Device for creating a void space in a living tissue, the device including a handle with a control knob that can be set regardless of the orientation of the handle
First Claim
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1. A device for creating a cavity or a channel in bone, the device including:
- a handle shaped to be held with a single hand, wherein said handle has opposed side surfaces, at least one bridge surface that extends between said side surfaces, and a notch that extends inwardly from said opposed side surfaces and said bridge surface, wherein said handle is formed to define a channel that extends between opposed proximal and distal ends of said handle;
a shaft movably coupled to said handle so as to be selectively extended and retracted, said shaft being straight and having a proximal end seated within said handle and a distal end located forward of said handle;
a flexible elbow at said distal end of said shaft and formed from a superelastic shape memory material configured to assume a curved shape;
a tip located forward of said flexible elbow and configured to create a void or channel in the bone against which said tip is pressed or pushed, wherein said tip is movable from a position in which a longitudinal axis of said tip is substantially in registration with a longitudinal axis of said shaft, and a position in which the longitudinal axis of said tip is angled relative to the longitudinal axis of said shaft; and
a control assembly operably coupled to said shaft and including a manually actuated knob that is rotatably mounted to said handle, and a drive member that is disposed in said channel and configured to engage said knob, wherein said handle and said drive member are collectively dimensioned so that said drive member can move proximally to distally through said channel with structural components of said handle preventing rotational movement of said drive member in said channel, wherein said control assembly is configured to, based on the rotation of said knob, result in the proximal to distal translational movement of said drive member in said channel and selectively extend said shaft relative to said handle such that a proximal-to-distal length of said device increases and a proximal portion of said shaft previously seated within said handle is exposed, and wherein, said knob being mounted to said handle so as be disposed in said notch of said handle so as to rotate in a plane that is static relative to the handle and said handle and said knob are collectively dimensioned so that a continuous arcuate section of said knob extends outwardly from both of said opposed side surfaces and said bridge surface of said handle.
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Abstract
A device for creating a void space in living tissue includes a handle from which a shaft extends. A tip is moveably attached to the distal end of the shaft. The angular position of the tip is controlled by the rotation of a knob mounted to the handle. The knob is mounted to the handle to project beyond opposed side surfaces of the handle and a surface that bridge between the side surfaces.
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Citations
18 Claims
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1. A device for creating a cavity or a channel in bone, the device including:
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a handle shaped to be held with a single hand, wherein said handle has opposed side surfaces, at least one bridge surface that extends between said side surfaces, and a notch that extends inwardly from said opposed side surfaces and said bridge surface, wherein said handle is formed to define a channel that extends between opposed proximal and distal ends of said handle; a shaft movably coupled to said handle so as to be selectively extended and retracted, said shaft being straight and having a proximal end seated within said handle and a distal end located forward of said handle; a flexible elbow at said distal end of said shaft and formed from a superelastic shape memory material configured to assume a curved shape; a tip located forward of said flexible elbow and configured to create a void or channel in the bone against which said tip is pressed or pushed, wherein said tip is movable from a position in which a longitudinal axis of said tip is substantially in registration with a longitudinal axis of said shaft, and a position in which the longitudinal axis of said tip is angled relative to the longitudinal axis of said shaft; and a control assembly operably coupled to said shaft and including a manually actuated knob that is rotatably mounted to said handle, and a drive member that is disposed in said channel and configured to engage said knob, wherein said handle and said drive member are collectively dimensioned so that said drive member can move proximally to distally through said channel with structural components of said handle preventing rotational movement of said drive member in said channel, wherein said control assembly is configured to, based on the rotation of said knob, result in the proximal to distal translational movement of said drive member in said channel and selectively extend said shaft relative to said handle such that a proximal-to-distal length of said device increases and a proximal portion of said shaft previously seated within said handle is exposed, and wherein, said knob being mounted to said handle so as be disposed in said notch of said handle so as to rotate in a plane that is static relative to the handle and said handle and said knob are collectively dimensioned so that a continuous arcuate section of said knob extends outwardly from both of said opposed side surfaces and said bridge surface of said handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device for creating a cavity or a channel in bone, said device including:
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a handle shaped to be held with a single hand; a shaft movably coupled to said handle so as to be selectively extended and retracted relative to said handle, said shaft being straight and having a proximal end seated within said handle and a distal end located forward of said handle; a flexible elbow at said distal end of said shaft and formed from a superelastic shape memory material; a tip configured to create a void or channel in the bone, wherein said superelastic shape memory material is configured to flex said flexible elbow to move said tip radially away from a longitudinal axis of said shaft; a control assembly operably coupled to said shaft and comprising a manually actuated knob that is rotatably mounted to said handle, wherein said control assembly is configured to, based on rotation of said manually actuated knob, selectively extend said shaft relative to said handle such that a proximal-to-distal length of said device increases and a proximal portion of said shaft previously seated within said handle is exposed from said handle; and indicia disposed on said proximal portion of said shaft such that, as said shaft is selectively extended relative to said handle, said indicia are exposed to determine an extent of extension. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A device for creating a cavity or a channel in bone, said device including:
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a handle shaped to be held with a single hand and comprising an opening; a shaft movably coupled to said handle so as to be selectively extended and retracted through said opening in said handle, said shaft having a proximal end seated within said handle, and a distal end opposite said proximal end and located forward of said handle; a tip located forward of said distal end of said shaft and configured to create a void or channel in the bone; a control assembly connected to said shaft and comprising a manually actuated knob that is rotatably mounted to said handle and configured to selectively extend and retract said shaft relative to said handle, said knob being mounted to said handle so as to rotate in a plane that is static relative to said handle; and indicia disposed on a proximal portion of said shaft near said proximal end such that, as said shaft is selectively extended relative to said handle, at least one of said indicia is exposed from within said handle to determine an extent of extension. - View Dependent Claims (17, 18)
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Specification