公开(公告)号：US11918513B2

公开(公告)日：2024-03-05

申请号：US16376288

申请日：2019-04-05

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Simon John ,  Hyunsu Park

IPC: A61F9/007 ,  A61F9/00 ,  F16K99/00

CPC classification number: A61F9/00781 ,  A61F9/0017 ,  A61F9/00736 ,  F16K99/0003 ,  F16K2099/0088

Abstract: Drainage devices have a self-clearing capability for reducing obstructions and a controllable flow restriction capability for controlling drainage flow, and microactuators for providing such capabilities. Such a microactuator includes a frame and an appendage anchored to the frame such that the frame supports the appendage, the frame at least partially surrounds the appendage, and the appendage is disposed in an opening or window defined by the frame. The appendage includes a platform and at least one beam that anchors the platform to the frame to enable the appendage to deflect out of a plane defined by the frame. The platform may include a ferromagnetic material that enables the appendage to deflect in response to an applied magnetic field.

公开(公告)号：US20190307608A1

公开(公告)日：2019-10-10

申请号：US16376288

申请日：2019-04-05

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Simon John ,  Hyunsu Park

IPC: A61F9/007 ,  A61F9/00 ,  F16K99/00

Abstract: Drainage devices have a self-clearing capability for reducing obstructions and a controllable flow restriction capability for controlling drainage flow, and microactuators for providing such capabilities. Such a microactuator includes a frame and an appendage anchored to the frame such that the frame supports the appendage, the frame at least partially surrounds the appendage, and the appendage is disposed in an opening or window defined by the frame. The appendage includes a platform and at least one beam that anchors the platform to the frame to enable the appendage to deflect out of a plane defined by the frame. The platform may include a ferromagnetic material that enables the appendage to deflect in response to an applied magnetic field.

公开(公告)号：US20190030318A1

公开(公告)日：2019-01-31

申请号：US16045875

申请日：2018-07-26

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Hyunsu Park

IPC: A61N1/05 ,  G03F7/16 ,  B05D1/00

Abstract: A novel electrode design to prolong the lifetime and function efficacy of implantable pulse generators is disclosed herein. The novel electrode more efficiently delivers electrical charge for stimulating the nervous system, reduces power consumption by up to 50 percent while increasing functionality effectiveness. This new electrode design can be used in implantable simulation systems to treat a large number of neurological disorders with existing platforms or perform standalone.

公开(公告)号：US20240181246A1

公开(公告)日：2024-06-06

申请号：US18441756

申请日：2024-02-14

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Hyunsu Park ,  Zhihong Chen

IPC: A61N1/05 ,  A61B5/291 ,  A61B5/293 ,  A61N1/04 ,  A61N1/36

CPC classification number: A61N1/0529 ,  A61B5/291 ,  A61B5/293 ,  A61N1/0472 ,  A61N1/36025 ,  A61N1/36082

Abstract: Electronic devices having one or more platinum-based electrodes and methods of producing the same. Such an electronic device includes a platinum-based electrode having a protective layer thereon that includes graphene in an amount effective to reduce platinum corrosion of the electrode.

公开(公告)号：US20210228864A1

公开(公告)日：2021-07-29

申请号：US17143491

申请日：2021-01-07

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Hyunsu Park ,  Zhihong Chen

IPC: A61N1/05 ,  H01B13/32 ,  H01B5/00 ,  A61N1/36 ,  A61N1/04

Abstract: Electronic devices having one or more platinum-based electrodes and methods of producing the same. Such an electronic device includes a platinum-based electrode having a protective layer thereon that includes graphene in an amount effective to reduce platinum corrosion of the electrode.

公开(公告)号：US20210040427A1

公开(公告)日：2021-02-11

申请号：US16936119

申请日：2020-07-22

Applicant: Purdue Research Foundation

Inventor： Hyowon Lee ,  Hyunsu Park ,  Luis Solorio ,  Angel Enriquez ,  Sarah Libring

IPC: C12M1/32 ,  C12M3/00 ,  C12M1/36 ,  C12M1/42 ,  C12M1/12 ,  C12N5/00 ,  C12N5/071

Abstract: Cell-culture platforms are described that can impart cyclic strain on a biologically-relevant culture substrate. Accordingly, systems and methods of the invention can provide a more accurate model of physiological strain and forces than earlier technologies. Systems of the invention enable high-throughput experimentation in standard culturing equipment, while utilizing a 3D physiologically-relevant environment.