Inflatable vest suitable for protecting body temperature of patient in perioperative period

Abstract

The utility model discloses an inflatable vest suitable for protecting the body temperature of a perioperative patient, which comprises a vest and a soft cushion, a plurality of air columns are arranged on the other side of the vest, and a gap is formed between every two air columns; protruding parts are further arranged at the two ends of the vest respectively, an air inlet channel, an air outlet channel and a plurality of heating air channels are arranged in the vest, the two ends of each heating air channel are communicated with the air inlet channel and the air outlet channel respectively, the air inlet channel and the air outlet channel are communicated with the air inlet pipe and the air outlet pipe respectively, and the interiors of the air columns are communicated with the air inlet channel. The air inlet pipe is directly or indirectly communicated with an air outlet of the fan heater; a soft cushion is further fixed to the vest, is made of soft water absorption materials and is attached to the curved surface of the human body. The vest can directly cover the upper body of a patient and can be combined with a fan heater for use, so that the patient can obtain better body temperature protection in the perioperative period, low-body-temperature events and pressure injuries are prevented from occurring, a gap is formed in the vest so that a pipeline can pass through, and the vest is prevented from being pressed.

Description

Technical Field

[0001] The utility model relates to nursing equipment, in particular to an inflatable vest suitable for protecting the body temperature of perioperative patients. Background Art

[0002] Perioperative temperature protection, as an important part of accelerated recovery surgery, has been increasingly valued by clinical medical staff. Perioperative temperature protection can reduce the occurrence of intraoperative hypothermia, reduce the incidence of wound infection and cardiac complications, reduce the delayed awakening after anesthesia, and promote the recovery of surgical patients. Many medical care institutions and societies at home and abroad recommend or stipulate that the prevention of hypothermia in surgical patients should be a routine task. In the perioperative period, perioperative hypothermia is more likely to occur due to anesthesia, intraoperative exposure and duration of surgery, cold liquid effect, low ambient temperature of the operating room, individual factors and other reasons.

[0003] Hypothermia, also known as hypothermia or hypothermia, is a symptom of an organism's body temperature dropping below the temperature required for normal metabolism and physiological functions. For warm-blooded animals, core body temperature is usually maintained at a constant level through homeostasis. However, when the body is exposed to a cold environment, this internal mechanism may no longer be able to replenish the heat lost to the environment. When the body temperature drops below 35°C, hypothermia will occur. Severe hypothermia often has symptoms such as impaired consciousness, stiff neck, decreased blood pressure, bradycardia or arrhythmia.

[0004] Under normal circumstances, the core body temperature of the human body is stable at around 37°C, fluctuating within a very small range (0.2°C). The fluctuation range of the core body temperature will increase significantly under anesthesia, stress, and other conditions. For patients under general anesthesia, being in a low-temperature operating room, exposure to the body cavity during surgery, and the use of flushing fluid during surgery will significantly affect their core body temperature. It has been reported that 50% to 70% of patients undergoing surgery may experience perioperative hypothermia, and perioperative hypothermia is more common in elderly patients due to the decline of their body's reserve function, and it leads to a significant increase in postoperative complications and related mortality.

[0005] Clinically, the current conventional methods of temperature protection include:

[0006] 1. Increase the ambient temperature: Increasing the temperature of the operating room is the most effective and simplest way to reduce the occurrence of hypothermia. Studies have found that an operating room temperature below 23°C is one of the high-risk factors for intraoperative hypothermia. However, although a temperature above 26°C can reduce the incidence of hypothermia, it increases the incidence of infection and causes discomfort to surgical personnel. Therefore, the best ambient temperature should be selected according to different stages of surgery to maintain the patient's normal physiological function as much as possible and reduce the harm of body temperature loss to the patient. At the same time, the comfort of medical staff during surgery should also be considered. According to the physiological characteristics of body temperature changes after anesthesia, the temperature of the operating room is set to 25, 22-25, 20 and 25°C 30 minutes before the start of surgery, 1 hour after the start of surgery, 1 hour after surgery and 1 hour before the end of surgery. This can not only reduce the loss of patient body temperature and facilitate postoperative patient rewarming, but also improve the comfort of medical staff and ensure their attention.

