CN212281432U - Self-service collection suit for nasopharynx swab - Google Patents

Abstract

The utility model belongs to the technical field of biological medicine, concretely relates to suit is gathered by oneself to nasopharynx swab, including the nasopharynx swab, still include guide structure, guide structure includes the direction substructure, the direction substructure includes the pipy guide part of C type, the one end opening of guide part is in the entry of nasal passage down, the other end opening of guide part is in the nostril of the homonymy of nasal passage down. This suit can realize the self-service nasopharynx swab sampling of patient, helps the patient correctly insert the nasopharynx swab with the nasopharynx swab, improves the self-service sampling success rate for solve the big technical problem of the exposure risk of medical staff direct acquisition sample and the big operation degree of difficulty of self-service collection of patient. The scheme can be applied to medical practice operations such as sampling and detection of respiratory infectious diseases with strong infectivity, such as new coronary pneumonia.

Description

Self-service collection suit for nasopharynx swab

Technical Field

The utility model relates to a biological medicine technical field, concretely relates to suit is gathered by oneself to nasopharynx swab.

Background

In the medical practice of detecting nucleic acid of the new coronavirus, oropharyngeal swabs and nasopharyngeal swabs are often adopted for sampling. Among them, the accuracy of nasopharyngeal swab is higher than that of oropharyngeal swab, so in the actual application process, the nasopharyngeal swab is more widely applied. Current nasopharyngeal swab includes pole portion and head (the nasopharyngeal swab is the slender cotton swab of appearance promptly), uses nasopharyngeal swab sampling process specifically to be: the front ends of the nostrils and the nasal vestibules are cleaned, so that the secretion is prevented from influencing the sampling process; then putting the head of the nasopharyngeal swab into physiological saline for wetting, then inserting the nasopharyngeal swab into the nostril in a direction vertical to the face of a human until the head of the nasopharyngeal swab reaches the nasopharyngeal part, keeping the swab in the nose for 15-30 seconds, and then slightly rotating the nasopharyngeal swab; and finally, putting the nasopharyngeal swab into a test tube containing a virus conveying culture medium (virus culture solution), breaking off the rod part of the nasopharyngeal swab with the length exceeding that of the test tube, covering a test tube cover, and conveying the test tube containing the nasopharyngeal swab to a specified nucleic acid detection laboratory for detection. The existing nasopharyngeal swab adopting process is operated by medical staff, but the infectivity of the new coronavirus is very strong, and the nasopharyngeal swab collects samples, which brings serious exposure risk to the medical staff. If self-service collection of patients (suspected patients) can be realized, the sampling risk of medical staff can be greatly reduced. However, the difficulty of collecting a sample by using a nasopharyngeal swab is high, and the existing nasopharyngeal swab collecting method and device bring significant discomfort to a patient, and a person who is not trained professionally hardly inserts a swab head of the nasopharyngeal swab into the nasopharyngeal part, or the nasopharyngeal swab stays in the nasopharyngeal part for a short time, so that the amount of collected secretions is insufficient, and finally, the sample collection fails and the subsequent nucleic acid detection is false negative (or the false negative ratio is high). There is a need to develop a nasopharyngeal swab set which can assist a patient to collect a sample by himself and has a good comfort level so as to meet the requirement of detecting highly contagious diseases such as new coronary pneumonia.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a nasopharynx swab gathers suit by oneself, this suit can realize that the patient accomplishes the sampling of nasopharynx swab by oneself under the painful prerequisite of experiencing of relative reduction, assists the patient with nasopharynx swab correctly insert the nasopharynx portion, improves the success rate of sampling by oneself for solve the exposure risk that medical staff directly gathered the sample big and the patient gathers the technical problem that the operation degree of difficulty is big by oneself.

In order to solve the technical problem, the utility model discloses technical scheme as follows:

suit is gathered by oneself to nasopharynx swab, including the nasopharynx swab, still include guide structure, guide structure includes the direction substructure, the direction substructure is including the tubulose guide part of buckling the setting, the guide part is used for in the leading-in nasal passage down of nasopharynx swab.

By adopting the technical scheme, the technical principle and the beneficial effects are as follows: the scheme is provided with the guide structure of the nasopharynx swab, one end of the guide part is opened at the inlet of the lower nasal passage, the other end of the guide part is opened at the nostril at the same side of the lower nasal passage, and people without nasopharynx sampling experience can be helped to find the correct inlet of the lower nasal passage. One end of the guide part is opened at the inlet of the inferior nasal meatus, and the other end of the guide part is opened at the nostril at the same side of the inferior nasal meatus. When in use, the guide structure is inserted into the nostril, then the nasopharynx swab is used for sampling, the swab head is penetrated into the C-shaped tubular guide part, and the swab head can be smoothly penetrated into the lower nasal passage under the guide effect of the guide structure. Through guide structure's setting, can help the simple convenient easy realization of patient (suspected patient) to sample by oneself, no longer need medical staff to carry out the one-to-one sampling, reduce medical staff's exposure risk.

