CN115414070A - Throat swab nucleic acid sampling device - Google Patents

Throat swab nucleic acid sampling device Download PDF

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Publication number
CN115414070A
CN115414070A CN202211044389.0A CN202211044389A CN115414070A CN 115414070 A CN115414070 A CN 115414070A CN 202211044389 A CN202211044389 A CN 202211044389A CN 115414070 A CN115414070 A CN 115414070A
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throat swab
base
nucleic acid
driving
arm
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Withdrawn
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CN202211044389.0A
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陈小燕
赵弘杰
赵夏明
牛静
程文轩
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Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
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Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
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Priority to CN202211044389.0A priority Critical patent/CN115414070A/en
Publication of CN115414070A publication Critical patent/CN115414070A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/0045Devices for taking samples of body liquids
    • A61B10/0051Devices for taking samples of body liquids for taking saliva or sputum samples
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25JMANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J18/00Arms
    • B25J18/007Arms the end effector rotating around a fixed point
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12MAPPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
    • C12M33/00Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus
    • C12M33/02Means for introduction, transport, positioning, extraction, harvesting, peeling or sampling of biological material in or from the apparatus by impregnation, e.g. using swabs or loops

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  • Engineering & Computer Science (AREA)
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  • Biomedical Technology (AREA)
  • Wood Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
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  • Sustainable Development (AREA)
  • Animal Behavior & Ethology (AREA)
  • Robotics (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pulmonology (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Pathology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Hematology (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

The invention discloses a throat swab nucleic acid sampling device, which belongs to the technical field of nucleic acid sampling and comprises a base, wherein a base is arranged on the upper side of the base, a rotating assembly is arranged between the base and the base, and two ends of the base are respectively provided with a group of sampling mechanical arms; the sampling mechanical arm comprises a fixed arm and a movable arm in sliding connection with the fixed arm, the fixed arm is connected with the base through a lifting mechanism, and a displacement driving mechanism for driving the movable arm to stretch and retract is arranged in the fixed arm; the front end of the movable arm is provided with a pharynx swab clamping mechanism. The invention has the advantages of convenient use, effective reduction of the fatigue strength of medical staff and reduction of the infection risk of the medical staff.

Description

Throat swab nucleic acid sampling device
Technical Field
The invention relates to the technical field of nucleic acid sampling, in particular to a throat swab nucleic acid sampling device.
Background
Pharynx swab nucleic acid sampling detection is the main means of diagnosing whether new coronavirus infects at present, medical personnel hold the pharynx swab during sampling, stretch into the cotton swab of pharynx swab head by the person's of being detected pharynx back wall sample, in order to ensure the accuracy of sampling, medical personnel still need with the pharynx swab at person's of being detected pharynx back wall reciprocating motion once, the surface of the cotton swab of assurance pharynx swab head can all contact with the region of pharynx back wall, moistly, when being detected a lot of, medical personnel's fatigue strength is very big, medical personnel directly face by the person who is sampled in the sampling process simultaneously, there is the risk of being infected.
Disclosure of Invention
In order to solve the problems in the prior art in the throat swab nucleic acid sampling process, the invention provides the throat swab nucleic acid sampling device which is convenient to use, can effectively reduce the fatigue strength of medical personnel and reduce the infection risk of the medical personnel.
