WO2016111042A1 - 内視鏡操作機構および内視鏡 - Google Patents
内視鏡操作機構および内視鏡 Download PDFInfo
- Publication number
- WO2016111042A1 WO2016111042A1 PCT/JP2015/074961 JP2015074961W WO2016111042A1 WO 2016111042 A1 WO2016111042 A1 WO 2016111042A1 JP 2015074961 W JP2015074961 W JP 2015074961W WO 2016111042 A1 WO2016111042 A1 WO 2016111042A1
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- WIPO (PCT)
- Prior art keywords
- endoscope
- angle
- operation member
- dial
- lever
- Prior art date
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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
- A61B1/005—Flexible endoscopes
-
- 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
-
- 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
- A61B1/00066—Proximal part of endoscope body, e.g. handles
-
- 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
-
- 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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
Definitions
- the present invention relates to an endoscope operation mechanism and an endoscope including a bending operation unit that performs a bending operation of a bending unit provided in an insertion unit of an endoscope.
- endoscopes have a flexible insertion portion that is inserted into a subject to observe and treat a lesioned portion in the subject, for example, and the insertion portion is connected to the UD (vertical) direction and RL ( And an operation device that performs an operation for bending in the (left-right) direction.
- the operating device is provided with a UD angle knob for operating in the UD direction and an RL angle knob for operating in the RL direction.
- the endoscope operator When observing or treating a lesioned part, the endoscope operator operates the UD angle knob and the RL angle knob to bend the bending part provided in the insertion part in the UD direction and the RL direction.
- International Publication WO2013 / 129494 discloses an insertion device provided with a knob for performing an up / down (UD) bending operation of an insertion portion and an RL operation dial for bending the insertion portion in a left / right (RL) direction.
- An endoscope is disclosed.
- the rotation of the RL operation dial is used to turn and instruct the bending operation of the insertion portion within an arbitrary rotation angle range of 0 ° to ⁇ 90 °.
- the bending state of the bending portion can be held by holding the moving state.
- the conventional endoscope has an RL operation dial within a rotation angle range including an initial position (neutral position in the RL dial) when the RL operation dial is rotated beyond an arbitrary rotation angle set.
- a technology of a return function for returning the device is disclosed.
- the present invention has been made in view of the above circumstances, and the object of the present invention is to return the endoscope function to the initial position when the operator releases the operator operating the endoscope function. It is an object to provide an endoscope operation mechanism and an endoscope that can easily switch between a state and a state in which the operation of an endoscope function is maintained.
- an endoscope operation mechanism is an endoscope operation mechanism disposed in an operation unit provided on the proximal end side of an insertion unit in an endoscope.
- a first operating member for operating the function of the endoscope by being operated and displaced by an operator, an initial state return mechanism for applying a biasing force to the operating member to return to the initial state, and an operation
- the state in which the endoscope function returns to the initial position when the operator releases the operator operating the endoscope function and the state in which the operation of the endoscope function is maintained can be easily performed. It is possible to provide an endoscope operation mechanism and an endoscope that can be switched to each other.
- FIG. 1 is an overall configuration diagram showing an endoscope apparatus according to a first embodiment of the present invention.
- Side view showing the configuration of the operation unit Sectional drawing which shows the structure of the same RL angle operation part Sectional drawing which shows the 2nd cam, cam guide, and sensor rotating shaft along the IV-IV line of FIG.
- action of an RL angle operation part similarly
- the side view which shows the operation part in which the RL angle operation part was provided similarly
- action of an RL angle operation part similarly Sectional drawing which shows the structure of the RL angle operation part of a 1st modification same as the above Sectional drawing which shows the structure of the RL angle operation part of a 2nd modification same as the above Sectional drawing which shows the structure of the RL angle operation part of a 3rd modification same as the above Sectional drawing which shows the structure of the RL angle operation part of a 4th modification same as the above Sectional drawing which shows the structure of the RL angle operation part of 4th Embodiment which concerns on this invention.
- FIG. 1 is an overall configuration diagram showing an endoscope apparatus
- FIG. 2 is a side view showing the configuration of an operation unit
- FIG. 3 is an RL angle operation unit
- 4 is a cross-sectional view showing the second cam, the cam guide, and the sensor rotation shaft along the line IV-IV in FIG. 3
- FIG. 5 is a plan view showing the operating range of the RL engagement lever.
- 6 is a cross-sectional view for explaining the operation of the RL angle operation portion
- FIG. 7 is a front view of the operation portion for explaining the operation range of the RL engagement lever
- FIG. 8 is for explaining the operation range of the RL engagement lever.
- FIG. 9 is a cross-sectional view showing the configuration of the modified RL angle operating unit
- FIG. 10 is a front view of the operating unit for explaining the operating range of the modified RL engagement lever.
- the endoscope apparatus 1 includes an endoscope 2, a control device 3, a light source device 4, an image photographing device 5, a water feeding device 6, a keyboard 7, and a monitor 8. .
- the control device 3 controls lighting of the light source device 4 and also controls water supply to the endoscope 2 by the water supply device 6, and performs image processing on the image of the subject imaged through the endoscope 2 by the image capturing device 5. Display on the monitor 8.
- the endoscope 2 includes a universal cord 21, an operation unit 22 that is an operation device, and an insertion unit 23.
- the endoscope 2 is connected to the control device 3, the light source device 4, the image capturing device 5, and the water supply device 6 through a universal cord 21.
- the operation unit 22 is different from the vertical direction (UD direction) and the first direction in the observation image with the bending portion 23a of the insertion unit 23 as the first direction in response to the operation of the operator who is a doctor.
- the operation is performed in the left-right direction (RL direction) in the observation image as the second direction orthogonal to each other.
- the insertion portion 23 is inserted into the subject, is formed of a flexible member, and receives the operation of the bending operation means provided in the operation portion 22 so that the bending portion 23a of the insertion portion 23 is a UD in the observation image. Curve in the direction and RL direction.
- the operation part 22 of the endoscope 2 is configured by integrally connecting an operation part main body 24 and a grip 25 as a grip part.
- the operation unit 22 is configured such that, in a state where an operator who is a user (doctor) holds the grip 25 of the operation unit 22 with one hand, the operation unit main body 24 is the upper side, and the grip 25 and the insertion unit 23 are the lower side. To do.
- the operation unit main body 24 can be expressed as the proximal end side
- the insertion unit 23 can be expressed as the distal end side.
- the universal cord 21 shown in FIG. 1 is connected to the operation part main body 24 via the folding part 21a.
- An insertion portion 23 is connected to the grip 25 so as to be continuously provided.
