A high pressure oxygen device

Abstract

The present invention relates to the technical field of medical equipment, and discloses a hyperbaric oxygen device, including a hyperbaric oxygen chamber body and a patient transfer mechanism, a door frame is provided with a threshold, a pressurized oxygen supply assembly includes an oxygen supply valve, a circulation valve and a replacement valve connected to the hyperbaric oxygen chamber body through a flange with a one-way flow, the oxygen supply valve is connected to the circulation valve, and the replacement valve is connected to the atmosphere, and the patient transfer mechanism includes a bed body and an obstacle crossing unit, the obstacle crossing unit includes an obstacle crossing arm rotatably arranged on the bed body, the obstacle crossing arm includes a first support leg and a second support leg, and a track is rotatably arranged between the first support leg and the second support leg. Through the design of the obstacle crossing arm and the rotating track on the bed, the threshold can be easily crossed, friction can be reduced, the pressure on the bed can be reduced, the transfer safety can be guaranteed, the burden on medical staff can be reduced, the stability and safety of the patient can be ensured, and the risk of transportation can be avoided. The valve provided on the hyperbaric oxygen chamber is used for replacement, the loss of high-purity oxygen can be reduced, and the accumulation of waste gas can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a high-pressure oxygen device. Background Art

[0002] Hyperbaric oxygen therapy is a method of breathing pure oxygen or high-concentration oxygen in a high-pressure (exceeding normal pressure) environment to treat hypoxic diseases and related diseases. In a high-pressure environment, a large amount of oxygen is inhaled into the human body and dissolved into the blood. The amount of dissolved oxygen in plasma, cells throughout the body, and body fluids is several times that of a normal pressure environment. Even in the case of obstructed blood flow, the body can be supplied with oxygen through the osmotic effect of human tissue fluid to meet the needs of life activities and improve the body's oxygen utilization efficiency. Generally speaking, hyperbaric oxygen therapy can achieve good results for all hypoxic and ischemic diseases, or a series of diseases caused by hypoxia and ischemia; hyperbaric oxygen therapy can also achieve good results for certain infectious diseases and autoimmune diseases.

[0003] In hyperbaric oxygen therapy, the hyperbaric oxygen chamber is a special medical device for hyperbaric oxygen therapy. According to the different pressurized media, it is divided into air pressurized chamber and pure oxygen pressurized chamber. The air pressurized oxygen chamber pressurizes the pressure in the hyperbaric oxygen chamber to the treatment pressure through air, and then allows the patient to breathe high-purity oxygen through the mask to achieve the treatment effect. However, using a mask to breathe oxygen will cause discomfort to the patient. At the same time, when breathing, the patient's exhaled waste gas, such as water vapor, may remain in the mask. Each time it is used, it is necessary to consider disinfecting the mask to avoid cross infection, which increases the workload of medical staff; the pure oxygen pressurized oxygen chamber directly pressurizes the hyperbaric oxygen chamber with high-purity oxygen, and the patient can directly breathe the gas in the hyperbaric oxygen chamber, but the patient's exhaled waste gas will also remain inside the hyperbaric oxygen chamber. At the same time, the key to ensuring safety and effectiveness is that the cabin of the hyperbaric oxygen chamber must be able to withstand and maintain the predetermined treatment pressure while allowing smooth entry and exit of personnel and equipment. The door design has therefore become a key link, especially the setting of the threshold, which strikes a balance between sealing and convenience of bed access. The door design of the hyperbaric oxygen chamber is divided into inward opening and outward opening. Both rely on tight sealing strips to fit around the door frame to ensure airtightness and no leakage in the high-pressure environment inside the cabin. The existence of the threshold is an important link to strengthen the bottom sealing. It and the sealing strip at the bottom of the door frame together build a complete airtight closure to prevent gas escape and maintain a constant pressure in the cabin, which is crucial to the stability of the treatment environment and patient safety. However, the threshold also brings a certain degree of challenges, especially for the entry and exit of large medical equipment such as beds. Summary of the invention

[0004] The present invention is intended to provide a hyperbaric oxygen device to reduce the accumulation of waste gas in the hyperbaric oxygen chamber and reduce the difficulty of entering and exiting large medical equipment such as hospital beds.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a hyperbaric oxygen device, including a hyperbaric oxygen chamber body and a patient transfer mechanism, the hyperbaric oxygen chamber body including a door frame and a pressurized oxygen supply assembly, the door frame is provided with a threshold, the pressurized oxygen supply assembly includes an oxygen supply valve, a circulation valve and a replacement valve connected to the hyperbaric oxygen chamber body through a flange, the oxygen supply valve, the circulation valve and the replacement valve are all one-way valves, the oxygen supply valve is connected to the circulation valve, and the replacement valve is connected to the atmosphere, the patient transfer mechanism includes a bed body and an obstacle crossing unit, the obstacle crossing unit includes an obstacle crossing arm rotatably arranged on the bed body, the obstacle crossing arm includes a first support leg and a second support leg, and a crawler is rotatably arranged between the first support leg and the second support leg.

[0006] The beneficial effects of this solution are as follows: 1. The obstacle crossing arm installed on the hospital bed is equipped with a first support leg and a second support leg. The two support points are connected by tracks to form a rotatable support structure, which can provide necessary support and balance when crossing the threshold; 2. The tracks are rotatably set on the hospital bed body, and the threshold can be crossed with the assistance of the tracks. The setting of the tracks allows the obstacle crossing arm to evenly distribute the weight and reduce friction when crossing the threshold, so that the bed can easily slide over the threshold, reducing the direct pressure on the bed and the threshold and reducing the risk of injury; 3. The rotation characteristics of the obstacle crossing arm allow the bed to adjust its angle on the threshold autonomously without the need for external force assistance, which reduces the physical burden of medical staff and makes single-person operation possible; 4. In this way, the direct lifting of medical staff during the transportation process is reduced, the risk of work-related injuries is reduced, and at the same time, the stability and safety of the patient during the transfer process are ensured, and the patient will not feel uncomfortable due to improper transportation operations.

[0007] At the same time, through the oxygen supply valve, circulation valve and replacement valve installed on the hyperbaric oxygen chamber, medical staff can directly use pure oxygen to pressurize the hyperbaric oxygen chamber so that the pressure in the hyperbaric oxygen chamber reaches the treatment pressure. During the treatment, the gas in the hyperbaric oxygen chamber is circulated with the help of the oxygen supply valve and the circulation valve to avoid the accumulation of waste gas in the hyperbaric oxygen chamber and affect the treatment effect. At the end of the treatment, the high-purity oxygen in the hyperbaric oxygen chamber can be exported through the circulation valve, and the unused high-purity oxygen can be recovered through the circulation valve to reduce the loss of high-purity oxygen, thereby reducing the cost of a single treatment in the pure oxygen compression chamber. Air is introduced into the hyperbaric oxygen chamber through the replacement valve, so that the oxygen concentration in the hyperbaric oxygen chamber gradually returns to normal concentration, avoiding discomfort to patients due to sudden changes in oxygen concentration.

[0008] Furthermore, the obstacle crossing arm is fixedly provided with a rotating shaft, the rotating shaft is rotatably provided on the bed body, the bed body is provided with a universal wheel, and the difference between the distance from the track to the rotating shaft and the distance from the universal wheel to the rotating shaft is greater than or equal to the height of the threshold.

[0009] Beneficial effects: 1. The rotating shaft of the obstacle crossing arm is set on the bed body, which ensures stable support during rotation. At the same time, the universal wheels on the bed body can rotate flexibly, and the two work together to make the bed move more smoothly on the threshold; 2. The distance difference between the track and the universal wheel to the rotating shaft matches the height of the threshold, so that when crossing the threshold, the track can just support the bed to be lifted to a height high enough to cross the threshold and avoid collision with the threshold, while not being too high, maintaining the overall balance of the bed and making the patient feel stable; 3. It avoids the bed from shaking up and down significantly when crossing the threshold, reducing the discomfort of the patient, especially for fragile patients, such as those with spinal orthopedics, internal injuries, and post-surgery, to protect them from secondary injuries; 4. After crossing the obstacle crossing arm, it still plays a supporting role to prevent the impact caused by the sudden drop of the bed. Through the gradual cabin, the whole process is smooth, ensuring the comfort and safety of the patient.

