JPH04337216A - Foot switch for medical therapeutic device - Google Patents

Abstract

PURPOSE:To improve the safety and operability when individual functions among multiple functions of a medical therapeutic device are independently controlled or one or multiple functions are independently controlled. CONSTITUTION:A foot switch 5 has three action switches, one of them is a large main pedal switch 17 arranged on this side, and it is used as a switch concurrently on/off-controlling the ultrasonic vibration, liquid feed and suction, for example. The other action switches are sub-switches 18, 19 arranged on the depth side, the sub-switches 18, 19 are smaller than the main pedal switch 17, they are provided apart from each other, and the switches 18, 19 are used as switches on/off-controlling the liquid feed or suction, respectively, for example.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in foot switches for medical treatment equipment.

0002

[Prior Art] Conventionally, as a medical treatment device, an ultrasonic treatment device has been used to perform treatment by destroying and suctioning stones in body cavities, emulsifying and suctioning living tissue, etc. There is. In addition to the ultrasonic oscillation function using the ultrasonic probe, these ultrasonic treatment devices have a liquid delivery function for cleaning the treatment area, securing the field of view, and cooling the ultrasonic oscillator.
In addition, it generally has a suction function for ejecting the excised site etc. to the outside.

[0003] It is desirable that the three functions mentioned above be controlled by a foot switch so as not to occupy the hands of the therapist. In other words, the use of a foot switch frees up the user's hands and improves operability so that ultrasonic treatment can be performed reliably with the free hand. A conventional foot switch has one pedal switch or two pedal switches of the same size, and is used by assigning one or two of three functions.

[0004] Furthermore, in order to improve the operability not only for ultrasonic therapy but also for other medical treatment devices, and due to the development of medical treatment devices, it is necessary to improve the operability of devices such as laser therapy or cauterization hemostasis treatment. However, it is necessary to use multiple functions such as water supply and suction, and a device with high operability is desired.

[0005]

[Problem to be solved by the invention] However, conventional foot switches have only one or two pedal switches, so all three functions of ultrasonic oscillation, liquid feeding, and suction can be controlled by the foot switch. I couldn't. For this reason, for example, when feeding liquid to clean a treatment area or secure a visual field, the therapist must change hands of the ultrasound probe in order to operate another liquid feeding means (switch). In addition, for example, when using in conjunction with a laparoscopic endoscope, if you only want to perform suction,
There is a disadvantage that it is not possible to control on/off of suction, and if the suction state is continued, the intra-abdominal pressure decreases, making it impossible to continue the surgery. Furthermore, when the pedal switch is two foot switches, the pedals are the same size and are arranged on the left and right. Since the therapist needs to concentrate on the treatment area in order to perform the treatment reliably, he or she rarely presses (operates) the foot switches while looking at them one by one. The drawback is that it is dangerous because there is a risk of stepping on the wrong foot. Furthermore, not only ultrasound therapy, but also laser therapy, ablation and hemostasis therapy, and other devices require the use and control of multiple functions, and conventional foot switches have similar drawbacks in terms of operability and safety. There is.

The present invention has been made in view of the above-mentioned circumstances, and even when controlling each function independently, or one or more functions among a plurality of functions, it is possible to improve safety and operation. The purpose of this invention is to provide a highly functional foot switch for medical treatment equipment.

[0007]

[Means for Solving the Problems] A foot switch for a medical treatment device according to the present invention is provided with a plurality of operation switches corresponding to a plurality of functions in a foot switch for performing control corresponding to a plurality of functions. In addition, at least one of the plurality of operation switches is differentiated from the remaining operation switches.

[0008]

[Operation] With this configuration, at least one of the plurality of operation switches is differentiated from the remaining operation switches to improve safety and operability.

[0009]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 5 relate to one embodiment of the present invention, and FIG.
2 is an external view of the foot switch, FIG. 3 is an explanatory diagram showing the switch mechanism of the foot switch, FIG. 4 is a sectional view of the foot switch, and FIG.
6 is a sectional view showing the operation of the main pedal switch of the foot switch, FIG. 6 is a sectional view showing the mechanism of the sub switch of the foot switch, FIG. 7 is a sectional view showing the operation of the sub switch of the foot switch, and FIG. 8 is a sectional view showing the operation of the sub switch of the foot switch. It is an explanatory view when it is inverted.

As shown in FIG. 1, an ultrasonic treatment device 1 as a medical treatment device has an ultrasonic vibrator (not shown) installed inside its tip, and transmits vibrations of the ultrasonic vibrator to a treatment area. A hand piece 3 to which a probe 2 is detachably connected, a drive device 4 that controls ultrasonic vibration, liquid feeding, suction, etc., and a hand piece 3 connected to this drive device 4 via a foot switch cable 5a, It is equipped with a foot switch 5 for on/off control of sonic vibration, liquid feeding, and suction, and a movable storage cart 6 on which this drive device 4 is placed.

The probe 2 includes a plurality of types having different tip shapes and lengths, for example, probes 2a, 2b, and 2c shown in the figure.
The handpiece 3 has multiple types of probes 2a,
2b and 2c are selectively connected.

A shielded cable 7 extends from the rear end of the handpiece 3, and a connector 8 is provided at the end of the shielded cable 7. This connector 8 is
It is designed to be detachably connected to the receptacle 9 of the drive device 4. Further, from the rear end side of the hand piece 3, a first liquid feeding tube 10 is connected to a liquid feeding port and a suction port (not shown) provided at the tip of the probe 2, respectively.
a, and a first suction tube 11a are extended.

[0013] The drive device 4 includes a first liquid feeding tube 10a.
The liquid feeding roller pump 12 is connected to the liquid feeding roller pump 12 via the second liquid feeding tube 10b.
A liquid feeding bottle 15 connected to 2 is suspended.

The drive device 4 also includes a pinch valve 13 for shutting off/releasing the first suction tube 11a midway.
While the storage cart 6 is provided with a first suction tube 11
a suction pump 15 to which one end of a is connected; and a second suction tube 1 to which one end is connected to the suction pump 15.
A suction material storage tank 16 connected to the other end of 1b is stored therein.

As shown in FIG. 2, the foot switch 5
The foot switch body 20 has a pedal switch 17 as a main switch, a sub-switch for liquid feeding 18, and a sub-switch for suction 19;
It is provided with a handle portion 21 for holding, and a receptacle 5c to which a connector 5b provided at the end of the shielded cable 5a is detachably connected. The pedal switch 17 is turned on by stepping on it with your foot, and turned off when you release your foot.
Depending on the off state, an instruction is given to turn on/off the oscillation, suction, and liquid feeding operations of the ultrasonic transducer. Further, the liquid feeding sub-switch 18 is turned on by stepping on it with a foot, and is turned off when the foot is released. It is designed to turn on/off. The suction sub-switch 19 is turned on by stepping on it with a foot, and turned off when the foot is released.
The suction pinch valve 13 is opened/closed depending on whether the switch 9 is turned on or off.

The main pedal switch 17 is provided on the front side so that it can be easily pressed by the therapist. On the other hand, the sub-switches 18 and 19 are arranged further back than the pedal switch 17 from the perspective of the therapist, and are spaced apart and smaller than the pedal switch 17.

As shown in FIG. 4, the foot switch 5 includes a pedal mechanism 30 constituting the pedal switch 17.
An interlocking mechanism 33 that is interlocked with the movement of the interlocking lever 32 of the pedal switch 17 is provided on the back side of the support incline plate 31. Further, inside the foot switch 5, there is provided a switch board 34 fixed to the inner wall of the upper end portion, and a switch mechanism 35 which constitutes the pedal switch 17 and includes three photointerrupters described later.

The pedal mechanism 30 has a protective rubber surface 36.
a pedal body plate 37 that is covered with a pedal and rotates when stepped on with the foot, and a bellows 38 made of, for example, rubber, which is fixed at one end to the support inclined plate 31 and connected to the protective rubber 36 at the other end.
It is equipped with Further, the pedal mechanism 30 is penetrated by two L angles (not shown) fixed to the support inclined plate 37 and a rotating support shaft 39 whose both ends are fixedly supported by the L angles, and fixed to the pedal body plate 37. and two rotation support pieces 40. Furthermore, the pedal mechanism 30
A spring 41 is provided on the lower end side of the pedal body plate 37 and between the pedal body plate 37 and the support inclined plate 31, and this spring 41 is activated when the pedal body plate is stepped in the direction of the support inclined plate 31. 37 and bellows 38. Therefore, the pedal mechanism 30 rotates around the rotation support shaft 39 by stepping on the pedal body plate 37, and when the foot is released, the pedal body plate 37 returns to its original position due to the restoring force of the spring 41. It has become. Further, in the pedal mechanism 30, one end of the interlocking lever 32 is fixed to the middle of the back surface of the pedal body plate 37, and the other end is movably connected to one end of a transmission shaft 42 that constitutes the interlocking mechanism 33. . In addition, when the pedal mechanism 30 moves up and down, the support inclined plate 3
A lower limit stopper 43 fixed at 1 sets a downward rotation limit. On the other hand, for upward rotation,
The pedal mechanism 30 has an upward rotation limit set by an upper limit stopper receiver 44 fixed to the support inclined plate 31 and an upper limit stopper 45 fixed to the pedal body plate 37.

