Implant for attaching a substitute tooth or the like to a jaw

• US 5,306,149 A
• Filed: 07/06/1992
• Issued: 04/26/1994
• Est. Priority Date: 07/15/1991
• Status: Expired due to Fees

• Current Assignee: Institut Straumann AG (Straumann Holding AG)
• Original Assignee: Institut Straumann AG (Straumann Holding AG)
• Inventors: Lang, Niklaus P., Hammerle, Christoph, Sutter, Francis J., Schmid, Jurg
• Primary Examiner(s): Mancene, Gene
• Assistant Examiner(s): Lucchesi, Nicholas D.
• Application Number:
  US07/909,559
• Time in Patent Office: 659 Days
• Field of Search: 433/173, 433/174, 433/175, 433/176
• US Class Current: 433/173
• CPC Class Codes: A61B 17/58 for osteosynthesis, e.g. bone plates, screws , setting implements or the like A61B17/14, A61B17/16 take precedence
• CPC Class Codes: A61C 8/0031 Juxtaosseous implants, i.e. implants lying over the outer surface of the jaw bone
• CPC Class Codes: A61L 31/022 Metals or alloys
• CPC Class Codes: A61L 31/048 obtained by reactions only involving carbon-to-carbon unsaturated bonds A61L31/041 takes precedence
• CPC Class Codes: C08L 27/14 Homopolymers or copolymers of vinyl fluoride
• CPC Class Codes: C08L 27/18 Homopolymers or copolymers or tetrafluoroethene

Abstract

A implant is disclosed particularly for jawbone, comprising a diaphragm and a carrier having an elongated column-like central portion and a frame supporting the central portion, as well as spikes for anchoring the carrier into the jawbone. An intermediate piece for fastening the diaphragm at the end of the central portion are also disclosed. The implant facilitates favorable conditions for growth of the bone tissue so that bone material grows into a space covered by the diaphragm due to the solid anchoring of the implant into the jawbone.

Claims

1. An implant for attaching a substitute tooth or the like onto a jaw or the like, comprising:

a carrier having a central portion and containing a threaded bore;

a diaphragm covering said carrier and enabling bone formation;

a frame surrounding said central portion of the carrier, wherein said frame, further comprises;

a base formed by transverse ribs;

longitudinal ribs;

at least four cross-ties extending from the base edge; and

at least two spikes on said carrier for fastening the implant into the jawbone.

2. The implant of claim 1, further comprising cams and cross-ties on the carrier, wherein said cams are intended to come to rest upon the jawbone and wherein said diaphragm is fastened onto the side of the central portion.

3. The implant of claim 2, wherein said diaphragm comprises a flexible porous material such as polytetrafluoroethylene.

4. The implant of claim 3, wherein the carrier comprises a single piece casting.

5. The implant of claim 4, further comprising an intermediate piece for fastening the diaphragm to the carrier.

6. The implant of claim 5, further comprising a screw for fastening the diaphragm to the carrier.