A breathing aid during radiotherapy

Abstract

The invention discloses an assisted breathing device during radiotherapy, and relates to the technical field of assisted breathing. The device comprises an oxygen delivery system, a liquid discharge system, a control system and a housing, a driving motor is installed in the housing, a cam group is installed on the output shaft of the driving motor, a breathing cylinder and a sliding cylinder A are installed on one side of the cam group, an adsorption cylinder and a sliding cylinder B are installed on the other side of the cam group, a processing cylinder is installed between the breathing cylinder and the adsorption cylinder, multiple groups of levers and flexible membranes are installed in the processing cylinder, an oxygen mask and an oxygen delivery system are connected to the processing cylinder, two groups of delivery wheels are installed above the cam group, the two groups of delivery wheels are wrapped with filter membranes, a storage cylinder is installed below the filter membrane, and the adsorption cylinder is connected to the liquid discharge system through a pipeline; the breathing cylinder, the sliding cylinder A, the processing cylinder and the oxygen delivery system cooperate to realize the oxygen delivery of the oxygen mask, the lever adjusts the flow rate of oxygen, and the adsorption cylinder, the sliding cylinder B and the oxygen mask cooperate to realize the liquid extraction in the user's mouth.

Description

Technical Field

[0001] The invention relates to the technical field of assisted breathing, in particular to an assisted breathing device during radiotherapy. Background Art

[0002] The main role of assisted breathing during radiotherapy is to ensure the accuracy and safety of treatment, reduce side effects, and improve treatment outcomes.

[0003] During radiotherapy, a ventilator is generally used to assist breathing. A ventilator is a medical device that is mainly used to help or replace the patient's breathing, especially when the patient's ability to breathe independently is impaired or lost. It delivers oxygen or mixed gases to the patient's lungs to maintain the patient's vital signs. The working principle of the ventilator is to generate a certain gas flow and deliver oxygen or mixed gases into the patient's lungs to achieve gas exchange, that is, to deliver oxygen to the blood and expel carbon dioxide from the body. This process simulates the natural breathing process of the human body, but because it is a mechanical device, the flow, pressure and concentration of the gas can be precisely controlled to meet the specific needs of the patient.

[0004] The existing assisted breathing devices have the following main problems: (1) it is inconvenient for the patient to expectorate when breathing, and (2) it is impossible to regulate the temperature of oxygen. Summary of the invention

[0005] The object of the present invention is to provide a breathing assist device during radiotherapy to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a radiotherapy auxiliary breathing device, comprising an oxygen delivery system, a drainage system and a control system, comprising a shell, a driving motor is installed in the shell, a cam group is installed on the output shaft of the driving motor, a breathing cylinder and a sliding cylinder A are installed on one side of the cam group, an adsorption cylinder and a sliding cylinder B are installed on the other side of the cam group, a processing cylinder is installed between the breathing cylinder and the adsorption cylinder, a plurality of groups of levers and flexible membranes are installed in the processing cylinder, an oxygen mask and an oxygen delivery system are connected to the processing cylinder, two groups of delivery wheels are installed above the cam group, the two groups of delivery wheels are wrapped with filter membranes, a storage cylinder is installed below the filter membrane, and the adsorption cylinder is connected to the drainage system through a pipeline;

[0007] The breathing cylinder, sliding cylinder A, processing cylinder and oxygen delivery system cooperate to realize oxygen delivery of the oxygen mask, the lever adjusts the flow rate of oxygen, the adsorption cylinder, sliding cylinder B and oxygen mask cooperate to realize liquid extraction in the user's mouth, and the filter membrane filters the extracted oral fluid.

[0008] The shell is hollow inside, and two groups of partitions are arranged in sequence in the shell. The output shaft of the drive motor passes through the lower partition and is rotatably mounted on the upper partition. The drive motor is mounted on the shell.

[0009] The cam group consists of an upper cam and a lower cam, and the upper cam and the lower cam are both installed on the output shaft of the driving motor between the two groups of partitions. The upper cam is arranged on the upper side of the lower cam, and a plurality of protrusions are arranged on the outer sides of the upper cam and the lower cam. The protrusions on the upper cam and the protrusions on the lower cam are staggered, and the protrusions on the upper cam and the protrusions on the lower cam are respectively opposite to the sliding cylinder A and the sliding cylinder B.

[0010] The breathing cylinder and the adsorption cylinder are both installed on the upper partition plate, the breathing cylinder and the adsorption cylinder are hollow inside, one end of the sliding cylinder A and the sliding cylinder B are respectively located in the breathing cylinder and the adsorption cylinder, the other ends of the sliding cylinder A and the sliding cylinder B are respectively in contact with the upper cam and the lower cam, the breathing cylinder and the adsorption cylinder form a sliding seal with the sliding cylinder A and the sliding cylinder B respectively, the breathing cylinder and the sliding cylinder A are connected by a spring, and the adsorption cylinder and the sliding cylinder B are connected by a spring;

[0011] The breathing cylinder and the sliding cylinder A form an oxygen delivery unit, and the adsorption cylinder and the sliding cylinder B form a sputum discharge unit. The oxygen delivery unit and the sputum discharge unit are both provided with multiple groups, and the oxygen delivery unit is located on the upper side of the sputum discharge unit.

[0012] The treatment cylinder is installed on the partitions on both sides, and the treatment cylinder is provided with multiple groups. The interior of the treatment cylinder is hollow, and the shifting rod is provided with multiple groups in the treatment cylinder. One end of the multiple groups of shifting rods is rotatably installed on the inner wall of the treatment cylinder, and the other end of the multiple groups of shifting rods is connected to the inner wall of the treatment cylinder through springs. The multiple groups of shifting rods are arranged along the circumference of the inner wall of the treatment cylinder;

[0013] The flexible membrane is arranged between two adjacent levers, the flexible membrane is made of flexible material, and is provided with a plurality of folds. The lever near one end of the spring is provided with an electromagnet A, and an electromagnet B is provided on the outside of the processing cylinder. The electromagnet A is opposite to the electromagnet B, and the electromagnet A and the electromagnet B are both electrically connected to the control system. A conveying chamber is formed between the multiple groups of levers and the multiple groups of flexible membranes, and the longitudinal section of the conveying chamber is circular.

[0014] A flow sensor is installed in the delivery chamber, and the flow sensor is arranged on the lever. Displacement sensors are installed on the two opposite sets of levers. The flow sensor is used to monitor the oxygen flow in the delivery chamber. And uploaded to the control system, the displacement sensor monitors the diameter of the conveying chamber And uploaded to the control system, the cross-sectional area of ​​the conveying chamber is , the flow rate of oxygen through the delivery chamber is ;

[0015] The control system calculates the cross-sectional area of ​​the conveying chamber according to the calculation formula , the specific calculation formula is as follows:

[0016] ;

[0017] The control system calculates the flow rate of oxygen passing through the delivery chamber according to the calculation formula. , the specific calculation formula is as follows:

[0018] ;

[0019] The control system drives multiple groups of levers to adjust the diameter of the conveying chamber through the cooperation of electromagnet A and electromagnet B. and the oxygen flow rate in the delivery chamber Cooperate to achieve the flow rate of oxygen adjust.

[0020] The two groups of conveying wheels are rotatably mounted on the housing above the two groups of partitions. The two groups of conveying wheels have electric roller structures inside. The two groups of conveying wheels are respectively located on both sides of the housing. Both groups of conveying wheels have built-in encoders.

[0021] The two ends of the filter membrane are respectively wound on two groups of conveying wheels. A liquid guide cylinder is installed above the filter membrane between the two groups of conveying wheels. The storage cylinder is located below the filter membrane between the two groups of conveying wheels. The liquid guide cylinder and the storage cylinder are concentrically arranged.

[0022] The liquid-conducting cylinder is mounted on the shell, and the storage cylinder is mounted on the upper partition plate. A plurality of sliding shafts are arranged on the opposite side of the liquid-conducting cylinder and the storage cylinder, and circular plates are slidably mounted on the sliding shafts on both sides. A shielding film and a first spring are connected between the circular plate on the upper side and the liquid-conducting cylinder, and another group of shielding films and another group of first springs are connected between the circular plate on the lower side and the storage cylinder. The shielding film is provided with a plurality of folds, and the shielding film is made of a flexible material. A sealing ring is arranged on the opposite side of the circular plates on both sides.

[0023] The shielding film is located outside the first spring, the first spring is sleeved on the sliding shaft, and two ends of the first spring are electrically connected to the control system.

[0024] When the filter membranes facing the liquid guide tube and the storage tube have been used for a specified time, the control system energizes the first springs on both sides, and each turn of the first spring generates a magnetic field that attracts each other. The magnetic field compresses the first spring, shortens the first spring as a whole, and the upper first spring pulls the upper circular plate and the sealing ring to move upward, and the lower first spring pulls the lower circular plate and the sealing ring to move downward. At this time, the circular plates and the sealing rings on both sides are not in contact with the filter membrane. After that, the control system controls the conveying wheel on the left to rotate a certain angle to release one end of the filter membrane, and the conveying wheel on the right to rotate a certain angle to tighten the other end of the filter membrane. The filter membrane moves toward one end as a whole, so that the new filter membrane enters the position facing the liquid guide tube and the storage tube, and the filter membrane is replaced. When the first springs on both sides are not energized, the first springs on both sides press the sealing rings on the circular plates on both sides against the filter membrane, and the shielding membrane between the upper circular plate and the liquid guide tube and the shielding membrane between the lower circular plate and the storage tube are stretched and retracted accordingly, and the liquid guide tube and the storage tube are sealed by the shielding membrane and the sealing ring on both sides to ensure that gas and liquid will not leak.

[0025] The respirator is provided with an air inlet and an air outlet, wherein the air inlet is located on one side of the air outlet, the air inlet passes through the shell through a pipeline and is connected to the oxygen delivery system, the air outlet is connected to the treatment cylinder through a pipeline, and the treatment cylinder passes through the shell through a pipeline and is connected to the oxygen mask;

[0026] The pipelines connecting the air inlet, the air outlet and the treatment cylinder are all installed with electromagnetic valves and pressure sensors, and the electromagnetic valves and pressure sensors are electrically connected to the control system.

[0027] The adsorption cylinder is provided with a liquid inlet and a liquid outlet, the liquid inlet is located on one side of the liquid outlet, the liquid inlet is connected to the storage cylinder through a pipeline passing through two groups of partitions, the liquid guide cylinder is connected to the oxygen mask through a pipeline, and the liquid outlet is connected to the drainage system through a pipeline passing through the shell;

[0028] Another set of solenoid valves and pressure sensors are installed in the pipelines connected to the liquid inlet and the liquid outlet.

[0029] A heating wire and a cooling plate are arranged on the inner wall of the treatment tube, and the heating wire and the cooling plate are located on one side of the lever. A temperature sensor is installed on the inner wall of the treatment tube on one side of the heating wire and the cooling plate, and the heating wire is located on one side of the cooling plate. Two semiconductors and a metal plate of different materials are arranged on the cooling plate, and the two semiconductors of different materials are electrically connected to the control system through wires. The heating wire and the temperature sensor are both electrically connected to the control system. A control panel is installed on the shell, and the control system is arranged in the control panel. The temperature sensor is used for monitoring the temperature of oxygen. The semiconductors and the metal plate of two different materials are the cooling ends of the Peltier effect. The control system cools down the oxygen through the cooling end and cooperates with the heating wire to control the temperature of the oxygen.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. Extract and filter the user's sputum without removing the oxygen mask. Based on the data of the encoder inside the drive motor, the control system controls the solenoid valve in the pipeline between the adsorption cylinder and the drainage system to open. The protrusion on the lower cam pushes the sliding cylinder B to move inside the adsorption cylinder and compresses the spring. The air and liquid in the chamber between the sliding cylinder B and the adsorption cylinder are discharged into the drainage system through the liquid outlet and the pipeline, realizing the discharge of gas and sputum for further processing.

[0032] 2. Oxygen temperature adjustment to cope with different usage scenarios. The temperature sensor is used to monitor the temperature of oxygen. The semiconductor and metal plate made of two different materials are the cooling end of the Peltier effect. The control system cools the oxygen through the cooling end and cooperates with the heating wire to control the oxygen temperature.

[0033] 3. Oxygen flow rate adjustment can meet the needs of different users. The control system realizes the diameter of the delivery chamber through the cooperation of electromagnet A and electromagnet B. The user can adjust the required oxygen flow rate through the control panel and with the oxygen flow rate Cooperate with the control system according to the calculation formula , inversely deduce that the transport chamber corresponds to the required The control system then adjusts the size of the conveying chamber to the required The size of the current passing through the electromagnet A and the electromagnet B is adjusted, thereby changing the attraction between the electromagnet A and the electromagnet B, so that one end of the multiple groups of levers can be rotated to the required angle to adjust the oxygen flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 yes Figure 1 A three-dimensional image without the oxygen mask and part of the outer shell;

[0036] Figure 3 yes Figure 2 Schematic diagram of the structure after removing the liquid guide tube and the filter membrane;

[0037] Figure 4 yes Figure 3 Schematic diagram of the structure after removing two sets of conveying wheels and the upper partition;

[0038] Figure 5 yes Figure 4 A partial enlarged view of the middle A area;

[0039] Figure 6 yes Figure 4 A partial enlarged view of the middle B area;

[0040] Figure 7 yes Figure 4 A top view of

[0041] Figure 8 yes Figure 7 Cross-sectional view at the mid-CC position;

[0042] Fig. 9 yes Figure 7 Cross-sectional view at the middle DD position;

[0043] Fig.10 It is a schematic diagram of the installation structure of the liquid guide cylinder, the storage cylinder, the filter membrane, two sets of conveying wheels, and the first springs and circular ring plates on both sides;

[0044] Fig.11 yes Fig.10 A partial enlarged view of the middle E area;

[0045] Fig.12 It is a schematic diagram of the internal structure of the treatment cylinder.

