CN212394964U

CN212394964U - Mask type exhaled gas/droplet sample collecting device

Info

Publication number: CN212394964U
Application number: CN202020625667.1U
Authority: CN
Inventors: 高庆伟; 张勇
Original assignee: DALIAN SIXTH PEOPLE'S HOSPITAL
Current assignee: DALIAN SIXTH PEOPLE'S HOSPITAL
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-01-26
Anticipated expiration: 2030-04-23

Abstract

The utility model provides a face guard formula expired air/droplet sample collection system, belongs to medical detection instrument field, treats the problem that the person of measureing is independent, convenient collection to expired air or droplet in order to solve, including expired air filter equipment, expired air filter equipment includes box body and draw-in groove, and the box body is installed in the position that the respirator main part corresponds the mouth nose, and connects in the respirator main part the surface of position, the box body cover are the open region in the region of respirator main part surface, and the inside slotted hole that opens out and to hold the draw-in groove of box body, and the box body also has one side opening to be the draw-in groove opening, and the draw-in groove can be by the draw-in groove opening embedding box body in the slotted hole inside, and the draw-in groove is the recess frame, and has zigzag folding polyester fiber filter membrane in the recess frame.

Description

Mask type exhaled gas/droplet sample collecting device

Technical Field

The utility model belongs to medical detection apparatus field relates to a face guard formula expired gas/droplet sample collection system.

Background

Respiratory tract infectious diseases finish the infectious process by spreading pathogenic microorganisms in the surrounding air through exhaled air, and respiratory tract etiology detection refers to detection aiming at respiratory tract pathogens entering human bodies by adopting a medical detection technical means, and aims to determine the occurrence and the nature of respiratory tract pathogen infection, provide a proper treatment scheme at the early stage of diseases, and adopt effective preventive measures to prevent harm caused by infection transmission. This new pandemic coronary pneumonia is spread via respiratory droplets and close contact. The new coronavirus enters into the body through respiratory tract and propagates in lung to support airway mucous epithelium and alveolus epithelium, finally invade lung tissue, and then the virus is discharged out of body through exhaled air (or dry cough) to pollute ambient air and environment. In the process of preventing and controlling the novel coronavirus pneumonia, how to realize early discovery, early diagnosis, early isolation and early treatment is the key point of prevention and control work. The selection of the appropriate specimen type, the correct collection method and the timing are very important to improve the detection sensitivity. At present, aiming at pathogen detection results such as a pharyngeal swab, a nasal swab, a nasopharyngeal extract, sputum, an airway extract, alveolar lavage fluid and the like obtained in the sampling process of an upper respiratory tract specimen of a suspected (confirmed) patient, the detection positive rate is not high (about 40-50%) due to the limitation of sampling conditions, and the detection rate of the alveolar lavage fluid of the lower respiratory tract specimen is high. The transmission route of the novel coronavirus pneumonia is to take exhaling droplets as transmission media. The human respiratory process includes three interrelated links: external breathing, including lung ventilation and pulmonary ventilation; transport of gas in blood; internal respiration refers to the exchange of gas between the tissue cells and the blood. While breath sampling diagnostics have been previously attempted, they have been increasingly replaced by invasive venous and bronchoscopic sampling tests due to contamination, sample loss, etc., but for elderly and pediatric patients, they may feel uncomfortable or even impossible to complete because of the needles and bronchoscopes. Therefore, the exhaled air of suspected patients and confirmed patients should be lower respiratory tract specimens with high positive rate, but how to collect lower respiratory tract specimens with high virus content is a key link for improving the positive rate of detection at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the person of treating the survey is independent, convenient to expired gas or droplet collection, the utility model provides a following technical scheme: the utility model provides a face guard formula expired air/droplet sample collection system, includes respirator main part, one-way admission valve and ear-hang, and one-way admission valve is installed in the respirator main part, and two edge sides in the respirator main part are connected to the ear-hang, still include expired air filter equipment, and expired air filter equipment includes box body and draw-in groove, and the box body is installed in the respirator main part and is corresponded the position of mouthful nose, and connects in the respirator main part the surface of position, the box body cover are the open region in the region of respirator main part surface, and the box body is inside to be opened out the slotted hole that can the holding draw-in groove, and the box body also has one side opening to be the draw-in groove opening, and the draw-in groove can be by in the inside slotted hole of draw-.

