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US 12,109,130 B2Granted
Surgical extractor
AssigneeShukla Medical
InventorsZachary Robert Sweitzer, Adam Gosik-Wolfe
Life of this patent
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Abstract
A surgical extractor that includes a first arm and a second arm, a linkage assembly connected to the first and second arms, and a driven shaft operatively engaged with the linkage assembly for moving the linkage assembly between first and second positions. The surgical extractor further includes a tensioning shaft engageable with the driven shaft for moving the driven shaft relative to the linkage assembly.
Claims21
A surgical extractor comprising:
- a first arm and a second arm;
- a linkage assembly comprising a plurality of links, wherein the linkage assembly is connected to each of the first and second arms at two locations along a length of each of the first and the second arms via separate unique links of the plurality of links;
- a driven shaft operatively engaged with the linkage assembly for moving the linkage assembly between a first position such that the first arm and the second arm are separated by a first distance and a second position such that the first arm and the second arm are separated by a second, smaller distance to provide a clamping force;
- and
- a tensioning shaft engageable with the driven shaft for moving the driven shaft relative to the linkage assembly, wherein the tensioning shaft is movable between (a) a locked position wherein the tensioning shaft is disengaged from the driven shaft and locked against axial movement and (b) a tensioning position wherein the tensioning shaft engages the driven shaft to allow for tension to be applied to the driven shaft.
2 more elements
A surgical extractor for extracting orthopedic implants comprising:
- a housing;
- a first arm and a second arm;
- a linkage assembly connected to the first and second arms;
- a driven shaft housed within the housing and operatively engaged with the linkage assembly for moving the linkage assembly;
- and
- a tensioning shaft housed within the housing and engageable with the driven shaft for moving the driven shaft relative to the linkage assembly,
- wherein the linkage assembly includes:
- a central link,
- a first triangular link having a first corner pivotably connected to a first side of the central link, and a second corner pivotably connected to the first arm,
- a second triangular link having a first corner pivotably connected to a second side of the central link, and a second corner pivotably connected to the second arm,
- a first drive link having a distal end pivotably connected to a third corner of the first triangular link and a proximal end pivotably connected to the housing, and
- a second drive link having a distal end pivotably connected to a third corner of the second triangular link and a proximal end pivotably connected to the housing.
9 more elements
Dependencies are inferred from the claim text.