[0046] In the figure: 1. control panel; 11. shell; 12. conveying wheel; 13. filter membrane; 14. oxygen mask; 15. liquid guide cylinder; 151. storage cylinder; 152. circular ring plate; 153. shielding membrane; 154. first spring; 2. driving motor; 21. breathing cylinder; 211. sliding cylinder A; 212. air inlet; 213. air outlet; 22. processing cylinder; 221. lever; 222. flexible membrane; 223. electromagnet A; 224. electromagnet B; 225. heating wire; 226. cooling plate; 23. upper cam; 231. lower cam; 24. adsorption cylinder; 241. sliding cylinder B; 242. liquid inlet; 243. liquid outlet. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Example: Figure 1-Figure 12As shown, the present invention provides a technical solution of a radiotherapy auxiliary breathing device, including an oxygen delivery system (not shown in the figure), a drainage system (not shown in the figure), a control system and a shell 11, a driving motor 2 is installed in the shell 11, a cam group is installed on the output shaft of the driving motor 2, a breathing cylinder 21 and a sliding cylinder A211 are installed on one side of the cam group, an adsorption cylinder 24 and a sliding cylinder B241 are installed on the other side of the cam group, a processing cylinder 22 is installed between the breathing cylinder 21 and the adsorption cylinder 24, a plurality of groups of levers 221 and flexible membranes 222 are installed in the processing cylinder 22, and the processing cylinder 22 is connected to the oxygen mask 14 and the oxygen delivery system. The system comprises two groups of conveying wheels 12 installed above the cam group, the two groups of conveying wheels 12 are wrapped with filter membranes 13, a storage cylinder 151 is installed below the filter membrane 13, and the adsorption cylinder 24 is connected to the drainage system through a pipeline; the breathing cylinder 21, the sliding cylinder A211, the processing cylinder 22 and the oxygen delivery system cooperate to realize the oxygen delivery of the oxygen mask 14, the lever 221 adjusts the flow rate of oxygen, the adsorption cylinder 24, the sliding cylinder B241 and the oxygen mask 14 cooperate to realize the liquid extraction in the user's mouth, the filter membrane 13 filters the extracted oral liquid, and a control panel 1 is installed on the shell 11, and the control system is arranged in the control panel 1.

[0049] The interior of the shell 11 is hollow, and two groups of partitions are arranged in sequence in the shell 11. The output shaft of the drive motor 2 passes through the lower partition and is rotatably installed on the upper partition, and the drive motor 2 is installed on the shell 11; the cam group is composed of an upper cam 23 and a lower cam 231, and the upper cam 23 and the lower cam 231 are both installed on the output shaft of the drive motor 2 between the two groups of partitions. The upper cam 23 is arranged on the upper side of the lower cam 231, and a plurality of protrusions are arranged on the outer sides of the upper cam 23 and the lower cam 231. The protrusions on the upper cam 23 and the protrusions on the lower cam 231 are staggered, and the protrusions on the upper cam 23 and the protrusions on the lower cam 231 are respectively opposite to the sliding cylinder A211 and the sliding cylinder B241.

[0050] The breathing cylinder 21 and the adsorption cylinder 24 are both installed on the upper partition. The interior of the breathing cylinder 21 and the adsorption cylinder 24 are hollow. One end of the sliding cylinder A211 and the sliding cylinder B241 are respectively located in the breathing cylinder 21 and the adsorption cylinder 24, and the other ends of the sliding cylinder A211 and the sliding cylinder B241 are respectively in contact with the upper cam 23 and the lower cam 231. The breathing cylinder 21 and the adsorption cylinder 24 form sliding seals with the sliding cylinder A211 and the sliding cylinder B241 respectively. The breathing cylinder 21 and the sliding cylinder A211 are connected by a spring, and the adsorption cylinder 24 and the sliding cylinder B241 are connected by a spring; the breathing cylinder 21 and the sliding cylinder A211 form an oxygen delivery unit, and the adsorption cylinder 24 and the sliding cylinder B241 form a sputum discharge unit. The oxygen delivery unit and the sputum discharge unit are both provided with multiple groups, and the oxygen delivery unit is located on the upper side of the sputum discharge unit.

