摘要:
Catheter apparatuses, systems, and methods for achieving renal neuromodulation by intravascular access are disclosed herein. One aspect of the present technology, for example, is directed to a treatment device having a multi-electrode array configured to be delivered to a renal blood vessel. The array is selectively transformable between a delivery or low-profile state (e.g., a generally straight shape) and a deployed state (e.g., a radially expanded, generally helical shape). The multi-electrode array is sized and shaped so that the electrodes or energy delivery elements contact an interior wall of the renal blood vessel when the array is in the deployed (e.g., helical) state. The electrodes or energy delivery elements are configured for direct and/or indirect application of thermal and/or electrical energy to heat or otherwise electrically modulate neural fibers that contribute to renal function or of vascular structures that feed or perfuse the neural fibers.
摘要:
The present disclosure describes methods and apparatus for renal neuromodulation via stereotactic radiotherapy for the treatment of hypertension, heart failure, chronic kidney disease, diabetes, insulin resistance, metabolic disorder or other ailments. Renal neuromodulation may be achieved by locating renal nerves and then utilizing stereotactic radiotherapy to expose the renal nerves to a radiation dose sufficient to reduce neural activity. A neural location element may be provided for locating target renal nerves, and a stereotactic radiotherapy system may be provided for exposing the located renal nerves to a radiation dose sufficient to reduce the neural activity, with reduced or minimized radiation exposure in adjacent tissue. Renal nerves may be located and targeted at the level of the ganglion and/or at postganglionic positions, as well as at pre-ganglionic positions.
摘要:
A regulator with a high side pass device and a low side pass device coupled in series to the high side pass device is disclosed. The apparatus further includes a control module coupled to the high side pass device and the low side pass device. The control module is coupled to the high side pass device and the low side pass device to control the high side pass device and the low side pass device. The control module is operable to lock out the high side pass device under certain conditions.
摘要:
The present disclosure comprises handle assemblies for intravascular treatment devices. In one embodiment, a handle assembly comprises an actuator for deflecting a distal region of an intravascular treatment device. In one embodiment, a handle assembly comprises a rotator for rotating an intravascular treatment device independently of the handle assembly. In one embodiment, a handle assembly comprises a rotation limiting element for limiting independent rotation of an intravascular treatment device relative to the handle assembly. Methods and systems for intravascular delivery, deflection and placement of an intravascular treatment device via a handle assembly of the present invention are also provided.
摘要:
A business software application system and method are provided that include a feed system for distributing changes about the application/module to a group of users and a cloud connector system that links external data sources to the business software application system and method.
摘要:
A business application system, such as a CRM system, is provided wherein the system include deeper chart drill-downs, access control lists, shared folders, a tracker module and/or a modular builder.
摘要:
A switch-mode DC/DC converter (101) and linear low drop out (LIDO) DC/DC regulator (105) are connected in parallel to drive a single load Both regulators share a common voltage reference, feedback network (103), input supply and output such that the regulated voltage is identical during each mode of operation. During heavy loads the switch-mode regulator (107) is in operation and the linear regulator is disabled for the highest efficiency possible. Conversely at light loads the linear regulator is in operation with the switch-mode regulator (107) disabled, also maximizing the efficiency. Each regulator senses load current (131) to automatically transition between the appropriate voltage regulators at fixed load current levels. The presented invention also includes a make before break transition scheme of the voltage regulators (103) to minimize the voltage transients.
摘要:
In one aspect described herein, a read head having one or more magnetoresistive (MR) sensors (or devices) is provided. In one example, the read head includes an MR sensor and an insulator layer disposed at the same level as the MR sensor. The read head further includes a bearing surface, wherein the insulator layer forms a portion of the bearing surface and is disposed between a surface of the MR sensor and the bearing surface to provide protection for the MR sensor from exposure to the bearing surface. The MR sensor may include a stack of thin-film layers to form an AMR, GMR, or TGMR sensor element. The stack may further include a slanted surface portion, wherein the insulator layer is disposed on the slanted surface portion, thereby recessing the MR sensor from the bearing surface.
摘要:
In an embodiment, an apparatus is provided. The apparatus includes a high side pass device. The apparatus also includes a low side pass device coupled in series to the high side pass device. The apparatus further includes a control module coupled to the high side pass device and the low side pass device. The control module is coupled to the high side pass device and the low side pass device to control the high side pass device and the low side pass device. Additionally, the apparatus includes a first resistor coupled in series with the high side pass device and the low side pass device. Furthermore, the apparatus includes a first comparator coupled in parallel with the first resistor. The first comparator has a threshold voltage input differential corresponding to a first current limit, and an output of the first comparator is coupled to the control module. Moreover, the apparatus includes a second comparator coupled to sense current of the high side pass device as a voltage. The second comparator has a threshold voltage input differential corresponding to a second current limit. An output of the second comparator is coupled to the control module. The second current limit is higher than the first current limit. Also, the control module is operable to lock out the high side pass device responsive to the output of the first comparator until a reset signal is received and is operable to lock out the high side pass device responsive to the output of the second comparator until a low current signal is received.
摘要:
Methods and apparatus are provided for thermally-induced renal neuromodulation. Thermally-induced renal neuromodulation may be achieved via direct and/or via indirect application of thermal energy to heat or cool neural fibers that contribute to renal function, or of vascular structures that feed or perfuse the neural fibers. In some embodiments, parameters of the neural fibers, of non-target tissue, or of the thermal energy delivery element, may be monitored via one or more sensors for controlling the thermally-induced neuromodulation. In some embodiments, protective elements may be provided to reduce a degree of thermal damage induced in the non-target tissues. In some embodiments, thermally-induced renal neuromodulation is achieved via delivery of a pulsed thermal therapy.