WO2012070504A1 - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
WO2012070504A1
WO2012070504A1 PCT/JP2011/076704 JP2011076704W WO2012070504A1 WO 2012070504 A1 WO2012070504 A1 WO 2012070504A1 JP 2011076704 W JP2011076704 W JP 2011076704W WO 2012070504 A1 WO2012070504 A1 WO 2012070504A1
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WO
WIPO (PCT)
Prior art keywords
endoscope
light guide
lumen
main body
distal end
Prior art date
Application number
PCT/JP2011/076704
Other languages
English (en)
Japanese (ja)
Inventor
政克 川浦
Original Assignee
テルモ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2010261008A external-priority patent/JP2012110468A/ja
Priority claimed from JP2010293144A external-priority patent/JP5756629B2/ja
Application filed by テルモ株式会社 filed Critical テルモ株式会社
Publication of WO2012070504A1 publication Critical patent/WO2012070504A1/fr

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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
    • A61B1/05—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 characterised by the image sensor, e.g. camera, being in the distal end portion
    • 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
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • 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
    • A61B1/06—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 with illuminating arrangements
    • A61B1/07—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 with illuminating arrangements using light-conductive means, e.g. optical fibres
    • 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
    • A61B1/313—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 for introducing through surgical openings, e.g. laparoscopes

Definitions

  • the present invention relates to an endoscope.
  • Endometriosis is a disease in which the endometrium and similar tissues grow in the pelvis other than the uterine lumen and uterine body, and it takes 1 in 10 women. Symptoms such as dysmenorrhea and excessive menstruation due to endometriosis significantly reduce QOL. In addition, there are reports that about half of endometriosis becomes infertile. On the other hand, infertility occurs at a rate of 1 out of 10 couples.
  • causes of infertile women include fallopian tube factor, ovulation factor, uterine factor, cervical factor and the like. In particular, the fallopian tube factor is very high due to increased endometriosis and Chlamydia infection.
  • the definitive diagnosis of endometriosis and fallopian tube factor infertility is performed with a laparoscope (see, for example, Patent Document 1).
  • This laparoscope that is, an endoscope, is installed at the long endoscope main body, the distal end portion of the endoscope main body, and guides light that illuminates the observation site, an imaging element that images the observation site, And a plurality of light guides for emitting the light from the tip. Further, the distal end portion of the light guide is positioned on the distal end side with respect to the image sensor, and the light guide is disposed on the outer side of the image sensor when viewed from the axial direction of the endoscope body.
  • a laparoscope for inserting an endoscope from the abdomen has a problem that scars remain in the abdomen and hospitalization by general anesthesia is necessary. Further, when it is desired to observe the back side of the organ, it is necessary to lift the target organ with forceps or the like and observe it, and damage or adhesion to the organ becomes a problem.
  • a transvaginal laparoscope is a small endoscope that is difficult to treat or test, but does not hurt the abdomen, can be used for local anesthesia day tests, and is very minimally invasive .
  • the abdominal cavity is filled with physiological saline or the like at the time of examination, the organ is in a floating state, and movement of the organ can be performed simply by avoiding pushing, so there is no worry of damage.
  • the transvaginal laparoscope is minimally invasive and very good.
  • the diameter of the endoscope is still as thick as about 3 mm, puncture resistance and bleeding from the puncture site are problematic, There is a great burden on patients and a thinner endoscope is required.
  • An object of the present invention is to provide an endoscope capable of reducing the diameter of the endoscope body.
  • the present invention comprises an elongated endoscope body having at least one light guide lumen and inserted into a lumen of a living body, An image sensor that is installed at the tip of the endoscope body and images an observation site; At least one light guide that is inserted into the lumen for the light guide so as to be movable in the axial direction of the endoscope main body, guides light that illuminates the observation site, and emits the light from the distal end portion;
  • the endoscope main body is formed on a proximal end side with respect to the imaging element, has an opening on a side surface of the endoscope main body, and has a side hole communicating with a distal end portion of the light guide lumen.
  • the endoscope of the present invention it is provided on the proximal end side of the endoscope main body, and has a movement operation means for moving the light guide, It is preferable that the moving operation means has a function of restricting a protruding length of the light guide from the side hole.
  • a distal end portion of the light guide lumen is inclined with respect to a central axis of the endoscope body.
  • the light guide lumen is located on the inner side of the imaging element when viewed from the axial direction of the endoscope body.
  • At least the distal end portion of the endoscope body has flexibility, It is preferable to have a bending means for bending the distal end portion of the endoscope body.
  • the endoscope body includes a linear body lumen, Formed along the axial direction of the endoscope main body, open to the side surface of the distal end portion of the endoscope main body, and has a long hole communicating with the linear body lumen;
  • the bending means has a linear body that is movably inserted into the linear body lumen, has a distal end portion fixed to the distal end portion of the endoscope body, and pulls the distal end portion of the endoscope body. Is preferred.
  • the light guide is configured to emit light from at least a part of the side surface of the distal end portion and the distal end.
  • the distal end portion of the light guide is bent or bent into a predetermined shape in a natural state.
  • the light guide is inserted into the light guide lumen so as to be rotatable about its central axis.
  • the endoscope of the present invention has two or more light guides,
  • the endoscope body preferably includes two or more light guide lumens, and the light guide lumens are arranged at equal intervals along the circumferential direction of the endoscope body. .
  • the light guide is inserted into the light guide lumen so as to be rotatable about the central axis of the light guide.
  • the endoscope has an operating means that is provided on a proximal end side of the endoscope main body and operates the light guide.
  • the operation means includes a main body portion, A base installed to be movable in the axial direction of the endoscope main body with respect to the main body and the light guide are connected, and the base can be rotated around the central axis of the light guide. It is preferable to provide a moving part having a rotating operation member installed in the.
  • a reinforcing layer is provided on at least a part of the portion exposed to the outside of the light guide.
  • the endoscope body has a treatment lumen that is arranged in parallel to the light guide lumen and communicates laterally with the light guide lumen.
  • the endoscope is inserted into the light guide lumen and the treatment lumen so as to be movable in the axial direction of the endoscope main body, and is arranged in parallel with the first lumen and the first lumen.
  • a connecting tube having a second lumen By moving the connection tube in the axial direction of the endoscope main body, it is possible to adopt a state in which the distal end portion of the connection tube protrudes from the hole portion and a state in which the connection tube is accommodated in the endoscope main body.
  • the light guide is preferably inserted into the first lumen so as to be movable in the axial direction of the endoscope main body and rotatable about the central axis of the light guide.
  • FIG. 1 is a plan view and a side view showing a first embodiment of an endoscope of the present invention.
  • FIG. 2 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 3 is a cross-sectional view showing the shaft connector and the light guide slide taken along line AA in FIG. 4 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 5 is a cross-sectional view showing a second embodiment of the endoscope of the present invention.
  • FIG. 6 is a bottom view showing a third embodiment of the endoscope of the present invention.
  • FIG. 7 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 8 is a cross-sectional view of the endoscope shown in FIG. FIG.
  • FIG. 9 is a cross-sectional view showing a fourth embodiment of the endoscope of the present invention.
  • FIG. 10 is a cross-sectional view showing a fifth embodiment of the endoscope of the present invention.
  • FIG. 11 is a plan view and a side view showing a sixth embodiment of the endoscope of the present invention.
  • 12 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 13 is a cross-sectional view showing the operation unit taken along line AA in FIG.
  • FIG. 14 is a cross-sectional view showing the operation unit taken along line BB in FIG.
  • FIG. 15 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 16 is a cross-sectional view of the endoscope shown in FIG. FIG.
  • FIG. 17 is a cross-sectional view of the endoscope shown in FIG.
  • FIG. 18 is a cross-sectional view showing the distal end portion in the seventh embodiment of the endoscope of the present invention.
  • FIG. 19 is a plan view showing a distal end portion in the eighth embodiment of the endoscope of the present invention.
  • FIG. 20 is a perspective view showing a proximal end portion of the connection tube of the endoscope shown in FIG.
  • FIG. 21 is a cross-sectional view showing the endoscope body taken along line CC in FIG.
  • FIG. 22 is a cross-sectional view showing the endoscope body taken along line DD in FIG.
  • FIG. 23 is a cross-sectional view showing the endoscope body taken along line EE in FIG.
  • FIG. 24 is a cross-sectional view showing the endoscope main body, the connection tube, the light guide, and the treatment tube taken along line EE in FIG. 25 is a cross-sectional view showing a proximal end portion of the endoscope shown in FIG.
  • FIG. 1 is a diagram showing a first embodiment of an endoscope of the present invention, in which FIG. 1 (a) is a plan view and FIG. 1 (b) is a side view.
  • 2 is a cross-sectional view of the endoscope shown in FIG. 1
  • FIG. 3 is a cross-sectional view showing a shaft connector and a light guide slide along the line AA in FIG. 2
  • FIG. 4 is an internal view shown in FIG. It is sectional drawing of a mirror.
  • the left side in FIGS. 1, 2, and 4 to 9 is referred to as “tip”, the right side is “base end (rear end)”, the upper side is “upper”, and the lower side is “lower”.
  • an endoscope 1 is installed at a long endoscope body 2 to be inserted into a living body lumen and at the distal end of the endoscope body 2, and an observation site is arranged.
  • the use of the endoscope of the present invention is not particularly limited, but for example, it is preferably used as a hysteroscope for observing the inside of the uterus, a colposcope for observing the inside of the vagina, and a laparoscope used transvaginally.
  • a case where the endoscope 1 is a laparoscope, that is, a transvaginal laparoscope will be described as a representative example.
  • the imaging device 3 for example, a solid-state imaging device such as a CCD image sensor or a CMOS image sensor can be used.
  • the image pickup device 3 and the image pickup optical system 4 are housed in a casing and integrated into a single package in the illustrated configuration.
  • the part of the image pickup device 3 including the casing is referred to as the image pickup element 3, and the portion of the image pickup optical system 4 is referred to as the image pickup optical system 4.
  • the imaging unit 30 is configured by the imaging element 3 and the imaging optical system 4. Needless to say, the imaging device 3 and the imaging optical system 4 may be provided separately.
  • the outer shape of the imaging device 3 and the imaging optical system 4 when viewed from the axial direction of the endoscope body 2 is not particularly limited, but is circular in the illustrated configuration. Further, the outer diameter of the image sensor 3 and the outer diameter of the imaging optical system 4 are equal.
  • the outer shape of the endoscope main body 2 when viewed from the axial direction is not particularly limited, but in the illustrated configuration, it is circular.
  • the endoscope main body 2 has a linear shape, and is composed of a flexible member, that is, a flexible member over the entire length thereof. When the endoscope body 2 is linear, the endoscope body 2 can easily penetrate the living body. Although it does not specifically limit as a constituent material of the endoscope main body 2, For example, various resin materials can be used.
  • the proximal end portion of the endoscope body 2 may be formed of a hard member, and the portion on the distal end side of the proximal end portion may have flexibility, and the distal end portion of the endoscope body 2 may be flexible. May have flexibility, and the part of the base end side rather than the tip may be constituted by a hard member. Moreover, the endoscope main body 2 may be comprised with the hard member over the full length.
  • the endoscope main body 2 is formed with two light guide lumens 21.
  • Each light guide lumen 21 is formed from the proximal end to the distal end of the endoscope body 2. That is, the distal end portion of each light guide lumen 21 is positioned at the distal end portion of the endoscope body 2, and the proximal ends are opened at the proximal end of the endoscope body 2, respectively.
  • the light guide lumens 21 are arranged so as to face each other with the central axis O of the endoscope body 2 interposed therebetween. Since each light guide lumen 21 is the same, one light guide lumen 21 will be typically described below.
  • the outer diameter of the endoscope body 2 is constant over its entire length, and the endoscope body 2 captures images over its entire length when viewed from the axial direction of the endoscope body 2. It does not protrude outward from the element 3. That is, the outer diameter of the endoscope body 2 is equal to the outer diameter of the image sensor 3, and the outer peripheral surface of the image sensor 3 and the outer peripheral surface of the endoscope body 2 form a continuous surface without a step. Further, when viewed from the axial direction of the endoscope body 2, the light guide lumen 21 is located inside the image sensor 3.
  • the outer diameter of the endoscope main body 2 can be reduced, thereby reducing the burden on the examinee and the patient.
  • the outer diameters of the endoscope body 2 and the image sensor 3 are each preferably 10 mm or less, more preferably about 0.3 to 5.0 mm, and about 0.5 to 2.0 mm. More preferably.
  • a cable lumen 23 is formed in the endoscope body 2.
  • the cable lumen 23 is formed from the proximal end to the distal end of the endoscope body 2. That is, the distal end portion of the cable lumen 23 opens at the distal end of the endoscope body 2, and the proximal end opens at the proximal end of the endoscope body 2.
  • the cable lumen 23 is disposed at the center of the endoscope body 2.
  • the cable 6 including each wiring of the image sensor 3 is inserted through the cable lumen 23, and the base end portion of the cable 6 is connected to the connector 72.
