CN111227872A

CN111227872A - Throat swab

Info

Publication number: CN111227872A
Application number: CN202010144088.XA
Authority: CN
Inventors: 唐宇凤; 唐宇波; 王科; 徐维国; 王东; 鲜于剑波; 何梅
Original assignee: Mianyang Central Hospital
Current assignee: Mianyang Central Hospital
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-06-05

Abstract

The invention provides a throat swab, comprising: a sampling assembly comprising a swab head and a swab rod, the swab head disposed at a first end of the swab rod; the protective umbrella takes the swab rod as an umbrella handle and can be spread in a direction back to the swab head. When carrying out pharynx swab sample collection to the patient, the position department of being close to patient mouth nose sets up the protection umbrella and can carry out effective separation to the droplet and the aerosol that the patient splashes to effectively reduce the exposure risk of medical personnel and the pollution of patient to the surrounding environment of collection process, simple structure, the protecting effect is good.

Description

Throat swab

Technical Field

The invention relates to the technical field of medical detection, in particular to a throat swab.

Background

The pharyngeal swab test is a method of detecting the type of a pathogen of a respiratory disease by swabbing a small amount of a secretion sample from the oropharynx and nasopharynx of a human body. Since the prevalence of new coronavirus infection, the national health committee promulgates multiple versions of novel diagnosis and treatment schemes for coronavirus pneumonia, and each version of diagnosis and treatment scheme adopts positive detection of virus nucleic acid as a diagnosis standard for confirmed cases. Because the positive rate of nucleic acid detection of the pharyngeal swab sample is higher than that of a blood sample, the pharyngeal swab sampling is the most widely applied in the current sampling mode of viral nucleic acid, and many clinical medical institutions require patients with fever clinics to collect the pharyngeal swab sample to detect the viral nucleic acid.

Traditional pharynx swab collection mode is divided into oropharynx swab and nasopharynx swab two kinds: the former uses terylene or calcium alginate swab, when the mouth of a patient makes an 'o' sound, the tongue crosses the root of the tongue to the rear wall of the pharynx, the tonsil recess, the side wall and the like for collection, and an auxiliary tongue depressor is needed when necessary; the latter is rotary collection using dacron or calcium alginate swab to enter nasopharynx from nostril for a moment. Medical personnel need go on with the positive relative direct vision of patient during the collection, and the patient is in the sampling process and easy appearance nausea, vomiting, chocks and sneezes, leads to the sampling in-process patient to erupt a large amount of droplets and aerosol towards medical personnel, has all brought very big virus propagation risk for medical personnel and the crowd of patient's surrounding environment.

Disclosure of Invention

The invention aims to provide a throat swab, which can effectively block spray and aerosol sprayed by a patient in the process of collecting a throat swab sample, so that the risk of virus transmission is effectively reduced.

In order to achieve the above object, the present invention provides a throat swab comprising:

a sampling assembly comprising a swab head and a swab rod, the swab head disposed at a first end of the swab rod;

the protective umbrella takes the swab rod as an umbrella handle and can be spread in a direction back to the swab head. Optionally, the throat swab further comprises a push rod and a sleeve, a first end of the push rod penetrates through the sleeve and the center of the protective umbrella and then is connected with a second end of the swab rod, the sleeve is connected with an umbrella cover of the protective umbrella through at least two connecting ropes, and the sleeve can axially move relative to the push rod to unfold the protective umbrella.

Optionally, the distance from the joint of the connecting rope and the umbrella cover to the center of the protective umbrella is less than the distance from the joint of the connecting rope and the umbrella cover to the edge of the umbrella cover.

Optionally, the connecting ropes are distributed at equal intervals along the circumferential direction of the umbrella cover.

Optionally, the push rod is provided with a plurality of elasticity card falcons along axial, elasticity card falcon has compression and extension two kinds of states, when elasticity card falcon is located the outer wall of push rod with between the telescopic inner wall, elasticity card falcon is in the compression state, the sleeve is relative the push rod moves to when elasticity card falcon exposes the sleeve, elasticity card falcon is in the extension state.

Optionally, the resilient tennons have a cross-sectional width perpendicular to the axial direction of the push rod that increases progressively in a direction towards the swab head.

