Maintenance feature in magnetic implant
AssigneeGlobus Medical, Inc.
InventorsScott Pool, Arvin Chang
Life of this patent
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Abstract
A distraction system includes a distraction rod having one end configured for affixation to at a first location on patient. The system further includes an adjustable portion configured for placement in the patient at a second location, the adjustable portion comprising a housing containing a magnetic assembly comprising a magnet, the magnetic assembly secured to a threaded element that interfaces with an opposing end of the distraction rod. The system includes a magnetically permeable member in proximity to the magnetic assembly and covering an arc of less than 360° of the adjustable portion.
Claims12
An adjustable implant comprising:
- a housing;
- at least two magnetically permeable components disposed in the housing and configured to change a dimension of the adjustable implant upon a rotation of the at least two magnetically permeable components about a longitudinal axis of the adjustable implant;
- and
- a maintenance member attached to the housing and comprising a magnet configured to attract at least one of the at least two magnetically permeable components.
A distraction system comprising:
- a distraction rod having a first end configured for placement in a patient at a first location and a second end opposite the first end;
- an adjustable portion configured for placement in the patient at a second location and configured to engage the second end of the distraction rod, the adjustable portion comprising a housing, and a magnetic assembly disposed within the housing;
- the magnetic assembly including two magnetically permeable components configured to translate the distraction rod relative to the housing upon a rotation of the two magnetically permeable components about a longitudinal axis of the adjustable portion;
- and
- a first magnet attached to the adjustable portion and adapted to magnetically attract at least one of the two magnetically permeable components.
An adjustable implant comprising:
- a housing;
- at least two magnetically permeable components in the housing and configured to change a dimension of the adjustable implant upon a rotation of the at least two magnetically permeable components about a longitudinal axis of the adjustable implant;
- and
- a maintenance magnet rigidly attached to the housing, the maintenance magnet configured to attract at least one of the at least two magnetically permeable components.
Dependencies are inferred from the claim text.