CN106075702A - Medical per os Eustachian tube sacculus dilating catheter is special inserts apparatus - Google Patents

Abstract

According to the present invention, a special insertion instrument for medical transoropharyngeal tube dilatation catheter includes a main pipe, a push tube and a guide tube, the push tube passes through the main tube and connects the guide tube, and the guide tube is away from One end of the main pipe is provided with a bending device adapted to the position of the Eustachian tube. The bending device includes a first tube connected to the guide tube at a certain angle, and the other end of the first tube bends the second tube. The tube, the plane formed by the guide tube and the first tube, and the plane formed by the first tube and the second tube are located in different planes. The balloon dilatation catheter of the present invention is inserted into the Eustachian tube through the special insertion device, and the dilation balloon is injected into the dilation balloon through the pressure pump. The eustachian tube that is narrow or blocked is easy to operate and enters the eustachian tube through the mouth to reduce the possibility of mucosal damage caused by repeated entry and exit of instruments through the nasal cavity.

Description

Medical transoropharynx tube balloon dilatation catheter special implantation device

technical field

The invention relates to an insertion device, in particular to a special insertion device for a medical transoral eustachian tube balloon dilatation catheter.

Background technique

For a type of middle ear disease caused by mechanical obstruction of the eustachian tube, such as adhesive otitis media, refractory secretory otitis media, etc., it is routine to perform tympanic membrane puncture, incision or tube placement. On the one hand, this method will damage the tympanic membrane , after extubation, the improvement of tympanic adhesions is not obvious, or tympanic effusion occurs repeatedly, and on the other hand, there may be residual tympanic membrane perforation that requires secondary surgical repair. Balloon dilation of Eustachian tube, dilating the narrow Eustachian tube with a balloon, improves the function of the Eustachian tube, enables it to better regulate the pressure in the tympanic cavity, maintains the balance between the pressure in the tympanic cavity and the outside world, restores the inner environment of the middle ear, and achieves a better effect. It is good for treating adhesive otitis media, refractory secretory otitis media and other middle ear diseases. The surgery is non-invasive and painless. The specific method is, under general anesthesia or enhanced anesthesia with superficial anesthesia, put a special balloon catheter into the eustachian tube through the nasal cavity through a special instrument, inject water into the balloon and pressurize it, and when the balloon reaches a certain pressure , maintain the pressure for 2 minutes, then release the pressure, take out the balloon catheter, and the operation is completed.

This operation also has a therapeutic effect on ear fullness, middle ear effusion, and adhesion after tympanoplasty, which can improve the curative effect and improve hearing.

However, in the prior art, special instruments are put into the Eustachian tube through the nasal cavity. Because many patients have nasal septum deviation, nasal polyps and other nasal cavity narrowing factors, the introduction tube is limited to pass through the nasal cavity smoothly, and most pediatric patients have nasopharyngeal adenoids. Body hypertrophy, it is difficult to clearly locate the Eustachian tube during transnasal surgery. The above factors make it difficult for doctors to operate. At the same time, nasal endoscopic surgery requires high technical skills for doctors.

Contents of the invention

The invention overcomes the disadvantages of the prior art and provides a special insertion device for a medical transoropharynx tube balloon dilatation catheter, which is easy to operate, easy for doctors to grasp, fast in insertion speed and accurate in insertion position.

In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

A special insertion instrument for medical transoropharyngeal tube dilation catheter, comprising a main tube, a push tube and a guide tube, the push tube passes through the main tube to connect the guide tube, and the guide tube is far away from the main tube One end is provided with a bending device adapted to the position of the Eustachian tube.

Further, the pipe bending device includes a first pipe connected with the guide pipe at a certain angle, the other end of the first pipe bends the second pipe, the plane formed by the guide pipe and the first pipe and The planes formed by the first tube and the second tube are located on different planes.

Further, the angle between the guide tube and the first tube is 120 degrees, and the angle between the first tube and the second tube is 30 degrees, 45 degrees or 70 degrees.

