JPH0530415Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a photo-surgical device for a surgical microscope in which a photo-therapeutic unit is removably connected to the surgical microscope.

[Prior Art] As an ophthalmological phototherapeutic surgical device, a device in which a laser optical system is incorporated into a narrow light microscope is known. This narrow light microscope is arranged exclusively for the laser treatment device.

Since this type of surgery requires the patient to remain seated in a certain position, it is not suitable for time-consuming or complicated surgeries.

Therefore, a laser treatment device for surgical microscopes has recently been developed.

Incidentally, although a surgical microscope is a device widely used during surgery, it is not reasonable to use a surgical microscope exclusively for lasers because it is expensive and difficult to move.

Therefore, in this type of device, a phototherapy unit for a surgical microscope can generally be attached to and removed from an existing surgical microscope as necessary.

FIG. 3 is a schematic explanatory diagram of a conventional device.

If laser surgery such as coagulation or incision is required, the laser treatment unit is attached to the surgical microscope 1 using a relay unit for the surgical microscope, and the laser beam is made coaxial with the observation system. The operator 20 moves the spot position of the laser beam by moving the manipulator lever 7 located in front of the operator back and forth (or up and down) and left and right while looking into the microscope barrel 21.

[Problems with the Prior Art] However, there is a problem in arranging the laser treatment unit, especially the manipulator lever, on the operator's side as in the conventional apparatus. The reason why the conventional device places the manipulator lever on the side in front of the operator is that it cannot be moved to either the left or the right, taking into consideration the difference in the operator's dominant hand. However, if the manipulator lever is located in front of the operator, it becomes an obstacle when the operator attempts to observe the patient's eye directly during surgery without using a surgical microscope.

The purpose of this invention is to solve the problems of the conventional device mentioned above.
To provide a device with good operability, in which an operating lever can be placed at a position that does not obstruct the operator's direct observation of a patient's eye, regardless of the difference in the handedness of the operator.

[Structure of the invention] In order to achieve the above object, the present invention provides a photosurgical device for a surgical microscope, in which a phototherapy unit is attached to a surgical microscope via a relay unit, and the affected area is subjected to phototherapy while being observed with the surgical microscope. The present invention is characterized in that the holding member, which is a component of the relay unit and holds the phototherapy unit, is formed to be rotatable around the optical axis of the objective lens of the surgical microscope.

In addition, in a photosurgical device for a surgical microscope in which a phototherapy unit is attached to a surgical microscope via a relay unit and the affected area is treated with light while being observed with the surgical microscope, a phototherapy unit is installed in the phototherapy unit to change the position of light irradiation. A mirror swinging lever, a holding member for holding the phototherapy unit which is a component of the relay unit and is rotatable around the optical axis of the objective lens of the surgical microscope, and a mirror swinging lever based on the rotational position of the holding member. The present invention is characterized in that an adjustment mechanism is provided for adjusting the operating direction of the movable lever and the moving direction of the mirror.

[Embodiments of the invention] Hereinafter, embodiments of the invention will be described based on the drawings.

Laser treatment unit movement mechanism FIG. 1 is an external view of one embodiment.

The operator is shown positioned in front of the drawing, and the laser treatment unit is positioned to the right of the operator.

1 is a microscope unit section, 2 is a laser treatment unit section, and 3 is a relay unit section.

4 is a fiber for guiding the laser to the laser treatment unit, and 5 is an electrical connection cable. 6 is an operator protection filter that protects the operator from laser light.

7 is a manipulator lever for moving the spot position of the laser beam, and 8 is a hand rest for stabilizing the operation of the manipulator lever.

FIG. 2 is a component diagram of the relay unit section.

9 is a bracket for fixing the relay unit to the microscope body, and 10 is a laser treatment unit part 2.
This is a laser treatment unit holding part having a holding part 11 for holding the laser treatment unit, and is rotatable around the optical axis of the microscope. 12 is a laser treatment unit fixing screw, and 13 is a locking screw for fixing the position of the unit holding part.

14 is a holding part for holding down the laser treatment unit holding part, and 15 is an objective lens of the microscope.

In the laser treatment unit moving mechanism as described above, when the laser treatment unit is used, the objective lens 15 is first removed from the microscope body, and the bracket 9 is screwed into the microscope body and fixed.
Thereafter, the laser treatment unit holding part 10 is attached to the bracket 9 and fixed with the holding part 14.

