Oropharynx and nasopharynx airway and use method thereof

Abstract

The invention discloses an oropharynx and nasopharynx airway and a using method thereof, and relates to the technical field of medical instruments, and the oropharynx and nasopharynx airway comprises an airway body and a flexible film. A channel for ventilation is formed in the ventilation channel body; the flexible film covers the outer wall of the air duct body, a bag cavity is formed between the flexible film and the outer wall of the air duct body, the bag cavity is communicated with a liquid injection pipe, and one end of the liquid injection pipe is used for being communicated with a liquid supply device; wherein the flexible film is provided with a plurality of liquid passing holes, the liquid passing holes have a contraction state and an expansion state, and when the pressure of liquid in the bag cavity is smaller than a first pressure value, the liquid passing holes are in the contraction state; when the liquid pressure in the bag cavity is larger than a first pressure value, the liquid passing hole is in an expanded state. The flexible membrane filled with the liquid inside is directly contacted with human tissues, so that the stimulation to the tissue surface is reduced, the stress response of a patient is reduced, and the smooth operation is facilitated. In addition, the purpose of administration can be achieved by filling liquid medicine into the bag cavity, and specifically, the liquid medicine can be anti-inflammatory medicine, anesthetic and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an oropharyngeal and nasopharyngeal airway and a method of using the same. Background Art

[0002] Oropharyngeal airways are usually made of rubber or plastic, but can also be made of metal or other elastic materials. The commonly used oropharyngeal airways in clinical practice are oval hollow plastic tubes with an "S" shape, including wing edges, a tooth pad part, and a pharyngeal curved part. The nasopharyngeal airway is an artificial airway inserted into the patient's pharynx through the nostrils. Its main function is to prevent the tongue from falling back and reduce the damage to the nasal mucosa caused by suctioning. It can be used for awake patients. However, although the existing oropharyngeal and nasopharyngeal airways are made of elastic materials, they will still cause certain irritation to the tissue surfaces in the patient's nose and mouth, which may damage the mucosa and cause stress reactions in patients. Summary of the invention

[0003] The purpose of the present invention is to provide an oropharyngeal and nasopharyngeal airway and a method of using the same to solve the problems existing in the above-mentioned prior art, facilitate smooth surgery and enhance the patient's treatment experience.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides an oropharyngeal and nasopharyngeal airway, comprising:

[0006] The airway body has a passage for ventilation constructed therein;

[0007] A flexible membrane, wherein the flexible membrane is covered on the outer wall of the airway body, a sac cavity is formed between the flexible membrane and the outer wall of the airway body, the sac cavity is connected to a liquid injection tube, and one end of the liquid injection tube is used to communicate with a liquid supply device; wherein the flexible membrane has a plurality of liquid holes, the liquid holes have a contracted state and an expanded state, when the liquid pressure in the sac cavity is less than a first pressure value, the liquid holes are in a contracted state; when the liquid pressure in the sac cavity is greater than the first pressure value, the liquid holes are in an expanded state.

[0008] Preferably, the liquid passage holes are evenly arranged on the flexible membrane.

[0009] Preferably, the flexible membrane is arranged around the circumference of the airway body and forms a cuff.

[0010] Preferably, when the liquid pressure in the cyst cavity is greater than a first pressure value, the outer surface of the flexible membrane is uneven, and a liquid storage cavity is formed between the concave portion of the flexible membrane and the human tissue surface.

[0011] The present invention also provides a method for using the oropharyngeal and nasopharyngeal airway, comprising:

[0012] Step 1: Place the oropharyngeal and nasopharyngeal airway into the oropharyngeal and nasopharyngeal airway;

[0013] Step 2: Fill the cyst cavity with fluid.

[0014] Preferably, in step 2, the capsule cavity is filled with liquid medicine; and the liquid medicine is first filled into the capsule cavity to make its pressure greater than a first pressure value, and then the pressure value of the liquid medicine in the capsule cavity is reduced until it is lower than the first pressure value.

[0015] Preferably, in step 2, the capsule cavity is filled with liquid medicine; and the liquid medicine is first filled into the capsule cavity so that its pressure is greater than the second pressure value, and then the pressure value of the liquid medicine in the capsule cavity is reduced until it is lower than the first pressure value. When the pressure value of the liquid medicine in the capsule cavity is greater than the second pressure value, the liquid medicine can be ejected from the liquid hole.

