Pressure chamber and apparatus for loading material into a stent strut
First Claim
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1. An apparatus for loading material into a stent strut, the apparatus comprising:
- a pressure chamber;
a stent support, wherein either one or both of the pressure chamber and the stent support are configured to translate, in a linear translation direction, relative to the other;
a gas supply configured to move gas through the pressure chamber in the linear translation direction; and
an injector configured to connect to a stent and deliver material into a hollow strut of the stent,wherein the pressure chamber comprises a narrow segment, a wide segment, and an internal space extending from the narrow segment to the wide segment, and wherein the stent support extends into the internal space, and the internal space has a cross-sectional area that increases from the narrow segment to the wide segment.
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Abstract
An apparatus for loading material into a stent strut can comprise a chamber in which a pressure gradient is formed when gas moves through the pressure chamber. While injecting material into a lumen within the stent strut, the pressure gradient inhibits material from leaking out of side holes to the lumen.
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Citations
15 Claims
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1. An apparatus for loading material into a stent strut, the apparatus comprising:
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a pressure chamber; a stent support, wherein either one or both of the pressure chamber and the stent support are configured to translate, in a linear translation direction, relative to the other; a gas supply configured to move gas through the pressure chamber in the linear translation direction; and an injector configured to connect to a stent and deliver material into a hollow strut of the stent, wherein the pressure chamber comprises a narrow segment, a wide segment, and an internal space extending from the narrow segment to the wide segment, and wherein the stent support extends into the internal space, and the internal space has a cross-sectional area that increases from the narrow segment to the wide segment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification