C12M29/12

Reversible liquid filtration system

A reversible liquid filtration system for cell culture perfusion comprises: a bioreactor vessel (B4), for storing the cell culture (L4); a perfusion pump (P7), comprising a reciprocable element (P71) which is movable in opposing first and second pumping directions (dF, dR); a filter (F4); and first and second bi-directional valves (BV1, BV2), each selectively controllable between open and closed positions. The perfusion pump (P7), the filter (F4), and the first and second bi-directional valves (BV1, BV2), together comprise a fluidic circuit in communication with the bioreactor vessel (B4). The bi-directional valves (BV1, BV2) are controllable to open and close in co-ordination with the reciprocating perfusion pump (P7), in order to enable both a two-way filtering flow around the fluidic circuit and also an alternating filtering flow between the bioreactor vessel (B4) and the perfusion pump (P7).

Movable cell incubator
11518972 · 2022-12-06 · ·

A movable cell incubator contains: a body, a first lid, a second lid and an electric control unit. The body includes a first internal space, a refrigeration room, and an airtight culture room. The first lid airtightly covers the culture room, the second lid airtightly covers the refrigeration room, and the control unit includes a microprocessor, a power module, a digital/analog conversion module defined between a microprocessor and the power module, a heating module controlling temperature of the culture room, a cooling module supplying cold source to the refrigeration room, a peristaltic pump module, a flow sensing module, a CO2 detective supply module supplying CO2 to the culture room, and a setting display module exposing and fixed on the first lid, with the peristaltic pump module aseptically connected between cell culture media and cell culture bag by multiple conveying tubes.

AN IN VITRO ENDOTHELIAL CELL CULTURE SYSTEM FOR OPTIMIZING PULSATILE WORKING MODES OF THE CONTINUOUS FLOW ARTIFICIAL HEART

An in vitro endothelial cell culture system for optimizing the pulsatile working mode of a continuous flow artificial heart belongs to the technical field of artificial organs. The system includes three parts: 1) a cell culture model on a microfluidic chip and an off-chip multielement aortic arch afterload fluid mechanics circulation loop; 2) devices for simulating the power source of a cardiovascular system: a fluid loading device is realized by a pulse blood pump, and an artificial heart device is connected in parallel to both ends of the pulse blood pump; and 3) a peripheral detection and feedback control system, comprising pressure and flow sensors, a fluorescence microscope, a CCD high-speed camera system and a proportional-integral-derivative feedback control system. The system can accurately simulate the real hemodynamics microenvironment of vascular endothelial cells in different parts of the aortic arch.

Method for cultivating cells

The present invention relates to a method for cultivating cells, in particular tissues, comprising a carrier plate unit, which has at least one access opening, at least one cultivation chamber, and at least one channel connecting the access opening to the cultivation chamber.

Device and method for cultivating cells

The present invention relates to a device for cultivating cells, in particular tissue, comprising a carrier plate unit which has a central axis of rotation, at least one access opening arranged proximally to the axis of rotation, at least one cultivation chamber arranged distally to the axis of rotation, and at least one channel connecting the access opening to the cultivation chamber, and also a method for cultivating cells in a device according to the invention and a method for producing the device according to the invention.

FLOW PATH CASSETTE, CELL CULTURING KIT, AND CELL CULTURING SYSTEM
20220348857 · 2022-11-03 ·

A flow path cassette, a cell culturing kit, and a cell culturing system are provided, which are capable of increasing a degree of freedom in the layout of the flow paths. A flow path cassette, in which flow paths are aggregated, is equipped with a first cassette main body in which flow paths are formed between resin sheets and a second cassette main body in which flow paths are formed between resin sheets, and a frame in which these elements are accommodated. In the frame, the first cassette main body is accommodated in a first accommodation space formed in a first direction, and the second cassette main body is accommodated in a second accommodation space formed in a second direction on an opposite side from the first direction.

Liquid filtration and pump system

A liquid filtration system comprising a syringe pump comprising a gas chamber and a movable plunger, wherein the gas chamber has an aperture at a first end and the plunger forms a seal within the internal walls of the chamber; a liquid chamber having two openings, the openings positioned at opposite ends of the chamber and the first opening connected to the aperture of the gas chamber; a bioreactor in fluidic communication with the second opening of the liquid chamber; a filter arranged to filter liquid passing between the bioreactor and the liquid chamber, the filter comprising a permeate outlet for removing filtered liquid; wherein, in use, the plunger may be moved in a reciprocating motion causing a corresponding movement of gas which drives liquid alternately between the liquid chamber and the bioreactor such that liquid passes through the filter and filtered liquid may be removed via the permeate outlet.

PERFUSION SYSTEMS AND CELL CULTIVATION PERFUSION SYSTEMS
20230174914 · 2023-06-08 · ·

The present disclosure provides a perfusion system and a cell cultivation perfusion system, the perfusion system comprising: a pressure transfer component, the pressure transfer component including a belt and multiple pressure members disposed on the belt at intervals; a driving device, a driving connection being established between the driving device and the pressure transfer component; and at least one pipeline assembly, the at least one pipeline assembly including at least one pressable pipeline for fluid flow; wherein a press area is formed between the pressure transfer component and each of the at least one pressable pipeline, the multiple pressure members move with the belt, and at least a portion of the multiple pressure members press against the at least one pressable pipeline in the press area.

Modular platform for multi-tissue integrated cell culture

The systems and methods disclosed herein are generally related to a cell culture system. More particularly, the systems and methods enable the culturing and interconnecting of a plurality of tissue types in a biomimetic environment. By culturing organ specific tissue types within a biomimetic environment and interconnecting each of the organ systems in a physiologically meaningful way, experiments can be conducted on in vitro cells that substantially mimic the responses of in vivo cell populations. In some implementations, the organ systems are fluidically connected with a constant-volume pump.

Method and device for feeding gases or gas mixtures into a liquid, suspension or emulsion in a reactor in a specific manner

The invention relates to a method and to a device for feeding gases or gas mixtures into a liquid, suspension, or emulsion in a reactor in a specific manner. According to the invention, gases or gas mixtures are fed into a liquid, suspension, or emulsion in a reactor in a specific manner, wherein the gas or gas mixture is fed in a specific amount and/or at defined points in time in one pulse as a gas bubble into a flowing liquid in a tilted reactor system, whereby a pulsation effect is obtained, wherein a driving force is produced by means of an adiabatic relaxation of the fed-in gas or gas mixture, by means of which driving force wall adhesions on the reactor are prevented.