A carbon dioxide storage mask

Abstract

This invention discloses a carbon dioxide storage mask, belonging to the field of medical device technology. It includes an oxygen mask body and a storage tube. The oxygen mask body has straps on both sides that can be tied to the patient's head. The oxygen mask body has a recessed design corresponding to the mouth and nose area when worn, creating a mounting platform inside the body for the storage tube to be connected vertically. The mounting platform has an insertion hole matching the outer diameter of the storage tube, which communicates with the inner side of the oxygen mask body. The top end of the storage tube is inserted into the insertion hole. An extension tube is connected to the storage tube for connection to an oxygen supply device. This invention allows for adjustment of the lower storage tube's displacement on the upper storage tube based on the patient's end-tidal carbon dioxide partial pressure, thereby changing the storage tube's capacity for carbon dioxide.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a carbon dioxide storage mask. Background Technology

[0002] Respiratory alkalosis is caused by a rate of carbon dioxide excretion exceeding the rate of carbon dioxide production, leading to hyperventilation, decreased carbon dioxide levels, and a drop in arterial blood oxygen partial pressure. The causes are broadly classified into central and peripheral hyperventilation, primarily manifesting as hyperventilation and rapid breathing. Alkalosis can stimulate neuromuscular function, increasing its excitability. Acute, mild cases may present with numbness and tingling in the lips and extremities, and muscle tremors; severe cases may present with dizziness, syncope, blurred vision, and convulsions. Some patients may also experience chest tightness, chest pain, dry mouth, and abdominal distension. A common characteristic of respiratory alkalosis caused by various factors is hyperventilation.

[0003] For patients with respiratory alkalosis, increasing the amount of carbon dioxide inhaled is used in clinical practice to maintain the carbon dioxide balance in the patient's body. For this treatment method, existing technologies have designed oxygen masks with the function of storing part of the carbon dioxide.

[0004] For example, a carbon dioxide retention oxygen mask with publication number CN203139325U includes a mask body made of medical plastic, which has a plate-shaped triangular three-dimensional structure. The mask body has an oxygen inlet and a carbon dioxide outlet. The carbon dioxide outlet is located in the middle of the mask body and a carbon dioxide outlet tube is installed on it. The length and diameter of the carbon dioxide outlet tube can be adjusted according to actual conditions to adjust the retention time of exhaled gas to adapt to different patient conditions. The oxygen inlet is located on either side of the mask body and an oxygen inlet tube is installed on it.

[0005] While this patented technology can improve respiratory alkalosis symptoms by storing exhaled carbon dioxide within the mask for re-inhalation, the amount of carbon dioxide exhaled by the patient varies after partial carbon dioxide inhalation therapy. Furthermore, the required amount of carbon dioxide varies between patients due to changes in their condition. Therefore, the carbon dioxide exhaust tube in this patented technology is a fixed structure, which cannot adjust the amount of carbon dioxide stored in the oxygen mask in real time according to changes in the amount of carbon dioxide exhaled by the patient. Consequently, patients with respiratory alkalosis do not receive effective treatment when using carbon dioxide storage oxygen masks. Summary of the Invention

[0006] This invention provides a carbon dioxide storage mask to solve the aforementioned technical problems.

[0007] The present invention adopts the following technical solution: it includes an oxygen mask body and a storage tube. The oxygen mask body can be worn over the patient's mouth and nose and can cover the patient's mouth and nose. The sides of the oxygen mask body are connected to straps that can be tied to the patient's head. The oxygen mask body is designed with a recessed shape corresponding to the mouth and nose area of ​​the human body when wearing it, so that the interior of the oxygen mask body forms a mounting platform for the storage tube to be connected in a vertical state. The mounting platform is provided with an insertion hole that matches the outer diameter of the storage tube. The insertion hole is connected to the inner side of the oxygen mask body. The storage tube is set vertically on the outer side of the oxygen mask body, and the top end of the storage tube is inserted into the insertion hole. An extension tube that can be connected to the oxygen tube of an oxygen supply device is provided on the storage tube.

[0008] Furthermore, the storage tube includes an upper gas storage tube and a lower gas storage tube, and both the upper and lower gas storage tubes are provided with through holes inside;

[0009] The upper gas storage tube has a through hole that extends through both ends, forming a tubular structure. The lower gas storage tube has a through hole that extends only through its top end. The inner diameter of the through hole in the lower gas storage tube matches the outer diameter of the upper gas storage tube. The through hole of the lower gas storage tube is fitted onto the upper gas storage tube, and the lower gas storage tube can move on the upper gas storage tube.

