IP Library Granted Patent US 12,359,153
Granted Patent B2
US 12,359,153 · App. 18/304,957 · Granted Jul 15, 2025

Cell culturing system and method

Inventors: Olivier Thierry Guenat (Bern, CH); Janick Daniel Stucki (Bern, CH); Marcel Aeschlimann (Ligerz, CH); Christophe Léchot (Biel, CH)
Assignees: AlveoliX Technologies AG; UNIVERSITÄT BERN
C12M21/08C12M23/12C12M23/42C12M23/44C12M23/58C12M25/02C12M29/10C12M35/04
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,359,153
App. No.
18/304,957
Granted
Jul 15, 2025
Kind
B2
Abstract

A culturing membrane comprising a support provided by a mesh with holes filled with extracellular matrix proteins, as well as a method of producing a culturing membrane made of components found in a basal membrane, comprising the steps of using a mesh having holes; and providing a solution with the components found in the basal membrane on the mesh.

Claims (18)

1. A culturing membrane for mimicking in-vivo lung alveoli tissue comprising:

a support with holes filled with extracellular matrix proteins, wherein the support is provided with a mesh, wherein the holes of the mesh have a dimension of about 200 μm to about 1000 μm in diameter, and wherein a thickness of the mesh is of about 1 μm to about 100 μm.

2. The culturing membrane of claim 1 , wherein the extracellular matrix proteins are collagen, elastin, laminin, fibronectin or a combination thereof.

3. The culturing membrane of claim 1 , wherein the pores of the support have a circular, quadratic, rectangular or triangular shape, or a combination thereof.

4. The culturing membrane of claim 1 , wherein the mesh is made of polymer, metal, glass, silicon, silicon nitride, silicon oxide, a biodegradable material, cellulose, or a resorbable material.

5. The culturing membrane of claim 1 , wherein a distance between the pores of the mesh are about 2 μm to about 200 μm.

6. The culturing membrane of claim 1 , wherein a material of the mesh has differing mechanical properties to create spatial gradients.

7. The culturing membrane of claim 6 , wherein the mechanical properties comprise stiffness and/or elasticity modulus.

8. The culturing membrane of claim 1 , wherein the culturing membrane is elastic.

9. The culturing membrane of claim 1 , wherein the culturing membrane is made of Polydimethylsiloxane, Polyurethane, Cyclic Olefin Copolymer, Polystyrene, Polycarbonate, Polypropylene and/or Poly (methyl methacrylate).

10. A method of producing a culturing membrane for mimicking in-vivo lung alveoli tissue made of components found in a basal membrane, comprising the steps of:

using a mesh having holes, wherein the dimensions of the holes of the mesh are 200 μm to 1000 μm, and wherein a thickness of the mesh is of 1 μm to 100 μm; and

providing a solution with the components found in the basal membrane on the mesh.

11. The method of claim 10 , comprising a step of drying the culturing membrane.

12. The method of claim 11 , comprising a step of hydrating the culturing membrane before use.

13. The method of claim 10 , wherein the solution with the components found in the basal membrane is provided on the mesh by pipetting the solution on the mesh.

14. The method of claim 10 , wherein the solution with the components found in the basal membrane is provided on the mesh by electro-spinning the solution.

15. The method of claim 10 , wherein the components found in the basal membrane are collagen or elastin.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 21, 2023
From: STUCKI, JANICK DANIEL; AESCHLIMANN, MARCEL; LÉCHOT, CHRISTOPHE
To: ALVEOLIX AG
Reel/Frame 063405/0429 →
CHANGE OF NAME Recorded Apr 21, 2023
From: ALVEOLIX AG
To: ALVEOLIX TECHNOLOGIES AG
Reel/Frame 063409/0525 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 21, 2023
From: GUENAT, OLIVIER THIERRY
To: UNIVERSITÄT BERN
Reel/Frame 063425/0125 →
Priority Claims (1)
EP 16200451 · Nov 24, 2016 · regional
Continuity (2)
Continuation 16462166
Related Publication 20230250375A1 · Aug 10, 2023
References Cited (22)
US 20070155007A1 · Kan · 2007 [cited by examiner]
US 20080280290A1 · Dawson · 2008 [cited by examiner]
US 20110250585A1 · Ingber · 2011 [cited by examiner]
US 20140212964A1 · Cuiffi et al. · 2014 [cited by applicant]
US 20180230415A1 · Huh · 2018 [cited by examiner]
DE 10046175A1 · 2002 [cited by applicant]
JP 2007537732A · 2007 [cited by applicant]
JP 2008079598A · 2008 [cited by applicant]
JP 2009521228A · 2009 [cited by examiner]
WO 2005104755A2 · 2005 [cited by applicant]
WO 2006033935A2 · 2006 [cited by applicant]
WO 2013082612A1 · 2013 [cited by applicant]
WO 2013086486A1 · 2013 [cited by applicant]
WO 2014018770A1 · 2014 [cited by applicant]
WO 2014048637A1 · 2014 [cited by applicant]
WO 2015032889A1 · 2015 [cited by applicant]
WO 2016022722A1 · 2016 [cited by applicant]
WO WO2016112245A1 · 2016 [cited by examiner]
Machine Translation of JP-2009521228-A (Year: 2024). [cited by examiner]
Office Action issued on Jul. 4, 2023 in JP Appl. No. 2022-092890. [cited by applicant]
International Search Report and Written Opinion issued Mar. 1, 2018 in corresponding International Patent Application No. PCT/EP2017/080259. [cited by applicant]
Domansky et al., “Perfused multiwell plate for 3D liver tissue engineering,” The Royal Society of Chemistry, Lab Chip, vol. 10, pp. 51-58, 2010. [cited by applicant]