  • the connector 72 is detachably connected to a corresponding connector of a control / light source device having a light source, a control unit, etc. (not shown), and each image signal, control signal, etc. is connected between the control / light source device and the image sensor 3. Signals are transmitted and received.
  • Each light guide 5 is inserted into the light guide lumen 21 so as to be movable in the axial direction of the endoscope body 2. Since each light guide 5 is the same, one light guide 5 will be typically described below.
  • the light guide 5 is not particularly limited as long as it can guide light, but in the present embodiment, from the viewpoint of efficiently guiding light, one optical fiber or an optical fiber bundle formed by bundling a plurality of optical fibers is used. It is configured. Each optical fiber of the optical fiber bundle is fixed and integrated with each other.
  • the constituent material of the optical fiber include various resin materials and glass, and a resin material is preferable.
  • the resin material constituting the fiber include polymethyl methacrylate, polystyrene, styrene acrylonitrile, polycarbonate, and polychlorostyrene.
  • the corner of the tip of the light guide 5 is rounded. Thereby, safety is improved.
  • a light projection lens (not shown) may be provided at the tip of the light guide 5.
  • each side hole 22 is formed closer to the base end side than the image sensor 3. In addition, since each side hole 22 is the same, below, one side hole 22 is demonstrated typically.
  • the endoscope 1 moves the light guide 5 in the axial direction of the endoscope body 2 so that the distal end portion of the light guide 5 protrudes from the side hole 22 (hereinafter also referred to as “projection state”). ) (See FIG. 4) and a state of being housed in the endoscope main body 2 (hereinafter also referred to as “housed state”) (see FIG. 2).
  • the endoscope body 2 can be smoothly moved by placing the endoscope 1 in the retracted state.
  • the observation site can be illuminated with light emitted from the tip of the light guide 5. Further, by moving the light guide 5 according to the situation and disposing its tip at an optimum position, it is possible to perform optimum illumination according to the situation.
  • the tip of the light guide lumen 21 is inclined at a predetermined angle with respect to the central axis O. Thereby, the front-end
  • the inclination angle ⁇ of the light guide lumen 21 with respect to the central axis O is preferably about 1 to 45 °, and more preferably about 1 to 30 °. Thereby, the amount of movement of the light guide 5 when the tip portion of the light guide 5 protrudes from the side hole 22 can be made relatively small, and the tip portion of the light guide 5 can be smoothly protruded from the side hole 22. .
  • the inner peripheral surface of the light guide lumen 21 of the endoscope body 2 may be subjected to a friction reducing process such as applying a lubricant. Thereby, the light guide 5 can be moved smoothly.
  • the light guide 5 is inserted through the light guide lumen 21, and the base end of the light guide 5 is connected to the connector 71.
  • the connector 71 is detachably connected to a corresponding connector of the control / light source device.
  • Light emitted from the light source of the control / light source device enters from the proximal end of the light guide 5, is guided by the light guide 5, exits from the distal end of the light guide 5, and a predetermined part is illuminated.
  • the illumination light is not particularly limited, and examples thereof include monochromatic light such as white light and laser light.
  • a shaft connector 17 and a light guide slide 18 are installed at the proximal end of the endoscope body 2 as operation means (movement operation means) for moving each light guide 5 in the axial direction of the endoscope body 2.
  • the shaft connector 17 has a cylindrical shape.
  • the endoscope main body 2 is separated into a distal end side member and a proximal end side member at the proximal end portion thereof, and the two members are connected via a shaft connector 17.
  • the inner peripheral surface of the shaft connector 17 is fixed to the outer peripheral surface of the endoscope body 2.
  • the shaft connector 17 is formed with a pair of long holes 171 penetrating through the side walls thereof.
  • Each elongated hole 171 is formed from the proximal end portion to the distal end portion of the shaft connector 17 along the axial direction of the endoscope body 2. Further, the long holes 171 are arranged so as to face each other with the central axis O therebetween. Each light guide 5 and cable 6 are inserted through the shaft connector 17.
  • the light guide slide 18 is installed so as to be movable in the axial direction of the endoscope body 2 with respect to the shaft connector 17.
  • the overall shape of the light guide slide 18 is cylindrical, and the outer diameter thereof is set to be larger than the outer diameter of the shaft connector 17.
  • a hole 181 having a shape corresponding to a portion where the elongated hole 171 of the shaft connector 17 is present is formed inside the light guide slide 18 when viewed from the axial direction of the endoscope body 2.
  • the distal end of the hole 181 opens at the distal end of the light guide slide 18, the proximal end opens at the proximal end of the light guide slide 18, and the shaft connector 17 is inserted through the hole 181.
  • the light guide slide 18 is supported by the shaft connector 17 so as to be movable.
  • through holes 182 are formed at positions corresponding to the respective light guide lumens 21 of the light guide slide 18. The corresponding light guide 5 is inserted and fixed in each through hole 182.
  • a through hole 183 is formed at a position corresponding to the cable lumen 23 of the light guide slide 18. The cable 6 is inserted through the through hole 183.
  • each light guide 5 is moved in the distal direction.
  • each light guide 5 is moved in the proximal direction. Move in the direction.
  • each light guide 5 When the base end of the light guide slide 18 is in contact with the edge facing the base end of each elongated hole 171 of the shaft connector 17, the distal end portion of each light guide 5 is in the light guide lumen 21. That is, it is stored in the endoscope body 2.
  • each light guide 5 is moved in the tip direction, and the tip portion of each light guide 5 protrudes from the side hole 22 to the outside.
  • each light guide 5 is further moved in the tip direction, and the tip portion of each light guide 5 further protrudes from the side hole 22 to the outside.
  • the protrusion of the tip of each light guide 5, that is, the movement of each light guide 5 in the tip direction, is performed until the tip of the light guide slide 18 comes into contact with the edge facing the tip of each long hole 171 of the shaft connector 17. It can be carried out.
  • the maximum value of the protrusion length from the side hole 22 at the tip of each light guide 5 is not particularly limited, but the tip of each light guide 5 is positioned closer to the tip than the tip of the imaging optical system 4. It is preferable to set to. Thereby, an observation site can be illuminated reliably.
  • each light guide 5 is comprised so that it may move integrally, it is not restricted to this, You may comprise so that each light guide 5 may move separately.
  • the number of light guides 5 and light guide lumens 21 is not limited to two, but may be one or three or more.
  • each light guide lumen 21 has an endoscope. It is preferable that they are arranged at equal intervals along the circumferential direction of the main body 2. Needless to say, the arrangement of the light guide lumens 21 may not be equal.
  • the light guide 5 is not limited to a configuration that emits light only from its tip, and may be configured to emit light from at least a part of the side surface of the tip and the tip, for example.
  • the light guide 5 can be configured to emit light from the entire side surface of the tip portion, or can be configured to emit light from a plurality of discontinuous portions of the side surface. .
  • the entire observation site imaged by the image sensor 3 can be illuminated brightly, and the field of view can be widened.
  • the scale can be imaged by the image pickup device 3, thereby making it easier to grasp the position of the diagnosis unit.
  • the front end portion of the light guide 5 that is, the side surface of the front end portion of the optical fiber constituting the light guide 5 is polished or ground, or a plurality of minute A concave portion is formed.
  • the endoscope 1 is set in a retracted state. That is, the light guide slide 18 is moved in the proximal direction until the proximal end of the light guide slide 18 comes into contact with the edge of the shaft connector 17 facing the proximal end of each long hole 171.
  • the distal end portion of the endoscope main body 2, the image pickup device 3 and the imaging optical system 4 (hereinafter, the distal end portion of the endoscope main body 2, the image pickup device 3 and the imaging optical system 4 are representatively represented as an endoscope.
  • the tip of the mirror body 2 is referred to as the vicinity of the observation site. At this time, the distal end portion of the endoscope main body 2 penetrates the living body, but since the outer diameter of the endoscope main body 2 is small, the burden on the examinee and the patient can be reduced.
  • each light guide 5 is moved in the distal direction. Thereby, the front-end
  • the endoscope 1 is placed in the retracted state. That is, the light guide slide 18 is moved in the proximal direction until the proximal end of the light guide slide 18 comes into contact with the edge of the shaft connector 17 facing the proximal end of each long hole 171. Then, in this stored state, the endoscope is removed.
  • the endoscope main body 2 can be reduced in diameter, thereby reducing the burden on the examinee and the patient.
  • each light guide 5 is moved, and the tip portion thereof is arranged at an optimum position, whereby optimum illumination according to the situation can be performed.
  • the moving operation means may be provided with a function of regulating the protruding length from the side hole 22 of the light guide 5.
  • a plurality of projections and depressions are formed on one of the light guide slide 18 and the shaft connector 17 along the axial direction of the endoscope body 2, and a projection inserted into the recess of the projections and depressions is provided on the other Form.
  • the light guide slide 18 is positioned in the axial direction of the endoscope main body 2 with respect to the shaft connector 17, thereby preventing the light guide slide 18 from moving unintentionally. Further, when the light guide slide 18 is moved, the light guide slide 18 moves while the protrusions get over the convex portions of the concaves and convexes, so that a click feeling can be obtained.
  • the click mechanism which is a means for positioning the light guide 5 in the axial direction of the endoscope body 2 by the plurality of projections and depressions, that is, the main means for regulating the protrusion length of the light guide 5 from the side hole 22.
  • the part is composed.
  • the shaft connector 17 or the like may be provided with a scale indicating the protruding length from the side hole 22 of the light guide 5. Thereby, the protrusion length from the side hole 22 of the light guide 5 can be grasped
  • the endoscope body 2 may be provided with other lumens for performing, for example, puncture, administration / aspiration of a liquid such as a drug solution, biopsy, suturing, clipping, and the like.
  • a liquid such as a drug solution, biopsy, suturing, clipping, and the like.
  • the distal end of the lumen opens on the side surface closer to the proximal end side than the imaging element 3 of the endoscope body 2. Thereby, the diameter of the endoscope body 2 can be reduced.
  • FIG. 5 is a cross-sectional view showing a second embodiment of the endoscope of the present invention.
  • the distal end portion of the light guide 5 is curved or bent into a predetermined shape in a natural state where no external force is applied. Therefore, when the distal end portion of the light guide 5 protrudes outside from the side hole 22, it returns to the original curved or bent shape due to its restoring force.
  • the shape of the distal end portion of the light guide 5 in the natural state is not particularly limited as long as it is other than a linear shape.
  • the distal end surface of the light guide 5 is the central axis O of the endoscope body 2.
  • the tip of the light guide 5 is curved so as to be perpendicular to the surface. Thereby, it becomes easy to illuminate the front of the endoscope body 2, the observation site imaged by the image sensor 3 can be reliably illuminated, and a clearer image can be obtained.
  • the light guide 5 is inserted into the light guide lumen 21 so as to be rotatable about its central axis. Thereby, the front-end
  • the light guide 5 cannot be moved in the axial direction of the endoscope body 2 with respect to the light guide slide 18, and is installed so as to be able to rotate around the central axis of the light guide 5. Yes. Accordingly, when the light guide slide 18 is moved in the axial direction of the endoscope main body 2, the light guide 5 moves in the axial direction of the endoscope main body 2 together with the light guide slide 18. Further, a portion of the light guide 5 that protrudes in the proximal direction from the proximal end of the endoscope body 2 can be grasped, and the light guide 5 can be rotated about its central axis.
  • FIG. 6 is a bottom view showing a third embodiment of the endoscope of the present invention
  • FIGS. 7 and 8 are sectional views of the endoscope shown in FIG.
  • the endoscope 1 of the third embodiment shown in FIGS. 6 to 8 can be used as a hysteroscope, a laparoscope, and the like, for example.
  • the distal end portion of the endoscope main body 2 of the endoscope 1 has flexibility. That is, a bendable portion is provided at the distal end portion of the endoscope body 2. Thereby, the front-end
  • the proximal end portion of the endoscope main body 2 is composed of a linear hard member. Thereby, it becomes difficult to bend
  • proximal end portion of the endoscope body 2 may be formed of a hard member, and the portion on the distal end side of the proximal end portion may have flexibility. It may have flexibility over it.
  • the number of the light guides 5, the light guide lumens 21 and the side holes 22 is one each.
  • a pulling thread lumen (linear body lumen) 24 is formed in the endoscope body 2.
  • the retractable thread lumen 24 is formed from the proximal end to the distal end of the endoscope body 2. That is, the distal end portion of the retractable thread lumen 24 is located at the distal end portion of the endoscope main body 2, and the proximal end is open to the proximal end of the endoscope main body 2. Further, the retractable thread lumen 24 and the light guide lumen 21 are disposed so as to face each other via the central axis O of the endoscope body 2. The pulling thread lumen 24 and the light guide lumen 21 do not have to face each other.
  • a long hole 25 is formed at the distal end of the endoscope main body 2 so as to open to the side surface of the endoscope main body 2 and communicate with the traction thread lumen 24.
  • the long hole 25 is formed on the base end side with respect to the imaging element 3.
  • the long hole 25 is formed along the axial direction of the endoscope body 2.
  • the long hole 25 and the side hole 22 are arranged so as to face each other with the central axis O when viewed from the axial direction of the endoscope body 2.
  • the long hole 25 and the side hole 22 do not have to face each other.
  • the endoscope 1 has a pulling thread (linear body) 11 that pulls the distal end portion of the endoscope body 2 as a bending means for bending the distal end portion of the endoscope body 2.
  • the traction thread 191 is inserted into the traction thread lumen 24 so as to be movable in the axial direction of the endoscope body 2. Further, the distal end portion of the traction thread 191 is fixed to the distal end portion of the endoscope body 2, and the proximal end side is inserted through the through hole 182 of the light guide slide 18, and the traction thread lumen 24 extends outward from the proximal end. Has been pulled out.
  • the light guide 5 is protruded to the outside from the side hole 22 before or after the distal end portion of the endoscope body 2 is bent.
  • holding means for holding the state where the traction thread 191 is pulled and moved in the proximal direction.
  • FIG. 9 is a cross-sectional view showing a fourth embodiment of the endoscope of the present invention.
  • the endoscope 1 of 4th Embodiment shown in FIG. 9 is comprised so that the light source of a control and a light source device can be light-emitted automatically besides manual operation.
  • the endoscope 1 has a touch sensor 192 as detection means for detecting that the tip portion of the light guide 5 protrudes outside from the side hole 22.
  • the base end of the wiring (not shown) of the touch sensor 192 is connected to the connector 72.
  • a signal is sent from the touch sensor 192 to the control / light source device. Can be sent.
  • the touch sensor 192 is installed at a predetermined portion of the shaft connector 17, and when the light guide slide 18 moves to a position where the front end portion of the light guide 5 protrudes outside from the side hole 22, The guide slide 18 is configured to contact.
  • the tip of the light guide 5 When the tip of the light guide 5 protrudes outside from the side hole 22 and the light guide slide 18 contacts the touch sensor 192, the tip of the light guide 5 extends from the side hole 22 to the control / light source device. A signal indicating that it has protruded is transmitted. When receiving the signal, the control unit of the control / light source device causes the light source to emit light. Thereby, light is emitted from the tip of the light guide 5 and a predetermined part is illuminated. Thus, according to this endoscope 1, it is not necessary to manually perform the operation of causing the light source of the control / light source device to emit light, and the operation can be simplified.
  • a control unit is configured to control the light source to emit light.
  • FIG. 10 is a cross-sectional view showing a fifth embodiment of the endoscope of the present invention.
  • the tubes 55 are inserted into the respective light guide lumens 21 so as to be movable in the axial direction of the endoscope body 2.
  • Each light guide 5 is inserted into the tube 55 so as to be movable in the axial direction of the endoscope body 2. Thereby, damage and breakage of each light guide 5 can be prevented.
  • FIG. 11A and 11B are views showing a sixth embodiment of the endoscope of the present invention, in which FIG. 11A is a plan view and FIG. 11B is a side view.
  • 12 is a cross-sectional view of the endoscope shown in FIG. 11
  • FIG. 13 is a cross-sectional view showing the operation portion taken along line AA in FIG. 12
  • FIG. 14 is a cross-sectional view taken along line BB in FIG.
  • FIG. 15 to FIG. 17 are sectional views of the endoscope shown in FIG.
  • the left side in FIGS. 11, 12, and 15 to 17 is referred to as “tip”, the right side is “base”, the upper side is “up”, and the lower side is “lower”.
  • the endoscope 1 is installed at a long endoscope body 2 to be inserted into the lumen of a living body, and at the distal end of the endoscope body 2, and an observation site is arranged.
  • a single light guide lumen 21 is formed in the endoscope body 2. Further, the light guide lumen 21 is eccentric from the central axis O of the endoscope body 2 in the illustrated configuration.
  • the light guide 5 is inserted in the light guide lumen 21 so as to be movable in the axial direction of the endoscope main body 2 and rotatable about the central axis of the light guide 5.
  • the tip of the light guide 5 is bent or bent into a predetermined shape in a natural state where no external force is applied. Therefore, when the front end portion of the light guide 5 protrudes to the outside from a side hole 22 described later, it returns to the original curved or bent shape due to its restoring force.
  • a marker (not shown) that can be detected by ultrasonic waves or X-rays, that is, an ultrasonic marker or an X-ray marker, is provided at the tip of the light guide 5.
  • an ultrasonic marker for example, an ultrasonic probe can be used and an operation can be performed while confirming the position of the tip portion of the light guide 5 by viewing the obtained image.
  • the X-ray marker is provided, the operation can be performed while confirming the position of the tip portion of the light guide 5 under X-ray fluoroscopy.
  • the ultrasonic marker includes, for example, a material using a metal material such as stainless steel, aluminum or aluminum alloy, titanium or titanium alloy, and a plurality of minute irregularities on the surface.
  • the X-ray marker is made of an X-ray opaque material, that is, a material having X-ray contrast properties.
  • the radiopaque material include noble metals such as gold, platinum, and tungsten, or alloys containing them, such as platinum-iridium alloys.
  • the light guide 5 is not limited to a configuration that emits light only from its tip, and may be configured to emit light from at least a part of the side surface of the tip and the tip, for example.
  • the light guide 5 can be configured to emit light from the entire side surface of the tip portion, or can be configured to emit light from a plurality of discontinuous portions of the side surface. .
  • the entire observation site imaged by the image sensor 3 can be illuminated brightly, and the field of view can be widened.
  • the scale can be imaged by the image pickup device 3, thereby making it easier to grasp the position of the diagnosis unit.
  • the front end portion of the light guide 5 that is, the side surface of the front end portion of the optical fiber constituting the light guide 5 is polished or ground, or a plurality of minute A concave portion is formed.
  • a reinforcing layer 51 is provided on the outer peripheral surface of the portion exposed to the outside of the light guide 5 to cover the outer peripheral surface. Specifically, the reinforcing layer 51 is provided at a portion and a base end portion of the distal end portion of the light guide 5 excluding a portion that emits light. Thereby, the site
  • Examples of the reinforcing layer 51 include a coil formed by spirally winding a wire around the outer peripheral surface of the light guide 5, and a coating layer that covers the outer peripheral surface of the light guide 5.
  • the constituent material of the coil is not particularly limited, but a metal material is preferable.
  • the metal material constituting the coil include stainless steel, superelastic alloy, cobalt-based alloy, noble metals such as gold, platinum, and tungsten, or alloys containing them, such as platinum-iridium alloy.
