Abstract:
A system for performing minimally invasive cardiac procedures includes a pair of surgical instruments that are coupled to a pair of robotic arms. The instruments have end effectors that can be manipulated to hold and suture tissue. The robotic arms are coupled to a pair of master handles by a controller. The handles can be moved by the surgeon to produce a corresponding movement of the end effectors. The system may also have a robotically controlled endoscope which allows the surgeon to remotely view the surgical site.
Abstract:
A precipitation-hardened stainless maraging steel which exhibits a combination of strength, toughness, and corrosion resistance comprises by weight about: 8 to 15% chromium (Cr), 2 to 15% cobalt (Co), 7 to 14% nickel (Ni), and up to about 0.7% aluminum (Al), less than about 0.4% copper (Cu), 0.5% to 2.5% molybdenum (Mo), 0.4 to 0.75% titanium (Ti), up to about 0.5% tungsten (W), and up to about 120 wppm carbon (C), the balance essentially iron (Fe) and incidental elements and impurities, characterized in that the alloy has a predominantly lath martensite microstructure essentially without topologically close packed intermetallic phases and strengthened primarily by a dispersion of intermetallic particles primarily of the eta-Ni3Ti phase and wherein the titanium and carbon (Ti) and (C) levels are controlled such that C can be dissolved during a homogenization step and subsequently precipitated during forging to provide a grain-pinning dispersion.
Abstract:
A system for performing minimally invasive cardiac procedures. The system includes a pair of surgical instruments that are coupled to a pair of robotic arms. The instruments have end effectors that can be manipulated to hold and suture tissue. The robotic arms are coupled to pair of master handles by a controller. The handles can be moved by the surgeon to produce a corresponding movement of the end effectors. The controller controls and limits movement of robotic arms relative to the patient.
Abstract:
Sequential GPS Doppler carrier phase count measurements are used for precision sequential determination of position and velocity of a GPS receiver, such as for orbit determination and geolocation, with minimum throughput time. Real-time orbit determination and geolocation performance is enabled with an optimal sequential filter, and near-real-time performance is enabled with an optimal fixed-lag smoother. Many problems associated with prior art orbit determination are eliminated by addressing the “cycle slip” problem, the unknown initial range problem with RANGECP measurement representations, the problem of serial correlation in the measurements due to reprocessing of overlapping thermal noise. Also, the present invention significantly attenuates the carrier signal phase variation due to rotation of receiver antenna relative to transmitter antenna because the sequential phase count time intervals are sufficiently short.
Abstract:
A movable panel assembly for a vehicle includes a housing adapted to be mounted within the interior of a vehicle. A panel is pivotably mounted to the housing about an axis. The panel is pivotably movable between a closed position and an open position through a vertical position. A spring member is operatively connected to the panel and biases the panel to move from the closed position to the vertical position. A damper is operatively connected to the panel for selectively retarding movement of the panel toward the open position.
Abstract:
A minimally invasive surgical system includes a pair of surgical instruments having end effectors to hold and suture tissue, a pair of robotic arms coupled to the surgical instruments, a controller, and a pair of master handles coupled through the controller to the robotic arms, so that surgeon manipulation of the handles produces corresponding movement of the end effectors in an adjustably scaled fashion. An input button allows the surgeon to adjust the position of the handles without moving the end effectors, so that the handles may be moved to a more comfortable position. An optionally included robotically controlled endoscope allows the surgeon to remotely view the surgical site. Using the system, a cardiac procedure can be performed by making small incisions in the patient's skin, inserting the instruments and endoscope through the incisions, and manipulating the handles to move the end effectors to perform the cardiac procedure.
Abstract:
A system for performing minimally invasive cardiac procedures. The system includes a pair of surgical instruments that are coupled to a pair of robotic arms. The instruments have end effectors that can be manipulated to hold and suture tissue. The robotic arms are coupled to a pair of master handles by a controller. The handles can be moved by the surgeon to produce a corresponding movement of the end effectors. The controller controls and limits movement of robotic arms relative to the patient.
Abstract:
An automotive center stack panel assembly is providing comprising an automotive instrument panel assembly having a recessed display chamber formed therein. A video display panel assembly is mounted within the recessed display chamber. A pivot link assembly has a first fixed pivot end rotatably mounted to the automotive instrument panel assembly and a second fixed pivot end. A control panel has an upper control panel end and a lower control panel end. The second fixed pivot end is rotatably mounted to the upper control panel end such that the control panel is pivotable between a display hidden position and a display exposed position. The control panel covers the recessed display chamber when in the display hidden position.
Abstract:
A system for performing minimally invasive cardiac procedures. The system includes a pair of surgical instruments that are coupled to a pair of robotic arms. The instruments have end effectors that can be manipulated to hold and suture tissue. The robotic arms are coupled to a pair of master handles by a controller. The handles can be moved by the surgeon to produce a corresponding movement of the end effectors. The movement of the handles is scaled so that the end effectors have a corresponding movement that is different, typically smaller, than the movement performed by the hands of the surgeon. The scale factor is adjustable so that the surgeon can control the resolution of the end effector movement. The scale factor of the end effector can be set to zero to prevent movement of the end effector. An input button may also be provided so that the end effector only moves when the input button is depressed by the surgeon.