Closure device for closing a percutaneous opening in a blood vessel

Abstract

Closure systems, kits, and methods for closing percutaneous punctures or other openings in vessel walls, body cavities, or biopsy tracts are disclosed. A closure system can include an implant assembly, a delivery assembly, and an introducer sheath. The closed system may further include a valve bypass and a dilator. The implant assembly can comprise an inner member, a closure membrane and an outer member, each of which can be delivered by the delivery assembly. The inner member can extend through the puncture or opening and be placed adjacent to an internal tissue surface. The outer member can be placed adjacent to an external tissue surface. The closure membrane may have a distal end attached to the inner member, a proximal end including an opening configured to receive the outer member, and an intermediate region therebetween. When expanding from the delivery configuration to the closed configuration, the outer member can push the intermediate region of the closure membrane radially outward so that its outer surface can contact and conform to the peripheral edge of the puncture or opening.

Description

[0001] priority claim [0002] U.S. Provisional Patent Application Serial No. 62 / 114,101, entitled "IMPLANT ASSEMBLY FOR SEALING PERCUTANEOUS OPENING IN A VESSEL," filed February 10, 2015, is hereby requested priority interest, the entire contents of which are incorporated herein by reference. technical field [0003] This patent document relates to medical devices. More specifically but not limitedly, this patent document relates to closure systems, kits and methods. [0004] Background of the invention [0005] Catheterization and interventional procedures such as angioplasty and stenting are typically performed by inserting a hollow needle into a blood vessel of the vasculature through the patient's skin and any intervening tissue. A guidewire may then be passed through the lumen of the needle into the blood vessel entered through the needle. The needle can be removed and an introducer sheath, with or behind the dilator, can be advanced over the guide wire and into the ...

AI Technical Summary

Problems solved by technology

Whether the patient is hypertensive or anticoagulated, using external pressure to control bleeding has several disadvantages

For example, human hand pressure would be uncomfortable for the patient, cause excessive blood flow restriction or disruption, and consume expensive time and effort on the part of hospital staff

Other compression techniques, such as compression bandages, sandbags, and clamps, also have disadvantages, including requiring the patient to remain still for long periods of time and requiring hospital staff to monitor the patient closely to ensure the effectiveness of these techniques

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