公开(公告)号：US20180311424A1

公开(公告)日：2018-11-01

申请号：US16019205

申请日：2018-06-26

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/043 ,  F04D29/047 ,  F04D29/62 ,  F04D29/42 ,  F04D13/06 ,  F04D1/00 ,  F04D29/22 ,  F04D29/041 ,  F16C32/04 ,  F04D29/048

CPC classification number: A61M1/1015 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/1036 ,  A61M1/122 ,  F04D1/00 ,  F04D13/06 ,  F04D13/0666 ,  F04D29/0413 ,  F04D29/043 ,  F04D29/047 ,  F04D29/0473 ,  F04D29/048 ,  F04D29/22 ,  F04D29/426 ,  F04D29/628 ,  F16C32/044 ,  F16C2316/18 ,  Y10S415/90

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US10758654B2

公开(公告)日：2020-09-01

申请号：US16352704

申请日：2019-03-13

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/041 ,  F04D29/047 ,  F04D29/22 ,  F04D29/42 ,  F04D29/048 ,  A61M1/12

Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.

公开(公告)号：US10265449B2

公开(公告)日：2019-04-23

申请号：US15335369

申请日：2016-10-26

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/041 ,  F04D29/047 ,  F04D29/22 ,  F04D29/42 ,  F04D29/048 ,  A61M1/12

Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.

公开(公告)号：US20190336663A1

公开(公告)日：2019-11-07

申请号：US16510707

申请日：2019-07-12

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D13/06 ,  F04D29/048 ,  F04D29/047 ,  F04D29/041 ,  F04D29/62

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US10391215B2

公开(公告)日：2019-08-27

申请号：US16019205

申请日：2018-06-26

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/048 ,  F04D13/06 ,  F04D29/047 ,  F04D29/041 ,  F04D29/62 ,  F16C32/04 ,  F04D1/00 ,  F04D29/22 ,  F04D29/42 ,  F04D29/043 ,  A61M1/12

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US09844617B2

公开(公告)日：2017-12-19

申请号：US15385364

申请日：2016-12-20

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  A61M1/12 ,  F04D29/048 ,  F04D13/06 ,  F04D29/047 ,  F16C32/04 ,  F04D29/041 ,  F04D1/00 ,  F04D29/22 ,  F04D29/42 ,  F04D29/62 ,  F04D29/043

CPC classification number: A61M1/1036 ,  A61M1/101 ,  A61M1/1013 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/122 ,  F04D1/00 ,  F04D13/06 ,  F04D13/0666 ,  F04D29/0413 ,  F04D29/043 ,  F04D29/047 ,  F04D29/0473 ,  F04D29/048 ,  F04D29/22 ,  F04D29/426 ,  F04D29/628 ,  F16C32/044 ,  F16C2316/18 ,  Y10S415/90

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US20200345909A1

公开(公告)日：2020-11-05

申请号：US16936107

申请日：2020-07-22

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/041 ,  F04D29/048 ,  F04D29/047 ,  F04D29/22 ,  F04D29/42

Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.

公开(公告)号：US20200345908A1

公开(公告)日：2020-11-05

申请号：US16931306

申请日：2020-07-16

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D13/06 ,  F04D29/047 ,  F04D29/048 ,  F04D29/041 ,  F04D29/62

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US10751454B2

公开(公告)日：2020-08-25

申请号：US16510707

申请日：2019-07-12

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D13/06 ,  F04D29/048 ,  F04D29/047 ,  F04D29/041 ,  F04D29/62 ,  A61M1/12 ,  F16C32/04 ,  F04D1/00 ,  F04D29/22 ,  F04D29/42 ,  F04D29/043

Abstract: Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the pumping chamber. A spindle magnet assembly includes first and second magnets disposed within the spindle. The first and second magnets are arranged proximate each other with their respective magnetic vectors opposing each other. The lack of mechanical contact bearings enables longer life pump operation and less damage to working fluids such as blood.

公开(公告)号：US20190209754A1

公开(公告)日：2019-07-11

申请号：US16352704

申请日：2019-03-13

Applicant: TC1 LLC

Inventor： Richard K. Wampler ,  David M. Lancisi

IPC: A61M1/10 ,  F04D29/047 ,  F04D29/22 ,  F04D29/42 ,  F04D29/041 ,  F04D29/048

CPC classification number: A61M1/1036 ,  A61M1/101 ,  A61M1/1012 ,  A61M1/1015 ,  A61M1/1017 ,  A61M1/1031 ,  A61M1/122 ,  F04D29/0413 ,  F04D29/0473 ,  F04D29/0476 ,  F04D29/048 ,  F04D29/2266 ,  F04D29/426

Abstract: The present invention provides a rotary blood pump with both an attractive magnetic axial bearing and a hydrodynamic bearing. In one embodiment according to the present invention, a rotary pump includes an impeller assembly supported within a pump housing assembly by a magnetic axial bearing and a hydrodynamic bearing. The magnetic axial bearing includes at least two magnets oriented to attract each other. One magnet is positioned in the spindle of the pump housing while the other is disposed within the rotor assembly, proximate to the spindle. In this respect, the two magnets create an attractive axial force that at least partially maintains the relative axial position of the rotor assembly. The hydrodynamic bearing is formed between sloping surfaces that form tight clearances below the rotor assembly.