JP3790926B2 - Endoscope device and endoscope insertion shape detection device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an endoscope apparatus provided with an endoscope insertion shape detection probe for detecting an endoscope insertion shape, and an endoscope insertion shape detection apparatus.
[0002]
[Prior art]
Conventionally, a system of a type that performs 3D imaging by inserting a 3D imaging probe into a forceps channel of a scope like a treatment tool used for endoscopy is known.
[0003]
[Problems to be solved by the invention]
In the system as described above, since the 3D imaging probe protrudes from the forceps channel, the connector of the 3D imaging probe floats in the air. This connector may give mechanical stress to the 3D imaging probe due to its weight.
[0004]
The present invention has been made in view of such a problem, and when 3D imaging is performed by inserting a 3D imaging probe into a scope from a forceps channel, the mechanical force applied to the 3D imaging probe due to the weight of the connector of the 3D imaging probe. It is an object of the present invention to provide an endoscope apparatus and an endoscope insertion shape detection apparatus having a 3D imaging probe that reduces stress and has a long lifetime.
[0005]
[Means for Solving the Problems]
An endoscope apparatus according to the present invention includes an endoscope that can be inserted into a subject, a distal end portion that can be inserted into a forceps channel of the endoscope, and an endoscope with respect to an endoscope insertion shape detection processor. An endoscope insertion shape detection probe for transmitting insertion shape data; a relay connector portion capable of connecting a proximal end portion of the endoscope insertion shape detection probe and the endoscope insertion shape detection processor; and the relay connector And holding means for holding the part integrally with the endoscope.
The endoscope insertion shape detection device of the present invention is an endoscope in which a distal end portion can be inserted into a forceps channel of an endoscope and endoscope insertion shape data is sent to an endoscope insertion shape detection processor. An insertion shape detection probe, a relay connector portion capable of connecting a proximal end portion of the endoscope insertion shape detection probe and the endoscope insertion shape detection processor, and the relay connector portion with respect to the endoscope And holding means for holding integrally.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0007]
First, prior to the description of the embodiment of the present invention, a reference example of the present invention will be described.
[0008]
1 to 3 relate to a first reference example of the present invention, FIG. 1 shows a configuration of a 3D imaging system as a first reference example, and FIG. 2 shows an internal view according to the first reference example of the present invention. FIGS. 3A, 3B, and 3C show cross-sectional structures of the insertion portion, the universal cord, and the serpentine tube portion. The purpose of this reference example is to provide an endoscope in which exchange of a 3D imaging probe is easy.
[0009]
As shown in FIG. 1, a 3D imaging system 1 includes an endoscope 3A provided 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 supplies illumination light, a video processor 5 that performs signal processing on an image sensor of the endoscope 3, a monitor 6 that displays a video signal output from the video processor 5, and a rear end of the probe 2 A 3D imaging device 7 that is connected and performs 3D imaging processing, a coil unit 8 that is connected to the 3D imaging device 7, and a monitor 9 that displays a video signal output from the 3D imaging device 7 are configured.
[0010]
As shown in FIGS. 1 and 2, the endoscope 3 </ b> A has an elongated insertion portion 10 to be inserted into a body cavity, an operation portion 11 provided at the rear end of the insertion portion 10, and extends from the operation portion 11. The base of the light guide 14 that protrudes from the front end surface of the general connector 13 at the end of the universal cord 12 is detachable from the light source device 4.
[0011]
The insertion portion 10 includes a hard distal end portion 15, a bendable bending portion 16 provided adjacent to the distal end portion 15, and a long flexible portion 17 extending from the bending portion 16 to the front end of the operation portion 11. The bending portion 16 can be bent by operating the bending knob 18 provided on the operation portion 11 as shown in FIG.
[0012]
Further, a forceps channel insertion port 19 for inserting a treatment tool is provided near the front end of the operation unit 11, and a treatment tool such as a biopsy forceps (not shown) can be inserted from the forceps channel insertion port 19. The treatment tool inserted from the channel insertion port 19 projects from the distal end opening through a channel 20 (see FIG. 1) inside the forceps channel insertion port 19 so that a biopsy treatment or the like can be performed. As shown in FIG. 1, the forceps channel insertion port 19 communicates with the channel 20 and communicates with a suction conduit 21 extending toward the operation unit 11.
[0013]
Further, an electrical connector portion 22 is provided on the side of the general connector 13, and the electrical connector portion 22 is detachably connected to the video processor 5 via a signal cable 23.
[0014]
Further, the probe 2 inserted from the integrated connector 13 into the endoscope 3 </ b> A is inserted into the serpentine tube portion 25 connected to the integrated connector 13. A probe connector 26 provided at the rear end of the serpentine tube portion 25 is detachably connected to the 3D imaging apparatus 7. The probe connector 26 and the serpentine tube portion 25 are attachable / detachable.
[0015]
As shown in FIG. 1, a lamp 27 for generating illumination light is provided inside the light source device 4 to which the base of the light guide 14 is connected, and the light from the lamp 27 is collected by a condenser lens 28. To the light guide 14. The illumination light is transmitted by the universal cord 12 and the light guide 14 inserted through the insertion portion 10 and emitted forward from the distal end surface fixed to the illumination window of the distal end portion 15 to illuminate a subject such as an affected area. An objective lens 29 is attached to an observation window provided adjacent to the illumination window, and an image is formed at the imaging position.
[0016]
For example, a CCD 31 is disposed at the imaging position as a solid-state imaging device, and photoelectric conversion is performed by the CCD 31. The CCD 31 is detachably connected to the video processor 5 through a cable 32 inserted through the insertion portion 10 and the like and a signal cable 23 connected to the general connector 13.
