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Sinusal aneurysm plug special for rupture of aortic sinusal aneurysm

A technology for aortic and sinus aneurysm, applied in the field of medical devices, to achieve the effect of resisting blood flow erosion and not easy to fall off

Pending Publication Date: 2021-04-06
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem of how to construct the occlusion instrument specially used for ruptured aortic sinus aneurysm (RASA)

Method used

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  • Sinusal aneurysm plug special for rupture of aortic sinusal aneurysm
  • Sinusal aneurysm plug special for rupture of aortic sinusal aneurysm
  • Sinusal aneurysm plug special for rupture of aortic sinusal aneurysm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Trapezoidal sinus plug:

[0034] like Figure 1a-1c As shown, a special sinus plug suitable for aortic sinus aneurysm rupture includes connecting rivets 1, large disc surface 2, waist 3, small disc surface 4 and adduction rivets 5; the shape of the sinus tumor plug is a cone, and the cone The two ends of the body are respectively provided with a large disk surface 2 and a small disk surface 4; a waist 3 is provided between the large disk surface 2 and the small disk surface 4, and a connecting rivet 1 is provided at the intersection of the large disk surface 2 and the central axis of the cone, and the small disk surface 4 and the cone A retracting rivet 5 is provided at the intersection of the central axis of the body. The large disk surface 2 , the waist portion 3 and the small disk surface 4 are configured as a mesh structure woven from braided yarns, and the mesh structure is a cross-shaped mesh structure. The large disk surface 2, the waist portion 3 and the small...

Embodiment 2

[0038] Ring fence-shaped rotatable sinus plug

[0039] like Figure 2a-2c As shown, a special sinus aneurysm plug suitable for the rupture of aortic sinus aneurysm, including the bell mouth 6 structures at both ends and the hollow ring-shaped fence-like braided mesh 7 structure between the two ends of the bell-mouth 6 structures; the hollow ring-shaped fence-like braided A flow blocking film 8 is arranged inside the mesh 7 structure.

[0040] This design is in the shape of a circular fence, hollow, with two ends in the shape of a bell mouth, and the middle waist is covered with a film to block flow. It is suitable for aneurysmal, long tubular and uneven RASA. The aneurysm plug of this design can be rotated and contracted, and finally shrinks into a twisted strip, which can be easily retracted into the sheath; this embodiment has no connecting rivets, and can be used with a delivery device with jaws.

[0041] In this embodiment, a shape-memory nickel-titanium alloy is used, whi...

Embodiment 3

[0044] Mushroom sinus plug

[0045] like Figure 3a-3b As shown, a special sinus plug suitable for the rupture of an aortic sinus aneurysm comprises a closed end 9, a large disc surface 2, a waist 3 and a small disc surface 4; the shape of the sinus tumor plug is set as a cone, and the two ends of the cone are respectively set There are a large plate 2 and a small plate 4; a waist 3 is arranged between the large plate 2 and the small plate 4, and the center of the large plate 2 intersects with the central axis of the cone to be provided with a closing end 9; the large plate 2 is far away from the small plate 4. The side is provided with a convex surface formed by the closing end 9 protruding from the periphery of the large disk surface 2 . The sinus plug is made of a mesh structure woven with degradable materials; the inside of the large disk 2 and the small disk 4 is provided with a flow-blocking membrane.

[0046] The shape of this design is mushroom-shaped, which is a wov...

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Abstract

The invention relates to a sinusal aneurysm plug special for rupture of aortic sinusal aneurysm, and belongs to the technical field of medical instruments. The plug comprises a connecting rivet, a large tray surface, a waist part, a small tray surface and an adduction rivet; the sinusal aneurysm plug is in a cone shape, and a large disc face and a small disc face are arranged at the two ends of the cone respectively. A waist part is arranged between the large disc surface and the small disc surface, the connecting rivet is arranged at the intersection of the central axes of the large disc surface and the cone, and the adduction rivet is arranged at the intersection of the central axes of the small disc surface and the cone. The sinusal aneurysm plug is suitable for traditional interventional therapy and ultrasonic interventional therapy; the sinusal aneurysm plugs with different shapes can be suitable for aortic sinusal aneurysm defects with different sizes and aortic sinusal aneurysm defects with different distances from coronary artery openings and aortic valve rings.

Description

technical field [0001] The invention relates to a special sinus aneurysm plug suitable for aortic sinus aneurysm rupture, which belongs to the technical field of medical devices. Background technique [0002] Aortic sinus aneurysm rupture, also known as Valsian sinus aneurysm rupture, is mostly congenital and is a rare congenital heart disease. The disease is due to the lack of normal elastic tissue and muscle tissue in the aortic sinus wall, which is subjected to high-pressure blood flow. After the impact, a cystic tumor gradually forms and bulges outward, eventually leading to the rupture of the tumor. The disease is more male than female, and the adult incidence rate is high. After the age of 20, the disease appears suddenly and develops rapidly. When the tumor is not ruptured, there may be no clinical symptoms. Once ruptured, acute and progressive cardiac insufficiency often occurs, and the prognosis is poor. If the tumor cannot be diagnosed and treated in time, it will...

Claims

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Application Information

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IPC IPC(8): A61B17/12
CPCA61B17/12113A61B17/12172A61B17/12177A61B17/12159A61B2017/1205
Inventor 王卿馨孙保郭旭英周文兵胡金鹏陈娟蒲忠杰
Owner SHANGHAI SHAPE MEMORY ALLOY
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