in the housing;

[0008] The internal components include: a fixed platform, a turntable motor installed between the fixed platform and the transfer platform for rotating the throat swab sampling device, two side plates installed at intervals on the fixed platform for support, a rotating shaft installed between the two side plates, a cross beam installed on the rotating shaft for connecting with the sampling head device, a tension spring installed between the fixed platform and the cross beam for balancing the cross beam, a lead screw motor installed on the fixed platform for driving the cross beam to rotate around the rotating shaft, and an anti-rotation device installed on the fixed platform for preventing the lead screw of the lead screw motor from rotating;

[0009] The housing is provided with a window for connecting the cross beam and the sampling head device. The size of the window corresponds to the rotation range of the cross beam, ensuring that there is no interference between the housing and the cross beam when the cross beam and the sampling head device rotate together. The connection end of the housing and the sampling head device is an arc-shaped curved surface. The cross beam adapter on the sampling head device cooperates with the arc-shaped curved surface to seal the window. The side vertical plates are symmetrically installed on both sides of the fixed platform. The axis of the rotating shaft is orthogonal to the central axis of the cross beam. The axis of the throat swab, the central axis of the sampling head device, and the central axis of the cross beam are parallel. The tension spring is installed between the fixed platform and the cross beam.

[0010] Preferably, a top wheel for reducing the friction between the lead screw and the cross beam is installed at the front end of the lead screw of the lead screw motor. A smooth plate for cooperating with the top wheel to reduce friction is provided on the cross beam. The smooth plate is made of a hard aluminum plate with smooth friction.

[0011] Preferably, the lead screw motor is a through-type lead screw linear stepper motor.

[0012] Preferably, the sampling head device includes: a cross beam adapter for connecting with the cross beam, a lower shell, an upper shell installed above the lower shell, and a closed head chamber is formed after the lower shell and the upper shell are cooperatively installed.

[0013] A flexible clamping and rotating device for clamping the throat swab, a slip ring for transmitting force, a motor for driving the flexible clamping and rotating device to rotate, a laser rangefinder for measuring the distance from the person being sampled, and a camera for collecting image information are installed in the head chamber.

[0014] The flexible clamping and rotating device, the slip ring, and the motor are connected in series in sequence, and the central axis of the flexible clamping and rotating device, the central axis of the slip ring, and the central axis of the output shaft of the motor coincide.

[0015] The optical axis of the lens of the camera is parallel to the central axis of the flexible clamping and rotating device.

[0016] The laser beam emitted by the laser rangefinder intersects with the axis of the throat swab at the head position of the throat swab.

[0017] Preferably, the flexible clamping and rotating device includes: a sleeve, a transfer component installed at one end of the sleeve for connecting with the slip ring, a bearing installed on the outer cylindrical surface of the sleeve, a central rod with a part fixed inside the sleeve and another part extending out of the sleeve for transmitting force. A linear bearing for supporting and lubricating the central rod, a snap ring for fixing the linear bearing, a pressure sensor, and a sensor pressing plate for transmitting force and pressing the pressure sensor on the transfer component are respectively installed inside the sleeve. A spring for buffering the movement of the central rod is installed between the central rod and the sensor pressing plate. A clamping sleeve for carrying and fixing the throat swab is installed at one end of the central rod, and a spring piece for pressing the throat swab is installed inside the clamping sleeve.

[0018] The end of the clamping sleeve close to the pharyngeal swab is in the shape of a hollow cone, and the inner hole diameter of the hollow cone is the same as the rod diameter of the pharyngeal swab; the bearing is fixed by the inner wall of the lower shell and the inner wall of the upper shell; the center rod, spring, sensor pressure plate and pressure sensor are installed in series in sequence.

