JP3742466B2 - Light source device for simplified endoscope - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light source device for a simple endoscope that is detachably connected to an endoscope operation unit in which an incident end of a light guide is disposed.
[0002]
[Prior art]
In a so-called simple endoscope apparatus in which a light source for illumination is provided in an operation unit, an incident end portion of a light guide for transmitting illumination light for illuminating a subject is disposed in the operation unit of the endoscope.
[0003]
An illumination light supply unit (light source device) including a light source lamp for supplying illumination light to the light guide and a battery serving as its power source is detachably provided to the endoscope operation unit. The entire exterior component of the light supply unit is painted in a single color (for example, black).
[0004]
[Problems to be solved by the invention]
The light source lamp used in the light source device of the simple endoscope is a small one, but when it is turned on, it generates heat in a narrow space, so its surrounding parts become quite hot and when touched directly, Risk of burns and removal of the equipment.
[0005]
SUMMARY OF THE INVENTION An object of the present invention is to provide a light source device for a simple endoscope that can alert an operator not to carelessly touch components that become hot when a light source lamp is turned on.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, a light source device for a simplified endoscope according to the present invention has a built-in light source lamp for supplying illumination light to an illumination light guide for an endoscope, and an incident end of the light guide. In a light source device of a simple endoscope that is detachably connected to an endoscope operation unit in which a part is arranged, the surface of a part that becomes hot due to lighting of the light source lamp among the parts exposed on the outer surface It is characterized in that it can be distinguished from other parts.
[0007]
The component that becomes hot when the light source lamp is turned on may be exposed on the outer surface only when the light source device is detached from the endoscope operation unit.
[0008]
The surface color of the component that becomes hot when the light source lamp is turned on may be a different color from the other components. In this case, the surface color of the component that becomes hot when the light source lamp is turned on is red. Also good.
[0009]
Note that the part that becomes hot when the light source lamp is turned on may be a case of a lamp chamber that houses the light source lamp.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which an illumination light supply unit (light source device) 10 is removed from the operation unit 1 of the simple endoscope.
[0011]
The operation portion 1 is provided with an incident end 2a of an illumination light guide fiber bundle 2 for an endoscope, and the illumination light supply unit 10 is in the direction of an arrow with respect to a connection base 3 protruding from the operation portion 1. The light beam emitted from the light source lamp built in the illumination light supply unit 10 is incident on the light guide fiber bundle 2 by being connected and connected to each other.
[0012]
In a state where the illumination light supply unit 10 is connected to the operation unit 1, a female screw formed on the inner surface of the fastening ring 11 on the illumination light supply unit 10 side is screwed with a male screw 4 protruding from the connection base 3 side. By doing so, the connected state is maintained so as not to be disconnected.
[0013]
FIG. 2 shows an illumination light supply unit 10 in which a battery 12 serving as a power source is housed in a battery case 13 formed in a cylindrical shape, and the rear end portion is switched on / off by rotation. A switch 14 is provided.
[0014]
The fastening ring 11 is provided on the front side of the battery case 13 so as to be rotatable about the axis and cannot be moved in the axial direction, and the above-described female screw 15 for screwing to the operation unit 1 side is fastened. The ring 11 is formed on the tip side of the inner surface of the ring 11.
[0015]
The light source lamp 17 made of a miniature bulb is accommodated in a lamp chamber case 18 provided at the tip of the illumination light supply unit 10 so as to be inserted into the connection base 3 of the operation unit 1. Reference numeral 20 denotes a connecting cylinder that connects the battery case 13 and the lamp chamber case 18.
[0016]
In the lamp chamber case 18, a reflecting mirror 21 is disposed so as to surround the light source lamp 17, and a cover glass 22 is disposed at the most distal portion. As a result, a part of the illumination light emitted from the light source lamp 17 in the lit state is directly transmitted through the cover glass 22, and the rest is reflected by the reflecting mirror 21 and then transmitted through the cover glass 22. It enters the light guide fiber bundle 2. Reference numerals 23 and 24 denote sealing O-rings.
