Orbital orthopedic reshaping and resurfacing tool designed to minimally reshape and resurface bone ends in the orthopedic surgical repair or reconstruction of hip, knee, ankle, shoulder, elbow, wrist, and other joints

• US 20100076439A1
• Filed: 03/21/2009
• Published: 03/25/2010
• Est. Priority Date: 09/23/2008
• Status: Active Grant

• Current Assignee: Edwin Burton Hatch
• Original Assignee: Edwin Burton Hatch
• Inventors: Hatch, Edwin Burton
• Granted Patent: US 8,257,357 B2
• Time in Patent Office: Days
• US Class Current: 606/79
• CPC Class Codes: A61B 17/1624 Drive mechanisms therefor
• CPC Class Codes: A61B 17/1628 Motors; Power supplies
• CPC Class Codes: A61B 17/1659 Surgical rasps, files, planes, or scrapers
• CPC Class Codes: A61B 17/1662 for particular parts of the body
• CPC Class Codes: A61B 2217/005 with suction drainage system
• CPC Class Codes: A61B 2217/007 with irrigation system

Abstract

An orbitally or lineally oscillating orthopedic resurfacing tool having multiple interchangeable resurfacing heads and having a sealed debris flushing system to be used for the resurfacing of bone ends in an anatomical joint in preparation for the installation of prosthetic components in the orthopedic surgical repair or reconstruction of the hip, knee, ankle, shoulder, elbow, wrist, and other joints.

Claims

1. An orbitally or lineally oscillating orthopedic resurfacing tool used to resurface bone ends in the orthopedic surgical repair or reconstruction of hip, knee, ankle, shoulder, elbow, wrist, or other joints in preparation for the installation of corrective prosthetic components comprising:

a motor housing containing a battery or power-pack driven electric motor or air driven pneumatic motor which rotates a shaft having an eccentric end with a bearing mounted there on;

a removable and replaceable cutting head having a cutting or sanding surface mounted onto the said bearing which is mounted onto the eccentric end of the rotated shaft so as to orbitally or lineally oscillate the said cutting head to resurface a bone end so as to be fitted with an intended prosthesis;

the said removable and replaceable cutting head being flexibly located and retained by a removable and replaceable elastomeric cover which said removable and replaceable elastomeric cover fits onto and is located by the motor housing;

the said removable and replaceable cutting head being replaceable by one of many interchangeable and replaceable sanding or cutting heads each of which is specifically shaped so as to resurface a unique bone end in the hip, knee, ankle, shoulder, elbow, wrist, or other joints and each of which other removable and replaceable cutting heads is flexibly located and retained by a similar but unique removable and replaceable elastomeric cover;

the said removable and replaceable elastomeric cover incorporating a containment cup which is designed to seal against the bone end to be resurfaced so as to contain the debris created in the bone resurfacing process;

the said removable and replaceable elastomeric cover also incorporating an in-coming water tube and an outgoing water tube for the purpose of flushing out the bone debris collected and contained between the said containment cup and the said bone end during the orthopedic bone resurfacing process;

2. A version of claim 1 where in the many said interchangeable and replaceable sanding or cutting heads are attached, retained, and flexibly located by metal springs or by elastomeric springs or other elastomeric structures to the said removable and replaceable elastomeric cover or to the said motor housing.

3. A version of claim 1 in which each said removable and replaceable cutting heads consists of a removable and replaceable cover component having a cutting or sanding surface being so shaped as to fit tightly onto a base head component of a matching shape and which combination is specifically shaped so as to resurface a unique bone end in the hip, knee, ankle, shoulder, elbow, wrist, or other joints.

Because many varying and different embodiments may be made within the scope of the invention herein taught and because modifications may be made in the embodiment herein detailed in accordance with the descriptive requirements of the law, it is to be understood that details herein are to be interpreted as illustrative and not limiting.