Patients who are inexperienced in sampling (suspected patients) often have difficulty finding the opening of the inferior meatus toward the nasal vestibule (entrance to the inferior meatus), and are easily inserted into the nasopharyngeal swab in a direction parallel to the face, which is wrong and does not allow for sampling of the nasopharyngeal portion. In addition, more vibrissa is distributed near the nostril and on the inner wall of the nasal vestibule, more secretion containing pollutants (dust, bacteria, virus and the like) is adsorbed on the vibrissa, and if the swab head is infected with the secretion containing the pollutants, the sampling and detection results are possibly affected, and the detection accuracy is reduced. Moreover, after the swab head is stained with secretion containing pollutants, the swab head penetrates into the nasopharynx part, and pathogenic substances such as bacteria and viruses are possibly brought to the nasopharynx part by the swab head, so that infection is possibly caused. In addition to the above problems, the large number of sensory nerve endings are distributed near the nostrils and on the inner wall of the nasal vestibule, and the wiper head may irritate the nasal cavity of a patient (suspected patient), which may cause reactions such as sneezing and nasal secretion increase, thereby affecting smooth sampling. If the patient (suspected) has symptoms of upper respiratory infection and the nasal cavity is swollen, this further increases the difficulty of inserting the nasopharyngeal swab into the inferior nasal passage. The guide structure of the scheme can help a patient (suspected patient) to find the opening of the lower nasal meatus facing the nasal vestibule, prevent pollutants near the nostrils and on the inner wall of the nasal vestibule from being stained with the swab head, prevent the swab head from stimulating the nasal cavity (particularly the nasal cavity at the nasal vestibule), and solve the problems.

To sum up, this scheme is gathered suit's beneficial effect by oneself and is lain in:

1. the suit helps patients (suspected patients) to find the entrance of the lower nasal passage, prevents pollutants near the nostrils and on the inner wall of the nasal vestibule from contaminating the swab head, and solves the problem that people without professional training are difficult to insert the swab head of the nasopharyngeal swab into the nasopharynx.

2. The suit can prevent the swab head from stimulating the nasal cavity (particularly the nasal cavity near the nasal vestibule), increase the comfort degree of a patient (suspected patient), solve the problems of insufficient residence time of the nasopharyngeal swab in the nasopharynx part and insufficient secretion collection amount, and solve the problem of false negative (or higher false negative ratio) of nucleic acid detection caused by sample collection failure.

3. The suit can assist in realizing self-service collection of patients (suspected patients), and the sampling risk of medical staff can be greatly reduced.

4. The patient (suspected patient) utilizes the nasopharynx swab to collect the nucleic acid detection sample by oneself, can realize many people parallel collection, need not wait medical staff (epidemic situation outbreak period, medical staff quantity is limited) and gather in proper order, the sample acquisition time that has significantly reduced improves work efficiency, is particularly useful for needing to accomplish the condition of extensive crowd screening in the short time.

5. Because the scheme can assist in realizing parallel sampling of the patients, the sample acquisition time is reduced, the stay time (queuing waiting time) of suspected patients (possibly not infected) in the hospital is reduced, the exposure risk of the suspected patients is also reduced, and the patients are prevented from being infected in the waiting process in the hospital. In addition, because the suit has complete self-service operability, under the support of an intelligent platform or a storage device, an operator can finish the suit acquisition on the storage devices (such as a biological safety cabinet with self-service selling or storing functions) in communities, hospitals and the like, the self-service sampling in the home can be realized, and then the sample is timely sent to a detection mechanism or returned to the biological safety cabinet, so that the exposure risk of patients or medical staff is further reduced.

Further, the guiding substructure further comprises a limiting part, and the limiting part is positioned at one end of the guiding part, which is far away from the entrance of the inferior meatus.

Adopt above-mentioned technical scheme, spacing portion prevents that the user from inserting the guide part too deeply, also can be convenient for take out guide structure after using.

Further, the number of the guide substructures is two.

By adopting the technical scheme, the nasopharyngeal swab sampling is usually bilateral nostril sampling so as to ensure the sampling accuracy, and two guide substructures are required to be arranged.

Further, the material of guide structure is silica gel.

Adopt above-mentioned technical scheme, the silica gel material is soft, avoids guide structure to stab the nasal cavity.

Further, the nasopharyngeal swab comprises a swab head, and an indicator light is arranged at the top of the swab head.

By adopting the technical scheme, the indicator light can assist in confirming whether the swab head enters the nasopharynx or not. When a patient (suspected patient) needs to sample nasopharynx secretion, the swab head is inserted into the nostril (at the moment, the swab head is infiltrated by normal saline), the state that the nasopharynx swab is vertical to the face of the patient (suspected patient) is maintained, and the swab head is inserted into the lower nasal passage through the nasal vestibule until the swab head enters the nasopharynx. It is often difficult for a patient with no operational experience (suspected patient) to discern whether the swab head is inserted into the nasopharynx, at which time the patient (suspected patient) may open his mouth and face a mirror or cell phone to observe whether the pharynx has a light signal from the indicator light. If the light signal from the indicator light is observed, it indicates that the swab head has entered the nasopharynx and the sampling site is correct.

Further, the indicator lamp is covered with a spherical cover.

By adopting the technical scheme, the spherical cover facilitates the swab head to pass through the nasal cavity, and prevents the top end of the swab head from stabbing the inner wall of the nasal cavity.

Furthermore, a brush-shaped sampler is arranged in the swab head and is connected with the inner wall of the swab head in a sliding way.

