CN213551955U

CN213551955U - Throat swab sampling device

Info

Publication number: CN213551955U
Application number: CN202022072179.5U
Authority: CN
Inventors: 孙文熙; 刘博�
Original assignee: Shenyang Shuchi Medical Technology Co ltd
Current assignee: Shenyang Shuchi Medical Technology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-06-29
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a medical instrument, in particular to pharynx swab sampling device. The pharynx swab clamping device comprises a base, a rotary driving mechanism and a crank slider mechanism, wherein the rotary driving mechanism and the crank slider mechanism are arranged on the base; the slider-crank mechanism is connected with the rotary driving mechanism, and the throat swab is connected with the slider-crank mechanism; the crank-slider mechanism is used for driving the throat swab to swing and enabling the tail end of the throat swab to continuously move on an elliptical track. The utility model discloses can collect patient's pharynx and tonsil reliably and get the secretion, can reduce the stimulation to patient's pharynx effectively again, reduce patient's pharynx reaction degree.

Description

Throat swab sampling device

Technical Field

The utility model relates to a medical instrument, in particular to pharynx swab sampling device.

Background

Pharyngeal and tonsillar secretions collected for bacterial culture or viral isolation are diagnostic methods often used to examine disease. The normal oral cavity normal flora is cultured in the angina of a normal person without the growth of pathogenic bacteria. The bacteria in the pharynx come from the outside, and are not ill under normal conditions, but the bacteria may cause diseases due to the decrease of systemic or local resistance of the body and other external factors, such as infection. The pharyngeal swab bacterial culture can collect pharyngeal and tonsil secretions and separate pathogenic bacteria, and is helpful for diagnosing diphtheria, suppurative tonsillitis, acute pharyngolaryngitis and other diseases.

On the other hand, throat swab nucleic acid detection is a main index for diagnosing novel coronavirus infection. The throat swab specimen is a medical cotton swab, a small amount of secretion is dipped in the throat (rear pharyngeal wall) of a human body, the taken sample is the throat swab specimen, and the virus type can be conveniently, quickly and accurately detected through the throat swab in order to detect the virus type of the respiratory disease.

However, in the process of taking a sample, because the physician has improper force or excessive collecting action, the physician is very easy to touch the palatopharyngeal arch (two sides of the back wall of the pharynx) of the patient, which causes the patient to have a strong pharyngeal reaction, causes discomfort to the patient and prevents the normal operation.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a pharynx swab sampling device, which can not only collect the pharynx and tonsil of the patient and take the secretion, but also reduce the stimulation to the pharynx of the patient, and reduce the pharynx reaction degree of the patient.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a pharyngeal swab collection device, comprising: the pharynx swab clamping device comprises a base, a rotary driving mechanism and a crank slider mechanism, wherein the rotary driving mechanism and the crank slider mechanism are arranged on the base; the slider-crank mechanism is connected with the rotary driving mechanism, and the throat swab is connected with the slider-crank mechanism; the crank-slider mechanism is used for driving the pharynx swab to swing and enabling the tail end of the pharynx swab to continuously move on an elliptic track.

The rotary driving mechanism is arranged in the inner cavity of the base; the rotary driving mechanism comprises a motor and a power supply device, the power supply device is connected with the motor, and a motor shaft of the motor is connected with the slider-crank mechanism.

The power supply device comprises a power supply, a power supply box, a connecting wire and a switch, wherein the power supply is arranged in the power supply box and is connected with the switch and the motor through the connecting wire to form a closed circuit; the switch extends out of a switch hole formed in the base.

The crank sliding block mechanism comprises a crank, a movable connecting rod and a sliding block, wherein one end of the crank is connected with the motor shaft, and the other end of the crank is hinged with one end of the movable connecting rod; the other end of the movable connecting rod is hinged with the sliding block; the sliding block is connected with the base in a sliding manner; the pharynx swab is connected with the movable connecting rod.

The crank sliding block mechanism comprises a rotary table, a movable connecting rod and a sliding block, wherein the rotary table is connected with the motor shaft, one end of the movable connecting rod is hinged with the position of the rotary table, which deviates from the central shaft, and the other end of the movable connecting rod is hinged with the sliding block; the sliding block is connected with the base in a sliding manner; the pharynx swab is connected with the movable connecting rod.

The base is a hollow cylindrical structure, an extending part is arranged at the upper end of the base along the horizontal direction, a sliding groove is formed in the extending part, and the sliding block is in sliding fit with the sliding groove.

The sliding groove is a straight groove arranged along the direction far away from or close to the motor shaft.

The throat swab and the movable connecting rod are parallel to each other and are elastically connected.

The movable connecting rod is provided with a bayonet, and the pharynx swab is clamped with the movable connecting rod.

