Modular elbow frame assembly for breathing machine

Abstract

The invention relates to the technical field of medical instruments, and provides a modular elbow frame assembly for a breathing machine, which comprises an elbow, a hose, a tubular connector, an external connecting part, a frame, a noise reduction part and a quick release device, and is matched with a patient interface pad and a breathing machine tube for use; wherein the quick release device and the elbow are integrally formed, and the first connector is detachably connected to the patient interface pad through the quick release device. The detachable modular design is carried out on the elbow, different elbows can be replaced according to different types of patients to be connected with the hose, and the pressure of airflow flowing into the airway of the patient is adjusted by replacing the elbows with different hole diameters or numbers of exhaust holes; the quick release device realizes quick disassembly between the elbow and a frame or a patient interface pad such as a nose mask, a full face mask, a nose pillow or a nose pad mask; the patient can autonomously select whether to configure the noise reduction component and connect the respirator tube through a hose or directly connect the respirator tube through a tubular connector.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a modular elbow frame assembly for a ventilator, which is used in conjunction with a patient interface pad such as a mask or a nasal mask to collaboratively deliver pressurized air from the ventilator into the patient's airway to achieve the purpose of treatment. Background Art

[0002] Obstructive Sleep Apnea (OSA) is a common sleep breathing disorder that can occur in anyone. Apnea is defined as a cessation of airflow from the mouth and nose for more than 10 seconds. If apnea occurs more than 30 times or the sleep disordered breathing index exceeds 5 times during a 7-hour sleep, plus daytime fatigue and sleepiness, it can be diagnosed as obstructive sleep apnea syndrome. Sleep apnea can cause patients to lack fresh air for a long time, resulting in a decrease in blood oxygen concentration and an increase in blood viscosity. The lungs, heart and other organs will be damaged, which can cause high blood pressure, coronary heart disease, cerebrovascular disease, mood disorders, dry mouth, pharyngitis and other diseases.

[0003] Continuous Positive Airway Pressure (CPAP) is a common and effective treatment for patients with obstructive sleep apnea syndrome. This treatment method provides a certain positive pressure through the CPAP machine, which is compressed by a mechanical pump to provide air of a single pressure, and then acts on the pharynx through the airflow delivery pipe and elbow to increase the positive pressure of the patient's pharynx and generate negative pressure to resist inspiration. In order to reduce the resistance to inspiration, the airflow flowing into the patient's pharynx will stimulate the upper airway pressure and the human body's mechanical receptors to increase the tension of the patient's upper airway dilator muscles, thereby preventing the collapse of the upper airway, keeping the upper airway open, and eliminating local tissue edema.

[0004] The exhaust channel for discharging the patient's exhaled gas is usually located on the elbow connecting the ventilator tube and the frame or the patient interface pad, which is used to prevent the exhaled carbon dioxide from re-accumulating and provide a certain amount of air circulation for the patient's exhaled air. When the airflow flows into the outside world through the elbow exhaust hole, a certain amount of noise will be generated, and the noise will not only affect the patient's experience, but also affect the sleep quality of the bed partner. Airflow noise and sound have completely different statistical and spectral characteristics. One of the reasons for the noise is that the airflow collides with the outside airflow when it flows out of the vent, and the flowing air interferes with each other or rubs against the surrounding objects. The elbow exhaust port has a separation effect on the airflow. The faster the air flow rate, the more turbulence, and the greater the wind noise. Moreover, the wind noise will increase with the increase of wind speed. Ordinary elbows will generate backflow in the gap of the airflow outlet, which will not only generate large wind noise, but also have adverse emotional and mental effects on patients, and even threaten their health.

[0005] In addition, the formation of elbow noise is also related to the total aperture size of the outlet. The number and aperture size of the elbow vents currently available on the market are fixed and cannot be selected by patients. In the face of health risks to patients, the existing different elbows still only allow patients to adapt to almost the same breathing pressure under different CPAP pressures, which is not conducive to patients choosing a personalized treatment method that suits their own conditions.

[0006] During the gas circulation process, another important challenge is how to ensure the stability of the sealing interface connection. The sealing structure of the patient interface pad of the mask or nasal mask used for positive air pressure therapy may be affected by the corresponding air pressure, resulting in damage to the seal. Therefore, in order to increase the sealing stability, the connecting tube and the mask are often designed as an integral and inseparable whole. However, due to the long distance between the continuous positive airway pressure therapy device and the patient's respiratory tract, the patient may encounter problems such as tangling and inconvenience in disassembly of the tube. In order to ensure the convenience and comfort of the patient's wearing, elbows that can be disassembled from the mask are introduced on the market, making it more convenient for patients to move at night. However, the existing elbows still have problems such as difficulty in connection and removal during the disassembly process, and the sealing between the elbow and the patient interface and the hose interface cannot be guaranteed.

[0007] Currently, there is a lack of modular elbow frame assembly designs that can be quickly disassembled on the market. Therefore, we designed a modular elbow frame assembly that can be quickly disassembled and can adapt to different airflow pressures and put it on the market for patients to choose. The optional new modular elbow assembly significantly improves the friendliness of CPAP treatment. Summary of the invention

[0008] The purpose of the present invention is to solve the existing shortcomings and provide a modular elbow frame assembly for a ventilator.

[0009] The technical solution adopted by the present invention to solve the technical problem is: a modular elbow frame assembly for a ventilator, configured to provide positive pressure breathing gas to the airway of a patient, characterized in that it includes:

[0010] a hose for connection to a ventilator tube, an elbow connected between the hose and a patient interface cushion and for delivering pressurized gas to the patient's airway, and a quick release device for detachably connecting the elbow and the patient interface cushion;

[0011] The elbow has a first joint and a second joint, and the connection between the first joint and the second joint is curved;

[0012] The quick release device is disposed on the first joint of the elbow and is integrally formed with the elbow, and the first joint is detachably connected to the patient interface pad through the quick release device;

[0013] One end of the hose is detachably connected to the second connector of the elbow, and the other end is connected to the ventilator tube and is used to deliver pressurized air through the elbow to the patient's airway for the patient to breathe;

[0014] The elbow has at least one vent, which is used to release the patient's exhaled gas to flow continuously to the external environment. The elbow has a plurality of exhaust holes at the vent, through which the elbow is connected to the external environment and the patient's exhaled gas is discharged out of the elbow. The maximum total surface area of ​​the plurality of exhaust holes is at most 5 square centimeters.

[0015] The weight of the elbow is at most 20g;

[0016] When the elbow is connected to the hose, a portion of the outer wall of the second joint fits against the inner wall of the hose.

[0017] Furthermore, the quick release device includes a pair of protrusions respectively arranged on both sides of the first joint and extending outward, the front end of the protrusion has a hook portion, the patient interface pad has a fixing portion for the hook portion to be attached and covered, an annular positioning stop arm is arranged on the outer edge surface of the first joint, and the fixing portion on the patient interface pad is embedded between the annular positioning stop arm and the hook portion of the protrusion to rotationally connect the patient interface pad and the first joint.

[0018] Furthermore, the hose includes a first end close to the elbow, a second end away from the elbow, and a spiral tube arranged between the first end and the second end and composed of a plurality of adjacent coils. The hose is detachably connected to the elbow through the first end and delivers the pressurized air of the ventilator into the patient's airway.

[0019] Furthermore, the elbow is detachably connected to the first end of the hose via a buckle.

[0020] Furthermore, the elbow is detachably connected to the first end of the hose via a magnet.

[0021] Furthermore, the second end is connected to a breathing machine tube, and a rotating component for rotationally connecting the hose to the breathing machine tube is provided on the second end of the hose.

[0022] Further, the angle α formed by the axis of the exhaust hole and the axis of symmetry of the elbow first joint is in the range of 0-45° to guide and discharge the air exhaled by the patient.