[0010] Furthermore, the patient transfer mechanism also includes a control unit, which includes a handle, an adjustment shaft rotatably arranged on the bed body, and a transmission rod. The handle is fixedly arranged at one end of the adjustment shaft. The rotating shaft and the adjustment shaft are respectively provided with a first bevel gear, and a transmission rod is arranged between the first bevel gear and the second bevel gear.

[0011] Beneficial effects: 1. The first bevel gear and the second bevel gear are respectively provided on the adjusting shaft and the rotating shaft, and the two gears are connected by a transmission rod to form a transmission chain, so that the operator can directly transmit the rotating action of the handle to the obstacle crossing arm of the bed to achieve the crossing of the threshold or direction adjustment; 2. This design allows a single medical staff or operator to independently complete actions such as pushing, turning, crossing the threshold and positioning the bed, reducing the tediousness of the previous need for multi-person collaboration, reducing labor costs, improving work efficiency, and at the same time reducing the difficulty of operation, making the patient transfer process safer, more efficient and smoother.

[0012] Furthermore, a protective cover for shielding the first bevel gear and the second bevel gear is arranged on the bed body, and the control unit also includes a clutch, which includes a mounting plate and a roller, and the mounting plate is sleeved on the adjusting shaft and fixedly connected to the protective cover.

[0013] Beneficial effects: 1. The addition of the clutch makes the control unit more flexible. The adjustment shaft is connected to the mounting plate and the roller, so that the rotation of the shaft can be easily controlled when needed, and locked when not needed, which avoids the obstacle crossing arm from rotating due to misoperation or external force when not controlled, and improves the precise control and safety of threshold crossing; 2. The protective cover of the first bevel gear and the second bevel gear not only avoids the direct exposure of the mechanical part to the outside, reduces wear and foreign matter jamming and contusion, but also avoids the entry of dust and oil, prolongs the service life, and reduces maintenance requirements; 3. The protective cover design is connected to the mounting plate of the clutch, which further enhances the integrity of the system and makes the protection and control modular operation more unified; 4. Through the control of the clutch and the protective cover, when the bed is operating, medical staff can focus more on the comfort and safety of the patient without worrying about mechanical interference, which reduces the complexity of operation, improves the smoothness and safety of the overall operation, and also makes the patient experience more stable during the transfer process and reduces tension; 5. By using the clutch to limit the reversal of the shaft, the stepless adjustment of the arm can be realized, making the obstacle crossing unit more adaptable.

[0014] Furthermore, there are two obstacle crossing arms, a connecting piece is provided between the two obstacle crossing arms, a seat is hinged on the inner wall of the hyperbaric oxygen chamber, the seat is provided with armrests, and the connecting piece can be clamped between the armrest and the inner wall of the hyperbaric oxygen chamber.

[0015] Beneficial effects: 1. The setting of two obstacle crossing arms provides more balanced and powerful support, especially when crossing the threshold, the double side wing protection increases the stability of the bed and reduces the risk of side rollover; 2. The additional connector between the two obstacle crossing arms strengthens the overall structure, ensures the synchronous movement of the two arms, and effectively avoids the possible imbalance or dislocation of a single arm when stabilizing the transition threshold, thereby improving the continuity of control; 3. The seat is articulated on the inner wall of the hyperbaric oxygen chamber and is equipped with armrests. It is not only a transition point for patients to rest after entering, but also a safety fixing device. The connector can be stuck between the armrest and the inner wall of the hyperbaric chamber to fix the bed, ensuring that the position of the bed in the cabin is relatively fixed to prevent movement.

[0016] Furthermore, it also includes a high-pressure oxygen generating mechanism, which includes a first purification unit, a second purification unit, a high-pressure oxygen generating unit and a circulation unit that are connected in sequence. The air includes low-boiling point gas, oxygen-rich gas and high-boiling point gas. The air passes through the first purification unit and the second purification unit in sequence to remove the high-boiling point gas and the low-boiling point gas in turn. The oxygen-rich gas is cooled and liquefied to obtain oxygen-rich liquid. The oxygen-rich liquid enters the high-pressure oxygen generating unit. The high-pressure oxygen generating unit can store and use the oxygen-rich liquid to prepare high-pressure oxygen for high-pressure oxygen therapy. The high-pressure oxygen chamber is connected to the high-pressure oxygen generating unit. A circulation unit is arranged on the high-pressure oxygen chamber. The circulation unit includes a circulation pipeline connected to the first purification unit. A circulation valve is arranged on the circulation pipeline.

