DE102008056039B4 - Device for holding and supplying suction electrodes of an ECG system and / or an ergometry measuring station - Google Patents

Abstract

Device (1) for holding and supplying suction electrodes (21) of an EKG system and / or an ergometry measuring station, consisting of a vertical support tube (2) and a multi-part boom (22) with tubular pieces, which via a first capsule joint (3) is pivotably mounted at the upper end of the vertical support tube (2), and at its end facing away from the first capsule joint (3) a distributor head (20) provided with the suction electrodes (21) is arranged, the distributor head (20) via the pipe sections and the vertical support tube (2) with a compressed or suction air source (31) and through a multi-core electrical connection cable (30) guided through the pipe sections and the support tube (2) to an electrocardiograph (32) and with the electrical and pneumatic supply lines of the individual suction electrodes (21) are connected, characterized in that the pipe sections of the boom (22) have a guide tube (4) and a boom include ear (6) and that the boom (22) with its guide tube (4) with the support tube (2) ...

Description

The invention relates to a device for holding and supplying suction electrodes of an ECG system and / or Ergometriemessplatzes, consisting of a vertical support tube and a multi-part, tubular pieces having boom which is pivotally mounted on a first capsule joint at the upper end of the vertical support tube, and at the end facing away from the first capsule joint, a distributor head provided with the suction electrodes is arranged, the distributor head being connected to an electrocardiograph via the tube pieces and the vertical support tube with a pressure or suction air source and through a multi-core electrical connection cable led through the tube pieces and the support tube is and wherein the distribution head the electrical and pneumatic supply lines of the individual suction electrodes are connected.

Devices of the generic type are known in different embodiments for a long time.

In such a known device, the support frame consists of a vertical column tube part which is fixed to a mobile trolley or table. At the upper end of the column tube part a substantially U-shaped bent bracket is pivotally mounted. The two U-legs of this bracket are substantially horizontal and are divided by another joint with a vertical axis. By this joint, the upper bracket part can be pivoted separately relative to the lower bracket part. This upper bracket part also carries the distributor head. The existing of a flexible hose air line and the electrical connection cable are laid from the lower end of the column tube part to the distribution head within the individual pipe sections of the support frame. The air line and the connecting cable are inserted separately into a lateral or lower opening at the lower end of the column tube part in this (folder of the company Ing. M. Ohlenschläger, medical technology, 61462 Königstein 3). The in this device consists of several interconnected by two joints pipe parts existing support frame not only requires relatively high production costs. Also, its handling is not easy due to the two swivel arm joints.

In another known device of the generic type (advertising the company Nies GmbH & Co. KG, 89134 Blaustein-Herrlingen), the support frame also consists of a vertical column tube part. In the region of the upper end of the column tube, a vertical extension tube is rotatably mounted about its vertical axis. At the upper end of the extension tube is a tube hinge with a horizontal hinge axis to which a pivotable about this hinge axis boom tube is attached. This boom pipe terminates at a second pipe hinge with a horizontal pivot axis, to which a vertical pipe section is connected. At the lower end of this pipe section of the distributor head is arranged. Also in this known device, the compressed air supply is guided through the column tube and the swivel arm to the distributor head. In this known device, the range of action is essentially unchangeable. Also, the maximum pivot angle of the two pipe hinges are relatively small, so that the height adjustment of the swing arm or the distributor head is only limited possible.

Next is a holding and supply device for ECG suction electrodes of the generic type of the DE 298 20 332 U1 known. This device of the generic type seeks to avoid the disadvantages of the devices described above. In particular, a device is to be provided here which, in a simple, compact and cost-effective construction, has a range of action which can be changed as required, as well as a protected cable guide.

In this known device, this is to be achieved in that the pivoting boom consists of a guide tube and a telescopically on or slidably mounted in this extension tube. Furthermore, here the compressed air or suction air supply to the distributor head should be effected directly through the guide tube to the extension tube into a distribution chamber. From this distribution chamber, the compressed air or suction air is distributed to the individually connected to these pneumatic supply lines of the individual suction electrodes.

