JP2008259666A - Light source device of portable endoscope - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery-type light source device of a portable endoscope, not obstructing the operation when mounted on a portable endoscope body. <P>SOLUTION: The portable endoscope includes the light source device 10 having a battery 11, an illuminating part 13 emitting light when the power is supplied by the battery 11, and a circuit board 15 for driving the illuminating part 13. The light source device 10 is removable from the portable endoscope body, and configured to guide the light from the illuminating part 13 and apply the light to an observation part, and guide the reflected light of the light applied to the observation part in the state of being observed through an ocular lens. In the light source device 10, the illuminating part 13, the battery 11 and the circuit board 15 are disposed in order along the optical axis direction of the illuminating part 13 from the portable endoscope body contacting side first, and the battery 11 and the circuit board 15 are disposed side by side in the direction vertical to the optical axis of the illuminating part 13. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a light source device for a portable endoscope.

  Conventionally, a portable type comprising a battery-type light source device that emits light by power supply from a battery, and a portable endoscope body that irradiates the observation site with light from the battery-type light source device and can observe reflected light from the observation site Endoscopes have been proposed.

Patent Document 1 discloses a portable endoscope that has a cylindrical shape and includes a battery-type light source device that can be attached to and detached from the portable endoscope body.
JP 2003-334167 A

  However, in the device of Patent Document 1, the battery case portion of the battery type light source device is arranged perpendicular to a member having a lighting device such as a lamp, and the shape of the battery type light source device is L-shaped (or T-shaped). And there is a risk that it may interfere with operation when attached to the portable endoscope body.

  Accordingly, an object of the present invention is to provide a battery-type light source device for a portable endoscope that does not interfere with operation when attached to a portable endoscope body.

  A portable endoscope according to the present invention includes a light source device including a battery, an illumination unit that emits light by power supply from the battery, and a circuit board that drives the illumination unit, and the light source device is detachable from the illumination unit. A portable endoscope body that guides the reflected light of the light irradiated to the observation part and guides the reflected light of the light irradiated to the observation part through the eyepiece lens, The lighting unit, the battery, and the circuit board are arranged side by side in the optical axis direction of the lighting unit and from the side in contact with the portable endoscope body, and the battery and the circuit board are arranged in a direction perpendicular to the optical axis of the lighting unit. Arranged side by side.

  Preferably, the light source device has an on / off switch that performs on / off switching of illumination by the illumination unit on a side opposite to the illumination unit of the battery, and a terminal on the battery on / off switch side is electrically connected to one terminal of the on / off switch. The other terminal of the on / off switch is electrically connected to the circuit board.

  Preferably, the light source device has a warning display unit that displays a warning that the battery has run out when the remaining amount of the battery is low, and the LED of the warning display unit is on the circuit board and the optical axis of the illumination unit. It is arranged on the side opposite to the side where the battery is present when viewed from the direction.

  A light source device for a portable endoscope according to the present invention includes a battery, an illumination unit that emits light by power supply from the battery, and a circuit board that drives the illumination unit, and guides light from the illumination unit, It is detachable from the portable endoscope main body side that irradiates the observation site and guides the reflected light of the light irradiated to the observation site through an eyepiece in a state where it can be observed, and the illumination unit, the battery, and the circuit board are The battery and the circuit board are arranged side by side in the direction perpendicular to the optical axis of the illuminating unit.

  As described above, according to the present invention, it is possible to provide a battery-type light source device for a portable endoscope that does not interfere with operation when attached to the portable endoscope body.

  Hereinafter, the present embodiment will be described with reference to the drawings. The portable endoscope 1 according to the present embodiment includes a light source device 10, a gripping unit 20, an insertion unit 30, a bending unit 40, and an eyepiece unit 50 as a portable endoscope body (see FIG. 1). ).

  The light source device 10 is configured to observe light emitted from the illuminating unit by supplying power using a battery through a light guide of the gripping unit 20, the insertion unit 30, and the bending unit 40 (observation). Supply).

  The grip part 20 is a part where the practitioner performs various operations while being held by hand. The insertion part 30 is a flexible tube inserted into the patient's body. The bending portion 40 has a shape that can be bent by operating the grip portion 20 so that the tip can face the observation site. The insertion unit 30 and the bending unit 40 include a light guide that guides light supplied from the light source device 10 to the observation site and an image guide that guides reflected light from the observation site (not shown).

  The eyepiece unit 50 includes an eyepiece lens, and an object image obtained by guiding the reflected light of the light emitted from the bending unit 40 to the observation site can be observed through the eyepiece lens.