[0019] Preferably, the head chamber is further equipped with: a baffle for closing the window on the upper shell, a mounting plate mounted on the lower shell, clamping plates mounted on both sides of the inner wall of the lower shell and pressed and fixed by the mounting plate, and a support plate mounted on the upper shell;

[0020] The slip ring and the motor are mounted on the mounting plate; the laser rangefinder is mounted in the groove of the clamping plate; and the camera is mounted on the supporting plate;

[0021] The baffle is made of transparent material; a light assembly for supplementary light is installed on the support plate, and the optical axis of the light assembly is parallel to the central axis of the flexible clamping and rotating device.

[0022] Preferably, a through groove is provided on the outer cylindrical surface of one end of the sleeve close to the adapter assembly; a positioning key is provided on the end of the center rod close to the spring; the positioning key and the through groove cooperate to ensure that the center rod is driven to rotate simultaneously when the sleeve rotates; a shoulder for axially positioning the bearing is provided on the outer cylindrical surface of the sleeve.

[0023] Preferably, an annular groove for fixing the spring is provided at one end of the sensor pressure plate, and the size of the annular groove is the same as the size of the spring.

[0024] Preferably, the pressure sensor is a thin film sensor; a through hole for allowing the pins of the pressure sensor to pass through is provided on the adapter assembly.

[0025] Preferably, in the axial direction of the clamping sleeve, the number of spring pieces in a group is at least 3, and the installation positions of all spring pieces are collinear; in the radial direction of the clamping sleeve, the number of spring pieces is not less than 3, and each group of spring pieces is evenly distributed along the circumference.

[0026] The present invention can achieve the following technical effects:

[0027] The present invention provides a throat swab sampling device, which can imitate the flexible and gentle movements of the wrist during the actual sampling process of medical staff, including the forward and backward movement and the swinging sampling in multiple directions. It realizes the non-contact sampling of the patient's oral cavity by medical staff under isolation conditions, avoids the risk of infection, improves the safety of sampling, and at the same time meets the requirements of miniaturization, light weight, rapid acquisition movement and acquisition comfort of the front-end instrument; through the camera and laser rangefinder in the sampling head device of the present invention, the oral cavity of the sampling patient is positioned, further improving the accuracy of throat swab sampling, ensuring the precise positioning of throat swab sampling, and reducing the influence of parallax; a pressure sensor is provided inside the sampling head device of the present invention. When the throat swab contacts the sampling site, the pressure value feedback by the pressure sensor changes, and the device stops moving. And a buffer mechanism is arranged inside the sampling head device, so the contact is relatively gentle and the person being sampled has no obvious pain; under isolation conditions, medical staff can remotely control the throat swab sampling device to move in front of the patient to sample the patient's oral cavity, avoiding the infection caused by direct contact between medical staff and patients during the sampling process, enabling them to safely conduct in-depth examinations on patients, improving the safety of throat swab sampling, and ensuring the safety of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a throat swab sampling device according to an embodiment of the present invention;

[0029] Figure 2 is a schematic external structure diagram of a throat swab sampling device according to an embodiment of the present invention;

[0030] Figure 3 is a schematic internal structure diagram of a sampling head device according to an embodiment of the present invention;

[0031] Figure 4 is a schematic external view of a flexible clamping and rotating device according to an embodiment of the present invention;

[0032] Figure 5 is a full sectional view of a flexible clamping and rotating device according to an embodiment of the present invention;

[0033] Figure 6 is a schematic structural diagram of a sleeve according to an embodiment of the present invention;

[0034] Figure 7 is a schematic structural diagram of a central rod according to an embodiment of the present invention;

[0035] Figure 8 is a schematic structural diagram of the cooperation between a mounting plate and a lower shell according to an embodiment of the present invention;

[0036] Figure 9Schematic diagram of the structure of the laser rangefinder and the clamping plate cooperating with the lower shell according to an embodiment of the present invention.

[0037] The reference numerals therein include: sampling head device 1, housing 2, cross beam 3, rotating shaft 4, side vertical plate 5, top wheel 6, tension spring 7, lead screw motor 8, fixed platform 9, anti-rotation device 10, turntable motor 11, adapter platform 12, throat swab 13, flexible clamping and rotating device 101, slip ring 102, laser rangefinder 103, motor 104, lower shell 105, cross beam adapter 106, upper shell 107, camera 108, lighting component 109, mounting plate 110, clamping plate 111, support plate 112, baffle 113, clamping sleeve I, elastic piece II, center rod III, bearing IV, linear bearing V, sleeve VI, spring VII, sensor pressing plate VIII, pressure sensor IX, adapter assembly X, circlip XI, positioning key III-I, through groove VI-I. Detailed implementation manners

[0038] In the following, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, the same modules are denoted by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, their detailed descriptions will not be repeated.

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation to the present invention.

[0040] The following will be combined with Figure 1 and Figure 9 to describe in detail the specific working mode of the present invention:

[0041] The throat swab sampling device proposed by the present invention, as Figure 1 shown, includes: a sampling head device 1 for fixing and carrying the throat swab 13, an adapter platform 12 for connecting the throat swab sampling device and external components, and a sampling motion device for driving the sampling head device 1 to move;

[0042] The sampling head device 1 includes: a flexible clamping and rotating device 101, a slip ring 102, a laser rangefinder 103, a motor 104, a lower shell 105, a cross beam adapter 106, an upper shell 107, a camera 108, a lighting component 109, a mounting plate 110, a clamping plate 111, a support plate 112, and a baffle 113; a closed head chamber is formed after the lower shell 105 and the upper shell 107 are cooperatively installed.

[0043] The flexible clamping and rotating device 101 is used to clamp the throat swab 13; the flexible clamping and rotating device 101 is installed in the head chamber and can drive the throat swab 13 to rotate. The flexible clamping and rotating device 101 uses the elastic piece II to clamp the throat swab 13, with a gentle clamping force, preventing the throat swab 13 from breaking during clamping; at the same time, when the resistance encountered by the throat swab 13 during sampling is large, the elastic piece II and the throat swab 13 will have relative sliding, reducing discomfort; the flexible clamping and rotating device 101 is provided with a spring VII and a pressure sensor IX, improving the comfort of throat swab sampling; at the same time, the pressure sensor IX can real-time feedback the change of the pressure value, improving the safety of throat swab sampling.

[0044] The slip ring 102 is used to transmit the force for driving the flexible clamping and rotating device 101 to rotate by the motor 104; the slip ring 102 is installed on the mounting plate 110 in the head chamber and is located between the flexible clamping and rotating device 101 and the motor 104.

[0045] The slip ring 102 has an inner and outer ring structure; the inner ring is used to connect the motor 104 and the flexible clamping and rotating device 101 and rotates simultaneously with the flexible clamping and rotating device 101; the inner ring transmits the force for driving the flexible clamping and rotating device 101 to rotate by connecting with the adapter assembly X; the inner ring is provided with a through hole for passing the circuit of the pressure sensor IX; the outer ring is used to carry the inner ring and is fixedly connected to the mounting plate 110.

[0046] The laser rangefinder 103 is used to measure the distance from the person being sampled; as Figure 9 shown, the laser rangefinder 103 is installed in the groove of the clamping plate 111. The laser beam emitted by the laser rangefinder 103 intersects the axis of the throat swab 13 at the head position of the throat swab 13, so as to ensure that the laser rangefinder can real-time measure the specific distance between the head of the throat swab 13 and the person being sampled.

[0047] The motor 104 is used to drive the flexible clamping and rotating device 101 to rotate, and the motor 104 is installed on the mounting plate 110 in the head chamber. As Figure 3 shown, the central axes of the flexible clamping and rotating device 101, the slip ring 102 and the output shaft of the motor 104 coincide.

[0048] The crossbeam adapter 106 is used to connect with the crossbeam 3. The crossbeam adapter 106 is fixedly connected to the lower shell 105 and the upper shell 107 respectively.