Furthermore, the clamping groove is a concave groove made of PE materials, the concave surface of the concave groove faces the mouth and the nose when the mask is worn, the polyester fiber filter membrane is laid on the concave surface, and the polyester fiber filter membrane is folded on the concave surface in a zigzag mode.

Further, the box body is a rectangular box body, the clamping groove is a rectangular concave groove, the upper side groove plate and the lower side groove plate of the clamping groove are in sliding fit with the inner wall of the upper side groove and the inner wall of the lower side groove of the box body, the opening side of the box body is arranged on the left side or the right side of the box body, and the edge on the opening side in the left side and the right side of the clamping groove is provided with a protruding.

Furthermore, the sawtooth length of the sawtooth-shaped polyester fiber filter membrane is shorter than the length of the groove plates of the upper groove plate and the lower groove plate of the box body.

Furthermore, the length of the saw teeth of the saw-toothed polyester fiber filter membrane is less than half of the length of the groove plates of the upper groove plate and the lower groove plate of the box body.

Has the advantages that: the utility model discloses a box body and draw-in groove's cooperation can pass through draw-in groove embedding box body with the polyester fiber filter membrane inside, and the box body is connected at the surface of respirator main part, wears through the face guard, can collect in the polyester fiber filter membrane to wait measuring person's expired gas or droplet. Through the draw-in groove opening, the draw-in groove can get into and scarf joint inside the box body, and can break away from the box body after collecting, is the collection scheme of the expired gas of removable adsorbing material or droplet, and easy operation can be accomplished by the person that awaits measuring independently completely and collect to can conveniently replace the polyester fiber filter membrane in the draw-in groove and accomplish this many times of gathering of waiting for the person.

Drawings

Fig. 1 is a schematic view of the structure of the mask.

Fig. 2 is a diagram of the insertion fit of the mask clamping groove and the box body.

Fig. 3 is a front view of the card slot.

Fig. 4 is a back view of the card slot.

Fig. 5 is a cross-sectional view of the card slot.

Wherein: 1. the breathing mask comprises a breathing mask body, a box body 2, a clamping groove 3, an upper side groove plate 4, a lower side groove plate 5, an ear hook 6, a one-way air inlet valve 7, an upper side groove inner wall 8, a lower side groove inner wall 9, a polyester fiber filter membrane 10, a protruding part 11 and a concave surface 12.

