Loadable polymeric particles for enhanced imaging in clinical applications and methods of preparing and using the same
First Claim
1. A method of performing a selective embolization, the method comprising:
- a) selecting a targeted tissue within a mammalian patient; and
b) delivering to the targeted tissue one or more first particles, the first particles each comprising a core and a coating;
wherein the first particle core comprises a first acrylic-based hydrogel polymer; and
the first particle coating comprises a poly[bis(trifluoroethoxy)phosphazene] and/or a derivative thereof.
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Accused Products
Abstract
Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Such particles may be provided to a user in specific selected sizes to allow for selective embolization of certain sized blood vessels or localized treatment with an active component agent in specific clinical uses. Microspheres of the present invention may further be provided with physical and/or chemical enhancements within the particles'"'"' cores to enhance visualization of the embolized tissue using a variety of medical imaging modalities, including conventional radiography, fluoroscopy, tomography, computerized tomography, ultrasound, scintillation, magnetic resonance, or other imaging technologies.
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Citations
17 Claims
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1. A method of performing a selective embolization, the method comprising:
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a) selecting a targeted tissue within a mammalian patient; and b) delivering to the targeted tissue one or more first particles, the first particles each comprising a core and a coating; wherein the first particle core comprises a first acrylic-based hydrogel polymer; and the first particle coating comprises a poly[bis(trifluoroethoxy)phosphazene] and/or a derivative thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification