WO2006109370A1 - 被検体内導入装置、被検体内情報取得システム及び被検体内導入装置の作製方法 - Google Patents
被検体内導入装置、被検体内情報取得システム及び被検体内導入装置の作製方法 Download PDFInfo
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- WO2006109370A1 WO2006109370A1 PCT/JP2006/302873 JP2006302873W WO2006109370A1 WO 2006109370 A1 WO2006109370 A1 WO 2006109370A1 JP 2006302873 W JP2006302873 W JP 2006302873W WO 2006109370 A1 WO2006109370 A1 WO 2006109370A1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
- A61B1/041—Capsule endoscopes for imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
- A61B1/0005—Display arrangement combining images e.g. side-by-side, superimposed or tiled
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00002—Operational features of endoscopes
- A61B1/00011—Operational features of endoscopes characterised by signal transmission
- A61B1/00016—Operational features of endoscopes characterised by signal transmission using wireless means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00064—Constructional details of the endoscope body
- A61B1/0011—Manufacturing of endoscope parts
Definitions
- Intra-subject introduction apparatus in-subject information acquisition system, and method for producing intra-subject introduction apparatus
- the present invention relates to an in-subject introduction apparatus such as a compound eye type capsule endoscope, an in-subject information acquisition system, and a method for manufacturing the in-subject introduction apparatus.
- image data imaged inside the body by the capsule endoscope is sequentially transmitted outside the body by wireless communication and stored in a memory provided in a receiver outside the body.
- the doctor or nurse can make a diagnosis based on the image displayed on the display based on the image data stored in the memory.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2003-19111
- Patent Document 2 US Patent Application Publication No. 2002Z109774 Specification
- This compound eye type force-type endoscope includes a plurality of imaging blocks each having an illuminating means such as an LED for illuminating the inside of a body cavity and an imaging element such as a CCD for imaging an image inside the body cavity. Arranged in front and back to capture images before and after the capsule housing in the body cavity in the direction of travel It is supposed to be a structure.
- the capsule-type housing passes quickly, and therefore, in the case of the monocular type, the abnormal part is likely to be overlooked. By capturing images, it is possible to capture a larger number of images even in a short time, so that oversight of abnormal parts can be reduced.
- the small intestine also has a relatively straight luminal force, and unilateral observation with a monocular type is generally sufficient, but the esophagus is mostly composed of a straight lumen, but partly immediately before falling into the stomach. In the cardia area, etc., the shape is asymmetric between going and returning, and the visual field can be secured by front and back bilateral observation with a compound eye type.
- the present invention has been made in view of the above, and maximizes the advantages of the compound eye type that can expand the visual field range by capturing images before and after the moving direction of the capsule housing in the body cavity.
- an in-subject introduction device in a capsule-type housing and in the capsule-type housing to illuminate the inside of a body cavity.
- the plurality of illumination means and the illumination means that are arranged in the capsule-type casing and associated with each other in the arrangement direction are configured to form an imaging block, respectively, and the capsule-type casing in the body cavity And a plurality of imaging means for capturing images before and after the traveling direction.
- the imaging elements of the imaging blocks are disposed in the capsule-type casing with their vertical directions aligned with each other. It is characterized by that.
- each of the imaging elements of the imaging blocks is configured so that the vertical direction of the imaging blocks is relatively shifted by a predetermined angle. It is characterized by being disposed in a psell type casing.
- the imaging elements of the imaging blocks are arranged in the capsule-type casing with their vertical directions different from each other by 180 degrees. It is characterized by being arranged.
- each of the imaging elements of each of the imaging blocks is offset in a vertical direction with respect to an axis of the in-subject introduction device. It is characterized by being placed!
- each of the imaging elements of each of the imaging blocks is a horizontally long element having a predetermined aspect ratio. To do.
- each of the imaging elements of each of the imaging blocks has an imaging direction oblique to an axis of the in-subject introduction device. It is characterized in that it is set in the direction.
- each of the imaging elements of each of the imaging blocks is a horizontally long element having a predetermined aspect ratio, and is It is characterized in that it is arranged in the capsule-type casing with the direction different by 90 degrees between them.
- each of the imaging elements of each of the imaging blocks is a substantially square element, and the vertical direction between them is 45. It is characterized in that it is disposed in the capsule-type casing at different times.
- the capsule-type housing includes a cylindrical body housing in which the imaging blocks are disposed, and the body portion.
- the front end cover housing is provided in a watertight manner with the housing and covers each of the imaging blocks, and includes a transparent front end cover housing that guides the illumination light of the illumination means power.
- An elastic member for urging the body side is further provided.
- An in-subject introduction device is characterized in that, in the above invention, the elastic member is a spring member.
- the in-subject introduction device is the above invention, wherein the imaging block is provided between the imaging blocks. It further includes an interposed light shielding member.
- the in-subject introduction device is characterized in that, in the above invention, the light shielding member is a battery for supplying electric power to the imaging element and the illumination means.
- the in-subject introduction device is characterized in that, in the above invention, the light shielding member is a substrate on which the imaging element and the illumination means are mounted.
- the capsule casing includes a cylindrical trunk casing in which the respective imaging blocks are disposed, and the trunk section. And a transparent tip cover casing that is provided in a watertight manner with the casing and covers each of the imaging blocks and derives the illumination light of the illumination means, and includes the trunk casing and one of the tip cover casings. Is integrally molded as a bottomed housing! It is characterized by scolding.
- the in-subject introduction device according to the above-mentioned invention, wherein the torso casing portion of the bottomed casing is made of a colored material that does not transmit visible light.
