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1. (WO2017040366) ARTERIOVENOUS FISTULA IMPLANT EFFECTIVE FOR INDUCING LAMINAR BLOOD FLOW
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Pub. No.: WO/2017/040366 International Application No.: PCT/US2016/049185
Publication Date: 09.03.2017 International Filing Date: 29.08.2016
IPC:
A61M 1/36 (2006.01) ,A61M 1/24 (2006.01) ,A61F 2/06 (2013.01) ,A61B 17/11 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
36
Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
M
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
1
Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
14
Dialysis systems; Artificial kidneys; Blood oxygenators
16
with membranes
22
sheet-like
24
spirally wound
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
02
Prostheses implantable into the body
04
Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
06
Blood vessels
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
03
for closing wounds, or holding wounds closed, e.g. surgical staples; Accessories for use therewith
11
for performing anastomosis; Buttons for anastomosis
Applicants:
UNIVERSITY OF CINCINNATI [US/US]; 51 Goodman Drive Suite 240 Cincinnati, Ohio 45221, US
Inventors:
SAUM, Keith Louis; US
ROY-CHAUDHURY, Prabir; US
CAMPOS-NACIFF, Begona; US
CELDRAN-BONAFONTE, Diego; US
Agent:
EVERETT, Denise M.; US
LORENTZ, Joshua A.; US
OBERHAUS, Geoffrey L.; US
TENT, Brian A.; US
LIVINGSTON, Jennifer L.; US
SCHABOWSKY, Richard-Henry; US
NEAL, Cynthia A.; US
RERICHA, Nicholaus R.; US
Priority Data:
62/211,19828.08.2015US
Title (EN) ARTERIOVENOUS FISTULA IMPLANT EFFECTIVE FOR INDUCING LAMINAR BLOOD FLOW
(FR) IMPLANT DE FISTULE ARTÉRIO-VEINEUSE EFFICACE POUR INDUIRE UN ÉCOULEMENT DE SANG LAMINAIRE
Abstract:
(EN) A vascular implant device configured to decrease turbulence in blood flow through an arteriovenous fistula is described. The implant includes an arterial section having a straight hollow tube, a venous section having a curved hollow tube divided into an orthogonal portion at the juncture of the arterial section, a curved portion, and a straight extension portion, and having a continual lumen and lumen surface. The curved portion curves approximately 90 degrees with respect to the arterial section, and the extension portion extends substantially parallel to the arterial section. A plurality of flow-conditioning tabs are located along the lumen surface in arrangements precisely designed to convert the turbulent blood flow that enters the venous section into substantially laminar flow, and to minimize oscillatory shear stress on the venous endothelium as the blood flow exits the device and enters the vein.
(FR) La présente invention concerne un dispositif d'implant vasculaire conçu pour diminuer la turbulence dans l'écoulement sanguin à travers une fistule artério-veineuse. L'implant comprend une section artérielle ayant un tube creux rectiligne, une section veineuse ayant un tube creux incurvé divisé en une partie orthogonale à la jonction de la section artérielle, une partie incurvée, et une partie de'extension droite, et ayant une lumière et une surface de lumière continues. La partie incurvée se courbe d'approximativement 90 degrés par rapport à la section artérielle, et la partie d'extension s'étend sensiblement parallèle à la section artérielle. Une pluralité de languettes de conditionnement d'écoulement sont situées le long de la surface de lumière dans des agencements précisément conçus pour convertir l'écoulement turbulent de sang veineux qui pénètre dans la section en écoulement sensiblement laminaire, et pour réduire au minimum la contrainte de cisaillement oscillatoire au niveau de l'endothélium veineux lorsque l'écoulement de sang sort du dispositif et pénètre dans la veine.
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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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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)