[0023] The present invention also provides a modular elbow frame assembly for a ventilator, configured to provide positive pressure breathing gas to the airway of a patient, characterized in that it includes:

[0024] A hose for connecting to a ventilator tube, a frame for connecting to a patient interface such as a mask or a nasal mask, an elbow connected between the hose and the frame and used to deliver pressurized gas to the patient's airway, and a quick release device for detachably connecting the frame and the elbow;

[0025] The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for a detachable connection frame;

[0026] The quick release device is arranged on the first joint of the elbow and is formed integrally with the elbow, and the elbow is detachably connected to the frame through the quick release device;

[0027] One end of the hose is detachably connected to the second connector of the elbow, and the other end is connected to the ventilator and used to deliver pressurized air through the elbow to the patient's airway for the patient to breathe;

[0028] The frame is provided with a fixing port connected to the elbow, and the fixing port is provided with a receiving structure matched with a quick release device on the elbow;

[0029] The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The elbow is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the elbow. The surface area of ​​the plurality of exhaust holes accounts for 3%-50% of the surface area of ​​the elbow.

[0030] Furthermore, the fixing port has at least one of the following characteristics:

[0031] The circumference of the fixed opening ranges from 10 to 120 mm;

[0032] The fixing opening area occupies 5%-50% of the outer surface area of ​​the frame;

[0033] The diameter range of the fixed port is 3-40 mm;

[0034] The wall thickness of the fixing opening is in the range of 0.3-5 mm.

[0035] The present invention also provides a modular elbow frame assembly for a ventilator, configured to provide positive pressure breathing gas to the airway of a patient, characterized in that it includes:

[0036] a tubular connector for connection to a ventilator tube, an elbow connected between the tubular connector and a patient interface cushion and for delivering pressurized gas to the patient's airway, and a quick release device for detachably connecting the elbow and the patient interface cushion;

[0037] The elbow has a first joint and a second joint, and the connection between the first joint and the second joint is curved;

[0038] The tubular connector is detachably connected to the second connector of the elbow, and the second connector and the tubular connector are connected to form an airflow channel to receive and transport the positive pressure airflow flowing out of the ventilator tube to the elbow and then pass through the patient interface pad for the patient to breathe;

[0039] The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The elbow is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the elbow. The ratio between the outer interface diameter in contact with the outside air and the inner interface diameter not in contact with the outside air of at least a part of the exhaust holes is less than 2.45.

[0040] Furthermore, the tubular connector includes a first port connected to the ventilator tube and a second port connected to the elbow, and the tubular connector is detachably connected to the ventilator tube and the elbow through the first port and the second port.

[0041] Further, the inner diameter or outer diameter of the first port of the tubular connector is matched with the outer diameter and inner diameter of the second joint, so that the positive pressure gas can flow through the tubular connector in a sealed manner.

[0042] Furthermore, the first port is a port with a diameter of 22 mm or 15 mm adapted to the ventilator tube.

[0043] The present invention also provides a modular elbow frame assembly for a ventilator, configured to provide positive pressure breathing gas to the airway of a patient, characterized in that it includes:

[0044] A hose for connecting to a ventilator tube, an elbow connected between the hose and a patient interface cushion or frame and for delivering pressurized gas to the patient's airway, a quick release device for detachably connecting the elbow and the patient interface cushion or frame, and an external connection component for noise reduction;

[0045] The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for detachably connecting the patient interface pad or the frame;

[0046] The hose is detachably connected to the second connector of the elbow, and the second connector and the hose are connected to form an air flow channel to receive and transport the positive pressure airflow flowing out of the ventilator tube to the elbow and then pass through the patient interface pad for the patient to breathe;

[0047] The external connection component is provided with a noise reduction component, and the external connection component includes a main body detachably connected to the first joint of the elbow and an opening provided at the center of the main body for accommodating the noise reduction component, and buckles are provided on both sides of the main body of the opening and are fixed on the elbow by snapping;

[0048] The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The noise reduction component is fixed to the opening of the main body and is located between the vent of the elbow and the main body of the external connection component.

[0049] Furthermore, it is characterized in that the noise reduction component is noise reduction cotton or noise reduction net, the noise reduction cotton can be made of one of fibrous sound-absorbing material and foam sound-absorbing material, and the noise reduction net is made of one of fabric and nylon.

[0050] Furthermore, it is characterized in that the noise reduction component has at least one of the following characteristics:

[0051] Thickness up to 9mm;

[0052] The weight is at most 7g.

[0053] Furthermore, sound insulation cotton is arranged between the vent of the elbow and the external connecting component.

[0054] Furthermore, the noise reduction component is detachably connected to the opening of the main body by means of a buckle, a knob, or a clip.

[0055] Furthermore, the noise reduction component is fixedly connected to the opening of the main body by one of injection molding, ultrasonic lamination, heat pressing or adhesive bonding.

[0056] The present invention also provides a modular elbow frame assembly for a ventilator, configured to provide positive pressure breathing gas to the airway of a patient, characterized in that it comprises:

[0057] A hose for connecting to a ventilator tube, a frame for connecting to a patient interface such as a mask or a nasal mask, an elbow connected between the hose and the frame and used to deliver pressurized gas to the patient's airway, and a quick release device for detachably connecting the frame and the elbow;

[0058] The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for a detachable connection frame; the first joint and the second joint of the elbow are connected to form an air flow channel, so that the positive pressure airflow is sealed through the inlet and outlet ends of the elbow and provides ventilation assistance;

[0059] The quick release device is arranged on the first joint of the elbow and is formed integrally with the elbow, and the elbow is detachably connected to the frame via the quick release device;

[0060] The frame is provided with a vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the frame is provided with a plurality of exhaust holes. The frame is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the frame.

[0061] Furthermore, magnets for cooperating with each other are arranged on the receiving structure of the frame and the first joint of the elbow, and the frame and the elbow are connected by adsorption of the magnets.

[0062] The beneficial effects of a modular elbow frame assembly for a ventilator provided by the present invention are:

[0063] 1) By making the elbow detachable and modular, different elbows can be replaced for sleep apnea patients with different requirements or preferences for air pressure to improve the comfort of treatment. When the patient cannot obtain the optimal airflow pressure that meets the needs through the ventilator, the patient can adjust the airflow pressure by replacing the elbow with different apertures or numbers of exhaust holes. Different patients have different requirements for airflow pressure. The present invention allows patients to independently select an appropriate elbow to make continuous positive airway pressure ventilation treatment more comfortable. In addition, some special patients with respiratory insufficiency and respiratory failure can also choose a hole-free elbow for selection and replacement.

[0064] 2) The quick-detachable design makes the treatment more flexible and convenient for patients. The quick-detachable design of the elbow can quickly separate the elbow from the frame or patient interface pads such as nasal masks, full-face masks, nasal pillows or nasal pads. The increase in the releasable function between the treatment components makes it more convenient for patients to put on and take off the mask in daily life. When the patient needs to get up at night or leave the bed for a short time, there is no need to untie the headband to take off the patient interface pad and other complicated operations, thus avoiding the complicated wearing and adjustment process. The elbow and the frame or patient interface pads such as nasal masks, full-face masks, nasal pillows or nasal pads are releasably combined and have the function of being rotatable to each other, and the second joint of the elbow can be rotatable relative to the hose or tubular connector, which increases the patient's flexibility, facilitates multi-state wearing, avoids hose tangling, and improves the patient's convenience and comfort.

[0065] 3) Patients can choose whether to configure noise reduction components. Different patients have different choices for noise reduction design. The design of the detachable connecting elbow of the external connection component allows patients to choose whether to need noise reduction at will. For patients who do not like noise reduction materials, it can be disassembled for use. If the external connection components and noise reduction materials are damaged, they can be replaced separately without replacing the entire elbow. This method not only increases the service life of the elbow but also facilitates cleaning. Different silent materials can also be selected by patients. Patients can choose to use silent cotton sheets or silent meshes to choose different silent effects and usage experiences. The detachable design also solves the problem of patients' easy cleaning, sanitary dead corners and non-replaceability.

