CN217526031U

CN217526031U - Noninvasive ventilation mask capable of reducing dead cavity of patient

Info

Publication number: CN217526031U
Application number: CN202123388950.0U
Authority: CN
Inventors: 侯海佳
Original assignee: First Hospital of China Medical University
Current assignee: First Hospital of China Medical University
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-04
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a noninvasive ventilation mask capable of reducing dead space of a patient, which comprises a mask main body, wherein the main body covers the whole face, a suction pipeline is arranged on the front side of the main body and above the nasal part, a breathing pipeline is arranged on the front side of the main body and below the oral part, and a first joint and a second joint which are movably connected with the suction pipeline and the breathing pipeline respectively are arranged on the main body; the part of the first joint connected with the inhalation pipeline extends downwards, and the part of the second joint connected with the exhalation pipeline extends forwards horizontally; the main part is all around and be equipped with the mechanism of decompression with one side of face contact, just be equipped with outside outstanding outer portion that expands in the main part to the nasal part position. The utility model discloses practicality and functional strong, but wide application in noninvasive surgery technical field.

Description

Noninvasive ventilation mask capable of reducing dead cavity of patient

Technical Field

The utility model relates to a there is not malleation field of creating, specifically indicate can reduce the noninvasive face guard of ventilating of patient dead space, more specifically, be a noninvasive face guard of ventilating of breathing in pipeline, exhalation breathing in pipeline with independent separation.

Background

Non-invasive ventilation reduces the risk of respiratory failure after endotracheal intubation and extubation, and is currently used to treat acute and chronic respiratory failure. Proper use of noninvasive ventilation has been shown to reduce the need for endotracheal intubation, reduce hospital stays, and reduce mortality. However, there is a certain failure rate of non-invasive ventilation, approximately 5% -60%, and problems associated with the connection interface have been identified as one of the possible causes of failure: early NIV cessation can be caused by air leakage, excessive facial pressure, claustrophobia, skin damage to the bridge of the nose, facial pain, and dry mouth and nose. At present, various different types of connecting media exist clinically, including a nasal mask, an oral nasal mask, a full face mask and a helmet, and pipelines comprise a single-limb loop and a double-limb loop. However, some connecting media have repeated breathing and large dead space, which results in poor man-machine coordination and poor clinical efficacy.

Most of the non-invasive ventilation used in clinic is a single circuit connection nasal or oral nasal mask, but the gas is easy to leak into the air to cause pollution, so the whole face mask or helmet connection double circuit device connection is mostly adopted. However, such a loop is prone to CO ₂ Repeated breathing and increased dead space volume, leading to poor clinical results. The intermittent, limited flow of fresh air is not sufficient to purge the mask of carbon dioxide due to the internal volume of the mask and the use of a single circuit connection, which tends to increase dead space. One approach is to increase the base airflow, but only in the event of a leak, since it will circulate in the Y-loop without clearing the mask dead space. With the independent inhale and exhale port design, fresh airflow is forced into the mask dead space. This phenomenon is attenuated by the higher respiratory rate, reducing the expiration time during which carbon dioxide elution occurs.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a full face guard of ventilating of woundless with breathing pipeline, exhalation breathing pipeline of independently separating, it adopts two limbs to ventilate the return circuit and connects full face guard respectively, separates business turn over gas passage, solitary suction and exhalation port to the repetitive respiration of face guard has significantly reduced.

The utility model provides a technical scheme does:

a noninvasive ventilation mask capable of reducing dead cavities of a patient comprises a mask main body, wherein the mask main body covers the whole face, a suction pipeline is arranged on the front side of the mask main body and above a nose, a breathing pipeline is arranged on the front side of the mask main body and below a mouth, and a first connector and a second connector which are movably connected with the suction pipeline and the breathing pipeline respectively are arranged on the mask main body; the part of the first joint connected with the inhalation pipeline extends downwards, and the part of the second joint connected with the exhalation pipeline extends forwards horizontally; the main part is all around and be equipped with the mechanism of decompression with one side of face contact, just be equipped with outside outstanding outer portion that expands in the main part to the nasal part position.

