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A left atrial appendage occlusion device and occlusion system

A technology of blocking device and blocking piece, which is applied in the field of medical devices to achieve the effects of reducing damage, simplifying surgical procedures, and reducing surgical risks

Active Publication Date: 2017-08-25
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A number of clinical trials on LAA occluders have shown that LAA occlusion is not inferior to warfarin in preventing atrial fibrillation stroke, but due to safety factors such as pericardial effusion and shedding, the US Food and Drug Administration (Food and Drug Administration) and Drug Administration, FDA) is currently only approved for clinical research

Method used

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  • A left atrial appendage occlusion device and occlusion system
  • A left atrial appendage occlusion device and occlusion system
  • A left atrial appendage occlusion device and occlusion system

Examples

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Embodiment Construction

[0032] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describe, rather than indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and in addition, "far" and "near" are relativ...

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Abstract

The invention relates to the field of medical devices and discloses a left atrial appendage blocking device, which includes a support skeleton and a flow-blocking membrane. The supporting skeleton is a hollow spherical-like body with elasticity. The flow-blocking membrane is arranged in a cap shape. It is sleeved on the proximal periphery of the support frame; the distal circumference of the support frame is provided with anchors for grasping the inner wall of the left atrial appendage; the invention also discloses a left atrial appendage blocking system, which It includes a delivery device and the left atrial appendage occlusion device described in the above technical solution. The delivery device includes a delivery sheath and a push rod. The left atrial appendage occlusion device is arranged in the delivery sheath, and one end of the push rod is provided In the delivery sheath, it is detachably connected to the fixed head end of the left atrial appendage blocking device. The invention can reduce damage to the vascular access and reduce surgical risks.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a left atrial appendage occlusion device and occlusion system for preventing embolism complications of atrial fibrillation. Background technique [0002] Atrial fibrillation (Atrial Fibrillation, AF) is one of the most common clinical arrhythmias. In addition to inducing or aggravating the risk of heart failure, it can also cause stroke and other thromboembolic events, resulting in death or disability. Oral anticoagulant drugs can significantly reduce the probability of ischemic stroke in patients with atrial fibrillation, but because their pharmacological effects are affected by many factors (such as drugs, food, etc.), frequent blood sampling is required to monitor coagulation indicators. Even within the appropriate anticoagulation intensity, it will increase the chance of intracranial hemorrhage by 2 to 5 times. Some patients have contraindications such as active blee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12
CPCA61B17/12031A61B17/12122A61B17/12145A61B2017/1205A61B17/12172A61B17/12177
Inventor 昌仁操李辉白会新崔凯赵洋李超赵申杨明
Owner SHANGHAI SHAPE MEMORY ALLOY
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