Integrated self-adaptive waist-softening degradable plugging device set

Abstract

The utility model relates to an integrated self-adaptation soft waist degradable occluder suit, including degradable and expandable release occluder, sheath tube, push rod and connecting silk thread, the occluder includes the middle waist part and the hollow disk connected to the two ends of the waist part, the waist part is telescopic, the push rod is hollow rod, and the connecting silk thread is connected with the sheath tube. The connecting silk thread penetrates through a disc face at one end of the plugging device, the two ends of the connecting silk thread enter from one end of the pushing rod and penetrate out from the other end of the pushing rod, the pushing rod is arranged in the sheathing canal, and the plugging device is compressed and stored in one end of the sheathing canal. And the push rod can push out and release through one end of the sheathing canal. The device has the advantages that the structural design is simple and reasonable, effective conveying of the plugging device can be ensured, the plugging device can be quickly separated from the plugging device after being released, the surgical operation is more convenient, the surgical period is shortened, and meanwhile, the device can adapt to individual differences of the oval holes and effectively seal the oval holes with different lengths.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to an integrated adaptive flexible biodegradable occluder kit. Background Technology

[0002] The treatment for congenital heart disease (including patent foramen ovale) is percutaneous (femoral vein) closure using an occluder. In clinical surgery, the occluder is one of the most important medical devices. Currently, most occluders employ a "double-disc, one-waist" structural design, and the material can be either non-biodegradable or biodegradable. Furthermore, occluders are generally fixed-size components that cannot undergo significant deformation. Because there is considerable individual variation in the length of the patent foramen ovale (PFO), with some individuals having shorter foramen ovales and others longer, existing occluders cannot adequately accommodate these individual differences. Patients with sizes outside the suitable range may require custom-made occluders, placing considerable pressure on the surgical procedure. Furthermore, for biodegradable plugs, current designs typically include an internally threaded cap at the center of one of the discs. During plug delivery, this cap connects to the externally threaded connector at the end of the push rod. This structure has the following drawbacks: since both the plug and the cap are made of biodegradable materials, there is a risk that the connection between the push rod and the cap may not be tight, and the two may detach during delivery.

[0003] Therefore, it is necessary to develop an integrated biodegradable occluder kit with fixing and releasing devices to overcome the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an integrated adaptive flexible biodegradable occluder kit, which effectively overcomes the defects of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An integrated adaptive flexible biodegradable occluder kit includes a biodegradable and expandable occluder, a sheath, a push rod, and connecting wires. The occluder includes a waist section in the middle and hollow discs connected to both ends of the waist section. The waist section is telescopic. The push rod is a hollow rod. The connecting wires pass through the discs at one end of the occluder, with both ends of the connecting wires entering through one end of the push rod and exiting through the other end. The push rod is built into the sheath. The occluder is compressed and housed inside one end of the sheath and can be released by the push rod through one end of the sheath.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the aforementioned waist section is a non-degradable component, while the aforementioned disc surface is a degradable disc surface, and each of the aforementioned disc surfaces is provided with a filter membrane.

[0009] Furthermore, the aforementioned waist section is a polyester woven fabric.

[0010] Furthermore, the aforementioned disc surface is a PDO yarn braided component.

[0011] Furthermore, the other end of the aforementioned push rod is equipped with a handle.

[0012] Furthermore, the handle is a rod-shaped component and is perpendicular to the other end of the push rod.

[0013] Furthermore, the connecting thread mentioned above is made of polyester.

[0014] Furthermore, one end of the aforementioned connecting thread is provided with a pull ring.

[0015] Furthermore, the center of one disc of the aforementioned plugging device is provided with a recessed groove that is adapted to the aforementioned push rod.

[0016] Furthermore, it also includes a sterile packaging bag, in which the aforementioned occluder, sheath, push rod, and connecting wire are encapsulated.

