A dilatation catheter includes a high-pressure balloon component comprising an inner balloon and an outer balloon. An interior of the inner balloon is in fluid communication with a lumen of the catheter for receiving inflation fluid therefrom. The outer balloon defines a separate interior within which the inner balloon is disposed. The outer balloon has a hole in a wall thereof for venting the interior of the outer balloon to ambient environment. Proximal necks of the inner and outer balloons are bonded to an outer shaft of the catheter and distal necks of the inner and outer balloons are bonded to an inner shaft of the catheter. In accordance with embodiments hereof, the interior of the outer balloon is not in fluid communication with the interior of the inner balloon, the lumen of the catheter or any other source of fluid from the catheter.

A device for emptying stool from the rectum of a patient by means of a shaft body which is introduced into the bowel via the anus and is able to buckle or fold axially and radially, and which is provided with a dumbbell- or hourglass-shaped balloon body for assuring the transanal positioning of the device. The invention is further characterized by the special design of and choice of material for the shaft body and the balloon envelope and by the specific positioning of the balloon body on the shaft body, wherein the axial deflection of the free forward end of the shaft body is limited or an uncontrolled deflection of the shaft is prevented, and the probability of perforation of the bowel wall under the effect of force acting on the shaft body from an axial direction is therefore decisively reduced by the intestinal tube described according to the invention.

An anchoring mechanism and method for anchoring a device within a biological conduit include an expandable element configured for retaining the device at a desired angle relative to a central axis of the biological conduit. A steering mechanism is preferably provided for orienting the device prior to operation of the anchoring mechanism. The anchoring mechanism and method are employed in drug delivery devices, brachytherapy devices or for anchoring a catheter or sheath to provide a working channel for reliable guidance of a wide range of tools to a target location within the body.

Everting balloon systems and methods for using the same are disclosed herein. The systems can be configured to access and dilate body lumen and cavities. For example, the systems can be used to dilate the cervix and access the uterine cavity. The systems can also be used to occlude the cervix. The systems can also be used to occlude the urethra.

A system for treatment target tissue comprises an ablation device and an energy delivery unit. The ablation device comprises an elongate tube with an expandable treatment element. The system delivers a thermal dose of energy to treat the target tissue. Methods of treating target tissue are also provided.

Systems and methods for treating a blood clot positioned within a blood vessel are disclosed. In one embodiment, a balloon member is positioned on a distal end region of a catheter and an ultrasound emitting element is positioned within the balloon member and arranged for actively emitting ultrasound. In some exemplary embodiments, the disclosure provides a multi-wall balloon member and a multi-lumen catheter with at least one and/or all cavities of the balloon member arranged for heat transfer with the ultrasound emitting element. The disclosure also provides catheter arrangements with an ultrasound emitting element arranged to heat tissue adjacent to the balloon member. Additionally, in some embodiments, at least one and/or all walls of the balloon member have apertures arranged to release a therapeutic agent such as a thrombolytic drug.

A stoma dilation device that includes a tubular support defining a continuous pathway through the device; an inflatable dilation balloon located on the tubular support, the inflatable dilation balloon including a dilation region forming a first portion of the device and a retention region forming a second portion of the device; and a balloon inflation lumen. The retention region of the balloon is configured to have a diameter upon full, unrestrained inflation that is greater than the diameter of the dilation region.

A medical device is disclosed. The medical device may include an elongate member having a proximal end and a distal end an expandable end effector assembly extending distally from the distal end of the elongate member. The end effector assembly may include a plurality of end effector units each having an injector for simultaneously delivering material into tissue.

Everting balloon systems and methods for using the same are disclosed herein. The systems can be configured to access and dilate body lumen and cavities. For example, the systems can be used to dilate the cervix and access the uterine cavity. The systems can also be used to occlude the cervix. The systems can also be used to occlude the urethra.

A clot capture catheter comprises an elongate tubular shaft having a proximal end, a distal end and an inflatable expansile member at the distal end. The expansile member is inflatable from a collapsed delivery configuration to an expanded configuration. In the expanded configuration, the expansile member extends to define a funnel shape having an enlarged distal clot entry mouth at the distal-most end of the catheter. In the expanded configuration, the expansile member may extend distally beyond the distalmost tip of the shaft. The expansile member may be integral with the distal tip of the catheter shaft.