Optionally, a button is disposed at the second end of the push rod, and a cross-sectional area of the button in a direction perpendicular to the axial direction of the push rod is larger than a cross-sectional area of the push rod in a direction perpendicular to the axial direction of the push rod.

Optionally, the resilient clamping falcon moves relative to the sleeve by a distance equal to the minimum distance from the button to the sleeve.

Optionally, the wiper rod is provided with a break-off notch, the distance from the break-off notch to the first end of the wiper rod being less than the distance from the break-off notch to the second end of the wiper rod.

Optionally, the umbrella fabric of the protective umbrella is a transparent antifogging film.

The throat swab provided by the invention comprises: a sampling assembly comprising a swab head and a swab rod, the swab head disposed at a first end of the swab rod; the protective umbrella takes the swab rod as an umbrella handle and can be spread in a direction back to the swab head. When carrying out pharynx swab sample collection to the patient, the position department of being close to patient mouth nose sets up the protection umbrella and can carry out effective separation to the droplet and the aerosol that the patient splashes to effectively reduce the exposure risk of medical personnel and the pollution of patient to the surrounding environment of collection process, simple structure, the protecting effect is good.

Drawings

FIG. 1 is a schematic view of a throat swab provided in accordance with an embodiment of the present invention, shown in an unused configuration;

FIG. 2 is a schematic view of a throat swab as provided by an embodiment of the present invention in use;

wherein the reference numerals are:

10-swab head; 20-swab bar; 30-protective umbrella; 40-a push rod; 50-a sleeve; 60-connecting ropes; 70-a button; 80-elastic clamping falcon; 90-break the notch.

Detailed Description

The following describes in more detail embodiments of the present invention with reference to the schematic drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 1 and 2, the present embodiment provides a pharyngeal swab, including:

a sampling assembly comprising a swab head 10 and a swab rod 20, the swab head 10 being disposed at a first end of the swab rod 20;

the protective umbrella 30 is provided with the swab rod 10 as an umbrella handle and can be opened in a direction away from the swab head 20.

Specifically, the sampling assembly can extend into the throat or rhinitis of the patient to collect secretions. The swab rod 20 may be made of polyvinyl chloride plastic, and is inexpensive and chemically stable. The swab head 10 is made of polyester fiber required by the material drawing of a throat swab.

The protective umbrella 30 is used for effectively blocking spray and aerosol sprayed by a patient in a throat swab sample collection process. The protective umbrella 30 is a disposable opening article, is in a folded state before being packaged and used, and is required to be unfolded when a throat swab sample is collected. It will be appreciated that the traditional concept of protection during extraction of pharyngeal swabs is personal protection for the medical care provider, and the lack of a barrier in the environment to isolate the patient. The splashed spray and aerosol of the patient are dispersed radially, and although the medical care personnel are equipped with personal protective articles such as protective clothing, goggles and protective masks at present, the aerosol accumulation in the surrounding environment and the process of repeatedly wearing and taking off the protective articles still bring infection risks to the medical care personnel. And the pharynx swab that this application provided can carry out the near-end separation to the patient through the protection umbrella, can be effectively with the droplet and the aerosol gathering of patient splash in the protection umbrella, the separation effect is better.

In this embodiment, the protective umbrella 30 includes an umbrella cover and umbrella ribs, and the umbrella ribs are tightly attached to the inner wall of the umbrella cover. The umbrella face is transparent antifog film, transparent antifog film can be formed by adopting the preparation of PVC high-transparency film material, utilizes the transparency and the antifog of protection umbrella 30 to guarantee that medical personnel are not influenced in the realization of gathering the in-process. It is understood that the protection umbrella may be other protection patterns, such as a rectangle, an ellipse, etc., which is not limited in this application.

With continued reference to fig. 1 and 2, the throat swab further comprises a push rod 40 and a sleeve 50, wherein a first end of the push rod 40 passes through the sleeve 50 and the center of the protective umbrella 30 and then is connected to a second end of the swab rod 20, the sleeve 50 is connected to the umbrella cover of the protective umbrella 30 through at least two connecting strings 60, and the sleeve 50 can move relative to the push rod 40 to unfold the protective umbrella 30. In this embodiment, since the center of the protective umbrella 30 is fixed on the push rod 40, and the umbrella cover of the protective umbrella 30 is connected to the sleeve 50 through the connecting rope 60, when the sleeve 50 and the push rod 40 move relatively, the center of the protective umbrella 30 and the umbrella cover move relatively, so that the protective umbrella 30 is opened.

Specifically, a button 70 is disposed at the second end of the push rod 40, and a cross-sectional area of the button 70 perpendicular to the axial direction of the push rod 40 is larger than a cross-sectional area of the push rod 40 perpendicular to the axial direction thereof. The push button 70 is used to facilitate manual operation to open the protective umbrella 30. It will be appreciated that when the sleeve 50 is secured, the push rod 40 is moved, for example, downwardly, relative to the sleeve 50 by pressing the button 70, whereupon the push rod 40 will move the swab rod 20 and the protective umbrella 30 together downwardly, but since the canopy of the protective umbrella 30 is connected to the sleeve 50 by the connecting cord 60, the connecting cord 60 pulls the canopy of the protective umbrella 30 during the downward movement of the protective umbrella 30, thereby opening the canopy of the protective umbrella 30. In operation, the protective umbrella 30 can be opened by gripping or holding the outer casing of the sleeve 50 with fingers other than the thumb and then pressing the button 70 with the thumb.

Of course, the protective umbrella 30 can be opened in other manners, for example, the second end of the push rod 40 is fixed, and the sleeve 50 is moved relative to the push rod 40, for example, moved upward, so that the connecting rope 60 pulls the umbrella cover of the protective umbrella 30 upward, which can achieve the same purpose, but the present application is not limited thereto.

With reference to fig. 2, the distance from the connection point of the connecting rope 60 and the umbrella cover to the center of the protective umbrella 30 is less than the distance from the connection point of the connecting rope 60 and the umbrella cover to the edge of the umbrella cover, so that the protective umbrella 30 can be easily and completely unfolded. In this embodiment, the distance from the connection point of the connection rope 60 and the umbrella cover to the center of the protective umbrella 30 is one half of the distance from the connection point of the connection rope 60 and the umbrella cover to the edge of the umbrella cover.

Optionally, the connecting ropes 60 are distributed at equal intervals along the circumference of the umbrella cover. The umbrella cover of the protective umbrella 30 can be better opened by uniformly distributing the connecting ropes 60. In this embodiment, the number of the connecting ropes 60 is 3, and the 3 connecting ropes 60 are distributed at equal intervals along the circumferential direction of the umbrella cover. Of course, the number of the connecting strings 60 may be two, and the two connecting strings may be symmetrically arranged on both sides of the protective umbrella 30 with respect to the swab rod 20, or may be more than 2, which is not limited in this application. Also, the present application does not impose any limitation on the distribution of the connecting string 60. In the present embodiment, the connection string 60 is not limited to a flexible string, an elastic string, or a rigid string.

With continued reference to fig. 1 and 2, the push rod 40 is provided with a plurality of elastic clamping pins 80 in an axial direction, the elastic clamping pins 80 have two states of compression and extension, when the elastic clamping pins 80 are located between an outer wall of the push rod 40 and an inner wall of the sleeve 50, the elastic clamping pins 80 are in a compression state, and when the sleeve 50 moves relative to the push rod 40 until the elastic clamping pins 80 are exposed out of the sleeve 50, the elastic clamping pins 80 are in an extension state. In this embodiment, the elastic tennons 80 are used for limiting the push rod 40, when the throat swab needs to be used, the push rod 40 moves relative to the sleeve 50 by pressing the button 70, at this time, the elastic tennons 80 are in a compressed state and move along with the push rod 40, and when the push rod 40 moves until the elastic tennons 80 extend out of the sleeve 50, the elastic tennons 80 is opened due to the elasticity of the elastic tennons 80, so that the push rod 40 cannot retract into the sleeve 50 in the opposite direction, thereby realizing a limiting effect, preventing the throat swab from being restored to a state before use, and ensuring the disposability of the throat swab. It will be appreciated that the resilient clips 80 when in the compressed state provide some damping but do not prevent relative movement between the push rod 40 and the sleeve 50.

