JP2618110B2 - Surgical treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surgical treatment apparatus having a hand switch and having an active wire connected to a treatment tool for performing a surgical treatment.

[0002]

2. Description of the Related Art There is known an ultrasonic scalpel which concentrates ultrasonic energy on an unnecessary diseased tissue site and subdivides the tissue. On the other hand, an electric scalpel used for treatment purposes such as tissue incision and hemostatic coagulation is known. Scalpels are also known.

In recent years, multifunctional scalpels have been proposed which combine the use of such ultrasonic scalpels and electric scalpels to take advantage of their respective advantages (USP Nos. 4,2,2).
49,901 or USP 4,931,04
No. 7).

[0004] In particular, USP 4,931,04
No. 7, the switch is provided on the handpiece for turning on / off the supply of high frequency. In addition, what provided the switch on the body of the electrocautery instrument
No. 4,552,143.

[0005] Further, in USP 4,931,047 and USP 4,552,143, an energizing means for supplying a high-frequency current to the handpiece and the main body of the electrocautery instrument itself. And,
The switch has a portion that is in electrical communication with the handpiece or electrocautery instrument body.

[0006]

All of the above-mentioned conventional switches have been provided with an energizing means for supplying a high-frequency current. If such a switch is provided with an energizing means for supplying a high-frequency current, the other side on which the switch is to be installed must be formed of at least a conductive member made of metal or the like, while the portion to be gripped is protected from burns and the like. Therefore, an insulation treatment must be taken to prevent the power supply to the human body.

[0007] However, such a structure not only complicates the structure of the electrically conductive portion but also increases the cost because the material to be used is specified, especially when a metal member is used. Above all, the use of a metal material makes the handpiece portion heavier. In this type of surgical instrument, since a long operation is expected, a heavy handpiece is a serious disadvantage.

In addition, since the switch must be installed on a conductive part such as a metal that is partially exposed in the handpiece, the installation position of the switch is specified. However, in this type of surgical treatment tool, it is important to pursue ease of use by the surgeon, and if the position of the switch that performs sensitive finger movement is fixed, the operability will be remarkable. The drop is obvious.

In addition, a high-frequency on / off signal line and a high-frequency active line are collectively arranged on a power supply cord for ultrasonic driving extending from the handpiece as described above.
Therefore, the noise generated from the high-frequency active wire
There is also a possibility of getting on the high-frequency on / off signal line, which is a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and aims to reduce the weight of the treatment tool and simplify the structure, and to reduce noise generated from the active line to the switch signal line. An object of the present invention is to provide a surgical treatment apparatus that can be mounted without riding and that can make the handpiece portion of the treatment instrument as safe as possible.

[0011]

According to the present invention, a high-frequency current is generated.
Handpiece for performing a surgical treatment is applied, high frequency
High-frequency current generating means for generating a wave current;
Source and the high-frequency current generating means to connect the high-frequency current
And an active wire for supplying the handpiece
The switch, the switch and the high-frequency power supply.
Control the high-frequency current generating means by connecting the
And the active line
The path of the high-frequency current supplied via the
A surgical treatment apparatus comprising an independent signal line .

[0012]

1 to 3 show a surgical treatment tool according to a first embodiment of the present invention. As shown in FIG. 1, a handpiece 1 has a Langevin type ultrasonic vibrator 3 as an ultrasonic generator unit installed inside a cylindrical cover 2 thereof. The ultrasonic vibrator 3 is formed by sandwiching the electrode plate 4 and the vibrating element 5 on a vibration amplification horn 6 on the front end side and a backing plate 7 on the rear end side, and further tightening them with bolts 8. It is made by immobilization. A conductive hollow transmission treatment member 9 is connected to the tip of the horn 6, and the treatment member 9 protrudes from the tip of the cover 2.

In addition, a base 11 which penetrates through a hollow hole (not shown) formed in the bolt 8 and communicates with the hollow hole of the treatment member 9 is provided in a rear end wall of the cover 2. A suction tube leading to a suction pump (not shown) is connected to the base 11.

