CN213551940U - Protection device for preventing respiratory secretion pollution and respiratory tract sampling system - Google Patents

Abstract

The utility model discloses a prevent protection device and respiratory track sampling system that respiratory secretion pollutes, this protection device includes following component parts: the sampling mask is used for the collection process of the throat swab and is covered on the mouth of the patient to push against the tongue of the patient so as to expose the throat; the electric heating inactivation device is used for receiving the gas in the sampling mask and carrying out high-temperature sterilization on the gas; the condensing device is used for receiving and cooling the gas sterilized at high temperature by the electric heating inactivation device; the sterilizing device is used for receiving the gas, the liquid or the gas-liquid mixture flowing out of the condensing device and sterilizing virus and germs; and the negative pressure suction device is used for enabling the gas in the sampling mask to sequentially flow through the electric heating inactivation device and the condensing device under the negative pressure effect and then enter the sterilization device. The utility model discloses respiratory track sampling system effectively prevents the pollution of virus droplet at the collection pharynx swab in-process, and virus or bacterium deactivation in with the person of being examined exhale reach sterile condition.

Description

Protection device for preventing respiratory secretion pollution and respiratory tract sampling system

Technical Field

The utility model relates to a clinical examination diagnostics field, concretely relates to prevent protection device and respiratory track sampling system that respiratory secretion pollutes.

Background

The upper respiratory tract secretion sampling (throat swab) is used in collecting throat specimen and is one important method of detecting coronavirus and respiratory tract infectious disease. At present, the upper respiratory tract secretion sampling is mostly carried out under the condition of not perfecting the peripheral protection, and in the sampling process, as the patient breathes, the spray produced by cough exposes the examiner to a large amount of viruses or bacteria, and the risk of contact and transmission of the examiner is increased. The droplets lose moisture in the air suspension process, and the remaining proteins and pathogens form droplet nuclei which can exist in the air in the form of aerosol and are exposed to high-concentration aerosol for a long time in a relatively closed environment, so that the infection risk of inspectors and testees is increased.

How to avoid secondary pollution caused by virus droplets spreading along with air flow and avoid cross infection in the collection process of the throat swab is a technical problem to be solved urgently at present.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a prevent protection device and respiratory tract sampling system of breathing secretion pollution to solve pharynx swab collection in-process virus droplet and spread along with the air flow and form secondary pollution and cause cross infection's problem easily.

In order to achieve the above object, the present invention provides the following technical solutions:

according to the utility model discloses an aspect, the utility model provides a prevent protection device of breathing secretion pollution, this protection device includes following component parts: the sampling mask is used for the collection process of the throat swab and is covered on the mouth of the patient to push against the tongue of the patient so as to expose the throat; the electric heating inactivation device is used for receiving the gas in the sampling mask and carrying out high-temperature sterilization on the gas; the condensing device is used for receiving and cooling the gas sterilized at high temperature by the electric heating inactivation device; the sterilizing device is used for receiving the gas, the liquid or the gas-liquid mixture flowing out of the condensing device and sterilizing viruses and germs; and the negative pressure suction device is used for enabling the gas in the sampling mask to sequentially flow through the electric heating inactivation device and the condensing device under the action of negative pressure and then enter the sterilization device.

Further, the sampling face guard includes that face guard body, tongue depressor, mouthpiece, annular inner tube and aspirator connect, the face guard body is leaks hopper-shaped, the mouthpiece is the ring form, the mouthpiece encircle connect in the periphery that face guard body bottom cylindric connects, the tongue depressor vertical connect in between the annular inner wall of mouthpiece, annular inner tube encircle connect in on the face guard body top inner wall, the annular inner tube is kept away from one side interval inside the face guard body is equipped with a plurality of suction ports so that this internal gas of face guard gets into annular inner tube, the income gas port end that the aspirator connects with annular inner tube intercommunication, the gas outlet end that the aspirator connects with electrical heating deactivation device intercommunication.

