An improved balloon catheter is disclosed having both the flexibility of a coaxial construction and the advantages of dual lumen construction as well. The proximal section is of relatively rigid dual lumen construction, wherein an inflation lumen and a guidewire lumen extend longitudinally through the proximal section in a generally parallel and side-by-side relationship. A distal section of the balloon catheter is coupled to the distal end of the proximal section and is of a coaxial constructio...

A removable, variable-diameter vascular filter system comprising a guidewire and a filter which can be used to capture embolic particulates during medical procedures, while allowing for continuous perfusion of blood. The removable, variable-diameter vascular filter system allows the operator to vary the diameter of the filter, so that a single device can be used to capture embolic particulates in vessels with different lumenal diameters.

Reusable, washable feminine napkins and panty liners have multiple absorbent layers encasing a fluid imperiable layer. The napkin has a side opening pocket for an extra absorbent filler pad. Both the napkin and the panty liner employ a centrally located mounting device which is not connected to the fluid imperiable layer.

A double tube sealed sampling device adapted to be incorporated into a dip tube for sampling the contents of a chemical reactor on a continuous or intermittent basis. In a preferred form, the device may be maintained in a sealed relationship to the reactor to avoid any contact with the contents of the reactor with the outside environment. In installed condition, the two tubes which are of relatively small diameter are shielded from turbulence within the reactor by the larger diameter hollow cyli...

Apparatus for facilitating balloon catheter exchange in a vascular dilatation procedure using a balloon guidewire emplaced within the vascular system of a patient, and a balloon catheter defining an inflation lumen and a guidewire lumen and being attached at its proximal end to a hub. The apparatus includes a relatively short guidewire extension attached at its proximal end to a handle portion. The handle portion defines structure cooperative with the hub for facilitating sliding movement of the...

An emboli extraction catheter and vascular filter system comprising a guidewire, a vascular filter attached near the distal end of the guidewire, and an emboli extraction catheter. The vascular filter has a smaller first diameter for insertion into the lumen of a vessel, and a second larger diameter for expanding to substantially equal the diameter of the lumen and to be placed in generally sealing relationship with the lumen. The emboli extraction catheter is a flexible catheter comprising a hu...

A balloon dilatation catheter defines an inflation lumen communicating with its balloon, and a guidewire lumen extending along the catheter. An aperture portion is defined in the catheter shaft between the guidewire lumen and the catheter exterior, the aperture portion being covered by a frangible wall that is typically thinner than the rest of the tubular catheter shaft wall. The catheter may be used in either the conventional over-the-wire technique or the "rapid exchange" technique of balloon...

A balloon dilatation catheter defines an inflation lumen communicating with its balloon, and a guidewire lumen extending along the catheter. An aperture portion is defined in the catheter shaft between the guidewire lumen and the catheter exterior, the aperture portion being covered by a frangible wall that is typically thinner than the rest of the tubular catheter shaft wall. The catheter may be used in either the conventional over-the-wire technique or the "rapid exchange" technique of balloon...

The present invention provides a method for immobilizing biomolecules on a conductive substrate to produce a biosensor.

A stent or other intraluminal medical device may be constructed utilizing multiple, individual, independent, self-expanding stent segments which are designed to interlock when constrained within a delivery sheath and uncouple upon deployment. The individual segments are releasably connected by a series of bridging elements and receptacles.