CN106842532B - Stereoscopic observation device for operation - Google Patents
Stereoscopic observation device for operation Download PDFInfo
- Publication number
- CN106842532B CN106842532B CN201611012783.0A CN201611012783A CN106842532B CN 106842532 B CN106842532 B CN 106842532B CN 201611012783 A CN201611012783 A CN 201611012783A CN 106842532 B CN106842532 B CN 106842532B
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- CN
- China
- Prior art keywords
- arm
- lens barrel
- stereoscopic
- optical system
- monitor device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 claims description 50
- 238000005286 illumination Methods 0.000 claims description 17
- 238000003384 imaging method Methods 0.000 claims description 14
- 230000001954 sterilising effect Effects 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/36—Microscopes arranged for photographic purposes or projection purposes or digital imaging or video purposes including associated control and data processing arrangements
- G02B21/362—Mechanical details, e.g. mountings for the camera or image sensor, housings
Abstract
The invention relates to a surgical stereoscopic viewing device, wherein a vertical arm (5), a horizontal arm (6) and a lens barrel (15) are arranged on the side surface of one side of the left and right of a bracket main body (3), and a monitor device (20) is arranged at the top end of an arm (19) extending to the other side in the left and right direction. Therefore, the weight balance of the monitor device can be achieved on the left and right sides with the bracket main body (3) as the center, and even if the monitor device (20) is large, the monitor device can be supported by the bracket main body (3) which is small.
Description
Technical Field
The present invention relates to a surgical stereoscopic viewing apparatus.
Background
In neurosurgery, for example, when a doctor performs an operation while observing the operation field in a magnified manner, an operation microscope is generally used. The doctor holds the eyes close to the ocular part of the surgical microscope and performs magnifying observation on the affected part through the optical system of the surgical microscope.
In such a method of observing the operation field under magnification by an operation microscope, since it is often necessary to bring the eye close to the ocular region, if the microscope is tilted for observation, the head of the surgeon is also tilted, and the surgeon is forced to take a difficult posture during the operation.
Therefore, recently, as a stereoscopic observation device for surgery, a method has been proposed in which a stereoscopic electronic image of an affected part is picked up by a lens barrel with a built-in camera and displayed on a monitor device, and stereoscopic observation is performed by 3D dedicated glasses, instead of a surgical microscope.
The lens barrel is supported by the holder device in a freely movable manner in a suspended state, and a doctor can hold the lens barrel by hand, freely change the position and direction of the lens barrel, and select an optimal observation direction.
Since it is not necessary to bring the eyes close to the eyepiece portion, the doctor can perform the operation in a free posture, and not only the doctor but also an assistant can observe the same monitor device. The related art is exemplified in Japanese patent laid-open publication No. Hei 11-318936 (patent document 1).
Disclosure of Invention
However, in the case of such a stereoscopic viewing apparatus, since the hand of the doctor touches the lens barrel, it is necessary to cover a sterilizing cloth for sterilization in the vicinity of the lens barrel. Since the monitor device cannot be covered with the sterilizing cloth, it is disposed at a position away from the lens barrel. Since the monitor device is far from the lens barrel, a relatively large size is required to ensure visibility for the doctor.
Therefore, the weight of the monitor increases as a practical problem, and it is difficult to support the monitor apparatus and the lens barrel together with the holder apparatus due to the problem of weight balance. If the monitor device is supported by the stand device together with the lens barrel, a large and strong stand device is required, and the space in the operating room is compressed.
The present invention has been made in view of such related art, and provides a stereoscopic viewing device for surgery capable of supporting a large-sized monitor device together with a lens barrel without increasing the size of a cradle device.
According to a first aspect of the present invention, there is provided a surgical stereoscopic viewing apparatus comprising: a lens barrel that houses an optical unit that obtains a stereoscopic optical image of a surgical field and an imaging unit that images the stereoscopic optical image obtained by the optical unit and outputs a stereoscopic image signal; a holder device that is freely movable to an arbitrary position in a state of supporting the lens barrel; and a panel type monitor device for displaying a stereoscopic image based on a stereoscopic image signal output from the imaging unit, wherein the stand device includes a base provided on a floor, and a stand main body rotatable about a vertical axis with respect to the base, a vertical arm and a lateral arm are provided on one side surface in a left-right direction of the stand main body, the vertical arm is attached so that a middle portion thereof is inclined forward and backward about a horizontal axis, a base end side of the lateral arm is pivotally supported at an upper end of the vertical arm, extends in a lateral direction, and holds a lens barrel at a top end thereof, and an arm extending to the other side in the left-right direction of the stand main body and holding the monitor device at the top end thereof is provided on the stand main body.
According to another aspect of the present invention, the vertical arm and the horizontal arm are of a balanced type in which the weight of the lens barrel is offset by a balance weight.
