Breathing mask for anesthesiology department

Abstract

The invention discloses an anesthesiology department breathing mask which comprises a breathing mask body 1, the middle of the breathing mask body 1 protrudes outwards to form a cylindrical mask body 2, a through hole is formed in the middle of the mask body 2, and a tooth cushion pipe 3 capable of being in sealing sliding fit with the mask body 2 is arranged in the mask body 2. An expiration pipe 4 parallel to the tooth cushion pipe 3 is arranged on one side of the tooth cushion pipe 3, the end of the expiration pipe 4 extends out of the breathing mask 1 to be in butt joint with a one-way valve, and the one-way valve is of a one-way structure capable of expiration towards the outside of the breathing mask 1 as a whole. The device is simple in structure and convenient to operate, seamless switching between oxygen supply and anesthetic gas in the inhalation anesthesia process can be effectively achieved, a corresponding mask does not need to be replaced, the operation flexibility in the operation process is improved, two independent channels are adopted for gas supply and expiration, inhalation of nitric oxide is avoided, and the operation efficiency is improved. And the phenomenon that exhaled air is condensed in the mask can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, specifically to an anesthesia breathing mask. Background Technology

[0002] Anesthesia masks are medical emergency equipment used in conjunction with anesthesia machines and ventilators to deliver gas. They are primarily used in hypoxic environments, such as during breathing difficulties or anesthesia procedures, and are commonly used medical devices in operating rooms. Currently, anesthesia masks used clinically for general anesthesia induction and emergency resuscitation include the mask body, an air inlet at the top of the mask body, and a ring-shaped sealed airbag at the bottom of the mask body. Typically, after gas anesthesia is administered, patients under general anesthesia often have difficulty breathing independently, necessitating oxygen supply. Doctors usually remove the anesthesia mask and replace it with an oxygen mask to continue oxygen delivery. However, this is cumbersome and adds unnecessary workload for doctors. Furthermore, after a period of use, exhaled moisture from conventional oxygen masks condenses on their inner surface. These condensed droplets can drip onto the patient's face, and in severe cases, may enter the trachea through the respiratory tract, posing a risk to the patient's life. Summary of the Invention

[0003] The purpose of this invention is to provide an anesthesiology breathing mask that can effectively solve the problems existing in the background art.

[0004] To address the problems existing in the background art, it includes a breathing mask 1, with a cylindrical cover 2 protruding outward from the middle of the breathing mask 1. A through hole is opened in the middle of the cover 2, and a bite pad tube 3 is provided inside the cover 2, which can be slidably sealed with it. An exhalation tube 4 is provided on one side of the bite pad tube 3, which is parallel to it. The end of the exhalation tube 4 extends out of the breathing mask 1 and connects with a one-way valve. The one-way valve is a one-way structure that allows air to be exhaled to the outside of the breathing mask 1. The cover 2 has a conversion chamber 9 inside, and a conversion column 8 that can be sealed and rotated to fit against its inner wall. The conversion chamber 9 has two oxygen pipe connectors 10 and anesthetic gas connectors 11 that communicate with its interior. The oxygen pipe connectors 10 and anesthetic gas connectors 11 are arranged at right angles. The top of the conversion column 8 has a column shaft that can rotate with the conversion chamber 9. The end of the column shaft extends out of the conversion chamber 9 and connects with the conversion knob 12. The end of the conversion chamber 9 has a sealing plug 13. Two parallel nasal cannulas 14 are fixedly installed on the sealing plug 13. The sealing plug 13 has a through-hole that communicates with the nasal cannulas 14.

[0005] The dental pad tube 3 extends radially outward from one end inside the breathing mask 1, forming two incisor grooves 15.

[0006] The end of the nasal cannula 14 is provided with a silicone nasal plug 16.

[0007] The exhalation tube 4 extends vertically outward from the end outside the breathing mask 1 and connects to the one-way valve. The one-way valve includes a valve tube 17 that can be screwed and sealed with the exhalation tube 4. The valve tube 17 is a hollow tubular structure with an opening at one end. A perforated ventilation plate 18 is installed at the open end of the valve tube 17. A one-way valve plate 19 is provided inside the valve tube 17. A ring of valve holes 20 is opened through the one-way valve plate 19. A valve valve diaphragm 21 that can cover all the valve holes 20 is provided at the end of the one-way valve plate 19 near the perforated ventilation plate 18. The valve valve diaphragm 21 is fixed to the one-way valve plate 19 by a positioning button 22.

