JPH0333013B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a radiofrequency ablation device, and particularly to a radiofrequency ablation device used for surgical treatment.

[Prior Art] A high-frequency ablation device conventionally used in an endoscope apparatus is provided with a plurality of output connectors for connecting treatment tools such as a scalpel holder, a scalpel holder with a hand switch, and bipolar forceps. A predetermined high frequency output is guided to these treatment tools by operating a foot switch or a hand switch provided on a scalpel holder with a hand switch. In this case, the operator operates a selection switch or the like to select an output in order to guide a predetermined high-frequency output to a desired treatment instrument.

[Problems to be Solved by the Invention] In the conventional high-frequency ablation device as described above, when a foot switch or hand switch is operated, high-frequency outputs corresponding to various surgical treatments are simultaneously generated. For this reason, if a treatment instrument is connected to all output connectors of the high-frequency ablation device, there is a possibility that an unintended output will be output from the treatment instrument, which may pose a danger in treatment. Further, if a switch for selecting the type of output is provided, the operation for selecting the output is troublesome, and there is a risk of erroneous operation.

An object of the present invention is to provide a high-frequency ablation device that can safely and easily select high-frequency output.

[Means for Solving the Problems] According to the present invention, at least one of the plurality of output connectors includes a treatment implement connection detection member for detecting connection of a treatment implement, and this detection member connects the treatment implement to the output connector. A member is provided that cuts off the supply of high frequency output to other output connectors upon connection detection.

[Function] According to the high-frequency ablation device of the present invention, when a plurality of treatment tools are connected to the output connector, only the high-frequency output system for one treatment tool is automatically selected, and only one type of output is guided to the treatment tool. It will be destroyed. This allows safe treatment without producing unintended output.

[Example] According to FIG. 1, the high-frequency ablation device 11 includes an output section 12 that outputs a high-frequency current and this output section 1.
An output switching section 13 connected to the second output terminal is provided. The output terminal section of the output switching section 13 is connected to the output connector section 14 . The output connector section 14 includes a plurality of connectors, as shown in FIG.
Output check connector 15, bipolar connector 16, hand switch connector 17, active connector 18 and P (patient) plate connector 1
9 is provided. These connectors 15 to 1
9 includes various treatment tools as shown in FIG.
Output check lead 20, bipolar forceps 21, scalpel holder with hand switch 22, active scalpel holder 23, and P (patient) plate 24
are connected respectively. The output check lead 20 is used to check the output of the radiofrequency ablation device, and the bipolar forceps 21 are used for coagulation and the like. The female holder 22 with a hand switch is used to turn on and off the high frequency output using a switch at hand.

The foot switch 25 is connected to the high frequency ablation device 11.
It is connected to the output section 12 of. Further, the output connector section 14 is provided with a detection section 26 that detects insertion of a treatment tool into the connector section. This detection section 26 has a switch structure 3 as shown in FIG.
1. That is, the movable switch electrode 3 is connected to the active electrode 32 of the active connector 18.
3 is attached by an insulating member 34. The movable switch electrode 33 is brought into contact with or separated from the active electrode 32 by an insulating actuating member 35 provided on the active electrode 32 so as to be movable up and down, and a switch operation is performed. That is, when the female holder 23 is inserted into the active connector 18, the female holder 23 pushes the actuating member 35 upward as shown in FIG. Accordingly, the actuating member 35 separates the movable switch electrode 33 from the active electrode, turning off the switch. FIG. 6 shows the switch structure 31 in the on state, whereas FIG. 7 shows the switch in the off state. In the switch-on state of FIG. 6, that is, the state in which the female holder 23 is not inserted into the active connector 18, if the female holder 22 with a hand switch is connected to the hand switch connector 17 at this time, the female holder 22 with a hand switch is turned off. 22a or 2
A high frequency output is guided to the output terminal 22b according to the opening/closing of the terminal 2c.

When the female holder 23 is inserted into the active connector 18 and the switch structure 31 is in the OFF state, the female holder 22 with a hand switch
is electrically separated from the output section 12, and the output section 12
The high frequency output is obtained only from the female holder 23. That is, when both the female holder 23 and the female holder 22 with a hand switch are inserted into the connector portion 14, the output is preferentially guided to the female holder 23. Therefore, even if a plurality of treatment instruments are connected to the connector portion 14, high-frequency output is supplied to only one treatment instrument, so there is no possibility of unintended output being produced, and treatment can be performed safely.

In the embodiment shown in FIG. 8, a photoelectric sensor (photo interrupter) 41 is used as the detection unit 26, for example.
It is provided at the entrance of the active connector 18.
The photo interrupter 41 includes a light emitting element 41a and a light receiving element 41b, and detects the connection of the treatment tool depending on whether the light from the light emitting element 41a is interrupted. That is, when the female holder 23 is inserted into the active connector 18 as shown in FIG. 9, the light from the light emitting element 41a is blocked by the female holder 23.
The light receiving element 41b is turned off. In response to the off signal from the light receiving element 41b, the output switching section 13 operates to guide the high frequency output to the active connector 18. At this time, the output system to other connectors is automatically cut off.

According to FIG. 10, a mechanical switch (micro switch) 42 is provided as the detection section 26, for example, at the entrance of the active connector 18. This mask switch 42 is opened and closed by inserting and removing the scalpel holder 23, and insertion of the treatment instrument is detected by opening or closing the switch. In response to the opening and closing of the switch 42, the output switching section 13 switches the high frequency output.

In the above description, the connector detector is provided on the active connector, but this detector may be provided on other connectors. Alternatively, the connector connection detection section may output signals according to the type of treatment instrument connected to the connector, and the high frequency output may be selected based on these outputs.

[Effects of the Invention] As explained above, since the detection unit 26 is configured to cut off the supply of high frequency output to other treatment instruments by detecting the insertion of a treatment instrument, multiple treatment instruments Even if the device is attached to the connector section, various high-frequency outputs will not be simultaneously delivered to a plurality of treatment tools, allowing safe treatment at all times.

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of a high-frequency ablation device according to an embodiment of the present invention, FIG. 2 is a plan view of a connector section of the high-frequency ablation device of FIG. 1, and FIG.
4 and 5 are side views showing the structure of the detection section provided in the high-frequency ablation device of FIG. 1, and FIGS. 6 and 7 is a circuit diagram of the detection section shown corresponding to FIGS. 4 and 5, FIGS. 8 and 9 are side views of the detection section using a photoelectric sensor, and FIG. It is a side view of a detection part. 11... High frequency cautery device, 12... Output section, 1
3... Output switching section, 14... Output connector section, 1
5-19... Connector, 20-24... Treatment instrument,
31... Switch structure, 41... Photoelectric sensor,
42...Micro switch.

Claims (1)

[Scope of Claims] 1. Two active output connectors for connecting a treatment instrument, a high frequency output supply means for supplying high frequency output to the active output connector, and provided in any one of the two active output connectors, A treatment instrument connection detection means for detecting connection of a treatment instrument to the active output, a detection signal outputted by detecting connection of the treatment instrument, and one of the two active outputs is selected based on the detection signal. , an output switching means for outputting a high frequency output to the selected one active output. 2. The high-frequency ablation device according to claim 1, wherein the treatment instrument connection detection means is constituted by a switch means that is mechanically activated by insertion of the treatment instrument into the output connector. 3. The high-frequency ablation device according to claim 1, wherein the treatment instrument connection detection means comprises means for optically detecting insertion of the treatment instrument into the output connector.