JP2001125010A - Adapter for endoscope light source device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the decrease in a light quantity when endoscopes having the shape of light guide connectors matching the shape of a light source output connector of a light source device are combined and to deal with many kinds of the light guide connectors while minimizing laboriousness. SOLUTION: The adapter for the endoscope light source device for connecting the light guide connector 8 disposed in the endoscope for connection to the endoscope light source device to the light source connectors of different types has plural light guide fitting holes 31, 32 and 33 for connection varying in the types in such a manner that a plurality of kinds of the light guide connectors are individually adaptable thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an adapter for an endoscope light source device used when connecting an endoscope to an endoscope light source device.

[0002]

2. Description of the Related Art Light guide connectors of various endoscopes have different types depending on products. An endoscope light source device having an output connector that cannot be adapted to a light guide connector of an endoscope to be used cannot be used directly. In such a case, generally, an adapter corresponding to the endoscope light source device is used to connect to an output connector of an endoscope light source device of a different type.

However, as the types of adapters increase, the management of the adapters and the like become more difficult and the usability deteriorates.

Therefore, in US Pat. No. 4,025,776, a rotary light source output connector of an endoscope light source device having a plurality of connection holes is adopted in order to support various types of light guide connectors. ing.

[0005]

As described above, in the method of connecting an adapter conforming to the shape of the light source output connector of the light source device to the light guide connector and then connecting the light guide device to the light source device, the types of endoscopes increase. Accordingly, when the types of light guide connectors to be supported increase, the number of adapters to be owned increases, so that the management becomes troublesome and the usability deteriorates.

In order to cope with various types of light guide connectors as in the latter case, when the structure of the rotary light source output connector as described above is adopted, the light between the light source output connector and the light source in the light source device is changed. It is difficult to ensure the accuracy of the shaft, and as a result, the amount of light emitted from the distal end of the endoscope is reduced.

In view of the above circumstances, the present invention prevents a decrease in the amount of light when combining an endoscope having a light guide connector whose shape matches the light source output connector of the light source device, and reduces the complexity of various types of light guide connectors. It is an object of the present invention to provide a connection method of a light guide connector which can cope with a minimum.

[0008]

According to the first aspect of the present invention, there is provided an endoscope for connecting a connector provided in an endoscope for connection with an endoscope light source device to a light source output port of a different type. An adapter for an endoscope light source device, wherein the adapter for an endoscope light source device has a plurality of connection ports of different types so that a plurality of types of connectors are individually adapted.

According to a second aspect of the present invention, there is provided an adapter for an endoscope light source device for connecting a connector provided on an endoscope for connection with the endoscope light source device to a light source output port having a different shape. A movable member having a plurality of connection ports of different types so that a plurality of types of connectors are individually fitted, and a connection port that matches a light source output port of the endoscope light source device by moving the moving member. An endoscope light source device adapter comprising a positioning mechanism for adjusting to the light source output port.

According to a third aspect of the present invention, there is provided an adapter for an endoscope light source device for connecting a connector provided on an endoscope for connection with an endoscope light source device to light source output ports having different shapes. An adapter body, a movable member attached to the adapter body, and having a plurality of connection ports of different types so that a plurality of types of connectors can be individually fitted; and A positioning mechanism that aligns a connection port that matches the light source output port of the mirror light source device with the light source output port, and a position regulating member that engages with the housing of the endoscope light source device to regulate the movement of the adapter body. It is an adapter for an endoscope light source device provided.

When the light guide connector of the endoscope whose shape matches the light source output port of the light source device is combined with the light guide connector of the endoscope, the light quantity is reduced by directly connecting the light guide connector to the light source output port of the light source device. It is possible to prevent it. Since there are multiple connection ports of different types so that multiple types of connectors can be individually adapted to the endoscope light source device adapter itself, it is possible to respond to a wide variety of light guide connectors while minimizing trouble. .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) An adapter for an endoscope light source device according to a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view schematically showing an endoscope system. This endoscope system is for medical use for observing and treating a body cavity, for example, and includes an endoscope 1 and a light source device 2 that supplies illumination light to the endoscope 1. The endoscope 1 has an insertion section 5, an operation section 6, and a universal cord 7, and a light guide (not shown) serving as an illumination optical system is inserted through the insertion section 5, the operation section 6, and the universal cord 7. A light guide connector 8 is provided at a leading end of the universal cord 7 extending from the operation unit 6.

The housing (main body case) 10 of the light source device 2
An output connector 11, which is a light source light emission port (light source output port) for detachably connecting the light guide connector 8, a power switch 12, and other operating means, a display unit (not shown), etc. A panel 13 to be arranged is provided.

FIG. 2 shows a conventional adapter type, which is a light guide connector 8a-8 for various products.
d and the plurality of types of light guide connectors 8a to 8d.
8d adapters 13a-
13d, and related items are shown side by side. Conventionally, individual types of adapters 13a to 13d corresponding to the light guide connectors 8a to 8d are prepared.

