摘要:
A retractor for manipulating a vessel in a patient includes a working head shaped to define a working space in the tissue of a patient and at least a first manipulator for manipulating a vessel located proximate the working space, the first manipulator having a retracted position and an extended position. The first manipulator if disposed at least partially within the working space when the first manipulator is in the retracted position.
摘要:
An instrument for manipulating a vessel in a patient includes a cannula having a lumen for providing insufflation to create a working space in the tissue of a patient, and a first manipulator for manipulating a vessel located within the working space. The first manipulator is slidably movable within the cannula from a stowed position, where the first manipulator is substantially disposed within the cannula, to a forward position, where at least a portion of the first manipulator is disposed outside the cannula. The first manipulator is rotatable when in the forward position to an extended position.
摘要:
An instrument for manipulating a vessel in a patient includes a cannula having a lumen for providing insufflation to create a working space in the tissue of a patient, and a first manipulator for manipulating a vessel located within the working space. The first manipulator is slidably movable within the cannula from a stowed position, where the first manipulator is substantially disposed within the cannula, to a forward position, where at least a portion of the first manipulator is disposed outside the cannula. The first manipulator is rotatable when in the forward position to an extended position.
摘要:
An exemplary method of communicating with a safety device includes obtaining a key from the safety device that is useable for only a single communication session with the safety device. A plurality of messages are sent to the safety device during the single communication session. Each of the plurality of messages includes the obtained key, an identifier of the source of the message, an identifier of the safety device, a sequence number indicating how many of the plurality of messages preceded the message during the communication session, a command for the safety device, and at least one cyclic redundancy code (CRC) based on content of the message. A next one of the plurality of messages is sent only after confirming that the safety device has accepted a most recently sent one of the plurality of messages.
摘要:
In exemplary implementations, transplantation of nucleic acids into cells occurs in microfluidic chambers. The nucleic acids may be large nucleic acid molecules with more than 100 kbp. In some cases, the microfluidic chambers have only one orifice that opens to a flow channel. In some cases, flow through a microfluidic chamber temporarily ceases due to closing one or more valves. Transplantation occurs during a period in which the contents of the chambers are shielded from shear forces. Diffusion, centrifugation, suction from a vacuum channel, or dead-end loading may be used to move cells or buffers into the chambers.
摘要:
In one embodiment, the present invention is a method and apparatus for layering agents in a distributed computing system. In one embodiment, a system for monitoring and controlling a distributed computer network including a plurality of components (e.g., devices) includes a plurality of cells, each of the cells being deployed to directly monitor and control one of the components of the network. The system also includes at least one federation, where the federation is made up of cells that cooperate to solve common problems, and at least one supercell, where the supercell provides supplemental decision making capabilities to the cells and federations. In this manner, problems detected by a cell that cannot be resolved by the cell may be forwarded to the cell's associated federations or supercells for resolution.
摘要:
A digital audio speaker system for a digital audio player that includes a housing and a control unit positioned in the housing. An amplifier is positioned in the housing and connected with the control unit and a speaker system. A frame assembly is positioned in the housing that includes a motorized drive assembly. A drawer assembly is movably connected with the motorized drive assembly. The motorized drive assembly is operable to move the drawer assembly between an open position and a closed position.