A balloon eustachian tube placement device

Abstract

The application provides a eustachian tube balloon placement device, and belongs to the technical field of medical auxiliary equipment, which comprises a main guide tube, a plurality of groups of placement sleeves, a plurality of groups of moving assemblies, four groups of traction assemblies, a plurality of groups of push-pull assemblies and a plurality of connecting parts. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is fixedly connected with the balloon. The end part of the last placement sleeve is

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, specifically to a eustachian tube balloon placement device. Background Technology

[0002] The eustachian tube is a crucial, dark passage located in the upper part of the anterior wall of the tympanic cavity. One end enters the tympanic cavity through the anterior wall, while the other end enters the nasopharynx. It serves as a passage connecting the tympanic cavity and the nasopharynx and is an important component of the middle ear's sound transmission mechanism. Eustachian tube balloon dilation is an important treatment for patients with chronic eustachian tube dysfunction, refractory secretory otitis media, secretory otitis media caused by radiotherapy for nasopharyngeal carcinoma, and recurrent tympanic membrane retraction in the early stages after tympanoplasty. A very thin balloon catheter is inserted through the nose into the pharyngeal opening of the eustachian tube. The balloon is then fixed to the cartilaginous segment of the eustachian tube. A pressure pump inflates the balloon to a certain pressure, and it is removed after 2 minutes, thus dilating the eustachian tube.

[0003] However, due to the arched shape and unique location of the Eustachian tube, its dilation is quite challenging. If accurate positioning is not achieved, the dilation effect is significantly reduced. Currently, the balloon insertion device commonly used for Eustachian tube balloon dilation is a metal guide tube. To facilitate accurate balloon insertion, the end of the metal guide tube needs to maintain a certain degree of curvature. However, the metal guide tube is rigid, and its curvature can only be preset during manufacturing or preoperatively; it cannot be adjusted in real-time during the procedure. Each patient's physiological structure is different, and existing insertion devices cannot accommodate the actual curvature of the Eustachian tube, greatly affecting balloon positioning and dilation effectiveness. Furthermore, the lack of posture adjustment for the rigid metal guide tube makes it highly susceptible to collision and damage with other physiological tissues. Therefore, there is an urgent need for a balloon insertion aid with an adjustable and controllable end and curvature. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a eustachian tube balloon placement device. This device, by controlling the bending state of the insertion end, can accurately match the patient's eustachian tube, enabling precise balloon placement for treatment.

[0005] The present invention provides the following technical solution.

[0006] A eustachian tube balloon placement device includes:

[0007] Master boot recorder;

[0008] Multiple sets of insertion sleeves are sequentially and fixedly installed at the front end of the main guide tube; two adjacent sets of insertion sleeves are connected by multiple flexible connecting rods; the end of the insertion sleeve is fixedly connected to the balloon, the balloon is connected to a ventilation tube, and the ventilation tube extends to the other end of the main guide tube and is connected to an inflatable balloon.

[0009] Two sets of moving components are sequentially mounted at the end of the main guide tube;

[0010] Four sets of traction components are circumferentially evenly arranged on the outer side of the insertion sleeve at the end; each set of traction components includes:

[0011] A flexible adjusting rod, one end of which is fixedly connected to the outside of the insertion sleeve at the end, and the other end of which is connected to a set of moving components; two opposing flexible adjusting rods are driven to move in opposite directions along the axial direction by a set of moving components;

[0012] Multiple sets of push-pull components and connecting parts; each set of push-pull components is slidably disposed on the outside of one of the insertion sleeves and fixed to the flexible connecting rod; each connecting part is flexibly connected to the push-pull component and is driven to move back and forth by the push-pull component; each connecting part is fixedly connected to the end of the insertion sleeve at the rear end.

[0013] Preferably, it further includes:

[0014] Multiple flexible support rods are evenly arranged circumferentially on the outside of the insertion sleeve at the front end; the two ends of each flexible support rod are fixedly connected to the end and side of the insertion sleeve, respectively, and the contact point with the outer wall of the balloon is in the shape of a long ring.

