To reduce damage to surrounding tissue while fragmenting some tissue such as for example not damaging the capsular wall while removing the lens during cataract removal surgery or not damaging artery or vein walls during bypass surgery while freeing the artery or vein to be transplanted, an incision is made for the insertion of surface--discriminating, rotating, fragmenting handpiece. The surface--discriminating fragmenting handpiece fragments and permits aspiration of the tissue without damaging...

The invention features an assembly for use in a system used to drill a well. The system is capable of receiving a mixture of drilling fluid (e.g., liquid mud) and gumbo from downhole of the well. The assembly has a grating having at least one opening extending through the grating and positioned to intercept the mixture. The at least one opening is sized to block the gumbo from passing through the at least one opening and to allow the fluid to pass through the at least one opening. The assembly h...

An improved method for minimizing interferences from random noise and correlated fluctuations which obscure electrical signals converted from optical emissions. In particular, an improved method for the removal of interferences from optical emission signals during endpoint determination in dry etching processes for the fabrication of micro-electronic devices which derives information in the presence of random noise, correlated fluctuations and periodic modulations of the plasma by maximizing the...

Grasping an object, e.g., a calculus in the biliary tract, using a grasper, such as a basket, that can be opened and closed without mechanical advantage and also rotated about the device axis to make it easier to capture the object. The basket can then be closed further with mechanical advantage to crush the object.

A stain removing composition containing diperisophthalic acid and a nonionic detergent:

Sulfolane is recovered from the extract and raffinate product streams of an extraction process employing sulfolane as the solvent by contacting the extract and raffinate product streams with a solid adsorbent and regenerating the adsorbent by displacing the adsorbed solvent with extraction process feed.

To reduce damage to surrounding tissue while fragmenting some tissue such as for example not damaging the capsular wall while removing the lens during cataract removal surgery or not damaging artery or vein walls during bypass surgery while freeing the artery or vein to be transplanted, an incision is made for the insertion of surface--a handpiece tip. The tip is rotated and reciprocated ultrasonically at the same time so that tissue is fragmented by the combined motion of a fragmenting surface ...

The invention relates to a method of removing water-insoluble binder from a porous article formed from pressed particulate material, such as tantalum powder. The invention provides a method capable of removing substantially all of the binder from the article for high purity applications, such as capacitor manufacture. The method comprises contacting the article with an aqueous solution of an agent which reacts with said binder to produce a water soluble derivative thereof whereby said binder der...

To reduce damage to surrounding tissue while fragmenting some tissue such as for example not damaging the capsular wall while removing the lens during cataract removal surgery or not damaging artery or vein walls during bypass surgery while freeing the artery or vein to be transplanted, an incision is made for the insertion of surface--a handpiece tip. The tip is rotated and reciprocated ultrasonically at the same time so that tissue is fragmented by the combined motion of a fragmenting surface ...

A removal tool is operable for separating components of an assembled electrical connector used for connecting electrical conductors together. The electrical connector includes a tapered connector sleeve having a general "C" cross section with a slot defining a stop ledge and a wedge having a latching ledge which engages the stop ledge when inserted into the slot preventing removal of the wedge. The removal tool with a first block member includes outwardly projecting ears for selective insertion ...