By adopting the technical scheme, the brush-shaped sampler can slide in the swab head, so that the brush-shaped sampler can extend out of the swab head to the nasopharynx. The brush-shaped sampler is arranged in the swab head, and the brush-shaped sampler cannot be contacted with the nasal cavity in the process of extending the nasopharynx swab into the nasopharynx, so that the brush-mounted sampler is prevented from being polluted, the stimulation to the mucosa of the nasal cavity channel in the advancing process can be reduced, and the effect of improving the sampling quality while reducing the sampling pain experience is achieved.

Further, a pushing structure and a power structure are arranged in the nasopharynx swab; one end of the brush-shaped sampler is fixed on the pushing structure, the power structure comprises an air pipe and an air bag, and the pushing structure comprises a piston; the piston is connected with the inner wall of the air pipe in a sliding and sealing way.

By adopting the technical scheme, the power structure enables the pushing structure to move in the trachea, so that the brush-shaped sampler can be pushed from the swab head to the nasopharynx.

Further, the nasopharyngeal swab further comprises a connecting rod and a swab handle, wherein the connecting rod is used for connecting the swab head and the swab handle; the diameter of the wiper handle is larger than that of the connecting rod, and a power supply is arranged in the wiper handle.

By adopting the technical scheme, the connecting rod is used for supporting and pushing the swab head to enter the nasopharynx part; the relatively large diameter of the swab handle creates a space for a power source. If the sum of the lengths of the connecting rod and the swab head is set to be in a form matched with the depth of the nasopharynx part, the diameter of the swab handle is larger than that of the connecting rod, so that when the upper surface of the swab handle is close to the nasal wing or the limiting part of the guide structure, the nasopharynx swab can be prevented from continuing to go deep into the nasal cavity, the function of prompting a user that the insertion depth of the nasopharynx swab is proper is achieved, and the condition that the nasal cavity or the pharyngeal part is damaged due to the fact that the user without operation experience mistakenly inserts the nasopharynx swab too deep is avoided. The swab handle arranged according to the scheme has the double functions of facilitating the holding of a user and prompting the insertion depth of the swab head of the user.

Further, the wiper head comprises a wiper head I part and a wiper head II part, and an obtuse angle is formed between the wiper head I part and the wiper head II part.

By adopting the technical scheme, the soft palate has radian, and the wiper head is arranged in a bent way and can be more attached to the radian of the soft palate. Compared with a straight swab head, the swab head can penetrate into the nasopharynx part, and the sampling is more accurate. In addition, the indicator light of the wiper head which is bent in the scheme can be pointed to the epiglottis of the patient (suspected patient), and the light signal of the indicator light can be observed more easily when the mouth is opened.

Drawings

FIG. 1 is a median sagittal sectional view of the nasal cavity.

Fig. 2 is a front view of a nasopharyngeal swab of the prior art.

Fig. 3 is a front view of a guide structure according to embodiment 1 of the present invention.

Fig. 4 is a right side view of the guide structure according to embodiment 1 of the present invention.

Fig. 5 is a front view of a nasopharyngeal swab of embodiment 2 of the present invention.

Fig. 6 is a longitudinal sectional view of the portion a of fig. 5.

Fig. 7 is a longitudinal sectional view of a wiper handle according to embodiment 2 of the present invention.

Figure 8 is a front elevation view of a swab head according to example 3 of the invention.

Fig. 9 is a front view of a cutting structure according to embodiment 4 of the present invention.

Fig. 10 is a longitudinal sectional view of the portion B of fig. 9.

Fig. 11 is a top view of a cutting structure according to embodiment 4 of the present invention.

Fig. 12 is a bottom view of a fixing portion according to embodiment 4 of the present invention.

Fig. 13 is a bottom view of the cutting structure according to embodiment 4 of the present invention.

Fig. 14 is a cross-sectional view taken along line C-C of fig. 9.

Figure 15 is a longitudinal cross-sectional view of a swab head according to example 5 of the invention.

Fig. 16 is a front view of a wiper handle according to embodiment 5 of the present invention.

Fig. 17 is a longitudinal sectional view of a wiper handle according to embodiment 5 of the present invention.

Figure 18 is a longitudinal cross-sectional view of a partial swab head of example 6 of the invention.

Fig. 19 is a longitudinal sectional view of a wiper handle according to embodiment 6 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: a lower nasal meatus 1, a nasal vestibule 2, a inferior turbinate 3, a middle nasal meatus 4, a middle turbinate 5, an upper turbinate 6, an upper nasal meatus 7, a nasopharynx portion 8, a hard palate 9, a soft palate 10, a swab head 11, a connecting rod 12, a swab handle 13, a central rod 14, a sponge layer 15, a first top sheet 16, a first through hole 17, a spherical cover 18, an indicator light 19, a first lead 20, a second lead 21, a swab handle side wall 22, a second top sheet 23, a second through hole 24, an upper metal sheet 25, a lower metal sheet 26, a first bottom sheet 27, a limiting sheet 28, a button cell 29, a first spring 30, a first guide portion 31, a first limiting portion 32, a second guide portion 33, a second limiting portion 34, a connecting strip 35, a swab head I portion 36, a swab head II portion 37, a fixing portion 38, a first slide block 39, a first slide groove 40, a second slide groove 41, a square through hole 42, a cutting knife 43, a second bottom sheet 44, a bottom sheet 45, a second slide block 46, The device comprises a second spring 47, a thin tube 48, an air bag 49, a strip-shaped window 50, an air tube 51, a pushing sheet 52, an air tube limiting sheet 53, a pneumatic rod 54, a piston 55, a connecting sheet 56, a sampling sleeve 57, a sampling wire 58, a metal wire 59 and a bearing sheet 60.

Example 1

The nasal structure and prior art sampling procedure will first be briefly described: nasal Structure referring to the midsagittal section of the nasal cavity in FIG. 1, there are lower turbinate 3, middle turbinate 5 and upper turbinate 6, and correspondingly formed lower meatus 1, middle meatus 4 and upper meatus 7. The nasopharynx swab is inserted into the nasopharynx swab from the inferior nasal passage 1, the inferior nasal passage 1 is a passage surrounded by the hard palate 9, the soft palate 10, and the inferior turbinate 3, one end of the inferior nasal passage 1 opens into the nasal vestibule 2 (the opening is referred to as the entrance of the inferior nasal passage 1), and the other end opens into the nasopharynx 8. The procedure for sampling the nasopharynx 8 using a prior art nasopharynx swab is as follows: inserting the head of the nasopharyngeal swab into the inferior nasal passage 1 through the nostril and the nasal vestibule 2 until the head of the nasopharyngeal swab reaches the nasopharyngeal part 8, staying for a period of time, slightly rotating the nasopharyngeal swab, taking out the nasopharyngeal swab, and completing sampling. And finally, putting the nasopharyngeal swab into a test tube containing a virus conveying culture medium, breaking the rod part of the nasopharyngeal swab, covering a test tube cover, and conveying the test tube containing the nasopharyngeal swab to a specified nucleic acid detection laboratory for detection. As can be seen from fig. 1, the nasal cavity is complicated and if an inexperienced person performs the sampling (e.g. self-help sampling), the nasopharyngeal swab may be inserted into the wrong cavity, for example, into the nasal cavity in a direction parallel to the face (which should be perpendicular to the face), so that the head of the nasopharyngeal swab cannot reach the nasopharyngeal portion 8, and the sampling fails. In addition, the patient (or suspected patient) to be sampled often has some symptoms of discomfort (e.g. upper respiratory tract infection), swelling inside the nasal cavity, which causes more difficulty and hindrance to find the correct nasopharyngeal swab insertion path and to insert the nasopharyngeal swab into the lower nasal passage 1.

The guide structure is added on the basis of the nasopharyngeal swab in the prior art, so that the nasopharyngeal swab self-service collection suit is formed. Nasopharyngeal swabs are well known in the art and will not be described in detail, and their general structure is shown in fig. 2, which includes three parts, a swab head 11, a connecting rod 12 and a swab handle 13. Wherein the connecting rod 12 is made of PVC material, the connecting rod 12 made of PVC material has certain hardness and can support and push the swab head 11 to enter the nasopharynx part 8 through the passage in the nasal cavity, and the connecting rod 12 made of PVC material has certain flexibility and can be slightly bent to adapt to the shape of the passage in the nasal cavity.

Since it is generally difficult for a patient who is inexperienced in sampling (suspected patient) to find the opening of the inferior nasal passage 1 toward the nasal vestibule 2 (i.e., the entrance of the inferior nasal passage 1), the nasopharyngeal swab is easily inserted in a direction parallel to the face, the sampling site is wrong, and the sampling in the nasopharyngeal portion 8 cannot be achieved. The guide structure of this embodiment may assist the patient (suspected patient) in finding the opening of the inferior meatus 1 towards the nasal vestibule 2. And the inner wall of the nasal vestibule 2 is distributed with more vibrissa near the nostril, more secretion containing pollutants (dust, bacteria, virus and the like) is adsorbed on the vibrissa, if the swab head 11 is infected with the secretion containing the pollutants, the sampling and detection result can be influenced, and the detection accuracy is reduced. Moreover, after the swab head 11 is stained with secretion containing pollutants, the swab head penetrates into the nasopharynx part 8, so that pathogenic substances such as bacteria and viruses can be brought to the nasopharynx part 8 by the swab head 11, and infection can be caused. In addition, since many sensory nerve endings are distributed near the nostrils and on the inner wall of the nasal vestibule 2, the wiper head 11 may irritate the nasal cavity of a patient (suspected patient), which may cause reactions such as sneezing and nasal secretion increase, thereby affecting smooth sampling. If the patient (suspected patient) has symptoms of upper respiratory infection and the nasal cavity is swollen, this further increases the difficulty of inserting the nasopharyngeal swab deep into the inferior nasal passage 1.

