Fiber-reinforced medical balloon with force gathering assembly and balloon dilatation catheter

Abstract

The invention belongs to the technical field of medical instruments, and provides a fiber-reinforced medical balloon with a force gathering assembly and a balloon dilatation catheter. The fiber-reinforced medical balloon comprises a balloon body, fibers of the fiber layer are wound on the balloon body; the nick assembly is arranged on the balloon body coated with the fiber layer, and the nick assembly is exposed and fixed on the surface of the fiber layer. Compared with the prior art that the nicking assembly is not completely embedded in the fiber layer, the nicking assembly is exposed and fixed on the surface of the fiber layer, so that the overall height of the nicking assembly can be effectively improved, the effective height of the nicking is not lost, and the nicking effect is further ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of balloon dilatation catheters, and in particular to a fiber-reinforced medical balloon with a force-coating component and a balloon dilatation catheter. Background Art

[0002] Medical balloon dilatation catheters can be used in a variety of treatments. For example, during angioplasty, balloons can be used to dilate blocked blood vessels, opening vascular access, and subsequently implanting stents or medication balls to maintain long-term blood flow. Conventional balloon dilatation catheters use a cylindrical bare balloon without special reinforcements, so they may not be effective for dilating high-resistance lesions. If the lesion cannot be effectively dilated, subsequent treatment measures cannot be performed.

[0003] To address the inability of balloon dilatation catheters to effectively dilate high-resistance lesions, existing technologies typically utilize high-pressure balloons or force-coated balloons. High-pressure balloons can achieve inflation pressures exceeding 30 ATM, a significant improvement over the 14-20 ATM inflation pressures of conventional balloons. While force-coated balloons can achieve the same inflation pressures as conventional balloons, they incorporate stress-concentrating notches on the balloon surface. These notches can be triangular-section wires or cutting blades. During balloon expansion, these notches create stress concentrations on the lesion, making it easier to dissect it.

[0004] In the prior art, in order to allow a balloon dilatation catheter to have the characteristics of both a high-pressure balloon and a force-gathering balloon, the patent document CN117122797A discloses a high-pressure coated force-gathering balloon and a balloon dilatation catheter, comprising: a balloon body; a scoring member, the scoring member being arranged on the balloon body, the scoring member comprising a cylinder arranged along the axial direction of the balloon body and a coil spring sleeved on the outside of the cylinder; and a fiber layer, the fibers of the fiber layer being wound around the balloon body and the scoring member, the fibers of the fiber layer wound around the scoring member being located within the gaps of the coil spring. However, the balloon dilatation catheter in the prior art is fixed to the fiber mesh by weaving the fiber mesh into the threads of its spring. The above structure causes the bottom of the entire scoring assembly to be below the fiber mesh, which reduces the effective height of the scoring member. The scoring member can only function in the portion between the spring tip and the fiber mesh, which greatly reduces the scoring effect.

[0005] Therefore, in order to solve the above technical problems, technical personnel in this field need a new fiber-reinforced medical balloon dilatation catheter with a cohesive component, so that the balloon dilatation catheter has the advantages of both a high-pressure balloon and a cohesive balloon while ensuring the scoring effect of the scoring part. Summary of the Invention

[0006] Therefore, the present invention provides a fiber-reinforced medical balloon and balloon dilation catheter with a force-coupling component, thereby resolving the problem that balloon dilation catheters in the prior art cannot simultaneously possess the advantages of high-pressure balloons and force-coupling balloons while ensuring the effective height of the scoring element and improving the scoring effect. To solve the above technical problems, the present invention provides a fiber-reinforced medical balloon with a force-coupling component, comprising:

[0007] Balloon body;

[0008] a fiber layer, wherein fibers of the fiber layer are wound around the balloon body;

[0009] The scoring component is arranged on the balloon body covered with the fiber layer, and the scoring component is exposed and fixed on the surface of the fiber layer.