[0010] Furthermore, the bottom end of the lower gas storage pipe is provided with multiple air vents, all of which are arc-shaped and are arranged at equal intervals around the center of the bottom end of the lower gas storage pipe.

[0011] Furthermore, a miniature electric cylinder with a linear running trajectory is provided on the upper air storage pipe. The miniature electric cylinder is fixedly sleeved on the outer wall of the upper air storage pipe by a matching limiting bracket. The output end of the miniature electric cylinder is oriented towards the lower air storage pipe. A push block is fixedly provided on the output end of the miniature electric cylinder. The push block is fixedly connected to the outer wall of the lower air storage pipe. The operation of the output end of the miniature electric cylinder can drive the push block to drive the lower air storage pipe to perform telescopic displacement in a sleeved state on the upper air storage pipe.

[0012] Furthermore, it also includes an end-tidal carbon dioxide analyzer. An air tube is provided on the mounting platform of the oxygen mask body. One end of the air tube is connected to the interior of the oxygen mask body and the other end is connected to the detection port of the end-tidal carbon dioxide analyzer. Both the end-tidal carbon dioxide analyzer and the miniature electric cylinder are controlled by a control unit.

[0013] Furthermore, a cover is fitted onto the lower gas storage pipe near the bottom. The cover can rotate while being fitted onto the outer wall of the lower gas storage pipe. The bottom of the cover is provided with multiple ventilation grooves, and the number and position of the ventilation grooves at the bottom of the cover and the bottom of the lower gas storage pipe are the same. Anti-slip texture is provided on the outer wall of the cover.

[0014] Furthermore, the inner wall of the insertion hole on the mounting platform is provided with a threaded groove, and the outer wall of the insertion hole at the top of the upper gas storage pipe is provided with a thread that matches the threaded groove.

[0015] Furthermore, the oxygen mask body is provided with multiple placement holes corresponding to the patient's nose, and each placement hole is provided with a one-way exhaust valve.

[0016] Furthermore, each of the one-way exhaust valves includes an exhaust plate and a baffle. The exhaust plate is disposed at the mounting hole on the oxygen mask body. Both the exhaust plate and the baffle are the same size as the mounting hole. The exhaust plate has multiple exhaust holes around its center. The baffle is made of thin, flexible silicone material. The baffle is disposed on the exhaust plate and faces the inside of the oxygen mask body. A support rod is disposed at the center of the exhaust plate. One end of the support rod is fixedly connected to the exhaust plate, and the other end passes through the center of the baffle. A stop block larger than the outer diameter of the support rod is fixedly disposed at the end of the support rod that passes through the baffle, so that the baffle will not fall off the support rod.

[0017] Furthermore, the outer wall of the exhaust plate is provided with a silicone coating.

[0018] The above-described at least one technical solution adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0019] Firstly, since patients with respiratory alkalosis need to increase their carbon dioxide intake to maintain carbon dioxide balance in the body, the lower gas storage tube can be adjusted on the upper gas storage tube according to the partial pressure of carbon dioxide at the end of expiration, thereby changing the space that the storage tube can hold for carbon dioxide.

[0020] Secondly, in this invention, the storage tube is composed of two parts: an upper storage tube and a lower storage tube. This allows the storage capacity of the storage tube to be adjusted. Simultaneously, based on the end-tidal carbon dioxide analyzer's detection and analysis of the patient's exhaled gas, in patients with low end-tidal carbon dioxide partial pressure during initial treatment, the end-tidal carbon dioxide analyzer transmits the partial pressure value to the control unit. The control unit then sends an operating command to the micro-electric cylinder, causing the output end of the micro-electric cylinder to extend outward, thereby driving the push block and the lower storage tube to move synchronously. This increases the carbon dioxide capacity of the upper and lower storage tubes, allowing the patient to inhale a larger amount of carbon dioxide during the next inhalation, combined with oxygen for a period of treatment.

[0021] Thirdly, if the end-tidal carbon dioxide analyzer detects an increase in the patient's end-tidal carbon dioxide partial pressure, the control unit can send an operating command to the micro-electric cylinder, causing the output end of the micro-electric cylinder to operate. This reduces the carbon dioxide capacity of the upper and lower reservoirs. The carbon dioxide exhaled by the patient will be discharged into the oxygen mask body and the reservoir tube, while the carbon dioxide exceeding the capacity of the oxygen mask body and the reservoir tube will be discharged from multiple ventilation slots at the bottom of the lower reservoir tube. As the carbon dioxide capacity in the oxygen mask body and the reservoir tube decreases, the amount of carbon dioxide that the patient can inhale during inhalation will also decrease, thus making it suitable for patients with an increase in end-tidal carbon dioxide partial pressure.

