Medical capsule and apparatus for activating the same
US5217449A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1990 |
| Grant date | Jun 8, 1993 |
| Priority date | — |
| Expiry date | Dec 11, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M37/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.