216 results about "Oxygen mask" patented technology

The present invention relates to the technical field of medical devices, and particularly to a mask fixing device, comprising: a mask body, on which a base is provided; a fixing part, which is fixedly arranged on the base and has at least two working states; a drawstring, which passes through the fixing part so that after the drawstring is tightened, the mask body fits with the human face to ensure sealing; wherein, when the fixing part is in the first working state, the drawstring slides relative to the mask body, and when the fixing part is in the second working state, the drawstring is fixed relative to the mask body. The present invention ensures the fit of the mask with the human face through the drawstring, and then realizes the fixation of the drawstring and the mask through the fixing part of the drawstring installed on the mask. This structure is convenient to install and is suitable for ordinary medical oxygen masks.

The invention discloses synthetic resin and an adhesive for a medical oxygen anaesthetic mask as well as a preparation method and application of the synthetic resin and the adhesive, and the synthetic resin is prepared by the following steps: carrying out ring-opening reaction on KH-560 and KH-550 to generate a siloxane intermediate with hydroxyl, and modifying polyurethane by using the siloxane intermediate; the adhesive comprises the following components in parts by weight: 100 parts of synthetic resin, 45-95 parts of a reactive diluent and 4-14 parts of a photoinitiator, and the reactive diluent mainly comprises isobornyl acrylate, N, N-dimethylacrylamide, tetrahydrofuran acrylate and hydroxyethyl acrylate; compared with the prior art, the adhesive prepared from the synthesized modified resin has the advantages that the adhesive can be quickly cured under the irradiation of an LED lamp, the energy consumption is low, and automatic production is facilitated; the oxygen mask has the characteristics of good surface dryness, good flexibility, no blistering at constant temperature and humidity, firmness of a PC (Poly Carbonate) surface cup and a PVC (Polyvinyl Chloride) air bag for bonding the oxygen mask, and the like.

This utility model discloses an active exhaust saturated oxygen therapy device, comprising an oxygen source, an oxygen therapy device, and an active exhaust structure connected sequentially via tubing. The oxygen therapy device includes a respirator, a saturated oxygen mask, and an elastic airbag connected sequentially. The active exhaust structure includes a vacuum tank and a vacuum pump. The elastic airbag has an inlet and an outlet. The saturated oxygen mask is connected to the inlet of the elastic airbag via tubing, and the outlet of the elastic airbag is connected to one end of the vacuum tank via tubing. The other end of the vacuum tank is connected to the vacuum pump. A vacuum pressure sensor is installed on the vacuum tank. This utility model solves the problems of reliance on chamber pressure for exhaust and uneven exhaust in existing technologies. This utility model can achieve uniform and efficient exhaust in low-pressure and zero-pressure environments. It can also effectively handle instantaneous high-flow exhalation, avoiding suffocation and improving the user experience for oxygen therapy personnel.

The invention relates to a mechanical oxygen supply flow indicator for an aviation oxygen mask, which comprises a sleeve tube partially or completely made of transparent materials, an oxygen inlet tube is arranged on one side of the sleeve tube, an oxygen outlet tube is arranged on the other side of the sleeve tube, the sleeve tube is provided with an inner cavity, a flow indicating block is arranged on one side, close to the oxygen inlet tube, in the inner cavity, and an adjusting device is arranged on one side, close to the oxygen outlet tube, in the inner cavity. A spring is arranged between the flow indicating block and the adjusting device; the flow indicating block can slide along the inner cavity of the sleeve pipe, during working, oxygen enters the inner cavity from the oxygen inlet pipe, then passes through the gap between the side face of the flow indicating block and the wall of the inner cavity of the sleeve pipe, flows through the adjusting device and then flows out of the oxygen outlet pipe, and a user judges the oxygen pressure and the airflow condition during oxygen supply by observing the position of the flow indicating block in the inner cylinder. The device adopts a pure mechanical structure, is simple and reliable, convenient to assemble and connect, small in size, light in weight, convenient to maintain and repair, visual in flow display and particularly suitable for being used on a mask oxygen supply pipeline.

The utility model discloses a first-aid oxygen mask, and belongs to the technical field of medical first-aid equipment. The mask comprises a mask body, a sealing air bag and a sealing cover. The mask body is provided with an oxygen pipe connecting pipe and an endoscope through hole, the outer side is fixedly connected with a barrel cover, and an abutting part is arranged inside. The sealing air bag is fixed in the cylinder cover, and the sealing cover is in threaded connection with the cylinder cover and can seal the cylinder cover. The mask innovatively solves the problem that a traditional oxygen mask cannot meet the requirements for oxygen supply and endoscope operation at the same time, the sealing air bag can be effectively sealed in different states, and oxygen leakage is prevented. The flexible supporting sheet of the abutting part plays a supporting and fixing role in different scenes. The integrally-formed structure enhances the strength and reduces the leakage risk, and the transparent material facilitates observation. The medical first-aid kit meets various requirements, improves the operation convenience, provides powerful support for medical first aid, and has wide application prospects.

The utility model discloses a high-flow anus and crissum wound oxygen therapy auxiliary device, which relates to the technical field of wound oxygen therapy recovery and comprises a hemispherical mask and a fixing mechanism, an oxygen supply tube is mounted at the air inlet end of the hemispherical mask, and the oxygen supply tube is mounted on the fixing mechanism; the fixing mechanism comprises a main body box, fixing clamping rods are movably installed at the two ends of the main body box respectively, a traction assembly is installed in the main body box, and the traction assembly is used for achieving the traction effect on the fixing clamping rods. The oxygen mask has the advantages that the stability of the oxygen mask in the using process is improved, the venturi tube is arranged, the oxygen flow rate of the air outlet end is increased through the venturi tube, high-flow oxygen therapy is provided, the oxygen therapy effect is improved, the covering cloth is arranged, the privacy part of a patient can be covered through the covering cloth, and the privacy in the treatment process is improved.

The utility model discloses an aviation oxygen supply mask body matched with a composite valve, which belongs to the technical field of masks and comprises a mask, the mask comprises a mask body, a sound transmission hole and a breathing hole, the sound transmission hole is arranged on the front end face of the mask body, the breathing hole is arranged on the lower side of the front end of the mask body, and the composite valve is arranged on the mask body. The first protective cover is fixedly installed on the lower side of the front end of the breathing hole and arranged at the breathing hole. By means of the mode, an expiration device and an inspiration device of a wearer are integrated, so that maintenance is facilitated.

The utility model discloses a non -invasive breathing machine oxygen mask fixing device, including the elastic mesh cover cap of bottom end is open and is set in the patient's head, the elastic mesh cover cap covers the non -invasive breathing machine oxygen mask of wearing on the inside of patient's face, the utility model discloses a magic tape is fixed on the cooperation of non -invasive breathing machine oxygen mask, realizes the effective fixing of non -invasive breathing machine oxygen mask, and the elastic mesh cover cap has good elasticity and adaptability, ensures that the mask and patient's nose and face are closely attached, effectively prevent the occurrence of the oxygen leakage condition, simultaneously, through the fixed attachment of magic tape, can further enhance the stability of mask, guarantee the pressure in the mask reaches the setting pressure, in addition, the device still is equipped with the sponge pad, and the sponge pad has good softness and buffering, can alleviate the oppression of mask to patient's nose bridge and forehead, increases the wearing comfort degree.

The utility model relates to the technical field of oxygen supply equipment, and discloses a hospital oxygen supply equipment oxygen flow difference monitoring alarm device which comprises a bottom plate, the front end and the rear end of the upper surface of the bottom plate are fixedly connected with a connecting frame and a storage box respectively, and a PLC control panel is arranged on the upper portion of the outer wall of the front end of the connecting frame. When the oxygen supply equipment for the hospital is used, a standby oxygen tank can be conveniently placed in advance through the storage groove, the buckle body and the buckle lock can be conveniently opened by opening the cover plate to take out the oxygen mask, the oxygen tank is opened by clamping the mask connector with the connector and clamping the oxygen output head with the oxygen conveying head, and then the oxygen mask can be taken out. The oxygen tanks, the hoses and the oxygen mask are integrated into the whole oxygen supply equipment, the self-locking universal wheels are conveniently pushed through the push rod to drive the whole oxygen supply equipment to be conveyed, and the oxygen supply equipment can be easily pushed to the side of the patient.

The invention discloses an anti-collapse inflatable oxygen inhalation mask and belongs to the technical field of medical equipment, the anti-collapse inflatable oxygen inhalation mask comprises an inner mask, an air inlet pipe and an air outlet pipe, a sleeve rope is arranged on the inner mask, a sealing cavity is formed in the position, used for making contact with the face of a patient, of the inner mask, an inner cavity of the inner mask is a breathing cavity, and the air inlet pipe is used for conveying oxygen to the sealing cavity and the breathing cavity; the air outlet pipe is communicated with the sealing cavity and the breathing cavity, and valves are arranged on the air inlet pipe and the air outlet pipe. The air pressure in the breathing cavity is larger than that in the hyperbaric oxygen chamber through the air inlet pipe, so that the inner cover can be stably supported, the inner cover is effectively prevented from collapsing and deforming due to pressure extrusion in the chamber, oxygen in the breathing cavity is prevented from leaking, the effective oxygen delivery amount is remarkably increased, and the oxygen delivery efficiency is improved. The waste of medical resources is reduced, the oxygen therapy efficiency of the patient is improved, and a good oxygen therapy effect on the patient is ensured.

The product for which the design is sought is an auxiliary device for fixing an oxygen mask, which prevents the mask from slipping when the user turns over in bed, and also allows the user to check the condition of the nose and mouth inside the mask. The structure of the auxiliary device is a regular mask with the center section cut out, and the oxygen mask is attached to the cut hole. The elastic strings of the cut mask are attached to the user's ears. Double-sided tape is attached to the back of the cut mask, firmly fixing the oxygen mask and the auxiliary device.

The utility model relates to the technical field of medical instruments, in particular to a damping air leakage valve. A damping air leakage valve comprises an upper cover, a lower cover and a main pipeline, an exhaust pipeline and an air supply pipeline are arranged in the main pipeline, and a one-way valve is arranged at the tail end of the air supply pipeline. The exhaust pipeline and the gas supply pipeline are separated through a first baffle and a third baffle; a second baffle is arranged at the tail end of the air supply pipeline, and the one-way valve is arranged on the second baffle. According to the oxygen mask, the exhaust pipeline and the air supply pipeline are arranged in the main pipeline, so that air exhaled by people can be better exhausted, and the situation that the air exhausted by people is blown into the oxygen mask by fresh air without being exhausted in time is avoided.

The invention relates to the field of medical equipment, in particular to a nursing portable oxygen therapy device which comprises an oxygen therapy mechanism and an oxygen mask. The oxygen conveying mechanism communicates with the oxygen mask and is used for conveying oxygen to the oxygen mask; a pressure sensing mechanism used for responding to pressure changes in the oxygen mask is arranged in the oxygen mask, a self-adaptive opening and closing mechanism is arranged on a communication path of the oxygen mask and the oxygen conveying mechanism, and the self-adaptive opening and closing mechanism is used for controlling connection and disconnection between the oxygen mask and the oxygen conveying mechanism based on response information of the pressure sensing mechanism. According to the invention, precious oxygen resources can be almost completely used for effective breathing of a patient, so that the oxygen supply time is prolonged under the same oxygen capacity.

The utility model relates to the technical field of oxygen delivery masks, and discloses an oxygen delivery mask for a universal oxygen supply device, which comprises a mask and an air supply support buckled on the mask, a clamping frame plate is fixedly connected to the connected end face, an inlet pipe bent groove communicated with a pipeline channel is arranged on the clamping frame plate, and the inlet pipe bent groove is communicated with the pipeline channel. One end of the air supply support and a clamping frame plate are fixed to the mask in a buckled mode through a connector, a pipe outlet hole is formed in the middle of the air supply support, two air outlet pipes in the middle of the oxygen conveying pipe penetrate out of the pipe outlet hole, and the left portion and the right portion of the oxygen conveying pipe penetrate through a pipe inlet bent groove to be arranged in the pipeline channel in an interference clamping mode. According to the utility model, the air supply bracket and the oxygen therapy mask are in a split buckle design, so that each part can be conveniently and independently replaced, meanwhile, the air supply bracket can efficiently adapt to a conventional oxygen therapy tube in the market, and the stability of the oxygen therapy tube in the air supply bracket after installation is effectively ensured through a two-end interference buckle installation mode.

The utility model provides a universal fitting oxygen mask for preventing edge air leakage, and relates to the technical field of oxygen masks, the universal fitting oxygen mask comprises a mask body, the rear surface of the mask body is uniformly and fixedly connected with a plurality of fixing columns, the rear surface of the mask body is provided with a contraction assembly, and the inner surface of the mask body is provided with a connecting assembly. When the oxygen mask is used and a patient wears the oxygen mask, the mask body and the rubber soft cushion can be pulled to the face of the patient through the elastic contraction effect of the two elastic pieces, and meanwhile the hollow columns arranged on the rear surface of the mask body slide backwards in the corresponding hollow columns to extrude the corresponding springs. The multiple springs can extrude the corresponding fixing columns under the action of reset elasticity, counter-acting force generated by the multiple springs can drive the rubber cushion to be tightly attached to the face of a patient, gaps are prevented from being generated in the edge of the oxygen mask, and therefore the oxygen conveying effect of the oxygen mask is improved.

The invention relates to a method and system for deflating an oxygen mask. The method for throwing the oxygen mask comprises the steps that the current flight scene S of an aircraft is determined, wherein the flight scene S comprises a ground station-crossing and take-off stage S1, a climbing or cruising stage S2 and a descending and landing stage S3; calculating a cabin height warning value ZCW based on the flight scene S and the cabin height value ZC; judging a jettisoning height threshold value ZD based on the cabin height alarm value ZCW; in any flight scenario, the cabin height value ZC is compared to the jettisoning height threshold ZD, and when the cabin height value ZC is greater than the jettisoning height threshold ZD, the oxygen mask is automatically jettisoned.

The utility model relates to the technical field of rescue equipment, and discloses a snowfield rescue breathing control device which comprises an oxygen mask, an oxygen pipe and an oxygen bottle, a flexible heating film is arranged on the inner surface of the oxygen mask, and a first controller and a GPS positioning module are arranged in the oxygen mask. A collecting shell is further arranged at the bottom of the oxygen mask body, absorption cotton is arranged in the collecting shell, two elastic bands are arranged on the rear side of the oxygen mask body, an oxygen spraying opening is further formed in the outer side of the oxygen mask body, and two micro fans are further arranged on the outer surface of the oxygen mask body. Wherein the two miniature fans are used for air inlet and air outlet respectively. According to the oxygen supply system, multiple anti-freezing design and the flexible solar panel power supply technology are adopted, stable operation of oxygen conveying in the low-temperature environment is guaranteed, meanwhile, long-time endurance is achieved, and compared with the prior art, the problems that an oxygen supply system is insufficient in reliability and endurance are solved.

The oxygen inhalation device for cardiology department nursing comprises a basic humidification module, a temperature control and moisture preservation module, an ultrasonic atomization module, an oxygen inhalation mask, a control module and a respiration monitoring module, the basic humidification module is connected with the temperature control and moisture preservation module, and the control module is arranged on the upper surface of the basic humidification module; the ultrasonic atomization module is detachably connected to the temperature control and moisture preservation module, the temperature control and moisture preservation module is connected with the oxygen inhalation mask through an air pipe, and the control module is in communication connection with the temperature control and moisture preservation module, the oxygen inhalation mask and the respiration monitoring module. According to the invention, the temperature of the nasal cavity is detected in real time, and the temperature of the input oxygen is controlled based on the actual temperature of the nasal cavity, so that more moisture can enter the deep part of the respiratory tract while the comfort is improved.

The utility model discloses a digestive nursing painless endoscope oral cavity supporting oxygen mask in the technical field of oxygen masks, which comprises an oxygen mask, a fixed frame is fixedly arranged on the outer side of the oxygen mask, a movable block is movably arranged on the inner side of the fixed frame, connecting blocks are rotatably arranged on two sides of the movable block, and mounting blocks are rotatably arranged on the outer sides of the two groups of connecting blocks. An arc-shaped block is fixedly arranged on the outer side of the mounting plate, a cleaning sponge is arranged on the outer side of the arc-shaped block, a threaded rod is rotationally arranged on the outer side of the movable block, a knob is fixedly arranged on the portion, located on the outer side of the fixed frame, of the outer side end of the threaded rod, and a collecting box movably sleeves the collecting hopper. By means of the simple installation structure, the catheter can be conveniently limited and fixed, using convenience is improved, meanwhile, mucus on the outer side of the catheter can be cleaned, the situation that the mucus drips on a sickbed or adheres to the hands of medical staff is avoided, work of the medical staff is better facilitated, the practical effect is good, and the practicability is high. The method is worthy of market popularization.

