JPH01171544A - Transfer device for perfusing fluid container - Google Patents

Abstract

PURPOSE:To facilitate the minute adjustment of a height by adjusting the height of the title perfusing fluid container in a step way and continuously. CONSTITUTION:A vitreous body surgery device has a sucking device 1, a cutter driving unit 2, a light source unit 3, a perfusing fluid bottle 4, a transfer device 40 for the perfusing fluid bottle 4, a cutter 5 with a sucking function, a light guide 6, and a perfusion plug 7. A motor 44 is used for the transfer of the perfusing fluid bottle 4, a foot switch 46 can be indicated to continuously operate the motor 44, to continuously transfer the perfusing fluid bottle 4, to change its height, in addition, it can be indicated to operate the motor 44 for a prescribed time, and to transfer the perfusing fluid bottle 4 at every prescribed height.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a device for moving a container for perfusing an eyeball with irrigation fluid during vitreous surgery.

M] Retirement L The perfusate bottle is usually hung on a stand. By changing the height of the irrigant bottle on this stand, the volume and pressure of the irrigant flowing into the eyeball can be adjusted according to the surgical situation.

The height of the perfusion bottle is adjusted in a conventional manner.

■ The nurse manually moves the perfusion bottle once according to the surgeon's instructions.

■ The operator or the nurse steps on the foot switch, and while the foot switch is pressed, the motor is simply rotated continuously, and the irrigant bottle is moved by the force of the motor and set to the approximate position.

However, in the former method, ■ the operator verbally tells the nurse the approximate amount of movement;
The nurse moves the device as necessary according to the instructions, so it takes time to fix it in the right position.

■ Difficult to fine-tune.

In addition, the latter method cannot handle sudden and accurate changes in perfusion volume due to surgical circumstances.

■ In order to adjust the height based on the surgeon's experience, the surgeon must check the height of the perfusion bottle every time, which interrupts the surgery.

■ If an assistant such as a nurse performs the work, it is necessary to train excellent assistants.

Purpose of the Invention This invention solves the above-mentioned drawbacks, reduces interruptions in vitrectomy surgery, and provides an irrigation fluid container that allows fine adjustment of the bottle height and accurately responds to sudden changes in the irrigation port. The purpose is to provide a mobile device.

11 Sad L [ This invention is summarized in claim 1.

-1, the only way to solve the problem is to refer to Figure 1. The height of the perfusate bottle 4, which is an example of a perfusate container, can be set by a moving device 40.

A motor 44, which is an example of a drive source, is used to move the irrigation fluid bottle 4. A foot switch 46, which is an example of a switch means, continuously operates the motor 44 to continuously move the irrigation fluid bottle 4 to change its height, and operates the motor 44 for a predetermined period of time to move the irrigation fluid bottle 4 to a predetermined height. It is possible to instruct it to move step by step.

"W" Operate the foot switch 46 to continuously change the height of irrigation fluid bowls 1 to 4, and when they approach the predetermined position, operate the foot switch 46 again. The height of the perfusate bottle 4 is finely adjusted.

[Vitrectomy Apparatus 11 FIG. 1 shows a vitrectomy neck equipped with a clear fluid container moving device according to the present invention.

In vitrectomy, for example, the cloudy part Iζ of the gel-like vitreous body 14 between the crystalline lens a and the retina (hereinafter referred to as an aspirate 34) is removed by suction and replaced with a clear liquid. This allows light to pass through the crystalline lens a and reach the retina, thereby improving visual acuity.

The vitrectomy apparatus includes a suction device 1, a cutter drive unit 2, a light source unit 3, and an irrigant bottle 4. It has a moving device 40 for an irrigation fluid bottle 4, a cutter 5 with a suction function, a light guide 6, and an irrigation plug 7.

The cutter 5 has an insertion portion 5a. This insertion portion 5a is inserted into the inside of the eyeball 13 through the sclera 15 of the eyeball 13.

A suction port 30 is provided at the distal end of the insertion portion 5a. The cutter 5 removes the suction object 34 that has entered the suction port 30.
can be removed. This excised object to be aspirated 34 can be suctioned into the suction device 1 side through the insertion portion 5a and the first passage 8.

A compressed air tube 9 is connected to the cutter drive unit 2. Compressed air is sent to the cutter 5 through the tube 9, and the cutter 5 is actuated by the compressed air to cut off the object to be sucked 34. The light source unit 3 is capable of sending light to the light guide 6 via an optical fiber 11. The tip of the light guide 6 is inserted into the eyeball 13. The light guide 6 can illuminate the vicinity of the suction port 3°.

The perfusion bottle 4 contains perfusion fluid.

This irrigation fluid can be delivered into the eyeball 13 via the irrigation tube 12 and irrigation plug 7. After the object to be aspirated 34 is excised and suctioned, this irrigation fluid instead fills the inside of the eyeball 13 to restore intraocular pressure.

Note that the eyeball 13 is . It is thicker than the perfusate bottles I to 4 and the moving device 40 (illustrated).

[Moving device 40] The moving device 4041 shown in FIG. 1 includes a support 41, a hook 42, a base 43, a motor 44, a wire 45, and a foot switch 46.

