Eustachian tube balloon dilation catheter device

Abstract

The present invention discloses a Eustachian tube balloon dilatation catheter device, which includes a shell, an imaging component and a drive component. The shell includes a sleeve through which a balloon guide wire is passed. The imaging component includes an imaging probe and an imaging catheter. The imaging probe is rotatably arranged at one end of the sleeve, and the imaging probe is rotatably arranged at one end of the imaging catheter. The imaging catheter is passed through the sleeve and connected to the imaging probe. The drive component drives the imaging probe to rotate and can make the imaging probe stay at any position on its rotation trajectory. First, the balloon guide wire is passed through the sleeve. The imaging probe is used to observe the situation inside the patient's body, and the imaging catheter transmits the visual signal back to the back-end device. The driving component is used to drive the imaging probe to rotate, so that the shooting angle of the imaging probe can be changed. The Eustachian tube balloon dilatation catheter device provided by the invention can adjust the shooting angle of the imaging probe to avoid the existence of visual angles in the patient's body that cannot be photographed, making the surgical operation more convenient.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and in particular to a Eustachian tube balloon dilation catheter device. Background Art

[0002] The Eustachian tube (ET) is a dynamic structure traditionally classified as part of the auditory system. The ET is a narrow, epithelial-lined tube that extends from the middle ear to the nasopharynx, connecting the two. It is crucial for middle ear health and human hearing function. Due to the confined space and numerous symptoms of the Eustachian tube itself, traditional medical treatments have struggled to effectively treat Eustachian tube-related conditions. The prevalence of Eustachian tube dysfunction (ETD) is approximately 4.6% in adults and 6.1% in children. This high prevalence has led to an increasing demand for the integration of robotics and minimally invasive surgery in modern medicine.

[0003] Existing Eustachian tube balloon dilation catheter devices, such as those described in patent application number CN202210993954.1, utilize an imaging probe and an imaging catheter to obtain visual images of the patient's body, facilitating surgical procedures performed by the surgeon using a balloon guidewire. However, the imaging probe's fixed shooting angle can create blind spots that can interfere with the surgeon's surgical procedures.

[0004] Therefore, how to avoid the visual angle of the imaging probe is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide a Eustachian tube balloon dilation catheter device to solve the technical problem of how to avoid the visual angle of the imaging probe in the prior art.

[0006] To achieve the above technical objectives, the technical solution of the present invention includes a Eustachian tube balloon dilation catheter device, which includes:

[0007] The housing includes a sleeve through which the balloon guide wire is passed;

[0008] An imaging assembly comprising an imaging probe and an imaging catheter, wherein the imaging probe is rotatably disposed at one end of the sleeve, and the imaging catheter is rotatably disposed at one end of the imaging catheter, and the imaging catheter is disposed in the sleeve and connected to the imaging probe; and

[0009] A driving assembly drives the imaging probe to rotate and enables the imaging probe to stay at any position on its rotation trajectory.

[0010] Preferably, the end of the imaging catheter close to the imaging probe can be bent in a plane, and the driving assembly includes a traction member and two traction ropes. The two traction ropes are arranged on both sides of the imaging catheter, one end of the traction rope is connected to the imaging probe, and the other end is connected to the traction member, and the traction member drives the two traction ropes to move synchronously in opposite directions.

[0011] Preferably, the traction member includes a traction drive unit and two sliders, the two sliders are slidably arranged on the shell along the axial direction of the imaging catheter, the traction drive unit drives the two sliders to move synchronously in opposite directions, and the two traction ropes are respectively connected to the two sliders.

[0012] Preferably, the traction drive unit includes a first motor and a first screw rod, the first screw rod has two sections of threads with opposite spiral directions, the slider opens a first screw hole, and the first screw holes of the two sliders are respectively screwed to the two sections of the threads, and the first motor drives the first screw rod to rotate.

[0013] Preferably, the slider is provided with a guide hole, and the housing includes a guide rod, which is passed through the guide hole so that the slider slides along the guide rod.

[0014] Preferably, a plurality of first bending grooves and a plurality of second bending grooves are provided on the side wall of the imaging catheter close to one end of the imaging probe, the plurality of first bending grooves and the plurality of second bending grooves are staggered, and the first bending grooves and the second bending grooves are respectively located on both sides of the catheter.

[0015] Preferably, the shell includes an outer cover and an inner support frame, the sleeve is connected to the inner support frame, and the inner support frame is slidably set on the outer cover. The Eustachian tube balloon dilatation catheter device also includes an extension component, which drives the inner support frame to move relative to the outer cover and can make the inner support frame stay at any position on its sliding trajectory.

[0016] Preferably, a guide rail is laid on the outer cover, and the inner support frame slides along the guide rail.