- the operation unit main body 24 and the grip 25 are gradually shaped so as to fit in the palm of one hand when the operator mainly holds the grip 25 with one hand, for example, the thickness gradually increases from the operation unit main body 24 toward the grip 25. It is formed to be smaller.
- the grip 25 has a substantially conical shape, and is formed so that the diameter gradually decreases from the lower end of the operation unit main body 24 toward the insertion unit 23 connected via the bend preventing unit 23b.
- a first angle mechanism as a UD bending operation means for bending the bending portion 23a of the insertion unit 23 in the vertical direction (UD direction) in the observation image by a manual rotation operation by the operator.
- UD angle knob 26 and a UD knob engagement lever as a UD side engagement portion for fixing / releasing the bending angle of the bending portion 23a of the insertion portion 23 in the UD bending direction by fixing the rotational position of the UD angle knob 26 28 are provided.
- the UD angle knob 26 is rotated by, for example, a thumb and an index finger, or a thumb and a middle finger depending on the operator while the operator mainly holds the grip 25 in the palm of one hand.
- the UD knob engagement lever 28 is operated by, for example, the thumb of a hand holding the grip by the operator, the thumb and / or index finger, or the thumb and / or index finger of the hand not holding the grip.
- the UD knob engagement lever 28 can be fixed to the bending angle of the bending portion 23a by tilting it to the right side as viewed in FIG.
- RL bending operation means for bending the bending portion 23a of the insertion portion 23 in the left-right direction (RL direction) in the observation image, on the other side surface intersecting with one side surface of the operation portion main body 24 provided with the UD angle knob 26.
- An RL angle operation unit 40 is provided as an endoscope operation mechanism.
- the RL angle operation unit 40 as the endoscope operation mechanism is operated in a state where the operator mainly holds the grip 25 in the palm of one hand, for example, with an index finger or a middle finger depending on the operator. . That is, the RL angle operation unit 40 is operated by a finger other than the operator's thumb.
- the operation unit main body 24 is provided with an RL drive device which is a drive source (not shown).
- the RL driving device includes a control unit (not shown), and automatically drives the bending portion 23a of the insertion unit 23, which is an endoscope function here, by driving a driving motor (not shown) provided in the operation unit main body 24. Curve in the direction.
- the switch 29, the suction button 30, and the suction button 30 are arranged on the side surface opposite to the UD angle knob 26 side on which the RL angle operation unit 40 of the operation unit body 24 is provided so as to be arranged along the longitudinal direction of the RL angle operation unit 40.
- An air / water button 31 is also provided.
- the switch 29, the suction button 30, and the air / water supply button 31 are arranged in a line in the vertical direction of the operation unit body 24 on the side of the RL angle operation unit 40.
- a switch 32 is also provided on the side surface of the operation unit body 24 on the opposite side.
- the switch 29, the suction button 30 and the air / water supply button 31 are respectively located on the side of the UD angle knob 26, like the RL angle operation unit 40, and the operator mainly holds the grip 25 in the palm of one hand. In such a state, it is provided in a range that can be operated by, for example, an index finger or a middle finger.
- the RL angle operation unit 40 is an RL operation element below the lower surface of the case body 41 fixed to the operation unit main body 24, and an RL operation dial 42 as a first operation member is shown in FIG. It is provided so as to be rotatable around an inner rotation axis X.
- the RL operation dial 42 is extended so that the dial rotation shaft 42a protrudes from the upper part.
- the dial rotation shaft 42 a is rotatably accommodated in the case body 41 in a state where the dial rotation shaft 42 a is watertightly held by an O-ring 41 a provided on the lower surface portion of the case body 41.
- the dial rotation shaft 42a is connected internally from the lower side of the initial position return mechanism 44 provided in the case body 41.
- a sensor rotation shaft 45a provided through a potentiometer 45 that is a rotation detection sensor fixed in the case body 41 is internally connected from the upper side.
- the initial position return mechanism 44 transmits the turning force of the dial turning shaft 42a to the sensor turning shaft 45a, and the turning angle of the dial turning shaft 42a and the sensor turning shaft 45a against the turning force. Gives the turning power to return (return) to the set position.
- the detailed configuration of the initial position return mechanism 44 is well known and will not be described.
- the potentiometer 45 outputs an electrical signal based on the rotation angle (amount) of the sensor rotation shaft 45a to the RL driving device. That is, in the RL angle operation unit 40 of the present embodiment, when the RL operation dial 42 is rotated, the dial rotation shaft 42 a is rotated, and the sensor rotation of the potentiometer 45 is performed via the initial position return mechanism 44. The moving shaft 45a rotates.
- the potentiometer 45 detects the rotation angle (amount) of the sensor rotation shaft 45a and outputs an electrical signal to the RL drive device. An electric signal is output to the RL driving device.
- a control unit (not shown) drives and controls the RL driving motor in accordance with the amount of electricity of the electric signal input from the potentiometer 45 to bend the bending portion 23a of the insertion portion 23 in the RL direction. .
- the RL operation dial 42 can adjust the amount of bending in the RL direction of the bending portion 23a of the insertion portion 23 according to the amount of rotation.
- the bending portion of the insertion unit 23 is moved.
- 23a is bent in the R direction and rotated counterclockwise, the bending portion 23a of the insertion portion 23 is bent in the L direction.
- the RL angle operation unit 40 fixes the rotation position of the RL operation dial 42 above the potentiometer 45 in the case body 41 (curving in the RL bending direction of the bending unit 23a of the insertion unit 23).
- An engagement portion 50 is provided as a switching mechanism for fixing / releasing the angle.
- the engagement portion 50 serving as a switching mechanism is rotatably provided above (on the base end side) above the upper surface of the case body 41, and has a lever body 51a extending in the short direction of the initial position return mechanism portion 44.
- the RL engagement lever 51 which is the second operation member is provided.
- the RL engagement lever 51 is provided so as to be rotatable about a rotation axis X common to the rotation axis of the RL operation dial 42, and the lever rotation shaft 51 b is provided on the upper surface of the case body 41. It is accommodated in the case body 41 in a state of being kept watertight by the ring 41b.
- the lever rotating shaft 51b is provided with an outward flange 51c for retaining the abutting contact with the inner surface of the upper surface portion of the case body 41, and a cam surface 52a serving as a first inclined surface portion is provided at the end in the case body 41.
- a first cam 52 formed on the end face is provided.
- a substantially cylindrical second cam having a cam surface 53a as a second inclined surface facing the cam surface 52a formed on the upper end surface. 53 is provided below the first cam 52 in the case body 41 (at the front end side).
- a disc spring 54, a friction plate 55, and a cam guide 56 are accommodated in order from the upper side (base end side).
- the cam guide 56 is fixed to the case body 41.
