Patent ID: 8021357

Claim:
A body-insertable apparatus having a storage chamber for storing a medical fluid in a capsule-like casing, the capsule-like casing being configured to be wholly introduced into a subject to discharge the medical fluid to a desired region in the subject, comprising: a medical-fluid discharger forming the storage chamber that has, in a state where it stores the medical fluid therein, a contraction force for reducing the volume of itself to discharge the medical fluid; wherein the medical-fluid discharger is provided in the casing and discharges the medical fluid using the contraction force; a medical-fluid discharger that is provided in the casing and discharges the medical fluid by causing the volume of the storage chamber to be reduced using the contraction force; and an injection needle that projects from the casing by using a physical force generated by the medical-fluid discharger for discharge of the medical fluid, to inject the medical fluid in the storage chamber into the desired region in the subject.