公开(公告)号：US11701504B2

公开(公告)日：2023-07-18

申请号：US17150986

申请日：2021-01-15

申请人： California Institute of Technology ,  The Regents of the University of California

发明人： Yu-Chong Tai ,  Aubrey M. Shapero ,  Shane S. Shahrestani ,  Azita Emami ,  Abhinav Agarwal ,  Kuang-Ming Shang ,  Sunghoon Kim ,  Olajire Idowu ,  Kurtis I. Auguste

IPC分类号： A61M27/00

CPC分类号： A61M27/006 ,  A61M2205/3344 ,  A61M2205/3368 ,  A61M2205/3523 ,  A61M2205/50 ,  A61M2207/00

摘要： A long-lasting, wireless, biocompatible pressure sensor device is integrated within a hydrocephalus shunt, either within the shunt's reservoir/anchor or as an inline or pigtailed connector. When integrated within a typical reservoir, the device can sit within the reservoir's hollow frustum area covered by the resilient silicone dome of the reservoir. When integrated as an inline connector, the device can sit at any point on the peritoneal catheter or ventricular catheter, including between the VP shut's valve and reservoir. The pressure sensor device includes electronics that can be powered wirelessly by a reader held to a patient's scalp, and so no battery may be required. The reader can transmit an ambient, atmospheric pressure reading from outside the skull to the implanted device so that its electronics can calculate a calibrated gauge pressure internally and then relay it to a patient's smart phone.

公开(公告)号：US20210220627A1

公开(公告)日：2021-07-22

申请号：US17150986

申请日：2021-01-15

申请人： California Institute of Technology ,  The Regents of the University of California

发明人： Yu-Chong Tai ,  Aubrey M. Shapero ,  Shane S. Shahrestani ,  Azita Emami ,  Abhinav Agarwal ,  Kuang-Ming Shang ,  Sunghoon Kim ,  Olajire Idowu ,  Kurtis I. Auguste

IPC分类号： A61M27/00

摘要： A long-lasting, wireless, biocompatible pressure sensor device is integrated within a hydrocephalus shunt, either within the shunt's reservoir/anchor or as an inline or pigtailed connector. When integrated within a typical reservoir, the device can sit within the reservoir's hollow frustum area covered by the resilient silicone dome of the reservoir. When integrated as an inline connector, the device can sit at any point on the peritoneal catheter or ventricular catheter, including between the VP shut's valve and reservoir. The pressure sensor device includes electronics that can be powered wirelessly by a reader held to a patient's scalp, and so no battery may be required. The reader can transmit an ambient, atmospheric pressure reading from outside the skull to the implanted device so that its electronics can calculate a calibrated gauge pressure internally and then relay it to a patient's smart phone.

公开(公告)号：US20180325373A1

公开(公告)日：2018-11-15

申请号：US15948187

申请日：2018-04-09

申请人： California Institute of Technology ,  University of Southern California

发明人： Damien C. Rodger ,  Yu-Chong Tai ,  Mark S. Humayun ,  Aubrey M. Shapero ,  Abhinav Agarwal ,  Azita Emami

IPC分类号： A61B3/16 ,  A61M1/00

CPC分类号： A61B3/16 ,  A61B2562/0247 ,  A61B2562/166 ,  A61B2562/168 ,  A61M1/008 ,  A61M2205/04 ,  A61M2210/0612

摘要： A miniature, low power electronic pressure sensor with a first, oil-filled chamber to protect its microelectromechanical systems (MEMS) pressure sensitive membrane and a second chamber filled with saline or body fluids connected by tube into an organ in the body, such as an eyeball, that needs pressure sensing, is described. The tube carries pressure from a sensitive area within the organ to the electronic pressure sensor. The pressure sensor may communicate wirelessly with external readers and pass data to a server or other computer. Running alongside the tube is another tube for draining and pressure relief. The tubes, or cannulas, can share an opening into the organ in order to minimize the number of holes needed. The tubes may be molded into a single oval cross section, combined coaxially, or share a lumen for a portion that enters the wall of an organ so as to promote healing.

公开(公告)号：US11903595B2

公开(公告)日：2024-02-20

申请号：US17813177

申请日：2022-07-18

申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY

发明人： Saransh Sharma ,  Abhinav Agarwal ,  Mikhail Shapiro ,  Azita Emami

IPC分类号： A61B17/17 ,  G01B7/31

CPC分类号： A61B17/1707 ,  A61B17/1725 ,  G01B7/31

摘要： A three dimensional magnetic sensor attached to a surgical nail is located based on an applied monotonic magnetic field gradient. Another three dimensional magnetic sensor locates a surgical drill. A display generates a real time image of the relative alignment of the surgical drill and of the surgical nail, allowing a surgeon to repair bone fractures.

公开(公告)号：US11122975B2

公开(公告)日：2021-09-21

申请号：US15948187

申请日：2018-04-09

申请人： California Institute of Technology ,  University of Southern California

发明人： Damien C. Rodger ,  Yu-Chong Tai ,  Mark S. Humayun ,  Aubrey M. Shapero ,  Abhinav Agarwal ,  Azita Emami

IPC分类号： A61B3/16 ,  A61F9/007 ,  A61M1/00 ,  A61M27/00

摘要： A miniature, low power electronic pressure sensor with a first, oil-filled chamber to protect its microelectromechanical systems (MEMS) pressure sensitive membrane and a second chamber filled with saline or body fluids connected by tube into an organ in the body, such as an eyeball, that needs pressure sensing, is described. The tube carries pressure from a sensitive area within the organ to the electronic pressure sensor. The pressure sensor may communicate wirelessly with external readers and pass data to a server or other computer. Running alongside the tube is another tube for draining and pressure relief. The tubes, or cannulas, can share an opening into the organ in order to minimize the number of holes needed. The tubes may be molded into a single oval cross section, combined coaxially, or share a lumen for a portion that enters the wall of an organ so as to promote healing.