Other

Calcitek, Inc.

Sulzer Calcitek Inc.

Jeffrey D Lueschen

Jeffrey A Bassett

Brooks J Story

Peppo Biscarini

A self-tapping implant for implantation into bone. The implant includes multiple flutes disposed around its tapping end. Each flute includes three separate concave cavities working in conjunction to tap the bone. A first cavity provides a primary cutting edge; a second cavity provides a repository for bone chips; and a third cavity provides both cutting and storing of bone.

Self-tapping implant with multiple concave tapping channels

A dental implant assembly includes an implant for osseointegration in alveolar bone, an abutment removably attached to the implant for supporting a tooth prosthesis, and a screw received through an axial bore in the abutment and engaging a threaded bore in the implant. The implant includes an annular shoulder and a plurality of splines spaced from one another to define slots therebetween and disposed circumferentially about the opening of the threaded bore. The abutment includes an annular end face in engagement with the annular shoulder of the implant. A cylindrical recess is disposed radially inwardly of the annular end face and receives the splines of the implant therewithin. The cylindrical recess communicates with the axial bore. A plurality of circumferentially spaced axially extending splines defining slots therebetween are disposed within the cylindrical recess and are interleaved with the splines of the implant. The end faces of the splines of the abutment are recessed axially from the annular end face by an amount less than one half the axial length of the splines of the abutment to provide piloting of the splines of the implant in the cylindrical recess without generating ambiguous tactile feedback that would erroneously indicate full seating of the splines prior to the splines being rotated into full alignment.

Dental implant assembly having tactile feedback

A composite swim fin with a cantilevered heel. The cantilevered heel acts as a structural member extending to and beneath the swimmer's heel to counteract the flexure of the swim fin blade during the most powerful downward kick, This type of loading on the heel of the foot replicates the natural loading incurred on the heel of the foot during walking and reduces uncomfortable stress concentrations that might otherwise occur upon the swimmer's foot.

Composite swim fin with cantilevered heel

An o-ring attachment system with opposed convex circumferential surfaces for removable dentures to be attached to a natural or an implanted fixed root system. The o-ring attachment system can be screwed into an implanted root using a manipulating means interposed between o-ring abutment and an attachment screw. In connection therewith, a tool is provided for implanting the o-ring attachment system, the tool having a captured toroidal spring for gripping the attachment system.

O-ring attachment system for dental prosthesis

A propulsion device, the device having a saucer shaped hydroplane connected to a strap. The strap affixes the swimmer's hand to the saucer. When the swimmer engages a wave, the device provides a lifting force allowing the swimmer to hydroplane on the face of the wave.

Growing community of inventors

Carlsbad, CA, United States of America

Jeffrey D Lueschen