- An in-subject information acquisition system is provided by an intra-subject introduction device according to any one of claims 1 to 9 and each imaging element of the in-subject introduction device.
- the acquisition means for acquiring the images in the body cavity imaged in series and the images acquired by the respective image sensors so as to correspond to the arrangement direction of the image sensors.
- display control means for displaying on the display unit in association with each other.
- the display control means displays both images picked up by the image pickup device in which the vertical directions coincide with each other as they are. It is characterized by controlling as follows.
- the display control means is one of the images picked up by the image pickup device in which the vertical directions coincide with each other. Control is performed so that the image is displayed by being reversed horizontally.
- the display control means is configured to display an image captured by the imaging element with the vertical direction being relatively different by 180 degrees.
- One of the features is that control is performed so that one of the images is displayed upside down.
- the display control means is configured to display an image captured by the imaging element with the vertical direction being relatively different by 90 degrees.
- One of the images is controlled to be rotated 90 degrees and displayed.
- the display control means is configured to display an image captured by the image sensor in which the vertical direction is relatively different by 45 degrees.
- One of the images is controlled to be rotated 45 degrees and displayed.
- a method for producing an in-subject introduction device includes a plurality of imaging blocks each having an illuminating means for illuminating the inside of a body cavity and an imaging element for imaging an image in the body cavity, and a cylindrical body
- a casing-type housing which is provided in a water-tight manner with the body casing, covers each of the imaging blocks, and includes a transparent tip cover casing for guiding illumination light of the illumination means power.
- a method for producing a compound-eye type in-subject introduction device that captures images before and after the capsule-type housing in the body cavity in the traveling direction, wherein one of the tip cover one housing and the trunk housing are joined together. Forming a bottomed housing, and positioning the one imaging block from the opening of the fuselage housing with respect to the formed bottomed housing in the axial direction and the direction around the axis. And a step of loading To do.
- the imaging elements of the imaging blocks are associated with each other in the arrangement direction. Since the corresponding positional relationship between the two images is clear when observing a specific part such as an affected part in the body cavity with the images before and after the traveling direction, the two images are displayed.
- the specific site used can be easily examined, and the advantage of the compound eye type that can expand the visual field range can be simplified and maximized.
- Fig. 1 shows an overall configuration of a wireless in-vivo information acquiring system according to an embodiment of the present invention. It is a schematic diagram which shows composition.
- FIG. 2 is a cross-sectional view showing the internal configuration of the capsule endoscope.
- FIG. 3 is a schematic perspective view schematically showing a first example of an arrangement relationship of image sensors.
- FIG. 4 is a schematic perspective view schematically showing a second example of an arrangement relationship of image pickup devices.
- FIG. 5 is an explanatory diagram showing the positional relationship of the imaging regions by the imaging device in the case of the second example.
- FIG. 6 is a schematic perspective view schematically showing a third example of the arrangement relationship of the imaging elements.
- Fig. 7 is an explanatory diagram showing a positional relationship of image pickup areas by the image pickup device of the third example.
- FIG. 8 is a schematic perspective view schematically showing a fourth example of the arrangement relationship of the imaging elements.
- FIG. 9 is an explanatory diagram showing the positional relationship of the imaging regions by the imaging device of the fourth example.
- FIG. 10 is a block diagram showing a schematic configuration of a display device.
- FIG. 11 is a schematic flowchart showing an image display processing procedure by the display control unit.
- FIG. 12 is a diagram showing an example of a display screen of the display unit in the case of the first arrangement example.
- FIG. 13 is a diagram showing another example of the display screen of the display unit in the case of the first arrangement example.
- FIG. 14 is a diagram showing an example of a display screen of the display unit in the case of the second arrangement example.
- FIG. 15 is a diagram showing an example of a display screen of the display unit in the case of the third arrangement example.
- FIG. 16 is an exploded cross-sectional view showing a method for manufacturing a capsule endoscope.
- FIG. 17 is a cross-sectional view illustrating a configuration example of a capsule endoscope according to a first modification.
- FIG. 18 is a cross-sectional view illustrating a configuration example of a capsule endoscope according to a second modification.
- FIG. 1 is a schematic diagram showing the overall configuration of a wireless in-vivo information acquiring system.
- This in-subject information acquisition system uses a compound eye type capsule endoscope as an example of an in-subject introduction device.
- the wireless in-vivo information acquisition system is introduced into the body of the subject 1, captures an in-vivo image, and wirelessly transmits data such as a video signal to the receiving device 2.
- a portable recording medium 5 for transferring data between the receiving device 2 and the display device 4.
- the receiving device 2 also includes a radio unit 2a having a plurality of receiving antennas Al to An attached to the external surface of the subject 1, and radio signals received via the plurality of receiving antennas A1 to An. And a receiving body unit 2b that performs the above-described processing, and these units are detachably connected via a connector or the like.
- Each of the receiving antennas A1 to An is provided, for example, in a jacket on which the subject 1 can be worn, and the subject 1 wears the receiving antennas Al to An by wearing this jacket. It may be. In this case, the receiving antennas Al to An may be detachable from the jacket.
- the display device 4 displays an in-vivo image captured by the capsule endoscope 3. And has a configuration such as a workstation that displays an image based on data obtained by the portable recording medium 5. Specifically, the display device 4 may be configured to directly display an image using a CRT display, a liquid crystal display, or the like, or may be configured to output an image to another medium such as a printer.
