Abstract: Apparatus and associated methods relate to cell culture systems having controlled gas concentration boundary conditions around cell culture. In an illustrative example, a programmable cell culture system (PCCS) may include one or more manifolds, each releasably coupled to multiple cell culture modules. The cell culture modules, for example, may include a nutrient capacitive medium (NCM) in fluid communication with a concentration-controlled gas source through at least two gas transfer interfaces. The gas transfer interfaces (GTIs) may, for example, be spatially distributed in relation to a cell growth surface in the NCM. Each GTI, for example, may include a gas permeable membrane (GPM) and a plenum. The GPM may be disposed between the plenum and the NCM. Various embodiments may advantageously selectively control a concentration of at least one target gas in the NCM by maintaining predetermined boundary conditions of the cell growth surface via the GTIs.

Abstract: Apparatuses and associated methods relate to a coaxial stream delivery device having an inlet section and an outlet section in fluid communication via a plenum chamber. In an illustrative example, an inner radius of the plenum chamber may monotonically decrease distally along a longitudinal axis. The inlet section may include an inner tubular wall extending along the longitudinal axis. At least one bridge may extend radially inward from the inner tubular wall to coaxially align an inner conduit within the inner tubular wall relative to the longitudinal axis. The at least one bridge may define a annular sector apertures bounded by the inner tubular wall and an outer wall of the inner conduit. Various embodiments may advantageously be disposed in a fluid path to coaxially align a therapeutic fluid stream entering the inner conduit within a sheath fluid stream entering the annular sector apertures.

Abstract: Apparatus and associated methods relate to cell culture systems having controlled gas concentration boundary conditions around cell culture. In an illustrative example, a programmable cell culture system (PCCS) may include one or more manifolds, each releasably coupled to multiple cell culture modules. The cell culture modules, for example, may include a nutrient capacitive medium (NCM) in fluid communication with a concentration-controlled gas source through at least two gas transfer interfaces. The gas transfer interfaces (GTIs) may, for example, be spatially distributed in relation to a cell growth surface in the NCM. Each GTI, for example, may include a gas permeable membrane (GPM) and a plenum. The GPM may be disposed between the plenum and the NCM. Various embodiments may advantageously selectively control a concentration of at least one target gas in the NCM by maintaining predetermined boundary conditions of the cell growth surface via the GTIs.

Abstract: Apparatus and associated methods relate to cell culture systems having controlled gas concentration boundary conditions around cell culture. In an illustrative example, a programmable cell culture system (PCCS) may include one or more manifolds, each releasably coupled to multiple cell culture modules. The cell culture modules, for example, may include a nutrient capacitive medium (NCM) in fluid communication with a concentration-controlled gas source through at least two gas transfer interfaces. The gas transfer interfaces (GTIs) may, for example, be spatially distributed in relation to a cell growth surface in the NCM. Each GTI, for example, may include a gas permeable membrane (GPM) and a plenum. The GPM may be disposed between the plenum and the NCM. Various embodiments may advantageously selectively control a concentration of at least one target gas in the NCM by maintaining predetermined boundary conditions of the cell growth surface via the GTIs.

Abstract: Apparatus and associated methods relate to a coaxial stream delivery device having an inlet section and outlet section in fluid communication via a plenum chamber. In an illustrative example, an inner radius of the plenum chamber may monotonically decrease distally along a longitudinal axis. The inlet section may include an inner tubular wall extending along the longitudinal axis. At least one bridge may extend radially inward from the inner tubular wall to coaxially align an inner conduit therewithin relative to the longitudinal axis. The at least one bridge may define a corresponding number of annular sector apertures bounded by the inner tubular wall and an outer wall of the inner conduit. Various embodiments may advantageously be disposed in a fluid path to coaxially align a therapeutic fluid stream entering the inner conduit within a sheath fluid stream entering the annular sector apertures.

Abstract: Embodiments of the invention are related to leads with topographic surface features and related methods, amongst other things. In an embodiment, the invention includes an implantable lead including a lead body having a proximal end and a distal end, the lead body including an outer layer defining a lumen, the lead body further including a first electrical conductor disposed within the lumen of the outer layer. The implantable lead can further include a first electrode coupled to the lead body, the electrode in electrical communication with the first electrical conductor. The implantable lead can also include a cellular modulation segment on the external surface of the lead body, the cellular modulation segment comprising topographic surface features configured to modulate cellular responses. Other embodiments are also included herein.

Abstract: Embodiments of the invention are related to leads with topographic surface features and related methods, amongst other things. In an embodiment, the invention includes an implantable lead including a lead body having a proximal end and a distal end, the lead body including an outer layer defining a lumen, the lead body further including a first electrical conductor disposed within the lumen of the outer layer. The implantable lead can further include a first electrode coupled to the lead body, the electrode in electrical communication with the first electrical conductor. The implantable lead can also include a cellular modulation segment on the external surface of the lead body, the cellular modulation segment comprising topographic surface features configured to modulate cellular responses. Other embodiments are also included herein.