# US 8,771,361 B2 · Arrangement for increasing the stress resistance of implants and one such implant > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,771,361 B2 - Document ID: US8771361B2 - Status: Granted - Kind: B2 - Application number: 12/236,903 - Filed: 2008-09-24 - Published: 2009-01-22 - Granted: 2014-07-08 - Earliest claimed: 2002-07-25 - Assignees: Nobel Biocare Services AG - Applicants: Jan Hall - Inventors: Jan Hall - Web page: https://patentgrep.com/patent/US8771361B2 ## CPC - A61C 8/0015: {being a conversion layer, e.g. oxide layer} - A61C 8/0012: {characterised by the material or composition, e.g. ceramics, surface layer, metal alloy (use of specific materials A61K6/00)} - A61C 8/0013: {with a surface layer, coating} - A61C 8/0022: {Self-screwing (A61C8/0028 takes precedence)} - A61C 8/0092: {for sinus lifting} - A61L 27/227: {Other specific proteins or polypeptides not covered by A61L27/222, A61L27/225 or A61L27/24} - A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00) - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) ## Abstract An arrangement and an implant are provided for increasing the stress resistance of the implant arranged in an upper jaw bone. The implant has access via parts to the sinus cavity. At said parts, the implant is arranged with a convex or rounded front surface which, upon access, lifts the sinus mucous membrane, without piercing the latter, and thus forms a closed space between the parts and the underside of the mucous membrane. The implant is provided, at least at said parts, with growth-stimulating substance or substances which interact with cell-containing body fluid which penetrates or has penetrated into the space, so that new bone is formed around said parts of the implant. ## Claims ### Claim 1 A method of using an implant in a sinus cavity of a patient comprising: obtaining an implant having a length, an outer surface at least partially coated with a growth stimulating substance (GSS), and a rounded front part having a polished part and configured to pass through an upper jaw bone of the patient and to push but not pierce a mucous membrane adjacent the sinus; forming a hole in the upper jaw bone adjacent the sinus cavity of the patient; inserting the implant through the formed jaw bone hole such that the partially coated portion of the outer surface extends beyond the formed hole and into the sinus cavity; pushing the mucous membrane of the sinus cavity with the rounded front part of the implant so as to lift the mucous membrane from a surface of the upper jaw bone and to form a space between the surface of the upper jaw bone and the pushed mucous membrane; and allowing the GSS to be released from the partially coated portion of the outer surface of the implant and to interact with fluids deposited in the space so as to form new bone in the space; wherein the rounded front part has a front surface and the front surface comprises the polished part and is designed with a surface roughness or porous layer at sides thereof, and the surface roughness or porous layer functions as a reservoir for layers of GSS. ### Claim 2 (depends on 1) The method of claim 1, further comprising: securing the implant to the upper jaw bone after said inserting the implant through the jaw bone hole. ### Claim 3 (depends on 2) The method of claim 2, wherein the implant further comprises an anchor configured for said securing the implant to the upper jaw bone. ### Claim 4 (depends on 1) The method of claim 1, wherein the GSS released from the partially coated portion of the outer surface of the implant is at least one member selected from the group consisting of matrix molecules, growth factors, differentiation factors, and growth-stimulation peptides. ### Claim 5 (depends on 1) The method of claim 1, wherein at least a portion of the outer surface of the implant is porous and configured to store the GSS therein. ### Claim 6 (depends on 5) The method of claim 5, wherein porous outer surface of the implant comprises a porous oxide layer. ### Claim 7 (depends on 1) The method of claim 1, further comprising: separating the mucous membrane from the surface of the upper jaw bone prior to said pushing the mucous membrane with the front part of the implant. ### Claim 8 (depends on 7) The method of claim 7, wherein said separating the mucous membrane from the surface of the upper jaw bone comprises: inserting a membrane separation instrument through the jaw bone hole and adjacent to the mucous membrane; and rotating the membrane separation instrument in its inserted position so as to separate the mucous membrane from the surface of the upper jaw bone. ### Claim 9 (depends on 1) The method according to claim 1, further comprising depositing the fluids in said space. ### Claim 10 (depends on 1) The method according to claim 1, wherein the implant further comprises one or more outer threads, and wherein the GSS is only at a side of a tip of the implant. ### Claim 11 (depends on 10) The method according to claim 10, further comprising: securing the implant to the upper jaw bone after said inserting the implant through the jaw bone hole, wherein the implant further comprises an anchor configured for said securing the implant to the upper jaw bone, and wherein said securing comprises: securing the anchor in the upper jaw bone with screws. ### Claim 12 (depends on 11) The method according to claim 11, wherein the securing of the implant to the upper jaw bone comprises securing the anchor with the screw, which is screwed into an inner threaded hole of the implant. ### Claim 13 (depends on 1) The method according to claim 1, wherein the implant further comprises one or more outer threads. ### Claim 14 (depends on 1) The method according to claim 1, wherein the GSS is only at a side of a tip of the implant.