[0049] The upper shell 107 is installed above the lower shell 105. The upper shell 107 is provided with a window for light transmission. In an embodiment of the present invention, the lower shell 105 and the upper shell 107 are fixedly connected by threads.

[0050] The camera 108 is used to collect image information. The camera 108 is mounted on the support plate 112. The optical axis of the lens of the camera 1018 is parallel to the central axis of the flexible clamping and rotating device 101, ensuring that the camera 108 can directly collect the oral cavity image of the sampled person.

[0051] The light assembly 109 is used to provide supplementary light to the camera 108 when the light is dim; the light assembly 109 is mounted on the support plate 112; the optical axis of the light assembly 109 is parallel to the central axis of the flexible clamping and rotating device 101, ensuring that the light assembly 109 directly illuminates the oral cavity of the person being sampled.

[0052] The mounting plate 110 is used to support the slip ring 102 and the motor 104. Figure 8 As shown, the mounting plate 110 is mounted on the lower shell 105 and is located in the head cavity.

[0053] The clamping plate 111 is used to fix and carry the laser rangefinder 103. Figure 8 and Figure 9 As shown, the clamping plates 111 are installed on both sides of the inner wall of the lower shell 105 and are pressed and fixed by the mounting plate 110. A groove for fixing the laser rangefinder 103 is provided on the clamping plate 111. The inclination angle of the groove ensures that the optical path of the laser emitted by the laser rangefinder 103 intersects with the axis of the pharyngeal swab 13 at the head position of the pharyngeal swab 13.

[0054] The support plate 112 is used to fix and carry the camera 108 and the light assembly 109. Figure 3 As shown, the support plate 112 is mounted on the upper shell 107 and is located in the head chamber. In one embodiment of the present invention, the support plate 112 is fixedly mounted on the upper shell 107 by screws.

[0055] The baffle 113 is used to close the window on the upper shell 107. Figure 3 As shown, the baffle 113 is mounted on the upper shell 107 and is located in the head chamber. The baffle 113 is made of a transparent material to ensure light transmittance.

[0056] The flexible clamping and rotating device 101 includes: a clamping sleeve I, a spring piece II, a center rod III, a bearing IV, a linear bearing V, a sleeve VI, a spring VII, a sensor pressure plate VIII, a pressure sensor IX, a switching assembly X, and a retaining spring XI.

[0057] The clamping sleeve I is installed at one end of the central rod III and is used to carry and fix the throat swab 13. Figure 5As shown in the figure, in order to facilitate the centering during the clamping of the throat swab 13, one end of the clamping sleeve I close to the throat swab 13 is in the shape of a hollow frustum, and the inner diameter of the inner hole of the hollow frustum is the same as the diameter of the rod part of the throat swab 13. When the throat swab 13 approaches the clamping sleeve I, the rod part of the throat swab 13 first contacts the hollow frustum. When the throat swab 13 continues to move, it will be guided by the inner wall of the hollow frustum into the inner hole of the hollow frustum, ensuring the convenience of centering during the clamping of the throat swab 13. The clamping sleeve I is provided with holes for installing the elastic piece II, and the size and quantity of the holes correspond to those of the elastic piece II. In the embodiment of the present invention, the clamping sleeve I and the central rod III are assembled together by an interference fit method to ensure that the central rod III can drive the clamping sleeve I to rotate together.

[0058] The elastic piece II is installed inside the clamping sleeve I and is used to press the throat swab 13. To ensure the centering and reliability of clamping the throat swab 13, in the axial direction of the clamping sleeve I, the number of a group of elastic pieces II is at least three, and the installation positions of all the elastic pieces II are collinear; in the radial direction of the clamping sleeve I, the number of groups of the elastic pieces II is not less than three, and each group of elastic pieces II is evenly distributed along the circumference.

