Eustachian tube endoscope

Abstract

The eustachian tube endoscope comprises an operation part, an outer sleeve and a drug delivery device, an inflation and deflation part and a drug delivery part are arranged on the outer side of the operation part, a display device is arranged at one end of the operation part, the other end of the operation part is connected with a hose part, and the hose part is provided with a camera shooting channel, an inflation and deflation channel and a drug delivery channel. The inflating and deflating channel can be communicated with the inflating and deflating part, an air bag is arranged at the tail end of the inflating and deflating channel, the dosing channel can be communicated with the dosing part, the camera shooting channel is provided with a camera, the camera is electrically connected with the display device, the outer sleeve is of a hollow structure, the hose part can penetrate through the outer sleeve, and the dosing device can be inserted into the dosing channel through the dosing part. The Eustachian tube can enter the Eustachian tube to examine lesions in the Eustachian tube, can be matched with an endoscope to perform accurate drug delivery, is simple to operate, and can accurately insert the hose into the Eustachian tube from a nasopharynx opening.

Description

Technical Field

[0001] The invention belongs to the field of medical equipment, and in particular relates to a Eustachian tube mirror. Background Art

[0002] The Eustachian tube is a tube connecting the middle ear cavity and the nasopharynx. The opening on the nasal cavity side is called the nasopharyngeal opening, and the opening on the tympanic cavity side is called the tympanic cavity opening. The current Eustachian tube inspection equipment detects the Eustachian tube function through electrophysiological technology, or uses nasal endoscopy to inspect the opening and closing of the nasopharyngeal opening of the Eustachian tube, but cannot detect the entire length of the Eustachian tube. The current existing Eustachian tube inspection technology cannot directly observe minor lesions in the Eustachian tube, such as mucosal lesions, local inflammation, and scar adhesions. Moreover, the existing Eustachian tube inspection equipment can only inspect the Eustachian tube and cannot be used in conjunction with medication. The current Eustachian tube inspection equipment requires medical staff to insert it into the nasopharyngeal opening or the tympanic cavity opening based on experience, which is difficult to use. Therefore, in order to avoid the shortcomings of the existing technology, it is necessary to improve the existing technology. Summary of the invention

[0003] The purpose of the present invention is to provide a Eustachian tube endoscope, which can enter the Eustachian tube to examine the lesions inside the Eustachian tube, can cooperate with an endoscope to accurately administer medicine, is easy to operate, and can accurately insert a hose from the nasopharyngeal opening into the Eustachian tube.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A Eustachian tube mirror comprises an operating part, an outer sleeve and a medication device, wherein an inflation and exhaust part and a medication part are arranged on the outer side of the operating part, a display device is arranged at one end of the operating part, and a hose part is connected to the other end of the operating part, wherein the hose part is provided with an imaging channel, an inflation and exhaust channel and a medication channel, wherein the inflation and exhaust channel can be communicated with the inflation and exhaust part, an air bag is arranged at the end of the inflation and exhaust channel, the medication channel can be communicated with the medication part, the imaging channel is provided with a camera, and the camera is electrically connected to the display device, the outer sleeve is a hollow structure, the hose part can penetrate the outer sleeve, and the medication device can be inserted into the medication channel through the medication part.

[0006] As a preferred embodiment of the above-mentioned Eustachian tube endoscope, the drug delivery device comprises an outer tube and an inner tube, the outer tube is provided with a drug stent inside, the drug stent can slide along the inner wall of the outer tube, and the inner tube is inserted inside the outer tube and can push the drug stent to slide along the inner wall of the outer tube.

[0007] As a preferred embodiment of the above-mentioned Eustachian tube mirror, the drug stent is cylindrical, drug powder is contained inside the drug stent, and the outer surface of the drug stent is woven into a cylindrical grid structure by degradable sutures.

[0008] As a preferred embodiment of the Eustachian tube mirror, a light-transmitting optical fiber layer is laid on the outer side of the hose portion.

[0009] As a preferred solution of the above-mentioned Eustachian tube mirror, the outer sleeve includes two semicircular tubes, and a rotating part is connected between the two semicircular tubes.

[0010] As a preferred embodiment of the above-mentioned Eustachian tube mirror, a rubber plug is slidably installed inside the air-filling and exhausting portion, a radially protruding clamping ring is provided on the inner wall of the air-filling and exhausting portion, a spring is connected between the clamping ring and the rubber plug, and a contact rod is fixedly connected to the rubber plug.

[0011] As a preferred embodiment of the above-mentioned Eustachian tube mirror, the upper cover of the medication portion is provided with a sealing cover.

[0012] Compared with the prior art, the Eustachian tube mirror provided by the present invention has the following beneficial effects:

[0013] The outer sleeve of the present invention can guide the soft tube part. When it is necessary to enter the Eustachian tube through the nasopharyngeal opening to perform a full-length examination of the Eustachian tube of the patient, the medical staff inserts the outer sleeve into the patient's nasal cavity to the nasopharyngeal opening, a medical staff fixes the outer sleeve, and then passes the soft tube part along the outer sleeve and through the outer sleeve, and enters the Eustachian tube from the nasopharyngeal opening. The soft tube part is provided with a camera channel, an air filling and exhausting channel and a drug administration channel. The camera channel is provided with a camera, and the camera is electrically connected to a display device. After the soft tube part enters the Eustachian tube, the camera can be used to photograph the situation in the Eustachian tube, and the internal image of the Eustachian tube is displayed on the display device to inspect the inside of the Eustachian tube. The camera can move along with the soft tube part. During the process of the soft tube portion gradually penetrating into the Eustachian tube, the full length of the Eustachian tube is checked; the drug delivery device can be inserted into the drug delivery channel through the drug delivery portion to enter the interior of the Eustachian tube for drug delivery; when delivering the drug, since an air bag is provided at the end of the inflation and exhaust channel, air is pumped in through the inflation and exhaust port to inflate the air bag, so that the air bag bulges and presses against the inner wall of the Eustachian tube to fix the soft tube portion in position; the drug delivery device inserts the drug delivery channel through the drug delivery portion to deliver the drug into the Eustachian tube; through the observation and cooperation of the display device, the drug is delivered to the precise position in the Eustachian tube; after the drug delivery process is completed, the air bag is exhausted and deflated through the inflation and exhaust port so that the soft tube portion can be withdrawn from the Eustachian tube to the nasopharyngeal opening and then taken out through the overtube. The air bag expands the folds of the Eustachian tube mucosa, allowing for an all-round inspection of the Eustachian tube mucosa to avoid missing lesions due to mucosal folds. The field of view is wider and it can loosen scar adhesions to a certain extent. The hose has three channels, allowing the Eustachian tube endoscope to perform inspection and medication functions. An air bag is provided at the end of the inflation and exhaust channels to assist in inspection and medication. The hose is guided by an outer sleeve, making it easy for the hose to enter the Eustachian tube, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0015] Figure 1 is a schematic diagram of a Eustachian tube mirror of the present invention;

[0016] Figure 2 It is a schematic diagram of the internal structure of the Eustachian tube mirror of the present invention;

[0017] Figure 3 is a schematic diagram of a hose portion of the present invention;

[0018] Figure 4 is a schematic diagram of an outer sleeve of the present invention;

[0019] Figure 5 is a schematic diagram of a drug delivery device of the present invention;

[0020] Figure 6 is a schematic diagram of the internal structure of the drug delivery device of the present invention;

[0021] Figure 7 Schematic diagram of the drug-eluting stent of the present invention.

[0022] Markings in the figure:

[0023] 100, operating part; 110, drug delivery part; 111, sealing cover; 120, inflation and exhaust part; 121, snap ring; 122, spring; 123, rubber plug; 124, contact rod; 130, display device; 200, hose part; 210, camera channel; 211, camera head; 220, inflation and exhaust channel; 230, drug delivery channel; 240, optical fiber layer; 300, outer sleeve; 310, semicircular tube; 320, rotating part; 400, drug delivery device; 410, outer tube; 420, inner tube; 430, drug stent. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] Please also read Figures 1 to 7 Now, the Eustachian tube mirror provided in an embodiment of the present invention is described.

[0029] like Figures 1 to 7 As shown, the Eustachian tube mirror of the present invention includes an operating part 100, an outer sleeve 300 and a drug delivery device 400. The outer side of the operating part 100 is provided with an inflation and exhaust part 120 and a drug delivery part 110. One end of the operating part 100 is provided with a display device 130. The other end of the operating part 100 is connected to a hose part 200. The hose part 200 is provided with a camera channel 210, an inflation and exhaust channel 220 and a drug delivery channel 230. The inflation and exhaust channel 220 can be communicated with the inflation and exhaust part 120. An air bag is provided at the end of the inflation and exhaust channel 220. The drug delivery channel 230 can be communicated with the drug delivery part 110. The camera channel 210 is provided with a camera 211, and the camera 211 is electrically connected to the display device 130. The outer sleeve 300 is a hollow structure. The hose part 200 can penetrate the outer sleeve 300. The drug delivery device 400 can be inserted into the drug delivery channel 230 through the drug delivery part 110.