Furthermore, the first joint is in a bent pipe shape, one end of the first joint is fixedly connected to the external expanding part, and the other end of the first joint is provided with a first internal thread connected with the suction pipeline; one end of the second joint is fixedly connected with the lower end of the outward-expanding part, and the other end of the second joint is provided with a second internal thread connected with the exhalation pipeline.

The flaring part is a transparent curved surface structure capable of covering the nose part and the mouth part, and the flaring part is integrally formed with the main body; and a hollow extension column protruding outwards is arranged between the first external expansion part and the first connector.

Furthermore, a supporting part vertical to the face of the patient is arranged on the periphery of the main body, the supporting part is cylindrical, and the cross section shape of the supporting part is matched with the front shape of the face; the decompression mechanism is located on the side of the support portion that contacts the face.

Furthermore, the supporting part is of an elastic structure, the pressure reducing mechanism comprises a pressure bearing layer, a buffer layer and a skin-friendly layer which are sequentially arranged and fixedly connected, and the skin-friendly layer is in contact with the face;

the both sides of supporting part still are equipped with elastic fixation area, the fixed band is used for fixing the main part in patient's head position.

Furthermore, the pressure-bearing layer is made of a medical silica gel material, the buffer layer is made of a cotton cloth material, and the skin-friendly layer is made of a silica gel material; the supporting part is set to be at a preset height and is made of flexible materials.

Furthermore, the suction pipeline and the exhalation pipeline both adopt a bellows structure.

Compared with the prior art, the utility model the advantage lie in:

through adopting the mask main part that has inhalation duct and exhalation pipeline that this application provided to set up decompression mechanism and outer portion that expands, not only realized improving the function of breathing the smoothness nature, can avoid repeated breathing and dead space to ventilate in very big degree moreover, strengthened clinical effect.

Drawings

FIG. 1 is an external structural view of an embodiment of the present invention;

fig. 2 is a structural view of a pressure reducing mechanism in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to fig. 1 and 2.

A noninvasive ventilation mask capable of reducing dead cavities of a patient comprises a mask main body 1, wherein the main body 1 covers the whole face, a suction pipeline 2 is arranged on the front side of the main body 1 and above a nose part, a breathing pipeline 3 is arranged on the front side of the main body 1 and below a mouth part, and a first joint 4 and a second joint 5 which are respectively movably connected with the suction pipeline 2 and the breathing pipeline 3 are arranged on the main body 1; the part of the first joint 4 connected with the inhalation pipeline 2 extends downwards, and the part of the second joint 5 connected with the exhalation pipeline 3 extends forwards horizontally; the pressure reducing mechanism is arranged on one side of the periphery of the main body 1, which is in contact with the face, and the outward-protruding outward-expanding part 6 is arranged on the main body 1 and right opposite to the nose.

Because this device has adopted the design of stand alone type breathing circuit, specifically be the structure including inhaling pipeline 2 and exhaling pipeline 3, fresh air is forced to get into main part 1 dead space to reduce repeated breathing and dead space. By providing separate inhalation and exhalation ports, rebreathing of the full face mask is greatly reduced, particularly during setup of base airflow and leak-free CPAP and PSV. The device is convenient to use, can greatly avoid repeated respiration and dead space ventilation, and improves clinical curative effect.

Structurally, the arrangement of the pressure reducing mechanism can improve the comfort of wearing the device and reduce the extrusion degree of the face of a patient; through the outer portion 6 that expands that sets up to enlarged the smooth and easy degree of patient in the respiratory process, improved ventilation effect, improve the practicality in the use then.

The first connector 4 is in a bent pipe shape, one end of the first connector is fixedly connected to the external expanding part 6, and the other end of the first connector is provided with a first internal thread connected with the suction pipeline 2; one end of the second joint 5 is fixedly connected with the lower end of the external expanding part 6, and the other end of the second joint is provided with a second internal thread connected with the exhalation pipeline 3.

The first connector 4 and the second connector 5 are connected with the main body 1 and communicated with the main body 1, so that the functions of inhalation and exhalation are conveniently realized.

