Patents by Inventor Ralph Howald
Ralph Howald has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8632601Abstract: The invention relates to an implant for relieving damaged areas of the surfaces of hip or shoulder joints from stress. Said implant can be introduced into the space between the joint surfaces of the condyle and the socket cooperating in the natural joint. The inventive implant is cup-shaped or cap-shaped, rests in the socket by a convex external face, and sits on the condyle by a concave internal face in the implanted state. The implant comprises at least two articulation layers which are movable relative to each other and encompass articulation surfaces that face one another in the implanted state.Type: GrantFiled: April 24, 2007Date of Patent: January 21, 2014Assignee: Zimmer, GmbHInventors: Ralph Howald, Peter Heuberger, Ulrike Trommsdorff
-
Patent number: 8394149Abstract: The invention relates to a cap-shaped implant for implanting on a prepared stump of a femoral head. The implant is in the form of a ball section, having a flat base surface and a polar axis which is arranged in a perpendicular in relation to the base surface. According to the invention, a cavity is arranged in ball section which protrudes from the base surface, said cavity is rotationally symmetrical and comprises a hollow spatial axis which is arranged below an angle (a) which is different form zero in relation to the polar axis.Type: GrantFiled: August 18, 2010Date of Patent: March 12, 2013Assignee: Zimmer, GmbHInventors: Ralph Howald, Peter Heuberger, Daniel Hertig, Job-Jan Greeve
-
Publication number: 20100312353Abstract: The invention relates to a cap-shaped implant for implanting on a prepared stump of a femoral head. The implant is in the form of a ball section, having a flat base surface and a polar axis which is arranged in a perpendicular in relation to the base surface. According to the invention, a cavity is arranged in ball section which protrudes from the base surface, said cavity is rotationally symmetrical and comprises a hollow spatial axis which is arranged below an angle (a) which is different form zero in relation to the polar axis.Type: ApplicationFiled: August 18, 2010Publication date: December 9, 2010Applicant: ZIMMER, GMBHInventors: Ralph HOWALD, Peter HEUBERGER, Daniel HERTIG, Job-Jan GREEVE
-
Patent number: 7799087Abstract: The invention relates to a cap-shaped implant for implanting on a prepared stump of a femoral head. The implant is in the form of a ball section (11), having a flat base surface (13) and a polar axis (15) which is arranged in a perpendicular in relation to the base surface (13). According to the invention, a cavity (17) is arranged in ball section (11) which protrudes from the base surface (13), said cavity (17) is rotationally symmetrical and comprises a hollow spatial axis (19) which is arranged below an angle (a) which is different form zero in relation to the polar axis (15).Type: GrantFiled: August 31, 2006Date of Patent: September 21, 2010Assignee: Zimmer GmbHInventors: Ralph Howald, Peter Heuberger, Daniel Hertig, Job-Jan Greeve
-
Publication number: 20100191246Abstract: A tool and method for implanting an acetabular cup having screw retention features.Type: ApplicationFiled: January 29, 2009Publication date: July 29, 2010Applicant: ZIMMER, GMBHInventors: Ralph Howald, Hermann Breimesser
-
Publication number: 20090187252Abstract: The invention relates to an implant for relieving damaged areas of the surfaces of hip or shoulder joints from stress. Said implant can be introduced into the space between the joint surfaces of the condyle (11) and the socket (13) cooperating in the natural joint. The inventive implant is cup-shaped or cap-shaped, rests in the socket (13) by means of a convex external face, and sits on the condyle (11) by means of a concave internal face in the implanted state. The implant comprises at least two articulation layers (15, 17) which are movable relative to each other and encompass articulation surfaces that face one another in the implanted state.Type: ApplicationFiled: April 24, 2007Publication date: July 23, 2009Applicant: ZIMMER GMBHInventors: Ralph Howald, Peter Heuberger, Ulrike Trommsdorff
-
Publication number: 20090048679Abstract: The invention relates to an implant for the relief of damaged regions of the joint surfaces of hip or shoulder joints which may be introduced into the gap between the joint surfaces of the joint head and the joint socket in the natural joint, the implant being embodied as a shell or cap which is laid in the implanted state with a convex outer surface in the joint socket and a convex inner surface sitting on the joint head. The implant has a body section forming the shell or cap with an opening and a boundary section defining the opening and the implant is made from a flexible material which may be deformed for introduction of the implant into the gap between the joint surfaces.Type: ApplicationFiled: February 2, 2007Publication date: February 19, 2009Applicant: ZIMMER GMBHInventors: Ralph Howald, Peter Heuberger, Ulrike Trommsdorff
-
Publication number: 20080221700Abstract: The invention relates to a cap-shaped implant for implanting on a prepared stump of a femoral head. The implant is in the form of a ball section (11), having a flat base surface (13) and a polar axis (15) which is arranged in a perpendicular in relation to the base surface (13). According to the invention, a cavity (17) is arranged in ball section (11) which protrudes from the base surface (13), said cavity (17) is rotationally symmetrical and comprises a hollow spatial axis (19) which is arranged below an angle (a) which is different form zero in relation to the polar axis (15).Type: ApplicationFiled: August 31, 2006Publication date: September 11, 2008Applicant: ZIMMER, GMBHInventors: Ralph Howald, Peter Heuberger, Daniel Hertig, Job-Jan Greeve
-
Publication number: 20080195221Abstract: An orthopedic implant for the partial replacement of joint surfaces. In one exemplary embodiment, the orthopedic implant includes an articular portion having a concave articular surface and a base body. The orthopedic implant may be sized to replace a small portion of the patient's natural acetabulum. In this manner, the orthopedic implant allows for the repair and/or replacement of a small portion of the articular cartilage of the acetabulum. In one exemplary embodiment, a plurality of different sized orthopedic implants may be connected together to replace a larger portion articular cartilage.Type: ApplicationFiled: January 22, 2008Publication date: August 14, 2008Applicant: ZIMMER GMBHInventors: Ralph Howald, Markus Frohlich, Christian Bruderer