[0030] By providing the drug delivery device 400 and the drug delivery channel 230, and cooperating with the image inside the Eustachian tube obtained by the camera 211, medication can be administered to the precise part of the Eustachian tube. The camera 211 can gradually penetrate into the Eustachian tube along with the hose portion 200, thereby inspecting the entire length of the Eustachian tube to detect subtle lesions.

[0031] Exemplarily, the drug delivery device 400 includes an outer tube 410 and an inner tube 420, wherein a drug stent 430 is disposed inside the outer tube 410, and the drug stent 430 can slide along the inner wall of the outer tube 410, and the inner tube 420 is inserted inside the outer tube 410 and can push the drug stent 430 to slide along the inner wall of the outer tube 410. By pushing the inner tube 420 along the inside of the outer tube 410, the drug stent 430 also disposed inside the outer tube 410 can be pushed. The outer tube 410 can be inserted into the drug delivery channel 230 through the drug delivery portion 110, and by pushing the inner tube 420 to move, the drug stent 430 can be pushed out from the drug delivery channel 230 into the Eustachian tube, thereby achieving drug delivery to a specific position inside the Eustachian tube.

[0032] For example, Figure 6 and Figure 7 As shown, the drug stent 430 is cylindrical, and drug powder is contained inside the drug stent 430. The outer surface of the drug stent 430 is woven into a cylindrical grid structure by degradable sutures. The intersection of the grid structure is reinforced with a wrapping gel. The inside of the hollow tubular structure is filled with drug powder, and the surface of the wrapping gel has a sustained-release drug coating. The drug stent 430 is precisely positioned into the Eustachian tube under the observation of the camera 211 and the display device 130. The outer surface of the drug stent 430 is woven into a grid structure by degradable sutures. , so that patients can slowly absorb the drug. The composition of the degradable sutures: the core part is polyglycolic acid (PGA). In order to improve the flexibility of PGA and reduce friction, there is a special coating on the surface of the core, which contains polyacetic acid (PLA) and polycaprolactone (PCL). Through the weaving of degradable sutures, the drug stent 430 can eventually be completely degraded and absorbed without having to be removed again, avoiding discomfort to the patient during the treatment process. The drug stent 430 can be absorbed in about a month. The drug stent 430 not only plays a mechanical support role, but also the drug treatment effect can be maintained for about a month.

[0033] For example, Figure 3 As shown, a light-transmitting optical fiber layer 240 is laid on the outer side of the hose portion 200. The space of the Eustachian tube is small, and the cross-sectional diameter of the length section of the hose portion 200 is required to be as thin as possible. The optical fiber layer 240 is arranged at the outer edge of the hose portion 200 to reduce the cross-sectional diameter of the hose portion 200. Compared with installing the light at the front end of the probe, arranging the optical fiber layer 240 at the outer edge of the hose portion 200 can fully utilize the diameter of the hose portion 200, avoiding certain restrictions on the power and brightness of the light due to the limitation of the diameter. Compared with installing the light at the rear end main unit of the endoscope, arranging the optical fiber layer 240 at the outer edge of the hose portion 200 can make the light energy directly irradiate along the optical fiber layer 240, avoiding the loss of the light path and improving the imaging quality captured by the camera 211.

[0034] Exemplarily, the outer sleeve 300 includes two semicircular tubes 310, and a rotating member 320 is connected between the two semicircular tubes 310. The two semicircular tubes 310 are connected by the rotating member 320, so that the outer sleeve 300 forms an openable and closable structure. When the inspection is completed and the Eustachian tube endoscope is taken out, after the hose portion 200 exits the nasopharyngeal opening and reaches the outer sleeve 300, the outer sleeve 300 can be directly taken out, and then the two semicircular tubes 310 are opened by opening and closing, and the hose portion 200 is taken out. In this way, the friction loss caused by the hose portion 200 repeatedly shuttling back and forth in the outer sleeve 300 can be reduced.

[0035] Exemplarily, a rubber plug 123 is slidably installed inside the air filling and exhaust part 120, and a radially protruding snap ring 121 is provided on the inner wall of the air filling and exhaust part 120, and a spring 122 is connected between the snap ring 121 and the rubber plug 123. A contact rod 124 is fixedly connected to the rubber plug 123. By using a syringe to push open the contact rod 124, the rubber plug 123 can slide along the inside of the air filling and exhaust part 120 to stretch the spring 122 and allow gas to enter the air filling and exhaust channel 220. After the syringe is removed, the stretched spring 122 returns to its original state, allowing the rubber plug 123 to return to its original position to avoid air leakage in the air filling and exhaust part 120.

[0036] Exemplarily, the medication portion 110 is covered with a sealing cover 111. When medication is not needed, the sealing cover 111 is covered to prevent the inside of the Eustachian tube mirror from being contaminated. The sealing cover 111 is detachable for easy cleaning.

