Endoscopy tissue stain
AssigneeChek-Med Systems, Inc.
InventorsFrank C. Carter, Frank W. Jackson, Robert G. Whalen
Life of this patent
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Abstract
An endoscopic stain is provided that includes a carbon pigment and a suspending/viscosity-increasing agent in a pharmaceutically acceptable delivery vehicle, wherein the carbon pigment has a total level of polycyclic aromatic hydrocarbons (PAH) of not greater than 0.5 ppm. Methods of staining an internal site utilizing the stain of the invention and kits that include the stain of the invention are also provided.
Claims22
An endoscopic tissue staining composition comprising a carbon pigment and a suspending/viscosity-increasing agent in a pharmaceutically acceptable delivery vehicle, wherein said carbon pigment has a level of total polycyclic aromatic hydrocarbons of not greater than 0.5 ppm.
An endoscopic tissue staining composition comprising
- a carbon pigment,
- a suspending/viscosity-increasing agent,
- a surfactant, and
- an anti-foaming agent;
- in a pharmaceutically acceptable delivery vehicle, wherein said carbon pigment has a level of total polycyclic aromatic hydrocarbons of not greater than 0.5 ppm.
Dependencies are inferred from the claim text.