A hydrogel filling device for tracheal defect repair

Abstract

The utility model discloses a kind of hydrogel filling devices for tracheal defect repair, including fibrobronchoscope, further including delivery module and dynamic sealing module;The delivery module includes the propulsion chamber being arranged at the end of fibrobronchoscope, the propulsion seat being arranged in the inner cavity of propulsion chamber, and the curing lamp being coaxially arranged at the outside end portion of propulsion seat;The dynamic sealing module includes the self-adapting opening and closing structure being arranged at the end wall of propulsion chamber, and the self-adapting opening and closing structure has the following states: sealing state, its inner surface forms closed sealing surface, for isolating operating area;Passing state, its inner surface expands to the passing section allowing curing lamp to pass through.The utility model is through the self-adapting opening and closing structure of annular airbag, in its inflation state, its inner wall adheres to form annular sealing surface, can play protective effect to curing lamp, prevent hydrogel filling from affecting it, in deflation state, space for curing lamp passing can be formed.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a hydrogel filling device for tracheal defect repair. Background Technology

[0002] The trachea plays a vital role in human respiration; however, tracheal defects are not uncommon due to various reasons such as trauma, tumor removal, and congenital malformations. If tracheal defects are not repaired promptly and effectively, they can severely impair a patient's respiratory function and even threaten their life.

[0003] Traditional methods for repairing tracheal defects have many limitations. For example, while autologous tissue transplantation has good biocompatibility, it causes additional trauma to patients, the source of available autologous tissue is limited, and it may also cause complications at the donor site. Although artificial trachea replacement surgery can solve the problem of tracheal defects to some extent, the selection of materials for artificial tracheas is difficult, and it faces problems such as poor compatibility with human tissues, easy immune rejection, and difficulty in achieving good integration with surrounding tissues. Postoperative complications such as tracheal stenosis and infection may also occur.

[0004] Against this backdrop, hydrogels have gradually attracted attention due to their unique properties. Hydrogels possess excellent biocompatibility, can mimic the soft characteristics of human tissue, and can be tailored to different application needs through formulation adjustments. One application of hydrogels is in the repair of tracheal defects.

[0005] Currently, hydrogel is typically filled into the area to be repaired using a bronchoscope, and then cured with a curing lamp. However, during the filling process, the hydrogel may affect the curing lamp at the end, causing a decrease in the curing performance of the lamp and making it unsuitable for use. Utility Model Content

[0006] The purpose of this invention is to overcome or at least partially solve the above-mentioned problems by providing a hydrogel filling device for tracheal defect repair.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a hydrogel filling device for tracheal defect repair, comprising a fiber bronchoscope and a lens disposed at its end, and a hydrogel filling channel opened along its internal axial direction, and further comprising a delivery module and a dynamic sealing module.

[0008] The delivery module includes a propulsion chamber disposed at the end of the fiber optic bronchoscope, a propulsion seat disposed within the inner cavity of the propulsion chamber, and a curing lamp coaxially disposed at the outer end of the propulsion seat.

[0009] The dynamic sealing module includes an adaptive opening and closing structure disposed on the end wall of the propulsion chamber, the adaptive opening and closing structure having the following states:

[0010] In its sealed state, its inner surface forms a closed sealing surface to isolate the operating area;

[0011] In the passageway state, its inner surface expands to allow the curing lamp to pass through the passageway cross section.

[0012] In a preferred embodiment, the adaptive opening and closing structure is an annular airbag. When the annular airbag is inflated, its walls completely fit to form an annular sealing surface. When deflated, its inner diameter is larger than the maximum outer diameter of the curing lamp to form a passage space.

[0013] In a preferred embodiment, the dynamic sealing module further includes a ring disposed on the end wall of the propulsion chamber, and the annular airbag is embedded in the ring.

[0014] In a preferred embodiment, the two end faces of the ring located on the outer side of the annular airbag are provided with convex rings, and the inner diameter of the convex rings is larger than the outer diameter of the curing lamp.

[0015] In a preferred embodiment, the annular airbag is connected to an inflation / deflation tube extending to the proximal end of the fiberoptic bronchoscope, and the inflation / deflation tube is arranged parallel to the outside of the hydrogel-filled channel.

[0016] In a preferred embodiment, the propulsion seat is a piston structure, and the propulsion chamber is connected to an inflation / deflation tube extending to the proximal end of the fiberoptic bronchoscope, the inflation / deflation tube being arranged parallel to the outside of the hydrogel-filled channel.

[0017] In a preferred embodiment, flow regulating valves are installed on the inflation and deflation pipes of both the propulsion chamber and the annular airbag.

[0018] In a preferred embodiment, the curing lamps are a ring-shaped array of lamps, which are fixed to the end face of the propulsion seat by a flexible connecting arm.

[0019] Compared with the prior art, the present invention provides a hydrogel filling device for tracheal defect repair. Through the adaptive opening and closing structure of the annular airbag, in its inflated state, its inner wall fits to form an annular sealing surface, which can protect the curing lamp and prevent the hydrogel from affecting it during filling. In the deflated state, it can form a space for the curing lamp to pass through, so as to facilitate the subsequent operation of the curing lamp.

[0020] Through the coordinated design of the annular airbag and the propulsion chamber, when the device is withdrawn, the curing lamp returns to the propulsion chamber, and the closing of the annular airbag ensures that the device is safely withdrawn from the trachea, reducing potential risks to the patient.

[0021] In addition, both the annular balloon and the propulsion chamber are connected to inflation and deflation tubes that extend to the proximal end of the fiberoptic bronchoscope and are parallel to the outside of the hydrogel-filled channel, making operation convenient. The flow regulating valve installed on the inflation and deflation tubes can precisely control the flow rate and speed of inflation and deflation, improving the accuracy and safety of the operation and ensuring the smooth progress of the surgery. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0024] Figure 3 This is a top view of the structure of this utility model;

[0025] Figure 4 This is a partial cross-sectional view of the end of the fiberoptic bronchoscope in this invention.

[0026] In the diagram: 1. Fiberoptic bronchoscope; 2. Lens; 3. Hydrogel-filled channel; 4. Propulsion chamber; 5. Propulsion seat; 6. Curing lamp; 7. Ring; 8. Annular airbag. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this description, those skilled in the art can make creative modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0029] This invention relates to a hydrogel filling device for tracheal defect repair, which solves the technical problems in the prior art. The overall concept is as follows:

[0030] Example 1:

[0031] Please see Figures 1-4 A hydrogel filling device for tracheal defect repair includes a fiberoptic bronchoscope 1 with a lens 2 embedded at its end. The lens 2 can clearly observe the internal condition of the trachea and provide visualization support for surgical operations. The fiberoptic bronchoscope 1 has a hydrogel filling channel 3 opened along the axial direction inside for delivering hydrogel to the tracheal defect site. It also includes a delivery module and a dynamic sealing module.

[0032] The delivery module includes a propulsion chamber 4 located at the end of the fiberoptic bronchoscope 1, a propulsion seat 5 with an inner cavity of the propulsion chamber 4, and a curing lamp 6 coaxially located at the outer end of the propulsion seat 5. The curing lamp 6 is used to cure the filled hydrogel. The curing lamp 6 is a ring array of UV LED lamps, which is fixed to the end face of the propulsion seat 5 by a flexible connecting arm. The angle can be flexibly adjusted according to the surgical needs to ensure uniform curing of the hydrogel.

[0033] The dynamic sealing module includes an adaptive opening and closing structure disposed on the end wall of the propulsion chamber 4. The adaptive opening and closing structure has the following states: sealed state, in which its inner surface forms a closed sealing surface to isolate the operating area; and passable state, in which its inner surface expands to allow the curing lamp 6 to pass through a passable cross section.

[0034] In specific implementation, the adaptive opening and closing structure is an annular airbag 8. When the annular airbag 8 is inflated, its walls completely fit to form an annular sealing surface to protect the curing lamp 6. When deflated, its inner diameter is larger than the maximum outer diameter of the curing lamp 6 to form a passage space, which facilitates the passage of the curing lamp 6 inside the annular airbag 8.

[0035] In specific implementation, the dynamic sealing module also includes a ring 7 set on the end wall of the propulsion chamber 4. The annular airbag 8 is embedded in the ring 7. The two end faces of the ring 7 located on the outside of the annular airbag 8 are provided with convex rings, and the inner diameter of the convex rings is larger than the outer diameter of the curing lamp 6. The cooperation between the ring 7 and the convex rings can play a certain protective role for the annular airbag 8, ensuring that the annular airbag 8 deforms towards the internal space when inflated. At the same time, it can also play a certain limiting role for the propulsion seat 5, preventing it from detaching from the propulsion chamber 4.

[0036] In practice, the annular airbag 8 is connected to an inflation / deflation tube extending to the proximal end of the fiberoptic bronchoscope 1 for inflating and deflating the airbag. The inflation / deflation tube is arranged parallel to the outside of the hydrogel filling channel 3 for easy operation and management.

[0037] In specific implementation, the propulsion seat 5 can be a piston structure, and the propulsion chamber 4 is connected to an inflation / deflation tube extending to the proximal end of the fiber optic bronchoscope 1. The inflation / deflation tube is arranged parallel to the outside of the hydrogel filling channel 3 to control the air pressure in the propulsion chamber 4 and assist the movement of the propulsion seat 5.

[0038] In practice, flow regulating valves are installed on the inflation and deflation pipes of both the propulsion chamber 4 and the annular airbag 8, which can precisely control the flow rate and speed of inflation and deflation, thereby improving the accuracy and safety of operation.

[0039] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, and the specific work is as follows:

[0040] After the hydrogel filling is completed, the annular airbag 8 is deflated through the corresponding inflation / deflation tube, causing it to contract and its inner diameter to increase, creating a space for the curing lamp 6 to pass through. The propulsion chamber 4 is then inflated through the corresponding inflation / deflation tube, increasing the air pressure within it and pushing the propulsion seat 5. The propulsion seat 5 then carries the curing lamp 6 through the channel formed by the contraction of the annular airbag 8 to the filled hydrogel area. The curing lamp 6 is a ring-array of UV LED lights, fixed to the end face of the propulsion seat 5 via a flexible connecting arm, allowing for flexible angle adjustment according to surgical needs. When the power is turned on, the UV LED lights emit ultraviolet light of a specific wavelength, irradiating the hydrogel filled in the tracheal defect. Under the action of ultraviolet light, the relevant components in the hydrogel undergo a chemical reaction, rapidly transforming from a liquid state into a solid structure with a certain strength and shape, effectively repairing the tracheal defect and restoring normal tracheal physiological function.

[0041] After the hydrogel has cured and achieved the expected repair effect, medical personnel evacuate air from the propulsion chamber 4 through the inflation / deflation tube. The reduced air pressure in propulsion chamber 4 moves the propulsion seat 5, which in turn moves the curing lamp 6 through the channel formed by the contraction of the annular airbag 8 back into propulsion chamber 4. The annular airbag 8 is then inflated through the inflation / deflation tube. After inflation, the inner wall of the annular airbag 8 completely adheres to form a sealed structure, which is then protected by the curing lamp 6. The device can then be safely removed from the trachea. Throughout the process, flow control valves are installed on the inflation / deflation tubes of both propulsion chamber 4 and annular airbag 8 to precisely control the flow rate and speed of inflation and deflation, ensuring the accuracy and safety of the operation.

[0042] The above description of the embodiments is provided to facilitate understanding and use of the present invention by those skilled in the art. It is obvious to those skilled in the art that various modifications can be made to the embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.

Claims

1. A hydrogel filling device for tracheal defect repair, comprising a fiberoptic bronchoscope (1) and a lens (2) disposed at its end, and a hydrogel filling channel (3) axially formed therein, characterized in that: It also includes a delivery module and a dynamic sealing module; The delivery module includes a propulsion chamber (4) disposed at the end of the fiber bronchoscope (1), a propulsion seat (5) disposed inside the propulsion chamber (4), and a curing lamp (6) coaxially disposed at the outer end of the propulsion seat (5). The dynamic sealing module includes an adaptive opening and closing structure disposed on the end wall of the propulsion chamber (4), the adaptive opening and closing structure having the following states: In its sealed state, its inner surface forms a closed sealing surface to isolate the operating area; In the passage state, its inner surface expands to allow the curing lamp (6) to pass through the passage cross section.

2. The hydrogel filling device for tracheal defect repair according to claim 1, characterized in that: The adaptive opening and closing structure is an annular airbag (8). When the annular airbag (8) is inflated, its wall is completely fitted to form an annular sealing surface. When it is deflated, its inner diameter is larger than the maximum outer diameter of the curing lamp (6) to form a passage space.

3. The hydrogel filling device for tracheal defect repair according to claim 2, characterized in that: The dynamic sealing module also includes a ring (7) disposed on the end wall of the propulsion chamber (4), and the annular airbag (8) is embedded in the ring (7).

4. The hydrogel filling device for tracheal defect repair according to claim 3, characterized in that: The two end faces of the ring (7) located on the outside of the annular airbag (8) are provided with convex rings, and the inner diameter of the convex rings is larger than the outer diameter of the curing lamp (6).

5. A hydrogel filling device for tracheal defect repair according to any one of claims 2-4, characterized in that: The annular airbag (8) is connected to an inflation / deflation tube extending to the proximal end of the fiberoptic bronchoscope (1), and the inflation / deflation tube is arranged parallel to the outside of the hydrogel-filled channel (3).

6. A hydrogel filling device for tracheal defect repair according to claim 5, characterized in that: The propulsion seat (5) is a piston structure, and the propulsion chamber (4) is connected to an inflation / deflation tube extending to the proximal end of the fiber bronchoscope (1). The inflation / deflation tube is arranged parallel to the outside of the hydrogel filling channel (3).

7. A hydrogel filling device for tracheal defect repair according to claim 6, characterized in that: Both the propulsion chamber (4) and the annular airbag (8) are equipped with flow regulating valves on their inflation and deflation pipes.

8. A hydrogel filling device for tracheal defect repair according to claim 7, characterized in that: The curing lamp (6) is a lamp group distributed in a ring array, which is fixed to the end face of the pusher seat (5) by a bendable connecting arm.

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