- the second cam 53 is formed with a hole having a substantially rectangular cross section, and a cam guide 56 having a substantially rectangular cross section having a similar shape is inserted into the hole. Accordingly, the second cam 53 is movable in the vertical direction by the cam guide 56 without rotating.
- the sensor rotation shaft 45a passes through the potentiometer 45 and protrudes from the upper portion of the potentiometer 45.
- the sensor rotation shaft 45a is rotatable in the hole of the cam guide 56 so that the upper end surface contacts the lower surface of the friction plate 55. Is inserted.
- the RL angle operation unit 40 of the present embodiment configured as described above is operated by the operator to rotate the RL engagement lever 51 within a predetermined angle range of 0 ° to ⁇ .
- the engagement unit 50 fixes the rotation position of the RL operation dial 42 to fix / release the bending angle of the bending portion 23a in the RL bending direction.
- the angle of the RL engagement lever 51 is set so that the bending state in the RL direction of the bending portion 23a of the insertion portion 2 is returned to the linear complete initial position at 0 ° in the initial state.
- the angle of the RL engagement lever 51 is set so that the bending state in the RL direction of the bending portion 23a of the insertion portion 2 does not automatically return in the initial state ⁇ .
- the engagement portion 50 here is configured such that the bending state of the bending portion 23a in the RL direction is, for example, ⁇ 90 ° when the lever body 51a of the RL engagement lever 51 is in the initial position (the position of ⁇ / 2 in the drawing). It is set to be fixed.
- the engagement portion 50 is configured such that the lever body 51a of the RL engagement lever 51 is in a predetermined direction from the initial position (position of 0 ° in the drawing), in this case, the upper side (base) as viewed toward the paper surface of FIG.
- the bending state of the bending portion 23a in the RL direction is set to, for example, a maximum bending angle of 0 ° to ⁇ 180 ° in a linear state. It is set to be fixed.
- the engagement portion 50 has a predetermined other direction in which the lever body 51a of the RL engagement lever 51 faces the initial position (position of 0 ° in the figure), here, the lower side (front end side) as viewed toward the paper surface of FIG. ), The bending state in the RL direction of the bending portion 23a is not fixed (released).
- the engagement portion 50 is provided with a predetermined force from the friction plate 55 that contacts the upper end surface of the sensor rotation shaft 45a of the potentiometer 45. It is in a state of receiving frictional resistance.
- the sensor rotation shaft 45a of the potentiometer 45 is braked to the rotation angle at which the bending state in the RL direction of the bending portion 23a is output to the RL driving device, for example, an electric signal having a bending angle of ⁇ 90 °. It has become.
- the operator performs a turning operation of the RL operation dial 42 that bends the bending state of the bending portion 23a in the RL direction to, for example, ⁇ 90 ° or more, and moves the finger operated from the RL operation dial 42.
- the sensor rotation shaft 45a rotates and returns to the position where the bending angle of the bending portion 23a becomes the bending angle of, for example, ⁇ 90 ° by the turning force applied from the initial position return mechanism 44 (return). To do.
- the operator sets the rotation position of the lever body 51a of the RL engagement lever 51 to the position of ⁇ / 2 in the drawing, so that the RL bending angle of the bending portion 23a is, for example, ⁇ 90 ° to ⁇
- the bending angle in the RL direction of the bending portion 23a can be automatically returned to, for example, ⁇ 90 ° by releasing the operated finger from the RL operation dial 42.
- This function is achieved when the lever body 51a is in the rotation position of ⁇ / 2 in the drawing, and the rotational force of the neutral one return mechanism 44 applied to the sensor rotation shaft 45a and the rotation of the sensor by the friction plate 55 and the O-ring 41a. This can be realized by setting so as to balance the resistance force applied to the shaft 45a.
- the first cam 52 is rotated as shown in FIG. 6 when the lever body 51a of the RL engage lever 51 is rotated to a predetermined angle ⁇ .
- the second cam 53 is pushed downward (front end side) by the rotation of the first cam 52. That is, when the first cam 52 rotates, the second cam 53 moves downward (to the front end side) according to a so-called swash plate cam principle in which the cam surface 52 a pushes the cam surface 53 a of the second cam 53.
- the disc spring 54 provided in the second cam 53 is also pushed downward (front end side), and the friction plate 55 presses the upper end surface of the sensor rotating shaft 45a of the potentiometer 45.
- the operator can also rotate the RL operation dial 42 against the frictional resistance that the sensor rotation shaft 45a receives from the friction plate 55 even when the RL operation dial 42 is stationary.
- the operator can fix the bending state of the bending portion 23a in the RL direction at a desired bending angle in the range of 0 ° to ⁇ 180 °, for example.
- the engagement portion 50 is in a state where the cam surface 53 a of the second cam 53 facing the cam surface 52 a of the first cam 52 is substantially in surface contact with the potentiometer.
- the friction plate 55 is simply in contact with the upper end surface of the 45 sensor rotation shaft 45a.
- the operator rotates the RL operation dial 42 in a predetermined direction, and then releases the operated finger from the RL operation dial 42, so that the rotational force applied from the initial position return mechanism 44 causes the sensor rotation shaft. 45a returns to a predetermined return position.
- the operator rotates the lever body 51a of the RL engagement lever 51 from an initial position (position of 0 ° in the drawing) to an angle between a predetermined angle ⁇ , so that the sensor rotation shaft 45a is moved to the friction plate.
- the frictional resistance received from 55 can be varied.
- the bending of the bending portion 23a in the RL direction is, for example, 0 °. It can be set to return to an arbitrary angle in a stepless range in a range of ⁇ ⁇ 180 °.
- the endoscope 2 has the bending portion 23a when the operator releases the hand from the RL operation dial 42 by the turning operation of the lever body 51a of the RL engagement lever 51. Is configured such that the operator can arbitrarily switch the ON / OFF function of returning to the position of the predetermined bending angle.
- the operator rotates the lever body 51a of the RL engagement lever 51 to an arbitrary angle of 0 ° to ⁇ , the operator releases the RL operation dial 42 after rotating the RL operation dial 42.
- the bending portion 23a can be automatically returned to the bending state at an arbitrary angle.
- the engagement portion 50 provided in the endoscope 2 of the present embodiment has an UD angle knob 26 corresponding to the third operation member, with the operating range of the RL engagement lever 51, The UD knob engagement lever 28 and the switch 29 are set to be out of the closest operating range.
- the RL engagement lever 51 is located in the closest plane of the operation range of the UD angle knob 26 indicated by the alternate long and short dash line A in the drawing, and is closest to the operation range of the UD knob engagement lever 28 indicated by the dashed dotted line B in the drawing.
- the operating range is set so that the lever body 51a does not enter the plane within which the switch body 29 moves and the plane closest to the operating range of the switch 29 indicated by the alternate long and short dash line C in the figure.
- alternate long and short dash line B indicates an operating range in which the UD knob engagement lever 28 does not interfere with the vertical position of the RL engagement lever 51 in the direction as viewed toward the plane of FIG.
- the RL engagement lever 51 is operated not only when the lever body 51a does not interfere with the UD angle knob 26, the UD knob engagement lever 28, and the switch 29, but also when the UD angle knob 26 and the UD knob engagement lever 28 are operated.
- the operating range is set so that the lever body 51a does not interfere with a person's finger.
- the endoscope 2 described above, in particular, the RL angle operation unit 40 may be configured as a modification described below.
- the endoscope 2 is configured so that the position of the RL engagement lever 51 provided in the engagement portion 50 of the RL angle operation portion 40 is in the longitudinal direction (vertical direction) of the case body 41. It is the structure provided in the center part.
- the RL engagement lever 51 is pivotally supported with respect to the case body 41 with a cylindrical portion protruding vertically being held watertight by an O-ring 41b.
- the lever body 51a of the RL engagement lever 51 is disposed so as to extend from a slit-like hole 46 formed in the middle of the case body 41 (see FIG. 10).
- an outward flange 45b is provided in the middle of the sensor rotation shaft 45a.
- the outward flange 45b is disposed between a friction plate 55 that provides frictional resistance facing the upper surface and a cam guide 56 facing the lower surface.
- the friction plate 55 has a hole through which the sensor rotation shaft 54 is inserted.
- the potentiometer 45 is provided on the upper side (base end side) of the RL engagement lever 51.
- the lever body 51 a of the RL engage lever 51 extends from the hole 46 of the case body 41 at a position along the horizontal direction between the suction button 30 and the air / water feed button 31. It is provided to do.
- the operation range of the lever body 51a of the RL engagement lever 51 is outside the operation range of the UD angle knob 26, the UD knob engagement lever 28 and the switch 29 provided in the operation unit main body 24, and further includes the suction button 30 and the feeding button 30.
- the air / water supply button 31 is set to be out of the operating range.
- the endoscope 2 of the present modified example configured as described above is provided with the RL engagement lever 51 of the engagement unit 50 of the RL angle operation unit 40 in the middle, so that the operator can easily reach the index finger or the middle finger. Accessibility when operating these is improved.
- the RL engagement lever 51 is operated not only when the lever body 51a does not interfere with the UD angle knob 26, the UD knob engagement lever 28, and the switch 29, but also when the UD angle knob 26 and the UD knob engagement lever 28 are operated.
- the operating range is set so that the lever body 51a does not interfere with a person's finger.
- FIGS. 11 to 17 relate to a second embodiment of the present invention
- FIG. 11 is a cross-sectional view showing the configuration of the RL angle operation unit
- FIG. 12 is a side view showing the operation unit provided with the RL angle operation unit
- 13 is a top view showing an operation unit provided with an RL angle operation unit
- FIG. 14 is a cross-sectional view showing the configuration of the RL angle operation unit of the first modification
- FIG. 15 is an RL angle of the second modification
- FIG. 16 is a cross-sectional view showing the configuration of the RL angle operation unit of the third modification
- FIG. 17 is a cross-sectional view showing the configuration of the RL angle operation unit of the fourth modification. .
- the endoscope 2 moves the position of the engagement portion 50 of the RL angle operation portion 40 from the operation portion main body 24 in a direction orthogonal to the longitudinal direction (vertical direction) of the case body 41. It has a configuration that is shifted far away.
- the RL angle operation unit 40 is different from the rotation axis X of the RL operation dial 42, and the rotation axis Y of the RL engagement lever 51 of the engagement unit 50 located farther from the operation unit body 24 than the rotation axis X. have.
- the rotation axis X and the rotation axis Y are parallel axes.
- the RL engagement lever 51 and the first cam 52 are integrally formed, and the cam shaft 47 is rotatable on the RL engagement lever 51 and the first cam 52. It is inserted.
- the RL engagement lever 51 is pivotally supported with respect to the case body 41 by extending downward (front end side) and holding a cylindrical portion connected to the first cam 52 in a watertight manner by an O-ring 41b. .
- an outward flange 47 a is provided in the middle of the cam shaft 47.
- the outward flange 47a is disposed between a friction plate 55 that opposes the upper surface and gives a frictional resistance, and a cam guide 56 that opposes the lower surface.
- the friction plate 55 here has a hole portion through which the sensor rotation shaft 54 is inserted.
- a spur gear 48 is provided at the lower end of the cam shaft 47.
- the gear 48 is meshed with a spur gear 49 provided in the middle of the sensor rotation shaft 45a. Thereby, the rotation / stop of the cam shaft 47 and the sensor rotation shaft 45a are transmitted to each other.
- the operator releases the RL operation dial 42 from the bending state of the bending portion 23a that is bent to a predetermined angle by turning the RL operation dial 42.
- the RL angle operation unit 40 here has a lever body 51a of the RL engagement lever 51 of the engagement unit 50 as compared with the configuration described in the first embodiment. It is provided so as to extend from a distance with respect to the operation unit main body 24.
- the operation range of the lever body 51a of the RL engagement lever 51 can be set so as to be outside the operation range of the UD angle knob 26, the UD knob engagement lever 28 and the switch 29 provided in the operation unit main body 24. .
- the RL angle operation unit 40 provided in the operation unit main body 24 has the rotation axis X of the RL operation dial 42 and the RL engagement lever 51 of the engagement unit 50. Since the rotational axis Y is at a different position, the length in the vertical direction can be shortened, and the distance between the RL operation dial 42 and the lever body 51a of the RL engagement lever 51 can be shortened.
- lever body 51a of the RL engagement lever 51 is provided at a position away from the operation unit body 24, the UD angle knob 26, the UD knob engagement lever 28, the switch 29, the suction button 30, and the air / water supply button 31 does not get in the way, and the lever body 51a does not get in the way during these operations, and the operability of each of them is improved.
- the endoscope 2 described above, in particular, the RL angle operation unit 40 may be configured in various modifications described below.
- the RL angle operation unit 40 is a position far from the operation unit main body 24 of the RL engagement lever 51 of the engagement unit 50, and below the case body 41 in the vicinity of the RL operation dial 42. You may provide in (tip side).
- the RL angle operation unit 40 similarly to the RL operation dial 42, further provides the RL engagement lever 51 of the engagement unit 50 below the distal end side of the endoscope 2, so that the operator's index finger or The middle finger can be easily reached, and the accessibility when operating these can be improved.
