摘要:
Methods and systems are disclosed for stimulating contents of the carotid sheath using an intravascular pulse generator and lead. The lead carries an energy delivery device such as an electrode, which is anchor within the portion of the internal jugular vein that is disposed within the carotid sheath. The energy delivery device is energized to transvenously direct energy to target contents of the carotid sheath external to the internal jugular vein. Such target contents may include nervous system elements associated with the carotid sinus baroreceptors, the carotid sinus nerve and associated nerve branches, and or the vagus nerve and associated nerve branches. The system may be used to control blood pressure and/or to lower heart rate and may be suitable for treatment of hypertension, heart failure, or other conditions.
摘要:
The present disclosure describes intravascular systems that may be used for a variety of functions. The elements of the disclosed systems include at least one device body implanted within the vasculature. Electrodes on a lead and/or on the device body itself are used to direct electrical energy to neurological targets. These systems may additionally include one or more fluid reservoirs housing drugs or other agents to be delivered to tissue.
摘要:
An intestinal implant includes a proximal anchor self-expandable from a radially compressed position to a radially expandable position for engagement with a wall of the intestinal lumen and a flexible sleeve coupled to the anchor. The sleeve is implanted with the anchor downstream from the pylorus and the sleeve extending further downstream through the intestinal lumen.
摘要:
A system for performing multi-tool minimally invasive medical procedures through a single instrument port into a body cavity includes a rigid tube carried by a mount. Cannulas having instrument channels and steerable distal ends extend distally from the rigid tube. During a procedure using the system, the mount is supported by an operating room fixture, and instruments are advanced through the steerable instrument channels. Manipulation of the instrument handles engages actuators positioned on the mount, which steer the distal ends of the cannulas through the action of pull cables. The distal ends of the instruments may thus be steered within the body by the distal ends of the steerable cannulas.
摘要:
A multi-instrument access device includes a base positionable within a percutaneous opening formed in a body. Ports are positioned on the base for receiving instruments to be inserted into the body for use in a procedure. Tubular instrument tubes having steerable distal ends may be insertable through the ports for receiving the instruments and for orienting the operative ends of the instruments toward a target site.
摘要:
A multi-instrument access device includes a base positionable within an opening (e.g. an incision or puncture) formed in a body wall and a dome-shaped seal on the base and positioned such that it is disposed outside the body wall during use. A plurality of instrument ports extend proximally from the seal for receiving instruments to be inserted into the body for use in a procedure. Tubular instrument tubes having pre-curved distal ends may be insertable through the ports for receiving the instruments and for orienting the operative ends of the instruments toward a target site.