(19)
(11) EP 4 023 262 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
17.08.2022 Bulletin 2022/33

(43) Date of publication:
06.07.2022 Bulletin 2022/27

(21) Application number: 20857473.1

(22) Date of filing: 27.08.2020
(51) International Patent Classification (IPC): 
A61L 27/02(2006.01)
A61L 27/12(2006.01)
C01B 25/32(2006.01)
C12M 3/00(2006.01)
 A61K 47/02(2006.01)
A61L 27/56(2006.01)
C01F 11/18(2006.01)
(52) Cooperative Patent Classification (CPC):
A61L 27/02; A61L 27/12; A61L 27/20; A61L 27/56; A61L 27/40; C01F 11/18; A61K 47/02; C12M 3/00; C01B 25/32
(86) International application number:
PCT/JP2020/032323
(87) International publication number:
WO 2021/039892 (04.03.2021 Gazette 2021/09)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 27.08.2019 JP 2019154607

(71) Applicants:
  • Ishikawa, Kunio
    Fukuoka 811-2201 (JP)
  • GC Corporation
    Sunto-gun, Shizuoka 410-1307 (JP)

(72) Inventors:
  • TSURU, Kanji
    Fukuoka-shi, Fukuoka 814-0164 (JP)
  • TOITA, Riki
    Ikeda-shi Osaka 563-0026 (JP)
  • NAKASHIMA, Yasuharu
    Fukuoka-shi Fukuoka 813-0017 (JP)
  • ISHIKAWA, Kunio
    Kasuya-gun, Fukuoka 811-2201 (JP)

(74) Representative: TBK 
Bavariaring 4-6
80336 München
80336 München (DE)

   


(54) MEDICAL CALCIUM CARBONATE COMPOSITION, RELATED MEDICAL COMPOSITIONS, AND PRODUCTION METHODS THEREFOR


(57) Provided is a medical calcium carbonate composition that highly satisfies 1) tissue affinity, 2) in vivo resorbability, 3) reactivity, and 4) mechanical strength required for medical materials to be implanted in vivo, a medical calcium phosphate composition, a medical carbonate apatite composition, a medical calcium hydroxide porous structure, a medical calcium sulfate setting granules, and a bone defect regeneration kit related to the medical calcium carbonate composition, and methods for producing these. The medical composition calcium carbonate that highly satisfies the above described elements, and related medical compositions can be produced by controlling the polymorph or structure of calcium carbonate.