- the RL angle operation unit 40 uses the RL operation dial 42 as the operation unit with the rotation axis X of the RL operation dial 42 and the rotation axis Y of the RL engagement lever 51 of the engagement unit 50 as different positions.
- the RL engagement lever 51 of the engagement unit 50 may be provided at a position distant from the operation unit main body 24.
- the RL angle operation unit 40 sets the RL operation dial 42 and the RL engagement lever 51 so that the rotation axis X and the rotation axis (X) of the RL engagement lever 51 of the engagement unit 50 are the same position. It is provided at a position far from the operation section main body 24, and the position of the RL engagement lever 51 is set at the central portion in the longitudinal direction (vertical direction) of the case body 41 with the same configuration as that of the modification of the first embodiment. It may be provided.
- the RL angle operation unit 40 in this case is such that the cam mechanism including the first cam 52 and the second cam 53 has an operation unit body 24 that is more than the RL operation dial 42 and the RL engagement lever 51 with respect to the operation unit body 24. It is provided in the position close to.
- a spur gear 51 e is provided at the lower end of the RL engagement lever 51, and a spur gear 52 b meshing with the gear 51 e is provided at the upper end of the first cam 52. Accordingly, the rotation of the RL engagement lever 51 is transmitted to the first cam 52.
- the RL angle operation unit 40 is configured so that the rotation axis X of the RL operation dial 42 and the rotation axis (X) of the RL engagement lever 51 of the engagement unit 50 are in the same position.
- the engagement lever 51 may be provided at a position far from the operation unit main body 24, and the potentiometer 45 may be provided at a position closer to the operation unit main body 24 than the RL operation dial 42 and the RL engagement lever 51.
- FIG. 18 to 23 relate to the third embodiment of the present invention
- FIG. 18 is a cross-sectional view showing the configuration of the RL angle operation unit
- FIG. 19 is a cross-sectional view explaining the operation of the RL angle operation unit
- FIG. 21 is a cross-sectional view showing a configuration of an RL angle operation unit according to a second modification
- FIG. 21 is a cross-sectional view showing a configuration of an RL angle operation unit according to a second modification
- FIG. 22 is an RL angle operation unit according to a third modification
- FIG. 23 is a cross-sectional view showing a configuration of an RL angle operation unit of a fourth modified example.
- the mechanism that brakes the rotation of the sensor rotation shaft 45 a of the potentiometer 45 provided in the engagement unit 50 of the RL angle operation unit 40 is the first described above.
- the configuration is different from those of the second embodiment and the second embodiment.
- the engagement portion 50 of the RL angle operation portion 40 is engaged with a rectangular block-like engagement block 51 d formed on the lower surface of the outward flange 51 c formed on the lever rotation shaft 51 b of the RL engagement lever 51.
- a substantially cylindrical threaded portion 62 that rotates together with the RL engagement lever 51.
- the threaded portion 62 is accommodated in a hollow portion 61 formed in the case body 41, and a male threaded portion 62a that engages with a female threaded portion 61a engraved on an inner peripheral wall forming the hollow portion 61. It is engraved on the outer periphery. Further, the threaded portion 62 is formed with a slot 62b that is a concave portion with which the engaging block 51d is engaged.
- the screw part 62 moves forward and backward along the rotation axis X direction by being rotated.
- the engagement portion 50 here is further pressed downward (front end side) by the coil spring 63 disposed so as to contact the lower surface of the screw portion 62 in the hollow portion 61 of the case body 41. And a sphere 64.
- the case body 41 is formed with a sphere receiver 61b which is a hole formed in a tapered shape so that a part of the outer surface of the sphere 64 is exposed and protrudes from the lower end portion forming the hollow portion 61.
- Other components are the same as those in the first embodiment described above.
- the screw portion 62 is also rotated.
- the hollow portion 61 moves forward and backward along the longitudinal direction of the RL angle operating portion 40 which is the vertical direction.
- the engaging portion 50 pushes the coil spring 63 when the screw portion 62 moves downward (tip side), and the sphere 64 presses the upper end surface of the sensor rotating shaft 45 a of the potentiometer 45.
- the operator changes the bending state of the bending portion 23a in the RL direction to a desired value, for example, 0 ° to ⁇ 180 °, according to the rotation amount of the lever body 51a of the RL engagement lever 51, as in the first embodiment.
- a desired value for example, 0 ° to ⁇ 180 °
- Other operations are the same as those of the above-described embodiments.
- the operator releases the RL operation dial 42 from the bending state of the bending portion 23a that is bent to a predetermined angle by turning the RL operation dial 42.
- the operator operates the RL operation dial 42 by rotating the lever body 51a of the RL engagement lever 51.
- the operation is such that the operator can arbitrarily switch ON / OFF the return function in which the bending portion 23a returns to the position of the predetermined bending angle.
- the operator moves the lever body 51a of the RL engagement lever 51 within an angle between the initial position (0 ° position shown in FIG. 5) and a predetermined angle ⁇ .
- the frictional resistance that the sensor rotation shaft 45a receives from the sphere 64 can be varied.
- the bending of the bending portion 23a in the RL direction is, for example, 0 °. It can be set to return to an arbitrary angle in a stepless range in a range of ⁇ ⁇ 180 °.
- the operator can move from the RL operation dial 42 by the turning operation of the lever body 51a of the RL engagement lever 51 as in the first embodiment.
- the operation is such that the operator can arbitrarily switch ON / OFF the return function in which the bending portion 23a returns to the position of the predetermined bending angle.
- the RL operation dial 42 does not need to be always held by a finger, and the RL operation is not performed. Even if the RL operation dial 42 is released, the bending state of the bending portion 23a that is bent at a predetermined angle by rotating the dial 42 can be always fixed (maintained).
- the operator rotates the lever body 51a of the RL engagement lever 51 to the initial position (0 ° position in FIG. 5), the operator operates the RL operation dial 42 and then turns the RL operation dial 42.
- the bending portion 23a can be automatically returned to the initial position by releasing the hand.
- the operator rotates the lever body 51a of the RL engagement lever 51 to an arbitrary angle of 0 ° to ⁇ , the operator releases the RL operation dial 42 after rotating the RL operation dial 42.
- the bending portion 23a can be automatically returned to the bending state at an arbitrary angle.
- the endoscope 2 described above, in particular, the RL angle operation unit 40 may be configured in various modifications described below.
- the RL angle operation unit 40 is similar to the second embodiment in that the operation unit main body 24 has a position of the engagement unit 50 in a direction orthogonal to the longitudinal direction (vertical direction) of the case body 41. It is good also as a structure shifted to a distant place.
- the RL angle operation unit 40 is different from the rotation axis X of the RL operation dial 42, and the rotation axis Y of the RL engagement lever 51 of the engagement unit 50 located farther from the operation unit body 24 than the rotation axis X. have.
