METHODS, SYSTEMS, AND DEVICES FOR APPLYING TARGET FORCE TO A RADIAL ACCESS PUNCTURE SITE

摘要

Systems and methods for applying targeted force to a radial access puncture site to provide hemostasis and close the puncture site. The system may include a cuff for placement over a wrist, a fluid source from which an inflation fluid may be delivered into an inflatable balloon associated with the cuff during use, and an inflatable balloon attached to the cuff. The balloon is disposed over the puncture site and inflated during use. The system may include one or more features configured to focus or target the applied force to the puncture site. For example, the balloon may include varying wall thickness, with a thinner-walled portion that applies a focused pressure to the puncture site, two balloons where one applies focused force, or an outer sheath with a hole placed over the balloon so that a portion of the balloon protrudes through the hole and applies focused force.

主权项

1. A device for applying targeted force to a radial access puncture site, the device comprising:
a cuff for placement over a wrist of a patient; an inflatable balloon structure attached to the cuff and disposed over the radial access puncture site during use, wherein the system includes one or more features that provide for targeted application of force to the puncture site, selected from the group consisting of:
(i) wherein the inflatable balloon structure includes a balloon having a varying wall thickness so as to include a relatively thicker wall portion and a relatively thinner wall portion so that the thinner wall portion extends further from the cuff than the thicker wall portion under fluid pressure from an inflation fluid provided from a fluid source, the thinner wall portion being positioned over the radial access puncture site, such that the extended thinner wall portion of the balloon applies a focused pressure to the radial access puncture site;(ii) an outer sheath positionable over the inflatable balloon structure during use, the outer sheath including a hole into which a portion of the inflated balloon structure is received, the portion of the inflated balloon structure protruding through the hole of the sheath during use such that the protruding portion of the inflated balloon structure applies a focused pressure to the radial access puncture site during use; and(iii) the inflatable balloon structure including a first relatively smaller balloon disposed within a second relatively larger balloon, the first balloon being disposed over the radial access puncture site and extending beyond an outer surface of the second balloon during use, such that the first balloon applies a focused pressure to the radial access puncture site during use that is greater than pressure applied by the second balloon to areas surrounding the puncture site.