A method for bonding a heat shrinkable tubular member to an inner member where a section of the tubular member is first twisted and then subjected to heat and tension to cause the twisted section to sealingly bond to an inner member disposed therein. The method is particularly directed to bonding the distal end of a balloon on an angioplasty catheter to an inner member.

An anatomical model for the testing or demonstration of an intravascular device such as guidewires and dilatation catheters for angioplasty procedures. The model has a plurality of interconnecting passageways simulating the abdominal aorta and a renal artery as well as the left and right iliac and femoral arteries with one or more entry ports therein for the introduction and advancement of intravascular devices into the interconnected passageways.

This invention is a gateway for testing mental function comprising a portable structure that houses one or more mental function testers and an access control device that allows the user to enter a defined area based upon the result of the mental function test. The access control device may either directly control an exit from the gateway or it may dispense a portable indicator of the test results. The gateway may comprise one or more mental function testers that give the same or different tests....

A decorative food formed of a plurality of kinds of fluid food materials and manufactured by using a mold is provided. The decorative food has an outside shape thereof conforming to an interior surface of the mold inclusive of an opening of said mold. The decorative food has a colored pattern divided into multiple divisions extending up to a central portion of the decorative food, in a direction to extrude the food materials into the mold, the colored pattern being formed such that the multiple ...

An adaptive amplifier circuit with minimal excess noise and a linear charge-handling capacity exceeding 10.sup.9 electrons to enable high-quality imaging at long wavelength infrared backgrounds and video frame rates with enhanced dynamic range is disclosed. An integration capacitor stores a charge produced from a photodetector. An adaptive skimming circuit skims off excess charge during integration of the charge on the integration capacitor. A switched-capacitor low pass filter provides enhanced...

A display apparatus includes a supporting device for rotatably engaging a display device and a housing device and a disengaging device so that the display device may be easily and speedily attached to or detached from the housing device. A display apparatus includes supporting portions (30, 31) and supported portions (32, 33) serving as a supporting device for rotatably engaging a display device (10) and a housing device (20) and a disengaging device (40) for disengaging the engagement between t...

An improved vascular catheter having a tubular member of composite structure with a tubular substrate and a resin-impregnated fibrous covering extending over a substantial part of the length thereof. The tubular substrate which is longitudinally flexible but relatively inextendible, is preferably polyimide tubing with a lubricious coating on the inner surface thereof defining an inner lumen. The fibrous covering is preferably epoxy-impregnated aramid or polyester (Dacron) multi-filament fibers. ...

A mold and method for forming a balloon for dilatation catheters, particularly balloons with a prismlike shape with a transverse polygonal cross section when the internal pressure is at atmospheric conditions. Upon inflation to higher internal pressures, the balloon assumes a normal circular cross section. The balloon shape is particularly suitable for balloons formed of polyethylene terephthalate and the like which are not readily heat settable. Reduced deflated profiles are obtained. The mold ...

An intravascular catheter system, such as a dilatation catheter system for angioplasty procedures, which provides for the replacement of the catheter or the guidewire thereof during the procedure. The intravascular catheter has a guidewire-receiving inner lumen extending along the length thereof. 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...

A dilatation catheter is described wherein a primary perfusion port is provided adjacent the proximal end of the inflatable member having a transverse cross-sectional area which is dimensioned to provide the bulk of the perfusion flow through the catheter. The primary perfusion port is offset from the guidewire receiving lumen which extends through the catheter shaft.