Tubular member having a passage and opposed bone contacting extensions
First Claim
1. An apparatus for use in human surgery, comprising:
- a tubular member having a proximal end, a distal end opposite said proximal end, a passage for providing protected access to a surgical site from said proximal end to said distal end, and a mid-longitudinal axis through said proximal and distal ends, said passage having a minimum width transverse to the mid-longitudinal axis; and
at least two opposed extensions extending from said distal end of said tubular member, said extensions each having a length and a maximum height perpendicular to the length, the maximum height of each of said extensions being less than the length of each extension and greater than one-half the minimum width of said passage, each of said extensions having an interior surface at least in part facing the mid-longitudinal axis of said tubular member, said interior surfaces of said extensions being spaced apart from one another along the length of each extension a distance no less than the minimum width of said passage, each of said extensions having opposed bone contacting surfaces configured to contact portions of bone.
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Accused Products
Abstract
An apparatus for use in human surgery has a tubular member with a passage for providing protected access to a surgical site. The passage has a minimum width transverse to the mid-longitudinal axis of the tubular member. Two opposed extensions extend from the distal end of the tubular member. The extensions each have a length and a maximum height perpendicular to the length. The maximum height of the extensions are less than the length of each extension and greater than one-half the minimum width of the passage. Each extension has an interior surface at least in part facing the mid-longitudinal axis of the tubular member. The interior surfaces of the extensions are spaced apart from one another along the length of each extension a distance no less than the minimum width of the passage. Each extension has opposed bone contacting surfaces configured to contact portions of bone.
135 Citations
29 Claims
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1. An apparatus for use in human surgery, comprising:
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a tubular member having a proximal end, a distal end opposite said proximal end, a passage for providing protected access to a surgical site from said proximal end to said distal end, and a mid-longitudinal axis through said proximal and distal ends, said passage having a minimum width transverse to the mid-longitudinal axis; and
at least two opposed extensions extending from said distal end of said tubular member, said extensions each having a length and a maximum height perpendicular to the length, the maximum height of each of said extensions being less than the length of each extension and greater than one-half the minimum width of said passage, each of said extensions having an interior surface at least in part facing the mid-longitudinal axis of said tubular member, said interior surfaces of said extensions being spaced apart from one another along the length of each extension a distance no less than the minimum width of said passage, each of said extensions having opposed bone contacting surfaces configured to contact portions of bone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification