JPH07184857A - Endoscope system - Google Patents

Abstract

PURPOSE:To prevent handily and accurately a poor contact due to the distortion of a connector and the fatigue of a spring material contact from occurring. CONSTITUTION:A groove 17 in the circumferential direction is provided on a light guide connector 4 of an endoscope 2 and a contact unit 21 having a plurality of contacts 19 mounted thereon is provided movably vertically and horizontally. Thus, it provides a structure allowing the preventing of poor contact even if distortion of the light guide connector 4 and fatigue of a spring material contact 15 are present.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope light source device having an illumination light supply and an electric signal contact, and an endoscope having a light guide connector connected to the light source device and having an electric signal contact. And an endoscope system having.

[0002]

FIG. 37 shows a connection structure between a light guide connector of an endoscope and a light source device in a conventional endoscope system.
Shown in. The light source device 201 for an endoscope has an optical system 202 that collects examination light from a lamp, and a spring material contact 203 that sends various signals and power to the endoscope 205, for connecting the endoscope 205. There is a connector receiver 204.

The endoscope 205 has a light guide 206 for receiving the illumination light, and a contact pin 20 for contacting a spring contact 203 of the light source device 201 to receive a signal and a power source.
7, and a light guide connector 208 connected to the connector receiver 204 of the light source device 201 is provided.

[0004]

In the conventional endoscope system, the electrical connection between the endoscope 205 and the light source device 201 is made when the connector 208 of the endoscope 205 is pushed to a prescribed position. The contact pin 207 on the endoscope side pushes up the spring material contact 203 on the light source device 201 side, and the contact pressure establishes electrical conduction.

However, the connector receiver 2 of the light source device 201
04, the connector 208 of the endoscope 205 causes stress on the contact point 203 of the light source device 201 to cause extreme deformation or settling, or the contact rattle or the connector receiver 204 may be distorted or deformed. Sometimes did not come into contact with each other, resulting in contact failure.

The present invention has been made in view of the above problems, and has a structure for easily and reliably preventing contact failure between a connector and a connector receiver, distortion of a connector or a connector receiver, and contact failure due to a set of spring material contacts. An object is to provide an endoscope system.

[0007]

Means and Actions for Solving the Problems The contact portion of the endoscope or the light source device for an endoscope is an integral unit, and the unit is provided movably in a certain range in the vertical and horizontal directions.
With this structure, the looseness of the connection between the light source device for an endoscope and the endoscope and the distortion of the connector or the connector receiver are absorbed by the movement of the integrated unit, and the contact of the spring material contact is surely made without causing the set contact of the spring material contact.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 relate to a first embodiment of the present invention.
Shows the configuration in the vicinity of the light source device in the endoscope system of the first embodiment, and FIG. 2 shows the AA cross section of FIG.

As shown in FIG. 1, the endoscope system 1 of the first embodiment is an optical endoscope (hereinafter simply referred to as an endoscope) 2
And a photo-taking device 3 detachably attached to the endoscope 2, and an endoscope light source device 5 to which a light guide connector 4 of the endoscope 2 is detachably connected.

The endoscope 2 has an elongated insertion portion 6, an operation portion 7 provided at a base end of the insertion portion 6, an eyepiece portion 8 provided at a rear end of the operation portion 7, and an operation portion. 7 and a light guide cable 9 extended from the light guide cable 9, and a light guide connector 4 is provided at the end of the light guide cable 9.

A light guide 11 is inserted into the insertion portion 6, and a rear end side of the light guide 11 is inserted into a light guide cable 9 extending from the operation portion 7, and the light guide connector 4 has an end thereof. The portion is fixed, and the examination light supplied from the endoscope light source device 3 is transmitted and emitted from the end face of the distal end portion to illuminate a subject such as a diseased portion.

The illuminated subject is imaged on the front end surface of the image guide disposed on the focal plane by an objective lens (not shown) provided on the front end portion, and the image is transmitted to the end surface on the eyepiece 8 side, and the eyepiece It can be observed with the naked eye through the lens. Further, when the photographing device 3 is attached to the eyepiece unit 8, when the photographing button is operated, an image can be formed on the film through an image forming lens, a rotating mirror and the like (not shown).

Further, the photographic device 3 has a photometric means and a control circuit therefor, measures the exposure amount of the film, and when the exposure amount becomes appropriate, the control circuit causes the contact point 12 and the signal line 13 of the eyepiece 8 to come into contact. A control signal for closing the shutter can be sent to the light source device 5 for an endoscope via the light source device 5. Further, the control circuit and the like are configured so that power is supplied from the endoscope light source device 5 via the signal line 13.

On the other hand, the endoscope light source device 5 has a lamp (not shown), a shutter for blocking the examination light from this lamp,
The endoscope 2 has an optical system 14 that collects the examination light from the lamp, and a spring material contact 15 that sends various signals and power to the endoscope 2.
Connector receiver 1 to which the light guide connector 4 of is connected
There is 6.

