An oropharyngeal airway for anaesthesia

Abstract

The utility model relates to medical instrument technical field, concretely relates to a mouth and pharynx airway for anesthesia, including tooth pad pipe, the fixed part of setting in the first end of tooth pad pipe, with the second end intercommunication of tooth pad pipe pharyngeal curved pipe and set up on the drainage mechanism of pharyngeal curved pipe, the fixed part includes the outer flange for with on patient face and fit, the drainage mechanism includes the cut-off air bag of being placed in the outer wall of pharyngeal curved pipe away from tooth pad pipe one end and collection capsule, and cut-off air bag and collection capsule are respectively through channel one and channel two and the upper space of outer flange intercommunication, and the lateral wall of collection capsule is provided with a plurality of liquid inlet hole that will the inside and outside space of collection capsule intercommunication, in the scheme, patients can lie on the sickbed and carry out the leg exercise of bending and the leg exercise of stretching, need not stand and carry out the exercise, and the leg is less, and it is convenient and safe.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to an oropharyngeal airway for anesthesia. Background Technology

[0002] An oropharyngeal airway, also known as an oropharyngeal ventilator, is a non-tracheal tube-based, non-invasive ventilation system that prevents the tongue from falling back, rapidly opens the airway, and establishes a temporary artificial airway. During treatment or examination of anesthetized patients, the muscles of the floor of the mouth and pharynx, which support the tongue and maintain upper airway patency, relax, causing the tongue and epiglottis to fall back into the posterior pharyngeal wall, leading to upper airway obstruction. Therefore, an oropharyngeal airway needs to be inserted into the patient's mouth during anesthesia. The proximal end of the oropharyngeal airway can lift the tongue and epiglottis from the posterior pharyngeal wall, thus preventing upper airway obstruction during anesthesia. However, existing oropharyngeal airways for anesthesia only maintain upper airway patency and lack effective secretion drainage. They cannot prevent saliva and other secretions from flowing into the patient's airway, causing discomfort and increasing the risk of aspiration. Therefore, it is necessary to design an oropharyngeal airway for anesthesia to address the aforementioned problems. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an oropharyngeal airway for anesthesia, so as to solve the problem mentioned in the background art that the existing oropharyngeal airways lack effective secretion drainage function.

[0004] To solve the above-mentioned technical problems, the basic solution adopted by this utility model is: an oropharyngeal airway for anesthesia, including a dental pad tube, a fixing part disposed at the first end of the dental pad tube, a pharyngeal bend tube communicating with the second end of the dental pad tube, and a drainage mechanism disposed on the pharyngeal bend tube. The fixing part includes an outer flange for fitting against the patient's face. The drainage mechanism includes a choking balloon and a collection balloon disposed on the outer wall of the end of the pharyngeal bend tube away from the dental pad tube. The choking balloon and the collection balloon are respectively connected to the upper space of the outer flange through channel one and channel two. The lower ends of channel one and channel two are respectively connected to the inner cavities of the choking balloon and the collection balloon. The upper ends of channel one and channel two pass through the tube wall of the pharyngeal bend tube and then through the tube wall of the dental pad tube and penetrate upward through the outer flange. The upper ends of channel one and channel two are respectively provided with control valve one and control valve two for controlling the opening and closing of channel one and channel two. The side wall of the collection balloon is provided with multiple inlet holes that connect the inner and outer spaces of the collection balloon.

[0005] In the above basic scheme, when using it, the pharyngeal bend tube is inserted into the patient's larynx, the patient bites down on the bite block tube, and the outer wing edge is pressed against the patient's mouth. At this time, the chokehold cuff is not filled with gas, and the collection bag is not filled with liquid. Both are pressed against the outer wall of the pharyngeal bend tube. Open control valve two, use the external negative pressure device to connect with channel two, open control valve one, and use the hand-squeezed simple cuff to fill the chokehold cuff with gas through channel one. The chokehold cuff expands and contacts the inner wall of the larynx to prevent saliva and other substances produced in the mouth from flowing downwards past the chokehold cuff. The saliva produced in the mouth flows downwards to the area near the chokehold cuff and then enters the collection bag through the liquid inlet. It is then absorbed by the negative pressure device through channel two.

