Apparatus and method for electrostatic coating of an abluminal stent surface
First Claim
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1. A stent mandrel fixture to support a stent during application of a charged coating substance to the stent, comprising:
- a first mandrel component in conductive contact with the stent, the first mandrel component including a support element to contact one end of the stent and a lock element to contact the other end of the stent; and
a second mandrel component connecting the support element to the lock element and positioned at least partially within a bore of the stent, the second mandrel component being spaced from the walls of the bore, having an outermost surface exposed to the walls of the bore, and being made from a nonconductive material or being coated with a nonconductive material.
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Abstract
A stent mandrel fixture for supporting a stent during the electrostatic application of a coating substance is provided.
959 Citations
18 Claims
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1. A stent mandrel fixture to support a stent during application of a charged coating substance to the stent, comprising:
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a first mandrel component in conductive contact with the stent, the first mandrel component including a support element to contact one end of the stent and a lock element to contact the other end of the stent; and a second mandrel component connecting the support element to the lock element and positioned at least partially within a bore of the stent, the second mandrel component being spaced from the walls of the bore, having an outermost surface exposed to the walls of the bore, and being made from a nonconductive material or being coated with a nonconductive material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A fixture to support a stent during application of a charged substance to the stent, comprising:
- a mandrel arm including a first section having a first diameter, the first section being in conductive contact with an end of the stent; and
a second section having a second diameter, less than the first diameter, disposed coaxially with the first section, extending at least partially through a longitudinal bore of the stent and spaced from the walls of the bore, the second section being configured to receive the charged substance on its outermost surface so as to minimize or eliminate the wrap around effect of the charged substance around stent struts to prevent any substance from being applied to an inner side of the stent or to reduce the amount of substance applied to an inner side of the stent. - View Dependent Claims (14, 15, 16, 17, 18)
- a mandrel arm including a first section having a first diameter, the first section being in conductive contact with an end of the stent; and
Specification