JP5749564B2 - Endoscope device - Google Patents

Description

  The present invention relates to an endoscope apparatus, and more particularly, to an endoscope apparatus in which an operation unit that bends an insertion unit and a display unit that displays an image acquired by the insertion unit are housed in the same casing. .

Endoscopic devices having an imaging mechanism at the distal end of a long insertion portion are widely used for observation of a test object at the end of an elongated access path, internal observation of the test object, and the like.
In recent years, as one direction of improvement of an endoscope apparatus, a display unit that displays an image acquired by an insertion unit and an operation unit that performs a bending operation of the insertion unit are accommodated in a single casing, and can be carried and Ease of operation is being considered.

  Patent Document 1 describes an endoscope apparatus in which a display unit and an operation unit are housed in a common housing, and two types of housing shapes are disclosed.

US Patent Application Publication No. 2007/0070340

However, although the case described in Patent Document 1 lacks stability when placed, the case itself has stability, but problems such as being easily collapsed due to the weight of the long insertion portion still remain. Yes. Therefore , the appearance of a stable housing is still expected.

The present invention was made in view of the circumstances as described above, and an object thereof is to provide an endoscope apparatus comprising a housing having a stability.

An endoscope apparatus according to the present invention has an imaging mechanism at a distal end portion, a bendable insertion portion, a display portion that displays an image acquired by the imaging mechanism, and an operation portion that performs a bending operation of the insertion portion. When the display unit and the operating unit is accommodated in the front side, the comprises a front side opposite the rear cabinet said insertion portion is connected to the body, wherein the housing is to have a ground plane, A base part formed in a substantially flat plate shape, a front part rising from the base part and having the display part and the operation part arranged on the upper surface, and a back part rising from the base part and connected to the insertion part In the side view, the base portion, the front portion, and the back portion have a substantially triangular shape with the base portion as a base, and in the side view, the height direction from the base portion Through the midpoint of the A region on the base portion side of the housing is referred to as a lower region and a region on the opposite side of the base portion is referred to as an upper region with the first plane as a boundary. When the area on the side where the front part is raised in the casing is referred to as a front area and the area on the side where the back part is raised is referred to as a rear area, The mass of the built-in object and the housing are larger in mass in the lower region than in the upper region, and larger in mass in the rear region than in the front region, The insertion portion is characterized by extending downward in the height direction from a portion belonging to the lower region or a central portion in the height direction in the back surface portion .

According to the endoscope apparatus of the present invention may be a housing having a stability

It is a figure showing an endoscope apparatus of a first embodiment of the present invention. It is a left view which shows the housing | casing of the same endoscope apparatus. It is sectional drawing in the housing | casing, and is a figure which also shows arrangement | positioning of the main built-in objects. It is a figure which shows the structure of a part of board | substrate arrange | positioned at the housing | casing. It is a left view which shows the housing | casing in the endoscope apparatus of 2nd embodiment of this invention. It is a figure which shows the other example of a finger hook.

An endoscope apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. The endoscope apparatus 1 of the present embodiment is used for observation of a test object at the end of an elongated access path, internal observation of the test object, and the like.
As shown in FIG. 1, the endoscope apparatus 1 includes a long insertion unit 10, an operation unit 20 for performing a bending operation of the insertion unit 10, and a display unit that displays an image acquired by the insertion unit 10. 40 and a housing portion 60 including a housing 61 that accommodates the operation unit 20 and the display unit 40.

  The insertion unit 10 has a known configuration including an observation optical system 11 and an illumination mechanism 12 such as an LED and an imaging mechanism such as a CCD (not shown) at the distal end, and the stationary object such as an object in front of the distal end is stationary. Images such as images and videos can be acquired. In addition, a plurality of node rings or bending pieces (not shown) (hereinafter collectively referred to as “node rings etc.”) have a known bending portion 13 connected side by side in the axial direction, and intersect with the central axis line of itself. Can be bent in four directions away from the central axis. An operation member such as four wires corresponding to the four directions is connected to the most distal node ring among the plurality of node rings. Each operation member extends to the inside of the housing 61 through each node ring or the like, and is connected to the operation unit 20.

The operation unit 20 includes a first joystick 21 for operating the bending unit 13, a second joystick 22 for operating a cursor displayed on the display unit 40, and the bending operated via the first joystick 21. Mechanism.
The first joystick 21 and the bending mechanism have a known configuration. By tilting the first joystick 21 in a desired direction, the operation member connected to the bending mechanism is advanced and retracted in the axial direction, and the bending portion 13 is bent. Can do. The second joystick 22 is an electrical operation mechanism having one end attached to a switch board, which will be described later, and the cursor is moved in that direction by inputting the tilted direction to the switch board.