[0017] The beneficial effects of this utility model are: the structural design is simple and reasonable, which can ensure the effective delivery of the occluder and the rapid separation of the occluder after its release, making the surgical operation more convenient and shortening the surgical cycle. At the same time, it can adapt to individual differences in the foramen ovale and effectively close foramen ovale of different lengths. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the integrated adaptive flexible biodegradable occluder kit of this utility model;

[0019] Figure 2 This is a schematic diagram of another embodiment of the integrated adaptive flexible biodegradable occluder kit of this utility model;

[0020] Figure 3 This is a schematic diagram of another embodiment of the integrated adaptive flexible biodegradable occluder kit of this utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Occluder; 2. Sheath; 3. Push rod; 4. Connecting wire; 11. Waist; 12. Disc; 13. Filter membrane; 41. Pull ring. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] Example: Figure 1 As shown, the integrated adaptive flexible biodegradable occluder kit of this embodiment includes a biodegradable and expandable occluder 1, a sheath 2, a push rod 3, and a connecting wire 4. The occluder 1 includes a waist section 11 in the middle and hollow discs 12 connected to both ends of the waist section 11. The waist section 11 is telescopic. The push rod 3 is a hollow rod. The connecting wire 4 passes through the disc 12 at one end of the occluder 1, and both ends of the connecting wire 4 enter through one end of the push rod 3 and exit through the other end. The push rod 3 is built into the sheath 2. The occluder 1 is compressed and housed inside one end of the sheath 2 and can be released by the push rod 3 through one end of the sheath 2.

[0025] In this embodiment, the integrated adaptive flexible biodegradable occluder kit has a connecting wire 4 pre-installed inside the push rod 3 at the factory. The connecting wire 4 has already passed through the occluder 1, and both ends of the connecting wire 4 are located outside the push rod 3 at the end away from the occluder 1. The entire push rod 3 is built into the sheath 2, and the occluder 1 is compressed at one end of the sheath 2. During the procedure, the sheath 2 is inserted into the patient's heart through a pre-inserted guidewire via a minimally invasive incision. The insertion continues until one end of the sheath 2 reaches the target location. Then, the pusher 3 slowly pushes out the occluder 1 and releases it at the target location. After release, the occluder 1 is fixed in place (because the waist 11 of the occluder 1 is retractable, it can adapt to different patients and different sizes of foramen ovale, achieving a good sealing effect). Next, the connecting suture 4 is withdrawn from the body (only one end needs to be operated during withdrawal), allowing the pusher 3 to separate from the occluder 1. During the sheath 2's delivery, the connecting suture 4 and the occluder 1 remain connected, preventing separation. Overall, the structural design is simple and reasonable, ensuring effective delivery of the occluder and rapid separation after release. This makes the procedure more convenient, shortens the surgical cycle, and adapts to individual differences in foramen ovale size, effectively sealing foramen ovale of different lengths, significantly improving surgical safety.

[0026] In a preferred embodiment, the waist 11 is a non-degradable component, the disc surface 12 is a degradable disc surface, and a filter membrane 13 is provided in the disc surface 12.

[0027] In the above implementation scheme, the waist 11 of the occluder 1 is made of a non-degradable material. After the surgery, when the disc 12 degrades, the waist 11 remains in the target position and can always establish a good channel.

[0028] In this embodiment, the waist section 11 is made of polyester filament braid, which has good toughness and a certain degree of support, and can help establish a good channel. The braiding of the waist section 11 adopts the braiding process of artificial blood vessels, and the finished product has good elasticity along the length of the waist section 11, which can adapt to oval openings of different lengths.

[0029] In this embodiment, the disc surface 12 is made of PDO yarn braided material, meaning that the disc surface 12 is formed by braiding PDO yarn. During the manufacturing process, the waist 11 and the disc surface 12 can be integrated and woven together.

[0030] In this embodiment, as Figure 2 As shown, the other end of the push rod 3 is provided with a handle. The handle facilitates the application of a pushing or pulling force to the push rod 3 from outside the body, so that the occluder 1 can be pushed out of the sheath 2 for release, or pulled out of the body.