[0006] Furthermore, the fixation component also includes an inner flange located between the patient's lips and gums during use. This inner flange, positioned between the lips and gums, effectively prevents rotation of the entire oropharyngeal airway, improving the fixation effect.

[0007] Furthermore, to reduce mucosal dryness in the respiratory tract when the patient is breathing through their mouth, a closed annular groove is provided in the side wall of the bite pad tube near the outer wing. The bite pad tube is provided with multiple mist outlets that connect the annular groove to the inner cavity of the bite pad tube. The annular groove is connected to an external nebulizer through a trachea. By continuously releasing saline atomized particles into the inner cavity of the bite pad tube, the patient's mucosal dryness is reduced.

[0008] Furthermore, the collection bag is provided with absorbent cotton for absorbing liquid.

[0009] Furthermore, the lower end of the first channel is connected to the lower inner cavity of the collection bag.

[0010] Furthermore, the outer flange, inner flange, pharyngeal bend tube, and dental pad tube are all made of medical-grade silicone.

[0011] Furthermore, both the collection bag and the interception airbag are made of elastic rubber.

[0012] Compared with existing technologies, the oropharyngeal airway for anesthesia in this scheme has at least the following beneficial effects:

[0013] I. In this solution, an interception airbag and a collection bag are used together. After the interception airbag is inflated, it contacts the inner wall of the patient's larynx to intercept secretions that may flow downward. The collection bag absorbs the intercepted secretions and removes them through a negative pressure device, effectively preventing secretions such as saliva from the mouth from flowing back into the patient's airway.

[0014] II. In this scheme, the outer and inner flanges are used together to fix the entire oropharyngeal passage, which can effectively prevent the pharyngeal tube from rotating in the patient's larynx. The expanded choke balloon also plays a role in preventing the pharyngeal tube from rotating in the patient's larynx. The fixation effect is good. The outer flange of this scheme is located outside the patient's lips, so that the upper end of the dental pad tube is located outside the oral cavity, which can prevent the risk of the dental pad tube being blocked when the patient's upper and lower lips are closed.

[0015] 3. This protocol can add saline nebulized particles into the patient's respiratory tract, effectively reducing discomfort caused by dry mucous membranes. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of an oropharyngeal airway for anesthesia according to the present invention, viewed from the front.

[0018] Figure 2 for Figure 1 Enlarged view of section A.

[0019] Figure 3 for Figure 1 Enlarged view of section B in the middle.

[0020] The meanings of the labels in the attached diagram are as follows:

[0021] Dental pad tube-10; Annular groove-101; Mist outlet-102;

[0022] Pharyngeal duct-20; outer wing edge-31; inner wing edge-32;

[0023] Interception airbag-41; Collection bag-42; Liquid inlet-421; Absorbent cotton-422; Channel 1-43; Channel 2-44;

[0024] Control valve 1-51; Control valve 2-52;

[0025] Trachea-60. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application 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 application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] This embodiment provides an oropharyngeal airway for anesthesia, such as... Figures 1-3 As shown, it includes a dental pad tube 10, a fixing part disposed at the first end of the dental pad tube 10, a pharyngeal bend tube 20 communicating with the second end of the dental pad tube 10, and a drainage mechanism disposed on the pharyngeal bend tube 20. The dental pad tube 10 is a tubular body made of medical silicone. The dental pad tube 10 has a certain resistance to deformation so that the dental pad tube 10 will not be deformed by biting when the patient bites down on it and thus cannot pass through the airway.