- the portable recording medium 5 uses a Compact Flash (registered trademark) memory or the like, and is detachable from the receiving main unit 2b and the display device 4, and outputs information when inserted into or attached to both. It has a function capable of recording. Specifically, the portable recording medium 5 is attached to the receiving main body unit 2b while the capsule endoscope 3 moves in the body cavity of the subject 1, and the capsule endoscope 3 The transmitted data is recorded on the portable recording medium 5. Then, after the capsule endoscope 3 is ejected from the subject 1, that is, after the imaging of the inside of the subject 1 is finished, the capsule endoscope 3 is taken out from the receiving body unit 2b and inserted into the display device 4, and displayed. Data recorded by device 4 is read.
- a Compact Flash registered trademark
- the subject 1 By passing data between the receiving main unit 2b and the display device 4 by the portable recording medium 5, the subject 1 can freely move during imaging in the body cavity, and the display device 4 This also contributes to shortening the data transfer period between the two. It should be noted that the data transfer between the receiving main unit 2b and the display device 4 may be configured to be wired or wirelessly connected to the display device 4 using another recording device built in the receiving main unit 2b. .
- FIG. 2 is a cross-sectional view showing the internal configuration of the capsule endoscope 3.
- the capsule endoscope 3 has an illumination unit 11a, ib as illumination means for illuminating the inside of the body cavity of the subject 1, and an image sensor 12a, 12b using, for example, a CCD or CMOS that images an image inside the body cavity.
- Two sets of imaging blocks 14a and 14b each having sections 13a and 13b are arranged in a capsule-type casing 16 together with a power supply section 15 for supplying power to them.
- the capsule-type casing 16 covers the imaging blocks 14a and 14b, respectively, and is transparent and hemispherical dome-shaped tip cover casings 16a and 16b, and these tip cover casings 16a and 16b and concave and convex engaging portions 17a,
- a cylindrical body casing 16c provided with imaging blocks 14a and 14b with a power supply 15 interposed therein and disposed in a watertight state via 17b, and can be swallowed from the mouth of the subject 1. It is formed in size.
- the body casing 16c is made of a colored material that does not transmit visible light. Is formed.
- the imaging units 13a and 13b are provided on the imaging substrates 18a and 18b, respectively, and the imaging devices 12a and 12b for imaging the range illuminated by the illumination light from the illumination units 11a and 11b, and these imaging devices.
- the movable lenses 19a and 19b and the fixed lenses 20a and 20b, which form the subject image on the images 12a and 12b, are imaged lenses 21a and 21b.
- the movable lenses 19a and 19bi are fixed to the movable frames 22a and 22b
- the fixed lenses 20a and 20b are fixed to the fixed frames 23a and 23b to form the focus adjusting units 24a and 24b.
- the illumination units 11a and ib also have, for example, light-emitting diode (LED) power, and are mounted on the illumination substrates 25a and 25b, and their upper, lower, left and right surroundings with respect to the optical axis centers of the imaging lenses 21a and 21b. Located in 4 locations. Further, in each of the imaging blocks 14a and 14b, on the back side of the imaging boards 18a and 18b, signal processing for controlling or controlling each unit for each block ⁇ control units 26a and 26b is mounted, and further, one imaging block In the signal processing control unit 26a of 14a, a radio board 28 on which a radio unit 27 having an antenna equal force for wireless communication with the outside is mounted. Further, the imaging substrates 18a and 18b and the illumination substrates 25a and 25b are electrically connected as appropriate with cables.
- LED light-emitting diode
- the power supply unit 15 positioned between the imaging blocks 14a and 14b is configured by, for example, a button-type battery 29 having a diameter substantially coinciding with the inner diameter of the body casing 16c.
- a button-type battery 29 having a diameter substantially coinciding with the inner diameter of the body casing 16c.
- the battery 29 an acid silver battery, a rechargeable battery, a power generation battery, or the like can be used.
- the imaging block 14a, 14b is opposed to the tip cover housing 16a, 16b side facing each other, that is, as an elastic member that urges outward.
- the torsion coil spring-shaped spring members 30a and 30b are interposed.
- the radio unit 27 on the radio circuit board 28 and the signal processing 'control unit 26b are appropriately electrically connected to each other by a battery 29 that passes through the outside of the battery 29.
- the battery 29 is also connected to the signal processing' control unit 26a, 26b.
- the radio unit 27 may not be shared by the imaging blocks 14a and 14b, but may be provided individually for each of the imaging blocks 14a and 14b.
- the capsule endoscopes of the imaging blocks 14a and 14b are brought into contact with and brought into contact with a part of the outer peripheral side of the illumination boards 25a and 25b in the vicinity of the inner periphery of the tip cover housings 16a and 16b.
- Positioning parts 31a and 31b that serve as a reference for axial positioning in 3 It is made. Further, between these positioning portions 31a and 31b and the illumination boards 25a and 25b, for example, a combination of uneven shapes that engage and disengage with each other, and a rotation stop positioning portion (not shown) that positions in the direction around the axis. ) Is formed.
- FIG. 3 is a schematic perspective view schematically showing a first example of the arrangement relationship between the imaging elements 12a and 12b.
- the image pickup devices 12a and 12b in the first example are elements having the same structure, and the respective two-dimensional image pickup surfaces 32a and 32b formed in a substantially square shape. They are arranged in the capsule casing 16 in such a manner that their positional relationships are associated with each other so that the vertical directions of the two coincide.
- the rear-facing image sensor 12b is up and down U and D
- the direction around both axes is positioned and arranged in the capsule casing 16 so as to coincide with the element 12a and reverse only in the left and right directions L and R.
- the vertical and horizontal directions of the image sensors 12a and 12b are defined by the two-dimensional scanning direction of the imaging surfaces 32a and 32b (that is, the left-to-right scanning is repeated from the top to the bottom). It will not be
- FIG. 4 is a schematic perspective view schematically showing a second example of the arrangement relationship between the imaging elements 12a and 12b.
- the image pickup devices 12a and 12b of the second example have the same structure, and the two-dimensional image pickup surfaces 32a and 32b are formed in a horizontally long shape having a predetermined aspect ratio.
- the predetermined aspect ratio includes 4: 3, 3: 2, 16: 9, and the like, but here, for example, the aspect ratio is 16: 9.
- the image pickup devices 12a and 12b of the second example as described above are arranged in the capsule casing 16 in association with each other so that their vertical directions are deviated from each other by a predetermined angle. .
- the imaging elements 12a and 12b are arranged with the vertical direction different by 90 degrees between them.
- the up-down and left-right directions of the forward-facing image sensor 12a are U, D, L, and R directions as shown in Fig. 4
- the up-down directions U and D of the rear-facing image sensor 12b are imaged.
- the axis of both elements should be 90 degrees different from the vertical direction U and D of element 12a.
- the peripheral direction is positioned and disposed in the capsule casing 16.
- the vertical and horizontal directions of the imaging devices 12a and 12b are also defined by the direction of two-dimensional scanning of the imaging surfaces 32a and 32b (that is, the left-to-right scanning is repeated up to down). It is not specified.
- FIG. 6 is a schematic perspective view schematically showing a third example of the arrangement relationship between the image sensors 12a and 12b.
- the image pickup devices 12a and 12b of the third example have the same structure, and each two-dimensional image pickup surface 32a and 32b has a predetermined aspect ratio, for example, 16: 9.
- An element formed in a shape is used.
- these image pickup devices 12a and 12b are eccentrically arranged in the vertical direction with respect to the axis of the capsule endoscope 3, and the vertical direction of both is shifted by a predetermined angle.
- the capsules 16 are disposed in the capsule housing 16 in association with each other.
- the image pickup devices 12a and 12b are arranged with their vertical directions different from each other by 180 degrees, that is, upside down.
- the up-down and left-right directions of the image sensor 12a facing forward are U, D, L, and R directions as shown in FIG. 6
- the up-down directions U and D of the image sensor 12b facing backward are the directions of the image sensor 12a.
- the directions around the axes of the two are positioned in the capsule casing 16 so that the directions are 180 degrees different from the vertical directions U and D.
- FIG. 8 is a schematic perspective view schematically showing a fourth example of the arrangement relationship between the imaging elements 12a and 12b.
- the image pickup elements 12a and 12b of the fourth example have the same structure, and elements in which the respective two-dimensional image pickup surfaces 32a and 32b are formed in a substantially square shape are used. Yes.
- the imaging elements 12a and 12b are arranged in the capsule-type casing 16 in association with each other so that their vertical directions are deviated from each other by a predetermined angle. Specifically, the imaging elements 12a and 12b are arranged with the vertical direction different by 45 degrees between them. For example, when the up, down, left, and right directions of the forward-facing image sensor 12a are U, D, L, and R directions as shown in FIG. 8, the up-down directions U and D of the rear-facing image sensor 12b are the imaging elements 12c. The directions around the axes of the two are positioned in the capsule casing 16 so as to be different from each other by 45 degrees with respect to the vertical directions U and D.
- the capsule endoscope 3 having such various arrangement examples is sequentially swallowed through the body cavity after being swallowed from the mouth when the subject 1 is examined. While moving inside the body cavity such as the esophagus, at a certain timing, for example, the front of the body cavity is illuminated by the illuminating unit 11a of the imaging block 14a positioned in front, and the front image in the body cavity is imaged by the imaging element 12a, After the necessary processing by the processing / control unit 26a is performed, the wireless unit 27 wirelessly transmits it to the receiving device 2, classifies it as a single frame image of the front image for the folder F1, and records it on the portable recording medium 5.
- a rear image in the body cavity is captured by the imaging element 12b while illuminating the rear in the body cavity by the illumination unit ib of the imaging block 14b located at the rear, and signal processing / control is performed.
- the wireless unit 27 wirelessly transmits to the receiving device 2, and divides it into a folder F2 that is paired with the folder F1 as one frame image of the rear image. To record.
- Image processing instruction information at the time of image display based on the arrangement relationship of the image sensor 12b with respect to 12a is also recorded.
- the vertical direction in the second example is relatively different by 90 degrees
- information instructing the 90 degree rotation process is added as header information
- the vertical direction in the third example is relatively 180 degrees.
- the information for instructing the upside down process is added as header information
- the 45 degree rotation process is instructed.
- header information To be added as header information.
- the default setting is that no processing is performed as the image processing instruction information at the time of image display (no instruction). It is also possible to add information instructing reversal processing as header information.
- the arrangement directions of the two image sensors 12a and 12b are not associated with each other, Even if there are abnormal sites such as lesions and bleeding sites in the images captured by these image sensors 12a and 12b, it is not known whether they are of the same site or not.
- the merit of the mold is halved. In particular, compared to protrusions such as polyps, bleeding sites and dents (concave lesions) are difficult to understand.
- the arrangement directions of the imaging elements 12a and 12b are associated with each other so that the vertical directions of the imaging elements 12a and 12b coincide with each other.
