CN217187366U

CN217187366U - Mouth respirator

Info

Publication number: CN217187366U
Application number: CN202220243578.XU
Authority: CN
Inventors: 张奕晨
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-08-16
Anticipated expiration: 2032-01-29

Abstract

In order to solve the problem of fixing the mouth breathing interface and reducing or eliminating the problem of upper respiratory tract dead space, the utility model provides a mouth respirator for respiratory therapy, which comprises a mouth respirator body and a head band, wherein the mouth respirator body is a supporting and fixing device and is of a non-airtight structure, and the head band is connected to the respirator body through a locking structure to fix the mouth respirator body around the mouth of a user; a breather pipe is fixed on the mouth respirator body, the front end of the breather pipe is an air inlet pipe, and the rear end of the breather pipe is an adapter pipe; the mouth cavity air supply device further comprises an air supply pipe, the air supply pipe is hermetically connected and fixed to the adapter pipe, and the other end of the air supply pipe extends into the mouth cavity. When the treatment device is used, the air supply source of the treatment device can supply air to the oral cavity of a user through the air inlet, the switching pipe and the air supply pipe. High-flow gas enters the oral cavity and is mixed with gas in the oral cavity of a user, and under the impact of continuous airflow, carbon dioxide in the oral gas is diluted, so that the oxygen concentration is improved, and the influence of physiological dead space on the treatment effect is reduced.

Description

Mouth respirator

Technical Field

The present invention relates to a human-machine interface for respiratory therapy apparatus, and in particular to a mouth respirator having an air supply tube extending into the interior of the mouth.

Background

In recent years, nasal high-flow oxygen therapy HFNC is increasingly used in clinical practice, and nasal catheters are generally used as interfaces, and are classified into full-insertion type nasal catheters and half-insertion type nasal catheters. Research reports show that the full insertion effect is more obvious than the half insertion effect; open mouth breathing is more prone to carbon dioxide washout than closed mouth breathing. The principle is that mouth opening breathing mainly reduces the dead space of the nasal cavity in a way of nasal mouth breathing, and mouth closing breathing mainly reduces the dead space of the nasal cavity in a way of nasal breathing by supplying air at high flow to flush exhaled air. The clearance of dead space has been recognized as a key mechanism for providing respiratory support with nasal high flow oxygen therapy. However, it is difficult to apply high flow oxygen therapy to respiratory support for patients with nasal obstruction, such as deflected nasal septum or nasal obstruction. This part of the patient, mainly breathe orally, if use the nose mask of mouth to carry out the non-invasive ventilation, have dead space repeated inhalation's problem, the problem is more outstanding when patient's tidal volume is less. There is a need for a breathable human-machine interface that meets the needs of this segment of the patient. Because the high-flow oxygen therapy instrument transmits the gas subjected to lukewarm and humid treatment, namely the high-flow gas with the temperature controllable between 31 and 37 ℃, the relative humidity of 100 percent and the fixed oxygen concentration, the high-flow oxygen therapy instrument can completely use the oral respiration treatment.

In clinical treatment of nebulization, mouth-biting can be used to support oral respiration. Common nipples are smooth and rigid tubes, and some nipples can be wound with gauze on a tube nose to facilitate occlusion. The mouthpiece is not easy to fix, has larger mouth opening, is easy to fatigue masseter, and is not suitable for long-time treatment.

Disclosure of Invention

Aiming at the prior art, in order to solve the problem of fixing the mouth breathing interface and reducing or eliminating the problem of upper respiratory tract dead space, the utility model provides a mouth respirator for respiratory therapy, which comprises a mouth respirator body and a head band, wherein the mouth respirator body is a supporting and fixing device and is of a non-airtight structure, the head band is connected to the respirator body through a locking structure, and the mouth respirator body is fixed around the mouth cavity of a user; the mouth respirator body is fixed with a vent pipe, the front end of the vent pipe is an air inlet pipe, and the rear end of the vent pipe is an adapter pipe; the mouth cavity air supply device further comprises an air supply pipe, the air supply pipe is hermetically connected and fixed to the adapter pipe, and the other end of the air supply pipe extends into the mouth cavity.

In the mouth respirator, the mouth respirator body is a supporting and fixing device and is of a non-airtight structure; when the respirator body is in a mask body structure, a through hole is required to be formed in the mask body and communicated with the inner side and the outer side of the mask body, so that air can freely circulate; the head strap is connected to the respirator body by a locking structure, securing the oral respirator body about the user's mouth with the air delivery tube facing and entering the mouth. The locking structure can be the matching of a buckle and a clamping groove, and can also be the matching of a hook and a fixing ring and the like. When in use, the air supply source of the treatment equipment can supply air to the oral cavity of a user through the air inlet, the adapter tube and the air supply tube. High-flow gas enters the oral cavity and is mixed with gas in the oral cavity of a user, carbon dioxide in the oral gas is diluted under the impact of continuous airflow, the oxygen concentration is improved, and balance is achieved in the breathing dynamic state of the user.

