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US 2023/0398030 A1Published application
Shoulder hold down and locking mechanism therefor for use with a surgical frame
AssigneeWarsaw Orthopedic, Inc.
InventorsRichard A. Hynes, Roy K. Lim
Life of this patent
Estimating the term…
Abstract
A shoulder hold-down is provided for use in securing at least a shoulder of a patient in position relative to a surgical frame. The shoulder hold-down includes a locking mechanism that is adjustable to afford positioning of a shoulder engaging portion for contacting the patient.
Claims20
A locking mechanism comprising:
- an arm portion including a first shaft portion and a second shaft portion, the arm portion including a first end, an opposite second end, and a mid-longitudinal axis extending through the first end and the second end, the second shaft portion being expandable and contractable relative to the first shaft portion, the first shaft portion adjacent the first end of the arm portion including at least a first aperture, and the second shaft portion adjacent the first end of the arm portion including a second aperture;
- a lever-spring portion having a handle portion and a spring portion, the spring portion including at least a first side portion having a third aperture and a fourth aperture formed thereon;
- a collar portion having a first post portion and a fifth aperture, end portions of each of the first shaft portion and the second shaft portion adjacent the first end of the arm portion being positioned adjacent the collar portion;
- one of a first rod and a first fastener extending through the first aperture and the third aperture to attach the first shaft portion of the arm portion and the lever-spring portion, one of a second rod and a second fastener extending through the first aperture, the second aperture, and the fifth aperture to attach the first shaft portion of the arm portion, the second shaft portion of the arm portion, and the collar portion to one another, and the first post portion being received in the fourth aperture to attach the spring portion and the collar portion to one another;
- wherein movement of the handle portion from an unactuated position to an actuated position pivots the first side portion of the spring and moves the one of the second rod and the second fastener to correspondingly cause expansion of the second shaft portion relative to the first shaft portion.
2 more elements
A locking mechanism comprising:
- an arm portion including a first shaft portion and a second shaft portion, the arm portion including a first end, an opposite second end, and a mid-longitudinal axis extending through the first end and the second end, the second shaft portion being expandable and contractable relative to the first shaft portion, the first shaft portion adjacent the first end of the arm portion including at least a first aperture, and the second shaft portion adjacent the first end of the arm portion including a second aperture;
- a lever-spring portion having a handle portion, a spring portion, and a collar portion, the spring portion including at least a first side portion having a third aperture and a fourth aperture formed thereon,
- the collar portion having a first post portion and a fifth aperture, end portions of each of the first shaft portion and the second shaft portion adjacent the first end of the arm portion being positioned adjacent the collar portion;
- and
- one of a first rod and a first fastener extending through the first aperture and the third aperture to attach the first shaft portion of the arm portion and the lever-spring portion, one of a second rod and a second fastener extending through the first aperture, the second aperture, and the fifth aperture to attach the first shaft portion of the arm portion, the second shaft portion of the arm portion, and the collar portion to one another, and the first post portion being received in the fourth aperture to attach the spring portion and the collar portion to one another;
- wherein movement of the handle portion from an unactuated position to an actuated position causes expansion of the second shaft portion relative to the first shaft portion via pivotal movement of the first side portion of the spring portion and movement of the one of the second rod and the second fastener.
3 more elements
A locking mechanism, the locking mechanism comprising:
- an arm portion including a first shaft portion and a second shaft portion, the arm portion including a first end, an opposite second end, and a mid-longitudinal axis extending through the first end and the second end, the first shaft portion adjacent the first end of the arm portion including at least a first aperture, and the second shaft portion adjacent the first end of the arm portion including a second aperture;
- a lever-spring portion having a handle portion and a spring portion, the spring portion including at least a first side portion having a third aperture and a fourth aperture formed thereon,
- a collar portion including a first post portion and a fifth aperture;
- and
- one of a first rod and a first fastener extending through the first aperture, and the third aperture to attach the first shaft portion of the arm portion and the lever-spring portion, one of a second rod and a second fastener extending through the first aperture, the second aperture, and the fifth aperture to attach the first shaft portion of the arm portion, the second shaft portion of the arm portion, and the collar portion to one another, and the first post portion being received in the fourth aperture to attach the spring portion and the collar portion to one another;
- wherein movement of the one of the second rod and the second fastener toward the one of the first rod and the first fastener via movement of the handle portion from an unactuated position to an actuated position causes the second shaft portion to expand relative to the first shaft portion;
- and
- wherein return movement of the handle portion from the actuated position to the unactuated position is resisted by flexion of portions of the spring portion.
5 more elements
The locking mechanism of claim 17 used as part of a shoulder hold-down for use in securing at least a shoulder of a patient in position relative to a surgical frame, the shoulder hold-down comprising the locking mechanism, a shoulder engaging portion, and a base portion,
- the shoulder engaging portion being attached relative to the arm portion, and including a shoulder contacting structure configured to contact at least the shoulder of the patient, and
- the base portion being attached relative to the surgical frame, and including an aperture extending therethrough, the aperture of the base portion including an interior surface and being configured to receive portions of the first shaft portion and the second shaft portion therein.
Dependencies are inferred from the claim text.