[0029] The fixing part includes an outer flange 31 for fitting against the patient's face during use and an inner flange 32 located between the patient's lips and gums. Both the outer flange 31 and the inner flange 32 are made of medical-grade silicone. The outer flange 31 is disposed on an annular plate on the upper end face of the dental pad tube 10 and is fixedly connected to the upper end face of the dental pad tube 10. The middle part of the outer flange 31 is provided with a through hole that mates with the inner cavity of the dental pad tube 10 to allow air to enter the inner cavity of the dental pad tube 10. The shape of 1 is an oval that fits the patient's face around the mouth to facilitate a close fit. The inner wing 32 is located below the outer wing 31. The inner wing 32 is sleeved on the outer wall of the dental pad tube 10 and fixedly connected to the dental pad tube 10. The shape of the inner wing 32 is an annular plate that can be easily locked between the patient's gums and lips. The inner wing 32 locked between the lips and gums can effectively prevent the rotation of the entire oropharyngeal airway and improve the fixation effect of the entire oropharyngeal airway.

[0030] Combination Figure 1 , Figure 2As shown, the pharyngeal bend tube 20 is a curved tubular body made of medical silicone. The upper end of the pharyngeal bend tube 20 is fixedly connected to the lower end of the dental pad tube 10, and the upper port of the pharyngeal bend tube 20 communicates with the lower port of the dental pad tube 10. The drainage mechanism includes a diversion bladder 41 and a collection bladder 42 placed on the outer wall of the lower end of the pharyngeal bend tube 20. Both the collection bladder 42 and the diversion bladder 41 are made of elastic rubber. The diversion bladder 41 and the collection bladder 42 are fixedly connected to the pharyngeal bend tube 20. The collection bladder 42 is located between the diversion bladder 41 and the dental pad tube 10, and is positioned close to the diversion bladder 41. The side wall of the collection bladder 42 is provided with multiple inlet holes 421 that connect the inner and outer spaces of the collection bladder 42. The collection bladder 42 is provided with absorbent cotton 4 for absorbing liquid. 22. The intercepting airbag 41 and the collecting bag 42 are respectively connected to the upper space of the outer flange 31 through channel one 43 and channel two 44. Specifically, the lower end of channel one 43 is sealed and connected to the inner cavity of the intercepting airbag 41, and the upper end of channel one 43 passes through the wall of the pharyngeal bend tube 20 and then through the wall of the dental pad tube 10 and penetrates upward through the outer flange 31. A control valve one 51 for controlling the opening / closing of channel one 43 is provided at the upper port of channel one 43. The lower end of channel two 44 is connected to the lower inner cavity of the collecting bag 42, and the upper end of channel two 44 passes through the wall of the pharyngeal bend tube 20 and then through the wall of the dental pad tube 10 and penetrates upward through the outer flange 31. A control valve two 52 for controlling the opening / closing of channel two 44 is provided at the upper port of channel two 44.

[0031] Combination Figure 1 , Figure 3 As shown, in order to reduce the dryness of the respiratory tract mucosa when the patient is breathing through their mouth, a closed annular groove 101 is provided in the side wall of the bite pad tube 10 near the outer flange 31. The bite pad tube 10 is provided with a plurality of mist outlet holes 102 that connect the annular groove 101 to the inner cavity of the bite pad tube 10. The annular groove 101 is connected to an external nebulizer through the trachea 60. By continuously releasing saline atomized particles into the inner cavity of the bite pad tube 10, the patient's mucosal dryness is reduced.