- the capsule-type casing 16 Since it is arranged in the capsule-type casing 16, when the specific part such as the affected part in the body cavity is observed in the images before and after the traveling direction, the corresponding positional relationship between the two images is clear. It is possible to easily and accurately determine whether or not they have the same power, and it is possible to easily examine the specific site using both images.
- the imaging elements 12a and 12b are arranged in association with each other so that the upper and lower directions coincide with each other, the same part can be imaged twice only in the imaging direction. The same part can be observed closely.
- FIG. 5 is an explanatory diagram showing the positional relationship between the imaging areas 71 and 72 by the imaging elements 12a and 12b in the case of the second example.
- the horizontally elongated imaging areas 71 and 72 corresponding to the imaging elements 12a and 12b are arranged orthogonally corresponding to the orthogonal arrangement relationship of the imaging elements 12a and 12b when viewed in the axial direction of the capsule endoscope 3.
- the body cavity is imaged as a relationship.
- the imaging regions by the imaging lenses 21a and 21b are indicated by broken-line circles in FIG.
- FIG. 7 is an explanatory diagram showing the positional relationship between the imaging regions 71 and 72 by the imaging elements 12a and 12b of the third example.
- the horizontally elongated imaging areas 71 and 72 corresponding to the image sensors 12a and 12b are vertically inverted corresponding to the upside down arrangement relationship of the image sensors 12a and 12b when viewed in the axial direction of the capsule endoscope 3.
- the inside of the body cavity is imaged according to the arrangement relationship.
- the imaging region by the imaging lenses 21a and 21b is indicated by a broken-line circle in FIG.
- the imaging elements 12a and 12b are eccentrically arranged in the vertical direction with respect to the axis of the capsule endoscope 3 and are vertically
- the imaging region 71 is imaged at the upper side in the body cavity and the imaging region 72 is imaged at the lower side in the body cavity.
- the imaging range field of view
- FIG. 9 is an explanatory diagram showing the positional relationship between the imaging areas 73 and 74 by the imaging elements 12a and 12b.
- the imaging regions 73 and 74 corresponding to the imaging devices 12a and 12b are arranged in correspondence with the arrangement relationship of the imaging devices 12a and 12b rotated 45 degrees when viewed in the axial direction of the capsule endoscope 3.
- To image the body cavity for example, if the imaging regions by the imaging lenses 21a and 21b are indicated by broken-line circles in FIG. 20, in the case of the imaging devices 12a and 12b, regions that cannot be observed in the vertical and horizontal directions are generated.
- the imaging range can be related so as to cover areas that cannot be captured, and the imaging within the body cavity can be performed with little oversight.
- the trunk housing 16c is formed of a colored material that is opaque to visible light, but includes a plurality of imaging blocks 14a and 14b. Therefore, for example, during imaging by one imaging element 12a, illumination light from the other illumination unit ib may enter as stray light through a path such as an internal gap, which may degrade the imaging quality.
- the battery 29 having substantially the same diameter as that of the body casing 16c existing between the imaging blocks 14a and 14b functions as a light shielding member. Therefore, the other illumination is used during imaging by the imaging elements 12a and 12b. It is possible to prevent the image quality from being deteriorated due to the influence of light.
- a substrate formed with substantially the same diameter as the body casing 16c may be used as the light shielding member.
- FIG. 10 is a block diagram showing a schematic configuration of the display device 4 shown in FIG.
- the display device 4 has an input unit. 41, a display unit 42, a storage unit 43, and a control unit 44.
- the input unit 41 is realized by a pointing device such as a keyboard and a mouse, and inputs an operation instruction of the display device 4 and instruction information of processing performed by the display device 4, and sends each instruction information to the control unit 44.
- the display unit 42 is realized by a CRT display, a liquid crystal display, or the like, and displays instruction information or an instruction result of the input unit 41.
- the display unit 42 has a predetermined image display area or the like in which images in the image groups Pa and Pb stored in the folders Fl and F2 paired with the storage unit 43 are displayed in parallel.
- the storage unit 43 is realized by, for example, a node disk device or the like, and holds various images acquired from five portable recording devices.
- the folder F1 stores a plurality of image groups Pa that are imaged by the imaging device 12a in the capsule endoscope 3 and that is a frame image force.
- the capsule endoscope In a folder F2 that is paired with this folder F1 every three, an image group Pb having a plurality of frame image forces captured by the image sensor 12b in the capsule endoscope 3 is stored.
- Frame numbers are assigned to the image groups Pa and Pb stored in the folders Fl and F2 in accordance with the reception order of the image data in the reception device 2 for each image.
- the folder F2 includes header information for storing image processing instruction information at the time of image display based on the arrangement relationship of the image sensor 12b with respect to the image sensor 12a specified for each capsule endoscope 3. It has a storage area.
- the control unit 44 controls each process or operation of the input unit 41, the display unit 42, and the storage unit 43.
- the control unit 44 includes an image processing unit 45, a display control unit 46, and an image selection unit 47.
- the image processing unit 45 has a function of selectively performing image processing such as left / right inversion processing, up / down inversion processing, 90 ° rotation processing, 45 ° rotation processing, etc. on the image, and includes each of the image groups Pa and Pb. Appropriate image processing is performed on the frame image.
- the display control unit 46 has a function of controlling the display processing in the display unit 42. In the case of the present embodiment, the display control unit 46 is particularly based on the image groups Pa and Pb stored in the folders Fl and F2.