[0015] Preferably, each group of the moving components includes:

[0016] A toothed ring is rotatably mounted on the outer wall of the main guide tube;

[0017] Two first gears are respectively mounted on the outer wall of the main guide tube via gear brackets, and both mesh with the gear ring;

[0018] Two lead screws have opposite thread directions, and one end of each lead screw passes through two first gears and a gear carrier respectively; the lead screws are threadedly engaged with the first gears and rotatably engaged with the gear carrier; the other ends of the two lead screws are fixedly connected to the two flexible adjusting rods respectively.

[0019] The rotating sleeve is rotatably mounted on the main guide tube and fixedly connected to one end of the gear ring.

[0020] Preferably, it further includes an operating ring, which is rotatably sleeved on the main guide tube; the two sets of moving components are symmetrically arranged, the outer walls of the two rotating sleeves are provided with splines, and the ring wall of the operating ring is provided with a groove that mates with the splines.

[0021] Preferably, each set of push-pull components includes:

[0022] A movable block; the flexible adjusting rod passes through the movable block and is fixedly connected to the movable block; a sliding groove is provided on the outer wall of the insertion sleeve; the lower end of the movable block is slidably disposed in the sliding groove;

[0023] A drive rack is fixedly mounted on one side of the moving block;

[0024] The second gear is rotatably mounted on the outer wall of the insert sleeve via a rotating shaft, and one side of it meshes with the drive rack.

[0025] The driven rack is limited to the outer wall of the insertion sleeve by a limiting sleeve; the driven rack meshes with the other side of the second gear; one end of the driven rack is connected to the connecting part by a flexible rod.

[0026] Preferably, it further includes:

[0027] A movable ring is fixedly installed at the end of the main guide tube;

[0028] A fixed ring has a screw and a smooth rod fixedly mounted on its ring surface; both the screw and the smooth rod pass through the movable ring, the smooth rod is slidably engaged with the movable ring, and the screw is slidably engaged with the movable ring.

[0029] A nut is threaded into the screw; one end of the nut is rotatably connected to the movable ring.

[0030] Preferably, the outer side of the fixing ring is provided with two handles.

[0031] Preferably, the inflatable bladder is connected to the venting tube via a one-way valve, and an exhaust port is movably provided on the venting tube.

[0032] Beneficial effects of this invention:

[0033] This invention proposes a balloon insertion device for the Eustachian tube. The device uses four sets of flexible adjustment rods to control the deflection angle of the end. At the same time, the flexible adjustment rods drive the push-pull assembly to adjust the distance between the two insertion sleeves, thereby making the multiple interconnected insertion sleeves form a certain curvature. That is, the insertion end is in a curved state, which realizes the matching of the balloon insertion device with the Eustachian tube. While facilitating balloon positioning, it ensures that there will be no collision with the Eustachian tube wall.

[0034] The device's insertion sleeve is a rigid body, which facilitates maintaining the overall position of the balloon insertion end. While maintaining the existing rigid and precise positioning mode, it increases the multi-directional and multi-positional adjustability of the balloon insertion end, greatly improving the adaptability of the entire balloon insertion device and accurately matching the needs of different patients. In addition, the device is relatively simple to operate; multi-directional bending adjustment and minor adjustments to the front and rear position can be achieved by rotating the operating ring and nut at the end. Attached Figure Description

[0035] Figure 1 This is an overall structural diagram of a Eustachian tube balloon placement device according to an embodiment of the present invention;

[0036] Figure 2 This is a partial structural diagram of the balloon installation structure of a eustachian tube balloon placement device according to an embodiment of the present invention;

[0037] Figure 3 This is a partial structural diagram of the push-pull structure of a Eustachian tube balloon placement device according to an embodiment of the present invention;

[0038] Figure 4 This is a partial structural diagram of the handheld end of a Eustachian tube balloon placement device according to an embodiment of the present invention;

[0039] Figure 5 This is a front view of a eustachian tube balloon placement device according to an embodiment of the present invention.

