Multi-purpose ventilation device

Abstract

The present invention relates to the technical field of medical devices, and in particular to a multi-purpose ventilation device, comprising an oropharyngeal airway body (A) and an oropharyngeal airway body (B), wherein the oropharyngeal airway body (B) can be plugged into the oropharyngeal airway body (A); the multi-purpose ventilation device of the present invention has the functions of absorbing oropharyngeal secretions, providing a clear intubation field of view, and having the functions of an external three-way valve for high-flow oxygen supply.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a multi-purpose ventilation device. Background Art

[0002] Oropharyngeal airway, also known as oropharyngeal ventilator, is a non-tracheal tube non-invasive ventilation tube. It presses down the tongue to prevent the tongue from falling back, supports the palatoglossal arch and uvula, separates the tongue root from the posterior pharyngeal wall, relieves upper airway obstruction, quickly opens the airway, keeps the airway open, and establishes a temporary artificial airway. It is widely used in the medical field. It is mainly used for the induction period of general anesthesia for patients with endotracheal intubation before surgery, upper airway obstruction caused by tongue falling back in various comatose patients during non-endotracheal intubation, and to establish a temporary airway for other types of difficult airways. It is an essential airway management auxiliary tool for clinical departments such as anesthesiology, respiratory medicine, ICU and emergency department.

[0003] The current oropharyngeal airway generally only has the function of improving ventilation. It does not have the function of absorbing oropharyngeal secretions, the function of clear intubation vision, or the function of external three-way valve for high-flow oxygen supply. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a multi-purpose ventilation device that can improve ventilation while having the functions of absorbing oropharyngeal secretions, having a clear intubation field of view, and having a three-way valve for external high-flow oxygen supply.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A multi-purpose ventilation device comprises an oropharyngeal airway body A and an oropharyngeal airway body B. The oropharyngeal airway body B can be plugged into the oropharyngeal airway body A.

[0007] The oropharyngeal airway body A includes a first body 101, a second body insertion hole 102 in the form of a through hole is arranged at the center of the first body 101, and a convex occlusal body 103 is arranged at the rear of the second body insertion hole 102; a nasal oxygen structure is arranged at the top of the first body 101, and the nasal oxygen structure includes an oxygen inlet 106 located on one side of the top of the first body 101, and includes oxygen outlets 107 located at both ends of the top of the first body 101; the oxygen inlet 106 and the oxygen outlet 107 are connected via an oxygen delivery pipe 108 arranged inside the first body 101.

[0008] The oropharyngeal airway body B includes a second body 201, which is in a streamlined curved shape. Oxygen gas delivery pipes 202 are arranged on both sides of the interior of the second body 201; the front end of the oxygen gas delivery pipe 202 is located at the front part of the second body 201, and the front end of the oxygen gas delivery pipe 202 is provided with an oxygen inlet 203; the rear end of the oxygen gas delivery pipe 202 is located at the rear part of the second body 201, and the rear end of the oxygen gas delivery pipe 202 is provided with an oxygen outlet 204; a carbon dioxide collection pipe 205 is arranged in the middle of the interior of the second body 201, and the carbon dioxide collection pipe 205 is arranged at the rear end of the second body 201. The front end of the collecting pipe 205 is located at the front part of the second body 201, and the front end of the carbon dioxide collection tube 205 is provided with a carbon dioxide outlet 206; the rear end of the carbon dioxide collection tube 205 is located at the rear part of the second body 201, and the rear end of the carbon dioxide collection tube 205 is provided with a carbon dioxide collection port 207; the front part of the second body 201 is provided with a fixing ring 208, and the center of the fixing ring 208 is provided with an oropharyngeal channel opening 209, and the rear part of the oropharyngeal channel opening 209 extends and is connected to the top surface of the second body 201 to form a concave oropharyngeal channel 210.

[0009] The present invention also has the following additional technical features:

[0010] As a further specific optimization of the technical solution of the present invention: the material of the oropharyngeal airway body A is sterile medical hard plastic; the material of the oropharyngeal airway body B is sterile medical soft rubber.

