JP3504517B2 - Endoscope insertion shape detection device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an endoscope insertion shape detecting device for detecting an endoscope insertion shape.

[0002]

2. Description of the Related Art In a 3D imaging system,
Insert the 3D imaging probe into the forceps channel of the scope, like a treatment tool used for endoscopy, and perform 3D
There are types that perform imaging.

[0003]

However, since there are various kinds of scopes such as the total length and the length of the curved portion, correct 3D imaging is not possible unless a 3D imaging probe that is well suited for each scope is used. It is impossible. This selection of the 3D imaging probe for each examination was troublesome.

(Object of the Invention) The present invention has been made in view of the above-mentioned points, and it is possible to easily discriminate a combination of endoscope insertion shape detection probes suitable for various kinds of scopes. It is an object of the present invention to provide an endoscope insertion shape detection device that can be used.

[0005]

An endoscope insertion shape detecting apparatus according to the present invention comprises a scope connected to a light source apparatus and a video processor to provide an endoscopic image, and connected to the endoscope insertion shape detecting processor. In an endoscope insertion shape detecting device including an endoscope insertion shape detecting probe for displaying an endoscope insertion shape, a scope detecting means is provided on the video processor side, and an endoscope insertion shape is detected on the endoscope inserting shape detection processor side. A probe detection means, and means for collating and discriminating the scope detection result and the endoscope insertion shape detection probe detection result.

Then, when the scope and the endoscope insertion shape detecting probe are connected to the video processor and the endoscope insertion shape detecting processor, respectively, the validity of the combination of the scope and the endoscope insertion shape detecting probe is judged. , For example, the user is notified of the information.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 relate to a configuration example related to the present invention, FIG. 1 shows a configuration of a 3D imaging system, FIG. 2 shows an endoscope, and FIGS. 3 (A), (B) and (). C) shows a sectional structure of the insertion portion, the universal cord, and the flexible tube portion. The purpose of this example is to provide an endoscope in which the 3D imaging probe can be easily replaced.

As shown in FIG. 1, a 3D imaging system 1 includes an endoscope 3A equipped with a 3D imaging probe or an endoscope insertion shape detection probe (hereinafter, simply referred to as a probe) 2, and the endoscope 3A. A light source device 4 that is connected and supplies illumination light, a video processor 5 that performs signal processing for the image pickup element of the endoscope 3, and a monitor 6 that displays a video signal output from the video processor 5.
A rear end of the probe 2 is connected to perform a 3D imaging process, a 3D imaging device 7, a coil unit 8 connected to the 3D imaging device 7, and a monitor 9 for displaying a video signal output from the 3D imaging device 7.
Composed of and.

As shown in FIGS. 1 and 2, the endoscope 3A has an elongated insertion portion 10 to be inserted into a body cavity, and this insertion portion 10
The light guide 14 has an operating portion 11 provided at the rear end and a universal cord 12 extending from the operating portion 11, and the end portion of the universal cord 12 projects from the front end surface of the general connector 13. The base is removable from the light source device 4.

The insertion portion 10 has a hard tip portion 15 and a bendable bending portion 16 provided adjacent to the tip portion 15.
And a long flexible portion 17 extending from the bending portion 16 to the front end of the operating portion 11. By operating a bending knob 18 provided on the operating portion 11 as shown in FIG. Can be curved.

A forceps channel insertion opening 19 for inserting a treatment tool is provided near the front end of the operation section 11, and a treatment tool such as a biopsy forceps (not shown) can be inserted from the forceps channel insertion opening 19. The treatment tool inserted through the forceps channel insertion port 19 is the forceps channel insertion port 1
A biopsy procedure or the like can be performed by projecting from the distal end opening through the channel 20 (see FIG. 1) inside the tube 9. As shown in FIG. 1, the forceps channel insertion port 19 communicates with the channel 20 and also with the suction conduit 21 extending toward the operating portion 11.

An electric connector portion 22 is provided on the side of the general connector 13, and the electric connector portion 22 is detachably connected to the video processor 5 via a signal cable 23.

Further, from this general connector 13 to the endoscope 3
The probe 2 inserted in A is inserted in the flexible tube portion 25 connected to the general connector 13. The probe connector 26 provided at the rear end of the flexible tube portion 25 is detachably connected to the 3D imaging apparatus 7. The probe connector 2
6 and the flexible tube portion 25 are attachable / detachable.

As shown in FIG. 1, a lamp 27 for generating light for illumination is provided inside the light source device 4 to which the base of the light guide 14 is connected, and the light from this lamp 27 is condensed by a condenser lens 28. The light is collected and supplied to the light guide 14. This illumination light is universal code 1
2. The light is transmitted by the light guide 14 inserted through the insertion portion 10 and is emitted forward from the front end surface fixed to the illumination window of the front end portion 15 to illuminate a subject such as a diseased part. An objective lens 29 is attached to an observation window provided adjacent to the illumination window to form an image at its image forming position.

A CCD 31, for example, is arranged as a solid-state image sensor at this image forming position, and photoelectric conversion is performed by this CCD 31. The CCD 31 is detachably connected to the video processor 5 via a cable 32 inserted through the insertion portion 10 and the like and a signal cable 23 connected to the general connector 13.

A CCD drive circuit 34 is provided in the video processor 5, and a CC from the CCD drive circuit 34 is provided.
When the D drive signal is applied to the CCD 31, the CC
The signal charge photoelectrically converted by D31 is read out, amplified by the preamplifier 35 in the video processor 5, and then input to the signal processing circuit 36 to generate a standard video signal,
This video signal is output to the monitor 6. An endoscopic image of the affected area or the like captured by the CCD 31 is displayed on the display surface of the monitor 6 to which the video signal is input.

The endoscope 3A of this example is provided with a hollow tube 38 forming a dedicated insertion passage through which the probe 2 is inserted. That is, as shown in FIGS. 3A, 3B, and 3C, the tube 38 is inserted into the insertion portion 10, the universal cord 12, and the flexible tube portion 25.
The probe 2 is inserted in the unit 8. The tip of the tube 38 is fixed to the tip portion 15 of the insertion portion 10 by press fitting or the like.

In this example, the flexible tube portion 25 is formed of, for example, a tube having an inner diameter larger than the outer diameter of the tube 38, and the tube 38 is inserted inside the tube. Further, the inner diameter of the tube 38 is slightly larger than the outer diameter of the probe 2, so that the work of inserting the probe 2 inserted into the tube 38 to the outside can be easily performed and the work of inserting the new probe 2 is performed. Is also relatively easy to do.

In other words, in the endoscope 3A of this example, the tube 38 is inserted into the endoscope main body portion where the probe 2 is not provided, and a dedicated insertion passage (introduction passage) for inserting the probe 2 is formed. An endoscope 3A that can detect the insertion shape by inserting the probe 2 is configured.

Further, in this example, the cross-sectional shape of the hollow portion of the tube 38 is similar to the cross-sectional shape of the probe 2 and larger than the cross-section of the probe 2, so that the probe 2 can be easily inserted and removed (removed) and replaced easily. It is characterized by forming an insertion / removal mechanism (detachment mechanism). This tube 38
In order to maintain the insertion portion 10 which is thin and flexible, it is possible to secure a thin wall and flexibility, and to secure an insertion passage that facilitates insertion of a new probe 2 for replacement. It is desirable to use a member having an elastic force that returns to a circular cross section. Alternatively, it may have a certain degree of hardness so as to maintain a circular cross section.

When the tube 38 is made of synthetic resin or the like, if the material is thin and the elastic force required is insufficient, the elastic force for returning to the circular cross section is increased. For example, a thin metal coil may be embedded inside the thin film of the tube 38.

As shown in FIG. 3, in the insertion portion 10 and the universal cord 12, in addition to the probe 2 inserted in the tube 38, a channel 20 (suction) through which a treatment tool such as biopsy forceps can be inserted. The conduit 21), the cable 32 connected to the CCD 31, and the light guide 14 are inserted. In addition, an air / water supply channel (not shown) and the like are inserted through the insertion portion 10 and the universal cord 12.

A plurality of source coils 39 are provided at a fixed interval or the like in a portion of the probe 2 arranged in the insertion portion 10 to be inserted into the body cavity, and each source coil 39 is connected to a plurality of signal lines 40. The signal line 40 reaches the probe connector 26.

3 to which this probe connector 26 is connected
The D imaging device 7 is provided with a coil drive circuit 41, and this coil drive circuit 41 applies an AC drive signal to each source coil 39 via the signal line 40 to generate a magnetic field around it. The magnetic field is detected by a plurality of sense coils 42 in the coil unit 8 arranged at a known position, and the 3D imaging device 7 is detected via the signal line 43.
After being amplified by the preamplifier 44 in the signal processing circuit 45
Is input to the probe 2 and the position of the source coil 39 in the probe 2 is detected.

The output signal of the signal processing circuit 45 is input to the display control circuit 46, and the display control circuit 46 stereoscopically displays the shape of the insertion portion 10 through which the plurality of source coils 39 are inserted. That is, the 3D display processing is performed, the generated 3D display video signal is output to the monitor 9, and the shape of the insertion portion 10 is pseudo-3D displayed on the display surface of the monitor 9. The front end of the flexible tube portion 25 is watertightly fixed to the general connector 13 by a fixed cover 47 on the side of the general connector 13.

Next, the operation of this example will be described. By setting the connection state as shown in FIG. 1, it is possible to set a state in which an endoscopic examination is performed, and even when the insertion portion 10 is inserted into the body cavity of the patient, the probe 2 is attached to the endoscope 3A. Since it is provided, the shape of the insertion portion 10 can be displayed on the monitor 9 by 3D imaging by detecting the position of the source coil 39 in the probe 2.

Therefore, the operator can see the 3D image displayed on the monitor 9.
By referring to the imaging display, insertion into the body cavity or the like can be performed smoothly. And by repeated use,
When the probe 2 needs to be replaced, remove the probe connector 26 from the flexible tube portion 25 (and remove the fixed cover 47 fixed with screws etc.), and pull out the probe 2 through the tube 38. You can

On the contrary, when the repaired or new probe 2 is set on the endoscope 3A, on the contrary, the probe 2 is inserted into the flexible tube portion 25 from its distal end side, and the flexible tube portion 2 is inserted.
The probe 2 is pushed into the tube 38.
Bring the tip to the endoscope tip portion 15.

In this case, the probe 2 can be smoothly inserted into the insertion portion 10 through the inside of the universal cord and the operation portion 11 using the hollow portion of the tube 38 having a hollow cross section larger than the cross section of the probe 2 as a guide. it can.

When the old probe 2 is removed, the endoscope 3A
The inner tube 38 is compressed by other built-in objects, so that the cross-sectional shape of the hollow portion of the tube 38 is changed to an elliptical shape (from the same circular cross-sectional shape as that of the probe 2),
It may become narrower, but by applying a force to spread it with the tip of the probe 2 inserted inside,
Due to this force and the elastic force of the tube 38, the circular cross section is restored, and the probe 2 can be inserted smoothly.

Then, the tip of the probe 2 arrives until it coincides with the tip surface of the tip portion 15. And the fixed cover 47
By fixing and connecting the relay cable portion 25 and the connector 26, the replacement work can be completed.

This example has the following effects. Since the number of man-hours required for exchanging the probe 2 can be greatly reduced, the time required for repair can be shortened, the work can be facilitated, and therefore the repair cost can be reduced.

In this example, as shown in FIG. 3C, the tube 38 is also inserted in the flexible tube portion 25, but as a modification, the front end portion of the flexible tube 25 is shown. Only one may be connected to the tube 38. Also in this case, when replacement is necessary, the old probe 2 is pulled out, and then the new probe 2 is attached to the flexible tube portion 25.
It can be inserted through the inside and further inserted through the tube 38 facing the front end into the inside of the endoscope, and has substantially the same effect as the configuration example shown in FIGS.

Next, a configuration example related to the present invention will be described with reference to FIGS. FIG. 4 shows the endoscope, FIGS. 5 and 6 show the peripheral portion of the relay connector, and FIG. 7 shows the insertion means formed in the insertion portion in the modification. The purpose of this example is the same as the configuration example shown in FIGS.

The endoscope 3B shown in FIG. 4 is the endoscope 3A shown in FIG.
Uses a probe 50 having a structure in which the probe main body 49 portion provided in the insertion portion 10 can be easily replaced. Therefore, different parts will be described.

In this endoscope 3B, a relay connector section 51 is provided on the side of the front end of the operation section adjacent to the break-prevention section at the rear end (base end) of the insertion section 10 inserted into the body cavity of a patient or the like. The probe main body 49 inserted into the insertion portion 10.
The rear end is detachably connected to one end of the relay cable 52 by the relay connector portion 51. The relay cable 52 is inserted through the operation unit 11 and the universal cord 12, extends from the general connector 13 to the outside, and the connector 26 at the other end is detachably connected to the 3D imaging apparatus 7.

That is, the probe 50 is used in this endoscope 3B.
Is detachably connected to the probe main body 49 by the connector portion 51 and the probe main body 49 inserted in the insertion portion 10,
A part of the probe connector is inserted into the operation part 11 and the universal cord 12 and includes a relay cable 52 extending from the general connector 13 to the outside. A probe connector that is attachable / detachable to the rear end of the relay cable 52. 26
Is attached.

5 and 6 show the detailed structure of the relay connector section 51. As shown in FIG. 5, the relay connector portion 51 is covered with a waterproof cover 53.
Is slidable in the direction indicated by arrow 54. Inside the waterproof cover 53, as shown in FIG.
9 and the connector 56 at the front end of the relay cable 52 that is detachably connected to the connector 55.
And are arranged.

A watertight seal member is attached to, for example, the inner surface of the waterproof cover 53. As shown in FIG. 5, when the connector is moved so as to cover the connectors 55 and 56, the portion around the inner surface is in close contact with the prevention cover. The inside of 53 is kept watertight.

Although not shown in the insertion portion 10 (in FIGS. 4, 5, and 6), as shown in FIG.
Has been inserted. The rear end of the tube 38 is the operation unit 1
It is exposed inside the waterproof cover 53 near the front end of No. 1.

The probe main body 49 can be easily replaced. The relay cable 52 side may also be inserted into the tube 38 in the same manner. Alternatively, since the relay cable 52 side can be used for a long time before being replaced, it may have a structure in which it is not inserted into the tube 38.

Next, the operation of this example will be described. Also in this example, the insertion shape can be displayed by the endoscope 3B similarly to the configuration example shown in FIGS. By repeatedly inserting and removing the insertion portion 10 into and from the bent body cavity, it may be necessary to replace the portion of the probe 50 inserted into the insertion portion 10, that is, the portion belonging to the probe main body 49. .

In this case, the waterproof cover 53 of the relay connector section 51 is opened as shown in FIG.
After exposing 5 and 56 and pulling them apart, the relay connector 55 of the probe main body 49 is pulled to pull it out of the insertion portion 10. Also in this case, since the probe main body 49 is inserted into the hollow tube 38 having a cross-sectional shape larger than that of the probe main body 49, the probe main body 49 can be easily pulled out.

Then, an alternative new probe 50 is
By performing an operation of inserting (pushing in) from the end portion of the tube 38 exposed from the relay connector portion 51 into the waterproof cover 53, a force for expanding the tube 38 by using the tube 38 as a guide is applied, and at the same time, the tube 3
The probe main body 49 can be easily inserted into the insertion portion 10 by returning to a circular cross section (same as the cross sectional shape of the probe main body 49) by the elastic force (returning force) of 8. The connection is completed by inserting the probe main body 49 until the tip reaches the tip of the endoscope 3B, connecting the connectors 55 and 56, and closing the waterproof cover 53.

According to the present example, there is an effect that the probe 50 can be replaced easily and in a short time, almost like the configuration examples shown in FIGS. Further, in this example, the insertion portion 10
Since the probe main body 49 passing through the inside of the insertion portion 10 whose frequency of replacement is relatively high due to the bending of the probe can be independently replaced, the number of steps required for replacement can be further reduced. In addition, the repair cost is not for the entire probe but for a part thereof, which can be reduced.

In this example as well, a tube 38 for facilitating attachment / detachment of the probe 2 is provided in the insertion section 10 as in the configuration example shown in FIGS.
For example, a coil may be adopted, or the probe insertion passage 59 may be formed by utilizing the structure 58 inside the insertion portion as shown in FIG. 7. As the component 58 inside the insertion portion, for example, a flex or the like provided in the insertion portion 10 may be raised inside to form a probe insertion passage 59 shown by a dotted line.

In other words, it is only necessary to secure the passage of the probe 50, and therefore it is not limited to the tube 38, but a coil or the like can be used. In the case of the component 58 inside the insertion portion as shown in FIG. 7, the component 58
Can be effectively used.

As another modified example of the tube 38 forming the insertion passage of the probe 2 or the probe 50 (probe main body 49) in the configuration example shown in FIGS. 1 to 7, it may be formed of, for example, a shape memory member.

For example, a coil-shaped member made of, for example, a shape memory alloy is embedded inside the film of the flexible tube and both ends thereof are exposed inside the connector 13 or the waterproof cover 53. When the probe 2 or the probe main body 49 is replaced, a current is applied to both ends of the probe 2 or the probe main body 49 to heat the probe 2 or the probe main body 49 to transform the shape-memory alloy formed into the coil-shaped member into a phase on the high temperature side. You may make it return to the circular cross section which shape-memorized.

Further, the phase transformation is not limited to the flow of an electric current to heat the phase transformation, but it may be put in a chamber having a temperature higher than the phase transformation temperature to restore the circular cross section. Further, setting to the phase on the high temperature side is not limited to returning to the circular cross section pre-stored in shape, but setting to the phase on the low temperature side restores to the circular cross section stored in advance. Anything is fine.

Next, a configuration example related to the present invention will be described with reference to FIGS. 8 and 9. The purpose of this example is always to provide an endoscope that can be used with the correct endoscope and probe combination. FIG. 8 shows an endoscope main body 61 and an endoscope 63 that inserts a probe 62 into the forceps channel insertion port 19 to perform endoscope insertion shape imaging.

In this example, for example, the forceps channel insertion port 19
The marking 64 is provided on the marking 64.
Has a color that can be clearly distinguished from the color of the operation unit 11.

The probe 62 inserted into the forceps channel insertion port 19 and used includes a probe main body 65 and a relay cable 67 connected to a relay connector section 66 at the rear end of the probe main body 65. The probe 62 used by being inserted into the port 19 has, for example, the same marking 68 as the marking 64 on the relay connector portion 66.

When the operator inserts the probe 62 into the forceps channel insertion opening 19 of the endoscope main body 61 and uses it, he or she selects the probe 62 having the same marking 68 as the marking 64 without error. So that it can be used.

That is, the endoscope main body 61 and the probe 62 that can be used in combination with the endoscope main body 61 are provided with identification markings 64 and 68 that are different from the markings of the probe that cannot be used in combination.

A probe connector not shown in FIG. 8 is provided at the rear end of the relay cable 67 and is detachably connected to the 3D imaging device.

In FIG. 8, it is possible to discriminate that the endoscope main body 61 and the probe 62 are paired by the linear marking of the same color, but the present invention is not limited to this. For example, as shown in FIG. 9, the color of the marking 64 provided on the endoscope main body 61 and the color 69 of the probe main body 65 of the probe 62 may be matched. Alternatively, as shown in FIG. 10, the markings 70a and 70b having the same character may be used, or the same numeral may be written or the same shape of protrusions and depressions may be provided.

Next, the operation of this example will be described. When preparing a probe for performing 3D imaging, identification information such as the marking 64 of the endoscope body 61 and the probe 62 are prepared.
If it is confirmed that the identification information such as the marking 68 of the same is the same, the probe 62 that can be used for the endoscope body 61
It is easy to see if

This example has the following effects. During the endoscopic examination, the probe 62 that can be used in combination with the endoscope main body 61 used for the endoscopic examination is less likely to be mistaken, and the examination efficiency is improved. Further, if the probe 62 is inserted into the forceps channel, it has not been known in the past if its length matches the insertion portion 10 of the endoscope main body 61, but according to the present embodiment, the marking 68 or the like is provided. You can check whether the combination is correct by
Perform imaging without error.

Next, an embodiment of the present invention will be described with reference to FIGS.
2 will be described. An object of the present embodiment is to provide an endoscope that can be always used in combination with the correct endoscope and probe. FIG. 11 shows the endoscope body 7
3D together with the endoscope 73 that inserts the probe 72 into the forceps channel of No. 1 to perform imaging of the endoscope insertion shape.
An imaging system 74 is shown.

The endoscope body 71 includes an insertion portion 75 and an operation portion 7.
6, universal cord 77, and scope connector 7
8 and the scope connector 78 is connected to the light source device 79. The scope connector 78 is connected to the video processor 82 via a cable 81 provided with the scope connector 80.

The probe main body 83 of the probe 72 is inserted using the forceps channel insertion opening 84 of the endoscope main body 71. The connector portion 86a of the relay cable 86 is detachably connected to the relay connector portion 85 provided at the rear end of the probe body 83, and the probe connector 87 at the rear end of the relay cable 86 is connected to the 3D imaging processor 88.

The video processor 82 is connected to the monitor 6 for displaying an endoscopic image, and the 3D imaging processor 88 is connected to the monitor 9 for displaying a 3D imaging image.

The 3D imaging image of the endoscope insertion part displayed on the monitor 9 is displayed so that the ratio of the diameter and the loop diameter is changed on the screen with respect to the insertion part 75 of the real object so that there is no discomfort. There is. Further, in order to deal with various endoscopes, the endoscope ID (scope ID) is read, and the diameter of the 3D imaging image of the scope on the monitor 9 and the loop diameter are determined accordingly.

FIG. 12 shows a mutual connection relationship between the endoscope 73, the video processor 82, and the 3D imaging processor 88. In the present embodiment, the endoscope body 71 is provided with an endoscope identification means (scope identification means) 91 for identifying the endoscope body 71, and the video processor 82 detects the identification means 91. A scope detection circuit 92 for (identification) is provided, and the information identified by the scope detection circuit 92 is transmitted via the communication control circuit 93 to the combination determination circuit 94 in the 3D imaging processor 88.
I am sending it to.

Further, the probe 72 also has the probe 72.
Probe identifying means 95 for identifying
The probe identification means 95 is identified by the probe detection circuit 96 provided in the 3D imaging processor 88, and the identification information is sent to the combination determination circuit 94.

The combination discriminating circuit 94 has a combination information storing means composed of an EEPROM or the like in which correct combination information is written in advance, and includes the scope information detected by the scope detection circuit 92 and the scope information detected by the probe detection circuit 96. Determines whether or not corresponds to the correct combination information read from the combination information storage means.

If it is determined that the combination is valid, 3D imaging is performed as usual, but if it is determined that the combination is not valid, a signal indicating that the combination is not valid is output to the display control circuit 46, and 3D imaging is performed. Do not image. In this case, a message to the effect that the combination is not valid is displayed on the observation screen.

Since the other configurations of the video processor 82 and the 3D imaging processor 88 are the same as those described for the video processor 5 and the imaging apparatus 7 in FIG. 1, the same reference numerals are given and the description thereof is omitted. .

Next, the operation of this embodiment will be described. When it is possible to display the endoscopic shape together with the endoscopy,
Identification means 91 and 95 provided in the endoscope body 71 and the probe 72, respectively, and detection circuits 92 and 9 provided in the video processor 82 and the 3D imaging processor 88, respectively.
It is read in 6 and sent to the combination discriminating circuit 94.

The combination discriminating circuit 94 judges whether the combination of the two is proper and, as a result, if the combination is proper, 3D imaging can be performed as usual. on the other hand,
In the case of an incorrect combination, it is determined to be invalid, 3D imaging is not performed, and an invalid message is displayed on the screen of the monitor 9. In addition, an invalid message may be displayed and a warning sound may be emitted, or only the warning sound may be used to notify that the message is invalid.

As the means for identifying the scope or the probe, known means can be used. For example, among a plurality of pins provided in the connector portion, for example, a combination of conductive pins can be selected depending on the type of the scope or the probe. Prepare a different one and judge whether the scope or probe is the correct combination by detecting the pin that conducts when connected, or if the scope or probe is provided with a ROM and the information is read out when connected You may judge whether a scope or a probe is a correct combination.

The present embodiment has the following effects. According to the present embodiment, since the correct scope and probe combination is always used when 3D imaging is performed, correct 3D imaging is always performed, so that the accuracy of displaying the insertion shape is improved, and the insertion shape is improved. Operations and the like can be performed more smoothly.

Further, since the erroneous connection is notified, even if the displayed 3D imaging image is suspicious, it is possible to immediately determine whether it is due to a failure or due to an erroneous connection, so that the inspection can proceed smoothly.

Next, a configuration example related to the present invention will be described with reference to FIG. The purpose of this example is to provide a means for holding a connector for supplying an electric signal to a body of an endoscope for a probe for performing 3D imaging of the endoscope which is inserted into a forceps channel of the endoscope and used. By doing so, it is possible to prevent buckling of the probe and disconnection of the signal line.

An endoscope 101 for 3D imaging of this example shown in FIG. 13 is, for example, an endoscope 73 shown in FIG. 11 in which an elastic member 102 for fixing a relay connector 85 to the endoscope body 71 is provided. Is.

The elastic member 102 has the shape shown in FIG. 14, and has a ring-shaped coupling groove (engagement groove) of the relay connector 85.
103 and the operation unit 7 of the endoscope body 71.
It has a shape in which two arcs on the side to be fitted in 6 are back to back.

The relay connector 85 is provided with a ring-shaped coupling groove 103 into which the smaller arc portion is fitted and fixed. By fitting the smaller arc portion of the elastic member 102 into this coupling groove 103, it can be fixed. , It can also be removed by its elastic force.

It should be noted that, although the two arcs have a substantially H shape here, it may have a shape in which two circles are combined. In this case, the elastic member 102 is attached from the tip of the probe 72 and the insertion portion 75 of the endoscope body 71, respectively. Others are the same as those of the endoscope 73 shown in FIG. 11, the same components are designated by the same reference numerals, and the description thereof will be omitted.

The relay connector 85 is attached to the elastic member 102.
15, the probe main body 106 shown in FIG. 15 in which the detachable scope mounting frame 105 is protruded from the operating portion 76.
May be adopted.

Next, the operation of this example will be described. As shown in FIG. 13, when the elastic member 102 is fitted into both the connector 85 and the operation portion 76 of the scope, they are relatively restrained,
The weight of the connector 85 can significantly reduce the mechanical force applied to the probe 72 for performing 3D imaging. The elastic member 102 can also be used by being fitted not to the operation portion 76 but to the universal cord 77 portion. This example has the following effects.

Since the connector 85 and the operating portion 76 of the scope are relatively restrained, the load on the probe 72 for 3D imaging is reduced, and the life of the probe 72 can be extended. Along with this, the repair fee paid by the user is also reduced. Further, when the connector 85 and the elastic member 102 are integrated, it is possible to eliminate the possibility that the elastic member 102 is lost, and it is possible to avoid unnecessary expense.

Next, a configuration example related to the present invention will be described with reference to FIGS. 16 and 17. The purpose of this example is the same as the configuration example shown in FIGS. The endoscope 111 of the present example shown in FIG. 16 corresponds to another configuration example of the endoscope 101 shown in FIG. 13, and the endoscope shown in FIG. 11 is the same as the configuration example shown in FIGS. 13 and 14. In the mirror 73, means for restraining or holding the portion of the probe 72 extending from the insertion opening 84 to the outside is provided to reduce or prevent the influence of the load of the connector portion 85 on the probe 72.

That is, the flange 1 is attached to the relay connector portion 85 extending from the insertion opening 84 of the probe 72 to the outside.
12 is provided, and one end of a ball chain 113 is fixed through a hole provided in the flange 112, and a waterproof cap 114 is attached to the other end of the ball chain 113.

As shown in an enlarged view in FIG. 17, the ball cap mounting portion 115 of the waterproof cap 114 has the other end of the ball chain 113 and the second ball chain 1.
One end of 16 is attached. Ball chain 1
The other end of 16 is attached to the notch 117 of the waterproof cap 114, and when attached to the notch 117, a circle 118 shown by a broken line in the drawing is formed.

The size of the circle 118 is larger than the outer diameter of the universal cord 77. As shown in FIG. 16, the connector 85 is held by inserting the universal cord 77 near the base end thereof to the inside and inserting it. It is possible to prevent the probe 72 coming out of 84 from being bent downward due to the weight of the connector portion 85.

By doing so, it is possible to prevent the probe 72 coming out of the insertion opening 84 from being bent downward due to the weight of the connector portion 85 (a state where the probe 72 is bent downward due to the weight of the connector portion 85). It is possible to effectively prevent the internal signal line from being easily broken.

Next, the operation of this example will be described. FIG. 16 shows a state during the endoscopic examination. Here,
A circular portion 118 formed by attaching the ball chain 113 to the notch 117 of the waterproof cap 114 surrounds the universal cord 77, and due to frictional force between the ball chain 113 and the universal cord 77 or the like. Waterproof cap 114, connector section 8
5, 86a are restrained relative to the universal cord 77.

