Left atrial appendage occluder
AssigneeLifetech Scientific (Shenzhen) Co., Ltd.
InventorsBing Yang, Anning Li, Shuo Shan
Life of this patent
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Abstract
A left atrial appendage (LAA) occluder includes a sealing portion and a fixing portion connected to the sealing portion, and one or more sealed seed sources encapsulated with radioactive particles. The sealed seed sources are arranged on the sealing portion and/or the fixing portion (20) and configured for forming an annular isolation band on an inner wall of an LAA after the radioactive particles are released. The annular isolation band is configured for blocking the electrical signal conduction between the LAA and a left atrium. In the LAA occluder, the annular isolation band is formed on the inner wall of the LAA by the release of the radioactive particles in the sealed seed sources arranged on the sealing portion and/or the fixing portion.
Claims11
A left atrial appendage (LAA) occluder, comprising
- a sealing portion and a fixing portion connected to the sealing portion,
- wherein the LAA occluder further comprises one or more sealed seed sources encapsulated with radioactive particles,
- wherein the sealing portion comprises a sealing disc and a balloon having an open end, a proximal end of the sealing disc is provided with a hollow proximal connector, the balloon is located inside the sealing disc, and the open end is sleeved at a distal end of the hollow proximal connector;
- wherein the sealed seed sources are arranged on the sealing portion and/or the fixing portion and used to form an annular isolation band on an inner wall of an LAA after the radioactive particles are released, and the annular isolation band is used to block the electrical signal conduction between the LAA and a left atrium.
Dependencies are inferred from the claim text.