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公开(公告)号：US20190338230A1
公开(公告)日：2019-11-07
申请号：US16400840
申请日：2019-05-01
Applicant: Massachusetts Institute of Technology
Inventor： Brij Mohan Bhushan , Daniel R. Rathbone , David L. Trumper , Minkyun Noh , Jun Young Yoon
Abstract: On-platform pumps provide greater flexibility and design freedom and are a key feature of organs-on-chip platforms. On-platform electromagnetic (EM) pumps have been developed for use with the organ-on-chip platforms. The EM pump uses electrical energy, which may be supplied by a battery, making the pump portable. The EM pump uses an EM actuator having a low energy consumption. The actuator's low energy consumption is achieved by a latching design which requires only a short pulse of energy to switch its state and where springs store some of the actuator kinetic energy, which is then recovered in the reverse stroke. This further reduces the energy consumption of the actuator. Also provided are injection-molded, single-use platforms with onboard diaphragm micro-pumps and various valve and pump geometries. The EM actuators easily integrate with these platforms, demonstrating pumping at a constant flowrate, no measurable temperature rise, and valve sealing against varying back-pressure.
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公开(公告)号：US11296587B2
公开(公告)日：2022-04-05
申请号：US16341759
申请日：2017-11-30
Applicant: Massachusetts Institute of Technology
Inventor： David L. Trumper , Jun Young Yoon
Abstract: High force and low noise linear fine-tooth motors are described herein. Such motors can include armatures having fine teeth separated by narrow slots such that a ratio of a pitch between teeth and a pitch between permanent magnet poles is less than that of a conventional iron-core linear motor. In one embodiment, such a linear motor can include a first component having an armature including a plurality of iron cores surrounded by coil windings, and a second component having a plurality of permanent magnets with alternating polarity. The plurality of iron cores can be spaced apart from one another by an iron core pitch distance and the plurality of permanent magnets can be spaced apart from one another by a permanent magnet pole pitch distance, and a ratio of the iron core pitch to the magnetic pole pitch can be less than 1.33.
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公开(公告)号：US11749437B2
公开(公告)日：2023-09-05
申请号：US16400840
申请日：2019-05-01
Applicant: Massachusetts Institute of Technology
Inventor： Brij Mohan Bhushan , Daniel R. Rathbone , David L. Trumper , Minkyun Noh , Jun Young Yoon
CPC classification number: H01F7/14 , B01L3/50273 , B01L3/502707 , B01L3/502715 , B01L3/502753 , B01L9/527 , C12M21/08 , C12M23/16 , C12M29/00 , F04B43/043 , F04B43/14 , B01L2200/025 , B01L2200/027 , B01L2200/10 , B01L2300/123 , B01L2400/043 , B01L2400/0415
Abstract: On-platform pumps provide greater flexibility and design freedom and are a key feature of organs-on-chip platforms. On-platform electromagnetic (EM) pumps have been developed for use with the organ-on-chip platforms. The EM pump uses electrical energy, which may be supplied by a battery, making the pump portable. The EM pump uses an EM actuator having a low energy consumption. The actuator's low energy consumption is achieved by a latching design which requires only a short pulse of energy to switch its state and where springs store some of the actuator kinetic energy, which is then recovered in the reverse stroke. This further reduces the energy consumption of the actuator. Also provided are injection-molded, single-use platforms with onboard diaphragm micro-pumps and various valve and pump geometries. The EM actuators easily integrate with these platforms, demonstrating pumping at a constant flowrate, no measurable temperature rise, and valve sealing against varying back-pressure.
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