In order to achieve the purpose, the invention adopts the following technical scheme:
a throat swab nucleic acid sampling device comprises a base, wherein a base is arranged on the upper side of the base, a rotating assembly is arranged between the base and the base, and two ends of the base are respectively provided with a group of sampling mechanical arms; the sampling mechanical arm comprises a fixed arm and a movable arm in sliding connection with the fixed arm, the fixed arm is connected with the base through a lifting mechanism, and a displacement driving mechanism for driving the movable arm to stretch and retract is arranged in the fixed arm; the front end of the movable arm is provided with a throat swab clamping mechanism. Two sets of sampling arms symmetry is installed on the base, one of them sampling arm is in the face of by the person who samples, another sampling arm is in the face of medical personnel, medical personnel inserts the handle end of pharynx swab fixture in with the pharynx swab, rotating assembly drives 180 degrees backs of base rotation, by the head of person who samples and lean on the bearing ware and fix a position, displacement drive mechanism drives the digging arm and moves forward, the cotton swab forward motion of pharynx swab head stretches into by the oral cavity of person who samples and reachs the pharynx back wall and sample (the in-process of sampling, medical personnel adorn the pharynx swab in the pharynx swab fixture of another sampling arm), the digging arm retraction after the sampling, rotating assembly rotates 180 degrees again, medical personnel take off the pharynx swab after the sampling, treat the pharynx swab of sampling in the reload, so reciprocal cycle work, realize continuous nucleic acid sampling operation, medical personnel and by the person can separate through the glass board (leave the flexible hole of digging arm on the glass board can), very big risk that medical personnel infect has been reduced, and medical personnel's fatigue strength is reduced, can set up many sets of sampling point, the doctor just can be to a plurality of sampling efficiency is greatly improved to the person who samples simultaneously.
Preferably, the rotating assembly is an electrically controlled rotating table, the lifting mechanism comprises a vertical guide rod fixed on the base and a lifting seat connected with the vertical guide rod in a sliding manner, a supporting plate is arranged at the upper end of the vertical guide rod, and an electric cylinder used for driving the lifting seat to slide is arranged on the supporting plate; and two sides of the lifting mechanism on the base are provided with protective plates. The lifting mechanism can adjust the height of the sampling mechanical arm.
Preferably, the displacement driving mechanism comprises a connecting plate fixed at two ends inside the fixed arm and a guide rod fixed with the connecting plate, a sliding seat is arranged on the guide rod, the inner end of the movable arm is connected with the sliding seat, a screw rod distributed in parallel with the guide rod is arranged on the sliding seat, the screw rod penetrates through the sliding seat and is in threaded connection with the sliding seat, and a motor for driving the screw rod to rotate is arranged at one end of the screw rod. The motor drives the screw rod to rotate, so that the movable arm stretches out and draws back.
Preferably, an elliptical trajectory motion mechanism is provided between the movable arm and the throat swab holding mechanism, and the throat swab holding mechanism moves along an elliptical trajectory when the elliptical trajectory motion mechanism is operated. The elliptical track motion mechanism can effectively simulate the action of manual sampling, the sampling range of a cotton swab on the pharynx swab is large (the existing sampling equipment usually adopts axial rotation of the pharynx swab), and the sampling accuracy is improved.
Preferably, the elliptic motion mechanism comprises a longitudinal slide block, a transverse slide block, a driving shaft for driving the longitudinal slide block and the transverse slide block to synchronously move, and a driving motor for driving the driving shaft to rotate, and the throat swab clamping mechanism is fixed at the outer end of the transverse slide block; the outer end of the movable arm is provided with a groove, the longitudinal sliding block is positioned in the groove and longitudinally slides in the groove, a sliding chute which is transversely distributed is arranged in the longitudinal sliding block, and the transverse sliding block is positioned in the sliding chute and transversely slides in the sliding chute; the inner side of the longitudinal sliding block is provided with a transverse groove, the inner side of the transverse sliding block is provided with a longitudinal groove, the driving shaft comprises a main shaft and a first eccentric shaft arranged at the end part of the main shaft, the outer end of the first eccentric shaft is provided with a second eccentric shaft, the first eccentric shaft extends into the transverse groove, and the second eccentric shaft extends into the longitudinal groove; when the driving motor drives the driving shaft to rotate, the first eccentric shaft drives the longitudinal slide block to move longitudinally, the second eccentric shaft drives the transverse slide block to move transversely, and the combined motion of the transverse slide block and the longitudinal slide block enables the throat swab clamping mechanism to move in an elliptic track. The drive shaft drives the transverse sliding block and the longitudinal sliding block to synchronously move to realize elliptical track motion, the whole structure is compact and stable, and the long edge and the short edge of an ellipse can be determined by setting the eccentricity of the first eccentric shaft and the second eccentric shaft.
Preferably, the pharynx swab clamping mechanism comprises a connecting seat and a connecting cylinder, the connecting seat is connected with the longitudinal sliding block into a whole, the connecting cylinder is connected with the outer end of the connecting seat, a connecting sleeve is arranged in the connecting cylinder, a pharynx swab clamping assembly is arranged in the connecting sleeve, an end cover is arranged at the outer end of the connecting cylinder, and a conical guide sleeve is arranged at the center of the end cover. The handle end of the throat swab is inserted into the conical guide sleeve and then permeates into the throat swab clamping component to be clamped.
Preferably, the throat swab clamping component comprises a positioning spring and a clamping sleeve arranged in the center of the positioning spring, and a plurality of limiting columns clamped in the positioning spring are arranged on the outer surface of the clamping sleeve; be equipped with the flexible lantern ring in the centre gripping cover, the inner wall of the flexible lantern ring is equipped with a plurality of sand grips that are used for chucking pharynx swab the inner, the outer end of centre gripping cover is equipped with and is used for the spacing retaining ring of the flexible lantern ring. The flexible lantern ring in the grip cover is inserted to the handle end of pharynx swab fixes a position, and the grip cover is through location spring elastic positioning, makes the cotton swab of pharynx swab outer end and the contact of pharynx back wall be elastic contact like this, and the difficult damage pharynx back wall is used safelyr.
Preferably, the positioning spring comprises two sections of conical springs with small diameter ends distributed oppositely, the small diameter ends of the two sections of conical springs are connected with column springs, the clamping sleeve is clamped on the column springs, and the large diameter ends of the conical springs are clamped with the inner walls of the two ends of the connecting sleeve. The positioning spring of this kind of specific construction can take place to deflect when making pharynx swab outer end side direction atress, can reset again when relieving the atress to make the pharynx swab safer when the wall removes behind the pharynx, be difficult for damaging the wall behind the pharynx.
Preferably, the connecting sleeve is rotatably connected with the connecting cylinder, a transmission shaft is arranged at the inner end of the connecting sleeve, the end part of the transmission shaft penetrates through the connecting seat and extends into the longitudinal groove, a gear is fixed at the inner end of the transmission shaft, a connecting block rotatably connected with the second eccentric shaft is further arranged in the longitudinal groove in a sliding manner, and a rack meshed with the gear is arranged on the connecting block; when the connecting block slides in the longitudinal groove, the rack drives the gear to rotate. Pharynx swab is along oval orbit motion in-process, the connecting block can slide from top to bottom in the longitudinal groove, and then it slides to drive the rack, when the rack remove to with gear engagement time can drive gear revolve an angle, gear revolve can drive the adapter sleeve and rotate, finally make pharynx swab also take place to rotate, pharynx swab is when doing oval orbit motion promptly, also can take place certain rotation, thereby make the body fluid of collection pharynx back wall that pharynx swab's cotton swab can be better, it is more stable to sample.
As preferred, the outer pot head of digging arm is equipped with the protective cover, be equipped with the ellipse on the protective cover and dodge the hole, the ellipse dodges the downthehole flexible spacing block that is fixed with, the connecting seat passes the flexible spacing block. After the pharynx swab is sampled and when the pharynx swab is taken down, medical personnel need to clean and disinfect the pharynx swab clamping mechanism, and when the pharynx swab is cleaned and disinfected, the flexible isolation sheet can prevent the disinfectant from entering the movable arm.
Therefore, the medical nursing bed has the advantages of being convenient to use, capable of effectively reducing the fatigue strength of medical staff and reducing the infection risk of the medical staff.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the protection plate of fig. 1 with the protection plate removed.
Fig. 3 is a schematic structural diagram of a sampling robot arm.
Fig. 4 is an exploded view of the sampling robot arm.
Fig. 5 is a schematic view of the connection of the movable arm to the pharyngeal swab holding mechanism.
Fig. 6 is an exploded view of fig. 5.
Fig. 7 is a schematic diagram of the connection between the elliptical orbit motion mechanism and the pharynx swab clamping mechanism.
Fig. 8 is a schematic view of another view angle of fig. 7.
Fig. 9 is a cross-sectional view of fig. 8.
Fig. 10 is an exploded view of fig. 8.
Fig. 11 is a schematic connection diagram of the longitudinal sliding block, the connecting base, the connecting cylinder and the connecting sleeve.
Fig. 12 is an exploded view of the pharyngeal swab holding mechanism.
In the figure: the device comprises a base 1, a base 2, a protective plate 200, a rotating assembly 3, a sampling mechanical arm 4, a fixed arm 40, a movable arm 41, a groove 410, a displacement driving mechanism 42, a connecting plate 420, a guide rod 421, a sliding seat 422, a screw 423, a motor 424, a lifting mechanism 5, a vertical guide rod 50, a lifting seat 51, a supporting plate 52, an electric cylinder 53, a throat swab clamping mechanism 6, a connecting seat 60, a connecting cylinder 61, a connecting sleeve 62, a throat swab clamping assembly 63, a positioning spring 630, a conical spring 6300, a column spring 6301, a clamping sleeve 631, a limiting column 632, a flexible sleeve 633, a convex strip 6330, a limiting check ring 634, an end cover 64, a conical guide sleeve 640, a transmission shaft 65, a gear 66, a connecting block 67, a rack 68, an elliptical track motion mechanism 7, a longitudinal sliding block 70, a sliding rod 700, a sliding chute 701, a transverse groove 702, a transverse sliding block 71, a longitudinal groove 710, a driving shaft 72, a main shaft 720, a first eccentric shaft 721, a second eccentric shaft 722, a driving motor 73, a protective cover 8, an elliptical relief hole 80, a flexible isolating sheet 81, a throat swab 9 and a glass plate 10.
Detailed Description
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1-5, a pharyngeal swab nucleic acid sampling device comprises a base 1, a base 2 is arranged on the upper side of the base 1, a rotating assembly 3 is arranged between the base 2 and the base 1, and a group of sampling mechanical arms 4 are respectively arranged at two ends of the base 2; the sampling mechanical arm 4 comprises a fixed arm 40 and a movable arm 41 connected with the fixed arm in a sliding manner, the fixed arm is connected with the base through a lifting mechanism 5, and a displacement driving mechanism 42 for driving the movable arm to stretch and retract is arranged in the fixed arm 40; the front end of the movable arm is provided with a throat swab clamping mechanism 6; the rotating assembly 3 is an electric control rotating platform, the lifting mechanism 5 comprises a vertical guide rod 50 fixed on the base and a lifting seat 51 connected with the vertical guide rod in a sliding manner, a supporting plate 52 is arranged at the upper end of the vertical guide rod, an electric cylinder 53 used for driving the lifting seat to slide is arranged on the supporting plate 52, and protective plates 200 are arranged on the two sides of the base 2 located on the lifting mechanism.
The displacement driving mechanism 42 includes a connecting plate 420 fixed at two ends of the inside of the fixed arm, and a guide rod 421 fixed with the connecting plate, a sliding seat 422 is provided on the guide rod, the inner end of the movable arm 41 is connected with the sliding seat, a screw 423 distributed in parallel with the guide rod is provided on the sliding seat 422, the screw passes through the sliding seat and is in threaded connection with the sliding seat, and a motor 424 for driving the screw to rotate is provided at one end of the screw.
An elliptical orbit motion mechanism 7 is arranged between the movable arm 41 and the pharynx swab clamping mechanism 6, and when the elliptical orbit motion mechanism acts, the pharynx swab clamping mechanism moves according to an elliptical orbit.