[0066] 4) The modular elbow provides different connection options for patients. The second connector of the elbow and the hose are releasably connected. Therefore, patients can choose to use the elbow to connect the hose and then connect it to the ventilator tube or use a tubular connector suitable for the corresponding ventilator tube port diameter to connect the elbow and the ventilator tube. The length of the hose and the size of the pipe may affect the patient's comfort in using the treatment component. Some patients may prefer a longer hose to provide themselves with a larger range of activities, while some patients may prefer the larger air flow provided by the ventilator tube. The use of tubular connectors allows patients to choose a more comfortable way during use, providing different options for patients with different preferences, and improving patient friendliness and multiple choices. This modular design not only reduces the discard rate of the overall components in terms of raw materials and reduces the carbon dioxide emissions in nature, but also provides a better way in disassembly and recycling, making carbon neutrality more ideal to a certain extent. The detachable modular design reduces the space occupied in logistics and transportation due to the same type of placement, and to a certain extent also achieves sustainable green design. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 An exploded schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention;

[0068] Figure 2 A schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention, wherein the ventilating port is located on the axis;

[0069] Figure 3 A three-dimensional schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention;

[0070] Figure 4 A schematic diagram of a use scenario of a modular elbow frame assembly for a ventilator provided by the present invention;

[0071] Figure 5 A schematic structural diagram of a quick release device for an elbow in a modular elbow frame assembly for a ventilator provided by the present invention;

[0072] Figure 6 A schematic structural diagram of the opening angle of the exhaust hole at the vent of the elbow in a modular elbow frame assembly for a ventilator provided by the present invention;

[0073] Figure 7 A schematic diagram of cleaning an elbow assembly in a modular elbow frame assembly for a ventilator provided by the present invention;

[0074] Figure 8 A schematic diagram of a frame and an elbow adsorption connection of a modular elbow frame assembly for a ventilator provided by the present invention;

[0075] Fig. 9 A schematic diagram of a hose and an elbow buckle connection of a modular elbow frame assembly for a ventilator provided by the present invention;

[0076] Fig.10 A schematic diagram of a hose and elbow adsorption connection of a modular elbow frame assembly for a ventilator provided by the present invention;

[0077] Fig.11 A schematic diagram of the structure of a modular elbow frame assembly for a ventilator provided by the invention with and without external connection components;

[0078] Fig.12 A front view of a modular elbow frame assembly for a ventilator provided by the present invention;

[0079] Fig.13 A schematic diagram of a three-dimensional structure of a modular elbow frame assembly for a ventilator provided by the present invention;

[0080] Fig.14 An exploded schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention;

[0081] Fig.15 for Fig.12 Middle AA section cutaway view;

[0082] Fig.16 Schematic diagrams of various embodiments of the elbow without a releasable clamp of a modular elbow frame assembly for a ventilator provided by the present invention;

[0083] Fig.17 A schematic structural diagram of an elbow of a modular elbow frame assembly for a ventilator provided by the present invention, in which a ventilating port is arranged at a first interface head;

[0084] Fig.18 A schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention, wherein a ventilating port is located on the frame;

[0085] Fig.19 A schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention, wherein a ventilation port is located on a patient interface pad;

[0086] Fig. 20 A schematic diagram of the structure of different vents of an elbow of a modular elbow frame assembly for a ventilator provided by the invention;

[0087] Fig.21 A schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention, wherein a ventilating port is located on an elbow;

[0088] Fig. 22 A schematic diagram of the connection between an elbow of a modular elbow frame assembly for a ventilator and a ventilator tube provided by the present invention;

[0089] Fig.23 A schematic diagram of the structure of a modular elbow frame assembly for a ventilator provided by the present invention, in which an elbow is connected to a ventilator tube through a tubular connector;

[0090] Fig.24 A schematic diagram of a modular elbow frame assembly for a ventilator provided by the present invention connected to different nasal masks;

[0091] Fig.25 A schematic diagram of the structure of the connection between the elbow and the nose mask in a modular elbow frame assembly for a ventilator provided by the present invention;

[0092] In the figure: 1-modular elbow frame assembly for ventilator, 2-elbow, 21-external connecting component, 22-quick release device, 221-hook, 23-first joint, 24-second joint, 25-annular positioning arm, 3-hose, 31-first end, 32-tubular connector, 321-first port, 322-second port, 33-second end, 4-vent, 41-noise reduction component, 412-noise reduction material thickness, 5-headband, 6-external connecting component opening, 61-buckle, 7-patient interface pad, 8-frame, 81-fixing port, 82-receiving structure. DETAILED DESCRIPTION

[0093] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0094] See also Figure 1-25 , a modular elbow frame assembly 1 for a ventilator provided by the present invention, wherein the modular elbow frame assembly 1 for a ventilator is configured to provide positive pressure breathing gas to the airway of a patient.

[0095] In the modular elbow frame assembly 1 in the following embodiments, when in use, the patient interface pad 7 is first fitted to the patient's face, and an air flow channel is formed between the patient interface pad 7 and the patient's respiratory tract, so that the positive pressure gas is delivered to the patient's respiratory tract in a closed manner. Then, the frame 8 can be selected to be worn and fixed on the surface of the patient interface pad 7, and then the headband 5 is fixed to the frame 8 and worn on the head so that the patient interface pad 7 is fixed to the patient's face and does not fall or move, or the frame 8 is selected not to be used and the patient interface pad 7 is directly fixed to the face through the headband 5, and then the elbow 2 is connected to the frame 8 connected to the patient interface pad 7 such as a mask or a nasal mask through the quick release device 22 on the elbow 2 (or the frame 8 is selected not to be used and the elbow 2 is connected to the patient interface pad 7 such as a mask or a nasal mask through the quick release device 22 on the elbow 2), and then the breathing hose 3 is connected to realize the complete wearing of the components, so that the pressurized air generated by the ventilator can flow through the elbow 2 through the hose 3 and then be delivered to the mask or nasal mask installed on the patient interface pad 7 to ensure that the positive pressure gas is smoothly delivered to the patient's respiratory tract for the patient to breathe. If necessary, the patient can choose to wear the tubular connector 32 according to his / her preference, and detachably connect the tubular connector 32 to the second connector 24 of the elbow 2. The second connector 24 and the tubular connector 32 are connected to form an airflow channel to receive and transport the positive pressure airflow flowing out of the ventilator tube 3 to the elbow 2 and then through the patient interface pad 7 for the patient to breathe. The patient can also choose to install an external connection component 21, a main body detachably connected to the first connector 23 of the elbow 2, and an opening provided at the center of the main body for accommodating the noise reduction component 41. Buckles 61 are provided on both sides of the opening of the main body and are fixed to the elbow 2. The noise reduction component 41 is fixed to the opening of the main body and is located between the ventilator 4 of the elbow 2 and the main body of the external connection component 21 (such as Figure 4 As shown), it effectively increases the patient's freedom of choice and meets the usage needs of different patients.

[0096] The elbow frame assembly 1 has multiple detachable locations, which can keep the elbow 2 and the patient interface pad 7 clean. The patient can clean the first joint 23 and the second joint 24 of the elbow 2. The existing detachable elbow 2 or fixed elbow 2 is difficult to clean due to its complex structure, and the cleanliness and hygiene of use are difficult to ensure. The elbow 2 of the present invention has a simple structure, which is convenient to use and allows the patient to disassemble it, thoroughly clean and disinfect it, avoiding the growth of dirt and bacteria at the connection part, ensuring the hygiene of the product, and reducing the risk of infection for patients (such as Figure 7 shown).

