Abstract: A device and method for treating a patient with total or near total occlusion is provided. The device can include a support catheter for an occlusion crossing procedure. The support catheter can include an elongate body that extends between a proximal end and a distal end. The elongate body can have a lumen for receiving and, in some cases, supporting a guidewire. The support catheter can include a crossing tip disposed on a distal portion of the support catheter. The crossing tip can have a ring structure fixedly attached to the elongate body. The crossing tip can comprise a plurality of teeth disposed on a distal-facing surface of the crossing tip. The plurality of teeth have rounded and smooth edges adapted for abrading the occlusion.

Abstract: A device and method for treating a patient with total or near total occlusion is provided. The device can include a support catheter for an occlusion crossing procedure. The support catheter can include an elongate body that extends between a proximal end and a distal end. The elongate body can have a lumen for receiving and, in some cases, supporting a guidewire. The support catheter can include a crossing tip disposed on a distal portion of the support catheter. The crossing tip can have a ring structure fixedly attached to the elongate body. The crossing tip can comprise a plurality of teeth disposed on a distal-facing surface of the crossing tip. The plurality of teeth have rounded and smooth edges adapted for abrading the occlusion.

Abstract: A catheter device is provided that has a first end and a second end. The first end has a first rigid ring disposed thereon. The first rigid ring has an occlusion engaging feature disposed at a free end thereof. The second end has a second rigid ring disposed thereon. The second rigid ring has an occlusion engaging feature disposed at a free end thereof An elongate body extends between the first end and the second end. The elongate body has a lumen extending therethrough. A handle is configured such that a body thereof can be removeably coupled with the elongate body at a first position adjacent to the first end. The handle is configured such that the body thereof can be removeably coupled with the elongate body at a second position adjacent to the second end.

Abstract: A system is provided for crossing an occlusion within a blood vessel or cylindrical body cavity. The system includes a guide catheter and a catheter device. The guide catheter comprises a proximal portion to be disposed outside a patient and a distal portion to be disposed inside the patient adjacent to an occlusion. The system has an expandable member disposed adjacent to a distal end thereof. The expandable member can be coupled with the guide catheter or the catheter device, or an expandable member can be coupled with each of the guide catheter and the catheter device. The catheter device, which can be configured for treating an occlusion, includes a proximal portion, a distal portion, or an elongate body extending between the proximal and distal portions.

Abstract: An endoluminal prosthesis (10) comprises a radially expandable tubular segment (12) having a first end (32), a second end (34), a lumen interconnecting the first end (32) and the second end (34). A connection portion (52) defines an opening in the tubular segment (12) in fluid communication with the lumen. The connection portion (52) includes a converging portion (54), an annular diverging portion (56) and an annular neck portion (58) interconnecting the converging portion (52) and the diverging portion (56).