A hook 42 is movably attached to the support 41. A wire 45 is attached to the hook 42. The loop-shaped wire 45 is attached to a roller 47 and a pulley 50 of the motor 44. The motor 44 of the base 43 is electrically connected to the foot switch 46 by a cord 51. Motor 44 is, for example, a stepping motor.

[Foot switch 46] As shown in FIG.
and a step portion 56. The step part 56 can be moved in the direction of the arrow in a see-saw shape about the pin 57 with respect to the base part 55. In other words, it is possible to step in the direction of the first stage A1 and the second stage A2, and between the first stage B1 and the second stage B2.

[Control System] Referring to FIG. 3, the foot switch 46 includes a switch section 6'1 corresponding to the first stage A1 and second stage A2 in FIG.
．． 62, and switch sections 63 and 64 corresponding to the first stage B1 and second stage B2 in FIG. 2 are provided.

The control signal generation circuit 70 is connected to the switch section 61.62.6.
3.64 are electrically connected. The control signal generation circuit 70 can control the rotational direction and rotation amount of the motor 44 via the motor control circuit 71 based on the signals from the respective switch sections 61 to 64.

When the switch section 61 shown in FIG. 3 is turned on, an on control signal NCI is outputted to the amount control signal generation circuit 70 which is turned on as shown in FIG. As a result, a motor control signal is applied from the control signal generation circuit 70 to the Tanabata control circuit 71. Therefore, the motor 44 continues to rotate for the time T1.

When the switch section 62 is turned on, a pulsed ON control signal NC2 as shown in FIG. 5 is output to the control signal generation circuit 70. As a result, a 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 predetermined time T2, but immediately stops thereafter.

When the switch 63 is turned on, as shown in FIG. 6, while the switch 63 is on, an ON control signal @NC3 is outputted to the control signal generating circuit 70 as shown in FIG. 4. As a result, a 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 in reverse for the time T3.

When the switch section 64 is turned on, a pulsed ON control signal NC4 as shown in FIG. 7 is output to the control signal generation circuit 70. As a result, a 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 predetermined time T4, but
Then it stops.

[Vitreous Surgery] During the vitreous surgery, after the object to be aspirated 34 shown in FIG. 1 is suctioned into the suction device 1, the eyeball 13 is filled with irrigation fluid to restore intraocular pressure.

On this occasion. So that the irrigation fluid can satisfactorily fill the eyeball 13 from the irrigation fluid bottle 4 into the eyeball 13 at a predetermined pressure. Adjust the height of the perfusate bottle 4.

When the operator or the like wishes to raise the height of the irrigation fluid bottle 4, the foot switch 46 shown in FIG. 2 is depressed to the second stage A2.

Due to this. The perfusate bottle 4 is raised by a predetermined amount in a stepwise manner to perform coarse adjustment. When you reach the approximate target height, step on the first step A1. The perfusate bottle 4 is raised continuously. In this way, raise it to a predetermined height while making fine adjustments.

On the other hand, if the operator or the like wishes to lower the height of the irrigation fluid bottle 4, the operator depresses the foot switch 46 to the second step B2 in FIG. As a result, the irrigant bottle 4 is lowered by a predetermined amount in a stepwise manner, and coarse movement adjustment is performed. Once you have descended to the approximate target height, step on the first stage B1. The perfusate bottle 4 is continuously lowered. In this way, it is lowered to a predetermined height while making fine adjustments.

By the way, this invention is not limited to the above-mentioned embodiment. For example, a switch section for continuous up and down operation and a switch section for raising and lowering in steps may be provided in separate foot switches. A motor that operates continuously and stepwise may be used. Other types of actuators may be used as the drive source.

Further, the perfusate container may not only be moved up and down in the vertical direction, but may be moved along a direction inclined at a predetermined angle with respect to the vertical direction.

Note that it is preferable to provide the support with a scale indicating the height.

m and Tachisato - According to the present invention, since continuous operation is possible in addition to step-like operation, fine adjustment of the height of the irrigation fluid container is possible. Additionally, the height can be precisely adjusted without interrupting the surgery for a long time.

Even when it is necessary to suddenly change the height of the irrigation fluid container due to surgical circumstances, this can be done accurately.

This reduces the burden on the surgeon and allows him to concentrate on the surgery.

[Brief explanation of the drawing]

Fig. 1 is a diagram of a vitrectomy apparatus equipped with an irrigation fluid container moving device of the present invention, Fig. 2 is a perspective view of a foot switch, Fig. 3 is a diagram showing a control system, and Figs. 4 to 7. FIG. 2 is a diagram showing an on control signal and a motor control signal. 4...Irrigation fluid bottle 40...Movement device 41...Strut 42...Hook 44...Motor 46...Foot switch Figure 2 Figure 3 Factor 4 Figure 5 Figure 6 Figure 7

Claims (3)

[Claims] 1. In a moving device that sets the height of an irrigation solution container by moving an irrigation solution container containing an irrigation solution using a drive source, the drive source is continuously operated to continuously move the irrigation solution container, and the drive source is 1. A device for moving an irrigation fluid container, comprising switch means that operates for a predetermined period of time and instructs to move the irrigation fluid container by a predetermined height. 2. 2. The irrigation fluid container moving device according to claim 1, wherein said switch is a foot switch. 3. The perfusate container moving device according to claim 1, wherein the drive source is a stepping motor.