According to another aspect of the present invention, the arm is configured to be foldable in a horizontal direction.
According to another aspect of the present invention, the optical unit includes at least 1 objective optical system and a variable power optical system through which a pair of right and left light fluxes having passed through the objective optical system pass, the imaging unit includes a pair of right and left imaging elements that receive the light fluxes having passed through the variable power optical system, and the lens barrel includes an illumination unit that can irradiate the illumination light to the surgical field at an angle different from an optical axis (K) of the objective optical system.
Drawings
Fig. 1 is a front view showing a surgical stereoscopic viewing device.
Fig. 2 is a side view showing the surgical stereoscopic viewing apparatus.
Fig. 3 is a perspective view illustrating the lens barrel.
Fig. 4 is a perspective view illustrating an internal structure of the lens barrel.
Fig. 5 is a front view showing an internal structure of the lens barrel.
Fig. 6 is a side view showing an internal structure of the lens barrel.
Detailed Description
Fig. 1 to 6 are diagrams showing preferred embodiments of the present invention. In the following description, X in fig. 1 is a left-right direction (horizontal direction), Y in fig. 2 is a front-back direction (horizontal direction), and X and Y are perpendicular to each other.
The holder device 1 is installed in an operating room, and includes a base 2 and a holder main body 3. The base 2 has lockable casters 4, is movable on the floor in an unlocked state, and is fixable at a desired position on the floor in a locked state.
The stand body 3 is provided on the base 2 and is rotatable about a vertical axis V1. The middle portion of the trailing arm 5 is pivotally supported on the left side surface of the stand body 3 so as to be able to tilt forward and backward about a horizontal axis H1 formed by a pivot support point a. The trailing arm 5 is made of a casting and has a hollow shape that is long up and down.
The base end side of the arm 6 is pivotally supported at the upper end of the trailing arm 5 via a pivot support point b so as to be vertically rotatable. The crossbar 6 is formed of a bent-shaped metal pipe extending in the transverse direction. A bottom arm 7 extending rearward is provided below the trailing arm 5, and a weight W is attached to an end of the bottom arm 7. The end of the lateral arm 6 is connected to the middle of the bottom arm 7 by a longitudinal auxiliary arm 8. Thereby forming a longitudinal parallel linkage comprising a longitudinal arm 5 and a longitudinal auxiliary arm 8.
The lower end of the base end arm 9 is pivotally supported at a pivot point b above the trailing arm 5, and the middle portion of the tip end arm 10 is pivotally supported at the tip end of the lateral arm 6. The upper ends of the base end arms 9 and the top end arms 10 are connected by straight transverse auxiliary arms 11. Thereby forming a transverse parallel linkage comprising the cross arm 6 and the transverse auxiliary arm 11. The base end arm 9 is configured to always maintain a vertical state by the internal structure of the trailing arm 5.
A case 12 rotatable about a vertical axis V2 is provided at a lower portion of the distal arm 10. The lens barrel 15 is supported by the case 12 via the two auxiliary arms 13 and 14. The auxiliary arm 13 is fixed to the case 12 at an upper end thereof, and the other auxiliary arm 14 is L-shaped and supported at a lower end of the auxiliary arm 13 to be rotatable about the inclined axis T. The lens barrel 15 is supported rotatably about a horizontal axis H2 at the lower end of the L-shaped auxiliary arm 14. The vertical axis V2, the tilt axis T, and the horizontal axis H2 intersect at a point substantially coincident with the center of gravity of the lens barrel 15. The lens barrel 15 is supported by a so-called gimbal mechanism via 3 rotation axes, and the direction thereof can be freely changed by operating the handles 16 on both the left and right sides of the lens barrel 15 at this position.
As described above, the vertical arm 5 and the horizontal arm 6 that support the lens barrel 15 are all attached to the left side surface of the holder main body 3 in fig. 1.
An arm (horizontal arm) 19 composed of two long and short rectangular block-shaped arm bodies 17 and 18 extends in the left-right direction (horizontal direction) of the holder body 3 to the opposite side of the trailing arm 5. This positional relationship is always maintained even if the holder main body 3 is rotated about the vertical axis V1. The mounting portion of the arm body 17 to the holder body 3 and the mounting portions of the arm bodies 17 and 18 are connected to each other so as to be rotatable about a vertical axis, and are foldable in the horizontal direction but restricted in movement in the vertical direction.
The monitor device 20 is supported by the tip of the arm 19. The monitor device 20 is typically of a 32-inch liquid crystal panel type, and is rotatable about a vertical axis with respect to the tip of the arm 19. The monitor device 20 displays a stereoscopic image of the surgical field R captured by the lens barrel 15. The operator, an assistant, and the like can stereoscopically observe the stereoscopic image displayed on the monitor device 20 by wearing the dedicated glasses 21.
Next, the internal structure of the lens barrel 15 will be explained.