An upper cover is arranged on the outer side of the crank sliding block mechanism and connected with the base.

The utility model discloses an advantage and beneficial effect do: the utility model discloses a pharynx swab sampling device can let pharynx swab tip continuously move on fixed track to through the fixed position of adjusting the pharynx swab, can make the track coincide with the shape of patient's oral cavity pharynx back wall, make the tip orbit of pharynx swab predictable like this, under the circumstances that guarantees patient head stability, can replace the doctor to gather patient pharynx secretion effectively. Meanwhile, as the acquisition path of the equipment is fixed, after the width of the palatopharyngeal arch of the patient is determined, the position of the pharyngeal swab can be adjusted, so that the width of the acquisition path is slightly smaller than the width of the palatopharyngeal arch, and the palatopharyngeal arch of the patient cannot be touched due to misoperation, and the discomfort of the patient is reduced.

Drawings

In order to illustrate more clearly the solution of the embodiments of the present invention, the drawings that are needed for describing the embodiments will be briefly introduced, obviously, the drawings in the following description are only some embodiments of the present invention, and are not considered as limiting the present invention, and in the whole drawings, the same reference signs represent the same parts.

Fig. 1 is a schematic structural view of a pharyngeal swab sampling device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a pharyngeal swab sampling device according to another embodiment of the present invention;

fig. 3 is a schematic view of the working principle of the pharyngeal swab sampling device of the present invention.

In the figure: 1 is a base, 102 is a sliding groove, 2 is a motor, 3 is a power supply device, 4 is a switch, 5 is a crank, 6 is a movable connecting rod, 7 is a sliding block, 8 is a throat swab, 9 is a motor shaft, 10 is a rotating shaft, 11 is an upper cover, 12 is a rotating disc, M is a near end, and N is a far end.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "bottom", "length", "inner", "distal", "proximal", and the like, refer to positional or orientational relationships and are used merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1, an embodiment of the present invention provides a pharynx swab collecting device, which includes a pharynx swab holding device and a pharynx swab 8, wherein the pharynx swab holding device includes a base 1, and a rotation driving mechanism and a slider-crank mechanism disposed on the base 1, wherein the rotation driving mechanism is configured to provide a rotation driving force; the slider-crank mechanism is connected with the rotary driving mechanism, and the throat swab 8 is connected with the slider-crank mechanism; the slider-crank mechanism is used to drive the end of the pharyngeal swab 8 in continuous motion on an elliptical trajectory.

In the embodiment of the present invention, as shown in fig. 1, the rotation driving mechanism is disposed in the inner cavity of the base 1; specifically, the rotation driving mechanism comprises a motor 2 and a power supply device 3, the power supply device 3 is connected with the motor 2, and a motor shaft 9 of the motor 2 is connected with the slider-crank mechanism. The power supply device 3 comprises a power supply, a power supply box, a connecting lead and a switch 4, wherein the power supply is arranged in the power supply box and is connected with the switch 4 and the motor 2 through the connecting lead to form a closed circuit; the switch 4 extends out of a switch hole arranged on the base 1 and can be pulled from the outside to control the rotation and stop of the motor 2. The power supply uses a rechargeable lithium battery to achieve the purposes of repeated use and resource saving.

In the embodiment of the present invention, as shown in fig. 1, the crank-slider mechanism includes a crank 5, a movable connecting rod 6 and a slider 7, wherein one end of the crank 5 is fixedly connected to a motor shaft 9, the other end is hinged to one end of the movable connecting rod 6 through a rotating shaft 10, and the other end of the movable connecting rod 6 is hinged to the slider 7; the sliding block 7 is connected with the base 1 in a sliding way; the pharynx swab 8 is connected with the movable connecting rod 6. The motor 2 drives the crank 5 to rotate, so that the movable connecting rod 6 can perform reciprocating swing in the plane. The throat swab 8 is fixed to the movable link 6 and swings with the movable link 6, so that the throat swab collecting end forms an elliptical trajectory. In the swinging process of the pharynx swab 8, the pharynx swab extends into the oral cavity of a patient, and the collection end part of the pharynx swab is contacted with the rear wall of the pharynx of the patient, so that collection can be completed.

The embodiment of the utility model provides an in, base 1 is hollow cylindrical structure, and its upper end is equipped with the extension along the horizontal direction, and the upper surface of extension is equipped with spout 102, slider 7 and spout 102 sliding fit. The base 1 has a flat upper surface, the shape of the rest surface can be changed along with the shape of the clamping device or the hand, and the base 1 can be fixed on the specific clamping device or can be held by the hand. Specifically, a through hole (switch hole) is formed in the side surface of the base 1, and a cavity is formed inside the through hole. The motor 2 and the power supply device 3 are arranged in a cavity of the base 1. Switch 4 stretches out from the side through-hole of base 1, processes on the switch 4 surface skid-proof friction decorative pattern, the operation of being convenient for. Switch 4 has two gears: on, Off. When the switch 4 is turned Off, the motor 2 is stopped; when the switch is On, the motor 2 rotates. The upper plane of the base 1 is provided with a through hole for passing through the motor shaft 9, the through hole is in clearance fit with the motor shaft 9, and the motor 2 extends out of the motor shaft 9 from the through hole and then is fixed on the base 1.

It should be noted that the switch 4 may have three positions, i.e., forward rotation, off rotation, and reverse rotation, for controlling the forward rotation, the stall rotation, and the reverse rotation of the motor 2, respectively, corresponding to the forward rotation, the stall rotation, and the reverse rotation of the far end of the throat swab 8.

Further, the sliding groove 102 is a straight groove disposed in a direction away from or close to the motor shaft 9, i.e., the sliding groove 102 is formed along the distal and proximal ends. The crank 5 rotates to drive the slide block 7 to do linear motion in the sliding groove 102 through the movable connecting rod 6. The sliding groove 102 may be directly machined on the base 1, or may be separately machined and then fixed to the base 1.

Further, the pharyngeal swab 8 and the movable link 6 are parallel to each other and are resiliently connected. That is, a device capable of adding a buffering force between the pharyngeal swab 8 and the movable connecting rod 6, such as a spring for providing mechanical buffering, a magnetic field for providing electromagnetic buffering and the like, can enable the pharyngeal swab to slowly contact the pharyngeal backwall of the patient, thereby reducing the discomfort of the patient. Or the movable connecting rod 6 is provided with a bayonet, and the throat swab 8 is fixed on the movable connecting rod 6 in a clamping way. In this way, the extension length of the pharynx swab 8, namely the far-end motion track of the pharynx swab 8 can be adjusted at any time. In addition, the length of the movable linkage 6 can be adjusted to change the end trajectory width of the pharyngeal swab 8.

Furthermore, an upper cover is arranged on the outer side of the crank block mechanism and connected with the base 1. The upper cover inner surface can be used to constrain the freedom of movement of the crank 5, the movable link 6 and the slider 7 in the vertical direction.

As shown in fig. 2, another embodiment of the present invention provides a throat swab collecting device, which has a structure substantially the same as the first embodiment, except that the slider-crank mechanism comprises a rotating disc 12, a movable connecting rod 6 and a slider 7, wherein the rotating disc 12 is connected to the motor shaft 9, one end of the movable connecting rod 6 is hinged to the rotating disc 12 at a position deviating from the central axis, and the other end is hinged to the slider 7; the sliding block 7 is connected with the base 1 in a sliding way; the pharynx swab 8 is connected with the movable connecting rod 6. The motor 2 drives the rotary disc 12 to rotate, and the rotary disc 12 drives the sliding block 7 to do linear motion in the sliding groove 102 through the movable connecting rod 6.

The utility model discloses a theory of operation is:

as shown in fig. 3, the pharyngeal swab 8 is secured to the movable link 6; when the switch 4 is turned to an On state, the motor 2 starts to rotate to drive the crank 5 to rotate, so that the movable connecting rod 6 is driven to swing in a plane, and the throat swab 8 fixed On the movable connecting rod 7 also swings left and right. The distal end of the pharyngeal swab 8 moves in an elliptical trajectory.

When in use, the motion track and the length of the pharynx swab 8 are determined according to the width of the palatopharyngeal arch and the exposed width of the posterior pharynx of the patient according to the individual difference of the patient before the collection of the pharynx swab, so that the pharynx swab 8 is fixed at the proper position on the movable connecting rod 6. The longer the extension length of the throat swab 8 is, the wider the elliptical motion track of the far end of the throat swab 8 is, the longer the scanning distance is during collection, and the more reliable the collection result is; the shorter the protruding length of the pharyngeal swab 8, the narrower the elliptical motion trajectory of the distal end of the pharyngeal swab 8, the less likely it will be to contact the patient's palatopharyngeal arch, and the less likely it will cause a strong pharyngeal response by the patient. Then, the far end of the throat swab is inserted into a proper position of the oral cavity of a patient, the switch 4 is pulled, the power supply drives the motor 2, the motor shaft 9 of the motor 2 drives the crank 5, and the crank 5 drives the movable connecting rod 6 and the sliding block 7 to reciprocate, so that the end part of the throat swab 8 fixed on the movable connecting rod 6 is driven to move according to an elliptical track, as shown in fig. 3. Wait for the pharyngeal swab 8 to automatically stroke several times across the patient's posterior pharyngeal wall. After collection is finished, the switch 4 is pulled to stop the motor 2, the device is taken out of the patient, and the throat swab 8 is taken down for subsequent operation. Thus, the holding device can be repeatedly used, the cost is saved, meanwhile, the cleanliness is high, and the situation of secondary pollution does not exist in the throat swab 8.

