CN114177090A

CN114177090A - Mouth and nose tube

Info

Publication number: CN114177090A
Application number: CN202210000949.6A
Authority: CN
Inventors: 吴立强; 赵同贞; 杜海岭
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-03-15

Abstract

The invention discloses a nasal tube, which comprises a hose and an elastic rod, wherein the elastic rod is positioned in the hose, the inner wall of the hose is fixedly connected with the side surface of the elastic rod, one end of the hose is fixedly provided with a chuck, as a preferable technical scheme of the invention, the hose comprises an inner soft elastic membrane tube, an outer soft elastic membrane tube is sleeved outside the inner soft elastic membrane tube, two ends of the outer soft elastic membrane tube are fixedly connected with two ends of the inner soft elastic membrane tube, and a closed cavity is arranged between the inner soft elastic membrane tube and the outer soft elastic membrane tube; the oral-nasal tube solves the contradiction that the hose needs a large cross section to meet the requirement of liquid food injection when liquid food is injected and needs a small cross section to reduce the vomiting reaction of a patient when the liquid food is not injected, and improves the comfort of the patient; on the other hand, the hose is used as a channel to assist a patient to take the enteric-coated tablets, so that the enteric-coated tablets are prevented from being crushed to ensure the drug effect of the enteric-coated tablets or the contact damage or the injury of the enteric-coated tablets to gastric mucosa is avoided.

Description

Mouth and nose tube

Technical Field

The invention relates to the technical field of stomach tubes, in particular to a oronasal tube.

Background

Indwelling gastric tubes, which are used to help patients who cannot swallow in special situations deliver the necessary moisture and food, are one of the most important methods for providing or supplementing nutrition in the clinic, and are classified into nasogastric tubes and orogastric tubes.

The patient suffering from skull base fracture combined cerebrospinal fluid leakage, nasal trauma, nasal septum deflection, nasopharyngeal carcinoma, nasal cavity massive hemorrhage and the like who is forbidden to keep the gastric tube through the nasal cavity can be helped to solve the problems of gastrointestinal decompression or gastrointestinal feeding of the patient through the oral cavity by putting the oral gastric tube into the oral cavity, but the foreign body sensation of the oral gastric tube at the throat of the patient is strong, the vomiting reaction of the patient is easily caused, and the discomfort of the patient is caused.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects and provide the oronasal tube, so that the contradiction that the hose needs a large cross section to meet the requirement of liquid food injection when liquid food is injected and needs a small cross section to reduce the vomiting reaction of a patient when the liquid food is not injected is solved, and the comfort of the patient is improved; on the other hand, the hose is used as a channel to assist a patient to take the enteric-coated tablet, and the enteric-coated tablet is not needed to be crushed and taken, so that the drug effect of the enteric-coated tablet is ensured, or the contact damage stimulation or damage of the crushed enteric-coated tablet to gastric mucosa is avoided, and the problems in the background art can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a nasal tube, includes hose and elastic rod, the elastic rod is located the hose, just the inner wall of hose and the side fixed connection of elastic rod, the one end of hose is fixed with the dop.

As a preferred technical scheme of the invention, the hose comprises an inner soft elastic membrane tube, an outer soft elastic membrane tube is sleeved outside the inner soft elastic membrane tube, two ends of the outer soft elastic membrane tube are fixedly connected with two ends of the inner soft elastic membrane tube, and a closed cavity is arranged between the inner soft elastic membrane tube and the outer soft elastic membrane tube.

As a preferred technical scheme of the invention, a plurality of elastic connecting sheets are arranged in a closed cavity between the inner soft elastic membrane tube and the outer soft elastic membrane tube, and the elastic connecting sheets are respectively fixedly connected with the outer side of the inner soft elastic membrane tube and the inner wall of the outer soft elastic membrane tube.

As a preferred technical solution of the present invention: the outer soft elastic membrane tube is provided with a communicating hole which is communicated with the inside and the outside of the outer soft elastic membrane tube at a position close to the chuck, and the communicating hole is connected with one end of the connecting tube.