[0051] The processing cylinder 22 is installed on the partitions on both sides. The processing cylinder 22 is provided with multiple groups. The interior of the processing cylinder 22 is hollow. There are multiple groups of levers 221 in the processing cylinder 22. One end of the multiple levers 221 is rotatably installed on the inner wall of the processing cylinder 22. The other end of the multiple levers 221 is connected to the inner wall of the processing cylinder 22 through a spring. The multiple levers 221 are arranged circumferentially along the inner wall of the processing cylinder 22; a flexible membrane 222 is arranged between two adjacent levers 221. The flexible membrane 222 is made of a flexible material. A plurality of folds are arranged on the flexible membrane 222. An electromagnet A223 is arranged on the lever 221 near one end of the spring. An electromagnet B224 is arranged on the outside of the processing cylinder 22. The electromagnet A223 is directly opposite to the electromagnet B22 4. Electromagnet A 223 and electromagnet B 224 are both electrically connected to the control system. A conveying chamber is formed between the multiple groups of levers 221 and the multiple groups of flexible membranes 222. The longitudinal section of the conveying chamber is circular. A heating wire 225 and a cooling plate 226 are arranged on the inner wall of the treatment cylinder 22. The heating wire 225 and the cooling plate 226 are located on one side of the lever 221. A temperature sensor is installed on the inner wall of the treatment cylinder 22 on one side of the heating wire 225 and the cooling plate 226. The heating wire 225 is located on one side of the cooling plate 226. Two semiconductors and a metal plate of different materials are arranged on the cooling plate 226. The two semiconductors of different materials are electrically connected to the control system through wires. The heating wire 225 and the temperature sensor are both electrically connected to the control system. The temperature sensor is used for oxygen temperature monitoring. The two semiconductors and the metal plate of different materials are the cooling ends of the Peltier effect. The control system cools the oxygen through the cooling end and cooperates with the heating wire 225 to control the oxygen temperature.

[0052] A flow sensor is installed in the delivery chamber. The flow sensor is set on the lever 221. Displacement sensors are installed on the two opposite sets of levers 221. The flow sensor is used to monitor the oxygen flow in the delivery chamber. And uploaded to the control system, the displacement sensor monitors the diameter of the conveying chamber And uploaded to the control system, the cross-sectional area of ​​the conveying chamber is , the flow rate of oxygen through the delivery chamber is ;

[0053] The control system calculates the cross-sectional area of ​​the conveying chamber according to the calculation formula , the specific calculation formula is as follows:

[0054] ;

[0055] The control system calculates the flow rate of oxygen passing through the delivery chamber according to the calculation formula. , the specific calculation formula is as follows:

[0056] ;

[0057] The control system drives multiple groups of levers 221 to adjust the diameter of the conveying chamber through the cooperation of electromagnet A223 and electromagnet B224. and the oxygen flow rate in the delivery chamber Cooperate to achieve the flow rate of oxygen adjust.

[0058] The control system realizes the conveying chamber diameter through the cooperation of electromagnet A223 and electromagnet B224 The user adjusts the required oxygen flow rate through the control panel 1 and with the oxygen flow rate Cooperate with the control system according to the calculation formula , inversely deduce that the transport chamber corresponds to the required The control system then adjusts the size of the conveying chamber to the required The size of the current passed into the electromagnet A223 and the electromagnet B224 is adjusted, thereby changing the attraction between the electromagnet A223 and the electromagnet B224, so that one end of the multiple groups of levers 221 can be rotated to the required angle. The specific working process is as follows: the control system energizes the electromagnet A223 and the electromagnet B224, so that the electromagnet A223 and the electromagnet B224 attract each other. Under the action of the attraction, the electromagnet A223 drives one end of the lever 221 to rotate a certain angle, and the flexible membrane 222 between the two adjacent groups of levers 221 shrinks and stretches accordingly, and the flexible membrane 222 blocks the gap between the two adjacent groups of levers 221 to ensure the normal delivery of oxygen.

[0059] Two groups of conveying wheels 12 are rotatably mounted on the housing 11 above the two groups of partitions. The two groups of conveying wheels 12 have an electric roller structure inside. The two groups of conveying wheels 12 are respectively located on both sides of the housing 11. Both groups of conveying wheels 12 are equipped with encoders. The two ends of the filter membrane 13 are respectively wound on the two groups of conveying wheels 12. A liquid guide cylinder 15 is installed above the filter membrane 13 between the two groups of conveying wheels 12. The storage cylinder 151 is located below the filter membrane 13 between the two groups of conveying wheels 12. The liquid guide cylinder 15 and the storage cylinder 151 are concentrically arranged. The liquid guide cylinder 15 is installed on the housing 11, and the storage cylinder 151 is installed on the upper partition. The liquid guide cylinder 15 and the storage cylinder 151 are arranged concentrically. A plurality of sliding shafts are arranged on one side, and circular plates 152 are slidably installed on the sliding shafts on both sides. A shielding film 153 and a first spring 154 are connected between the upper circular plate 152 and the liquid guiding tube 15, and another group of shielding films 153 and another group of first springs 154 are connected between the lower circular plate 152 and the storage tube 151. The shielding film 153 is provided with a plurality of folds, and the shielding film 153 is made of a flexible material. Sealing rings are arranged on the opposite sides of the circular plates 152 on both sides; the shielding film 153 is located on the outside of the first spring 154, and the first spring 154 is sleeved on the sliding shaft, and both ends of the first spring 154 are electrically connected to the control system.