On the other hand, the interlocking mechanism 33 is a mechanism for converting rotation of the pedal mechanism 30 into linear motion, and includes the transmission shaft 42, a first holding member 46 fixed to the support inclined plate 31, A second holding member 47 is fitted into the first holding member 46 and the transmission shaft 42 is inserted therethrough;
2, and a main shielding plate 48 connected to the tip of the main shield plate 48. The transmission shaft 42 forms a groove (not shown) in the circumferential direction on the rear end side, while the interlocking lever 32 of the pedal mechanism 30
The transmission shaft 42 has a fork-shaped tip.
is engaged with the groove. Therefore, the vertical movement of the interlocking lever 32 of the pedal mechanism 30 is converted into linear motion by the transmission shaft 42 of the interlocking mechanism 33, and the main shielding plate 48 on the distal end side of the transmission shaft 42 is moved back and forth.

Furthermore, as shown in FIG. 3, the switch mechanism 3
5 includes the switch substrate 34, a main photointerrupter 49 provided on the switch substrate 34 and consisting of light receiving and emitting elements, and a sub photointerrupter 51,
52. The photo interrupter 49, 5
0 and 51 are respectively connected to the receptacle 5c via the wiring pattern of the switch board 34 and the wiring 52. As shown in the A direction arrow view of FIG. 3 and FIG. 4,
Without stepping on the pedal body plate 37 of the pedal mechanism 30,
A main shielding plate 48 is located between the light emitting/receiving elements 49a and 49b, and the main photointerrupter 49 of the switch mechanism 35 is configured to shield light from the light emitting element 49b. In addition, when the pedal body plate 37 is depressed,
As shown in FIG. 3, the main shielding plate 48 moves and the light receiving element 49a of the main photointerrupter 49 receives light. That is, the main photointerrupter 49 is turned on/off in accordance with the back and forth movement of the main shielding plate 48.

Furthermore, as shown in FIG. 6, the sub-switch 18 and the sub-switch 19 each have a spring 52 and a sub-shielding plate 53, and a sub-photo interrupter 50.
, 51. And sub switch 1
8 and the sub-switch 19, as shown in FIG. 7, the sub-shielding plate 53 moves by pressing each sub-switch,
The light emitted from the light emitting elements of the photointerrupters 50 and 51 reaches the light receiving element. That is, the sub-switch 18 and the sub-switch 19 are turned off/on according to the vertical movement of the shielding plate 48. Therefore, as mentioned above, the photo interrupter 4 of the foot switch 5
9, 50, and 51 output on/off signals to the drive device 4 via the shielded cable 5a.

Since this foot switch 5 uses an optical photointerrupter as a switch, unlike a mechanical switch, it does not cause sparks and is explosion-proof. Therefore, even in an atmosphere of flammable gas, there is no danger of explosion and it is safe. In addition, the foot switch 5 is
As shown in FIG. 8, even if the foot switch 5 is accidentally turned upside down during operation, since the handle portion 21 protrudes above the height of the foot switch 5, the sub switch 18,
19 can be prevented from malfunctioning. Similarly, when the foot switch 5 is turned upside down, the pedal switch 1
7 does not protrude from the surface of the foot switch 5, and also functions as an upper limit stopper receiver 44 and an upper limit stopper 45, so that malfunction can be prevented.

With this configuration, when the therapist steps on the pedal switch 17 of the foot switch 5, the drive device 4 drives the ultrasonic transducer of the hand piece 3 via the shielded cable 7. At the same time, the drive device 4 drives the liquid feeding roller pump 12 and opens the suction pinch valve 13. Therefore, the ultrasonic transducer of the hand piece 3 vibrates and transmits the ultrasonic vibration to the treatment area via the probe 2, thereby emulsifying the treatment area. On the other hand, when the liquid feeding roller pump 12 is driven, the liquid feeding bottle 15
The liquid is sent to the treatment site from the liquid feeding port at the tip of the probe 2 via the second liquid feeding tube 10b, the first liquid feeding tube 10a, and the liquid feeding line of the handpiece. Furthermore, when the suction pinch valve 13 is opened, the suction port at the tip of the probe 2 becomes under negative pressure, and the emulsified unnecessary parts are transferred to the aspirate storage tank 16 via the first suction tube 11a. It is sucked and stored.

