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The Silent Hip Lateral Clamp

IP.com Disclosure Number: IPCOM000109271D
Publication Date: 2005-Mar-23
Document File: 3 page(s) / 4M

Publishing Venue

The IP.com Prior Art Database

Abstract

The Silent Hip Lateral Clamp provides an accurate positioning guide for reaming, establishing the angle between the femoral neck and femoral shaft and also providing a guide for the anteversion angle. Though the existing Silent Hip lateral clamp provides an accurate positioning guide for reaming, it does pose a problem for surgeons, as there is no securing of the instrument to the femur, thus making the initial drilling more difficult. This will be made much more of a problem with a proposed design to replace the lateral plate with a simple hook, due to surgeon requests.

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Discussion of most relevant prior art (whether in literature, patent document, commercial product etc).

Discussion of technical problems in prior art, which is addressed by the invention.

The Silent Hip Lateral Clamp provides an accurate positioning guide for reaming, establishing the angle between the femoral neck and femoral shaft and also providing a guide for the anteversion angle.

Though the existing Silent Hip lateral clamp provides an accurate positioning guide for reaming, it does pose a problem for surgeons, as there is no securing of the instrument to the femur, thus making the initial drilling more difficult. This will be made much more of a problem with a proposed design to replace the lateral plate with a simple hook, due to surgeon requests.

Discussion of the solution to the problem, which the invention provides

To modify the existing Silent Hip axis finder to add a clamping mechanism.

 

The modification to the existing Lateral Clamp is a device that enables fast, easy, controlled securing of the clamp to the femur. Without enlarging the incision, and also retaining the ability to be easily disassembled and cleaned. This clamping mechanism could also readily be used in a number of other applications.

A number of alternatives were considered such as spring loading, threading before this solution found. The problem with a sprung solution is that it always acts and cannot be controlled by the user. Other mechanisms such as a full thread do not allow quick application and release.

Key Benefits of this solution are:

·         Securing axis finder to the femur

·         More control when drilling

·         Rapid movement to initial position

·         High clamping force with mechanical advantage of thread mechanism.

·         Quick release once finished.

·         Clamp is engaged / disengaged when surgeon wants (unlike spring load)

·         Easily disassembled / re-assembled for cleaning

Variations on features used in the solution to the problem

 

  • Shape and form of key handle - ergonomics
  • Chan...