[0017] Beneficial effects: 1. The high-pressure oxygen generating mechanism passes through the first purification unit and the second purification unit to finely filter and remove low-boiling point gases (such as nitrogen) and high-boiling point impurities (such as water vapor and impurities), ensuring the purity of the oxygen-rich gas, and further liquefies and prepares high-pressure oxygen through the high-pressure oxygen unit to ensure that the purity and concentration of the oxygen used for treatment meet medical standards. The hyperbaric oxygen generating mechanism passes through the first purification unit and the second purification unit to finely filter and remove low-boiling point gases (such as nitrogen) and high-boiling point impurities (such as water vapor and impurities), ensure the purity of the oxygen-rich gas, further liquefy it and prepare hyperbaric oxygen through the hyperbaric oxygen unit, and ensure that the purity and concentration of the oxygen used for treatment meet the medical standards; 2. Since the interior of the hyperbaric oxygen chamber is an environment of high pressure and high oxygen concentration, the ignition point of objects and articles decreases in a high-concentration oxygen environment. In order to ensure the safety of hyperbaric oxygen treatment, patients and accompanying personnel are prohibited from carrying any electronic devices. The duration of hyperbaric oxygen treatment is generally 100-120 minutes. During the treatment, the patient can drink water, talk to each other or communicate with the doctor, making the treatment process more comfortable and the treatment time too boring, thereby improving the comfort of the treatment process; 3. The gas in the hyperbaric oxygen chamber is connected and circulated with the first purification unit through the circulation unit, so that the gas in the hyperbaric oxygen chamber maintains a high oxygen concentration, avoiding the accumulation of waste gas generated by the patient's breathing in the hyperbaric oxygen chamber during the treatment, affecting the treatment effect.

[0018] Furthermore, the first purification unit and the second purification unit each include a compression part, a heat exchange part and an expansion part, the high-pressure oxygen generating unit includes an oxygen-rich liquid storage part and a high-pressure oxygen generating part, the high-pressure oxygen generating part is provided with an interlayer, and the interlayer is connected to the heat exchange part.

[0019] Beneficial effects: 1. A heat exchange part is arranged after the compression part of the first purification unit and the second purification unit. Through the heat exchange process, the heat energy generated by compression is used to pre-cool the heat medium, which not only reduces the subsequent cooling demand, but also recovers energy, reduces energy consumption, and improves the overall purification efficiency; 2. The interlayer of the high-pressure oxygen generating part is connected to the heat exchange part, and the heat energy in the liquefaction process, that is, the heat generated by oxygen-rich liquefaction, is recovered by the heat exchange part again through heat exchange for cooling the medium in the compression part, forming an energy-saving cycle, further improving the overall energy efficiency of the system; 3. Through the recycling of thermal energy, not only the consumption of external energy is reduced, the impact on the environment is reduced, but also the sustainability of the system's self-sufficient high-pressure oxygen therapy is improved, ensuring high-quality oxygen therapy healing while responding to the concept of environmental protection.

[0020] Furthermore, it also includes treatment clothing made of fire-resistant and flame-retardant materials.

[0021] Beneficial effects: 1. Safety upgrade: In a hyperbaric oxygen environment, the ignition point of traditional materials is lowered. Treatment gowns made of fire-resistant and flame-retardant materials have a higher ignition point and can effectively resist friction, static electricity or heat sources from daily activities that may be generated during treatment, thereby reducing the risk of fire, ensuring that treatment gowns will not become a source of fire, and improving safety in the cabin; 2. Avoid the introduction of combustible materials. Traditional clothing such as cotton and synthetic fibers are flammable and may increase the risk of spontaneous combustion in a high-oxygen environment. By replacing them, they can be controlled from the source, potential sources of fire can be eliminated, and fire hazards in the cabin can be reduced; 3. The use of fire-resistant and flame-retardant treatment gowns as standard equipment is also a form of safety education for patients and medical staff, strengthening the particularity of the hyperbaric oxygen chamber environment, paying attention to operating specifications, and improving overall safety awareness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional diagram of a patient transfer mechanism according to Example 1 of the present invention;

[0023] Figure 2 This is a three-dimensional diagram of an obstacle crossing unit in Example 1 of the present invention;

[0024] Figure 3 A three-dimensional diagram of a control unit according to Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the assembly of the control unit of Example 1 of the present invention;

[0026] Figure 5 This is a schematic diagram of the obstacle surmounting process of Embodiment 1 of the present invention;

[0027] Figure 6 This is a schematic diagram of a seat in Embodiment 1 of the present invention;

[0028] Figure 7 It is a schematic diagram of the high-pressure oxygen generating mechanism of the present invention. DETAILED DESCRIPTION

[0029] The following is further described in detail through specific implementation methods:

[0030] The reference numerals in the drawings of the specification include: a first purification unit 11, a first air intake valve 111, an exhaust valve 112, a second purification unit 12, a second air intake valve 121, an exhaust valve 122, a liquid oxygen storage unit 21, an explosion-proof valve 201, an oxygen intake valve 202, a high-pressure oxygen generating unit 22, a high-pressure oxygen chamber 3, a threshold 31, a seat 32, a fixing part 321, an oxygen supply valve 301, a circulation valve 302, a replacement valve 303, a bed body 41, Obstacle crossing unit 42, obstacle crossing arm 421, track 422, rotating shaft 423, first support member 4241, second support member 4242, control unit 43, first bevel gear 4311, second bevel gear 4312, transmission rod 432, mounting plate 433, mounting hole 4331, adjusting shaft 434, shoulder 4341, groove 4342, roller 435, spring 436, handle 437, protrusion 438, protective cover 44.

[0031] Example 1

[0032] Embodiment 1 is basically as attached Figure 1-6 As shown, Figure 1-6 The hyperbaric oxygen device shown in FIG. 1 includes a hyperbaric oxygen chamber 3 and a patient transfer mechanism. The hyperbaric oxygen chamber 3 includes a chamber body and a chamber door. Figure 5 The cabin body is provided with a door frame, a threshold 31 which is integrated with the door frame is provided at the lower part of the door frame, a sealing strip is provided on both the door frame and the threshold 31, and the cabin door is hinged on the door frame, so that the sealing of the hyperbaric oxygen chamber 3 is ensured by the contact between the cabin door and the sealing strip. Figure 7 The oxygen supply valve 301, the circulation valve 302 and the replacement valve 303 are shown. Figure 6 As shown, a plurality of seats 32 are hinged on the inner walls on both sides of the cabin door frame, and torsion springs are provided at the hinges between the seats 32 and the cabin. The seats 32 are provided with armrests for patients to sit down and rest during treatment or for medical staff to take a temporary rest during the accompanying process, so as to avoid patients or medical staff from falling due to oxygen intoxication due to sudden exposure to a high concentration of oxygen. When the seats 32 are not needed or the interior of the cabin is to be disinfected and cleaned, the seats 32 are driven by the torsion springs to rotate toward the inner wall of the cabin, thereby reducing interference with the patient transfer mechanism in and out.

[0033] The oxygen supply valve 301, the circulation valve 302 and the replacement valve 303 are all one-way valves. During treatment, oxygen flows into the chamber through the oxygen supply valve 301, so that the pressure required for hyperbaric oxygen treatment is maintained in the hyperbaric oxygen chamber 3, and flows out through the circulation valve 302. Through the joint action of the oxygen supply valve 301 and the circulation valve 302, the gas in the hyperbaric oxygen chamber 3 is kept circulating, and the waste gas generated by the patient's breathing during the treatment is discharged. By controlling the flow of the oxygen supply valve 301 and the circulation valve 302, the pressure and oxygen concentration in the hyperbaric oxygen chamber 3 are maintained to avoid the waste gas in the hyperbaric oxygen chamber 3 not being discharged in time, which affects the treatment effect. At the end of the treatment, the oxygen supply valve 301 is closed, the replacement valve 303 is opened, and the hyperbaric oxygen chamber 3 is replaced by air. At the same time, the hyperbaric oxygen chamber 3 is depressurized until the gas in the chamber of the hyperbaric oxygen chamber 3 is close to the atmosphere, and the cabin door is opened to allow the patient to leave the hyperbaric oxygen chamber 3.

[0034] Patient transfer facilities are mainly used for patients who need to stay in bed and are not easy to move, such as Figure 1 , Figure 2 As shown, it includes a bed body 41, a protective cover 44, an obstacle crossing unit 42 and a control unit 43. The bed body 41 includes four bed legs, and universal wheels are installed at the lower ends of the bed legs. The universal wheels include front wheels and rear wheels, so that medical staff can move the patient by moving the bed body 41.

[0035] like Figure 2 As shown, the obstacle crossing unit 42 includes a rotating shaft 423 and a rotating arm, the rotating arm includes two obstacle crossing arms 421, a connecting piece is arranged between the two obstacle crossing arms 421, the connecting piece includes a first supporting piece 4241 and a second supporting piece 4242, a fixing portion 321 is arranged on the armrest, the first supporting piece 4241 can be clamped between the fixing portion 321 and the inner wall of the hyperbaric oxygen chamber 3, so as to ensure that the patient transfer mechanism is placed in the cabin in an orderly manner, the obstacle crossing arm 421 is rotatably arranged on the front side of the bed body 41 through the rotating shaft 423, the obstacle crossing arm 421 includes a first supporting foot and a second supporting foot, and the track 422 is rotatably arranged between the first supporting foot and the second supporting foot.

[0036] The control unit 43 includes an adjustment shaft 434, a handle 437, a transmission rod 432 and a clutch. Figure 3As shown, the adjusting shaft 434 is provided with a shaft shoulder 4341 integrally formed with the adjusting shaft 434, and a groove 4342 is provided on the shaft shoulder 4341. A protrusion 438 is provided on the inner side of the handle 437. The handle 437 is rotatably provided at one end of the adjusting shaft 434, and the protrusion 438 extends into the groove 4342. The rotating shaft 423 and the adjusting shaft 434 are respectively provided with a first bevel gear 4311 and a second bevel gear 4312, forming a transmission chain, so that the operator can directly transmit the rotation action of the handle 437 to the obstacle crossing arm 421 of the bed to achieve the crossing or direction adjustment of the threshold 31. The protective cover 44 is provided outside the first bevel gear 4311 and the second bevel gear 4312 and is bolted or welded to the bed body 41. Bevel gears meshing with the first bevel gear 4311 and the second bevel gear 4312 are respectively fixed at both ends of the transmission rod 432, thereby completing the angle adjustment of the obstacle crossing unit 42. Figure 4 As shown, the clutch includes a mounting plate 433, a spring 436 and a roller 435. The mounting plate 433 is provided with a mounting hole 4331 and a mounting cavity. The mounting plate 433 is rotatably arranged on the adjusting shaft 434 and is bolted to the protective cover 44 through the mounting hole 4331. The spring 436 is arranged between the two rollers 435 to push the roller 435 open so that the roller 435 is against the mounting cavity. When the handle 437 is rotated, the contact position between the protrusion 438 and the roller 435 facilitates the normal movement of the roller 435. When the shoulder 4351 is in contact with the roller 435, when the shoulder 4351 is rotated, the shoulder 4351 will cooperate with the mounting plate 433 to squeeze the roller 435. At this time, the rotation is blocked to prevent the rotating arm from driving the rotating shaft 423 to rotate, thereby reducing the work intensity of the operator. At the same time, the reversal of the rotating arm is limited by the clutch, and the rotation angle of the rotating arm can be infinitely adjusted to improve the universality of the obstacle crossing unit.

[0037] Taking crossing the threshold of a hyperbaric oxygen chamber as an example, when using it, Figure 5 As shown, when a threshold appears in front of the patient transfer mechanism, as shown in a, the operator adjusts the angle of the rotating arm through the handle 437 so that the lower end of the track 422 is lower than the upper edge of the threshold 31, and then pushes the patient transfer mechanism, as shown in FIG. b, relying on the sliding of the track 422, the lower end of the track 422 slides to the upper surface of the threshold 31 until the state of FIG. c, the track 422 is separated from the upper surface of the threshold 31, the operator again adjusts the angle of the rotating arm through the handle 437 until the state of FIG. d, so that the lower end of the track 422 is in contact with the ground in the hyperbaric oxygen chamber, and continues to push into the hyperbaric oxygen chamber until the rear wheel approaches the threshold 31. At this time, the operator can use the track as a fulcrum to lift the rear wheel of the patient transfer mechanism onto the threshold 31, and finally successfully cross the threshold 31. Of course, the obstacle crossing unit 42 of the present application can also be used to cross other obstacles, which will not be elaborated here.

