CN213220410U

CN213220410U - Double-cavity eustachian tube balloon catheter

Info

Publication number: CN213220410U
Application number: CN202021285931.8U
Authority: CN
Inventors: 唐文兵; 郭淑儿
Original assignee: Guangzhou Man Xiang Pharmaceutical Co ltd
Current assignee: Guangzhou Man Xiang Pharmaceutical Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-05-18
Anticipated expiration: 2030-07-03

Abstract

The utility model relates to a medical instrument specifically is a two-chamber eustachian tube sacculus pipe, including long and thin pipe, long and thin pipe has near-end body and distal end body, and fixed cover is equipped with the connector on the near-end body, and fixed cover is equipped with the sacculus on the distal end body, is equipped with the dosing chamber that the axial link up in the long and thin pipe and aerifys the chamber, and the dosing chamber separates the setting with aerifing the chamber, and the exit end in dosing chamber is connected with the inner tube, and the exit end of inner tube is located the outside of sacculus, and the exit end of aerifing the chamber is located. The utility model discloses a setting of two inner chamber pipes can reach the purpose of the exact open eustachian tube, can inject the medicine for the tympanic cavity simultaneously to reach the eustachian tube obstructive disease that the treatment arouses because of the eustachian tube is narrow.

Description

Double-cavity eustachian tube balloon catheter

Technical Field

The utility model relates to a medical instrument, in particular to a double-cavity eustachian tube balloon catheter.

Background

The eustachian tube is the only pathway for the middle ear to communicate with the outside world, and a blockage or blockage of the eustachian tube can lead to various pathologies of the middle ear system and ultimately to hearing impairment and noise in the head, and if the blockage is too long, a condition known as secretory otitis media can develop. Eustachian tube dysfunction is mainly caused by factors such as mechanical stenosis caused by swelling of the mucosa of the eustachian tube, lack of surfactant in the eustachian tube, inflammation of the mucosa of the eustachian tube or allergic edema. Although the auditory sense level can be improved by reconstructing the tympanic cavity and connecting the auditory ossicle chain structure through increasingly perfect middle ear operation modes and advanced operation skills, the eustachian tube dysfunction is not effectively improved at present, so that the long-term effect after the middle ear operation cannot be ensured. At present, the report of treating eustachian tube and tympanogram lesions through balloon catheter expansion appears, but most of the existing eustachian tube balloon catheters are arranged in a single-cavity channel, and cannot simultaneously achieve the purposes of expanding the eustachian tube and injecting medicines into the tympanogram, and the existing eustachian tube balloon catheters are not proper in material and structure arrangement, so that the balloon is easy to bend in the control process to cause new trauma to a patient.

SUMMERY OF THE UTILITY MODEL

For solving the problem in the above-mentioned background art, the utility model provides a two-chamber eustachian tube sacculus pipe, this sacculus pipe can not only play the effect of expansion eustachian tube, moreover through set up simultaneously on long and thin pipe give the medicine chamber and aerify the chamber, the convenient drainage of expanding and dosing to the eustachian tube.

The utility model adopts the following technical scheme: the utility model provides a two-chamber eustachian tube sacculus pipe, includes long and thin pipe, and long and thin pipe has near-end body and distal end body, and fixed cover is equipped with the connector on the near-end body, and fixed cover is equipped with the sacculus on the distal end body, is equipped with the feeding chamber that the axial link up in the long and thin pipe and aerifys the chamber, and the feeding chamber separates the setting with aerifing the chamber, and the exit end in feeding chamber is connected with the inner tube, and the exit end of inner tube is located the outside of sacculus, and the exit end in.

Furthermore, the connector is a three-way connector, the three-way connector comprises a first connector end and a second connector end which are horizontally arranged, and a third connector end which is perpendicular to the first connector end and the second connector end, a heat shrink tube is sleeved on the near-end tube body and connected with the near-end tube body through a protective sleeve, the heat shrink tube is in a conical shape and provided with a reducing end and an expanding end, the expanding end is connected with the first connector end, a sealing sleeve is arranged between the second connector end and the first connector end, the third connector end is communicated with the administration cavity, and the second connector end is communicated with the inflation cavity.

Further, the peripheral surface of the near-end tube body is provided with a medicine inlet which is communicated with the administration cavity and is communicated with the third interface end.