[0007] 2. Heating of infusion, blood products and flushing fluids Heating of fluids can effectively alleviate perioperative hypothermia. Meta-analysis by Liu Ruihong et al. showed that heating of fluids can not only maintain the patient's perioperative body temperature, but also reduce the incidence of shivering and increase thermal comfort. The Association of Perioperative Registered Nurses (AORN) regards fluid heating as an effective safety measure to prevent planned hypothermia. Fluid heating can generally be done in an ordinary constant temperature box, but it should not be left for too long and should be infused as soon as possible. For heating of blood products, a blood bag braid heating and insulation cover was designed according to the requirements of the 16th edition of the American Association of Blood Banks Technical Manual in 2008, which can accurately control the heating of blood products within the range of 35-37°C. At present, there is no consensus on the most suitable and safest temperature for heating fluids and blood products, which needs further exploration and evaluation. Regarding the heating of intraoperative lavage fluid, studies have found that the use of heated peritoneal lavage fluid during laparotomy can significantly reduce the occurrence of hypothermia, accelerate blood circulation, promote the metabolism of anesthetic drugs, enhance intestinal peristalsis, reduce the occurrence of infection, and accelerate patient recovery. Heating the lavage fluid to the normal human body temperature of 36-37°C can reduce the patient's perioperative body temperature loss and significantly reduce the incision infection rate. Using a controllable thermostat to keep the temperature of disinfectant, lavage fluid, and infusion fluid or blood at 36-37°C reduces the occurrence of hypothermia during surgery.

[0008] 3. Inflatable heating Inflatable heating system and circulating water blanket, heating blanket, convection insulation mattress, etc. are all active heating measures, which can achieve better warming effect when used during surgery. The inflatable heating system is currently the most effective and commonly used active heating method in clinical practice because of its simple operation, good safety and high heating efficiency. The temperature of the active inflatable heating blanket is controllable, which can form a thermal environment in the corresponding part of the patient's body and prevent the transfer of heat from the core to the body surface. At the same time, the patient begins to receive active inflatable insulation when entering the operating room, so that the warming effect is advanced and the temperature drop after anesthesia is reduced.

[0009] In the process of clinical practice, it is found that the active heating measure of inflation heating, as the most effective and commonly used active heating method in clinical practice, can increase the patient's body temperature, but there are still some shortcomings when used during surgery. During surgery, the chest area is often exposed because of the need to observe the patient's condition, and the chest area is pasted with ECG monitoring patches, resulting in the inability of the insulation devices currently on the market to fit the patient's skin, and the chest lines and catheters are entangled, resulting in gaps that cause the patient's body temperature to be lost, and there are currently no better auxiliary tools available for clinical use.

[0010] In this regard, the applicant hopes to innovate clinical nursing equipment based on actual clinical needs and design an inflatable vest suitable for perioperative patient temperature protection, so that it can be suitable for perioperative patient temperature protection of different types of patients, in order to better ensure patient nursing safety and improve clinical nursing quality and work efficiency. Utility Model Content

[0011] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an inflatable vest suitable for protecting the body temperature of perioperative patients, which can fit the human body and guide the pipeline.

[0012] To achieve the above-mentioned purpose, the utility model provides an inflatable vest suitable for protecting the body temperature of perioperative patients, comprising a vest and a soft cushion. Several air columns are arranged on the other side of the vest, and a gap is formed between two air columns; protruding parts are also respectively arranged on both ends of the vest, and an air inlet duct, an exhaust duct, and several heating air ducts are arranged inside the vest, and the two ends of the heating air duct are respectively connected with the air inlet duct and the exhaust duct, and the air inlet duct and the exhaust duct are respectively connected with the air inlet pipe and the exhaust pipe, the inside of the air column is connected with the air inlet duct, and the air inlet pipe is directly or indirectly connected with the air outlet of the heater; a soft cushion is also fixed on the vest, and the soft cushion is made of soft water-absorbing material, and the soft cushion fits the curved surface of the human body.

[0013] As a further improvement of the utility model, the inflatable vest also includes a pad cloth, one side of the vest is connected and fixed to the connecting part of the pad cloth, the pad cloth is made of smooth and breathable cloth, and the pad cloth is located between the human body and the mattress.

[0014] As a further improvement of the utility model, a tear surface is provided on the side of the pad cloth away from the connecting part, and the tear surface is fixed to the tear-off buckle cloth by Velcro; the tear-off buckle cloth and the tear-off buckle tape are fixed by Velcro, and the tear-off buckle tape is installed on the vest.

[0015] As a further improvement of the utility model, the soft pad and the vest can be quickly disassembled and assembled.

[0016] As a further improvement of the present invention, the vest is made of transparent material, and the soft pad does not completely cover the end surface of the vest.

[0017] As a further improvement of the utility model, the air column is also assembled with one end of an air column belt, and the pipeline passes through the vest, the gap, and the air column belt to achieve fixation of the pipeline.

[0018] As a further improvement of the present invention, an airway valve is installed in the heating airway, and the airway valve includes an airway valve shell and an airbag valve. The airway valve shell is fixed to the inner wall of the heating airway, and a penetrating airway valve hole is provided inside the airway valve shell. The airway valve hole is connected to the heating airway and an airbag valve is installed in the airway valve hole. A penetrating airbag valve hole is provided on the inner side of the airbag valve, and the airbag valve hole is connected to the airway valve hole. The airbag valve is elastic and has a hollow airbag valve cavity inside, and the airbag valve cavity is filled with isopentane.

[0019] As a further improvement of the present invention, a thermostat is connected in series between the heater and the air inlet pipe, the thermostat comprising a temperature control shell and a temperature control airbag, the temperature control airbag is installed in the temperature control shell, the temperature control airbag is elastic and has a sealed, hollow temperature control airbag cavity inside, the temperature control airbag cavity is filled with isopentane, a temperature control airbag hole is provided on the inside of the temperature control airbag, and the airflow of the heater passes through the temperature control airbag hole and enters the air inlet pipe.

[0020] As a further improvement of the present utility model, the temperature controller also includes a spring clip and a micro switch. An airbag protrusion is provided on the temperature control airbag, and the airbag protrusion is close to or close to the end plate. The end plate is installed on the spring clip, and the spring clip is installed in the temperature control shell. The spring clip is elastic and applies an elastic force to the end plate to press the airbag protrusion. A trigger plate is also installed on the end plate, and the trigger plate is opposite to the trigger end of the micro switch. After the airbag protrusion expands, it will drive the trigger plate to touch and press the micro switch so that the micro switch is triggered. After the micro switch is triggered, a signal is input to the MCU, and the MCU controls the sound and light alarm to emit a sound and light alarm.

[0021] As a further improvement of the present utility model, the temperature controller also includes a first contact seat and a second contact seat, the trigger plate is located between the first contact seat and the second contact seat, one end of the first contact seat and the second contact seat are respectively installed in the temperature control shell, and the first contact seat and the second contact are respectively installed on the first contact seat and the second contact seat, the first contact and the second contact are pressed and conductive, and the first contact and the second contact are connected in series to the power cord of the heater; the first contact seat and the second contact seat are both elastic, and in the initial state, the first contact seat and the second contact seat drive the first contact and the second contact to press each other and conduct electricity through their own elasticity.

[0022] The beneficial effects of the utility model are:

[0023] The vest of the utility model can directly cover the upper body of the patient and can be used in conjunction with a heater to provide the patient with better body temperature protection during the perioperative period, prevent hypothermia and pressure injuries, and reserve a passage for placing the catheter on the front of the vest so that during the perioperative period, the ECG monitoring lead wire, central venous indwelling catheter, peripheral venous catheter, and oxygen saturation related pipelines can pass smoothly through the patient's chest and avoid being compressed. The utility model is easy to operate and can improve the work efficiency of clinical medical staff.

[0024] The vest of the utility model allows the head, shoulders, neck and chest area of ​​the patient to be covered by the inflatable vest when lying flat. When medical staff provide body temperature protection for patients, they only need to use the inflatable vest to help patients reduce heat loss. This project is easy to operate and can effectively improve the efficiency of clinical nursing work. The utility model is improved on the basis of the classic thermal insulation blanket according to the physiological curvature of the upper body of the human body, so that the patient's body can better contact with the thermal insulation vest, improve the efficiency of temperature protection, and also facilitate the observation of the patient's vital signs during the perioperative period.

[0025] The gaps between the gas columns of the utility model are convenient for fixing various wires and pipelines. When the patient has many pipelines on his body during the perioperative period, there is still enough space to ensure the adjustment of the lines. The transparent and visible vest design can facilitate the nursing staff to better observe the patient's chest allergies and intraoperative crisis events, and intervene and adjust in time. The utility model reserves gaps between the inflatable columns, which can allow various oxygen therapy and intravenous support therapy related catheters to pass through, preventing the patient from experiencing catheter compression, twisting, and accidental slippage during the perioperative period.

[0026] The soft cushion of the utility model adopts an anti-pressure sore material with good fit, so that it can better fit the patient's body shape during the process of body temperature protection, protect the patient's bony protrusions, reduce the incidence of upper body pressure sores when the patient lies flat for a long time during the perioperative period, and improve the patient's comfort and tolerance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is the use state of the utility model Figure 1 (Human body lying on the back);

[0029] Figure 3 It is the use state of the utility model Figure 2 (direction of human cross section);

[0030] Figure 4 is a cross-sectional view of the inflatable vest at the center plane where the axis of the air inlet 114 is located;

[0031] Figure 5It is a schematic diagram of the structure of the air column 112 and the air column belt 160;

[0032] Figure 6 is a cross-sectional view (partial) of the vest 110 at the cross section of the airway valve hole 311;

[0033] Figure 7 yes Figure 6 A schematic diagram of the state of the middle airway valve 300 after expansion;

[0034] Figure 8 5 is a schematic diagram of the structure of the thermostat 500. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] See also Figure 1-Figure 4 The inflatable vest of this embodiment includes a vest 110, a pad 120, a tear-off buckle 130, a tear-off buckle 140, and a cushion 150. One side of the vest 110 is connected and fixed to the connecting portion 122 of the pad 120. The pad 120 is made of smooth and breathable fabric. On the other side of the vest 110, several air columns 112 and tear-off buckles 140 are arranged. A gap 113 is formed between two air columns 112. When in use, the pipeline passes through the gap to guide and organize it to avoid the entanglement of the pipeline. A tear-off surface 121 is arranged on the side of the pad 120 away from the connecting portion 122. The tear-off surface 121 and the tear-off buckle 130 are fixed by Velcro. That is, the tear-off surface 121 and the tear-off buckle 130 are respectively provided with a hook surface and a fur surface of Velcro, and the fixing can be completed by fitting the hook surface and the fur surface. The design of the pad cloth 120 is not only to fix the vest 110, but also to facilitate subsequent removal. When it needs to be removed, first remove the tear-off buckle cloth 130, and then pull out the pad cloth 120. Since the pad cloth is made of smooth fabric, it is easy to pull out from under the human body.

[0038] The vest 110 is also provided with protruding portions 111 at both ends thereof, and an air inlet duct 114, an exhaust duct 115, and a plurality of heating air ducts 116 are provided inside the vest 110. The two ends of the heating air duct 116 are respectively connected with the air inlet duct 114 and the exhaust duct 115, and the air inlet duct 114 and the exhaust duct 115 are respectively connected with the air inlet pipe 210 and the exhaust pipe 220, and the interior of the air column 112 is connected with the air inlet duct 114, and the air inlet pipe 210 is connected with the air outlet of the heater 400.

[0039] The vest 110 is also fixed with a cushion 150, which is made of soft absorbent material, such as sanitary napkin material, and has a curved surface that fits the human body. In this embodiment, the cushion 150 and the vest 110 can be quickly disassembled and installed, because different patients have different cushions 150. The quick disassembly and installation design includes but is not limited to connecting the vest 110 and the cushion 150 through a zipper, a button and a button slot, a tear-off buckle, a concealed button, etc.