As a preferable technical solution of the present invention, the elastic rod is provided with a through hole along a length direction thereof.

According to a preferable technical scheme of the invention, a threading rope is arranged on the through hole of the elastic rod in a penetrating way, two ends of the threading rope are connected outside the through hole, and the threading rope is provided with a medicine feeding assembly.

As a preferable technical scheme, the medicine delivery assembly comprises a rope and a piece of wrapping cloth, the side face of the wrapping cloth is connected with one part of the side face of the threading rope, and the rope is pulled to open a slipknot to tie the wrapping cloth.

As a preferable technical scheme of the invention, the medicine delivery assembly comprises wrapping cloth, wherein a binding opening of the wrapping cloth is closed, the wrapping cloth is provided with continuous cut-hole seams, the cut-hole seams divide the wrapping cloth into a first part and a second part, the first part is connected with one part of the side surface of the threading rope, and the second part is connected with one end of the rope.

As a preferred technical solution of the present invention, the cross-sectional area of the lumen of the hose in the deployed state is 2.0-12.0 mm.

As a preferred embodiment of the present invention,

compared with the prior art, the invention has the beneficial effects that:

1. on one hand, the oral-nasal tube solves the contradiction that the hose needs a large cross section to meet the requirement of liquid food injection when liquid food is injected and needs a small cross section to reduce the vomiting reaction of a patient when the liquid food is not injected, and improves the comfort of the patient; on the other hand, the hose is used as a channel to assist a patient to take the enteric-coated tablet, so that the enteric-coated tablet is prevented from being crushed, the drug effect of the enteric-coated tablet is ensured, and/or the contact damage stimulation or damage of the enteric-coated tablet to gastric mucosa is avoided.

2. According to the oronasal tube disclosed by the invention, on one hand, when no liquid food is injected, the cross section area of the tube is reduced due to extrusion of the throat wall and extrusion of the throat, the discomfort of the throat of a patient is reduced, the vomiting reaction of the patient is reduced, the comfort of the patient is improved, the elastic rod serves as a support framework to support and limit the tube, the tube is prevented from being bent and wound or being separated from the stomach, the reliability of the tube is ensured, and the liquid food is conveniently injected through the tube; on the other hand, water or air is injected between the inner soft elastic membrane tube and the outer soft elastic membrane tube, so that the hose is expanded and supported, the liquid food is conveniently injected through the hose, and when the liquid food passes through the hose, the liquid food is subjected to heat exchange with the water or the air in the closed cavity, so that the temperature of the liquid food is close to the body temperature, and the comfort of a patient is improved.

3. According to the oral-nasal tube disclosed by the invention, on one hand, the elastic connecting sheet supports the inner soft elastic membrane tube and the outer soft elastic membrane tube, so that the inner soft elastic membrane tube and the outer soft elastic membrane tube are prevented from being curled and folded to ensure the conduction of the flexible tubes; on the other hand, water is injected between the inner soft elastic membrane tube and the outer soft elastic membrane tube or air is pressurized to expand, the elastic connecting piece enables the inner soft elastic membrane tube and the outer soft elastic membrane tube to synchronously expand outwards, the area of the cross section perpendicular to the length direction in the inner soft elastic membrane tube is increased, and the resistance of the wrapping cloth moving enteric-coated piece on the hose is reduced.

4. According to the mouth and nose tube disclosed by the invention, the water or air is injected into the closed cavity between the inner soft elastic membrane tube and the outer soft elastic membrane tube through the connecting tube, so that the flexible tube is unfolded conveniently and the liquid food is injected conveniently, and after the liquid food is injected, the external injection equipment absorbs the water or air in the closed cavity, so that the flexible tube is shrunken, the cross section area is reduced, and the sense of existence of the flexible tube in the oral cavity is reduced.

Drawings

FIG. 1 is a schematic view of a structure according to the present invention;

FIG. 2 is a schematic view of the partial cross-sectional structure of FIG. 1;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is an enlarged view of the structure at B in FIG. 2;

FIG. 5 is a schematic view of the drug delivery assembly of the present invention;

fig. 6 is a schematic sectional view of the hose of the present invention.

In the figure: 1 rope, 2 reeving, 3 connecting pipes, 4 hoses, 41 inner soft elastic membrane pipes, 42 elastic connecting sheets, 43 outer soft elastic membrane pipes, 5 wrapping cloth, 6 clamping heads, 7 elastic rods and 8 through holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows: referring to fig. 1, 2, 4 and 6, the present embodiment discloses a nasal tube, which includes a flexible tube 4 and an elastic rod 7, wherein the elastic rod 7 is located in the flexible tube 4, the elastic rod 7 is disposed along the length direction of the flexible tube 4, the inner wall of the flexible tube 4 is fixedly connected to the side surface of the elastic rod 7, and a clamp 6 is fixed to one end of the flexible tube 4.

Further, the cross-sectional area of the inner cavity of the hose 4 in the fully opened state is 2.0-12.0 mm.

Further, the wall thickness of the flexible tube 4 is 0.1-3mm, the flexible tube 4 is made of a medical soft rubber film material, a medical soft plastic film material or a medical soft silica gel material, and the cross-sectional area of the flexible tube 4 perpendicular to the length direction thereof is 0.3-2.4 mm.

The elastic rod 7 is a medical elastic rubber rod or a medical elastic silicon rod.

The working process and principle of the embodiment are as follows:

the outside of hose 4 is paintd the paraffin oil lubrication of sterilization, presses down hose 4 and makes hose 4 become flat, and elastic rod 7 drives hose 4 and keeps away from the one end of dop 6 and stretch into patient's oral cavity, then elastic rod 7 drives hose 4 and hugs closely oropharynx back wall according to anatomical radian and pushes away downwards through the esophagus, and hose 4 keeps away from the one end of dop 6 and stretches into in patient's the stomach.

When the oral-nasal tube injects liquid food, the joint of the external liquid food injector or the joint of the external liquid food injection pump is connected with the clamping head 6, the liquid food flows into the stomach of a patient through the clamping head 6 and the hose 4, and after the liquid food injection is finished, the hose 4 is washed by distilled water or normal saline.

This oronasal tube does not pour into the liquid food into, and hose 4 receives throat wall extrusion and oral cavity extrusion to change its cross sectional area of flat diminishes, reduces the uncomfortable sense of patient throat department, reduces patient's vomiting reaction, improves patient's travelling comfort.

The elastic rod 7 serves as a supporting framework to support and limit the hose 4, so that the hose 4 is prevented from being bent and wound or being separated from the stomach, the reliability of the hose 4 is guaranteed, and the fluid food can be conveniently injected through the hose 4.

When the liquid food is not fed, the chuck 6 is provided with an external plugging head.

To prevent the patient from chewing the tube 4 involuntarily, a bite block or oropharyngeal airway may be placed in the oral cavity, with the tube 4 passing through their central circular hole.

The nasogastric tube increases the risk of the bacterial parasitism of the pharyngeal cavity, and the nasal mucosa is easier to be damaged by inserting the nasogastric tube through the nasal cavity than through an oral route, so that the infection chance is increased; and the complication such as nasosinusitis and the like caused by the oppressive injury of the nasal mucosa by the stomach tube can be avoided by orally putting the stomach tube into the stomach tube.

Example two: as shown in fig. 6, the present embodiment discloses a nasal tube, which has a structure substantially the same as that of the first embodiment, except that the flexible tube 4 of the present embodiment includes an inner soft elastic membrane tube 41, an outer soft elastic membrane tube 43 is sleeved outside the inner soft elastic membrane tube 41, opposite ends of the outer soft elastic membrane tube 43 and the inner soft elastic membrane tube 41 are fixedly and hermetically connected, and a sealed cavity is provided between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43.

In this embodiment, the thickness of the outer soft elastic film tube 43 is 0.2 to 2.0mm, and the thickness of the outer soft elastic film tube 43 is 0.2 to 2.0 mm.

The working process and principle of the embodiment are as follows:

water or air is injected between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43, so that the hose 4 is expanded and supported, the liquid food is conveniently injected through the hose 4, and when the liquid food passes through the hose 4, the liquid food is subjected to heat exchange with the water or the air in the closed cavity, so that the temperature and the body temperature of the liquid food are close.

Example three: as shown in fig. 6, the present embodiment discloses a nasal tube, which has a structure substantially the same as that of the second embodiment, except that a plurality of elastic connecting pieces 42 are arranged in the closed cavity between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 of the present embodiment along the length direction of the flexible tube 4, and the elastic connecting pieces 42 are respectively fixedly connected with the outer side of the inner soft elastic membrane tube 41 and the inner wall of the outer soft elastic membrane tube 43; the elastic connecting sheet 42 is an elastic rubber sheet or an elastic silica gel sheet, and the elastic connecting sheet 42 supports the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43, so that the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 are prevented from being curled and folded to ensure the conduction of the hose 4.

Example four: as shown in fig. 1, 2 and 4, the present embodiment discloses a nasal cannula, which has a structure substantially the same as that of the second or third embodiment, except that a communication hole for communicating the inside and the outside of the outer soft elastic membrane tube 43 is formed at a position close to the chuck 6, and the communication hole is connected with one end of the connecting tube 3; when the liquid food needs to be injected, the external injection equipment such as a syringe injects water or air into the closed cavity between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 through the connecting tube 3, so that the hose 4 can be conveniently unfolded to inject the liquid food.

When the liquid diet is not fed, the hose 4 is squeezed and shriveled, and the stomach content is difficult to flow out through the hose 4.

Example five: as shown in fig. 6, the present embodiment discloses a nasal tube, and on the basis of the first, second, third or fourth embodiment, the elastic rod 7 of the present embodiment is provided with a through hole 8 along the length direction thereof; during the process of inserting the oral-nasal tube, sterilized paraffin oil is conveyed to one end of the elastic rod 7 inserted from the through hole 8 through external injection equipment, so that the resistance of the oral-nasal tube in the process of inserting the oral-nasal tube is reduced.

The cross-sectional area of through-hole 8 is 0.3-1.0 mm.

Example six: as shown in fig. 2, 3, 4 and 6, the present embodiment discloses a nasal cannula, which has substantially the same structure as the fifth embodiment, except that a string 2 is inserted into a through hole 8 of an elastic rod 7, both ends of the string 2 are connected to the outside of the through hole 8, and a drug delivery unit is attached to the string 2.

Send medicine subassembly to include rope 1 and parcel cloth 5, the side of parcel cloth 5 and the partly connection of 2 sides of restricting, wherein rope 1 adopts the pulling to open the slipknot and pricks the mouth to parcel cloth 5.

The wrapping cloth 5 is made of a medical plastic film material or a medical silica gel film material.

A gap is arranged between the threading 2 and the through hole 8, so that the insertion of the oral-nasal tube into one end of the elastic rod 7 through the through hole 8 is not affected.

The enteric-coated tablet medicament refers to a tablet which is not disintegrated in gastric juice but can be disintegrated and absorbed in intestinal juice, and is usually formed by coating an enteric coating on the outer surface of a common tablet; when patients with gastric tube retention, tracheal retention or dysphagia are difficult to swallow the enteric-coated tablets, if the enteric-coated tablets are crushed and dissolved and then medicinal powder solution is injected into the patients through a fluid food pipeline or the patients swallow the medicinal powder solution, the medicinal powder solution of the enteric-coated tablets can influence the medicinal effect of the medicine or the medicinal powder solution of the enteric-coated tablets and gastric juice contact damage stimulation or gastric mucosa damage.

Wrapping

cloth

5 and 2 side one portions of reeving are connected through medical glue or medical rope, put into the enteric-coated tablet in wrapping cloth 5, and rope 1 adopts the knot tying of pulling among the prior art to wrap cloth 5 and loosen.

