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公开(公告)号：US10857273B2
公开(公告)日：2020-12-08
申请号：US16317809
申请日：2017-07-19
Applicant: TC1 LLC
Inventor： William V. Hodges , Ian McEachern , Eric T. Lee
Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
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公开(公告)号：US20210008262A1
公开(公告)日：2021-01-14
申请号：US16993043
申请日：2020-08-13
Applicant: TC1 LLC
Inventor： William V. Hodges , Ian McEachern , Eric T. Lee
Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
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公开(公告)号：US20220409879A1
公开(公告)日：2022-12-29
申请号：US17864194
申请日：2022-07-13
Applicant: TC1 LLC
Inventor： William V. Hodges , Ian McEachern , Eric T. Lee
IPC: A61M60/422 , A61M60/148 , A61M60/827 , A61M60/825 , A61M60/508 , A61M60/178 , A61M60/237 , A61M60/818 , A61M60/205
Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
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公开(公告)号：US11413443B2
公开(公告)日：2022-08-16
申请号：US16993043
申请日：2020-08-13
Applicant: TC1 LLC
Inventor： William V. Hodges , Ian McEachern , Eric T. Lee
IPC: A61M60/818 , A61M60/205 , A61M60/148 , A61M60/422
Abstract: Blood pump devices having improved rotary seals for sealing a bearing assembly supporting a rotor provided herein. Such rotary seals are particularly suited for use in blood pump devices that include rotors having cantilevered supported through a sealed mechanical bearing disposed outside a blood flow path of the device to avoid thrombus formation caused by blood contact with the bearing. The rotary seal can include a first and second face seal that are preloaded with a deflectable compliance member incorporated into the pump housing or a pair of magnets. Such rotary seals can instead or further utilize tight fitment between components or a bio-absorbable fill material to seal an interface between the rotor shaft and pump housing to seal the bearing assembly from fluid flowing through the pump.
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