Further, the outer diameter of the cylindrical joint at the bottom of the mask body is 3.5-4.5 cm.

Furthermore, the electric heating inactivation device comprises a heating box body, a temperature controller, a resistance heater, a heat insulation layer and a one-way valve; the resistance heaters are vertically arranged in the heating box body in parallel at intervals, the resistance heaters are connected to the top wall or the bottom wall of the heating box body so as to form a circulation channel with the bottom wall or the top wall of the heating box body, and two adjacent resistance heaters are connected to different inner walls of the heating box body; the temperature controller is connected with the heating box body to control the temperature of the gas in the heating box body; the heat insulation layer is arranged on the inner wall of the heating box body; the one-way valve is arranged between the air outlet end of the aspirator joint and the air inlet of the heating box body.

Further, condensing equipment includes air condenser pipe, liquid condenser pipe, condensation box and condensate cooling tube, the liquid condenser pipe set up in the condensation box in order to cool off through loading in the coolant liquid in the condensation box, the air condenser pipe set up in heat the box gas outlet with the liquid condenser pipe is gone into between the gas port in order to cool off through the air, the exit end of liquid condenser pipe with the entry end intercommunication of killing the device, the condensate cooling tube set up for a plurality of and interval in the condensation box is outside, the entry and the export of condensate cooling tube all with the inside intercommunication of condensation box, so that the exchange flow can take place for the coolant liquid of different height departments in the condensation box.

Further, the sterilizing device comprises a sterilizing box body, a suspension pipe, a support frame and a sterilizing material layer, wherein the support frame is arranged in the sterilizing box body, the sterilizing material layer is arranged on the support frame, an inlet of the suspension pipe is communicated with an outlet of the liquid condensation pipe, and an interval between the outlet of the suspension pipe and the sterilizing material layer is 0.5-2 cm; the disinfection material layer is an alcohol cotton layer.

Further, the negative pressure suction device comprises a tail gas box body and a negative pressure suction apparatus, the negative pressure suction apparatus is arranged inside the tail gas box body, and the negative pressure suction apparatus is communicated with an inlet and an outlet of the sterilizing box body.

According to a second aspect of the present invention, there is provided a respiratory tract sampling system comprising the above-described protection device and a pharyngeal swab; the pharynx swab comprises a pharynx swab body and a protection piece, wherein the protection piece is used for preventing negative pressure separation of upper respiratory tract secretions adhered to the pharynx swab body when the pharynx swab body is taken out.

Further, the pharynx swab body includes cotton ball and connecting rod, the protection piece includes first cover body, spring, borrow power pole, pushes away handle and push rod, the cotton ball connect in the connecting rod front end, first cover body cover is located the cotton ball with the connecting rod is outside, borrow power pole connect in first cover body tail end, the spring connect in borrow power pole with push away between the handle, the push rod front end pass borrow power pole with connecting rod end connection, the push rod tail end with push away the handle and be connected, push away the handle and promote when receiving forward thrust the push rod, the connecting rod with the cotton ball moves forward so that the cotton ball breaks away from first cover body, when pushing away from the handle atress, the spring kick-back makes the cotton ball get back to first cover body is inside.

Further, the pharynx swab body includes cotton ball and connecting rod, the protection piece includes the second cover body, the cotton ball connect in the connecting rod front end, the second cover body is the awl bucket form, the second cover body along the connecting rod cover that slides forward locates outside the cotton ball, the second cover body along the connecting rod slides backward makes the cotton ball expose outside.