Open and adopt the posture of raising one's head in the patient oral cavity, it has water or air to pour into between interior soft elastic membrane pipe 41 and the outer soft elastic membrane pipe 43, use tweezers or manual pulling rope threading 2 to rotate, rope threading 2 removes to hose 4 through wrapping up 5 pulling enteric coated tablets, the enteric coated tablet of 5 parcels of parcel cloth passes through patient's esophagus and enters into patient's stomach, pulling rope 1, the slipknot is opened in the pulling of rope 1 on parcel cloth 5, it makes rope threading 2 drive wrapping cloth 5 and moves outside the oral cavity to rotate the pulling rope threading 2, and remove wrapping cloth 5 from rope threading 2, the enteric coated tablet of parcel in the wrapping cloth 5 remains in the stomach.

The inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 separate the enteric-coated tablet from the esophagus, so that the damage of the enteric-coated tablet to the tracheal cartilage and the extrusion scratch along with the esophagus are reduced;

in one embodiment, water is injected between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 or air is pressurized to expand, the elastic connecting piece 42 enables the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 to synchronously expand outwards, the area of the cross section in the inner soft elastic membrane tube 41 perpendicular to the length direction of the inner soft elastic membrane tube is increased, and the resistance of the wrapping cloth 5 to drive the enteric-coated tablets on the hose 4 is reduced; in another embodiment, the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 are not expanded under pressure, and when the enteric tablet is too large, the enteric tablet expands the passing flexible tube 4 while moving in the flexible tube 4.

The oral nasal tube provides a new solution for patients who are indwelling oral nasal tubes to take enteric-coated tablets and patients who are difficult to swallow to take enteric-coated tablets, solves the problem that the development of corresponding small-demand medicaments is delayed after new product enteric-coated tablets are approved to be on the market, and solves the problem that small-demand medicaments in pharmacies are not stored or are not stored enough.

Example seven: as shown in fig. 5, the present embodiment discloses a nasal cannula, which has a structure substantially the same as that of the fifth embodiment, except that a threading rope 2 is inserted into a through hole 8 of an elastic rod 7 of the present embodiment, two ends of the threading rope 2 are connected to the outside of the through hole 8 by a knot or adhesive, and a medicine feeding component is mounted on the threading rope 2.

Send medicine subassembly including wrapping up in cloth 5, wherein wrapping up in cloth 5 is tied up a mouthful by medical rope and seals or medical glue connects and seals, is equipped with continuous slot on wrapping up in cloth 5, and slot will wrap up in cloth 5 and fall into first portion and second portion, and first portion and some area of 2 sides of threading are connected, and the one end of second portion and rope 1 is connected.

The hole-cutting seam mainly comprises a plurality of communicating holes for communicating the inside and the outside of the wrapping cloth 5.

The working process and principle of the embodiment are as follows:

the wrapping cloth 5 is connected with one part of the side surface of the threading 2 through medical glue or a medical rope, enteric-coated tablets are placed in the wrapping cloth 5, and the wrapping cloth 5 is tied.

The patient's oral cavity is opened and is adopted the gesture of raising one's head, it has water or air to pour into between interior soft elastic membrane pipe 41 and the outer soft elastic membrane pipe 43, use tweezers or manual pulling rope threading 2 to rotate, rope threading 2 drives the enteric-coated tablet through wrapping cloth 5 and moves to hose 4, the enteric-coated tablet of being wrapped up by wrapping cloth 5 passes through patient's esophagus and enters into patient's stomach, then pulling rope 1 and keeping rope threading 2 not rotate, rope 1 will wrap up cloth 5 and divide into two parts along the slot cut seam, the enteric-coated tablet in wrapping cloth 5 releases, pull out half of detached wrapping cloth 5 through rope 1, it makes half of wrapping cloth 5 turn out and remove from rope threading 2 to rotate rope threading 2.

The inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 separate the enteric-coated tablet from the esophagus, so that the damage of the enteric-coated tablet to the tracheal cartilage and the extrusion scratch to the esophagus are reduced; and interior soft elastic membrane pipe 41 and outer soft elastic membrane pipe 43 pour into water or air and swell, reduce the pressure to throat when pulling rope 1, guarantee the reliability of this device.