[0032] When using this method, insert the pharyngeal bend tube 20 into the patient's larynx, have the patient bite down on the bite block tube 10 and press down on the patient's tongue to prevent the tongue from falling down, so that the patient's mouth is in an open position, with the outer wing 31 close to the patient's mouth surface and the inner wing 32 located between the patient's lips and gums. At this time, the chokehold cuff 41 is not filled with gas and the collection cuff 42 is not filled with liquid, both are attached to the outer wall of the pharyngeal bend tube 20, open the control valve 2 52, use the external negative pressure device to connect with the channel 2 44, open the control valve 1 51, and use the hand-operated simple The airbag is inflated by gas into the intercepting airbag 41 through channel 43, causing the intercepting airbag 41 to expand and contact the inner wall of the throat. This prevents saliva and other substances produced in the mouth from flowing downwards past the intercepting airbag 41. The saliva produced in the mouth flows downwards to the vicinity of the intercepting airbag 41 and then enters the collecting bag 42 through the liquid inlet 421. It is absorbed by the absorbent cotton 422. The absorbent cotton 422 expands after absorbing the liquid. When the liquid that has entered the collecting bag 42 is enriched and accumulated at the bottom of the collecting bag 42 in the absorbent cotton 422, it is then extracted from the collecting bag 42 by the negative pressure device through channel 44.

[0033] In this design, a diversion bag 41 and a collection bag 42 are used in conjunction. After inflation, the diversion bag 41 contacts the inner wall of the patient's larynx to intercept any secretions that may flow downwards. The collection bag 42 absorbs the intercepted secretions and removes them using a negative pressure device, effectively preventing the reflux of saliva and other secretions from the mouth into the patient's airway. The outer and inner flanges 31 and 32 are used to fix the entire oropharyngeal passage, effectively preventing the pharyngeal tube 20 from rotating within the patient's larynx. The inflated diversion bag 41 also prevents the pharyngeal tube 20 from rotating within the patient's larynx, resulting in good fixation. The outer flange 31 is located outside the patient's lips, so the upper end of the bite pad tube 10 is outside the oral cavity, preventing the risk of the bite pad tube 10 being blocked when the patient's upper and lower lips are closed. This design can add saline nebulized particles into the patient's airway, effectively reducing discomfort caused by mucosal dryness.

[0034] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An oropharyngeal airway for anesthesia, characterized in that: The device includes a dental pad tube, a fixing part disposed at the first end of the dental pad tube, a pharyngeal bend tube communicating with the second end of the dental pad tube, and a drainage mechanism disposed on the pharyngeal bend tube. The fixing part includes an outer flange for conforming to the patient's face. The drainage mechanism includes a choking balloon and a collection balloon disposed on the outer wall of the end of the pharyngeal bend tube away from the dental pad tube. The choking balloon and the collection balloon are respectively connected to the upper space of the outer flange through a channel one and a channel two. The lower ends of the channel one and the channel two are respectively connected to the inner cavities of the choking balloon and the collection balloon. The upper ends of the channel one and the channel two pass through the wall of the pharyngeal bend tube and then through the wall of the dental pad tube, penetrating upward through the outer flange. The upper ends of the channel one and the channel two are respectively provided with a control valve one and a control valve two for controlling the opening and closing of the channel one and the channel two. The side wall of the collection balloon is provided with multiple inlet holes that connect the inner and outer spaces of the collection balloon.

2. The oropharyngeal airway for anesthesia according to claim 1, characterized in that: The fixation part also includes an inner wing edge located between the patient's lips and gums during use.

3. The oropharyngeal airway for anesthesia according to claim 2, characterized in that: The dental pad tube has a closed annular groove in the side wall near the outer flange, and the dental pad tube has a plurality of mist outlet holes that connect the annular groove to the inner cavity of the dental pad tube. The annular groove is connected to an external atomizer through an air pipe.

4. The oropharyngeal airway for anesthesia according to claim 1, characterized in that: The collection bag is equipped with absorbent cotton for absorbing liquid.

5. The oropharyngeal airway for anesthesia according to claim 1, characterized in that: The lower end of the first channel is connected to the lower inner cavity of the collection bag.

6. The oropharyngeal airway for anesthesia according to claim 2, characterized in that: The outer wing, inner wing, pharyngeal bend tube, and dental pad tube are all made of medical-grade silicone.

7. The oropharyngeal airway for anesthesia according to claim 1, characterized in that: Both the collection bag and the interception airbag are made of elastic rubber.

Images