Abstract: A system for the evaluation of respirator materials includes an aerosolized particle source configured to selectively provide aerosolized particles, a mixing chamber including a drying apparatus, a vacuum source configured to control airflow, an airtight respirator chamber for evaluating respirator materials, a processor, and a memory. The airtight respirator chamber includes a first sub-chamber, a second sub-chamber, a first sensor and a second sensor. The memory includes instructions stored thereon, which when executed by the processor cause the system to: obtain the first signal and the second signal; determine an aerosol filtration efficiency based on a difference between the first signal and second signal; compare the aerosol filtration efficiency to a predetermined threshold; and provide an indication whether the aerosol filtration efficiency is above or below the predetermined threshold.

Abstract: A system for the evaluation of respirator materials includes an aerosolized particle source configured to selectively provide aerosolized particles, a mixing chamber including a drying apparatus, a vacuum source configured to control airflow, an airtight respirator chamber for evaluating respirator materials, a processor, and a memory. The airtight respirator chamber includes a first sub-chamber, a second sub-chamber, a first sensor and a second sensor. The memory includes instructions stored thereon, which when executed by the processor cause the system to: obtain the first signal and the second signal; determine an aerosol filtration efficiency based on a difference between the first signal and second signal; compare the aerosol filtration efficiency to a predetermined threshold; and provide an indication whether the aerosol filtration efficiency is above or below the predetermined threshold.

Abstract: A process for additive manufacturing of a resorbable implant to be implanted into a patient includes providing a biocompatible resin including a liquid light-polymerizable material that is resorbable after polymerization and an initiator. The process further includes actuating an additive manufacturing apparatus to expose an amount of the biocompatible resin to light to at least partially cure the exposed amount of biocompatible resin to form a layer of the resorbable implant and actuating the additive manufacturing apparatus to expose at least some additional amount of biocompatible resin to light to at least partially cure the exposed additional amount of biocompatible resin to form an additional layer of the resorbable implant and to at least partially overcure previously cured layers to cause at least some interlayer binding between the previously cured layers and the additional layer.

Abstract: A process for additive manufacturing of a resorbable implant to be implanted into a patient includes providing a biocompatible resin including a liquid light-polymerizable material that is resorbable after polymerization and an initiator. The process further includes actuating an additive manufacturing apparatus to expose an amount of the biocompatible resin to light to at least partially cure the exposed amount of biocompatible resin to form a layer of the resorbable implant and actuating the additive manufacturing apparatus to expose at least some additional amount of biocompatible resin to light to at least partially cure the exposed additional amount of biocompatible resin to form an additional layer of the resorbable implant and to at least partially overcure previously cured layers to cause at least some interlayer binding between the previously cured layers and the additional layer.