摘要:
A flexible compression screw having multiple segments, one or more of which are flexible and one or more segments that also include threads. The flexibility is created through the use of at least one helical slot formed generally in the center segment of the element. Additional flexible segments also have at least one helical slot in either the same helical rotation and pattern or in an opposite rotation and/or different pattern. An elastomeric material can fill the hollow body, extend into the slots and/or encompass the exterior. The flexible screw can have a hollow body, including leading and trailing edge, or can have a partially hollow body.
摘要:
An improved flexible component used for dynamic stabilization of spinal segments for the treatment of vertebrae deformities and injuries and for the replacement of a complete or segment of the body of a vertebra in the spine is described. The flexible component is comprised of a solid, suitable implant material with a longitudinal bore the entire length and an appropriately formed slot which extends spirally around the shaft either continuously or segmentally. The flexible component may be encapsulated, fully or partially, in a suitable implant grade elastomeric resilient material. When used for a dynamic stabilization device, the component is attached to the vertebral bodies by pedicle screws know to those in the art. When used as a vertebral replacement device, attached to the component's opposite ends are members for attachment to the adjacent vertebra that allow for height and angular adjustment.
摘要:
A tool having a flexible shaft, a first end and, a second end and capable of being bent about its axis. The tool transfers rotary motion from a device to tool. The shaft, manufactured from a rigid material, has at least one flexible segment, each flexible segment have at least one sinuous slot ascending in a helical path. With multiple segments, the helical path of the slots can be opposite or the same. With one or more segments having multiple slots, the slots can be parallel or have opposite ascensions, thereby crossing one another. The helical paths can vary within each segment or from segment to segment.
摘要:
An apparatus for cleaning cannulated surgical tools comprises a hollow body with lavage fluid holes at a first end along with a brush adaptor affixed to the hollow body. An inlet adaptor is affixed, having to a second end of the hollow body. A body hub, consisting of inlet channel and drain channel is in liquid communication with an inner lavage fluid tube. A lavage connection tube is in liquid communication with the hollow body at the brush adaptor and through the upper connecting lavage fluid orifice. An inner lavage fluid tube, having an inner channel, extends within the hollow body with a distal end in liquid communication at a proximal end of the inner channel within the inlet adaptor. There are multiple spray openings proximate the distal end of the inner lavage fluid connection tube and a tube brush is dimensioned to fit within the inner channel. The apparatus can be provided with attachment members and combined with a reservoir to make the unit self-contained.