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Power supply apparatus

A power supply device and power supply technology, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve the problem that the coil is not an optimal method, and achieve the effect of efficiently providing power

Inactive Publication Date: 2007-03-28
OLYMPUS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the above-mentioned power transmission system, an antenna with only a fixed directivity provided with a plane on the surface of the clothes worn by the subject, that is, the subject, can only simply supply power, so it cannot be used during movement in the body cavity. Efficient power supply for capsule endoscopes that change positions frequently
In addition, it is also conceivable to install two or more coils in different directions in the capsule endoscope to facilitate the supply of power, etc., but it is necessary to install a dedicated space for multiple coils. In the case of limited equipment installation space, setting multiple coils is not the best way

Method used

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Experimental program
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Embodiment 1

[0030] FIG. 1 is a system conceptual diagram showing the concept of the in-subject information acquisition system according to the present invention. In FIG. 1, the in-subject information acquisition system has: a swallowable capsule endoscope 2 as an in-subject information acquisition device introduced into a body cavity of a subject 1; and a communication device as an extracorporeal device 3. It is arranged outside the subject 1 and performs wireless communication of various information with the capsule endoscope 2. In addition, the in-subject information acquisition system includes: a display device 4 that displays images based on data received by the communication device 3; and a portable recording medium 5 that performs data input and output between the communication device 3 and the display device 4.

[0031] Fig. 2 is a block diagram showing the internal structure of the capsule endoscope shown in Fig. 1. In addition, in the following drawings, for convenience of descriptio...

Embodiment 2

[0050] Fig. 7 is a plan view showing Example 2 of the vest shown in Fig. 1. In FIG. 7, the difference from the vest according to the first embodiment of FIG. 5 is that it has a coil 70 wound up and down on the inner peripheral surface of the vest 31. The coil 70 is formed of a single conductive wire wound into a spiral loop at a predetermined pitch, and intersects the coils 61 and 62 on the front and rear surfaces of the vest 31.

[0051] Drive circuits 71 and 72 are connected to the coil 70. These drive circuits 71 and 72 are connected to the power supply unit 38 of the external device 32 described above, and the power supply unit 38 supplies power. With this power supply, as with the coils 61 and 62, an AC magnetic field of a predetermined strength is generated in the coil 70.

[0052] Fig. 8 is a diagram showing AC magnetic fields generated by the respective coils 61, 62, and 70 shown in Fig. 7. In FIG. 8, the magnetic fluxes 61a and 62a of the coils 61 and 62 are the same as i...

Embodiment 3

[0056] Fig. 9 is a plan view showing Example 3 of the vest shown in Fig. 1. In FIG. 9, the coil 67 is formed by a single conductive wire. The formed coil 67 is arranged to cross each other on the front surface and the rear surface of the inner peripheral surface of the vest 31, and is continuous at a predetermined pitch in the vertical direction on the side surfaces. Ground winding.

[0057]Drive circuits 68 and 69 are connected to the coil 67, and these drive circuits 68 and 69 are connected to the power supply unit 38 of the external device 32 described above, and the power supply unit 38 supplies power. With this power supply, as in the first and second embodiments, the coil 67 generates an alternating magnetic field of predetermined strength.

[0058] That is, the central axis corresponding to each turn is continuously formed in the coil 67, and the magnetic flux of the coil 67 is formed to be radial around these central axes, cross each other and extend in multiple directions...

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Abstract

Two coils (61, 62) for electric power supply are arranged on a vest (31) covering a subject, where the coils are wound diagonally and symmetrically on the surface around the vest (31). Electric power is supplied to the coils (61, 62) through driver circuits (63-66) from a power supply unit in an external apparatus to pass electric current through the coils (61, 62). This causes magnetic fluxes in different directions to be produced so that they penetrate through the coils (61, 62), generating a non-directional magnetic field. As a result, electric power is efficiently supplied to a device to be introduced into the subject, such as a capsule-type endoscope.

Description

Technical field [0001] The present invention relates to a power supply device that supplies power from outside the subject to an intra-subject introduction device introduced into the subject, such as a swallowable capsule endoscope. Background technique [0002] In recent years, in the field of endoscopes, capsule endoscopes equipped with imaging functions and wireless functions have appeared. This capsule endoscope is configured to be swallowed by a subject as a subject for observation (inspection), and during the observation period from the subject's biological body (human body) to the natural discharge Inside the internal organs such as the stomach and small intestine, it moves along with the peristaltic movement of the internal organs and uses the imaging function to sequentially take pictures. [0003] In addition, while these internal organs are moving for observation, the image data captured in the living body by the capsule endoscope is sequentially transmitted to an exte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00A61B5/07H02J7/00H02J5/00
CPCA61B5/073A61B1/00016A61B1/00029A61B1/041A61B2560/0219A61B2560/0214H02J5/005H02J50/402H02J50/12H02J2310/23
Inventor 清水初男本多武道药袋哲夫中土一孝
Owner OLYMPUS CORP
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