公开(公告)号：US11647959B2

公开(公告)日：2023-05-16

申请号：US16958165

申请日：2019-01-02

Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN

Inventor： Duxin Sun ,  Yogesh B. Gianchandani ,  Tao Li ,  Jinhui Liao ,  Qisen Cheng ,  Johnathan Lewis ,  Ryan Meredith ,  Jeremy Felton

IPC: A61B5/145 ,  A61B10/00 ,  A61B5/01 ,  A61B5/03 ,  A61B5/00 ,  A61B5/07

CPC classification number: A61B5/6861 ,  A61B5/01 ,  A61B5/036 ,  A61B5/073 ,  A61B5/14539 ,  A61B10/0045 ,  A61B5/4255 ,  A61B2010/0061 ,  A61B2560/0214 ,  A61B2562/06 ,  A61B2562/162

Abstract: An ingestible electronic capsule for the collection of samples along a gastric intestinal tract and methods relating thereto are provided. The ingestible electronic capsule includes a housing and a cap that form an interior chamber. The cap includes a sampling port and one or more sample collection chambers are disposed within the interior chamber. A motor is also disposed within the interior chamber and is configured to rotate one of the cap and the one or more sample collection chambers so to align one or the one or more sample collection chambers and the sampling port of the cap so to allow for sample collection. A microcontroller is also disposed within the interior chamber and is in communication with at least the motor. The microcontroller is configured to control the selective alignment of the sampling port and one of the one or more sample collection chambers and induce gastric intestinal fluid sampling.

公开(公告)号：US10782446B2

公开(公告)日：2020-09-22

申请号：US15410724

申请日：2017-01-19

Applicant: The Regents of the University of Michigan

Inventor： Tao Li ,  Yogesh Gianchandani ,  Yu Sui ,  Ryan Meredith

IPC: G01V11/00

Abstract: An environmental logging system that includes a housing and an electronic logging circuit sealed within the housing. The logging circuit includes an energy source, transducer, charging circuit, trigger circuit, electronic control unit (ECU), and transmitter. The energy source is charged by the charging circuit using electricity from the transducer in response to external energy applied to the transducer. Commands may also be received by the circuit via the transducer. The ECU includes a processor, memory, and one or more sensors, and it operates under power from the energy source to store data from the sensor(s). The transmitter is coupled to the ECU and transmits the data via electromagnetic radiation outside the housing. The trigger circuit supplies operating power to the processor only when the voltage level of the energy source is above a minimum threshold. The housing may be a tubular shell filled with a polymeric material.