FIG. 3 is a front view of the endoscope light source device adapter 15 according to the first embodiment. FIG. 4 is a side view of the endoscope light source device adapter 15 according to the first embodiment. FIG. FIG. 5 is a front view of a state where the adapter 15 is actually combined with the housing 10 of the light source device 2.

The endoscope light source device adapter 15 can selectively connect a plurality of types of light guide connectors 8 as shown in FIG. Main body 2 of adapter 15
Reference numeral 1 denotes a cylindrical member, and a bearing 23 rotatably supporting a turret 22 as a moving member. The turret 22 is formed of a columnar member having the same diameter as the main body 21, and each columnar member is coaxially arranged. The turret 22 is supported on the main body 21 by a shaft pin 24.

A light source connector 26 which is inserted into and connected to the output connector 11 of the light source device 2 is fixedly provided on the back surface of the main body 21 of the adapter 15. The light source connector 26 has a built-in rod 27 that receives and emits light emitted from the light source device 2. An anchoring ring 28 is fitted around the middle of the rod-shaped light source connector 26. When the light source connector 26 is inserted into the output connector 11 of the light source device 2, the attachment ring 28 is engaged by a frictional force between the two, or is engaged with an engagement receiving portion (not shown) provided on the output connector 11 of the light source device 2. Wear the light source connector 26
Hold. The light source connector 26 is eccentric from the center axis of the main body 21 and is disposed at a position parallel to the center axis.

The turret 22 has a plurality of types of light guide fitting holes (connection ports) 31 arranged on a circle passing through the center of the light source connector 26 around the center axis of the main body 21.
32 and 33 are provided. Each light guide fitting hole 3
1, 32 and 33 are adapters 1 of the type shown in FIG.
The connection ports 3a to 13d are configured. Further, by rotating the turret 22, the light guide fitting holes 31, 32, and 33 can be positioned in accordance with the center of the light source connector. Light guide fitting hole 3
When any one of 1, 32, and 33 to be used is aligned with the center position of the light source connector 26, the operation is stopped. For example, positioning and fixing means for holding the turret 22 at the selected position, such as screwing means and click-stop means, may be provided.

Here, each light guide fitting hole 31, 3
Reference numerals 2 and 33 denote individual types of light guide connectors 8 which can be connected to any one of the light guide connectors 8.
A light guide connector 8 of a selected specific endoscope can be connected to each of the light guide fitting holes 31, 32, 33.

The main body 21 of the adapter 15 is provided with a rotation stopping means for preventing its own rotation. The rotation stopping means is locked to the housing 10 of the light source device 2 to prevent the rotation of the adapter 15.

That is, a pair of band-shaped locking pieces 35 and 36 are attached to the back of the main body 21 so as to be slidable in the vertical direction. As shown in FIG. 4, the base end portions of the locking pieces 35 and 36 are arranged in an overlapping state.

One engaging piece 35 extends upward, and its extended end is bent backward to form a bent portion 37 that is joined to the upper surface of the housing 10 of the light source device 2. The other retaining piece 36
Extends downward, and the extending end is bent rearward to form the light source device 2.
A bent portion 38 to be joined to the lower surface of the housing 10 is formed. The locking pieces 35 and 36 are slidable in the vertical direction, but are attached so as not to rotate with respect to the main body 21 of the adapter 15. That is, the locking pieces 35 and 36 constitute a position regulating member that regulates the movement of the main body 21 of the adapter 15.

The locking pieces 35, 36 are slidable in the vertical direction, and their lengths are adjustable, and can be held at positions adjusted by, for example, mechanical frictional force. , 36 may be fixed at the adjusted position.

Next, the operation when the endoscope light source device adapter 15 is used will be described. First, the light source connector 26 of the adapter 15 is inserted into the output connector 11 of the light source device 2. Thereafter, the locking pieces 35 and 36 of the rotation stopping means are slid in the up and down direction to adjust the length thereof so as to match the upper and lower surfaces of the housing 10 of the light source device 2. The bent portion 37 is joined to the upper surface of the housing 10 of the light source device 2, and the bent portion 38 of the locking piece 36 extending downward is joined to the lower surface of the housing 10 of the light source device 2. Accordingly, the position can be restricted such that the rotation of the adapter 15 when the turret 22 is rotated is prevented.

Thereafter, the light guide fitting holes 31, 32,
33, one of the types in which the light guide connector 8 of the endoscope 1 to be used can be inserted is selected, and one of the light guide fitting holes 31, 32, 33 is aligned with the output connector 11 in a straight line. The positioning operation of rotating the turret 22 is performed. One of the fitting holes 31, 32, 33 selected by this positioning operation and the output connector 11 are optically connected via the rod bar 27, and the inside of one of the selected fitting holes 31, 32, 33 is When the ride guide connector 8 of the endoscope 1 is inserted and inserted, the light emitted from the light source device 2 is transmitted through the light guide connector 8 to the endoscope 1.
And is emitted from the tip.

(Second Embodiment) An adapter for an endoscope light source device according to a second embodiment of the present invention will be described with reference to FIGS.

The adapter 15 for the endoscope light source device in the present embodiment is a projection on the housing 10 of the light source device 2 to which the adapter 15 is mounted, for example, a jetty 41 surrounding the power switch 12 shown in FIG.
Is provided with a planar or linear stopper 42 that abuts against
This position restricting member constitutes means having a rotation stopping function. The stopper 42 is formed by one end of a plate member 44 joined to the back of the main body 21 and stopped by screws 43 as shown in FIG. Other configurations are the same as those of the above-described first embodiment.

Next, when the adapter 15 for the endoscope light source device is used, when the light source connector 26 of the adapter 15 is inserted into the output connector 11 of the light source device 2, the ridge 41 surrounding the power switch 12 shown in FIG. The stopper 42 is attached while being brought into contact with the stopper 42.

Then, the jetty 41 and the stopper 42 are engaged with each other, so that the rotation of the adapter 15 when the turret 22 is rotated can be prevented. After that, the adapter 15 can be used as in the first embodiment.

The adapter 15 having the turret 22
The rotation preventing means for preventing the rotation of the light source device may have another structure such as abutting or locking according to the shape of the light source device.

(Third Embodiment) An adapter for an endoscope light source device according to a third embodiment of the present invention will be described with reference to FIG.

This embodiment is an endoscope light source device adapter 1
5 is a stage 51 which is slidable in the lateral direction as a moving member provided on the main body 21 of the main body 5. Light guide fitting holes 31, 32, 33 of different types are provided on the stage 51.
Are arranged in a line on a straight line in the sliding direction. When the stage 51 is slid, the light source connector 26 is inserted into the output connector 11 of the light source device 2 at a position corresponding to a straight line where the light guide fitting holes 31, 32, 33 are located. It is provided fixedly. Other configurations are the same as those of the above-described first embodiment.

According to this method, the fitting holes 31, 32, 3
At the time of selection 3, since no rotational force is generated in the adapter 15, there is no need to provide a rotation stopping means.

The present invention is not limited to the above embodiment. According to the description of each of the above embodiments, at least the following items and items in any combination thereof can be obtained.

[0036]

As described above, according to the present invention, when a light guide connector of an endoscope whose shape matches that of a light source output port of a light source device is combined with a light guide connector of an endoscope, light is applied to the light source output port of the light source device. Since the guide connector can be connected as it is, it is possible to avoid a decrease in the amount of light due to misalignment. Also, when an endoscope having a light guide connector having a shape different from that of the light source output port of the light source device is connected to the light source device, possessing one adapter enables the use of a plurality of types of endoscopes. It is not necessary to manage the adapter, and the trouble is reduced. Furthermore, except for the operation of selecting the connection port for the connection method,
The connection can be made by the same operation as before, so that the user can use the terminal without discomfort.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing an endoscope system according to a first embodiment of the present invention.

FIG. 2 is an explanatory view showing a form of a light guide connector in various endoscope products and adapters of individual types corresponding to each of the plurality of types of light guide connectors, and related ones arranged side by side.

FIG. 3 is a front view of the endoscope light source device adapter according to the first embodiment of the present invention.

FIG. 4 is a side view of the endoscope light source device adapter according to the first embodiment of the present invention.

FIG. 5 is a front view of a state in which the endoscope light source device adapter is actually combined with a housing of the light source device.

FIG. 6 is a front view of an adapter for an endoscope light source device according to a second embodiment of the present invention.

FIG. 7 is a side view of an endoscope light source device adapter according to a second embodiment of the present invention.

FIG. 8 is a rear view of an endoscope light source device adapter according to a second embodiment of the present invention.

FIG. 9 is a front view of a state in which the endoscope light source device adapter is actually combined with a housing of the light source device.

FIG. 10 is a front view of an adapter for an endoscope light source device according to a third embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 1 endoscope, 2 light source device, 8 light guide connector, 10 housing of light source device, 15 adapter for endoscope light source device, 21 body of adapter, 22 turret of adapter, 26 light source Connectors, 31, 32, 33: Light guide fitting holes (connection ports).

Claims (3)

[Claims] 1. An endoscope light source device adapter for connecting a connector provided on an endoscope for connection with an endoscope light source device to a light source output port of a different type, wherein a plurality of types of connectors are individually provided. An adapter for an endoscope light source device, comprising a plurality of connection ports having different types so as to conform to the above. 2. An endoscope light source device adapter for connecting a connector provided on an endoscope for connection with an endoscope light source device to a light source output port having a different shape, wherein a plurality of types of connectors are individually provided. A movable member having a plurality of connection ports of different types so as to conform to the above, and a connection port matching the light source output port of the endoscope light source device is adjusted to the light source output port by moving the moving member. An endoscope light source device adapter comprising a positioning mechanism. 3. An endoscope light source device adapter for connecting a connector provided on an endoscope for connection with an endoscope light source device to a light source output port having a different shape. A movable member attached to the main body and having a plurality of connection ports of different types so that a plurality of types of connectors are individually fitted, and a light source output of the endoscope light source device by moving the moving member. A positioning mechanism that matches a connection port that matches the port with the light source output port,
An endoscope light source device adapter, comprising: a position restricting member that engages with a housing of the endoscope light source device for restricting movement of the adapter body.