[0022] Fourth, in this invention, a cover is fitted onto the part of the lower gas storage pipe near the bottom. By rotating the cover, the corresponding positions of multiple venting grooves on the cover and multiple venting grooves at the bottom of the lower gas storage pipe are changed, thereby changing the gas emission speed of the venting grooves at the bottom of the lower gas storage pipe.

[0023] Fifth, when this invention is used clinically as an oxygen mask for storing carbon dioxide, the installation method of each one-way exhaust valve and the disassembly and assembly state of the storage tube can be changed to provide more usage methods in addition to being used as an oxygen mask for storing carbon dioxide. This allows patients at different stages of end-tidal carbon dioxide partial pressure to use it, making the entire mask more widely applicable. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0027] Figure 3 This is a schematic diagram of the inner side of the oxygen mask body in this invention;

[0028] Figure 4 This is a schematic diagram of the bottom of the oxygen mask body in this invention;

[0029] Figure 5 This is a schematic diagram showing the disassembly of the storage tube in this invention;

[0030] Figure 6 This is a schematic diagram of the storage tube and the miniature electric cylinder in this invention;

[0031] Figure 7 This is a schematic diagram showing the disassembly of the lower gas storage pipe and the cover in this invention. Figure 1 ;

[0032] Figure 8 This is a schematic diagram showing the disassembly of the lower gas storage pipe and the cover in this invention. Figure 2 ;

[0033] Figure 9 This is a cross-sectional view of the one-way exhaust valve in this invention.

[0034] Figure Labels

[0035] Oxygen mask body 1, mounting platform 11, insertion hole 12, storage tube 2, upper gas storage tube 21, lower gas storage tube 22, through hole 23, ventilation groove 24, cover 25, thread 26, extension tube 3, miniature electric cylinder 4, limit bracket 41, push block 42, end-tidal carbon dioxide analyzer 5, air tube 51, one-way exhaust valve 6, exhaust plate 61, baffle 62, exhaust hole 63, support rod 64, stop block 65. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] This invention provides a carbon dioxide storage mask, including an oxygen inhalation mask body 1 and a storage tube 2;

[0039] See attached document Figures 1 to 4 As shown, the oxygen mask body 1 can be worn over the patient's mouth and nose and can cover the patient's mouth and nose 25. The oxygen mask body 1 has straps on both sides that can be tied to the patient's head. The oxygen mask body 1 has a recessed design corresponding to the mouth and nose area of ​​the human body when wearing it, so that the interior of the oxygen mask body 1 forms a mounting platform 11 for the storage tube 2 to be connected in a vertical state. The mounting platform 11 is provided with an insertion hole 12 that matches the outer diameter of the storage tube 2. The insertion hole 12 is connected to the inner side of the oxygen mask body 1. The storage tube 2 is set in a vertical state on the outer side of the oxygen mask body 1, and the top end of the storage tube 2 is inserted into the insertion hole 12. An extension tube 3 is connected to the storage tube 2 and can be connected to the oxygen tube of the oxygen supply equipment.

[0040] Preferred options are shown in the appendix. Figures 5 to 8As shown, the storage tube 2 includes an upper gas storage tube 21 and a lower gas storage tube 22, and both the upper gas storage tube 21 and the lower gas storage tube 22 are provided with through holes 23.

[0041] The upper gas storage pipe 21 has a through hole 23 that extends through both ends, forming a tubular structure. The lower gas storage pipe 22 has a through hole 23 that extends only through its top end. The inner diameter of the through hole 23 in the lower gas storage pipe 22 matches the outer diameter of the upper gas storage pipe 21. The through hole 23 of the lower gas storage pipe 22 is fitted onto the upper gas storage pipe 21, and the lower gas storage pipe 22 can move on the upper gas storage pipe 21. The bottom end of the lower gas storage pipe 22 is provided with multiple air vents 24, all of which are arc-shaped and are equidistantly arranged around the center of the bottom end of the lower gas storage pipe 22.