[0010] Optionally, the scoring component is a strip-shaped scoring wire or a cutting blade with a triangular cross-section.

[0011] Optionally, the end of the balloon body is provided with an outer tube connected thereto;

[0012] The end position of the notch assembly in the length direction is connected to the outer tube in a cooperative manner to form an outer tube connecting portion.

[0013] Optionally, the scoring assembly is bonded or welded to the outer tube.

[0014] Optionally, the scoring assembly is further provided with an elastic compensation structure for compensating for elastic deformation of the balloon body. The scoring assembly is a high-strength structure, thereby achieving a scoring effect. Therefore, elastic deformation of the balloon body is compensated for by the elastic compensation structure on the scoring assembly.

[0015] Optionally, the elastic compensation structure includes: an elastic sleeve arranged on the scoring assembly, and the elastic sleeve is wrapped around the scoring assembly and the outer tube.

[0016] Optionally, the elastic sleeve is wrapped around the surface of the outer tube by bonding or hot melting; and / or,

[0017] The elastic sleeve is wrapped around and fixed on the outer tube at the proximal end of the balloon body.

[0018] Optionally, the elastic compensation structure is a spring, an elastic polymer material, or a sliding limit device respectively connecting the notch assembly and the outer tube.

[0019] Optionally, the scoring assembly is fixedly connected to the end of the balloon body.

[0020] Optionally, the scoring component is inserted and fixed in the fiber layer on the surface of the balloon body to form a fiber layer connection structure fixedly connected to the end of the balloon body.

[0021] Optionally, the fiber layer is further provided with a single-lumen catheter; the single-lumen catheter forms a porous channel on the surface of the fiber layer for the scoring component to be inserted into the fiber layer.

[0022] Optionally, the scoring component passes through the fiber layer connection structure and is bonded to the surface of the balloon body.

[0023] Optionally, the scoring assembly is fastened to the end surface of the balloon body via a fixing line; and / or,

[0024] The scoring component is bonded to the end surface of the balloon body.

[0025] The fiber-reinforced medical balloon further includes: a three-part fixing mechanism for fixing the scoring assembly at a central position of the balloon body;

[0026] The three-division fixing mechanism, the outer tube connecting portion and the fiber layer connecting structure divide the scoring assembly into three parts and fix them.

[0027] Optionally, the three-division fixing mechanism is formed by winding another fixing line other than the fiber layer in the radial direction of the scoring component to fix the scoring component on the balloon body; or,

[0028] The fiber layer is provided with a single-lumen catheter, and the single-lumen catheter forms a hole-shaped channel on the surface of the fiber layer for the scoring component to be inserted into the fiber layer, so as to form the three-dividing fixing mechanism; or,

[0029] The scoring component is inserted and fixed in the fiber layer on the surface of the balloon body, and the scoring component is wrapped and fastened by the fiber mesh to form the three-part fixing mechanism.

[0030] A balloon dilatation catheter, comprising:

[0031] A fiber-reinforced medical balloon having a cohesive component; and,

[0032] The catheter body comprises an outer tube and an inner tube;

[0033] The liquid is filled into the catheter body through the connector, and then into the balloon through the catheter body, thereby realizing the expansion action of the balloon.

[0034] The technical solution of the present invention has the following advantages:

[0035] 1. The fiber-reinforced medical balloon with a force-gathering component provided by the present invention includes: a balloon body; a fiber layer, the fibers of the fiber layer are wound on the balloon body; a scoring component, which is arranged on the balloon body coated with the fiber layer, and the scoring component is exposed and fixed on the surface of the fiber layer.

[0036] In the present invention, a fiber layer is coated on the surface of the balloon body, and the scoring component is exposed and fixed on the surface of the fiber layer. The fiber mesh of the fiber layer added to the above-mentioned medical balloon and the scoring wire of the scoring component will increase the passing outer diameter of the product. The larger the passing outer diameter of the product, the more difficult it is to pass through the lesion. Compared with the prior art method of completely embedding the scoring component in the fiber layer and thus fixing the scoring component on the balloon body. Under the same increase in the passing outer diameter, the effective height of the scoring component provided by the present invention is higher, which is more conducive to cutting the lesion; under the same effective scoring height, the passing outer diameter increment of the present invention is smaller, which is more conducive to passing the lesion.

[0037] 2. The fiber-reinforced medical balloon with a force-coupling assembly provided by the present invention has an outer tube at its longitudinal end. This structure ensures that even if the assembly becomes detached from the balloon body, it remains securely connected to the outer tube. This prevents the assembly from forming fragments or foreign matter and reduces the risk of injury to the patient. If the assembly becomes detached from the balloon body, it can be smoothly retracted out of the body through the outer tube, as it remains securely connected to the outer tube.

[0038] 3. The fiber-reinforced medical balloon with a force-gathering assembly provided by the present invention also includes an elastic compensation structure on the score assembly. This elastic compensation structure can be an elastic element such as an elastic sleeve or spring. This elastic compensation structure compensates for the longitudinal and circumferential stretching of the balloon during balloon expansion, thereby ensuring a secure connection between the score assembly and the balloon and effectively preventing deformation of the score assembly during balloon expansion.

[0039] 4. The fiber-reinforced medical balloon with a force-gathering component provided by the present invention is constructed by arranging an elastic sleeve fixedly connected to the score component, and then wrapping the score component and fixing it on the surface of the outer tube through an elastic sleeve with good elastic extensibility. When the balloon expands, the length and circumferential direction of the balloon will stretch. The elastic sleeve has elastic compensation ability and can play a role of elastic compensation, ensuring the reliability of the connection between the score component and the balloon, and effectively preventing the score component from being stretched and deformed when the balloon expands. Moreover, the elastic sleeve can also play a role in fixing the score component on the outer tube, so that when the connection position between the score component and the balloon body falls off, the score component will not form fragments and foreign matter and remain in the human body.

[0040] 5. The fiber-reinforced medical balloon with a force-coating component provided by the present invention has a scoring component inserted and fixed in the fiber layer on the surface of the balloon body at the end position of the balloon body to form a fiber layer connection structure connecting the scoring component and the balloon body. In the present invention, by inserting the scoring component into the fiber mesh of the fiber layer, the scoring component can be firmly and reliably fixed to the balloon body, and the scoring component is not likely to fall off. Moreover, in the present invention, the scoring component is also fixed to the outer tube. When the connection position between the scoring component and the balloon body falls off, the problem of the scoring component forming fragments and foreign matter remaining in the human body will not occur.

[0041] 6. In the fiber-reinforced medical balloon with a force-coupling assembly provided by the present invention, a single-lumen catheter may be attached to the fiber layer by bonding or other means. The single-lumen catheter forms a porous channel on the surface of the fiber layer for inserting the scoring assembly into the fiber layer, thereby facilitating insertion of the scoring assembly into the fiber mesh of the fiber layer and securing the scoring assembly to the balloon body.

[0042] 7. In the fiber-reinforced medical balloon with a force-coupling assembly provided by the present invention, the scored assembly passes through the fiber layer connection structure and is bonded to the surface of the balloon body. Bonding the scored assembly to the surface of the balloon body further enhances the fixed connection strength between the scored assembly and the balloon body.

[0043] 8. In the fiber-reinforced medical balloon with a force-coupling assembly provided by the present invention, the scored assembly can be attached to the end surface of the balloon body via a fixing line. Alternatively, the scored assembly can be adhesively fixed to the end surface of the balloon body. This method of securing the scored assembly to the balloon body also ensures reliable fixation of the scored assembly to the balloon body.

