JP2543884Y2 - Endoscope light source device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a light source device of an endoscope which can connect a plurality of types of endoscopes having different light source connector structures.

[Related Art] An endoscope must be illuminated with external light because it is inserted into a dark place such as a body and observation and inspection are performed. For this purpose, the endoscope is provided with a universal cord in which a light guide made of an optical fiber bundle is inserted, and the universal cord is detachably connected to a light source device having a lamp for illumination. Illumination light from an illumination lamp provided in the apparatus is transmitted via a light guide. In some electronic endoscopes, the light source device is integrally provided with a processor for processing a signal relating to an image of a subject from a solid-state imaging device provided at a distal end of an insertion portion.

The universal cord is provided with a connector portion at the tip thereof, and the connector portion is connected by being inserted into a socket portion for mounting a connector provided on the light source device side. In addition to the above-described light guide, a camera attached to an air supply passage or an endoscope as necessary is connected between the connector portion of the universal cord and the socket portion on the light source device side. There is a cable for supplying power to the device and a signal transmission / reception device for controlling the same. In the case of an electronic endoscope, a signal cable (power supply) for driving a solid-state imaging device provided at the tip of the insertion portion is provided. (Including a cable for use).

[Problems to be Solved by the Invention] By the way, an endoscope is a portable thing that can be carried by an operator as appropriate, and in the case of a light source device, particularly an electronic endoscope that has been widely used in recent years. In this case, a light source device and a processor are integrated, and a monitor and other devices are attached to the processor. Therefore, the processor is generally installed to a doctor's office or the like to some extent permanently. Therefore, since various types and types of endoscopes are used depending on the operator's preference, it is desirable that various endoscopes can be connected to the light source device. .

However, in the conventional art, the connector portion of the universal cord of the endoscope and the connector mounting portion of the light source device have their own structures, and for example, the manufacturer, model, type, etc. are different. If you do
Connection is often lost.

The present invention has been made in view of the above points, and a purpose thereof is to provide a light source for an endoscope which can connect endoscopes having different connector portions by a simple method. It is to provide a device.

[Means for Solving the Problems] In order to achieve the above-described object, the present invention provides a light source device body having a light source unit therein and a connector receiver for detachably mounting the connector unit from the front. A socket unit provided, a socket mounting portion provided on the light source device main body and having a bottom wall, left and right side walls, and a rear wall for detachably mounting the socket unit from above, and a socket mounting portion provided and mounted on the socket mounting portion. The front restricting part that locks the locking part of the socket unit to restrict the forward movement of this socket unit and the engaging part that is provided on the socket mounting part and that is provided on the mounted socket unit can be disengaged. And an upper restricting portion for restricting the upward movement of the socket unit.

[Operation] With this configuration, the socket unit releases the restriction by the upper restriction unit, pulls out the socket unit, and inserts the socket unit having a different structure from above, so that the socket unit is extremely easily prepared. Can be exchanged. In addition, the newly mounted socket unit is stably held by the socket mounting portion by the bottom wall, left and right side walls and the rear wall defining the socket mounting portion, and the front and upper regulating portions. Become.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

 First, FIG. 1 shows the overall configuration of the light source device.

In the figure, reference numeral 1 denotes a light source device.
Is composed of a light source unit 1a and a processor 1b. As is well known, a light source lamp, a color filter, a lens, and the like are mounted in the light source unit 1a, and an air supply passage is also provided. On the other hand, the processor 1b is equipped with an image signal processing device for processing a video signal sent from a solid-state imaging device provided at the end of the endoscope. Since various devices provided in the light source unit 1a and the processor 1b are well-known, their illustration and detailed description are omitted.

In the light source device 1, a light source socket 2 to which a light source connector 11 of a universal cord 10 of an endoscope is connected is provided in a light source 1b, and a control socket 3 in a processor 1b is provided with a universal socket. The control connector 12 of the cord 10 is connected.

As shown in FIGS. 2 and 3, the light source socket section 2 can detachably mount the socket unit 30 to a socket mounting section 20 provided on the main body of the light source section 1b. . The socket unit 30 has a connector receiver 31
The connector receiver 31 is provided with a light guide insertion portion 32 for inserting the light guide 13 protruding from the light source connector 11 and an air supply passage 33 so as to open on the front surface thereof. Further, a cable is connected to supply power to the camera mounted on the endoscope and to transmit and receive signals, and to transmit a signal for controlling operation of a diaphragm member for adjusting the light amount of the light source lamp. Multiple contact points
34 are formed. The other end of the cable 35 from each of the contact portions 34 is connected to an electric connector 36 extending downward.

The socket mounting portion 20 includes a bottom wall 20a and left and right side walls 2a.
0b, 20c and a rear wall 20d. An opening 21 through which the light guide 13 is inserted is formed in the rear wall 20d, and an air supply pipe 22 connected to an air supply passage 33 is protruded from the bottom wall 20a. The socket part 23 to which is connected is formed. The socket unit 30 is mounted on the socket mounting unit 20 from above, and the front and upper sides are open from the front because the light source connector 11 is mounted from the front.

As described above, the socket unit 30 is detachably mounted on the socket mounting portion 20 of the light source unit 1a in the light source device 1 as described above.
Endoscopes of different types and the like can be connected. Therefore, a mechanism for attaching and detaching the socket unit 30 to and from the socket mounting section 20 will be described below.

As shown by the arrow in FIG. 1, the socket unit 30 is detachable from above the socket mounting portion 20. By mounting the socket unit 30 from this direction, the air supply passage 33 is connected to the air supply pipe 22. In addition, the electrical connector 36 can be connected to the socket 23. When the socket unit 30 is mounted on the socket mounting portion 20, the lower side is regulated by the bottom wall 20a, the lateral direction is regulated by the side walls 20b and 20c, and the rear wall 20d is further
Therefore, the socket unit 30 does not move protrudingly in these directions. Anyway,
Forward and upward movement cannot be regulated by these walls.

In order to prevent the socket unit 30 from moving forward, a positioning projection 24 is provided at a position near the side wall 20b of the bottom wall 20a. A recess 37 to be fitted is provided. Therefore, when the socket unit 30 is mounted on the socket mounting portion 20 from above, the recess 37 is fitted into the positioning projection 24. An engaging plate 25 is attached to the side wall 20c, and the engaging plate 25 is provided with a step 25a, and a front side of the step 25a is a regulating wall 25b. The socket unit 30 is provided with a locking roller 38 on the side thereof, and when the socket unit 30 is mounted, the locking roller 38 is brought into contact with the regulating wall 25b. The positioning protrusion 24 and the engagement plate 25, and the concave portion 37 and the engagement roller 38 that engage with them constitute a front regulating portion that regulates the forward movement of the socket unit 30.

Next, as a mechanism for restricting upward deviation of the socket unit 30, the socket unit 30 is attached to the socket mounting portion.
As it must be possible to attach and detach from the 20, the regulation in this direction must be able to be easily disengaged. For this purpose, a through hole 26 is formed in a rear wall 20d forming the socket mounting portion 20, and a regulating roller 27 is mounted in the through hole 26 so as to be able to protrude and retract from inside the light source 1a. The regulating roller 27 is always moved from the rear wall 20d to the socket mounting portion 2 by a spring 28.
It is urged in a direction to protrude into zero. On the other hand, the socket unit 30 is provided with an engaging portion 39 with which the regulating roller 27 is engaged. The engagement portion 39 is provided with a push button 40 for unlocking. The push button 40 has a rear end portion 40a that can contact the regulating roller 27, and a projection 40b is formed at an intermediate portion thereof.
When the regulating roller 27 comes into contact with the rear end portion 40a of the push button 40, the push button 40 is pushed forward, and the projection 40b is brought into contact with the front wall portion 30a of the socket unit 30. Has become. When the push button 40 is pushed in, the regulating roller 27 is pushed back into the light source unit 1a.However, in order to regulate the pushing stroke end of the push button 40, the projection 40b is provided on the wall behind the socket unit 30. The part 30b can be contacted. The regulating roller 27 and the engaging portion 39 constitute an upper regulating portion, and the push button 40 constitutes a regulation releasing mechanism.

The present embodiment is configured as described above. A certain type of socket unit is mounted on the socket mounting portion 20 of the light source unit 1a of the light source device 1, and a predetermined type of socket unit is mounted on the socket unit. It is assumed that the light source connector 11 of the universal cord 10 in the endoscope is connected. To replace an endoscope having a light source connector having a structure different from that of the light source connector 11 with the endoscope, the socket unit must be replaced. Hereinafter, a method of replacing the socket unit will be described. Here, in order to distinguish between the currently mounted socket unit and the socket unit which is mounted in exchange with the currently mounted socket unit, each of the constituent units of the currently mounted socket unit is denoted by [']. Shall be attached.

Thus, to detach the socket unit 30 'from the socket mounting section 20 of the light source section 1a, the push button 40' is pushed with a finger or the like. As a result, the regulating roller 27 constituting the upper regulating section is pushed back into the light source section 1a against the spring 28, whereby the upward regulation of the socket unit 30 'is released. Therefore, by pulling out the socket unit 30 ′ upward, the socket unit 30 ′ can be very easily detached from the socket mounting portion 20 without using any tool.

Next, the socket unit 30 to be mounted in place of the socket unit 30 'described above is inserted from above the socket mounting portion 20. Here, although the regulating roller 27 is in a state of looking into the socket mounting portion 20 from the through hole 26 by the action of the spring 28, the socket mounting portion of the socket unit 30 is
By inserting the regulating unit 27 into the light source unit 1a, the regulating roller 27 is retracted into the light source unit 1a against the spring 28.
There is no hindrance to the insertion and mounting of the 30 into the socket mounting section 20.

Then, when the socket unit 30 is inserted to some extent, the locking roller 38 engages with the regulating wall 25b of the engaging plate 25 and rolls along the regulating wall 25b, so that the socket unit 30 is directly below. It is guided to be pushed toward. Therefore, the recess 37 in the socket unit 30
Are securely fitted to the positioning projections 24, the air supply passage 33 is connected to the air supply pipe 22, and the electric connector 36 is connected to the socket 23. When the socket unit 30 is pushed to a predetermined position, the regulating roller 27
Is engaged with the engaging portion 39 by the action of the spring 28.

As a result, the socket unit 30 is
The front regulation part which is regulated by the bottom wall 20a, the side walls 20b, 20c and the rear wall 20d forming the positioning projection 24 and the engagement plate 25, and the recess 37 and the engagement roller 38 which engage with them. , And is reliably fixed by the upper regulating portion including the regulating roller 27 and the engaging portion 39.

Here, when the socket unit 30 is mounted on the socket mounting portion 20 of the light source device 1, the greatest force is applied when the socket unit 30 is detached from the mounted light source connector 11, and at this time, the socket unit 30 Strong pulling force is applied. However, the socket mounting portion 20 is provided with the positioning protrusion 24 and the engaging plate 25, and the socket unit 30 is formed with a concave portion 37 in which the positioning protrusion 24 is fitted, and the contacting portion is in contact with the regulating wall 25 b of the engaging plate 25. Since the front regulation portion including the stop roller 38 is provided, a strong regulation force acts on the front. Therefore, when the light source connector 11 is pulled out, the socket unit 30 can be prevented from dropping out of the socket mounting portion 20 together with the light source connector 11. In addition, the direction in which the socket unit 30 is attached to and detached from the socket mounting portion 20 is substantially perpendicular to the direction in which the light source connector 11 is attached and detached, and almost no external force acts in this direction. 27 can be fixed by a simple regulation that only engages the socket unit 30, and the regulation can be released by pushing the regulation roller 27 with the push button 40 and pulled out upward. Attachment / removal to / from the part 20 becomes extremely easy.

In the above-described embodiment, the positioning protrusion and the engaging plate are provided on the socket mounting portion side, and the concave portion and the locking roller are provided on the socket unit side. On the contrary, the concave portion and the locking roller are provided on the socket unit side. The positioning protrusion and the engagement plate may be provided on the socket unit side, and the positioning protrusion and the engagement plate may be provided on the socket unit side. In addition, as the upper regulation part,
A steel ball or the like may be used instead of the above-described regulating roller, and the regulating roller and other members may be provided on the socket unit side.

[Effects of the Invention] As described above, the present invention relates to the attachment / detachment direction of the socket unit to / from the socket attachment portion, and the attachment / detachment direction of the light source connector, which exerts the greatest force on the socket unit when the socket unit is attached. By directing upward substantially orthogonally, a front restricting portion is provided which is extremely firmly fixed to the front where the strongest force acts on the socket unit. The endoscope is configured to be detachably attached to the mounting portion, and is configured to be detachably engaged with the engaging portion of the socket unit above where almost no external force acts, so that a plurality of endoscopes having different structures in the light source device are provided. It can be connected, and the replacement of the socket unit for the light source device can be performed with extremely simple operation without using special tools etc. Therefore, it can be performed very easily, and when the socket unit is mounted on the light source device, various effects such as being maintained in an extremely stable state can be obtained.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is an external view showing an entire configuration of a light source device, FIG. 2 is an explanatory diagram of a configuration of a socket unit and a socket mounting portion, and FIG. It is sectional drawing of a unit. 1: light source device, 1a: light source, 2: light source socket, 10: universal cord, 11: light source connector, 13: light guide, 20:
Socket mounting part, 20a: bottom wall, 20b, 20c: side wall, 20d: rear wall, 21: opening, 22: air pipe, 23: socket part, 24: positioning projection, 25: engagement plate, 25b: regulating wall, 26 : Through hole, 27: Regulator roller, 30: Socket unit, 31: Connector receiver, 32: Light guide insertion part, 33: Air supply passage, 36: Electric connector part, 3
7: recess, 38: locking roller, 39: engaging part, 40: push button.

Claims (1)

(57) [Scope of request for utility model registration] 1. A light source device in which a connector portion of a universal cord of an endoscope is detachably connected, a light source device main body having a light source portion therein, and a connector receiver for detachably mounting the connector portion from the front. Is provided in the socket unit provided on the front part, the light source device body,
A bottom wall for detachably mounting the socket unit from above, a socket mounting portion having left and right side walls and a rear wall,
A front restricting portion that is provided on the socket mounting portion, locks a locking portion of the mounted socket unit, and regulates forward movement of the socket unit; A light source device for an endoscope, wherein the light source device is provided with an upper restricting portion which is removably engaged with an engaging portion provided on the socket unit and restricts the upward movement of the socket unit. .