The pressing part 14 holds the laser treatment unit 1
After the objective lens 15 is attached and fixed to the bracket 9, the objective lens 15 is screwed into the bracket 9 and fixed thereto.

Since the laser treatment unit holding part 10 is rotatable around the optical axis, the laser treatment unit part 2 is set at a position where it can be easily used and fixed with a locking screw 13. If the operator is right-handed, it is usually attached to the right side as viewed from the operator.

Thereafter, the mount of the laser treatment unit part 2 is attached to the holding part 11 of the laser treatment unit holding part 10 and fixed with the fixing screw 12.

Manipulator mechanism In the method of controlling the position of the laser spot by swinging a mirror, the laser spot is rotated around the optical axis, and when the laser treatment unit is placed on the left side or the right side, the visual field that the surgeon wants to move is adjusted. The upward direction and the movement of the manipulator lever may not match.

If the manipulator mechanism is such that even if the laser treatment unit is rotated around the optical axis, it will not affect the relationship between the visual direction that the surgeon wants to move and the movement of the manipulator lever, the manipulator will work. It is sufficient if the lever can be moved to the front side of the operator.

FIG. 4 shows an example of a mechanical rocking mechanism for the mirror in the direction of the arrow. When the manipulator lever 7 is moved from side to side, the cam 3 having the groove shown in FIG.
2, the shaft 33 and plunger 34 are raised or lowered, and along with this, the mirror 30 is moved to the shaft 31.
The laser spot is moved in the left and right directions of the drawing by swinging in the direction of the arrow.

However, if the swinging mirror 30 is also rotated 180° around the optical axis, the direction of movement of the laser spot relative to the movement of the manipulator lever will be reversed.

Therefore, in order to maintain the operability of the device, a mechanism is required to match the movement direction of the laser spot with the movement of the manipulator lever.

Therefore, for example, by making the cam groove V-shaped, the movement of the manipulator lever 7 can be adjusted so that the cam groove is used differently depending on when the laser treatment unit is placed on the left side and when it is placed on the right side. That is, the rising or falling of the plunger 34 with respect to the moving direction of the shaft 33 may be reversed.

Furthermore, when using an IC or the like, the program is rearranged so that it is inverted automatically or by switching a switch at a predetermined position.

[Effects of the device] As is clear from the above explanation, the phototherapy unit can be moved to any position that does not interfere with direct observation of the patient's eyes during surgery, so it is possible to A device with good operability that is not affected by differences can be realized.

Further, even if the phototherapy unit is moved to an arbitrary position, the movement of the operating lever and the movement of the treatment light can be adjusted, making the device easy for the operator to operate.

[Brief explanation of the drawing]

Fig. 1 is an external view of one embodiment of the present invention, Fig. 2 is a component configuration diagram of the relay unit, Fig. 3 is a schematic illustration of a conventional device, and Fig. 4 is a mechanical swing of the mirror in the direction of the arrow. FIG. 5 shows a conventional cam, and FIG. 6 shows a cam for matching the movement direction of the laser spot with the movement of the manipulator lever. 1... Surgical microscope, 7... Manipulator lever, 10... Laser treatment unit holding part, 32
...Cam, 34...Plungeya.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A photo-surgical device for a surgical microscope in which a phototherapy unit is attached to a surgical microscope via a relay unit, and a surgical microscope performs phototherapy while observing the affected area, which is a component of the relay unit. 1. An optical surgical device for a surgical microscope, characterized in that a holding member for holding a phototherapeutic unit is formed to be rotatable around the optical axis of an objective lens of the surgical microscope. 2. In an optical surgical device for a surgical microscope in which a phototherapy unit is attached to a surgical microscope via a relay unit and the affected area is treated with light while being observed with the surgical microscope, a mirror is provided on the phototherapy unit to change the position of light irradiation. A swinging lever, a holding member for holding the phototherapy unit which is a component of the relay unit and is rotatable around the optical axis of the objective lens of the surgical microscope, and a mirror swinging based on the rotational position of the holding member. An optical surgical device for a surgical microscope, characterized in that an adjustment mechanism is provided for adjusting the operating direction of the lever and the moving direction of the mirror.