This example has the following effects. Similar to the configuration examples shown in FIGS. 13 and 14, since the mechanical load applied to the probe 72 that performs 3D imaging is reduced, the life of the probe 72 is extended. Further, according to the present embodiment,
Since the waterproof cap 114 is restrained by the probe 72, the risk of the waterproof cap 114 being lost can be eliminated.

Although not shown, the above-described operation can be performed even if the fixing member is attached to the connector portion 85 and a member combined with the fixing member is attached to the endoscope main body 71.

[Additional Notes] 1. Endoscope insertion including a light source device, a scope connected to a video processor to provide an endoscopic image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display the endoscope insertion shape In the shape detection device, the path of the endoscope insertion shape detection probe built into the scope is exclusively restricted, and the endoscope insertion shape detection device is characterized.

1-1. The endoscope insertion shape detecting device according to attachment 1, wherein a path of the endoscope insertion shape detecting probe is formed by a tube.

1-2. The endoscopic insertion shape detecting device according to attachment 1, wherein a path of the endoscopic insertion shape detecting probe is formed by a structure inside the endoscope.

(Background of Supplementary Note 1 Group) (Prior Art of Supplementary Note 1 Group) Among endoscopic examinations, in colonoscopy, the shape of the endoscope insertion part in the patient's body Need to know (Hereinafter, this shape is referred to as "insertion shape.") This is to prevent perforation of the large intestine during examination or rotation into an unreasonable shape.

(Problem of Supplementary Note 1 Group) By the way, since the entire insertion portion of the endoscope can be bent into a free shape and the distal end thereof has a curved portion, the endoscope 3
If the D-imaging probe is used for repeated inspection, mechanical fatigue requires periodic replacement. However, in the case of an endoscope in which a 3D imaging probe is built in the endoscope, the structure is not easily replaced, and therefore this replacement work requires a great number of man-hours.

For example, even if the exchanged 3D imaging probe can be removed from the inside of the endoscope by pulling it with a force so large that it breaks, if a new 3D imaging probe is inserted, the old The part from which the 3D imaging probe is removed is narrowed by other built-in objects, and the insertion passage of the cross section for inserting a new 3D imaging probe is not secured, so even if you push it in, it will hit other built-in objects etc. Since it cannot be inserted, it is necessary to disassemble and insert it. Therefore, there is a problem that it takes a lot of time and skill to insert it.

(Means and Actions of Supplementary Note 1) In an endoscope in which an endoscope insertion shape detection probe is provided in the endoscope body for detecting the endoscope insertion shape, the endoscope insertion shape detection probe is A dedicated introduction passage to be introduced into the inside of the endoscope main body, and facilitating attachment / detachment of the endoscope insertion shape detection probe to the introduction passage. It is necessary to replace the endoscope insertion shape detection probe by providing an attachment / detachment mechanism such as a tube that has a larger cross-sectional area similar to that of In such a case, the dedicated introduction passage and the attachment / detachment mechanism make it possible to easily replace the endoscope without disassembling it.

2. An endoscope including a light source device, a scope connected to a video processor to provide an endoscope image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display the endoscope insertion shape In the insertion shape detecting device, the endoscope insertion shape detecting probe has a relay connector, and can be divided before and after the relay connector.

2-1. The endoscope insertion shape detecting device according to attachment 2, wherein the relay connector is arranged in the vicinity of the endoscope operation unit.

2-2. The endoscope insertion shape detecting device according to attachments 2 and 2-1, wherein the relay connector is detachable from the outside of the endoscope.

2-3. The endoscope insertion shape detecting device according to attachments 2, 2-1, and 2-2, wherein the relay connector has a waterproof cover.

(Background of Appendix 2 Group) (Prior Art of Appendix 2 Group) Same as the prior art of Appendix 1.

(Problem of Supplementary Note 2) The same as the task of Supplementary Note 1 group.

(Means and Actions of Supplementary Note 2) The 3D imaging probe built in the scope is divided into a probe portion and a cable portion and relayed by a connector, and a scope insertion portion which is relatively mechanically strict in use conditions. The probe part in the can be replaced independently and without disassembling the scope.

3. Endoscope insertion including a light source device, a scope connected to a video processor to provide an endoscopic image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display the endoscope insertion shape In the shape detection device, the scope and the endoscope insertion shape detection probe,
An endoscope insertion shape detecting device, characterized in that visual or tactile identification means is provided, and the identification means is the same in the endoscope and the endoscope insertion shape detection probe.

3-1. In the endoscope insertion shape detection device of Appendix 3, the identification means provided on the endoscope and the endoscope insertion shape detection probe are composed of a pattern provided on the endoscope and a probe outer peripheral surface of the same color as the pattern. An endoscope insertion shape detection device characterized by being present.

3-2. In the endoscope insertion shape detecting device of appendix 3, the identification means provided on the endoscope and the endoscope insertion shape detecting probe are the same color pattern provided on the endoscope and the endoscope insertion shape detecting probe. An endoscope insertion shape detection device characterized by:

3-3. In the endoscope insertion shape detecting device of appendix 3, the identifying means provided on the endoscope and the endoscope insertion shape detecting probe have the same shape as the endoscope and the endoscope insertion shape detecting probe. An endoscope insertion shape detection device characterized by a pattern.

(Background of Appendix 3 Group) (Prior art of Appendix 3 group) Same as [Prior Art] section.

(Problem of Appendix Group 3) Same as [Problems to be solved by the invention].

(Means and Functions of Supplementary Note 3) Same as [Means for Solving the Invention].

4. Endoscope insertion including a light source device, a scope connected to a video processor to provide an endoscopic image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display the endoscope insertion shape In the shape detection device, the video processor side has a scope detection means, and the endoscope insertion shape detection processor side has an endoscope insertion shape detection probe detection means, the scope detection result and the endoscope insertion shape detection probe An endoscope insertion shape detecting device having means for collating and discriminating a detection result.

4-1. In the endoscope insertion shape detecting device of appendix 4, the means for collating and discriminating notifies the operator in the case of a specific combination of a scope and an endoscope insertion shape detecting probe. Mirror insertion shape detector.

4-1-1. In the endoscope insertion shape detecting device according to appendices 4 and 4-1, the means for notifying the operator is by displaying that fact on an observation screen, the endoscope insertion shape detecting device.

4-1-2. Appendix 4, 4-1 and 4-1-1
In the endoscope insertion shape detecting device, the means for notifying the operator is by emitting a voice.

4-2. In the endoscope insertion shape detection device of Appendix 4, the scope detection means and the endoscope insertion shape detection probe detection means are characterized by reading the identification information possessed by the scope and the endoscope insertion shape detection probe. Shape detection device for endoscope insertion.

4-3. In the endoscope insertion shape detection device of Appendix 4, the scope detection means and the endoscope insertion shape detection probe detection means connect the scope and the endoscope insertion shape detection probe to the video processor and the endoscope insertion shape detection processor, respectively. An endoscope insertion shape detecting device, characterized in that the position and the number of contact points that come into contact with each other are determined.

(Background of Appendix 4 Group) (Prior Art of Appendix 4) Same as the prior art of Appendix 3.

(Problem of Appendix 4 Group) The same as the task of Appendix 3 group.

(Means and Action of Supplementary Note 4) Scope and 3
Each D imaging probe has its own identification means, and when connected to a video processor and a 3D imaging processor, the validity of the combination is judged and the information is notified to the user.

5. Endoscope insertion including a light source device, a scope connected to a video processor to provide an endoscopic image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display the endoscope insertion shape In the shape detecting device, the endoscope inserting shape detecting device is provided with means for mutually constraining the scope and the endoscope inserting shape detecting probe.

5-1. In the endoscope insertion shape detecting apparatus of appendix 5, the means for mutually restraining is performed by a holding member that simultaneously holds the scope and the endoscope insertion shape detecting probe, and the endoscope insertion shape detecting apparatus. Or the holding member.

5-1-2. Appendix 5. 5-1. The endoscope insertion shape detecting device or holding member according to 5-1, wherein the holding member is an elastic body,
Alternatively, the holding member.

5-2. Appendix 5. 5-1 and 5-1-2 in the endoscope insertion shape detecting device or the holding member, the holding member is integrally formed with the endoscope insertion shape detecting probe main body. Insertion shape detector,
Alternatively, the holding member.

5-3. In the endoscope insertion shape detection probe of appendix 5, a holding member that holds the cap of the endoscope insertion shape detection probe on the connector of the endoscope insertion shape detection probe is provided, and the holding member is held by the scope. An endoscope insertion shape detecting device characterized by the above.

5-3-1. The endoscope insertion shape detecting device according to attachment 5, wherein the holding member is held by being wound around a scope.

(Background of Supplementary Note 5 Group) (Prior Art of Supplementary Note 5 Group) In the forceps channel of the scope,
In a system of a type that performs 3D imaging by inserting a 3D imaging probe like a treatment tool used for endoscopy, the 3D imaging probe protrudes from the forceps channel, so the connector of the 3D imaging probe is floating in the air. The weight of this connector is 3
There is a possibility that mechanical stress may be applied to the D imaging probe and its life may be shortened.

(Problem of Supplementary Group 5) When inserting the 3D imaging probe into the scope from the forceps channel to perform 3D imaging, the mechanical stress applied to the 3D imaging probe is reduced by the weight of the connector of the 3D imaging probe, Providing a long-life 3D imaging probe or 3D imaging system.

(Means and Actions in Supplementary Note 5) 3D imaging is provided with means for holding each other (constraining relative movement) to the connector of the 3D imaging probe of the type to be inserted into the forceps channel, the scope, or both. The mechanical stress on the 3D imaging probe was reduced due to the free movement of the probe connector relative to the scope.

6. An endoscope insertion shape detection probe for detecting an endoscope insertion shape, and an introduction passage for introducing the endoscope insertion shape detection probe into the endoscope, wherein the introduction passage is the endoscope An endoscopic device having a cross-sectional size and shape that allows attachment and detachment of a mirror insertion shape detection probe.

7. In Appendix 6, the introduction path for introducing the endoscope insertion shape detection probe into the endoscope is made of a hollow tube.

8. An endoscope insertion shape detection probe that is introduced into the endoscope to detect an endoscope insertion shape, and an introduction passage that introduces the endoscope insertion shape detection probe into the endoscope, An endoscope insertion shape detection device, which is connected to an output end of the endoscope insertion shape detection probe and inputs and processes an output of the endoscope insertion shape detection probe, and the endoscope insertion shape detection probe is An endoscope apparatus having a relay connection portion for enabling detachment outside an operation portion of the endoscope.

9. Appendix 8 is the endoscope apparatus, wherein the relay connecting portion has a waterproof cover.

10. An endoscope insertion shape detection probe that is introduced into the endoscope to detect an endoscope insertion shape, and an introduction passage that introduces the endoscope insertion shape detection probe into the endoscope, Connected to the introduction passage, having an introduction port for introducing the endoscope insertion shape detection probe into the endoscope, the endoscope insertion shape detection probe and the identification means of the type of the endoscope An endoscope insertion shape detecting probe and an endoscope device provided on the endoscope.

11. An endoscope, a video processor that is connected to the endoscope, processes an endoscopic image from the endoscope and outputs the endoscopic image to a monitor, and the endoscope for detecting the endoscope insertion shape. An endoscope insertion shape detection probe introduced into the inside of the endoscope, an endoscope insertion shape detection device for detecting an endoscope insertion shape from the endoscope insertion shape detection probe, and the endoscope insertion shape detection probe. The introduction passage to be introduced into the endoscope and the endoscope insertion shape detection probe have a relay connection portion for enabling detachment up to the endoscope insertion shape detection device, and the endoscope A signal means for identifying the type of the endoscope, and a signal means for identifying the type of the endoscope insertion shape detection probe in the endoscope insertion shape detection probe, Identifies the type of endoscope For detecting the type of the endoscope by means of a signal means for detecting the type of the endoscope insertion shape detecting probe for the endoscope insertion shape detecting device and the detection result of the type of the endoscope and An endoscope apparatus having means for collating and discriminating a detection result of a type of an endoscope insertion shape detecting probe.