[0097] Embodiment 1:

[0098] like Figure 1-3 , Figure 5-6 , Figure 8-10 , Fig.24As shown, in this embodiment, the modular elbow frame assembly 1 for a ventilator comprises: a hose 3 for connecting to the ventilator, a frame 8, an elbow 2 connected between the hose 3 and the frame 8 and used to deliver pressurized gas to the patient's airway, and a quick release device 22 for detachably connecting the patient interface pad 7 and the elbow 2. The elbow 2 has a first joint 23 and a second joint 24, and the connection between the first joint 23 and the second joint 24 is curved. The first joint 23 is used to detachably connect to the frame 8.

[0099] In this embodiment, the overall design of the elbow 2 is light, and its arbitrary cross-sectional diameter is about 10-50mm, and the overall height is about 15-60mm. Due to the uniformity of the overall design of the elbow 2 and the height limitation, the situation that the overall weight of the elbow 2 is too heavy can be effectively avoided. Among them, the angle formed between the central axis of the first joint 23 and the central axis of the second joint 24 is about 10°-170°, so that the connection between the patient interface pad 7 and the hose 3 is smoother, and the occurrence of collapse of the gas transmission channel caused by unreasonable angle design of the elbow 2 and too soft material of the hose 3 is avoided. In addition, by designing the angle between the central axis of the first joint 23 and the central axis of the second joint 24 to be 10°-170°, the airflow direction can be correctly guided to avoid noise caused by the confusion of the airflow direction inside the pipeline. Among them, the elbow 2 is at least partially rigid, and the rest of the part can be deformed to achieve the purpose of buckling. The material of the elbow 2 can be made of one or more medical materials such as polycarbonate, polyethylene, polypropylene, acrylonitrile butadiene styrene, silicone, etc.

[0100] The elbow 2 has at least one vent 4, which is arranged on the second joint 24 of the elbow. The vent 4 is used to release the patient's exhaled gas to flow continuously to the external environment. The shape of the outer contour of the vent 4 includes but is not limited to a circle, a semicircle, and an ellipse. In addition, the vent 4 is arranged on the area where the first interface of the elbow 2 is vertically projected along the axis to the surface of the second joint 24 of the elbow 2. At this time, the exhaust position corresponds to the nasal airway, allowing the exhaled waste gas to be discharged in a straight line without the need for a tortuous diversion that causes the waste gas to be unable to be discharged, causing the patient to re-inhale the waste gas or the elbow to generate noise, thereby ensuring that the positive pressure gas is smoothly delivered to the patient's respiratory tract, avoiding airflow obstruction, and achieving the best user experience.

[0101] The vent 4 of the elbow 2 has a plurality of exhaust holes, through which the elbow 2 is connected to the external environment and the patient's exhaled gas is discharged from the elbow 2. The maximum surface area of ​​the plurality of exhaust holes is at most 5 square centimeters. The tidal volume is 8-10 mL / kg under normal circumstances, and the amount of gas exhaled and inhaled by an adult each time is usually about 500 mL. Based on the requirement of continuous positive airway pressure therapy for the patient's exhaled gas to be discharged to the outside air, the larger value of the sum of the inner surface area or the sum of the outer surface area of ​​the plurality of exhaust holes at the vent 4 is at most 5 square centimeters, and the optimal choice is 0.5-2.5 square centimeters, so as to ensure that the positive pressure gas is smoothly delivered to the patient's respiratory tract for the patient to breathe. As the direction of the gas changes from horizontal to vertical when the gas flows into the elbow 2 and reaches the second joint 24, the exhaust hole that is inclined downward at a certain angle, that is, the axis of the exhaust hole and the symmetry axis of the first joint 23 of the elbow 2 are conducive to the release of gas. The optimal exhaust hole is arranged to guide the exhaust gas flow at an angle α of 0-45° with the side wall, thereby effectively improving the exhaust effect of the patient's exhaled waste gas being discharged from the elbow 2 through the exhaust hole. Figure 6 As shown, a plurality of exhaust holes can be arranged on the elbow 2 in any path, and the angle α between the axis of the exhaust hole and the axis of symmetry of the first joint 23 of the elbow 2 is in the range of 0-45° to guide and discharge the air exhaled by the patient. The outer surface area of ​​the exhaust hole accounts for 3%-50% of the outer surface area of ​​the elbow 2, and the ratio between the outer interface diameter contacting with the outside air and the inner interface diameter not contacting with the outside air of at least a part of the plurality of exhaust holes is less than 2.45.

[0102] The frame 8 is configured to be connected to the patient interface pad 7 that seals the patient's airway. The frame 8 is at least partially rigid and includes a fixing port 81 connected to the elbow 2. It has a structure that combines with the patient interface pad 7 and is configured to position and detachably connect the patient interface pad 7 to the elbow 2. The fixing port 81 has a receiving structure 82 that cooperates with the quick release device 22 on the elbow. The direction of the fixing port 81 is arbitrary. To ensure the stability of the connection between the frame 8 and the elbow 2, sufficient contact surface should be provided without affecting the wearing experience. The length of the fixing port 81 can be between 0.5-25 mm; to form a close fit with the first joint 23 of the elbow 2, its circumference is approximately 10-120 mm, the diameter is approximately 3-40 mm, and the shape can be a regular arbitrary shape. The surface area of ​​the fixing port 81 occupies approximately 5%-50% of the surface area of ​​the frame 8. To ensure the effectiveness of the treatment, the proportion should be greater than 5% and less than 50%, otherwise it will cause airflow obstruction, too low air pressure or airflow dispersion, and the purpose of positive pressure therapy cannot be achieved. The surface of the fixing port 81 may contain silicone material to improve the air tightness of the assembly.

[0103] When the elbow 2 is connected to the patient interface pad 7 or the frame 8 through the quick release device 22, in order to avoid the elbow 2 being too large, the outer diameter of the first joint 23 of the elbow 2 should be less than or equal to 40 mm. Figure 5 As shown, the quick release device 22 includes a pair of protrusions respectively arranged on both sides of the first joint 23 and extending outward, the front end of the protrusion has a hook portion 221, the patient interface pad 7 or the frame 8 has a fixing portion for the hook portion 221 to be attached and covered, and an annular positioning stop arm 25 is provided on the outer edge surface of the first joint 23, and the fixing portion on the patient interface pad 7 or the frame 8 is embedded between the annular positioning stop arm 25 and the hook portion 221 of the protrusion to rotationally connect the patient interface pad 7 or the frame 8 and the first joint 23. The first joint 23 of the elbow 2 is integrally formed with and connected to the tab of the quick release device 22. When in use, the hook 221 at the top of the tab is attached to the patient interface pad 7 or the frame 8 and covers the fixed part of the patient interface pad 7 or the frame 8, and the fixed part of the patient interface pad 7 or the frame 8 is embedded between the annular positioning arm 25 on the first joint 23 and the hook 221, thereby connecting the patient interface pad 7 or the frame 8 to the elbow 2, and the elbow 2 and the patient interface pad 7 or the frame 8 can rotate relative to each other. In this embodiment, the quick release device 22 includes but is not limited to a disassembly structure for embedding the fixed portion of the patient interface pad 7 or the frame 8 between the hook 221 at the front end of the tab and the annular positioning arm 25 of the first elbow 2 by pinching the tab, thereby realizing a modular setting of a detachable connection. It is also possible to realize a quick-release connection method such as adsorption connection by providing a corresponding groove on the patient interface pad 7 or the frame 8, a snap-on structure for fixing the first joint 23 of the elbow 2 by slight deformation, and by respectively providing mutually cooperating magnets on the first joint 23 and the patient interface pad 7 or the frame 8.

