Surgery – Controlled release therapeutic device or system
Patent
1990-12-11
1993-06-08
Hindenburg, Max
Surgery
Controlled release therapeutic device or system
604131, A61K 922
Patent
active
052174492
ABSTRACT:
A medical capsule having an outer cylinder and a piston movable in the outer cylinder, the piston being activated by an externally given signal so as to discharge a medicine to the outside of the capsule or to suck a humor for a sampling purpose, as well as an apparatus for activating this medical capsule. The capsule has a remote-controllable means including a normally-opened lead switch which connects a power supply to an activating means in response to an externally given magnetic signal thereby initiating activation of the medical capsule, whereby a simple medical capsule which is operative with minimized electrical power consumption without affecting the living body can be obtained. The activating apparatus has a pair of magnetic field generating units arranged side-by-side so as to generate magnetic lines of force in various directions and to form magnetic fields covering a large area, thus ensuring correct activation of the medical capsule inside the living body.
REFERENCES:
patent: 3659600 (1972-05-01), Merrill
patent: 4239040 (1980-12-01), Hosoya et al.
patent: 4425117 (1984-01-01), Hugemann et al.
patent: 4507115 (1985-03-01), Kambara et al.
Ito Hiroshi
Tanaka Mamoru
Yuda Shunichi
Hindenburg Max
Miyarisan Kabushiki Kaisha
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