Surgery – Instruments – Orthopedic instrumentation
Reexamination Certificate
1999-09-01
2001-03-13
Philogene, Pedro (Department: 3732)
Surgery
Instruments
Orthopedic instrumentation
C606S057000, C606S060000, C606S078000, C433S173000
Reexamination Certificate
active
06200324
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to method and apparatus for preparing a socket and more particularly to providing a method and apparatus which forms a socket of substantially uniform size and shape preparatory to receiving an implant which may be augmentable bone or a transplant.
BACKGROUND OF THE INVENTION
There are a number of situations requiring implantation of a prosthesis. As one particular example, when it becomes necessary to remove a diseased tooth, it is typically replaced with a prosthesis. For the last fifteen years implantologists have been resigned to adapting to an oral cavity from which the diseased tooth has been removed. The existing situation has led to a non-consistent predictability as to such implantations which result from the following five factors:
1. the competency of the doctor (implantologist or prosthodontist);
2. the availability of bone and the proper configuration thereof;
3. the patient's immunological system and habits that may contribute to accelerated breakdown;
4. the compliance of the patient including the immune system function which will be handled holistically.
5. non-predictable bone augmentation procedures.
The method and apparatus of the present invention serves to assure significantly more consistent predictability by providing a tool, for orthopedic use, which enhances and augments deficient bone in any surgical recipient site and thereby provide ideal standards having uniform predictability which provide implantologists and all prosthodontists using the tool to provide excellent results even in compromised situations having versatile parameters, which create optimum solutions and eliminate mediocrity.
BRIEF DESCRIPTION OF THE INVENTION
The tool of the present invention and its method of use provides a fully integrated, stable, aesthetic biocompatible, structurally functional device which is perfectly adaptable to each individual, is simplified in its operation and which provides significantly enhanced predictable results of augmenting and implanting. The tool is comprised of an elongated cylindrical member having a hemispheric tip. The tip and side walls are expandable by rotating power or air pressure and are controlled for expansion by an air operated pump chamber for introducing air under pressure into the tool or by a lead screw.
The region between the tip and cylindrical, expandable side walls is provided with a plurality of grip extenders which are selectively projectable in an outward radial direction to anchor the tool preparatory to the expansion operation. The tool is placed into the cavity at the extraction site or surgical site and is expanded and contracted in a repeated fashion, compressing the side walls and base of the cavity providing a socket of more uniform dimensions and a site more densely enriched with bone and blood supply and cells to give the best bond and integration. The tool is then deflated and removed from the socket which is then scanned by a scanning device for determining the shape and volume of the socket in order to establish the amount and shape of augmented bone or transplant required for optimum intimacy and retention. The augmented boned is then shaped and placed into the cavity. The anchoring member of the implant is then inserted into the augmented bone.
OBJECTS OF THE INVENTION
It is therefore one object of the present invention to provide a novel method and apparatus for preparing a site within a bone for receipt of transplant synthetic or autogenesis or implant.
Another object of the present invention is to provide a novel tool for preparing a site for an implant having the capability of compressing bone within the cavity of the site to provide a more uniform socket for receipt of an implant which significantly enhances the precision placement of the implant or existing size or a scan and cut of a prosthetic component to fit on site.
REFERENCES:
patent: 4787848 (1988-11-01), Ross
patent: 5051091 (1991-09-01), Rosenfeld
patent: 5310408 (1994-05-01), Schryver et al.
patent: 5686116 (1997-11-01), Bockman et al.
patent: 5704938 (1998-01-01), Staehlin et al.
patent: 5797741 (1998-08-01), Bonpard et al.
patent: 6033412 (2000-03-01), Losken et al.
Philogene Pedro
Volpe and Koenig. P.C.
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