Intra-subject position detection system and intra-subject position detection method
AssigneesOlympus Corporation, Olympus Medical Systems Corp.
InventorsKazuaki TAMURA, Takeshi MORI, Tetsuo MINAI, Akio UCHIYAMA
Life of this patent
Estimating the term…
Abstract
From among plural receiver electrodes for receiving a transmission signal transmitted from transmitter electrodes of an intra-subject introduction device, receiver electrodes for receiving an image reception signal are selected by a receiver electrode selection circuit. Further, receiver electrodes for receiving a signal for position detection are selected by a receiver electrode selection circuit, from among the other ones of the plural receiver electrodes than the receiver electrodes selected by the receiver electrode selection circuit.
Claims13
An intra-subject position detection system comprising:
- an intra-subject introduction device that is introduced into a test subject and obtains an intra-subject information;
- and
- a position detection device that is provided outside the test subject and derives a positional information of the intra-subject introduction device inside the test subject, wherein
- the intra-subject introduction device comprises transmitter electrodes that are positioned on an outer circumferential surface of the intra-subject introduction device, to transmit the intra-subject information to outside of the test subject, and
- the position detection device comprises
- a plurality of receiver electrodes provided on an outer surface of the test subject,
- a receiver electrode selection circuit that selects receiver electrodes for receiving the intra-subject information, from among the plurality of receiver electrodes,
- a position detection electrode selection circuit that selects receiver electrodes for position detection of the intra-subject introduction device, from among the other receiver electrodes of the plurality of receiver electrodes than the receiver electrodes selected by the receiver electrode selection circuit, and
- a positional information derivation circuit that derives the positional information of the intra-subject introduction device, based on an electric signal from the receiver electrodes selected by the position detection electrode selection circuit.
An intra-subject position detection method for deriving a positional information of an intra-subject introduction device that is introduced into a test subject and obtains intra-subject information, the method comprising:
- selecting receiver electrodes for receiving the intra-subject information, from among a plurality of receiver electrodes provided on an outer surface of the test subject;
- selecting, from among the other receiver electrodes of the plurality of receiver electrodes than the selected receiver electrodes, receiver electrodes for a position detection of the intra-subject introduction device;
- and
- deriving the positional information of the intra-subject introduction device, based on an electric signal transmitted from transmitter electrodes and received by the receiver electrodes for the position detection, the transmitter electrodes being provided on an outer circumferential surface of the intra-subject introduction device, to transmit the intra-subject information to outside of the test subject.
Dependencies are inferred from the claim text.