WO 2007/ A3 PCT. (19) World Intellectual Property Organization International Bureau

Transcription

1 (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date (10) International Publication Number 7 June 2007 ( ) PCT WO 2007/ A3 (51) International Patent Classification: 4th, DK-2100 Copenhagen Oe (DK) GILLES, Brieuc A61C 19/04 ( ) GOlB 11/24 ( ) [CA/DK], Schleppegrellsgade 4, Kl Tv, DK-2200 Copen A61C 19/05 ( ) A61C 9/00 ( ) hagen N (DK) CLAUSEN, Tais [DK/DK], Viborggade 72a, 1 Tv, DK-2100 Copenhagen Oe (DK) (21) International Application Number: (74) Agent: H0IBERG A/S, St Kongensgade 59a, DK-1264 PCT/DK2006/ Copenhagen K (DK) (22) International Filing Date: (81) Designated States (unless otherwise indicated, for every 30 November 2006 ( ) kind of national protection available): AE, AG, AL, AM, AT,AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, (25) Filing Language: English CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, (26) Publication Language: English JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV,LY,MA, MD, MG, MK, MN, MW, MX, MY, (30) Priority Data: MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, PA November 2005 ( ) DK RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, PA February 2006 ( ) DK TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW (71) Applicant (for all designated States except US): 3SHAPE (84) Designated States (unless otherwise indicated, for every A/S [DK/DK], Holmens Kanal 7, 4 Sal, DK-1060 Copen kind of regional protection available): ARIPO (BW, GH, hagen K (DK) GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), (72) Inventors; and European (AT,BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, (75) Inventors/Applicants (for US only): FISKER, Rune FR, GB, GR, HU, IE, IS, IT, LT, LU, LV,MC, NL, PL, PT, [DK/DK], Kaplevej 87, DK-2830 Virum (DK) DE- RO, SE, SI, SK, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, ICHMANN, Nikolaj [DK/DK], Stockholmsgade 3, GN, GQ, GW, ML, MR, NE, SN, TD, TG) [Continued on next page] (54) Title: IMPRESSION SCANNING FOR MANUFACTURING OF DENTAL RESTORATIONS (57) Abstract: The present invention relates to a method for obtaining an accurate three-dimensional model of a dental impression, said method comp π sing the steps of, scanning at least a part of an upper jaw impression and/or a lower jaw impression, obtaining an impression scan, evaluating the quality of the impression scan, and use the impression scan to obtain a three-dimensional model, thereby obtaining an accurate three-dimensional model of the dental impression

2 Published: For two-letter codes and other abbreviations, refer to the "Guid- with international search report ance Notes on Codes and Abbreviations "appearing at the begin- before the expiration of the time limit for amending the ning of each regular issue of the PCT Gazette claims and to be republished in the event of receipt of amendments (88) Date of publication of the international search report: 18 October 2007

3 A. CLASSIFICATION Of SUBJECT MATTER INV. A61C19/04 A61C19/05 G01B11/24 ADD. A61C9/00 According to International Patent Classification (IPC) or to both national classification and IPC B. FIELDS SEARCHED Minimum documentation searched (classification system followed by classification symbols) A61C GOlB Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched Electronic data base consulted during the international search (name of data base and, where practical, search terms used) EPO-Internal C. DOCUMENTS CONSIDERED TO BE RELEVANT Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No US A (WU CHUANG-OY [CA] E AL) 1-49, 16 August 1994 ( ) 111, 112 col umn 4, line column 5, line col umn 5, line line 57 col umn 9, line column 10, line 12 figures /~ Further documents are listed in the continuation of Box C See patent family annex * Special categories of cited documents 1 T" later document published after the international filing date or priority date and not in conflict with the application but "A" document defining the general state of the art which is not cited to understand the principle or theory underlying the considered to be of particular relevance invention 1 E" earlier document but published o n or after the international 1 X 1 document of particular relevance, the claimed invention filing date cannot be considered novel or cannot be considered to "L" document which may throw doubts on prionty claιm(s) or involve an inventive step when the document is taken alone which is cited to establish the publication date of another 1 Y" document of particular relevance, the claimed invention citation or other special reason (as specified) cannot be considered to involve an inventive step when the 1 O" document referring to an oral disclosure, use, exhibition or document is combined with one or more other such docu other means ments, such combination being obvious to a person skilled 1 P" document published prior to the international filing date but in the art later than the priority date claimed "&" document member of the same patent family Date of the actual completion of the international search Date of mailing of the international search report 7 August /08/2007 Name and mailing address of the ISA/ Authorized officer European Patent Office, P B 5818 Patentlaan 2 NL HV Rl)SWlJk TeI (+31-70) , Tx epo nl, Fax (+31-70) Kerner, Bodo Form PCT/ISA/210 (second sheet) (April 2005)