When the enteric-coated tablet is too large, the hose 4 is enlarged when the enteric-coated tablet moves in the hose 4; or water is injected between the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 or air is pressurized to swell, the elastic connecting piece 42 enables the inner soft elastic membrane tube 41 and the outer soft elastic membrane tube 43 to synchronously expand outwards, the area of the cross section in the inner soft elastic membrane tube 41, which is vertical to the length direction of the inner soft elastic membrane tube, is increased, and the resistance of the wrapping cloth 5 to drive the enteric-coated tablets on the hose 4 is reduced; preferably, before the enteric-coated tablets enter the hose 4 along with the wrapping cloth 5, medical liquid paraffin is injected into the inner soft elastic film tube 41 or the wrapping cloth 5 is coated with the liquid paraffin, so that the resistance of the enteric-coated tablets moving along with the wrapping cloth 5 in the hose 4 is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A oronasal tube, which is characterized in that: including hose (4) and elastic rod (7), elastic rod (7) are located hose (4), just the inner wall of hose (4) and the side fixed connection of elastic rod (7), the one end of hose (4) is fixed with dop (6).

2. The oronasal tube of claim 1, wherein: the flexible pipe (4) comprises an inner soft elastic membrane pipe (41), the elastic connecting piece (42) is positioned on the outer side of the inner soft elastic membrane pipe (41), an outer soft elastic membrane pipe (43) is sleeved outside the inner soft elastic membrane pipe (41), and a sealed closed cavity is formed between the inner soft elastic membrane pipe (41) and the outer soft elastic membrane pipe (43).

3. The oronasal tube of claim 1 or 2, wherein: a plurality of elastic connecting sheets (42) are arranged in a closed cavity between the inner soft elastic membrane tube (41) and the outer soft elastic membrane tube (43), and the elastic connecting sheets (42) are respectively fixedly connected with the outer side of the inner soft elastic membrane tube (41) and the inner wall of the outer soft elastic membrane tube (43).

4. The oronasal tube of claim 3, wherein: the position of the outer soft elastic membrane tube (43) close to the chuck (6) is provided with a communicating hole which communicates the inside and the outside of the outer soft elastic membrane tube, and the communicating hole is connected with one end of the connecting tube (3).

5. The oronasal tube of any one of claims 1-4, wherein: the elastic rod (7) is provided with a through hole (8) along the length direction.

6. The oronasal tube of claim 5, wherein: the medicine feeding device is characterized in that a through hole (8) of the elastic rod (7) is provided with a threading rope (2) in a penetrating mode, two ends of the threading rope (2) are connected to the outer side of the through hole (8), and the threading rope (2) is provided with a medicine feeding assembly.

7. The oronasal tube of claim 6, wherein: the medicine feeding assembly comprises a rope (1) and wrapping cloth (5), the side face of the wrapping cloth (5) is connected with one part of the side face of the threading cloth (2), and the rope (1) is pulled to open the slipknot to tie the wrapping cloth (5).

8. The oronasal tube of claim 6, wherein: send medicine subassembly including wrapping up in cloth (5), it is sealed that wrapping up in it cloth (5) pricks, be equipped with continuous slot on wrapping up in cloth (5), slot will wrap up in cloth (5) and fall into first portion and second portion, first portion lateral surface and a portion of string threading (2) side are connected, second portion lateral surface and the one end of rope (1) are connected.

9. The oronasal tube of claim 1, wherein: the cross-sectional area of the inner cavity of the hose (4) in the unfolded state is 2.0-12.0 mm.

10. A method for operating and treating an oral nasal cannula is characterized in that:

the outer side of the hose (4) is smeared with sterilized paraffin oil for lubrication, and the hose (4) is pressed and becomes shriveled;

the elastic rod (7) drives one end of the hose (4) far away from the chuck (6) to extend into the oral cavity of a patient;

the elastic rod (7) drives the hose (4) to cling to the rear wall of the oropharynx according to the anatomical radian and push the hose backwards and downwards to pass through the esophagus;

one end of the hose (4) far away from the chuck (6) extends into the stomach of the patient.