[0104] like Figure 1 and Figure 3As shown, by adopting a detachable connection between the elbow 2 and the hose 3 and the patient interface pad 7 installed with a mask or a nasal mask, the elbow 2 can also be rotated 360° relative to the patient interface pad 7. The detachable design can realize the quick disassembly and reconnection between the elbow 2 and the patient interface pad 7 or the hose 3, which is convenient for patients to put on and take off, without cumbersome operations, saving time and energy, and providing a more convenient use experience. Especially for nighttime use, the design of quick disassembly of the elbow 2 and the patient interface pad 7 or the hose 3 greatly improves the convenience of wearing and disassembly of the patient. When the patient gets up at night, there is no need to worry about the difficulty of disassembly affecting the mood, thereby providing a smooth use experience for the patient. In addition, by detachably connecting the mask and the hose 3 to the elbow 2, costs can be effectively saved. When any component of the modular elbow frame assembly 1 for a ventilator is damaged, aged or needs to be replaced, the patient only needs to replace the damaged component without replacing the entire set of components, which not only saves the replacement cost, but also reduces the exhaust gas components, which is conducive to the effective use of resources and environmental protection. At the same time, it can also reduce maintenance and repair costs. For example, the elbow fixed to the hose by welding and other processes needs to be repaired as a whole system during maintenance, which is cumbersome. The rotation function of the elbow is conducive to the patient to adjust the angle of the mask without restriction to adapt to different sleeping positions and personal comfort preferences, and can allow the patient to better adjust the position of the mask to ensure that the patient interface pad 7 seals the respiratory tract. In addition, the hose that is knotted due to fixation may bring some risks, such as: treatment interruption, breathing obstruction, inconvenience in wearing, etc. These risks increase the operational complexity of the treatment system. Frequent occurrence may cause fatigue and resistance in patients, resulting in unwillingness to continue using the treatment device. The flexible and rotatable hose 3 can avoid the pulling and entanglement between the frame 8 and the hose 3 during the treatment process, which can reduce the knotting rate of the hose 3 and increase the service life of the hose 3.

[0105] The hose 3 includes a first end 31 close to the elbow 2, a second end 33 away from the elbow 2, and a spiral tube arranged between the first end 31 and the second end 33 and composed of a plurality of adjacent coils. The hose 3 is detachably connected to the elbow 2 through the first end 31 and delivers the air pressurized by the ventilator into the patient's airway. The elbow 2 and the first end 31 of the hose 3 are detachably connected by a buckle. The second end 33 is connected to the ventilator tube, and a rotating part is arranged on the second end 33 of the hose 3 to rotatably connect the hose 3 to the ventilator tube. The outer diameter of the first joint 23 of the elbow 2 is about 10-40mm, and the outer diameter of the second joint 24 is about 10-40mm. When the second joint 24 of the elbow 2 is connected to the hose 3, the hose 3 is usually light and thin in consideration of the comfort of the patient, but in order to ensure the ventilation effect, its inner diameter is greater than or equal to 10mm, and the outer diameter of the second joint 24 of the elbow 2 connected thereto is greater than or equal to 10mm. By detachably connecting the elbow 2 and the first end 31 of the hose 3 through a buckle, the elbow 2 and the hose 3 can be connected to form an airflow channel so that the pressurized air generated by the ventilator can flow through the hose 3 through the elbow 2 to ensure that the positive pressure gas is smoothly delivered to the patient's respiratory tract for the patient to breathe. The elbow 2 and the hose 3 can also be quickly disassembled and installed, making it easy to replace the hose 3 and the elbow 2 in time to meet the different usage requirements of customers. By using a rotating component to make the second end 33 of the hose 3 rotatably connected to the hose 3 of the ventilator, the patient's range of movement can be effectively increased, the hose 3 can be prevented from getting tangled, and the patient can have a better wearing experience, thereby increasing the service life of the hose 3. Fig.10 As shown, the elbow 2 and the first end 31 of the hose 3 can also be connected by magnet adsorption. The second connector 24 of the elbow 2 and the first connector 23 of the hose 3 are both provided with magnets that cooperate with each other. The magnet adsorption connection can ensure the stability of the connection between the elbow 2 and the hose 3 while improving the convenience of the detachable connection between the two.

[0106] In some other embodiments, the modular elbow frame assembly 1 can be connected to a patient interface pad such as a nasal pillow or a nasal mask in addition to being connected to a mask (e.g. Fig.24 As shown in the figure, by removing the frame 8 on which the mask, nasal mask or nasal pillow is installed and connecting it to the first joint 23 of the elbow 2, the flexibility and adaptability of the mask, nasal mask or nasal pillow that fits the patient's face can be effectively improved. At the same time, patients can replace different types of masks, nasal masks or nasal pillows according to their own convenience to meet different treatment needs or personal comfort preferences. The flexibility of the mask, nasal mask or nasal pillow allows patients to better customize and adjust the mask, nasal mask or nasal pillow, thereby improving the overall treatment effect and patient experience.

[0107] Embodiment 2:

[0108] like Figure 11-15As shown, this embodiment provides a modular elbow frame assembly 1 for a ventilator, which is configured to provide positive pressure breathing gas to the patient's airway. The elbow frame assembly 1 includes a hose 3, a frame 8, an elbow 2, an external connection component 21, and a quick release device 22. This embodiment provides a structural schematic diagram, an exploded diagram, and a cross-sectional view of the elbow frame assembly 1. Figure 11-15 In the embodiment of the present invention shown, the difference from the elbow frame assembly 1 in the first embodiment is that the elbow frame assembly 1 is provided with an external connecting component 21, a noise reduction component 41 is provided inside the external connecting component 21, the external connecting component 21 includes a main body detachably connected to the first joint 23 of the elbow 2 and an opening 6 arranged at the center of the main body for accommodating the noise reduction component 41, and retaining members are provided with buckles on both sides of the main body and are fixed to the elbow 2.

[0109] like Fig.14 As shown, the elbow 2 component may have at least one external connection component 21, which is configured to be connected to the elbow 2. The external connection component 21 is constructed to accommodate a noise reduction component 41. To ensure noise reduction while ensuring the overall lightness of the component, the noise reduction component 41 weighs at most 7 g and has a thickness of at most 9 mm. It can be set on the outer surface of the exhaust hole of the elbow 2 and is configured to allow the patient's exhaled gas to flow continuously and dispersedly to the outside to reduce noise and reduce the re-breathing of carbon dioxide exhaled by the patient.

[0110] The external connection component 21 has a holding member that can be connected to the outer surface of the elbow 2 and can be used together. The external connection component 21 includes a main body connected to the elbow 2 and a noise reduction component 41 attached to the main body. The external connection component 21 has at least one exhaust port, and the exhaust port can be arranged in a circular, arc-shaped, semicircular or other symmetrical or asymmetrical shape. At the same time, the outer surface of the elbow 2 also has at least one elbow 2 echoing component corresponding to the holding component on the external connection component 21, and the holding component and the echoing component can also have other suitable shapes for connection to place the noise reduction component 41 to exhaust gas. Among them, the external connection component 21 and the noise reduction component 41 can be fixedly connected by injection molding, ultrasonic pressing, hot pressing and other fixing methods; they can also be fixedly connected by adhesive bonding, such as glue, tape and other fixing methods; they can also be detachably connected by snaps, knobs, clips and other connecting methods, thereby providing patients with different options to meet the various usage needs of different patients.

[0111] In this embodiment, the noise reduction component 41 includes but is not limited to noise reduction cotton and noise reduction nets, wherein the noise reduction material can use fibrous sound-absorbing materials and foam sound-absorbing materials, and the noise reduction net can be made of fabric, nylon or other materials. The exhaust port opening 6 located in the middle part of the external connection component 21 opposite to the periphery has at least one opening 6 with or without a taper, and the noise reduction component 41 connected to the main body of the external connection component 21 has a central part and an outer edge part, and the noise reduction component 41 is placed at the opening 6 of the external component with a suitable size, and is attached to the outer surface of the vent 4 of the elbow 2 where gas flows out when connected to the elbow 2 to allow the gas exhaled by the patient to flow out to the outside in a dispersed manner, wherein the edge circumference of the noise reduction component 41 is greater than the circumference of the inner wall of the opening 6 of the external connection component 21, and the noise reduction component 41 and the external connection component 21 are fixed to each other and used in combination when in use, and the noise reduction component 41 is configured to be maintained between the vent 4 of the elbow 2 and the external component, and the area of ​​the opening 6 of the external connection component 21 is at most 5 square centimeters to accommodate a certain surface area of ​​the noise reduction component 41.

[0112] Different patients have different choices for noise reduction designs. The designs with noise reduction cotton and without noise reduction cotton correspond to two types of unmodifiable elbows 2, which have a certain obstruction to the patient's choice. However, by making the external connection component 21 detachable and attaching it to the elbow 2, the patient can make any choice, such as Fig.11 As shown, the patient can freely choose to install the noise reduction component 41 or not. For patients who do not like the noise reduction component 41, the component can be disassembled for use and replaced if damaged, which not only increases the service life but also facilitates cleaning. The silent material can also be replaced. The patient can choose to use the noise reduction component 41 with silent cotton sheets or silent meshes to select different silent effects and usage experiences. The detachable design also solves the problem of patients' easy cleaning with sanitary dead corners and non-replaceability.

[0113] In some other embodiments, the elbow 2 in the elbow frame assembly 1 can also be connected to the patient interface pad 7 or the frame 8 (such as Fig.16 As shown), it is realized by a circular spherical interface or an inward pinching fastener at the first interface and connected to the patient interface pad 7 or frame 8; when the elbow 2 is connected to the patient interface pad 7 or frame 8, in order to ensure smooth air flow transmission, the outer diameter of the first joint 23 of the elbow 2 should be greater than or equal to 10mm. The length of the quick release device 22 can be 0.5-35mm, because it has different forms, the smallest can be a small protrusion on the first joint 23 of the elbow 2, which is fixed by snapping with the patient interface pad 7 or frame 8, and the height of the protrusion is at least 0.5mm, and the largest can be an extension of a part of the elbow 2 (for example Fig.11The quick release device 22 shown in the figure should not exceed 35 mm in length, considering the comfort of use, the width of the thumb and the overall weight of the elbow 2. The different joining methods between the elbow 2 and the patient interface pad 7 or the frame 8 can effectively increase the diversity of the combination of the elbow 2 and the patient interface pad 7 or the frame 8, thereby increasing the patient's choice.

[0114] In some other embodiments, the modular elbow frame assembly 1 can be connected to a patient interface pad such as a nasal pillow or a nasal mask in addition to being connected to a mask (e.g. Fig.25 shown).

[0115] Embodiment three:

[0116] like Fig. 20 As shown, this embodiment provides a schematic diagram of the structure of different vents 4 of an elbow 2 of a modular elbow frame assembly 1 for a ventilator, configured to provide positive pressure breathing gas to the patient's airway, the elbow frame assembly 1 includes a hose 3, a frame 8, an elbow 2 and a quick release device 22. Fig. 20 In the embodiment of the present invention shown, the difference from the elbow frame assembly 1 in the first embodiment is that: a plurality of exhaust holes can be arranged on the elbow 2 according to any path, and exhaust holes of different numbers, sizes and shapes can be set at the vent 4 of the elbow 2, so as to meet the needs of different patients for airflow pressure. Through the detachable modular design of the elbow 2, different elbows 2 can be replaced for different types of patients to connect the hose 3. When the patient cannot obtain the optimal airflow pressure that meets the needs through the ventilator, the airflow pressure flowing into the patient's airway can be adjusted by replacing the elbow 2 with different apertures or numbers of exhaust holes. Different patients have different requirements for the pressure airflow flowing into the airway. Therefore, by designing an elbow 2 with different numbers, sizes and shapes of exhaust holes, the modular elbow 2 assembly can make the patient independently select the appropriate elbow 2 to make the continuous positive airway pressure ventilation treatment more comfortable. The detachable modular design elbow 2 improves the patient's selectivity, so that the patient can choose elbows 2 with different numbers of holes or aperture sizes according to the size of their own respiratory air resistance, which helps the patient to choose a suitable elbow 2 to cooperate with the continuous positive airway pressure ventilation treatment. (The more exhaust holes there are and the larger the aperture, the larger the total opening area of ​​the exhaust holes, and the lower the airflow pressure that the patient can accept.) In addition, exhaust holes of different shapes have different effects on the evacuation of air, thereby further meeting the needs of different patients for airflow pressure. The elbow 2 without exhaust holes is selected for use by some patients with respiratory insufficiency and respiratory failure. In addition, in order to make the patient feel comfortable when using various accessories, the weight of the elbow 2 shall not be higher than 20g. If the elbow 2 is higher than 20g, the patient will feel obvious weight pressure, which is obviously greater than the difference threshold. Therefore, in order to ensure the comfort of patients wearing respiratory accessories, the weight of the elbow 2 needs to be designed within 20g.

[0117] Embodiment 4:

[0118] like Figure 17-19 As shown, this embodiment provides a schematic diagram of the structure of a modular elbow frame assembly 1 for a ventilator having ventilating ports 4 at different positions, configured to provide positive pressure breathing gas to the patient's airway, the elbow frame assembly 1 includes a hose 3, a frame 8, an elbow 2, a quick release device 22, and an external connection component 21. This embodiment provides a schematic diagram of the structure of the elbow frame assembly 1. Figure 17-19 In the embodiment of the present invention shown in FIG. 1 , the difference from the elbow frame assembly 1 in the first embodiment is that the vent 4 can also be arranged on the frame 8 (eg Fig.18 As shown), the vent 4 can be an exhaust net using a noise reduction component 41, or it can be a number of exhaust holes that directly penetrate the frame 8. The vent 4 is configured to allow the waste gas exhaled by the patient to flow out from the inside of the frame 8 component to the outside, and the shape of its outer contour includes but is not limited to circular, semicircular, and elliptical. The exhaust holes are arranged on the frame 8 according to an arbitrary path. The mesh vent 4 can also be set at any position on the surface of the frame 8, and its overall outer contour shape is symmetrical or asymmetrical. The outer surface area of ​​the vent 4 accounts for approximately 3%-90% of the outer surface area of ​​the frame 8, so as to maintain uniform gas outflow and effectively avoid blockage. The exhaust holes on the frame 8 can be used in conjunction with an external external connection component 21, and an interface for fixing the external connection component 21 is set on the corresponding component, or the external connection component 21 itself can form a fixed structure to achieve the purpose of reducing noise. The vent 4 is made of one or more noise reduction components 41 including but not limited to polyvinyl chloride, polypropylene, polycarbonate, polytetrafluoroethylene or nylon, and the external connecting component 21 includes noise reduction cotton, and the material of the noise reduction cotton is made of one or more materials including but not limited to polyester, polypropylene, nylon, vinylon and natural fabric.

[0119] In another embodiment, the vent 4 may also be provided on the patient interface pad 7 (eg Fig.19 In another embodiment, the vent 4 can be arranged on the wall of the elbow 2 near the second joint 24, or can be arranged near the first joint 23 (as shown in FIG. Fig.17 As shown, since the position of the vent 4 on the elbow 2 in the existing market is relatively single, by setting the vent 4 close to the interface, different options are provided to patients, and patients can further choose elbows 2 with different numbers of holes or aperture sizes and the position of the vent 4 according to their own respiratory resistance, making continuous positive airway pressure therapy more comfortable and effectively improving the patient's usage experience.