  • the coil when the coil is made of a radiopaque material such as a noble metal, the coil also functions as an X-ray marker.
  • the constituent material of the coating layer is not particularly limited, but a resin material is preferable.
  • the resin material constituting the coating layer include polyurethane.
  • a side hole (hole) 22 is formed in the distal end portion of the endoscope body 2 so as to open to the side surface of the endoscope body 2 and communicate with the distal end portion of the light guide lumen 21.
  • the side hole 22 is formed closer to the base end side than the image sensor 3.
  • the endoscope 1 moves the light guide 5 in the axial direction of the endoscope body 2 so that the distal end portion of the light guide 5 protrudes from the side hole 22 (hereinafter also referred to as “projection state”). ) (See FIGS. 15 to 17) and a state of being housed in the endoscope body 2 (hereinafter, also referred to as “retracted state”) (see FIGS. 11 and 12).
  • an operation unit 8 is provided as an operation means for moving the light guide 5 in the axial direction of the endoscope body 2 and rotating the light guide 5 about its axis. Is installed.
  • the operation unit 8 includes a main body unit 9 and a moving unit 11 installed so as to be movable in the axial direction with respect to the main body unit 9.
  • the main body 9 has a cylindrical shape. That is, the main body portion 9 is formed with through holes 93 that extend in the axial direction and open to the distal end and the proximal end, respectively.
  • a stopper 91 is provided at the distal end of the main body 9, and a stopper 92 is provided at the proximal end.
  • the stopper 91 is provided with a side port 911, and a through hole 912 of the side port 911 is open to the tip of the stopper 91.
  • the proximal end of the endoscope body 2 is fixed to the distal end of the stopper 91, the through hole 912 communicates with the light guide lumen 21, and the through hole 93 communicates with the cable lumen 23. ing.
  • the cable 6 is inserted through the through hole 93, and the light guide 5 is inserted through the through hole 912.
  • the moving unit 11 can move between a position where the base 12 is in contact with the stopper 91 and a position where the base 12 is in contact with the stopper 92.
  • the moving part 11 is rotatable about the central axis of the light guide 5 with respect to the base 12 that is installed so as to be movable in the axial direction of the endoscope main body 2 with respect to the main body 9. And a rotational operation member 13 that is detachably installed, and a cap 14 that is detachably installed at the tip of the rotational operation member 13.
  • the base 12 is formed with a through-hole 121 extending in the axial direction and opening to the tip and the base.
  • the main body 9 is inserted through the through hole 121.
  • the base 12 has support portions 122 and 123 protruding upward at the distal end portion and the proximal end portion, respectively. Grooves 124 and 125 are formed in the support portions 122 and 123, respectively.
  • Rotating operation member 13 has a cylindrical shape. That is, the rotation operation member 13 is formed with a through hole 137 that extends in the axial direction and opens at the distal end and the proximal end.
  • the rotation operation member 13 includes a large diameter part 131, a reduced diameter part 132, a large diameter part 133, a reduced diameter part 134, and a large diameter part 135 that are sequentially arranged from the distal end side toward the proximal end side. ing.
  • the reduced diameter portions 132 and 134 of the rotating operation member 13 are inserted into the grooves 124 and 125 of the base 12, respectively, and are rotatably supported. Since the rotation operation member 13 is detachable with respect to the base 12, the rotation operation member 13 can be removed from the base 12 and operated, and there is an advantage that it is easy to operate.
  • each rib 136 constitutes an anti-slip means.
  • a through hole 141 is formed at a position corresponding to the through hole 137 of the cap 14.
  • the light guide 5 is inserted through the through holes 141 and 137.
  • a packing made of silicone rubber or the like may be installed in the through hole 137. Thereby, the kink of the light guide 5 can be prevented.
  • a male screw 1311 is formed on the outer peripheral surface of the base end portion of the large diameter portion 131.
  • part of the front end side rather than the external thread 1311 of the large diameter part 131 comprises the taper surface 1312 in which the outer diameter reduces gradually toward a front end direction.
  • a female screw 142 that is screwed with the male screw 1311 of the large-diameter portion 131 is formed.
  • the inner peripheral surface of the cap 14 on the tip side of the female screw 142 forms a tapered surface 143 whose inner diameter gradually decreases in the tip direction.
  • the cap 14 When the cap 14 is rotated in a predetermined direction, the cap 14 moves in the proximal direction, the large diameter portion 131 is compressed in the radial direction from the tapered surface 143, and the inner diameter of the through hole 137 of the large diameter portion 131 decreases.
  • the light guide 5 is held by the large diameter portion 131. Thereby, the light guide 5 is displaced in the axial direction integrally with the moving part 11. That is, when the moving unit 11 is moved in the axial direction, the light guide 5 moves in the axial direction together with the moving unit 11.
  • the turning operation member 13 When the turning operation member 13 is turned around the axis, the light guide 5 is turned around the axis together with the turning operation member 13.
  • the cap 14 when the cap 14 is rotated in the opposite direction, the cap 14 moves in the distal direction, and the compression of the large diameter portion 131 in the radial direction by the tapered surface 143 is released, so that the large diameter portion 131 has the original shape. And the inner diameter of the through-hole 137 increases, and the holding of the light guide 5 by the large-diameter portion 131 is released. Thereby, the light guide 5 can be moved in the axial direction with respect to the rotation operation member 13. Thus, the light guide 5 can be further protruded from the side hole 22 when the protrusion length of the light guide 5 from the side hole 22 is insufficient only by the movement of the moving portion 11.
  • the light guide 5 is detachably connected to the rotation operation member 13.
  • the moving unit 11 of the operation unit 8 described above When the moving unit 11 of the operation unit 8 described above is moved in the distal direction, the light guide 5 is moved in the distal direction together with the moving unit 11, and when the moving unit 11 is moved in the proximal direction, the moving unit 11 is moved. 11 and the light guide 5 move in the proximal direction.
  • the distal end portion of the light guide 5 is inside the light guide lumen 21, that is, the endoscope body 2. It is stored inside.
  • the light guide 5 When the moving part 11 is further moved in the tip direction, the light guide 5 is further moved in the tip direction, and the tip part of the light guide 5 further protrudes to the outside from the side hole 22.
  • the protrusion of the front end portion of the light guide 5, that is, the movement of the light guide 5 in the front end direction can be performed until the moving portion 11 contacts the stopper 91 as shown in FIG.
  • the endoscope 1 is configured such that the distal end of the light guide 5 can be positioned closer to the distal end side than the distal end of the imaging optical system 4. Then, by moving the moving unit 11 in the axial direction, the light guide 5 moves in the axial direction, and the position of the tip portion of the light guide 5 in the axial direction can be changed.
