Closed auxiliary ventilation device

Abstract

The invention discloses a closed type auxiliary ventilation device and belongs to the technical field of auxiliary ventilation equipment, after a ventilation pipe is inserted into the throat of a patient, an application film is attached to the face of the patient, flanges are tightly attached to the lips of the user, and the application film enables the ventilation pipe and the face of the patient to be sealed so that sealing can be guaranteed under the pressurized ventilation condition. And sufficient pressurized oxygen supply amount is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of assisted ventilation devices, and particularly to a closed-type assisted ventilation device. Background Art

[0002] Patients with co-existing lung diseases often need to undergo fiberoptic bronchoscopy to seek the cause or for treatment. Such patients often have hypoxemia. Especially during painless fiberoptic bronchoscopy, under the action of anesthetic drugs, the cough reflex is inhibited, and the patient's respiration is suppressed, making it easier to develop severe hypoxemia, and effective respiratory support is urgently needed. For painless transnasal fiberoptic bronchoscopy, an oropharyngeal airway catheter is often inserted into the patient's oropharynx to prevent posterior displacement of the tongue and maintain airway patency. Placing an oropharyngeal airway is a method that is simple to operate, easy to master, and does not require special instruments to maintain airway patency.

[0003] However, in an emergency situation where rapid effective ventilation needs to be obtained through pressure ventilation, the oropharyngeal airway has poor sealing, resulting in "air leakage" and insufficient actual oxygen supply under pressure. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a closed-type assisted ventilation device, in which a dressing film forms a seal between the ventilation tube and the patient's face, so as to ensure sealing under pressure ventilation and ensure sufficient oxygen supply under pressure.

[0005] The closed-type assisted ventilation device according to an embodiment of the present invention includes: A ventilation tube, the outer wall of the front end is provided with a flange; A dressing film, connecting the flange, the dressing film is disposed around the outer periphery of the ventilation tube, and the dressing film extends outward from the ventilation tube.

[0006] The closed-type assisted ventilation device according to an embodiment of the present invention has at least the following beneficial effects: After the ventilation tube is inserted into the patient's throat, the dressing film fits onto the patient's face, the flange closely adheres to the user's lips, and the dressing film forms a seal between the ventilation tube and the patient's face, so as to ensure sealing under pressure ventilation and ensure sufficient oxygen supply under pressure.

[0007] According to some embodiments of the present invention, the dressing film includes: A base layer, provided with an adhesive layer, the base layer connects the flange; A protective layer, detachably covering the adhesive layer.

[0008] According to some embodiments of the present invention, the protective layer is provided with a weakening groove, and the weakening groove extends from the ventilation tube to the outer edge of the protective layer.

[0009] According to some embodiments of the present invention, the ventilation tube includes: A body with the flange provided at the front end; A mouthguard detachably inserted through the front end of the body, with a convex edge provided on the outer sidewall of the mouthguard, and the convex edge and the flange clamping the dressing film.

[0010] According to some embodiments of the present invention, the dressing film is provided with a through assembly hole, the mouthguard passes through the assembly hole and is inserted into the front end of the body, and the convex edge and the flange seal the assembly hole.

[0011] According to some embodiments of the present invention, the dressing film seals the gap between the outer sidewall of the mouthguard and the inner sidewall of the front end of the body.

[0012] According to some embodiments of the present invention, the dressing film is provided with a through hole, the ventilation tube bends upward or downward, and the through hole is located above or below the ventilation tube.

[0013] According to some embodiments of the present invention, the closed-type auxiliary ventilation device further includes: A sealing film detachably sealing the through hole.

[0014] According to some embodiments of the present invention, the ventilation tube is further provided with a pharyngeal bending part, and an opening is provided on the sidewall of the pharyngeal bending part.

[0015] According to some embodiments of the present invention, the closed-type auxiliary ventilation device further includes a gas source connector detachably connected to the ventilation tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural view of a closed-type auxiliary ventilation device according to an embodiment of the present invention; Figure 2 is a schematic structural view of the closed-type auxiliary ventilation device from another angle according to an embodiment of the present invention; Figure 3 is a schematic cross-sectional view of a closed-type auxiliary ventilation device according to an embodiment of the present invention; Figure 4 is Figure 3 an enlarged view of A in

[0017] Reference numerals: ventilation tube 100, body 101, pharyngeal bending part 102, opening 103, flange 110, mouthguard 120, convex edge 121, gas source connector 130, dressing film 200, base material layer 210, protective layer 220, weakening groove 221, through hole 230, sealing film 300. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as front, rear, upper, lower, axial direction, circumferential direction, etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] In the description of the present invention, the meaning of "a plurality of" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present invention, it should be noted that terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0022] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the following described embodiments are part of the embodiments of the present invention, not all embodiments.

[0023] Referring to Figures 1 to 4 As shown, the present invention provides a closed-type assisted ventilation device.

[0024] The closed-type assisted ventilation device includes a ventilation tube 100 and an adhesive film 200.

[0025] On the outer side wall of the front end of the ventilation tube 100, there is provided a flange 110 extending outward. The adhesive film 200 is connected to the flange 110, and the adhesive film 200 extends along the outer circumference of the ventilation tube 100 and extends outward.

[0026] After the ventilation tube 100 is inserted into the patient's throat, the adhesive film 200 fits onto the patient's face, the flange 110 closely adheres to the user's lips, and the adhesive film 200 forms a seal between the ventilation tube 100 and the patient's face, so as to ensure the seal under the condition of pressurized ventilation and ensure sufficient pressurized oxygen supply.

[0027] In some embodiments, referring to Figure 4As shown, the application film 200 includes a base layer 210 and a protective layer 220. A sticking layer is provided on the rear side of the base layer 210. The base layer 210 is connected to the flange 110. The protective layer 220 is detachably covered on the rear side of the sticking layer, and the protective layer 220 protects the sticking layer.

[0028] When using the application film 200, it is necessary to first remove the protective layer 220, and then use the sticking layer to stick the base layer 210 to the patient's face, so as to form a seal between the ventilation tube 100 and the patient's face.

[0029] In some embodiments, referring to Figure 1 As shown, the protective layer 220 is provided with a weakening groove 221, and the weakening groove 221 extends from the ventilation tube 100 outward to the outer edge of the protective layer 220.

[0030] In this embodiment, the weakening groove 221 extends from the ventilation tube 100 upward to the upper edge of the protective layer 220 and downward to the lower edge of the protective layer 220.

[0031] When in use, after inserting the ventilation tube 100 into the patient's throat, bring the application film 200 close to the patient's face, and then tear the protective layer 220 from the weakening groove 221, so that the protective layer 220 is torn outward from the ventilation tube 100. Then, during the tearing process, the base layer 210 of the application film 200 can be attached to the patient's face accordingly, avoiding wrinkling and folding of the base layer 210, and improving the sealing performance between the application film 200 and the patient's face.

[0032] In some embodiments, referring to Figures 1 to 4 As shown, the ventilation tube 100 includes a main body 101 and a dental pad 120. A flange 110 is provided on the outer side wall of the front end of the main body 101. The dental pad 120 is detachably inserted through the front end of the main body 101. An outwardly protruding convex edge 121 is provided on the outer side wall of the front end of the dental pad 120. The convex edge 121 and the flange 110 are opposite to each other in the front-rear direction, and the convex edge 121 and the flange 110 clamp the application film 200 in the front-rear direction.

[0033] The application film 200 is arranged on the front side of the flange 110. After the dental pad 120 is inserted backward into the front end of the main body 101, the convex edge 121 of the dental pad 120 and the flange 110 of the main body 101 clamp the application film 200, which is convenient for the installation and fixation of the application film 200.

[0034] In some embodiments, referring to Figure 4 As shown, the application film 200 is provided with an assembly hole penetrating through the front and rear. After the dental pad 120 passes through the assembly hole of the application film 200 and is inserted into the front end of the main body 101, the convex edge 121 of the dental pad 120 and the flange 110 of the main body 101 seal the assembly hole of the application film 200.

[0035] After the dental pad 120 is inserted backward into the front end of the main body 101, the application film 200 can seal the gap between the front end of the main body 101 and the dental pad 120, improving the sealing effect.

[0036] In some embodiments, referring to Figures 1 to 4 As shown, the gap between the outer side wall of the dental pad 120 and the inner side wall of the front end of the main body 101 is sealed by the application film 200.

[0037] After the dental pad 120 is inserted backward into the front end of the main body 101, the application film 200 can seal the gap between the inner side wall of the main body 101 and the outer side wall of the dental pad 120, improving the sealing effect.

[0038] In some embodiments, referring to Figures 1 to 3 As shown, the ventilation tube 100 is bent downward or upward, and the application film 200 is provided with a through hole 230 that penetrates from front to back. The through hole 230 is located above the ventilation tube 100.

[0039] After the application film 200 is attached to the patient's face, the through hole 230 corresponds to the position of the patient's nostrils, facilitating the insertion of a transnasal fiberoptic bronchoscope into the patient's nostrils through the through hole 230.

[0040] In some embodiments, referring to Figures 1 to 3 As shown, the closed-type assisted ventilation device further includes a sealing film 300. The sealing film 300 is detachably attached to the front side of the application film 200, and the sealing film 300 seals the through hole 230.

[0041] By using the sealing film 300 to detachably seal the through hole 230, the sealing film 300 can be disassembled when it is necessary to open the patient's nostril position, and a transnasal fiberoptic bronchoscope can be inserted into the patient's nostrils through the through hole 230. After the examination is completed, the through hole 230 is closed again using the sealing film 300.

[0042] In some embodiments, referring to Figures 1 to 3 As shown, the ventilation tube 100 is provided with a pharyngeal bending portion 102, and a through opening 103 is provided on the side wall of the pharyngeal bending portion 102.

[0043] The opening 103 facilitates the insertion of a transoral fiberoptic bronchoscope, and the opening 103 avoids the patient's tongue, preventing extrusion of the delicate tongue. When the rear end of the ventilation tube 100 is blocked by secretions or the root of the tongue, the opening 103 is beneficial for maintaining ventilation.

[0044] In some embodiments, referring to Figures 1 to 4 As shown, the closed-type assisted ventilation device is further provided with a gas source connector 130. The gas source connector 130 is detachably connected to the front end of the ventilation tube 100.

[0045] The gas source connector 130 can be directly connected to the breathing tube of an external ventilator, or a balloon, an oxygen delivery tube connector, etc., so as to facilitate oxygen delivery and assisted ventilation after quick connection.

[0046] Specifically, referring to Figures 1 to 4 As shown, the closed-type assisted ventilation device includes a ventilation tube 100, an application film 200, a sealing film 300, and a gas source connector 130.

[0047] The ventilation tube 100 includes a main body 101 and a bite block 120. The main body 101 is provided with a ventilation hole that penetrates through from front to back. A flange 110 is provided at the front end of the main body 101. The flange 110 surrounds the main body 101 in a circumferential direction and extends outward. A pharyngeal bending portion 102 is provided at the rear section of the main body 101. The pharyngeal bending portion 102 gradually bends downward from front to back. A through opening 103 is provided on the side wall of the pharyngeal bending portion 102, and the opening 103 faces backward.

[0048] The bite block 120 cooperates with the front end of the main body 101. The bite block 120 is inserted into the front end of the main body 101. A mating hole that penetrates through from front to back is provided in the middle of the bite block 120. A convex edge 121 that protrudes outward is provided at the front end of the bite block 120. The convex edge 121 can abut against the front side of the flange 110. A plurality of steps are respectively provided on the upper and lower side walls of the bite block 120, and the plurality of steps are spaced apart in the front-rear direction, which helps the patient's teeth to bite between two adjacent steps in the front-rear direction.

[0049] The gas source connector 130 cooperates with the mating hole of the bite block 120. The rear end of the gas source connector 130 is inserted into the mating hole of the bite block 120. The gas source connector 130 is used to connect a gas source. The gas source connector 130 can be directly connected to the breathing tube of an external ventilator, or a balloon, an oxygen delivery tube connector, etc., so as to facilitate oxygen delivery and assisted ventilation after quick connection.

