Pipeline connecting structure of breathing mask and breathing mask

Abstract

The utility model relates to a pipeline connecting structure of a breathing mask and the breathing mask, and relates to the technical field of breathing masks. The pipeline connecting structure of the breathing mask comprises a mask connecting pipe used for being connected with the breathing mask and a nose connecting pipe connected with the mask connecting pipe, and the mask connecting pipe penetrates through the breathing mask in the wall thickness direction of the breathing mask. The nasal connection tube is configured to be located inside the breathing mask, and the nasal connection tube extends into or at a nostril of a patient. The gas (such as oxygen or anesthetic gas and the like) input into the chamber on the inner side of the breathing mask through the mask connecting pipe can be guided by the nose connecting pipe on the inner side of the breathing mask to directly reach the nose of a patient, so that the utilization rate of the oxygen or anesthetic gas can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of breathing masks, in particular to a pipeline connection structure of a breathing mask and a breathing mask. Background Art

[0002] In order to meet the various use environments of the breathing mask, a medical interface may be provided on the breathing mask, for example, a non-invasive pipeline (such as an oxygen access pipeline, an anesthetic gas access pipeline, a pressure measurement pipeline, etc.) may be provided on the breathing mask, so that oxygen or anesthetic gas can be introduced into the breathing mask. However, the existing breathing masks generally have an interface provided on the mask, and oxygen or anesthetic gas enters the breathing mask through the interface, and there is a risk that most of the oxygen or anesthetic gas will be discharged from the exhaust holes and other structures on the breathing mask due to the impact of the airflow in the breathing mask, resulting in a waste of oxygen or anesthetic gas. Utility Model Content

[0003] The utility model provides a pipeline connection structure of a breathing mask and a breathing mask, which are used to solve at least one of the above-mentioned technical problems.

[0004] According to a first aspect of the utility model, the utility model provides a pipeline connection structure of a breathing mask, comprising a mask connection pipe connected to the breathing mask and a nasal connection pipe connected to the mask connection pipe, wherein the mask connection pipe penetrates the breathing mask along the wall thickness direction of the breathing mask, and the nasal connection pipe is configured to be located on the inner side of the breathing mask;

[0005] Wherein, the nasal connecting tube comprises a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connecting tube fluid;

[0006] The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

[0007] In one embodiment, the air outlet is fluidly connected to the tube body through an extension tube so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body so that the air outlet can extend to the patient's nostrils.

[0008] In one embodiment, the tube body is constructed as a U-shaped structure or an arc-shaped structure, and the air inlet interface is respectively arranged on two ends of the opening of the U-shaped structure or the arc-shaped structure.

[0009] In one embodiment, the tube body is configured as an elastic hose, and the elastic hose can be bent at a certain angle relative to the air inlet interface.

[0010] In one embodiment, the air inlet interfaces at two ends of the tube body are symmetrically arranged with respect to the tube body.

[0011] In one embodiment, the air inlet interface is fixedly connected or detachably connected to the end of the mask connecting tube located inside the breathing mask.

[0012] In one embodiment, the air inlet interface is connected to the end of the mask connecting tube located inside the breathing mask by one or more of the following methods: plug-in, clip-on, adhesive bonding or overmolding.

[0013] In one embodiment, a silicone plug is provided at the end of the mask connecting tube located outside the breathing mask.

[0014] According to a second aspect of the utility model, the utility model provides a breathing mask, comprising the above-mentioned pipeline connection structure, and also comprising a mask body, wherein the mask body comprises a main frame, and the mask connecting pipe is integrally arranged with the main frame.

[0015] In one embodiment, a groove portion is symmetrically provided on the main frame, and the mask connecting tube is provided on the groove portion, wherein the groove portion is provided at a position on the main frame corresponding to the patient's nose, on the upper side of the exhaust hole on the main frame, or on the upper side of the curved pipe on the main frame.

[0016] In one embodiment, a storage portion is provided on the inner side of the main frame, and the storage portion is used to store the nasal connection tube after being bent at a certain angle.

