CN203029796U - Auditory tube balloon catheter - Google Patents

Abstract

A kind of eustachian tube balloon catheter, comprising a drug injection tube, characterized in that an air intake tube and a decompression tube are arranged side by side on both sides of the drug injection tube, the air intake tube, the drug injection tube and the decompression tube The front end is covered with an air bag, and an air inlet, a liquid outlet and a decompression hole are respectively provided, and the air bag communicates with the air inlet. The above-mentioned air bag is long cylindrical or spherical; the ends of the air intake pipe, drug injection pipe and decompression pipe are respectively provided with an air inlet joint, an injection joint and a decompression joint; the length of the medicine injection pipe is within the range of 10CM-30CM, and the pipe With guide wire. The utility model is simple in structure, easy to use, low in cost, economical and durable, and the purpose of opening the Eustachian tube can be achieved through the Eustachian tube balloon catheter, thereby treating secretory otitis media caused by poor function of the Eustachian tube and the like. Injection into the tympanic cavity through the eustachian tube balloon catheter can prolong the action time of the drug in the tympanic cavity and fundamentally avoid the risk of tympanic membrane perforation.

Description

Eustachian tube balloon catheter

technical field

The utility model relates to a medical device, in particular to a Eustachian tube balloon catheter, which is applied to the treatment of Eustachian tube dysfunction, middle ear tympanic ventilation, drainage, flushing and drug injection.

Background technique

The eustachian tube is the only channel through which the middle ear communicates with the outside world. Obstruction of the eustachian tube can lead to various diseases of the middle ear system and eventually lead to hearing loss. The Eustachian tube connects the middle ear cavity with the nasopharynx. Its tympanic orifice opens to the front wall of the tympanic cavity, and the pharyngeal orifice opens to the side wall of the nasopharynx. It is an important factor in maintaining normal ventilation of the middle ear and sound transmission through the ossicular chain. Eustachian tube dysfunction can cause various diseases. For example, conductive deafness caused by secretory otitis media is mostly caused by Eustachian tube dysfunction. Eustachian tube dysfunction is mainly caused by mechanical stenosis caused by swelling of the Eustachian tube mucosa, lack of surfactant in the Eustachian tube, inflammatory or allergic edema of the Eustachian tube mucosa and other factors. Although the hearing level can be improved through the reconstruction of the tympanic cavity and the connection of the ossicular chain structure through increasingly perfect middle ear surgery methods and superb surgical skills, there is currently no effective way to improve the Eustachian tube dysfunction, which leads to long-term complications after middle ear surgery. Results cannot be guaranteed. At present, a variety of cardiovascular and cerebrovascular diseases can be treated with balloon catheter dilation, but so far there is no balloon catheter used to improve Eustachian tube dysfunction, middle ear ventilation, drainage and drug injection. There is no report on the application of balloon catheters in the treatment of eustachian tube and tympanic cavity lesions. The eustachian tube is a hollow tube that connects the tympanic cavity and nasopharynx. The diameter of its narrowest part is only 1-3mm. It can be opened through a balloon catheter to improve the ventilation of the middle ear tympanic cavity and inject drugs into the tympanic cavity. of.

Contents of the invention

The purpose of the utility model is to provide a Eustachian tube balloon catheter to make up for the deficiencies in the prior art.

A kind of eustachian tube balloon catheter, comprising a drug injection tube, characterized in that an air intake tube and a decompression tube are arranged side by side on both sides of the drug injection tube, the air intake tube, the drug injection tube and the decompression tube The front end is respectively provided with an air inlet, a liquid outlet and a decompression hole, and an air bag is sleeved on the front part of the air inlet pipe, the drug injection pipe and the decompression pipe, and the air bag communicates with the air inlet.

The above-mentioned air bag is long cylindrical or spherical.

A radiographic ring is provided at the top of the drug injection tube, and a radiographic ring is provided at both ends of the air bag.

The ends of the air intake pipe, drug injection pipe and decompression pipe are respectively provided with an air intake joint, an injection joint and a decompression joint.

A guide wire is arranged inside the drug injection tube; the length of the drug injection tube is within the range of 10CM-30CM.

Scales are printed on the above-mentioned drug injection tube and guide wire.

The utility model has the advantages of simple structure, convenient use, low cost, economical and durable, and the purpose of opening the Eustachian tube can be achieved through the Eustachian tube balloon catheter, thereby treating the secretion caused by the poor function of the Eustachian tube. Injection into the tympanic cavity through the eustachian tube balloon catheter can prolong the action time of the drug in the tympanic cavity and fundamentally avoid the risk of tympanic membrane perforation.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram showing an enlarged structure of the airbag part of the present invention.