[0042] The oxygen mask body 1 can be worn over the patient's mouth and nose for use as an oxygen supply mask. The storage tube 2 on the outside of the oxygen mask body 1 can expand the space between the inside of the oxygen mask body 1 and the patient's mouth and nose. When the patient exhales, the exhaled carbon dioxide will collect in the oxygen mask body 1 and the storage tube 2. The storage tube 2, which consists of an upper storage tube 21 and a lower storage tube 22, can be adjusted to change its usable length, thereby changing the space that the storage tube 2 can hold for carbon dioxide. When the patient exhales, the carbon dioxide exceeding the storage capacity of the oxygen mask body 1 and the storage tube 2 will be slowly released outward from the multiple ventilation slots 24 at the bottom of the lower storage tube 22.

[0043] When the oxygen supply equipment delivers oxygen to the storage tube 2 through the oxygen tube, the oxygen will be discharged from the storage tube 2 into the oxygen mask body 1 for the patient to inhale. At the same time, the carbon dioxide stored in the oxygen mask body 1 will be inhaled by the patient along with the oxygen delivered by the oxygen supply equipment. Since patients with respiratory alkalosis need to increase the amount of carbon dioxide inhaled in clinical practice to maintain the carbon dioxide balance in the patient's body, the storage tube 2 can work with the oxygen mask body 1 to increase the storage of carbon dioxide, thereby increasing the amount of carbon dioxide inhaled by the patient.

[0044] In practical applications, the lower gas storage tube 22 can be adjusted on the upper gas storage tube 21 according to the partial pressure of carbon dioxide at the end of the patient's expiration, thereby changing the space that the storage tube 2 can hold for carbon dioxide.

[0045] Preferred options are shown in the appendix. Figure 6 As shown, a miniature electric cylinder 4 with a linear running trajectory is provided on the upper gas storage pipe 21. The miniature electric cylinder 4 is fixedly sleeved on the outer wall of the upper gas storage pipe 21 by a matching limiting bracket 41.

[0046] The output end of the micro electric cylinder 4 is arranged towards the lower air storage pipe 22. A push block 42 is fixedly installed on the output end of the micro electric cylinder 4. The push block 42 is fixedly connected to the outer wall of the lower air storage pipe 22. The operation of the output end of the micro electric cylinder 4 can drive the push block 42 to drive the lower air storage pipe 22 to perform telescopic displacement in a sleeved state on the upper air storage pipe 21.

[0047] See attached document Figures 1 to 3 As shown, it also includes an end-tidal carbon dioxide analyzer 5. An air tube 51 is provided on the mounting platform 11 of the oxygen mask body 1. One end of the air tube 51 is connected to the interior of the oxygen mask body 1 and the other end is connected to the detection port of the end-tidal carbon dioxide analyzer 5. The end-tidal carbon dioxide analyzer 5 and the miniature electric cylinder 4 are both controlled by a control unit.

[0048] In clinical practice, treatment for respiratory alkalosis is often delayed. In severe cases, it can lead to altered consciousness and convulsions. These patients often present with difficulty breathing, labored and rapid breathing, numbness or abnormal sensation in the extremities, face, and lips. Therefore, timely and effective intervention is crucial for the treatment of this disease. This is also a key focus for clinicians, especially emergency medicine medical staff. Inhalation of oxygen containing a certain amount of carbon dioxide can increase the partial pressure of oxygen in arterial blood and stimulate the respiratory center.

[0049] However, in actual application, the patient's symptoms will not be relieved when inhaling oxygen containing a certain amount of carbon dioxide in the initial stage. However, as time goes by, the partial pressure of carbon dioxide at the end of the patient's expiration will gradually increase. Therefore, the amount of carbon dioxide contained in the oxygen given to the patient should also be reduced to avoid breathing difficulties and other discomfort caused by inhaling too much oxygen containing carbon dioxide after the partial pressure of carbon dioxide at the end of the patient's expiration increases. However, it is difficult for medical staff to manually operate the storage tube 2 to change the carbon dioxide capacity in real time according to the partial pressure of carbon dioxide at the end of the patient's expiration.

[0050] The fixed carbon dioxide discharge tube in the carbon dioxide storage oxygen mask of CN203139325U obviously cannot meet the needs of patients with varying carbon dioxide partial pressure at the end of expiration. The fixed carbon dioxide discharge tube will limit the amount of carbon dioxide stored in the patient's exhaled breath by the mask body and the carbon dioxide discharge tube.

[0051] Therefore, in this invention, the storage tube 2 is composed of two parts: an upper storage tube 21 and a lower storage tube 22. This allows the storage capacity of the storage tube 2 to be adjusted. Simultaneously, a miniature electric cylinder 4 is installed on the upper storage tube 21. In practical applications, control commands can be set for the control unit, allowing the miniature electric cylinder 4 to detect and analyze the patient's exhaled gas according to the end-tidal carbon dioxide analyzer 5. When a patient with low end-tidal carbon dioxide partial pressure receives initial treatment, the exhaled carbon dioxide will collect in the oxygen mask body 1 and the storage tube 2. Subsequently, during inhalation, oxygen containing some carbon dioxide will be inhaled. During the patient's second exhalation, the end-tidal carbon dioxide partial pressure... The carbon dioxide analyzer 5 combines the amount of carbon dioxide in the oxygen mask body 1 and the storage tube 2 with the amount of carbon dioxide exhaled by the patient for analysis. If the patient's end-tidal carbon dioxide partial pressure is low, the end-tidal carbon dioxide analyzer 5 will transmit the partial pressure value to the control unit, and the control unit will send an operating command to the micro electric cylinder 4, so that the output end of the micro electric cylinder 4 extends outward to drive the push block 42 and the lower air storage tube 22 to move synchronously, so that the upper air storage tube 21 and the lower air storage tube 22 can increase the carbon dioxide capacity, and allow the patient to inhale more carbon dioxide during the next inhalation, and combine it with oxygen for a period of time for treatment.

[0052] During this period, if the end-tidal carbon dioxide analyzer 5 detects an increase in the patient's end-tidal carbon dioxide partial pressure, the control unit will send an operating command to the micro electric cylinder 4, causing the output end of the micro electric cylinder 4 to retract a certain distance, thereby driving the push block 42 and the lower air storage tube 22 to move in the opposite direction a certain distance, so that the capacity of the upper air storage tube 21 and the lower air storage tube 22 to hold carbon dioxide is reduced. When the patient exhales, the exhaled carbon dioxide will be discharged into the oxygen mask body 1 and the storage tube 2, while the carbon dioxide exceeding the capacity of the oxygen mask body 1 and the storage tube 2 will be discharged from the multiple ventilation slots 24 at the bottom of the lower air storage tube 22. As the carbon dioxide capacity in the oxygen mask body 1 and the storage tube 2 decreases, the amount of carbon dioxide that the patient can inhale when inhaling will also decrease, thus making it suitable for patients with an increase in end-tidal carbon dioxide partial pressure.

[0053] Secondly, since each patient's condition is different, their end-tidal carbon dioxide partial pressure will also vary and will not gradually increase. Therefore, the control unit in this invention can combine the end-tidal carbon dioxide analyzer 5 to issue different operating commands to the miniature electric cylinder 4 based on the patient's end-tidal carbon dioxide partial pressure. This allows the miniature electric cylinder 4 to control the displacement distance of the lower gas storage tube 22 according to the patient's actual situation, thereby changing the real-time change in the amount of carbon dioxide that the storage tube 2 can hold. This makes the entire mask suitable for clinical medical use, providing better treatment conditions for patients with respiratory alkalosis.

[0054] Preferred options are shown in the appendix. Figure 7 and 8 As shown, a cover 25 is fitted onto the lower gas storage pipe 22 near the bottom. The cover 25 can rotate in a fitted state on the outer wall of the lower gas storage pipe 22. The bottom of the cover 25 is provided with multiple ventilation grooves 24, and the number and position of the multiple ventilation grooves 24 at the bottom of the cover 25 and the bottom of the lower gas storage pipe 22 are the same. Anti-slip texture is provided on the outer wall of the cover 25.

[0055] In practical applications, the corresponding positions of the multiple ventilation slots 24 on the cover 25 and the multiple ventilation slots 24 at the bottom of the lower air storage tube 22 can be changed by rotating the cover 25, thereby changing the gas emission speed of the ventilation slots 24 at the bottom of the lower air storage tube 22. The anti-slip texture on the outer wall of the cover 25 can increase the friction when medical staff manually operate the outer wall of the cover 25, so as to make more stable micro-rotation adjustment of the cover 25. During operation, if the multiple ventilation slots 24 at the bottom of the cover 25 correspond perfectly with the multiple ventilation slots 24 at the bottom of the lower air storage tube 22, the multiple ventilation slots 24 at the bottom of the lower air storage tube 22 are in the maximum open state. When the patient exhales, the excess carbon dioxide in the oxygen mask body 1 and the storage tube 2 can be discharged from the multiple ventilation slots 24 at the bottom of the lower air storage tube 22 at the maximum emission speed.

