CN219307644U - Ventilation headband and ventilation therapy system with same - Google Patents

Abstract

The utility model relates to the field of ventilation treatment equipment, and discloses a ventilation headband and a ventilation treatment system with the ventilation headband, wherein the ventilation headband comprises a connector port (3) for being connected to a respiratory pipeline, and a first ventilation headband pipe (1) and a second ventilation headband pipe (2) which extend from two ends of the connector port respectively and are symmetrically arranged with each other, wherein the tube wall of at least one of the first ventilation headband pipe and the second ventilation headband pipe is provided with a bottom wall part (11) for being contacted with a patient, a top wall part (12) opposite to the bottom wall part and a connecting part (13) connected between the top wall part and the bottom wall part respectively, and the connecting part is provided with a circular arc-shaped cross section and is tangential to the bottom wall part at a part connected to the bottom wall part. When the patient wears the ventilation headband in a lying way, the ventilation headband can keep the stress on the area where the cheeks of the patient are in contact with the tube wall uniform, so that the possibility of pressure sores generated after the patient wears the ventilation headband in a lying way, such as a night time, is effectively reduced.

Description

Ventilation headband and ventilation therapy system with same

Technical Field

The present utility model relates to ventilation therapy devices, and in particular to a ventilation headgear that may be used in a ventilation therapy system. On this basis, the utility model also relates to a ventilation therapy system comprising the ventilation headband.

Background

Positive airway pressure therapy (positive airway pressure, PAP) systems for delivering a breathing gas, such as positive pressure air, to a patient typically include a positive airway pressure device, a gas delivery passageway, and a patient interface, such as a respiratory mask or nasal oxygen cannula. In use, the gas delivery channel delivers breathing gas from the positive airway pressure device to a patient interface worn on the face of a patient.

Generally, the gas delivery path may include a breathing circuit connected between the positive airway pressure device and a patient interface (e.g., a respiratory mask) that is connected by an elbow to a location intermediate the front side of the frame of the respiratory mask to supply respiratory gas from the front side that is facing the patient's face. The prior art also provides for the formation of openings in the left and right sides of the respiratory mask, with the gas delivery passage communicating to at least one of the ventilation holes to supply respiratory gas into the respiratory mask by single or double sided inlet.

During sleep of the patient, its unintentional movement may cause the breathing circuit to become disconnected from the patient interface, resulting in an interruption of ventilation. To this end, the gas delivery channel may be arranged to comprise a ventilation headgear worn to the patient's head and with which the breathing gas is connected and supplied to the patient interface, whereby the risk of ventilation interruption may be reduced. Generally, ventilation headgear has a circular cross-section and is less comfortable when a patient is resting on the ventilation headgear.

In this respect, the prior art also proposes to use a ventilation headband of D-shaped cross-section, so that the ventilation headband has a flat outer wall surface on the part of the tube wall that contacts the patient and can maintain the ventilation function when pressed on the side facing away from the patient's head. However, when a patient is resting on the ventilation headband during use, the ventilation headband is squeezed to have a relatively flat cross-section, the area of the tube wall portion that contacts the patient increases, but there is a difference in the effect of different areas of the tube wall portion on the patient's cheeks (large on both sides, small in the middle), and pressure sores tend to develop in the wearing area after the patient wears on his side for a long period of time.

Disclosure of Invention

The utility model aims to solve the problem that the ventilation headband in the prior art is easy to generate pressure sores in wearing areas after a patient wears the ventilation headband for a long time in a lying way, and provides the ventilation headband which can enable the areas where cheeks of the patient are in contact with tube walls to be uniformly stressed when the patient wears the ventilation headband for a lying way, so that the possibility of generating pressure sores after the patient wears the ventilation headband for a long time such as a night is reduced to the greatest extent.

In order to achieve the above object, an aspect of the present utility model provides a ventilation headgear including a connector port for connection to a respiratory line, and first and second ventilation headgear tubes extending from both ends of the connector port, respectively, and disposed symmetrically to each other, a tube wall of at least one of the first and second ventilation headgear tubes being provided to have a bottom wall portion for contact with a patient, a top wall portion opposite to the bottom wall portion, and connection portions connected between the top wall portion and the bottom wall portion, respectively, the connection portions being provided to have a circular arc-shaped cross section and being tangential to the bottom wall portion at portions connected to the bottom wall portion.