[0011] As a further specific optimization of the technical solution of the present invention: outwardly convex snap-fitting locking male heads 104 are provided on both sides of the second body insertion hole 102, and hollow snap-fitting locking female holes 211 are provided on both sides of the fixing ring 208. The snap-fitting locking female holes 211 and the snap-fitting locking male heads 104 are installed and used in cooperation with each other.

[0012] As a further specific optimization of the technical solution of the present invention: a strap fixing hole 105 in the form of a through hole is provided on the outer side of the locking male head 104 .

[0013] As a further specific optimization of the technical solution of the present invention: the oxygen outlets 107 at the two ends of the top of the oropharyngeal airway body A are inserted into the patient's nasal cavity, the oxygen inlet 106 is connected to the three-way valve for oxygen supply, and the three-way valve for oxygen supply is connected to the two oxygen inlet ports 203 set at the front end of the oropharyngeal airway body B.

[0014] As a further specific optimization of the technical solution of the present invention: the carbon dioxide outlet 206 of the oropharyngeal airway body B is connected to a carbon dioxide collection and analysis instrument.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The multi-purpose ventilation device of the present invention has the functions of absorbing oropharyngeal secretions, providing a clear intubation field of view, and having the functions of externally connecting a three-way valve for high-flow oxygen supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1-Figure 2 It is a schematic diagram of the structure of the multi-purpose oropharyngeal airway of the present invention;

[0018] Figure 3-Figure 5 It is a structural schematic diagram of the oropharyngeal airway body A of the present invention;

[0019] Figure 6-Figure 8 It is a schematic diagram of the structure of the oropharyngeal airway body B of the present invention;

[0020] Fig. 9 It is a schematic diagram of the connection structure of the oropharyngeal passage 210 of the present invention;

[0021] Fig.10 It is a schematic diagram of the structure of the occlusal body 212 of the present invention;

[0022] Fig.11 It is a schematic diagram of the structure of the pore 213 of the present invention;

[0023] Figure 12-13 It is a schematic diagram of the size structure of the present invention.

[0024] Description of the accompanying drawings: oropharyngeal airway body A, oropharyngeal airway body B. DETAILED DESCRIPTION

[0025] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0026] A multi-purpose ventilation device comprises an oropharyngeal airway body A and an oropharyngeal airway body B, wherein the oropharyngeal airway body B can be plugged into the oropharyngeal airway body A. The material of the oropharyngeal airway body A is sterile medical hard plastic; the material of the oropharyngeal airway body B is sterile medical soft rubber.

[0027] The multi-purpose ventilation device has the following principles: nasal oxygen supply is set through the oxygen outlet 107, laryngeal oxygen supply is set through the oxygen inlet 203, and carbon dioxide collection is set through the carbon dioxide outlet 206. At the same time, the carbon dioxide outlet 206 can be replaced with an oxygen inlet to provide a large flow of oxygen in other special cases. When nasal oxygen supply is set through the oxygen outlet 107 and laryngeal oxygen supply is set through the oxygen inlet 203, a high-flow oxygen supply instrument is connected through an oxygen supply three-way valve.

[0028] The oropharyngeal airway body A comprises a first body 101, a through-hole-shaped second body insertion hole 102 is arranged at the center of the first body 101, a convex occlusal body 103 is arranged at the rear of the second body insertion hole 102; convex locking male heads 104 are arranged on both sides of the second body insertion hole 102, and a through-hole-shaped binding strap fixing hole 105 is arranged on the outer side of the locking male head 104;

[0029] A nose oxygen structure is provided at the top of the first body 101, and the nose oxygen structure includes an oxygen inlet 106 located on one side of the top of the first body 101, and oxygen outlets 107 located at both ends of the top of the first body 101; the oxygen inlet 106 and the oxygen outlet 107 are connected via an oxygen delivery pipe 108 provided inside the first body 101.

[0030] The oropharyngeal airway body B includes a second body 201, and the second body 201 is in a streamlined curved shape.

[0031] The second body 201 is a secondary injection molding of soft and hard materials. The front end of the second body 201 is a hard material, and the rear end of the second body 201 is a soft material. The hard material is injected first and then the soft material. The design of the second body 201 can make the hard material at the front end press the tongue, and the soft material at the rear end will not hurt the throat.

[0032] Oxygen gas delivery pipes 202 are arranged on both sides of the interior of the second body 201; the front end of the oxygen gas delivery pipe 202 is located at the front part of the second body 201, and the front end of the oxygen gas delivery pipe 202 is arranged with an oxygen air inlet 203; the rear end of the oxygen gas delivery pipe 202 is located at the rear part of the second body 201, and the rear end of the oxygen gas delivery pipe 202 is arranged with an oxygen air outlet 204; a carbon dioxide collection pipe 205 is arranged in the middle of the interior of the second body 201, the front end of the carbon dioxide collection pipe 205 is located at the front part of the second body 201, and the front end of the carbon dioxide collection pipe 205 is arranged with a carbon dioxide air outlet 206; the rear end of the carbon dioxide collection pipe 205 is located at the rear part of the second body 201, and the rear end of the carbon dioxide collection pipe 205 is arranged with a carbon dioxide collection port 207.

[0033] The side walls of the oxygen delivery pipes 202 on both sides and the carbon dioxide collection pipe 205 in the middle are provided with air holes 213 distributed at intervals. The purpose of providing the air holes 213 is to prevent the oxygen outlet 204 or the carbon dioxide collection port 207 at the bottom from being blocked.

[0034] A filter layer is designed at the bottom of the carbon dioxide collection port 207 of the oropharyngeal airway body B. The filter layer is located inside the bottom of the carbon dioxide collection port 207. The filter layer is a multi-layer filter layer, which is a first filter layer, a second filter layer and a third filter layer from the outside to the inside. The first filter layer filters large particles, the second filter layer filters medium particles, and the third filter layer filters small particles. The setting of the multi-layer filter layer can prevent particles from blocking the carbon dioxide collection port 207. When the carbon dioxide collection port 207 is blocked, a high-flow oxygen supply can be connected to break the blockage.

[0035] The front part of the second body 201 is provided with a fixing ring 208, and the center of the fixing ring 208 is provided with an oropharyngeal passage opening 209, and the rear part of the oropharyngeal passage opening 209 is extended and connected to the top surface of the second body 201 to form a concave oropharyngeal passage 210. Through the oropharyngeal passage 210, other tubes can be subsequently inserted to provide a clear field of vision.

[0036] like Figure 6 As shown, a dark-marked indicator line 211 is provided at the concave center of the oropharyngeal passage 210 , and the indicator line 211 can assist medical staff in intubation.

[0037] like Fig. 9 As shown, the fixing ring 208 of the oropharyngeal airway body B may also be designed with a bite body 212. Such a design allows the oropharyngeal airway body B to be used alone when the oropharyngeal airway body A is no longer needed.

[0038] like Fig.10 As shown, since the length of the oropharyngeal passage 210 is approximately the length from the patient's lips to the glottis, but since the patients have different heights, different head circumferences, and different neck lengths, the length of the oropharyngeal passage 210 should also be different. Therefore, the oropharyngeal passage 210 is divided into a front and back connection form, the front part is a hard material, and the back part is a soft material. The oxygen delivery pipe 202 and the carbon dioxide collection pipe 205 are hard materials, fixed on the front part, and the back of the oxygen delivery pipe 202 and the carbon dioxide collection pipe 205 extends into the back part, so that the soft material relies on the oxygen delivery pipe 202 and the carbon dioxide collection pipe 205 to push and pull back and forth, thereby changing the distance between the hard material and the soft material, and finally changing the length of the oropharyngeal passage 210.

[0039] Hollow-shaped locking female holes 211 are provided on both sides of the fixing ring 208 , and the locking female holes 211 and the locking male head 104 cooperate with each other for installation and use.

[0040] When in use, the second body 201 of the oropharyngeal airway body B is passed through the second body insertion hole 102 of the first body 101 of the oropharyngeal airway body A, and the snap-locking female hole 211 is snap-fastened onto the snap-locking male head 104. At the same time, a strap is tied onto the strap fixing hole 105, and the strap can be fixed to the patient's head.