- the rotation axis X and the rotation axis Y are parallel axes.
- the engagement portion 50 here has a gear shaft 65 which is provided on the case body 41 so as to be rotatable around the rotation axis Y and is pressed by the sphere 64.
- the gear shaft 65 is provided with a spur gear 66 at the upper end, and the gear 66 is engaged with the gear 49 of the sensor rotation shaft 45a. Thereby, the rotation / stop of the gear shaft 65 and the sensor rotation shaft 45a is transmitted to each other.
- the lever body 51a of the RL engagement lever 51 is rotated in a predetermined direction, and the screw portion 62 is RL within the hollow portion 61.
- the angle operation unit 40 moves back and forth in the vertical direction along the longitudinal direction.
- the engagement portion 50 pushes the coil spring 63 when the screw portion 62 moves downward (tip side), and the sphere 64 presses the upper end surface of the gear shaft 65.
- the RL angle operation unit 40 can shorten the separation distance between the RL operation dial 42 and the lever body 51a of the RL engagement lever 51. Therefore, the index finger or the middle finger can easily reach both the RL operation dial 42 and the RL engagement lever 51 by the operator, and the accessibility when operating these is improved.
- lever body 51a of the RL engagement lever 51 is also provided at a position away from the operation portion main body 24, the UD angle knob 26, the UD knob engagement lever 28, the switch 29, the suction button 30, and the air supply /
- the water supply button 31 does not get in the way, and the lever body 51a does not get in the way during these operations, and the operability of each is improved.
- the RL angle operation unit 40 is configured so that the RL engagement lever 51 of the engagement unit 50 is distant from the operation unit main body 24 in the same manner as the first modification of the second embodiment. Therefore, it may be provided on the lower side (front end side) of the case body 41 in the vicinity of the RL operation dial 42.
- the RL angle operation unit 40 is provided with the RL engagement lever 51 of the engagement unit 50 on the lower side (tip side) which is the distal end side of the endoscope 2, similarly to the RL operation dial 42, thereby further operating.
- the index finger or the middle finger of the person can easily reach, and the accessibility when operating these can be improved.
- the RL angle operation unit 40 is similar to the second modification of the second embodiment in that the rotation axis X of the RL operation dial 42 and the rotation of the RL engagement lever 51 of the engagement unit 50 are rotated.
- the RL operation dial 42 may be provided at a position far from the operation unit main body 24 and the RL engagement lever 51 of the engagement unit 50 may be provided at a position close to the operation unit main body 24 with the moving axis Y being a different position. Good.
- the RL angle operation unit 40 is similar to the fourth modification of the second embodiment in that the rotation axis X of the RL operation dial 42 and the rotation of the RL engagement lever 51 of the engagement unit 50 are rotated.
- the RL operation dial 42 and the RL engagement lever 51 are provided at a position far from the operation unit main body 24 with the moving shaft (X) being at the same position, and the potentiometer 45 is disposed on the operation unit more than the RL operation dial 42 and the RL engagement lever 51. You may provide in the position close
- FIGS. 24 to 27 relate to the fourth embodiment of the present invention
- FIG. 24 is a cross-sectional view showing the configuration of the RL angle operation unit according to the fourth embodiment of the present invention
- FIG. 25 is the configuration of the operation unit.
- FIG. 26 is a top view of the operation unit provided with the RL engagement lever
- FIG. 27 is a front view of the operation unit provided with the RL engagement lever.
- the RL engagement lever 51 is placed on the side surface orthogonal to the longitudinal direction (vertical direction) of the case body 41 with the position of the engagement portion 50 of the RL angle operation portion 40. It has a configuration provided.
- the RL engagement lever 51 of the engagement portion 50 is rotatably provided around the rotation axis Z orthogonal to the rotation axis X of the RL operation dial 42.
- the engagement portion 50 here has a mechanism that brakes the rotation of the sensor rotation shaft 45a of the potentiometer 45 as a configuration similar to that of the third embodiment, and a screw portion according to the rotation of the RL engagement lever 51. 62 moves forward and backward.
- the engage portion 50 pushes the coil spring 63 when the screw portion 62 moves inward of the case body 41, and the sphere 64 pressed by the coil spring 63 moves toward the dial rotation shaft 42 a of the RL operation dial 42. It strikes the peripheral surface and brakes the rotation of the RL operation dial 42.
- the operator releases the RL operation dial 42 from the bending state of the bending portion 23a that is bent to a predetermined angle by turning the RL operation dial 42.
- the operator moves the RL operation lever 51 from the RL operation dial 42 by rotating the lever body 51a.
- the operation is such that the operator can arbitrarily switch ON / OFF the return function in which the bending portion 23a returns to the position of the predetermined bending angle.
- the RL angle operation unit 40 here is provided with a RL engagement lever 51 of the engagement unit 50 far from the operation unit main body 24, and a lever of the RL engagement lever 51.
- the rotation operation direction of the body 51a is orthogonal to the rotation operation direction of the RL operation dial 42.
- the operation direction of the RL operation dial provided in the RL angle operation unit 40 and the operation direction of the RL engagement lever 51 are different. Incorrect operation when the bending state of the bending portion 23a is fixed / released can be prevented.
- the mechanism for braking the rotation of the sensor rotation shaft 45a of the potentiometer 45 is operated by the RL engagement lever 51 so that the screw portion 62 pushes the coil spring 63 so that the RL operation dial 42 is rotated by the sphere 64.
- the structure which brakes the moving shaft 42a was illustrated, it is good also as a cam mechanism described in 1st Embodiment and 2nd Embodiment, without being limited to this.
- FIG. 28 to FIG. 33 relate to the fifth embodiment of the present invention.
- the mechanism that brakes the rotation of the sensor rotation shaft 45a of the potentiometer 45 provided in the engagement unit 50 of the RL angle operation unit 40 is the first described above.
- the configuration for pressing the sphere 64 is different from that of the third embodiment, as well as the configuration of the second embodiment and the second embodiment.
- the engagement unit 50 of the RL angle operation unit 40 includes a switch unit 70 which is a so-called knock-type payout switch mechanism unit, and the switch unit 70 is configured to turn ON / OFF the pressure on the sphere 64. ing.
- the switch unit 70 is provided on the upper portion of the case body 41 and includes a knock bar 71, a rotator 72, a substantially cylindrical spring spring 73, and a coil spring 74, as shown in FIG. ing.
- an O-ring 41 b is provided between the case body 41 and the knock bar 71 and is kept in a watertight state. ing.