Preferably, the cross-sectional outer profile length of the connecting portion and the bottom wall portion is not less than half of the cross-sectional circumference of the entire tube wall.

Preferably, the outer wall surface of the bottom wall portion is formed as a flat surface or a corrugated surface, or a plurality of protruding points are formed on the outer wall surface of the bottom wall portion.

Preferably, the cross sections of the top wall portion and the bottom wall portion are parallel to each other and have the same extension length, and the connecting portion is provided with a semicircular cross section so that the cross section of the pipe wall is in a racetrack shape.

Preferably, the top wall portion is provided to have an arc-shaped cross section protruding toward a side away from the bottom wall portion.

Preferably, the top wall portion is provided with a semi-elliptical cross-section, and the connecting portion is provided with a 1/4 circular cross-section and is tangential to the top wall portion at the portion connected to the top wall portion.

Preferably, the wall thickness of the top wall portion increases from an edge portion connected to the connecting portion toward a middle portion distant from the connecting portion, so that an outer wall surface of the top wall portion forms an outwardly convex arch shape.

Preferably, the first and second ventilation headgear tubes have the same cross-section at symmetrical positions to each other.

Preferably, at an end remote from the connector port, the first and second ventilation headgear tubes are curved to extend towards each other to allow extension from the patient's cheek to a person's position in a worn condition.

Preferably, the ends of the first and second ventilation headgear tubes remote from the connector ports are each provided with an interface connector for connection to a patient interface.

Preferably, the outer wall surfaces of the first ventilation head belt pipe and the second ventilation head belt pipe are respectively provided with a binding belt connecting structure.

A second aspect of the present utility model provides a ventilation therapy system comprising a positive airway pressure device and a ventilation headgear as described above connected by a breathing circuit, wherein the ends of the first and second ventilation headgear tubes remote from the connector port are connected to a patient interface.

Through the technical scheme, when one of the first ventilation head belt pipe and the second ventilation head belt pipe cannot ventilate due to the fact that the patient wears the ventilation head belt in a lying mode, ventilation of the other ventilation head belt pipe can be achieved, and therefore breathing gas can be continuously supplied to a patient interface. By arranging the tube wall of the first ventilation headband tube and/or the second ventilation headband tube to have the top wall portion and the bottom wall portion connected by the connecting portion, and the connecting portion having the circular arc-shaped cross section and being tangent to the bottom wall portion at the portion connected to the bottom wall portion, when the patient is lying on his/her side, the area of the tube wall portion of the ventilation headband in contact with the patient is increased, and the increased portion is substantially free of the prismatic structure, whereby it is possible to keep the force of the area of the patient's cheek in contact with the tube wall uniform, effectively reducing the possibility of pressure sores generated by the patient after the patient is lying on his/her side for a long time such as overnight.

Drawings

FIG. 1 is a front view of a ventilation headband in accordance with a preferred embodiment of the present utility model;

FIG. 2 is a right side view of the ventilation headband of FIG. 1;

FIG. 3 is a cross-sectional view A-A of a second ventilation headband duct of the ventilation headband of FIG. 2;

FIG. 4 is a cross-sectional view of the second ventilation headband in FIG. 3 when it is initially compressed;

FIG. 5 is a cross-sectional view of the second ventilation headband in FIG. 3 when it is further compressed;

FIG. 6 is a cross-sectional view of a first or second ventilation headband duct of a ventilation headband in accordance with another preferred embodiment of the present utility model;

FIG. 7 is a cross-sectional view of the first ventilation headband duct or the second ventilation headband duct of FIG. 6 when the first ventilation headband duct or the second ventilation headband duct is compressed;

FIG. 8 is a cross-sectional view of a first or second ventilation headband duct of a ventilation headband in accordance with another preferred embodiment of the present utility model;

fig. 9 is a sectional view of the first ventilation headband pipe or the second ventilation headband pipe of fig. 8 when the first ventilation headband pipe or the second ventilation headband pipe is compressed.

Description of the reference numerals

1-a first ventilation headband tube; 2-a second ventilation headband tube; 3-connector ports; 4-interface connector;

11-a bottom wall portion; 12-a top wall portion; 13-a connection; 14-strap connection.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.

Referring to fig. 1 and 2, a ventilation headgear according to a preferred embodiment of the present utility model includes a connector port 3 for connection to a respiratory line, such as by an elbow, and first and second ventilation headgear tubes 1 and 2 extending from both ends of the connector port 3, respectively. Wherein the first ventilation headband tube 1 and the second ventilation headband tube 2 are generally provided to have the same structure and are symmetrically provided to each other in order to be stably worn on the head of a patient. In the worn state, the connector port 3 is supported on the top of the patient's head, and the first and second ventilation headgear tubes 1 and 2, respectively, extend from the top of the patient's head and contact ground across the cheeks until connected to a patient interface, such as a respiratory mask or nasal oxygen tube, at a location near the nose or mouth.

The other end of the breathing circuit may be connected to a positive airway pressure device such as a ventilator, whereby breathing gas from the positive airway pressure device may be supplied to the patient through the breathing circuit, the ventilator circuit, and the patient interface in sequence. During sleeping of the patient, even if he unconsciously moves with his head resting on one of the first ventilation headgear tube 1 and the second ventilation headgear tube 2 of the ventilation headgear, ventilation can be performed at least by the other one that is not resting, whereby the supply of breathing gas to the patient interface can be continued, avoiding interruption of ventilation.

As shown in fig. 3, in the ventilation headband provided by the present utility model, the tube wall of at least one of the first ventilation headband tube 1 and the second ventilation headband tube 2 is provided to have a bottom wall portion 11 for contact with a patient, a top wall portion 12 opposite to the bottom wall portion 11, and connection portions 13 connected between the top wall portion 12 and the bottom wall portion 11, respectively. In the worn state, the tube wall contacts the head of the patient through the bottom wall portion 11. When the head of the patient is pressed against the first ventilation headband pipe 1 or the second ventilation headband pipe 2, the connection portion 13 is deformed, and the top wall portion 12 is drawn toward the bottom wall portion 11 until the inner wall surfaces of the top wall portion 12 and the bottom wall portion 11 come into contact with each other, so that the air flow channel is completely closed, as shown in fig. 4 and 5. Wherein the connecting portion 13 is provided to have a circular arc-shaped cross section and is tangential to the bottom wall portion 11 at a portion connected to the bottom wall portion 11. When the patient lies on his/her side and is put on his/her head to the first ventilation headband pipe 1 or the second ventilation headband pipe 2, a part of the connection part 13 is deformed to be in contact with the patient, and the contact area between the ventilation headband and the head of the patient is increased. Since the connecting portion 13 is formed to have a circular arc-shaped cross section and smoothly transits to the bottom wall portion 11, it is possible to avoid the generation of a prismatic structure at a portion in contact with the head of the patient after deformation, which can keep the force of the area in contact with the cheek and the tube wall of the patient uniform, and is advantageous in avoiding the possibility of pressure sores generated after the patient wears on his/her side for a long time such as at night.

Since the connecting portion 13 is required to be deformed to have a flat contact surface after contact with the patient, the connecting portion 13 has a relatively considerable extension in the circumferential direction of the tube wall, and does not include a rounded form (i.e., the top wall portion 12 and the bottom wall portion 11 are directly connected and formed into a rounded shape at the connection position). On this basis, the bottom wall portion 11 and the top wall portion 12 of the tube wall may be formed in various suitable shapes, and thereby define the central angle size corresponding to the circular arc-shaped cross section of the connecting portion 13.

In the preferred embodiment shown in fig. 3 to 5, the outer wall surface of the bottom wall portion 11 is formed in a plane so as to be able to contact the patient uniformly. In other embodiments, the outer wall surface of the bottom wall portion 11 may also be formed in a wavy surface or have an concave-convex point or the like shape, which may be advantageous in improving the air permeability of the portion in contact with the patient. For example, the outer wall surface of the bottom wall portion 11 may be formed as a corrugated surface, or a plurality of protruding points may be formed on the outer wall surface.

