Cardiovascular abnormal channel plugging device

Abstract

The utility model discloses a cardiovascular abnormal channel plugging device, which relates to a plugging device and comprises a body integrally formed by nickel-titanium alloy, and the body is divided into an upper umbrella body, a waist binding part and a lower umbrella body according to the structure. A nickel-titanium memory alloy outer net cover arranged on the outer side of the girdling part in a sleeving mode is arranged between the upper umbrella body and the lower umbrella body. The upper umbrella body is divided into a lip web periphery and an upper protruding part according to the structure, and the top of the upper protruding part protrudes towards the interior of the upper umbrella body in the unfolded state to form a funnel cone net part. The umbrella is simple in structure and reasonable in design, when the upper umbrella body and the lower umbrella body are unfolded, the nickel-titanium memory alloy outer net cover arranged on the girdling portion is in a deformation state when the upper umbrella body and the lower umbrella body are in an unfolded state, and the unfolded state is locked in the mode that the top of the protruding portion protrudes towards the interior of the upper umbrella body to form the funnel cone net portion. Therefore, plugging is formed.

Description

Technical Field

[0001] The utility model relates to an occluder, in particular to an abnormal cardiovascular channel occluder. Background Art

[0002] An occluder for abnormal cardiovascular channels is used when, during heart surgery, there is a sudden abnormal blood supply to the heart's atrial or ventricular channels. At this time, occlusion is required to avoid unexpected situations caused by continuous blood supply.

[0003] In conjunction with the publication (announcement) number: CN211270882U, the publication (announcement) date: 2020-08-18, an anti-extrusion occluder for treating congenital heart disease is disclosed, which relates to the technical field of occluders, including an occluder body, a thin film is provided on one side of the occluder body, a mushroom-shaped alloy layer is provided on the top of the thin film, an upper umbrella is provided on the top of the mushroom-shaped alloy layer, an upper connecting tube is provided on the top of the upper umbrella, a lower umbrella is provided on the bottom of the occluder body, a lower connecting tube is provided on the bottom of the lower umbrella, a support frame is provided inside the lower umbrella, the material of the occluder body is a superelastic nickel-titanium alloy wire braided, arranged into a mesh according to a certain braiding method, the thin film is made of a polymer biofilm, and the polymer biofilm is composed of a polymer matrix or a water pipe. The problem that the occluder is sometimes squeezed when the patient uses it, resulting in a certain period of blockage, which may cause shock or suffocation of the patient in severe cases.

[0004] In the prior art including the above patents, because the blood pressure in the heart is extremely high, the occluder is fixed by a clamping method. However, due to structural limitations, when the internal pressure is too high, displacement may occur. Utility Model Content

[0005] The utility model aims to provide a cardiovascular abnormal channel occluder to solve the above problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cardiovascular abnormal channel occluder, comprising a body integrally formed of nickel-titanium alloy, wherein the body is divided into an upper umbrella body, a waist portion and a lower umbrella body according to the structure;

[0007] A nickel-titanium memory alloy outer mesh cover is provided between the upper parachute body and the lower parachute body and is sleeved on the outside of the waist portion;

[0008] The upper parachute body is divided into a lip web periphery and an upper raised portion according to the structure, and the top of the upper raised portion protrudes toward the inside of the upper parachute body in an expanded state to form a funnel cone net portion.

[0009] Preferably, the side wall of the nickel-titanium memory alloy outer mesh cover is a concave structure.

[0010] Preferably, a net mouth seal is provided at the top of the funnel cone net portion.

[0011] Preferably, the lower parachute body is a drum-shaped structure.

[0012] Preferably, a lower net opening sealing tube is provided at the bottom of the lower parachute body.

[0013] Preferably, a film with an arc-shaped structure is arranged inside the periphery of the lip web.

[0014] Preferably, the lower net bundle mouth sealing tube and the upper net bundle mouth sealing tube are both polytetrafluoroethylene parts.

[0015] Preferably, the maximum diameter of the outer periphery of the lip web is greater than the maximum diameter of the inner diameter of the lower parachute body.

[0016] Preferably, the maximum diameter of the film is greater than the maximum inner diameter of the lower parachute body.

[0017] Preferably, the maximum diameter of the nickel-titanium memory alloy outer mesh cover is smaller than the maximum inner diameters of the upper parachute body and the lower parachute body.

[0018] In the above technical scheme, the utility model provides a cardiovascular abnormal channel occluder, which has the following beneficial effects: the main body is divided into an upper umbrella body, a waist portion and a lower umbrella body, and the top of the upper raised portion is pulled toward the inside of the upper umbrella body to form a funnel cone mesh portion, so that the upper umbrella body and the lower umbrella body are unfolded, and at the same time, the nickel-titanium memory alloy outer mesh cover arranged at the waist portion is in a deformed state when the upper umbrella body and the lower umbrella body are in the unfolded state, thereby applying a reverse force to the upper umbrella body and the lower umbrella body, and supporting the channel at the funnel cone mesh portion, and then the upper umbrella body and the lower umbrella body are stuck at both ends of the channel, thereby achieving occlusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 The overall structural diagram provided for the embodiment of the utility model;

[0021] Figure 2 A schematic diagram of an explosion structure provided for an embodiment of the utility model.

