This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Benefits of technology
[0005] This invention extends and, in certain instances, improves upon, apparatus and methods disclosed and claimed in U.S. Pat. No. 5,716,361, which relates to combination trial/cutting guides, and methods of using the same, in various orthopedic joint situations such as
Problems solved by technology
Cutting blocks are also typically used in revision procedures, though bone deficiency often renders stabilization of the block impossible.
Though such approache
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0018] The present invention extends and, in certain instances, improves upon apparatus and methods disclosed and claimed in U.S. Pat. No. 5,716,361, which issued Feb. 10, 1998, entitled BONE CUTTING GUIDES FOR USE IN THE IMPLANTATION OF PROSTHETIC JOINT COMPONENTS. Accordingly, the entire contents of this patent are incorporated herein by reference. Broadly, the '361 patent relates to combination trial / cutting guides, and methods of using the same, in various orthopedic joint situations such as the knee, hip, shoulder, and other areas of the body. The apparatus resides in a shaped body having an inner surface adapted for temporary placement against a bone surface and an outer surface configured to co-act in a joint, for example, as part of a trial reduction. The present invention is directed toward apparatus and surgical techniques which augment or supplant certain teachings of the '361 patent with respect to alternative cutting fixtures and resection accuracy and stability. The va...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
Apparatus and surgical techniques provide alternative cutting fixtures and other features to improve bone resection accuracy and joint stability. According to one embodiment, stabilizers are removably attached to a cutting guide to temporarily lengthen the surface against which a saw or other cutting device rests. Another embodiment provides differently shaped saw blades, having curved distal ends and right-angle bends applicable to box cuts of the type associated with cruciate sacrifice knee-replacement surgery. Methods are also disclosed whereby the box cuts, distal and posterior augment cuts may be approached from a distal perspective, both laterally and medially. A different embodiment provides a trial/cutting guide having flat surfaces as opposed to curved surfaces adapted for articulation within a joint. Yet a further alternative embodiment teaches a device for determining the joint line relative to a tibia using the fibula as reference.
Description
REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation of U.S. patent application Ser. No. 10 / 308,046, filed Dec. 2, 2002; which is a divisional of U.S. patent application Ser. No. 09 / 159,168, filed Sep. 23, 1998, now U.S. Pat. No. 6,488,687; which claims priority of U.S. provisional patent application Ser. No. 60 / 059,804, filed Sep. 23, 1997. U.S. patent application Ser. No. 10 / 308,046 is also a continuation-in-part of U.S. patent application Ser. No. 09 / 300,665, filed Apr. 27, 1999, now U.S. Pat. No. 6,602,259, which is a continuation of U.S. patent application Ser. No. 08 / 937,216, filed Sep. 18, 1997, now U.S. Pat. No. 5,897,559, the entire content of all of which are incorporated herein by reference.FIELD OF THE INVENTION [0002] This invention concerns arthroplasty, and, more particularly, resides in improved cutting guides and techniques to better assist a surgeon in preparing a bone, for example, to receive an implant. BACKGROUND OF THE INVENTION [0003] Wh...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more