A respiratory maintenance system providing humidified oxygen therapy

Abstract

The present invention discloses a respiratory maintenance system for providing humidified oxygen therapy. The system comprises an air-oxygen mixing module, a heating and humidifying module and a ventilator, wherein the outlet pipe of the air-oxygen mixing module is connected to the inlet pipe of the heating and humidifying module, the outlet pipe of the heating and humidifying module is connected to the inlet pipe of the ventilator, the ventilator comprises an outlet port for discharging the air-oxygen mixed gas, the outlet port is connected to a quick-detachable connector, and the quick-detachable connector is connected to an air supply pipe for supplying air to the patient. The present invention can solve the problem that the pipelines of the entire device are too complicated.

Description

Technical Field

[0001] The invention relates to the technical field of nasal high-flow humidified oxygen therapy equipment, and in particular to a respiratory maintenance system providing humidified oxygen therapy. Background Art

[0002] HFNC refers to a treatment method that continuously provides patients with high-flow (8-80L / min) inhaled gas with adjustable and relatively constant oxygen concentration (21%-100%), temperature (31-37°C) and humidity through high-flow nasal congestion. The treatment equipment mainly includes an air-oxygen mixing device, a humidification therapy device, a high-flow nasal congestion and a connected breathing tube.

[0003] At present, bubble humidification oxygen combined with nebulization inhalation humidification, continuous dripping of humidification liquid into the airway, artificial nasal humidification, and constant temperature humidification with a humidifier are commonly used in clinical practice to humidify the airway. In addition, the nebulization inhalation method has the problem of drug backflow if it is improperly operated or fixed, which affects the efficacy and increases the risk of infection.

[0004] The method of continuously dripping humidification liquid into the airway may easily cause patients to have adverse complications such as irritating cough, increased heart rate, stuffiness, decreased blood oxygen partial pressure, and increased blood pressure, which have a great impact on patients; the method of using artificial nasal humidification is expensive and needs to be replaced immediately after contamination, has a high cost of use, and is not suitable for people with thick sputum or carbon dioxide retention, and has a limited scope of use.

[0005] Although the use of a humidifier to humidify water at a constant temperature can overcome the above defects, due to its unreasonable existing structure, it cannot meet the patient's needs for inhaled gas flow rate, and cannot solve the problem of additional dead space and increased airway resistance caused by active humidification oxygen therapy devices to patient ventilation.

[0006] In addition, the above-mentioned methods of using suction are all open, which cannot avoid the problem of cross infection when establishing an artificial airway, and the safety guarantee is not enough. To solve the above problems, a Chinese patent entitled a structure of closed suction for high-flow humidified oxygen therapy of artificial airway with patent number 201821340948.1 is disclosed, which includes an oxygen supply device, a liquid supply device, a humidification device, a heating device and a breathing device.

[0007] Although the above technical solution can use an automatic pressure-regulating oxygen flow meter and a Venturi air-oxygen mixing valve to form an oxygen supply device and connect it to the humidification device in parallel with the liquid supply device to ensure the patient's inhaled gas flow rate, avoid the decrease in oxygen concentration and humidification effect due to insufficient gas flow rate and increase the risk of other complications in the patient, and solve the problem of additional dead space and increased airway resistance caused by the active humidification oxygen therapy device for patient ventilation; a closed suction tube is set on the breathing device to avoid the risk of cross infection caused by open suction, and the safety is high; temperature detection devices are also set at both ends of the heating device to obtain a more accurate gas temperature through comparison.

[0008] However, in the above technical solution, since an automatic pressure-regulating oxygen flow meter and a Venturi air-oxygen mixing valve are combined to form an oxygen supply device and connected in parallel with a liquid supply device to a humidification device, the pipelines of the entire equipment are too complicated, which is not conducive to the operation inspection of medical staff during use, nor is it conducive to creating a comfortable use experience for patients, thereby increasing patients' fear. Summary of the invention

[0009] In view of the deficiencies of the prior art, the present invention discloses a respiratory maintenance system providing humidified oxygen therapy, which can solve the problem that the pipelines of the entire device are too complicated.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A respiratory maintenance system for providing humidified oxygen therapy, comprising an air-oxygen mixing module, a heating and humidifying module and a ventilator, wherein an outlet pipe of the air-oxygen mixing module is connected to an inlet pipe of the heating and humidifying module, and an outlet pipe of the heating and humidifying module is connected to an inlet pipe of the ventilator, and the ventilator comprises an outlet port for discharging air-oxygen mixed gas, and the outlet port is connected to a quick-detachable connector, and the quick-detachable connector is connected to an air supply pipe for supplying air to a patient, and the quick-detachable connector comprises a first support ring, a second support ring, a spring and a third support ring, the top of the first support ring is fixedly connected to the air supply pipe, the bottom of the first support ring is rotatably connected to the top of the second support ring, the bottom of the second support ring is fixedly connected to the top of the spring, and the bottom of the spring is connected to the third support ring. Three support rings are fixedly connected, the first support ring includes a first protrusion, the discharge port has a first slide groove, the first protrusion has a first position located in the first slide groove and a second position located outside the first slide groove, the first support ring has a first positioning groove, the second support ring is connected with a first slider and a first linear cylinder, the first slider has a first position located in the first positioning groove and a second position located outside the first slide groove, the second support ring is connected with a first conductive sheet, the first conductive sheet is electrically connected to the first linear cylinder, the third support ring is connected with a second conductive sheet, and the breathing support system also includes a battery, the battery is electrically connected to the second conductive sheet, the first conductive sheet and the second conductive sheet have a first position in contact with each other and a second position separated from each other.

[0012] According to a preferred technical solution, the discharge port is arranged in an elliptical shape, and the first slide groove extending along the circumference of the discharge port is arranged on the circumferential side wall of the discharge port at the end of the major axis, and the first protrusion extending along the circumference of the discharge port is arranged on the inner circumferential side wall of the first support ring, and the radial dimension of the first protrusion along the circumference of the discharge port gradually narrows from one end to the other end.

[0013] According to a preferred technical solution, a second protrusion extending along the circumference of the discharge port is provided on the inner circumferential side wall of the second support ring, and a second slide groove extending along the circumference of the discharge port is provided on the outer circumferential side wall of the first support ring, and the second protrusion and the second slide groove are slidably connected.

[0014] A preferred technical solution is that the first positioning groove extending radially along the discharge port is provided on the outer peripheral side wall of the first support ring, the first linear cylinder extending radially along the discharge port is provided on the second support ring, the cylinder body of the first linear cylinder and the second support ring are fixedly connected, and the piston rod of the first linear cylinder and the first slider are fixedly connected.

[0015] According to a preferred technical solution, the first conductive sheet is arranged on the lower bottom surface of the second support ring, the first conductive sheet is arranged around the second support ring along the circumference of the discharge port, the second conductive sheet is arranged on the upper surface of the third support ring, and the second guide sheet is arranged around the third support ring along the circumference of the discharge port.

[0016] According to a preferred technical solution, the inner circumferential side wall of the air supply pipe and the outer circumferential side wall of the first support ring are sleeved, the inner diameter of the first support ring is larger than the outer diameter of the discharge port, and a sealing ring is fixedly connected to the lower bottom surface of the third support ring and is arranged around the third support ring along the circumference of the discharge port.

[0017] The present invention discloses a respiratory maintenance system providing humidified oxygen therapy, which has the following advantages:

[0018] By setting and installing a quick-disassembly connector composed of a first support ring, a second support ring, a spring and a third support ring, the air supply pipeline can be fixed on the top of the first support ring without disassembly, and the quick-disassembly connector is sleeved on the discharge port from top to bottom, and the third support ring and the bottom surface of the discharge port contact and squeeze the spring to unlock the relative rotation of the first support ring and the second support ring. The quick-disassembly connector and the discharge port are axially locked by the clamping connection between the first support ring and the discharge port, which can realize quick disassembly and assembly of the air supply pipeline and the ventilator, thereby maintaining the air supply while realizing the combination or replacement of different air supply pipelines and ventilators.