[0059] As Figure 4 and Figure 5 shown, in an embodiment of the present invention, three elastic pieces II are selected as a group, and there are a total of three groups of elastic pieces II. Each group of elastic pieces II is evenly distributed at an angle of 120° in the radial direction of the clamping sleeve I. In an embodiment of the present invention, the elastic piece II is selected as a thimble elastic piece.

[0060] As Figure 7 shown, a part of the central rod III is fixed inside the sleeve VI and passes through the linear bearing V; the other part extends out of the sleeve VI and is connected to the clamping sleeve I. The central rod III is used to transmit the contact force between the throat swab 13 and the sampled part and drive the clamping sleeve I to rotate. A positioning key III-I is provided at one end of the central rod III close to the spring VII. The positioning key III-I is used to cooperate with the through groove VI-I on the outer cylindrical surface of the sleeve VI to ensure that the sleeve VI drives the central rod III to rotate simultaneously when rotating.

[0061] The bearing IV is installed on the outer cylindrical surface of the sleeve VI and is restricted by the shoulder on the outer cylindrical surface of the sleeve VI. The bearing IV is fixed by the inner wall of the lower shell 105 and the inner wall of the upper shell 107. The bearing IV is used to carry the flexible clamping and rotating device 101.

[0062] The linear bearing V is installed inside the sleeve VI, axially fixed by the snap ring XI, and sleeved on the central rod III. The linear bearing V is used to support and lubricate the central rod III.

[0063] As Figure 6As shown, the sleeve VI is used to carry various internal components and drive the central rod III to rotate. The through groove VI-I is provided on the outer cylindrical surface of one end of the sleeve VI close to the adapter assembly X; the through groove VI-I cooperates with the positioning key III-I on the central rod III to ensure that the sleeve VI drives the central rod III to rotate simultaneously when rotating. The outer cylindrical surface of the sleeve VI is provided with a shoulder for axially positioning the bearing IV. The inside of the sleeve VI is provided with a groove for fixing the snap ring XI.

[0064] The spring VII is installed inside the sleeve VI and is located between the central rod III and the sensor pressing plate VIII. The spring VII is used to buffer the movement impact of the central rod III to ensure that the throat swab 13 samples gently. The spring VII is constrained and fixed by the annular groove on the sensor pressing plate VIII.

[0065] The sensor pressing plate VIII is installed inside the sleeve VI. It is used to transmit force and press the pressure sensor IX onto the adapter assembly X. One end of the sensor pressing plate VIII is provided with an annular groove for fixing the spring VII, and the size of the annular groove is the same as that of the spring VII.

[0066] The pressure sensor IX is installed inside the sleeve VI and is located between the sensor pressing plate VIII and the adapter assembly X. The pressure sensor IX is used to measure the contact pressure between the throat swab 13 and the sampled part. The pressure sensor IX selects a thin film sensor. The leads of the pressure sensor IX pass through the through holes on the adapter assembly X and are connected to the slip ring 102 and external components to transmit specific pressure data.

[0067] The adapter assembly X is installed at one end of the sleeve VI and is used to connect to the slip ring 102 and ensure the sealing of the sleeve VI. The adapter assembly X is provided with through holes for the leads of the pressure sensor IX to pass through.

[0068] The snap ring XI is installed in the internal groove of the sleeve VI and is used to fix the linear bearing V.

[0069] In an embodiment of the present invention, the transfer platform 12 is connected to an externally linearly movable slide rail assembly, and the slide rail assembly drives the throat swab sampling device to move linearly along the direction parallel to the central axis of the throat swab 13.

[0070] The sampling motion device includes a housing 2 and internal components installed in the housing 2;

[0071] The housing 2 is provided with a window for connecting the cross beam 3 and the sampling head device 1. The size of the window corresponds to the rotation range of the cross beam 3 to ensure that when the cross beam 3 and the sampling head device 1 rotate together, there is no interference between the housing 2 and the cross beam 3; the connection end of the housing 2 and the sampling head device 1 is an arc surface; the cross beam adapter on the sampling head device 1 cooperates with the arc surface to seal the window; the housing 2 is provided with through holes for passing the circuit.