[0022] Description of reference numerals:

[0023] 1. Main body; 2. Upper parachute body; 21. Periphery of lip web; 22. Upper raised part; 23. Funnel cone net part; 231. Upper net mouth seal; 3. Waist part; 4. Lower parachute body; 41. Lower net mouth seal tube; 5. Nickel-titanium memory alloy outer net cover; 6. Film; 7. Steel wire. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] like Figure 1-2 As shown, a cardiovascular abnormal channel occluder comprises a body 1 integrally formed of nickel-titanium alloy, and the body 1 is divided into an upper umbrella body 2, a waist portion 3 and a lower umbrella body 4 according to the structure;

[0026] A nickel-titanium memory alloy outer mesh cover 5 is provided between the upper parachute body 2 and the lower parachute body 4 and is sleeved on the outside of the waist portion 3;

[0027] The upper parachute body 2 is divided into a lip web periphery 21 and an upper raised portion 22 according to the structure, and in the expanded state, the top of the upper raised portion 22 protrudes toward the inside of the upper parachute body 2 to form a funnel cone mesh portion 23.

[0028] Combination Figure 1 It can be seen that the side wall of the nickel-titanium memory alloy outer mesh cover 5 in the above embodiment is a concave structure, and the concave structure is an arc structure.

[0029] A film 6 with an arc structure is arranged inside the periphery 21 of the lip web.

[0030] In the embodiment:

[0031] The maximum diameter of the periphery 21 of the lip web is greater than the maximum diameter of the inner diameter of the lower parachute body 4 .

[0032] The maximum diameter of the film 6 is greater than the maximum inner diameter of the lower parachute body 4 .

[0033] The maximum diameter of the nickel-titanium memory alloy outer mesh cover 5 is smaller than the maximum inner diameters of the upper parachute body 2 and the lower parachute body 4 .

[0034] The lower parachute body 4 is a drum-shaped structure.

[0035] The specific size specifications are not described in detail. The above technology divides the main body 1 into an upper umbrella body 2, a waist portion 3 and a lower umbrella body 4. The upper umbrella body 2 and the lower umbrella body 4 are unfolded by pulling the top of the upper raised portion 22 toward the inside of the upper umbrella body 2 to form a funnel cone mesh portion 23. At the same time, the nickel-titanium memory alloy outer mesh cover 5 arranged at the waist portion 3 is in a deformed state when the upper umbrella body 2 and the lower umbrella body 4 are in the unfolded state, thereby applying a reverse force to the upper umbrella body 2 and the lower umbrella body 4, and supporting the channel at the funnel cone mesh portion 23, and then the upper umbrella body 2 and the lower umbrella body 4 are stuck at both ends of the channel, thereby achieving blocking.

[0036] As an embodiment further provided by the utility model, the top of the funnel cone net part 23 is provided with an upper net tie mouth seal 231. The bottom of the lower umbrella body 4 is provided with a lower net tie mouth seal tube 41. The lower net tie mouth seal tube 41 and the upper net tie mouth seal 231 are both polytetrafluoroethylene parts.

[0037] In the embodiment, the steel wire 7 is fixed on the upper net tie mouth seal 231, and then passes through the lower net tie mouth seal tube 41. When the body 1 needs to be opened, the lower net tie mouth seal tube 41 is limited, and then the steel wire 7 is pulled, so that the inner part of the upper umbrella body 2 protrudes to form a funnel cone net part 23.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cardiovascular abnormal channel occluder, characterized in that: It comprises a main body (1) integrally formed from a nickel-titanium alloy, wherein the main body (1) is structurally divided into an upper parachute body (2), a waist portion (3) and a lower parachute body (4); A nickel-titanium memory alloy outer mesh cover (5) is provided between the upper parachute body (2) and the lower parachute body (4) and is sleeved on the outside of the waist portion (3); The upper parachute body (2) is structurally divided into a lip web periphery (21) and an upper raised portion (22), and in the expanded state, the top of the upper raised portion (22) protrudes toward the interior of the upper parachute body (2) to form a funnel cone mesh portion (23).

2. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: The side wall of the nickel-titanium memory alloy outer mesh cover (5) is a concave structure.

3. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: The top end of the funnel cone mesh portion (23) is provided with a mesh opening seal (231).

4. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: The lower parachute body (4) is a drum-shaped structure.

5. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: A lower net-bundle-mouth sealing tube (41) is provided at the bottom of the lower parachute body (4).

6. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: A film (6) with an arc structure is arranged inside the periphery (21) of the lip web.

7. The abnormal cardiovascular channel occluder according to claim 5, characterized in that: The lower net bundle opening sealing tube (41) and the upper net bundle opening sealing (231) are both made of polytetrafluoroethylene.

8. The abnormal cardiovascular channel occluder according to claim 1, characterized in that: The maximum diameter of the periphery of the lip web (21) is greater than the maximum diameter of the inner diameter of the lower parachute body (4).

9. The abnormal cardiovascular channel occluder according to claim 6, characterized in that: The maximum diameter of the film (6) is greater than the maximum inner diameter of the lower parachute body (4).

10. The abnormal cardiovascular channel occluder according to claim 6, characterized in that: The maximum diameter of the nickel-titanium memory alloy outer mesh cover (5) is smaller than the maximum inner diameters of the upper parachute body (2) and the lower parachute body (4).

Images