[0056] If the multiple ventilation slots 24 at the bottom of the mask 25 are misaligned with the multiple ventilation slots 24 at the bottom of the lower air reservoir 22, the part of the mask 25 without ventilation slots 24 will block and cover the ventilation slots 24 at the bottom of the lower air reservoir 22 to a certain extent. This reduces the space for carbon dioxide to be released from the multiple ventilation slots 24 at the bottom of the lower air reservoir 22, thereby reducing the carbon dioxide release rate. This allows the entire mask to be adjusted to a more detailed treatment plan according to the patient's condition, allowing patients with low end-tidal carbon dioxide partial pressure to inhale more carbon dioxide.

[0057] Preferred options are shown in the appendix. Figure 5 As shown, the inner wall of the insertion hole 12 on the mounting platform 11 is provided with a threaded groove 26, and the outer wall of the upper gas storage pipe 21 that can be inserted into the insertion hole 12 is provided with a thread 26 that matches the threaded groove 26.

[0058] When installing the storage tube 2, the top end of the upper gas storage tube 21 in the storage tube 2 can be inserted along the insertion hole 12 on the mounting platform 11 and rotated so that the thread 26 at the top end of the upper gas storage tube 21 and the insertion hole 12 form a thread 26 engagement, thereby completing the installation connection between the storage tube 2 and the oxygen mask body 1, so that the oxygen mask body 1 and the storage tube 2 are detachable structures, so as to facilitate disinfection and cleaning before and after use;

[0059] Meanwhile, the present invention can prepare various specifications for the length and diameter of the upper gas storage tube 21 and the lower gas storage tube 22 in the storage tube 2, so as to be suitable for patients with greater variations in end-tidal carbon dioxide partial pressure in clinical practice. This makes it easier to install and store the oxygen on the oxygen mask body 1 without disassembling the oxygen mask and in the state of oxygen deprivation, thereby avoiding discomfort symptoms caused by the patient being in a state of oxygen deprivation.

[0060] Preferred options are shown in the appendix. Figures 1 to 3 As shown, the oxygen mask body 1 has multiple placement holes corresponding to the patient's nose, and each placement hole is equipped with a one-way exhaust valve 6;

[0061] See attached document Figure 9 As shown, each of the one-way exhaust valves 6 includes an exhaust plate 61 and a baffle 62. The exhaust plate 61 is disposed at the mounting hole on the oxygen mask body 1. The exhaust plate 61 and the baffle 62 are the same size as the mounting hole. The exhaust plate 61 has multiple exhaust holes 63 arranged around its center. The baffle 62 is made of thin and flexible silicone material. The baffle 62 is disposed on the exhaust plate 61 and faces the inside of the oxygen mask body 1. A support rod 64 is disposed at the center of the exhaust plate 61. One end of the support rod 64 is fixedly connected to the exhaust plate 61 and the other end passes through the center of the baffle 62. A stop block 65 larger than the outer diameter of the support rod 64 is fixedly disposed at the end of the support rod 64 that passes through the baffle 62, so that the baffle 62 will not fall off the support rod 64.

[0062] When used clinically as an oxygen mask for carbon dioxide storage, each placement hole of this invention needs to be sealed. Each one-way exhaust valve 6 can be disassembled and installed at the corresponding placement hole on the oxygen mask body 1. This allows the entire mask to provide more usage options besides being used as an oxygen mask for carbon dioxide storage.

[0063] This invention is suitable for patients whose end-tidal carbon dioxide partial pressure is close to the normal value of 30-45 mmHg. The operation method is as follows: Install all the exhaust plates 61 on the mounting holes of the oxygen mask body 1, with the exhaust plates 61 facing the inside of the oxygen mask body 1, and the baffle 62 on the outside of the oxygen mask body 1. Then adjust the lower gas storage tube 22 to be closest to the top of the upper gas storage tube 21, so that the storage tube 2 stores the minimum amount of carbon dioxide. Rotate the cover 25 so that the part of the cover 25 with the ventilation grooves 24 completely blocks the multiple ventilation grooves 24 at the bottom of the lower gas storage tube 22. During use, the oxygen supply equipment supplies oxygen normally, and the patient inhales... When inhaling oxygen, the patient exhales, allowing the exhaled carbon dioxide to be discharged into the oxygen mask body 1. Excess carbon dioxide is then expelled by the patient's exhaled airflow through multiple exhaust holes 63 on the exhaust plate 61 and impacts the baffle 62. Since the baffle 62 is made of thin, flexible silicone, the airflow impacts the baffle 62 covering the exhaust holes 63 on the exhaust plate 61, causing the baffle 62 to deform outwards from the oxygen mask body 1. The stop block 65 on the support rod 64 blocks the baffle 62, preventing it from falling off the exhaust plate 61. This exposes the multiple exhaust holes 63 on the exhaust plate 61 and allows carbon dioxide to be discharged from the oxygen mask body 1.

