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Elongate flexible torque instruments and methods of useElongate flexible torque instruments and methods of use description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090099554, Elongate flexible torque instruments and methods of use. Brief Patent Description - Full Patent Description - Patent Application Claims
This application is a continuation-in-part of PCT Application Serial No. PCT/US2007/071535, titled “Torque Shaft and Torque Drive”, filed on Jun. 19, 2007, which claims priority to U.S. Provisional Application Ser. No. 60/805,334, titled “Torque Shaft and Torque Drive”, filed on Jun. 20, 2006, each of which is incorporated herein by reference in its entirety for all purposes. 1. Field Embodiments of the present invention relate generally to elongate flexible instruments, and more particularly, to the manufacture and use of such elongate flexible instruments, which may be configured to be extension tools for a variety deployment, placement, installation, maintenance, repair, or removal type of functions, procedures, operations, or applications. 2. Background Typical elongate flexible instruments may be comprised of flexible shafts, tubes, rods, etc., which may be susceptible to torque deflection or torque lag to the extent that rotation of one end of the instrument may not correlate closely to rotation of the opposite end of the instrument and substantial amount of wind-up or excessive amount of initial rotation or torque may be required at the outset before correlatable rotation or torque transmission could be achieved. In addition, elongate flexible instruments may be susceptible to buckling and/or kinking such that reliable torque transmission may be for practical purposes virtually impossible. Accordingly, there is a need for an elongate flexible instrument that allows improved transmission of rotation or torque. Various embodiments of an apparatus for transmission of torque are disclosed herein. In one variation, an apparatus for transmission of torque includes an elongate body, wherein said elongate body is comprised of a plurality of segments; each segment may be configured to flex or pivot with respect to an adjacent segment and each segment may include at least two link elements. In one example, an apparatus for transmitting torque includes a plurality of joined segments in an axial arrangement, wherein each of said segments may be linked or joined to an adjacent segment by a living link element and the segments may be configured to flex or pivot about said living link element. In another example, an apparatus for transmitting torque includes an elongate body, wherein said elongate body may be comprised of a plurality of joined segments. Each segment may be configured to flex or pivot with respect to an adjacent segment and each segment may be configured to have a pair of link elements. Each link element may include a hub and a plurality of living link elements extending from said hub that may be coupled to a rim of an adjacent segment. An exemplary embodiment of a method for operating an apparatus for transmitting torque is disclosed, which may be applicable to any or all of the apparatuses as described in accordance with embodiments of the present invention disclosed herein. The method may include attaching a medical prosthesis at a distal end of said torque transmitting apparatus, inserting said prosthesis into a patient\'s vasculature, navigating within said patient\'s vasculature, and deploying said medical prosthesis at a target region. Other systems, methods, features, and advantages of the present invention will be apparent to one of ordinary skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features, and advantages be within the scope of the present invention. It is also intended that the present invention is not limited to the specific details of the exemplary embodiments. The details of the invention, both as to its structure and operation, may be gleaned in part by study of the accompanying figures, in which like reference numerals refer to like parts. The components in the figures are not necessarily drawn to scale; instead emphasis is placed upon illustrating the principles of the invention. Moreover, all illustrations are intended to convey concepts, where relative sizes, shapes and other detailed attributes may be illustrated schematically rather than literally or precisely. Continue reading about Elongate flexible torque instruments and methods of use... 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