公开(公告)号：US10751465B2

公开(公告)日：2020-08-25

申请号：US15299913

申请日：2016-10-21

Applicant: BAYER HEALTHCARE LLC

Inventor： Michael A. Riley ,  Ralph H. Schriver ,  William D. Barlow ,  Thomas P. Joyce ,  Andreas Maihoefer

IPC: A61M1/00 ,  A61M31/00 ,  A61M37/00 ,  A61B6/00 ,  A61M5/14 ,  A61M5/00 ,  A61M5/145 ,  A61M5/168 ,  A61M5/178 ,  A61M5/142

Abstract: A multi-fluid injector system and methods of operation thereof are presented. One embodiment of such a fluid injector system includes an automatic refill procedure for a fluid injector system comprising a fluid injector and an operably engaged syringe. The procedure includes the step of determining, using an electronic control device operably controlling the fluid injector system, whether a fluid injection procedure involving the syringe is impending. If the electronic control device determines that the fluid injection procedure is not impending, such that the automatic refill will not interfere with the fluid injection procedure, an automatic refill of the syringe is initiated.

公开(公告)号：US11278853B2

公开(公告)日：2022-03-22

申请号：US16013050

申请日：2018-06-20

Applicant: BAYER HEALTHCARE LLC

Inventor： Ralph H. Schriver ,  Andreas Maihoefer ,  James A. Dedig ,  Michael A. Spohn ,  Herbert M. Grubic ,  Michael J. Swantner ,  Adam Caruso

IPC: G01F11/02 ,  B01F5/06 ,  A61M5/00 ,  A61M5/168 ,  A61M39/10 ,  B01F5/02 ,  B01F7/00 ,  B01F13/00 ,  B01F3/08 ,  B01F5/00 ,  B01F15/00 ,  A61M39/00

Abstract: A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

公开(公告)号：US20220184568A1

公开(公告)日：2022-06-16

申请号：US17686929

申请日：2022-03-04

Applicant: Bayer Healthcare LLC

Inventor： Ralph Schriver ,  Andreas Maihoefer ,  James Dedig ,  Michael Spohn ,  Herbert Grubic ,  Michael Swantner ,  Adam Caruso

IPC: B01F25/431 ,  A61M5/00 ,  A61M5/168 ,  A61M39/10 ,  B01F23/45 ,  B01F25/23 ,  B01F25/00 ,  B01F25/433 ,  B01F25/452 ,  B01F25/4314 ,  B01F25/432 ,  B01F27/50 ,  B01F27/55 ,  B01F27/111 ,  B01F33/501 ,  B01F35/51

Abstract: A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described. The method includes predicting a first capacitance volume of a first syringe comprising a first medical fluid and a second capacitance volume of a second syringe comprising a second medical fluid with a first capacitance correction factor and a second capacitance correction factor, respectively, selecting a ratio of the first medical fluid and the second medical fluid to be administered to a patient in the dual flow injection, determining a relative acceleration ratio of a first piston of the first syringe and a second piston of a second syringe based on the predicted first capacitance volume and the predicted second capacitance volume, wherein the relative acceleration ratio is selected to maintain the selected ratio of the first medical fluid and the second medical fluid during the dual flow injection, and injecting a mixture of a first medical fluid and a second medical fluid having the selected ratio with the powered injection system.

公开(公告)号：US10029220B2

公开(公告)日：2018-07-24

申请号：US15417945

申请日：2017-01-27

Applicant: BAYER HEALTHCARE LLC

Inventor： Ralph H. Schriver ,  Andreas Maihoefer ,  James A. Dedig ,  Michael A. Spohn ,  Herbert M. Grubic ,  Michael J. Swantner ,  Adam Caruso

IPC: B01F5/06 ,  B01F15/00 ,  B01F3/08 ,  A61M5/00 ,  A61M5/168 ,  A61M39/10 ,  B01F5/00 ,  A61M39/00

Abstract: A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.