Detailed Description

Example 1: as shown in fig. 1-2, a mask-style exhaled breath/droplet specimen collection device comprises: a breathing mask main body 1, a one-way air inlet valve 7, an expired air filtering device and ear-hang 6 at two sides, the exhaled air filtering device is arranged on the main body 1 of the breathing mask and comprises a box body 2, a clamping groove 3 is arranged in the box body 2, a polyester fiber filter membrane 10 is arranged in the clamping groove 3, the clamping groove 3 is a U-shaped frame made of PE materials, the polyester fiber filter membrane 10 folded in a zigzag mode is tightly attached to the inside of the frame, the polyester fiber filter membrane 10 folded in a zigzag mode is arranged in the frame, the height of the filter membrane is lower than 1/2 of the length of the frame, so that when the filter membrane is taken out of the card slot 3, the polyester fiber filter membrane 10 contacts the box body 2, the filter membrane surface area can be increased by zigzag folding, the polyester fiber is a synthetic fiber obtained by spinning polyester formed by condensation polymerization of organic diacid and dihydric alcohol, is the first large variety of the current synthetic fiber, belongs to the existing material, and the polyester fiber filter membrane 10 is the polyester fiber used as the filter membrane. The polyester fiber film has good hydrophilicity and water absorption speed, and is suitable for being used for soaking or spraying the colloidal gold. The polyester fiber filter membrane 10 has poor protein adsorption, is easy to elute, and has high filtration efficiency and low flow resistance. The frame of PE material has a handle on its outside, can take out draw-in groove 3 after the sample from box body 2, puts polyester fiber filter membrane 10 into the preservative fluid and waits to examine. The device is through setting up an ultra-high efficiency filtration membrane on respirator, polyester fiber filter membrane 10 promptly, and the polyester fiber membrane has good hydrophilicity and absorbing speed, is fit for doing colloidal gold and soaks or spouts the gold usage, and this scheme can be collected the gas of being examined exhalation/droplet sample safety in 3 minutes, accuracy, conveniently, makes things convenient for follow-up virus antigen, nucleic acid testing of carrying on, and then improves the relevance ratio, provides the basis for clinician and quarantine personnel make the diagnosis fast on next step. The device will avoid medical care and quarantine personnel because of the risk of being infected closely when keeping the upper respiratory tract sample, and this technique in case clinical verification, can change the mode of detecting new coronavirus sample rapidly, and the device is applicable to the detection of all respiratory infectious disease respiratory tract samples simultaneously.

Example 2: as shown in fig. 1-2, a mask type exhaled air/droplet specimen collecting device comprises a breathing mask main body 1, a one-way air inlet valve 7, an exhaled air filtering device and ear hangers 6, wherein the one-way air inlet valve 7 is installed near the mouth and nose corresponding to the breathing mask main body 1, the ear hangers 6 are connected to two edge sides of the breathing mask main body 1, the exhaled air filtering device comprises a box body 2 and a clamping groove 3, the box body 2 is installed at the mouth and nose corresponding to the breathing mask main body 1, and is connected with the outer surface of the main body 1 of the breathing mask, the area of the box body 2 covering the outer surface of the main body 1 of the breathing mask is an opening area, a slot hole capable of containing the clamping groove 3 is arranged in the box body 2, the opening of one side of the box body 2 is an opening of the clamping groove 3, the clamping groove 3 can be embedded into the slot hole in the box body 2 through the opening of the clamping groove 3, the clamping groove 3 is a groove frame, and a zigzag folded polyester fiber filter membrane 10 is arranged in the groove frame. In the scheme, through the matching of the box body 2 and the clamping groove 3, the polyester fiber filter membrane 10 can be embedded into the box body 2 through the clamping groove 3, the box body 2 is connected on the outer surface of the breathing mask main body 1, the connecting area of the box body 2 covers part of the outer surface of the breathing mask main body 1, the area of the box body 2 of the part is open, an air flow channel of breath is ensured in the breathing mask main body 1 and the box body 2, exhaled air and spray can permeate the breathing mask main body 1 through the opening of the box body 2 of the connecting area and reach the inside of the box body 2 through the opening of the box body 2, and are adsorbed by the polyester fiber filter membrane 10 in the clamping groove 3 in the box body 2, and through the opening of the clamping groove 3, the clamping groove 3 can enter and be embedded in the box body 2, and can be separated from the box body 2 after collection is finished, so that the collection scheme of the, the operation is easy, the collection can be completely and independently completed by a person to be measured, and the polyester fiber filter membrane 10 in the clamping groove 3 can be conveniently replaced to complete the collection of the person to be measured for many times.

Preferably, as shown in fig. 2, the fastening groove 3 is a concave groove made of PE material, a concave surface 12 of the concave groove faces the mouth and nose when the mask is worn, as shown in fig. 3 and 5, the polyester fiber filter membrane 10 is laid on the concave surface 12, and the polyester fiber filter membrane 10 is folded in a zigzag shape. The zigzag folding increases the membrane surface area.

As a preferable scheme, as shown in fig. 2, the box body 2 is a rectangular box body 2, the card slot 3 is a rectangular concave slot, the upper and lower side slot plates 5 of the card slot 3 are slidably matched with the upper and lower side slot inner walls 9 of the box body 2, the opening side of the card slot 3 of the box body 2 is on the left side or the right side of the box body 2, only one side of the card slot 3 is open, and the influence of the opening on the sealing performance of the inner space of the box body 2 can be reduced.

In a preferred scheme, connect a box casing at 2 panels of box body through the hinge, get into the inside back of casing at draw-in groove 3, rotate the box casing, seal 3 opening sides of draw-in groove of box body 2 through the box casing to collect the leakproofness of in-process better. Or, the plug board is arranged, the terminal of the box body 2 is provided with a jack, and the plug board is inserted into the jack after the clamping groove 3 enters the shell, so that the sealing performance in the collection process is better.

As shown in fig. 3 and 4, the edges of the left and right sides of the card slot 3 on the opening side have projections 11. The protrusion 11 can perform a function of a handle, i.e., it is convenient to pull the card slot 3 out of the inside of the box body 2 through the protrusion 11.

As a preferable mode, as shown in FIG. 5, the serrated polyester fiber filter membrane 10 has a serration length shorter than the groove plate lengths of the upper and

lower groove plates

4 and 5 of the case body 2. More preferably, the zigzag polyester fiber filter membrane 10 has a length of not more than half of the lengths of the upper and

lower plates

4 and 5 of the case 2. This scheme can avoid when taking draw-in groove 3 out, polyester fiber filter membrane 10 contacts box body 2.

The above description is only for the purpose of creating a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. A mask type exhaled gas/droplet specimen collecting device comprises a breathing mask main body (1), a one-way air inlet valve (7) and an ear hook (6), wherein the one-way air inlet valve (7) is installed on the breathing mask main body (1), the ear hook (6) is connected to two edge sides of the breathing mask main body (1), the mask type exhaled gas/droplet specimen collecting device is characterized by further comprising an exhaled gas filtering device, the exhaled gas filtering device comprises a box body (2) and a clamping groove (3), the box body (2) is installed at a position, corresponding to the mouth and the nose, of the breathing mask main body (1) and is connected to the outer surface of the position of the breathing mask main body (1), an area, covered on the outer surface of the breathing mask main body (1), of the box body (2) is an opening area, a slotted hole capable of containing the clamping groove (3) is formed in the box body (2), an opening on one side of the box body (2) is an opening of the clamping, the clamping groove (3) is a groove frame, and a zigzag folded polyester fiber filter membrane (10) is arranged in the groove frame.

2. A mask-type exhaled air/droplet specimen collection device according to claim 1, wherein the notch (3) is a concave groove made of PE material, the concave surface (12) of the concave groove faces the mouth and nose when the mask is worn, the polyester fiber filter membrane (10) is laid on the concave surface (12), and the polyester fiber filter membrane (10) is folded in a zigzag manner on the concave surface (12).

3. A mask-type exhaled air/droplet specimen collection device according to claim 2, wherein the case body (2) is a rectangular case body (2), the card slot (3) is a rectangular concave slot, upper and lower side slot plates (5) of the card slot (3) are slidably fitted to upper and lower side slot inner walls (9) of the case body (2), the opening side of the case body (2) is on the left or right side of the case body (2), and the edge of the card slot (3) on the opening side in the left and right sides has a protrusion (11).

4. A mask-type exhaled breath/droplet specimen collecting device according to claim 3, wherein the serrated polyester fiber filter membrane (10) has a serration length shorter than those of the upper side grooved plate (4) and the lower side grooved plate (5) of the case body (2).

5. A mask-type exhaled breath/droplet specimen collection device according to claim 4, wherein the length of the saw-toothed polyester fiber filter membrane (10) is less than half of the length of the upper side grooved plate (4) and the lower side grooved plate (5) of the case (2).