JPS5841525A - Light source apparatus for endoscope - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a light source device for an endoscope that has an improved connection structure for attaching a connector to an endoscope.

Generally, the structure of the socket portion of a light source device for an endoscope has a specific shape adapted to the connector on the endoscope side to be used. However, recently, various endoscopes have been developed, and their connectors have different shapes. For example, in order to chemically disinfect the entire endoscope, the connector part has a special watertight structure and the connector has an increased number of contacts to transmit power and signals to the endoscope and camera side. The shape of the connector must be different for each endoscope.

However, the conventional (c) optical #L device for endoscopes only has one type of socket that fits a specific connector, and cannot be used for endoscopes with different connector shapes. There wasn't. Therefore, a different light source device must be prepared for each type of endoscope, which has become very expensive and uneconomical. especially,
This can be a major obstacle when implementing a system centered on endoscopes.

The present invention has been made in view of the above circumstances, and its purpose is to provide an economical light source device for endoscopes that can be easily installed and used even in endoscopes with different connector shapes. Our goal is to provide the following.

Hereinafter, each embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a first embodiment of the invention. In the figure, 1 is the main body of the light source device 20, 3 is a socket that is detachably attached to the light source device 2, and 4 is an endoscope. In the main body 1 of the light source device 2, a light source rung 5, a rung control circuit 6, an air supply pump, etc. are installed.

A socket mounting portion 8 consisting of a recess into which the socket 3 can be fitted is formed on the front wall of the main body 1. The socket 3 has a main body 9 formed into a substantially box shape, and the main body 9 is tightly fitted into the socket part 8 and positioned. Also, there is dandruff on the earthen wall of socket 3.

A screw hole 10 for fixing the socket is formed, and by screwing a fixing screw 12 that is inserted into the hole 11 for fixing the socket formed in the main body 1 into the screw hole 10 for fixing the socket, the dandruff and the screw hole 10 are fixed. It is designed to be fixed.

Further, a socket member 14 to which a connector 13 of an endoscope 4, which will be described later, is connected is provided on the front wall of the main body 9 of the dandruff 3. This socket member 14 includes an insertion hole 16 through which the connector 13 passes through the ID pipe 15, and a plurality of contact pins 17m and 17b on the connector 13 side.

The 15-th electric contacts 111a, 11b, JJ(+,
18d, l1ja.

A first connecting portion 20 is provided into which the air supply connecting pipe 19 of xttt and connector Is@ is fitted and connected. The insertion hole 16 is formed through the main body 9 of the socket 3, and the guide tube 15 facing the illumination hole 22 formed in the socket mounting portion 8 is inserted into the insertion hole 16.
The tip surface of the light source rung 5 can be set at the light focusing position of the light source rung 5. Each first electrical contact 18*, 18b.

18e, JJd, III, l1jf are contact pins 11m, Irb, Irc, respectively.
176 is made of a conductive member having a fitting hole (not shown) into which the first electric contact 111m,
11b is a second electrical contact 24m, 24b formed on the inner wall of the main body 9 via a transmission means consisting of a lead wire 2S.
It is connected to the. In addition, the remaining first electrical contacts 1B@, 18d are connected to another second electrical contact JJa 121b provided on the adhesive surface of the main body 9 via a transmission means consisting of lead wires 2g, 26. ing. The second electrical contacts 21m and 25b are connected to a device provided outside the light source device 2, such as an electrical connector (electrical contact) 28 of a power source 27. The last remaining first electrical contacts 18, 18f are electrically floating without being connected to anything as a backup. In addition, the second electrical contacts 24m, 2
Reference numeral 4b is a conductive plate-like member, and when the socket 3 is attached to the socket mounting portion 8, the socket mounting portion is connected to electrical contacts 79m and 29b provided on the portion 8. These electrical contacts 29h, 29b are connected to the rung control circuit 6 via lead wires 31. It is connected to a second connecting portion 32 provided on the side wall via a connecting conduit 33. In addition,
This second connecting portion 32 is connected to a connection port 34 provided in the socket mounting portion 8 when the socket 3 is attached to the socket mounting portion 8. This connection port 34 is connected to the air supply//gua through a tube I5 forming a fluid conduit.