[0031] In this embodiment, the handle is a rod-shaped component and is perpendicular to the other end of the push rod 3.

[0032] In this embodiment, the connecting thread 4 is made of medical-grade polyester thread.

[0033] In this embodiment, as Figure 3 As shown, one end of the connecting wire 4 is provided with a pull ring 41. The pull ring 41 is always outside the body. When the occluder 1 is released and it is necessary to separate the push rod 3 from the occluder 1, hook the pull ring 41 and pull one end of the connecting wire 4 outward to completely pull out the connecting wire 4. After pulling out, the connection between the connecting wire 4 and the occluder 1 can be released.

[0034] It should be noted that since the plugger 1 is a braided component, the connecting wire 4 can be passed through the adjacent mesh of one disc 12 of the plugger 1.

[0035] In a preferred embodiment, the center of one disc 12 of the above-mentioned plugger 1 is provided with a concave recess that is adapted to the push rod 3.

[0036] In the above implementation scheme, the recessed design of one disc surface 12 of the occluder 1 allows the push rod 3 to embed its end into the recess when pushing the occluder 1 out of the sheath tube 2. The two are tightly connected, allowing the occluder 1 to be effectively pushed out and released. In addition, when the connecting wire 4 is pulled out, one end of the push rod 3 is embedded in the recess, so that the connecting wire 4 can be pulled out from one end of the push rod 3 without touching the tissue, thus eliminating the problem of tissue tearing or scratching that may occur during wire pulling.

[0037] In this embodiment, a sterile packaging bag is also included, in which the sealing device 1, sheath 2, push rod 3 and connecting wire 4 are packaged.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 present 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An integrated adaptive flexible biodegradable occluder kit, characterized in that: The device includes a biodegradable and expandable release occluder (1), a sheath (2), a push rod (3), and a connecting wire (4). The occluder (1) includes a waist section (11) in the middle and hollow discs (12) connected to both ends of the waist section (11). The waist section (11) is telescopic. The push rod (3) is a hollow rod. The connecting wire (4) passes through the disc (12) at one end of the occluder (1), and both ends of the connecting wire (4) enter through one end of the push rod (3) and exit through the other end. The push rod (3) is built into the sheath (2). The occluder (1) is compressed and housed inside one end of the sheath (2) and can be released by the push rod (3) through one end of the sheath (2).

2. The integrated adaptive flexible biodegradable occluder kit according to claim 1, characterized in that: The waist section (11) is a non-degradable component, the disc surface (12) is a degradable disc surface, and a filter membrane (13) is provided in the disc surface (12).

3. The integrated adaptive flexible biodegradable occluder kit according to claim 2, characterized in that: The waist section (11) is a polyester woven fabric.

4. The integrated adaptive flexible biodegradable occluder kit according to claim 2, characterized in that: The disc (12) is a PDO yarn braided piece.

5. The integrated adaptive flexible biodegradable occluder kit according to claim 2, characterized in that: The other end of the push rod (3) is provided with a handle.

6. The integrated adaptive flexible biodegradable occluder kit according to claim 5, characterized in that: The handle is a rod-shaped component and is perpendicular to the other end of the push rod (3).

7. The integrated adaptive flexible biodegradable occluder kit according to claim 2, characterized in that: The connecting thread (4) is a polyester thread.

8. The integrated adaptive flexible biodegradable occluder kit according to claim 2, characterized in that: One end of the connecting thread (4) is provided with a pull ring (41).

9. An integrated adaptive flexible biodegradable occluder kit according to any one of claims 2 to 8, characterized in that: The center of one disc (12) of the plugger (1) is provided with a recess that is adapted to the push rod (3).

10. An integrated adaptive flexible biodegradable occluder kit according to any one of claims 2 to 8, characterized in that: It also includes a sterile packaging bag, in which the occluder (1), sheath (2), push rod (3) and connecting wire (4) are encapsulated.

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