[0120] Embodiment five:

[0121] like Figure 21-23As shown, this embodiment provides a schematic diagram of a modular elbow frame assembly 1 for a ventilator provided with a tubular connector 32, configured to provide positive pressure breathing gas to the patient's airway, the elbow frame assembly 1 includes a frame 8, an elbow 2, a quick release device 22 and a tubular connector 32, and this embodiment provides a schematic diagram of the structure of the elbow frame assembly 1, a cross-sectional view of the connection details ( Fig. 22 The elbow 2 is connected to the 15mm outer diameter tubular connector 32 and the elbow 2 is connected to the 22mm outer diameter tubular connector 32) and the connection effect is shown. Figure 21-23 In the embodiment of the present invention shown, the elbow 2 is the same as that in the third embodiment, and is different from the elbow frame assembly 1 in the first embodiment in that: the elbow frame assembly 1 is provided with a tubular connector 32 for connecting the elbow 2 with the ventilator tube, wherein the tubular connector 32 includes a second port 322 connected to the ventilator tube and a first port 321 connected to the elbow 2, and is constructed to form a releasable connection with the elbow 2 and the ventilator tube, and the connection method between the second joint 24 of the elbow 2 and the second port 322 of the tubular connector 32 includes but is not limited to a snap-fit ​​structure connection method in which a protrusion or groove at one end is fixed with a snap at the other end, a connection method in which the tubular connector 32 is detachably connected to the second joint 24 through a kneading mechanical structure, and a magnetic attraction connection in which positive and negative poles are respectively arranged on the tubular connector 32 and the elbow 2 and the magnetic connection of magnets that cooperate with each other.

[0122] like Fig.23 As shown, the second port 322 of the tubular connector 32 is configured to be connected to a conduit for transmitting gas such as a ventilator tube (heating tube, breathing tube); in addition, the cross-section of the front end of the tubular connector 32 has a pattern matching the second joint 24 of the elbow 2, and the overall length is approximately 5-60 mm; the material of the tubular connector 32 includes but is not limited to one or more materials such as polycarbonate, polyethylene, polypropylene, silicone, thermoplastic elastomer, etc.

[0123] like Fig. 22 As shown, the second port 322 connected to the ventilator tube in the tubular connector 32 is configured to fit at least a portion of the ventilator tube when connected to adapt to the port of the ventilator tube with a diameter of 22 mm or 15 mm. When the second joint 24 is connected to the tubular connector 32, since the tubular connector 32 is usually connected to thicker pipes such as heating pipes and breathing pipes, the inner diameter of the joint of such pipes is 15 or 22 mm, and the outer diameter is about 20-30 mm, the connecting part of the tubular connector 32 connected thereto is a uniform cylinder, so the outer diameter of the tubular connector 32 is about 15-22.5 mm, and the outer diameter of the second joint 24 of the elbow 2 connected thereto does not exceed 40 mm. The design of the tubular connector 32 is conducive to the patient's independent choice of connecting the hose 3 or not connecting the hose 3, increasing the patient's freedom of choice.

[0124] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0125] The beneficial effects of a modular elbow frame assembly for a ventilator provided by the present invention are:

[0126] 1) By making the elbow 2 detachable and modular, different elbows 2 can be replaced for sleep apnea patients with different requirements or preferences for air pressure to improve the comfort of treatment. When the patient cannot obtain the optimal airflow pressure that meets the requirements through the ventilator, the patient can adjust the airflow pressure by replacing the elbow 2 with different apertures or numbers of exhaust holes. Different patients have different requirements for airflow pressure. The present invention allows patients to independently select an appropriate elbow 2 to make continuous positive airway pressure ventilation treatment more comfortable. In addition, some special patients with respiratory insufficiency and respiratory failure can also choose an elbow 2 without holes for selection and replacement.

[0127] 2) The quick-detachable design makes the treatment more flexible and convenient for the patient. The quick-detachable design of the elbow 2 can quickly separate the elbow 2 from the frame 8 or the patient interface pad 7 such as a nasal mask, a full-face mask, a nasal pillow or a nasal pad. The increase in the releasable function between the treatment components makes it more convenient for the patient to put on and take off the mask in daily life. When the patient needs to get up at night or leave the bed for a short time, there is no need to perform a series of complicated operations such as unfastening the headband 5 to take off the patient interface pad 7, thereby avoiding the complicated wearing and adjustment process. The elbow 2 and the frame 8 or the patient interface pad 7 such as a nasal mask, a full-face mask or a nasal pad are releasably combined and have the function of being rotatable with each other, and the second connector 24 of the elbow 2 can be rotatable relative to the hose 3 or the tubular connector 32, thereby increasing the patient's flexibility, facilitating multi-state wearing, avoiding tangling of the hose 3, and improving the patient's convenience and comfort.

[0128] 3) Patients can choose whether to configure the noise reduction component 41. Different patients have different choices for noise reduction design. The design of the external connection component 21 detachably connected to the elbow 2 allows patients to arbitrarily choose whether to need noise reduction. For patients who do not like noise reduction materials, it can be disassembled for use. In addition, if the external connection component 21 and the noise reduction material are damaged, they can be replaced separately without replacing the entire elbow 2. This method not only increases the service life of the elbow 2, but also facilitates cleaning. Different silent materials can also be selected by patients. Patients can choose to use silent cotton sheets or silent meshes to select different silent effects and usage experiences. The detachable design also solves the problem of patients' easy cleaning, sanitary dead corners and non-replaceability.

[0129] 4) The modular elbow 2 provides different connection options for patients. The second connector 24 of the elbow 2 and the hose 3 are releasably connected. Therefore, the patient can choose to use the elbow 2 to connect the hose 3 and then connect it to the ventilator tube or use a tubular connector 32 suitable for the corresponding ventilator tube port diameter to connect the elbow 2 and the ventilator tube. The length of the hose 3 and the size of the pipe may affect the patient's comfort in using the treatment component. Some patients may prefer a longer hose 3 to provide themselves with a larger range of activities, while some patients may prefer the larger air flow provided by the ventilator tube. The use of the tubular connector 32 allows patients to choose a more comfortable way during use, providing different options for patients with different preferences, and improving patient friendliness and multiple choices. This modular design not only reduces the discard rate of the overall components in terms of raw materials and reduces the carbon dioxide emissions in nature, but also provides a better way in disassembly and recycling, making carbon neutrality more ideal to a certain extent. The detachable modular design reduces the space occupied in logistics and transportation due to the same type of placement, and to a certain extent also achieves sustainable green design.

Claims

1. A modular elbow frame assembly for a ventilator configured to provide positive pressure breathing gas to the airway of a patient, It is characterized in that include: a hose for connection to a ventilator tube, an elbow connected between the hose and a patient interface cushion and for delivering pressurized gas to the patient's airway, and a quick release device for detachably connecting the elbow and the patient interface cushion; The elbow has a first joint and a second joint, and the connection between the first joint and the second joint is curved; The quick release device is disposed on the first joint of the elbow and is integrally formed with the elbow, and the first joint is detachably connected to the patient interface pad through the quick release device; One end of the hose is detachably connected to the second connector of the elbow, and the other end is connected to the ventilator tube and is used to deliver pressurized air through the elbow to the patient's airway for the patient to breathe; The elbow has at least one vent, which is used to release the patient's exhaled gas to flow continuously to the external environment. The elbow has a plurality of exhaust holes at the vent, through which the elbow is connected to the external environment and the patient's exhaled gas is discharged out of the elbow. The maximum total surface area of ​​the plurality of exhaust holes is at most 5 square centimeters. The weight of the elbow is at most 20g; When the elbow is connected to the hose, a portion of the outer wall of the second joint fits against the inner wall of the hose.