As shown in fig. 6-10, the elliptical orbit motion mechanism 7 comprises a longitudinal slider 70, a transverse slider 71, a driving shaft 72 for driving the longitudinal slider and the transverse slider to move synchronously, and a driving motor 73 for driving the driving shaft to rotate, wherein the pharynx swab clamping mechanism 6 is fixed at the outer end of the transverse slider 71; the outer end of the movable arm 41 is provided with a groove 410, the longitudinal sliding block 70 is positioned in the groove, two ends of the longitudinal sliding block longitudinally slide in the groove through a sliding rod 700, a sliding groove 701 which is transversely distributed is arranged in the longitudinal sliding block 70, and the transverse sliding block 71 is positioned in the sliding groove 701 and transversely slides in the sliding groove; a transverse groove 702 communicated with the sliding groove is formed in the inner side of the longitudinal sliding block 70, a longitudinal groove 710 is formed in the inner side of the transverse sliding block 71, the driving shaft 72 comprises a main shaft 720 and a first eccentric shaft 721 arranged at the end part of the main shaft, a second eccentric shaft 722 is arranged at the outer end of the first eccentric shaft, the first eccentric shaft extends into the transverse groove, and the second eccentric shaft extends into the longitudinal groove; when the driving motor drives the driving shaft to rotate, the first eccentric shaft drives the longitudinal sliding block to move longitudinally, the second eccentric shaft drives the transverse sliding block to move transversely, and the transverse sliding block and the longitudinal sliding block move in a combined mode to enable the throat swab clamping mechanism to move in an elliptical track.
As shown in fig. 9-12, the throat swab clamping mechanism 6 includes a connecting seat 60 integrally connected with the longitudinal sliding block, and a connecting cylinder 61 connected with an outer end of the connecting seat, a connecting sleeve 62 is disposed in the connecting cylinder, a throat swab clamping assembly 63 is disposed in the connecting sleeve, an end cover 64 is disposed at an outer end of the connecting cylinder, a tapered guide sleeve 640 is disposed at a center of the end cover 64, an avoiding slot hole transversely distributed is disposed on an outer side surface of the longitudinal sliding block 70, and the connecting seat passes through the avoiding slot hole and extends out of the longitudinal sliding block;
the throat swab clamping assembly 63 comprises a positioning spring 630 and a clamping sleeve 631 arranged in the center of the positioning spring, and a plurality of limiting columns 632 clamped in the positioning spring are arranged on the outer surface of the clamping sleeve 631; a flexible sleeve ring 633 is arranged in the clamping sleeve 631, a plurality of protruding strips 6330 used for clamping the throat swab handle end are arranged on the inner wall of the flexible sleeve ring, and a limiting retainer ring 634 used for limiting the flexible sleeve ring is arranged at the outer end of the clamping sleeve 631; the positioning spring 630 comprises two conical springs 6300 with small diameter ends distributed oppositely, the small diameter ends of the two conical springs are connected with column springs 6301, the clamping sleeve is clamped on the column springs, and the large diameter ends of the conical springs are clamped with the inner walls of the two ends of the connecting sleeve.
The connecting sleeve 62 is rotatably connected with the connecting cylinder 61, the inner end of the connecting sleeve 62 is provided with a transmission shaft 65, the end part of the transmission shaft 65 penetrates through the connecting seat and extends into the longitudinal groove 710, a gear 66 is fixed at the inner end of the transmission shaft, a connecting block 67 rotatably connected with the second eccentric shaft is also slidably arranged in the longitudinal groove 710, and a rack 68 meshed with the gear is arranged on the connecting block; when the connecting block slides in the longitudinal groove, the rack drives the gear to rotate.
As shown in fig. 3, a protecting cover 8 is sleeved on the outer end of the movable arm 41, an oval avoiding hole 80 is formed in the protecting cover 8, a flexible spacer 81 is fixed in the oval avoiding hole, and the connecting seat 60 penetrates through the flexible spacer.
