公开(公告)号：US20230285666A1

公开(公告)日：2023-09-14

申请号：US17999592

申请日：2021-06-16

Applicant: BAYER HEALTHCARE LLC

Inventor： KEVIN COWAN ,  JAMES DEDIG ,  SHAHAB TAHERI ,  ABHINAV SRIVASTAVA ,  BARRY TUCKER ,  MICHAEL SWANTNER ,  CHRISTOPHER CAPONE ,  JAROSLOW WLODARCZYK ,  ANDREW OSAN

IPC: A61M5/145 ,  A61M5/315 ,  A61M5/36

CPC classification number: A61M5/14546 ,  A61M5/31515 ,  A61M5/365 ,  A61M2005/14553

Abstract: A plunger for use with a syringe includes a plunger body defining a central longitudinal axis and having a proximal end, a distal end, and a circumferential sidewall connecting the proximal end and the distal end. The plunger further includes at least one retaining member associated with and extending proximally from the plunger body. The at least one retaining member has a first end connected to the plunger body, a second end proximal to the first end and radially and resiliently deflectable relative to the first end, and at least one catch on the second end. A fluid injector system includes a piston having a plunger engagement mechanism configured for interacting with the at least one retaining element of the plunger to releasably engage the plunger for reciprocally driving the plunger within a barrel of the syringe.

公开(公告)号：US20220387703A1

公开(公告)日：2022-12-08

申请号：US17820381

申请日：2022-08-17

Applicant: BAYER HEALTHCARE LLC

Inventor： KEVIN COWAN ,  ARTHUR UBER, III ,  MICHAEL SPOHN ,  BARRY TUCKER ,  EDWARD RHINEHART

IPC: A61M5/145 ,  A61M5/00 ,  A61M5/14

Abstract: A syringe retaining element protruding radially outward relative to an outer surface of a sidewall of a barrel of a syringe is described. The syringe retaining element is configured for interacting with a locking mechanism of a syringe port of a fluid injector to releasably retain the ring. Features of the syringe retaining element allow the syringe to be axially ejected from the syringe port upon rotation of the syringe. Other features of the syringe retaining element allow the syringe to engage the locking mechanism of the syringe port and rotationally guide the syringe into self-orienting alignment with the locking mechanism.

公开(公告)号：US20210138148A1

公开(公告)日：2021-05-13

申请号：US17157506

申请日：2021-01-25

Applicant: BAYER HEALTHCARE LLC

Inventor： MICHAEL SPOHN ,  RALPH SCHRIVER ,  ARTHUR UBER, III ,  RONALD HELLER ,  KEVIN COWAN ,  BARRY TUCKER ,  EDWARD RHINEHART ,  TIMOTHY NEWING

IPC: A61M5/14 ,  A61M5/145 ,  A61M5/00

Abstract: A method of maintaining an overall flow rate during a sequential delivery of at least two fluids to a patient's blood vessel includes delivering at least a first fluid into the patient's blood vessel at a first flow rate, delivering at least a second fluid into the patient's blood vessel at a second flow rate, and adjusting at least one of a first flow profile of the first flow rate and a second flow profile of the second flow rate to dampen a transient increase in the overall flow rate during a transition between delivering one of the first fluid and the second fluid to delivering the other of the first fluid and the second fluid.

公开(公告)号：US20200046894A1

公开(公告)日：2020-02-13

申请号：US16341285

申请日：2017-10-16

Applicant: BAYER HEALTHCARE LLC

Inventor： KEVIN COWAN ,  MICHAEL SPOHN ,  BARRY TUCKER ,  JAMES DEDIG ,  GREGORY JOHNSTON ,  MICHAEL MCDERMOTT ,  DAVID BERRY ,  ADAM STEEGE ,  KEITH LIPFORD ,  CHET LARROW ,  MARIANO MUMPOWER ,  DANICA GORDON

IPC: A61M5/00 ,  A61M5/145 ,  A61M5/142

Abstract: An engagement mechanism associated with a reciprocally movable piston of a fluid injector is configured for releasably engaging an engagement portion at a proximal end of a rolling diaphragm syringe having a flexible sidewall configured for rolling upon itself when acted upon by the piston. The engagement mechanism has a plurality of engagement elements reversibly and pivotally movable about a pivot pin relative to the engagement portion of the syringe between a first position, where the plurality of engagement elements are disengaged from the engagement portion of the syringe, and a second position, where the plurality of engagement elements are pivotally movable about the pivot pin in a radially inward direction to engage with the engagement portion of the syringe. The engagement mechanism further has a drive mechanism for moving the plurality of engagement elements between the first position and the second position.

公开(公告)号：US20190083699A1

公开(公告)日：2019-03-21

申请号：US16081202

申请日：2017-03-03

Applicant: BAYER HEALTHCARE LLC

Inventor： MICHAEL SPOHN ,  RALPH SCHRIVER ,  ARTHUR UBER ,  RONALD HELLER ,  KEVIN COWAN ,  BARRY TUCKER ,  EDWARD RHINEHART ,  TIMOTHY NEWING

IPC: A61M5/14 ,  A61M5/145 ,  A61M5/00

Abstract: A method of maintaining an overall flow rate during a sequential delivery of at least two fluids to a patient's blood vessel includes delivering at least a first fluid into the patient's blood vessel at a first flow rate, delivering at least a second fluid into the patient's blood vessel at a second flow rate, and adjusting at least one of a first flow profile of the first flow rate and a second flow profile of the second flow rate to dampen a transient increase in the overall flow rate during a transition between delivering one of the first fluid and the second fluid to delivering the other of the first fluid and the second fluid.