DE102016107611B4 - Electrode connector and method for connecting an electrode to a connector of a high-frequency cable - Google Patents

Abstract

Electrode connector for connecting an electrode (17) designed to be exposed to high frequencies at its proximal end (18) to a plug (22, 22 ', 22 ") of a high-frequency cable (23) via a sliding body (12, 12', 12") of a electrode transporter (2) provided for use in a resectoscope (1), the sliding body (12, 12 ', 12 ") being displaceable in the direction of a longitudinal sliding axis (15, 15', 15") and parallel to the longitudinal sliding axis (15, 15 ') , 15 ") has an electrode channel (16) into which a proximal end (18) of the electrode (17) can be inserted, the sliding body (12, 12 ', 12") being transverse to the sliding longitudinal axis (15, 15', 15 " ) has a plug receptacle (20, 20 ', 20 ") for receiving a plug attachment (21, 21', 21") of the plug, the plug attachment (21, 21 ', 21 ") having a contact receptacle (24) with a receiving channel ( 25) for receiving the proximal end (18) of the electrode (17), and wherein the receiving channel (25) in the sliding body (12, 12 ', 12 ") inserted plug (22, 22', 22") is aligned with the electrode channel (16) of the sliding body (12, 12 ', 12 "), characterized in that in the plug attachment (21, 21', 21" ) a latch (26) is arranged so that when the electrode (17) is inserted in the plug attachment (21, 21 ', 21 "), the proximal end (18) of the electrode (17) cannot be disengaged from the plug attachment due to the latch (26) (21, 21 ', 21 "), that the electrode connection further has means (43, 43', 43") for separating the latched proximal end (18) of the electrode (17), and that the means for separating (43, 43 ') are designed as a separating device (31, 31', 31 ") which has a knife edge (32, 32 ', 32") that can be pivoted transversely to the proximal end (18) of the electrode (17)

Description

Field of invention

The invention relates to an electrode connector for connecting an electrode designed to be exposed to high frequency at its proximal end to a plug of a high frequency cable via a sliding body of an electrode conveyor intended for use in a resectoscope, the sliding body being displaceable in the direction of a longitudinal sliding axis and an electrode channel parallel to the longitudinal sliding axis has, into which a proximal end of the electrode can be inserted, the sliding body having a plug receptacle for receiving a plug attachment of the plug transversely to the sliding longitudinal axis, the plug attachment having a contact receptacle with a receiving channel for receiving the proximal end of the electrode, and the receiving channel at plug inserted in the sliding body is aligned with the electrode channel of the sliding body.

The invention also relates to a method for connecting an electrode to a plug of a high-frequency cable by means of an electrode connection according to one of Claims 1 to 8.

State of the art

For electrosurgical electrodes, such as those used for resectoscopes for resecting prostate tissue in connection with electrode transporters, there is a need, for safety reasons, to have the electrodes designed to be exposed to high frequencies and the high-frequency cables to be connected to them via plug-in connections, which establish the connection to a high-frequency generator to be used only once - as a single-use product.

From the DE 10 2012 009 058 A1 an electrode connector for connecting an electrode designed to be exposed to high frequency at its proximal end to a plug of a high frequency cable via a sliding body of an electrode conveyor which is intended for use in a resectoscope is known. The sliding body is displaceable in the direction of a sliding longitudinal axis along a guide tube and has an electrode channel parallel to the sliding longitudinal axis into which the proximal end of the electrode can be inserted. At right angles to the longitudinal axis of the slide and thus also transversely to the electrode channel, the slide body has a connector receptacle for receiving a connector extension of the connector of the high-frequency cable, the connector extension having a contact with a receiving channel for receiving the proximal end of the electrode, and the receiving channel in the sliding body inserted plug is aligned with the electrode channel of the slide body.

This electrode connection, which has proven itself in principle, is suitable both for single use of the electrode and for single use of the high-frequency cable.

The disadvantage of the known electrode connection, however, is that it cannot be ensured that both the electrode and the high-frequency cable are not reused.

Furthermore, from the DE 38 34 230 C2 a resectoscope is known with an electrode connection, the electrode of which merges at its proximal end within a connector into the high-frequency cable and thus forms an inseparable electrode connection.

Here, too, it is disadvantageous that it cannot be ensured that the known electrode connection, namely the electrode and high-frequency cable, will not be reused.

Another disadvantage here is that the electrode cannot be inserted into an electrode guide tube from the distal end because of its non-detachable connection to the high-frequency cable. Rather, both the electrode and the connector must be fixed in the electrode conveyor by inserting them from the side. This creates sealing problems that have to be solved relatively cost-effectively using an additional sealing part.

From the US 2006/0025814 A1 A medical device is known which has means which undergo irreversible changes when subjected to a negative pressure during a sterilization process, so that the device cannot be reused.

The disadvantage here is that the device only undergoes the intended irreversible changes when a new sterilization process is carried out. It is also disadvantageous that the entire device is not intended for reuse.

Task

It is the object of the present invention to improve the known electrode connections in such a way that it can be ensured that both the electrode and the high-frequency cable with the plug cannot be used again. At the same time, a relatively complicated lateral joint insertion of the electrode and high-frequency cable should be avoided.

Another object of the invention is to provide a method for connecting an electrode to a plug of a high-frequency cable which ensures that both the electrode and the high-frequency cable with the plug cannot be used again.

Statement of the invention

This object is achieved with regard to the electrode connection in connection with the features of the preamble of claim 1 in that a latch is arranged in the plug attachment so that when the electrode is inserted in the plug attachment, the proximal end of the electrode is not unlatched connected to the plug attachment by the latching that the electrode connection further has means for separating the latched proximal end of the electrode, and that the means for separating are designed as a separating device which has a knife edge that can be pivoted transversely to the proximal end of the electrode.

The fact that a latch is arranged in the plug attachment and the proximal end of the electrode does not latch in the plug attachment so that it cannot be unlocked ensures that the electrode and the plug attachment can only be separated from each other after the latched proximal end has been separated. The severing of the proximal end is made possible by the severing means. Cutting off the proximal end of the electrode makes it unusable and prevents it from being used again. At the same time, the detached proximal end of the electrode remaining in the connector extension prevents the connector extension and thus the high-frequency cable from being connected to a new electrode.

The means for separating are designed as a separating device which has a knife edge that can be pivoted about a knife edge that can be pivoted transversely to the proximal end of the electrode. For example, the knife edge can ring around the proximal end of the electrode. As a result, the proximal end of the electrode can be separated mechanically in a relatively simple and inexpensive manner.

The means for separating can be produced easily and inexpensively.

Preferred embodiments are the subject of the dependent claims.

According to a preferred embodiment of the invention, the knife edge is arranged on a plate-shaped pivoting part, the pivoting part being pivotable at a predetermined pivoting angle about a pivoting axis arranged parallel to the sliding longitudinal axis on the sliding part via an operating part protruding laterally from the sliding body. In this embodiment, the force arm between the pivot axis and the operating part can be made longer than the effective force arm between the pivot axis and the effective knife edge. This applies in particular when the sliding part which is displaceable along a guide tube, the longitudinal axis of which forms the longitudinal sliding axis, the pivoting part has a recess around the cross section of the guide tube in the area of the pivoting angle.

According to a further preferred embodiment of the invention, the knife edge is arranged on a cylindrical pivoting part, the pivoting part being pivotable at a predetermined pivoting angle about a pivoting axis arranged transversely to the sliding longitudinal axis on the connector attachment via an operating part protruding laterally from a recess in the slider body.

According to a further preferred embodiment of the invention, it is particularly advantageous to design the swivel part and the swivel axis so that they can swivel at the specified swivel angle over two mutually opposite sides of the operating parts protruding laterally from a recess groove in the slide body. As a result, the force necessary for cutting can be exerted on the knife edge on two opposite sides of the pivoting part via the operating parts.

According to a further preferred embodiment of the invention, the cylindrical pivoting part is pivotably attached to the plug.

According to a further preferred embodiment of the invention, the latching has a latching part which can be pressed into a latching groove in the proximal end of the electrode by a spring transversely to the longitudinal axis of the proximal end of the electrode. Due to the continuous spring action, the locking part remains permanently locked in the proximal end of the electrode.

1. a) Anstecken des Steckers mit seinem Steckeransatz in die Steckeraufnahme des Schiebekörpers des Elektrodentransporteurs,
2. b) Einschieben der Elektrode mit ihrem proximalen Ende von distal über ein Elektrodenführungsrohr des Elektrodentransporteurs und weiter über den Elektrodenkanal im Schiebekörper, den Aufnahmekanal des Steckeransatzes, bis das proximale Ende der Elektrode in der Verrastung dauerhaft verrastet,
3. c) zum Trennen der Verbindung erfolgt ein Abtrennen des verrasteten proximalen Endes der Elektrode mittels der Mittel zum Abtrennen dadurch, dass das proximale Ende der Elektrode durch Verschwenken der Messerschneide der Trennvorrichtung abgetrennt wird,
4. d) Herausziehen der Elektrode ohne ihr abgetrenntes proximales Ende nach distal aus dem Elektrodenführungsrohr, und
5. e) Herausziehen des Steckeransatzes mit abgetrenntem proximalem Ende der Elektrode aus der Steckeraufnahme des Schiebekörpers.