The principle of the invention is as follows with reference to the attached drawings: as shown in fig. 1, two sets of sampling mechanical arms are symmetrically installed on a base, wherein one sampling mechanical arm (left sampling mechanical arm) faces a person to be sampled, the other sampling mechanical arm (right sampling mechanical arm) faces a medical worker (or robot), the medical worker inserts the handle end of a pharyngeal swab 9 into a pharyngeal swab clamping mechanism, after a rotating component drives the base to rotate 180 degrees, the head of the person to be sampled leans against a supporter (the supporter is the prior art, and is usually used for positioning the head of a human body in dental and ophthalmic examinations in hospitals, the height of the human body can be adjusted, and the height of the sampling mechanical arms can be adjusted by a height adjusting mechanism in the structure according to the height adaptability of the supporter; the displacement driving mechanism drives the movable arm to move forwards, the cotton swab at the head of the pharynx swab 9 moves forwards, extends into the oral cavity of a person to be sampled and reaches the rear wall of the pharynx to be sampled, the pharynx swab clamping mechanism simulates the action of manual sampling of medical staff to move in an elliptical track in the sampling process, and meanwhile, when the pharynx swab clamping mechanism moves to the meshing of the rack and the gear, the pharynx swab can also rotate automatically, so that the cotton swab at the front end of the pharynx swab can stably sample the throat area; the end part of the throat swab is in elastic contact with the rear pharyngeal wall in the movement process, and the rod of the throat swab can also deflect in a self-adaptive manner when the side surface of the cotton swab is subjected to resistance, so that the rear pharyngeal wall is prevented from being stabbed in the sampling process, and the throat swab is safer to use; in-process of sampling, medical personnel loads on new pharynx swab at another sampling arm, the digging arm retraction after the sampling, rotatory 180 degrees again of rotating assembly, medical personnel takes off the pharynx swab after the sampling, the pharynx swab of waiting to sample is loaded on to the disinfection of pharynx swab fixture back again, so reciprocating cycle work, realize continuous nucleic acid sampling operation, medical personnel and by can separate through glass board 10 between the sampler (leave the flexible hole of dodging of digging arm on the glass board can), very big reduction the risk that medical personnel infected, and reduce medical personnel's fatigue strength, can set up many sets of sampling device at the nucleic acid sampling point, a doctor just can sample to a plurality of people simultaneously, very big improvement sampling efficiency.
In the description of the present invention, it should be understood that the directions or positional relationships indicated by the upper, lower, left, right, inner, outer, one end, the other end, etc. are based on the directions or positional relationships shown in the drawings, and are only for the sake of clarity and convenience of describing the technical solution of the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be configured and operated in a specific direction, and cannot be understood as limiting the present invention.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims (10)

1. A throat swab nucleic acid sampling device comprises a base and is characterized in that a base is arranged on the upper side of the base, a rotating assembly is arranged between the base and the base, and two ends of the base are respectively provided with a group of sampling mechanical arms; the sampling mechanical arm comprises a fixed arm and a movable arm in sliding connection with the fixed arm, the fixed arm is connected with the base through a lifting mechanism, and a displacement driving mechanism for driving the movable arm to stretch and retract is arranged in the fixed arm; the front end of the movable arm is provided with a throat swab clamping mechanism.
2. A throat swab nucleic acid sampling device according to claim 1, wherein the rotating assembly is an electrically controlled rotating table, the lifting mechanism comprises a vertical guide rod fixed on the base, and a lifting seat slidably connected with the vertical guide rod, a support plate is provided at the upper end of the vertical guide rod, and an electric cylinder for driving the lifting seat to slide is provided on the support plate; and two sides of the lifting mechanism on the base are provided with protective plates.
3. A throat swab nucleic acid sampling device according to claim 1 or 2, wherein the displacement driving mechanism comprises a connecting plate fixed at two ends of the inside of the fixed arm, and a guide rod fixed to the connecting plate, wherein a sliding seat is provided on the guide rod, the inner end of the movable arm is connected to the sliding seat, a screw rod arranged in parallel with the guide rod is provided on the sliding seat, the screw rod passes through the sliding seat and is in threaded connection with the sliding seat, and a motor for driving the screw rod to rotate is provided at one end of the screw rod.
4. A throat swab nucleic acid sampling device according to claim 1, wherein an elliptical trajectory motion mechanism is provided between the movable arm and the throat swab holding mechanism, and wherein the throat swab holding mechanism moves along an elliptical trajectory when the elliptical trajectory motion mechanism is operated.