[0040] The components are as follows: 1. Balloon; 2. Flexible support rod; 3. Insertion sleeve; 4. Flexible connecting rod; 5. Flexible adjusting rod; 6. Moving block; 7. Ventilation tube; 8. Main guide tube; 9. Lead screw; 10. Handheld part; 11. Inflatable bag; 12. Second gear; 13. Drive rack; 14. Driven rack; 15. Limiting sleeve; 16. Connecting part; 17. Gear ring; 18. Rotating sleeve; 19. Screw; 20. Nut; 21. Moving ring; 22. Fixed ring; 23. Exhaust port; 24. Operating ring; 25. First gear. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 merely illustrative and not intended to limit the invention.

[0042] Example 1

[0043] A eustachian tube balloon placement device, such as Figure 1-5 As shown, it includes a main guide tube 8, two sets of moving components, four sets of traction components, and multiple sets of insertion sleeves 3. Each traction component includes a flexible adjusting rod 5, as well as multiple sets of push-pull components and connecting parts 16.

[0044] like Figure 1 , Figure 4 As shown, multiple sets of insertion sleeves 3 are sequentially and fixedly installed at the front end of the main guide tube 8; adjacent sets of insertion sleeves 3 are connected by multiple flexible connecting rods 4; the end of the insertion sleeve 3 is fixedly connected to the balloon 1, the balloon 1 is connected to a ventilation tube 7, the ventilation tube 7 extends to the other end of the main guide tube 8 and is connected to an inflatable balloon 11. Wherein, as... Figure 4 As shown, the inflatable bladder 11 is connected to the venting tube 7 via a one-way valve, and the venting tube 7 is movably provided with an exhaust port 23. It also includes multiple flexible support rods 2 circumferentially and evenly arranged on the outside of the insertion sleeve 3 at the front end; the two ends of each flexible support rod 2 are fixedly connected to the end and side of the insertion sleeve 3 respectively, and the contact point with the outer wall of the bladder 1 forms a long annular shape.

[0045] like Figure 4 As shown, two sets of moving components are sequentially mounted at the end of the main guide tube 8.

[0046] Four sets of traction components are evenly arranged circumferentially on the outer side of the insertion sleeve 3 at the end; each set of traction components includes: a flexible adjusting rod 5, one end of which is fixedly connected to the outer side of the insertion sleeve 3 at the end, and the other end of which is connected to a set of moving components; two opposing flexible adjusting rods 5 are driven to move in opposite directions along the axial direction by a set of moving components; multiple sets of push-pull components and connecting parts 16; each set of push-pull components is slidably arranged on the outer side of an insertion sleeve 3 and fixed to a flexible connecting rod 5; each connecting part 16 is flexibly connected to the push-pull component and is driven to move back and forth by the push-pull component; each connecting part 16 is fixedly connected to the end of the insertion sleeve 3 at the rear end.

[0047] Each set of moving components includes: a gear ring 17, rotatably mounted on the outer wall of the main guide tube 8; two first gears 25, respectively mounted on the outer wall of the main guide tube 8 via gear frames, and both meshing with the gear ring 17; two lead screws 9, with opposite thread directions, one end of which passes through the two first gears 25 and the gear frame respectively; the lead screws 9 are threadedly engaged with the first gears 25 and rotatably engaged with the gear frame; the other ends of the two lead screws 9 are fixedly connected to two flexible adjusting rods 5 respectively; and a rotating sleeve 18, rotatably mounted on the main guide tube 8 and fixedly connected to one end of the gear ring 17. Rotating the sleeve 18 drives the gear ring 17 to rotate, which in turn drives the two first gears 25 to rotate, allowing the lead screws 9 to move back and forth, causing the inserted sleeve 3 at the end to bend and adjust the angle of the end.

[0048] Among them, such as Figure 3As shown, each push-pull assembly includes: a moving block 6; a flexible adjusting rod 5 passing through the moving block 6 and fixedly connected to it; a groove on the outer wall of the insertion sleeve 3; the lower end of the moving block 6 slidably disposed within the groove; a driving rack 13 fixedly disposed on one side of the moving block 6; a second gear 12 rotatably disposed on the outer wall of the insertion sleeve 3 via a rotating shaft, one side of which meshes with the driving rack 13; a driven rack 14 limited to the outer wall of the insertion sleeve 3 by a limiting sleeve 15; the driven rack 14 meshes with the other side of the second gear 12; one end of the driven rack 14 is connected to the connecting part 16 via a flexible rod. By driving the push-pull assembly through the moving assembly, while adjusting the angle of the insertion sleeve 3 at the end, the angle of other insertion sleeves 3 is assisted to deflect, thus not only achieving bending at the end but also achieving an overall bending state for the entire insertion front end.

[0049] Furthermore, to facilitate the adjustment of the two bending angles, an operating ring 24 is included, which is rotatably sleeved on the main guide tube 8; two sets of moving components are symmetrically arranged, and the outer walls of the two rotating sleeves 18 are provided with splines. The ring wall of the operating ring 24 has a groove that mates with the spline. The angle deflection on the plane can be adjusted by engaging the operating ring 24 with one of the splines.

[0050] To improve the adjustment accuracy of balloon 1, such as Figure 4 As shown, it also includes: a movable ring 21, fixedly disposed at the end of the main guide tube 8; a fixed ring 22, on which a screw 19 and a smooth rod are fixedly disposed; both the screw 19 and the smooth rod pass through the movable ring 21, the smooth rod and the screw 19 are slidably engaged with the movable ring 21; a nut 20, threadedly engaged with the screw 19; one end of the nut 20 is rotatably connected to the movable ring 21. For ease of operation, two hand-held parts 10 are provided on the outer side of the fixed ring 22.

[0051] In this embodiment:

[0052] This device provides an angle-adjustable balloon placement structure. It is elongated overall with adjustable end posture and angle at the placement end, allowing for manual adjustment at the distal end to assist in balloon placement.

[0053] (1) Adjustable end angle

[0054] The device is equipped with multiple insertion sleeves 3, each connected by multiple flexible connecting rods 4 for easy bending. The non-flexible body combination structure avoids the problem of uncontrollable end positions in fully flexible bodies. During adjustment, end-point adjustment is used, achieved solely through the drive operating ring 24. The operating ring 24 engages with two rotating sleeves 18 via splines. During drive, the gear ring 17 drives the first gear 25 to rotate, which in turn moves the lead screw 9 back and forth (one end of the lead screw 9 is connected to the end of the flexible adjusting rod 5 and is limited, thus allowing movement), pulling the flexible adjusting rod 5. Since the threads of the two lead screws 9 are opposite, the two symmetrical flexible adjusting rods 5 move in opposite directions, resulting in the insertion sleeves 3 at their ends being bent.

[0055] However, the bending state of the balloon 1 end may not match the actual state of the Eustachian tube, requiring further adjustment of the other insertion sleeves 3 to achieve a unified bent insertion state. At this point, the flexible adjustment rod 5 moves, simultaneously moving the rack 13, which in turn pushes the rack and pinion assembly, stretching one side of adjacent insertion sleeves 3 and pushing the other side open, thus bending the two adjacent insertion sleeves 3. Similarly, multiple push-pull structures achieve posture adjustment of multiple insertion sleeves 3, making the insertion device more closely match the actual state of the Eustachian tube.

[0056] The device uses four sets of flexible adjustment rods to control the deflection angle of the end. At the same time, the flexible adjustment rods drive the push-pull assembly to adjust the distance between the two insertion sleeves 3, thereby making the multiple interconnected insertion sleeves 3 form a certain curvature, that is, the insertion end is in a curved state, realizing the matching of the balloon insertion device with the Eustachian tube. While facilitating the positioning of the balloon 1, it ensures that there will be no collision with the Eustachian tube wall.

[0057] (2) Fine-tuning of front and rear positions

[0058] When inserting balloon 1, the insertion depth needs to be considered. The device is equipped with a fine-tuning structure to assist in fine-tuning the insertion depth. By rotating nut 20, since screw 19 is in sliding engagement with fixing ring 22, screw 19 slides on fixing ring 22, thereby driving the front insertion end to move back and forth, realizing fine-tuning of the insertion end's position.

