公开(公告)号：US12178422B2

公开(公告)日：2024-12-31

申请号：US17894861

申请日：2022-08-24

Applicant: The Regents of the University of California

Inventor： Shanglei Liu ,  Mohamad Ramzi Abdul Majit ,  Santiago Horgan ,  Michael Tolley ,  William Weston-Dawkes ,  Esmeralda Ochoa

IPC: A61B17/02 ,  A61B17/00

Abstract: A retraction device, e.g., a programmable stiffness state tissue displacement device, for providing increased visibility during an operation is provided. The device includes one or more strips of compliant jammable layer components connected in parallel, and encapsulated within a flexible envelope such that each of the one or more strips of compliant jammable layer components are pneumatically connected. The device further includes a negative pressure pump coupled to the flexible envelope, such that the application of negative pressure to the flexible envelope by the negative pressure pump causes the one or more strips of compliant jammable layer components to jam and thereby transition the retraction device from a malleable state to a rigid state.

公开(公告)号：US11832924B2

公开(公告)日：2023-12-05

申请号：US16482190

申请日：2018-02-01

Applicant: The Regents of the University of California

Inventor： Shanglei Liu ,  Santiago Horgan ,  David Owens

IPC: A61B5/0275 ,  A61B5/00 ,  A61B1/00 ,  A61B1/04 ,  A61K49/00

CPC classification number: A61B5/0275 ,  A61B5/0071 ,  A61B5/0084 ,  A61B5/725 ,  A61B5/742 ,  A61B1/00096 ,  A61B1/043 ,  A61K49/0034

Abstract: Methods for dynamically evaluating blood flow are provided. The method may include injecting Indocyanine Green (ICG) into the bloodstream of a patient, such that the ICG perfuses into a tissue of the patient. ICG images of the tissue may be recorded and stored, such that a user may select a range of stored ICG images. Data indicative of the selected range of stored ICG images is automatically normalized and background-filtering, and a dynamic representation of the ICG perfusion may be generated as a function of time based on the normalized and filtered data. As such, a clinical decision may be made based on the dynamic representation of the ICG perfusion.

公开(公告)号：US11504108B2

公开(公告)日：2022-11-22

申请号：US16624844

申请日：2018-06-22

Applicant: The Regents of the University of California

Inventor： Shanglei Liu ,  Mohamad Ramzi Abdul Majit ,  Santiago Horgan ,  Michael Tolley ,  William Weston-Dawkes ,  Esmeralda Ochoa

IPC: A61B1/32 ,  A61B17/02 ,  A61B17/00

Abstract: A retraction device, e.g., a programmable stiffness state tissue displacement device, for providing increased visibility during an operation is provided. The device includes one or more strips of compliant jammable layer components connected in parallel, and encapsulated within a flexible envelope such that each of the one or more strips of compliant jammable layer components are pneumatically connected. The device further includes a negative pressure pump coupled to the flexible envelope, such that the application of negative pressure to the flexible envelope by the negative pressure pump causes the one or more strips of compliant jammable layer components to jam and thereby transition the retraction device from a malleable state to a rigid state.

公开(公告)号：US20220401095A1

公开(公告)日：2022-12-22

申请号：US17894861

申请日：2022-08-24

Applicant: The Regents of the University of California

Inventor： Shanglei Liu ,  Mohamad Ramzi Abdul Majit ,  Santiago Horgan ,  Michael Tolley ,  William Weston-Dawkes ,  Esmeralda Ochoa

IPC: A61B17/02

Abstract: A retraction device, e.g., a programmable stiffness state tissue displacement device, for providing increased visibility during an operation is provided. The device includes one or more strips of compliant jammable layer components connected in parallel, and encapsulated within a flexible envelope such that each of the one or more strips of compliant jammable layer components are pneumatically connected. The device further includes a negative pressure pump coupled to the flexible envelope, such that the application of negative pressure to the flexible envelope by the negative pressure pump causes the one or more strips of compliant jammable layer components to jam and thereby transition the retraction device from a malleable state to a rigid state.

公开(公告)号：US20200245995A1

公开(公告)日：2020-08-06

申请号：US16624844

申请日：2018-06-22

Applicant: Esmeralda Ochoa ,  The Regents of the University of California

Inventor： Shanglei Liu ,  Mohamad Ramzi Abdul Majit ,  Santiago Horgan ,  Michael Tolley ,  William Weston-Dawkes ,  Esmeralda Ochoa

IPC: A61B17/02

Abstract: A retraction device, e.g., a programmable stiffness state tissue displacement device, for providing increased visibility during an operation is provided. The device includes one or more strips of compliant jammable layer components connected in parallel, and encapsulated within a flexible envelope such that each of the one or more strips of compliant jammable layer components are pneumatically connected. The device further includes a negative pressure pump coupled to the flexible envelope, such that the application of negative pressure to the flexible envelope by the negative pressure pump causes the one or more strips of compliant jammable layer components to jam and thereby transition the retraction device from a malleable state to a rigid state.