CN207532619U - Invasive ventilation device - Google Patents

Abstract

The utility model discloses a non-invasive ventilation device, comprising: a mask, the mask includes a mask body and an air bag, the mask body is provided with a first opening, the air bag surrounds the periphery of the first opening, and the mask body The outer surface includes a spherical cap, the height of the spherical cap is greater than or equal to the radius of the spherical cap; and a head cover, which is made of a flexible material, wraps the mask and the patient's head by stretching the head cover, and is used to cover the face mask and the patient's head. The mask is fastened to the patient's face, and the patient's nose and mouth are received in the mask through the first opening. The non-invasive ventilation device described in the utility model will not press the patient's head skin.

Description

non-invasive ventilation device

technical field

The utility model relates to the technical field of medical instruments, in particular to a non-invasive ventilation device.

Background technique

Non-invasive ventilation assistance is a transitional breathing assistance mode between endotracheal intubation-assisted ventilation and mask ventilation. Compared with tracheal intubation ventilation, non-invasive ventilation can effectively reduce the occurrence of respiratory muscle-associated pneumonia, reduce airway irritation and trauma, and there is no strict body position restriction, which is convenient for eating. Compared with mask ventilation, non-invasive ventilation can provide stronger pressure assistance, and provide certain assistance to patients with insufficient breathing power, reduce breathing work, and improve breathing conditions.

However, the masks of current non-invasive ventilation devices are difficult to fix. If they are too loose, they will leak air and cannot effectively assist breathing. Tightening the fixing belt of the mask can effectively fix the mask, but the fixing belt will cause pressure on the skin of the head. If the time is too long, pressure sores will appear on the skin of the head, and the appearance of pressure sores will make the patient afraid to breathe due to pain. This in turn aggravates the condition of the respiratory system.

Utility model content

The technical problem to be solved by the utility model is to provide a non-invasive ventilation device that does not compress the patient's head skin.

In order to achieve the above object, the utility model embodiment adopts the following technical solutions:

A device for non-invasive ventilation is provided, comprising:

A mask, the mask includes a mask body and an airbag, the mask body opens a first opening, the airbag surrounds the periphery of the first opening, the outer surface of the mask body includes a spherical cap, and the height of the spherical cap is greater than or equal to the radius of said spherical cap; and

The head cover is made of flexible material, and is used to wrap the mask and the patient's head by stretching the head cover, and is used to fasten the mask to the patient's face, and the patient's nose and mouth are received through the first opening within the enclosure.

Wherein, the ratio of the height of the spherical cap to the radius of the spherical cap is less than or equal to 7:4.

Wherein, the ratio of the height of the spherical cap to the radius of the spherical cap is greater than or equal to 5:4.

Wherein, the first opening is in the shape of an isosceles triangle.

Wherein, the cover body defines a second opening spaced apart from the first opening, and the second opening is used for ventilation.

Wherein, the non-invasive ventilation device further includes a respirator, and the respirator is connected to the second opening through a trachea.

Wherein, the hood adopts an elastic mesh cap.

Wherein, the hood is provided with a port, and the port is provided with a fixing belt for fixing the hood.

Wherein, the hood is provided with a soft inner lining, and the inner lining is attached to the inner surface of the hood.

Wherein, the inner liner adopts porous material or opens a plurality of ventilation holes.

Compared with the prior art, the utility model has the following beneficial effects:

Since the outer surface of the mask body includes a spherical cap and the height of the spherical cap is greater than or equal to the radius of the spherical cap, when the mask is fixed on the patient's face through the headgear, the mask body can fully support the patient's face. lift the hood so that the tension of the hood secures the mask to the patient's face well, the mask is not easy to move or fall off, so that the airbag fits the patient's face well , to ensure the smooth progress of non-invasive ventilation assistance. Since the tension force used to fix the mask is shared by the whole head 2, and the head shield wraps the patient's head, the tension force is dispersed, which can effectively avoid local damage to the back of the patient's head or face. Compression is created at the site of the skin, thereby preventing skin pressure sores from developing. In short, the non-invasive ventilation device does not compress the skin of the patient's head.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the utility model. Those of ordinary skill in the art can also obtain other drawings like these drawings without paying creative efforts.

