(19)
(11) EP 3 437 668 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
15.05.2019 Bulletin 2019/20

(43) Date of publication:
06.02.2019 Bulletin 2019/06

(21) Application number: 17184552.2

(22) Date of filing: 02.08.2017
(51) International Patent Classification (IPC): 
A61M 1/10(2006.01)
 A61M 1/12(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
MA MD

(30) Priority: 21.06.2017 EP 17177180

(71) Applicant: Abiomed Europe GmbH
52074 Aachen (DE)

(72) Inventors:
  • ABOULHOSN, Walid
    52074 Aachen (DE)
  • SIESS, Thorsten
    52074 Aachen (DE)
  • KIRCHHOFF, Frank
    52074 Aachen (DE)

(74) Representative: Klunker IP Patentanwälte PartG mbB 
Destouchesstraße 68
80796 München
80796 München (DE)

   


(54) CANNULA FOR INTRAVASCULAR BLOOD PUMP


(57) A method of manufacturing a cannula (4) for an intravascular blood pump comprises the steps of forming a first axial section (13) and a second axial section (15) of an elongate tubular body of the cannula (4) by dispensing a first liquid material and a second liquid material, respectively, onto a mandrel (7) by means of at least one dispenser (8). The mandrel (7) is rotated and the dispenser (8) moves relative to the mandrel (7) in an axial direction during dispensing of the liquid materials. The first and second axial sections (13, 15) are formed so as to have different bending stiffnesses. The first and second liquid materials are dispensed onto the mandrel (7) such that the first and second liquid materials blend into each other to form a smooth transition area (14).