  • the tip portion of the light guide 5 is curved or bent, and as shown in FIG. 17, the light guide 5 is rotated about the axis by rotating the rotation operation member 13 about the axis. It rotates and can change the direction of the front-end
  • the distal end portion of the light guide 5 can be arranged at an optimal position, for example, the distal end portion of the light guide 5 is brought close to the observation site.
  • the observation site can be reliably illuminated. That is, it is possible to brightly illuminate the observation site while reducing the diameter of the endoscope main body 2 by reducing the size of the imaging optical system 4 and the imaging element 3, reducing the diameter of the light guide 5, and the like.
  • the optimal illumination according to a condition can be performed.
  • the tip of the light guide 5 can be moved in a desired direction
  • the light guide 5 can be used as a guide wire. That is, first, the light guide 5 is moved in the distal direction, then the endoscope body 2 is moved in the distal direction along the light guide 5, and this is repeated, whereby the endoscope body 2 is moved to the light guide 5. Can be moved to a desired position.
  • the maximum value of the protrusion length of the light guide 5 toward the front end side relative to the front end of the imaging optical system 4 is not particularly limited, but is preferably set within a range of about 0 to 200 mm, and preferably 0 to 100 mm. More preferably, it is set within a range. Thereby, an observation site can be illuminated reliably.
  • the endoscope main body 2 can be reduced in diameter, thereby reducing the burden on the examinee and the patient.
  • the light guide 5 is moved, and the tip portion thereof is arranged at the optimum position, so that the optimum illumination according to the situation can be performed.
  • the light guide 5 can also be used as a guide wire.
  • the moving operation means may be provided with a function of regulating the protruding length from the side hole 22 of the light guide 5.
  • a plurality of irregularities are formed on one of the main body 9 and the base 12 of the operation unit 8 along the axial direction of the endoscope main body 2 and the other is inserted into the concave / convex recesses. Protrusions are formed.
  • the movement part 11 is positioned with respect to the main-body part 9 in the axial direction of the endoscope main body 2, and this can prevent the movement part 11 from moving unintentionally.
  • a click feeling is acquired because the moving part 11 moves, while a protrusion gets over the convex part of each unevenness
  • the click mechanism which is a means for positioning the moving part 11 in the axial direction of the endoscope body 2 by the plurality of projections and depressions, that is, the main means for regulating the protruding length from the side hole 22 of the light guide 5.
  • the part is composed.
  • the main body 9 or the like may be provided with a scale indicating the protruding length from the side hole 22 of the light guide 5 or the protruding length from the tip of the imaging optical system 4.
  • a scale indicating the protruding length from the side hole 22 of the light guide 5 or the protruding length from the tip of the imaging optical system 4.
  • the distal end portion of the light guide 5 is curved or bent into a predetermined shape in a natural state where no external force is applied.
  • the present invention is not limited thereto, and may be, for example, linear. Good.
  • the number of light guides 5 and light guide lumens 21 is not limited to one, and may be two or more.
  • each light guide 5 may be configured to move integrally, or each light guide 5 may be configured to move separately.
  • each light guide 5 may be comprised so that it may rotate integrally, and each light guide 5 may be comprised so that it may rotate separately.
  • each light guide lumen 21 is arranged around the endoscope main body 2. It is preferable to arrange at equal intervals along the direction. Needless to say, the arrangement of the light guide lumens 21 may not be equal.
  • the endoscope body 2 may be provided with other lumens for performing, for example, puncture, administration / aspiration of a liquid such as a drug solution, biopsy, suturing, clipping, and the like.
  • a liquid such as a drug solution, biopsy, suturing, clipping, and the like.
  • the distal end of the lumen opens on the side surface closer to the proximal end side than the imaging element 3 of the endoscope body 2. Thereby, the diameter of the endoscope body 2 can be reduced.
  • a predetermined lumen of the lumens other than the light guide lumen 21 and the light guide lumen 21 may merge at the tip portion thereof.
  • FIG. 18 is a cross-sectional view showing the distal end portion in the seventh embodiment of the endoscope of the present invention.
  • the seventh embodiment will be described with a focus on differences from the above-described sixth embodiment, and description of similar matters will be omitted.
  • the imaging device 3 and the imaging optical system 4 are installed at the distal end portion of the endoscope body 2, and a hole portion 26 is provided instead of the side hole 22. It is formed on the distal end surface of the endoscope body 2.
  • the hole portion 26 communicates with the distal end portion of the light guide lumen 21, and the distal end portion of the light guide 5 protrudes from the hole portion 26.
  • the image pickup device 3 and the image pickup optical system 4 are arranged at a position decentered from the center of the endoscope body 2 when viewed from the axial direction of the endoscope body 2.
  • the hole 26 is disposed on the side opposite to the side on which the imaging element 3 and the imaging optical system 4 are biased when viewed from the axial direction of the endoscope body 2.
  • FIG. 19 is a plan view showing a distal end portion of an endoscope according to an eighth embodiment of the present invention
  • FIG. 20 is a perspective view showing a proximal end portion of a connection tube of the endoscope shown in FIG. 19
  • FIG. 19 is a cross-sectional view showing the endoscope body taken along line CC in FIG. 19
  • FIG. 22 is a cross-sectional view showing the endoscope body taken along line DD in FIG. 19
  • FIG. 24 is a cross-sectional view showing the endoscope body taken along line EE
  • FIG. 24 is a cross-sectional view showing the endoscope body, connection tube, light guide, and treatment tube taken along line EE in FIG.
  • FIG. 20 is a cross-sectional view showing a proximal end portion of the endoscope shown in FIG. 19.
  • the endoscope 1 of the eighth embodiment shown in FIGS. 19 to 25 further includes a connection tube 15, and the endoscope body 2 further includes a tube lumen as a lumen other than the light guide lumen 21. (Treatment lumen) 27 is provided.
  • the tube lumen 27 is formed in the same manner as the light guide lumen 21 and is arranged in parallel to the light guide lumen 21. That is, the distal end portion of the tube lumen 27 is located at the distal end portion of the endoscope body 2, and the proximal end is open to the proximal end of the endoscope body 2. The distal end portion of the tube lumen 27 communicates with the side hole 22. Further, the tube lumen 27 is eccentric from the central axis O of the endoscope body 2. Further, the tube lumen 27 and the light guide lumen 21 communicate with each other on the side thereof.
  • the connecting tube 15 is inserted into the tube lumen 27 and the light guide lumen 21 so as to be movable in the axial direction of the endoscope body 2.