[0016] Compared with the prior art, the present invention has achieved the following technical effects:

[0017] The present invention uses a flexible membrane filled with liquid inside to directly contact human tissue, thereby reducing stimulation to the tissue surface, reducing the patient's stress response, and facilitating smooth surgery. In addition, the purpose of drug administration can be achieved by filling the cyst cavity with liquid medicine, specifically, the liquid medicine can be anti-inflammatory drugs, anesthetics, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of placing an oropharyngeal airway in the human throat;

[0020] Figure 2 A schematic diagram of the structure of an embodiment of the present invention;

[0021] Figure 3 It is a structural schematic diagram of another embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the flexible membrane in the expanded state;

[0023] Figure 5 is another structural schematic diagram of the flexible membrane in an expanded state;

[0024] In the figure: 1-oropharyngeal airway; 2-airway body; 3-flexible membrane; 4-channel; 5-cyst cavity; 6-human tissue surface; 8-liquid storage cavity. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Combine the following Figures 1 to 5 , describing an embodiment of the present invention.

[0028] like Figure 1 As shown, it only illustrates a schematic diagram of an oropharyngeal airway 1 placed in the human throat. The nasopharyngeal airway is similar in structure, except that the insertion position is different and the cross-sectional area of ​​the nasopharyngeal airway is smaller.

[0029] The present invention provides an oropharyngeal and nasopharyngeal airway, which can be divided into an oropharyngeal airway and a nasopharyngeal airway. Both the oropharyngeal airway and the nasopharyngeal airway include: an airway body 2 and a flexible membrane 3.

[0030] A channel 4 for ventilation is constructed in the airway body 2; a flexible membrane 3 is covered on the outer wall of the airway body 2, and a sac cavity 5 is formed between the flexible membrane 3 and the outer wall of the airway body 2, and the sac cavity 5 is connected to a liquid injection tube, and one end of the liquid injection tube is used to communicate with a liquid supply device; wherein, the flexible membrane 3 has a plurality of liquid holes, and the liquid holes have a contraction state and an expansion state. When the liquid pressure in the sac cavity 5 is less than a first pressure value, the liquid holes are in a contraction state; when the liquid pressure in the sac cavity 5 is greater than the first pressure value, the liquid holes are in an expansion state.

[0031] The present invention uses a flexible membrane 3 filled with liquid inside to directly contact human tissue, thereby reducing stimulation to the human tissue surface 6, reducing the patient's stress response, and facilitating smooth surgery. In addition, the purpose of drug administration can be achieved by filling the capsule cavity 5 with liquid medicine, and specifically, the liquid medicine can be anti-inflammatory drugs, anesthetics, etc.

[0032] It can be seen that the flexible membrane 3 must have a certain elasticity. When the liquid pressure is lower than the first pressure value, the flexible membrane 3 shrinks and closes the liquid hole due to the rebound of its own material. When the pressure is greater than or equal to the first pressure value, the elastic force of the material is overcome and the liquid hole expands and opens.

[0033] When in use, the oropharyngeal and nasopharyngeal airways are first placed in the oropharyngeal and nasopharyngeal airways, and then the bag cavity 5 is filled with liquid to prevent the airway body 2 from directly contacting the human tissue surface 6. When medication is needed, the bag cavity 5 is filled with liquid medicine; and the bag cavity 5 is first filled with liquid medicine so that its pressure is greater than the first pressure value, and then the pressure value of the liquid medicine in the bag cavity 5 is reduced until it is lower than the first pressure value.

[0034] In some embodiments, the flexible membrane 3 is evenly provided with liquid holes. Of course, liquid holes can also be provided on part of the flexible membrane 3 as required. For example, when only a part of the surface of the oropharyngeal airway 1 contacts the throat tissue surface during use, liquid holes can be evenly provided only on the corresponding part.

[0035] In some embodiments, such as Figure 2-Figure 3 As shown, the flexible membrane 3 is arranged around the circumference of the airway body 2 and forms a cuff.

[0036] The cuff in this embodiment covers most of the surface of the airway body 2 , further reducing the possibility of the airway body 2 contacting the human tissue surface 6 .

[0037] It is understandable that in other embodiments, only a portion of the surface of the airway body 2 may be covered with a layer of flexible film 3 to form the sac cavity 5.

[0038] In some embodiments, such as Figure 4-5 As shown, when the liquid pressure in the capsule cavity 5 is greater than the first pressure value, the outer surface of the flexible membrane 3 is uneven, and the concave part of the flexible membrane 3 and the human body tissue surface 6 form a liquid storage cavity 8.