[0017] According to a third aspect of the present invention, the present invention provides a breathing mask, comprising:

[0018] A mask body, the mask body comprising a main frame;

[0019] a mask connecting pipe, a portion of which is located outside the main frame, and another portion of which is located inside the main frame; and

[0020] A nasal connection tube connected to a portion of the mask connection tube located on the inner side of the main frame;

[0021] Wherein, the nasal connecting tube comprises a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connecting tube fluid;

[0022] The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

[0023] In one embodiment, the air outlet is fluidly connected to the tube body through an extension tube so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body so that the air outlet can extend to the patient's nostrils.

[0024] In one embodiment, the pipe body is constructed as a U-shaped structural member or an arc-shaped structural member, and the air inlet interface is respectively arranged on two ends of the opening of the U-shaped structural member or the arc-shaped structural member.

[0025] In one embodiment, a storage portion is provided on the inner side of the main frame, the tube body is constructed as an elastic hose, the elastic hose can be bent at a certain angle relative to the air inlet interface, and the storage portion is used to store the tube body after being bent at a certain angle.

[0026] In one embodiment, a groove portion is symmetrically provided on the main frame, and the mask connecting tube is constructed to penetrate the main frame from the groove portion along the wall thickness direction of the main frame, so that a part of the mask connecting tube is located in the groove portion, and the other part of the mask connecting tube is located on the inner side of the main frame.

[0027] In one embodiment, the groove portion is disposed at a position on the main frame corresponding to the patient's nose, an upper side of an exhaust hole on the main frame, or an upper side of a curved pipe on the main frame.

[0028] In one embodiment, a silicone plug is provided on the portion of the mask connecting tube located in the groove portion.

[0029] According to a fourth aspect of the present utility model, the present utility model provides a breathing mask, comprising:

[0030] A mask body, the mask body comprising a main frame, the outer side of the main frame being symmetrically provided with grooves;

[0031] a mask connecting pipe, which is integrally provided with the main frame, and is configured to penetrate the main frame from the groove portion along the wall thickness direction of the main frame, so that a portion of the mask connecting pipe is located in the groove portion, and another portion of the mask connecting pipe is located on the inner side of the main frame; and

[0032] A nasal connecting tube is connected to the portion of the mask connecting tube located on the inner side of the main frame.

[0033] In one embodiment, the nasal connection tube includes a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connection tube fluid;

[0034] The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

[0035] In one embodiment, the air outlet is fluidly connected to the tube body through an extension tube so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body so that the air outlet can extend to the patient's nostrils.

[0036] In one embodiment, the pipe body is constructed as a U-shaped structural member or an arc-shaped structural member, and the air inlet interface is respectively arranged on two ends of the opening of the U-shaped structural member or the arc-shaped structural member.

[0037] In one embodiment, a storage portion is provided on the inner side of the main frame, the tube body is constructed as an elastic hose, the elastic hose can be bent at a certain angle relative to the air inlet interface, and the storage portion is used to store the tube body after being bent at a certain angle.

[0038] In one embodiment, the groove portion is disposed at a position on the main frame corresponding to the patient's nose, an upper side of an exhaust hole on the main frame, or an upper side of a curved pipe on the main frame.

[0039] In one embodiment, a silicone plug is provided on the portion of the mask connecting tube located in the groove portion.

[0040] Compared with the prior art, the advantage of the utility model is that the gas (such as oxygen or anesthetic gas, etc.) input into the inner chamber of the breathing mask through the mask connecting tube can be guided by the nasal connecting tube inside the breathing mask and directly reach the patient's nose, thereby reducing the phenomenon of oxygen or anesthetic gas being dispersed by the airflow in the breathing mask chamber and the problem of being discharged through the exhaust holes of the breathing mask and other structures, thereby greatly improving the utilization rate of oxygen or anesthetic gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0042] Figure 1A It is a schematic diagram of the three-dimensional structure of a breathing mask with an interface tube in the prior art, wherein the silicone plug on the interface tube is closed;

[0043] Figure 1BIt is a schematic diagram of the three-dimensional structure of a breathing mask with an interface tube in the prior art, wherein the silicone plug on the interface tube is opened;

[0044] Figure 2 1 is a three-dimensional structural schematic diagram of the pipeline connection structure of the breathing mask in the embodiment of the utility model (observed from the outside);

[0045] Figure 3 1 is a three-dimensional structural schematic diagram of the pipeline connection structure of the breathing mask in the embodiment of the utility model (viewed from the inside);

