Abstract: A cytocompatible hydrogel includes a plurality first polymer macromers linked to a plurality of second polymer macromers different than the first polymer macromers by a plurality of ?-hydroxythio-ether linkages, and a plurality of cells encapsulated in the hydrogel.

Abstract: A circuit breaker crossbar assembly includes an elongate crossbar having a longitudinal axis, a first end and a second end, and having at least one support portion disposed therebetween. The crossbar is rotatable with respect to the longitudinal axis between a first rotational position and a second rotational position. The crossbar is coupleable to a plurality of moveable contacts of the circuit breaker. The support portion includes a first stop wall and a second stop wall defining a recess therebetween. A support structure is disposed in the recess, and comprises a support end pivotally coupled to the crossbar. The support structure has a first wall arranged to engage the first stop wall upon rotation of the crossbar toward the first rotational position, and a second wall arranged to engage the second stop wall upon rotation of the crossbar toward the second rotational position.

Abstract: A circuit breaker crossbar assembly includes an elongate crossbar having a longitudinal axis, a first end and a second end, and having at least one support portion disposed therebetween. The crossbar is rotatable with respect to the longitudinal axis between a first rotational position and a second rotational position. The crossbar is coupleable to a plurality of moveable contacts of the circuit breaker. The support portion includes a first stop wall and a second stop wall defining a recess therebetween. A support structure is disposed in the recess, and comprises a support end pivotally coupled to the crossbar. The support structure has a first wall arranged to engage the first stop wall upon rotation of the crossbar toward the first rotational position, and a second wall arranged to engage the second stop wall upon rotation of the crossbar toward the second rotational position.

Abstract: A drug-eluting medical device and method for treating a chronic total occlusion. The drug-eluting medical device is implanted into the chronic total occlusion and elutes a drug that softens or dissolves the plaque of the occlusion over a period of time. After the medical device has resided in the occlusion for an appropriate period of time such that at least a portion of the chronic total occlusion has been softened or dissolved, a guidewire can cross the occlusion and a procedure such as PTCA can be performed.

Abstract: A drug-eluting medical device and method for treating a chronic total occlusion. The drug-eluting medical device is implanted into the chronic total occlusion and elutes a drug that softens or dissolves the plaque of the occlusion over a period of time. After the medical device has resided in the occlusion for an appropriate period of time such that at least a portion of the chronic total occlusion has been softened or dissolved, a guidewire can cross the occlusion and a procedure such as PTCA can be performed.

Abstract: A low-profile, embolic protection device for collecting particulate debris in a body lumen, wherein an embolic filter is utilized that is expandable and collapsible by push-pull action. A filter first end is axially secured to an elongate inner member and a filter second end is attached to a distal tip of an outer tubular member. The filter is delivered to a treatment site inverted within a distal portion of the outer tubular member. The elongate inner member is slidable within the outer shaft, such that relative longitudinal movement between the elongate inner member and outer shaft reconfigures the filter between its inverted and everted configurations, as well as its expanded and collapsed configurations.

Abstract: A catheter for treating a vascular condition, the catheter including an elongate shaft, an inflatable occlusion balloon disposed on a distal region of the catheter and a stop member disposed on the catheter proximal the occlusion balloon. The stop member protects the occlusion balloon from damage by blocking the sliding advancement of a treatment instrument over the catheter shaft.