The utility model has the advantages of as follows:

the utility model discloses respiratory tract sampling system is gathering the protection device that the pharynx swab in-process pollutes through preventing breathing secretion, effectively prevents that examiner and quilt from being polluted by the virus droplet, in the operation of upper respiratory tract secretion sample, uses the utility model discloses effectively preventing behind the protection device in a large amount of viruses and bacterium from getting into in the air and the production of aerosol in the relatively sealed environment, reach the filter effect simultaneously, with virus or bacterium deactivation in the person being examined exhale, reach sterile condition.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a protective device for preventing respiratory secretions from being polluted, which is provided by embodiments 1, 5 and 7 of the invention;

fig. 2-4 are schematic structural views of a sampling mask in the protective device for preventing respiratory secretions from being polluted according to embodiments 2 and 3 of the present invention;

fig. 5 and 6 are schematic structural diagrams of an electric heating inactivation device in the protection device for preventing respiratory secretions from being polluted according to embodiment 4 of the present invention;

fig. 7 is a schematic structural diagram of a condensing device in a protection device for preventing respiratory secretions from being polluted according to embodiment 5 of the present invention;

fig. 8 is a schematic structural view of a killing device in a protective device for preventing respiratory secretions from being polluted according to embodiment 6 of the present invention;

fig. 9 is a schematic structural view of a pharyngeal swab in the respiratory tract sampling system according to embodiment 9 of the present invention;

fig. 10 is a schematic structural view of a pharyngeal swab in the respiratory tract sampling system according to embodiment 10 of the present invention.

In the figure:

1, a sampling mask, 2, an electric heating inactivation device, 3, a condensation device, 4 a sterilization device and 5 a negative pressure suction device;

11 mask body, 12 tongue depressor, 13 mouthpiece, 14 annular inner tube, 15 aspirator joint, 16 suction hole, 17 barrel joint;

21 heating box body, 22 temperature controller, 23 resistance heater, 24 heat preservation layer, 25 one-way valve;

31 an air condensation pipe, 32 a liquid condensation pipe, 33 a condensation box body and 34 a condensation radiating pipe;

41 a sterilizing box body, 42 a hanging pipe, 43 a supporting frame and 44 a sterilizing material layer;

51 tail gas box body, 52 negative pressure suction device;

101 cotton balls, 102 connecting rods, 103 a first cover body, 104 springs, 105 a force rod, 106 a push handle, 107 a push rod and 110 a second cover body.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The present embodiment provides a protection device for preventing respiratory secretions from being polluted, which comprises the following components as shown in fig. 1:

the sampling mask 1 is used for the collection process of throat swabs and is covered on the mouth of a patient to push against the tongue of the patient to expose the throat;

the electric heating inactivation device 2 is used for receiving the gas in the sampling mask 1 and sterilizing the gas at high temperature;

the condensing device 3 is used for receiving and cooling the gas sterilized at high temperature by the electric heating inactivation device 2;

the sterilizing device 4 is used for receiving the gas, the liquid or the gas-liquid mixture flowing out of the condensing device 3 and sterilizing virus and germs;

and the negative pressure suction device 5 is used for enabling the gas in the sampling mask 1 to sequentially flow through the electric heating inactivation device 2 and the condensing device 3 under the action of negative pressure and then enter the sterilization device 4.

Medical staff is in the process of collecting the throat swab to a patient, the mouth and the throat of the patient are exposed in the air, so that bacterial viruses in the mouth and the throat of the patient can easily enter the air, and further more people are infected, the protection device of the embodiment is used for collecting the throat swab, the sampling mask 1 is arranged in the mouth of the patient and can be abutted against the tongue of the patient to expose the throat of the patient so as to be convenient for the medical staff to collect the throat swab, in the process of collecting the throat swab, the negative pressure suction device 5 enables the inside of the sampling mask 1, namely the mouth of the patient, to be in a negative pressure state, so that gas in the mouth of the patient (carrying secretion of the throat of the patient) is sequentially subjected to heating and fire extinguishing by the electric heating inactivation device 2 under the negative pressure effect, condensation by the condensing device 3 and virus and bacteria killing by the killing device 4, so that the mouth and, effectively avoids the infection caused by the secretion of the throat of the patient entering the air, and effectively purifies the air possibly containing bacterial virus through multi-stage killing and disinfection.