[0017] Preferably, the inner support frame is provided with a second screw hole, the extension assembly includes a second screw rod and a second motor, the second screw rod is screwed into the second screw hole, and the second motor drives the second screw rod to rotate.

[0018] Preferably, the inner support frame and the outer cover together form a receiving cavity, and the receiving cavity is used to accommodate the extension component and the driving component.

[0019] Compared with the existing technology, the present invention has the following advantages: first, a balloon guidewire is inserted into the cannula, allowing it to extend into the patient's body along with the imaging catheter. The imaging probe is used to observe the patient's internal conditions, and the imaging catheter transmits visual signals back to the back-end device. The driving assembly drives the imaging probe to rotate, thereby changing the imaging probe's shooting angle. The Eustachian tube balloon dilation catheter device provided by the invention can adjust the imaging probe's shooting angle, avoiding visual angles that cannot be captured within the patient's body, making the surgical procedure more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a Eustachian tube balloon dilation catheter device according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the external structure of a Eustachian tube balloon dilation catheter device according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the drive assembly and the extension assembly according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic structural diagram of a traction member according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of an imaging catheter according to an embodiment of the present invention;

[0025] Among them, the shell 100, the sleeve 110, the outer cover 120, the inner support frame 130, the guide rod 131, the second screw hole 132, the accommodating cavity 140, the imaging component 200, the imaging probe 210, the imaging catheter 220, the first bending groove 221, the second bending groove 222, the driving component 300, the traction member 310, the traction drive part 311, the first motor 3111, the first screw rod 3112, the slider 312, the first screw hole 3121, the guide hole 3122, the traction rope 320, the extension component 400, the second screw rod 410, and the second motor 420. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] An embodiment of the present invention provides a Eustachian tube balloon dilation catheter device, which belongs to the field of medical devices and is used to introduce a balloon guidewire into a patient's body for ETD treatment. The Eustachian tube balloon dilation catheter device can be used to adjust the imaging probe 210's shooting angle, avoiding visual angles that are difficult to capture within the patient's body, making surgical procedures more convenient.

[0028] In some preferred embodiments, the Eustachian tube balloon dilatation catheter device includes a housing 100, an imaging assembly 200, and a drive assembly 300. The housing 100 includes a cannula 110 through which a balloon guidewire is passed. The imaging assembly 200 includes an imaging probe 210 and an imaging catheter 220. The imaging probe 210 is rotatably disposed at one end of the cannula 110. The imaging probe 210 is rotatably disposed at one end of the imaging catheter 220. The imaging catheter 220 passes through the cannula 110 and is connected to the imaging probe 210. The drive assembly 300 drives the imaging probe 210 to rotate and can cause the imaging probe 210 to remain at any position along its rotation trajectory.

[0029] In the above embodiment, a balloon guidewire is first inserted into cannula 110, allowing it to extend into the patient's body along with imaging catheter 220. Imaging probe 210 is used to observe the patient's internal conditions, while imaging catheter 220 transmits visual signals back to the back-end equipment. Drive assembly 300 rotates imaging probe 210, thereby changing the imaging probe's 210 camera angle. The Eustachian tube balloon dilation catheter device provided by the invention allows for adjustable imaging probe 210 camera angles, avoiding unrestricted viewing angles within the patient's body and facilitating surgical procedures.

[0030] It should be noted that the imaging catheter 220 is connected to the imaging probe 210 and is used to transmit the visual signals from the imaging probe 210 to the back-end equipment. The imaging catheter 220 should include a flexible outer tube and a data cable embedded in the outer tube. To simplify the composition and facilitate understanding of the technical solution of this application by those skilled in the art, the drawings of this application only depict the outer tube of the imaging catheter 220 and omit the data cable inside it.

[0031] Furthermore, the front end of the imaging probe 210 has a narrow aperture and a very small spatial location. Using a micro-chip LED would make heat dissipation difficult to resolve, and the light source's power is relatively low, limiting overall illumination brightness. Taking into account factors such as the device's overall size, weight, practicality, and safety, this device utilizes a fiber optic illumination system. This system, composed of optical fiber and an external cold light source, ensures the illumination system's performance. The external cold light source is used to adjust parameters such as light intensity and color temperature, and the illumination fiber is used to direct light into the target field of view for illumination.

[0032] In some preferred embodiments, the end of the imaging catheter 220 close to the imaging probe 210 can be bent within a plane, and the driving assembly 300 includes a traction member 310 and two traction ropes 320. The two traction ropes 320 are arranged on both sides of the imaging catheter 220. One end of the traction rope 320 is connected to the imaging probe 210, and the other end is connected to the traction member 310. The traction member 310 drives the two traction ropes 320 to move synchronously in opposite directions.

