Abstract: An intravascular catheter system, such as a dilatation catheter system for angioplasty procedures, which provides for the replacement of the catheter or the guidewire during the procedure. The intravascular catheter has a guidewire-receiving inner lumen extending along its length. A first guidewire port is provided in the catheter body at or near the proximal end of the catheter. A second guidewire port is provided in the catheter body at a location spaced distally from the first guidewire port and proximally from a diagnostic or therapeutic tool, such as a dilatation balloon, on a distal portion of the catheter. A third guidewire port is provided in the distal end of the catheter. The guidewire ports are in communication with the guidewire-receiving inner lumen.

Abstract: This appliance comprises metal housings which are fastened by their base being glued to a defined tooth and of which those for the incisors, canines and premolars comprise a horizontal groove for receiving the arch wire, said groove issuing in the direction of the occlusal plane and being formed in an intermediate bridge connecting the base to an anterior wall, and ties, such as elastic rings, for tying the arch wire.

Abstract: In the spectroreflectometry oxygenation measuring method and device, a light source produces a light beam having a spectral bandwidth including the wavelengths from 450 nm to 850 nm. A first optical system propagates the light beam from the light source to the fundus of a patient's eye, the light beam being reflected at least in part by the fundus of the patient's eye to produce a reflected light beam. A detector unit detects the spectral content of the reflected light beam and produces a signal indicative of this spectral content. A second optical system propagates an axial central portion of the reflected light beam along a predetermined propagation path from the fundus of the patient's eye to the detector unit. To that effect, the second optical system comprises a mirror defining an angle of 45.degree.

Abstract: Apparatus for holding and installing a plurality of orthodontic brackets on a patient's teeth includes an opaque housing having a plurality of spaced slots each adapted to receive a pliers, or tweezers, of the "reverse locking" type, where each pliers engages and supports a respective orthodontic bracket. Attached to the user engaging end, or handle, of each pliers is an opaque silicone cap which facilities gripping the pliers, maintains the pliers securely in position in the housing, and forms an airtight seal about each slot in the housing. Applied to each orthodontic bracket is a light-curable composite bonding material which is maintained in position within a respective slot in spaced relation from the housing. The bracket installer grasps a silicone cap in removing the pliers and orthodontic bracket combination from the housing and affixes the bracket to an intended tooth by means of the bonding material.

Abstract: A dental examination mirror is provided. The dental examination mirror includes an examination unit having a planar base wall and a side wall projecting upwardly and outwardly from the base wall. The side wall includes an edge remote from the base wall. A mirror wall is sealingly secured to the edge of the side wall and is substantially parallel to the base wall. The surface of the mirror wall facing away from the base wall are reflective to permit observation of regions in an intraoral cavity. At least portions of the mirror wall enable transmission of light. A light source and a heat source are disposed in the examination unit between the base wall and mirror wall. Light from the light source will be transmitted through at least portions of the mirror wall to illuminate at least portions of the intraoral cavity without shining light toward the eyes of the dentist or patient. The heat source in the examination unit prevents fogging of the mirror.