When the therapist releases the pedal switch 17 of the foot switch 5, the foot switch 5 is turned off, and the drive device 4 stops ultrasonic oscillation, liquid feeding, and suction. That is, while the ultrasonic vibrator of the hand piece 3 stops oscillating, the liquid feeding roller pump 12 is turned off, and the suction pinch valve 13 is cut off.

Next, when the therapist steps on the liquid feeding sub-switch 18 of the foot switch 5, the liquid feeding roller pump 1 is activated.
When the roller pump 12 for liquid feeding is driven, the liquid in the liquid feeding bottle 15 is transferred to the second liquid feeding tube 10b, the first liquid feeding tube 10a, and the liquid feeding tube of the hand piece. The liquid is sent to the treatment site from the liquid feeding port at the tip of the probe 2 via the channel. When the therapist releases the liquid feeding sub-switch 18 of the foot switch 5, the foot switch 5 is turned off, and the drive device 4 stops feeding the liquid.

Furthermore, when the therapist steps on the suction sub-switch 19 of the foot switch 5, the suction sub-switch 19 is turned on, and the drive device 4 is turned on.
Since the pinch valve 13 for suction is released, the suction port at the tip of the probe 2 is in a negative pressure state, and unnecessary parts, etc. are suctioned into the aspirate storage tank 16 via the first suction tube 11a. It will be stored. When the therapist releases the suction sub-switch 19 of the foot switch 5, the foot switch 5 is turned off, and the drive device 4 stops suction.

In this embodiment, while the ultrasonic oscillation, liquid feeding, and suction can be controlled by the pedal switch 17 of the foot switch 5, the liquid feeding sub-switch 18 or the suction sub-switch 19 can be used to control the ultrasonic oscillation, liquid feeding, and suction. Liquid or suction can be controlled independently. Main pedal switch 1
7 is located in a position that is easy for the therapist to step on, while
The sub-switches 18 and 19 are arranged further back than the pedal switch 17 for the therapist, and are spaced apart and smaller than the pedal switch 17. Therefore, the pedal switch 17 is easy to press and is suitable for controlling frequently used functions, while the sub-switches 18 and 19 are less likely to be pressed by mistake, increasing safety during treatment.

It goes without saying that the allocation of functions to each switch of the foot switch 5 is not limited to this embodiment, and can be allocated as necessary. Further, although the present invention has been described using an ultrasonic treatment device as an example, it goes without saying that it can be applied to other medical treatment devices.

[0029]

Effects of the Invention As described above, according to the foot switch of the medical treatment device of the present invention, each function or one or more of the plurality of functions of the medical treatment device can be performed independently. Even when the system is controlled in a controlled manner, it has the effect of increasing safety and operability.

[Brief explanation of drawings]

FIG. 1 is a schematic overall configuration diagram of an ultrasonic treatment device.

FIG. 2 is an external view of the foot switch.

FIG. 3 is an explanatory diagram showing a switch mechanism of a foot switch.

FIG. 4 is a sectional view of the foot switch.

FIG. 5 is a sectional view showing the operation of the main pedal switch of the foot switch.

FIG. 6 is a sectional view showing the mechanism of a sub-switch of the foot switch.

FIG. 7 is a cross-sectional view showing the operation of the sub-switch of the foot switch.

FIG. 8 is an explanatory diagram when the foot switch is inverted.

[Explanation of symbols]

1...Ultrasonic treatment device 2...Probe 3...Handpiece 4...Drive device 5...Foot switch 17...Pedal switch 18...Sub switch 19...Sub switch 20...Switch body 21...Handle part

Claims (1)

[Claims] Claims: 1. A foot switch for a medical treatment device for controlling a medical treatment device having multiple functions, wherein a plurality of operation switches are provided, and at least one of the plurality of operation switches comprises: A foot switch for a medical treatment device, characterized in that the foot switch corresponds to a plurality of functions of the medical treatment device by being differentiated from other operation switches.