Further, the light guide 4 on the endoscope 2 side is provided with a groove 17 in the circumferential direction, and the groove 17 is provided with a single or a plurality of protrusions or recesses 18. A cylindrical contact unit 21 that has a contact pin 19 that contacts the spring material contact 15 on the light source device 5 side and receives a signal and a power source and has a thickness slightly smaller than the width of the groove 17 of the guide connector 4 is It is provided in the groove 17.

The contact unit 21 is provided with a concave portion or a convex portion 22 for fitting in the convex portion or the concave portion 18 of the groove 17 with a play.

An air supply pipe 23 is provided in the endoscope 2, and the pipe 23 is connected to a base protruding from the light guide connector 4, and the base is connected to the air supply system of the light source device 5. It is supposed to be done. In addition, the spring contact 15
The periphery of is covered with a cover portion 24 so that the spring material contact 15 and the electrical connection portion are not exposed.

In the endoscope system 1 having such a contact structure, the contact unit 21 of the endoscope 2 has the groove 1
The projections 7 and the projections or recesses 18 allow the light guide connector 4 to be fixed in the front-rear direction and the rotation direction, and to be movable in the up-down and left-right directions as shown by the arrows in FIG. 2, so that the endoscope 2 is connected to the light source device 5. The backlash and the distortion of the connector 4 in this case are absorbed by the movement of the contact unit 21.

With such a contact structure, it is possible to prevent stress on the contact portion, distortion of the connector, and non-contact of the contact due to fatigue of the spring material contact 15, and it is possible to surely establish conduction between both contacts with a simple structure. it can.

FIG. 3 shows the configuration of the main part of the endoscope system of the second embodiment of the present invention. In the first embodiment, a movable contact structure is provided on the endoscope 2 side, but in this embodiment, a movable contact structure is provided on the light source device 5 side.

The contact pin 19 is fixed to the light guide connector 4 of the endoscope, while the spring material contact 15 of the light source device 5 is provided.
Is provided in the contact unit 32 housed in the groove 31 provided in the connector receiver 16. As shown in FIG. 4, the groove 31 of the connector receiver 16 has a single or a plurality of convex or concave portions 3.
3 is provided, and the contact unit 32 has a convex or concave portion 3.
3 is provided with a concave or convex portion 34 that fits with play. Then, the spring material contact 1 of the contact unit 32
The portion 5 has a structure capable of moving vertically and horizontally.

Incidentally, the contact 15 in FIG. 3 is C- of FIG.
It is shown in the section D-E. Although the contact 15 is provided asymmetrically with respect to the center in this embodiment, it may be provided symmetrically as in the first embodiment. The other structure is the same as that of the first embodiment. With such a structure, the same effect as that of the first embodiment can be obtained.

In the first and second embodiments, the contact point on the endoscope side or the contact point on the light source device side is provided so as to be movable so as to absorb backlash, but it is symmetrical with respect to the center as in the following modifications. A connector structure may be provided in which a pair of contacts are provided at specific positions, and the pair of contacts are electrically connected to each other so that when one of them comes into contact, a predetermined connection function is achieved.

FIG. 5 shows a connector structure of a first modification of the second embodiment. In FIG. 5, reference numeral 41 denotes a cylindrical type provided in the endoscope light source device, which is a connector (socket) for connecting the endoscope body. The connector 41 is fitted with a light guide port 42 for guiding light to the endoscope main body, an air supply connector portion 43 for sending gas from the light source device to the endoscope main body, and a C ring 50 attached to the plug 47. There is a groove 44.

Reference numerals 45a to 45e and 46a to 46e denote contact springs for electrical connection provided on the connector 41, which are electric contact pins 51a to 51e and 52a to 5e, respectively.
Contact with 2e in a connected state. The plug 47 is provided at the tip of the light guide of the endoscope body connected to the connector 41.

The plug 47 has a light guide entrance end 48 inserted into the light guide port 42, an air supply plug portion 49 connected to the air supply connector portion 43, and a C ring 50 made of an elastic member fitted in the groove 44. There is. In addition, electric contact pins 51a to 51e and 52a to 52e are attached to the plug 47, and the contact springs 45 are connected to each other in a connected state.
a to 45e and 46a to 46e.

As shown in FIG. 6, the contact springs 45a and 46a of the connector 41 are arranged symmetrically with respect to the central axis of the connector 41 and are electrically connected. Contact springs 45b and 46b, 45c and 46c, 45d and 46d, 4
5e and 46e are also arranged similarly to 45a and 46a, and are electrically connected by lead wires or the like. And the electric circuit 5
4 is connected.

As shown in FIG. 7, the contact pins 51a and 52a of the plug 47 are provided at positions symmetrical with respect to the central axis of the plug 47 and are electrically connected. Contact spring 51
b and 52b, 51c and 52c, 51d and 52d, 51e
And 52e are also arranged in the same manner as 51a and 52a, and are electrically connected by lead wires or the like. Then, it is connected to the electric circuit 55.

Next, the operation will be described. FIG. 8 is a sectional view when the connector 41 and the plug 47 are connected.
The C-ring 50 fits into the groove 44 so that the plug 4
7 is mechanically fixed to the connector 41. By fitting the light guide entrance end 48 into the light guide port 42, the endoscope light source device and the endoscope body are optically connected.

By connecting the air supply plug section 49 and the air supply connector section 43, the air supply tube of the endoscope light source device and the air supply tube of the endoscope body are connected. Further, for electrical connection, the contact springs 45a to 45e are connected to the contact pins 51a to 51e,
The contact springs 46a to 46e are contact pins 52a to 52e.
It is secured by making contact with each.

FIG. 9 shows a case where a shearing force is applied to the plug 47 from above in the state of FIG. 8 in which the connector 41 and the plug 47 are connected. At this time, the contact pin 51c and the contact spring 45c are separated from each other, and even if electrical connection is not secured here, the contact spring 45c and the contact pin 51c
The contact pressures of the contact springs 46c and the contact pins 52c, which are electrically connected to c and arranged symmetrically with each other, are increased, and electrical connection is secured.

Even when the shearing force is applied from different directions, the connector shape is cylindrical and the contact spring and the contact pin are provided symmetrically with respect to the axis of the connector, so that the same effect can be obtained. Therefore, even if a shearing force is applied to the plug 47, there is an effect that electrical contact failure does not occur.

In addition, since there are two sets of electrical contacts for one signal, a cable connected to a contact spring provided in the connector in the endoscope light source device or in the endoscope body There is also an effect that even if one cable connected to the contact pin provided on the plug is broken, it can be operated normally.

Next, a second modification will be described. In FIG. 10, reference numeral 71 is a rectangular connector provided in the endoscope light source device for connecting the endoscope main body. The connector 71 includes a light guide port 72 for guiding light to the endoscope body,
There is an air supply connector portion 73 connected to an air supply pipe that sends gas from the light source device to the endoscope body.

Reference numerals 75a to 75f and 76a to 76f are contact springs for electrical connection provided on the connector, which are electric contact pins 81a to 81f and 82a to 82f, respectively.
And contact it in a connected state. Reference numeral 77 is a plug provided at the tip of the light guide of the endoscope body connected to the connector 71.

The plug 77 has a light guide entrance end 78 inserted into the light guide port 72 and an air supply plug portion 79 connected to the air supply connector portion 73. Reference numerals 81a to 81f and 82a to 82f denote electric contact pins attached to the plug 77, which are respectively connected to the contact springs 75a to 7f.
5f and 76a to 76f are connected.

As shown in FIG. 11, the contact springs 75a and 76a of the connector 71 are provided at vertically symmetrical positions of the connector 71 and are electrically connected. Contact spring 75b
And 76b, 75c and 76c, 75d and 76d, 75e and 76e, and 75f and 76f are arranged and electrically connected in the same manner as 75a and 76a. Then, it is connected to the electric circuit 84.

As shown in FIG. 12, the contact pins 81a and 82a of the plug 77 are provided symmetrically with respect to the central axis of the plug 77 and are electrically connected. Contact spring 8
1b and 82b, 81c and 82c, 81d and 82d, 81
e and 82e and 81f and 82f are also arranged and electrically connected in the same manner as 81a and 81a. And the electric circuit 85
It is connected to the.

Next, the operation will be described. FIG.
(A) is a sectional view when the connector 71 and the plug 77 are connected. By fitting the light guide entrance end 78 into the light guide port, the endoscope light source device and the endoscope body are optically connected. By connecting the air supply plug section 79 and the air supply connector section 73, the air supply tube in the endoscope light source device and the air supply tube of the endoscope main body are connected. Further, for electrical connection, the contact springs 75a to 75e are connected to the contact pins 81a to 81e,
The contact springs 76a to 76e are contact pins 82a to 82e.
It is secured by making contact with each.

FIG. 13B shows a case where a shearing force is applied to the plug 77 from above in the state of FIG. 13A in which the connector 77 and the plug 71 are connected. At this time, the contact pin 81c and the contact spring 75c are separated from each other, and even if electrical connection is not secured here, the contact spring 75c
c, a contact spring 76c and a contact pin 82c, which are electrically connected to the contact pin 81c and arranged at symmetrical positions.
The contact pressure is increased, and the electrical connection is secured. Thus, even if a shearing force is applied to the plug 77, there is an effect that electrical contact failure does not occur.

Further, since there are two sets of electric contacts for one signal, a cable connected to a contact spring provided in the connector in the endoscope light source device or in the endoscope main body There is also an effect that even if one cable connected to the contact pin provided on the plug is broken, it can be operated normally.

Next, a third modification will be described. Figure 1
In FIG. 4, reference numeral 91 is a cylindrical connector provided in the endoscope light source device for connecting the endoscope main body. Connector 91
Has a light guide port 92 for guiding light to the endoscope body. 9
3a and 93b are L-shaped grooves engraved inside the connector 91, which are electric contact pins 9 attached to the connector 97.
It is for passing 9a and 99b.

Inner portions 94 of the L-shaped grooves 93a and 93b
Contact springs 95a and 95b are provided on the side surfaces of a and 94b. Contact springs 96a and 96b are also attached to the side surfaces facing the contact springs 95a and 95b.

On the other hand, 97 is a plug provided at the tip of the light guide of the endoscope body connected to the connector 91. The plug 97 has a light guide entrance end 98 that is inserted into the light guide port 92. 99a and 99b are electrical contact pins that vertically project from the side surface of the plug 97.

The connector 91 and the plug 97 are connected by the groove 9
3a and the contact pins 99a, 93b and 99b are aligned and inserted, and after insertion, the plug 97 is completed by twisting the plug 97 to the left. When the connection between the connector 91 and the plug 97 is completed, the incident end 98 is inserted into the light guide port 92, the endoscope light source device and the endoscope body are optically connected, and the contact pins 99a,
99b is electrically and mechanically connected by being sandwiched between contact springs 95a and 96a and 95b and 96b, respectively. FIG. 15 is an enlarged view of the vicinity of the contact springs 95a and 96a and the contact pin a when the connector 91 and the plug 97 are connected. The contact springs 95a and 96a and 95b and 96b are electrically connected.

Contact springs 95a, 96 when the plug 97 is tilted with respect to the connector 91 due to shearing force applied to the plug 97 with the connector 91 and the plug 97 connected to each other.
FIG. 16 is an enlarged view of the vicinity of a and the contact pin 99a.

In FIG. 16, the contact spring 96a and the contact pin 99a are not in contact with each other due to the inclination of the plug 97. However, the contact pin 99a has a higher contact pressure than the contact spring 95a electrically connected to the contact spring 96a as compared with the state shown in FIG. 15, so that the electrical connection is secured.

As described above, even when a shearing force is applied to the connector, there is an effect that electrical contact failure does not occur. In addition, in this configuration, there is an effect that a portion for performing electrical connection can also serve as mechanical connection.

Next, a connector structure for interlocking the contact operation of the contact portion with the connecting operation of the endoscope to ensure the connection between the contact point of the endoscope and the light source contact point will be described. FIG. 17 shows the structure of this connector structure 103. FIG. 18 shows a perspective view of the socket portion on the light source side, and FIG. 19 shows a perspective view of the connector portion on the endoscope side.

As shown in FIGS. 17 and 18, the connector section 105 of the endoscope has a light guide 109 and an air supply tube 108.
Are projected on the front surface, and a plurality of electric contacts 10 are provided on the outer peripheral surface on the tip side.
7 is provided so as to slightly project.

On the other hand, as shown in FIGS. 17 and 19, the light source socket portion 101 is provided with a plurality of guide grooves 106 on the inner peripheral surface of the mounting opening 102 into which the connector portion 105 is inserted. The electrical contact 107 can be housed in the connector and the connector 105 can be inserted.

Each of the guide grooves 106 is formed in a hook shape, and an electric contact 110 is provided at the deepest portion. Further, a rotatable rotary plate 111 is housed in a portion deeper than the guide groove 106 of the mounting opening 102, and the rotary plate 111 is biased toward the entrance side by a spring 114 via a sliding ring 113.

The rotary plate 111 is provided with a hole into which the light guide 109 is inserted, and a condenser lens and the like (not shown) are arranged behind the hole. Further, the rotary plate 111 is also provided with a hole into which the air supply pipe 108 is inserted, and the air supply tube 112 is connected to this hole.

Next, the operation will be described. The electrical contact 107 of the connector portion 105 is inserted along the guide groove 106 of the mounting opening 102, and the rotating plate 111 of the light source socket portion 101 is pushed by the abutting surface (front surface) of the connector portion 105. When the electric contact 107 is inserted up to the abutment of the guide groove 106, the connector portion 105 is twisted and rotated clockwise.

The rotating plate 111 can rotate by sliding on the surface of the sliding ring 113. An air supply tube 1 is attached to the rotary plate 111.
Even if the rotary plate 111 rotates, the flexibility of the air supply tube 112 does not hinder the rotation even if the rotary plate 111 rotates.

An air supply pump is connected to the air supply tube 112, and air for supplying air to the distal end of the endoscope can be sent out according to the setting of the operator. Further, the optical axis of the light guide 109 is located at the center, and the optical axis is not displaced by the rotation at the time of mounting, and the examination light is guided to the distal end portion of the endoscope through the light guide.

The connector section 105 is rotated to rotate the guide groove 10
By moving to the abutting of 6 in the rotation direction,
The connector portion 105 is pushed back by the repulsion of the spring 114 connected to the sliding ring 113, and the electric contact 110 on the light source side and the electric contact 107 on the endoscope side are electrically connected.

This system has the following effects. Since the electric contact 107 on the endoscope side is pressed against the electric contact 110 on the light source side by the repulsion of the spring 114, reliable conduction is achieved. Further, since the connector portion 105 of the endoscope is fixed by using the guide groove 106 as a guide, rattling of the connecting portion is reduced, and conduction failure due to rattling is also reduced.

Next, a second embodiment of the connector structure having the same function as in FIG. 17 will be described. 20 and 21 show the configuration and operation explanatory diagram thereof. There is a ring-shaped groove at the tip of the light guide 115 of the connector section 116 of the endoscope, and a spring-like C ring 119 in which a part of the ring is cut is fitted therein, and the connector section 116 is a light source. A click feeling is given when the socket 104 is inserted up to its abutment to prevent the socket 104 from coming off.

The connector section 116 has a light guide 115.
Further, the air supply pipe 118 is provided on the front surface, and the electrical contact 117 is provided on the outer peripheral surface. Then, the connector portion 11
6 can be inserted into the socket portion 104 using the light guide 115 and the air supply pipe 118 as guides. When the connector part 116 is inserted up to the abutment of the socket part 104, one end of the protruding electrical contact 121 is pushed.

The electric contact 121 operates as a pendulum around the shaft 123, and the other end contacting the connector portion 116 is projected in response to the pushing, and the electric contact 12 is contacted as shown in FIG.
1 can be contacted with an electrical contact 117.

The electric contact 121 has a spring property, and the electric contact 121 and 117 can flexibly contact each other. When the connector portion 116 of the endoscope is removed from the contacted state as shown in FIG. 21, the spring 120 returns the electrical contact 121 to the initial position, that is, the state shown in FIG. A sufficient contact pressure can be secured because the electric contacts are pressed against each other by the force of pushing the connector portion 116.

FIG. 22 shows the construction of the third embodiment of the connector structure having the above-mentioned functions. FIG. 23 shows the light source socket 12
5'shows a perspective view. Guide pins 124 are erected on both sides of the endoscope connector portion 25, and guide grooves 132 are provided.
The electrical contact pin 130 of the connector portion contacts the electrical contact spring 126 on the light source socket side at a position where the connector portion inserted into the light source socket portion is inserted up to butting.

A force is applied to the electric contact pin 130 on the light guide side in an upward direction and a force is applied to the electric contact pin on the universal cord side in a downward direction due to the weight of the universal cord 133 around the guide pin 124 as a contact pressure. Can be increased, and the conductivity can be further increased.

FIG. 24 shows the construction of the fourth embodiment of the connector structure having the above functions. FIG. 25 shows an enlarged view of the contact portion. The endoscope connector section 134 is replaced with the light source socket section 134 '.
Then, the contact pin 135 of the connector portion 134 is fitted between the two leaf springs of the electric contact 137 on the light source side to establish electrical conduction. Since the contact surface of the contact with respect to the rattling is parallel to the rattling direction, there is an advantage that the contact pressure does not change with respect to the rattling.

26 and 27 show the connector structure of the fifth embodiment having the above-mentioned function. FIG. 26 is a side view of the light source side socket portion and the endoscope side connector portion before insertion. A light guide 147 and an air supply nozzle 148 are provided on the end surface of the endoscope side connector section 139, and the light source side socket section 14 is provided.
No. 0 light guide connection hole 149 and air supply hole 150 can be inserted respectively.

When the endoscope side connector section 139 is not connected to the light source side socket section 140, the contact releasing hook 141 is pushed out by the spring 142 as shown in FIG. 26, and one end of the hook 141 is on the connector section 139 side. Overhangs.

The other end of the contact release hook 141 has a spring contact 1
The movement of the spring 144 of the reference numeral 43 due to the repulsion is restricted. The contact surface of the contact 143 with the contact pin 145 is processed into a hemispherical shape to secure the contact surface with the contact pin 145. The signal line 146 is connected to the contact 143,
The signal line 146 is electrically connected to the signal processing circuit.

As shown in FIG. 27, the endoscope side connector section 1
Contact release hook 141 when 39 is inserted to the end
Is pushed by the endoscope side connector portion 139 and slides. By this slide, the hook 141 that regulates the contact point 143 is released, and the contact point 143 is lowered by the repulsion of the spring 144 and comes into contact with the contact pin 145 on the endoscope side to establish conduction.

When removing the endoscope side connector section 139, the endoscope release knob 246 is pulled up and at the same time the endoscope side connector section 139 is removed. If the release knob 246 is returned to the position shown in FIG. 141 is returned by the repulsion of the spring 142, and restricts the movement of the contact 143. With this connector structure, a stronger spring pressure than the conventional spring contact can be secured and contact failure can be eliminated.

Next, a first embodiment of the connector structure having a scope detecting section will be described. 28 and 29 show a connector structure of this embodiment, FIG. 28 shows a sectional view of the light guide connector receiving portion 151 of the light source device and the light guide connector 152 of the endoscope, and FIG. The detailed block diagram of a scope detection part is shown.

At the tip of the light guide connector 152 of the endoscope, a light guide 153 for injecting lamp light from the light source device and an air supply nozzle 154 for receiving air sent from a pump incorporated in the light source device are attached. Around the light guide connector 152, an iron contact pin 155, the other end of which is connected to a signal line, is attached.

The light source device includes a light guide connector 152.
A light guide receiving block 156 for inserting and fixing is fixed to the light source device chassis. Then, a magnetic contact leaf spring 157 made of a magnetic material, the other end of which is connected to the signal line 158, is fixed to the light guide receiving block 156 facing the contact pin 155 arranged in the light guide connector 152. There is.

A coil 159 is wound around the magnetic contact leaf spring 157, and the other end of the coil 159 is connected to the control circuit 160. The control circuit 160 is connected to the scope detection unit 161 that detects whether the light guide connector 152 is inserted in the light source device or not.

In the scope detection section 161, a bifurcated scope detection block 162 shown in FIG. 29 is fixed to a light guide receiving block 156, and a hole 165 is provided between the bifurcated foot portion 163 and the foot portion 164 of the scope detection block 161.
A dogleg-shaped light-shielding plate 166 that is rotatable about the center of rotation is arranged so as to completely block between the foot portion 163 and the foot portion 164.

A light emitting element is attached to the end surface of the foot portion 163 on the foot portion 164 side, and a light receiving element is attached to the end surface of the foot portion 164 on the foot portion 163 side. The other ends of the light emitting element and the light receiving element are connected to the control circuit 160. Has been done.

Next, the operation will be described. When the light guide connector 152 is attached to the light source device, the light guide 153
Pushes the lower end of the light shielding plate 166 of the scope detection unit 161,
The light shielding plate 166 is removed from between the legs 163 and 164, the light from the light emitting element of the legs 163 is incident on the light receiving element of the legs 164, and the light guide connector 152 is attached to the light source device. Is detected and the detected signal is sent to the control circuit 160.

The control circuit 160 is the light guide connector 1
When 52 receives the inserted signal, a current is passed through the coil 159, and when the current flows through the coil 159, the magnetic contact leaf spring 157 is magnetized by electromagnetic induction. When the leaf spring 157 for magnetic contact is magnetized, the leaf spring 15 for magnetic contact is magnetized.
7 is positively attracted to the iron contact pin 155 by magnetic force.

This embodiment has the following effects. The magnetic contact leaf spring 157 and the contact pin 155 are positively attracted to each other by the magnetic force, so that the magnetic contact leaf spring 157.
And the electrical conduction of the contact pin 155 is increased. Even if the oxide film is formed on the contact pin 155, if the contact pressure between the contact leaf spring 157 and the contact pin 155 is increased, the film is broken and electrical conduction is secured. Also, the light guide connector 152
Since the spring pressure of the leaf spring for contacts when attaching and detaching is not high,
The amount of attachment and detachment is reduced.

Next, FIG. 30 shows a connector structure of the second embodiment having a scope detecting section. FIG. 30 shows a sectional view of the light guide connector portion of the light source device and the endoscope light guide connector.

A light guide 172 for injecting lamp light from the light source device and an air supply nozzle 173 for receiving air sent from a pump incorporated in the light source device are attached to the tip of the light guide connector 171 of the endoscope. Around the light guide connector 171, a metal contact pin 174 or the like having the other end connected to a signal line is attached.

A light guide receiving block 175 for inserting the light guide connector 171 of the light source device is fixed to the light source device chassis, and faces the contact pin 174 arranged on the light guide connector 171. 175 has a signal line 18 at the other end.
A contact leaf spring 176 having a U-shaped front end made of a spring metal plate connected to the No. 5 is fixed.

Light guide receiving block 175 A ring member having a threaded portion 179 and a threaded portion 182 on the outer periphery on the front side on the endoscope side, and a taper portion 180 facing a leaf spring for contact 176 on a part of the inner cylinder. A screw portion 179 is rotatably screwed to a ring support member 186 fixed to the light source device chassis with a screw portion 179.

The threaded portion 182 of the ring member 178 is connected to the motor 177 via the feed screw 181.
The motor 177 is connected to the motor controller 183.
The motor control unit 183 is connected to the scope detection unit 161 that detects whether the life guide connector 171 is inserted in the light source device or not.

The scope detecting section 161 has the same structure as that shown in FIG. Further, the motor control unit 183 is also connected to a scope removal switch 188 installed on the light source device front operation panel.

Next, the operation will be described. When the light guide connector 171 is inserted into the light source device, the light guide 172 is inserted.
Pushes the lower end of the light shielding plate 166 of the scope detection unit 161,
The light shielding plate 166 is removed from between the legs 163 and 164, the light from the light emitting element of the legs 163 is incident on the light receiving element of the legs 164, and the light guide connector 171 is inserted into the light source device. Is detected, and the detected signal is sent to the motor controller 183.

When the motor control section 183 receives a signal indicating that the light guide connector 171 is inserted, the motor control section 183 rotates the motor 277 through the feeding screw 181 so that the ring member 178 moves to the light guide receiving block 175 side.

When the ring member 178 moves toward the light guide receiving block 175, the tapered portion 180 of the ring member 178 presses the contact leaf spring 176 against the contact pin 174 of the light guide connector 171.

This embodiment has the following effects. By pressing the leaf spring for contact 176 against the contact pin 174 by the tapered portion 180 of the ring member 178, electrical conduction is enhanced. Even if the oxide film is formed on the contact pin 174, if the contact pressure between the contact leaf spring 176 and the contact pin 174 is increased, the film is broken and electrical conduction is secured. Further, since the spring pressure of the leaf spring for contact when attaching and detaching the light guide connector 171 is not high, the attaching / detaching amount becomes small.

FIG. 31 and FIG. 32 show a third embodiment of the connector structure provided with the scope detection section, and FIG. 31 shows a sectional view of the light guide connector section of the light source device and the endoscope light guide connector. FIG. 31 shows a detailed configuration diagram of the push pin driving unit shown in FIG.

A light guide 192 for injecting lamp light from a light source device and an air supply nozzle 193 for receiving air sent from a pump incorporated in the light source device are attached to the tip of the light guide connector 191 of the endoscope. Around the light guide connector 191, a metal contact pin 194 or the like having the other end connected to a signal line is attached.

In the light source device 190, the light guide receiving block 1 for inserting the light guide connector 191 therein.
95 is fixed to the light source device chassis, and the light guide receiving block 195 facing the contact pin 194 arranged on the light guide connector 191 is made of a spring metal plate connected to the signal line 210 at the other end. The contact leaf spring 196 is fixed.

A comparator 211 for detecting the voltage level of the signal is connected to the signal line 196. The contact leaf spring 196 is provided with a push pin 198 that pushes the contact leaf spring 196 toward the contact pin 194 on the endoscope side, and the other end of the push pin 198 is the push pin driving unit 1
97, and the other end of the push pin driving unit 197 is connected to the control circuit 215.
Is connected to the comparator 211.

The control circuit 215 is also connected to the scope detection section 161 for detecting whether the light guide connector 191 is inserted in the light source device or not.

As shown in FIG. 32, the push-out pin driving section 197 is provided with a rack 214 below the push-out pin 198, and a pinion gear 213 attached to the motor 212 is screwed into the rack 214.
The other end of is connected to the control circuit 215. The scope detection unit 161 has the same configuration as that shown in FIG.

Next, the operation will be described. When the light guide connector 191 is inserted and attached to the light source device 190, the light guide 192 pushes the lower end of the light shielding plate 166 of the scope detection unit 161, the light shielding plate 166 is removed from between the legs 163 and 164, and the light The guide connector 191 is the light source device 19
It is detected that it is inserted into 0, and the detected signal is sent to the control circuit 215.

Normally, the contact leaf spring 196 and the contact pin 19 are used.
Reference numeral 4 is in contact with the contact leaf spring 196 due to its spring property and is electrically conductive. However, the contact leaf spring 196 is deteriorated in its spring property over time, and an oxide film is formed on the contact pin 194 over time. When the electrical conduction is lowered due to such reasons, the comparator 211 detects the voltage change of the signal line 210 connected to the contact leaf spring 196 and sends a signal to the control circuit 215.

The detailed structure detected by the comparator 211 is such that VL and VH are set in the comparator 211 with the upper and lower limits of the normal voltage of the signal line 210 as reference voltages.
Input signal V from the signal line 210 to the comparator 211
When IN is VL≤VIN≤VH, the output signal VOUT from the comparator 211 outputs H, and when other than VL≤VIN≤VH, VOUT outputs L.

When the control circuit 215 receives the signal of L from the comparator 211, it drives the motor 212, and the push pin 198 is pushed through the pinion gear 213 so that VIN is VL≤VL.
Push it out until VIN ≤ VH. Here, the control circuit 215
Sends a signal for driving the push-out pin 198 only when the scope detector 161 receives the signal that the light guide connector 161 is inserted into the light source device 190.

In this embodiment, the upper limit and the lower limit of the voltage are set to detect the decrease in the electrical conduction. However, it may be judged that the electrical conduction is reduced when the voltage becomes the specified value or less. According to this connector structure, the contact leaf spring 196 and the contact pin 194 are provided.
When the electrical continuity is lost, the electrical continuity is restored by pressing the contact leaf spring 196 against the contact pin 194 with the pushing pin 198.

Therefore, even when the electrical discontinuity is due to the oxide film, if the contact pressure between the contact leaf spring 196 and the contact pin 194 is increased, the film is broken and the electrical continuity is secured. Further, since the spring pressure of the contact leaf spring is not high when the light guide connector 191 is attached or detached, the amount of attachment and detachment is reduced.

By the way, for example, the light source device 190 shown in FIG.
The handle portion of the peripheral device for endoscopes and the like has the following structure.

FIG. 33 is a perspective view of the handle mounting portion of the peripheral device for an endoscope, FIG. 34 is a front sectional view taken in the direction of arrow C, and FIG. 35 is a top sectional view taken in the direction of arrow D of FIG. A plurality of projections 224 having slits 223 slightly larger than the thickness of the housing exterior 222 and the mounting surface of the grip 221 are formed on the surface of the resin or metal grip or side foot 221 that contacts the housing exterior 222. A single or a plurality of spring members 225 protruding vertically are provided.

In addition, the handle 22 is provided on the housing exterior 222.
1 is fitted into the slit 223 of the projection 224, and the exterior 222 is fitted into the slit 223.
And a hole 227 into which the spring material 225 is fitted. The holes 226 and 227 may be one common hole.

In this structure, by fitting the projection 224 of the handle 221 into the hole 226 of the housing 222 and sliding it, the handle 221 is fixed to the housing 222 in the front-rear and up-down directions, and at the same time, the housing exterior. 222
The spring member 225 of the handle 221 fits into the hole 227 of the handle 221 so that the handle 221 is fixed to the housing 222 in the left-right direction.

With such a structure, the handle can be easily and securely handled without using the tool without considering the interference between the tool and the case exterior due to the miniaturization of the case and the use of special tools. Can be attached to.

A second embodiment of the handle attaching portion is shown in FIG.
The structure is the same as that of the first embodiment shown in FIG.
Is made of metal and has a sharp convex portion 228 that interferes with the outer or inner surface of the housing exterior 222.
21.

With such a structure, the handle projection 2
28 is embedded in the housing exterior 222, and the same potential can be applied when the handle 221 and the housing exterior 222 are electrically connected.

[0109]

As described above, according to the endoscope system of the present invention, it is possible to reliably prevent the contact failure of the contact portion due to the backlash of the endoscope and the distortion of the connector with a simple structure. It will be possible.

[Brief description of drawings]

FIG. 1 is a configuration diagram around a light source device in an endoscope system according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a configuration diagram in the vicinity of a light source device in an endoscope system according to a second embodiment of the present invention.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is an explanatory diagram showing a connector structure according to a first modification of the second embodiment.

FIG. 6 is a connection diagram showing that the opposing contacts of the connector are connected.

FIG. 7 is a connection diagram showing that the opposite contacts of the plug are connected.

FIG. 8 is an explanatory diagram showing a state in which a plug is connected to the connector.

9 is an explanatory view of a connected state when a force acts on the plug in the state of FIG. 8.

FIG. 10 is an explanatory diagram showing a connector structure according to a second modification of the second embodiment.

FIG. 11 is a connection diagram showing that the opposing contacts of the connector are connected.

FIG. 12 is a connection diagram showing that the opposite contacts of the plug are connected.

FIG. 13 is an explanatory diagram showing a state in which a plug is connected to the connector.

FIG. 14 is an explanatory diagram showing a connector structure according to a third modification of the second embodiment.

FIG. 15 is an explanatory diagram showing a state in which a plug is connected to the connector.

16 is an explanatory view of a connected state when a force acts on the plug in the state of FIG.

FIG. 17 is an explanatory view of a connector structure that secures both contacts by interlocking with the contact operation of the contact portion.

FIG. 18 is a perspective view showing the outer shape of a connector portion.

FIG. 19 is a perspective view showing the outer shape of a socket portion.

FIG. 20 is an explanatory diagram of a second embodiment of the connector structure having the same function as in FIG.

FIG. 21 is an operation explanatory view of a state where the connector portion is attached to the socket portion.

FIG. 22 is an explanatory view of the third embodiment of the connector structure having the same function as in FIG.

FIG. 23 is a perspective view showing the outer shape of a socket portion.

FIG. 24 is an explanatory view showing the configuration of a fourth embodiment of the connector structure having the same function as in FIG.

FIG. 25 is an enlarged view of the contact portion in FIG. 24.

FIG. 26 is an explanatory view showing the configuration of a fifth embodiment of the connector structure having the same function as in FIG.

FIG. 27 is an explanatory diagram of the operation in the state where the connector portion is attached to the socket portion.

FIG. 28 is a first connector structure having a scope detector.
The block diagram of an Example.

FIG. 29 is an explanatory diagram showing a configuration of a scope detection unit.

FIG. 30 is a second connector structure having a scope detector.
The block diagram of an Example.

FIG. 31 is a third connector structure having a scope detector.
The block diagram of an Example.

FIG. 32 is an explanatory diagram showing a configuration of an extrusion pin driving unit.

FIG. 33 is a perspective view showing a structure of a handle portion of the endoscope peripheral device.

34 is a front sectional view of FIG. 33.

FIG. 35 is a cross-sectional top view from the direction of the arrow D in FIG. 33.

FIG. 36 is a cross-sectional view of the essential parts of the second embodiment of FIG. 33.

FIG. 37 is a cross-sectional view showing a state in which a light guide connector is connected to a connector receiver in a conventional endoscope system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Endoscope system 2 ... Endoscope 4 ... Light guide connector 5 ... Endoscope light source device 6 ... Insertion part 7 ... Operating part 8 ... Eyepiece part 9 ... Light guide cable 11 ... Light guide 13 ... Signal line 14 ... Optical system 15 ... Spring contact 16 ... Connector receiving 17 ... Groove 18 ... Convex or concave 19 ... Contact 21 ... Contact unit 22 ... Concave or convex

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Isamu Karasawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Inventor Anichi Kogen 2-43 Hatagaya, Shibuya-ku, Tokyo No. 2 Olympus Optical Co., Ltd. (72) Inventor Akio Uchiyama 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. 2 Olympus Optical Co., Ltd. (72) Masanobu Koitabashi 2-43 Hatagaya, Shibuya-ku, Tokyo No. 2 Olympus Optical Co., Ltd.

Claims (1)

[Claims] 1. An endoscope having an optical system that collects light from a lamp that sends illumination light to an endoscope and a connector that has contacts for sending various signals and power to the endoscope and that has a connector for connecting the endoscope. A light source device for a mirror, a light guide that receives the illumination light, and a light guide connector that is in contact with a contact of the light source device and has a contact for transmitting an electric signal, and that is connected to a connector of the light source device are provided. In the endoscope system having the endoscope, the contact portion of the endoscope or the light source device for the endoscope is an integral unit, and the unit is arranged in the vertical and horizontal directions with respect to the light guide connector or the connector. An endoscope system characterized by being movably provided.