[0060] The breathing cylinder 21 is provided with an air inlet 212 and an air outlet 213, the air inlet 212 is located on one side of the air outlet 213, the air inlet 212 passes through the shell 11 through a pipeline to connect with the oxygen delivery system, the air outlet 213 is connected to the treatment cylinder 22 through a pipeline, and the treatment cylinder 22 passes through the shell 11 through a pipeline to connect with the oxygen mask 14; the pipelines connecting the air inlet 212, the air outlet 213 and the treatment cylinder 22 are all installed with solenoid valves and pressure sensors, and the solenoid valves and the pressure sensors are electrically connected to the control system; the adsorption cylinder 24 is provided with a liquid inlet 242 and a liquid outlet 243, the liquid inlet 242 is located on one side of the liquid outlet 243, the liquid inlet 242 passes through two groups of partitions through a pipeline to connect with the storage cylinder 151, the liquid guide cylinder 15 is connected to the oxygen mask 14 through a pipeline, and the liquid outlet 243 passes through the shell 11 through a pipeline to connect with the drainage system; another group of solenoid valves and pressure sensors are installed in the pipelines connecting the liquid inlet 242 and the liquid outlet 243.

[0061] Working principle: Press the start button on the control panel 1, the device starts, the user wears the oxygen mask 14, the control system controls the drive motor 2 to drive the upper cam 23 and the lower cam 231 to rotate, when the protrusion on the upper cam 23 approaches the sliding cylinder A211, the protrusion on the upper cam 23 pushes the sliding cylinder A211 to move inside the breathing cylinder 21 and compresses the spring, the chamber between the breathing cylinder 21 and the sliding cylinder A211 becomes smaller, the control system simultaneously opens the solenoid valve in the pipeline between the air outlet 213 and the processing cylinder 22, and the oxygen in the chamber between the breathing cylinder 21 and the sliding cylinder A211 passes through the air outlet 2 13 and the pipeline are transported to the treatment cylinder 22. After the oxygen enters the delivery chamber in the treatment cylinder 22, the control system drives one end of the multiple groups of levers 221 to rotate a certain angle through the cooperation of the electromagnet A223 and the electromagnet B224, so that the diameter of the delivery chamber changes, and the flow rate of the oxygen is adjusted. After that, the oxygen passes through the delivery chamber and is transported to the oxygen mask 14 through the pipeline, and the oxygen is provided to the user through the oxygen mask 14; after the oxygen is delivered to the user, the control system closes the solenoid valve in the pipeline between the breathing cylinder 21 and the treatment cylinder 22 according to the set time, and the set time is set in advance by the user through the control panel 1;

[0062] When the driving motor 2 drives the upper cam 23 to rotate and move away from the sliding cylinder A211, the spring between the sliding cylinder A211 and the breathing cylinder 21 is released, and the spring pushes the sliding cylinder A211 to move away from the breathing cylinder 21, and the chamber between the breathing cylinder 21 and the sliding cylinder A211 becomes larger. At this time, the control system opens the solenoid valve in the pipeline between the air inlet 212 and the oxygen delivery system, and oxygen enters the chamber between the breathing cylinder 21 and the sliding cylinder A211 from the oxygen delivery system, the pipeline and the air inlet 212, thereby realizing the quantitative extraction of oxygen; by continuously driving the upper cam 23 to rotate by the driving motor 2, the protrusion on the upper cam 23 continuously pushes the sliding cylinder A211 to move, and the sliding cylinder A211 moves in the opposite direction under the action of the spring, thereby continuously realizing the extraction and delivery of oxygen.

[0063] When the driving motor 2 drives the lower cam 231 to rotate and approach the sliding cylinder B241, the control system controls the electromagnetic valve in the pipeline between the adsorption cylinder 24 and the drainage system to open according to the data of the encoder inside the driving motor 2, and the protrusion on the lower cam 231 pushes the sliding cylinder B241 to move inside the adsorption cylinder 24 and compress the spring, and the air and liquid in the chamber between the sliding cylinder B241 and the adsorption cylinder 24 are discharged into the drainage system through the liquid outlet 243 and the pipeline, so as to discharge the gas and sputum for further treatment;

