Anchorless non-invasive force dissipation system for orthopedic instrumentation
First Claim
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1. An anchorless non-invasive force dissipation device for orthopedic instrumentation comprising:
- a base having a patient contacting surface, the patient contacting surface including a surface area adapted for external placement on a patient'"'"'s body such that applied forces are dissipated across the surface area, and an instrument alignment mechanism operably connected to the base and selectively positionable in at least 2 degrees of freedom relative to the base.
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Abstract
An anchorless non-invasive force dissipation device for orthopedic instrumentation including a base having a patient contacting surface, the patient contacting surface including a surface area adapted for external placement on a patient'"'"'s body, and an instrument alignment mechanism operably connected to and selectively positionable relative to the base, the instrument alignment mechanism adapted to interface with at least one orthopedic instrument, such that forces applied by the orthopedic instrument are dissipated across the surface area of the base with the device being unanchored externally of the patient.
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Citations
24 Claims
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1. An anchorless non-invasive force dissipation device for orthopedic instrumentation comprising:
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a base having a patient contacting surface, the patient contacting surface including a surface area adapted for external placement on a patient'"'"'s body such that applied forces are dissipated across the surface area, and an instrument alignment mechanism operably connected to the base and selectively positionable in at least 2 degrees of freedom relative to the base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device for dissipating force comprising:
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a base having a patient contacting surface, the patient contacting surface including a surface area adapted for placement on a patient'"'"'s body such that applied forces are dissipated across the surface area, a sheath having a proximal end and a distal end, the distal end including a depth stop, the sheath being positionable in at least 2 degrees of freedom relative to the base, and a working cannula slidably received through the depth stop. - View Dependent Claims (12, 13, 14)
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15. A method for dissipating force applied to a patient comprising the steps of:
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placing a base having a patient contact surface area onto the patient such that applied forces are dissipated across the surface area, positioning a sheath relative to the base, and sliding a working cannula through the sheath and into the surgical site. - View Dependent Claims (16)
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17. A method for dissipating force applied to a patient comprising the steps of:
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placing a base having a patient contacting surface area on a patient, positioning an instrument alignment mechanism relative to the base, positioning at least one orthopedic instrument to interface with the instrument alignment mechanism, applying force with orthopedic instruments, such that forces applied by the orthopedic instrument are dissipated across the surface area of the base.
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18. A method for establishing an insertion pathway in a patient for surgical instruments comprising the steps of:
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placing a base having a patient contact surface area onto the patient such that applied forces are dissipated across the surface area, inserting an instrument alignment mechanism onto the base, and locking the instrument alignment mechanism into a position establishing a repeatable trajectory for the insertion of surgical instruments. - View Dependent Claims (19)
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20. A medical device for dissipating force comprising:
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means for contacting a patient surface and dissipating applied forces over the patient surface, and means for aligning instruments selectively positionable in at least 2 degrees of freedom with respect to the means for contacting.
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21. A medical device for dissipating force comprising:
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a plurality of bases, each of the plurality of bases having a patient contacting surface, the patient contacting surface including a surface area adapted for placement on a patient'"'"'s body such that applied forces are dissipated across the surface areas of the plurality of bases;
each of the plurality of bases having an instrument alignment mechanism positionable in at least 2 degrees of freedom thereon;
each of the instrument alignment mechanisms being operably connected to each of the other instrument alignment mechanisms at a juncture outside a perimeter of the plurality of bases.
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22. A method for aligning surgical instruments comprising the steps of:
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providing a base having a patient contact surface area, providing an instrument alignment mechanism, and providing instructions for using the base and instrument alignment mechanism including;
placing the base on the patient surface, positioning the instrument alignment mechanism on the base, and locking the instrument alignment mechanism into position establishing a repeatable trajectory for the insertion of surgical instruments. - View Dependent Claims (23, 24)
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Specification