  • the proximal end portion of the connection tube 15 protrudes from the side port 911 of the stopper 91 of the operation portion 8 so that the connection tube 15 can be moved and operated by gripping the proximal end portion of the connection tube 15. Yes.
  • the endoscope 1 is housed in the endoscope main body 2 in a state in which the distal end portion of the connection tube 15 protrudes from the side hole 22 by moving the connection tube 15 in the axial direction of the endoscope main body 2. It is possible to take the state that was made.
  • the distal end of the connection tube 15 is configured to be positioned on the distal end side with respect to the distal end of the imaging optical system 4.
  • the connection tube 15 includes a light guide lumen (first lumen) 151 having a shape corresponding to the light guide lumen 21 and a tube lumen (second lumen) having a shape corresponding to the tube lumen 27. 152.
  • the light guide lumen 151 and the tube lumen 152 communicate with each other on the side thereof.
  • the light guide 5 is inserted so as to be movable in the axial direction of the endoscope body 2 and rotatable about the central axis of the light guide 5. .
  • the treatment tube 16 is inserted into the tube lumen 152 so as to be movable in the axial direction of the endoscope body 2.
  • the treatment tube 16 may not be able to move in the axial direction of the endoscope body 2 with respect to the connection tube 15. Specific examples thereof include a method of bonding the connection tube 15 to the treatment tube 16 with an adhesive, a method of fusing, and the like. Further, the light guide lumen 151 and the tube lumen 152 may not communicate with each other on the side thereof.
  • the tip of the connection tube 15 is arranged in the vicinity of the target site while illuminating the target site with the light emitted from the light guide 5. Then, the treatment tube 16 is moved in the distal direction, and the distal end portion of the treatment tube 16 is further brought closer to the target site. At this time, since the light guide lumen 151 and the tube lumen 152 are formed in parallel in the connection tube 15, each operation can be performed while illuminating the target portion with the light guide 5.
  • the present invention is not limited to this, and the configuration of each part is replaced with an arbitrary configuration having the same function. can do.
  • any other component may be added to the present invention.
  • the present invention may be a combination of any two or more configurations of the above embodiments.
  • the light guide is movable, and the distal end portion of the light guide is stored in the endoscope main body on the proximal end side with respect to the image sensor except during use. Since it can be made to project from the side hole of the endoscope main body, the diameter of the endoscope main body can be reduced. Thereby, the burden on the examinee and the patient can be reduced.

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  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
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  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne un endoscope (1) qui comprend : un corps d'endoscope allongé (2) ; un composant d'imagerie (3) disposé à la pointe du corps d'endoscope (2) ; un système optique d'imagerie (4) disposé à la pointe du composant d'imagerie (3) ; et deux guides optiques (5). Deux lumières de guide optique (21) sont formées dans le corps d'endoscope (2). Chaque guide optique (5) est inséré dans une lumière de guide optique (21) de façon déplaçable dans la direction axiale. De plus, deux trous latéraux (22) qui s'ouvrent à la surface latérale du corps d'endoscope (2) et qui sont interconnectés avec les pointes des deux lumières de guide optique (5) sont formés à la pointe du corps d'endoscope (2). Chaque trou latéral (22) est formé sur le côté de base par rapport au composant d'imagerie (3). En conséquence, en amenant les guides optiques (5) à se déplacer dans la direction axiale, l'endoscope (1) peut se mettre dans un état dans lequel les pointes des guides optiques (5) sont saillantes depuis les trous latéraux (22) et un état dans lequel les pointes sont logées dans le corps de l'endoscope (2).
PCT/JP2011/076704 2010-11-24 2011-11-18 Endoscope WO2012070504A1 (fr)

Applications Claiming Priority (4)

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JP2010-261008 2010-11-24
JP2010261008A JP2012110468A (ja) 2010-11-24 2010-11-24 内視鏡
JP2010-293144 2010-12-28
JP2010293144A JP5756629B2 (ja) 2010-12-28 2010-12-28 内視鏡

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3011889A4 (fr) * 2013-06-20 2017-03-08 Olympus Corporation Endoscope, surtube et système d'endoscope
CN108577788A (zh) * 2014-02-27 2018-09-28 松下知识产权经营株式会社 内窥镜及内窥镜的制造方法
CN109068969A (zh) * 2016-03-10 2018-12-21 比奥普-医疗有限公司 诊断组织的装置

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JPS61126522A (ja) * 1984-11-26 1986-06-14 Olympus Optical Co Ltd 内視鏡
JPH05115492A (ja) * 1991-04-22 1993-05-14 Olympus Optical Co Ltd 内視鏡用高周波切開具
JPH1024011A (ja) * 1996-07-11 1998-01-27 Olympus Optical Co Ltd 内視鏡用照明プローブ
JPH10258022A (ja) * 1997-01-20 1998-09-29 Suzuki Motor Corp ハイブリッドオペレーションシステム
JP2007151887A (ja) * 2005-12-06 2007-06-21 Olympus Medical Systems Corp 内視鏡湾曲部及びその製造方法、並びに、内視鏡
JP2008029597A (ja) * 2006-07-28 2008-02-14 Olympus Corp 内視鏡装置
JP2010082271A (ja) * 2008-09-30 2010-04-15 Fujifilm Corp 凹凸検出装置、プログラム、及び方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61126522A (ja) * 1984-11-26 1986-06-14 Olympus Optical Co Ltd 内視鏡
JPH05115492A (ja) * 1991-04-22 1993-05-14 Olympus Optical Co Ltd 内視鏡用高周波切開具
JPH1024011A (ja) * 1996-07-11 1998-01-27 Olympus Optical Co Ltd 内視鏡用照明プローブ
JPH10258022A (ja) * 1997-01-20 1998-09-29 Suzuki Motor Corp ハイブリッドオペレーションシステム
JP2007151887A (ja) * 2005-12-06 2007-06-21 Olympus Medical Systems Corp 内視鏡湾曲部及びその製造方法、並びに、内視鏡
JP2008029597A (ja) * 2006-07-28 2008-02-14 Olympus Corp 内視鏡装置
JP2010082271A (ja) * 2008-09-30 2010-04-15 Fujifilm Corp 凹凸検出装置、プログラム、及び方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3011889A4 (fr) * 2013-06-20 2017-03-08 Olympus Corporation Endoscope, surtube et système d'endoscope
CN108577788A (zh) * 2014-02-27 2018-09-28 松下知识产权经营株式会社 内窥镜及内窥镜的制造方法
CN109068969A (zh) * 2016-03-10 2018-12-21 比奥普-医疗有限公司 诊断组织的装置

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