Fig. 1 is a schematic structural view of a mask of a non-invasive ventilation device provided by an embodiment of the present invention.

Fig. 2 is a sectional view of the structure at II-II in Fig. 1 .

Fig. 3 is a schematic diagram of the use of a non-invasive ventilation device provided by an embodiment of the present invention.

Fig. 4 is a schematic structural view of a headgear of a non-invasive ventilation device provided by an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In addition, the following descriptions of the various embodiments refer to the attached drawings to illustrate specific embodiments that the present invention can be implemented in. The directional terms mentioned in the utility model, for example, "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc. Only refer to the directions of the attached drawings, therefore, the direction terms used are for better and more clearly explaining and understanding the present utility model, rather than indicating or implying that the devices or components referred to must have a specific orientation, with a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection", and "set on..." should be understood in a broad sense, for example, it can be It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

In addition, in the description of the present utility model, unless otherwise specified, "plurality" means two or more. If the term "process" appears in this specification, it not only refers to an independent process, but also includes in this term as long as it can realize the expected function of the process when it cannot be clearly distinguished from other processes. In addition, the numerical range represented by "-" in this specification means the range which includes the numerical value described before and after "-" as a minimum value and a maximum value, respectively. In the drawings, units with similar or identical structures are denoted by the same reference numerals.

Please refer to FIG. 1 to FIG. 4 together. The embodiment of the present invention provides a non-invasive ventilation device 100 for providing non-invasive ventilation assistance for patients. The non-invasive ventilation device 100 includes a face mask 1 and a head mask 2 . The mask 1 includes a mask body 11 and an airbag 12 . The cover body 11 defines a first opening 112 , and the airbag 12 surrounds a periphery of the first opening 112 . The outer surface of the cover 11 includes a spherical cap 110 , the height H of the spherical cap 110 is greater than or equal to the radius R of the spherical cap 110 . The hood 2 is made of flexible material, and the mask 1 and the patient's head 200 are wrapped by stretching the hood 2 to fasten the mask 1 to the patient's face, and the patient's nose and mouth pass through The first opening 112 is accommodated in the cover 11 .

In this embodiment, since the outer surface of the cover body 11 includes a spherical cap 110 and the height H of the spherical cap 110 is greater than or equal to the radius R of the spherical cap 110, the mask is covered by the hood 2 1 When fixed on the patient's face, the cover body 11 can fully support the head cover 2, so that the tension force of the head cover 2 can well fasten the mask 1 to the patient's face, the mask 1 is not easy to move or fall off, so that the airbag 12 can fit the patient's face well, ensuring the smooth progress of non-invasive ventilation assistance. Since the tension force used to fix the face mask 1 is shared by the entire hood 2, and the hood 2 wraps the patient's head 200, the tension force is dispersed, which can effectively avoid damage to the back of the patient's head. or localized skin locations on the face to prevent skin pressure sores from developing. In short, the non-invasive ventilation device 100 does not press the skin of the patient's head 200 .

It can be understood that the patient's head 200 described in this application includes the patient's face. The "spherical cap" refers to the remaining curved surface after a sphere is truncated by a plane. The radius of the original sphere is the "radius of the sphere", and the section cut perpendicular to the diameter of the section is called the "height of the sphere". The outer surface of the cover body 11 may only include the spherical cap 110 , or may include a connecting surface connecting the spherical cap 110 and the first opening 112 . The connection surface can vary with the shape of the first opening 112 .

Of course, in other embodiments, the outer surface of the cover 11 may not include a spherical cap, but include other curved surfaces with sufficient height, and the curved surface can fully support the head cover 2, so that the head The tension force of the mask 2 can well fasten the mask 1 to the patient's face, and the mask 1 is not easy to move or fall off, so that the airbag 12 can fit the patient's face well, ensuring the non-invasive ventilation assistance. went well.

Further, please refer to FIG. 1 to FIG. 3 together. As an optional embodiment, the ratio of the height H of the spherical cap 110 to the radius R of the spherical cap 110 is less than or equal to 7:4. At this time, the cover body 11 can not only fully support the head cover 2, but also reasonably control the overall volume of the face mask 1.

Preferably, the ratio of the height H of the spherical cap 110 to the radius R of the spherical cap 110 is greater than or equal to 5:4. In this case, the overall volume of the mask 1 can be further reduced.

Further, please refer to FIG. 1 to FIG. 3 together. As an optional embodiment, the first opening 112 is in the shape of an isosceles triangle. The shape of the first opening 112 can well surround the patient's nose and mouth, so that the airbag 12 fits the patient's face better.

Preferably, the first opening 112 is in the shape of an equilateral triangle.

It can be understood that the first opening 112 may also have other shapes, which may be designed according to the shape of the patient's nose, mouth and face.

Preferably, the airbag 12 is made of soft silicone material, which can improve the comfort of the patient.

Further, please refer to FIG. 1 and FIG. 2 together. As an optional embodiment, the cover body 11 defines a second opening 113 spaced apart from the first opening 112, and the second opening 113 is used for ventilation.

Preferably, the non-invasive ventilation device 100 further includes a respirator, and the respirator is connected to the second opening 113 through a trachea. The respirator can supply oxygen to the patient and assist the patient to breathe.

Further, please refer to FIG. 3 and FIG. 4 together. As an optional embodiment, the hood 2 adopts an elastic mesh cap. When the hood 2 is stretched, it has a tension force (or elastic force) to retract itself. The cost of the hood 2 is low, it can be replaced in time if damaged, and it is easy to use.

Preferably, the hood 2 is provided with a port 21 , and the port 21 is provided with a fixing belt 22 for fixing the hood 2 . The fixing belt 22 can fix the port 21 on the lower jaw of the patient.

Certainly, in other implementation manners, the tension force of the headgear 2 can also be reasonably designed by designing the size of the headgear 2 so that the port 21 can be fixed at the mandible of the patient.

Preferably, the hood 2 is provided with a soft inner lining, and the inner lining is attached to the inner surface of the hood 2 . The lining can further reduce the pressure of the head cover 2 on the skin of the patient's head.

Preferably, the inner lining is lightweight and breathable. The inner liner adopts porous material or opens a plurality of ventilation holes.

Preferably, the head cover 2 is provided with a plurality of through holes, and the plurality of through holes are facing the eyes and ears of the patient.

The above embodiments of the utility model have been introduced in detail. In this paper, specific examples have been used to illustrate the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the method of the utility model and its core idea; At the same time, for those skilled in the art, according to the idea of the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the utility model.

Claims (10)

1. A non-invasive ventilation device, characterized in that, comprising: A mask, the mask includes a mask body and an airbag, the mask body opens a first opening, the airbag surrounds the periphery of the first opening, the outer surface of the mask body includes a spherical cap, and the height of the spherical cap is greater than or equal to the radius of said spherical cap; and The head cover is made of flexible material, and is used to wrap the mask and the patient's head by stretching the head cover, and is used to fasten the mask to the patient's face, and the patient's nose and mouth are received through the first opening within the enclosure. 2. The non-invasive ventilation device according to claim 1, wherein the ratio of the height of the spherical cap to the radius of the spherical cap is less than or equal to 7:4. 3. The non-invasive ventilation device according to claim 1 or 2, wherein the ratio of the height of the spherical cap to the radius of the spherical cap is greater than or equal to 5:4. 4. The non-invasive ventilation device according to claim 1, wherein the first opening is in the shape of an isosceles triangle. 5 . The non-invasive ventilation device according to claim 1 , wherein a second opening spaced apart from the first opening is defined in the cover body, and the second opening is used for ventilation. 6 . 6 . The non-invasive ventilation device according to claim 5 , further comprising a respirator, and the respirator is connected to the second opening through a trachea. 7. The non-invasive ventilation device according to claim 1, wherein the head cover adopts an elastic mesh cap. 8. The non-invasive ventilation device according to claim 1 or 7, wherein the headgear is provided with a port, and the port is provided with a fixing belt for fixing the headgear. 9. The non-invasive ventilation device according to claim 1 or 7, characterized in that, the hood is provided with a soft inner lining, and the inner lining is attached to the inner surface of the hood. 10. The non-invasive ventilation device according to claim 9, characterized in that the inner liner is made of porous material or provided with a plurality of ventilation holes.