4 C(Contlnuation). DOCUMENTS CONSIDERED TO BE RELEVANT Category * Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No. US 2002/ A l (RUBBERT RUDGER [DE] ET 1-30 A L RUBBERT RUEDGER [DE] ET AL) 17 January 2002 ( ) paragraph [0022] paragraph [0029] paragraph [0080] paragraph [0114] - paragraph [0115] figures , US A (POIRIER MICHEL [CA]) March 1998 ( ) the whole document 1-49, US 2004/ A l (DURBIN DUANE MILFORD [US] ET AL) 8 July 2004 ( ) paragraph [0017] - paragraph [0018] figures , 65-72, Form PCT/ISA/210 (continuation of second sheet) (April 2005)

5 INTERNATIONAL SEARCH REPORT Box Il Observations where certain claims were found unsearchable (Continuation of item 2 of first sheet) This International Search Report has not been established in respect of certain claims under Article 17(2)(a) for the following reasons: 1. Claims Nos.: because they relate to subject matter not required to be searched by this Authority, namely: 2. Claims Nos.: because they relate to parts of the International Application that do not comply with the prescribed requirements to such a n extent that no meaningful International Search can be carried out, specifically: 3. Claims Nos.: because they are dependent claims and are not drafted in accordance with the second and third sentences of Rule 6.4(a). Box III Observations where unity of invention is lacking (Continuation of item 3 of first sheet) This International Searching Authority found multiple inventions in this international application, a s follows: see additi onal sheet 1. A s all required additional search fees were timely paid by the applicant, this International Search Report covers all 1 seearrrchhaahblloe cllaaiimmcs. 2. A s all searchable claims could be searched without effort justifying an additional fee, this Authority did not invite payment of any additional fee. 3. Y A s only some of the required additional search fees were timely paid by the applicant, this International Search Report covers only those claims for which fees were paid, specifically claims Nos.: 1-49, No required additional search fees were timely paid by the applicant. Consequently, this International Search Report is restricted to the invention first mentioned in the claims; it is covered by claims Nos.: Remark on Protest The additional search fees were accompanied by the applicant's protest. No protest accompanied the payment of additional search fees. Form PCT/ISA/21 0 (continuation of first sheet (2)) (January 2004)

6 International Application No. PCT/DK2006 / FURTHER INFORMATION CONTINUED FROM PCT/ISA/ 210 This International Searching Authority found multiple (groups of) inventions in this international application, as follows: 1. claims: 1-49, Method of obtaini ng a three-dimensi onal model by impressi on scanni ng 2. c l aims : Method of evaluating the quality of an impression and/or preparation 3. claims: Method of manufacturing at least one part of a tooth crown 4. claims: Method of obtaining orientation and localisation of at least one dental implant 5. c l aims : Method of manufacturing a dental model of at least a part of an upper jaw and/or a lower jaw 6. c l aims : Tray suitable for obtaining a dental impression

7 Patent document Publication Patent family Publication cited in search report date member(s) date US A CA A l us A l NONE us A NONE us A l US A l Form PGT/ISA/210 (patent family annex) (April 2005)