[0040] The vest 110 is made of transparent material to facilitate observation through the vest. The soft pad 150 does not need to completely cover the end surface of the vest, but only needs to be provided at a position corresponding to a protrusion of the human body or a pipeline, so that the vest portion is not blocked to facilitate observation through the vest.

[0041] See also Figure 3 When in use, the pad 120 is located between the mattress 910 and the human body 920, the tear-off buckle 130 is located on one side of the tear-off buckle 140, the vest 110 is located above the human body 920, the cushion 150 is located between the vest 110 and the human body 920, and the tear-off buckle 140 and the tear-off buckle 130 are fixed by Velcro, that is, a hook surface and a fleece surface are respectively provided between the tear-off buckle 140 and the tear-off buckle 130, and the hook surface and the fleece surface are used to fit and fix. The air column 112 and the side of the vest away from the air column 112 are respectively fitted with the mattress 910 to support the vest 110, thereby reducing the direct pressure of the vest 110 and the cushion 150 on the human body. However, the cushion 150 wraps three sides of the human body, thereby having a good thermal insulation effect. Finally, the heater blows heated air into the air intake pipe 210, the heated air enters the air intake duct 114, then enters each heating air duct 116 respectively, then enters the exhaust duct 115 to converge and finally be discharged from the exhaust pipe 220. The heated air heats the soft cushion 150, so that the soft cushion 150 keeps the human body warm.

[0042] In this embodiment, the design of the cushion can prevent pressure sores. Moist skin is one of the common reasons for damage to the integrity of the patient's skin. This embodiment uses a cushion with good water absorption effect, and the design of the water-absorbing cushion fits the human body shape, effectively protecting bony protrusions and local skin, reducing the pressure and shear force on the skin, and preventing pressure sores caused by long-term body temperature protection.

[0043] See also Figure 5 , the air column 112 is also assembled with one end of the air column belt 160, and the pipeline passes through the vest 110, the gap 113, and the air column belt 160 to fix the pipeline to prevent the pipeline from being scattered. In this embodiment, hook surfaces and fur surfaces can be respectively provided on the surfaces of the air column 112 and the air column belt 160 that are in contact with each other, so that the air column 112 and the air column belt 160 can be pasted together by tearing buckles. This is convenient for use on the one hand, and can adapt to pipelines of different diameters on the other hand. This design has a wide range of applications and can be used in various positions of perioperative patients. Relevant gaps for various wires and fluid support therapy are reserved so that various pipelines can pass through the warming vest smoothly without being compressed when the patient's body temperature is protected during the perioperative period.

[0044] At present, various clinical methods of protecting patient temperature have shortcomings to varying degrees. For patients who are awake during the perioperative period and can express their own perception of cold and heat, medical staff need to use various insulation tools to protect the patient's body temperature. A too low operating room temperature is one of the high-risk factors for intraoperative hypothermia, but a temperature exceeding 26°C increases the incidence of infection and causes discomfort to surgical personnel; the operation of the fluid heating tool for infusion liquid requires strict aseptic operation, otherwise it will cause patient infection; the temperature of the insulation blanket taken out of the warming box will gradually approach the room temperature over time; the inflatable insulation blanket, due to the poor fit with the patient, will lead to a decrease in insulation efficiency, and the wires are pressed on the patient and easily cause pressure sores. The inflatable vest of this embodiment is easy to operate, and there is no need to use multiple cushions or pillows. It only needs the operating room's regular heater to blow air inward to continuously protect the patient. It can effectively reduce the time and disadvantages required for other warming methods and improve clinical work efficiency.

[0045] See also Figure 4 , Figure 6-Figure 7An airway valve 300 is installed in the heating airway 116, and the airway valve 300 includes an airway valve shell 310 and an airbag valve 320. The airway valve shell 310 is fixed to the inner wall of the heating airway 116, and a penetrating airway valve hole 311 is arranged inside the airway valve shell 310, the airway valve hole 311 is communicated with the heating airway 116, and the airbag valve 320 is installed in the airway valve hole 311, and a penetrating airbag valve hole 322 is arranged on the inner side of the airbag valve 320, and the airbag valve hole 322 is communicated with the airway valve hole 311. The airbag valve 320 is elastic and has a hollow airbag valve cavity 321 inside. The airbag valve cavity 321 is filled with isopentane, which is liquid at room temperature and boils into gas at 27.8 degrees Celsius to drive the airbag valve 320 to expand to Figure 7 When in use, once the temperature reaches 27.8 degrees Celsius, it means that the gas in the heating air channel 116 is overheated. At this time, the air bag valve hole 322 becomes smaller to block the air flow, thereby achieving temperature control, and the air flow will enter other heating air channels 116 to make the vest heated evenly.

[0046] See also Figure 2 , Figure 8 A thermostat 500 is connected in series between the heater 400 and the air inlet pipe 210. The thermostat 500 includes a temperature control shell 510, a temperature control airbag 520, a spring 530, a micro switch 560, a first contact seat 540, and a second contact seat 550. The temperature control airbag 520 is installed in the temperature control shell 510. The temperature control airbag 520 is elastic and has a sealed, hollow temperature control airbag cavity 521 inside. The temperature control airbag cavity 521 is filled with isopentane. A temperature control airbag hole 522 is provided on the inner side of the temperature control airbag 520. The airflow of the heater passes through the temperature control airbag hole 522 and enters the air inlet pipe 210.

[0047] The temperature control airbag 520 is provided with an airbag protrusion 523, and the airbag protrusion 523 is close to or close to the end plate 531. The end plate 531 is installed on the spring sheet 530, and the spring sheet 530 is installed in the temperature control shell 510. The spring sheet 530 is elastic and applies elastic force to the end plate 531 to press the airbag protrusion 523. A trigger plate 532 is also installed on the end plate 531. The trigger plate 532 is directly opposite to the trigger end of the micro switch 560 and is located between the first contact seat 540 and the second contact seat 550. The first contact seat 540 and the second contact seat 550 are connected to each other. 0 are respectively installed in the temperature control shell 510, and the first contact seat 540 and the second contact seat 550 are respectively installed with the first contact 541 and the second contact 551, the first contact 541 and the second contact 551 are pressed and conductive, and the first contact 541 and the second contact 551 are connected in series to the power line of the heater 400; the first contact seat 540 and the second contact seat 550 are both elastic, and in the initial state, the first contact seat 540 and the second contact seat 550 drive the first contact 541 and the second contact 551 to press each other and conduct electricity through their own elasticity.

[0048] Once the temperature of the isopentane in the temperature-controlled airbag 520 reaches 27.8 degrees Celsius, it will boil, thereby driving the temperature-controlled airbag 520 and the airbag protrusion 523 to expand, which makes the temperature-controlled airbag hole 522 smaller to achieve throttling. At the same time, the airbag protrusion 523 pushes the end plate 531 to overcome the elastic force of the spring 530 and move toward the micro switch 560, until the trigger plate 532 triggers the micro switch 560. At the same time, the trigger plate 532 drives the second contact seat 550 to bend and deform so that the second contact 551 moves away from the first contact 541, and the second contact 551 and the first contact 541 are separated, and the heater 400 is powered off. After the micro switch is triggered, a signal is input to the MCU, and the MCU controls the sound and light alarm to send a sound and light alarm to remind medical staff that the temperature output of the heater is high, so as to facilitate timely processing.

[0049] In this embodiment, isopentane can be replaced with normal pentane or other materials with higher boiling temperatures, and the boiling points of these materials can be used to control the expansion of the corresponding airbags to achieve the function of automatic temperature control. This method does not require electricity, has a simple structure, high reliability and low cost.

[0050] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0051] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An inflatable vest suitable for protecting the body temperature of perioperative patients, characterized by: It comprises a vest and a soft cushion, wherein a plurality of air columns are arranged on the other side of the vest, and a gap is formed between two air columns; protruding parts are respectively arranged on both ends of the vest, and an air inlet duct, an exhaust duct and a plurality of heating air ducts are arranged inside the vest, the two ends of the heating air duct are respectively connected with the air inlet duct and the exhaust duct, the air inlet duct and the exhaust duct are respectively connected with the air inlet pipe and the exhaust pipe, the inside of the air column is connected with the air inlet duct, and the air inlet pipe is directly or indirectly connected with the air outlet of the heater; a soft cushion is also fixed on the vest, and the soft cushion is made of soft water-absorbing material, and the soft cushion fits the curved surface of the human body.

2. The inflatable vest according to claim 1, characterized in that: The inflatable vest also includes a pad cloth, one side of the vest is connected and fixed to the connecting part of the pad cloth, the pad cloth is made of smooth and breathable cloth, and the pad cloth is located between the human body and the mattress.

3. The inflatable vest according to claim 2, characterized in that: A tear-off surface is provided on one side of the pad away from the connecting portion, and the tear-off surface is fixed to the tear-off buckle cloth by Velcro; the tear-off buckle cloth is fixed to the tear-off buckle tape by Velcro, and the tear-off buckle tape is installed on the vest.

4. The inflatable vest according to claim 1, characterized in that: The cushion and the vest can be quickly disassembled and installed.

5. The inflatable vest according to claim 1, characterized in that: The vest is made of transparent material and the soft padding does not completely cover the end surface of the vest.

6. The inflatable vest according to claim 1, characterized in that: The air column is also assembled with one end of an air column belt, and the pipeline passes through the vest, the gap, and the air column belt to achieve the fixation of the pipeline.

7. The inflatable vest according to any one of claims 1 to 6, characterized in that: An airway valve is installed in the heating airway, and the airway valve includes an airway valve shell and an airbag valve. The airway valve shell is fixed to the inner wall of the heating airway, and a penetrating airway valve hole is provided inside the airway valve shell. The airway valve hole is connected to the heating airway and an airbag valve is installed in the airway valve hole. A penetrating airbag valve hole is provided on the inner side of the airbag valve, and the airbag valve hole is connected to the airway valve hole. The airbag valve is elastic and has a hollow airbag valve cavity inside. The airbag valve cavity is filled with isopentane.

8. The inflatable vest according to any one of claims 1 to 6, characterized in that: A thermostat is connected in series between the heater and the air inlet pipe. The thermostat includes a temperature control shell and a temperature control airbag. The temperature control airbag is installed in the temperature control shell. The temperature control airbag is elastic and has a sealed, hollow temperature control airbag cavity inside. The temperature control airbag cavity is filled with isopentane. A temperature control airbag hole is provided on the inside of the temperature control airbag. The airflow of the heater passes through the temperature control airbag hole and enters the air inlet pipe.

9. The inflatable vest according to claim 8, characterized in that: The temperature controller also includes a spring clip and a micro switch. An airbag protrusion is provided on the temperature control airbag, and the airbag protrusion is close to or close to the end plate. The end plate is installed on the spring clip, and the spring clip is installed in the temperature control shell. The spring clip is elastic and applies an elastic force to the end plate to press the airbag protrusion. A trigger plate is also installed on the end plate, and the trigger plate is opposite to the trigger end of the micro switch. After the airbag protrusion expands, it will drive the trigger plate to touch and press the micro switch so that the micro switch is triggered. After the micro switch is triggered, a signal is input to the MCU, and the MCU controls the sound and light alarm to emit a sound and light alarm.

10. The inflatable vest according to claim 8, characterized in that: The thermostat also includes a first contact seat and a second contact seat, the trigger plate is located between the first contact seat and the second contact seat, one end of the first contact seat and the second contact seat are respectively installed in the temperature control shell, and the first contact seat and the second contact seat are respectively installed with a first contact and a second contact, the first contact and the second contact are pressed and conductive, and the first contact and the second contact are connected in series to the power cord of the heater; the first contact seat and the second contact seat are both elastic, and in the initial state, the first contact seat and the second contact seat drive the first contact and the second contact to press each other and conduct electricity through their own elasticity.

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