Further, the fixed position of the pharynx swab 8 on the movable connecting rod 6 can be adjusted before collection, namely the position of the pharynx swab 8 can move back and forth on the movable connecting rod 6, and then the motion track width of the pharynx swab 8 can be changed to adapt to the shape and the size of the posterior pharynx wall of different patients. The more the motion trail of the collection end of the pharyngeal swab 8 is consistent with the shape of the posterior pharyngeal wall of the patient, the smaller the width of the motion trail is compared with the width of the palatopharyngeal arch, and the less the pharyngeal response of the patient is caused.

To sum up, the utility model provides a pharynx swab collection system, this kind of device simple structure, the tip orbit of pharynx swab is predictable, can let pharynx swab tip continuously move on fixed orbit to through the fixed position of adjusting pharynx swab, can make the orbit coincide with the shape of patient's oral cavity pharynx back wall. Under the condition of ensuring the stability of the head of the patient, the pharyngeal secretion collecting device can effectively collect pharyngeal secretions of the patient instead of doctors. Meanwhile, because the acquisition path of the equipment is fixed, the equipment cannot touch the palatopharyngeal arch of the patient due to misoperation, and the discomfort of the patient is reduced.

The above description is only for the embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, extension, etc. made within the spirit and principle of the present invention are all included in the protection scope of the present invention.

Claims

1. A pharyngeal swab sampling device, comprising: the pharynx swab clamping device comprises a base (1), a rotary driving mechanism and a crank slider mechanism, wherein the rotary driving mechanism and the crank slider mechanism are arranged on the base (1), and the rotary driving mechanism is used for providing rotary driving force; the slider-crank mechanism is connected with the rotary driving mechanism, and the throat swab (8) is connected with the slider-crank mechanism; the crank slider mechanism is used for driving the throat swab (8) to swing and enabling the tail end of the throat swab (8) to continuously move on an elliptic track.

2. A pharyngeal swab sampling device according to claim 1, characterised in that the rotary drive mechanism is disposed within the inner cavity of the base (1); the rotary driving mechanism comprises a motor (2) and a power supply device (3), the power supply device (3) is connected with the motor (2), and a motor shaft (9) of the motor (2) is connected with the slider-crank mechanism.

3. A pharyngeal swab sampling device according to claim 2, characterised in that the power supply means (3) comprises a power source, a power box, connecting wires and a switch (4), wherein the power source is arranged in the power box and is connected with the switch (4) and the motor (2) through the connecting wires to form a closed circuit; the switch (4) extends out of a switch hole formed in the base (1).

4. A pharyngeal swab sampling device according to claim 2, characterised in that the crank-slider mechanism comprises a crank (5), a movable connecting rod (6) and a slider (7), wherein one end of the crank (5) is connected with the motor shaft (9) and the other end is hinged with one end of the movable connecting rod (6); the other end of the movable connecting rod (6) is hinged with the sliding block (7); the sliding block (7) is connected with the base (1) in a sliding manner; the throat swab (8) is connected with the movable connecting rod (6).

5. A pharyngeal swab sampling device according to claim 2, characterised in that the slider-crank mechanism comprises a rotary disc (12), a movable link (6) and a slider (7), wherein the rotary disc (12) is connected to the motor shaft (9), one end of the movable link (6) is hinged to the rotary disc (12) at a position offset from the central axis, and the other end is hinged to the slider (7); the sliding block (7) is connected with the base (1) in a sliding manner; the throat swab (8) is connected with the movable connecting rod (6).

6. A pharyngeal swab sampling device according to claim 4 or 5, characterised in that the base (1) is of hollow cylindrical configuration, the upper end of which is provided with an extension in the horizontal direction, said extension being provided with a sliding groove (102), the slider (7) being in sliding engagement with the sliding groove (102).

7. A pharyngeal swab sampling device according to claim 6, characterised in that the chute (102) is a straight slot arranged in a direction away from or towards the motor shaft (9).

8. A pharyngeal swab sampling device according to claim 4 or 5, characterised in that the pharyngeal swab (8) and the movable link (6) are mutually parallel and elastically connected.

9. A pharyngeal swab sampling device according to claim 4 or 5, characterised in that the movable link (6) is provided with a bayonet, the pharyngeal swab (8) being snap-fitted to the movable link (6).

10. A pharyngeal swab sampling device according to claim 1, characterised in that the crank-slider mechanism is provided with an upper cover (11) on the outside, the upper cover (11) being connected to the base (1).