Abstract:
A system and method for distributing a reference voltage in a system such as an integrated circuit wherein a master reference voltage is distributed via a differential pair of conductors Local reference voltage generators produce local reference voltages proportional to the master reference voltage, but referred to local ground and/or a local power supply voltage.
Abstract:
A clot removal device and method may employ a shaft and a clot engagement element on an end of the shaft. The clot engagement element and the shaft may be configured for deployment in a blood vessel. The clot removal device may also include a stabilizer configured to at least partially surround the shaft and to maintain a portion of the shaft in a non-contacting relationship with the blood vessel wall.
Abstract:
A clot removal device and method may employ a shaft and a clot engagement element on an end of the shaft. The clot engagement element and the shaft may be configured for deployment in a blood vessel. The clot removal device may also include a stabilizer configured to at least partially surround the shaft and to maintain a portion of the shaft in a non-contacting relationship with the blood vessel wall.
Abstract:
A system and method for compensation of offset voltage in a digital differential input buffer driven by a terminated transmission line. Offset compensation currents are injected at the output of the first stage of the input buffer, which has a higher impedance than the terminated transmission line at the input of the buffer. The compensation current is determined by a network of MOS transistors, which saves die space compared to resistors. A pair of voltage multiplexers provides for compensation currents to correct offsets of either polarity. Offset correction currents are determined anew each time the system is powered up, compensating for component aging. The offset correction can also be performed while the input buffer is operating, during periods when the input is quiescent, and/or by adjusting the offset correction according to the duty cycle of the detected input.
Abstract:
A treatment device (500) is provided including a shaft (507), an expandable member, a first elongated control member (508) and a second elongated control member (502). The expandable member can further include at least a first controllable portion (504) and a second controllable portion (503), where the expandable member, including the first controllable portion and the second controllable portion, is configured to transition between at least a partially retracted configuration and an expanded configuration under control of at least the first elongated control member (508). Further still, the first controllable portion can be configured to transition between at least a partially retracted configuration and an expanded configuration, while the second controllable portion (503) is configured to remain substantially unchanged, under control of at least the second elongated control member (502).
Abstract:
A clot removal device may include a tubular clot capture element having a first internal diameter and a clot engaging element having a second external diameter. The first diameter and the second diameter may be selected to permit the clot engaging element to be rotated within the tubular clot capture element. A method of removing a clot from a blood vessel may including delivering the tubular clot capture element and clot engaging element to a clot site such that the clot engaging element may rotate within the tubular clot engaging element.
Abstract:
A clot removal device and method for removing a clot from a blood vessel may include an expandable clot engagement element, an expandable clot capture element, and a sheath surrounding and compressing the capture element and the engagement element. The sheath may be removable to thereby enable the capture element to expand in a blood vessel in which the sheath is deployed, and to enable the engagement element to expand within the capture element.
Abstract:
The present invention provides an embolectomy device for removal of clots from vasculature, said device comprising: a proximal effecter characterized by a non-expanded configuration and an expanded configuration; a distal effecter characterized by a non-expanded configuration and an expanded configuration; said proximal effecter, in said expanded configuration is adapted for grasping a proximal portion of the target embolus; said proximal effecter, in said expanded configuration is adapted for grasping a distal portion of said target embolus; wherein both said effecters, when expanded, are oppositely positioned and are adapted to operate in concert, for trapping said clot such that said clot is (i) manipulatable along and/or around the main longitudinal axis of said vasculature in a predetermined set of motions; (ii) extracted out of said vasculature.
Abstract:
A system for protecting a high-speed input/output pad of an integrated circuit. The system includes a preferably parasitic silicon controlled rectifier (SCR) and a triggering mechanism that preferably includes an NMOS triggering FET. The SCR includes an anode connected to the input/output pad and a trigger input. The anode and the trigger input form a reverse-biased junction that, during normal operation of the integrated circuit, isolates the triggering mechanism from the input/output pad when power is applied to the integrated circuit.
Abstract:
A treatment device (500) is provided including a shaft (507), an expandable member, a first elongated control member (508) and a second elongated control member (502). The expandable member can further include at least a first controllable portion (504) and a second controllable portion (503), where the expandable member, including the first controllable portion and the second controllable portion, is configured to transition between at least a partially retracted configuration and an expanded configuration under control of at least the first elongated control member (508). Further still, the first controllable portion can be configured to transition between at least a partially retracted configuration and an expanded configuration, while the second controllable portion (503) is configured to remain substantially unchanged, under control of at least the second elongated control member (502).