Orthopedic fixation systems and methods

摘要

Collapsible orthopedic fixation assemblies and related methods are disclosed. A collapsible fixation assembly includes end frames that are coupled with one or more cross beams. The fixation assembly is reconfigurable between a collapsed configuration in which the end frames are substantially aligned with the one or more cross beams and a deployed configuration in which the end frames are oriented transverse to the one or more cross beams and in which relative movement between the end frames and the one or more cross beams can be inhibited. The fixation assembly is configured to support at least one bone-interface component, which is configured to constrain a bone of a patient. In the collapsed configuration, the fixation assemblies is more compact than in the deployed configuration, thereby making it more easy to store and transport as compared to a comparable non-collapsible fixation assembly.

主权项

1. A collapsible orthopedic fixation assembly, comprising:
a first cross beam having a first end and a second end opposite to the first end; a first end frame coupled with the first end of the first cross beam, the first end frame being movable relative to the first cross beam between a collapsed configuration in which the first end frame is substantially aligned with the first cross beam and a deployed configuration in which the first end frame is oriented transverse to the first cross beam and in which relative movement between the first end frame and the first cross beam can be inhibited, the first end frame being configured to support at least one bone-interface component that is configured to constrain a bone of a patient, wherein the first end frame is a flat plate which has an H-shape and comprises a first vertical portion and a second vertical portion having straight and parallel outwardly facing sides running the entire height of the respective first vertical portion and the second vertical portion and a first connecting portion and wherein the first end of the first cross beam is coupled to one of the first vertical portion of the first end frame; and a second end frame coupled with the second end of the first cross beam, the second end frame being moveable relative to the first cross beam between a collapsed configuration in which the second end frame is substantially aligned with the first cross beam and a deployed configuration in which the second end frame is oriented transverse to the first cross beam and in which relative movement between the second end frame and the first cross beam can be inhibited, the second end frame being configured to support at least one bone-interface component that is configured to constrain a bone of the patient, wherein the second end frame is a flat plate which has the H-shape and comprises a third vertical portion and a fourth vertical portion having straight and parallel outwardly facing sides running the entire height of the respective third vertical portion and fourth vertical portion and a second connecting portion, wherein each of the vertical portions comprises a plurality of mounting holes arranged along the height thereof, said plurality of mounting holes extending entirely through the thickness of each vertical portion and configured to connect to a bone-interface component or a cross beam, wherein the second end of the first cross beam is coupled to the third vertical portion vertical portions of the second end frame, wherein in the collapsed configuration the first vertical portion of the first end frame, the third vertical portion of the second end frame and the first cross beam are positioned parallel and adjacent to one another, wherein in the collapsed configuration the second vertical portion of the first end frame, the fourth vertical portion of the second end frame and a second cross beam coupled to the first and second end frames are positioned parallel and adjacent to one another and wherein the first end frame and the second end frame are collapsible independently of one another.