The flaring portion 6 is a transparent curved surface structure capable of covering the nose and the mouth, and the flaring portion 6 and the main body 1 are integrally formed; a hollow extending column 7 which protrudes outwards is arranged between the external expanding part 6 and the joint I4.

The setting of extension post 7 has realized that convenience of customers exists in the implementation owing to take place to rock the function that thereby influences patient's treatment sensation along with taking place to rock together that the suction line 2 that leads to a certain extent rocks, plays certain cushioning effect.

The periphery of the main body 1 is also provided with a supporting part 8 vertical to the face of the patient, the supporting part 8 is cylindrical, and the cross section shape of the supporting part is matched with the front shape of the face; the decompression mechanism is located on the face-contacting side of the support portion 8.

The setting of supporting part 8 has played and has reduced the sense of oppression that the patient exists in the use, enlarges patient breathing space, improves the fresh degree of the inside air of breathing in-process main part 1.

The supporting part 8 is of an elastic structure, the pressure reducing mechanism comprises a pressure bearing layer 9, a buffer layer 10 and a skin-friendly layer 11 which are sequentially arranged and fixedly connected, and the skin-friendly layer 11 is contacted with the face;

two sides of the supporting portion 8 are further provided with an elastic fixing belt 12, and the fixing belt 12 is used for fixing the main body 1 on the head of the patient.

The pressure bearing layer 9 is made of medical silica gel, the buffer layer 10 is made of cotton cloth, and the skin-friendly layer 11 is made of silica gel; the support portion 8 is set to a predetermined height, and the support portion 8 is made of a flexible material.

The inhalation pipeline 2 and the exhalation pipeline 3 both adopt a bellows structure.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A noninvasive ventilation mask capable of reducing dead cavities of a patient comprises a mask main body, wherein the mask main body covers the whole face, and is characterized in that a suction pipeline is arranged on the front side of the mask main body and above a nose part, a breathing pipeline is arranged on the front side of the mask main body and below a mouth part, and a first connector and a second connector which are movably connected with the suction pipeline and the breathing pipeline respectively are arranged on the mask main body; the part of the first joint connected with the inhalation pipeline extends downwards, and the part of the second joint connected with the exhalation pipeline extends forwards horizontally; the main part is all around and be equipped with the mechanism of decompression with one side of face contact, just be equipped with outside outstanding outer portion that expands in the main part to the nasal part position.

2. A noninvasive ventilation mask for reducing dead space of a patient as claimed in claim 1, characterized in that said first connector is formed in a bent tube shape, one end of which is fixed to the flaring portion and the other end of which is provided with a first internal thread connected to the inhalation tube; one end of the joint II is fixedly connected to the lower end of the outer expanding part, and the other end of the joint II is provided with an internal thread II connected with the exhalation pipeline.

3. A noninvasive ventilation mask for reducing dead space of a patient according to claim 2, characterized in that said flaring portion is provided as a transparent curved structure capable of covering the nose and mouth, said flaring portion is formed integrally with the main body; and a hollow extension column protruding outwards is arranged between the first external expansion part and the first connector.

4. A noninvasive ventilation mask for reducing dead space of a patient as claimed in claim 3, characterized in that said main body is further provided with a support part around the periphery thereof, said support part being vertical to the face of the patient, said support part being formed in a tubular shape, the cross-sectional shape of which is adapted to the frontal shape of the face; the decompression mechanism is located on the side of the support portion that contacts the face.

5. A noninvasive ventilation mask for reducing patient's dead space as claimed in claim 4, characterized in that said supporting part is provided as a flexible structure, said pressure reducing mechanism comprises a pressure-bearing layer, a cushioning layer and a skin-friendly layer, which are sequentially and fixedly connected, said skin-friendly layer is in contact with the face;

6. The noninvasive ventilation mask for reducing dead space of a patient as claimed in claim 5, wherein said pressure-bearing layer is made of medical silica gel material, said buffer layer is made of cotton cloth material, and said skin-friendly layer is made of silica gel material; the supporting part is set to be at a preset height and is made of flexible materials.

7. A noninvasive ventilation mask of claim 1-6, wherein the inhalation and exhalation tubes are of bellows construction.