[0064] When the driving motor 2 drives the lower cam 231 to rotate and move away from the sliding cylinder B241, the control system first closes the solenoid valve in the pipeline between the adsorption cylinder 24 and the drainage system according to the data of the encoder in the driving motor 2, and then opens the solenoid valve in the connecting pipeline between the liquid inlet 242 and the storage cylinder 151. After that, the spring between the sliding cylinder B241 and the adsorption cylinder 24 is released, and the chamber between the sliding cylinder B241 and the adsorption cylinder 24 becomes larger. The gas and sputum exhaled by the user are sucked into the liquid guide cylinder 15 through the pipeline, and the gas and sputum pass through the liquid guide cylinder 15 below the filter membrane 13, the gas and sputum are filtered by the filter membrane 13 and enter the storage cylinder 151, the gas and sputum in the storage cylinder 151 enter the chamber between the sliding cylinder B241 and the adsorption cylinder 24 through the pipeline from the liquid inlet 242, so as to realize the extraction of sputum and air, and then, the driving motor 2 pushes the sliding cylinder B241 to move toward the inside of the adsorption cylinder 24 through the lower cam 231, so as to realize the transportation of gas and sputum to the drainage system, and the driving motor 2 continuously drives the lower cam 231 to rotate, so as to realize the extraction and discharge of gas and sputum.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A radiotherapy breathing aid device, comprising an oxygen delivery system, a drainage system and a control system, characterized in that: The invention comprises a housing (11), wherein a driving motor (2) is installed in the housing (11), a cam group is installed on the output shaft of the driving motor (2), a breathing cylinder (21) and a sliding cylinder A (211) are installed on one side of the cam group, an adsorption cylinder (24) and a sliding cylinder B (241) are installed on the other side of the cam group, a processing cylinder (22) is installed between the breathing cylinder (21) and the adsorption cylinder (24), a plurality of groups of levers (221) and flexible membranes (222) are installed in the processing cylinder (22), the processing cylinder (22) is connected to an oxygen mask (14) and an oxygen delivery system, two groups of delivery wheels (12) are installed above the cam group, the two groups of delivery wheels (12) are wound with filter membranes (13), a storage cylinder (151) is installed below the filter membrane (13), and the adsorption cylinder (24) is connected to a drainage system through a pipeline; The breathing cylinder (21), the sliding cylinder A (211), the processing cylinder (22) and the oxygen delivery system cooperate to realize oxygen delivery of the oxygen mask (14); the lever (221) adjusts the flow rate of oxygen; the adsorption cylinder (24), the sliding cylinder B (241) and the oxygen mask (14) cooperate to realize liquid extraction in the user's oral cavity; and the filter membrane (13) filters the extracted oral fluid; The shell (11) is hollow inside, and two groups of partitions are arranged in sequence inside the shell (11). The output shaft of the drive motor (2) passes through the lower partition and is rotatably mounted on the upper partition. The drive motor (2) is mounted on the shell (11); The cam group is composed of an upper cam (23) and a lower cam (231). The upper cam (23) and the lower cam (231) are both mounted on the output shaft of the driving motor (2) between the two groups of partitions. The upper cam (23) is arranged on the upper side of the lower cam (231). A plurality of protrusions are arranged on the outer sides of the upper cam (23) and the lower cam (231). The protrusions on the upper cam (23) and the protrusions on the lower cam (231) are arranged in a staggered manner. The protrusions on the upper cam (23) and the protrusions on the lower cam (231) are respectively opposite to the sliding cylinder A (211) and the sliding cylinder B (241). The processing cylinder (22) is mounted on the partitions on both sides. The processing cylinder (22) is provided with a plurality of groups. The interior of the processing cylinder (22) is hollow. A plurality of groups of the levers (221) are provided in the processing cylinder (22). One end of the plurality of groups of the levers (221) is rotatably mounted on the inner wall of the processing cylinder (22). The other ends of the plurality of groups of the levers (221) are connected to the inner wall of the processing cylinder (22) via springs. The plurality of groups of the levers (221) are arranged circumferentially along the inner wall of the processing cylinder (22); The flexible membrane (222) is arranged between two adjacent levers (221), the flexible membrane (222) is made of a flexible material, and a plurality of folds are arranged on the flexible membrane (222). The lever (221) close to one end of the spring is provided with an electromagnet A (223), and an electromagnet B (224) is arranged outside the processing cylinder (22), the electromagnet A (223) is directly opposite to the electromagnet B (224), and the electromagnet A (223) and the electromagnet B (224) are both electrically connected to a control system. A conveying chamber is formed between the plurality of groups of levers (221) and the plurality of groups of flexible membranes (222), and the longitudinal section of the conveying chamber is circular.

2. A radiotherapy breathing aid according to claim 1, characterized in that: The breathing cylinder (21) and the adsorption cylinder (24) are both mounted on the upper baffle plate. The breathing cylinder (21) and the adsorption cylinder (24) are hollow inside. One end of the sliding cylinder A (211) and the sliding cylinder B (241) are respectively located inside the breathing cylinder (21) and the adsorption cylinder (24). The other ends of the sliding cylinder A (211) and the sliding cylinder B (241) are respectively in contact with the upper cam (23) and the lower cam (231). The breathing cylinder (21) and the adsorption cylinder (24) form sliding seals with the sliding cylinder A (211) and the sliding cylinder B (241). The breathing cylinder (21) and the sliding cylinder A (211) are connected by a spring, and the adsorption cylinder (24) and the sliding cylinder B (241) are connected by a spring. The breathing cylinder (21) and the sliding cylinder A (211) form an oxygen delivery unit, and the adsorption cylinder (24) and the sliding cylinder B (241) form a sputum discharge unit. The oxygen delivery unit and the sputum discharge unit are both provided in multiple groups, and the oxygen delivery unit is located on the upper side of the sputum discharge unit.