The lens barrel 15 is configured to be capable of stereoscopic image pickup, and has two left and right optical paths L formed therein. An objective optical system 22 including 3 lenses is provided at a lower portion of the lens barrel 15. A surgical field R as an observation target exists on an optical axis K of the objective optical system 22. The objective optical system 22 can make the focal length variable from 300mm to 1000mm by making a part of the lens movable. The objective optical system 22 is shaped to be removed from the front and rear sides, and an arc-shaped notch 24 partitioned by a light shielding plate is formed on the rear side.
The illumination unit 25 is provided in the notch 24 in a state of being internally housed in the lens barrel 15. The optical axis S of the illumination unit 25 is set at a predetermined angle θ with respect to the optical axis K of the objective optical system 22. The illumination unit 25 is built in with an LED light source and white illumination light E can be illuminated from a direction inclined with respect to the surgical field R. Further, the angle of the illumination unit 25 is configured to change in conjunction with the focal length of the objective optical system 22 by a rotation structure not shown, and the main axis direction of the illumination light E is configured to always face the center of the surgical field R.
Although the illumination unit 25 is provided inside the lens barrel 15, it may be provided outside the lens barrel 15, and the illumination light E may be guided into the lens barrel 15 through an optical fiber to illuminate the surgical field R from the lens barrel 15, or the illumination unit 25 itself may be attached to the outer surface of the lens barrel 15 and illuminate the surgical field R there.
A pair of right and left variable power optical systems 26 along the two optical paths L are provided above the objective optical system 22. With the variable magnification optical system 26, magnification up to 40 times is possible. The optical path L is guided to an image pickup device (CCD)28 through an imaging lens 27. The image pickup element 28 is typically a CCD area image sensor. In this embodiment, the objective optical system 28, the magnification-varying optical system 26, and the imaging lens 27 constitute an "optical unit", and the imaging device 28 constitutes an "imaging unit".
When the illumination light E from the illumination unit 25 is irradiated to the surgical field R, the reflected light of the surgical field R is guided to the objective optical system 22. The main component of the reflected light at this time is diffuse reflected light (backward scattered light), and the normally reflected light (forward scattered light) containing a strongly scattered component does not return directly to the objective optical system 22 (see fig. 6) because the illumination unit 25 has the angle θ.
The reflected light guided into the objective optical system 22 passes through the variable magnification optical system 26 along the optical path L, and is then received by the two image pickup devices 28, thereby obtaining a left-eye image and a right-eye image having a parallax therebetween. The left and right images having binocular parallax are synthesized by the controller 29 as a stereoscopic image signal and displayed on the monitor device 20. The display of the monitor device 20 is observed with the special spectacles 21, so that the surgical field R can be observed stereoscopically. When the surgical field R is imaged by the imaging device 28, as described above, the specular reflection portion in the surgical field R does not directly enter the objective optical system 22, and therefore, adverse effects on the imaging device 28 can be avoided.
Next, an actual operation method in the operating room of the stereoscopic viewing apparatus will be described.
The lens barrel 15 is located close to the surgical field R, and since the hand of the operator touches the handle 16, the lens barrel 15 and its peripheral portion are covered with the sterilizing cloth 30. Specifically, the lens barrel 15 is continuously covered with the sterilizing cloth 30 from the upper side of the trailing arm 5. The monitor device 20 is located at a position away from the lens barrel 15 by the arm 19, and furthermore, is not covered with the sterilizing cloth 30 since it does not see a display if it is itself covered with the sterilizing cloth 30.
Since the monitor device 20 is a device in which the arm 19 can be folded freely in the horizontal direction, the position and the direction of the monitor 20 can be set to the most preferable state by adjusting the degree of folding.
Since the monitor device 20 is located far from the stand main body 3, a large size (32 feet) is adopted in order to ensure its visibility. Therefore, although having a certain weight, since the monitor device 20 is positioned by the arm 19 on the opposite side of the lens barrel 15, the trailing arm 5, and the lateral arm 6, which are other heavy objects, it is possible to achieve a weight balance about the stand body 3 without specially providing a balance weight.
Therefore, even if the holder main body 3 is not a large and robust device, both the lens barrel 15 and the monitor device 20 can be supported in a stable state. Further, since the holder main body 3 supporting the lens barrel 15 and the like and the monitor device 20 is rotatable about the vertical axis V1 with respect to the base 2, the weight balance between the left and right sides does not change even if the holder main body 3 is rotated, and therefore the stable supporting state of the lens barrel 15 and the like and the monitor device 20 does not change.
Further, since the trailing arm 5 and the lateral arm 6 are of a balanced type structure in which the weight of the lens barrel 15 is balanced by the balance weight W, the weight balance about the holder main body 3 can be achieved not only in the left-right direction but also in the front-rear direction, and the holder device 1 is in a more stable state.
