fig1 - 7 show a first embodiment of an adapter 1 for mechanically and electrically connecting an implantable electrode 2 , which is shown in a cut - away view in the drawings , to a measuring device , which is not shown in detail , with the aid of test terminal contacts , as shown by way of example in fig5 and 10 in the form of alligator clips 3 , 4 . at the proximal end , which is apparent especially from fig1 , 8 and 13 , the electrode 2 comprises a connector 5 , which has four connecting contacts , three 6 . 1 , 6 . 2 , 6 . 3 in the form of annular surfaces on the connector body 7 , and a contact 6 . 4 on a pin 9 at the connector tip . the electrode 2 further comprises a central lumen 8 , which is guided out at the end of the electrode 2 via the pin 9 extending coaxially to the electrode 2 . the adapter housing 10 has a segmented outer shape , the rough contour of which can be described as being cuboid having a length l , width b and height h . it is made of an electrically insulating material , such as an injection molded plastic material , for example . a circuit board 11 comprising two contact elements 12 . 1 , 12 . 2 in the form of metallic contact strips is inserted in the adapter housing 10 , wherein fig1 - 4 and 6 show the exposed contact surfaces 13 . 1 , 13 . 2 used to connect the alligator clips 3 , 4 . in the connecting region to the connector 5 , spring contacts 14 . 1 , 14 . 2 , which in each case are fixed to the circuit board 11 , are electrically connected to the contact elements 12 . 1 , 12 . 2 and establish the contact with the connecting contacts 6 . 3 and 6 . 4 of the electrode 2 when the adapter 1 is closed ( see fig6 ). the guides formed by the side walls 15 of the structure 16 on the adapter housing 10 and the protruding narrow sides 17 receive the “ mouth ” 18 of the alligator clips 3 , 4 ( see fig5 and 12 ), wherein clamping safety is further increased by the ridges 24 at the lower face of the adapter housing 10 . a receiving element 19 , which in the exemplary embodiment shown in fig1 - 7 is disposed in a drawer 20 , is provided for the connector 5 in the adapter 1 . this receiving element 19 corresponds to the shape of the connector 5 , whereby the connector 5 is received in the correct position and in a precisely defined manner in the drawer 20 , as is shown in fig1 . the position of the drawer 20 can be varied in the direction of the width b of the adapter housing 10 between the open position shown in fig1 and 3 and the contact position shown in fig2 , 4 and 5 and , more specifically , it is mounted on the adapter housing 10 dispaceably by way of corresponding guides 21 . in the open position according to fig1 and 3 , in which the connector 5 is inserted in the receiving element 19 , and in the contact position shown in fig2 and 4 , the drawer 20 is latched relative to the adapter housing 10 . the latching engagement v is formed by a detent tongue 33 , which is configured on the drawer 20 and which , with a projection 34 , engages in a detent recess 35 in the adapter housing 10 in front of a trigger button 22 , which is apparent in fig1 , 2 , 5 and 7 and by means of which an elastic spring tongue 23 is connected to the adapter housing 10 so as to be displaceable in the direction of the height h . the latching engagement v can be removed by the trigger button 22 by pressing the same , whereby the projection 34 is lifted out of the detent recess 35 . the drawer 20 is thus freely movable . from the open position shown in fig1 and 3 , the drawer 20 is pushed with the inserted connector 5 transversely to the longitudinal direction a of the connector into the adapter housing 10 . in the contact position of the drawer 20 , shown in fig2 , 4 and 5 , the two connecting contacts 6 . 3 and 6 . 4 are electrically guided out via the spring contacts 14 . 1 , 14 . 2 of the contact elements 12 . 1 , 12 . 2 . by the latching engagement of the drawer 20 in this contact position , a safe connection is provided between the connector 5 and the contact elements 12 . 1 , 12 . 2 . as shown in fig5 , a respective alligator clip 3 , 4 is pushed thereon . the seat of the clip on the contact elements 12 . 1 , 12 . 2 is further improved by ridge - shaped configurations 24 on the lower face of the adapter housing 10 , as shown in fig3 and 4 . these ridges are intended to prevent the alligator clips 3 , 4 from sliding off . since the alligator clips 3 , 4 are covered toward the outside , together with the contacts thereof , by insulating shoes 25 , in the overall a clean contact connection , which is protected from contact , is implemented between a measuring device and the connector 5 via the alligator clips 3 , 4 and the adapter 1 . as is further shown in fig5 , the drawer 20 and the adapter housing 10 comprises an opening 26 , by way of which the pin 9 with the lumen 8 of the electrode 2 can also be accessed in an unobstructed manner in the contact position , shown in fig2 , 4 and 5 . the mandrin 27 , which is shown in fig5 , can thus be easily replaced by pulling it by the handle 28 thereof , or it can be actuated in another manner , without requiring any change