Lateral retractor system and methods of use
First Claim
Patent Images
1. A surgical retractor comprising:
- a pair of pivotable armatures configured to rotate from a first position to a second position, each pivotable armature terminating on a posterior end in a worm gear mechanism;
a translatable armature configured to translate from a third position to a fourth position;
a body for supporting the pair of pivotable armatures and the translatable armature; and
a handle connected to the body comprising;
a first rotary actuator, operable to move the pair of pivotable armatures in opposite arcuate directions; and
a second rotary actuator on a common rotational axis with the first rotary actuator, the second rotary actuator operable to translate the translatable armature in a linear direction,wherein rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions to any position between the first position and the second position while the translatable armature remains stationary, and wherein rotation of the second rotary actuator linearly translates the translatable armature into any position between the third position and the fourth position while the pair of pivotable armatures remain stationary.
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Abstract
Technology disclosed herein relates to retractors and methods of use for surgical procedures, and in particular, spinal surgical procedures. In one embodiment, a surgical refractor includes a pair of pivotable armatures and a translatable armature. A body for supporting the armatures is provided, with a handle connected thereto. The handle includes a first rotary actuator, wherein a rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions, and a second rotary actuator, wherein a rotation of the second rotary actuator translates the translatable armature in a linear direction.
101 Citations
21 Claims
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1. A surgical retractor comprising:
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a pair of pivotable armatures configured to rotate from a first position to a second position, each pivotable armature terminating on a posterior end in a worm gear mechanism; a translatable armature configured to translate from a third position to a fourth position; a body for supporting the pair of pivotable armatures and the translatable armature; and a handle connected to the body comprising; a first rotary actuator, operable to move the pair of pivotable armatures in opposite arcuate directions; and a second rotary actuator on a common rotational axis with the first rotary actuator, the second rotary actuator operable to translate the translatable armature in a linear direction, wherein rotation of the first rotary actuator moves the pair of pivotable armatures in opposite arcuate directions to any position between the first position and the second position while the translatable armature remains stationary, and wherein rotation of the second rotary actuator linearly translates the translatable armature into any position between the third position and the fourth position while the pair of pivotable armatures remain stationary. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of creating a distraction corridor to a surgical site, the method comprising:
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providing a surgical retractor having a handle comprising two rotatable elements sharing a common rotational axis, and a plurality of blades moveable relative to the handle from a closed position to an open position; inserting simultaneously into a body tissue the plurality of blades; actuating a first of the two rotatable elements so as to separate at least two of the plurality of blades while maintaining a third of the plurality of blades in the closed position, wherein actuating the first of the two rotatable elements drives a worm drive to engage two worm gears disposed opposite the at least two of the plurality of blades on pivoting arms; and maintaining said at least two of the plurality of blades in the open position while actuating a second of the two rotatable elements so as to linearly translate the third of the plurality of blades. - View Dependent Claims (17, 18, 19, 20, 21)
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Specification