[0008] The end of the dental pad tube 3 is fitted with a rubber ring 23 that allows the insertion tube gap to pass through. The inner wall of the rubber ring 23 is provided with several equidistant raised rings 24, and the raised rings 24 are in an interference sliding fit with the outer wall of the insertion tube.

[0009] The conversion column 8 has a vent hole 81 radially opened in the middle, which can be connected to the oxygen tube connector 10 and the anesthetic gas connector 11 respectively. The tail of the vent hole 81 has a vent groove 82 that communicates with the gas guide groove. The optimal size of the vent groove 82 is such that the vent groove 82 is connected to the gas guide groove regardless of whether the vent hole 81 is connected to the oxygen tube connector 10 or the anesthetic gas connector 11.

[0010] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects: simple structure, convenient operation, and can effectively solve the seamless switching between oxygen supply and anesthetic gas during inhalation anesthesia without the need to replace the corresponding mask, thus improving the flexibility of operation during the operation. Moreover, the supply and exhalation use two independent channels, which not only avoids the inhalation of nitric oxide, but also effectively prevents the phenomenon of condensation of exhaled gas in the mask. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2This is a top view of the breathing mask in this invention; Figure 3 This is an internal sectional view of the conversion column in this invention; Figure 4 This is a schematic diagram of the internal structure of the valve tube in this invention. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0014] See Figure 1-4 The specific implementation method is achieved by the following technical solution, which includes a breathing mask 1, a cylindrical cover 2 protruding outward from the middle of the breathing mask 1, a through hole in the middle of the cover 2, a mouthpiece tube 3 that can be sealed and slidably fitted inside the cover 2, an exhalation tube 4 parallel to the mouthpiece tube 3 on one side, and the end of the exhalation tube 4 extending out of the breathing mask 1 and connecting to a one-way valve. The one-way valve is a one-way structure that can exhale to the outside of the breathing mask 1. The cover 2 has a conversion chamber 9 inside, and a conversion column 8 that can be sealed and rotated to fit against its inner wall. The conversion chamber 9 has two oxygen pipe connectors 10 and anesthetic gas connectors 11 that communicate with its interior. The oxygen pipe connectors 10 and anesthetic gas connectors 11 are arranged at right angles. The top of the conversion column 8 has a column shaft that can rotate with the conversion chamber 9. The end of the column shaft extends out of the conversion chamber 9 and connects with the conversion knob 12. The end of the conversion chamber 9 has a sealing plug 13. Two parallel nasal cannulas 14 are fixedly installed on the sealing plug 13. The sealing plug 13 has a through-hole that communicates with the nasal cannulas 14.

[0015] The dental pad tube 3 extends radially outward from one end inside the breathing mask 1, forming two incisor grooves 15.

[0016] The end of the nasal cannula 14 is provided with a silicone nasal plug 16.

[0017] The exhalation tube 4 extends vertically outward from the end outside the breathing mask 1 and connects to the one-way valve. The one-way valve includes a valve tube 17 that can be screwed and sealed with the exhalation tube 4. The valve tube 17 is a hollow tubular structure with an opening at one end. A perforated ventilation plate 18 is installed at the open end of the valve tube 17. A one-way valve plate 19 is provided inside the valve tube 17. A ring of valve holes 20 is opened through the one-way valve plate 19. A valve valve diaphragm 21 that can cover all the valve holes 20 is provided at the end of the one-way valve plate 19 near the perforated ventilation plate 18. The valve valve diaphragm 21 is fixed to the one-way valve plate 19 by a positioning button 22.

[0018] The end of the dental pad tube 3 is fitted with a rubber ring 23 that allows the insertion tube gap to pass through. The inner wall of the rubber ring 23 is provided with several equidistant raised rings 24, and the raised rings 24 are in an interference sliding fit with the outer wall of the insertion tube.

[0019] The conversion column 8 has a vent hole 81 radially opened in the middle, which can be connected to the oxygen tube connector 10 and the anesthetic gas connector 11 respectively. The tail of the vent hole 81 has a vent groove 82 that communicates with the gas guide groove. The optimal size of the vent groove 82 is such that the vent groove 82 is connected to the gas guide groove regardless of whether the vent hole 81 is connected to the oxygen tube connector 10 or the anesthetic gas connector 11.

[0020] The following, in conjunction with the accompanying drawings, further elaborates on the usage method and principle of the technical solution in this specific embodiment: Before use, have the patient maintain a normal lateral decubitus position. Then, place the breathing mask 1 over the patient's mouth and nose as usual, and have the patient bite down between the two incisors 15 of the bite block tube 3, while also having the patient's upper and lower lips cover the bite block tube 3. Ensure that the nasal cannula 14 is also fully inserted into the patient's nostrils. Since the mouth is open at this time, the mouth will also participate in breathing. The silicone nasal plug 16 on the nasal cannula 14 will block the nasal cavity. In addition, due to the oxygen being expelled, the nasal cavity will only inhale, while the exhaled air will be discharged from the mouth through the exhalation tube 4 and the one-way valve, thus preventing the phenomenon of condensation of exhaled air on the inner surface of the breathing mask 1. When using, first rotate the conversion... Knob 12 connects the ventilation port 81 to the anesthetic gas connector 11, allowing the anesthetic gas to be inhaled by the patient through the ventilation port 81, ventilation channel 82, and air delivery channel, ultimately via the nasal cannula 14. After the anesthetic response is achieved, the switch knob 12 is rotated again to connect the ventilation port 81 to the oxygen tube connector 10, thus achieving oxygen delivery. This enables seamless switching between oxygen supply and anesthetic gas during inhalation anesthesia, eliminating the need to replace the mask and improving operational flexibility. Furthermore, the use of two independent channels for gas supply and exhalation not only avoids the inhalation of nitric oxide but also prevents condensation from occurring on the inner wall of the breathing mask 1 during the entire inhalation and exhalation cycle.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anesthesiology respiratory mask, characterized in that... It includes a breathing mask 1, with a cylindrical cover 2 protruding outward from the middle of the breathing mask 1. A through hole is opened in the middle of the cover 2. A bite pad tube 3 is provided inside the cover 2, which can be sealed and slidably fitted with it. An exhalation tube 4 is provided on one side of the bite pad tube 3, which is parallel to it. The end of the exhalation tube 4 extends out of the breathing mask 1 and connects with a one-way valve. The one-way valve is a one-way structure that can exhale to the outside of the breathing mask 1. The cover 2 has a conversion chamber 9 inside, and a conversion column 8 that can be sealed and rotated to fit against its inner wall. The conversion chamber 9 has two oxygen pipe connectors 10 and anesthetic gas connectors 11 that communicate with its interior. The oxygen pipe connectors 10 and anesthetic gas connectors 11 are arranged at right angles. The top of the conversion column 8 has a column shaft that can rotate with the conversion chamber 9. The end of the column shaft extends out of the conversion chamber 9 and connects with the conversion knob 12. The end of the conversion chamber 9 has a sealing plug 13. Two parallel nasal cannulas 14 are fixedly installed on the sealing plug 13. The sealing plug 13 has a through-hole that communicates with the nasal cannulas 14.

2. The anesthesiology breathing mask according to claim 1, characterized in that... The dental pad tube 3 extends radially outward from one end inside the breathing mask 1, forming two incisor grooves 15.

3. The anesthesiology breathing mask according to claim 1, characterized in that... The end of the nasal cannula 14 is provided with a silicone nasal plug 16.

4. The anesthesiology breathing mask according to claim 1, characterized in that... The exhalation tube 4 extends vertically outward from the end outside the breathing mask 1 and connects to the one-way valve. The one-way valve includes a valve tube 17 that can be screwed and sealed with the exhalation tube 4. The valve tube 17 is a hollow tubular structure with an opening at one end. A perforated ventilation plate 18 is installed at the open end of the valve tube 17. A one-way valve plate 19 is provided inside the valve tube 17. A ring of valve holes 20 is opened through the one-way valve plate 19. A valve valve diaphragm 21 that can cover all the valve holes 20 is provided at the end of the one-way valve plate 19 near the perforated ventilation plate 18. The valve valve diaphragm 21 is fixed to the one-way valve plate 19 by a positioning button 22.

5. An anesthesiology breathing mask according to claim 1, characterized in that... The end of the dental pad tube 3 is fitted with a rubber ring 23 that allows the insertion tube gap to pass through. The inner wall of the rubber ring 23 is provided with several equidistant raised rings 24, and the raised rings 24 are in an interference sliding fit with the outer wall of the insertion tube.

6. An anesthesiology breathing mask according to claim 1, characterized in that... The conversion column 8 has a vent hole 81 radially opened in the middle, which can be connected to the oxygen tube connector 10 and the anesthetic gas connector 11 respectively. The tail of the vent hole 81 has a vent groove 82 that communicates with the gas guide groove. The optimal size of the vent groove 82 is such that the vent groove 82 is connected to the gas guide groove regardless of whether the vent hole 81 is connected to the oxygen tube connector 10 or the anesthetic gas connector 11.

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