On the other hand, the endoscope #14 includes an operating section 41, an insertion section 42, and a light guide cable 43, and the operating section 41 is provided with an eyepiece section 44. The connector 13 is attached to the extending end of the light guide cable 43. An image guide 45 is inserted between the operation section 41 and the insertion section 42, and the image guide 45 optically connects the objective lens (not shown) at the distal end of the insertion section 42 to the eyepiece section 44. There is. Further, a light guide 46 is inserted and arranged across the insertion portion 42, the operation portion 4, and the light guide cable 43,
The distal end of the light guide 46 reaches an illumination window (not shown) at the distal end of the insertion section 42, and the proximal end reaches the guide tube 15 of the connector 13. The connector 13 is the guide tube 16
are provided protrudingly, and first electrical contacts 18m and 18b on the socket 3 side.

18e, contact bin 17h as the electrical contact fitted into IJid X17b, 17c, 17
d is provided protrudingly. And each of these contact bins 77m
, 17b.

Ire and 17rl are leads I! inserted into the endoscope 4, respectively. (not shown)
Corresponding contacts 47m, 47b, 47c,
47d.

Further, a camera 48 can be attached to the eyepiece section 44. This camera 48 has contacts 49h, 49b, 49c that contact the contacts 47m, 47b, 47e 147d when attached to the eyepiece 44.

49d is provided. And contact points 49m and 49b.

A release contact 50 is connected between them, and a contact 49e
, 49d Kil: Motor control circuit 5 is connected. Further, the camera 48 is provided with an operation drive motor 52, and this operation drive motor 62 is controlled and driven by the morph control circuit 61.

In this embodiment, a socket 3 suitable for the type of endoscope 4 is selected, and this socket 3 is attached to the socket attachment part 8 of the light source device 1t2. In other words, the main body 9 of the socket 9 and the socket 3 are fitted into the socket 8,
After positioning, the socket 3 is fixed by inserting and tightening the fixing screw 12 from the fixing hole 11 into the socket fixing screw hole 10.

Therefore, the second electrical contact 24& of socket 3@.

24b is inserted into the electrical contacts 29m and 29b on the light source device 2 side to be electrically connected. 22nd on socket 3 side
The preparation of the light source device 211Il is completed by connecting the electrical contacts 24* and 24b of the light source device 211Il.

Therefore, by attaching the connector 131 of the endoscope 4 to the socket member 14 of the socket 1, the endoscope@4 can be used normally. In other words, the guide tube 15 passes through the insertion hole 1gk and faces the illumination hole 22, so that when the light source rung f' is turned on, the illumination light can be received into the light guide 46. J7m, 17b, I
re, 17ds is @1 electrical contact 11! *, 18
b, 18e, 18rl Ic connected. Further, the air supply connecting pipe 19 is connected to the connecting portion 10-20 of the gll.

Also, internal vision li! By attaching the camera 48 to the eyepiece 44 of the endoscope 4, the contacts 47 & , 47 of the endoscope 4
b, 47c, 47d and the contact 49 on the camera 48 side
*, 49b, 49c, and 49rl are in contact and connected.

Therefore, when a release button (not shown) is pressed to close the dust release contact 50, this signal i is transmitted to the rung control circuit 6 through the above-mentioned electrical system and increases the brightness of the light source run f5. Further, on the side of the camera 48 that receives light through the image guide 45, an exposure meter (not shown) calculates the amount of exposure and controls opening and closing of a shutter (not shown) to perform a predetermined exposure. When the shutter closes, the release contact 50 opens and the light source 5 returns to normal brightness. Further, the power from the power supply 27 is transmitted to the motor control circuit 51, and the operation driving motor 5 is transmitted in accordance with the operation of the release button.
2 to open and close the shutter, wind the film, etc.

In addition, if the connector 13 has a different type of round shape, it can be used by replacing it with another socket 3 that is compatible with it.

For example, Nuke and Toro 1 in the second embodiment, which will be described later, are also examples.

FIG. 2 shows a second embodiment of the present invention.

This shows Toro 1.

In this embodiment, a printed circuit board 62 is installed in the body 9 of the socket 61, and the first electrical contacts 63*, 63b are directly connected to the printed circuit board 62, and the second electrical contacts 24*, 14b are connected directly to the printed circuit board 62. It is now possible to connect to. Note that the 20th electrical contacts 64m and 64b are connected to the printed circuit board C2. moreover,
An external connector 65 is provided on the front surface of the socket 3, and is connected to the connecting conduit 3 through a connection port 68 provided on the side surface of the main body 9 of the socket 61. The connector 70 of the pump 69 installed can be connected.

Therefore, in this embodiment, various external devices can be connected using the external connector 65 to perform various operations. Furthermore, more powerful air can be supplied by using the external bong 7a69.

As explained above, the light source device for an endoscope of the present invention is provided with various types of sockets for connecting connectors on the endoscope side in a freely replaceable manner, so that endoscopes with various connector shapes can be connected to the same light source device. Not only can it be connected and used, but its functionality can be greatly improved by systematizing it around endoscopes. Furthermore, an economical endoscope system can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a first embodiment of the invention, and FIG. 2 is a perspective view showing a second embodiment of the invention. 2... Light source device, 3... Socket, 4... Endoscope, 5... Light source lamp, 1... Air supply pump, 8...
Socket installation part, 9...Main body (socket), 13
...Connector, 17*, 17b-contact pin, 18
*, l1jb...first electrical contact, 20...first connection part, 24m. 24b... second electrical contact, 25*, 25b...
・Second electrical contact, 27...power supply, 29*, 29
b... Electrical contact, 32... Second connection part, 33...
- Connecting pipe line, 44... Eyepiece section, 45... Image guide, 46... Light guide, 47m, 47b
, 47a, 47d--Contact, 48--Camera. Applicant's agent Patent attorney Takehiko Suzue 14-

Claims (1)

[Scope of Claims] (1) In an endoscope light source device that has a socket for connecting a connector on the endoscope side and transmits illumination light emitted from a light source rung to the endoscope side, the endoscope side What is claimed is: 1. A light source device for an endoscope, characterized in that it is provided with various types of sockets that can be exchanged to suit the respective connectors of the endoscope. (2. In the light source device for an endoscope according to claim 1, the socket has a first electrical contact that connects to an electrical contact provided on the connector on the family celebration @! side, and a first electrical contact that connects to an electrical contact provided on the connector on the a second electrical contact that connects to the provided electrical contact;
A light source device for an endoscope, characterized in that it has a transmission means for electrically connecting between the first and second electrical contacts. (3) An endoscope light source device according to claim 1. In the light source device, the socket has a first electrical contact that connects to an electrical contact provided on a connector of the internal connector, and a second electrical contact that connects to an external independent device side.
A light source device for an endoscope, comprising: transmission means for electrically connecting the first and second electrical contacts. (4) In the light source device for an endoscope according to claim 1, the socket has a first connecting portion connected to a fluid conduit on the endoscope side and a fluid conduit provided on the light source device side. A light source device for an endoscope, comprising: a second connection section that connects to a conduit; and a connection conduit that connects the first and second connection sections. (5) In the light source device for an endoscope according to claim 1, the socket includes a first connecting portion connected to a fluid conduit on the endoscope side and a fluid conduit connected to an external independent device side. A light source device for an endoscope, comprising: a second connection section that connects to a conduit; and a connection conduit that connects the first and second connection sections. (6) In the light source device for an endoscope according to claim 1, the socket has a first electrical contact that connects to an electrical contact provided on the light source device side, and a first electrical contact that connects to an electrical contact provided on the external independent device side. A light source device for an endoscope, comprising: a second electrical contact that connects to the electrical contact; and a transmission means that electrically connects the first and second electrical contacts.