[0017]
A CCD drive circuit 34 is provided in the video processor 5, and a signal charge photoelectrically converted by the CCD 31 is read by applying a CCD drive signal from the CCD drive circuit 34 to the CCD 31, and the video processor 5. After being amplified by the preamplifier 35, it is input to the signal processing circuit 36 to generate a standard video signal, and this video signal is output to the monitor 6. An endoscopic image of the affected part or the like imaged by the CCD 31 is displayed on the display surface of the monitor 6 to which the video signal is input.
[0018]
The endoscope 3A of the present reference example is provided with a hollow tube 38 that forms a dedicated insertion path through which the probe 2 is inserted. That is, as shown in FIGS. 3A, 3 </ b> B, and 3 </ b> C, the tube 38 is inserted into the insertion portion 10, the universal cord 12, and the serpentine tube portion 25, and the probe 2 is inserted into the tube 38. Has been. The distal end of the tube 38 is fixed to the distal end portion 15 of the insertion portion 10 by press fitting or the like.
[0019]
In this reference example, the serpentine tube portion 25 is formed of a tube having an inner diameter larger than the outer diameter of the tube 38, for example, and the tube 38 is inserted inside the tube. In addition, the inner diameter of the tube 38 is slightly larger than the outer diameter of the probe 2, so that the operation of pulling out the probe 2 inserted through the tube 38 to the outside can be easily performed, and the operation of inserting a new probe 2. Is also relatively easy to do.
[0020]
In other words, the endoscope 3A of the present reference example is configured such that the probe 2 is formed by forming a dedicated insertion passage (introduction passage) through which the tube 2 is inserted and the probe 2 is inserted into the endoscope main body portion where the probe 2 is not provided. The endoscope 3A that can detect the insertion shape is configured.
[0021]
Further, in this reference 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, and the insertion and removal of the probe 2 is easy and easy to replace. It is characterized by forming a mechanism (detachment mechanism). The tube 38 is thin and flexible in order to maintain the thin and flexible insertion portion 10 and has an insertion path that facilitates insertion when a new probe 2 is inserted for replacement. It is desirable to form with the member which has the elastic force which returns to a circular cross section so that it can ensure. Alternatively, it may have a certain degree of hardness to maintain a circular cross section.
[0022]
In addition, when the tube 38 is formed of a synthetic resin or the like, if the elastic force required when the material is made thin is insufficient, for example, a tube may be used to increase the elastic force to return to the circular cross section. A thin metal coil may be embedded inside the 38 thin film.
[0023]
As shown in FIG. 3, in the insertion portion 10 and the universal cord 12, in addition to the probe 2 inserted into the tube 38, a channel 20 (aspiration conduit 21) through which a treatment tool such as a biopsy forceps can be inserted. ), The cable 32 connected to the CCD 31 and the light guide 14 are inserted. In addition, an air / water supply channel (not shown) or the like is inserted into the insertion portion 10 and the universal cord 12.
[0024]
A plurality of source coils 39 are provided at regular intervals or the like in a portion arranged in the insertion portion 10 to be inserted into the body cavity in the probe 2, and each source coil 39 is connected to a plurality of signal lines 40. The signal line 40 reaches the probe connector 26.
[0025]
The 3D imaging apparatus 7 to which the probe connector 26 is connected is provided with a coil drive circuit 41. The coil drive circuit 41 applies an AC drive signal to each source coil 39 via a signal line 40 and surrounds it. To generate a magnetic field. The magnetic field is detected by a plurality of sense coils 42 in the coil unit 8 arranged at a known position, amplified by the preamplifier 44 in the 3D imaging apparatus 7 via the signal line 43, and then input to the signal processing circuit 45. Then, the process of detecting the position of the source coil 39 in the probe 2 is performed.
[0026]
An output signal of the signal processing circuit 45 is input to the display control circuit 46, and the display control circuit 46 displays the shape of the insertion portion 10 through which the plurality of source coils 39 are inserted from the positions of the plurality of source coils 39, that is, 3D. A display process is performed, and the generated video signal of 3D display is output to the monitor 9, and the shape of the insertion portion 10 is displayed in a pseudo 3D manner on the display surface of the monitor 9. The front end of the serpentine tube 25 is fixed to the general connector 13 in a watertight manner by a fixing cover 47 on the side of the general connector 13.
[0027]
Next, the operation of this reference example will be described. By setting the connection state as shown in FIG. 1, it is possible to set the endoscope examination state. 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 in 3D imaging on the monitor 9 by detecting the position of the source coil 39 in the probe 2.
[0028]
Therefore, the surgeon can smoothly insert into the body cavity with reference to the 3D imaging display displayed on the monitor 9. When the probe 2 needs to be replaced due to repeated use, the probe connector 26 is removed from the serpentine tube portion 25 (and the fixing cover 47 fixed with screws or the like is removed) and pulled out as it is. 2 can be extracted through the tube 38.
[0029]
On the contrary, when the repair is completed or a new probe 2 is set in the endoscope 3A, the probe 2 is inserted into the serpentine tube portion 25 from its distal end side and pushed into the tube 38 of the serpentine tube portion 25. And the tip of the probe 2 is brought to the endoscope tip 15.
[0030]
In this case, the probe 2 can be smoothly inserted into the insertion portion 10 through the universal cord and the operation portion 11 using the hollow portion of the tube 38 having a hollow cross section larger than that of the probe 2 as a guide.
[0031]
When the old probe 2 is removed, the tube 38 in the endoscope 3A is compressed by another built-in object, so that the cross-sectional shape of the hollow portion of the tube 38 (from the same circular cross-sectional shape as that of the probe 2) Although it may be deformed into an ellipse or the like, it may become narrower, but by applying a force that spreads at the tip of the probe 2 inserted inside, this force and the elastic force of the tube 38, a circular cross section The probe 2 can be smoothly inserted.
[0032]
Then, the probe 2 reaches until the tip of the probe 2 coincides with the tip surface of the tip portion 15. If the fixed cover 47 is fixed and the relay cable portion 25 and the connector 26 are connected, the replacement work can be completed.
[0033]
This reference example has the following effects. Since the man-hours required to replace the probe 2 can be greatly reduced, the time required for repair can be shortened and the work can be facilitated, and therefore the repair cost can be reduced.
[0034]
In this reference example, as shown in FIG. 3C, the tube 38 is also inserted in the snake tube portion 25, but as a modified example, only the front end portion of the snake tube 25 is shown. A structure connected to the tube 38 may be used. Also in this case, when replacement is necessary, after the old probe 2 is pulled out, the new probe 2 can be inserted into the serpentine tube portion 25 and further inserted into the endoscope from the tube 38 facing the front end thereof. It has substantially the same effect as the first reference example.
[0035]
Next, a second reference example of the present invention will be described with reference to FIGS. FIG. 4 shows an endoscope according to a second reference example of the present invention, FIGS. 5 and 6 show the periphery of the relay connector, and FIG. 7 shows insertion means formed in the insertion part in the modification. The purpose of this reference example is the same as that of the first reference example.
[0036]
The endoscope 3B shown in FIG. 4 employs a probe 50 having a structure in which the probe main body 49 provided in the insertion portion 10 can be easily replaced with the endoscope 3A of the first reference example. For this reason, a different part is demonstrated.
[0037]
In this endoscope 3B, a relay connector 51 is provided on the side of the front end of the operation unit adjacent to the folding end of the rear end (base end) of the insertion unit 10 to be inserted into a body cavity of a patient or the like. The rear end of the probe body 49 inserted into the insertion portion 10 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, is extended to the outside from the general connector 13, and the connector 26 at the other end is detachably connected to the 3D imaging apparatus 7.
[0038]
That is, in this endoscope 3B, the probe 50 is detachably connected to the probe main body 49 by the connector part 51 and the probe main body 49 inserted into the insertion part 10, and a part thereof is inside the operation part 11 and the universal cord 12. The relay cable 52 is inserted into the internal connector 13 and extended to the outside from the general connector 13. A probe connector 26 that can be attached / detached is attached to the rear end of the relay cable 52.
[0039]
5 and 6 show the detailed structure of the relay connector 51. FIG. As shown in FIG. 5, the relay connector portion 51 is covered with a waterproof cover 53, and the waterproof cover 53 is slidable in the direction indicated by the arrow 54. As shown in FIG. 6, a connector 55 at the rear end of the probe main body 49 and a connector 56 at the front end of the relay cable 52 that is detachably connected to the connector 55 are disposed inside the waterproof cover 53.
[0040]
For example, a watertight seal member is attached to the inner surface of the waterproof cover 53, and when the cover is moved to cover the connectors 55 and 56 as shown in FIG. Is kept watertight.
[0041]
Moreover, although not shown in the insertion part 10 (in FIG.4, FIG.5, FIG.6), as shown in FIG. 1, the tube 38 is penetrated. The rear end of the tube 38 is exposed inside the waterproof cover 53 near the front end of the operation unit 11.
[0042]
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 period of time before being replaced, a structure that does not pass through the tube 38 may be used.
[0043]
Next, the operation of this reference example will be described. Also in this reference example, the insertion shape can be displayed by the endoscope 3B in the same manner as in the first reference example. Then, by repeatedly inserting / removing the insertion portion 10 into / from the bent body cavity, the portion inserted into the insertion portion 10 in the probe 50, that is, the portion belonging to the probe main body 49 may be required to be replaced. .
[0044]
In this case, the waterproof cover 53 of the relay connector portion 51 is opened as shown in FIG. 6 to expose the relay connectors 55 and 56, and after separating them, the relay connector 55 portion of the probe body 49 is pulled, An operation of pulling out from the insertion portion 10 is performed. Also in this case, since the probe main body 49 is inserted into the hollow tube 38 having a cross-sectional shape larger than the cross-sectional shape thereof, it can be easily pulled out.
[0045]
Then, an alternative new probe 50 is inserted (pushed) from the end of the tube 38 exposed from the relay connector 51 into the waterproof cover 53, so that the tube 38 is expanded as a guide. The probe body 49 can be easily inserted into the insertion portion 10 by applying a force and returning it to a circular cross-section (same as the cross-sectional shape of the probe main body 49) by the elastic force (restoring force) of the tube 38. After the probe body 49 is inserted until the distal end of the probe body 49 reaches the distal end of the endoscope 3B, the connectors 55 and 56 are connected, and the waterproof cover 53 is closed to complete the connection.
[0046]
According to the present reference example, there is an effect that the probe 50 can be exchanged easily and in a short time, almost as in the first reference example. Further, in the present reference example, the probe main body 49 passing through the insertion portion 10 whose frequency of replacement becomes relatively high due to the bending of the insertion portion 10 can be independently replaced. Man-hours can be reduced. In addition, the repair cost is for a portion of the probe rather than the entire probe, which can be reduced.
[0047]
In the second reference example, as in the first reference example, a tube 38 that makes it easy to attach and detach the probe 2 is provided in the insertion portion 10. However, as a modification, for example, a coil is employed. Alternatively, as shown in FIG. 7, the probe insertion path 59 may be formed using a component 58 inside the insertion portion. As the component 58 inside the insertion portion, for example, a probe insertion passage 59 as shown by a dotted line may be formed by raising a flex or the like provided in the insertion portion 10 inward.
[0048]
That is, since it is only necessary to secure a path for the probe 50, the present invention is not limited to the tube 38, and 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 used effectively.
[0049]
As another modification of the tube 38 forming the insertion path of the probe 2 or the probe 50 (probe main body 49) in the first or second reference example, for example, a shape memory member may be used.
[0050]
For example, a coil-shaped member made of, for example, a shape memory alloy is embedded in the flexible tube film, 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 and heated to transform the shape memory alloy formed into the coiled member into a high temperature side phase. You may make it return to the circular cross section memorize | stored in the shape.
[0051]
Moreover, it is not limited to the phase transformation by heating by supplying an electric current, but it is also possible to return to a circular cross-section in the same manner by placing it in a chamber at a temperature higher than the phase transformation temperature. Moreover, it is not limited to the thing which returns to the circular cross-section shape-stored beforehand by setting to the phase of a high temperature side, It is made to return to the circular cross-section previously memorized by setting the phase of a low-temperature side. Things can be used.
[0052]
Next, a third reference example of the present invention will be described with reference to FIGS. The purpose of this reference example is always to provide an endoscope that can be used in combination with a correct endoscope and probe. FIG. 8 shows an endoscope main body 61 and an endoscope 63 for performing endoscope insertion shape imaging by inserting a probe 62 into the forceps channel insertion port 19.
[0053]
In this reference example, for example, a marking 64 is provided in the forceps channel insertion port 19, and the marking 64 has a color that can be clearly distinguished from the color of the operation unit 11.
[0054]
The probe 62 used by being inserted into the forceps channel insertion port 19 includes a probe main body 65 and a relay cable 67 connected to the relay connector portion 66 at the rear end of the probe main body 65. The probe 62 inserted and used has, for example, the same marking 68 as the marking 64 on the relay connector 66.
[0055]
When the operator inserts the probe 62 into the forceps channel insertion port 19 of the endoscope body 61 and uses it, the operator selects and uses the probe 62 with the same marking 68 as the marking 64 without error. To be able to.
[0056]
In other words, the endoscope main body 61 and the probe 62 that can be used in combination therewith are provided with identification markings 64 and 68 that are different from the marking of the probe that cannot be used in combination.
[0057]
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 apparatus.
[0058]
In FIG. 8, it is possible to determine that the endoscope main body 61 and the probe 62 are paired by line-shaped markings of the same color. However, the present invention is not limited to this. For example, 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 same character markings 70a and 70b may be used, or the same numbers may be written or protrusions and depressions having the same shape may be provided.
[0059]
Next, the operation of this reference example will be described. When preparing a probe to perform 3D imaging, if the identification information such as the marking 64 of the endoscope body 61 and the identification information such as the marking 68 of the probe 62 are the same, the endoscope It can be easily seen whether the probe 62 can be used for the main body 61.
[0060]
This reference example has the following effects. At the time of 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, so that examination efficiency is improved. In addition, when the probe 62 is inserted into the forceps channel, it has been unknown in the past whether the length matches the insertion portion 10 of the endoscope body 61. Since it is possible to confirm whether the combination is correct, accurate 3D imaging can be performed without error.
[0061]
Next, a fourth reference example of the present invention will be described with reference to FIGS. The purpose of this reference example is the same as that of the third reference example. FIG. 11 shows a 3D imaging system 74 together with an endoscope 73 that performs imaging of an endoscope insertion shape by inserting a probe 72 into a forceps channel of an endoscope main body 71 as in the third reference example. .
[0062]
The endoscope main body 71 has an insertion portion 75, an operation portion 76, a universal cord 77, and a scope connector 78, 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 a scope connector 80.
[0063]
The probe main body 83 is inserted into the probe 72 by using the forceps channel insertion port 84 of the endoscope main body 71. A 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 main body 83, and the probe connector 87 at the rear end of the relay cable 86 is connected to the 3D imaging processor 88.
[0064]
The video processor 82 is connected to a monitor 6 for displaying an endoscopic image, and the 3D imaging processor 88 is connected to a monitor 9 for displaying a 3D imaging image.
[0065]
The 3D imaging image of the endoscope insertion portion displayed on the monitor 9 is displayed so that there is no sense of incongruity by changing the ratio of the diameter and the loop diameter on the screen with the actual insertion portion 75. Further, in order to deal with various endoscopes, the endoscope ID (scope ID) is read, and the diameter and loop diameter of the 3D imaging image of the scope on the monitor 9 are determined accordingly.
[0066]
FIG. 12 shows the mutual connection relationship of the endoscope 73, the video processor 82, and the 3D imaging processor 88. In this reference example, the endoscope main body 71 is provided with an endoscope identification means (scope identification means) 91 for identifying the endoscope main body 71, and the video processor 82 detects the identification means 91 ( An identification) scope detection circuit 92 is provided, and information identified by the scope detection circuit 92 is sent to the combination determination circuit 94 in the 3D imaging processor 88 via the communication control circuit 93.
[0067]
The probe 72 is also provided with probe identification means 95 for identifying the probe 72. The probe identification means 95 is identified by a probe detection circuit 96 provided in the 3D imaging processor 88, and the identification information is a combination discrimination. It is sent to the circuit 94.
[0068]
The combination discriminating circuit 94 has combination information storage means composed of an EEPROM or the like in which correct combination information is written in advance, and the scope information detected by the scope detection circuit 92 and the scope information detected by the probe detection circuit 96 are combination information. It is determined whether or not the correct combination information read from the storage means is applicable.
[0069]
When it is determined that the combination is appropriate, 3D imaging is performed as usual. When it is determined that the combination is not appropriate, a signal indicating that the combination is not valid is output to the display control circuit 46, and 3D imaging is performed. Absent. In this case, a message indicating that the combination is not valid is displayed on the observation screen.
[0070]
The other configurations of the video processor 82 and the 3D imaging processor 88 are the same as those described in the video processor 5 and the imaging apparatus 7 in FIG.
[0071]
Next, the operation of this reference example will be described. When connected to FIG. 13 so that the endoscope shape can be displayed together with the endoscopy, the identification means 91 and 95 provided on the endoscope main body 71 and the probe 72 are respectively connected to the video processor 82 and 3D imaging. The data is read by the detection circuits 92 and 96 provided in the processor 88 and sent to the combination determination circuit 94.
[0072]
The combination determination circuit 94 determines whether or not the combination of both is valid, and as a result, if it is valid, 3D imaging can be performed as usual. On the other hand, if the combination is incorrect, it is determined that the combination is not valid, and 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 generated, or a warning sound may be notified only by the warning sound.
[0073]
As a means for identifying a scope or a probe, a known means can be used. For example, among a plurality of pins provided in a connector part, for example, a combination of pins that are conducted differs depending on the type of the scope or the probe. Prepare and detect whether the scope or probe is the correct combination by detecting the pin that is conductive when connected, or provide a ROM for the scope or probe, and when connected, read the information and read the information from the scope or probe It may be determined whether or not is a correct combination.
[0074]
This reference example has the following effects. According to this reference example, since the 3D imaging is always performed only with the correct scope and probe combination, the correct 3D imaging is always performed, so that the accuracy of the display of the insertion shape is improved and the insertion operation is performed. Etc. can be performed more smoothly.
[0075]
In addition, since erroneous connection notification is also performed, even if the displayed 3D imaging image is suspicious, it can be immediately determined whether it is due to failure or due to erroneous connection, so that the inspection can proceed without delay.
[0076]
(First embodiment of the present invention)
Next, a first embodiment of the present invention will be described with reference to FIG. An object of the present embodiment is to provide means for holding a connector for supplying an electrical signal to the endoscope body with respect to a probe for performing 3D imaging of an endoscope used by being inserted into a forceps channel of the endoscope. By providing, it is possible to prevent the buckling of the probe and the disconnection of the signal line.
[0077]
An endoscope 101 for 3D imaging according to this embodiment shown in FIG. 13 is provided, for example, in the endoscope 73 shown in FIG. 11, in which an elastic member 102 that fixes the relay connector 85 to the endoscope body 71 is provided. .
[0078]
The elastic member 102 has a shape as shown in FIG. 14. The elastic member 102 is inserted into the ring-shaped coupling groove (engagement groove) 103 of the relay connector 85 and is inserted into the operation unit 76 of the endoscope main body 71. Two arcs are back-to-back.
[0079]
The relay connector 85 is provided with a ring-shaped coupling groove 103 that fits and fixes the smaller arc portion, and can be fixed by fitting the smaller arc portion of the elastic member 102 into the coupling groove 103. It can also be removed by force.
[0080]
In addition, although it is substantially H-shaped here by two circular arcs, this may be a shape in which two circles are combined. In this case, the elastic member 102 is attached from the distal end of the probe 72 and the insertion portion 75 of the endoscope main body 71, respectively. The rest of the configuration is the same as that of the endoscope 73 shown in FIG. 11, and the same components are denoted by the same reference numerals, and the description thereof is omitted.
[0081]
Note that the probe main body 106 shown in FIG. 15 in which the elastic member 102 is integrally provided in the relay connector 85 and the detachable scope mounting frame 105 protrudes from the operation unit 76 may be employed.
[0082]
Next, the operation of this embodiment will be described. If the elastic member 102 is fitted in both the connector 85 and the operation unit 76 of the scope as shown in FIG. 13, both are relatively restrained and mechanically attached to the probe 72 for performing 3D imaging with the weight of the connector 85. Can give very little power. The elastic member 102 can be used by being fitted into the universal cord 77 instead of the operation unit 76. This embodiment has the following effects.
[0083]
Since the connector 85 and the operation unit 76 of the scope are relatively restrained, the load on the probe 72 that performs 3D imaging is reduced, and the life of the probe 72 can be extended. Along with this, the repair cost of the user is reduced. Further, when the connector 85 and the elastic member 102 are integrated, the possibility of losing the elastic member 102 can be eliminated, and useless expenses can be avoided.
[0084]
(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. The purpose of this embodiment is the same as that of the first embodiment. The endoscope 111 of the second embodiment shown in FIG. 16 corresponds to the other embodiment of the endoscope 101 of the first embodiment shown in FIG. 13, and is similar to the first embodiment. In the endoscope 73 shown in FIG. 11, a means for restraining or holding a portion of the probe 72 extending from the insertion port 84 to the outside is further provided to reduce or prevent the influence of the load by the connector portion 85 on the probe 72. It is.
[0085]
In other words, the flange 112 is provided in the relay connector portion 85 extending to the outside from the insertion port 84 in the probe 72, and the hole provided in the flange 112 is fixed through one end of the ball chain 113. A waterproof cap 114 is attached to the end.
[0086]
As shown in an enlarged view in FIG. 17, the other end of the ball chain 113 and one end of the second ball chain 116 are attached to the ball chain attaching portion 115 of the waterproof cap 114. The other end of the ball chain 116 is attached to the notch 117 of the waterproof cap 114. When the ball chain 116 is attached to the notch 117, a circle 118 indicated by a broken line in the figure is formed.
[0087]
The size of the circle 118 is larger than the outer diameter of the universal cord 77, and the connector 85 is held so that the vicinity of the base end of the universal cord 77 passes inside as shown in FIG. The probe 72 can be prevented from being bent downward due to the weight of the connector portion 85.
[0088]
By doing in this way, it can prevent that the probe 72 which came out of the insertion port 84 will be in the state bent downward by the weight of the connector part 85, and will be in the state bent downward by the weight of the connector part 85. It is possible to effectively prevent the internal signal line from being easily broken.
[0089]
Next, the operation of this embodiment will be described. FIG. 16 shows a state during an 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. The waterproof cap 114 and the connector portions 85 and 86 a are relatively restrained with respect to the universal cord 77 by the frictional force between the ball chain 113 and the universal cord 77.
[0090]
This embodiment has the following effects. Similar to the first embodiment, since the mechanical load applied to the probe 72 that performs 3D imaging is reduced, the lifetime of the probe 72 is extended. Furthermore, according to this embodiment, since the waterproof cap 114 is restrained by the probe 72, the possibility of losing the waterproof cap 114 can be eliminated.
[0091]
Although not shown, even if a 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, the above-described operation can be performed.
[0092]
[Appendix]
1. Endoscope insertion including a light source device, a scope connected to a video processor and providing an endoscope image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display an endoscope insertion shape In the shape detection device,
An endoscope insertion shape detection apparatus characterized in that a path of an endoscope insertion shape detection probe incorporated in the scope is restricted exclusively.
[0093]
1-1. The endoscope insertion shape detection device according to appendix 1, wherein the passage of the endoscope insertion shape detection probe is formed by a tube.
[0094]
1-2. The endoscope insertion shape detection device according to appendix 1, wherein a path of the endoscope insertion shape detection probe is formed by a structure inside the endoscope.
[0095]
(Background of Appendix 1 group)
(Appendix 1 conventional technologies)
Among the endoscopy, in the colonoscopy, it is necessary to know the shape of the endoscope insertion portion in the patient's body. (Hereinafter, this shape is referred to as an “insertion shape.”) This is to prevent the perforation of the large intestine under examination and the rotation to an unreasonable shape.
[0096]
(Appendix 1 issues)
By the way, since the entire insertion portion of the endoscope is bent freely, and the distal end has a curved portion, the 3D imaging probe inside the endoscope is periodically used due to mechanical fatigue when used repeatedly for inspection. Replacement is required. However, in the case of an endoscope in which a 3D imaging probe is built in the endoscope, since the structure is not easy to replace, this replacement work requires a great number of man-hours.
[0097]
For example, even if the 3D imaging probe to be replaced can be removed from the endoscope by forcibly pulling it with such a large force as to break it, if an attempt is made to insert a new 3D imaging probe, the old 3D imaging probe The part that has been removed is narrowed by other built-in objects, and there is no cross-sectional passage through which a new 3D imaging probe can be inserted. Since it cannot be inserted, it has to be disassembled and inserted, resulting in a problem that requires a lot of time and skill to insert.
[0098]
(Means and actions of appendix 1)
In an endoscope in which an endoscope insertion shape detection probe is provided in the endoscope body in order to detect the endoscope insertion shape, the endoscope insertion shape detection probe is dedicated to introduce the endoscope insertion shape into the endoscope body. The cross-sectional shape of the introduction passage is similar to the cross-sectional shape of the endoscope insertion shape detection probe and has a larger cross-sectional area. An attachment / detachment mechanism such as a tube having a characteristic of returning to an elastic force in its cross-sectional shape, and when the endoscope insertion shape detection probe needs to be replaced, An attachment / detachment mechanism allows easy replacement without disassembling the endoscope.
[0099]
2. An endoscope including a light source device, a scope that is connected to a video processor and provides an endoscope image, and an endoscope insertion shape detection probe that is connected to the endoscope insertion shape detection processor and displays the endoscope insertion shape In the insertion shape detection device,
The endoscope insertion shape detection probe has a relay connector and can be divided before and after the relay connector.
[0100]
2-1. The endoscope insertion shape detection device according to appendix 2, wherein the relay connector is disposed in the vicinity of the endoscope operation unit.
[0101]
2-2. The endoscope insertion shape detection device according to appendices 2 and 2-1, wherein the relay connector is detachable from the outside of the endoscope.
[0102]
2-3. The endoscope insertion shape detection device according to appendix 2, 2-1 or 2-2, wherein the relay connector has a waterproof cover.
[0103]
(Background of Appendix 2 group)
(Additional Group 2 Conventional Technology) Same as the conventional technology of Appendix 1 Group.
[0104]
(Problem of Appendix 2) Same as the problem of Appendix 1.
[0105]
(Means and actions of Appendix 2) The 3D imaging probe built in the scope is divided into a probe part and a cable part, relayed by a connector, and the probe in the scope insertion part where mechanical conditions are relatively severe. The parts can now be exchanged independently and without disassembling the scope.
[0106]
3. Endoscope insertion including a light source device, a scope connected to a video processor and providing an endoscope image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display an endoscope insertion shape In the shape detection device,
Endoscope insertion shape, characterized in that the scope and the endoscope insertion shape detection probe are provided with visual or tactile identification means, and the identification means is the same in the endoscope and the endoscope insertion shape detection probe Detection device.
[0107]
3-1. In the endoscope insertion shape detection device according to appendix 3, the identification means provided in the endoscope and the endoscope insertion shape detection probe includes a pattern provided on the endoscope and a probe outer surface having the same color as the pattern. An endoscope insertion shape detection device characterized by being provided.
[0108]
3-2. In the endoscope insertion shape detection device according to appendix 3, the identification means provided in the endoscope and the endoscope insertion shape detection probe are the same pattern provided in the endoscope and the endoscope insertion shape detection probe. An endoscope insertion shape detecting device characterized in that:
[0109]
3-3. In the endoscope insertion shape detection device according to appendix 3, the identification means provided in the endoscope and the endoscope insertion shape detection probe have the same shape provided in the endoscope and the endoscope insertion shape detection probe. An endoscope insertion shape detection device characterized by being a pattern.
[0110]
(Background of Appendix 3 group)
(Additional Group 3 Prior Art) There is a type of 3D imaging system in which a 3D imaging probe is inserted into a forceps channel of a scope like a treatment tool used for endoscopy to perform 3D imaging.
[0111]
However, since there are various types of scopes such as the total length and the length of the curved portion, correct 3D imaging is impossible unless a 3D imaging probe that is well suited to each scope is used. The selection of the 3D imaging probe for each examination was troublesome.
[0112]
(Problems of Appendix 3) When performing endoscopy while performing 3D imaging, it is possible to reduce the effort and man-hours required when selecting a 3D imaging probe suitable for each type of scope. Providing a 3D imaging system that allows users to easily select a combination of scope and 3D imaging probe.
[0113]
(Appendix 3 means and action) The matching scope and the 3D imaging probe are attached with the same accent that can be visually or tactilely identified so that the combination can be easily identified.
[0114]
4). Endoscope insertion including a light source device, a scope connected to a video processor and providing an endoscope image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display an endoscope insertion shape In the shape detection device,
Scope detection means on the video processor side and endoscope insertion shape detection probe detection means on the processor side, and the scope detection result and the endoscope insertion shape detection probe detection result are collated. An endoscope insertion shape detecting apparatus characterized by comprising means for discriminating.
[0115]
4-1. The endoscope insertion shape detection apparatus according to appendix 4, wherein the means for collating and discriminating notifies an operator in the case of a specific combination of a scope and an endoscope insertion shape detection probe. Mirror insertion shape detection device.
[0116]
4-1-1. The endoscope insertion shape detection device according to any one of appendices 4 and 4-1, wherein the means for notifying the operator is displayed on the observation screen.
[0117]
4-1-2. The endoscope insertion shape detection device according to any one of appendices 4, 4-1, 4-1-1, wherein the means for notifying the operator is by emitting a sound.
[0118]
4-2. The endoscope insertion shape detection device according to attachment 4, wherein the scope detection means and the endoscope insertion shape detection probe detection means are configured to read out identification information held by the scope and the endoscope insertion shape detection probe. Endoscope insertion shape detection device.
[0119]
4-3. In the endoscope insertion shape detection device according to attachment 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 by determining the position and the number of contact points in contact with each other.
[0120]
(Background of Appendix 4 group)
(Prior Art of Appendix 4) Same as the prior art of Appendix Group 3.
[0121]
(Problem of Appendix 4 group) Same as the problem of Appendix 3 group.
[0122]
(Appendix 4 means and actions) Each scope and 3D imaging probe has its own identification means, and when connected to a video processor and 3D imaging processor, respectively, the validity of the combination is judged and the user is informed. The information was announced.
[0123]
5. Endoscope insertion including a light source device, a scope connected to a video processor and providing an endoscope image, and an endoscope insertion shape detection probe connected to the endoscope insertion shape detection processor to display an endoscope insertion shape An endoscope insertion shape detection device characterized by having means for mutually restraining a scope and an endoscope insertion shape detection probe in the shape detection device.
[0124]
5-1. The endoscope insertion shape detection device according to appendix 5, wherein the means for mutually restraining is performed by a holding member that simultaneously holds the scope and the endoscope insertion shape detection probe. Or the holding member.
[0125]
5-1-2. The endoscope insertion shape detection device or the holding member according to appendix 5, 5-1, wherein the holding member is an elastic body, or the holding member.
[0126]
5-2. In the endoscope insertion shape detecting device or holding member according to appendix 5, 5-1, 5-1-2, the holding member is formed integrally with the endoscope insertion shape detecting probe main body. The endoscope insertion shape detection device or the holding member.
[0127]
5-3. The endoscope insertion shape detection probe according to appendix 5 includes a holding member that holds a cap of the endoscope insertion shape detection probe on a connector of the endoscope insertion shape detection probe, and the holding member is held by a scope. An endoscope insertion shape detection apparatus characterized by the above.
[0128]
5-3-1. The endoscope insertion shape detection device according to appendix 5, wherein the holding member is wound around and held by a scope.
[0129]
(Background of Appendix 5 group)
(Appendix 5 groups of conventional technologies) Same as [Conventional technologies].
[0130]
(Problems of appendix 5 group) Same as [Problems to be solved by the invention].
[0131]
(Means and actions of appendix 5) Same as [Means for Solving the Invention].
[0132]
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,
The endoscope apparatus according to claim 1, wherein the introduction passage has a cross-sectional size and shape to which the endoscope insertion shape detection probe can be attached and detached.
[0133]
7). The endoscope apparatus according to claim 6, wherein the introduction passage for introducing the endoscope insertion shape detection probe into the endoscope is made of a hollow tube.
[0134]
8). An endoscope insertion shape detection probe introduced into the endoscope to detect an endoscope insertion shape;
An introduction passage for introducing the endoscope insertion shape detection probe into the endoscope;
An endoscope insertion shape detection device that is connected to an output end of the endoscope insertion shape detection probe and inputs and processes the output of the endoscope insertion shape detection probe;
The endoscope apparatus according to claim 1, wherein the endoscope insertion shape detection probe has a relay connection portion for enabling removal outside the operation portion of the endoscope.
[0135]
9. The endoscope apparatus according to claim 8, wherein the relay connection portion has a waterproof cover.
[0136]
10. An endoscope insertion shape detection probe introduced into the endoscope to detect an endoscope insertion shape;
An introduction passage for introducing 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,
An endoscope apparatus comprising the endoscope insertion shape detection probe and an identification type of the endoscope provided in the endoscope insertion shape detection probe and the endoscope.
[0137]
11. An endoscope,
A video processor connected to the endoscope, processing an endoscopic image from the endoscope and outputting it to a monitor;
An endoscope insertion shape detection probe introduced into the endoscope to detect the endoscope insertion shape;
An endoscope insertion shape detection device for detecting an endoscope insertion shape from the endoscope insertion shape detection probe;
An introduction passage for introducing the endoscope insertion shape detection probe into the endoscope;
The endoscope insertion shape detection probe has a relay connection for enabling removal between the endoscope insertion shape detection device and the endoscope insertion shape detection device,
Signal means for identifying the type of the endoscope in the endoscope,
The endoscope insertion shape detection probe comprises a signal means for identifying the type of the endoscope insertion shape detection probe,
The video processor has a detection means for detecting the type of the endoscope by a signal means for identifying the type of the endoscope.
The endoscope insertion shape detection device collates the detection means of the endoscope insertion shape detection probe type and the detection result of the endoscope type with the detection result of the endoscope insertion shape detection probe type. An endoscope apparatus characterized by having means for discriminating.
[0138]
12 The endoscope apparatus according to claim 11, wherein the endoscope insertion shape detection device has means for notifying a result of the collation and determination.
[0139]
13. An endoscope insertion shape detection probe introduced into the endoscope to detect an endoscope insertion shape;
An endoscope apparatus comprising: the endoscope insertion shape detection probe; and a holding member that integrally connects the endoscope.
[0140]
14 In an endoscope provided with an endoscope insertion shape detection probe in the endoscope body in order to detect an endoscope insertion shape,
A dedicated introduction passage for introducing the endoscope insertion shape detection probe into the endoscope body;
An attachment / detachment mechanism that facilitates attachment / detachment of the endoscope insertion shape detection probe to the introduction passage;
An endoscope provided with
[0141]
15. In Additional Statement 14, the attachment / detachment mechanism has a larger cross-sectional area similar to the cross-sectional shape of the endoscope insertion shape detection probe in the cross-sectional shape of the introduction passage, and has a characteristic of returning to the cross-sectional shape to elastic force An endoscope characterized by being formed by.
[0142]
16. In Supplementary Note 14, the attachment / detachment mechanism returns 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 by heating or cooling the member forming the introduction passage. Endoscopy characterized by
[0143]
【The invention's effect】
According to the present invention, a connector for a 3D imaging probe that is inserted into a forceps channel, or a scope, or both, are provided with means for holding each other (constraining relative movement). It is possible to reduce mechanical stress on the 3D imaging probe by freely moving with respect to the scope.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a 3D imaging system which is a first reference example of the present invention.
FIG. 2 is a perspective view showing an endoscope according to a first reference example of the present invention.
3 is a cross-sectional view of the insertion portion, universal cord, and snake tube portion of FIG. 2;
FIG. 4 is a perspective view showing an endoscope according to a second reference example of the present invention.
FIG. 5 is a perspective view showing the vicinity of a relay connector provided in the operation unit of FIG. 4;
FIG. 6 is a perspective view showing the vicinity of a relay connector portion in a state where a waterproof cover is opened.
FIG. 7 is an explanatory view showing a state where a probe insertion path is formed by a component inside the insertion portion.
FIG. 8 is a perspective view showing a main part of an endoscope according to a third reference example of the present invention.
FIG. 9 is a diagram showing a case where identification information different from FIG. 8 is formed.
FIG. 10 is a diagram showing a case where other identification information is formed.
FIG. 11 is a configuration diagram of a 3D imaging system which is a fourth reference example of the present invention.
12 is a block diagram showing an internal configuration in FIG.
FIG. 13 is a perspective view showing the main part of the endoscope according to the first embodiment of 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 main body integrally provided with an elastic member.
FIG. 16 is a perspective view showing a main part of an endoscope according to a second embodiment of the present invention.
FIG. 17 is an enlarged view showing a relay connector portion 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 equipment
8 ... Coil unit
9 ... Monitor
10 ... Insertion section
11 ... Operation part
12 ... Universal code
13 ... General connector
14 ... Light guide
15 ... tip
19 ... Insertion slot
20 ... Channel
25 ... Self-tube section
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

Claims (5)

An endoscope that can be inserted into a subject;
An endoscope insertion shape detection probe that can be inserted into a forceps channel of the endoscope and that sends endoscope insertion shape data to an endoscope insertion shape detection processor;
A relay connector portion capable of connecting a proximal end portion of the endoscope insertion shape detection probe and the endoscope insertion shape detection processor;
Holding means for holding the relay connector portion integrally with the endoscope;
An endoscope apparatus characterized by comprising:   The endoscope apparatus according to claim 1, wherein the holding unit is a holding member that holds the endoscope and the relay connector at the same time.   The endoscope apparatus according to claim 2, wherein the holding member is an elastic body.   The endoscope apparatus according to claim 3, wherein the holding member is formed integrally with the relay connector.   An endoscope insertion shape detection probe having a distal end portion that can be inserted into a forceps channel of the endoscope and sending endoscope insertion shape data to an endoscope insertion shape detection processor;
  A relay connector portion capable of connecting a proximal end portion of the endoscope insertion shape detection probe and the endoscope insertion shape detection processor;
  Holding means for holding the relay connector portion integrally with the endoscope;
  An endoscope insertion shape detection device comprising:

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