Furthermore, the administration cavity opening at the end part of the near-end tube body is sealed by a sealing plug, and the air inlet cavity opening at the end part of the near-end tube body is communicated with the third interface end.

Further, the outer surface of the saccule is provided with a medicine coating, and the outer surface of the slender catheter is provided with a hydrophilic coating.

Further, the inner tube comprises a tip tube, the tip tube is located outside the balloon, and the tip tube is a polyurethane tube.

Furthermore, a handle is arranged on the outer peripheral surface of the connector.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a two-chamber eustachian tube sacculus pipe is provided with the chamber of giving medicine and aerifys the chamber at long and thin pipe axial interval, and the exit end of aerifing the chamber is located the inside of sacculus, aerify for the sacculus, it is connected with the inner tube to give the chamber exit end, the exit end of inner tube is located the outside of sacculus for the tympanum injection medicine, setting through two inner chamber pipes can reach the purpose of the open eustachian tube of exact, can inject the medicine for the tympanum simultaneously, thereby reach the eustachian tube obstructive disease that the treatment arouses because of the eustachian tube is narrow.

(2) The double-cavity eustachian tube balloon catheter of the utility model is provided with the drug coating on the outer surface of the balloon and the hydrophilic coating on the outer surface of the slender catheter, wherein the drug coating can reduce the irritation and toxicity of the drug to the lesion and improve the stability of the drug; the hydrophilic coating has better lubrication, so that the surface friction coefficient of the balloon, the slender catheter and the eustachian tube is reduced, and the balloon catheter can more easily pass through the nasal passage of a patient and enter the eustachian tube.

(3) The utility model discloses an inner tube of two-chamber eustachian tube sacculus pipe includes the tip pipe, and the tip pipe is located the outside of sacculus, and the tip pipe is the polyurethane pipe, and the hardness of polyurethane pipe is lower, and reducible patient's discomfort and painful sense in the operation process can avoid causing new wound to patient's wound moreover.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the general structure of the double-lumen eustachian tube balloon catheter of the present invention;

FIG. 2 is a structural view of a slender catheter of the double-cavity eustachian tube balloon catheter of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a cross-sectional view of an elongated catheter of the dual-lumen eustachian tube balloon catheter of the present invention;

FIG. 5 is a longitudinal cross-sectional view of the distal end of the dual-lumen eustachian tube balloon catheter of the present invention;

the medical device comprises a catheter 1, an elongated catheter 11, a proximal end tube 12, a distal end tube 13, a drug delivery cavity 131, a drug inlet 132, a drug delivery cavity port 14, an inflation cavity 2, a connector 21, a first interface end 22, a second interface end 23, a third interface end 3, a reinforcing mandrel 4, a balloon 5, an inner tube 6, a tapered heat shrink tube 61, a diameter reducing end 62, a tip tube 7 and a handle 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-5, the utility model provides a double-cavity eustachian tube balloon catheter, which comprises an elongated catheter 1, wherein the elongated catheter 1 comprises a proximal tube 11 and a distal tube 12, a connector 2 is fixedly sleeved on the proximal tube 11, and the connector 2 of the embodiment is a tube structure and is used for communicating with the elongated tube 1 to realize ventilation or medicine injection; the far-end tube body 12 is fixedly sleeved with a saccule 4; specifically, a drug administration cavity 13 and an inflation cavity 14 which are axially communicated are arranged in the elongated catheter 1, the drug administration cavity 13 and the inflation cavity 14 are adjacent to each other and are arranged at intervals, the outlet end of the drug administration cavity 13 is connected with an inner tube 5, the outlet end of the inner tube 5 is positioned outside the balloon 4, and the inner tube 5 is used for injecting water, medicaments and the like into the eustachian tube; the outlet end of the inflation cavity 14 is positioned inside the balloon 4, and the inflation cavity 14 is used for inflating the balloon 4 to achieve the purpose of expanding the eustachian tube.

