5D bionic digital cyst windowing drainage device

Abstract

The invention discloses a 5D bionic digital cyst windowing drainage device which comprises a device body, the device body comprises a fixing device and a separation net, and a connecting piece is fixedly connected between the fixing device and the separation net; a diversion hole for guiding fluid to be discharged is formed in the isolation net, and a functional structure for optimizing a drainage path and promoting tissue repair is arranged in the isolation net. Efficient bionic sequential drainage of cyst fluid is achieved, and particularly, a low-resistance fluid channel pointing to a drainage outlet from the deep portion of a cyst cavity is constructed through the synergistic effect of the flow guide holes and the flow guide cones in the separation net. The structure simulates the liquid transport principle of natural tissue gaps, cyst fluid with different viscosities can be guided to be layered and discharged orderly, the common problems of unsmooth drainage and cyst fluid residue in traditional drainage are effectively avoided, and drainage thoroughness and efficiency are remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and in particular relates to a 5D bionic digital cyst fenestration and drainage device. Background Technology

[0002] Cysts are common pathological cystic structures in clinical practice. The core of their treatment lies in achieving adequate drainage of the cystic fluid and treating the cyst wall to prevent recurrence. Currently, commonly used treatment methods and related instruments are mainly divided into two categories: The first category is the traditional fenestration drainage technique, which involves surgically removing part of the cyst wall and relying on the natural drainage of the cystic fluid or supplementing it with a simple drainage tube. This method is direct but the drainage efficiency is unstable, and the open cyst cavity is prone to infection or ingrowth of surrounding tissue. The second category is drainage devices designed to solve the above problems, such as adding a single-layer filter or umbrella-shaped structure to the end of the drainage tube, attempting to isolate surrounding tissue while draining. These products reduce the risk of tissue ingrowth to some extent.

[0003] However, existing drainage devices still have significant technical shortcomings: First, their structures are mostly single-layer static designs, lacking detailed consideration of drainage dynamics and the cell growth microenvironment, resulting in a single drainage path and an inability to achieve efficient and sequential drainage of cyst fluid; second, while simple filter structures can block large tissues, they cannot construct a biocompatible gradient barrier, which is not conducive to controlling necessary tissue fluid exchange and guiding orderly repair; finally, existing devices have limited functions, mainly focusing on "drainage" and "physical isolation," and generally lack the ability to actively guide the subsequent repair process of the cyst wall, making it difficult to simulate the natural healing process, leading to problems such as scar healing and high recurrence rates; to solve the above problems, a 5D biomimetic digital cyst fenestration drainage device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a 5D bionic digital cyst fenestration and drainage device to solve the above-mentioned problems.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a 5D biomimetic digital cyst fenestration and drainage device, comprising a main body, which includes a fixing device and an isolation net, with a connector fixedly connected between the fixing device and the isolation net; the isolation net has drainage holes for guiding fluid outflow, and its interior is equipped with functional structures for optimizing the drainage path and promoting tissue repair; through the cooperation of the fixing device, the isolation net, and the internal functional structures, controllable drainage of cyst contents, effective isolation of the cyst wall from surrounding tissues, and biomimetic guidance of the subsequent repair process are achieved.

[0006] Preferably, a plurality of connecting blocks are fixedly provided on the upper part of the inner wall of the isolation net, and a guide cone is fixedly connected to the bottom surface of the connecting blocks.

[0007] Preferably, the isolation mesh is a multi-layer composite structure, comprising, from the outside to the inside, a coarse-pore mesh, a fine-pore mesh, and a barrier membrane.

[0008] Preferably, a spiral strip is fixedly provided on the inner wall of the barrier membrane.

[0009] Preferably, the tip of the guide cone is positioned toward the guide hole.

[0010] Preferably, the coarse-pore mesh, fine-pore mesh, and barrier membrane are tightly bonded together in the radial direction to form a composite barrier with gradient filtration characteristics.

[0011] Preferably, the connector is a flexible connecting strip with adjustable tension.

[0012] The present invention has the following beneficial effects: This invention achieves highly efficient biomimetic sequential drainage of cyst fluid. Specifically, it constructs a low-resistance fluid channel from the depths of the cyst cavity to the drainage outlet through the synergistic effect of the guide holes and the guide cones inside the isolation mesh. This structure simulates the fluid transport principle of natural interstitial spaces, guiding cyst fluid of different viscosities to be discharged in layers in an orderly manner. This effectively avoids the problems of poor drainage and cyst fluid residue commonly found in traditional drainage, significantly improving the thoroughness and efficiency of drainage. This invention constructs a dynamically adjustable, biocompatible isolation microenvironment. Specifically, it utilizes a multi-layered composite isolation network consisting of an outer coarse-pore mesh, a middle fine-pore mesh, and an inner barrier membrane, creating a dual gradient of physical pore size and biological function. The coarse-pore mesh first mechanically blocks the rapid ingrowth of large soft tissue masses; the fine-pore mesh further refines filtration, controlling the migration rate of inflammatory cells and fibroblasts; the inner barrier membrane acts as the final barrier, allowing the penetration of nutrients and growth factors while strictly controlling cell passage. This gradient design creates a dynamic and controllable repair space, achieving both effective isolation to prevent recurrence and providing a suitable biological microenvironment for tissue repair. This invention guides the directional healing process of the cyst wall, specifically through a spiral strip fixed to the inner wall of the barrier membrane, whose topological structure mimics the biomimetic characteristics of the extracellular matrix. This structure guides repair cells (such as fibroblasts) to adhere, extend, and align in a spiral direction, promoting the orderly deposition of collagen fibers. This leads to layered healing of the cyst wall, similar to normal tissue, rather than chaotic scar healing. This fundamentally reduces the risk of cyst recurrence due to poor healing and may improve local tissue function after treatment.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the isolation net structure of the present invention; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0016] The components represented by each number in the attached diagram are listed below: 1. Fixing device; 2. Connecting component; 3. Isolation net; 4. Guide hole; 5. Connecting block; 6. Guide cone; 7. Spiral strip; 8. Coarse mesh; 9. Fine mesh; 10. Barrier membrane. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0019] Please see Figures 1-4As shown, this invention is a 5D bionic digital cyst fenestration and drainage device, comprising a main body. Before surgery, high-resolution CT data of the patient's jawbone region is acquired and imported into 3D modeling software for reconstruction, accurately obtaining the 3D morphology, volume, and location of the cyst cavity, as well as the crown and root morphology of adjacent healthy teeth and the jawbone contour. Based on this digital model, engineers can perform personalized design of the device: designing a fixation device 1 and a connector 2: the fixation device 1 is typically two pre-formed metal rings whose inner surface morphology perfectly fits the crown of the selected healthy abutment tooth. This ensures maximum retention and stability after bonding, effectively resisting chewing forces and tongue thrusts in the oral cavity, preventing the device from loosening. The connector 2 is designed as a flexible and adjustable medical steel band, allowing the surgeon to fine-tune the final implantation angle and position of the isolation net during surgery according to the actual approach and space, achieving optimal placement. The fixation device 1 is fixedly connected to the isolation net 3 via the connector 2. The shape of the isolation net 3 is designed to match the contour structure (such as a cone-shaped structure) of the bone defect cavity after curettage, which can maximize the filling of the surgical cavity, reduce the ineffective cavity, and reduce the risk of hematoma formation; it fits closely to the bone wall, provides stable support, and prevents it from shaking and damaging the newly formed granulation tissue.

[0020] The complete 3D design model can be exported to a viewing app on a mobile phone or tablet, allowing surgeons to virtually wear the device and simulate the surgery before operation. This enables the early detection and resolution of potential interferences (such as premature contact with opposing teeth); allows surgeons to familiarize themselves with the operating procedures, improving surgical precision and efficiency; and facilitates seamless communication between medical professionals and engineers, ensuring the product fully meets clinical expectations.

[0021] The bands of fixation device 1 are firmly bonded to pre-selected, strong, healthy adjacent teeth using adhesive. The bands on both sides are connected by a palatal bar, forming a stable triangular frame structure. This provides absolutely reliable anchoring for the entire device, ensuring that it will not shift, rotate, or fall off during the wearing period of several weeks or even months. This is the fundamental guarantee for the continuous and effective functioning of drainage and isolation. The good stability also avoids repeated friction and irritation to the wound and oral soft tissues caused by loosening of the device, improving the patient's wearing comfort.

[0022] After sterilization, the isolation net 3 is gently placed into the bone defect cavity. Due to its unique shape, it can naturally stabilize within the cavity. Its main function is to physically maintain and shape a protected bone healing space. It can prevent the surrounding soft tissues (such as gingival mucosa) from collapsing and growing into the bone cavity too quickly, thus reserving the necessary space for the slow regeneration of bone tissue. This is the key to achieving bony healing rather than fibrous healing. Its presence itself constitutes a "barrier" that temporarily isolates the bone repair area below from the oral environment above.

[0023] The outermost layer of the isolation mesh 3, the coarse-pore mesh 8, acts as the first "fence," preventing large food residues such as rice and vegetable leaves from falling directly into the bone. The middle layer, the fine-pore mesh 9, has even smaller pores, effectively intercepting bacterial clusters and tiny food particles. The innermost barrier membrane 10 is a semi-permeable membrane with excellent biocompatibility, allowing small molecules such as tissue fluid, nutrients, and growth factors to permeate freely, but strictly preventing repair cells such as fibroblasts from prematurely and disorderly growing into the core area of ​​the bone cavity. This not only greatly reduces the risk of postoperative secondary infection but also creates a "controlled microenvironment": ensuring the exchange of substances required for bone repair while preventing messy soft tissues from taking over the space, guiding the repair towards the ideal "bone-first" direction.

