Manufacturing methods for covering endoluminal prostheses
First Claim
1. A method for electrospinning comprising:
- providing a target and an electrospinning apparatus;
the target comprising a first surface and an opposing second surface;
the electrospinning apparatus comprising a mandrel, a mask including an aperture, a reservoir loaded with a solution, an orifice fluidly coupled to the reservoir, an energy source electrically coupled to the orifice and the mandrel and further comprising applying a first electrical potential with the energy source between the orifice and the mandrel and a second electrical potential to the mask where the second electrical potential is less that the first electrical potential;
locating the mandrel adjacent the target second surface, locating the orifice at a distance from the target first surface, and locating the mask intermediate the orifice and the target first surface;
electrospinning the solution through the mask aperture onto the target first surface; and
where the first electrical potential is between about 10 kV and about 30 kV and the second electrical potential is between about 5 kV and about 18 kV.
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0 Petitions
Accused Products
Abstract
The disclosure relates to a method for coating a target. The method includes providing a target and an electrospinning apparatus. The target comprises a first surface and an opposing second surface. The electrospinning apparatus comprises a mandrel, a mask including an aperture, a reservoir loaded with a solution, and an orifice fluidly coupled to the reservoir. The mandrel is located adjacent the target second surface. The orifice is located at a distance from the target first surface. The mask is located intermediate the orifice and the target first surface. The solution is electrospun through the mask aperture onto the target first surface. In one example the target is an endoluminal prosthesis.
119 Citations
15 Claims
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1. A method for electrospinning comprising:
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providing a target and an electrospinning apparatus; the target comprising a first surface and an opposing second surface; the electrospinning apparatus comprising a mandrel, a mask including an aperture, a reservoir loaded with a solution, an orifice fluidly coupled to the reservoir, an energy source electrically coupled to the orifice and the mandrel and further comprising applying a first electrical potential with the energy source between the orifice and the mandrel and a second electrical potential to the mask where the second electrical potential is less that the first electrical potential; locating the mandrel adjacent the target second surface, locating the orifice at a distance from the target first surface, and locating the mask intermediate the orifice and the target first surface; electrospinning the solution through the mask aperture onto the target first surface; and where the first electrical potential is between about 10 kV and about 30 kV and the second electrical potential is between about 5 kV and about 18 kV. - View Dependent Claims (2, 3, 4, 5, 13, 14)
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6. A method for preparing an endoluminal prosthesis comprising:
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providing an endoluminal prosthesis and an electrospinning apparatus; the endoluminal prosthesis defining an interior lumen with a proximal end, a distal end, a first surface and an opposing second surface; the electrospinning apparatus comprising a mandrel, a mask including an aperture, a reservoir loaded with a solution, an orifice fluidly coupled to the reservoir, and an energy source electrically coupled to the orifice and the mandrel; locating the mandrel at least partially within the endoluminal prosthesis lumen, locating the orifice at a distance from the endoluminal prosthesis first surface, and locating the mask intermediate the orifice and the endoluminal prosthesis first surface; applying a first electrical potential with the energy source to the orifice and the mask, and grounding the mandrel; applying a second electrical potential to the mask, where the second electrical potential is less than the first electrical potential; electrospinning the solution through the mask aperture onto the endoluminal prosthesis first surface; where the first electrical potential is between about 10 kV to about 30 kV and the second electrical potential is between about 5 kV to about 18 kV. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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15. A method for preparing an endoluminal prosthesis comprising:
providing an endoluminal prosthesis and an electrospinning apparatus; the endoluminal prosthesis defining an interior lumen with a proximal end, a distal end, a first surface and an opposing second surface; the electrospinning apparatus comprising a mandrel, a mask including an aperture, a reservoir loaded with a solution, an orifice fluidly coupled to the reservoir, a ground plane, and an energy source electrically coupled to the orifice, the mandrel and the mask; locating the mandrel at least partially within the endoluminal prosthesis lumen and adjacent the endoluminal prosthesis second surface, locating the orifice between about 5 inches to about 8 inches from the endoluminal prosthesis first surface, and locating the mask intermediate the orifice and the endoluminal prosthesis first surface and between about 2 inches to about 4 inches from the orifice; applying a first electrical potential between about 10 kV to about 30 kV with the energy source to the orifice and a second electrical potential between about 5 kV to about 18 kV with the energy source to the mask; grounding the mandrel and the ground plane; moving the orifice relative to the endoluminal prosthesis; electrospinning the solution through the mask aperture onto the endoluminal prosthesis first surface.
Specification