Further, the end of the second tube away from the first tube is provided with a trumpet-shaped opening.

Further, the main pipe is provided with a radial notch, and the push pipe is provided with a guide block corresponding to the radial notch.

Further, the push pipe is also provided with a sleeve, and the sleeve is threadedly connected to the main pipe.

Further, the side of the main pipe is provided with a knob for fixing the position of the push tube.

Further, several supporting claws are hinged at the outlet of the second pipe, and one end of the supporting claws is connected with a control line.

Compared with prior art, the beneficial effect of the present invention is:

According to the present invention, a medical transoropharynx tube balloon dilatation catheter is specially inserted into the device. The balloon dilation catheter is inserted into the Eustachian tube through the special device, and the expansion balloon is injected into the dilation balloon through a pressure pump. It will squeeze the cartilage of the Eustachian tube and last for a period of time to expand the narrow or blocked Eustachian tube. It is easy to operate and enter the Eustachian tube through the mouth to reduce the possible mucosal damage caused by repeated entry and exit of the instrument through the nasal cavity.

Description of drawings

Accompanying drawing is used for providing further understanding to the present invention, is used for explaining the present invention together with the embodiment of the present invention, does not constitute limitation of the present invention, in accompanying drawing:

Fig. 1 is a schematic diagram of an exploded structure of a medical transoropharynx tube balloon dilatation catheter according to the present invention;

Fig. 2 is a schematic diagram of the assembly structure of the present invention.

In the figure, 1——supervisor; 2——push tube;

3——guiding tube; 4——grip;

5——limiting protrusion; 6——first tube;

7——Second tube; 8——Radial notch;

9——guide block; 10——casing;

11 - Knob.

detailed description

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

Referring to Figures 1 and 2, a special insertion device for medical transoropharyngeal tube dilatation catheter according to the present invention includes a main tube 1, a push tube 2 and a guide tube 3, and both sides of the main tube 1 are provided with gripping parts 4. A gripping part 4 is provided on one side of the push tube 2, and the push tube 2 passes through the main pipe 1 to connect to the guide tube 3, and the guide tube 3 is provided with a limit protrusion 5 at the connection position with the push tube 2 to prevent the guide tube 3 from being overwhelmed. push.

The end of the guide tube 3 far away from the main pipe 1 is provided with a bender device adapted to the position of the Eustachian tube. The bender device includes a first tube 6 connected to the guide tube 3 at an angle of 120 degrees. The other end of the first tube 6 is bent The second tube 7, the angle between the first tube 6 and the second tube 7 includes three angles of 30 degrees, 45 degrees or 70 degrees, 45 degrees and 70 degrees are usually used for adults, and 30 degrees are usually used for children. The plane formed by a tube 6 and the plane formed by the first tube 6 and the second tube 7 are located in different planes. The end of the second tube 7 away from the first tube 6 is provided with a trumpet-shaped opening, and the first tube 6 bypasses the soft palate. Part, the first tube and the second tube are located in the same plane A. Assuming that the introduction tube is located on plane B, and plane B is perpendicular to the horizontal plane, the acute angle between plane A and plane B is 60 degrees. Through the design of the first tube 6 and the second tube 7 and their angles, the guide tube 3 enters the oral cavity. One tube 6 bypasses the soft palate, and the second tube 7 sends the balloon dilation catheter into the Eustachian tube through the pharyngeal opening of the Eustachian tube, which is very convenient to operate.

The main pipe 1 is provided with a radial gap 8, and the push pipe 2 is provided with a guide block 9 corresponding to the radial gap 8. position, the guide block 9 moves in the radial notch 8 to realize the linear movement of the push tube 2 .

The side of the main pipe 1 is provided with a knob 11 for fixing the position of the push tube 2. When the push tube 2 is moved to a proper position, the push tube 2 can be locked by turning the knob 11.