[0044] 9. The fiber-reinforced medical balloon with a force-gathering assembly provided herein further includes a trisection fixing mechanism for securing the score assembly to the center of the balloon body. The trisection fixing mechanism, the outer tube connection portion, and the fiber layer connection structure cooperate to secure the score assembly to the balloon body and outer tube in three equal parts. This trisection fixing structure effectively ensures that the ends and center of the score assembly are securely and reliably fixed to the balloon dilatation catheter, ensuring balanced force distribution across each portion of the score assembly.

[0045] 10. The fiber-reinforced medical balloon with a force-gathering component provided by the present invention can also have a three-part fixing mechanism that is formed by wrapping another fixing line outside the fiber layer around the above-mentioned scoring component in the radial direction, thereby fixing the scoring component to the balloon body. Alternatively, the scoring component can be fixed to the balloon body by inserting and fixing it into the fiber layer on the surface of the balloon body, and then wrapping and tightening the above-mentioned scoring component through a fiber mesh. Moreover, the above-mentioned single-lumen catheter can also be provided on the fiber layer, thereby forming a porous channel for convenient insertion of the scoring component into the fiber layer. At the same time, the scoring component can also be adhesively fixed to the surface of the balloon body as needed.

[0046] 11. The present invention provides a balloon dilatation catheter comprising the aforementioned medical balloon, a catheter body, and a connector. The balloon dilatation catheter comprises a fiber-reinforced medical balloon with a cohesive component, thus possessing all the advantages of the aforementioned medical balloon. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 Schematic diagram of the connection structure of the scoring assembly provided by the present invention with the balloon body and the outer tube respectively;

[0049] Figure 2 A partially enlarged schematic diagram of the connection position between the scoring assembly and the outer tube provided by the present invention;

[0050] Figure 3 This is a schematic structural diagram of the balloon dilatation catheter provided by the present invention.

[0051] Description of reference numerals:

[0052] 1. Balloon body; 2. Fiber layer; 3. Score assembly; 4. Outer tube; 5. Outer tube connection; 6. Elastic sleeve; 7. Fiber layer connection structure; 8. Fixing mechanism; 9. Catheter body; 10. Inner tube; 11. Connector. DETAILED DESCRIPTION

[0053] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0055] Example 1

[0056] See Figure 1 , Figure 1 Schematic diagrams of the connection structures of the scoring assembly with the balloon body and the outer tube in an embodiment of the present invention are shown.

[0057] The fiber-reinforced medical balloon with a force-cohesive component provided in this embodiment includes:

[0058] Balloon body 1;

[0059] a fiber layer 2, wherein fibers of the fiber layer 2 are wound around the balloon body 1;

[0060] The scoring component 3 is a strip-shaped scoring wire with a triangular cross-section. When the balloon is expanded, the scoring component can form a stress concentration on the lesion, making it easier to cut the lesion for treatment. The scoring component 3 is arranged on the balloon body 1 coated with the fiber layer 2, and the scoring component 3 is exposed and fixed on the surface of the fiber layer 2. In order to firmly fix the scoring component 3, the end position of the scoring component 3 in the length direction is matched and connected with the outer tube 4, thereby fixing the scoring component 3 to the outer tube 4 at the end position of the balloon body 1 to form an outer tube connection portion 5. At the same time, the scoring component 3 is also fixedly connected to the end position and the middle position of the balloon body 1 respectively. Through the above structure, the scoring component 3 can be firmly and reliably fixed to the balloon body 1 and the outer tube 4, and the scoring component 3 is not easy to fall off. Moreover, in the present invention, the scoring component 3 is fixed to the balloon body 1 and the outer tube 4 at the same time. When the connection position of the scoring component 3 and the balloon body 1 falls off, the problem of the scoring component 3 forming fragments and foreign matter remaining in the human body will not occur.

[0061] In this embodiment, by Figure 1 The three-division fixing mechanism 8 shown fixes the scoring assembly 3 at the center of the balloon body 1. The three-division fixing mechanism 8, the outer tube connection portion 5, and the fiber layer connection structures 7 at both ends of the balloon body 1 work together to fix the scoring assembly 3 in three equal parts.

[0062] The specific structure of the above-mentioned three-part fixing mechanism 8 is as follows: the scoring component 3 is inserted and fixed in the fiber layer 2 on the surface of the balloon body 1, and the scoring component 3 is wrapped and tightened by the fiber mesh.

[0063] In this embodiment, by Figure 1As shown, in order to fix the scoring component 3 to the end of the balloon body 1, the scoring component 3 is inserted and fixed in the fiber layer 2 on the surface of the balloon body 1 to form a fiber layer connection structure 7 fixedly connected to the end of the balloon body 1.

[0064] At the same time, in order to facilitate the insertion of the scoring assembly into the fiber layer 2 and thus securely fix the scoring assembly 3 through the fibers of the fiber layer 2, a single-lumen catheter is also provided on the fiber layer 2; the single-lumen catheter forms a porous channel on the surface of the fiber layer 2 for inserting the scoring assembly into the fiber layer 2.

[0065] At the same time, in order to further firmly and reliably fix the scoring component 3 on the balloon body 1, the scoring component 3 passes through the fiber layer connection structure 7 and is bonded to the surface of the balloon body 1.

[0066] See Figure 2 , Figure 2 A partially enlarged schematic diagram of the connection position between the scoring assembly and the outer tube in an embodiment of the present invention is shown.

[0067] In this embodiment, the end of the balloon body 1 is provided with an outer tube 4 that is connected thereto. The end position of the scoring assembly 3 in the length direction is connected to the outer tube 4 to form an outer tube connecting portion 5.

[0068] The scoring assembly 3 is bonded to the outer tube 4. Furthermore, an elastic compensation structure for compensating for elastic deformation of the balloon body 1 is also provided on the scoring assembly 3. The elastic compensation structure comprises an elastic sleeve 6 provided on the scoring assembly 3, which is wrapped around the scoring assembly 3 and the outer tube 4 by bonding. Furthermore, the elastic sleeve 6 is wrapped and fixed to the outer tube 4 at the proximal end of the balloon body 1 to ensure the permeability of the balloon. In this embodiment, the elastic sleeve 6 is first fixed to the scoring assembly 3, and then the scoring assembly 3 is wrapped and fixed to the surface of the outer tube 4 using the elastic sleeve 6 having good elastic extensibility. When the balloon expands, the balloon will stretch in both the length and circumference. The elastic sleeve 6 has elastic compensation capability and can play an elastic compensation role, ensuring the reliability of the connection between the scoring assembly 3 and the balloon, while effectively preventing the scoring assembly from being stretched and deformed during balloon expansion. Moreover, the elastic sleeve 6 can also fix the scoring component 3 on the outer tube 4, so that when the connection position between the scoring component 3 and the balloon body 1 falls off, the scoring component 3 will not form fragments and foreign matter remaining in the human body.

[0069] Of course, this embodiment does not specifically limit the connection positions and number of the scoring component 3 and the balloon body 1. In other embodiments, the scoring component 3 is only connected to the two ends of the balloon body 1. Alternatively, only the two ends of the scoring component 3 are fixedly connected to the balloon body 1 and the outer tube 4 respectively.

[0070] Of course, this embodiment does not specifically limit whether the outer tube connection part 5, the fiber layer connection structure 7 located at both ends of the balloon body 1, and the fixing structure located in the middle of the balloon body 1 for fixing the scoring component 3 on the balloon body 1 divide the scoring component 3 into three equal parts. In other embodiments, the position where the scoring component 3 is connected to the middle of the balloon body 1 is not the central position of the balloon body 1, but can also be any position close to any end of the balloon body 1.

[0071] Of course, this embodiment does not specifically limit the specific structure of the three-part fixing mechanism 8. In other embodiments, the specific structure of the above-mentioned three-part fixing mechanism 8 can also be: another fixing line other than the fiber layer 2 is wrapped in the radial direction of the scoring component 3 to fix the scoring component 3 on the balloon body 1.

