摘要:
A vertebral body having an interior volume occupied, at least in part, by cancellous bone is selected for treatment. A percutaneous path is established into the vertebral body. A tool is introduced through the percutaneous path that creates a cavity in the cancellous bone. A bone filling material is conveyed to substantially fill the cavity. The bone filling material is pressurized within the cavity to enlarge the cavity.
摘要:
An expandable body is inserted into an area of cancellous within a vertebral body through a percutaneous access path. A bone filler is conveyed into the expandable body to expand the expandable body and displace cancellous bone and create a cavity occupied at least in part by the expandable body and the bone filler. The expandable body and the bone filler are left within the cavity to strengthen the vertebral body.
摘要:
A method selects a vertebral body having an interior volume occupied, at least in part, by cancellous bone. The vertebral body has at least one cortical plate that is depressed due to fracture. The method establishes a percutaneous path into the vertebral body. The method introduces through the percutaneous path a tool that forms a region of compressed cancellous bone. The method conveys a bone filling material through the percutaneous path into the region to move the fractured cortical plate toward a desired anatomic position.
摘要:
A first tool establishes a percutaneous path into the vertebral body having an interior volume occupied, at least in part, by cancellous bone. The vertebral body has at least one cortical plate that is depressed due to fracture. A source of bone filling material has a viscosity that resists extravazation into cancellous bone, and a second tool conveys the bone filling material through the percutaneous path to move the fractured cortical plate toward a desired anatomic position. A third tool can be provided that is sized and configured for introduction through the percutaneous path and including an operative element that conditions cancellous bone for the introduction of the bone filling material.
摘要:
An apparatus comprises a body portion having a sidewall with one or more threads and defining a lumen. The apparatus includes a brace portion having a sidewall that defines a lumen that is fluidically coupled to the lumen of the body portion. The sidewall of the brace portion has one or more threads that are configured to matingly couple to the threads of the body portion. The brace portion has a contact surface configured to contact a bodily tissue of a patient when a cannula is disposed within the lumen of the body portion and the lumen of the brace portion. The brace portion and the body portion are collectively configured to maintain a position of the cannula within a body of the patient relative to the bodily tissue when the cannula is disposed within the lumen of the brace portion and the lumen of the body portion.
摘要:
A medical implant device includes a shaft, an expandable member coupled to the distal end portion of the shaft, a sleeve and a detachment mechanism. The expandable member is configured to move between a collapsed configuration and an expanded configuration, and can be used to deliver a medicament, a therapeutic substance and/or a structural member into the body. The sleeve is coupled to the distal end portion of the shaft, and is configured to move relative to the shaft between a first position and a second position. The sleeve is configured to be disposed about the expandable member when in the first position and disposed apart from the expandable member when in the second position. The detachment mechanism is coupled to the distal end portion of the shaft, and is configured to detach the expandable member from the shaft when the sleeve is in the second position.
摘要:
Methods and apparatus for surgical treatment of vertebrae, comprising a brush-like tamp component for addressing cancellous bone and a slider component that may be distally advanced over the brush-like tamp component while both are (preferably) aligned within a working cannula providing access to a drill channel within the vertebrae. Distal advancement of the slider creates a combination of it and the brush-like component. A handle provides mechanical advantage.
摘要:
An extractable device is used to insert a flowable material into a vertebral body. The device comprises a filling member and a flowable material. The filling member is made of a flexible wall which includes a holding portion and an injection port via which the flowable material is injected into the holding portion after insertion into the vertebral body. The holding portion is provided with an opening which is releasably closed by a closure device so as to make the opening substantially resistant to the passage of material there through. Once the flowable material in the holding portion increases in viscosity, the closure device is released, thereby enabling the filling member to be extracted from the vertebral body so as to leave only the material in the vertebral body. The flowable material should be a material capable of setting to a hardened condition.
摘要:
An apparatus includes an elongate body and an expandable member coupled to the elongate body. In one embodiment, the expandable member has a collapsed configuration, an unfolded configuration and an expanded configuration. The expandable member is configured to be percutaneously inserted into an interior portion of a bone structure when the expandable member is in the collapsed configuration. The expandable member is configured to exert a pressure in a vertical direction on a first portion of the bone structure in contact with the expandable member greater than a pressure exerted in a lateral direction on a second portion of the bone structure in contact with the expandable member when the expandable member transitions from the unfolded configuration to the expanded configuration.