Optionally, the flexible tennons 80 are movable relative to the sleeve 50 by a distance equal to a minimum distance from the button 70 to the sleeve 50. It will be appreciated that the resilient tennons 80 are movable a distance substantially equal to the minimum distance of the button 70 from the sleeve 50 before use, i.e. the distance from the lower edge of the button 70 to the upper edge of the sleeve 50, so that after ejection of the resilient tennons 80, the push rod 40 is fully restrained, i.e. neither retracted upwardly nor moved downwardly.

With continued reference to fig. 1, the sectional width of the resilient clamps 80 perpendicular to the axial direction of the push rod 40 is gradually increased in a direction approaching the swab head 10 so that the resilient clamps 80 are exposed from the sleeve 50. In this embodiment, the flexible tennons 80 are triangular in shape.

With continued reference to figure 1, the swab rod 20 is provided with a break-off notch 90, the distance from the break-off notch 90 to the first end of the swab rod 20 being less than the distance from the break-off notch 90 to the second end of the swab rod 20. To facilitate breaking of the swab head 10. After collection, the end of the swab head 10 needs to be manually broken and placed into the sampling tube, and the swab shaft 20 is disposed of as medical waste. Since the swab head 10 is easily shaken during the manual breaking process and generates spray and aerosol, sometimes the swab rod 20 is not easily broken, and the repeated breaking operation brings inconvenience and more exposure risk to the medical staff. By breaking the notch 90, the swab head 10 can be easily broken, reducing the risk of infection for the medical staff.

In summary, embodiments of the present invention provide a throat swab, including: a sampling assembly comprising a swab head and a swab rod, the swab head disposed at a first end of the swab rod; the protective umbrella takes the swab rod as an umbrella handle and can be spread in a direction back to the swab head. When carrying out pharynx swab sample collection to the patient, the position department of being close to patient mouth nose sets up the protection umbrella and can carry out effective separation to the droplet and the aerosol that the patient splashes to effectively reduce the exposure risk of medical personnel and the pollution of patient to the surrounding environment of collection process, simple structure, the protecting effect is good.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A throat swab, comprising:

the protective umbrella takes the swab rod as an umbrella handle and can be spread in a direction back to the swab head.

2. A throat swab according to claim 1, further comprising a push rod and a sleeve, wherein a first end of the push rod is connected to a second end of the swab shaft after passing through the center of the sleeve and the protective umbrella, wherein the sleeve is connected to a canopy of the protective umbrella by at least two connecting strings, and wherein the sleeve is axially movable relative to the push rod to spread the protective umbrella.

3. The throat swab of claim 2, wherein the distance from the junction of said connecting string and said canopy to the center of said protective umbrella is less than the distance from the junction of said connecting string and said canopy to the edge of said canopy.

4. A throat swab according to claim 2 or claim 3, wherein said connecting strings are equally spaced circumferentially along said canopy.

5. The pharyngeal swab of claim 2, wherein the push rod is axially provided with a plurality of resilient retaining tenons, the resilient retaining tenons having both a compressed state and an extended state, the resilient retaining tenons being in the compressed state when the resilient retaining tenons are positioned between the outer wall of the push rod and the inner wall of the sleeve, the resilient retaining tenons being in the extended state when the sleeve is moved relative to the push rod to expose the resilient retaining tenons from the sleeve.

6. A throat swab according to claim 5, wherein the resilient tennons have a cross-sectional width perpendicular to the axial direction of the push rod which increases progressively in a direction towards the swab head.

7. A pharyngeal swab according to claim 5, wherein said second end of said push rod is provided with a button, said button having a cross-sectional area perpendicular to the axial direction of said push rod which is greater than the cross-sectional area of said push rod perpendicular to the axial direction thereof.

8. The pharyngeal swab of claim 7, wherein the resilient tennons move relative to the sleeve a distance equal to a minimum distance of the button from the sleeve.

9. A pharyngeal swab as claimed in claim 1, wherein said swab rod is provided with a break-off notch, the distance of said break-off notch from a first end of said swab rod being less than the distance of said break-off notch from a second end of said swab rod.

10. A throat swab according to claim 1, wherein the umbrella fabric of the protective umbrella is a transparent anti-fog film.