The object with regard to the method is achieved in connection with the features of the preamble of claim 9 in that the following steps are carried out:

1. a) Plugging the connector with its connector into the connector receptacle of the slide body of the electrode conveyor,
2. b) Pushing in the electrode with its proximal end from distal over an electrode guide tube of the electrode transporter and further over the electrode channel in the sliding body, the receiving channel of the plug attachment until the proximal end of the electrode is permanently locked in the latch,
3. c) to disconnect the connection, the latched proximal end of the electrode is disconnected by means of the disconnection means in that the proximal end of the electrode is disconnected by pivoting the knife edge of the disconnection device,
4. d) pulling the electrode without its severed proximal end distally out of the electrode guide tube, and
5. e) Pulling out the plug attachment with the detached proximal end of the electrode from the plug receptacle of the slide body.

The fact that the proximal end of the electrode is inserted into the receiving channel of the connector attachment to connect the electrode to the connector of the high-frequency cable until the proximal end of the electrode is permanently locked in the locking means that the connection can only be disconnected by disconnecting the locked can be done proximal end of the electrode by means of the means for severing. This also ensures at the same time that the electrode and the high-frequency cable can no longer be used again.

In step c) the proximal end of the electrode is cut off by pivoting the knife edge of the cutting device.

Further features and advantages of the invention emerge from the following specific description and the drawings.

Figure list

• 1: eine Seitenansicht im Ausriss eines Elektrodentransporteurs mit einem Elektrodenanschluss, einem gestrichelt angedeutetem Endoskopschaft und einer gestrichelt angedeuteten Optik;
• 2: eine vergrößerte Seitenansicht im Ausriss und teilweise im Schnitt des Elektrodentransporteurs von 1;
• 3: eine vergrößerte Seitenansicht teilweise im Schnitt des Steckers von 2;
• 4: eine Vorderansicht des Elektrodentransporteurs von 2 entlang der Linie IV - IV geschnitten;
• 5: eine Vorderansicht der als plattenförmiges Schwenkteil ausgebildeten Trennvorrichtung von 4;
• 6: eine vergrößerte Seitenansicht im Ausriss und teilweise im Schnitt eines weiteren Elektrodentransporteurs mit einer am Schiebeteil als zylinderförmiges Schwenkteil angeordneten Trennvorrichtung;
• 7: eine vergrößerte Seitenansicht im Ausriss und teilweise im Schnitt eines weiteren Elektrodentransporteurs mit einer am Steckeransatz als zylinderförmiges Schwenkteil angeordneten Trennvorrichtung;
• 8: eine vergrößerte Seitenansicht teilweise im Schnitt des Steckers von 7 und
• 9: eine Draufsicht auf den Stecker von 8 aus Richtung IX;

Show it:

• 1 : a side view in the cutout of an electrode conveyor with an electrode connection, an endoscope shaft indicated by dashed lines and optics indicated by dashed lines;
• 2 FIG. 8 is an enlarged side view, in torn and partly in section, of the electrode conveyor from FIG 1 ;
• 3 FIG. 8 is an enlarged side view partially in section of the connector of FIG 2 ;
• 4th : A front view of the electrode feeder of FIG 2 cut along the line IV - IV;
• 5 : a front view of the separating device embodied as a plate-shaped pivoting part from FIG 4th ;
• 6 : an enlarged side view in a cutaway and partially in section of a further electrode conveyor with a separating device arranged on the sliding part as a cylindrical pivoting part;
• 7th : an enlarged side view in a cutaway and partially in section of a further electrode conveyor with a separating device arranged on the connector attachment as a cylindrical pivoting part;
• 8th FIG. 8 is an enlarged side view partially in section of the connector of FIG 7th and
• 9 : a top view of the connector of 8th from direction IX;

Description of preferred embodiments

A resectoscope 1 consists essentially of an electrode conveyor 2 , an optic 3 and a resectoscope shaft 4th .

The electrode transporter 2 (also known to a person skilled in the art as a work element or work insert) has a guide tube 5 at its proximal end facing the surgeon 6 a connector 7th for connecting the optics 3 that are in the guide tube 5 is performed, is arranged. The electrode transporter 2 has a finger grip 8th and a connecting cone positioned in front in the distal direction 9 over which the electrode conveyor 2 via a closure 10 with a main body forming the proximal end of the resectoscope shaft 11 is lockable.

On the guide tube 5 is a longitudinally movable sliding body 12 (also known as a slide to the skilled person). Via a resilient joint 13 is the sliding body 12 with the connector 7th connected and can be via a thumb ring 14th against the spring force of a spring, not shown, of the joint 13 towards the finger grip 8th be pressed.

The sliding body 12 in the direction of a sliding longitudinal axis 15th that coincides with the longitudinal axis of the guide tube 5 coincides, is displaceable, points parallel to the longitudinal axis of the slide 15th an electrode channel 16 on one electrode 17th with their proximal end 18th , for example via an electrode guide tube 19th of the electrode conveyor 2 , can be inserted from the distal side. The proximal end 18th a longitudinal axis 41 on.

The sliding body 12 points transversely to the sliding longitudinal axis 15th a plug receptacle 20th to accommodate a connector attachment 21st of a plug 22nd on. The plug 22nd is at the instrument end of a high frequency cable 23 arranged. The high frequency cable 23 serves as an electric Connection to a high frequency generator, not shown.

The connector approach 21st instructs a contact 24 with a recording channel 25th to accommodate the proximal end 18th the electrode 17th on, the recording channel 25th with in the plug receptacle 20th of the slide body 12 inserted plug 22nd with the electrode channel 16 of the slide body 12 flees.

According to the exemplary embodiments, the plug attachment 21st across its receiving channel 25th a latch 26th on. The latching 26th has a locking part 27 on that of a feather 28 transverse to the longitudinal axis 29 of the recording channel 25th into the recording channel 25th is pushed in.

Will the electrode 17th with their proximal end 18th through the electrode channel 16 into the recording channel 25th pushed in, so it latches in the end position of the electrode 17th the locking part 27 in a corresponding locking groove 30th the proximal end 18th permanent, ie not unlockable. The locking groove 30th can also be designed as a circumferential groove, not shown, in order to unlock when the electrode is rotated 17th to prevent their longitudinal axis.

To disconnect the electrode 17th and plug 22nd is as a means of severing 43 of the locked proximal end 18th a separator 31 intended. The separator 31 has one around one across the proximal end 18th the electrode 17th swiveling knife edge 32 on.

According to the exemplary embodiment of 1 to 5 the separating device exists 31 from a plate-shaped swivel part 33 at which the knife edge 32 is arranged. The swivel part 33 is about a parallel to the sliding longitudinal axis 15th on the sliding body 12 arranged pivot axis 34 over two sides on opposite sides of the sliding body 12 outstanding control units 35 pivotable in a predetermined pivot angle. The swivel part 33 points around the cross section of the guide tube 5 around a recess extending over the area of the pivot angle 36 on. In the exemplary embodiments, the knife edge is 32 ring-shaped and gives the lumen of the receiving channel in its non-pivoted position 25th of the connector base 21st free.

According to the embodiment of 1 to 4th is the sliding body 12 formed in two parts, with a first part 37 the connector receptacle 20th and the separator 31 has, while a second part 38 the electrode channel 16 and the separating device 31 covers in a cap shape.

According to the embodiment of 6 is the sliding body 12 ' essentially formed in one piece and has as a means for separating 43 ' a separator 31 ' on, their knife cutter 32 ' on a cylindrical swivel part 33 ' is arranged. The swivel part 33 ' is about a transverse to the sliding longitudinal axis 15 ' at the connector base 21 ' arranged pivot axis 39 of the swivel part 33 ' over the side from a recess groove 40 of the slide body 12 ' outstanding control parts 35 ' at a predetermined pivot angle for severing the proximal end 18th the electrode 17th pivotable.

According to the embodiment of 6 is the cylindrical swivel part 33 ' on the sliding body 12 ' pivotable about the pivot axis 39 attached.

According to the embodiment of 7th to 9 shows the sliding body 12 " transverse to its sliding longitudinal axis 15 " a plug receptacle 20 " with recess grooves 40 " on that to the keypads 35 " on the cylindrical swivel part 33 " the separator 31 " as a means of severing 43 " correspond. The swivel part 33 " is pivotable about the pivot axis 34 " at the connector base 21 " of the plug 22 " arranged.

