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Hybrid linear actuator controlled hydraulic cell stretching

  • US 10,640,742 B2
  • Filed: 09/25/2015
  • Issued: 05/05/2020
  • Est. Priority Date: 09/25/2014
  • Status: Active Grant
First Claim
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1. A hydraulic cell stretching device comprising:

  • a source of variable pressured hydraulic fluid hydraulically coupled to a flexing chamber;

    the flexing chamber having at least one cell well;

    the at least one cell well having a membrane subjected to the variable pressured hydraulic fluid, wherein the membrane carries a cell culture to be subjected to cell stretching;

    each cell well having multiple hydraulic openings to allow hydraulic fluid into or out of each of the at least one cell well;

    a hydraulic circuit including a fluid delivery path leading to the at least one cell well and a separate fluid return path leading from the at least one cell well;

    one of a one-way check valve and a gate valve positioned along the fluid delivery path;

    one of another one-way check valve and another gate valve positioned along the fluid return path;

    wherein a plurality of cell wells are positioned in a single baseplate;

    wherein a first column of the plurality of wells are fluidically connected to one another and experience a first hydraulic pressure from a first independently operated drive module; and

    wherein a second column of the plurality of cell wells are fluidically connected to one another but are fluidically separate from the cell wells of the first column and wherein the second column of the plurality of cell wells simultaneously experience a second hydraulic pressure from a second independently operated drive module distinct from the first independently operated drive module at the same time as the first column of the plurality of cell wells experiences the first hydraulic pressure.

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