[0072] Of course, this embodiment does not specifically limit whether the scoring component 3 is inserted and fixed in the fiber layer 2 and then bonded to the balloon body 1. In other embodiments, the scoring component 3 is inserted and fixed in the fiber layer 2 and is not bonded to the above-mentioned balloon body 1.

[0073] Of course, this embodiment does not specifically limit whether the above-mentioned single-lumen catheter is provided on the fiber layer 2. In other embodiments, the scoring component 3 is directly inserted and fixed in the fiber layer 2 and bonded to the balloon body 1.

[0074] Of course, this embodiment does not specifically limit the specific method of fixing the scoring component 3 to the end of the balloon body 1. In other embodiments, the scoring component 3 is tied to the end surface of the balloon body 1 through a fixing line.

[0075] Alternatively, the scoring component 3 may also be directly bonded to the end surface of the balloon body 1 .

[0076] Alternatively, a single-lumen catheter may be provided in the fiber layer 2 , wherein the single-lumen catheter forms a porous channel on the surface of the fiber layer 2 for inserting the scoring assembly 3 into the fiber layer 2 , thereby forming the three-dividing fixing mechanism 8 .

[0077] Of course, this embodiment does not specifically limit the specific connection method between the scoring component 3 and the outer tube 4. In other embodiments, the scoring component 3 and the outer tube 4 are connected by welding.

[0078] Of course, this embodiment does not specifically limit the specific structure and connection method of the elastic compensation structure. In other embodiments, the elastic compensation structure can also be a spring, an elastic polymer material, or a sliding limit device that respectively connects the scoring component 3 and the outer tube 4.

[0079] Among them, the sliding limit device is a part connected to the outer tube with a front limit point and a rear limit point. The connection point between the scoring component 3 and the outer tube 4 can move between the above-mentioned front limit point and the rear limit point. Before the balloon expands, it is at the limit point away from the balloon, and after expansion, it moves toward the balloon and is finally restricted to the limit point close to the balloon.

[0080] Of course, this embodiment does not specifically limit the specific structure of the scoring component 3. In other embodiments, the scoring component 3 is a strip-shaped cutting blade with a triangular cross-section. When the balloon is expanded, the scoring component can form stress concentration on the lesion, making it easier to cut the lesion for treatment.

[0081] Of course, this embodiment does not specifically limit the wrapping position of the elastic sleeve 6. In other embodiments, the elastic sleeve 6 is wrapped and fixed on the outer tube 4 at the distal end of the balloon body 1.

[0082] Example 2

[0083] A balloon dilatation catheter, such as Figure 3 As shown, it includes:

[0084] like Figure 1 and Figure 2 The fiber-reinforced medical balloon having a cohesive component as shown; and,

[0085] The catheter body 9 comprises an outer tube 4 and an inner tube 10;

[0086] The liquid is filled into the catheter body 9 through the connector 11 and then into the balloon through the catheter body 9, thereby achieving the expansion of the balloon.

[0087] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A fiber-reinforced medical balloon with a force-gathering component, characterized in that: include: Balloon body (1); a fiber layer (2), wherein fibers of the fiber layer (2) are wound around the balloon body (1); The scoring component (3) is arranged on the balloon body (1) covered with the fiber layer (2), and the scoring component (3) is exposed and fixed on the surface of the fiber layer (2).

2. The fiber-reinforced medical balloon with a force-gathering component according to claim 1, characterized in that: The scoring component (3) is a strip-shaped scoring wire or a cutting blade with a triangular cross section.

3. The fiber-reinforced medical balloon with a force-gathering component according to claim 1, characterized in that: The end of the balloon body (1) is provided with an outer tube (4) that is cooperatively connected thereto; The end position of the notch assembly (3) in the length direction is matched and connected with the outer tube (4) to form an outer tube connecting portion (5).

