摘要:
A catheter system allows for percutaneous intervention on the fast-moving structures inside the heart. The device consists of a steerable catheter sheath, an actuated, multi-degree of freedom moving catheter, and a catheter end effector, such as a fixation device. An actuator controls the motion of the catheter guide-wire in the catheter sheath to follow the motion of the target tissue. A control system controls the actuator and compensates for mechanical characteristics of the system including friction and backlash. A 3-D imaging system can be used to view the motion of the target tissue and the catheter end effector and produce 3-D imaging data. The 3-D imaging data can be used by the control system to track the target tissue and accurately position the end effector with respect to the moving target tissue allowing a clinician to repair the target tissue while it is moving. The system can be used to perform mitral valve annuloplasty wherein the actuated catheter compensates for the heart valve motion and an end effector fixation device is used to place fixation items, like anchors or staples, into the heart valve tissue to fix the annulus.
摘要:
A self-actuating robot or vehicle tether capable of moving itself, remaining free while traversing around obstacles, and free itself is disclosed. In a preferred embodiment of the invention, a valve is mounted to the tether or robot. An inflow conduit attached to or in the tether is connected to the valve. A fluid flows through the tether and the valve is opened and closed to create a waterhammer effect in the inflow conduit. The forces created on the tether from the waterhammer effect result in motion of the tether and in freeing of the tether from obstructions. Closing and opening the valve further creates pressure changes in the tether, thereby causing momentary dimensional changes in the tether. In an alternative embodiment, a plurality of valves are placed along the tether. Pulsing of the plurality of valves while a fluid flows through the tether results in the tether effectively moving itself.
摘要:
The tailgate table includes a panel having a first pair of legs pivotally affixed to a lower side at a first end of the panel. At least one fastener is disposed on a second end of the panel wherein the fastener is can removably secure the second end to a tailgate of a vehicle. The second end is beveled to engage with the tailgate.
摘要:
A tailgate table. The tailgate table includes a panel having a first pair of legs pivotally affixed to a lower side at a first end of the panel. At least one fastener is disposed on a second end of the panel wherein the fastener is can removably secure the second end to a tailgate of a vehicle. The second end is beveled to engage with the tailgate.
摘要:
Systems and methods for providing insurance companies with historical data indicating their placement results versus peer insurance companies with a broker and proactively identify upcoming policy opportunities from a broker. The systems and methods configured to store placement information for insurance policies, receive policy criteria selection information from a user, wherein at least a portion of the policy criteria selection information is unique to an insurance company associated with the user, determine opportunity information based on the policy criteria selection information, the opportunity information including data for insurance policies that are one of scheduled to expire and scheduled for submission to insurance companies within a predetermined time frame, determine historical information based on the policy criteria selection information, the historical information including performance metrics for the insurance company and average performance metrics for peer insurance companies and provide the opportunity information and historical information to the user.
摘要:
A multi-fingered underactuated mechanical grasping system driven by a single actuator, yet can grasp objects spanning a wide range of size, shape, and mass. A member for moving a link relative to a base acts in parallel to a direction of compliance of a joint between the link and the base. The joint has a plurality of degrees of freedom. The number of members for moving links in the grasping system is less than the number of degrees of freedom in the grasping system.
摘要:
A tailgate table. The tailgate table includes a panel having a first pair of legs pivotally affixed to a lower side at a first end of the panel. At least one fastener is disposed on a second end of the panel wherein the fastener is can removably secure the second end to a tailgate of a vehicle. The second end is beveled to engage with the tailgate.
摘要:
A mechanical grasping system that is both simple to fabricate and operate and robust. A multi-fingered hand may be driven by a single actuator, yet can grasp objects spanning a wide range of size, shape, and mass. The hand may be constructed using polymer-based Shape Deposition Manufacturing, with joints formed by elastomeric flexures and actuator and sensor components embedded in tough rigid polymers. The passively compliant, adaptive hand has superior robustness properties, able to withstand large impacts without damage and capable of grasping objects in the presence of large positioning errors, appropriate for use in unstructured and/or human environments.
摘要:
A flame retardant moldable thermoplastic resin composition consisting of a thermoplastic resin and a flame retardant consisting of a combination of a low molecular weight phosphate having a molecular weight of about 500 to about 2000 and a high molecular weight phosphate having a molecular weight of about 2300 to about 11,000 and to articles molded therewith. The composition has a high heat deflection temperature, good impact resistance, excellent flame retardancy and good flow for easier processing.
摘要:
A backpack device including a flexible enclosure for containing a load to be supported and carried by a wearer and a frame for supporting the flexible enclosure. Shock absorbers are pivotally connected to the frame and to a waist belt for absorbing shock between the flexible enclosure and the wearer.