JP2707263B2 - Perfusion solution container transfer device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for moving a container for perfusing an eye with a perfusate in vitreous surgery. BACKGROUND OF THE INVENTION Perfusate bottles are usually suspended from stands. By changing the height of the perfusate bottle along this stand, the amount and fluid pressure of the perfusate flowing to the eyeball are adjusted according to the situation of the operation. Conventionally, the height of the perfusate bottle is adjusted as follows. The nurse manually moves the perfusion bottle according to the operator's instructions. The surgeon or nurse steps on the foot switch, and during this step, the motor is simply continuously rotated, and the perfusion liquid bottle is moved by the power of the motor, so that the bottle is set at the approximate position. Problems to be Solved by the Invention However, in the former method, the surgeon verbally communicates the approximate amount of movement to the nurse,
Since the nurse moves the necessary amount according to the instruction, it takes time to fix the position in a proper position. Difficult to fine-tune. In addition, the latter method cannot cope with sudden and accurate changes in perfusion due to the convenience of surgery. In order to adjust the height from the surgeon's experience, the surgeon must check the height of the perfusion bottle every time, during which the operation is interrupted. When assistants such as nurses perform, it is necessary to train excellent assistants. OBJECTS OF THE INVENTION The present invention overcomes the above-mentioned drawbacks, reduces the interruption of vitreous surgery, facilitates fine adjustment of bottle height, and can accurately cope with sudden changes in perfusion rate. The purpose of the present invention is to provide a mobile device. SUMMARY OF THE INVENTION The present invention provides a moving device for setting a height of a perfusate container by moving a perfusate container containing a perfusion solution by a driving source, wherein a switch means for moving the perfusate container and a switch means are operated. During the operation, the perfusion liquid container is moved to perform continuous fine movement adjustment of the perfusion liquid container, and the perfusion liquid container is moved in a stepwise manner by a predetermined amount according to the operation of the switch means, so that the perfusion liquid container is moved stepwise. And a control unit for performing a coarse adjustment. Means for Solving the Problem Reference is made to FIG. The height of the perfusate bottle 4, which is an example of the perfusate container, can be set by the moving device 40. A motor 44 as an example of a drive source is for moving the perfusate bottle 4. The foot switch 46, which is an example of the switch means, continuously operates the motor 44 to continuously move the perfusion liquid bottle 4 to change the height, and furthermore, operates the motor 44 for a predetermined time to raise the perfusion liquid bottle 4 to a predetermined height. It is possible to give an instruction to move it one by one. Operation The foot switch 46 is operated to greatly change the height of the perfusate bottle 4 in a stepped manner. When the height approaches a predetermined position, the foot switch 46 is further operated to continuously reduce the height of the perfusate bottle 4. adjust. Embodiment [Vitreous Surgery Apparatus 1] FIG. 1 shows a vitreous surgery apparatus having a perfusion solution container moving device according to the present invention. In vitreous surgery, for example, a turbid portion (hereinafter, referred to as an object to be aspirated) of the gel-like vitreous body 14 between the crystalline lens a and the retina b is removed by suction and replaced with a transparent liquid. This allows light to pass through the crystalline lens a and reach the retina b, thereby achieving visual acuity recovery. The vitreous surgery apparatus includes a suction device 1, a cutter driving unit 2, a light source unit 3, a perfusion solution bottle 4, a moving device 40 for the perfusion solution bottle 4, a cutter 5 with a suction function, a light guide 6, and a perfusion plug 7. I have. The cutter 5 has an insertion portion 5a. The insertion portion 5a is inserted into the eyeball 13 through the sclera 15 of the eyeball 13. A suction port 30 is provided at the tip of the insertion section 5a. The cutter 5 can cut off the suction object 34 entering the suction port 30. The cut object to be suctioned 34 can be sucked into the suction device 1 through the insertion portion 5a and the first passage 8. The compressed air tube 9 is connected to the cutter drive unit 2. The compressed air is sent to the cutter 5 via the tube 9, and the cutter 5 is operated by the compressed air to cut off the suctioned object 34. The light source unit 3 can send light to the light guide 6 via the optical fiber 11. The tip of the light guide 6 is the eyeball 13
Is inserted inside. And the light guide 6 is the suction port
It can shine light around 30. The perfusion bottle 4 contains a perfusion solution. The perfusate is supplied to the eyeball 13 via the perfusion tube 12 and the perfusion plug 7.
It can be sent inside. This perfusate is intended to replenish the inside of the eyeball 13 and recover intraocular pressure after excision and aspiration of the object 34 to be aspirated. The eyeball 13 is drawn larger than the perfusion liquid bottle 4 and the moving device 40. [Moving Device 40] The moving device 40 shown in FIG.
3. It has a motor 44, a wire 45 and a foot switch 46. A hook 42 is movably mounted on the column 41. A wire 45 is attached to the hook 42. The loop-shaped wire 45 is attached to the roller 47 and the pulley 50 of the motor 44. The motor 44 of the base 43 is
51 are electrically connected. The motor 44 is, for example, a stepping motor. [Foot Switch 46] The foot switch 46 has a base 55 and a step 56 as shown in FIG. The step portion 56 can be moved in the direction of the arrow in a seesaw shape about the pin 57 with respect to the base portion 55. That is, it is possible to step in the directions of the first step A1 and the second step A2, and the first step B1 and the second step B2. [Control System] Referring to FIG. 3, the foot switch 46 includes switch units 61 and 62 corresponding to the first stage A1 and the second stage A2 in FIG.
Switch units 63 and 6 corresponding to the first stage B1 and the second stage B2 in FIG.
4 are provided. The control signal generation circuit 70 is electrically connected to the switch units 61, 62, 63, 64. The control signal generation circuit 70 can control the rotation direction and the rotation amount of the motor 44 via the motor control circuit 71 based on the signals of the switch units 61 to 64. When the switch section 61 shown in FIG. 3 is turned on, an ON control signal NC1 is output to the control signal generation circuit 70 as shown in FIG. As a result, the motor control signal is provided from the control signal generation circuit 70 to the motor control circuit 71. Therefore, the motor 44 continues to rotate for the time T1. When the switch section 62 is turned on, a pulse-like ON control signal NC2 as shown in FIG. As a result, the motor control signal is provided from the control signal generation circuit 70 to the motor control circuit 71. Therefore, the motor
44 continues to rotate for a predetermined time T2, but stops immediately thereafter. When the switch 63 is turned on, the control signal generation circuit 70
As shown in the figure, during the ON state, the ON control signal NC3 is output to the control signal generation circuit 70 in the same manner as in FIG. As a result, the motor control signal is provided from the control signal generation circuit 70 to the motor control circuit 71. Therefore, the motor
44 continues to rotate backward by the time T3. When the switch section 64 is turned on, a pulse-like ON control signal NC4 as shown in FIG. As a result, the motor control signal is provided from the control signal generation circuit 70 to the motor control circuit 71. Therefore, the motor
44 continues to rotate reversely for a predetermined time T4, but then stops. [Vitreous Surgery] At the time of vitreous surgery, after the suction target 34 shown in FIG. 1 is sucked into the suction device 1, the eyeball 13 is filled with a perfusate to restore intraocular pressure. At this time, the perfusion fluid can be filled from the perfusion fluid bottle 4 into the eyeball 13 with a predetermined pressure in a satisfactory manner.
Adjust the height of the perfusate bottle 4. When the surgeon raises the height of the perfusate bottle 4,
The foot switch 46 in FIG. 2 is depressed to the second step A2. As a result, the perfusate bottle 4 is raised by a predetermined amount in a stepwise manner, and coarse adjustment is performed. When you reach the approximate target height,
By stepping on the first stage A1, the perfusate bottle 4 is continuously raised. In this way, it is raised while finely adjusting to a predetermined height. On the other hand, when an operator or the like wants to lower the height of the perfusate bottle 4, the operator steps down to the second step B2 of the foot switch 46 in FIG. As a result, the perfusate bottle 4 is lowered by a predetermined amount in a stepwise manner, and coarse movement adjustment is performed. When it has reached the approximate target height, step on the first stage B1 and lower the perfusate bottle 4 continuously. In this way, it is lowered while finely adjusting it to a predetermined height. The present invention is not limited to the above embodiment. For example, a switch unit for continuous play and a switch unit for stepping up and down may be provided in separate foot switches. What is necessary is just to use the motor which operates continuously and stepwise. Another type of actuator may be used as the drive source. In addition to the vertical movement, the perfusate container may be moved along a direction inclined at a predetermined angle with respect to the vertical direction. In addition, it is preferable to provide a scale indicating the height on the support. Effect of the Invention According to the present invention, continuous operation can be performed in addition to the step-like operation, so that the height of the perfusate container can be finely adjusted. In addition, the height can be finely adjusted without interrupting the operation for a long time. Even when it is desired to suddenly change the height of the perfusate container due to the convenience of the operation, it can be performed accurately. Thus, the burden on the operator can be reduced and the operator can concentrate on the operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view of a vitreous surgery apparatus provided with a device for moving a perfusate container of the present invention, FIG. 2 is a perspective view of a foot switch, FIG. 3 is a view showing a control system, 4 to 7 are diagrams showing an ON control signal and a motor control signal. 4 ... perfusion liquid bottle 40 ... moving device 41 ... post 42 ... hook 44 ... motor 46 ... foot switch

Claims (1)

(57) [Claims] In a moving device for setting a height of a perfusion liquid container by moving a perfusion liquid container containing a perfusion liquid by a driving source, a switch means for moving the perfusion liquid container, and a perfusion liquid container while the switch means is operated. The control unit performs continuous fine movement adjustment of the perfusion liquid container by moving the irrigation liquid container, and moves the perfusion liquid container in a stepwise manner by a predetermined amount according to the operation of the switch means to perform step-type coarse adjustment of the perfusion liquid container. A device for moving a perfusate container, comprising: 2. The device for moving a perfusate container according to claim 1, wherein the switch is a foot switch. 3. The apparatus for moving a perfusate container according to claim 1, wherein the drive source is a stepping motor.