[0064] When the patient's end-tidal carbon dioxide partial pressure is within the normal range of 30-45 mmHg, this invention can be used as a routine oxygen mask. The operating method is as follows: remove the entire storage tube 2 and seal the insertion hole 12 on the oxygen mask body. Install all the exhaust plates 61 on the mounting holes of the oxygen mask body 1, with the exhaust plates 61 facing the inside of the oxygen mask body 1, while the baffle 62 is located on the outside of the oxygen mask body 1. During use, since there is no storage tube 2 on the oxygen mask body 1, the oxygen mask body 1 can hold the normal capacity of the carbon dioxide exhaled by the patient.

[0065] When the patient's end-tidal carbon dioxide partial pressure is close to the normal value of 30-45 mmHg, but the patient needs to perform breathing exercises, this invention can be used as an exercise mask. The operation method is as follows: without removing the storage tube 2, rotate the cover 25 so that the cover 25 completely blocks the multiple air vents 24 at the bottom of the lower air storage tube 22.

[0066] In this invention, taking two one-way exhaust valves 6 as an example, one exhaust plate 61 is installed on the mounting hole of the oxygen mask body 1, with the exhaust plate 61 facing the outside of the oxygen mask body 1, and the baffle 62 located on the inside of the oxygen mask body 1; the other exhaust plate 61 is installed on another corresponding mounting hole of the oxygen mask body 1, facing the inside of the oxygen mask body 1, and the baffle 62 is located on the outside of the oxygen mask body 1. That is, the two one-way exhaust valves 6 are installed in opposite directions on the oxygen mask body 1. When the oxygen supply equipment is switched to the off state, that is, the oxygen supply equipment does not supply oxygen, during use, when the patient inhales, outside air will enter the oxygen mask body 1 through multiple exhaust holes 63 on the exhaust plate 61 facing the outside of the oxygen mask body 1. Since the baffle 62 is located on the inside of the oxygen mask body 1, when the patient inhales, the negative air... The compressed airflow causes the baffle 62 to deform inward, allowing outside air to enter the oxygen mask body for the patient to inhale. During exhalation, the exhaled carbon dioxide is discharged from the oxygen mask body 1 through multiple exhaust holes 63 on the exhaust plate 61 facing inward. Since the baffle 62 is located on the outside of the oxygen mask body, when the patient inhales, outside air enters the oxygen mask body 1 through multiple exhaust holes 63 on the exhaust plate 61 facing outward and the baffle 62, allowing the patient to practice spontaneous breathing while wearing the mask. To prevent the patient from experiencing breathing difficulties during the exercise, the oxygen mask body 1 must always be worn over the patient's mouth and nose so that medical staff can turn on the oxygen supply equipment at any time to supply oxygen to the inside of the oxygen mask body 1, so as to avoid accidents caused by the patient's inability to breathe spontaneously.

[0067] Preferably, the outer wall of the exhaust plate 61 is provided with a silicone coating;

[0068] When the exhaust plate 61 is installed into the mounting hole from the inside or outside of the oxygen mask body 1, the silicone coating on the outer wall of the exhaust plate 61 can increase the friction between the outer wall of the exhaust plate 61 and the inner wall of the mounting hole of the oxygen mask body 1, so that the exhaust plate 61 can be installed into the mounting hole on the oxygen mask body 1 and will not fall off the mounting hole due to the influence of the patient's breathing airflow.

[0069] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A carbon dioxide storage mask, characterized in that, Includes the oxygen mask body (1) and the storage tube (2); The oxygen mask body (1) can be worn on the patient's mouth and nose and can cover the patient's mouth and nose (25). The oxygen mask body (1) has straps on both sides that can be tied to the patient's head. The oxygen mask body (1) has a recessed design corresponding to the mouth and nose area of ​​the human body when wearing it, so that the interior of the oxygen mask body (1) has a mounting platform (11) for the storage tube (2) to be connected in a vertical state. The placement platform (11) is provided with an insertion hole (12) that matches the outer diameter of the storage tube (2), and the insertion hole (12) is connected to the inner side of the oxygen mask body (1). The storage tube (2) is vertically positioned on the outside of the oxygen mask body (1), and the top end of the storage tube (2) is inserted into the socket (12). An extension pipe (3) is provided on the storage pipe (2) and can be connected to the oxygen pipe of the oxygen supply equipment. The storage tube (2) includes an upper gas storage tube (21) and a lower gas storage tube (22), and both the upper gas storage tube (21) and the lower gas storage tube (22) are provided with through holes (23). The through hole (23) inside the upper gas storage pipe (21) penetrates both ends of itself, making the upper gas storage pipe (21) form a tubular structure; The through hole (23) inside the lower gas storage pipe (22) only penetrates its own top part; The inner diameter of the through hole (23) inside the lower gas storage pipe (22) matches the outer diameter of the upper gas storage pipe (21). The through hole (23) of the lower gas storage pipe (22) is sleeved on the upper gas storage pipe (21), and the lower gas storage pipe (22) can move on the upper gas storage pipe (21); the upper gas storage pipe (21) is provided with a miniature electric cylinder (4) with a linear running trajectory at the output end, and the miniature electric cylinder (4) is fixedly sleeved on the outer wall of the upper gas storage pipe (21) by a matching limiting bracket (41); The output end of the micro electric cylinder (4) is arranged facing the lower gas storage pipe (22). A push block (42) is fixedly installed on the output end of the micro electric cylinder (4). The push block (42) is fixedly connected to the outer wall of the lower gas storage pipe (22). The operation of the output end of the micro electric cylinder (4) can drive the push block (42) to drive the lower gas storage pipe (22) to perform telescopic displacement in a sleeved state on the upper gas storage pipe (21). A cover (25) is sleeved on the lower gas storage pipe (22) near the bottom. The cover (25) can rotate in a sleeved state on the outer wall of the lower gas storage pipe (22). The bottom of the cover (25) is provided with multiple ventilation slots (24), and the number and position of the multiple ventilation slots (24) at the bottom of the cover (25) and the bottom of the lower gas storage pipe (22) are the same. The outer wall of the cover (25) is provided with anti-slip texture.

2. A carbon dioxide storage mask according to claim 1, characterized in that, All of the above-mentioned air vents (24) are arc-shaped, and the multiple air vents (24) are arranged at equal intervals around the center of the bottom end of the lower air storage pipe (22).

3. A carbon dioxide storage mask according to claim 1, characterized in that, It also includes an end-tidal carbon dioxide analyzer (5), and a trachea (51) is provided on the mounting platform (11) of the oxygen mask body (1). One end of the trachea (51) is connected to the interior of the oxygen mask body (1) and the other end is connected to the detection port of the end-tidal carbon dioxide analyzer (5). Both the end-tidal carbon dioxide analyzer (5) and the miniature electric cylinder (4) are controlled by a control unit.

4. A carbon dioxide storage mask according to claim 1, characterized in that, The inner wall of the insertion hole (12) on the mounting platform (11) is provided with a threaded (26) groove, and the outer wall of the upper gas storage pipe (21) that can be inserted into the insertion hole (12) is provided with a thread (26) that matches the threaded (26) groove.

5. A carbon dioxide storage mask according to claim 1, characterized in that, The oxygen mask body (1) has multiple placement holes corresponding to the patient's nose, and each placement hole is equipped with a one-way exhaust valve (6).

6. A carbon dioxide storage mask according to claim 5, characterized in that, Each of the one-way exhaust valves (6) includes an exhaust plate (61) and a baffle (62). The exhaust plate (61) is located at the mounting hole on the oxygen mask body (1), and both the exhaust plate (61) and the baffle (62) are the same size as the mounting hole. The exhaust plate (61) has multiple exhaust holes (63) arranged around its center. The baffle (62) is made of thin and flexible silicone material. The baffle (62) is set on the exhaust plate (61) and faces the inside of the oxygen inhalation mask body (1). A support rod (64) is provided at the center of the exhaust plate (61). One end of the support rod (64) is fixedly connected to the exhaust plate (61), and the other end passes through the center of the baffle (62). A stop block (65) larger than the outer diameter of the support rod (64) is fixedly provided at the end of the support rod (64) that passes through the baffle (62), so that the baffle (62) will not fall off the support rod (64).

7. A carbon dioxide storage mask according to claim 6, characterized in that, The outer wall of the exhaust plate (61) is provided with a silicone coating.

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