Vascular closure methods and apparatuses

a technology of vascular closure and vascular valve, which is applied in the field of vascular closure methods and apparatuses, can solve the problems of high rate of post-puncture hemorrhage, large number of steps, and considerable complications, and achieve the effects of preventing intravascular preventing the migration of the device, and keeping tension on the wound
US20070060895A1Inactive Publication Date: 2007-03-15ABBOTT CARDIOVASCULAR
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
ABBOTT CARDIOVASCULAR
Publication Date
2007-03-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

A vascular closure device comprised of a sheath-delivered expandable, umbrella-like device with structural radial members with terminal and non-terminal hooks that engage the vessel wall. Unlike other vascular closure umbrella-type devices that effect closure by opening of the umbrella to cover an opening, the present invention effects closure of the aperture with closure of the umbrella. The closure can be maintained by a retainer lock that slides down the members, causing contraction, bringing the members into a compressed configuration (e.g., a parallel orientation of linear members) and the wound edges together, permitting immediate vascular closure and healing of the blood vessel. The device can be delivered and recovered by an intravascular sheath.
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Description

BACKGROUND

[0001] The present invention relates to methods and apparatuses for closing punctures and apertures in human and animal tissue and to methods and apparatuses for inserting such an apparatus into such tissue to perform such closure functions.

[0002] During angiography and related procedures, catheters are inserted through an incision or puncture in the skin and underlying tissues to access an artery or vein, typically in the groin, neck, or subclavian areas of a patient. The catheter can be inserted through a puncture in the blood vessel and guided to the desired site to perform interventional procedures such as angiography, angioplasty, plaque removal, and infusion of a therapeutic substance. After the procedure is completed and the catheter is removed from the patient, the access hole must be closed to prevent massive hemorrhage. This is conventionally achieved by applying pressure over the blood vessel manually and then by applying a pressure bandage, compressive weight...

Claims

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