Surgical instrumentation and method for forming a passage in bone having an enlarged cross-sectional portion
First Claim
1. A surgical method, comprising:
- providing a surgical instrument including an elongate member and at least one cutting element engaged with the elongate member and being transitionable between a retracted configuration and an expanded configuration, wherein the elongate member defines a tapping thread; and
using said cutting element in said retracted configuration to form a passage in bone, wherein the using said cutting element in said retracted configuration comprises tapping at least a portion of the passage to form a threaded region of the passage;
displacing the cutting element along the passage while in the retracted configuration;
transitioning the cutting element to the expanded configuration by positioning the cutting element laterally beyond an outer profile of the tapping thread wherein the cutting element extends laterally outward from the tapping thread; and
enlarging a portion of the threaded region of the passage by rotating the cutting element about a longitudinal axis of the surgical instrument to form an enlarged cross-sectional portion of the threaded region of the passage; and
transitioning the cutting element to the retracted configuration and removing the surgical instrument from the passage.
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Abstract
A surgical instrument and method for forming a passage in bone having an enlarged cross-sectional portion is provided. The instrument includes an elongate member and a cutting element engaged thereto and transitionable between a retracted configuration for extending through a first portion of the passage and an expanded configuration for forming a second portion of the passage having an enlarged cross-section. In one embodiment, the cutting element is transitioned between the retracted and expanded configurations by axially displacing the cutting element relative to the elongate member. In another embodiment, the elongate member includes a tapping thread configured to cut threads along the first portion of the passage, and the cutting element is a blade configured to form the enlarged cross-section when transitioned to the expanded configuration. In another embodiment, the cutting element is arranged in an axial orientation when in the retracted configuration and an angular orientation when in the expanded configuration.
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Citations
34 Claims
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1. A surgical method, comprising:
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providing a surgical instrument including an elongate member and at least one cutting element engaged with the elongate member and being transitionable between a retracted configuration and an expanded configuration, wherein the elongate member defines a tapping thread; and using said cutting element in said retracted configuration to form a passage in bone, wherein the using said cutting element in said retracted configuration comprises tapping at least a portion of the passage to form a threaded region of the passage; displacing the cutting element along the passage while in the retracted configuration; transitioning the cutting element to the expanded configuration by positioning the cutting element laterally beyond an outer profile of the tapping thread wherein the cutting element extends laterally outward from the tapping thread; and enlarging a portion of the threaded region of the passage by rotating the cutting element about a longitudinal axis of the surgical instrument to form an enlarged cross-sectional portion of the threaded region of the passage; and transitioning the cutting element to the retracted configuration and removing the surgical instrument from the passage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A surgical method, comprising:
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providing a surgical instrument including a tapping element and an expandable element; tapping at least a portion of a passage in bone using the tapping element to form a threaded region of the passage; displacing the expandable element along the passage while in a retracted configuration; and transitioning the expandable element to an expanded configuration by positioning the expandable element laterally beyond an outer profile of the tapping element wherein the cutting element extends laterally outward from the tapping element; and enlarging a portion of the threaded region of the passage by rotating the expandable element about a longitudinal axis of the surgical instrument to form an enlarged cross-sectional portion of the threaded region of the passage. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A surgical method, comprising:
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providing a surgical instrument including a tapping element and an expandable element; tapping at least a portion of a passage in bone using the tapping element to form a threaded region of the passage; displacing the expandable element along the passage while in a retracted configuration; and transitioning the expandable element to an expanded configuration and enlarging a cross-sectional portion of the threaded region of the passage; and wherein the expandable element comprises a cutting element pivotally coupled to the surgical instrument, the cutting element being aligned in an axial orientation when in the retracted configuration; and wherein the transitioning of the cutting element to the expanded configuration comprises pivoting the cutting element to an angular orientation.
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27. A surgical method, comprising:
- forming a passage in bone;
cutting threads along at least a portion of the passage to form a threaded region of the passage, and enlarging a cross-sectional portion of the threaded region of the passage laterally adjacent the threads;
wherein the cutting is performed using a tapping element and wherein the enlarging is performed using an expandable element;
displacing the expandable element along the passage while in a retracted configuration; and
transitioning the expandable element to an expanded configuration to provide the enlarging by positioning the expandable element laterally beyond an outer profile of the tapping element wherein the expandable element extends laterally outward from the tapping element, and by rotating the expandable element about a longitudinal axis. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
- forming a passage in bone;
Specification