  The display unit 40 has a known configuration including a display 41 such as an LCD and a display control board (described later) that controls display on the display 41. The display 41 is connected to the imaging mechanism 11 of the insertion unit 10 via a display control board, receives a video signal obtained by converting the video acquired by the imaging unit 11 into a signal, and displays the video signal.

The casing unit 60 includes a casing 61, a battery 62 and a shade 63 attached to the casing 61. The battery 62 is a power source for the endoscope apparatus 1, and the shade 63 prevents sunlight from entering the display 41 and makes it difficult to see, and any known one can be appropriately selected and used.
The casing 61 includes a base portion 65 that is provided at a lower portion and has a grounding surface, and a front portion 66 and a rear portion 67 that rise from the base portion 65 at a predetermined angle with the base portion 65.

  FIG. 2 is a left side view of the housing unit 60. In addition, in order to make the shape of the housing 61 easier to see, the shade 63 is omitted in the drawings after FIG. The housing 61 is formed so as to exhibit a triangle (including a substantially triangular shape) having sides of the base portion 65, the front portion 66, and the back portion 67 in a side view. An angle (first angle) θ1 formed by the base portion 65 and the front portion 66 is set smaller than an angle (second angle) θ2 formed by the base portion 65 and the back surface portion 67.

The base portion 65 is formed in a substantially flat plate shape having a predetermined thickness, and the housing 61 can be placed in a stable state by bringing the lower grounding surface 65A into contact with the ground or a desk. In the base portion 65, the front side where the front portion 66 rises is cut at the lower portion to reduce the thickness, and the battery 62 is detachably attached to the space formed at the lower portion.
In the present embodiment, the battery 62 is attached to the outside of the housing 61, but instead, the battery may be attached to the inside of the housing.

  The front portion 66 is formed in a substantially rectangular parallelepiped shape, and the display unit 40 is attached above the upper surface 66A facing upward, and the joysticks 21 and 22 of the operation unit 20 are attached below the display unit. In the front portion 66, the area below the first joystick 21 is set to have a smaller dimension in the width direction than the area above the first joystick 21, as shown in FIG. Portion 68.

  The back surface portion 67 provides rigidity to the housing 61 by connecting the base portion 65 and the front surface portion 66. Further, the proximal end portion of the insertion portion 10 is connected to the back surface portion 67, and extends downward from the inclined surface 67 </ b> A of the back surface portion 67 facing downward.

  FIG. 3 is a cross-sectional view of the housing 61 and schematically shows a layout of main built-in objects housed in the housing 61. A plurality of substrates are accommodated in the housing 61, but the largest main substrate 71 is arranged behind the battery 62 in the space in the base portion 65. A switch substrate 72 connected to the second joystick 22 is accommodated in an area above the battery 62 in the space in the base portion 65.

  A display control board 73 for controlling the display 41 is attached to the rear of the display 41 (back side) in the housing 61. In addition, the device control board 74 that controls the operation of each part of the endoscope device 1 is disposed below the back surface portion 67.

Of the above-described substrates, as shown in FIG. 4, the main substrate 71 and the device control substrate 74 have a top surface provided with a wiring pattern 75, an IC chip 76, and the like sealed with a resin layer 77, so that Etc. are suppressed. That is, the endoscope apparatus 1 has an explosion-proof specification, and the main board 71 and the apparatus control board 74 have a larger mass than those provided in a general endoscope apparatus.
In addition to this, a bending mechanism 23 connected to the insertion portion 10 and the first joystick 21, wiring (not shown) for connecting each portion, and the like are arranged inside the housing 61.

  As a result of the built-in objects being arranged as described above and housed in the housing 61, the upper region Au above the middle point of the height H1 of the housing and the lower region Ad below the lower region Ad The mass is larger, for example, the mass ratio is set to 3: 7. This mass distribution is based on the fact that the main board 71 is disposed in the base portion 65, the battery 62 is attached to the base portion 65, the device control board 74 is disposed below the back surface portion 67, In addition, the main component is that the casing 61 is formed in a substantially triangular shape with the base portion 65 as a bottom in a side view.

  Further, in the housing 61, the front region Af on the battery 62 side and the rear region Ar on the insertion unit 10 side from the midpoint in the longitudinal direction of the base portion 65 that extends so as to connect the front portion 66 and the rear portion 67, The mass ratio is in the range of 10:90 to 45:55. Thereby, it is difficult to generate a force that tilts the casing 61 back and forth.

  Since the base portion 65 and the front portion 66 are set to have a predetermined thickness, the housing 61 is formed with a finger hooking hole 69 penetrating in the width direction of the front portion 66. Since the thickness t1 of the front portion 66 is substantially the same in the longitudinal direction, the upper side of the finger hook hole 69 is substantially parallel to the front portion 66. The longitudinal dimension of the finger-holding hole 69 in a side view has such a length that four fingers of a general size can be arranged in a line, and when the user grips the grip portion 68, the dimension other than the thumb It functions as a place to pass four fingers.