[0041] The patient's mouth is opened, and the second body 201 of the oropharyngeal airway body B is inserted into the patient's throat, and at the same time, the patient's teeth bite the bite body 103 of the first body 101. At this time, the situation inside the patient's oral cavity can be directly observed through the oropharyngeal passage opening 209 of the oropharyngeal airway body B, and the insertion of the gastric tube can also be clearly seen when a gastric tube needs to be inserted, thereby improving the clear intubation field function. At the same time, it also provides a clear field of view for subsequent insertion of other tubes, reduces the time used for intubation, improves the success rate of intubation, and reduces the patient's hypoxia time when the tracheal tube is inserted.

[0042] Insert the oxygen outlets 107 at both ends of the top of the oropharyngeal airway body A into the patient's nasal cavity, connect the oxygen inlet 106 to the three-way valve for oxygen supply, and connect the three-way valve for oxygen supply to the two oxygen inlets 203 set at the front end of the oropharyngeal airway body B. In this way, oxygen can be supplied to the patient's nasal cavity and oral cavity at the same time. Nasal oxygen supply is set through the oxygen outlet 107 and throat oxygen supply is set through the oxygen inlet 203, which improves the functions of oxygen supply and oxygen supply, and also improves the function of the external high-flow oxygen supply three-way valve.

[0043] The carbon dioxide outlet 206 of the oropharyngeal airway body B is connected to a carbon dioxide collection and analysis instrument to analyze the patient's carbon dioxide status in real time.

[0044] If other special circumstances arise during the operation and the patient needs to inhale oxygen in large quantities, the pipe connecting the carbon dioxide outlet 206 to the carbon dioxide collection and analysis instrument can be disconnected and directly connected to a large-flow oxygen machine, so that the carbon dioxide outlet 206 is converted into an oxygen inlet for oxygen supply. At the same time, the oxygen outlet 107 and the oxygen inlet 203 cooperate to supply oxygen, which can quickly realize large-flow oxygen supply, further improving the function of external large-flow oxygen supply.

[0045] If other special circumstances occur during the operation and it is necessary to absorb the oropharyngeal secretions of the patient, after inserting the multi-purpose oropharyngeal airway into the patient, the throat oxygen supply ventilation is set through the oxygen inlet 203, and the carbon dioxide outlet 206 is connected to the oropharyngeal secretion absorber. At this time, oxygen is input from the oxygen outlet 204 on both sides of the oropharyngeal airway body B, and the carbon dioxide collection port 207 absorbs the oropharyngeal secretions through the negative pressure absorption of the oropharyngeal secretion absorber. As the middle airway gradually narrows and the side airway gradually widens, the flow rate of the internal airflow will gradually increase. As the air flow speed increases, the corresponding internal pressure gradually decreases, while as the air flow speed on both sides gradually slows down, the corresponding pressure gradually increases, that is, a gradually increasing pressure difference will be formed on the left and right sides of the carbon dioxide collection port 207. If there is sputum or other secretions in the oropharynx or gastroesophageal reflux from a full stomach patient or a comatose patient, they will be quickly adsorbed on the carbon dioxide collection port 207 and then can be sucked out through the carbon dioxide collection tube 205, thus avoiding the use of a sputum suction tube to irritate the throat of the patient who is already hypoxic, and can reduce the risk of reflux and aspiration of the patient caused by various secretions.

[0046] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention but merely represents selected embodiments of the present invention.

Claims

1. A multi-purpose ventilation device, characterized in that: The invention comprises a first oropharyngeal airway body (A) and a second oropharyngeal airway body (B), wherein the second oropharyngeal airway body (B) can be plugged into the first oropharyngeal airway body (A); wherein: The first oropharyngeal airway body (A) comprises a first body (101), a second body insertion hole (102) in the form of a through hole is arranged at the center of the first body (101), and a convex occlusal body (103) is arranged at the rear of the second body insertion hole (102); a nasal oxygen structure is arranged at the top of the first body (101), and the nasal oxygen structure comprises an oxygen inlet (106) located at one side of the top of the first body (101), and oxygen outlets (107) located at both ends of the top of the first body (101); the oxygen inlet (106) and the oxygen outlet (107) are connected via an oxygen delivery pipe (108) arranged inside the first body (101); The second oropharyngeal airway body (B) comprises a second body (201), the second body (201) is in a streamlined curved shape, oxygen gas delivery pipes (202) are arranged on both sides of the interior of the second body (201); the front end of the oxygen gas delivery pipe (202) is located at the front part of the second body (201), and the front end of the oxygen gas delivery pipe (202) is provided with an oxygen inlet (203); the rear end of the oxygen gas delivery pipe (202) is located at the rear part of the second body (201), and the rear end of the oxygen gas delivery pipe (202) is provided with an oxygen outlet (204); a carbon dioxide collection pipe (205) is arranged in the middle of the interior of the second body (201), and the carbon dioxide The front end of the collection tube (205) is located at the front of the second body (201), and the front end of the carbon dioxide collection tube (205) is provided with a carbon dioxide outlet (206); the rear end of the carbon dioxide collection tube (205) is located at the rear of the second body (201), and the rear end of the carbon dioxide collection tube (205) is provided with a carbon dioxide collection port (207); the front of the second body (201) is provided with a fixing ring (208), and the center of the fixing ring (208) is provided with an oropharyngeal passage opening (209), and the rear part of the oropharyngeal passage opening (209) extends and connects to the top surface of the second body (201) to form a concave oropharyngeal passage (210); The oropharyngeal passage (210) is divided into a front and rear part, the front part is made of hard material, and the rear part is made of soft material. The oxygen delivery pipe (202) and the carbon dioxide collection pipe (205) are made of hard material and are fixed on the front part, and the rear parts of the oxygen delivery pipe (202) and the carbon dioxide collection pipe (205) extend into the rear part, so that the soft material can be pushed and pulled back and forth by relying on the oxygen delivery pipe (202) and the carbon dioxide collection pipe (205), thereby changing the distance between the hard material and the soft material, and finally changing the length of the oropharyngeal passage (210).

2. The multi-purpose ventilation device according to claim 1, characterized in that: The material of the first oropharyngeal airway body (A) is sterile medical hard plastic; the material of the second oropharyngeal airway body (B) is sterile medical soft rubber.

3. The multi-purpose ventilation device according to claim 1, characterized in that: The second body insertion hole (102) is provided with an outwardly convex snap-fit ​​locking male head (104) on both sides, and the fixing ring (208) is provided with a hollow snap-fit ​​locking female hole (211) on both sides. The snap-fit ​​locking female hole (211) and the snap-fit ​​locking male head (104) cooperate with each other for installation and use.

4. The multi-purpose ventilation device according to claim 1, characterized in that: A through-hole-shaped binding strap fixing hole (105) is provided on the outer side of the locking male head (104).

5. The multi-purpose ventilation device according to claim 1, characterized in that: The oxygen outlets (107) at both ends of the top of the first oropharyngeal airway body (A) are inserted into the patient's nasal cavity, the oxygen inlet (106) is connected to a three-way valve for oxygen supply, and the three-way valve for oxygen supply is connected to two oxygen inlet ports (203) arranged at the front end of the second oropharyngeal airway body (B).

6. The multi-purpose ventilation device according to claim 1, characterized in that: The carbon dioxide outlet (206) of the second oropharyngeal airway body (B) is connected to a carbon dioxide collection and analysis instrument.

7. The multi-purpose ventilation device according to claim 1, characterized in that: The side walls of the oxygen delivery pipes (202) on both sides and the carbon dioxide collection pipe (205) in the middle are both provided with air holes (213) distributed at intervals.

8. The multi-purpose ventilation device according to claim 1, characterized in that: A filter layer is designed at the bottom of the carbon dioxide collection port (207) of the second oropharyngeal airway body (B). The filter layer is located inside the bottom of the carbon dioxide collection port (207). The filter layer is a multi-layer filter layer, which includes a first filter layer, a second filter layer and a third filter layer from the outside to the inside. The first filter layer filters large particles, the second filter layer filters medium particles, and the third filter layer filters small particles. The setting of the multi-layer filter layer can prevent particles from clogging the carbon dioxide collection port (207).

9. The multi-purpose ventilation device according to claim 1, characterized in that: A dark-colored indicator line (211) is provided at the center of the depression of the oropharyngeal passage (210).

10. The multi-purpose ventilation device according to claim 1, characterized in that: The fixing ring (208) of the second oropharyngeal airway body (B) is designed with a bite body (212).

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