1. a) der Stecker 22, 22', 22" wird mit seinem Steckeransatz 21, 21', 21" in die Steckeraufnahme 20, 20', 20" des Schiebekörpers 12, 12', 12" eingesteckt,
2. b) die Elektrode 17 wird mit ihrem proximalen Ende 18 von distal über das Elektrodenführungsrohr 19 des Elektrodentransporteurs 2 und weiter über den Elektrodenkanal 16 im Schiebekörper 12, 12', 12", 12"' in den Aufnahmekanal 25 des Steckeransatzes 21, 21', 21" soweit eingeschoben, bis das proximale Ende 18 der Elektrode 17 in der Verrastung 26 verrastet.

For connecting the electrode 17th with the plug 22nd , 22 ' , 22 " of the high-frequency cable 23 the following steps are carried out:

1. a) the connector 22nd , 22 ' , 22 " is with its connector 21st , 21 ' , 21 " into the plug receptacle 20th , 20 ' , 20 " of the slide body 12 , 12 ' , 12 " plugged in,
2. b) the electrode 17th is with its proximal end 18th from distal via the electrode guide tube 19th of the electrode conveyor 2 and further over the electrode channel 16 in the sliding body 12 , 12 ' , 12 " , 12 "' into the recording channel 25th of the connector base 21st , 21 ' , 21 " pushed in until the proximal end 18th the electrode 17th in the latch 26th latched.

So much for the connection between the electrodes 17th and plug 22nd , 22 ' , 22 " should be released again, the proximal end becomes 18th the electrode 17th by pivoting the separating device 31 , 31 ' , 31 " through the knife edge 32 , 32 ' , 32 " of the swivel part 33 , 33 ' , 33 " severed. Then the electrode 17th without its severed proximal end 18th distally out of the electrode guide tube 19th of the electrode conveyor 2 pulled out and in a subsequent step the plug attachment 21st , 21 ' , 21 " with the severed proximal end 18th the electrode 17th from the plug receptacle of the slide body. From the plug socket 20th , 20 ' , 20 " of the slide body 12 , 12 ' , 12 " pull out.

A reuse of the electrode conveyor 2 is now only with a new electrode 17th and a new high frequency cable 23 possible.

Of course, the embodiments discussed in the specific description and shown in the figures represent only illustrative embodiments of the present invention. In the light of the disclosure here, a person skilled in the art is provided with a broad spectrum of possible variations. In particular, the latching can for example be formed by a leaf spring, the free end of which engages in a groove or a suitable shape of the proximal end of the electrode.

List of reference symbols

1

Resectoscope

2

Electrode transporter

3

optics

4th

Resectoscope shaft

5

Guide tube from 2

6th

proximal end of 2

7th

Connector from 2

8th

Finger grip from 2

9

Connection cone from 2

10

Closure of 4th

11

Main body of 4th

12, 12 ', 12 "

Sliding body of 2

13th

resilient joint of 2

14th

Thumb ring

15, 15 ', 15 "

Sliding longitudinal axis of 12

16

Electrode channel from 12

17th

electrode

18th

proximal end of 17th

19th

Electrode guide tube from 2

20, 20 ', 20 "

Plug receptacle from 12

21, 21 ', 21 "

Connector approach

22, 22 ', 22 "

plug

23

High frequency cable

24

contact

25th

Recording channel

26th

Latching

27

Locking part of 26th

28

feather

29

Longitudinal axis of 25th

30th

Locking groove from 18th

31, 31 ', 31 "

Separator

32, 32 ', 32 "

Knife edge

33, 33 ', 33 "

Swivel part

34, 34 "

Swivel axis

35, 35 ', 35 "

Control panel

36

Recess of 33

37

first part of 12

38

second part of 12

39

Swivel axis from 33 '

40, 40 "

Recess groove from 12 ' , 12 "

43, 43 ', 43 "

Means of severing

Claims (9)