[0019] In the first position, the first protrusion follows the rotation of the first support ring and slides into the first slide groove. In the axial direction of the discharge port, the surface of the first protrusion abuts against the inner wall of the first slide groove, thereby locking the discharge port and the quick-disconnect connector. The quick-disconnect connector cannot be easily removed from the discharge port, thereby maintaining a stable connection between the ventilator and the air supply pipeline. In the second position, the first protrusion follows the rotation of the first support ring and disengages from the first slide groove, and the quick-disconnect connector can be pulled out of the discharge port.

[0020] In the first position, the first slider slides into the first slide groove under the pushing action of the first linear cylinder (the first slide groove is aligned with the first linear cylinder in the default initial position or after resetting), locking the relative rotation of the first support ring and the second support ring. In the second position, the second slider exits the first slide groove under the driving action of the first linear cylinder, and the first support ring can rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0022] Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 is a system block diagram of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of a ventilator in an embodiment of the present invention;

[0025] Figure 3 is a cross-sectional view of a quick disassembly connector according to an embodiment of the present invention;

[0026] Figure 4 is a top view of a quick-disassembly connector according to an embodiment of the present invention;

[0027] Figure 5 It is a top view of another position of the quick disassembly connector in the embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0030] like Figures 1 to 5 As shown, a respiratory maintenance system for providing humidified oxygen therapy described in an embodiment of the present invention includes an air-oxygen mixing module, a heating and humidification module and a ventilator 1, wherein the outlet pipe of the air-oxygen mixing module is connected to the inlet pipe of the heating and humidification module, and air and oxygen can be mixed in front of the turbine of the air-oxygen mixing module according to a preset oxygen concentration and then the air-oxygen mixed gas is heated and humidified, the outlet pipe of the heating and humidification module is connected to the inlet pipe of the ventilator 1, and the ventilator 1 includes a discharge port 10 for discharging the air-oxygen mixed gas, the discharge port 10 is connected to a quick-disassembly connector 2, and the quick-disassembly connector 2 is connected to an air supply pipe 9 for supplying air to the patient, thereby realizing quick disassembly and assembly of the air supply pipe 9 and the ventilator 1.

[0031] The air-oxygen mixed gas heated and humidified from the heating and humidification module can be provided to the patient through the ventilator 1. It is easy to understand that other accessories such as blood oxygen monitoring equipment and transcutaneous / end-tidal CO2 monitoring equipment can also be used to monitor the patient in real time and communicate with the control module with a PLC controller through Bluetooth or other means. A display module can be installed in the control module to display the flow rate in real time for medical staff to observe. The control module can also be connected to the cloud platform through the network for online operation and control.

[0032] The quick-disassembly connector 2 includes a first support ring 21, a second support ring 22, a spring 24 and a third support ring 23. The top of the first support ring 21 is fixedly connected to the air supply pipe 9, the bottom of the first support ring 21 is rotatably connected to the top of the second support ring 22, the bottom of the second support ring 22 is fixedly connected to the top of the spring 24, and the bottom of the spring 24 is fixedly connected to the third support ring 23.

[0033] By setting up a quick-disassembly connector 2 composed of a first support ring 21, a second support ring 22, a spring 24 and a third support ring 23, the air supply pipe 9 can be fixed on the top of the first support ring 21 without disassembly, and the quick-disassembly connector 2 is sleeved on the discharge port 10 from top to bottom. The third support ring 23 and the bottom surface of the discharge port 10 contact and squeeze the spring 24 to unlock the relative rotation of the first support ring 21 and the second support ring 22. The quick-disassembly connector 2 and the discharge port 10 are axially locked by the clamping connection between the first support ring 21 and the discharge port 10, so that the air supply pipe 9 and the ventilator 1 can be quickly disassembled and assembled, thereby maintaining the air supply while realizing the combination or replacement of different air supply pipes 9 and ventilators 1.

[0034] In order to achieve locking of the discharge port 10 and the quick-disconnect connector 2 in the axial direction of the discharge port 10, the first support ring 21 includes a first protrusion 211, the discharge port 10 has a first slide groove 101, the first protrusion 211 has a first position located inside the first slide groove 101 and a second position located outside the first slide groove 101, and the first support ring 21 has a first positioning groove 210.