Further, in a preferred embodiment, the cross sections of the top wall portion 12 and the bottom wall portion 11 may be parallel to each other and have the same extension length, and accordingly, the connecting portion 13 is provided to have a semicircular cross section, thereby making the cross section of the tube wall take the form of a racetrack. With this arrangement, when the head of the patient is rested on the first ventilation headband pipe 1 or the second ventilation headband pipe 2, the through-flow cross section of the first ventilation headband pipe 1 or the second ventilation headband pipe 2 can be kept uniformly deformed in the racetrack-type outer contour, so that the respective corresponding portions of the top wall section 12 and the bottom wall section 11 are brought close to each other in the direction perpendicular to the extending direction thereof, and thus the portion of the patient in contact with the first ventilation headband pipe 1 or the second ventilation headband pipe 2 is uniformly stressed.

When the first ventilation headband duct 1 or the second ventilation headband duct 2 is pressed by the pillow so that the airflow channel is completely closed, about half of the outer contour of the duct wall thereof is in contact with the patient, and the other half is in contact with a pressure-bearing object such as a pillow. The connection portion 13 of the first ventilation headband pipe 1 or the second ventilation headband pipe 2 is thus arranged such that, when deformed to contact a patient, the contact portion should be as free as possible of the generation of a prismatic structure, so as to maximally avoid the generation of pressure sores after a patient wears the device on his/her side for a long time, such as at night. For this purpose, in a preferred embodiment, the cross-sectional outer contour length of the connecting portion 13 and the bottom wall portion 11 may be not less than half the cross-sectional circumference of the entire tube wall. For example, in the embodiment in which the cross section of the tube wall is a racetrack, when the first ventilation headband tube 1 or the second ventilation headband tube 2 is pressed by the pillow so that the air flow passage is completely closed, half of each of the two connection portions 13 is pressed and deformed to be in contact with the patient, but the contact portion does not generate a prismatic structure, whereby the area where the cheek of the patient is in contact with the tube wall can be maintained uniformly.

Fig. 6 and 7 are sectional structural views showing a first ventilation headband pipe or a second ventilation headband pipe according to another preferred embodiment of the present utility model. The tube wall of the first ventilation headband tube or the second ventilation headband tube is also provided with a bottom wall section 11 for contact with a patient, a top wall section 12 opposite to the bottom wall section 11, and connection sections 13 connected between the top wall section 12 and the bottom wall section 11, respectively. In the worn state, the tube wall contacts the head of the patient through the bottom wall portion 11. When the head of the patient is pressed against the first ventilation headband pipe 1 or the second ventilation headband pipe 2, the connection portion 13 is deformed, and the top wall portion 12 is closed toward the bottom wall portion 11 until the inner wall surfaces of the top wall portion 12 and the bottom wall portion 11 come into contact with each other, so that the airflow passage is completely closed. Wherein the connecting portion 13 is provided to have a circular arc-shaped cross section and is tangential to the bottom wall portion 11 at a portion connected to the bottom wall portion 11. When the patient lies on his/her side and is put on his/her head to the first ventilation headband pipe 1 or the second ventilation headband pipe 2, a part of the connection part 13 is deformed to be in contact with the patient, and the contact area between the ventilation headband and the head of the patient is increased. Since the connecting portion 13 is formed to have a circular arc-shaped cross section and smoothly transits to the bottom wall portion 11, it is possible to avoid the generation of a prismatic structure at a portion in contact with the head of the patient after deformation, which can keep the force of the area in contact with the cheek and the tube wall of the patient uniform, and is advantageous in avoiding the possibility of pressure sores generated after the patient wears on his/her side for a long time such as at night.

In the ventilation headband of this preferred embodiment, the top wall section 12 is provided to have an arc-shaped cross section protruding to the side away from the bottom wall section 11, whereby the first ventilation headband pipe or the second ventilation headband pipe has better bending resistance than the form of the racetrack cross section described above, so that the ventilation function can be maintained well. Wherein the cross-section of the top wall portion 12 may be e.g. semi-circular or semi-elliptical, and correspondingly the connecting portion 13 may be provided with a 1/4 circular cross-section, i.e. the cross-section of the connecting portion 13 corresponds to a central angle of 90 °, whereby the connecting portion 13 may be tangential to the connecting portion 12 at the portion connected to the top wall portion 12. Here, when the first ventilation headband pipe or the second ventilation headband pipe is pressed by the pillow so that the airflow passage is completely closed, not only the two connection portions 13 thereof are each pressed and deformed to be in contact with the patient, but also both sides of the top wall portion 12 may be pressed and deformed to be in contact with the patient, but the respective contact portions do not generate the prismatic structure, whereby it is possible to maintain the area where the cheeks of the patient are in contact with the tube wall uniformly stressed.

Fig. 8 and 9 are sectional structural views showing a first ventilation headband pipe or a second ventilation headband pipe according to another preferred embodiment of the present utility model. The first ventilation headband pipe or the second ventilation headband pipe has substantially the same structure as the foregoing preferred embodiment, except that in the ventilation headband of the preferred embodiment, there is a difference in wall thickness of the bottom wall section 11, the top wall section 12, and the connecting section 13, and particularly, the top wall section 12 is provided such that different portions thereof have different wall thicknesses. Specifically, in the view of the illustrated cross-sectional view, the edge portion of the top wall portion 12 connected to the connecting portion 13 has substantially the same wall thickness as the connecting portion 13, while the wall thickness of the bottom wall portion 11 is smaller than those portions; from the edge portion to the intermediate portion distant from the connecting portion 13, the wall thickness of the top wall portion 12 gradually increases. Thus, the outer wall surface of the top wall portion 12 is formed into an outwardly convex arch shape, such as an oval outer wall. By this arrangement, the first ventilation headband duct or the second ventilation headband duct has a better bending resistance than the form of the racetrack cross section described above, so that the ventilation function can be better maintained. Wherein the connecting portion 13 may be provided with a 1/2 circular cross-section, i.e. the cross-section of the connecting portion 13 corresponds to a central angle of 180 °, whereby the connecting portion 13 may smoothly transition with the connecting portion 12 at the portion connected to the top wall portion 12. Here, when the first ventilation headband pipe or the second ventilation headband pipe is pressed by the pillow so that the airflow passage is completely closed, not only the two connection portions 13 thereof are each pressed and deformed to be in contact with the patient, but also both sides of the top wall portion 12 may be pressed and deformed to be in contact with the patient, but the respective contact portions do not generate the prismatic structure, whereby it is possible to maintain the area where the cheeks of the patient are in contact with the tube wall uniformly stressed.

As described above, the first ventilation headband pipe 1 and the second ventilation headband pipe 2 may be provided to have the same structure, whereby they have the same cross section at positions symmetrical to each other. In this case, the walls of the first and second ventilation headband pipes 1 and 2 each have the aforementioned structure. In some embodiments, for example, only one of the first ventilation headband tube 1 and the second ventilation headband tube 2 may be provided to have the aforementioned structure, while the other adopts a circular cross-section or a D-shaped cross-section, according to the lateral direction habit of the patient.

To facilitate reliable wearing and connection to a patient interface, such as a nasal oxygen cannula, at an end remote from the connector port 3, the first and second ventilation headgear tubes 1, 2 may be formed to curve towards each other to allow extension from the patient's cheeks to a person position, respectively, in a worn state. The ends of the first ventilation headgear tube 1 and the second ventilation headgear tube 2 remote from the connector port 3 may also be provided with an interface connector 4 for connection to a patient interface, respectively, the interface connector 4 may be formed in various configurations depending on the interface structure of the patient interface, for example, may be formed with a snap for snap-fitting to the patient interface for easy disassembly and use.

The first and second ventilation headband pipes 1 and 2 may be further provided on outer wall surfaces thereof with a band connection structure 14, whereby a band may be connected to the first and second ventilation headband pipes 1 and 2 to stably wear the ventilation headband by bypassing the rear side of the patient's head with the band.

The ventilation headband of the present utility model is intended to be worn on the head of a patient to deliver breathing gas, and the portion of the ventilation headband that contacts the head of the patient is preferably made of a soft material. For example, the first ventilation headband pipe 1 and the second ventilation headband pipe 2 may be made of a silica gel material, so as to ensure wearing comfort.

Another aspect of the utility model also provides a ventilation therapy system comprising a positive airway pressure device, such as a ventilator, and a ventilation headgear as described above, the connector port 3 of the ventilation headgear being connected to the positive airway pressure device by a breathing circuit and a patient interface, such as a respiratory mask or nasal oxygen cannula, being connected at an end remote from the connector port 3 (e.g. by an interface connector 4).

The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a number of simple variants of the technical solution of the utility model are possible, including combinations of individual specific technical features in any suitable way. The various possible combinations of the utility model are not described in detail in order to avoid unnecessary repetition. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

Claims (11)

1. A ventilation headgear comprising a connector port (3) for connection to a respiratory line and a first ventilation headgear tube (1) and a second ventilation headgear tube (2) extending from both ends of the connector port (3) and being arranged symmetrically to each other, respectively, characterized in that a tube wall of at least one of the first ventilation headgear tube (1) and the second ventilation headgear tube (2) is provided with a bottom wall portion (11) for contact with a patient, a top wall portion (12) opposite to the bottom wall portion (11), and a connection portion (13) connected between the top wall portion (12) and the bottom wall portion (11), respectively, the connection portion (13) being arranged to have a circular arc-shaped cross section and being tangential to the bottom wall portion (11) at a portion connected to the bottom wall portion (11).

2. The ventilation headband according to claim 1, characterized in that the cross-sectional outer contour length of the connecting portion (13) and the bottom wall portion (11) is not less than half the cross-sectional perimeter of the entire tube wall.

3. The ventilation headband according to claim 1, wherein the outer wall surface of the bottom wall section (11) is formed as a flat surface or a corrugated surface, or a plurality of protruding points are formed on the outer wall surface of the bottom wall section (11).

4. A ventilation headband according to claim 3, characterized in that the cross-sections of the top wall section (12) and the bottom wall section (11) are parallel to each other and have the same extension, the connecting section (13) being arranged with a semicircular cross-section such that the cross-section of the tube wall is racetrack-shaped.

5. The ventilation headband according to claim 1, characterized in that the top wall section (12) is arranged with an arc-shaped cross-section protruding towards the side remote from the bottom wall section (11).

6. The ventilation headband according to claim 5, characterized in that the top wall section (12) is provided with a semi-elliptical cross-section, the connecting portion (13) being provided with a 1/4 circular cross-section and being tangential to the top wall section (12) at the portion connected to the top wall section (12).

7. The ventilation headband according to claim 1, characterized in that the wall thickness of the top wall section (12) increases from the edge section connected to the connection section (13) to a middle section distant from the connection section (13) such that the outer wall surface of the top wall section (12) forms an outwardly convex arch.

8. The ventilation headband according to claim 1, characterized in that the first ventilation headband duct (1) and the second ventilation headband duct (2) have the same cross-section at symmetrical positions to each other.

9. The ventilation headband according to claim 1, characterized in that at an end remote from the connector port (3) the first ventilation headband tube (1) and the second ventilation headband tube (2) are bent towards each other to allow extension from the cheek of the patient to a person position in a worn state.

10. The ventilation headgear according to claim 1, wherein the ends of the first and second ventilation headgear tubes (1, 2) remote from the connector port (3) are each provided with an interface connector (4) for connection to a patient interface, and/or wherein the outer wall surfaces of the first and second ventilation headgear tubes (1, 2) are each provided with a strap connection structure (14).

11. A ventilation therapy system comprising a positive airway pressure device and a ventilation headgear according to any one of claims 1 to 10 connected by a breathing circuit, wherein the ends of the first and second ventilation headgear tubes (1, 2) remote from the connector port (3) are connected with a patient interface.

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