[0046] Figure 4 It is a front view of the main frame of the breathing mask in the embodiment of the utility model;

[0047] Figure 5 yes Figure 4 Sectional view at AA;

[0048] Figure 6 yes Figure 5 Cross-sectional view at BB;

[0049] Figure 7 yes Figure 3 A schematic structural diagram of one embodiment of a nasal connecting tube is shown;

[0050] Figure 8 yes Figure 3 A schematic structural diagram of another embodiment of the nasal connecting tube shown;

[0051] Fig. 9 This is a schematic diagram of wearing a breathing mask in one embodiment of the utility model;

[0052] Fig.10 is a schematic diagram of wearing a breathing mask in another embodiment of the utility model;

[0053] Fig.11 It is a schematic diagram of the structure of the nasal connecting tube of the utility model after being bent at a certain angle.

[0054] Reference numerals:

[0055] 1. Main frame; 2. Bend pipe; 3. Silicone plug; 5. Pad; 6. Forehead pad; 7. Exhaust hole;

[0056] 4. Nose connection tube; 11. Mask connection tube; 12. Interface tube; 13. Groove; 14. Storage part;

[0057] 41. pipe body; 42. air inlet interface; 43. air outlet; 44. extension pipe;

[0058] 411. Arm; 412. Beam. DETAILED DESCRIPTION

[0059] The utility model will be further described below in conjunction with the accompanying drawings.

[0060] like Figure 1A and Figure 1B As shown, in order to facilitate the measurement of the pressure in the chamber or the access to oxygen and anesthetic gas, the existing breathing mask usually has an interface tube 12 on the mask body or the elbow 2, and a silicone plug 3 is installed on the interface tube 12. When there is no need to measure the pressure in the chamber or to access oxygen, the silicone plug 3 blocks the interface tube 12 (such as Figure 1A When the pressure in the chamber needs to be measured or oxygen needs to be connected, open the silicone plug 3 (as shown in the figure). Figure 1B As shown in the figure, the pressure in the chamber is measured or oxygen or anesthetic gas is introduced through the interface tube 12. For the convenience of mold forming, the existing breathing mask usually sets the interface tube 12 on the lower side of the breathing mask. It can be understood that after the breathing mask is normally worn, the interface tube 12 is located near the edge of the patient's lips. Then, in the ventilation state, the oxygen (or anesthetic gas) entering the inner chamber of the breathing mask through the interface tube 12 will be impacted by the airflow in the chamber, so that most of the oxygen (or anesthetic gas) will be discharged through the exhaust hole 7 on the main body of the breathing mask or the bend 2, resulting in a waste of oxygen (or anesthetic gas).

[0061] In order to solve the above technical problems, a pipeline connection structure of a breathing mask and a breathing mask of the present invention are proposed.

[0062] According to the first aspect of the utility model, Figure 2-Figure 11 As shown, the utility model provides a pipeline connection structure of a breathing mask, which can be connected to a non-invasive pipeline (such as an oxygen access pipeline, an anesthetic gas access pipeline, a pressure measurement pipeline, etc.), so that oxygen, anesthetic gas, etc. can be input to the patient through the breathing mask, or the chamber pressure in the breathing mask can be measured.

[0063] Specifically, if Figure 2 and Figure 3 As shown, the pipeline connection structure of the breathing mask of the utility model includes a mask connecting pipe 11 for connecting to the breathing mask and a nasal connecting pipe 4 connected to the mask connecting pipe 11. The mask connecting pipe 11 is connected along the wall thickness direction of the breathing mask (i.e., the wearing direction of the breathing mask, such as Fig. 9 and Fig.10 As shown by the arrow in the figure, it penetrates the breathing mask. Figure 3 As shown, the nasal connection tube 4 is configured to be located inside the respiratory mask, and the nasal connection tube 4 extends into the patient's nostrils (eg, Fig. 9 as shown) or at the nostrils (as Fig.10As shown). Therefore, the gas (e.g., oxygen or anesthetic gas, etc.) input into the breathing mask chamber through the mask connecting tube 11 can be guided by the nasal connecting tube 4 to directly reach the patient's nose, thereby reducing the phenomenon that the oxygen or anesthetic gas is dispersed by the airflow in the breathing mask chamber, thereby improving the utilization rate of the oxygen or anesthetic gas.

