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Title:
THREE-DIMENSIONAL IMPLANTABLE MATRIX WITH REDUCED FOREIGN BODY RESPONSE
Document Type and Number:
WIPO Patent Application WO/2022/074427
Kind Code:
A1
Abstract:
An implantable and biodegradable polymeric matrix (10) with reduced foreign body response for the regeneration and/or reconstruction and/or creation of soft and connective tissue and/or organs has: a density equal to or lower than 40 kg/m 3; a plurality of local thicknesses of a solid component (12), with an arithmetic mean equal to or lower than 95 μm, an average size of pores/void spaces (11) equal to or lower than 15,000 μm; a surface roughness R a of the solid component (12) with an arithmetic mean equal to or lower than 3 μm; a contact angle θ of the solid component (12) lower than 110°, preferably in the range 10° to 90° and more preferably in the range 30° to 60°.

Inventors:
GERGES IRINI (IT)
TOCCHIO ALESSANDRO (US)
MARTELLO FEDERICO (IT)
TAMPLENIZZA MARGHERITA (IT)
CHINCARINI GIULIA MARIA FOSCARINA (IT)
KOMAN STEFANO (IT)
Application Number:
PCT/IB2020/059352
Publication Date:
April 14, 2022
Filing Date:
October 06, 2020
Export Citation:
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Assignee:
TENSIVE SRL (IT)
International Classes:
A61L27/56
Domestic Patent References:
WO2016038083A12016-03-17
WO2017029633A12017-02-23
WO2017037649A12017-03-09
Foreign References:
US20200189177A12020-06-18
Other References:
GERGES IRINI ET AL: "Exploring the potential of polyurethane-based soft foam as cell-free scaffold for soft tissue regeneration", ACTA BIOMATERIALIA, ELSEVIER, AMSTERDAM , NL, vol. 73, 12 April 2018 (2018-04-12), pages 141 - 153, XP085403703, ISSN: 1742-7061, DOI: 10.1016/J.ACTBIO.2018.04.011
KUCINSKA-LIPKA J ET AL: "Polyurethane porous scaffolds (PPS) for soft tissue regenerative medicine applications", POLYMER BULLETIN, SPRINGER, HEIDELBERG, DE, vol. 75, no. 5, 25 July 2017 (2017-07-25), pages 1957 - 1979, XP036484320, ISSN: 0170-0839, [retrieved on 20170725], DOI: 10.1007/S00289-017-2124-X
POOJA SINGHAL ET AL: "Ultra low density and highly crosslinked biocompatible shape memory polyurethane foams", JOURNAL OF POLYMER SCIENCE PART B: POLYMER PHYSICS, vol. 50, no. 10, 4 March 2012 (2012-03-04), pages 724 - 737, XP055164907, ISSN: 0887-6266, DOI: 10.1002/polb.23056
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DADO, D. ET AL.: "Mechanical control of stem cell differentiation", REGENERATIVE MEDICINE, vol. 7, no. 1, 2012, pages 101 - 116, XP055555325, DOI: 10.2217/rme.11.99
RA JO, A. ET AL.: "Fabrication of cylindrical PCL scaffolds using a knitting technique and assessment of cell proliferation in the scaffolds", TISSUE ENGINEERING AND REGENERATIVE MEDICINE, vol. 11.1, 2014, pages 16 - 22
JOVER ET AL.: "Inhibition of enzymes involved in collagen cross-linking reduces vascular smooth muscle cell calcification", THE FASEB JOURNAL, 2018
"Extracellular Matrix for Tissue Engineering and Biomaterials", 2018, HUMANA PRESS
Attorney, Agent or Firm:
ROBBA, Pierpaolo et al. (IT)
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