CPC A61M 60/148 (2021.01) [A61M 60/126 (2021.01); A61M 60/13 (2021.01); A61M 60/135 (2021.01); A61M 60/216 (2021.01); A61M 60/237 (2021.01); A61M 60/414 (2021.01); A61M 60/419 (2021.01); A61M 60/422 (2021.01); A61M 60/531 (2021.01); A61M 60/808 (2021.01); A61M 60/818 (2021.01); A61M 60/825 (2021.01); A61M 60/829 (2021.01); A61M 60/857 (2021.01); A61M 60/894 (2021.01); A61M 60/896 (2021.01); B05D 1/02 (2013.01); F04D 29/382 (2013.01); F04D 29/526 (2013.01); F04D 29/545 (2013.01); A61M 60/122 (2021.01); A61M 60/205 (2021.01); A61M 2205/0216 (2013.01); A61M 2205/3344 (2013.01); A61M 2230/30 (2013.01)] | 9 Claims |
1. A method, comprising:
manufacturing an impeller by:
forming a structure having first and second bushings at proximal and distal ends of the structure, the first and second bushings being connected to one another by at least one elongate element;
causing the at least one elongate element to radially expand and form at least one helical elongate element, at least partially by axially compressing the structure; and
coupling an elastomeric material to the at least one helical elongate element, such that the at least one helical elongate element with the elastomeric material coupled thereto defines a blade of the impeller, the coupling being performed such that a layer of the material is disposed around a radially outer edge of the at least one helical elongate element, the layer of material forming the effective edge of the impeller blade;
the method comprising performing a step to enhance bonding of the elastomeric material to the at least one helical elongate element in a manner that does not cause a protrusion from the effective edge of the impeller blade.
|