[0039] In this embodiment, by providing an uneven surface, it is possible to avoid the flexible membrane 3 being in close contact with the human tissue surface 6, which would cause the human tissue surface 6 to block the liquid hole, and the formed liquid storage cavity 8 can allow the drug solution to be temporarily retained on the human tissue surface 6 to avoid its loss. In other words, this embodiment can slow down the flow rate of the drug solution on the human tissue surface 6, thereby improving the drug administration effect.

[0040] The above-mentioned unevenness may be corrugated unevenness or pit-shaped unevenness, which will not be limited here.

[0041] The present invention also provides a method for using the oropharyngeal and nasopharyngeal airway, comprising:

[0042] Step 1: Place the oropharyngeal and nasopharyngeal airway into the oropharyngeal and nasopharyngeal airway;

[0043] Step 2: Fill the cystic cavity 5 with liquid.

[0044] In step 2, the capsule cavity 5 is filled with liquid medicine; and the liquid medicine is first filled into the capsule cavity 5 to make its pressure greater than the first pressure value, and then the pressure value of the liquid medicine in the capsule cavity 5 is reduced until it is lower than the first pressure value.

[0045] In another embodiment, different from the above embodiment, in step 2, the capsule cavity 5 is filled with liquid medicine; the liquid medicine is first filled into the capsule cavity 5 to make its pressure greater than the second pressure value, and then the pressure value of the liquid medicine in the capsule cavity 5 is reduced until it is lower than the first pressure value. When the pressure value of the liquid medicine in the capsule cavity 5 is greater than the second pressure value, the liquid medicine can be ejected from the liquid passage hole. The second pressure value is greater than the first pressure value.

[0046] It should be noted that the first pressure value and the second pressure value need to be determined based on experiments, and there is no fixed value for them. The magnitudes thereof are related to the type of the flexible membrane 3 used.

[0047] The flexible films 3 described in any of the above embodiments are all medical films.

[0048] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An oropharyngeal and nasopharyngeal airway, characterized in that: include: The airway body has a passage for ventilation constructed therein; A flexible membrane, the flexible membrane is covered on the outer wall of the airway body, a sac cavity is formed between the flexible membrane and the outer wall of the airway body, the sac cavity is connected to a liquid injection tube, one end of the liquid injection tube is used to communicate with a liquid supply device; wherein the flexible membrane has a plurality of liquid holes, the liquid holes have a contraction state and an expansion state, and when the liquid pressure in the sac cavity is less than a first pressure value, the liquid holes are in a contraction state; When the liquid pressure in the sac cavity is greater than the first pressure value, the liquid passage hole is in an expanded state.

2. The oropharyngeal and nasopharyngeal airway according to claim 1, characterized in that: The liquid holes are evenly arranged on the flexible film.

3. The oropharyngeal and nasopharyngeal airway according to claim 1, characterized in that: The flexible membrane is disposed around the circumference of the airway body and forms a cuff.

4. The oropharyngeal and nasopharyngeal airway according to claim 1, characterized in that: When the liquid pressure in the cyst cavity is greater than the first pressure value, the outer surface of the flexible membrane is uneven, and the concave part of the flexible membrane forms a liquid storage cavity with the human tissue surface.

5. A method for using an oropharyngeal or nasopharyngeal airway, characterized in that: include: Step 1: Place the oropharyngeal and nasopharyngeal airway into the oropharyngeal and nasopharyngeal airway; Step 2: Fill the cyst cavity with fluid.

6. The method for using the oropharyngeal and nasopharyngeal airway according to claim 5, characterized in that: In step 2, the capsule cavity is filled with liquid medicine; and the liquid medicine is firstly filled into the capsule cavity to make its pressure greater than the first pressure value, and then the pressure value of the liquid medicine in the capsule cavity is reduced until it is lower than the first pressure value.

7. The method for using the oropharyngeal and nasopharyngeal airway according to claim 5, characterized in that: In step 2, the capsule cavity is filled with liquid medicine; and the liquid medicine is first filled into the capsule cavity so that its pressure is greater than the second pressure value, and then the pressure value of the liquid medicine in the capsule cavity is reduced until it is lower than the first pressure value. When the pressure value of the liquid medicine in the capsule cavity is greater than the second pressure value, the liquid medicine can be ejected from the liquid hole.

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