[0017]
The lamp chamber case 18 is screwed to the connecting cylinder 20 so that the lamp chamber case 18 can be removed to replace the light source lamp 17, and connects the lamp chamber case 18 as shown in FIG. The light source lamp 17 is exposed by being removed from the tube 20.
[0018]
The lamp chamber case 18, the connecting cylinder 20, and the battery case 13 are all formed of a metal having good thermal conductivity such as aluminum, and the heat of the light source lamp 17 that generates heat by lighting is connected from the lamp chamber case 18. It escapes to the cylinder 20 and the battery case 13.
[0019]
Among them, the lamp chamber case 18 disposed at a position surrounding the light source lamp 17 is close to the light source lamp 17 and is small in size, so that it becomes hot due to heat received from the light source lamp 17 and may be burned when directly touched by hand. There is.
[0020]
However, when the illumination light supply unit 10 is connected to the operation unit 1, the lamp chamber case 18 is inserted into the connection base 3 and is not exposed, so there is no such problem. Such a problem occurs when the illumination light supply unit 10 is removed from the unit 1.
[0021]
Since the battery case 13 is far from the light source lamp 17 and is large in size, the temperature rise is small, and the connecting tube 20 is far from the light source lamp 17 compared to the lamp chamber case 18 and is hardly exposed on the surface. Does not occur.
[0022]
Therefore, the outer surface of the lamp chamber case 18 is colored in a color clearly different from other exposed parts of the illumination light supply unit 10. In FIG. 1 and FIG. 3, the portion is indicated by hatching with broken lines.
[0023]
The outer surface color of the lamp chamber case 18 may be any color as long as it is clearly different from the other exposed parts of the illumination light supply unit 10, but it is a color that can alert the operator not to touch it carelessly. It is desirable that For example, the outer surface color of the lamp chamber case 18 may be red, and the other part of the illumination light supply unit 10 may be black.
[0024]
Further, the components such as the lamp chamber case 18 and the like that become hot when the light source lamp 17 is turned on are not limited to being identified by changing the color, but may be identified by surface finishing or other means such as changing the gloss. Good.
[0025]
【The invention's effect】
According to the present invention, among the parts exposed on the outer surface, the surface of a part that becomes hot when the light source lamp is turned on is made distinguishable from other parts, so that the part that becomes hot when the light source lamp is turned on can be operated. It is possible to call attention so that a person does not touch it accidentally, and to prevent a burn accident or the like.
[Brief description of the drawings]
FIG. 1 is a side view of a state in which an illumination light supply unit according to an embodiment of the present invention is removed from an endoscope operation unit.
FIG. 2 is an enlarged side view showing a part of the illumination light supply unit according to the embodiment of the present invention in cross section.
FIG. 3 is a side view of the illumination light supply unit according to the embodiment of the present invention with the lamp chamber case removed.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Endoscope operation part 2 Light guide fiber bundle 10 Illumination light supply unit (light source device)
17 Light source lamp 18 Lamp chamber case

Claims (3)

A simple type in which a light source lamp for supplying illumination light to an illumination light guide of an endoscope is built in and is detachably connected to an endoscope operation unit in which an incident end of the light guide is disposed In an endoscope light source device,
Of the parts exposed on the outer surface, the surface of the part that becomes hot when the light source lamp is turned on has a different color from the other parts and has a more glossy appearance than the other parts. Endoscope light source device. 2. The light source device for a simple endoscope according to claim 1, wherein the component that becomes hot when the light source lamp is turned on is exposed on an outer surface only when the light source device is detached from the endoscope operation unit. The light source device for a simple endoscope according to claim 1 or 2 , wherein the component that becomes hot when the light source lamp is turned on is a case of a lamp chamber that houses the light source lamp.

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