12. In Supplementary Note 11, the endoscope insertion shape detection device has means for notifying the result of the collation and determination.

13. An endoscope insertion shape detection probe that is introduced into the endoscope to detect the endoscope insertion shape, and a holding member that integrally connects the endoscope insertion shape detection probe and the endoscope. An endoscopic device having:

14. In an endoscope in which an endoscope insertion shape detection probe is provided in the endoscope main body to detect the endoscope insertion shape, the endoscope insertion shape detection probe is exclusively introduced into the endoscope main body. And an attachment / detachment mechanism for facilitating attachment / detachment of the endoscope insertion shape detection probe to the introduction passage.

15. In Supplementary Note 14, the attachment / detachment mechanism has a cross-sectional shape of the introduction passage similar to the cross-sectional shape of the endoscope insertion shape detection probe, has a larger cross-sectional area, and has a characteristic of restoring elastic force to the cross-sectional shape. An endoscope characterized by being formed in.

16. In Appendix 14, the attachment / detachment mechanism heats or cools a member forming the introduction passage to restore the cross-sectional shape of the introduction passage to a larger cross-sectional area similar to the cross-sectional shape of the endoscope insertion shape detection probe. An endoscope characterized by having the following characteristics.

[0142]

As described above, according to the present invention, when the scope and the endoscope insertion shape detecting probe are connected to the video processor and the endoscope insertion shape detecting processor, respectively, the scope and the endoscope insertion shape are detected. The adequacy of the combination with the detection probe can be determined, eg the user can be informed of the information.

[Brief description of drawings]

FIG. 1 is a block diagram of a 3D imaging system related to the present invention.

FIG. 2 is a perspective view showing an endoscope related to the present invention.

3 is a cross-sectional view of the insertion portion, the universal cord and the flexible tube portion of FIG.

FIG. 4 is a perspective view showing an endoscope related to the present invention.

5 is a perspective view showing the vicinity of a relay connector portion provided in the operation portion of FIG.

FIG. 6 is a perspective view showing the vicinity of a relay connector section with a waterproof cover opened.

FIG. 7 is an explanatory view of a state in which a probe insertion passage is formed by a component inside the insertion portion.

FIG. 8 is a perspective view showing a main part of an endoscope related to the present invention.

FIG. 9 is a diagram showing a case where identification information different from that of FIG. 8 is formed.

FIG. 10 is a diagram showing a case in which other identification information is formed.

FIG. 11 is a configuration diagram of a 3D imaging system showing an embodiment of the present invention.

12 is a block diagram showing the internal configuration of FIG.

FIG. 13 is a perspective view showing a main part of an endoscope related to the present invention.

FIG. 14 is an enlarged perspective view showing the shape of an elastic member.

FIG. 15 is a perspective view showing a probe body integrally provided with an elastic member.

FIG. 16 is a perspective view showing a main part of an endoscope related to the present invention.

FIG. 17 is an enlarged view showing a relay connector part and a waterproof cap connected by a ball chain.

[Explanation of symbols]

1 ... 3D imaging system 2 ... probe 3A ... Endoscope 4 ... Light source device 5 ... Video processor 6 ... Monitor 7. 3D imaging device 8 ... Coil unit 9 ... Monitor 10 ... insertion part 11 ... Operation unit 12 ... Universal code 13 ... General connector 14 ... Light guide 15 ... Tip 19 ... Insertion port 20 ... Channel 25 ... Serpentine 26 ... Probe connector 29 ... Objective lens 31 ... CCD 38 ... tube 39 ... Source coil 41 ... Coil drive circuit 45 ... Signal processing circuit 46. Display control circuit

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Jun Hasegawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Chieko Aizawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Katsuyoshi Sasakawa 2-34-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Akira Taniguchi 2-43-2, Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Yasuo Hirata 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Hiroki Moriyama 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Yoshinao Daimei 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Hikari (56) Reference JP-A-7-111969 (JP, A) JP-A-8-107875 (JP, A) JP-A-6-261858 (JP, A) JP-A-6-245894 ( JP, A) JP 5-317249 (JP, A) JP 8-243071 (JP, A) JP 7-184840 (JP, A) JP 8-140927 (JP, A) Flat 6-66617 (JP, U) Actual open Flat 6-66603 (JP, U) Actual open Sho 56-23501 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61B 1 / 00-1/32

Claims (6)

(57) [Claims] 1. A scope connected to a light source device and a video processor to provide an endoscopic image, and an endoscope insertion shape detection probe connected to an endoscope insertion shape detection processor to display an endoscope insertion shape. In the endoscope insertion shape detecting device including, the scope detection means on the video processor side, and the endoscope insertion shape detection probe detection means on the endoscope insertion shape detection processor side, the scope detection result and the endoscope An endoscope insertion shape detecting device comprising means for collating and discriminating with a detection result of a probe for detecting insertion shape of the endoscope. 2. The means for checking and discriminating, in the case of a specific combination of the scope and the endoscope insertion shape detecting probe, notifies the operator. Endoscope insertion shape detector. 3. The endoscope insertion shape detecting apparatus according to claim 2, wherein the means for notifying the operator is configured to display that fact on an observation screen. 4. The endoscope insertion shape detecting device according to claim 2, wherein the means for notifying the operator is configured to emit a voice. 5. The scope detection means and the endoscope insertion shape detection probe detection means are configured to read identification information held by the scope and the endoscope insertion shape detection probe, respectively. Item 1. The endoscope insertion shape detection device according to Item 1. 6. The scope detection means and the endoscope insertion shape detection probe detection means respectively connect the scope and the endoscope insertion shape detection probe to the video processor and the endoscope insertion shape detection processor, respectively. 2. The endoscope insertion shape detecting device according to claim 1, wherein the position detecting device is configured to determine the position and the number of contact points that are in contact with each other.