公开(公告)号：US20230201455A1

公开(公告)日：2023-06-29

申请号：US18171643

申请日：2023-02-20

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Farzad Forouzandeh ,  David Borkholder ,  Robert Frisina ,  Joseph Walton ,  Xiaoxia Zhu

IPC: A61M5/142 ,  A61M5/145 ,  A61M5/20 ,  A61M39/06

CPC classification number: A61M5/14276 ,  A61M5/145 ,  A61M5/204 ,  A61M5/14224 ,  A61M5/14593 ,  A61M39/06 ,  A61M2039/0072

Abstract: In one embodiment, a fluid storage device includes a rigid outer housing that defines a septum cavity, a reservoir cavity, and a channel that extends between the two cavities, the outer housing further defining an outlet in fluid communication with the reservoir cavity, a septum provided within the septum cavity, the septum being made of an elastic polymer and facilitating refilling of the fluid storage device, and a thin, collapsible membrane that does not generate significant restoring forces when it is deformed as fluid is drawn from the reservoir cavity and, therefore, does not completely or partially return to its initial non-deformed shape even if the outlet of the device remains open after doses are administered.

公开(公告)号：US11603254B1

公开(公告)日：2023-03-14

申请号：US17074258

申请日：2020-10-19

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Farzad Forouzandeh ,  David Borkholder ,  Robert Frisina ,  Joseph Walton ,  Xiaoxia Zhu

IPC: B65D83/14 ,  F04B43/00 ,  F04B43/06

Abstract: A miniature pump including a first chamber, a second chamber, a deformable membrane provided within the second chamber that divides the second chamber into first and second sub-chambers, the second sub-chamber defining a reservoir configured to contain liquid to be dispensed, a passage that connects the first chamber to the first sub-chamber, and an outlet in fluid communication with the reservoir, wherein pressurized fluid within the first internal chamber flows through the passage and into the first sub-chamber to compress the deformable membrane and cause liquid contained within the reservoir to flow out from the reservoir through the outlet and wherein the deformable membrane does not generate significant restoring forces when it is deformed and, therefore, will not return to its initial undeformed shape unless the reservoir is refilled.

公开(公告)号：US20230242330A1

公开(公告)日：2023-08-03

申请号：US18121511

申请日：2023-03-14

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Farzad Forouzandeh ,  David Borkholder ,  Robert Frisina ,  Joseph Walton ,  Xiaoxia Zhu

IPC: B65D83/14 ,  F04B43/00 ,  F04B43/06

CPC classification number: B65D83/14 ,  F04B43/06 ,  F04B43/0054

Abstract: A miniature pump including a first chamber, a second chamber, a deformable membrane provided within the second chamber that divides the second chamber into first and second sub-chambers, the second sub-chamber defining a reservoir configured to contain liquid to be dispensed, a passage that connects the first chamber to the first sub-chamber, and an outlet in fluid communication with the reservoir, wherein pressurized fluid within the first internal chamber flows through the passage and into the first sub-chamber to compress the deformable membrane and cause liquid contained within the reservoir to flow out from the reservoir through the outlet and wherein the deformable membrane does not generate significant restoring forces when it is deformed and, therefore, will not return to its initial undeformed shape unless the reservoir is refilled.

公开(公告)号：US11583627B1

公开(公告)日：2023-02-21

申请号：US16657981

申请日：2019-10-18

Applicant: UNIVERSITY OF SOUTH FLORIDA

Inventor： Farzad Forouzandeh ,  David Borkholder ,  Robert Frisina ,  Joseph Walton ,  Xiaoxia Zhu

IPC: A61M5/142 ,  A61M5/145 ,  A61M5/20 ,  A61M39/06 ,  A61M39/00 ,  A61M39/02

Abstract: In one embodiment, a fluid storage device includes a rigid outer housing that defines a septum cavity, a reservoir cavity, and a channel that extends between the two cavities, the outer housing further defining an outlet in fluid communication with the reservoir cavity, a septum provided within the septum cavity, the septum being made of an elastic polymer and facilitating refilling of the fluid storage device, and a thin, collapsible membrane that does not generate significant restoring forces when it is deformed as fluid is drawn from the reservoir cavity and, therefore, does not completely or partially return to its initial non-deformed shape even if the outlet of the device remains open after doses are administered.