[0050] The application film 200 includes a base material layer 210 and a protective layer 220. A paste layer is provided on the rear side of the base material layer 210. The base material layer 210 is provided with an assembly hole and a through hole 230 that penetrate through from front to back. The through hole 230 is located above the assembly hole. The sealing film 300 is detachably attached to the front side of the base material layer 210. The sealing film 300 seals the through hole 230. The protective layer 220 is detachably covered on the rear side of the paste layer, and the protective layer 220 protects the paste layer.

[0051] The protective layer 220 is provided with a weakening groove 221. The weakening groove 221 extends upward and downward from the assembly hole to the upper and lower edges of the protective layer 220 respectively.

[0052] Align the assembly hole with the front end of the body 101 of the ventilation tube 100, then pass the dental pad 120 through the assembly hole and insert it into the front end of the body 101, so that the rear side wall of the convex edge 121 of the dental pad 120 and the front side wall of the flange 110 at the front end of the body 101 press and adhere to the application film 200, and part of the application film 200 is squeezed by the dental pad 120 into the ventilation hole of the body 101, so that the application film 200 seals the gap between the dental pad 120 and the ventilation hole of the body 101.

[0053] The closed-type assisted ventilation device of this embodiment has the function of oropharyngeal ventilation. The gas source connector 130 can be directly connected to the threaded tube of an external ventilator, a balloon, an oxygen delivery tube connector, etc. to perform oxygen delivery and assisted ventilation; the irregular application film 200 can play a role in fixing the ventilation tube 100. More importantly, it can seal the patient's mouth to form a closed space in the oral cavity, reduce air leakage, and can achieve the function of pressure ventilation.

[0054] A rectangular opening 103 is provided at the pharyngeal bending part 102 of the ventilation tube 100, which is beneficial for the insertion of a transoral fiberoptic bronchoscope; it avoids forming a groove to squeeze the patient's tongue; for patients with contraindications to nasal fiberoptic bronchoscopy, a transoral fiberoptic bronchoscope can be inserted from the front end of the ventilation tube 100 and extended into the patient's body through the opening 103 for examination, and effective pressure ventilation can also be performed; when the rear end of the ventilation tube 100 is blocked by secretions or the root of the tongue, the square opening is beneficial for maintaining ventilation.

[0055] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A closed auxiliary ventilation device, characterized in that: include: The vent pipe has a flange on the outer wall at the front end; The application film is connected to the flange, the application film is arranged around the outer periphery of the ventilation tube, and the application film extends to the outside of the ventilation tube.

2. The closed type auxiliary ventilation device according to claim 1, characterized in that: The application film comprises: A base material layer, provided with an adhesive layer, wherein the base material layer is connected to the flange; The protective layer is detachably covered on the adhesive layer.

3. The closed type auxiliary ventilation device according to claim 2, characterized in that: The protective layer is provided with a weakened groove, and the weakened groove extends outwardly from the vent pipe to the outer edge of the protective layer.

4. The closed type auxiliary ventilation device according to claim 1, characterized in that: The vent pipe comprises: A body, the front end of which is provided with the flange; The tooth pad is detachably mounted on the front end of the main body, and the outer side wall of the tooth pad is provided with a convex edge, and the convex edge and the flange clamp the application film.

5. The closed type auxiliary ventilation device according to claim 4, characterized in that: The application film is provided with a through assembly hole, the tooth pad is inserted into the front end of the body through the assembly hole, and the flange and the flank seal the assembly hole.

6. The closed type auxiliary ventilation device according to claim 5, characterized in that: The application film seals the gap between the outer wall of the tooth pad and the inner wall of the front end of the body.

7. The closed type auxiliary ventilation device according to claim 1, characterized in that: The application film is provided with a through hole, the ventilation tube is bent upward or downward, and the through hole is located above or below the ventilation tube.

8. The closed type auxiliary ventilation device according to claim 7, characterized in that: The closed auxiliary ventilation device also includes: A sealing film is used to detachably seal the through hole.

9. The closed type auxiliary ventilation device according to claim 1, characterized in that: The ventilation tube is also provided with a pharyngeal bend portion, and a side wall of the pharyngeal bend portion is provided with an opening.

10. The closed type auxiliary ventilation device according to claim 1, characterized in that: The sealed auxiliary ventilation device also includes an air source connector, which is detachably connected to the ventilation pipe.

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