Vascular closure device

Patent metadata

Field	Value
Publication number	US-9687244-B2
Application number	US-201414328103-A
Country	US
Kind code	B2
Filing date	Jul 10, 2014
Priority date	Jul 10, 2013
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A vascular closure device includes a frame to which there is fitted a plurality of anchor elements, spaced radially around the frame. The closure device includes a radial compression feature, which may be a memorized shape of the frame or non-sprung condition of the frame, having a small radius. The closure device is deployed in a vessel such that the anchor elements are embedded into the vessel wall. The radial compression feature causes the frame to compress radially, as a result of which the anchor elements will pull the vessel wall inwardly, thereby closing the vessel.

First claim

The invention claimed is:

1. A method of closing or occluding a vessel, including the steps of:
fitting into the vessel a vascular closure device by means of a delivery assembly, which closure device includes: a frame of tubular form and comprising a plurality of frame elements, the frame having an open lumen formed therethrough such that the vascular closure device can be carried on an introducer assembly, the vascular closure device not incorporating a plug member disposed therein, the frame being radially contractible to a small radius configuration and radially expandable; a plurality of tissue grasping elements coupled to and extending radially outwardly from at least some of the frame elements; a radial contraction mechanism, integral with the frame; the closure device being of a type detachable from the introducer assembly; the closure device being implantable in a patient;
radially expanding the closure device in the vessel such that the tissue grasping elements embed into the vessel wall;
allowing for radial contraction of the frame with the tissue grasping elements extending radially outward from the frame, thereby to close the vessel wall; and
detaching the vascular closure device from the delivery assembly, thereby to leave the vascular closure device in the vessel in the small radius configuration, thereby to occlude the vessel.

2. The method according to claim 1 , wherein the radial contraction mechanism of the vascular closure device is a non-stretched or a memorized shape of the frame at said small radius configuration; the method including the steps of radially expanding the frame during deployment, and removing the radial expansion thereby to allow the frame to compress radially to its small radius configuration.

3. The method according to claim 1 , wherein the tubular frame is expanded by means of an inflatable balloon positioned inside the frame.

4. The method of claim 1 , wherein after the step of allowing for radial contraction, the lumen of the vascular closure device remains open.

5. A method of closing or occluding a vessel, including the steps of:
fitting into the vessel a vascular closure device by means of a delivery assembly, which closure device includes: a frame of tubular form and comprising a plurality of frame elements, the frame having an open lumen formed therethrough such that the vascular closure device can be carried on an introducer assembly, the frame being is radially contractible to a small radius configuration and radially expandable; a plurality of tissue grasping elements coupled to and extending radially outwardly and substantially perpendicularly from at least some of the frame elements; a radial contraction mechanism, integral with the frame; the closure device being of a type detachable from the introducer assembly; the closure device being implantable in a patient;
radially expanding the closure device in the vessel such that the tissue grasping elements embed into the vessel wall;
allowing for radial contraction of the frame, thereby to close the vessel wall without disposing a plug member within the vascular closure device; and
detaching the vascular closure device from the delivery assembly, thereby to leave the vascular closure device in the vessel in the small radius configuration, thereby to occlude the vessel.

6. The method of claim 5 , wherein the radial contraction mechanism of the vascular closure device is a non-stretched or a memorized shape of the frame at said small radius configuration; the method including the steps of radially expanding the frame during deployment, and removing the radial expansion thereby to allow the frame to compress radially to its small radius configuration.

7. The method of claim 5 , wherein the tubular frame is expanded by means of an inflatable balloon positioned inside the frame.

Assignees

• Cook Medical Technologies Llc

Inventors

• Elgaard Per
• Rasmussen Erik E
• Macatangay Edwin E
• Reeves Sarah E

Classifications

• A61B17/12172

  having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526) · CPC title

• A61F2002/8483

  Barbs · CPC title

• A61F2/91

  made from perforated sheets or tubes, e.g. perforated by laser cuts or etched holes · CPC title

• A61B17/12031

  complete occlusion · CPC title

• A61B2017/00526

  Methods of manufacturing · CPC title