[0035] The discharge port 10 is set to an elliptical shape, and the first slide groove 101 extending along the circumference of the discharge port 10 is set on the circumferential side wall of the discharge port 10 at the end of the major axis, and the first protrusion 211 extending along the circumference of the discharge port 10 is set on the inner circumferential side wall of the first support ring 21. Along the circumference of the discharge port 10, the radial dimension of the first protrusion 211 in the radial direction of the discharge port 10 gradually narrows from one end to the other end.

[0036] In the first position, the first protrusion 211 follows the rotation of the first support ring 21 and slides into the first slide groove 101. In the axial direction of the discharge port 10, the surface of the first protrusion 211 abuts against the inner wall of the first slide groove 101, thereby locking the discharge port 10 and the quick-disconnect connector 2. The quick-disconnect connector 2 cannot be easily removed from the discharge port 10, thereby maintaining a stable connection between the ventilator 1 and the air supply pipe 9. In the second position, the first protrusion 211 follows the rotation of the first support ring 21 and disengages from the first slide groove 101, and the quick-disconnect connector 2 can be pulled out of the discharge port 10.

[0037] In the relative rotation process of the first support ring 21 and the second support ring 22, a second protrusion 221 extending along the circumference of the discharge port 10 is provided on the inner peripheral side wall of the second support ring 22, and a second slide groove 212 extending along the circumference of the discharge port 10 is provided on the outer peripheral side wall of the first support ring 21. The second protrusion 221 and the second slide groove 212 are slidably connected to realize the relative rotation of the first support ring 21 and the second support ring 22.

[0038] In order to lock the relative rotation of the first support ring 21 and the second support ring 22 in the circumferential direction of the discharge port 10, the second support ring 22 is connected to a first slider 3 and a first linear cylinder 4, and the first slider 3 has a first position located in the first positioning groove 210 and a second position located outside the first slide groove 101.

[0039] The first positioning groove 210 extending radially along the discharge port 10 is provided on the outer peripheral side wall of the first support ring 21, and the first linear cylinder 4 extending radially along the discharge port 10 is provided on the second support ring 22, the cylinder body of the first linear cylinder 4 and the second support ring 22 are fixedly connected, and the piston rod of the first linear cylinder 4 and the first slider 3 are fixedly connected.

[0040] In the first position, the first slider 3 slides into the first slide groove 101 under the pushing action of the first linear cylinder 4 (the first slide groove 101 is aligned with the first linear cylinder 4 in the default initial position or after resetting), locking the relative rotation of the first support ring 21 and the second support ring 22. In the second position, the second slider exits the first slide groove 101 under the driving action of the first linear cylinder 4, and the second support ring can rotate.

[0041] In order to control the extension and retraction of the first linear cylinder 4, the second support ring 22 is connected to a first conductive sheet 222, which is electrically connected to the first linear cylinder 4. The third support ring 23 is connected to a second conductive sheet 231. The breathing support system also includes a battery 5, which is electrically connected to the second conductive sheet 231. The first conductive sheet 222 and the second conductive sheet 231 have a first position in contact with each other and a second position in which they are separated from each other.

[0042] The first conductive sheet 222 is arranged on the lower bottom surface of the second support ring 22, and the first conductive sheet is arranged around the second support ring 22 along the circumference of the discharge port 10. The second conductive sheet 231 is arranged on the upper surface of the third support ring 23, and the second guide sheet is arranged around the third support ring 23 along the circumference of the discharge port 10.

[0043] The quick disassembly connector 2 needs to be pressed down during the sleeve connection of the discharge port 10. The first conductive sheet 222 and the second conductive sheet 231 are in contact with each other. The first linear cylinder 4 is powered on and contracts to drive the first slider 3 to exit the first positioning groove 210. The PLC controller can also be connected to complete the control of the first linear cylinder 4. The first conductive sheet 222 and the second conductive sheet 231 are in contact with each other, and the spring 24 is pressed. The first protrusion 211 slides into the first slide groove 101 and keeps the spring 24 pressed. On the contrary, the first protrusion 211 slides out of the first slide groove 101, the spring 24 releases the first conductive sheet 222 and the second conductive sheet 231 are separated from each other, and the first linear cylinder 4 is reset.

