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US 6,280,477 B1Granted
Cement restrictor
AssigneeDePuy Orthopaedics, Inc.
InventorsBrooke W. Mastrorio, Pierre S. Ostiguy
Life of this patent
Estimating the term…
Abstract
A cement restrictor is provided for creating a fixed obstruction within a bone. An exemplary cement restrictor includes a member or body that is expandable or transitionable from a first diameter to a second diameter.
Claims25
A cement restrictor comprising:
- a fluid impermeable structure which includes a plurality of linked biocompatible elements, wherein the structure is transitionable from a first configuration to a second, expanded configuration to form a fluid impermeable barrier.
A cement restrictor comprising:
- a fluid impermeable configurable structure which includes a plurality of linked biocompatible elements which together form a fluid impermeable barrier, wherein the plurality of biocompatible structures are linked together with an elongate wire.
A cement restrictor comprising:
- a fluid impermeable configurable structure which includes a plurality of linked biocompatible elements which together form a fluid impermeable barrier, wherein the configurable structure includes a first portion linked to a second portion by a linking element, wherein the second portion is configurable from a first diameter to a second diameter and includes an element of shape memory material that is activated at a first temperature to change the configuration of the second portion.
Dependencies are inferred from the claim text.