Example 2

The protective device according to embodiment 1, as shown in fig. 2 to 4, the sampling mask 1 includes a mask body 11, a tongue depressor 12, a mouthpiece 13, an annular inner tube 14 and an aspirator tip 15, the mask body 11 is funnel-shaped, the mouthpiece 13 is circular ring-shaped, the mouthpiece 13 is connected around the periphery of a cylindrical joint 17 at the bottom of the mask body 11, the tongue depressor 12 is vertically connected between the annular inner walls of the mouthpiece 13, the annular inner tube 14 is connected to the inner wall of the top of the mask body 11 in a surrounding manner, a plurality of air suction holes 16 are formed in the annular inner tube 14 at a position spaced apart from the inner side of the mask body 11 so that air in the mask body 11 can enter the annular inner tube 14, the air inlet end of the aspirator joint 15 is communicated with the annular inner tube 14, and the air outlet end of the aspirator joint 15 is communicated with the electric heating inactivation device 2.

When the sampling mask 1 of the embodiment is used, the tongue depressor 12 is pressed above the tongue of the patient (similar to the use method of the tongue depressor in throat examination), the cylindrical joint 17 is just positioned in the mouth of the patient, the mouth of the patient is just occluded at the periphery of the mouthpiece 13, and medical staff can see the throat part of the patient through the mask body 11 and the cylindrical joint 17 and can collect throat swabs. A plurality of air suction holes 16 are formed in the pipe wall of the annular inner pipe 14 close to the funnel center of the mask body 11 at intervals, so that air entering the mask body 11 can be quickly sucked into the air suction holes 16 under the negative pressure action of the negative pressure suction device 5 and then conveyed to the electric heating inactivation device 2.

The sampling mask 1 of the embodiment can be a disposable mask, and the sampling mask 1 is taken down after the collection of a throat swab of a patient is finished (specifically, the suction device connector 15 of the oversampling mask 1 is pulled down from the electric heating inactivation device 2), so that the throat swab collection process can be carried out under sterile and safe conditions every time, and cross infection is effectively avoided; preferably, the mask body 11, the tongue depressor 12, the mouthpiece 13, the annular inner tube 14, the aspirator connector 15 and the cylindrical connector 17 may be made of degradable materials, specifically, degradable paper or plant straws such as wheat, corn straw and the like, and even the waste sampling mask 1 may be directly degraded by soil or may be used after being sterilized and recycled, so that better environmental protection and recyclability are achieved.

Example 3

In the protective device according to embodiment 2, as shown in fig. 2 to 4, the cylindrical joint 17 at the bottom of the mask body 11 has an outer diameter of 3.5 to 4.5 cm. So that the cartridge connector 17 can be conveniently and properly inserted into the patient's mouth for use.

Example 4

The protection device according to embodiment 2, as shown in fig. 5 and 6, the electrical heating inactivation device 2 includes a heating box 21, a temperature controller 22, a resistance heater 23, an insulation layer 24 and a one-way valve 25; the resistance heaters 23 are in a plurality of sheet shapes, the resistance heaters 23 are vertically arranged in the heating box body 21 in parallel at intervals, the resistance heaters 23 are connected to the top wall or the bottom wall of the heating box body 21 so as to form a circulation channel with the bottom wall or the top wall of the heating box body 21, and two adjacent resistance heaters 23 are connected to different inner walls of the heating box body 21; the temperature controller 22 is connected with the heating box body 21 to control the temperature of the gas in the heating box body 21; the heat insulation layer 24 is arranged on the inner wall of the heating box body 21; the check valve 25 is disposed between the air outlet end of the aspirator connector 15 and the air inlet of the heating box body 21.

The gas can only flow into the electric heating inactivation device 2 from the sampling mask 1 end through the one-way valve 25, but can not flow into the sampling mask 1 end from the electric heating inactivation device 2; the temperature controller 22 can be various temperature controllers which are conventionally used for controlling the internal temperature of the electric appliance box body, and the temperature controller 22 can be used for setting and controlling the higher temperature in the heating box body 21 so as to kill bacteria and viruses in the gas at high temperature; the heating box body 21 has better heat preservation performance by arranging the heat preservation layer 24, and electric energy can be saved; the arrangement and connection mode of the resistance heaters 23 enable the heating box 21 to form a bottom-top-bottom-top … … type gas flow circulation channel inside, so that gas entering the heating box 21 can pass through the heating box 21 to enter the next-stage condensing device 3 in a "circuitous manner", and the gas can be killed at high temperature more thoroughly and sufficiently.

Example 5

The protection apparatus according to embodiment 4, as shown in fig. 1 and 7, the condensing apparatus 3 includes an air condensation duct 31, a liquid condensation duct 32, a condensation tank 33 and a condensate radiating pipe 34, the liquid condensation duct 32 is provided in the condensation tank 33 to be cooled by the cooling liquid loaded in the condensation tank 33, the air condensation duct 31 is disposed between the air outlet of the heating cabinet 21 and the air inlet of the liquid condensation duct 32 to be cooled by air, the outlet end of the liquid condensation pipe 32 is communicated with the inlet end of the sterilizing device 4, the plurality of condensate heat dissipation pipes 34 are arranged outside the condensation box body 33 at intervals, the inlet and outlet of the condensate radiating pipe 34 are communicated with the inside of the condensation tank 33, so that the cooling liquid at different heights in the condensation tank 33 can flow in an exchange manner.

The high-temperature gas killed by the electric heating inactivation device 2 firstly enters the air condensation pipe 31, the air condensation pipe 31 is arranged in the air, and the high-temperature gas in the air condensation pipe 31 is cooled by the room-temperature air; then enters the condensate radiating pipe 34, the condensate radiating pipe 34 is located in the cooling liquid in the condensation box body 33, so that the gas in the condensate radiating pipe 34 can be cooled by the cooling liquid with lower temperature; in the process of cooling the liquid condenser tube 32, the temperature of the coolant in the condenser box 33 will also rise faster (the condensate near the liquid condenser tube 32), the inlets and outlets of the condensate radiating tubes 34 are located at different heights of the condenser box 33, for example, the two opening ends of the condensate radiating tubes 34 are located at the top and bottom of the condenser box 33, so that the coolant in the condenser box 33 can be mixed more uniformly, which is favorable for reducing the overall temperature of the coolant in the condenser box 33, i.e., the condenser box 33 has better self-radiating function, and, preferably, the condensate radiating tubes 34 located outside the condenser box 33 can be cooled by an external auxiliary fan, an air conditioner, etc., so as to cool the coolant in the condenser box 33 more quickly, so that the condenser device 3 can better perform the condensing function, and the gas flowing out through the condenser device 3 is closer to the room temperature, avoid causing the room temperature to overheat.

Example 6

The protection device according to embodiment 5, as shown in fig. 8, the sterilizing device 4 includes a sterilizing tank 41, a suspension pipe 42, a support frame 43 and a sterilizing material layer 44, the support frame 43 is disposed in the sterilizing tank 41, the sterilizing material layer 44 is disposed on the support frame 43, an inlet of the suspension pipe 42 is communicated with an outlet of the liquid condensation pipe 32, and an interval between an outlet of the suspension pipe 42 and the sterilizing material layer 44 is 0.5-2 cm;

the disinfecting substance layer 44 is an alcohol cotton layer.

In the protection device of the embodiment, the outlet end of the hanging pipe 42 is surrounded by the sterilizing material layer 44, so that the gas exhausted from the hanging pipe 42 can fully contact the sterilizing agent in the sterilizing material layer 44, and the sterilizing agent can sterilize possible residual germs and viruses, thereby leading the protection device to have more thorough and better virus and bacteria sterilizing efficacy, and the outlet of the hanging pipe 42 is spaced 0.5-2cm from the sterilizing material layer 44, and the gas exhausted from the outlet end of the hanging pipe 42 can be freely exhausted.

Example 7

As shown in fig. 1, the protection device according to embodiment 6 includes an exhaust gas tank 51 and a negative pressure suction unit 52, wherein the negative pressure suction unit 52 is disposed inside the exhaust gas tank 51, and an inlet of the negative pressure suction unit 52 is communicated with an outlet of the sterilizing tank 41.

The negative pressure suction apparatus 52 can be a vacuum pump or other negative pressure devices, and the wall of the tail gas box body 51 can be provided with a plurality of vent holes, so that the tail gas box body 51 can prevent the negative pressure suction apparatus 52 from being directly exposed and easily damaged, and the gas sterilized by the sterilizing device 4 can enter the tail gas box body 51 and then enter the air in a buffering manner, thereby avoiding large air flow and air pressure.

Example 8

The present embodiment provides an airway sampling system comprising the protective device of any of embodiments 1-7 and a pharyngeal swab;

the pharynx swab comprises a pharynx swab body and a protection piece, wherein the protection piece is used for preventing negative pressure separation of upper respiratory tract secretions adhered to the pharynx swab body when the pharynx swab body is taken out.

The upper respiratory tract secretion sampling system of this embodiment is gathering the in-process of pharynx swab, makes the gas of patient's throat oral area pass through multistage virus bacteria's the process of killing in proper order through protection device, has effectively avoided taking place cross infection.

Example 9

The respiratory sampling system according to embodiment 8, as shown in fig. 9, the pharyngeal swab body comprises a cotton ball 101 and a connecting rod 102, the protecting member comprises a first cover 103, a spring 104, a borrowing rod 105, a push handle 106 and a push rod 107, the cotton ball 101 is connected to the front end of the connecting rod 102, the first cover 103 covers the cotton ball 101 and the connecting rod 102, the borrowing rod 105 is connected to the rear end of the first cover 103, the spring 104 is connected between the borrowing rod 105 and the push handle 106, the front end of the push rod 107 passes through the borrowing rod 105 and is connected with the rear end of the connecting rod 102, the rear end of the push rod 107 is connected with the push handle 106, the push handle 106 pushes the push rod 107, the connecting rod 102 and the cotton ball 101 to move forwards to separate the cotton ball 101 from the first cover 103 when forward pushing force is applied to the push handle 106, the spring 104 rebounds to return the cotton ball 101 to the interior of the first cover 103.

Before the upper respiratory tract secretion sampling system is used, all levels of sterilizing devices and negative pressure devices in the protection device are firstly opened, the sampling mask 1 is placed in the mouth of a patient, when throat swabs of the patient need to be collected, the front end (with a cotton ball 101 inside) of the first cover body 103 is firstly inserted into the throat of the patient, the first cover body 103 and the force-borrowing rod 105 are held by hands, the push handle 106 is pushed forwards, the push handle 106 drives the push rod 107, the connecting rod 102 and the cotton ball 101 to move forwards, the cotton ball 101 is moved out of the first cover body 103 to contact the skin of the throat of the patient, the cotton ball 101 is repeatedly smeared for a plurality of times, the collection of the throat swabs can be completed, when the throat swabs need to be taken out after the collection is finished, the hands are firstly released to enable the push handle 106 not to be pushed forwards, the push handle 106 drives the push rod 107, the connecting rod 102 and the cotton ball 101 to move backwards to the original position, the, like this at the in-process of taking out the pharynx swab, avoid the negative pressure to break away from the secretion on cotton ball 101 surface and cause the testing result inaccurate, consequently, the upper respiratory tract secretion sampling system of this embodiment can obtain more accurate pharynx swab test result, and gas is in the negative pressure state in the test process, has safer operation environment, avoids cross infection.