2. The modular elbow frame assembly for a ventilator according to claim 1, It is characterized in that The quick release device includes a pair of protrusions respectively arranged on both sides of the first joint and extending outward, the front end of the protrusion has a hook portion, the patient interface pad has a fixing portion for the hook portion to be attached and covered, an annular positioning stop arm is arranged on the outer edge surface of the first joint, and the fixing portion on the patient interface pad is embedded between the annular positioning stop arm and the hook portion of the protrusion to rotationally connect the patient interface pad and the first joint.

3. The modular elbow frame assembly for a ventilator according to claim 1, It is characterized in that The hose includes a first end close to the elbow, a second end away from the elbow, and a spiral tube arranged between the first end and the second end and composed of a plurality of adjacent coils. The hose is detachably connected to the elbow through the first end and delivers pressurized air from the ventilator into the patient's airway.

4. The modular elbow frame assembly for a ventilator according to claim 3, It is characterized in that The elbow is detachably connected to the first end of the hose via a buckle.

5. The modular elbow frame assembly for a ventilator according to claim 3, It is characterized in that The elbow is detachably connected to the first end of the hose via a magnet.

6. The modular elbow frame assembly for a ventilator according to claim 3, It is characterized in that The second end is connected to the breathing machine tube, and a rotating component for rotationally connecting the hose to the breathing machine tube is arranged on the second end of the hose.

7. The modular elbow frame assembly for a ventilator according to claim 1, It is characterized in that The angle α formed by the axis of the exhaust hole and the axis of symmetry of the elbow first joint is in the range of 0-45° to guide and discharge the air exhaled by the patient.

8. A modular elbow frame assembly for a ventilator configured to provide positive pressure breathing gas to the airway of a patient, It is characterized in that include: A hose for connecting to a ventilator tube, a frame for connecting to a patient interface such as a mask or a nasal mask, an elbow connected between the hose and the frame and used to deliver pressurized gas to the patient's airway, and a quick release device for detachably connecting the frame and the elbow; The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for a detachable connection frame; The quick release device is arranged on the first joint of the elbow and is formed integrally with the elbow, and the elbow is detachably connected to the frame through the quick release device; One end of the hose is detachably connected to the second connector of the elbow, and the other end is connected to the ventilator and used to deliver pressurized air through the elbow to the patient's airway for the patient to breathe; The frame is provided with a fixing port connected to the elbow, and the fixing port is provided with a receiving structure matched with a quick release device on the elbow; The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The elbow is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the elbow. The surface area of ​​the plurality of exhaust holes accounts for 3%-50% of the surface area of ​​the elbow.

9. The connecting elbow frame assembly for a breathing machine according to claim 8, It is characterized in that The fixing port has at least one of the following characteristics: The circumference of the fixed opening ranges from 10 to 120 mm; The fixing port area occupies 5%-50% of the outer surface area of ​​the frame not facing the patient's face; The diameter range of the fixed port is 3-40 mm; The wall thickness of the fixing opening is in the range of 0.3-5 mm.

10. A modular elbow frame assembly for a ventilator configured to provide positive pressure breathing gas to the airway of a patient, It is characterized in that include: a tubular connector for connection to a ventilator tube, an elbow connected between the tubular connector and a patient interface cushion and for delivering pressurized gas to the patient's airway, and a quick release device for detachably connecting the elbow and the patient interface cushion; The elbow has a first joint and a second joint, and the connection between the first joint and the second joint is curved; The tubular connector is detachably connected to the second connector of the elbow, and the second connector and the tubular connector are connected to form an airflow channel to receive and transport the positive pressure airflow flowing out of the ventilator tube to the elbow and then pass through the patient interface pad for the patient to breathe; The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The elbow is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the elbow. The ratio between the outer interface diameter in contact with the outside air and the inner interface diameter not in contact with the outside air of at least a part of the exhaust holes is less than 2.

45.

11. The modular elbow frame assembly for a ventilator according to claim 10, It is characterized in that The tubular connector comprises a first port connected to the ventilator tube and a second port connected to the elbow. The tubular connector is detachably connected to the ventilator tube and the elbow via the first port and the second port.

12. The modular elbow frame assembly for a ventilator according to claim 10, It is characterized in that The inner diameter or outer diameter of the first port of the tubular connector is matched with the outer diameter and inner diameter of the second joint so that the positive pressure gas can flow through the tubular connector in a sealed manner.

13. The modular elbow frame assembly for a ventilator according to claim 11, It is characterized in that The first port is a 22 mm or 15 mm diameter port adapted to the ventilator tube.

14. A modular elbow frame assembly for a ventilator configured to provide positive pressure breathing gas to the airway of a patient, It is characterized in that include: A hose for connecting to a ventilator tube, an elbow connected between the hose and a patient interface cushion or frame and for delivering pressurized gas to the patient's airway, a quick release device for detachably connecting the elbow and the patient interface cushion or frame, and an external connection component for noise reduction; The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for detachably connecting the patient interface pad or the frame; The hose is detachably connected to the second connector of the elbow, and the second connector and the hose are connected to form an air flow channel to receive and transport the positive pressure airflow flowing out of the ventilator tube to the elbow and then pass through the patient interface pad for the patient to breathe; The external connection component is provided with a noise reduction component, and the external connection component includes a main body detachably connected to the first joint of the elbow and an opening provided at the center of the main body for accommodating the noise reduction component, and buckles are provided on both sides of the main body of the opening and are fixed on the elbow by snapping; The elbow is provided with at least one vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the elbow is provided with a plurality of exhaust holes. The noise reduction component is fixed to the opening of the main body and is located between the vent of the elbow and the main body of the external connection component.

15. The modular elbow frame assembly for a ventilator according to claim 14, It is characterized in that The noise reduction component is noise reduction cotton or noise reduction net. The noise reduction cotton can be made of one of fibrous sound-absorbing material and foam sound-absorbing material. The noise reduction net is made of one of fabric and nylon.

16. The modular elbow frame assembly for a ventilator according to claim 14, It is characterized in that The noise reduction component has at least one of the following characteristics: Thickness up to 9mm; The weight is at most 7g.

17. The modular elbow frame assembly for a ventilator according to claim 14, It is characterized in that Sound insulation cotton is also arranged between the vent of the elbow and the external connecting component.

18. The modular elbow frame assembly for a ventilator according to claim 14, It is characterized in that The noise reduction component is detachably connected to the opening of the main body by means of a buckle, a knob, or a clip.

19. The modular elbow frame assembly for a ventilator according to claim 14, It is characterized in that The noise reduction component is fixedly connected to the opening of the main body by injection molding, ultrasonic lamination, heat pressing or adhesive bonding.

20. A modular elbow frame assembly for a ventilator configured to provide positive pressure breathing gas to the airway of a patient, It is characterized in that include: A hose for connecting to a ventilator tube, a frame for connecting to a patient interface such as a mask or a nasal mask, an elbow connected between the hose and the frame and used to deliver pressurized gas to the patient's airway, and a quick release device for detachably connecting the frame and the elbow; The elbow has a first joint and a second joint, the connection between the first joint and the second joint is curved, and the first joint is used for a detachable connection frame; the first joint and the second joint of the elbow are connected to form an air flow channel, so that the positive pressure airflow is sealed through the inlet and outlet ends of the elbow and provides ventilation assistance; The quick release device is arranged on the first joint of the elbow and is formed integrally with the elbow, and the elbow is detachably connected to the frame via the quick release device; The frame is provided with a vent, which is used to release the gas exhaled by the patient to flow continuously to the external environment. The vent of the frame is provided with a plurality of exhaust holes. The frame is connected to the external environment through the exhaust holes and the gas exhaled by the patient is discharged out of the frame.

21. The modular elbow frame assembly for a ventilator according to claim 20, It is characterized in that The receiving structure of the frame and the first joint of the elbow are provided with magnets for cooperating with each other, and the frame and the elbow are connected by adsorption of the magnets.

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