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1. (WO2018085329) BIOMIMETIC TRANSFEMORAL KNEE WITH GEAR MESH LOCKING MECHANISM
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Pub. No.: WO/2018/085329 International Application No.: PCT/US2017/059445
Publication Date: 11.05.2018 International Filing Date: 01.11.2017
IPC:
A61F 2/64 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
2
Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
50
Prostheses not implantable in the body
60
Artificial legs or feet or parts thereof
64
Knee joints
Applicants:
RAMAKRISHNAN, Tyagi [IN/US]; US (US)
REED, Kyle B. [US/US]; US (US)
UNIVERSITY OF SOUTH FLORIDA [US/US]; 3802 Spectrum Blvd. Suite 100 Tampa, Florida 33612, US (AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BE, BF, BG, BH, BJ, BN, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CL, CM, CN, CO, CR, CU, CY, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GT, GW, HN, HR, HU, ID, IE, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KM, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MC, MD, ME, MG, MK, ML, MN, MR, MT, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SI, SK, SL, SM, SN, ST, SV, SY, SZ, TD, TG, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, ZA, ZM, ZW)
Inventors:
RAMAKRISHNAN, Tyagi; US
REED, Kyle B.; US
Agent:
CHOKSI, Nilay J.; US
Priority Data:
62/416,47902.11.2016US
Title (EN) BIOMIMETIC TRANSFEMORAL KNEE WITH GEAR MESH LOCKING MECHANISM
(FR) GENOU TRANSFÉMORAL BIOMIMÉTIQUE DOTÉ D'UN MÉCANISME DE VERROUILLAGE PAR MISE EN PRISE D'ENGRENAGES
Abstract:
(EN) A prosthetic knee having a passive knee locking mechanism that uses the same four-bar mechanics found in a natural knee. The flexible four-bar mechanism guides the motion of the knee, aids in the return of the knee from full flexion to extension, and connects a femoral gear to a tibial gear. The gears have a circular radius and are connected using parallel links to keep the femur and tibia together when the knee is active. The knee stays locked throughout the stance phase. At toe off, no weight is applied on the prosthetic knee allowing the knee to flex. The flexible links are stretched, thereby increasing the stiffness in the springs, and at terminal swing phase, moments before heel strike, the flexible links in the four-bar mechanism snap back to the extended/locking position and lockout once the user applies his/her weight on the knee.
(FR) La présente invention concerne un genou prothétique ayant un mécanisme de verrouillage de genou passif qui utilise le même mécanisme à quatre barres que celui existant dans un genou naturel. Le mécanisme à quatre barres flexibles guide le mouvement du genou, aide au retour du genou de la flexion complète à l'extension, et relie un engrenage fémoral à un engrenage tibial. Les engrenages ont un rayon circulaire et sont reliés à l'aide de liaisons parallèles pour maintenir ensemble le fémur et le tibia lorsque le genou est actif. Le genou reste verrouillé dans toute la phase d'appui. Lorsque l'orteil est levé, aucun poids n'est appliqué sur le genou prothétique, ce qui permet au genou de fléchir. Les liaisons flexibles sont étirées, augmentant ainsi la rigidité dans les ressorts, et au niveau de la phase d'oscillation terminale, juste avant la frappe du talon, les liaisons flexibles dans le mécanisme à quatre barres s’encliquettent à nouveau dans la position étendue/de verrouillage et se verrouillent une fois que l'utilisateur porte son poids sur le genou.
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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)