As an improvement, a supporting support which is contacted with the face of a user is arranged on the respirator body, and a soft cushion layer is arranged on the supporting support. The supporting bracket is fixedly connected to the respirator body and can be of more than two segmented structures or a continuous annular or semi-annular structure; the support bracket is contacted with the face of a user, and plays a role in fixing and supporting the respirator body.

As another improvement, the length and position of the air delivery tube are arranged such that the distal end of the air delivery tube is adjacent to the oropharynx of the user. When a user inhales, the air supply pipe is close to the oropharynx, so that the high-flow air can be preferentially inhaled into an airway and a lung; when the user exhales, the high-flow gas of the air supply pipe can dilute and wash the exhaled gas of the user and is exhausted out of the body through the oral cavity or the nasal cavity, and fresh gas is kept near the oropharynx part.

As another improvement, the air feed pipe uses a rigid or elastic flat pipe. The air supply pipe needs to penetrate through a gap between upper and lower teeth of a user, and the round pipe is only suitable for the condition of large mouth opening due to the diameter height of the round pipe, and the air supply pipe uses a rigid or elastic flat pipe to ensure the cross sectional area of air flow passing through in order to adapt to the condition of small mouth opening.

As a further improvement, the air feed pipe uses a flexible bellows. Because the corrugated pipe has a spiral framework, certain directivity can be kept when the pipeline is short, and the corrugated pipe can point to the oropharynx; in addition, the flexible corrugated pipe has the characteristic of deforming under the action of external force, so that the flexible corrugated pipe can adapt to the condition of larger or smaller opening to a certain extent.

As a further improvement, the air feed pipe uses a flexible film, and the flexible film is provided with a flexible bracket for fixing the air feed direction of the flexible film. The film hose is matched with the flexible support, and the change range of the distance between the upper teeth and the lower teeth is larger.

As a further improvement, a left protective sleeve connecting rod and a right protective sleeve connecting rod are fixed on the respirator body, the protective sleeve connecting rods are arranged towards the oral cavity, a rigid protective sleeve is fixed at the tail end of each protective sleeve connecting rod, a through hole is formed in the middle of each protective sleeve, and an air supply pipe penetrates through the through holes of the protective sleeves. The protective sleeve can prevent the damage of the air supply pipe or the interruption of air supply of the pipeline caused by the forceful occlusion of the teeth of a user.

In conclusion, by adopting the mouth respirator, the mouth breathing interface can be stably fixed, and the air source can be directly conveyed to the oropharynx part of the user through the air supply pipe, so that the dead space of the upper respiratory tract of the user, including the oral cavity and the nasal cavity, can be effectively reduced, the flushing effect of the exhaled air is enhanced, and the risk of repeatedly inhaling the exhaled air is reduced.

Drawings

Fig. 1 is a schematic side sectional structure of a first embodiment of the present invention;

fig. 2 is a schematic front view of a first embodiment of the present invention;

fig. 3 is a schematic front view of a second embodiment of the present invention;

fig. 4 is a schematic side sectional view of a second embodiment of the present invention;

fig. 5 is a schematic top view of a second embodiment of the present invention;

in the figure, the following components are included: the mouth respirator comprises a mouth respirator body 200, an air inlet pipe 201, an adapter pipe 202, an air feed pipe 203, a left through hole 204, a right through hole 205, an upper right clamping groove 206, an upper left clamping groove 207, a lower left clamping groove 208, a lower right clamping groove 209, a support bracket 211, a cushion layer 212, a protective sleeve connecting rod 221 and a protective sleeve 222.

Detailed Description

Embodiments of the present invention will now be described with reference to the drawings, wherein like parts are designated by like reference numerals.

Fig. 1 and 2 show a first embodiment of the present invention, which comprises a mouth respirator body 200 and a head band, wherein the mouth respirator body 200 is a supporting and fixing device, is a non-airtight structure, and is of a mask type and is provided with a through hole; the head strap is provided with a buckle, the respirator body 200 is provided with a clamping groove 207, and the buckle and the clamping groove form a locking structure; the headband is connected to the respirator body 200 by a locking structure, securing the mouth respirator body 200 around the mouth of the user; a breather pipe is fixed on the mouth respirator body 200, the front end of the breather pipe is an air inlet pipe 201, and the rear end is an adapter pipe 202; also included is an air delivery tube 203, the air delivery tube 203 being hermetically connected and secured to the adapter tube 202 with the air delivery tube tip 210 extending into the oral cavity.

In order to increase the wearing comfort of the user, the mouth respirator body 200 is provided with a support bracket 211 which is in contact with the face of the user, and the support bracket is provided with a soft cushion layer 212.

To reduce the effects of oral dead space, the length and location of the air delivery conduit 203 is such that the air delivery conduit end 210 is proximate to the oropharynx of the user; as one form, the air feed pipe 203 uses a rigid or elastic flat pipe; in another form, the air feed pipe 203 uses a flexible bellows pipe; in still another form, the air feed pipe 203 uses a flexible film, and the flexible film is provided with a flexible holder for fixing the air feed direction of the flexible film. The fixing of the position of the air supply pipe in the oral cavity is related to the used material, if the air supply pipe is made of rigid and elastic materials, the shape of the air supply pipe can be ensured, so when the air supply pipe is fixed on the adapter pipe, the position direction of the air supply pipe is determined; because the corrugated pipe has a spiral framework, certain directivity can be kept when the pipeline is short, and the corrugated pipe can point to the oropharynx; if the flexible material is a flexible material such as a flexible film, a bracket is required for fixing, and the flexible bracket can maintain the direction of the air supply pipe and can be bent and deformed when touching the inner wall of the oral cavity so as to avoid the injury of the inner wall of the oral cavity. The flexible support can use one or two elastic connecting rods as a main body, and two ends of the flexible support are respectively provided with a fixing ring; the stent can be placed in the air supply pipe 203 or outside the air supply pipe 203, a fixing ring at one end of the stent is fixed on the adapter pipe 202, and a fixing ring at the other end of the stent is fixedly sleeved with the tail end 210 of the air supply pipe. For example, the end 210 of the air supply pipe is provided with a necking rubber ring, the diameter of the air supply pipe 203 is the same as that of the fixing ring, and the rubber ring is smaller than that of the fixing ring, so that the sleeving and fixing are easy to realize.

As shown in fig. 5, in order to prevent the air feeding pipe 203 from being damaged or the air feeding of the duct from being interrupted due to the strong occlusion of the teeth of the user, the mouth respirator body 200 is fixed with a left protective sleeve connecting rod 221 and a right protective sleeve connecting rod 221, the protective sleeve connecting rods 221 are arranged towards the oral cavity, the tail ends of the protective sleeve connecting rods 221 are fixed with rigid or elastic protective sleeves 222, through holes are arranged in the middle of the protective sleeves 222, and the air feeding pipe passes through the through holes of the protective sleeves 222.

Fig. 3 to 5 show another embodiment of the present invention. The main difference from the first embodiment is that the oral respirator body 200 is a bracket structure, and the support bracket 212 is not a continuous ring structure, but two segmented structures, and for added stability, the support bracket 212 may be configured in a curved shape to fit the cheek.

It should be noted that the present invention is not limited to the above two embodiments, and the mouth respirator body may be configured in the form of a cable link or a net plate.

Claims

1. A mouth respirator, includes mouth respirator body and bandeau, its characterized in that: the mouth respirator body is a supporting and fixing device and is of a non-airtight structure, and the head band is connected to the respirator body through a locking structure to fix the mouth respirator body around the mouth of a user; the mouth respirator body is fixed with a vent pipe, the front end of the vent pipe is an air inlet pipe, and the rear end of the vent pipe is an adapter pipe; the mouth cavity air supply device further comprises an air supply pipe, the air supply pipe is hermetically connected and fixed to the adapter pipe, and the other end of the air supply pipe extends into the mouth cavity.

2. The oral respirator of claim 1, wherein: the mouth respirator body is provided with a supporting support which is in contact with the face of a user, and the supporting support is provided with a soft cushion layer.

3. The oral respirator of claim 2, wherein: the length and position of the air delivery pipe are set to be that the tail end of the air delivery pipe is close to the oropharynx part of the user.

4. The oral respirator of claim 3, wherein: rigid or elastic flat tubes are used for the air supply pipe.

5. The oral respirator of claim 3, wherein: the air supply pipe uses a soft corrugated pipe.

6. The oral respirator of claim 3, wherein: the air supply pipe uses a film hose, and the film hose is provided with a flexible support for fixing the air supply direction of the film hose.

7. The oral respirator of claim 5 or 6, wherein: the mouth respirator body is fixed with two left and right protective sleeve connecting rods, the protective sleeve connecting rods are arranged towards the oral cavity, the tail ends of the protective sleeve connecting rods are fixed with rigid or elastic protective sleeves, a through hole is formed in the middle of each protective sleeve, and the air supply pipe penetrates through the through holes of the protective sleeves.