The operation at the time of use of the endoscope apparatus 1 configured as described above will be described.
When using the endoscope apparatus 1 with the housing 61, the user passes four fingers other than the thumb through the finger hook hole 69, and places the thumb on the upper surface 66 </ b> A side of the front portion 66 to hold the grip portion 68. Grip. As shown in FIG. 3, since the finger hook hole 69 is formed so as to cover the boundary between the front area Af and the rear area Ar, the user grips the vicinity of the center of the casing 61 in the front-rear direction. . With this gripping state and the arrangement of the built-in objects described above, the housing 61 is stable with the base portion 65 facing downward, and the grounding surface 65A is maintained in a state substantially parallel to the vertical direction. While viewing the video displayed on 40, the operation unit 20 can be suitably operated with the thumb.

  If the hand holding the housing 61 becomes tired due to a long usage time or the like, the housing 61 can be placed on the ground or a desk for operation. At this time, the grounding surface 65A is brought into contact with the upper surface of the ground, desk, etc., but as described above, the grounding surface 65A is substantially parallel to the vertical direction when the housing 61 is held by hand. The posture of the casing 61 is almost the same between when the casing 61 is held by hand and when it is placed on the ground or a desk. Therefore, even after the housing 61 is placed, the display unit 40 can be viewed at the same angle as when the housing 61 is held by hand, and the operation unit 20 can be operated with the same operational feeling.

  According to the endoscope apparatus 1 of the present embodiment, the casing 61 on which the operation unit 20 and the display unit 40 are mounted includes the base unit 65, the front unit 66, and the back unit 67, and has a triangular shape in a side view. Since it comprises so that it may exhibit, it can be put in the stable state by making a base part into a base.

  Since the built-in object is arranged in the casing 61 so that the mass of the lower region Ad is larger than that of the upper region Au and the mass ratio between the front region Af and the rear region Ar is within a predetermined range, When the operation is carried with the unit 68, the posture is almost the same as when the operation is performed, and a stable operation can be performed. In addition, since the display unit 40 can be viewed at a suitable angle at all times, it is not necessary to provide a mechanism for adjusting the angle such as a hinge on the display unit, and the endoscope apparatus is simpler and less likely to fail. Can do.

  Further, since the insertion portion 10 extends downward from the portion of the back surface portion 67 belonging to the lower region Ad, the weight of the long insertion portion and the moment generated by the insertion portion destroy the posture of the housing 61. It is hard to act. Therefore, even if it has a long insertion portion, it is possible to perform a stable operation by gripping the housing.

  Next, a second embodiment of the present invention will be described with reference to FIG. The difference between the endoscope apparatus of the present embodiment and the above-described endoscope apparatus 1 is the shape of the finger hook holes in the housing. In the following description, components that are the same as those already described are assigned the same reference numerals and redundant description is omitted.

When considering ergonomics, it is necessary to assume that the operator's finger thickness is quite large. In that case, the finger-hanging hole is considerably large, leading to an increase in the size of the apparatus. Therefore, in the present embodiment, the finger-holding hole is made small by providing the finger-holding hole, thereby contributing to downsizing of the device itself.
FIG. 5 is a left side view showing the casing 82 of the endoscope apparatus 81 of the present embodiment. The basic configuration of the casing 81 and the arrangement mode of the built-in items are substantially the same as those of the casing 61 of the first embodiment, but the shape of the finger-holding hole 83 in a side view is four fingers having a general size. It is set so that it cannot be inserted side by side. Instead, the lower surface of the front surface portion 66 is cut off at the lower end of the finger hooking hole 83, and a part of the finger hooking hole 83 serves as a locking portion 83A extending toward the front surface upper surface 66A.
The locking portion 83A is formed in a groove shape extending in the width direction of the front surface portion 66, and the width and depth of the groove shape allow one finger having a general size to be disposed in the locking portion 83A. Is set to about. The front portion 66 has a small thickness only at the portion where the locking portion 83A is formed.

  When the user grips the housing 82, the point that four fingers other than the thumb are inserted into the finger hook holes 83 is the same as in the first embodiment, but at this time, as shown in FIG. Are arranged in the locking portion 83A, and the other three fingers are arranged side by side in a portion of the finger hanging hole 83 that extends in parallel with the front portion 66. The finger placed in the locking portion 83A can be appropriately determined by the user, but since the locking portion 83A is at the lower end, it is most natural to place the little finger, and the grip portion 68 is preferably gripped. This is preferable because it is possible.