Among them, 1. Radiation imaging ring, 2. Air bag, 3. Air intake tube, 4. Drug injection tube, 5. Decompression tube, 6. Air intake hole, 7. Liquid outlet hole, 8. Decompression hole, 9. Inlet Gas connector, 10, injection connector, 11, decompression connector, 12, guide wire.

Detailed ways

As shown in Figures 1 and 2, a Eustachian tube balloon catheter includes a drug injection tube 4, which is characterized in that an air intake tube 3 and a decompression tube 5 are arranged side by side on both sides of the drug injection tube 4, and The trachea 3, the drug injection tube 4 and the decompression tube 5 together constitute the catheter main body 1; hole 8, and an air bag 2 is sleeved on the front part of the air intake pipe 3, drug injection pipe 4 and decompression pipe 5, and the air bag 2 communicates with the air intake hole 6.

The above-mentioned balloon 2 is long cylindrical (along the axial direction of the catheter main body 1) or spherical.

The top end of the drug injection tube 4 is provided with a radiation developing ring 1 , and the two ends of the airbag 2 are provided with a radiation developing ring 1 .

The ends of the air inlet pipe 3, drug injection pipe 4 and decompression pipe 5 are respectively provided with an air inlet joint 9, an injection joint 10 and a decompression joint 11 for convenient connection with a syringe.

The drug injection tube 4 is provided with a guide wire 12 to guide the injection of the drug solution; the length of the drug injection tube 4 is within the range of 10CM-30CM.

Scales are printed on the above-mentioned drug injection tube 4 and guide wire 12 .

The above airbag 2 can be filled with physiological saline or inert gas. It is placed at the junction of the cartilaginous part of the valley of the Eustachian tube through a nasal endoscope, and the Eustachian tube is sealed and dilated after inflated with air or water.

When using the utility model, the Eustachian tube balloon catheter is inserted into the bone or cartilage of the Eustachian tube through the nasal cavity to the nasopharynx through the nasal cavity, and then passed through the pharyngeal opening of the nasopharynx. The air intake tube 3 injects gas or normal saline into the air bag 2 to inflate the air bag 2, and then closes and expands the Eustachian tube to open the blocked Eustachian tube to treat related diseases caused by poor opening of the Eustachian tube, such as secretory otitis media. Through the injection connector 10 through the drug injection tube 4, the drug is injected into the tympanic cavity, and at the same time, the gas in the tympanic cavity is drawn out through the decompression tube 5 through the decompression connector 11, and the tympanic cavity is decompressed, and the drug can be injected into the tympanic cavity at the same time, because The eustachian tube can be closed by a balloon, so the injected drug can stay in the tympanic cavity to prolong the action time of the drug in the tympanic cavity and treat sudden sensorineural deafness and Meniere's disease and other related diseases.

Claims (7)

1. A Eustachian tube balloon catheter, comprising a drug injection tube (4), characterized in that both sides of the drug injection tube (4) are also arranged side by side with an air intake tube (3) and a decompression tube (5) , the front ends of the air inlet pipe (3), drug injection pipe (4) and decompression pipe (5) are respectively provided with an air inlet (6), a liquid outlet (7) and a decompression hole (8), and a The air bag (2) is sleeved on the front part of the air intake pipe (3), drug injection pipe (4) and decompression pipe (5), and the air bag (2) communicates with the air intake hole (6). 2. The Eustachian tube balloon catheter according to claim 1, characterized in that the above-mentioned balloon (2) is long cylindrical or spherical. 3. The eustachian tube balloon catheter as claimed in claim 1, characterized in that the top of the drug injection tube (4) is provided with a radiographic ring (1), and the two ends of the balloon (2) are provided with a radiographic ring ( 1). 4. The eustachian tube balloon catheter according to claim 1, characterized in that the ends of the air intake tube (3), drug injection tube (4) and decompression tube (5) are respectively provided with an air intake joint (9 ), injection connector (10) and decompression connector (11). 5. The eustachian tube balloon catheter according to claim 1, characterized in that a guide wire (12) is arranged inside the drug injection tube (4). 6. The Eustachian tube balloon catheter according to claim 1, characterized in that the length of the drug injection tube (4) is within the range of 10CM-30CM. 7. The eustachian tube balloon catheter according to claim 5, characterized in that scales are printed on the drug injection tube (4) and the guide wire (12).

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