Abstract: An atherectomy system that utilizes an anchoring balloon with a rotary debulker and a crossing balloon to remove or debulk lesions formed on the interior wall surface of a body vessel. The system may include a first balloon coupled to a first tubular member, a rotary debulker coupled to a second tubular member, a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member. Methods for operating this device are also provided.

Abstract: A crimp tool calibration system for crimping a prepared wire into a corresponding contact wire barrel includes a computer, a positioner having a memory chip storing positioner data, and a tool frame. The tool frame includes a head having a receiving port therethrough, and configured for the positioner to be removably engaged with the receiving port during a crimping operation. The tool frame also includes a plurality of crimping dies positioned around a periphery of the receiving port, an adjustment device to adjust a crimp depth, and a positioner interface coupled to the tool frame. The positioner interface includes a tool memory for storing tool data, a reader, and a transmitter, where the reader is configured to read the positioner data stored on the memory chip or the positioner, and the transmitter is configured to transmit the positioner data and the tool data to the computer.

Abstract: A crimp tool calibration system for crimping a prepared wire into a corresponding contact wire barrel includes a computer, a positioner having a memory chip storing positioner data, and a tool frame. The tool frame includes a head having a receiving port therethrough, and configured for the positioner to be removably engaged with the receiving port during a crimping operation. The tool frame also includes a plurality of crimping dies positioned around a periphery of the receiving port, an adjustment device to adjust a crimp depth, and a positioner interface coupled to the tool frame. The positioner interface includes a tool memory for storing tool data, a reader, and a transmitter, where the reader is configured to read the positioner data stored on the memory chip of the positioner, and the transmitter is configured to transmit the positioner data and the tool data to the computer.

Abstract: An atherectomy system that utilizes an anchoring balloon with a rotary debulker and a crossing balloon to remove or debulk lesions formed on the interior wall surface of a body vessel. The system may include a first balloon coupled to a first tubular member, a rotary debulker coupled to a second tubular member, a second balloon coupled to both the third tubular member and the axially moveable fourth tubular member such that the second balloon is disposed inside the third tubular member. Methods for operating this device are also provided.

Abstract: A crimp tool calibration system for crimping a prepared wire into a corresponding contact wire barrel includes a computer, a positioner having a memory chip storing positioner data, and a tool frame. The tool frame includes a head having a receiving port therethrough, and configured for the positioner to be removably engaged with the receiving port during a crimping operation. The tool frame also includes a plurality of crimping dies positioned around a periphery of the receiving port, an adjustment device to adjust a crimp depth, and a positioner interface coupled to the tool frame. The positioner interface includes a tool memory for storing tool data, a reader, and a transmitter, where the reader is configured to read the positioner data stored on the memory chip of the positioner, and the transmitter is configured to transmit the positioner data and the tool data to the computer.

Abstract: A medical device delivery system including a mechanism to concurrently move an inner member and an outer member in opposite directions and at pre-set speed ratio can be operated, for example, to reconstrain a foreshortening self-expanding stent with a known foreshortening ratio between the crimped diameter in an intraluminal catheter based delivery system and the nominal deployed diameter in the body lumen. The mechanism can include two oppositely handed lead screws that concurrently turn and two followers, each follower operatively connected to one of the two shafts (e.g., the inner and outer member).

Abstract: A surgical instrument adapted for applying a plurality of surgical fasteners to body tissue includes a frame having a proximal end and a distal end, with a handle positioned at the proximal end. The instrument also includes a cartridge housing and an anvil. The cartridge housing and anvil are relatively movable between a first spaced apart position and a second position in close approximation with one another, and the cartridge housing includes a knife adapted for cutting tissue by moving between the cartridge housing and the anvil. A firing mechanism is associated with the cartridge housing for selective actuation. The instrument also includes a tissue retention feature having an upper member and a lower member maintaining tissue between the cartridge housing and the anvil during treatment, wherein the upper and lower members respectively include channels associated with the knife for guiding it between the cartridge housing and the anvil.

Abstract: A surgical instrument is adapted for applying a plurality of surgical fasteners to body tissue. The surgical instrument includes an anvil and a cartridge housing containing a plurality of surgical fasteners. The cartridge housing and anvil are relatively movable between a first spaced apart position and a second closed position. A firing mechanism is associated with the cartridge housing for ejecting the surgical fasteners from the cartridge housing to be driven against the anvil. A lockout mechanism interacts with the cartridge housing for activation and deactivation; the lockout mechanism preventing movement of the cartridge housing to its second closed position but permitting relative reapproximation movement of the cartridge housing and anvil, whereby reapproximation provides an indicator that the instrument is not malfunctioning.

Abstract: A surgical instrument for cutting and applying a plurality of surgical fasteners in the same direction to body tissue includes a frame having a proximal end and a distal end, with a handle positioned at the proximal end and an end effector positioned at the distal end. The end effector is shaped and dimensioned for supporting a cartridge housing and an anvil. The cartridge housing and anvil are relatively movable between a first spaced apart position and a second position in close approximation with one another, and the cartridge housing includes a knife structure adapted for cutting tissue by moving between the cartridge housing and the anvil. The instrument also includes a firing mechanism associated with the end effector and the cartridge housing for selective actuation of the knife structure and surgical fasteners for movement in the same direction.