The top of the push tube (that is, the end away from the introduction tube) is designed with internal threads, and the plastic molded expansion part at the end of the eustachian tube balloon catheter is designed with corresponding threads. After the device is connected, the plastic molded part is fixed on the top of the push tube. , using the thrust of the push tube, the balloon is sent out from the second tube and enters the Eustachian tube.

Further, the exit position of the second tube 7 is hinged with several support claws, one end of the support claw is connected to the control wire, and the end of the support claw is pushed by the control wire, so that the pharyngeal opening of the Eustachian tube can be stretched, so that the balloon dilation catheter can enter the Eustachian tube easily. Tube.

Its operating principle is:

Under the guidance of endoscopic direct vision, the balloon part of the balloon dilation catheter is inserted into the Eustachian tube parallel to the direction of the Eustachian tube, and the balloon is injected with water through the pressure pump to expand the balloon. The inflation pressure of the balloon squeezes the cartilage of the Eustachian tube Compression for a certain period of time to dilate a narrowed or blocked Eustachian tube.

The main steps of the operation:

Local anesthesia or general anesthesia can be selected. First, fix the knob 11, fix the push tube 2 at the distal position, and insert the balloon dilation catheter through the push tube 2 into the guide tube 3. At this time, the balloon part is completely hidden in the guide tube. In tube 3, slowly push the balloon dilation tube into the Eustachian tube along the guide tube 3. There should be no resistance during the pushing process to avoid damage to the surface mucosa of the Eustachian tube. When it is confirmed that the balloon part of the dilation catheter has completely entered the Eustachian tube Finally, connect the water injection pressure pump to the tail end of the expansion tube, inject water and pressurize to 10 atm, maintain it for 2-3 minutes, release the pressure and retract the balloon into the guide tube 3, and the expansion step is completed.

Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still understand the foregoing The technical solutions recorded in each embodiment are modified, or some of the technical features are replaced equivalently, but within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the present invention within the scope of protection.

Claims (8)

1. A special insertion instrument for medical transoropharynx tube balloon dilatation catheter, characterized in that: it comprises a main pipe, a pushing tube and a guiding tube, and the pushing tube passes through the main tube to connect the guiding tube, and the guiding tube is connected to the guiding tube. The end of the tube away from the main pipe is provided with a tube bend device adapted to the position of the Eustachian tube. 2. According to claim 1, a special insertion device for medical transoropharyngeal tube balloon dilatation catheter, characterized in that: the bending device includes a first tube connected with the guide tube and at a certain angle, The other end of the first tube bends the second tube, and the plane formed by the guide tube and the first tube and the plane formed by the first tube and the second tube are located in different planes. 3. According to claim 2, a special insertion device for medical transoropharynx tube balloon dilatation catheter is characterized in that: the angle between the guide tube and the first tube is 120 degrees, and the first tube and the first tube are The angle between the second tubes is 30 degrees, 45 degrees or 70 degrees. 4 . The special insertion device for medical transoropharynx tube balloon dilatation catheter according to claim 3 , wherein the end of the second tube away from the first tube is provided with a trumpet-shaped opening. 5. According to claim 1, a special insertion device for medical transoral eustachian tube balloon dilatation catheter is characterized in that: said main tube is provided with a radial notch, and said push tube is provided with a radial notch corresponding to said radial notch. boot block. 6 . The special insertion device for medical transoropharynx tube balloon dilatation catheter according to claim 1 , wherein the pushing tube is further provided with a sleeve, and the sleeve is threadedly connected to the main tube. 7 . 7 . The special insertion device for medical transoropharynx tube balloon dilation catheter according to claim 1 , wherein a knob for fixing the position of the pushing tube is provided on the side of the main tube. 8 . 8. According to any one of claims 1 to 7, a special insertion device for medical transoropharynx tube balloon dilatation catheter is characterized in that: the outlet position of the second tube is hinged with several supporting claws, and the supporting claws One end of the claw is connected to the control wire.