  The light source device 10 is detachable from the grip portion 20. The light source device 10 includes a battery 11, an on / off switch 12, an illumination unit 13 such as an LED that emits light when the battery 11 is supplied with power, a condenser lens 14 that collects light emitted from the illumination unit 13, an illumination unit 13, and a warning display unit. And a circuit board 15 that drives the battery 16 and a warning display unit (LED) 16 that displays a warning that the battery has run out when the remaining battery level is low.

  The light source device 10 is formed in a shape in which two truncated cone shapes are connected, and the condenser lens 14, the illumination unit 13, the battery 11, the circuit board 15, and the on / off switch 12 are arranged in the optical axis direction of the illumination unit 13 and a gripping unit. They are arranged side by side in order from the side in contact with 20. The battery 11 and the circuit board 15 are arranged side by side in a direction perpendicular to the optical axis of the illumination unit 13 (and the direction in which the illumination unit 13 and the condenser lens 14 are arranged). The LED of the warning display unit 16 is arranged on the circuit board 15 on the side opposite to the battery 11.

  A terminal (anode) on the on / off switch 12 side of the battery 11 is electrically connected to one terminal of the on / off switch 12. The other terminal of the on / off switch 12 is electrically connected to the circuit board 15. The circuit board 15 is electrically connected to the illumination unit 13 and a terminal (cathode) on the illumination unit 13 side of the battery 11. Note that the arrangement of the anode and cathode of the battery 11 may be reversed.

  As a result, it is possible to route the wiring from the terminal (anode) on the on / off switch 12 side of the battery 11 to the illumination unit 13 on the circuit board 15, and the circuit board is located at another place (for example, in the vicinity of the on / off switch 12). As a result, efficient wiring can be achieved as compared with the configuration in which the first and second wirings are arranged. In particular, since the members are efficiently arranged in the optical axis direction of the illumination unit 13, the length of the light source device 10 in the optical axis direction is shortened, and the outer shape of the light source device 10 is compared with a complicated shape such as an L shape. Can be simplified (substantially cylindrical shape). Since the light source device 10 is configured to extend perpendicularly to the longitudinal direction of the portable endoscope body, a shorter length in the optical axis direction is less likely to obstruct the holding of the portable endoscope.

  Further, it is possible to dispose the LED of the warning display unit 16 on the circuit board 15, and there is an advantage that the circuit configuration does not become complicated even when the warning display unit 16 is not provided.

It is a perspective view which shows the portable endoscope in this embodiment. It is a simplified diagram showing the internal structure of the light source device. It is a block diagram which shows the internal structure of a light source device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable endoscope 10 Light source device 11 Battery 12 On-off switch 13 Illumination part 14 Condensing lens 15 Circuit board 16 Warning display part 20 Grip part 30 Insertion part 40 Bending part 50 Eyepiece part

Claims (4)

A light source device including a battery, an illumination unit that emits light by power supply from the battery, and a circuit board that drives the illumination unit;
The light source device is detachable, guides light from the illumination unit, irradiates the observation site, and guides reflected light of the light irradiated to the observation site through an eyepiece lens. A portable endoscope body,
The light source device arranges the illuminating unit, the battery, and the circuit board in order from the side in contact with the portable endoscope body in the optical axis direction of the illuminating unit, and the battery, the circuit board, Are arranged side by side in a direction perpendicular to the optical axis of the illumination unit. The light source device has an on / off switch that performs on / off switching of illumination by the illumination unit on the side opposite to the illumination unit of the battery,
A terminal on the on / off switch side of the battery is electrically connected to one terminal of the on / off switch,
The portable endoscope according to claim 1, wherein the other terminal of the on / off switch is electrically connected to the circuit board. The light source device has a warning display unit that displays a warning that a battery has run out when the remaining amount of the battery is low,
2. The portable interior according to claim 1, wherein the LED of the warning display unit is disposed on the circuit board and on the side opposite to the side where the battery is present when viewed from the optical axis direction of the illumination unit. Endoscope. Battery,
An illumination unit that emits light by power supply by the battery;
A circuit board for driving the illumination unit,
Detach from the side of the portable endoscope body that guides the light from the illumination unit, irradiates the observation site, and guides the reflected light of the light applied to the observation site in an observable state through the eyepiece. Is possible,
The illumination unit, the battery, and the circuit board are arranged in order from the side in contact with the portable endoscope body in the optical axis direction of the illumination unit, and the battery and the circuit board are arranged in the illumination unit. A light source device for a portable endoscope, which is arranged side by side in a direction perpendicular to an optical axis.

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