- the knock bar 71 has a plurality of protrusions 71b that move linearly along grooves formed on the inner wall of the case body 41 on the outer peripheral portion, and an uneven portion 71c is formed on the surface opposite to the operation rod body 71a. Has been.
- the rotator 72 has a rod body 72a that is inserted into the knock bar 71 and rotated and held, and rotates in contact with the concavo-convex portion 71c according to the protrusion and depression of the knock bar 71 on the outer periphery.
- the cam 72b is formed. That is, the cam 72b comes into contact with the concavo-convex portion 71c of the knock bar 71, and the rotor 72 is rotated about the axis.
- Spring spring 73 has an outward flange 73a formed in the middle of the outer periphery.
- the outward flange 73a is in contact with one end of the coil spring 74, and receives an urging force upward (base end side) here.
- a rubber block 73b which is a cylindrical elastic member that presses the sphere 64, is disposed at the lower end of the spring spring 73.
- the switch unit 70 configured as described above is configured such that when the operation bar 71 a of the knock bar 71 is pressed by the operator, the rotor 72 rotates in a predetermined direction.
- the cam 72b is hooked on a convex portion having a V-shaped end surface (not shown) formed on the inner surface of the case body 41 in accordance with the moving position.
- the switch unit 70 is in a state in which a part of the operation bar 71a of the knock bar 71 is immersed with respect to the case body 41, and the rubber block 73b of the spring spring 73 presses the sphere 64 downward (front end side).
- the rubber block 73b of the spring spring 73 moves downward (front end side) of the case body 41, so that the spherical body 64 pushed into the rubber block 73b downward (front end side) becomes the RL operation dial 42.
- the RL operation dial 42 is braked against the rotation of the dial rotation shaft 42a.
- the switch 72 further rotates the rotor 72 in a predetermined direction.
- the cam 72b is detached from the V-shaped end surface (not shown) formed on the convex portion of the case body 41.
- the rotator 72 is returned by receiving the urging force of the coil spring 74 through the spring spring 73, and the operation bar 71a of the knock bar 71 protrudes from the exterior portion 31.
- the operator presses the knock bar 71 of the switch unit 70 provided in the engagement unit 50 of the RL angle operation unit 40, so that the operator presses the RL operation dial 42.
- the bending state of the bending portion 23a that is bent at a predetermined angle by rotating is fixed (maintained) even if the hand is released from the RL operation dial 42, and the hand is released from the RL operation dial 42, so that the bending portion 23a is released.
- the bending portion 23a returns to the position of the predetermined bending angle.
- the return function is configured so that the operator himself can arbitrarily switch ON / OFF.
- the RL angle operation unit 40 here has a configuration in which the operation bar 71a of the knock bar 71 of the switch unit 70 protrudes from the upper surface of the case body 41, and the operation bar 71a of the knock bar 71 is moved upward ( The bending state of the bending portion 23a is fixed / released by pressing down from the base end side to the lower end (front end side).
- the endoscope 2 has a configuration in which an operator can easily perform an operation of fixing / releasing the bending state of the bending portion 23a.
- the endoscope 2 is operated by pressing the operation bar 71 a of the knock bar 71 of the switch unit 70 at a position protruding from the upper surface of the RL angle operation unit 40. This is a configuration.
- the operation bar 71a of the knock bar 71 operates the UD angle knob 26 and the UD knob engagement lever 28 as well as the lever body 51a does not interfere with the UD angle knob 26, the UD knob engagement lever 28 and the switch 29.
- the operation range is set so that the operation bar 71a of the knock bar 71 does not interfere with the operator's finger when performing the operation.
- the UD angle knob 26, the UD knob engagement lever 28, the switch 29, the suction button 30 and the air / water supply button 31 do not get in the way.
- the operation rod 71a does not get in the way and the operability is prevented from being lowered.
- the described requirements can be deleted if the stated problem can be solved and the stated effect can be obtained.
- the configuration can be extracted as an invention.