3. A radiotherapy breathing aid according to claim 2, characterized in that: A flow sensor is installed in the delivery chamber. The flow sensor is arranged on a lever (221). Displacement sensors are installed on two opposite sets of levers (221). The flow sensor is used to monitor the oxygen flow in the delivery chamber. And uploaded to the control system, the displacement sensor monitors the diameter of the conveying chamber And uploaded to the control system, the cross-sectional area of ​​the conveying chamber is , the flow rate of oxygen passing through the delivery chamber is ; The control system calculates the cross-sectional area of ​​the conveying chamber according to the calculation formula , the specific calculation formula is as follows: ； The control system calculates the flow rate of oxygen passing through the delivery chamber according to the calculation formula. , the specific calculation formula is as follows: ； The control system drives multiple groups of levers (221) to adjust the diameter of the conveying chamber through the cooperation of electromagnet A (223) and electromagnet B (224). and the oxygen flow rate in the delivery chamber Cooperate to achieve the flow rate of oxygen adjust.

4. A radiotherapy breathing aid according to claim 3, characterized in that: The two groups of conveying wheels (12) are rotatably mounted on the housing (11) above the two groups of partitions, the two groups of conveying wheels (12) have an electric roller structure inside, the two groups of conveying wheels (12) are respectively located on both sides of the housing (11), and both groups of conveying wheels (12) have built-in encoders; The two ends of the filter membrane (13) are respectively wound around two sets of conveying wheels (12); a liquid guide cylinder (15) is installed above the filter membrane (13) between the two sets of conveying wheels (12); the storage cylinder (151) is located below the filter membrane (13) between the two sets of conveying wheels (12); the liquid guide cylinder (15) and the storage cylinder (151) are concentrically arranged.

5. The radiotherapy breathing assist device according to claim 4, characterized in that: The liquid guiding cylinder (15) is mounted on the housing (11), and the storage cylinder (151) is mounted on the upper partition plate. A plurality of sliding shafts are arranged on the opposite sides of the liquid guiding cylinder (15) and the storage cylinder (151). Circular plates (152) are slidably mounted on the sliding shafts on both sides. A shielding film (153) and a first spring (154) are connected between the circular plate (152) on the upper side and the liquid guiding cylinder (15). Another group of shielding films (153) and another group of first springs (154) are connected between the circular plate (152) on the lower side and the storage cylinder (151). The shielding film (153) is provided with a plurality of folds. The shielding film (153) is made of a flexible material. Sealing rings are arranged on the opposite sides of the circular plates (152) on both sides. The shielding film (153) is located outside the first spring (154), the first spring (154) is sleeved on the sliding shaft, and both ends of the first spring (154) are electrically connected to the control system.

6. A radiotherapy breathing aid according to claim 5, characterized in that: The breathing tube (21) is provided with an air inlet (212) and an air outlet (213), wherein the air inlet (212) is located on one side of the air outlet (213), the air inlet (212) passes through the housing (11) via a pipeline and is connected to the oxygen delivery system, the air outlet (213) is connected to the treatment tube (22) via a pipeline, and the treatment tube (22) passes through the housing (11) via a pipeline and is connected to the oxygen mask (14); A solenoid valve and a pressure sensor are installed in the pipes connecting the air inlet (212), the air outlet (213) and the processing cylinder (22), and the solenoid valve and the pressure sensor are electrically connected to the control system.

7. The radiotherapy breathing assist device according to claim 6, characterized in that: The adsorption cylinder (24) is provided with a liquid inlet (242) and a liquid outlet (243), the liquid inlet (242) is located on one side of the liquid outlet (243), the liquid inlet (242) is connected to the storage cylinder (151) via a pipeline passing through two groups of partitions, the liquid guide cylinder (15) is connected to the oxygen mask (14) via a pipeline, and the liquid outlet (243) is connected to the liquid discharge system via a pipeline passing through the shell (11); Another set of solenoid valves and pressure sensors are installed in the pipelines connected to the liquid inlet (242) and the liquid outlet (243).

8. The radiotherapy breathing assist device according to claim 7, characterized in that: A heating wire (225) and a cooling plate (226) are arranged on the inner wall of the processing cylinder (22), and the heating wire (225) and the cooling plate (226) are located on one side of the lever (221). A temperature sensor is installed on the inner wall of the processing cylinder (22) on the side of the heating wire (225) and the cooling plate (226). The heating wire (225) is located on one side of the cooling plate (226). Two semiconductors made of different materials and a metal plate are arranged on the cooling plate (226). The two semiconductors made of different materials are electrically connected to a control system via a wire. The heating wire (225) and the temperature sensor are both electrically connected to the control system. A control panel (1) is installed on the shell (11), and the control system is arranged in the control panel.

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