to the positioning of the connector and adapter 1 . fig8 - 12 show a second embodiment of the adapter 1 ′. this differs from the embodiment according to fig1 - 7 in the design of the receiving tray . this tray is implemented by a folding tray 29 , which is mounted on the adapter housing 10 pivotably about a pivot axis s extending parallel to the length . in the open position shown in fig8 and 10 , the folding tray 29 is folded up , whereby the receiving element 19 is accessible laterally for the connector 5 of the electrode 2 ( see fig8 and 10 ). the connector 5 inserted in the receiving element 19 is pushed into the adapter housing 10 by the pivoting motion about the pivot axis s and is internally connected there mechanically and electrically to the contact elements 12 . 1 , 12 . 2 . the latter are designed analogous to the exemplary embodiment of fig1 to 7 and , thus , do not require explanation again . all of the components of the adapter 1 ′ which correspond with those of the adapter 1 according to fig1 - 7 are denoted by identical reference numerals , whereby reference can be made to the description according to fig1 - 7 . it shall be added that the folding tray 29 can likewise be latched in the open and contact positions according to fig8 and 10 , and also fig9 , 11 and 12 . the latching engagement is achieved by simple pressing or pulling on the folding tray 29 . a trigger button is not provided here . it is important to mention that — as shown in fig1 — the adapter 1 ′ is also designed to allow , via an opening 26 , a mandrin 27 to be suitably maneuvered via the handle 28 thereof during the connection of a measuring device by the alligator clips 3 , 4 . fig1 - 14 show a further embodiment of an adapter 1 ″, which corresponds to the embodiment according to fig1 - 7 . the only difference is that the trigger button 22 for removing the latching engagement of the drawer 20 in the open and contact positions has been omitted . analogous to the exemplary embodiment according to fig8 - 12 , these latching engagements can be overcome by simply pulling or pressing on the drawer 20 . fig1 finally shows an adapter 1 ′″, which in the basic design corresponds to the adapter 1 according to fig1 - 7 , however , it is designed to contact all four connecting contacts 6 . 1 to 6 . 4 of the connector 5 . components that correspond with those of the adapter 1 have been provided with identical reference numerals and do not require explanation again . in contrast to the aforementioned exemplary embodiment , the variant of the adapter 1 ′ according to fig1 , however , shows four contact elements 12 . 1 to 12 . 4 on the circuit board 11 , with correspondingly exposed contact surfaces 13 . 1 to 13 . 4 , at which respective alligator clips can be placed . analogous to fig6 , in the interior of the adapter housing 10 , the contact elements 12 . 1 to 12 . 4 on the circuit board 11 are connected to spring contacts , which can be brought in electrical connection with the individual connecting contacts 6 . 1 to 6 . 4 in the closed position of the adapter 1 ′ shown in fig1 . finally , all four exemplary embodiments of the adapter 1 , 1 ′, 1 ″, 1 ′ have in common that the adapter housing 10 is provided with polarity symbols 30 and 31 of “+” and “−”, respectively , which are associated with the respective contact surfaces 13 . 1 , 13 . 2 . the polarity symbols 30 , 31 are designed in a raised manner on the upper face 32 of the structure 16 of the adapter housing 10 . it will be apparent to those skilled in the art that numerous modifications and variations of the described examples and embodiments are possible in light of the above teachings of the disclosure . the disclosed examples and embodiments are presented for purposes of illustration only . other alternate embodiments may include some or all of the features disclosed herein . therefore , it is the intent to cover all such modifications and alternate embodiments as may come within the true scope of this invention , which is to be given the full breadth thereof . additionally , the disclosure of a range of values is a disclosure of every numerical value within that range .
an adapter for mechanically / electrically connecting an implantable electrode , via the proximal connector thereof including at least one connecting contact for the electrode , to at least one test terminal contact of a measuring device , includes an electrically insulating adapter housing , a connector receiving element adapted to connector shape , and at least one contact element disposed in the adapter housing establishing contact between the at least one connecting contact of the connector and the at least one test terminal . a receiving tray , having the receiving element for the connector , is mounted on the adapter housing and variable between open and closed contact positions . in the open position , the connector is inserted in the receiving element in a defined position and removed therefrom . in the contact position , the at least one connecting contact of the connector is brought in contact with the contact element in the adapter housing in a defined manner .