A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.

A rectal medication administration device includes a tube, a balloon, a first valved port, and a second valved port. The tube includes a first lumen, a second lumen, and a plurality of holes extending from the first lumen therethrough. The balloon is proximal to the holes, is in communication with the second lumen, and is configured to be inflated to hold the tube in place within a patient's rectum. The first valved port is in communication with the first lumen and opens when connected to a first syringe or infusion set to provide medication transmission therethrough and closes when the first syringe or infusion set is withdrawn. The second valved port is in communication with the second lumen and opens when connected with a second syringe or infusion set to provide fluid to inflate the balloon and closes when the second syringe or infusion set is withdrawn.

An apparatus and methods for use are provided, where the apparatus includes: (a) a first catheter having a proximal end and a distal end, and wherein a distal portion of the first catheter includes a first one or more outlets, (b) a first tubular housing having a proximal end and a distal end, wherein the first tubular housing is coupled to the first catheter proximal to the at least one first outlet, (c) one or more pressure sensors coupled to the distal end of the first tubular housing, and (d) a second catheter having a proximal end and a distal end, wherein a distal portion of the second catheter includes a second one or more outlets, and wherein the distal end of the second catheter is configured to be positioned substantially within one of (i) the first catheter or (ii) a second tubular housing coupled to one or more of the first catheter and the first tubular housing, when the second catheter is in a first position.

An intervertebral disc surgical system has at least one optical cannula configured with a working channel and an optical channel, wherein the working channel and the optical channel are positioned parallel to one another. The working channel is configured to receive the elongated tubular member of an electrosurgical instrument and the optical channel is configured to receive an optical scope. The optical cannula has an optical cannula operative end for entering an operative field of a patient.

Embodiments disclosed herein relate to an aspiration catheter comprising a catheter body that can have a first end and a second end and an aspiration lumen extending through the catheter body. The aspiration lumen can have an aspiration opening located in a distal portion of the aspiration catheter. The catheter can have an assistive jet element extending through a wall of the aspiration lumen. The assistive jet element can have an assistive jet channel. The assistive jet element can be adaptable to draw blood through the assistive jet element from a location outside of the catheter body adjacent to the assistive jet element and into the aspiration lumen when suction is applied to the aspiration lumen and can be configured to break apart a thrombus or obstruction in the aspiration lumen.

Clot removal from a patient's vessel, such as an artery, are described using aspiration and hydraulic forces supporting the removal process. Hydraulic forces can be generated by occluding the vessel distal to the clot and delivering liquid between the clot and the occlusive device. The aspiration catheter is positioned proximal to the clot. Catheters designed to facilitate the delivery of hydraulic forces can be based on single lumen designs or dual lumen designs. The catheters may have a fixed internal wire, or in some embodiments the catheters can ride over a wire with a valve/seal positioned to restrict flow into or out from the guide lumen such that the guide lumen can further function for balloon inflation and/or for infusion of liquid.

Methods and apparatus provide therapeutic electromagnetic radiation (EMR) for inactivating infectious agents in, on or around a catheter residing in a patient's body cavity and/or for enhancing healthy cell growth. Transmitting non-ultraviolet therapeutic EMR substantially axially along an optical element in a lumen of the catheter body and/or the catheter body. Through delivery of the therapeutic EMR to particular infected areas and/or areas requiring tissue healing. The inactivation of the major sources of infection in, on, and around catheters and/or enhance healthy cell growth around catheters is accomplished by utilizing controlled relative intensity and/or treatment region specific dosing of the therapeutic EMR emitted radially from the optical element. Specific embodiments of urinary catheters and peritoneal dialysis catheters are also disclosed.

An implantable medical device for delivering therapeutic fluid to, and withdrawing cerebrospinal fluid (CSF) from, a CSF-containing space, includes a first inlet configured to be accessed by a needle of an aspiration device; a first outlet; a first fluid pathway extending from the first inlet to the first outlet; a second inlet; a second outlet; and a second fluid pathway extending from the second inlet to the second outlet. The first fluid pathway is free of a filter configured to prevent passage of a microbe.

A system for perfusing a localized site within a body includes a catheter assembly having a venous access line that is adapted to deliver perfusate to the localized site, a venous or arterial drainage line adapted to drain perfusate from the localized site, and an occlusion device adapted to prevent some or substantially all physiological blood flow between the localized site and the systemic circulation of the body during and in the course of perfusing and draining perfusate to and from the localized site. The system may include a blood circuit associated with the catheter assembly to facilitate blood conditioning for use as the perfusate, in the course of a controlled perfusion and/or drainage of untreated, treated, or inactivated treated blood to and from the localized site. A delivery machine may control the blood circuit and catheter assembly in order to both deliver perfusate to, and drain some or all perfusate from, the localized site in a manner that provides perfusate to substantially only the localized site.

A multi lumen catheter assembly. The assembly provides an expandable, low profile, fixed length sheath and catheter, with fixed infusion ports. The assembly has an expandable outer sheath that expands upon pressure activation with a fluid and the sheath allows the fluid to exit from at least one predetermined fixed location from a distal end of the catheter assembly. The catheter assembly can be used in various medical device procedures, such as a TIPS (Transjugular Intrahepatic Portosystemic Shunt) procedure, or anywhere a low profile, multi lumen, infusion catheter system is desired.