05-05-2016 дата публикации
Номер: US20160120510A1
Принадлежит:
SenoRx, Inc.
A mass includes particles that exhibit an in vivo lifetime and that include a bioresorbable material and bubble cavities disposed in the particles, wherein the bubble cavities have length, width, and height dimensions at least one of which is less than or equal to about 2000 microns. The mass exhibits enhanced detectability by ultrasound energy during the lifetime; the lifetime begins upon exposure to in vivo fluids and ends between about 2 and about 20 weeks afterward; and a zero or non-zero fluid-to-solid ratio. 175-. (canceled)77. The mass of wherein the lifetime ends between about 6 and about 12 weeks afterward.78. The mass of wherein all of the length claim 77 , width claim 77 , and height dimensions are less than or equal to about 2000 microns.79. The mass of wherein all of the length claim 78 , width claim 78 , and height dimensions are between about 10 and about 500 microns.80. The mass of wherein all of the length claim 79 , width claim 79 , and height dimensions are between about 20 and about 200 microns.81. The mass of having a volume between about 0.2 and about 1.2 ml.82. The mass of having a volume of about 0.5 ml.83. The mass of wherein the bioresorbable material comprises a bioresorbable polymeric material.84. The mass of wherein the bioresorbable polymeric material comprises polymers claim 83 , copolymers claim 83 , polymer alloys claim 83 , polymer mixtures claim 83 , or other combinations of poly(esters) claim 83 , poly(hydroxy acids) claim 83 , poly(lactones) claim 83 , poly(amides) claim 83 , poly(ester-amides) claim 83 , poly(amino acids) claim 83 , poly(anhydrides) claim 83 , poly(orthoesters) claim 83 , poly(carbonates) claim 83 , poly(phosphazines) claim 83 , poly(thioesters) claim 83 , poly(urethanes) claim 83 , poly(ester urethanes) claim 83 , polysaccharides claim 83 , polylactic acids claim 83 , polyglycolic acids claim 83 , polycaproic acids claim 83 , polybutyric acids claim 83 , or polyvaleric acids.85. The mass of wherein the ...
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