A power cord 13 extends from the rear end wall of the cover 2 and extends therethrough. This power cord 1
3, a lead wire 14 for transmitting an ultrasonic drive signal and a high-frequency active wire 15 for supplying a high-frequency current are collectively inserted. The lead wire 14 and the active wire 15 are branched inside the cover 2, and the lead wire 14 is connected to the electrode plate 4 of the ultrasonic vibrator 3 by means such as soldering.

The active wire 15 is electrically connected to the backing plate 7 which is electrically connected to the conductive vibration transmitting treatment member 9. Therefore, a high-frequency current can be supplied from the active wire 15 to the distal end of the treatment member 9.

On the outer periphery of the cover 2 of the handpiece 1, a hand switch 17 for selecting an operation or a type of a high-frequency treatment as described later is detachably mounted. As shown in FIG. 3 (a), the hand switch 17 is provided with a switch button 21 for high-frequency incision and a switch button 22 for high-frequency coagulation on a switch stand 23. A pair of clip portions 24, 24 that are elastically fitted and sandwiched on the outer periphery of the horn are formed. That is, the hand switch 17 is detachable from the cylindrical cover 2 of the handpiece 1, and the position to be fixed to the cover 2 can be arbitrarily selected in the axial direction. Also, this hand switch 17
From there, a switch signal line (code) 25 extending separately from the power supply cord 13 extends.

FIG. 2 shows electric wiring for the surgical treatment tool.
Indicated by A power cord 13 in which a lead wire 14 for transmitting an ultrasonic drive signal and an active wire 15 for supplying a high-frequency current are collectively inserted is connected to an apparatus main body 31. A control circuit is provided in the apparatus main body 31. The switch signal line 25 from the hand switch 17 is also connected to the apparatus main body 31. Power cord 13 and switch signal line 25
Are separately connected to the apparatus main body 31.
The apparatus main body 31 is provided with a high-frequency power supply 26, and further connected to a foot switch 27 used for performing ultrasonic treatment. Note that an operation switch other than the foot switch 27 or an alternative may be provided on the cover 2 of the handpiece 1, for example.

Next, the operation of the surgical instrument will be described. First, when the treatment is performed at a high frequency, the switch base 23 of the hand switch 17 is fitted into an arbitrary position on the outer periphery of the cover 2 and the hand switch 17 is attached to the handpiece 1 as shown in FIG. I do. When the tip of the vibration transmitting treatment member 9 is applied to the living body treatment site and one of the high frequency incision switch button 21 and the high frequency coagulation switch button 22 is turned on in accordance with the purpose of the treatment, the signal is transmitted to the switch signal line 25 Is sent to the control unit of the apparatus main body 31.

As a result, a high-frequency current generated by the high-frequency power supply 26 according to the selected type is electrically connected to the backing plate 7 of the ultrasonic transducer 3 through the active wire 15 of the power cord 13. It is supplied to the treatment member 9. Thus, the tissue site to which the distal end of the treatment member 9 has been applied can be incised or coagulated with high frequency.

When performing an ultrasonic treatment using the handpiece 1, when the foot switch 27 is operated, an ultrasonic drive signal generated by this operation is transmitted to the lead wire 14.
To the ultrasonic vibrator 3 to generate ultrasonic vibration. The generated ultrasonic vibration is transmitted through the treatment member 9 and concentrates ultrasonic energy on the affected tissue site to subdivide the tissue.

According to this configuration, the switch base 23 of the hand switch 17 can be fitted and mounted at an arbitrary position on the outer periphery of the cover 2, so that the surgeon can select the mounting position according to his / her preference and operate. The performance is improved. Further, a high-frequency active line 15 for supplying a high-frequency current to the power cord 13 separate from the switch signal line 25 derived from the hand switch 17 is provided. That is, since the switch signal line 25 derived from the hand switch 17 and the high-frequency active line 15 are separate bodies, the cover 2 of the hand switch 17 and the handpiece 1 to which the hand switch 17 is attached is made of a conductor such as metal. There is no need to make it.
Therefore, if the material can be freely selected and made of, for example, synthetic resin, a lightweight and inexpensive handpiece 1 can be provided. In addition, since a conductive portion such as a metal can be eliminated, there is no fear of electric shock or burn, and the device is safe.

In addition to the case where the treatment is performed at a high frequency, if the hand switch 17 is detached from the cover 2 of the handpiece 1, the hand switch 17 does not become a hindrance, so that the gripping performance and the visual field condition are improved and the operation performance is improved.

At the time of sterilization, especially when the hand switch 17 is not resistant to the autoclave, the hand switch 17 can be removed from the handpiece 1 and sterilized.

If the hand switch 17 is made of an inexpensive material such as resin, it can be made into a disposable device.
An inexpensive switch used for this purpose is, for example, a membrane switch.

A magnetostrictive vibrator may be used instead of the Langevin type ultrasonic vibrator 3 as the ultrasonic generator.

FIG. 4 shows a hand switch which is not an embodiment of the present invention .
It illustrates an example of a pitch. As shown in FIG. 4A, the hand switch 40 in this case is configured as a single switch separated from the handpiece 1.

In the hand switch 40, a grip portion 42 is formed on a case body 41, and a high-frequency incision switch button 43 and a high-frequency coagulation switch button 44 are provided on one end wall surface of the case body 41. . From the hand switch 40, a switch signal line 45 that extends separately from the power cord 13 extends.

When using the hand switch 40, the operator holds the hand switch 40 with one hand as shown in FIG. 4 (b), and as shown in FIG. 4 (c). With the other hand holding the handpiece 1, the same operation as described above is performed. In addition, another person is the person operating the hand piece 1 can also be operated with the hand switch 40, Ru can reduce the fatigue of the operator to operate with a hand switch 40 is in this case .

FIGS. 5 and 6 show a second embodiment of the present invention. This embodiment is a modification of the surgical treatment tool according to the first embodiment described above, and differs in the following points. That is, the handpiece 1 has a water supply base 51 and a suction base 52. A water supply path 53 and a suction path 54 which are fitted and connected to the water supply base 51 and the suction base 52, respectively.
Is provided. A switch signal line 25 derived from the same hand switch 17 as described above extends along the water supply / suction tube 55, and a portion along the switch signal line 25 is integrated with the water supply / suction tube 55 by, for example, integral molding, adhesion, welding, or the like. It is attached to.

Further, the power cord 13 derived from the handpiece 1 is separated from the switch signal line 25 and the water supply / suction tube 55, and is provided with a plurality of cord stoppers provided along the water supply / suction tube 55 and at appropriate intervals. 56.

When this is used, the water supply path 53 and the suction path 54 of the water supply / suction tube 55 are connected to the water supply base 51 and the suction base 52 of the handpiece 1, respectively. 17 is attached.
In addition, the power cord 13 derived from the handpiece 1 is stopped along the water supply / suction tube 55 by a plurality of cord stoppers 56, and these are integrated.

Thus, the tube cords of the power supply cord 13, the switch signal line 25, and the water supply / suction tube 55 (water supply tube and suction tube) can be integrated into one. Therefore, the tubes and cords do not become entangled with each other during the operation, and the operability is improved. In particular, since the switch signal line 25 and the water supply / suction tube 55 are integrally formed, the switch signal line 25 and the water supply / suction tube 55 are not attached one by one at the time of surgery, and the time for setup is reduced.

FIG. 7 shows a modification of the second embodiment.
The water supply tube 61, the suction tube 62, and the switch signal line 25, which have been separate, are integrated by welding or welding. The water supply tube 61 is connected to the water supply base 51 of the handpiece 1 as in the above embodiment, and the suction tube 62 is connected to the suction base 52.

That is, according to this configuration, conventionally used tubes can be integrally used by bonding or welding. Therefore, they can be provided simply and inexpensively.

FIGS. 8 and 9 show a third embodiment of the present invention. In this embodiment, a suction tube 66 is inserted and disposed inside a water supply tube 65, and the water supply tube 65 and the suction tube 66 are integrated. Then, a water supply path 67 is formed between the water supply tube 65 and the suction tube 66, and a suction path 68 is formed inside the suction tube 66. A switch signal line 25 along the longitudinal direction is welded or bonded to the outer periphery of the water supply tube 65.