4. The fiber-reinforced medical balloon with a force-gathering component according to claim 3, characterized in that: The notch assembly (3) is connected to the outer tube (4) by bonding or welding.

5. The fiber-reinforced medical balloon with a force-gathering component according to claim 3, characterized in that: The notch assembly (3) is also provided with an elastic compensation structure, and the elastic compensation structure is used to compensate for the elastic deformation of the balloon body (1).

6. The fiber-reinforced medical balloon with a force-gathering component according to claim 5, characterized in that: The elastic compensation structure comprises an elastic sleeve (6) arranged on the notch assembly (3), and the elastic sleeve (6) is wrapped around the notch assembly (3) and the outer tube (4).

7. The fiber-reinforced medical balloon with a force-gathering component according to claim 6, characterized in that: The elastic sleeve (6) is wrapped around the surface of the outer tube (4) by bonding or hot melting; and / or, The elastic sleeve (6) is wrapped and fixed on the outer tube (4) at the proximal end of the balloon body (1).

8. The fiber-reinforced medical balloon with a force-gathering component according to claim 5, characterized in that: The elastic compensation structure is a spring, a polymer material with elasticity, or a sliding limit device that respectively connects the notch assembly (3) and the outer tube (4).

9. The fiber-reinforced medical balloon with a force-gathering component according to claim 3, characterized in that: The scoring assembly (3) is fixedly connected to the end of the balloon body (1).

10. The fiber-reinforced medical balloon with a force-gathering component according to claim 9, characterized in that: The notch assembly (3) is inserted and fixed in the fiber layer (2) on the surface of the balloon body (1) to form a fiber layer connection structure (7) fixedly connected to the end of the balloon body (1).

11. The fiber-reinforced medical balloon with a force-gathering component according to claim 10, characterized in that: The fiber layer (2) is further provided with a single-lumen catheter; the single-lumen catheter forms a hole-shaped channel on the surface of the fiber layer (2) for the scoring component to be inserted into the fiber layer (2).

12. The fiber-reinforced medical balloon with a force-gathering component according to claim 10, characterized in that: The notched component (3) passes through the fiber layer connection structure (7) and is bonded to the surface of the balloon body (1).

13. The fiber-reinforced medical balloon with a force-gathering component according to claim 9, characterized in that: The scoring assembly (3) is tied to the end surface of the balloon body (1) via a fixing line; and / or, The scoring component (3) is bonded to the end surface of the balloon body (1).

14. The fiber-reinforced medical balloon with a force-gathering component according to claim 10, characterized in that: Also includes: a three-division fixing mechanism (8) for fixing the scoring assembly (3) at the central position of the balloon body (1); The three-part fixing mechanism (8), the outer tube connecting portion (5), and the fiber layer connecting structure (7) fix the scoring assembly (3) into three parts.

15. The fiber-reinforced medical balloon with a force-gathering component according to claim 14, characterized in that: The three-division fixing mechanism (8) is formed by winding another fixing line other than the fiber layer (2) in the radial direction of the scoring component (3) to fix the scoring component (3) on the balloon body (1); or, The fiber layer (2) is provided with a single-lumen catheter, and the single-lumen catheter forms a hole-shaped channel on the surface of the fiber layer (2) for the scoring component (3) to be inserted into the fiber layer (2), so as to form the three-part fixing mechanism (8); or, The notched component (3) is inserted and fixed in the fiber layer (2) on the surface of the balloon body (1), and the notched component (3) is wrapped and fastened by a fiber mesh to form the three-part fixing mechanism (8).

16. A balloon dilatation catheter, characterized in that: include: The fiber-reinforced medical balloon with a cohesive component according to any one of claims 1 to 15; as well as, The catheter body (9) comprises an outer tube (4) and an inner tube (10); The liquid is filled into the catheter body (9) through the connector (11), and then into the balloon through the catheter body (9), thereby achieving the expansion action of the balloon.

Images