As shown in fig. 3 and 4, the guiding structure (made of soft silica gel material) of the present solution includes two guiding substructures (a first guiding substructure and a second guiding substructure), and each guiding substructure includes a tubular guiding portion and a limiting portion, which are bent (half-C-shaped). More specifically, the first guide substructure includes a first guide portion 31 and a first stopper portion 32 that are integrally formed, and the second guide substructure includes a second guide portion 33 and a second stopper portion 34 that are integrally formed. The first guide portion 31 and the second guide portion 33 are both C-shaped bent pipes, and the first stopper portion 32 and the second stopper portion 34 are both flared. The bottom ends of the first limiting part 32 and the second limiting part 34 are connected together through a connecting strip 35, and the connecting strip 35, the first limiting part 32 and the second limiting part 34 are integrally formed. When in use, the first guide part 31 and the second guide part 33 of the guide structure are inserted into the nostrils at both sides, and because the first guide part 31 has a length of about 1cm and a curvature, if the opening of the first guide part 31 at the end far away from the first limiting part 32 is inserted into the nostril towards the face of the patient (suspected patient), the opening can be inserted into the entrance of the lower nasal meatus 1. The second guide portion 33 is identical to the first guide portion 31. The first and second stoppers 32 and 34 prevent the first and second guide portions 31 and 33 from being inserted too deeply into the nostrils. After the guiding structure is inserted into the nostril, the nasopharynx swab is used for sampling, the swab head 11 is penetrated into the first limiting part 32, and the swab head 11 can be smoothly penetrated into the lower nasal passage 1 through the guiding function of the guiding structure. The guide structure functions as follows: assisting the patient (suspected patient) to find the entrance of the inferior nasal passage 1; preventing contaminants near the nostrils and on the inner wall of the nasal vestibule 2 from contaminating the swab head 11; preventing the swab head 11 from irritating the nasal cavity (particularly the nasal cavity near the nasal vestibule 2).

Example 2:

this embodiment is substantially the same as embodiment 1 except that the nasopharyngeal swab of the prior art is modified in this embodiment.

The nasopharyngeal swab self-service collection suit comprises a nasopharyngeal swab shown in figure 5, wherein the nasopharyngeal swab comprises a swab head 11, a connecting rod 12 and a swab handle 13. The connecting rod 12 is a hollow cylindrical straight tube with two open ends, the connecting rod 12 is made of PVC material, and can support and push the swab head 11 to enter the nasopharynx 8 through the passage in the nasal cavity shown in figure 1, and the connecting rod 12 made of PVC material has certain flexibility and can be slightly bent to adapt to the shape of the passage in the nasal cavity. The swab head 11 comprises a cylindrical tubular central rod 14 open at both ends, as shown in figure 6, the material and diameter of the central rod 14 being identical to those of the connecting rod 12, in this case the central rod 14 and the connecting rod 12 are integrally formed. The sponge layer 15 is wrapped outside the center rod 14 (namely, the outer layer of the swab head 11 is the sponge layer 15), in order to prevent the sponge layer 15 from falling off, the sponge layer 15 is bonded with the center rod 14, and the length of the center rod 14 covered by the sponge layer 15 is 2 cm. A first circular top plate 16 is fixedly bonded to one end of the central rod 14 away from the connecting rod 12, and a first through hole 17 is formed in the center of the first top plate 16. An indicator light 19 is adhesively fixed on the upper surface of the first top sheet 16, the indicator light 19 is electrically connected with a first lead wire 20 and a second lead wire 21, and the first lead wire 20 and the second lead wire 21 both penetrate through the first through hole 17 and enter the interior of the center rod 14. The exterior of the indicator light 19 is covered with a spherical cover 18, and the spherical cover 18 is made of transparent PC plastic. The spherical cap 18 is hemispherical and has a smooth outer surface, which facilitates the passing of the swab head 11 in the nasal cavity and prevents the tip of the swab head 11 from stabbing the inner wall of the nasal cavity.

The swab handle 13 is constructed as shown in fig. 7, in which the swab handle 13 is surrounded by a cylindrical swab handle side wall 22, a second top sheet 23, and a first back sheet 27, and the swab handle side wall 22 is bonded and fixed to the second top sheet 23 and the first back sheet 27, respectively. The center of the second top plate 23 is provided with a second through hole 24, and the first lead 20 and the second lead 21 are arranged in the second through hole 24 in a penetrating manner. The upper surface of the second top sheet 23 is bonded and fixed to the connecting bar 12, and the connecting bar 12 is communicated with the swab handle 13 through the second through hole 24. A lower metal sheet 26 is bonded to the upper surface of the first base sheet 27, a first spring 30 is welded to the upper side of the lower metal sheet 26, and the lower metal sheet 26 and the first spring 30 are electrically connected. An upper metal sheet 25 is provided above the lower metal sheet 26, the periphery of the upper metal sheet 25 is inserted into the inner surface of the swab handle side wall 22, and the upper metal sheet 25 is bonded to the swab handle side wall 22. A button cell 29(TELESKY AG4, 6.8mm diameter, 2.6mm thickness with positive electrode facing up) was placed between the lower 26 and upper 25 metal sheets. The lower metal sheet 26 is electrically connected to the first conductive line 20, the upper metal sheet 25 is provided with a hole (not shown) through which the first conductive line 20 passes, the upper metal sheet 25 is insulated from the first conductive line 20, and the second conductive line 21 is electrically connected to the upper metal sheet 25. A limiting sheet 28 is arranged between the button battery 29 and the upper metal sheet 25, and a hole for the limiting sheet 28 to penetrate through is arranged on the swab handle side wall 22. When the swab is not used, the limiting sheet 28 is isolated between the button battery 29 and the upper metal sheet 25, the circuit is not electrified, and the indicator lamp 19 is not on. When the nasopharyngeal swab is needed to be used for sampling, the limiting sheet 28 is only needed to be drawn out.

