Radiopaque material for enhanced x-ray attenuation
AssigneeBoston Scientific Scimed, Inc.
InventorsSCOTT R. SCHEWE, BENJAMIN P. GUNDALE
Life of this patent
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Abstract
A medical device that may be implanted in a patient's body is disclosed. An illustrative medical device has an elongated structure that includes a material loaded with a radiopaque material. The radiopaque material includes radiopaque particles having multiple sets of radiopaque particles. The multiple sets of radiopaque particles may include a first set of radiopaque particles having particles with particle sizes in a first particle size range and a second set of radiopaque particles having particles with particle sizes in a second particle size range. The second set of radiopaque particles may have particles configured to fit within interstitial spaces between particles of the first set of radiopaque particles.
Claims20
A medical device, comprising:
- an elongated structure;
- wherein the elongated structure includes a radiopaque material;
- and
- wherein the radiopaque material comprises a first set of radiopaque particles having a first particle size mode and a second set of radiopaque particles having a second particle size mode that is less than the first particle size mode.
A method of manufacturing a medical device, the method comprising:
- mixing a first set of radiopaque particles having a first particle size distribution with a second set of radiopaque particles having a second particle size distribution do define a radiopaque material;
- providing a medical device;
- loading a portion of the medical device with the radiopaque material;
- and
- packing the first set of radiopaque particles with the second set of radiopaque particles by applying ultrasonic energy to the first set of radiopaque particles and the second set of radiopaque particles.
A medical device, comprising:
- a structure including a radiopaque material;
- wherein the radiopaque material comprises a first set of radiopaque particles having particle sizes within a first range of particle sizes and a second set of radiopaque particles having particle sizes within a second range of particle sizes;
- wherein the first range of particle sizes is 6 microns to 12 microns;
- and
- wherein the second range of particle sizes is 0.7 microns to 4 microns.
Dependencies are inferred from the claim text.