- image display instruction information is input from the input unit 41
- the image selection unit 47 performs image processing one image at a time in frame number order according to the image group Pa, Pb medium power frame rate stored in the folders Fl, F2. Extracted and output to the unit 45 and the display control unit 46 for image processing and display.
- the image display processing procedure by the display control unit 46 will be described with reference to FIG. In FIG. 11, first, it is determined whether or not instruction information for instructing parallel display of both the front image and the rear image of the capsule endoscope 3 is received from the input unit 41 (step Sl). .
- step SI: Yes the image selection unit 47 is instructed to read the header information in the header information storage area in the folder F2 (step S2), and the folder Fl , Instructing a process of sequentially selecting and reading out the images in the image groups Pa and Pb stored in F2 in the order of frame numbers (step S3). Then, the contents of the header information in the header information storage area in the folder F2 are determined (steps S4 to S7).
- step S4 when there is no specific instruction in the header information (step S4: Yes), the frame images read from the folders Fl and F2 are directly parallel to the image display area of the display unit 42. Display (Step S12). If the left / right inversion instruction information is stored (step S5: Yes), the frame image read from the folder F2 is subjected to the left / right inversion processing by the image processing unit 51 (step S8), and is read from the folder F1. The output frame image and the frame image read out from the folder F2 and subjected to the left-right inversion processing are displayed in parallel in the image display area of the display unit 42 (step S12).
- step S6 if 90 degree rotation instruction information is stored (step S6: Yes), the image processing unit 51 performs a 90 degree rotation process on the frame image read from the folder F2 ( In step S9), the frame image read from the folder F1 and the frame image read from the folder F2 and rotated by 90 degrees are displayed in parallel in the image display area of the display unit 42 (step S12).
- step S7: Yes If the upside down instruction information is stored (step S7: Yes), the image processing unit 51 performs the upside down process on the frame image read from the folder F2 (step S7: Yes). S10), the frame image read from the folder F1 and the frame image read from the folder F2 and subjected to the up / down inversion processing are displayed in parallel in the image display area of the display unit 42 (step S12).
- step S7: No the image processing unit 51 performs 45-degree rotation processing on the frame image read from the folder F2 (step S7: No).
- step SI 1 The frame image read from the folder F1 and the frame image read from the folder F2 and rotated by 45 degrees are displayed in parallel in the image display area of the display unit 42 (step S12).
- step S13 it is determined whether or not the instruction information for instructing to end the display of the image has been received.
- step S13: Yes the display unit 4 End the image display in 2.
- step S14: No it is determined whether the display unit 42 has the power to display the final frame image.
- step S14: Yes it is determined whether the display unit 42 has displayed up to the final frame image.
- step S14: No the image display on the display unit 42 is terminated. If the display unit 42 determines that the final frame image has not been displayed (step S14: No), the processing from step S3 is repeated.
- FIG. 12 is a diagram illustrating an example of a display screen of the display unit 42 in the case of steps S4 and S12.
- the display screen of the display unit 42 displays an inspection image captured by the image sensors 12a and 12b.
- images taken by the image sensors 12a and 12b are displayed in parallel using the main observation monitor 51 portion.
- reference numeral 52 denotes a firing list field for displaying a list of examination dates, and a list of patient names is displayed for each examination date.
- the head image of the examination of the patient is displayed on the main observation monitor 51 portion.
- 53 is a playback controller section for changing the playback method of the main observation monitor 51 section, and has buttons such as playback, pause, frame advance, start start, end end, etc., which can be selected freely.
- the playback button is selected in the playback controller 53 part, a pseudo moving image is displayed by continuously displaying still images on the main observation monitor 51 part.
- 54 is a playback speed change button for switching the playback speed in two stages of low speed and high speed.
- the display number change button 55 is a display number change button for switching the number of images to be displayed on the observation monitor 51 portion between 1 sheet, Z2, and Z4.
- the observation monitor In the 51 portion the inspection images picked up by the image pickup devices 12a and 12b are displayed side by side in parallel.
- 56 for example, the length of the entire bar
- it is an image processing indicator bar that is 10 hours long, and displays the temporal position of the image being played.
- Reference numeral 57 denotes an image picked up by double-clicking an image currently displayed on the observation monitor 51, and is displayed in a reduced size in the selected image list field 58. At the same time, the position corresponding to the selected image of the image processing indicator bar 56 and the upper part of the selected image are connected by a line, and the temporal positional relationship is clearly shown.
- step S4 and 312 in FIG. 11 until step 12 in FIG. 11 is performed.
- the main image is the front image 61 and the rear image 62 captured by the image sensors 12a and 12b at almost the same timing.
- a display example is shown in which 51 observation monitors are displayed side by side in parallel. That is, the front image 61 is an image example in which the forward direction is imaged in the body cavity by the imaging device 12a, and the rear image 62 is an image example in which the backward direction is imaged in the body cavity by the imaging device 12b.
- the forward image and the backward image are displayed in parallel as they are.
- the arrangement relationship of the image sensors 12a and 12b is the same in the vertical direction and reverse in the horizontal direction, so doctors and nurses who see the display screen shown in FIG. It can be seen that the corresponding positional relationship between the two images 61 and 62 is symmetric. For example, it is possible to easily and accurately determine that the abnormal part that appears to the left in the front image 61 and the abnormal part that appears to the right in the rear image 62 are the same part.
- FIG. 13 shows the display on the display unit 42 in the first arrangement example in the case where information for instructing the left / right inversion processing is added as header information in response to a request from the user or the like (steps S5, S12). It is a figure which shows an example of a screen, and the picked-up image by the image pick-up elements 12a and 12b is displayed in parallel using the main observation monitor 51 part. In contrast to FIG. 12, the image 62 after the rearward direction is imaged in the body cavity by the image pickup device 12b is displayed in a horizontally reversed manner.
- the arrangement relationship of the image pickup devices 12a and 12b is such that the vertical direction coincides and only the left-right direction is reversed to V, whereas the image by one of the image pickup devices 12b is reversed and displayed! Therefore, the driver of the car observes both images 61 and 62 as if looking at the front wind power (looking at the front image 61) and looking at the back with the rearview mirror (see the rear image 62).
- the right and left directions of the displayed images match, the corresponding positional relationship between the images 61 and 62 can be understood, and a high-speed diagnosis can be achieved immediately. For example, it is possible to easily and accurately determine that the abnormal part that appears to the left in the front image 61 and the abnormal part that appears to the left in the rear image 62 are the same part.
- FIG. 14 is a diagram showing an example of the display screen of the display unit 42 in the case of steps S6 and S12 accompanied by a 90-degree rotation instruction in the second arrangement example, using the main observation monitor 51 part.
- Images 63 and 64 captured by the imaging elements 12a and 12b are displayed in parallel.
- the front image 63 by one image sensor 12a is displayed as it is
- the rear image 64 by the other image sensor 12b is displayed as a vertically long image by being rotated by 90 degrees.
- the image sensor 12b is arranged with the vertical direction rotated 90 degrees, but when the captured image is displayed, the image sensor 12b is not corrected so that the vertical direction of the image sensor 12b matches the vertical direction of the display.
- the image is displayed in a state that coincides with the vertical direction when the image pickup device 12a is picked up by the rotation process.
- the images 6 3 and 64 are displayed in parallel in a state where the vertical directions at the time of imaging of the image sensors 12a and 12b coincide with each other, so that the corresponding positional relationship between the images 63 and 64 can be easily understood.
- FIG. 15 is a diagram showing an example of the display screen of the display unit 42 in the case of steps S 7 and S 12 accompanied by an upside down instruction in the third arrangement example, and is taken using the main observation monitor 51 part.
- Images 63 and 64 captured by the image elements 12a and 12b are displayed in parallel vertically.
- the rear image 64 by the other image sensor 12b is displayed as an upside down image.
- the image sensor 12b may be arranged with the vertical direction rotated by 180 degrees, but when the captured image is displayed, the image sensor 12b is not corrected so that the vertical direction of the image sensor 12b matches the vertical direction of the display.
- the image is displayed in a state that matches the up and down direction at the time of imaging of the image sensor 12a.
- the images 63 and 64 are displayed in parallel in the vertical direction when the imaging elements 12a and 12b are in the same vertical direction, so that the corresponding positional relationship between the images 63 and 64 can be easily understood. .
- FIG. 16 is a diagram showing a manufacturing method of the capsule endoscope 3 according to the present embodiment.
- the bottomed casing 16 ′ is formed by joining one end cover casing 16b and the body casing 16c with an adhesive (step [1]).
- the image pickup block 14b is also dropped into the bottomed casing 16 ′ by dropping the imaging block 14b into the opening 16d side force of the trunk casing 16c (step [2]).
- the illumination block 25b of the imaging block 14b is abutted against and brought into contact with the positioning portion 31b, thereby positioning the imaging block 14b in the axial direction.
- the battery 29 is dropped into the bottomed casing 16 'and loaded (step [3]), and the other imaging block 14a is also mounted on the bottomed casing. 16, by dropping into the inside (step [4]), and finally joining the tip force bar case 16a to the opening 16d of the body case 16c (step [5]), The capsule endoscope 3 is completed.
- the tip cover housing 16a may be joined to the opening 16d of the body housing 16c with the imaging block 14a loaded in the tip cover housing 16a.
- the imaging block 14a is positioned in the axial direction by bringing the illumination board 25a of the imaging block 14a into contact with the positioning portion 31a.
- the rotation stop positioning portions are engaged with each other, thereby positioning in the direction around the axis. This makes it possible to load the imaging block 14a with high assembly accuracy.
- a mark such as a mark for aligning the position of the rotation stopper positioning portion is provided between the body housing 16c and the tip cover housings 16a and 16b.
- the upper and lower direction of the image pickup devices 12a and 12b of the image pickup blocks 14a and 14b loaded in the capsule case 16 are matched by matching the positions of the rotation stop positioning portions of the tip cover cases 16a and 16b. Can be aligned.
- the imaging blocks 14a, 16a, 16b loaded in the capsule-type casing 16 are made different by changing the positions of the rotation stop positioning portions of the tip cover casings 16a, 16b by 90 degrees.
- the image sensors 12c and 12d of 14b can be arranged so that the vertical direction differs by 90 degrees between them.
- the rotation of the tip cover housings 16a and 16b is prevented. Therefore, by arranging the position of the positioning part 180 degrees, the vertical direction of the image sensors 12c and 12d of the imaging blocks 14a and 14b loaded in the capsule-type housing 16 is arranged 180 degrees different between the two. Can be made.
- the positions of the rotation stopper positioning portions of the tip cover housings 16a and 16b are changed by 45 degrees, so that the imaging blocks 14a and 14b loaded in the capsule housing 16 are changed.
- the imaging elements 12a and 12b can be arranged so that the vertical direction differs by 45 degrees between the two.
- the front end cover housing 16b and the body housing 16c are urged together.
- the built-in objects such as the imaging blocks 14b and 14a can be loaded by the dropping operation from one direction, and the assemblability is improved.