The base 69 on the handpiece 1 side connecting the water supply path 67 of the water supply tube 65 and the suction path 68 of the suction tube 66 is configured as shown in FIG. That is, the base 69 includes a suction base 73 and a water supply base 74 formed so as to surround the suction base 73, and the suction base 73 is formed on the center axis of the handpiece 1 in the inner cover 71 of the handpiece 1. At the same time, the suction object is sucked through the suction path 72 that communicates with the hollow hole of the treatment member 9 described above.

Further, the water supply mouthpiece 74 communicates between the inner cover 71 and the outer cover 75. The water sent from the water supply mouthpiece 74 is sent forward between the inner cover 71 and the outer cover 75.

However, according to this configuration, the tube assembly of the water supply tube 65 and the suction tube 66 to be integrated is circular, so that it is compact and
The bending direction of the tube assembly bends freely in any direction, increasing the degree of freedom. Therefore, the operability is improved. In addition, there is no work such as welding or bonding, the two tubes can be inserted and assembled easily, and it can be manufactured at low cost.

In each of the above embodiments, the hand switch is for high-frequency treatment, but similarly, a hand switch for ultrasonic treatment having an on / off signal line for ultrasonic treatment can be considered. .

[0040]

As described above, according to the present invention, the handpiece of the treatment instrument can be constituted electrically independent of the hand switch, so that the handpiece is simplified and its operability is improved. As a result, it is possible to eliminate electric conductors such as metals and the like, so that there is no fear of electric shock or burns, and safety is achieved.

Further, since the switch signal line derived from the hand switch is provided separately from the active line,
Noise from the active line hardly gets on the switch signal line, preventing malfunction and improving safety.
In addition, the operation switch is configured separately from the handpiece
The handpiece itself is autoclaved.
Easily configured to be able to cope with the sterilization process
Yes, and only the switches are
Sterilization can be selected, or a handpiece or
Simplified switch configuration and disposable switch only
It is also possible.

[Brief description of the drawings]

FIG. 1 is a sectional view of a handpiece of a surgical treatment apparatus according to a first embodiment of the present invention.

FIG. 2 is a diagram showing electrical wiring of the surgical treatment apparatus according to the first embodiment of the present invention.

3A and 3B show a surgical treatment apparatus according to the first embodiment of the present invention, wherein FIG. 3A is a perspective view of the hand switch, and FIG. 3B is a perspective view of the hand piece and the hand switch.

4A and 4B show a surgical treatment apparatus according to a second embodiment of the present invention, wherein FIG. 4A is a perspective view of the hand switch, FIG. 4B is a perspective view of the hand switch in a gripped state, and FIG. Is a perspective view of a state where the handpiece is gripped.

FIG. 5 is a perspective view of a hand switch and a tube in a surgical treatment apparatus according to a third embodiment of the present invention.

FIG. 6 is a side view showing a partially sectioned assembled state of the surgical treatment apparatus according to the third embodiment of the present invention.

FIG. 7 is a sectional view of a tube portion showing a modification of the third embodiment of the present invention.

FIG. 8 is a sectional view of a water supply / suction tube in a surgical treatment apparatus according to a fourth embodiment of the present invention.

FIG. 9 is a sectional view of a part of a base for connecting a water supply suction tube in the surgical treatment apparatus according to the fourth embodiment of the present invention.

[Description of Signs] 1 ... Handpiece, 13 ... Power Cord, 14 ... Lead Wire, 15 ... High Frequency Active Wire, 17 ... Hand Switch, 25 ... Switch Signal Wire, 40 ... Hand Switch,
45 ... Switch signal line.

Claims (1)

(57) [Claims] A handpiece for applying a high-frequency current to perform a surgical procedure; a high-frequency current generating means for generating a high-frequency current; and connecting the handpiece and the high-frequency current generating means to generate a high-frequency current. An active wire to be supplied; and the handpiece, which is configured separately from the handpiece.
A hand switch detachably attached to the hand switch, and a signal for controlling the high-frequency current generating means by connecting the hand switch and the high-frequency current generating means and transmitting a high-frequency current supplied through the active line. A surgical treatment apparatus comprising: a signal line that is electrically independent from a path;