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US 2019/0290254 A1Published application
Balloon dilator
AssigneeMazor Robotics Ltd.
InventorsYossef BAR, Moshe SHOHAM
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AssigneeMazor Robotics Ltd.
InventorsYossef BAR, Moshe SHOHAM
Estimating the term…
A balloon dilator device, comprising an annularly shaped, cylindrical type structure having walls that are expandable from a radially collapsed state to a radially expanded state by inflation of a balloon inserted within the annular structure. Once the walls have been expanded, they remain in the expanded state even if the balloon is deflated, because the radially expanded state is a state of minimum mechanical potential energy, and in order to return to the collapsed state, the structure would have to pass a state of higher potential energy. The device walls require sufficient stiffness in their longitudinal direction to enable the device to be pushed into a minimally invasive incision made in the subject. This device stiffness can be achieved either by its mechanical material properties, or by its substantially closed wall structure, or by use of a stiff protector sheath used to protect the walls during insertion.
A balloon dilator device, comprising a longitudinally elongated, annularly shaped structure, said structure being expandable from a radially collapsed state to a radially expanded state by inflation of a balloon inserted within said structure,
A balloon dilator device according to any of the previous claims, further comprising an annular sheath having inner dimensions such that said device in its radially collapsed state fits within said annular sheath, said annular sheath being expandable with expansion of said annularly shaped structure.
A balloon dilator device according to any of the previous claims, wherein said structure is formed with at least one of corrugations, folds or creases directed along its length.
A balloon dilator device according to any of the previous claims, wherein said structure comprises a section of loosely coiled sheet, wherein at least a first part of said coiled sheet overlaps a second part of said coiled sheet.
A balloon dilator device, comprising an annularly shaped structure disposed in a radially collapsed state, said structure having an initial outer diameter, and an inner diameter adapted to receive an inflation balloon, such that when said balloon is inflated, said walls deploy radially from their collapsed state, such that said initial outer diameter expands to a final outer diameter which is maintained after deflation of said balloon,
A balloon dilator device comprising:
A method of dilating an incision through the soft tissue of a subject, said method comprising:
Dependencies are inferred from the claim text.