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US 8,801,725 B2Granted
Instruments and methods used when repairing a defect on a tissue surface
AssigneeZimmer Orthobiologics, Inc.
InventorsRobin Ritter, Victor Zaporojan, Jizong Gao
Life of this patent
Estimating the term…
Abstract
An instrument for determining the proper orientation for repairing a defect site on a tissue surface generally comprises a shaft, a plurality of probes operatively coupled to the shaft, and at least one indicator operatively coupled to the plurality of probes. The probes are configured to extend beyond a first end of the shaft and are movable relative the shaft. The at least one indicator is configured to display the displacements of the probes relative to the first end so that the displacements of the probes may be compared. A method of using the instrument when repairing a defect on a tissue surface is also disclosed.
Claims30
An instrument for determining the proper orientation for repairing a defect site on a tissue surface, comprising:
- a shaft having a first end configured to contact the tissue surface, a second end opposite the first end, and a central bore defined by an outer wall extending between the first and second ends, the outer wall having a plurality of channels defined therein;
- a plurality of probes operatively coupled to the shaft, each probe being slidably disposed within one of the channels in the outer wall of the shaft and including a first end configured to extend past the first end of the shaft and a second end configured to be contained without the second end of the probe extending beyond the second end of the shaft;
- a biasing member operatively coupled to each of the probes, the biasing members configured to actively bias the first end of the probe past the first end of the shaft and to allow displacement of the second end of the probe within the channel in which the probe is disposed;
- and
- at least one indicator operatively coupled to the plurality of probes, the at least one indicator being configured to display the displacements of the probes relative to the first end so that the displacements of the probes may be compared.
2 more elements
An instrument for repairing a defect site on a tissue surface, comprising:
- a shaft having a first end configured to contact the tissue surface, a second end opposite the first end, and a central bore defined by an outer wall extending between the first and second ends, the outer wall having a plurality of channels defined therein;
- a plurality of probes each slidably disposed within one of the channels in the outer wall of the shaft and extending an initial distance beyond the first end, each probe being configured to move relative to the shaft so as to be displaced when the first end contacts the tissue surface;
- a biasing member operatively coupled to each of the probes, the biasing members configured to allow displacement of the probes within the channels;
- and
- a plurality of indicators corresponding to the plurality of probes, each indicator being configured to display information related to the displacement of a corresponding one of the probes when the first end of the shaft contacts the tissue surface.
2 more elements
An assembly for repairing a defect site on a tissue surface, comprising:
- a positioning instrument, comprising:
- a shaft having a first end configured to contact the surface of the tissue and a second end opposite the first end, wherein the shaft is a cannula defined by an outer wall surrounding a central bore, the outer wall having a plurality of channels defined therein;
- a plurality of probes operatively coupled to the shaft, each probe being slidably disposed within one of the channels in the outer wall of the shaft and including a first end configured to extend past the first end of the shaft and a second end configured to be contained without the second end of the probe extending beyond the second end of the shaft;
- a biasing member operatively coupled to each of the probes, the biasing members configured to actively bias the first end of the probe past the first end of the shaft and to allow displacement of the second end of the probe within the channel in which the probe is disposed;
- and
- at least one indicator operatively coupled to the plurality of probes, the at least one indicator being configured to display the displacements of the probes relative to the first end so that the displacements of the probes may be compared;
- and
- a defect preparation tool configured for displacement in the central bore of the shaft and configured to prepare the defect site for receiving an implant.
5 more elements
An assembly for repairing a defect site on a tissue surface, comprising:
- a positioning instrument, comprising:
- a shaft having a first end configured to contact the surface of the tissue and a second end opposite the first end, wherein the shaft is a cannula defined by an outer wall surrounding a central bore, the outer wall having a plurality of channels defined therein;
- a plurality of probes operatively coupled to the shaft, each probe being slidably disposed within one of the channels in the outer wall of the shaft and including a first end configured to extend past the first end of the shaft and a second end configured to be contained without the second end of the probe extending beyond the second end of the shaft;
- a biasing member operatively coupled to each of the probes, the biasing members configured to actively bias the first end of the probe past the first end of the shaft and to allow displacement of the second end of the probe within the channel in which the probe is disposed;
- at least one indicator operatively coupled to the plurality of probes, the at least one indicator being configured to display the displacements of the probes relative to the first end so that the displacements of the probes may be compared;
- and
- an implant configured to be received within the central bore of the shaft and delivered to the defect site through the central bore.
4 more elements
Dependencies are inferred from the claim text.