[0033] In the above embodiment, the traction member 310 drives the two traction ropes 320 to move synchronously in opposite directions. Under the traction of the two traction ropes 320, the imaging catheter 220 can be bent, and then the rotation angle of the imaging probe 210 can be driven to change the shooting angle of the imaging probe 210.

[0034] Any implementation of the traction member 310 that can drive the two traction ropes 320 to move synchronously in opposite directions is feasible. In some preferred embodiments, the traction member 310 includes a traction drive unit 311 and two sliders 312. The two sliders 312 are slidably arranged on the shell 100 along the axial direction of the imaging catheter 220. The traction drive unit 311 drives the two sliders 312 to move synchronously in opposite directions. The two traction ropes 320 are respectively connected to the two sliders 312.

[0035] In the above embodiment, when the traction rope 320 needs to be driven to move, the traction driving part 311 is used to drive the two sliders 312 to slide relative to the shell 100. Since the two traction ropes 320 are respectively connected to the two sliders 312, the traction ropes 320 can be driven to move synchronously in opposite directions.

[0036] It is understandable that the slider 312 is provided with a disc and a clamping screw, and the end of the traction rope 320 is wrapped around the clamping screw. By continuing to rotate the clamping screw, the traction rope 320 can be compressed onto the circle using the clamping screw.

[0037] On the basis of the above embodiments, in some preferred embodiments, the traction drive unit 311 includes a first motor 3111 and a first screw rod 3112, the first screw rod 3112 has two sections of threads with opposite spiral directions, the slider 312 opens a first screw hole 3121, and the first screw holes 3121 of the two sliders 312 are respectively screwed to the two sections of threads, and the first motor 3111 drives the first screw rod 3112 to rotate.

[0038] In the above embodiment, the first motor 3111 drives the first screw rod 3112 to rotate. Since the spiral directions of the two sections of the thread are opposite, the two sliders 312 can be driven to slide synchronously in opposite directions.

[0039] Any implementation that can drive the slider 312 to slide relative to the shell 100 is feasible. In some preferred embodiments, the slider 312 is provided with a guide hole 3122, and the shell 100 includes a guide rod 131, which is passed through the guide hole 3122 to enable the slider 312 to slide along the guide rod 131.

[0040] In some preferred embodiments, a plurality of first bending grooves 221 and a plurality of second bending grooves 222 are provided on the side wall of the imaging catheter 220 near one end of the imaging probe 210. The plurality of first bending grooves 221 and the plurality of second bending grooves 222 are staggered, and the first bending grooves 221 and the second bending grooves 222 are respectively located on both sides of the catheter.

[0041] In the above embodiment, when the imaging catheter 220 needs to be bent toward the first bending groove 221, the opening of the first bending groove 221 is reduced, while the opening of the second bending groove 222 is increased. When the imaging catheter 220 needs to be bent toward the second bending groove 222, the opening of the second bending groove 222 is reduced, while the opening of the first bending groove 221 is increased.

[0042] In some preferred embodiments, the shell 100 includes an outer cover 120 and an inner support frame 130, the sleeve 110 is connected to the inner support frame 130, and the inner support frame 130 is slidably set on the outer cover 120. The Eustachian tube balloon dilatation catheter device also includes an extension component 400, which drives the inner support frame 130 to move relative to the outer cover 120 and can make the inner support frame 130 stay at any position on its sliding trajectory.

[0043] The shell 100 includes an inner support frame 130 and an outer cover 120, the sleeve 110 is connected to the outer cover 120, the imaging catheter 220 is connected to the inner support frame 130, and the inner support frame 130 is slidably built into the outer cover 120. The Eustachian tube balloon dilatation catheter device also includes an extension component 400, which drives the inner support frame 130 to move relative to the outer cover 120, thereby driving the imaging catheter 220 to move relative to the sleeve 110.

[0044] In the above embodiment, the extension assembly 400 drives the inner support frame 130 to move relative to the outer cover 120 to drive the sleeve 110 to move, so that the imaging catheter 220 is extended into the patient's body, and then the imaging probe 210 and the balloon guidewire are introduced into the patient's body.

[0045] On the basis of the above embodiments, in some preferred embodiments, a guide rail (not shown in the figure) is laid on the outer cover 120, and the inner support frame 130 slides along the guide rail (not shown in the figure).

[0046] Any embodiment of the extension assembly 400 is feasible as long as it can drive the inner support frame 130 to move relative to the outer cover 120. In some preferred embodiments, the inner support frame 130 is provided with a second screw hole 132, and the extension assembly 400 includes a second screw rod 410 and a second motor 420. The second screw rod 410 is screwed into the second screw hole 132, and the second motor 420 drives the second screw rod 410 to rotate. The rotating second screw rod 410 can drive the inner support frame 130 to move along the axis of the second screw rod 410.