  In the endoscope apparatus 81 of the present embodiment, a locking portion 83 </ b> A is provided in the finger hooking hole 83 by cutting out a part of the front portion 66. Thus, as in the first embodiment, four fingers are inserted into the finger-holding holes so that the housing 82 can be satisfactorily held, and the dimensions of the finger-holding holes in the height direction of the housing are made larger than those in the first embodiment. Has succeeded in making it smaller. As a result, the height of the housing can be reduced without changing the thickness of the base portion 65, and the housing can be further miniaturized without greatly reducing the storage space for the built-in objects.

  In this embodiment, the site | part which provides a latching | locking part is not limited to the lower end part of a finger hook hole. For example, as shown in FIG. 6, a locking portion 83 </ b> B may be provided at the upper end portion of the finger hooking hole 83. In this case, the dimension of the finger hook hole in the front-rear direction of the housing can be reduced, and the size in the front-rear direction of the housing can be reduced to reduce the size. However, in this case, since the thickness near the center in the longitudinal direction of the front portion is small, there is a possibility that the layout of the contents may be slightly difficult. Therefore, when it is desired to arrange more contents in the front part, it is preferable to provide a locking part at the lower end part because the area that can become a dead space is reduced.

  The embodiments of the present invention have been described above. However, the technical scope of the present invention is not limited to the above embodiments, and combinations of components in the embodiments may be changed without departing from the spirit of the present invention. Various changes can be added to or deleted from each component.

  For example, the endoscope apparatus of the present invention does not necessarily have explosion-proof specifications. In such a case, the upper surface of the substrate does not have to be sealed with a resin layer.

  Also, the bending mechanism is an electric bending mechanism in which the operation member is wound up and fed out by a motor or the like in accordance with the input of the joystick that performs electrical input instead of the operation member that directly moves the operation member back and forth by operating the joystick. May be mounted. In this case, the above-described mass distribution may be realized by disposing a built-in object having a relatively large mass such as a motor below the base part or the back part.

  Further, in each of the above-described embodiments, the example in which the insertion portion is connected to the portion belonging to the lower region in the back surface portion of the housing has been described, but the insertion portion is connected to the central portion in the height direction of the housing in the back surface portion. However, a certain stabilization effect can be obtained.

DESCRIPTION OF SYMBOLS 1, 81 Endoscope apparatus 10 Insertion part 11 Imaging mechanism 20 Operation part 40 Display part 61, 82 Case 62 Battery 65 Base part 65A Grounding surface 66 Front part 66A Upper surface 67 Rear part 69, 83 Finger hole 83A, 83B Locking Part Ad Lower region Af Front region Ar Rear region Au Upper region

Claims (6)

An insertion portion that has an imaging mechanism at the distal end and can be bent;
A display unit for displaying an image acquired by the imaging mechanism;
An operation unit for performing a bending operation of the insertion unit;
A housing in which the display unit and the operation unit are housed on the front side, and the insertion unit is connected to the back side opposite to the front side;
With
The housing is
Have a ground plane, a base portion having a substantially flat plate,
A front portion in which the display portion and the operation portion are arranged on the upper surface, rising from the base portion;
A back portion that rises from the base portion and is connected to the insertion portion ;
With comprising a,
In the side view, the base part, the front part, and the back part have a substantially triangular shape with the base part as a base,
In the side view, a region on the base portion side of the housing is a lower region, with a first plane parallel to the base portion passing through a midpoint in the height direction from the base portion, and the base portion The area on the opposite side is called the upper area,
In the side view, with the second plane that bisects the base part as a vertical bisector, the area of the housing on the side where the front part is raised is the front area, and the side where the back part is raised When the area is referred to as the rear area,
Built-in objects arranged in the housing and the mass of the housing are:
The mass of the lower region is greater than the mass of the upper region, and the mass of the rear region is greater than the mass of the front region,
The insertion part is
An endoscope apparatus, wherein the endoscope device extends downward from a portion belonging to the lower region or a central portion in the height direction in the back surface portion . A finger hook hole extending in the width direction of the front portion and penetrating the housing;
The front part is
Rising from the base portion at a first angle with the base portion ,
The back part is
The base portion and the endoscope apparatus according to claim 1, wherein greater than the first angle second angular name to be characterized <br/> that that rising from the base portion. The groove-like latching part which can arrange one finger is provided in the finger hooking hole by notching a part of the lower surface of the front part, The claim 2 characterized by things. Endoscopic device. The locking portion is
The endoscope apparatus according to claim 3 , wherein the endoscope apparatus is provided at a lower end portion of the finger hanging hole. Mass ratio of the front region and the rear region 10: 90-45: said built-in so as to be in the range of 55 are disposed claim, wherein in any one of the 4 The endoscope apparatus described. Functions as a power supply, the endoscope apparatus according to any one of claims 1 to 5, further comprising a battery mounted on said base portion.

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