Medical Device
AssigneesSmith & Nephew, Inc., River Park, Billet Lane
InventorsDerek Mcminn, Charles Desoutter, Matthew Gooch
Life of this patent
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Abstract
An attachment for a surgical instrument, comprising: a drive input hub for connecting, in use, to a power source; a drive output hub for connecting, in use, to a surgical instrument; and a body connecting the drive input hub to the drive output hub, the body comprising means for transferring drive from the input hub to the output hub, wherein the body, the drive input hub and the drive output hub are at least in part not coaxial. A method for surgically preparing a bone using such an attachment.
Claims28
An attachment for a surgical instrument, comprising:
- a drive input hub for connecting, in use, to a power source;
- a drive output hub for connecting, in use, to a surgical instrument;
- and
- a body connecting the drive input hub to the drive output hub, the body comprising means for transferring drive from the input hub to the output hub, wherein the body, the drive input hub and the drive output hub are at least in part not coaxial.
An attachment according to any preceding claim, wherein the means for transferring drive from the input hub to the output hub comprises a series of drive shafts and bevel gears, the drive shafts being angularly disposed with respect to each other.
An attachment according to any preceding claim, wherein the diameter of the body is between 20 and 40 mm.
An attachment according to any preceding claim, wherein the body is made of aluminium.
An attachment according to any preceding claim, wherein the surgical instrument is a cutting device.
An attachment according to any preceding claim, wherein the drive input hub and the drive output hub are coaxial.
An attachment according to any preceding claim, wherein the power source is a rotary drive source.
A method for surgically preparing a bone, comprising the steps of:
- providing an attachment for a surgical instrument comprising a drive input hub connectable to a power source, a drive output hub connectable to a surgical instrument, and a body connecting the drive input hub to the drive output hub, the body comprising means for transferring drive from the input hub to the output hub, wherein the body, the drive input hub and the drive output hub are at least in part not coaxial;
- providing a surgical instrument for machining a surface of the bone;
- connecting the surgical instrument to the drive output hub;
- providing a power source;
- connecting the power source to the drive input hub;
- inserting the surgical instrument and attachment through an incision in the patient;
- positioning the surgical instrument against a bone surface while positioning the attachment around intervening anatomy;
- and
- driving the surgical instrument to machine the bone surface.
An attachment for a surgical instrument substantially as hereinbefore described with reference to the drawings.
A reamer for surgically preparing a bone substantially as hereinbefore described with reference to the drawings.
A method for surgically preparing a bone substantially as hereinbefore described with reference to the drawings.
Dependencies are inferred from the claim text.