[0047] In some preferred embodiments, the inner support frame 130 and the outer cover 120 enclose a receiving chamber 140 for receiving the extension assembly 400 and the drive assembly 300. Thus, the inner support frame 130 and the outer cover 120 can be used to protect the extension assembly 400 and the drive assembly 300.

[0048] Working Principle: When using the Eustachian tube balloon dilation catheter device, the physician holds the Eustachian tube balloon dilation catheter device and inserts the imaging catheter 220 and balloon guidewire into the nasal cavity of a lying patient. The second motor 420 is activated to rotate the second screw, thereby driving the housing 420 to move relative to the outer cover 120, further driving the imaging catheter 220 into the patient's body, and thus driving the balloon guidewire and imaging probe 210 deeper into the patient's body. When the imaging probe 210's shooting angle needs to be adjusted, the traction member 310 drives the two traction ropes 320 to move synchronously in opposite directions, thereby bending the imaging catheter 220 and ultimately changing the imaging probe 210's shooting angle. The field of view provided by the imaging probe 210 allows the physician to clearly and accurately locate and observe the lesion, facilitating a quick diagnosis of the condition. The physician manually operates the balloon guidewire to the lesion site. The expansion of the balloon guidewire causes blockage in the Eustachian tube to occur, reopening the inflamed area. The balloon guidewire is then retracted into the Eustachian tube balloon dilation catheter device, allowing pus in the lesion to be discharged, achieving a therapeutic effect on ETD. After the treatment is completed, the above operation can be repeated to observe the lesion site again, facilitating the physician's accurate judgment on subsequent treatment. The Eustachian tube balloon dilation catheter device provided by the invention can adjust the shooting angle of the imaging probe 210, avoiding visual angles that cannot be photographed within the patient's body, making the surgical operation more convenient.

[0049] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A Eustachian tube balloon dilatation catheter device, characterized in that: include: The housing includes a sleeve through which the balloon guide wire is passed; An imaging assembly comprising an imaging probe and an imaging catheter, wherein the imaging probe is rotatably disposed at one end of the sleeve, and the imaging catheter is rotatably disposed at one end of the imaging catheter, and the imaging catheter is disposed in the sleeve and connected to the imaging probe; and a driving assembly, which drives the imaging probe to rotate and enables the imaging probe to stay at any position on its rotation trajectory; The end of the imaging catheter close to the imaging probe can be bent in a plane, and the driving assembly includes a traction member and two traction ropes. The two traction ropes are arranged on both sides of the imaging catheter. One end of the traction rope is connected to the imaging probe, and the other end is connected to the traction member. The traction member drives the two traction ropes to move synchronously in opposite directions. The traction member includes a traction drive unit and two sliders. The two sliders are slidably arranged on the housing along the axis of the imaging catheter. The traction drive unit drives the two sliders to move synchronously in opposite directions. The two traction ropes are respectively connected to the two sliders. The traction drive unit includes a first motor and a first screw rod, the first screw rod has two sections of threads with opposite spiral directions, the slider has a first screw hole, and the first screw holes of the two sliders are respectively screwed to the two sections of threads, the first motor drives the first screw rod to rotate, thereby driving the two sliders to slide synchronously in opposite directions.

2. The Eustachian tube balloon dilatation catheter device according to claim 1, characterized in that: The slider is provided with a guide hole, and the housing includes a guide rod, which is passed through the guide hole so that the slider slides along the guide rod.

3. The Eustachian tube balloon dilatation catheter device according to claim 1, characterized in that: A plurality of first bending grooves and a plurality of second bending grooves are formed on a side wall of the imaging catheter close to one end of the imaging probe. The plurality of first bending grooves and the plurality of second bending grooves are staggered and located on both sides of the catheter respectively.

4. The Eustachian tube balloon dilatation catheter device according to claim 1, characterized in that: The shell includes an inner support frame and an outer cover, the sleeve is connected to the outer cover, the imaging catheter is connected to the inner support frame, and the inner support frame is slidably built into the outer cover. The Eustachian tube balloon dilatation catheter device also includes an extension component, which drives the inner support frame to move relative to the outer cover to drive the imaging catheter to move relative to the sleeve.

5. The Eustachian tube balloon dilatation catheter device according to claim 4, characterized in that: A guide rail is laid on the outer cover, and the inner support frame slides along the guide rail.

6. The Eustachian tube balloon dilatation catheter device according to claim 4, characterized in that: The inner support frame is provided with a second screw hole, and the extension component includes a second screw rod and a second motor. The second screw rod is screwed into the second screw hole, and the second motor drives the second screw rod to rotate.

7. The Eustachian tube balloon dilatation catheter device according to claim 4, characterized in that: The inner support frame and the outer cover together form a receiving cavity, and the receiving cavity is used to receive the extension assembly and the driving assembly.

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