The new set of autonomous collection of coronavirus nasopharyngeal swab of this scheme still includes the test tube of area lid, contains virus culture solution in the test tube of area lid. A new coronavirus nasopharyngeal swab autonomous collection kit contains two nasopharyngeal swabs, and sampling accuracy is improved because bilateral sampling is required. In addition to the test tube and nasopharyngeal swab, the set contains two pieces of alcohol cotton for the convenience of the patient (suspected patient) to handle, and the hands and the nostril peripheries are wiped before use. Since the patient (suspected patient) is not familiar with the nasopharyngeal swab sampling procedure, the kit is provided with instructions for use. The nasopharyngeal swab, the test tube, the alcohol cotton and the instruction are all packaged in a packaging box.

The specific implementation process is as follows: when a patient (suspected patient) needs to sample the secretion of the nasopharynx part 8, the nasopharynx swab of the scheme is taken, the swab handle 13 is held by a hand, the limiting piece 28 is taken out, the circuit is communicated, and the indicator lamp 19 is lightened. The swab head 11 is inserted from the patient's nostril (at which point the swab head 11 has been infiltrated with saline) through the guide structure (see example 1 for details), and the swab head 11 is inserted into the inferior nasal passage 1 until the swab head 11 enters the nasopharynx 8. It is often difficult for a patient with no operational experience (suspected patient) to discern whether the swab head 11 is inserted into the nasopharynx 8, at which time the patient (suspected patient) may open his mouth and face a mirror or cell phone to observe whether the pharynx has a light signal from the indicator light 19. If the light signal from the indicator light 19 is observed, this indicates that the swab head 11 has entered the nasopharynx 8 and the sampling site is correct. The nasopharynx swab 11 is left at the nasopharynx part 8 for 15-30 seconds, then the nasopharynx swab is slightly rotated left and right, the nasopharynx swab is taken out after sampling is completed, the nasopharynx swab is taken out, the nasopharynx swab is placed in a test tube containing virus culture solution (the swab head 11 is soaked in the virus culture solution), the connecting rod 12 of the nasopharynx swab is cut short by using scissors (due to the fact that a lead is arranged in the connecting rod 12, the nasopharynx swab cannot be directly broken off like a common swab), and single-side sampling is completed. And sampling the other nostril by the same method, covering a test tube cover after double-side sampling, completing sampling, and conveying the sample to a designated detection laboratory for nucleic acid detection.

The swab handle 13 has a diameter larger than that of the stem 12, and the sum of the lengths of the stem 12 and the center rod 14 is about 6 cm. This also indicates that the swab head 11 has reached the nasopharynx 8 after the upper surface of the swab handle 13 has contacted the alar. The swab handle 13 not only facilitates holding and placing the battery, but also prompts the insertion depth of the nasopharyngeal swab. The dual means of indicating insertion depth by the swab handle 13 and the indicator light 19, to indicate to the patient (suspected) that the swab head 11 has entered the nasopharynx 8, ensures that sampling is performed in the correct position.

Example 3

This embodiment is substantially the same as embodiment 2, differing in the structure of the wiper head 11, in this embodiment the wiper head 11 is arranged in a curved configuration, as shown in figure 8, the wiper head 11 comprising a wiper head I36 and a wiper head II 37, the two being at an obtuse angle. More specifically: the center pole 14 includes a first pole part and a second pole part (not shown) which are integrally formed, and an obtuse angle is formed between the first pole part and the second pole part, and then a sponge layer 15 is coated outside the center pole 14 with a bend. In use, the swab head 11 is inserted into the inferior meatus 1 with the swab head I36 facing downward and the swab head II 37 perpendicular to the human face. Since the soft palate 10 has a curvature, the wiper head 11 is curved to better conform to the curvature of the soft palate 10. Compared with a straight swab head 11, the swab head 11 can be inserted into the nasopharynx part 8, and the sampling is more accurate. In addition, the indicator lamp 19 of the wiper head 11 which is bent according to the scheme can be pointed to the epiglottis of the patient (suspected patient), and when the mouth is opened, the optical signal of the indicator lamp 19 is easier to observe.

Example 4

This embodiment is basically the same as embodiment 1, except that a cutting structure is provided in order to facilitate breaking the connecting rod 12. Since the first wire 20 and the second wire 21 are inserted into the connecting rod 12, the connecting rod 12 cannot be broken by direct breaking, and the connecting rod 12 can be cut by additional cutting tools such as scissors or a knife. In this embodiment, the swab handle 13 has a battery, and the battery is disposed of in a different manner from other medical wastes, so that it is necessary to dispose the swab handle 13 having the battery separately from other parts. Therefore, the present embodiment is particularly provided with a cutting structure, as shown in fig. 9, the cutting structure includes a fixing portion 38 and two left and right first sliders 39. The fixing portion 38 is a cylindrical structure, and as shown in fig. 12, the left and right sides of the lower surface of the fixing portion 38 are respectively provided with first sliding grooves 40, and the first sliding grooves 40 on the left and right sides are distributed in axial symmetry with the central axis of the fixing portion 38 as the symmetry axis. The upper and lower sides of the first sliding groove 40 are provided with second sliding grooves 41. A rectangular through hole 42 is formed in the center of the fixing portion 38, and the rectangular through hole 42 allows the connection rod 12 to pass therethrough. As shown in fig. 9 and 13, the lower surface of the fixing portion 38 is bonded and fixed to the wiper handle 13, specifically, the lower surface of the fixing portion 38 is bonded and fixed to the upper surface of the second top sheet 23, and the square through hole 42 communicates with the second through hole 24. As shown in fig. 14, the first slider 39 is slidably connected to the first runner 40, the second slider 46 is integrally formed on the upper side and the lower side of the first slider 39, the second slider 46 slides in the second runner 41, the second slider 46 is fixedly bonded with the second spring 47, and one end of the second spring 47, which is far from the corresponding second slider 46, is fixedly bonded to the side wall of the second runner 41. As shown in fig. 9, the lower surface of the first slider 39 is flush with the lower surface of the fixing portion 38. As shown in fig. 10, a cutting knife 43 is fixed to one end of the first slider 39 close to the connecting rod 12 (the cutting knife 43 is inserted into the first slider 39 and bonded in the first slider 39), and the left and right cutting knives 43 are located on the same horizontal plane. In this scheme, connecting rod 12 is through tubule 48 and swab handle 13 intercommunication, specifically is: a circular second bottom sheet 44 is bonded below the connecting rod 12, a bottom sheet through hole 45 is arranged at the circle center of the second bottom sheet 44, the lower surface of the second bottom sheet 44 is bonded with a thin tube 48, and the lower end of the thin tube 48 is bonded with the second top sheet 23. The blade points of the left and right cutting blades 43 face the thin tube 48. After sampling, the nasopharyngeal swab head 11 is inserted into the test tube, and then the first sliders 39 on the left and right sides are simultaneously pressed, the thin tube 48 is cut by the two cutting blades 43, the swab handle 13 is recovered, and the swab handle 13 is used for harmless treatment.

As shown in fig. 11, in this embodiment, four side walls of the square through hole 42 are tangent to the side walls of the connecting rod 12, and have a supporting and stabilizing effect on the connecting rod 12. The tubule 48 is more easily severed than the connecting tube, but has limited strength and may bend irreversibly during use, rendering the sampling process inoperable. The provision of the cut-off structure (the square through hole 42) can prevent the narrow tube 48 from being bent irreversibly due to the limit action of the square through hole 42. And when the cutting, because the connecting rod 12 is spacing, the tubule 48 fixed with connecting rod 12 is fixed between two cutting knives 43, can not take place the displacement, can realize more stable effectual cutting.

In the scheme, as shown in fig. 9, the diameter of the fixing part 38 is larger than that of the swab handle 13, and the fixing part 38 is expanded and can be clamped outside the nostril, so that the depth of the swab head 11 inserted into the nasal cavity of a patient (suspected patient) can be effectively prompted, the patient (suspected patient) can be prevented from continuously inserting the nasopharynx swab into the nasal cavity, and the nasal cavity can be prevented from being damaged by sampling operation. In addition, the cutting structure of the present embodiment can also be directly applied to a nasopharyngeal swab of the related art (e.g., the nasopharyngeal swab of embodiment 1).

Example 5

This example is an improvement over example 1, and the specific structure of the nasopharyngeal swab is modified to optimize the sampling process. As shown in fig. 15-17. As shown in figure 15, the swab head 11 comprises a hollow central stem 14, the upper portion of the central stem 14 being open, and a connecting tab 56 adhesively secured to the lower portion of the central stem 14. The connecting sheet 56 is provided with a through hole, an air pipe 51 (silica gel hose) passes through the through hole, and the air pipe 51 is adhered and fixed on the connecting sheet 56. The lower surface of the connecting piece 56 is fixedly bonded with the connecting rod 12. The upper end bonding of trachea 51 is fixed with spacing piece 53 of trachea, also is equipped with the through-hole in the spacing piece 53 of trachea, and sliding connection has the promotion structure in this through-hole, specifically is: the pushing structure comprises a pushing sheet 52, a pneumatic rod 54 and a piston 55 which are integrally formed. The piston 55 is positioned in the air pipe 51, the piston 55 is connected with the inner wall of the air pipe 51 in a sliding and sealing way, the pneumatic rod 54 is arranged in a through hole in the air pipe limiting sheet 53 in a penetrating way, and the pushing sheet 52 is connected with a brush-shaped sampler. The brush sampler comprises a sampling sleeve 57 and a wire 59. The sampling cover 57 of cotton is established and is bonded on wire 59, and the soft deformation of wire 59, sampling cover 57 include the sampling silk 58 of cotton, and the cotton thread of the sampling cover 57 of weaving stretches out outward and forms sampling silk 58 promptly. One end of the wire 59 is adhesively fixed to the push plate 52. The air tube 51 extends through the entire connecting rod 12 and passes through the swab handle 13 (as shown in fig. 16 and 17). The swab handle 13 is formed by enclosing a cylindrical swab handle side wall 22, a second top sheet 23 and a first bottom sheet 27, and the swab handle side wall 22 is bonded and fixed to the second top sheet 23 and the first bottom sheet 27, respectively. The second through hole 24 is arranged at the circle center of the second top plate 23, the air tube 51 penetrates through the second through hole 24, the air bag 49 is communicated with the lower end of the air tube 51, and the air tube 51 is fixedly bonded with the air bag 49 (the air tube 51 and the air bag 49 form a power structure). As shown in fig. 16, the wiper handle 13 is provided with two left and right strip windows 50, and the user can press the airbag 49 through the strip windows 50. In this embodiment, the center rod 14 is not covered by any sponge or the like, so as to minimize irritation to the nasal cavity. The distance from the top of the center rod 14 to the top of the swab handle 13 was 5cm, and when the top of the center rod 14 approached the nasopharynx 8, the air bag 49 was pressed to push the brush-shaped sampler out of the swab head 11 and maintain the state of pressing the air bag 49, so that the brush-shaped sampler was maintained in the nasopharynx 8 for a while (after 15-20 seconds, the swab handle 13 was rotated for three weeks) and sampling was carried out sufficiently. The air bag 49 is then released and the brush sampler is again retracted into the central rod 14. Thus, the sampling is completed, and the brush-shaped sampler can not contact with the inner wall of the nasal passage in the process of taking out the nasopharyngeal swab, so that the pollution of the inner wall of the nasal passage to the sample on the brush-shaped sampler is reduced.