[0064] like Figure 4 , Figure 7 and Figure 8 As shown, the nasal connecting tube 4 includes a fluid-connected tube body 41 , at least one air inlet interface 42 and at least one air outlet 43 , and the air inlet interface 42 is fluid-connected to the mask connecting tube 11 .

[0065] In an optional embodiment, if Figure 7 As shown, the air outlet 43 is in fluid communication with the tube body 41 through the extension tube 44, so that the air outlet 43 can extend into the patient's nostrils, such as Fig. 9 shown.

[0066] In an optional embodiment, if Figure 8 As shown, the air outlet 43 is directly disposed on the tube body 41, so that the air outlet 43 can extend to the patient's nostrils, such as Fig.10 shown.

[0067] The number of the air outlet 43 can be one, or two can be provided corresponding to the nostrils of the patient.

[0068] Furthermore, the tube body 41 is constructed as an elastic hose, which can be made of a soft rubber material (for example, silicone, TPE, TPU, etc.). Therefore, the elastic hose can be bent at a certain angle relative to the air inlet interface 42 toward the inner wall of the breathing mask. Fig.11 As shown, the elastic hose can be bent at a 90° angle at the position where it is connected to the air inlet interface 42, so that the elastic hose is Figure 7 or Figure 8 The horizontally extended state shown in the figure is changed into a vertically stored state. And because the elastic hose has a certain elasticity, when the elastic hose is released, it can be expanded to the following state under the action of its own elastic force: Figure 7 or Figure 8 Shown in horizontal extended position.

[0069] The air inlet port 42 is disposed at the end of the pipe body 41, and the number of the air inlet port 42 may be one or more. Figure 7 and Figure 8As shown, two air inlet interfaces 42 are provided, and the two air inlet interfaces 42 are respectively provided at both ends of the tube body 41 and are symmetrically provided about the tube body 41. It can be understood that the number of the mask connecting tubes 11 corresponds to the number of the air inlet interfaces 42 one by one, that is, the two air inlet interfaces 42 correspond to the two mask connecting tubes 11 on the breathing mask, so the tube body 41 can be constructed as a U-shaped structural member, and the air inlet interfaces 42 are respectively provided at the two ends of the opening of the U-shaped structural member, and the air outlet can be provided between the two air inlet interfaces 42 on the U-shaped structural member, and its position can be provided at a suitable position on the U-shaped structural member as required, for example, at the arc corner of the U-shaped structural member.

[0070] It can be understood that the pipe body can also be constructed as an arc-shaped structural member.

[0071] Optionally, the air inlet interface 42 is fixedly connected to the end of the mask connecting tube 11 located on the inner side of the breathing mask, and the tube body 41 can be set as an elastic hose with a certain elasticity, so that when the nasal connecting tube 4 is not in use, the tube body 41 can be bent at a certain angle (for example, 90°) and stored on the inner side of the breathing mask, thereby improving the convenience of use.

[0072] Furthermore, the air inlet interface 42 and the end of the mask connecting tube 11 located inside the breathing mask can be connected by one or more of the following methods: plug-in, clip-on, bonding or overmolding.

[0073] like Fig. 9 As shown, the air inlet interface 42 is connected to the end of the mask connecting tube 11 located inside the breathing mask by plugging. For example, the end of the mask connecting tube 11 located inside the breathing mask can be inserted into the air inlet interface 42 and an adhesive layer can be provided between the two to fix the two together; or the air inlet interface 42 can be inserted into the end of the mask connecting tube 11 located inside the breathing mask and an adhesive layer can be provided between the two to fix the two together.

[0074] like Figure 7 and Figure 8 As shown, the tube body 41 is constructed as a U-shaped structure, which has two arms 411 and a beam 412 connecting the two arms 411. The end sides of the two arms 411 are respectively connected to the air inlet interface 42. The diameter of the air inlet interface 42 can be slightly larger than the diameter of the tube body 41, so that the end of the mask connecting tube 11 located on the inner side of the breathing mask can be inserted into the air inlet interface 42. The tube body 41 is constructed as a U-shaped structure to connect the two air inlet interfaces 42, and an air outlet 43 (such as 43) can be set on its beam 412 and / or arm 411. Figure 8As shown in the figure, the air outlet 43 can be located near the lower part of the patient's nostrils. Therefore, the oxygen or anesthetic gas input into the breathing mask through the mask connecting tube 11 can be directly guided to the patient's nose through the tube body 41, avoiding the exhaust of these gases from the exhaust hole and other structures, so that the utilization rate of oxygen and anesthetic gas can be improved.

[0075] Alternatively, an extension tube 44 (such as Figure 7 As shown in the figure, an air outlet 43 is arranged at the end of the extension tube 44, so that the air outlet 43 can be extended into the patient's nostrils. The extension tube 44 can be extended in a direction substantially perpendicular to the tube body 41, or the angle between the extension tube 44 and the tube body 41 is slightly smaller than 90°. Then, after the extension tube 44 (and the air outlet 43 at the end thereof) is extended into the patient's nostrils, it can be inserted into the patient's nostrils by its own elastic force and can avoid accidental falling off from the patient's nostrils, so that the oxygen or anesthetic gas input into the breathing mask through the mask connecting tube 11 can be directly guided to the patient's nose through the tube body 41, and these gases can be prevented from being discharged from the exhaust hole and other structures, so that the utilization rate of oxygen and anesthetic gas can be improved.

[0076] Therefore, it can be understood that the force for inserting the extension tube 44 into the nasal cavity comes from the elastic force of the extension tube 44 and / or the tube body 41 .

[0077] It is found in practice that a breathing mask provided with the pipeline connection structure of the utility model can increase the utilization rate of oxygen by more than 87%.

[0078] In addition, it is conceivable that a card slot and a card block can be respectively provided on the air inlet interface 42 and the end of the mask connecting tube 11 located inside the breathing mask, and the air inlet interface 42 and the end of the mask connecting tube 11 located inside the breathing mask can be connected through the card slot and the card block.

[0079] Optionally, the air inlet interface 42 can also be detachably connected to the end of the mask connecting tube 11 located on the inner side of the breathing mask, and the tube body 41 can be a common pipeline structure or an elastic hose. Therefore, the nasal connecting tube 4 can be packaged and used separately as an accessory of the breathing mask. When the nasal connecting tube 4 is needed, the air inlet interface 42 can be installed on the mask connecting tube 11; when the nasal connecting tube 4 is not needed, the air inlet interface 42 can be removed from the mask connecting tube 11 and stored separately.

[0080] Furthermore, the air inlet interface 42 is connected to the end of the mask connecting tube 11 located inside the breathing mask by plugging or clamping. For example, the end of the mask connecting tube 11 located inside the breathing mask can be inserted into the air inlet interface 42, or the air inlet interface 42 can be inserted into the end of the mask connecting tube 11 located inside the breathing mask.

[0081] like Figure 2 As shown, the end of the mask connecting tube 11 located outside the breathing mask is provided with a silicone plug 3, which is connected to the mask connecting tube 11 through a connecting belt. When the mask connecting tube 11 needs to be used, the silicone plug 3 can be removed to open the mask connecting tube 11. When the mask connecting tube 11 is not needed, the silicone plug 3 is inserted into the mask connecting tube 11 to close it. The connecting belt on the silicone plug 3 can ensure that the silicone plug 3 will not be lost when the silicone plug 3 is removed to use the mask connecting tube 11.

[0082] According to other aspects of the utility model, the utility model also provides a breathing mask, including the pipeline connection structure described above, and also including a mask body, the mask body including a main frame 1, and the mask connecting pipe 11 is integrally arranged with the main frame 1. The mask connecting pipe 11 is arranged on the upper side of the main frame 1, the upper side of the exhaust hole on the main frame 1, or the upper side of the bent pipe 2 on the main frame 1.

[0083] like Figure 4 , Figure 5 and Figure 6 As shown, the mask connecting tube 11 can be arranged on the upper side of the main frame 1, and two mask connecting tubes 11 can be arranged, and the two mask connecting tubes 11 are symmetrically arranged at positions on the main frame 1 corresponding to the patient's nose, so that when the tube main body 41 is respectively adapted and connected to the mask connecting tube 11, the normal use form of the nasal connecting tube 4 can be maintained when the nasal connecting tube 4 is in the extended state; and because the mask connecting tube 11 is located at the position corresponding to the patient's nose, the length of the U-shaped structure of the tube main body 41 can be set shorter.

[0084] Since there are two mask connecting tubes 11, when oxygen is introduced, any one of the mask connecting tubes 11 can be selected to be connected to the oxygen source, and the other mask connecting tube 11 can also be used as a pressure test interface.

[0085] like Figure 6 As shown, the two mask connecting tubes 11 are integrally arranged with the main frame 1. The main frame 1 is made of hard material (such as PC, PP, ABS, etc.). The two mask connecting tubes 11 can be made of the same material as the main frame 1 or different materials, for example, made of soft rubber material (silicone, TPE, TPU, etc.).

[0086] The mask connecting tube 11 can penetrate the main frame 1 along the wall thickness direction of the main frame 1, and a portion thereof protrudes from the outside of the main frame 1 for connecting to an external gas source (oxygen source or anesthetic gas source) or a pressure detection pipeline; a portion thereof also protrudes from the inside of the main frame 1 for connecting to the air inlet interface 42 of the tube body 41.

[0087] like Figure 2 and Figure 6 As shown, a groove portion 13 is symmetrically arranged on the main frame 1, and the groove portion 13 is arranged at a position on the main frame 1 corresponding to the patient's nose. The mask connecting tube 11 passes through the main frame 1 from the groove portion 13 along the wall thickness direction of the main frame 1, so that a part of the mask connecting tube 11 is located in the groove portion 13, and the other part of the mask connecting tube 11 is located on the inner side of the main frame 1. The groove portion 13 is used to accommodate the part of the mask connecting tube 11 located on the outer side of the main frame 1 so that it does not protrude from the main frame 1.

[0088] Alternatively, it can also be imagined that the mask connecting tube 11 and the main frame 1 are formed separately, and a connecting hole can be set on the main frame 1, the mask connecting tube 11 is inserted into the connecting hole, and the main frame 1 is connected to the mask connecting tube 11 through the connecting hole.

[0089] like Fig. 9 As shown, after the breathing mask is worn on the patient's face, if the nasal connection tube 4 is needed, it is unfolded, and the extension tube 44 on the tube body 41 extends toward the patient's nostrils, so that the two air outlets 43 can be respectively inserted into the patient's nostrils under the elastic force of the tube body 41. After the silicone plug 3 is removed, oxygen or anesthetic gas can be directly delivered to the patient's nose through the mask connection tube 11, the air inlet interface 42, the tube body 41, and the air outlet 43 in sequence, so that the gas will not be dispersed by the airflow in the chamber inside the breathing mask, and it is also avoided that the oxygen or anesthetic gas is discharged from the exhaust hole 7 and other structures.

[0090] like Fig.10 As shown, after the breathing mask is worn on the patient's face, if the nasal connecting tube 4 is needed, it is unfolded, and the two air outlets 43 on the tube body 41 can be located respectively under the patient's nostrils under the action of the elastic force of the tube body 41, and the silicone plug 3 is removed, and oxygen or anesthetic gas can be directly delivered to the patient's nose through the mask connecting tube 11, the air inlet interface 42, the tube body 41, and the air outlet 43 in sequence, so that the gas will not be dispersed by the airflow in the chamber inside the breathing mask, and the oxygen or anesthetic gas is prevented from being discharged from the exhaust hole 7 and other structures; this structure can prevent the patient from having a foreign body sensation, thereby improving the comfort of use.

[0091] like Fig.11 As shown, a receiving portion 14 is provided on the inner side of the main frame 1, and the receiving portion 14 may be a structure such as a groove. The receiving portion 14 is used to receive the nasal connecting tube 4 after being bent at a certain angle.

[0092] After the breathing mask is worn on the patient's face, if the nasal connection tube 4 is not needed, the nasal connection tube 4 can be stored in the storage portion 14 inside the breathing mask by bending the tube body 41. It should be noted that when the nasal connection tube 4 is stored in the storage portion 14, it is necessary to ensure that the normal use of the mask connection tube 11 as a pressure test interface is not affected.

[0093] Therefore, it is conceivable that a snap-fit ​​structure or a hook-shaped structure can be provided in the storage portion 14, so that the bent tube body 41 can be fixed in the storage portion 14. When it is needed to be used, the tube body 41 is separated from the snap-fit ​​structure or the hook-shaped structure, and the tube body 41 is restored to its original position under the action of its own elastic force. Fig. 9 or Fig.10 In the extended state shown, gas can be delivered.

[0094] In addition, the mask body may also include a cushion, which is arranged on the periphery of the main frame 1 and contacts the patient's facial skin when in use, so the cushion can be made of soft rubber material, such as silicone, rubber, TPE and other materials. The main frame 1 and the cushion together constitute a sealed chamber inside the respiratory mask to accommodate the patient's nose and / or mouth. When in use, the airflow from the ventilator forms a continuous positive pressure in the above-mentioned sealed chamber to achieve a therapeutic effect. The cushion can also adopt various structures and settings in the prior art, which will not be described in detail in the utility model.

[0095] like Figure 2 As shown, the mask body may also include a forehead support and a forehead pad 6. The forehead support may be on the main frame 1, and is used to mechanically adjust the height of the patient's forehead, thereby improving the comfort and sealing of the breathing mask. The forehead pad 6 is usually made of soft rubber material, and is arranged on the forehead support. When used, it directly contacts the patient's forehead to improve the wearing comfort of the forehead position. The forehead support and the forehead pad 6 may also adopt various structures and settings in the prior art, and the utility model will not repeat them.

[0096] like Figure 2 As shown, the breathing mask may further include an elbow 2, which is a hollow pipe structure. It is connected between the mask body and the ventilator pipe, and can provide a certain degree of rotational freedom and / or swinging freedom, reducing the impact of the swing or drag from the ventilator pipe on the air tightness of the chamber. The elbow 2 can also adopt various structures and settings in the prior art, which will not be described in detail in the present utility model.

[0097] In addition, one or more of the main frame 1, the elbow 2 and the cushion of the breathing mask may be provided with an exhaust hole 7. Figure 2As shown, an exhaust hole 7 is provided on the main frame 1 for discharging the patient's exhaled gas out of the breathing mask. The exhaust hole 7 can also adopt various structures and settings in the prior art, which will not be described in detail in the present utility model.

[0098] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pipe connection structure for a breathing mask, characterized in that: It includes a mask connecting tube for connecting to the breathing mask and a nasal connecting tube connected to the mask connecting tube, wherein the mask connecting tube penetrates the breathing mask along the wall thickness direction of the breathing mask, and the nasal connecting tube is configured to be located on the inner side of the breathing mask; Wherein, the nasal connecting tube comprises a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connecting tube fluid; The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

2. The pipe connection structure of the breathing mask according to claim 1, characterized in that: The air outlet is in fluid communication with the tube body through an extension tube, so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body, so that the air outlet can extend to the patient's nostrils.

3. The pipe connection structure of the breathing mask according to claim 1 or 2, characterized in that: The pipe body is constructed as a U-shaped structural member or an arc-shaped structural member, and the air inlet interfaces are respectively arranged on two ends of the opening of the U-shaped structural member or the arc-shaped structural member.

4. The pipe connection structure of the breathing mask according to claim 1 or 2, characterized in that: The tube body is configured as an elastic hose, and the elastic hose can be bent at a certain angle relative to the air inlet interface.

5. The pipe connection structure of the breathing mask according to claim 1 or 2, characterized in that: The air inlet interfaces at two ends of the tube body are symmetrically arranged with respect to the tube body.

6. The pipe connection structure of the breathing mask according to claim 1 or 2, characterized in that: The air inlet interface is fixedly connected or detachably connected to the end of the mask connecting tube located on the inner side of the breathing mask.

7. The pipe connection structure of the breathing mask according to claim 1 or 2, characterized in that: The air inlet interface is connected to the end of the mask connecting tube located inside the breathing mask by one or more of the following methods: plug-in, clip-on, bonding or overmolding.

8. The pipe connection structure of the breathing mask according to claim 7, characterized in that: The end of the mask connecting tube located outside the breathing mask is provided with a silicone plug.

9. A breathing mask, characterized in that: It comprises the pipeline connection structure described in any one of claims 1 to 8, and also comprises a mask body, wherein the mask body comprises a main frame, and the mask connection pipe is integrally arranged with the main frame.

10. The breathing mask according to claim 9, characterized in that The main frame is symmetrically provided with groove portions, and the mask connecting tube is provided on the groove portions, wherein the groove portions are provided at a position on the main frame corresponding to the patient's nose, on the upper side of the exhaust hole on the main frame, or on the upper side of the curved pipe on the main frame.

11. The breathing mask according to claim 9, characterized in that A storage portion is provided on the inner side of the main frame, and the storage portion is used to store the nasal connection tube after being bent at a certain angle.

12. A breathing mask, characterized in that: include: A mask body, the mask body comprising a main frame; A mask connecting pipe, a portion of which is located outside the main frame, and another portion of which is located inside the main frame; as well as A nasal connection tube connected to a portion of the mask connection tube located on the inner side of the main frame; Wherein, the nasal connecting tube comprises a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connecting tube fluid; The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

13. The breathing mask according to claim 12, characterized in that The air outlet is in fluid communication with the tube body through an extension tube, so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body, so that the air outlet can extend to the patient's nostrils.

14. The breathing mask according to claim 13, characterized in that The pipe body is constructed as a U-shaped structural member or an arc-shaped structural member, and the air inlet interface is respectively arranged on two ends of the opening of the U-shaped structural member or the arc-shaped structural member.

15. The breathing mask according to claim 14, characterized in that A receiving portion is provided on the inner side of the main frame, the tube body is constructed as an elastic hose, the elastic hose can be bent at a certain angle relative to the air inlet interface, and the receiving portion is used to receive the tube body after being bent at a certain angle.

16. The breathing mask according to claim 12, characterized in that The main frame is symmetrically provided with groove portions, and the mask connecting tube is constructed to penetrate the main frame from the groove portion along the wall thickness direction of the main frame, so that a part of the mask connecting tube is located in the groove portion, and the other part of the mask connecting tube is located on the inner side of the main frame.

17. The breathing mask according to claim 16, characterized in that The groove portion is arranged at a position on the main frame corresponding to the patient's nose, on the upper side of the exhaust hole on the main frame, or on the upper side of the curved pipe on the main frame.

18. The breathing mask according to claim 16, characterized in that A silicone plug is provided on the portion of the mask connecting tube located in the groove portion.

19. A breathing mask, characterized in that: include: A mask body, the mask body comprising a main frame, the outer side of the main frame being symmetrically provided with grooves; a mask connecting pipe, which is integrally provided with the main frame, and is configured to penetrate the main frame from the groove portion along the wall thickness direction of the main frame, so that a portion of the mask connecting pipe is located in the groove portion, and another portion of the mask connecting pipe is located on the inner side of the main frame; and A nasal connecting tube is connected to the portion of the mask connecting tube located on the inner side of the main frame.

20. The breathing mask according to claim 19, characterized in that The nasal connecting tube comprises a tube body, and two ends of the tube body are respectively provided with air inlet interfaces, and the air inlet interfaces are respectively connected to the corresponding mask connecting tube fluid; The tube body is connected to or provided with an air outlet that is fluidly connected to the air inlet interface. The air outlet is located between the air inlet interfaces at the two ends of the tube body, and the air outlet is used to extend into or at the patient's nostrils.

21. The breathing mask according to claim 20, characterized in that The air outlet is in fluid communication with the tube body through an extension tube, so that the air outlet can extend into the patient's nostrils; or the air outlet is directly arranged on the tube body, so that the air outlet can extend to the patient's nostrils.

22. The breathing mask according to claim 20, characterized in that The pipe body is constructed as a U-shaped structural member or an arc-shaped structural member, and the air inlet interface is respectively arranged on two ends of the opening of the U-shaped structural member or the arc-shaped structural member.

23. The breathing mask according to claim 20, characterized in that A receiving portion is provided on the inner side of the main frame, the tube body is constructed as an elastic hose, the elastic hose can be bent at a certain angle relative to the air inlet interface, and the receiving portion is used to receive the tube body after being bent at a certain angle.

24. The breathing mask according to claim 19, characterized in that The groove portion is arranged at a position on the main frame corresponding to the patient's nose, on the upper side of the exhaust hole on the main frame, or on the upper side of the curved pipe on the main frame.

25. The breathing mask according to claim 19, characterized in that A silicone plug is provided on the portion of the mask connecting tube located in the groove portion.

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