[0072] The internal components include: cross beam 3, rotating shaft 4, two side vertical plates 5, tension spring 7, lead screw motor 8, fixed platform 9, anti-rotation device 10, turntable motor 11;

[0073] The cross beam 3 is used to connect and carry the sampling head device 1. The cross beam 3 is installed on the rotating shaft 4. The central axis of the cross beam 3 is parallel to the axis of the throat swab 13 and the central axis of the sampling head device 1. A smooth plate for cooperating with the top wheel 6 to reduce friction is provided on the cross beam 3. The smooth plate is made of hard aluminum plate with smooth friction.

[0074] The rotating shaft 4 is used to support the cross beam 3 and ensure that the cross beam 3 drives the sampling head device 1 to perform pitching adjustment with the rotating shaft 4 as the axis. The rotating shaft 4 is installed between the two side vertical plates 5. The axis of the rotating shaft 4 is orthogonal to the central axis of the cross beam 3.

[0075] The two side vertical plates 5 are used to support the rotating shaft 4. The two side vertical plates 5 are symmetrically installed at intervals on both sides of the fixed platform 9.

[0076] The tension spring 7 is used to balance the cross beam 3. When the lead screw motor 8 drives the cross beam 3 to rotate around the rotating shaft 4, the tension spring 7 gives a pulling force to the cross beam 3 to keep the cross beam 3 stable at all times. The tension spring 7 is installed between the fixed platform 9 and the cross beam 3.

[0077] The lead screw motor 8 is used to drive the cross beam 3 to rotate around the rotating shaft 4, and further perform the pitching adjustment of the sampling head device 1. The lead screw motor 8 is installed on the fixed platform 9. The lead screw motor 8 is a through-type lead screw linear stepping motor. A top wheel 6 for reducing the friction between the lead screw and the cross beam 3 is installed at the front end of the lead screw of the lead screw motor 8.

[0078] The fixed platform 9 is used to carry each component.

[0079] The anti-rotation device 10 is used to prevent the lead screw of the lead screw motor 8 from rotating, so as to realize that when the lead screw motor 8 rotates, the lead screw and the top wheel 6 move up and down to drive the cross beam 3 to rotate around the rotating shaft 4. The anti-rotation device 10 is installed on the fixed platform 9.

[0080] The turntable motor 11 is used to rotate the throat swab sampling device. The turntable motor 11 is installed between the fixed platform 9 and the adapter platform 12.

[0081] The working principle of the throat swab sampling device proposed by the present invention is as follows:

[0082] During operation, the external slide rail assembly drives the throat swab sampling device to move linearly along the direction parallel to the central axis of the throat swab 13.

[0083] During the movement, the sampling head device 1 can perform distance detection and the oral environment detection of the person to be sampled in real time, and adjust the position and attitude of the throat swab sampling device according to the detection results.

[0084] The throat swab sampling device can be adjusted in three attitude positions: pitching, rotating, and moving forward and backward. The external slide rail assembly connected to the adapter platform 12 drives the overall forward and backward position adjustment of the throat swab sampling device; the turntable motor 11 drives the overall rotation of the throat swab sampling device to achieve rotational adjustment; when the lead screw motor 8 rotates forward, it drives the lead screw and the top wheel 6 to move upward, driving the cross beam 3 and the sampling head device 1 to rotate counterclockwise along the rotating shaft 4. When the motor 8 rotates in the reverse direction, the lead screw and the top wheel 6 move downward, and the cross beam 3 rotates clockwise along the rotating shaft 4 under the action of the tension spring 7, thereby realizing the pitching adjustment of the sampling head device 1.

[0085] When the throat swab 13 moves to the designated sampling site, the throat swab 13 will come into contact with the sampling site, and the pressure value feedback by the pressure sensor IX changes, and the device stops moving. A buffer mechanism is provided inside the sampling head device 1, so the contact is relatively gentle and the person being sampled has no obvious pain. The motor 104 inside the sampling head device 1 works to start the sampling work; after the sampling is completed, the motor 104 stops rotating, and the throat swab sampling device moves backward under the drive of the external slide rail assembly, and the throat swab 13 leaves the oral cavity. Subsequently, other equipment removes and collects the sampled throat swab 13, thus completing the entire sampling work.

[0086] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0087] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0088] The above specific embodiments of the present invention do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A throat swab sampling device, characterized in that, it includes: a sampling head device (1) for fixing and carrying the sampling head of the throat swab (13), a transfer platform (12) for connecting the throat swab sampling device and external components, and a sampling motion device for driving the sampling head device (1) to move; the sampling motion device includes a housing (2) and internal components installed in the housing (2); the internal components include: a fixed platform (9), a turntable motor (11) installed between the fixed platform (9) and the transfer platform (12) for rotating the throat swab sampling device, two side plates (5) installed on the fixed platform (9) at intervals for support, a rotating shaft (4) installed between the two side plates (5), a cross beam (3) installed on the rotating shaft (4) for connecting with the sampling head device (1), a tension spring (7) installed between the fixed platform (9) and the cross beam (3) for balancing the cross beam (3), a lead screw motor (8) installed on the fixed platform (9) for driving the cross beam (3) to rotate around the rotating shaft (4), and an anti-rotation device (10) installed on the fixed platform (9) for preventing the lead screw of the lead screw motor (8) from rotating; the housing (2) is provided with a window for connecting the cross beam (3) and the sampling head device (1) and a through hole for passing an electric circuit, the size of the window corresponds to the rotation range of the cross beam (3), ensuring that when the cross beam (3) and the sampling head device (1) rotate together, there is no interference between the housing (2) and the cross beam (3); the connection end of the housing (2) and the sampling head device (1) is an arc-shaped curved surface; the cross beam adapter on the sampling head device (1) cooperates with the arc-shaped curved surface to seal the window; the side plates (5) are symmetrically installed on both sides of the fixed platform (9); the axis of the rotating shaft (4) and the central axis of the cross beam (3) are orthogonal; the axis of the throat swab (13), the central axis of the sampling head device (1) and the central axis of the cross beam (3) are parallel; the tension spring (7) is installed between the fixed platform (9) and the cross beam (3).

2. The throat swab sampling device according to claim 1, characterized in that, a top wheel (6) for reducing the friction between the lead screw and the cross beam (3) is installed at the front end of the lead screw of the lead screw motor (8); a smooth plate for cooperating with the top wheel (6) to reduce friction is provided on the cross beam (3); the smooth plate is made of a hard aluminum plate with smooth friction.

3. The throat swab sampling device according to claim 1, characterized in that, the lead screw motor (8) is a through-type lead screw linear stepping motor.

4. The throat swab sampling device according to claim 1, characterized in that, The sampling head device (1) includes: a crossbeam adapter (106) for connecting to the crossbeam (3), a lower shell (105), an upper shell (107) installed above the lower shell (105), and a sealed head chamber formed after the lower shell (105) and the upper shell (107) are cooperatively installed; A flexible clamping and rotating device (101) for clamping the throat swab (13), a slip ring (102) for transmitting force, a motor (104) for driving the flexible clamping and rotating device (101) to rotate, a laser rangefinder (103) for measuring the distance from the person being sampled, and a camera (108) for collecting image information are installed in the head chamber; The flexible clamping and rotating device (101), the slip ring (102), and the motor (104) are connected in series in sequence, and the central axes of the flexible clamping and rotating device (101), the slip ring (102), and the output shaft of the motor (104) coincide; The optical axis of the lens of the camera (108) is parallel to the central axis of the flexible clamping and rotating device (101); The laser beam emitted by the laser rangefinder (103) intersects the axis of the throat swab (13) at the head position of the throat swab (13).

