WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2018017716) ROTARY SEAL FOR CANTILEVERED ROTOR PUMP AND METHODS FOR AXIAL FLOW BLOOD PUMPING
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/017716 International Application No.: PCT/US2017/042858
Publication Date: 25.01.2018 International Filing Date: 19.07.2017
IPC:
A61M 1/12 (2006.01) ,A61M 1/10 (2006.01)
Applicants: TC1 LLC[US/US]; One St. Jude Medical Drive St. Paul, Minnesota 55117, US
Inventors: HODGES, William, V.; US
MCEACHERN, Ian; US
LEE, Eric T.; US
Agent: SHURTZ, Kenneth R.; US
BAINS, Nena; US
Priority Data:
62/365,30521.07.2016US
Title (EN) ROTARY SEAL FOR CANTILEVERED ROTOR PUMP AND METHODS FOR AXIAL FLOW BLOOD PUMPING
(FR) POMPE À ROTOR EN PORTE-À-FAUX ET MÉTHODES DE POMPE DE SANG À ÉCOULEMENT AXIAL.
Abstract: front page image
(EN) 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.
(FR) L'invention porte sur une pompe de sang ayant des joints rotatifs améliorés pour sceller un palier supportant le rotor. Les rotors ont un support en porte-à-faux et un roulement étanche, à l'extérieur du trajet d'écoulement sanguin, de manière à éviter la formation de thrombus provoqués par le contact du sang avec le roulement. Le joint rotatif comprend un premier et un second joint de face. Ils sont préchargés avec un élément de compliance orientable, incorporé dans le boîtier de la pompe, ou dans une paire d'aimants. Les joints rotatifs ont un raccord étanche entre des composants ou un matériel de remplissage bio-absorbable pour sceller l'interface entre la tige de rotor, et le boîtier de la pompe pour sceller l'ensemble de palier du fluide s'écoulant à travers la pompe.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)