Example 10

The respiratory sampling system according to embodiment 8, as shown in fig. 10, the pharyngeal swab body comprises a cotton ball 101 and a connecting rod 102, the protecting member comprises a second cover 110, the cotton ball 101 is connected to the front end of the connecting rod 102, the second cover 110 is in a cone-barrel shape, the second cover 110 is slidingly covered outside the cotton ball 101 along the connecting rod 102 in a forward direction, and the second cover 110 is slidingly covered along the connecting rod 102 in a backward direction to expose the cotton ball 101.

The upper respiratory tract secretion sampling system of this embodiment is at first opened each level of killing device and negative pressure device in the protection device before using, put sampling mask 1 in the patient mouth, when needing to gather patient's pharynx swab, at first handheld connecting rod 102 is put into patient's pharynx portion with cotton ball 101 and is sampled, after the sampling, cover the second cover body 110 on cotton ball 101 after passing connecting rod 102 and the lapse, then take out the pharynx swab, like this at the in-process of taking out the pharynx swab, avoid the negative pressure to break away from the secretion on cotton ball 101 surface and cause the testing result inaccurate, therefore, the upper respiratory tract secretion sampling system of this embodiment can obtain more accurate pharynx swab test result, and gas is in the negative pressure state in the test procedure, there is safer operation environment, avoid cross infection.

The utility model discloses a respiratory tract sampling system is gathering the protection device that pharyngeal swab in-process pollutes through preventing breathing secretion, effectively prevents virus contact, propagation, reduces inspector and examinee's infection risk, and with virus or bacterium inactivation in the examinee's expiration simultaneously, reaches no disease germ-free state, simple structure, it is with low costs, can design into the convenient clinical use of device of multiple specification according to the inspection purpose.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A protective device for preventing contamination of respiratory secretions, comprising:

the sampling mask (1) is used for the collection process of the throat swab, and is covered on the mouth of the patient to push against the tongue of the patient to expose the throat;

the electric heating inactivation device (2) is used for receiving the gas in the sampling mask (1) and sterilizing the gas at high temperature;

the condensing device (3) is used for receiving and cooling the gas sterilized at high temperature by the electric heating inactivation device (2);

the sterilizing device (4) is used for receiving the gas, the liquid or the gas-liquid mixture flowing out of the condensing device (3) and sterilizing viruses and germs;

and the negative pressure suction device (5) is used for enabling the gas in the sampling mask (1) to sequentially flow through the electric heating inactivation device (2) and the condensing device (3) under the action of negative pressure and then enter the sterilization device (4).

2. The protection device according to claim 1, wherein the sampling mask (1) comprises a mask body (11), a tongue depressor (12), a mouthpiece (13), an annular inner tube (14) and an aspirator connector (15), the mask body (11) is funnel-shaped, the mouthpiece (13) is circular, the mouthpiece (13) surrounds the periphery of a cylindrical connector (17) connected to the bottom of the mask body (11), the tongue depressor (12) is vertically connected between the annular inner walls of the mouthpiece (13), the annular inner tube (14) surrounds the top inner wall of the mask body (11), one side of the annular inner tube (14) far away from the inside of the mask body (11) is provided with a plurality of air suction holes (16) at intervals so that the air in the mask body (11) enters the annular inner tube (14), and the air inlet end of the aspirator connector (15) is communicated with the annular inner tube (14), the air outlet end of the aspirator joint (15) is communicated with the electric heating inactivation device (2).

3. A protective device according to claim 2, wherein the cylindrical joint (17) at the bottom of the mask body (11) has an outer diameter of 3.5-4.5 cm.

4. The protection device according to claim 2, characterized in that the electrical heating deactivation device (2) comprises a heating box (21), a thermostat (22), a resistance heater (23), an insulating layer (24) and a one-way valve (25); the resistance heaters (23) are in a plurality of sheet shapes, the resistance heaters (23) are vertically arranged in the heating box body (21) in parallel at intervals, the resistance heaters (23) are connected to the top wall or the bottom wall of the heating box body (21) so as to form a circulation channel with the bottom wall or the top wall of the heating box body (21), and two adjacent resistance heaters (23) are connected to different inner walls of the heating box body (21); the temperature controller (22) is connected with the heating box body (21) to control the temperature of the gas in the heating box body (21); the heat insulation layer (24) is arranged on the inner wall of the heating box body (21); the one-way valve (25) is arranged between the air outlet end of the aspirator joint (15) and the air inlet of the heating box body (21).