[0037] Compared with the prior art, the Eustachian tube mirror provided by the present invention has the following beneficial effects:

[0038] The outer sleeve 300 of the present invention can guide the soft tube part 200. When it is necessary to enter the Eustachian tube through the nasopharyngeal opening to perform a full-length Eustachian tube examination on the patient, the medical staff inserts the outer sleeve 300 into the patient's nasal cavity to the nasopharyngeal opening, and a medical staff fixes the outer sleeve 300, and then passes the soft tube part 200 along the outer sleeve 300 and through the outer sleeve 300, and sends it into the Eustachian tube from the nasopharyngeal opening. The soft tube part 200 is provided with a camera channel 210, an inflation and exhaust channel 220 and a drug delivery channel 230. The camera channel 210 is provided with a camera 211, and the camera 211 is electrically connected to the display device 130. After the soft tube part 200 enters the Eustachian tube, the camera 211 can be used to photograph the situation inside the Eustachian tube, and the internal image of the Eustachian tube can be displayed through the display device 130 to inspect the inside of the Eustachian tube. The camera 211 It can move together with the hose part 200, and inspect the entire length of the Eustachian tube as the hose part 200 gradually penetrates into the Eustachian tube. The drug delivery device 400 can be inserted into the drug delivery channel 230 through the drug delivery part 110 to enter the interior of the Eustachian tube for drug delivery. When delivering the drug, since an air bag is provided at the end of the inflation and exhaust channel 220, air is pumped in through the inflation and exhaust port to inflate the air bag, so that the air bag bulges and presses against the inner wall of the Eustachian tube to fix the hose part 200 in position. The drug delivery device 400 is inserted into the drug delivery channel 230 through the drug delivery part 110 to deliver the drug into the Eustachian tube. Through the observation and cooperation of the display device 130, the drug is delivered to the precise position in the Eustachian tube. After the drug delivery process is completed, the air bag is exhausted and deflated through the inflation and exhaust port, so that the hose part 200 can be withdrawn from the Eustachian tube to the nasopharyngeal opening and then taken out through the outer sleeve 300. The airbag expands the folds of the Eustachian tube mucosa, and the Eustachian tube mucosa can be inspected in all directions during the inspection to avoid missing lesions due to mucosal folds. The field of view is wider and it can loosen scar adhesions to a certain extent. The hose part 200 is provided with three channels so that the Eustachian tube endoscope can realize the inspection and drug administration functions, and an airbag is provided at the end of the inflation and exhaust channel 220 to assist in inspection and drug administration. The outer sleeve 300 is set up for guidance, so that the hose part 200 can enter the Eustachian tube conveniently, and the operation is simple.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A Eustachian tube mirror, characterized in that: include: An operating part, an inflation and exhaust part and a medication part are arranged on the outside of the operating part, a display device is arranged on one end of the operating part, and a hose part is connected to the other end of the operating part, and the hose part is provided with a camera channel, an inflation and exhaust channel and a medication channel, the inflation and exhaust channel can be communicated with the inflation and exhaust part, an air bag is arranged at the end of the inflation and exhaust channel, the medication channel can be communicated with the medication part, the camera channel is provided with a camera, and the camera is electrically connected to the display device; An outer sleeve, wherein the outer sleeve is a hollow structure, and the hose portion can pass through the outer sleeve; A drug administration device is insertable into the drug administration channel through the drug administration portion.

2. The Eustachian tube mirror according to claim 1, characterized in that: The drug delivery device comprises an outer tube and an inner tube, wherein a drug stent is arranged inside the outer tube and can slide along the inner wall of the outer tube, and the inner tube is inserted inside the outer tube and can push the drug stent to slide along the inner wall of the outer tube.

3. The Eustachian tube mirror according to claim 2, characterized in that: The drug stent is cylindrical, drug powder is contained inside the drug stent, and the drug stent is woven into a cylindrical grid structure by degradable sutures.

4. The Eustachian tube mirror according to claim 1, characterized in that: The outer side surface of the hose portion is paved with a light-transmitting optical fiber layer.

5. The Eustachian tube mirror according to any one of claims 1 to 4, characterized in that: The outer sleeve comprises two semicircular tubes, and a rotating member is connected between the two semicircular tubes.

6. The Eustachian tube mirror according to any one of claims 1 to 4, characterized in that: A rubber plug is slidably mounted inside the air filling and venting portion, a radially protruding snap ring is provided on the inner wall of the air filling and venting portion, a spring is connected between the snap ring and the rubber plug, and a contact rod is fixedly connected to the rubber plug.

7. The Eustachian tube mirror according to any one of claims 1 to 4, characterized in that: The upper cover of the medication part is provided with a sealing cover.

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