Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.

A gimbal assembly includes a flex circuit with a first end extending along a loadbeam and second end having bond pads configured to be electrically coupled to a slider. The gimbal assembly includes a metallic layer with a fixed portion fixably attached to the loadbeam and a movable portion fixably attachable to the slider. The movable portion has at least one extension arm coupled to and providing support to the second end of the flex circuit. First and second linear actuators are coupled between the fixed portion and the movable portion. The first and second linear actuators cause a rotation of the slider in response to an electric signal.

Systems and methods for a flexible dynamic loop having reduced impedance are described. The flexible dynamic loop may supply current from a preamplifier to another device, such as a hard disk drive. In one embodiment, a flexible dynamic loop comprises a flexible structure having a set of wire traces. The flexible dynamic loop may also comprise a set of impedance control structures on the flexible structure and perpendicular to a bend radius of the flexible structure, wherein the set of impedance control structures change an impedance level experienced by at least some of the set of wire traces. Some of the impedance control structures may be staggered. The flexible dynamic loop may also include a cover layer formed over the set of impedance control structures, which may be patterned with perforations. The flexible dynamic loop may also include one or more flexible rails connecting some of the impedance control structures.

A hard disk drive suspension includes a suspension tail configured to electrically connect to a read-write transducer at a distal end and extending in a proximal direction toward a tapered tip at a proximal end, where the tapered tip comprises a decreasing taper that narrows in the proximal direction. Hence, structural overlap among adjacent suspension tails in misalignment scenarios and consequent marginalized electrical connections between the suspension tail and a corresponding flexible printed circuit are inhibited. The most proximal electrical pads of the suspension tail may be configured with a different aspect ratio, or in a fewer number of lines, from other adjacent electrical pads, thereby fitting within the narrowest portion of the tapered tip.

Devices including a suspension pad shape and layout that avoids shorts caused by solder bridging during coupling of leads thereto. One embodiment includes a plurality of slider pads and a plurality of suspension pads being generally aligned with the slider pads. A conductive material electrically couples each of the suspension pads to the slider pad aligned therewith. At least one of the suspension pads is characterized as follows. The suspension pad has a proximal edge positioned closest to the associated slider pad, a distal edge positioned opposite the proximal edge, and side edges extending between the proximal and distal edges. At least a portion of the suspension pad tapers toward the proximal edge.

A disk device according to one embodiment includes a recording medium, a magnetic head, a wiring member, and a flexible printed circuit board. The magnetic head is configured to read/write information from/to the recording medium. The wiring member includes a plurality of first terminals, and a plurality of first wires that electrically connect the magnetic head to the first terminals. The flexible printed circuit board includes a surface, a plurality of second terminals located on the surface to be connected to the first terminals by means of a conductive adhesive, and a ground plane spaced apart from the second terminals in a direction along the surface.

Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.

According to one embodiment, a disk device includes a recording medium, a suspension, a magnetic head, an actuator, a circuit board, an FPC, a preamplifier, and an actuator driver. The magnetic head and the actuator are mounted on the suspension. The circuit board includes a control circuit. The FPC is connected to the suspension and the circuit board. The preamplifier is mounted on the FPC, outputs a write signal, to the magnetic head, corresponding to information to be written to the recording medium by the magnetic head, and receives, from the magnetic head, a read signal corresponding to information read from the recording medium by the magnetic head. The actuator driver is mounted apart from the preamplifier on the FPC, the actuator driver that outputs a drive signal for driving the actuator to the actuator.

A hard disk drive flexible printed circuit (FPC) includes a plurality of fingers extending from a main portion, with each finger having a first wiring layer including a first electrically conductive trace layout, a second wiring layer including a second electrically conductive trace layout, and a base film interposed between the first and second wiring layers, where the first conductive trace layout includes at least one thermally conductive protective island overlaying a respective portion of the second trace layout to provide a protective thermal barrier to the base film. Hence, maximum temperatures across various layers of the FPC laminate can be reduced, damage to the FPC prevented, and manufacturing yields improved.

In a disk drive having a flexible circuit tail that is routed within a recess in the actuator arm, a dielectric spacer is added to the top of the tail in order to space the circuit traces within the tail further away from the electrically conductive actuator arm, and to make more repeatable that spacing. The added spacing reduces electrical coupling and thus increases the bandwidth of the circuit. The spacer can be in the form of a section of the same viscoelastic material that is used elsewhere as a vibration dampener on the suspension, the viscoelastic material being adhered to the tail before the tail is inserted within the recess. Alternatively, the spacer can be a thickened region of the flexible circuit covercoat in the area where the tail will reside within the recess.