An endovascular apparatus, including an elongated catheter having an inner lumen extending therethrough; a balloon affixed to the catheter for expansion into the inner lumen of the catheter when the balloon is inflated; and a tube secured relative to the balloon, wherein the tube is configured to enable selective inflation and deflation of the balloon, and wherein an outer diameter of a portion of the catheter adjacent the balloon is substantially the same when the balloon is inflated and when the balloon is deflated.

A patient in whom blood diversion due to cerebral venous steal is present, and abolishment of the cerebral venous steal is indicated, is treated by increasing the cerebral venous pressure in the patient. This increase in cerebral venous pressure restores the collapsed cerebral vasculature, thereby increasing cerebral blood flow. The increase in cerebral venous pressure may be achieved using an occluding catheter in the superior vena cava or the internal jugular veins, using external compression of the cervical veins, or any other suitable mechanism. The occlusion may be controlled precisely during treatment, possibly as a function of cerebral blood flow, and after treatment the patient may experience a persistent effect because the cerebral vasculature is no longer collapsed.

A catheter devices/systems and methods therefrom are described herein for treating acute kidney in-jury, especially the contrast-induced acute kidney injury wherein the devices prevent the contrast dyes from entering into kidney and/or facilitate blood flow of kidney by said catheter system.

Devices and methods for occluding or promoting fluid flow through openings are disclosed. In one exemplary embodiment an occlusion device is provided having an expandable outer elongate tubular body, a guide member extending from a distal end of the outer body, and a slide tube disposed within the outer body, the proximal portions of the outer body and the slide tube being fixedly mated. The slide tube is configured to slide distally within the outer tubular body when the tubular body is expanded to form wings. A tether can be included as part of the device and it can be used to assist in positioning and locking a location of the device in an opening. Exemplary methods for delivering devices disclosed herein are also provided.

An occlusion balloon device includes a shaft comprising at least one inflation lumen and an inflatable balloon, the inflatable balloon having a plurality of independently inflatable and deflatable balloon portions and being in communication with the at least one inflation lumen. A method and a system comprising the occlusion balloon device enable assessment and treatment of a perforation in a vessel of a patient.

An occlusion apparatus comprises inner and outer sheaths and an expandable flexible tubular sleeve. The occlusion apparatus is advanced to a target site in the blood vessel. A dilator having a soft, compressible tip may be advanced through a lumen of the inner sheath to facilitate the advancement of the occlusion apparatus. The sheaths are translated relative to one another to expand the flexible tubular sleeve to a funnel shape with a distal flush portion contacting the blood vessel inner wall and a proximal tapered portion. The proximal portion is fluid permeable so that blood can pass through to apply pressure on the vessel wall through the distal portion. A capture or traction device can be advanced out of the inner sheath lumen and retracted back therein to capture thrombus. The distal portion of the device may comprise an expandable mesh braid with a memory characteristic to limit expansion.

A method of treating a vessel, such as sclerotherapy, includes moving a short balloon catheter to a position at which a compliant extra-luminal balloon is outside of the vessel at an occlusion site, and between the vessel and a non-compliant bearing surface. The vessel is occluded at the occlusion site by inflating the compliant extra-luminal balloon of the balloon catheter, and bearing an outer surface of the balloon against the vessel and the non-compliant bearing surface. The vessel is medically treated upstream from the occlusion site. The short balloon catheter includes a wire guide lumen

A catheter is provided which includes an outer catheter and an extendable inner catheter. A sealing feature is positioned between the inner catheter and the outer catheter to seal the annular gap between the two while allowing axial translation. The seal may be a compliant protrusion surrounding the inner catheter and may have a chevron-shape for facilitating axial translation. The seal may be a one-way valve configured to allow antegrade flushing but prevent retrograde flow. The seal may be squeegee-like flange on the distal tip of the outer catheter. The seal may be an expandable bulge, which may be mechanically expandable or inflatable or which may be a photosensitive or electrosensitive hydrogel. The seal may include a spring that is radially compressed upon translation or rotation of the inner catheter to transiently break the seal. Also provided is a seal for sealing between the catheter and the vasculature.

An occlusion device having a support structure and an expandable occlusion element associated with the support structure. The expandable occlusion element is formed of a self-expanding material, such as a hydrogel. A retainer may be provided to hold the expandable occlusion element with respect to the support structure of the occlusion device, within or outside the support structure, and positioned such that expansion of the expandable occlusion element occludes a lumen through the support structure and the occlusion device. Expansion of the expandable occlusion element may be reversible, or the expandable occlusion element may be releasable from the support structure.

A bleeding control device for mitigating bleeding includes an outer storage container housing, a compressed gas canister, wound blocking contents and a control element. The bleeding control device may be used to deliver variable contents to a wound at the site of injury to control the bleeding of a victim as temporary solution for mitigating the bleeding until more advanced medical care can be provided. A bleeding control device includes a canister housing, a compressed gas canister arranged within the canister housing, a tube connected to the canister housing, an inflatable balloon disposed on the tube, the inflatable balloon being fluidly connected to the compressed gas canister, and a control element configured to activate the compressed gas canister to inflate the inflatable balloon.