[0044] The reset process can also be completed by the PLC controller, which is connected to the battery 5 to maintain continuous power supply. The contact and separation of the first conductive sheet 222 and the second conductive sheet 231 will generate an electrical signal and send it to the PLC controller, and the PLC controller will make corresponding control actions.

[0045] The inner peripheral side wall of the air supply pipe 9 is sleeved with the outer peripheral side wall of the first support ring 21, the inner diameter of the first support ring 21 is larger than the outer diameter of the discharge port 10, and a sealing ring 232 arranged around the third support ring 23 along the circumference of the discharge port 10 is fixedly connected to the lower bottom surface of the third support ring 23. The sealing ring 232 is pressed against the discharge port 10 under the pressure of the spring 24, which can maintain the seal with the discharge port 10 on the one hand, and can maintain relative stillness in the circumferential direction through friction on the other hand.

[0046] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0047] Moreover, the terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A respiratory maintenance system for providing humidified oxygen therapy, comprising an air-oxygen mixing module, a heating and humidifying module and a ventilator, wherein the air outlet pipe of the air-oxygen mixing module is connected to the air inlet pipe of the heating and humidifying module, and the air outlet pipe of the heating and humidifying module is connected to the air inlet pipe of the ventilator, characterized in that: The ventilator includes a discharge port for discharging air-oxygen mixed gas, the discharge port is connected to a quick-detachable connector, the quick-detachable connector is connected to an air supply pipeline for supplying air to a patient, the quick-detachable connector includes a first support ring, a second support ring, a spring and a third support ring, the top of the first support ring is fixedly connected to the air supply pipeline, the bottom of the first support ring is rotatably connected to the top of the second support ring, the bottom of the second support ring is fixedly connected to the top of the spring, the bottom of the spring is fixedly connected to the third support ring, the first support ring includes a first protrusion, the discharge port has a first slide groove, the first protrusion has a first position located in the first slide groove and a second position located outside the first slide groove, the first support ring has a first positioning groove, and the second support ring is connected to a first slider and a first linear cylinder , the first slider has a first position located in the first positioning groove and a second position located outside the first positioning groove, the second support ring is connected to a first conductive sheet, the first conductive sheet is electrically connected to the first linear cylinder, and the third support ring is connected to a second conductive sheet; the breathing maintenance system also includes a battery, the battery is electrically connected to the second conductive sheet, the first conductive sheet and the second conductive sheet have a first position of contacting each other and a second position of being separated from each other; the discharge port is arranged in an elliptical shape, the first slide groove extending along the circumference of the discharge port is arranged on the circumferential side wall of the discharge port at the end of the major axis, the first protrusion extending along the circumference of the discharge port is arranged on the inner circumferential side wall of the first support ring, and the radial dimension of the first protrusion along the circumference of the discharge port gradually narrows from one end to the other end; A second protrusion extending along the circumference of the discharge port is provided on the inner circumferential side wall of the second support ring, and a second slide groove extending along the circumference of the discharge port is provided on the outer circumferential side wall of the first support ring, and the second protrusion and the second slide groove are slidably connected; the first positioning groove extending along the radial direction of the discharge port is provided on the outer circumferential side wall of the first support ring, and the first linear cylinder extending along the radial direction of the discharge port is provided on the second support ring, the cylinder body of the first linear cylinder and the second support ring are fixedly connected, and the piston rod of the first linear cylinder and the first slider are fixedly connected.

2. The respiratory support system for providing humidified oxygen therapy according to claim 1, characterized in that: The first conductive sheet is arranged on the lower bottom surface of the second support ring, and the first conductive sheet is arranged around the second support ring along the circumference of the discharge port. The second conductive sheet is arranged on the upper surface of the third support ring, and the second conductive sheet is arranged around the third support ring along the circumference of the discharge port.

3. The respiratory support system for providing humidified oxygen therapy according to claim 1, characterized in that: The inner circumferential side wall of the air supply pipe and the outer circumferential side wall of the first support ring are sleeved, the inner diameter of the first support ring is larger than the outer diameter of the discharge port, and a sealing ring arranged around the third support ring along the circumference of the discharge port is fixedly connected to the lower bottom surface of the third support ring.

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