Interphalangeal fusion implant
AssigneeAscension Orthopedics, Inc.
InventorsPerry Forrester, Joshua Scott
Life of this patent
Estimating the term…
Abstract
An interphalangeal fusion implant comprising a threaded shank and a head, the head having a body portion having first and second laterally spaced fins, each of which has a plurality of axially spaced serrations, some of the serrations terminating at the laterally outermost ends at substantial single points. A driver for implanting an interphalangeal fusion implant comprising an elongate body, a receiving formation having at least two radially extending outward projections, and a pear shaped portion extending along a central axis of the body. A method of fusing a first phalanx and a second phalanx using an interphalangeal fusion implant.
Claims22
A surgical implant, comprising:
- a threaded shank;
- a head, said head comprising a body portion proximate said shank and a nose portion distal said shank, said body portion having at least two laterally outwardly projecting fins, each of said fins comprising a plurality of axially spaced serrations, at least some of said serrations being tapered in two dimensions such that they terminate at their laterally outermost ends at substantial single discrete points;
- and
- a cannula extending through said shank and said head, said cannula adapted to receive a K-wire whereby said implant can be used to conduct interphalangeal surgery.
A surgical implant, comprising:
- a threaded shank;
- a head, said head comprising a body portion proximate said shank and a nose portion distal said shank, said body portion having at least two laterally outwardly projecting fins, each of said fins comprising a plurality of axially spaced serrations, at least some of said serrations being tapered in two dimensions such that they terminate at their laterally outermost ends at substantial single discrete points, said head being angled relative to a longitudinal axis extending through said shank;
- and
- a straight cannula extending through said shank and said head, said straight cannula adapted to receive a K-wire whereby said implant can be used to conduct interphalangeal surgery.
A system for implanting a surgical implant, said system comprising:
- an implant, said implant comprising:
- a threaded shank;
- a head, said head comprising a body portion proximate said shank and a nose portion distal said shank, said body portion having at least two laterally outwardly projecting fins, each of said fins comprising a plurality of axially spaced serrations, at least some of said serrations being tapered in two dimensions such that they terminate at their laterally outermost ends at substantial single discrete points, said head being angled relative to a longitudinal axis extending through said shank;
- a straight cannula extending through said shank and said head and said head, said straight cannula adapted to receive a K-wire whereby said implant can be used to conduct interphalangeal surgery;
- a driver for driving said implant, said driver comprising:
- a body having a first end, a second end, a longitudinally extending, generally central axis, and an opening in open communication with a receiving formation formed in and extending generally longitudinally into said body, said receiving formation having at least two radially outwardly extending portions offset from said central axis of said body and a pear shaped portion along said central axis of said body;
- and
- a K-wire, said K-wire extending through said cannula and into said driver.
Dependencies are inferred from the claim text.