[0038] Example 2

[0039] On the basis of embodiment 1, it also includes a hyperbaric oxygen generating mechanism and a therapeutic suit, such as Figure 7 As shown, the high-pressure oxygen generating mechanism includes a first purification unit 11, a second purification unit 12 and a high-pressure oxygen generating unit connected in sequence. The first purification unit 11 and the second purification unit 12 both include a compression part, a heat exchange part and an expansion part connected in sequence. The compression part of the first purification unit 11 is connected to a first air intake valve 111, the expansion part of the first purification unit 11 is connected to a waste valve 112, the compression part of the second purification unit 12 is connected to a second air intake valve 121, and the second air intake valve 121 is connected to the expansion part of the first purification unit 11. The air passes through the first The air enters the first purification unit 11 through the inlet valve 111, passes through the compression part, heat exchange part and expansion part of the first purification unit 11 in sequence, so that the temperature is reduced to -80℃±5℃, and low-boiling point gases such as carbon dioxide, sulfur dioxide, nitrogen oxides and water vapor in the air are discharged through the exhaust valve 112, and then passes through the compression part, heat exchange part and expansion part of the second purification unit 12 in sequence, so that the temperature is reduced to -180℃±5℃. At this time, the oxygen is liquefied into oxygen-rich liquid. The expansion part of the second purification unit 12 is connected to the exhaust valve 122, and the nitrogen is discharged from the exhaust valve 122. 122 flows out, the high-pressure oxygen generating unit includes a liquid oxygen storage part 21 and a high-pressure oxygen generating part 22, the oxygen-rich liquid flows into the liquid oxygen storage part 21, the liquid oxygen storage part 21 is provided with an explosion-proof valve 201 and an oxygen inlet valve 202, the explosion-proof valve 201 is connected to the atmosphere at high altitude, and the oxygen inlet valve 202 is connected to the high-pressure oxygen generating part 22. When a problem occurs in the liquid oxygen storage part 21, resulting in the pressure in the liquid oxygen storage part 21 being greater than the set pressure of the explosion-proof valve 201, the explosion-proof valve 201 opens to discharge the excess pressure into the atmosphere to reduce losses. The heat exchange part is built with a cooling medium The cooling medium can be Freon or tetrafluoroethane. The oxygen-rich liquid enters the high-pressure oxygen generating part 22 through the oxygen inlet valve 202 and is heated and gasified to obtain high-pressure oxygen. The pressure and temperature of the obtained high-pressure oxygen can be adjusted to avoid adjusting the temperature of the gas in the high-pressure oxygen chamber, so as to reduce the complexity of the high-pressure oxygen chamber and reduce the difficulty of repair and maintenance. The high-pressure oxygen generating part 22 is provided with an interlayer, which is connected to the cooling medium of the heat exchange part, so as to absorb the heat energy of the heat exchange part during the gasification process of the oxygen-rich liquid, form an energy-saving cycle, and further improve the overall energy efficiency of the system.

[0040] At the same time, since the hyperbaric oxygen chamber is pressurized directly by the produced high-purity oxygen, the gas in the hyperbaric oxygen chamber is all high-purity oxygen, which reduces the ignition point of the substances in the hyperbaric oxygen chamber. In order to further standardize the treatment standards of the hyperbaric oxygen chamber and reduce the risk of spontaneous combustion accidents in the hyperbaric oxygen chamber, treatment clothing can be made of fire-resistant and flame-retardant fabrics. When patients and medical staff enter the hyperbaric oxygen chamber, they are required to change into treatment clothing, thereby controlling and eliminating potential fire sources at the source and reducing fire hazards in the cabin.

[0041] Example 3

[0042] On the basis of Example 2, the air inlet of the first purification unit 11 is provided with a water washing dust removal section and an ultraviolet sterilization section. A filter is provided between the ultraviolet sterilization section and the compression section. The air first passes through the water washing section to wash away solid impurities in the air, and then passes through the ultraviolet sterilization to kill microorganisms in the air. The air becomes purer after water washing, sterilization and filtration, thereby further improving the purity of the high-pressure oxygen.

[0043] The above is only an embodiment of the present invention, and common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that the technical means for solving the problems in the above-mentioned embodiments of the present invention can be used in combination to solve multiple technical problems at the same time. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of the present invention, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A hyperbaric oxygen device, characterized in that: It includes a hyperbaric oxygen chamber body and a patient transfer mechanism. The hyperbaric oxygen chamber body includes a door frame and a pressurized oxygen supply component. The door frame is provided with a threshold. The pressurized oxygen supply component includes an oxygen supply valve, a circulation valve and a replacement valve connected to the hyperbaric oxygen chamber body through a flange. The oxygen supply valve, the circulation valve and the replacement valve are all one-way valves. The oxygen supply valve is connected to the circulation valve, and the replacement valve is connected to the atmosphere. The patient transfer mechanism includes a bed body and an obstacle crossing unit. The obstacle crossing unit includes an obstacle crossing arm rotatably arranged on the bed body. The obstacle crossing arm includes a first support leg and a second support leg. A crawler is rotatably arranged between the first support leg and the second support leg; the obstacle crossing unit includes two obstacle crossing arms. A connecting piece is arranged between the two obstacle crossing arms. The connecting piece includes a first support piece; a plurality of seats are hinged to the inner walls on both sides of the door frame of the hyperbaric oxygen chamber body. A torsion spring is arranged at the hinge between the seat and the cabin body. The seat is provided with an armrest, and a fixing part is provided on the armrest. The first support member is clamped between the fixing part and the inner wall of the hyperbaric oxygen chamber body, so as to ensure that the patient transfer mechanism is placed in the cabin in an orderly manner; it also includes a hyperbaric oxygen generating mechanism, which includes a first purification unit, a second purification unit, a hyperbaric oxygen generating unit and a circulation unit which are connected in sequence. The air includes a low-boiling point gas, an oxygen-rich gas and a high-boiling point gas. The air passes through the first purification unit and the second purification unit in sequence to remove the low-boiling point gas and the high-boiling point gas in turn. The oxygen-rich gas is cooled and liquefied to obtain an oxygen-rich liquid. The oxygen-rich liquid enters the hyperbaric oxygen generating unit. The hyperbaric oxygen generating unit stores and uses the oxygen-rich liquid to prepare hyperbaric oxygen for hyperbaric oxygen therapy. The oxygen supply valve is connected to the hyperbaric oxygen generating unit, and the circulation valve is connected to the first purification unit.

2. A high pressure oxygen device according to claim 1, characterized in that: The obstacle crossing arm is fixedly provided with a rotating shaft, the rotating shaft is rotatably arranged on the bed body, the bed body is provided with a universal wheel, and the difference between the distance from the crawler to the rotating shaft and the distance from the universal wheel to the rotating shaft is greater than or equal to the height of the threshold.

3. A high pressure oxygen device according to claim 2, characterized in that: The patient transfer mechanism also includes a control unit, which includes a handle, an adjustment shaft rotatably arranged on the bed body, and a transmission rod. The handle is fixedly arranged at one end of the adjustment shaft. The rotating shaft and the adjustment shaft are respectively provided with a first bevel gear, and a transmission rod is arranged between the first bevel gear and the second bevel gear.

4. A high pressure oxygen device according to claim 3, characterized in that: A protective cover for shielding the first bevel gear and the second bevel gear is arranged on the bed body. The control unit also includes a clutch. The clutch includes a mounting plate and a roller. The mounting plate is sleeved on the adjusting shaft and fixedly connected to the protective cover.

5. A high pressure oxygen device according to claim 1, characterized in that: The first purification unit and the second purification unit both include a compression part, a heat exchange part and an expansion part. The heat exchange part is equipped with a cooling medium. The high-pressure oxygen generating unit includes an oxygen-rich liquid storage part and a high-pressure oxygen generating part. The high-pressure oxygen generating part is provided with an interlayer, which is connected to the cooling medium of the heat exchange part.

6. A high pressure oxygen device according to claim 5, characterized in that: It also includes therapeutic clothing made of fire-resistant and flame-retardant materials.

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