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Abstract
Description
先ず、図面に基づいて本発明の第1の形態を説明する。図1から図10は本発明の第1の実施の形態に係り、図1は内視鏡装置を示す全体構成図、図2は操作部の構成を示す側面図、図3はRLアングル操作部の構成を示す断面図、図4は図3のIV-IV線に沿った第2のカム、カムガイドおよびセンサ回動軸を示す断面図、図5はRLエンゲージレバーの動作範囲を示す平面図、図6はRLアングル操作部の作用を説明する断面図、図7はRLエンゲージレバーの動作範囲を説明するための操作部の正面図、図8はRLエンゲージレバーの動作範囲を説明するための操作部の上面図、図9は変形例のRLアングル操作部の構成を示す断面図、図10は変形例のRLエンゲージレバーの動作範囲を説明するための操作部の正面図である。
図3に示すように、RLアングル操作部40は、操作部本体24に固定されるケース体41の下面よりも下方にRL操作子であり、第1操作部材であるRL操作ダイヤル42が、図中の回動軸X回りに回動自在に設けられている。
以上に記載した内視鏡2、特にRLアングル操作部40は、以下に記載する変形例の構成としてもよい。
本発明の第2の実施の形態について図面を参照して説明する。なお、第1の実施の形態に記載した構成要素には同一符号を付してそれら構成要素の詳しい説明は省略する。
以上に記載した内視鏡2、特にRLアングル操作部40は、以下に記載する種々の変形例の構成としてもよい。
図14に示すように、RLアングル操作部40は、エンゲージ部50のRLエンゲージレバー51を操作部本体24に対して遠方の位置であって、RL操作ダイヤル42の近傍のケース体41の下方側(先端側)に設けてもよい。
図15に示すように、RLアングル操作部40は、RL操作ダイヤル42の回動軸Xとエンゲージ部50のRLエンゲージレバー51の回動軸Yとを異なる位置として、RL操作ダイヤル42を操作部本体24に対して遠方の位置に設け、エンゲージ部50のRLエンゲージレバー51を操作部本体24に対して近接した位置に設けてもよい。
図16に示すように、RLアングル操作部40は、の回動軸Xとエンゲージ部50のRLエンゲージレバー51の回動軸(X)が同じ位置として、RL操作ダイヤル42およびRLエンゲージレバー51を操作部本体24に対して遠方の位置に設けて、さらにRLエンゲージレバー51の位置を第1の実施の形態の変形例と同様な構成によりケース体41の長手方向(上下方向)の中央部分に設けてもよい。
図17に示すように、RLアングル操作部40は、RL操作ダイヤル42の回動軸Xとエンゲージ部50のRLエンゲージレバー51の回動軸(X)が同じ位置として、RL操作ダイヤル42およびRLエンゲージレバー51を操作部本体24に対して遠方の位置に設けて、ポテンショメータ45をRL操作ダイヤル42およびRLエンゲージレバー51よりも操作部本体24に近接した位置に設けてもよい。
本発明の第3の実施の形態について図面を参照して説明する。なお、上述した各実施の形態に記載した構成要素には同一符号を付してそれら構成要素の詳しい説明は省略する。
以上に記載した内視鏡2、特にRLアングル操作部40は、以下に記載する種々の変形例の構成としてもよい。
図20に示すように、RLアングル操作部40は、第2の実施の形態と同様にして、エンゲージ部50の位置をケース体41の長手方向(上下方向)に直交した方向の操作部本体24から遠方にずらした構成としてもよい。
図21に示すように、RLアングル操作部40は、第2の実施の形態の第1の変形例と同様に、エンゲージ部50のRLエンゲージレバー51を操作部本体24に対して遠方の位置であって、RL操作ダイヤル42の近傍のケース体41の下方側(先端側)に設けてもよい。
図22に示すように、RLアングル操作部40は、第2の実施の形態の第2の変形例と同様に、RL操作ダイヤル42の回動軸Xとエンゲージ部50のRLエンゲージレバー51の回動軸Yとを異なる位置として、RL操作ダイヤル42を操作部本体24に対して遠方の位置に設け、エンゲージ部50のRLエンゲージレバー51を操作部本体24に対して近接した位置に設けてもよい。
図23に示すように、RLアングル操作部40は、第2の実施の形態の第4の変形例と同様に、RL操作ダイヤル42の回動軸Xとエンゲージ部50のRLエンゲージレバー51の回動軸(X)が同じ位置として、RL操作ダイヤル42およびRLエンゲージレバー51を操作部本体24に対して遠方の位置に設けて、ポテンショメータ45をRL操作ダイヤル42およびRLエンゲージレバー51よりも操作部本体24に近接した位置に設けてもよい。
次に、本発明の第4の実施の形態について図面を参照して説明する。なお、上述した各実施の形態に記載した構成要素には同一符号を付してそれら構成要素の詳しい説明は省略する。
次に、本発明の第5の実施の形態について図面を参照して説明する。なお、上述した各実施の形態に記載した構成要素には同一符号を付してそれら構成要素の詳しい説明は省略する。
Claims (14)
- 内視鏡における挿入部の基端側に設けられた操作部に配設される、内視鏡操作機構において、
初期状態から操作者により操作されて変位することで前記内視鏡の機能を動作させる第1操作部材と、
前記操作部材に対し前記初期状態に復帰するよう付勢力を印加する初期状態復帰機構と、
操作者により操作される第2操作部材の動作により、前記付勢力による前記操作部材の変位を許容する第1状態と、前記付勢力に抵抗し前記操作部材の変位を抑制する第2状態と、に切換可能な切換機構と、
を具備することを特徴とする内視鏡操作機構。 - 更に、前記第1操作部材の変位を検出し、検出した変位量に応じた電気信号を前記内視鏡の機能の駆動源を制御する制御部に出力するセンサを備えたことを特徴とする、請求項1に記載された内視鏡操作機構。
- 前記第1操作部材は、所定軸回りに回動自在に設けられ、初期位置から操作者によって回動されることで前記内視鏡の機能を動作させる回動操作部材で構成されていることを特徴とする、請求項1に記載された内視鏡操作機構。
- 更に、前記第1操作部材の回動軸における回動が伝達されて回転されることで、前記第1操作部材の回動量を検出する回転軸を有し、検出した前記回動量に応じた電気信号を前記内視鏡機能の駆動源を駆動制御する制御部に出力するセンサを備えたことを特徴とする、請求項3に記載された内視鏡操作機構。
- 前記第2操作部材における動作範囲は、前記内視鏡操作部に設けられた前記内視鏡機能とは異なる他の内視鏡機能を操作する第3の操作部材の動作範囲と干渉しない位置に設定されていることを特徴とする、請求項1に記載された内視鏡操作機構。
- 前記第2操作部材は、回動操作されることで前記第1の状態と前記第2の状態とを切り換える回動操作部材で構成され、前記第1操作部材の回動軸と前記第2操作部材の回動軸が同軸上に配置されていることを特徴とする、請求項3に記載された内視鏡操作機構。
- 前記第1操作部材が前記センサよりも内視鏡における長手方向の先端側に配置され、前記第2操作部材が前記センサよりも内視鏡における長手方向の基端側に配置されていることを特徴とする、請求項6に記載された内視鏡操作機構。
- 前記第2操作部材は、第1操作部材と前記センサとの、前記回動軸に沿った間に配置されていることを特徴とする、請求項6に記載された内視鏡操作機構。
- 前記第1操作部材の回動軸と前記第2操作部材の回動軸が異なる軸上に配置されていることを特徴とする、請求項6に記載された内視鏡操作機構。
- 前記第1操作部材が前記センサよりも先端側に配置され、前記第2操作部材が前記センサよりも基端側に配置されていることを特徴とする、請求項9に記載の内視鏡操作機構。
- 前記第2操作部材は、前記第1操作部材と前記検出センサの間に配置されていることを特徴とする、請求項9に記載された内視鏡操作機構。
- 前記第2操作部材は、前記第1操作部材よりも前記内視鏡操作部の遠方に配設されていることを特徴とする、請求項9に記載された内視鏡操作機構。
- 前記第2操作部材は、前記第1操作部材と並設されていることを特徴とする、請求項12に記載された内視鏡操作機構。
- 請求項1に記載の内視鏡操作機構を備え、
前記内視鏡操作機構によって湾曲操作される湾曲部が挿入部に設けられていることを特徴とする内視鏡。
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CN201580052424.5A CN107072474A (zh) | 2015-01-09 | 2015-09-02 | 内窥镜操作机构和内窥镜 |
EP15876915.8A EP3178371A4 (en) | 2015-01-09 | 2015-09-02 | Endoscope operation mechanism and endoscope |
JP2016530035A JP6028125B1 (ja) | 2015-01-09 | 2015-09-02 | 内視鏡操作機構および内視鏡 |
US15/447,551 US10517463B2 (en) | 2015-01-09 | 2017-03-02 | Endoscope operation mechanism and endoscope |
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US11294414B2 (en) * | 2018-04-05 | 2022-04-05 | Medos International Sàrl | Surgical instruments with rotation stop devices |
US11807502B2 (en) * | 2020-02-03 | 2023-11-07 | Motodagiken Co., Ltd. | Operation unit of load handling device |
EP4223208A1 (en) * | 2022-02-07 | 2023-08-09 | Ambu A/S | An endoscope |
US20230270323A1 (en) * | 2022-02-28 | 2023-08-31 | Covidien Lp | Dynamic input controls on a drive-by-wire endoscope |
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