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US 6,497,709 B1Granted
Metal medical device
AssigneeBoston Scientific Corporation
InventorKevin R. Heath
Life of this patent
Estimating the term…
Abstract
A medical device and method for treatment in which the device has a portion for use within the body that exhibits enhanced properties such as radiopacity for viewing by x-ray fluoroscopy. The portion includes an extended metal outer member having, e.g., a predetermined density and an exposed outer surface and a core, including a metal having, e.g., a density greater than the outer member to enhance radiopacity, substantially enclosed by the outer member.
Claims35
A medical device, comprising:
- a filter for placement within a channel within a body to filter a body fluid flowing through the channel, the filter including a wire-form member which comprises an outer metal member and a core disposed within the outer metal member, the outer metal member comprising a first metal and the core comprising a second metal different than the first metal,
- wherein the second metal has a density greater than the first metal, and the core has a thickness sufficient to enhance the radiopacity of the filter when placed within the body.
A medical device, comprising:
- a vascular filter for placement in a blood vessel to filter clots in blood flowing through the blood vessel within the body, the filter including a wire-form member which comprises an outer metal member and a core disposed within the outer metal member, the outer metal member comprising a first metal having a density less than about 9.9 grams per cubic centimeter, and the core comprising a second metal having a density greater than 9.9 grams per cubic centimeter,
- wherein the core has a thickness suffiecient to enhance the radiopacity of the filter when places within the body.
A medical device, comprising:
- a filter for filtering a body fluid flowing through a channel in the body, the filter including a wire-form member which comprises a core and a metal sheath intimately surrounding the core, the core having a first thickness and comprising a first metal and the metal sheath having a second thickness different than the first thickness and comprising a second metal different than the first metal, the second metal having a lower density and a greater elasticity than the first metal,
- wherein the core has a thickness sufficient to enhance the radiopacity of the filter when placed within the body.
A medical device, comprising:
- a filter for placement within a channel within a body to filter a body fluid flowing through the channel, the filter comprising an outer metal member and a core disposed within the outer metal member, the outer metal member comprising a first metal and the core comprising a second metal different than the first metal,
- wherein the second metal has a density greater than the first metal, and the core has a thickness sufficient to enhance the radiopacity of the filter when placed within the body.
Dependencies are inferred from the claim text.