IP Library › Granted Patent US 10,723,994
Granted Patent B2
US 10,723,994 · App. 13/915,125 · Granted Jul 28, 2020

Device for separating adult stem cell

Inventors: Konrad-Wenzel Winkler (Warin, DE); Inge Matthiesen (Behlendorf, DE)
Assignee: HUMAN MED AG
C12M47/04C12M33/14
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Quick Facts
Patent No.
US 10,723,994
App. No.
13/915,125
Granted
Jul 28, 2020
Kind
B2
Abstract

The invention relates to a device ( 100 ) for separating adult stem cells from adipose tissue taken from a biological structure. The device ( 100 ) has a container ( 110 ) for receiving a material mixture with the adipose tissue and the adult stem cells. Furthermore, the device ( 100 ) has a rinse agent feed device ( 120 ), a mixture feed device ( 130 ), a stem cell extraction device ( 140 ), a rinse agent drainage device ( 150 ), and a selectively permeable membrane ( 161 - 165 ). The container ( 110 ) has at least two chambers ( 171 - 174 ) which are separated from one another by at least one membrane ( 161 - 165 ). The mixture feed device ( 130 ) and the stem extraction device ( 140 ) are also separated by the at least one membrane ( 161 - 165 ).

Claims (33)

1. A device for separating adult stem cells from adipose tissue taken from a biological structure, comprising:

a container comprising a first chamber, a stem cell chamber and a final chamber, wherein all chambers are fluidly connected in sequence, the first chamber being located above both the stem cell chamber and the final chamber;

the first chamber comprising at least one inlet port for introducing a fluid and a material mixture comprising adipose tissue and adult stem cells;

the stem cell chamber comprising a stem cell outlet port;

the final chamber comprising at least one final chamber outlet port;

the container comprising an active element coupled to the first chamber, the active element configured to mix the fluid and the material mixture;

at least a first selectively permeable membrane having a first pore size and being located at a bottom of the first chamber, and between the first chamber and the stem cell chamber;

a final selectively permeable membrane having a final pore size and being located between the stem cell chamber and the final chamber,

wherein

the first pore size is larger than the final pore size which measures from 0.1 μm to 10 μm and

the final selectively permeable membrane includes a cylindrical filter being arranged inside the final chamber, thereby forming the stem cell chamber inside the cylindrical filter, and the final chamber is defined between an outer surface of the cylindrical filter and an inner surface of the container, with a closed solid body located inside the cylindrical filter, having a volume of at least 40% of a volume of the cylindrical filter.

2. The device of claim 1 , wherein each of the first chamber and the final chamber comprises a pressure equalization valve, adapted to selectively open and close a pressure equalization connection between the respective chamber and an exterior of the container.

3. The device according to claim 1 , wherein the first chamber comprises a stirring pendulum as the active element, which is configured to perform a stirring rotational movement and/or a swing-type pendulum motion.

4. The device according to claim 1 , wherein the first chamber comprises a non-stationary stamp piston as the active element which is configured to repeatedly change its location of displacement.

5. The device of claim 4 , wherein the non-stationary stamp piston can be driven to oscillate by a vacuum.

6. The device according to claim 1 , wherein the first chamber comprises a vibrator which is configured to introduce oscillations to an interior of the first chamber.

7. The device according to claim 2 , wherein the at least one final chamber outlet port is configured so as to ensure an alternating suction and pressurized rinse.

8. The device according to claim 1 , wherein the container comprises a temperature-control element which is configured to cool and/or heat an interior of the container.

9. The device according to claim 1 , wherein the final selectively permeable membrane has an electrostatic polarization.

10. The device according to claim 1 , wherein the first chamber comprises a Venturi nozzle as the active element, the Venturi nozzle extending from an exterior of the container to an interior of the first chamber with the Venturi nozzle forming an additional inlet port to the first chamber.

11. The device according to claim 10 , wherein the Venturi nozzle comprises an exit opening and an impact element being disposed inside the first chamber, with the impact element physically connected to the Venturi nozzle and spaced apart from the exit opening.

12. A device for separating adult stem cells from adipose tissue taken from a biological structure, comprising:

a container comprising a first chamber, a second chamber, a stem cell chamber and a final chamber, wherein all chambers are fluidly connected in sequence, the first chamber being located above both the stem cell chamber and the final chamber;

the first chamber comprising at least one inlet port for introducing a fluid and a material mixture comprising adipose tissue and adult stem cells;

the stem cell chamber comprising a stem cell outlet port;

the final chamber comprising at least one final chamber outlet port;

the container comprising an active element coupled to the first chamber, the active element configured to mix the fluid and the material mixture

at least a first selectively permeable membrane having a first pore size and being located at the bottom of the first chamber, and between the first chamber and the second chamber;

at least a second selectively permeable membrane having a second pore size and being located between the second chamber and the stem cell chamber;

a final selectively permeable membrane having a final pore size and being located between the stem cell chamber and the final chamber,

wherein

the first pore size is larger than the second pore size and the second pore size is larger than the final pore size which measures from 0.1 μm to 10 μm and

wherein the final selectively permeable membrane includes a cylindrical filter being arranged inside the final chamber, thereby forming the stem cell chamber inside the cylindrical filter, and the final chamber is defined between an outer surface of the cylindrical filter and an inner surface of the container, with a closed solid body located inside the cylindrical filter, having a volume of at least 40% of a volume of the cylindrical filter.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2013
From: WINKLER, KONRAD-WENZEL; MATTHIESEN, INGE, DR.
To: HUMAN MED AG
Reel/Frame 030588/0905 →
Priority Claims (1)
DE 10 2012 210 653 · Jun 22, 2012 · national
Continuity (2)
Provisional Application 61673363 · Jul 19, 2012
Related Publication 20130344589A1 · Dec 26, 2013