5. The throat swab sampling device according to claim 4, characterized in that, The flexible clamping and rotating device (101) includes: a sleeve (Ⅵ), an adapter assembly (Ⅹ) installed at one end of the sleeve (Ⅵ) for connecting to the slip ring (102), a bearing (Ⅳ) installed on the outer cylindrical surface of the sleeve (Ⅵ), a central rod (Ⅲ) with a part fixed inside the sleeve (Ⅵ) and another part extending out of the sleeve (Ⅵ) for transmitting force. A linear bearing (Ⅴ) for supporting and lubricating the central rod (Ⅲ), a circlip (Ⅺ) for fixing the linear bearing (Ⅴ), a pressure sensor (Ⅸ), and a sensor pressure plate (Ⅷ) for transmitting force and pressing the pressure sensor (Ⅸ) against the adapter assembly (Ⅹ) are respectively installed inside the sleeve (Ⅵ). A spring (Ⅶ) for buffering the movement of the central rod (Ⅲ) is installed between the central rod (Ⅲ) and the sensor pressure plate (Ⅷ). A clamping sleeve (Ⅰ) for carrying and fixing the throat swab (13) is installed at one end of the central rod (Ⅲ), and a spring piece (Ⅱ) for pressing the throat swab (13) is installed inside the clamping sleeve (Ⅰ); One end of the clamping sleeve (Ⅰ) close to the throat swab (13) is in the shape of a hollow frustum, and the inner hole diameter of the hollow frustum is the same as the rod diameter of the throat swab (13); the bearing (Ⅳ) is fixed by the inner walls of the lower shell (105) and the upper shell (107); the central rod (Ⅲ), the spring (Ⅶ), the sensor pressure plate (Ⅷ), and the pressure sensor (Ⅸ) are installed in series in sequence.

6. The throat swab sampling device according to claim 4, characterized in that, Also installed in the head chamber are: a baffle (113) for closing the window on the upper shell (107), a mounting plate (110) mounted on the lower shell (105), clamping plates (111) mounted on both sides of the inner wall of the lower shell (105) and pressed and fixed by the mounting plate (110), and a support plate (112) mounted on the upper shell (107); The slip ring (102) and the motor (104) are mounted on the mounting plate (110); the laser rangefinder (103) is mounted in a groove of the clamping plate (111); and the camera (108) is mounted on the support plate (112); The baffle (113) is made of a transparent material; a light assembly (109) for supplementary light is mounted on the support plate (112); the optical axis of the light assembly (109) is parallel to the central axis of the flexible clamping and rotating device (101).

7. The throat swab sampling device according to claim 5, It is characterized in that A through groove (VI-I) is provided on the outer cylindrical surface of one end of the sleeve (VI) close to the adapter assembly (X); a positioning key (III-I) is provided on one end of the center rod (III) close to the spring (VII); the positioning key (III-I) cooperates with the through groove (VI-I) to ensure that when the sleeve (VI) rotates, the center rod (III) is driven to rotate at the same time; a shaft shoulder for axially positioning the bearing (IV) is provided on the outer cylindrical surface of the sleeve (VI).

8. The throat swab sampling device according to claim 5, It is characterized in that An annular groove for fixing the spring (VII) is provided at one end of the sensor pressure plate (VIII), and the size of the annular groove is the same as that of the spring (VII).

9. The throat swab sampling device according to claim 5, It is characterized in that The pressure sensor (IX) is a thin film sensor; a through hole is provided on the adapter component (X) for allowing the pins of the pressure sensor (IX) to pass through.

10. The throat swab sampling device according to claim 5, It is characterized in that In the axial direction of the clamping sleeve (I), the number of the spring pieces (II) in a group is at least 3, and the installation positions of all the spring pieces (II) are collinear; in the radial direction of the clamping sleeve (I), the number of the spring pieces (II) in a group is not less than 3, and the spring pieces (II) in each group are evenly distributed along the circumference.

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