Keyhole rod bender
OwnerRuben Hartmeister, Walter E. Strippgeninventors
Life of this patent
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Abstract
A pair of surgical in situ rod benders having keyhole notches to prevent slipping off the rod while in use. The in situ benders also have a 20.degree. offset angle to allow a criss-cross pushing tension during bending. A flat tapered handle helps the surgeon counter rotational torques during bending.
Claims18
A first and second rod bender capable of plastically deforming a rod by movement relative to each other under an influence of force manually applied to end portions of said first and second rod benders, said first and second rod benders each comprising:
- a handle having a center;
- a working end at one end of said handle;
- said working end further comprising a working end central axis;
- said working end further comprising a rod slot having a bottom, a rod slot central axis, and a diameter;
- and
- said rod slot further comprising a keyhole hollow at the bottom formed substantially by a pair of offset bores, whereby the rod is held in a substantially static manner by opposing notches in the keyhole hollow.
A first and second surgical rod bender capable of plastically deforming a surgically implanted rod in situ by movement relative to each other under an influence of force manually applied to end portions of said first and second rod benders, said first and second rod benders each comprising:
- a shaft having a central handle portion;
- a working end at each end of the shaft;
- said working ends each further comprising a rod slot having a bottom, a rod slot central axis, and a diameter;
- and
- said rod slot further comprising a keyhole hollow at the bottom formed substantially by a pair of bores 2.degree. to 5.degree. offset relative to the rod slot central axis, whereby the rod is held in a substantially static manner by opposing notches in the keyhole hollow.
A pair of rod benders each comprising:
- a shank;
- a working end at one end of the shank;
- said working end further comprising a rod slot having a rod slot central axis 90.degree. offset to the working end;
- said rod slot further comprising a diameter to accommodate a rod, and a bottom;
- and
- said rod slot bottom further comprising a keyhole hollow formed substantially by a pair of offset bores, whereby the rod is held in a substantially static manner by opposing notches in the keyhole hollow.
Dependencies are inferred from the claim text.