The utility model relates to a portable isolated compressed oxygen self-rescuer which comprises a lower shell, an upper cover, an opening mechanism and a self-rescue mechanism, the self-rescue mechanism is arranged in an inner cavity of the lower shell, the upper cover is arranged at the upper end of the lower shell, buckles are arranged at the front end and the rear end of the lower shell, and the opening mechanism is connected to the buckles in a clamped mode so that the upper cover and the lower shell can be fixed together. The self-rescue mechanism comprises a compressed oxygen bottle, a control valve set, a shifting piece, a pressure gauge, an air supplementing pressure plate, a carbon dioxide adsorption cavity, an oxygen mask and an expiration pipe. According to the underground breathing self-rescuer, the shell is convenient to open, the oxygen valve group is convenient to open, the overall lightweight design is achieved, wearing is convenient, using is easy, operation is easy, the personal safety of underground workers is effectively guaranteed, and the technical problems that according to an existing underground breathing self-rescuer, a shell is inconvenient to open, an oxygen valve group is tedious to open, the overall mass is heavy, wearing is convenient, and using is tedious are solved. Compared with the prior art, the device has good market prospect and development space.

The utility model provides a simple and convenient-to-wear oxygen inhalation mask. The simple and convenient-to-wear oxygen inhalation mask comprises a mask body, the two silica gel air outlet holes are formed in the two sides of the mask body respectively; the aluminum strip is arranged at one end of the top of the cover body; and the joint is fixedly connected to the other end of the top of the cover body. According to the simple and convenient-to-wear oxygen inhalation mask, the aluminum strip, the silica gel air outlet hole, the mask body, the connector and other structures are matched with one another, when the mask is used, the mask body is directly arranged on the face of a patient in a covering mode, then the connector is connected with an oxygen pipe, and the mask can be adjusted according to the outline of the face of the patient by means of the deformable characteristic of the aluminum strip; in this way, the mask is convenient for the patient to wear and convenient and free to wear and use, the overall weight is light, the burden of the patient during wearing is reduced, and the use convenience and comfort of the patient are greatly improved.

The invention provides an inflation head band overall dimension measuring device, and the device comprises a first pedestal which is provided with a first chute; the mounting seat is arranged in the first sliding groove, the mounting seat is used for mounting an oxygen mask to be tested, and the mounting seat can slide along the first sliding groove; the detected oxygen mask comprises an inflation head band; the expansion support is arranged in the first sliding groove, and the expansion support can slide along the first sliding groove; the expansion support is of a T-shaped structure. Scales are arranged on the expansion bracket and the first base; the measuring baffle plate is arranged on the expansion bracket; according to the measuring tool for the inflation head band of the unit oxygen mask, the overall dimension of the inflated inflation head band can be stably measured, and the overall dimension and shape of the inflation head band can be maintained.

This invention provides an adaptive intelligent blood collection chair and its operating method. The chair includes a seat cushion, leg rests, a backrest, an oxygen mask, and a detection module. The detection module collects the physiological characteristics of blood donors seated on the cushion. Based on the real-time physiological characteristic detection results, the chair's posture is adjusted in a coordinated manner. It can achieve differentiated and graded adaptive posture adjustment for two different abnormal physiological conditions: pre-syncope and shock risk. By matching the corresponding backrest tilt angle and leg rest support height, it optimizes the body's blood circulation and progressively strengthens the emergency protection level. Simultaneously, combined with the oxygen mask's adjustment mode, it achieves graded protection effects: pre-positioning for mild cases and immediate oxygen supply for severe cases. The overall movement is smooth, and the reset logic is stable and orderly, effectively improving the donor's ability to cope with sudden physical discomfort during blood donation and significantly enhancing the safety and adaptability of the intelligent blood collection chair.

The invention relates to the technical field of medical respirator maintenance, in particular to a flexible respiration restorer. A breathing air bag is installed on the breathing machine body, a connecting pipe is arranged on the breathing air bag, the connecting pipe is fixedly connected with a breathing pipe body, the breathing pipe body is fixedly connected with a three-way pipe, the three-way pipe is detachably connected with the oxygen mask, and a fixing device and a sputum suction device are arranged on the oxygen mask. The three-way pipe and the adjusting air bag are arranged, oxygen flow division is facilitated, a small part of oxygen enters the adjusting air bag through the third ventilation pipe, the adjusting air bag starts to expand under the air pressure intensity and is tightly attached to the face of a patient, the adjusting air bag is elastic and cannot press the face of the patient, and the wearing comfort of the patient is improved.

An oxygen mask includes a mask body defining a cavity configured to be positioned over a patient's mouth and nose, an oxygen port formed on an upper half portion of the mask body, an annular aperture formed on the mask body, and at least one vent formed on the mask body, wherein each vent is formed on the lower half portion of the mask body in such a manner that gas exhaled by a patient is directed to the vent.

