A vapor delivery needle is provided that may include any of a number of features. One feature of the energy delivery probe is that it can apply condensable vapor energy to tissue, such as a prostrate, to shrink, damage, denaturate the prostate. In some embodiments, the vapor delivery needle can be advanced a predetermined distance into the prostate with a solenoid actuation mechanism. Methods associated with use of the energy delivery probe are also covered.

An electromagnetic actuator of an electrical contact includes: a stationary portion including at least one coil generating a magnetic field centered on a longitudinal axis; at least one core concentrating magnetic flux, installed within the coil, and including a plate spreading the magnetic flux and defining an active surface perpendicular to the longitudinal axis, and at least one element returning magnetic flux; an armature translationally movable along the longitudinal axis and relative to the stationary portion between first and second positions, by a force induced by the magnetic field; and at least one device returning the armature elastically to a predetermined position of the first position or second position. The spreading plate includes at least one rib closing magnetic field lines between the spreading plate and the armature, protruding relative to the active surface on the armature side and housed on one edge of the spreading plate.

An electromagnetic drive unit for a switching device includes: a magnetic core with a first, a second, and a third magnetic path each arranged transversely with respect to a longitudinal axis of the electromagnetic drive unit and coupled to longitudinal magnetic struts at respective ends to form a magnetic frame structure; an armature movable along the longitudinal axis between a first and a second state; and a first and a second magnetic coil for moving the armature based on excitation of the first and/or the second magnetic coil. The first magnetic coil is arranged between the first and the second magnetic path and the second magnetic coil is arranged between the second and the third magnetic path with respect to the longitudinal axis. The magnetic core and the magnetic coils are arranged such that a magnetic flux that flows through the magnetic paths to move the armature is adjustable.

The invention relates to an electromagnetic actuator and a valve having such an actuator. The actuator has a first magnetic coil and a second magnetic coil, as well as at least one permanent magnet and an anchor that can be moved axially by the magnetic coils and the permanent magnet between a first and a second position, on which at least one spring device acts in the axial direction. The first and second magnetic coils as well as the first permanent magnet are disposed axially behind one another thereby, such that the first permanent magnet is disposed coaxially between the first and second magnetic coils.

A process component includes a first connection, a second connection, and an adjusting element arranged in a hollow space fluidically connecting the first connection to the second connection and that can be brought into a first position and second position in an axial direction within the hollow space. The component includes a permanent magnet, a first electrical coil, and a second electrical coil arranged in succession in the axial direction to create a simple process component whose size can be effectively scaled. The magnet, adjusting element, and a yoke form a first closed magnetic circuit in the first position and a second closed magnetic circuit in the second position. The first and second coil respectively compensate for the first circuit and the second circuit. The hollow space and adjusting element are shaped such that the valve can be penetrated by a fluid flow formed between the first and second connections.

A dual solenoid valve for a compressed fluid source may comprise a bobbin and a first solenoid coil located around the bobbin. A second solenoid coil may be located radially outward of the first solenoid coil. An insulating layer may be located between the first solenoid coil and the second solenoid coil. A plunger may be biased away from the bobbin.

[Object] To provide a coil device, which is small and can be easily attached to various apparatus without providing a lead wire and can be easily and inexpensively manufactured, and a method for manufacturing the coil device, and a bobbin for coil which is used in the coil device and the method.

[Solution] The bobbin for coil 1 according to the present invention is for winding a conductor wire configuring an electromagnetic coil, and contains a first bobbin body 2, a second bobbin body 3 disposed in series to the first bobbin body 2, and a connecting part 4 coupling the first bobbin body 2 and the second bobbin body 3 in series. A connector part 5 incorporating a prescribed number of terminal metal fittings 6 is provided on one axial end portion of the bobbin for coil 1.

Thus, since a relatively large space is not required for disposing lead wire(s) as in the prior art, the bobbin for coil is small, so that it can be inexpensively produced.

A bi-stable solenoid includes a housing, a wire coil, a permanent magnet, an armature, a pin, and a spring. The wire coil is arranged within the housing. The armature is slidably arranged within the housing and is moveable between a first armature position and a second armature position. The pin at least partially extends out of the housing and is slidably engaged by the armature. The spring is biased between the armature and the pin. When the pin encounters an intermediate position between a retracted position and an extended position due to the pin engaging an obstruction, the spring is configured to maintain a biasing force on the pin until the obstruction is removed.

A solenoid includes a core, a yoke, and a first coil. The first coil is wound around the yoke.

A solenoid and a solenoid control device, the solenoid control device including: a solenoid having a first coil, a variable resistor connected to one end of the first coil in series, and a second coil connected with the first coil in parallel; a drive device that drives the solenoid by supplying power to the dual coils; and a controller that controls the solenoid through the drive device.