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US 2018/0008285 A1Published application
Microfracture apparatuses and methods
AssigneeArthrosurface Incorporated
InventorsGeorge J. SIKORA, Steven EK, Steven TALLARIDA
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for microfracture (e.g., forming a plurality of microfractures in a bone to encourage cartilage regeneration). Some of the present apparatuses and methods are configured to create microfractures with smaller transverse dimensions (e.g., diameters) and greater depths than previously known. Some of the present apparatuses and methods comprise a penetrator removal tab coupled to the penetrator and configured to retract the penetrator relative to the cannula.
Claims21
1-20. (canceled)
An apparatus comprising:
- a cannula having a first end, a second end, and a channel extending between the first end and the second end;
- a penetrator having a distal end and a first transverse dimension of less than 1.2 millimeters (mm), the penetrator configured to be disposed in the channel of the cannula such that the penetrator is movable between a retracted position and an extended position in which the distal end extends beyond the second end of the cannula by a penetration distance of at least 5 mm;
- a penetrator removal tab coupled to the penetrator and configured to retract the penetrator relative to the cannula;
- and
- an enlarged head coupled to the penetrator;
- where the penetrator is configured to be moved from the retracted position to the extended position substantially without rotation of the penetrator to form a microfracture having a depth of at least 5 mm;
- and
- where:
- the cannula includes a handle,
- the penetrator removal tab includes an opening that has at least one transverse dimension that is smaller than a transverse dimension of the enlarged head, and
- the penetrator removal tab is configured to be disposed between the handle and the enlarged head with the penetrator extending through the opening.
8 more elements
An apparatus comprising:
- a cannula having a first end, a second end, and a channel extending between the first end and the second end;
- a penetrator having a distal end and a first transverse dimension of less than 1.2 millimeters (mm), the penetrator configured to be disposed in the channel of the cannula such that the penetrator is movable between a retracted position and an extended position in which the distal end extends beyond the second end of the cannula by a penetration distance of at least 5 mm;
- a penetrator removal tab coupled to the penetrator and configured to retract the penetrator relative to the cannula;
- and
- an enlarged head coupled to the penetrator;
- where the penetrator is configured to be moved from the retracted position to the extended position substantially without rotation of the penetrator to form a microfracture having a depth of at least 5 mm;
- and
- where:
- the cannula includes a handle,
- the penetrator removal tab includes an opening that has at least one transverse dimension that is smaller than a transverse dimension of the enlarged head, and
- the penetrator removal tab is configured to be disposed between the handle and the enlarged head with the penetrator extending through the opening.
8 more elements
An apparatus comprising:
- a cannula having a first end, a second end, and a channel extending between the first end and the second end;
- a penetrator having a distal end and a first transverse dimension, the penetrator configured to be disposed in the channel of the cannula such that the penetrator is movable between a retracted position and an extended position in which the distal end extends beyond the second end of the cannula by a penetration distance that is at least 5 times greater than the first transverse dimension of the penetrator;
- a penetrator removal tab coupled to the penetrator and configured to retract the penetrator relative to the cannula;
- and
- an enlarged head coupled to the penetrator;
- where the penetrator is configured to be moved from the retracted position to the extended position substantially without rotation of the penetrator to form a microfracture having a depth that is at least 5 times greater than the first transverse dimension of the penetrator;
- and
- where:
- the cannula includes a handle,
- the penetrator removal tab includes an opening that has at least one transverse dimension that is smaller than a transverse dimension of the enlarged head, and
- the penetrator removal tab is configured to be disposed between the handle and the enlarged head with the penetrator extending through the opening.
8 more elements
Dependencies are inferred from the claim text.