The utility model relates to an oxygen mask, in particular to an anti-tightening injury oxygen mask. The tightening injury prevention oxygen mask comprises an oxygen mask body, adjusting belts, an adjusting mechanism and the like, connecting rods are arranged on the front side and the rear side of the oxygen mask body respectively, binding belts are arranged on the two connecting rods respectively, the left end of the binding belt on the front side is connected with the adjusting mechanism, and the left end of the binding belt on the rear side is connected with the upper adjusting belt and the lower adjusting belt respectively. The other ends of the two adjusting belts are connected with the left end of the adjusting mechanism. Through the design of the adjusting mechanism and the adjusting belts, the oxygen mask can be adjusted by one hand, the use convenience is improved, and a certain area of the back side of the head is prevented from being continuously pressed by adjusting the tightness of the two adjusting belts at the same time.

The invention relates to an oxygen mask for supplying oxygen to a person, which can be modified for use on differently sized faces. The oxygen mask has a holding frame, which has a first cross-brace and a second cross-brace, a substantially gas-impermeable material arranged on the holding frame and which can be stretched between the first cross-brace and the second cross-brace, a headband connected to the holding frame, an exhalation valve arranged on the material and penetrating the material, and an oxygen supply line for providing oxygen to an inside of the oxygen mask, wherein the first cross-brace and the second cross-brace are arranged in two lateral holders, which are opposite each other, wherein at least the first cross-brace is flexible and wherein the distance of the lateral holders to each other is adjustable at least between a first and a second distance.

The high-concentration oxygen mask comprises a mask body, an oxygen storage bottle, a ventilation cover, an oxygen catheter, a connector and an inhaler, the ventilation cover is connected with the mask body, one end of the inhaler is connected with the mask body, the connector is connected with the other end of the inhaler, the other end of the connector is detachably connected with the oxygen catheter, and the oxygen catheter is connected with the connector. The other end of the oxygen conveying pipe is detachably connected with an oxygen storage bottle, the oxygen conveying pipe is provided with an emergency oxygen supply assembly capable of automatically sucking in air when oxygen supply is insufficient, and the oxygen conveying pipe is provided with a safety assembly capable of improving oxygen conveying safety. The emergency oxygen supply assembly is arranged so that the oxygen mask can still supply oxygen to a user by inhaling air when enough oxygen cannot be provided, the user is prevented from being suffocated due to oxygen deficit, the safety assembly is arranged to monitor the pressure of oxygen in the oxygen catheter in real time, and the effect of improving the safety performance when the user uses the oxygen mask is achieved.

The present application relates to an oxygen mask with good sealing performance, comprising an oxygen mask body, an airbag assembly provided at the bottom of the oxygen mask body, the airbag assembly comprising an annular plate and a main airbag, the annular plate being provided with an air nozzle for inflating and deflating the main airbag; a plurality of drawstrings are evenly arranged in the main airbag, one end of each drawstring is connected to the annular plate, and the other end is connected to the inner bottom of the main airbag; after the main airbag is inflated, the distance between the annular plate and the bottom of the main airbag increases, the drawstrings are straightened and pull up the weak part of the main airbag, so that a plurality of suction cups appear on the surface of the outer bottom of the main airbag, thereby adsorbing and fixing the oxygen mask body to the human skin; the oxygen mask of the present invention is easy to use, has good adhesion and sealing, is not likely to cause leakage of anesthetic gas, and can avoid or reduce the use of laryngeal mask.

The utility model relates to an isolation type composite oxygen self-rescuer which comprises a lower shell, an upper cover, an opening mechanism and a composite oxygen self-rescue mechanism, and the self-rescue mechanism comprises a compressed oxygen bottle, a control valve group, a shifting piece, a pressure gauge, an air supplementing pressure plate, a carbon dioxide adsorption cavity, an oxygen mask, an expiration pipe, an upper filter screen, a breathable bottom plate, a threaded plug and an air guide pipe. According to the underground breathing self-rescuer, the shell is convenient to open, the oxygen valve group is convenient to open, oxygen is continuously and stably supplied, the harm of oxygen supply temperature to a human body is effectively reduced, the size is small, the weight is light, and the problems that the shell is inconvenient to open, the oxygen valve group is tedious to open, and a chemical oxygen self-rescuer is low in early-stage concentration; the compressed oxygen self-rescuer filled with a large amount of calcium hydroxide and oxygen is large in capacity and heavy in weight, and compared with the prior art, the compressed oxygen self-rescuer has good market prospects and development space.