5. The protection device according to claim 4, wherein the condensing means (3) comprises an air condensing pipe (31), a liquid condensing pipe (32), a condensing box body (33), and a condensing heat radiating pipe (34), the liquid condensing pipe (32) is disposed in the condensing box body (33) to be cooled by the cooling liquid loaded in the condensing box body (33), the air condensing pipe (31) is disposed between the air outlet of the heating box body (21) and the air inlet of the liquid condensing pipe (32) to be cooled by air, the outlet end of the liquid condensing pipe (32) is communicated with the inlet end of the killing means (4), the condensing heat radiating pipe (34) is disposed at intervals outside the condensing box body (33), and the inlet and outlet of the condensing heat radiating pipe (34) are communicated with the inside of the condensing box body (33), so as to enable the exchange flow of the cooling liquid at different heights in the condensation box body (33).

6. The protection device according to claim 5, wherein the sterilizing device (4) comprises a sterilizing box body (41), a suspension pipe (42), a support frame (43) and a sterilizing material layer (44), the support frame (43) is arranged in the sterilizing box body (41), the sterilizing material layer (44) is arranged on the support frame (43), an inlet of the suspension pipe (42) is communicated with an outlet of the liquid condensation pipe (32), and an outlet of the suspension pipe (42) is spaced from the sterilizing material layer (44) by 0.5-2 cm;

the disinfection material layer (44) is an alcohol cotton layer.

7. The protection device according to claim 6, characterized in that said negative pressure suction device (5) comprises an exhaust box (51) and a negative pressure aspirator (52), said negative pressure aspirator (52) being arranged inside said exhaust box (51), said negative pressure aspirator (52) being in communication with an inlet and an outlet of said killing box (41).

8. An airway sampling system comprising a protective device according to any one of claims 1 to 7 and a pharyngeal swab;

the pharynx swab comprises a pharynx swab body and a protection piece, wherein the protection piece is used for preventing negative pressure separation of upper respiratory tract secretions adhered to the pharynx swab body when the pharynx swab body is taken out.

9. The respiratory sampling system of claim 8, wherein the pharyngeal swab body comprises a cotton ball (101) and a connecting rod (102), the protection member comprises a first cover (103), a spring (104), a borrowing rod (105), a pushing handle (106) and a pushing rod (107), the cotton ball (101) is connected to the front end of the connecting rod (102), the first cover (103) is covered outside the cotton ball (101) and the connecting rod (102), the borrowing rod (105) is connected to the rear end of the first cover (103), the spring (104) is connected between the borrowing rod (105) and the pushing handle (106), the front end of the pushing rod (107) passes through the borrowing rod (105) to be connected with the rear end of the connecting rod (102), the rear end of the pushing rod (107) is connected with the pushing handle (106), and the pushing handle (106) pushes the pushing rod (107) when being pushed forwards, The connecting rod (102) and the cotton ball (101) move forwards to enable the cotton ball (101) to be separated from the first cover body (103), and when the push handle (106) is not stressed any more, the spring (104) rebounds to enable the cotton ball (101) to return to the inside of the first cover body (103).

10. The respiratory sampling system of claim 8, wherein the pharyngeal swab body comprises a cotton ball (101) and a connecting rod (102), the protector comprises a second cover (110), the cotton ball (101) is connected to the front end of the connecting rod (102), the second cover (110) is in a cone-barrel shape, the second cover (110) is slidingly covered outside the cotton ball (101) forwards along the connecting rod (102), and the second cover (110) is slidingly covered backwards along the connecting rod (102) to expose the cotton ball (101).

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