Abstract: A stent deployment device (110) is provided for deploying a stent in a lumen of a patient. The device can include a catheter (112), a first balloon (122) positioned near a distal end of the catheter and a second balloon (123) adjacent to the first balloon. Alternatively, the second balloon can be positioned over the first balloon. The device also includes an expandable stent (210) positioned over the first balloon and the second balloon. The first balloon comprises a semi-compliant material, a noncompliant material or a compliant material. Similarly, the second balloon comprises a semi-compliant material, a noncompliant material or a compliant material. The first balloon is expandable to a first diameter, while the second balloon can be expandable to a second diameter.

Abstract: An endoluminal prosthesis system for a branched body lumen comprises a branch vessel prosthesis. The branch vessel prosthesis is deployable within a branch vessel body lumen and comprises a stent having a generally tubular body portion, a flareable proximal end portion, and a coupling portion disposed intermediate the body portion and the flareable portion. The coupling portion is preferably more crush-resistant than the body portion.

Abstract: An intraluminal prosthesis is provided for strengthening a main lumen and a branch lumen in direct fluid communication with the main lumen. The prosthesis may comprise a tubular graft and a flexible stent. The tubular graft may include a flexible body having a wall with a fenestration. The flexible stent may include a body with at least one open space to encourage tissue prolapse. The flexible stent may be configured for intraluminal coupling to the fenestration of the tubular graft, so that the entire prosthesis may be assembled and anchored into a main lumen and a branch lumen with a minimally invasive procedure. The open space may encourage tissue prolapse, which may act to anchor the flexible stent to the branch lumen.

Abstract: A balloon catheter is provided to minimize curving of the balloon when the balloon is expanded with an inflation media. The balloon catheter has an elastic inner shaft that stretches longitudinally as inflation pressure in the balloon is increased. The balloon catheter may also have an inner shaft with a portion that is corrugated to allow longitudinal stretching of the inner shaft.

Abstract: A stent graft system for intraluminal deployment in an aorta and a branch vessel that includes an aorta stent graft for deployment within the aorta and defining a lumen for the passage of blood therethrough, and having a fenestration positioned and sized so as to allow blood to flow to a contiguous branch vessel. The system also includes a branch vessel prosthesis, preferably a stent graft, having a tubular portion and a flaring portion, such that, when deployed, the flaring portion is located within the lumen of the aorta stent graft and the tubular portion passes through the fenestration and into the branch vessel. A balloon expansion catheter expands the tubular portion and flare the flaring portion. The expansion of the tubular portion and the flaring of the flaring portion may occur sequentially or simultaneously.

Abstract: A medical device (110) including a catheter shaft (111) and a unitarily and continuously formed portion (108) having a varying durometer, and optionally including an expandable balloon (18, 118). One or both of the unitarily and continuously formed portion (108) and the balloon (18, 118) are made from an irradiation cross-linked or cross-linkable mixture of a polyamide elastomer and at least one additional cross-linking reactant. The polyamide elastomer can be a polyester amide, a polyether ester amide or a polyether amide, and is preferably a nylon block copolymer. The aromatic molecule can be 1,3,5 triethyl benzene; 1,2,4 triethyl benzene; and 1,3,5 triisopropyl benzene. The cross-linking reactant can be: (a) a difunctional material, (b) a trifunctional material, (c) a tetrafunctional material, or (d) an aromatic molecule containing at least two ring substituents, each of the ring substituents having labile hydrogens at a benzylic site therein.

Abstract: A coated medical device adapted for introduction into a passage or vessel of a patient is provided. The medical device is preferably an implantable balloon with a bioactive deposited or within the balloon. The balloon can further include a hydrophilic material positioned between the balloon and a bioactive material posited on the balloon.

Abstract: A branch vessel prosthesis is provided for use with an aorta stent graft defining a lumen and having a fenestration aligned with a branch vessel, including a generally helical coiled stent, preferably with a graft material affixed thereto to form a branch vessel lumen. At least one full turn at the proximal end of the helical coiled stent has a diameter larger than the diameter of the fenestration so as to retain the proximal end within the aorta stent. At least two full turns of the helical coil have a diameter smaller than the at least one full coil so as to pass through the fenestration upon deployment.

Abstract: A medical implant made from multiple layers of non-synthetic, natural tissues is provided. The medical device includes openings that extend radially through the wall of the medical implant. One advantage of the medical implant is that a synthetic support structure is not needed. As a result, problems associated with implanting a foreign material into a body may be avoided.