5. The pharyngeal swab nucleic acid sampling device according to claim 4, wherein the elliptical orbit motion mechanism comprises a longitudinal slide block, a transverse slide block, a driving shaft for driving the longitudinal slide block and the transverse slide block to move synchronously, and a driving motor for driving the driving shaft to rotate, wherein the pharyngeal swab clamping mechanism is fixed at the outer end of the transverse slide block; the outer end of the movable arm is provided with a groove, the longitudinal sliding block is positioned in the groove and longitudinally slides in the groove, the longitudinal sliding block is internally provided with a transversely distributed sliding chute, and the transverse sliding block is positioned in the sliding chute and transversely slides in the sliding chute; the inner side of the longitudinal sliding block is provided with a transverse groove, the inner side of the transverse sliding block is provided with a longitudinal groove, the driving shaft comprises a main shaft and a first eccentric shaft arranged at the end part of the main shaft, the outer end of the first eccentric shaft is provided with a second eccentric shaft, the first eccentric shaft extends into the transverse groove, and the second eccentric shaft extends into the longitudinal groove;
when the driving motor drives the driving shaft to rotate, the first eccentric shaft drives the longitudinal slide block to move longitudinally, the second eccentric shaft drives the transverse slide block to move transversely, and the combined motion of the transverse slide block and the longitudinal slide block enables the throat swab clamping mechanism to move in an elliptic track.
6. A throat swab nucleic acid sampling device according to claim 5, wherein the throat swab clamping mechanism comprises a connecting seat integrally connected with the longitudinal sliding block and a connecting cylinder connected with the outer end of the connecting seat, a connecting sleeve is arranged in the connecting cylinder, a throat swab clamping assembly is arranged in the connecting sleeve, an end cover is arranged at the outer end of the connecting cylinder, and a tapered guide sleeve is arranged in the center of the end cover.
7. A throat swab nucleic acid sampling device according to claim 6, wherein the throat swab clamping assembly comprises a positioning spring and a clamping sleeve arranged in the center of the positioning spring, and a plurality of limiting columns clamped in the positioning spring are arranged on the outer surface of the clamping sleeve; the utility model discloses a throat swab, including the holding cover, be equipped with the flexible lantern ring in the holding cover, the inner wall of the flexible lantern ring is equipped with a plurality of sand grips that are used for chucking throat swab handle end, the outer end of holding cover is equipped with and is used for the spacing retaining ring of the flexible lantern ring.
8. A throat swab nucleic acid sampling device according to claim 7, wherein the positioning spring comprises two conical springs with small diameter ends distributed oppositely, the small diameter ends of the two conical springs are connected with column springs, the clamping sleeve is clamped on the column springs, and the large diameter ends of the conical springs are clamped with the inner walls of the two ends of the connecting sleeve.
9. A throat swab nucleic acid sampling device according to claim 6, 7 or 8, wherein the connecting sleeve is rotatably connected with the connecting cylinder, the inner end of the connecting sleeve is provided with a transmission shaft, the end of the transmission shaft penetrates through the connecting seat and extends into the longitudinal groove, the inner end of the transmission shaft is fixed with a gear, the longitudinal groove is further slidably provided with a connecting block rotatably connected with the second eccentric shaft, and the connecting block is provided with a rack meshed with the gear; when the connecting block slides in the longitudinal groove, the rack drives the gear to rotate.
10. A throat swab nucleic acid sampling device according to claim 6, wherein the outer end of the movable arm is sleeved with a protective cover, the protective cover is provided with an oval avoiding hole, a flexible spacer is fixed in the oval avoiding hole, and the connecting seat penetrates through the flexible spacer.
CN202211044389.0A 2022-08-30 2022-08-30 Throat swab nucleic acid sampling device Withdrawn CN115414070A (en)

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CN202211044389.0A CN115414070A (en) 2022-08-30 2022-08-30 Throat swab nucleic acid sampling device

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116269524A (en) * 2023-05-24 2023-06-23 深圳市华瑞康生物医疗器械科技有限公司 Portable nasopharynx swab sampling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116269524A (en) * 2023-05-24 2023-06-23 深圳市华瑞康生物医疗器械科技有限公司 Portable nasopharynx swab sampling device
CN116269524B (en) * 2023-05-24 2023-07-18 深圳市华瑞康生物医疗器械科技有限公司 Portable nasopharynx swab sampling device

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