[0059] The device is relatively easy to operate. Multi-directional bending adjustment and slight adjustment of front and rear position can be achieved by rotating the operating ring 24 and nut 20 at the end.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A balloon eustachian tube placement device, characterized in that, The utility model relates to a kind of balloon catheter, including: Main guide pipe (8); Multiple groups of implantation sleeve (3) are sequentially fixedly arranged in the front end of the main guide pipe (8);Two groups of implantation sleeve (3) adjacent are connected by multiple flexible connecting rods (4);The end of the implantation sleeve (3) of the end is fixedly connected with balloon (1), the balloon (1) is communicated with air pipe (7), the air pipe (7) extends to the other end of main guide pipe (8) and is connected with inflatable bag (11); Two groups of moving assemblies are sequentially erected in the end of the main guide pipe (8); Four groups of traction assemblies are circumferentially uniformly arranged on the outside of the implantation sleeve (3) of the end;Each group of traction assemblies includes: Flexible adjusting rod (5), one end is fixedly connected with the outside of the implantation sleeve (3) of the end, the other end is connected with a group of moving assemblies;Two opposite flexible adjusting rods (5) are driven to move in the opposite direction along the axial direction by a group of moving assemblies; Multiple groups of push-pull assemblies and connecting parts (16);Each group of push-pull assemblies is slidably arranged outside one implantation sleeve (3) and is fixed with the flexible adjusting rod (5);Each connecting part (16) is flexibly connected with the push-pull assembly and is driven to move forward and backward by the push-pull assembly;Each connecting part (16) is respectively fixedly connected with the end of the implantation sleeve (3) of the rear end; Further including: Multiple flexible support rods (2) are circumferentially uniformly arranged on the outside of the implantation sleeve (3) of the front end;Both ends of each flexible support rod (2) are respectively fixedly connected with the end and the side of the implantation sleeve (3), and the contact part with the outer wall of the balloon (1) is in strip ring shape; Each group of moving assemblies includes: Gear ring (17), rotationally arranged on the outer wall of the main guide pipe (8); Two first gears (25) are respectively arranged on the outer wall of the main guide pipe (8) by gear frame, and are engaged with the gear ring (17); Two lead screws (9) are opposite in screw direction, one end of each lead screw (9) respectively passes through two first gears (25) and gear frame;The lead screw (9) is threadedly connected with the first gear (25) and rotationally connected with the gear frame;The other end of the two lead screws (9) is respectively fixedly connected with the two flexible adjusting rods (5); Rotating sleeve (18), rotationally arranged on the main guide pipe (8) and fixedly connected with one end of the gear ring (17); Further including operating ring (24), rotationally arranged on the main guide pipe (8);Two groups of moving assemblies are symmetrically arranged, the outer wall of two rotating sleeves (18) is provided with spline, and the recess groove matched with the spline is formed in the ring wall of the operating ring (24); Each group of push-pull assemblies includes: Moving block (6);The flexible adjusting rod (5) passes through the moving block (6) and is fixedly connected with the moving block (6);The outer wall of the implantation sleeve (3) is provided with a sliding groove;The lower end of the moving block (6) is slidably arranged in the sliding groove; Drive rack (13), fixedly arranged on one side of the moving block (6); Second gear (12), through the rotation shaft rotation is arranged in the outer wall of the set into the sleeve (3), one side with the drive rack (13) meshing; Driven rack (14), through the limiting sleeve (15) is limited in the outer wall of the set into the sleeve (3); the driven rack (14) and the other side of the second gear (12) meshing; one end of the driven rack (14) and the connecting part (16) are connected by flexible rod.

2. A balloon Eustachian tube placement device according to claim 1, wherein, Also includes: The mobile ring (21) is fixedly arranged at the end of the main guide pipe (8); The fixed ring (22) is provided with a screw rod (19) and a light rod on the surface of the ring; the screw rod (19) and the light rod pass through the mobile ring (21), the light rod is in sliding fit with the mobile ring (21), and the screw rod (19) is in sliding fit with the mobile ring (21); The nut (20) is in threaded fit with the screw rod (19); one end of the nut (20) is rotatably connected with the mobile ring (21).

3. A balloon Eustachian tube placement device according to claim 2, wherein, The outer side of the fixed ring (22) is provided with two hand holding parts (10).

4. A Eustachian balloon catheterization device according to claim 1, wherein, The inflatable bag (11) is communicated with the vent pipe (7) through a one-way valve, and the vent pipe (7) is movably provided with an exhaust port (23).

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