- the positioning unit 31a positions the imaging blocks 14a and 14b in the axial direction and the direction around the axis, and spring members 30a and 30b are interposed between the battery 29 and the imaging blocks 14a and 14b. Since the respective imaging blocks 14a and 14b are in a loaded state in which they are urged toward the tip cover housings 16a and 16b, the assembly accuracy is good and the accuracy can be maintained.
- FIG. 17 is a cross-sectional view showing a configuration example of the capsule endoscope 3 of the first modification.
- the one end cover casing 16b and the body section casing 16c are joined with an adhesive to form the bottomed casing 16, but the first modification is the tip cover casing.
- 16 and the body casing 16 are formed as a bottomed casing 16 to be formed by integral molding. This makes it possible to assemble by dropping the one-way force described with reference to FIG.
- the tip cover casing 16 portion is required to transmit visible light
- the trunk casing 16c is required to be opaque to visible light. Therefore, in the first modification, when the bottomed casings 16 to 16 are integrally molded, the body casing 16 portion is formed by a two-color molding method using a colored material that does not transmit visible light. It is also possible to integrally form the bottomed casing 16 to the whole with a transparent material and to color the inside or the outside of the body casing 16 portion by painting.
- FIG. 18 is a cross-sectional view showing an example of the internal configuration of the capsule endoscope 3 of the second modification.
- the optical axis direction (imaging direction) of the imaging blocks 14a and 14b is set to be an oblique direction that is not parallel to the axis of the capsule endoscope 3 itself. It is set and arranged in the capsule casing 16.
- the positioning portions 31a and 31b of the tip cover housings 16a and 16b are also formed to be in an oblique state rather than orthogonal to the axis of the capsule endoscope 3. .
- the positioning portions 31a and 31b are set to be parallel to each other.
- the spring members 30a and 30b are also made of a U-shaped spring so as to urge the imaging blocks 14a and 14b toward the oblique positioning portions 31a and 31b.
- the image pickup devices 12a and 12b included in the image pickup blocks 14a and 14b are arranged in the capsule casing 16 in association with each other so that their vertical directions are shifted by a predetermined angle.
- the image pickup devices 12a and 12b are arranged with the vertical direction different by 180 degrees between them, that is, upside down. Therefore, the images taken by these image sensors 12a and 12b can be displayed in parallel, for example, by inverting the image on the image sensor 12b side upside down, as in the case described above!
- the imaging directions of the imaging elements 12a and 12b are set obliquely with respect to the axis of the capsule endoscope 3, so that, for example, imaging in a body cavity is performed.
- the upper side can be picked up as a front image by the image pickup device 12a, and the lower side can be picked up as a post image by the image pickup device 12b, so that observation in the body cavity can be overlooked.
- the in-subject introduction apparatus, the in-subject information acquisition system, and the in-subject introduction apparatus according to the present invention have a compound eye type capable of imaging in both the front and rear directions and expanding the visual field range. This is useful for the intra-subject introduction apparatus, the intra-subject information acquisition system, and the method for producing the intra-subject introduction apparatus.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/572,784 US8038607B2 (en) | 2005-04-12 | 2006-02-17 | Body insertable apparatus with a plurality of imaging blocks |
CN2006800119565A CN101160087B (zh) | 2005-04-12 | 2006-02-17 | 被检体内导入装置及被检体内信息获得系统 |
AU2006233956A AU2006233956B2 (en) | 2005-04-12 | 2006-02-17 | Device to be introduced into subject, system for acquiring information on inside of subject, and method of producing device to be introduced into subject |
EP06714014.5A EP1870019B1 (en) | 2005-04-12 | 2006-02-17 | Device to be introduced into subject, system for acquiring information on inside of subject, and method of producing device to be introduced into subject |
US11/699,127 US7959562B2 (en) | 2005-04-12 | 2007-01-29 | Body-insertable apparatus, in-vivo information acquiring system, and body-insertable apparatus manufacturing method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005115027A JP4695432B2 (ja) | 2005-04-12 | 2005-04-12 | 被検体内導入装置、被検体内情報表示装置、及び被検体内情報取得システム |
JP2005-115027 | 2005-04-12 |
Publications (1)
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WO2006109370A1 true WO2006109370A1 (ja) | 2006-10-19 |
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PCT/JP2006/302873 WO2006109370A1 (ja) | 2005-04-12 | 2006-02-17 | 被検体内導入装置、被検体内情報取得システム及び被検体内導入装置の作製方法 |
Country Status (6)
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US (2) | US8038607B2 (ja) |
EP (1) | EP1870019B1 (ja) |
JP (1) | JP4695432B2 (ja) |
CN (1) | CN101160087B (ja) |
AU (1) | AU2006233956B2 (ja) |
WO (1) | WO2006109370A1 (ja) |
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US8038607B2 (en) | 2011-10-18 |
JP2006288832A (ja) | 2006-10-26 |
JP4695432B2 (ja) | 2011-06-08 |
CN101160087A (zh) | 2008-04-09 |
US20090043155A1 (en) | 2009-02-12 |
EP1870019A1 (en) | 2007-12-26 |
AU2006233956B2 (en) | 2009-10-01 |
EP1870019A4 (en) | 2009-08-19 |
US7959562B2 (en) | 2011-06-14 |
CN101160087B (zh) | 2012-03-14 |
EP1870019B1 (en) | 2017-05-24 |
AU2006233956A1 (en) | 2006-10-19 |
US20070191683A1 (en) | 2007-08-16 |
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