The elongated catheter 1 of the embodiment is provided with the dosing cavity 13 and the inflation cavity 14 at intervals in the axial direction, and the outlet end of the inflation cavity 14 is located inside the balloon 4 and used for inflating the balloon 4, wherein in specific use, the air pressure inside the balloon 4 needs to be ensured to be less than 16 atmospheric pressures, otherwise, the balloon 4 may explode and cause injury to a patient; the outlet end of the medicine feeding cavity 13 is connected with an inner tube 5, the outlet end of the inner tube 5 is positioned outside the balloon 4 and used for injecting medicine for the eustachian tube, the purpose of opening the eustachian tube exactly can be achieved through the arrangement of the double inner cavities of the long and thin catheter, and meanwhile, the medicine can be injected into the eustachian chamber, so that the purpose of treating the eustachian tube obstructive disease caused by eustachian tube stenosis is achieved.

Specifically, as shown in fig. 1, the connector 2 of the present embodiment is a three-way joint, the three-way joint includes a first interface end 21 and a second interface end 22 that are horizontally arranged, and a third interface end 23 that is vertically arranged with the first interface end 21 and the second interface end 22, a tapered heat-shrinkable tube 6 is sleeved on the proximal tube body 11, the tapered heat-shrinkable tube 6 is connected with the proximal tube body 11 through a protective sleeve, the tapered heat-shrinkable tube 6 has a reduced diameter end 61 and an expanded diameter end 62, the expanded diameter end 62 is connected with the first interface end 21, a sealing sleeve is arranged between the second interface end 22 and the first interface end 21, the third interface end is communicated with the administration cavity 13, and the second interface end 22 is communicated with the inflation cavity. The concrete arrangement of the connector 2 of the embodiment realizes the stable sealing connection of the elongated catheter 1 and the connector 2, and the structure is reasonable. Of course, the connector 2 of the present invention may also be selected as a split connector, for example, in other embodiments, the connector 2 includes a first connector and a second connector, the first connector is a three-way joint, the second connector is a straight-line-shaped two-way joint, the first connector communicates with the administration cavity 13, the second connector communicates with the inflation cavity 14, and the first connector is connected to the second connector in a sealing manner. Set up first connector and second connector and also can realize expanding the narrow or obstructed eustachian tube simultaneously to and the infusion liquid medicine, overall structure is simple, convenient to use, and first connector and second connector can be selected as the connector of different grade type, all belong to the utility model discloses a protection scope.

Specifically, as shown in fig. 3, the proximal tube 11 of the present embodiment has a drug inlet 131 on the outer peripheral surface thereof, the drug inlet 131 is communicated with the administration cavity 13, and the drug inlet 131 is communicated with the third mouthpiece end 23. In order to realize that the medicine inlet part and the air inlet part do not interfere with each other, the administration cavity 132 at the end part of the proximal tube body 11 is sealed by a sealing plug, the air inlet cavity at the end part of the proximal tube body 11 is communicated with the second connector end 22, and the second connector end 22 and the third connector end are not communicated with each other.

Specifically, still be equipped with handle 8 on the outer peripheral face of this embodiment connector 2, make things convenient for medical personnel to hand the device and operate.

Specifically, the outer surface of the balloon 4 is provided with a drug coating, and the outer surface of the elongated catheter 1 is provided with a hydrophilic coating. The drug coating of the embodiment is added with liposome or cyclodextrin such as microspheres, microcapsules or phospholipid and a bilichol bilayer, so that the irritation and toxicity of the drug to a pathological change part can be reduced, and the stability of the drug can be improved. It can be understood that cyclamine is cyclic oligosaccharide containing 6-8 glucose units, and can form inclusion compound with fat-soluble medicine to increase their water-solubility and raise solubility of medicine, and cyclodextrin can directly act on epithelial cell so as to raise permeability of water-soluble medicine such as peptide and protein to mucosa; the liposome consists of lipid bilayers, and the inside of the liposome is a closed vesicle with a water phase, mainly consisting of phospholipid and cholesterol, and the liposome can also reduce the toxicity of the medicament and improve the stability of the medicament; the cyclodextrin and the liposome described in the utility model are absorption promoters, which can increase the absorption of the nose mucosa of the medicine and improve the medicine property.

Specifically, the hydrophilic coating on the outer surface of the elongated catheter 1 of the present embodiment has a good lubricity, so that the surface friction coefficient of the balloon 4, the elongated catheter 1 and the eustachian tube is reduced, and the balloon catheter can more easily enter and pass through the nasal passage of the patient and enter the eustachian tube. Specifically, the hydrophilic coating of the present embodiment includes a first solution and a second solution, and the components of the first solution are: 1-2% of amino silanes, 8-10% of water, organic solvent and the balance; the composition of the second solution was: 2-3% of hydrophilic polymer, organic solvent and the balance, the outer surface of the slender catheter 1 is treated by the lubricating liquid reagent of the hydrophilic coating, the treated slender catheter 1 has better lubrication degree, the surface friction coefficient can be reduced by 80%, and the balloon catheter can more easily pass through the nasal passage of a patient and enter the eustachian tube. It should be noted that all the components in the reagent provided by the utility model have no adverse reaction to human body, and the reagent has better safety and long storage time.

Specifically, the inner tube 5 includes a tip tube 7, the tip tube 7 is located outside the balloon 4, and the tip tube 7 is a polyurethane tube. The hardness of the polyurethane pipe of this embodiment is lower, and pollution-free nontoxic tasteless, reducible patient's discomfort and painful sense in the operation process can avoid causing new wound to patient's wound moreover, and the security is better.

Specifically, the inner tube 5 of this embodiment is further provided with a reinforcing mandrel 3, and the outer diameter of the reinforcing mandrel 3 is smaller than the inner diameter of the inner tube 5. The safety when the product is controlled can be effectively improved by adding the reinforcing mandrel 3 in the inner tube 5, and the injury to a patient caused by the damage (easy bending) of the balloon caused by the control obstruction in clinical practice is reduced.

Use the utility model discloses in the time, with two-chamber eustachian tube sacculus pipe through nasal cavity to big nasopharynx portion, then put into the bone portion or the cartilage portion of eustachian tube through the eustachian tube pharyngeal mouth of nasopharynx portion, then fill the port connection of filling equipment through third interface end 23 and outside, it makes the sacculus inflation back be used for expanding the eustachian tube to fill in sacculus 4 gas injection through filling equipment, make obstructed eustachian tube open, then be connected with outside infusion equipment's port through first interface end 21, inject the medicine in to the chamber 13 of dosing through infusion equipment, and reach in the tympanum through most advanced pipe, infuse the liquid medicine to the position of intraductal pathological change of eustachian tube, treat the relevant disease that arouses because of eustachian tube trouble.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims

1. The utility model provides a two-chamber eustachian tube sacculus pipe, a serial communication port, including long and thin pipe, long and thin pipe has near-end body and distal end body, fixed cover is equipped with the connector on the near-end body, fixed cover is equipped with the sacculus on the distal end body, be equipped with the cavity of giving medicine and aerifing the chamber that the axial link up in the long and thin pipe, give medicine the chamber with it separates the setting to aerify the chamber, the exit end in the cavity of giving medicine is connected with the inner tube, the exit end of inner tube is located the outside of sacculus, the exit end in the cavity of aerifing is located the inside.

2. The dual-cavity eustachian tube balloon catheter as claimed in claim 1, wherein the connector is a three-way connector, the three-way connector comprises a first connector end and a second connector end which are horizontally arranged, and a third connector end which is vertically arranged with the first connector end and the second connector end, the near-end tube body is sleeved with a heat shrink tube, the heat shrink tube is connected with the near-end tube body through a protective sleeve, the heat shrink tube is in a conical shape and is provided with a reducing end and an expanding end, the expanding end is connected with the first connector end, a sealing sleeve is arranged between the second connector end and the first connector end, the third connector end is communicated with the administration cavity, and the second connector end is communicated with the inflation cavity.

3. The dual-cavity eustachian tube balloon catheter as claimed in claim 2, wherein a drug inlet is formed in the outer peripheral surface of the proximal tube body, the drug inlet is communicated with the drug delivery cavity, and the drug inlet is communicated with the third mouthpiece end.

4. The dual-cavity eustachian tube balloon catheter as claimed in claim 3, wherein the drug delivery port at the end of the proximal tube body is sealed by a sealing plug, and the air inlet port at the end of the proximal tube body is communicated with the third interface end.

5. The dual lumen eustachian tube balloon catheter of claim 1, wherein the outer surface of the balloon is provided with a drug coating and the outer surface of the elongated catheter is provided with a hydrophilic coating.

6. The dual-lumen eustachian tube balloon catheter of claim 1, wherein the inner tube comprises a tip tube located outside the balloon, the tip tube being a polyurethane tube.

7. The dual-lumen eustachian tube balloon catheter as claimed in claim 1, wherein a handle is further provided on the outer peripheral surface of the connector.