Example 6

This embodiment is basically the same as embodiment 5, but is different from embodiment 5 in that an indicator lamp 19 as in embodiment 2 is added to this embodiment, and the specific structure is as follows: as shown in fig. 18, a carrier sheet 60 is integrally formed on the top of the center bar 14, and the indicator lamp 19 is bonded and fixed to the upper side of the carrier sheet 60. Because the sampling wires 58 on the brush-mounted sampler are cotton and soft, the sampling wires 58 of the brush-mounted sampler deform when passing through the bearing sheet 60, and the whole brush-mounted sampler cannot be clamped in the central rod 14. As shown in fig. 19, a battery is further provided below the airbag 49, specifically as follows: a lower metal sheet 26 is bonded to the upper surface of the first base sheet 27, a first spring 30 is welded to the upper side of the lower metal sheet 26, and the lower metal sheet 26 are electrically connected. An upper metal sheet 25 is provided above the lower metal sheet 26, the periphery of the upper metal sheet 25 is inserted into the inner surface of the swab handle side wall 22, and the upper metal sheet 25 is bonded to the swab handle side wall 22. A button cell 29(TELESKY AG4, 6.8mm diameter, 2.6mm thickness with positive electrode facing up) was placed between the lower 26 and upper 25 metal sheets. A limiting sheet 28 is arranged between the button battery 29 and the upper metal sheet 25, and a hole for the limiting sheet 28 to penetrate through is arranged on the swab handle side wall 22. The button cell 29 is electrically connected to the indicator light 19 in a manner known in the art. When the swab is not used, the limiting sheet 28 is isolated between the button battery 29 and the upper metal sheet 25, the circuit is not electrified, and the indicator lamp 19 is not on. When the nasopharyngeal swab is needed to be used for sampling, the limiting sheet 28 is only needed to be drawn out.

While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the embodiments and that various changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention. These should also be considered as the scope of protection of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent. The techniques, shapes, and structural parts, which are omitted from the description of the present invention, are all known techniques.

Claims (10)

1. Suit is gathered by oneself to nasopharynx swab, including the nasopharynx swab, its characterized in that still includes guide structure, guide structure includes direction substructure, the direction substructure is including the tubulose guide part of buckling the setting, the guide part is used for in the leading-in nasal passage down of nasopharynx swab.

2. The nasopharyngeal swab self-service collection kit of claim 1, wherein the guide substructure further comprises a stop portion, the stop portion being located at an end of the guide portion distal from the entrance to the inferior meatus.

3. A nasopharyngeal swab self-service collection kit according to claim 2, wherein said guide substructures are two in number.

4. The nasopharyngeal swab self-service collection kit of claim 3, wherein the guiding structure is made of silica gel.

5. A nasopharyngeal swab self-service collection kit according to any one of claims 1-4, wherein said nasopharyngeal swab comprises a swab head, the top of said swab head being provided with an indicator light.

6. The nasopharyngeal swab self-service collection kit of claim 5, wherein said indicator light is covered by a spherical cover.

7. The nasopharyngeal swab self-service collection kit of claim 5, wherein a brush sampler is disposed within said swab head, said brush sampler being slidably connected to an inner wall of said swab head.

8. The nasopharyngeal swab self-service collection kit of claim 7, wherein said nasopharyngeal swab further comprises a push structure and a power structure; one end of the brush-shaped sampler is fixed on the pushing structure, the power structure comprises an air pipe and an air bag, and the pushing structure comprises a piston; the piston is connected with the inner wall of the air pipe in a sliding and sealing way.

9. A nasopharyngeal swab self-service collection kit according to any one of claims 6-8, wherein said nasopharyngeal swab further comprises a connecting rod for connecting a swab head and a swab handle; the diameter of the wiper handle is larger than that of the connecting rod, and a power supply is arranged in the wiper handle.

10. The nasopharyngeal swab self-service collection kit of claim 6, wherein said swab head comprises a swab head I and a swab head II, wherein there is an obtuse angle between the swab head I and the swab head II.

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