[0024] In the early postoperative period, bloody secretions will be produced in the surgical cavity. The guide cone 6, fixed to the top of the inner cavity of the isolation net 3, plays a key guiding role. Its cone-shaped structure can efficiently collect and guide the fluid that seeps from the bone wall and is scattered in the cavity downwards, flowing into the inner cavity space of the isolation net 3, especially flowing through the spiral strip 7 area of ​​the inner wall of the barrier membrane 10. This achieves fluid management from surface to point, avoids the accumulation of secretions in the cavity, and significantly reduces the risk of infection and swelling caused by fluid accumulation. The position of the guide hole 4 is designed to be higher than the food plane during daily chewing, and the opening size is moderate. This makes it convenient for doctors to perform painless and precise negative pressure aspiration with a syringe, and also plays a certain role in preventing reflux during the non-cleaning period.

[0025] As the inflammatory phase subsides, the repair phase begins. The spiral topology provided by Spiral 7 at the microscale guides osteoblasts, mesenchymal stem cells, and other cells migrating from the surrounding bone wall to adhere, extend, and proliferate in an orderly manner along the spiral direction. This mimics some characteristics of the Havers system in natural bone tissue, promoting the orderly arrangement of new bone trabeculae and the directional deposition of collagen fibers. This is expected to yield regenerated bone with better mechanical properties and a structure closer to natural bone, rather than a chaotic scar callus, thus improving the quality of healing.

[0026] Post-operatively, the patient needs regular follow-up visits. The physician observes and aspirates secretions through drainage port 4. Once imaging confirms good bone regeneration in the bone defect area and that no further maintenance space is needed, the device can be removed. Removal is simple, requiring only the removal of the band adhesive.

[0027] Working principle: Fixation device 1 is anchored to the healthy abutment tooth via a band, providing a stable foundation for the entire system. Connector 2 transmits retention force to isolation mesh 3, ensuring its stable placement within the bone defect cavity to maintain healing space. Postoperative blood and tissue fluid secretions are first efficiently collected and guided downwards by the guide cone 6 at the top of the inner cavity of isolation mesh 3, flowing through the spiral strip 7 region on the inner wall of barrier membrane 10. The microscopic topology of spiral strip 7 guides the directional attachment and orderly growth of repair cells in the liquid environment. The liquid then selectively permeates and exchanges through the gradient composite mesh wall composed of coarse-pore mesh 8, fine-pore mesh 9, and barrier membrane 10, where large foreign particles are blocked while nutrients can pass through. The guide hole 4 located on the upper side wall is used to maintain the pressure balance inside and outside the cavity and to provide auxiliary intervention when necessary. Ultimately, through the synergistic effects of fixation, guidance, gradient filtration, and biomimetic guidance, the device achieves the treatment goals of controllable drainage of secretions, effective isolation of the wound area, and orderly regeneration of bone tissue.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

A 1.5D biomimetic digital cyst fenestration and drainage device, comprising a main body, the main body including a fixing device (1) and an isolation net (3), characterized in that, A connector (2) is fixedly connected between the fixing device (1) and the isolation net (3); The isolation net (3) is provided with a guide hole (4) for guiding fluid outflow, and its interior is provided with a functional structure for optimizing the drainage path and promoting tissue repair. Through the combination of the fixation device (1), the isolation net (3) and the internal functional structure, the controllable drainage of cyst contents, the effective isolation of the cyst wall from the surrounding tissues, and the biomimetic guidance of the subsequent repair process can be achieved.

2. The 5D bionic digital cyst fenestration and drainage device according to claim 1, characterized in that, Several connecting blocks (5) are fixedly provided on the upper part of the inner wall of the isolation net (3), and a guide cone (6) is fixedly connected to the bottom surface of the connecting block (5).

3. The 5D bionic digital cyst fenestration and drainage device according to claim 1, characterized in that, The isolation net (3) is a multi-layer composite structure, which includes a coarse-pore mesh (8), a fine-pore mesh (9) and a barrier membrane (10) from the outside to the inside.

4. The 5D bionic digital cyst fenestration and drainage device according to claim 3, characterized in that, The inner wall of the barrier membrane (10) is fixedly provided with a spiral strip (7).

5. The 5D bionic digital cyst fenestration and drainage device according to claim 2, characterized in that, The tip of the guide cone (6) is positioned toward the guide hole (4).

6. The 5D bionic digital cyst fenestration and drainage device according to claim 3, characterized in that, The coarse-pore mesh (8), fine-pore mesh (9), and barrier membrane (10) are closely bonded in the radial direction to form a composite barrier with gradient filtration characteristics.

7. The 5D bionic digital cyst fenestration and drainage device according to claim 1, characterized in that, The connector (2) is a flexible connecting strip with adjustable tension.

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