Collapsible and expandable device and methods of using same
OwnerArthur Martinus Michael AALSMA, Hubertus Paul Maria Ter Braak +1inventors
InventorsArthur Martinus Michael AALSMA, Hubertus Paul Maria Ter Braak, Thomas Allard Xander Bonnema
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Abstract
The present invention provides a device (10) suitable for insertion between vertebral portions and having a first, collapsed, position and a second, extended, position, wherein the device comprises upper and lower supports (18, 20) and side supports (22, 24) pivotally connected thereto and in which one of said side supports includes a reaction surface (34) against which, in operation, an actuation member (36) acts so as to cause opening of said device. The device may be used as an implant or prosthesis or as a tool for compacting diseased bone material. The medical methods of using the device are also disclosed.
Claims51
A device for insertion between vertebral portions and having a first collapsed position and a second extended position comprises:
- a) a first (upper) support member;
- b) a second (lower) support member;
- and
- c) first and second side supports;
- wherein, said side supports are pivotally connected to said upper and lower members and wherein one or more of said side supports includes a reaction surface against which, in operation, an actuation member reacts to cause opening of said instrument from said collapsed to said extended position.
Dependencies are inferred from the claim text.