Stent assembly with sensor
First Claim
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1. A stent and sensing device for placement in a body passage, comprising:
- a tubular stent member presenting an inner surface and an outer surface adapted to contact the walls of a body passage, said stent having a relatively contracted condition permitting placement of the stent member within said passage, and an expanded condition whereby said stent is adapted to contact said body passage walls,said stent member being a flexible sheet wound into a multiple layer roll having said contracted and expanded conditions, said sheet having a spring force so that said sheet is urged toward the expanded condition thereof, said roll in the expanded condition thereof having at least two layers which overlap and bear against one another over a substantial portion of a circumference of the inner layer, said expanded roll adapted for securely contacting said body passage walls by virtue of said radial expansion tendency; and
a sensing device secured to the inner surface of said tubular stent member and oriented for monitoring of a desired condition within the body.
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Abstract
A stent/sensing device is provided by attachment of an in vivo sensor such as a blood glucose sensor to the inner surface of the multiple layer roll. Electrical leads extending from the sensor device pass through an elongated groove provided in the inner supporting spool for the stent.
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Citations
8 Claims
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1. A stent and sensing device for placement in a body passage, comprising:
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a tubular stent member presenting an inner surface and an outer surface adapted to contact the walls of a body passage, said stent having a relatively contracted condition permitting placement of the stent member within said passage, and an expanded condition whereby said stent is adapted to contact said body passage walls, said stent member being a flexible sheet wound into a multiple layer roll having said contracted and expanded conditions, said sheet having a spring force so that said sheet is urged toward the expanded condition thereof, said roll in the expanded condition thereof having at least two layers which overlap and bear against one another over a substantial portion of a circumference of the inner layer, said expanded roll adapted for securely contacting said body passage walls by virtue of said radial expansion tendency; and a sensing device secured to the inner surface of said tubular stent member and oriented for monitoring of a desired condition within the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification