This invention relates to a new water soluble lubricant for a medical device, such as a catheter and an introducer needle. The lubricant is a silicone surfactant which is non-ionic and which is a good lubricating fluid. Preferably the silicone surfactant that is used is a block copolymer polyalkylene oxide-modified polydimethylsiloxane. Water is used as the solvent for this lubricant. The lubricat...

In a GPS navigation satellite receiver, a pseudorange step detection method integrates the pseudorange rates to predict expected changes in the pseudoranges from one measurement to the next. The pseudorange rate is directly measured as the carrier Doppler shift. The pseudorange and pseudorange rate from a last measurement from each satellite and a pseudorange rate from a new measurement are used t...

A catheter guide wire includes a strip of material formed into an elongate coil, with a central hollow having a plurality of windings. The windings include inhibiting features to inhibit relative rotation of adjacent windings. A central wire core is inserted through the hollow of the coil and welded to some of the windings to keep them from separating longitudinally. This construction allows for l...

A catheter guide wire includes an elongate tubular body about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. The elongate body includes a proximal end and a distal end, with the distal end being curved. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along the length of the body to increase its lat...

A catheter guide wire includes an elongate solid body about which a catheter may be threaded for guidance to a target location in a vasculature passageway of a body. The elongate body includes a proximal end and a distal end, with the distal end being curved. Cuts are formed either by saw-cutting, laser cutting or etching at spaced-apart locations along the length of the body to increase its later...

The method serves for controlling the power output of the turbine, through which water is led, thereby generating electricity. A proportion of the water is made to bypass the turbine and the energy of this quantity of water is used in order to create a pressure head for the turbine.

Differential receiver of direct sequence spread spectrum signals. According to the invention, the intermediate frequency stage comprises N filtering and amplifying channels in N separate bands. The amplification of a channel is adjusted so that the power levels delivered by the channels correspond to a predetermined distribution law. Application to wireless or radiocommunications.

The collision block (1) has cavities (2, 3, 4) in the flat surface, and by virtue of the tube system (6), the cavities can be evacuated for producing a vacuum in them for retention of the block against the base. The flat surface of the block is provided with a friction coating (5). The cavities are formed as parallel tracks with a rectangular cross-section. They are sealed at their ends by sealing...

The hoist device has one or more tractive lines whose free ends run through a turning block and then with their outermost part terminate suspended in a brake block, functioning as an object line for the hoist device outermost lifting object.

A method for bleaching sulphate pulp to an ISO brightness of at least 85 via the kraft process and using an acidic peroxide bleaching step (Pa) comprises the use of ozone and/or chlorine dioxide as bleaching chemicals during the peroxide bleaching step. - Preferably between the kraft cooking and (Pa) steps the pulp is treated with acid, EDTA, DTPA and/or enzyme to remove heavy metals, and with aci...

A unit switching apparatus includes first and second current units, a spare unit, and a switching unit. Each of the current units includes a communication circuit for performing communication in accordance with set operation mode data and a failure detection circuit for detecting and notifying occurrence of a failure in the communication circuit. The spare unit includes a communication circuit for...