The monitor device 20 can be folded to be brought close to the housing state of the stand body 3 when not in use or when being transported.
In the above embodiment, the monitor device 20 is used as an example of wearing a dedicated eye for observation, but the present invention is not limited to this, and a monitor device that allows a naked eye to stereoscopically observe may be used.
According to the technical aspect of the present invention, since the vertical arm, the horizontal arm, and the lens barrel are provided on one lateral side surface of the stand body in the left-right direction, and the monitor device is provided at the tip end of the arm extending to the other lateral side, it is possible to balance the left-right weight about the stand body, and to allow the monitor device to be supported by a small stand body even in a large-sized monitor device. Since the stand main body is rotatable about a vertical axis with respect to the base, the weight balance does not change even when the stand main body is rotated left and right.
Further, since the trailing arm and the lateral arm are of a balanced type structure in which the weight of the lens barrel is offset by the counterweight, the weight balance of the front and rear portions around the holder main body can be achieved, and the holder device can be in a more stable state.
Further, since the arm is foldable in the horizontal direction, the position and direction of the monitor device can be adjusted by the degree of folding, and the arm is folded when not in use or when being transported, so that the monitor device is brought close to the stand body and brought into a storage state.
Furthermore, since the angle of the illumination unit does not coincide with the optical axis of the objective optical system, it is difficult for the specular reflection component reflected in the surgical field to return directly to the objective optical system, and adverse effects on the imaging unit can be avoided.
Claims (4)
1. A surgical stereoscopic viewing device comprising: a lens barrel (15) that houses optical units (22, 26, 27) for obtaining a stereoscopic optical image of a surgical field, and an imaging unit (28) for imaging the stereoscopic optical image obtained by the optical units and outputting a stereoscopic image signal; a holder device (1) that is freely movable to an arbitrary position in a state of supporting the lens barrel; and a panel type monitor device (20) for displaying a stereoscopic image based on the stereoscopic image signal output from the imaging means,
the stereoscopic viewing device for operation is characterized in that,
the support device comprises a base (2) arranged on the floor, and a support main body (3) which can freely rotate around a vertical shaft relative to the base,
a vertical arm (5) and a horizontal arm (6) are arranged on one side surface of the bracket main body in the left-right direction (X), the vertical arm is mounted in a way that the middle part can freely tilt forwards and backwards (Y) by taking a horizontal shaft (H1) as the center, the base end side of the horizontal arm is supported on the upper end of the vertical arm by a shaft and extends in the horizontal direction, a lens barrel (15) is held at the top end of the horizontal arm, in addition,
an arm (19) extending to the other side of the bracket body in the left-right direction (X) and holding a monitor device (20) at the top end is arranged on the bracket body,
the vertical arm (5), the horizontal arm (6), and the lens barrel (15) are balanced with the monitor device (20) in weight on the left and right with respect to a stand body.
2. The surgical stereoscopic viewing device of claim 1,
the vertical arm and the horizontal arm have a balanced structure for offsetting the weight of the lens barrel by a balance weight (W).
3. The surgical stereoscopic viewing device according to claim 1 or 2,
the arm (19) is configured to be freely folded in the horizontal direction.
4. The surgical stereoscopic viewing device according to claim 1 or 2,
the optical unit (22, 26, 27) includes at least 1 objective optical system (22) and a variable magnification optical system (26) through which a pair of right and left light beams (L) passing through the objective optical system pass,
the image pickup unit (28) includes a pair of left and right image pickup elements for receiving the light beam having passed through the variable magnification optical system,
the lens barrel (15) is provided with an illumination unit (25) that can illuminate illumination light (S) on a surgical field (R) at an angle (theta) different from the optical axis (K) of the objective optical system (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015225291A JP2017093478A (en) | 2015-11-18 | 2015-11-18 | Stereoscopic observation apparatus for surgery |
| JP2015-225291 | 2015-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106842532A CN106842532A (en) | 2017-06-13 |
| CN106842532B true CN106842532B (en) | 2020-12-22 |
Family
ID=58805052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611012783.0A Expired - Fee Related CN106842532B (en) | 2015-11-18 | 2016-11-17 | Stereoscopic observation device for operation |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2017093478A (en) |
| CN (1) | CN106842532B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200054411A1 (en) * | 2018-08-20 | 2020-02-20 | Mitaka Kohki Co., Ltd. | Surgical microscope apparatus |
| JP2020028702A (en) * | 2018-08-20 | 2020-02-27 | 三鷹光器株式会社 | Surgical microscope apparatus |
| CN112220568A (en) * | 2020-09-23 | 2021-01-15 | 苏州速迈医疗设备有限公司 | Microsurgery auxiliary device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106842532A (en) | 2017-06-13 |
| JP2017093478A (en) | 2017-06-01 |
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