Electrode connector for connecting an electrode (17) designed to be exposed to high frequencies at its proximal end (18) to a plug (22, 22 ', 22 ") of a high-frequency cable (23) via a sliding body (12, 12', 12") of a electrode transporter (2) provided for use in a resectoscope (1), the sliding body (12, 12 ', 12 ") being displaceable in the direction of a longitudinal sliding axis (15, 15', 15") and parallel to the longitudinal sliding axis (15, 15 ') , 15 ") has an electrode channel (16) into which a proximal end (18) of the electrode (17) can be inserted, the sliding body (12, 12 ', 12") being transverse to the sliding longitudinal axis (15, 15', 15 " ) has a plug receptacle (20, 20 ', 20 ") for receiving a plug attachment (21, 21', 21") of the plug, the plug attachment (21, 21 ', 21 ") having a contact receptacle (24) with a receiving channel ( 25) for receiving the proximal end (18) of the electrode (17), and wherein the receiving channel (25) in the sliding body (12, 12 ', 12 ") inserted plug (22, 22', 22") is aligned with the electrode channel (16) of the sliding body (12, 12 ', 12 "), characterized in that in the plug attachment (21, 21', 21" ) a latch (26) is arranged so that when the electrode (17) is inserted in the plug attachment (21, 21 ', 21 "), the proximal end (18) of the electrode (17) cannot be disengaged from the plug attachment due to the latch (26) (21, 21 ', 21 ") is connected, that the electrode connection further has means (43, 43 ', 43 ") for separating the latched proximal end (18) of the electrode (17), and that the means for separating (43, 43') are used as a separating device (31, 31 ') , 31 ") which has a knife edge (32, 32 ', 32") that can be pivoted transversely to the proximal end (18) of the electrode (17) Electrode connection after Claim 1 , characterized in that the knife edge (32) is arranged on a plate-shaped pivoting part (33), that the pivoting part (33) about a pivoting axis (34) arranged parallel to the sliding longitudinal axis (15) on the sliding body (12) via a laterally from the Sliding body (12) protruding control part (35) is pivotable in a predetermined pivot angle. Electrode connection after Claim 2 , characterized in that the slide body (12) is displaceable along a guide tube (5), the longitudinal axis (29) of which forms the longitudinal axis (15) of the slide, that the pivot part (33) around the cross section of the guide tube (5) in the area of the pivot angle has a recess (36). Electrode connection after Claim 1 , characterized in that the knife edge (32 ', 32 ") is arranged on a cylindrical pivoting part (33', 33"), that the pivoting part (33 ', 33 ") is arranged around a transverse to the sliding longitudinal axis (15') on the plug attachment (21 ', 21 ") arranged pivot axis can be pivoted at a predetermined pivot angle via an operating part (35', 35") protruding laterally out of a recess groove (40, 40 ") of the slide body (12 ', 12"). Electrode connection after Claim 4 , characterized in that the pivot part (33 ', 33 ") about the pivot axis via two operating parts (35', 35") projecting laterally out of a recess groove (40 ") of the slide body (12 ', 12") on opposite sides. is pivotable in the predetermined pivot angle. Electrode connection after Claim 4 or 5 , characterized in that the cylindrical pivoting part (33 ') is pivotably attached to the sliding body (12'). Electrode connection after Claim 4 or 5 , characterized in that the cylindrical pivot part (33 ") is pivotably attached to the plug (22, 22 ', 22"). Electrode connection according to one of the Claims 1 to 7th , characterized in that the latch (26) has a latching part (27) which is held by a spring (28) transversely to the longitudinal axis (41) of the proximal end (18) of the electrode (17) in a latching groove (39) of the proximal end (18) can be pressed. Method for connecting an electrode (17) to a plug (22, 22 ', 22 ") of a high-frequency cable (23) by means of an electrode connector according to one of the Claims 1 to 8th , characterized in that the following steps are carried out: a) Inserting the plug (22, 22 ', 22 ") with its plug attachment (21, 21', 21") into the plug receptacle (20, 20 ', 20 ") of the slide body (12, 12 ', 12 ") of the electrode transporter (2), b) pushing in the electrode (17) with its proximal end (18) from distal over an electrode guide tube (19) of the electrode transporter (2) and further over the electrode channel (16 ) in the sliding body (12, 12 ', 12 ") in the receiving channel (25) of the plug attachment (21, 21', 21") to the proximal end (18) of the electrode (17, 17 "', 17"") in the latching (26) is permanently latched, c) to separate the connection, the latched proximal end (18) of the electrode (17) is separated by means of the means (43, 43 ', 43 ") for separation in that the proximal end ( 18) the electrode (17) is separated by pivoting the knife edge (32, 32 ', 32 ") of the separating device (31, 31', 31"), d) pulling out the electrode (17) without its separated proximal end (18) distally out of the electrode guide tube (19), and e) pulling out the plug attachment (21, 21 ', 21 ") with the detached proximal end (18) of the electrode (17) from the plug receptacle (20, 20) ', 20 ") of the slide body (12, 12', 12").

Images