The variable length of the pivoting arm makes it possible in a simple manner to set the operating radius, ie the radial distance of the distributor head from the column tube part, to the respective local and situational requirements. This should always be guaranteed optimal handling. To achieve this handling, in particular the substantially horizontally extending portion of the pivot arm is accommodated in a guide tube and telescopically extendable or insertable therefrom. In this case, both the "air line" for the air supply to the electrodes and an additional electrical connection cable are routed to the suction electrodes. The connection region between the horizontal pivot arm and the vertical column tube part is arcuate. This in turn means that in the telescopic extension or shortening of the pivot boom by pulling or pushing the Extension tube in the guide tube of the air hose or the air line must follow this arcuate connection area together with the arranged in this air line connection cable. As a result, a considerable frictional resistance is brought about, in particular during the extension or when the extension tube is pulled out of the guide tube, so that in the extreme case, the extension can only take place by appropriately tracking the air line together with the connection cable. However, an advantage of this embodiment is that in particular the "radial" length of the pivot arm can be changed, so that this device is adaptable to the external working conditions.

The disadvantage, however, is firstly that here the connection cable must be threaded through the air duct before it can be drawn into the vertical column tube part or the telescopically extendable pivoting arm. Also, this feeding is relatively laborious.

From the DE-OS 28 37 279 a suction electrode device is known in which the supply hoses of the individual suction electrodes are connected to a distributor which is rotatably mounted at the free end of a four-bar linkage about a substantially vertical axis. This four-bar linkage is arranged as a boom on a stand consisting of a vertical rotatable column tripod. It is provided with a substantially horizontally projecting handlebar having two separate, each consisting of a tube conduction paths on the one hand for the compressed air and on the other hand for the cable. The two line paths are arranged between two common pivot joints, through which the compressed air and the cables are passed separately. The swivel joints each consist of two cup-shaped joint capsules, which have central hollow hubs. With their oppositely directed faces of the joint capsules are each sealingly on plane-parallel surfaces of a journal. The journals are each provided with separate channels through which the compressed air and the cables are guided in the hinges and out of these. In this device, the cantilever arms always keep the header at substantially the same distance from the stand. They can thus be a hindrance during transport from one job site to another.

Accordingly, the invention has the object, a device of the generic type such that on the one hand this is extremely easy to produce and on the other hand is flexible as possible adapted to the appropriate working conditions. Above all, the boom tube and the distributor head with the connecting cables and suction electrodes during transport from one place to another and when parking in a non-disturbing space-saving position to be brought and can easily be brought into the optimal working position during use.

The object is achieved according to the invention together with the features of the preamble of claim 1, characterized in that the tube pieces of the boom comprise a guide tube and a boom tube and that the boom is pivotally connected with its guide tube to the support tube via the first capsular joint and that the boom tube pivotally connected to the guide tube via a second capsular joint and the distributor head is located at an end of the cantilever tube opposite the second capsule joint, and in that the cantilever tube is rigidly connected to a guide rod articulated to a guide slide movably guided on the support tube and that the boom tube from a horizontal position of use can be brought together with the guide rod under execution of a pivoting movement in a rest position and that the guide slide during pivoting of the boom tube at the same time a downward movement along the support tube leads and that the capsule joints are designed to secure the position of adjusted pivot positions of the boom tube self-locking.

The embodiment according to the invention provides a device for holding and supplying suction electrodes of an ECG system and / or an ergometry measuring station, which is extremely easy to manufacture and, in particular, can be handled in an extremely simple manner. Due to the special design of the boom for the distributor head, it is possible to place it if necessary in a large or small radial distance from the support tube. It is therefore not a hindrance during transport and parking, but it has a large operating radius when used.

For this purpose, according to the invention, on the one hand, it is provided that the cantilever is designed in two parts and has a cantilever tube which is connected to a guide tube by means of a capsule joint. This guide tube is in turn pivotally connected via another so-called. Capsular joint with the upper end of the vertically extending support tube. By this construction, these pipe sections of the boom are not axially against each other displaceable, but against each other pivotally. As a result, it would also be possible for a hose to be pulled through without difficulty as a compressed air line, so that it is protected from the outside. There are no axial relative movements between the individual pipe sections, as is partially the case in the prior art.

However, it is also here according to claim 2, the advantageous possibility that the support tube, the guide tube and the boom together with the capsule joints form an airtight compressed air line to the header and to move the electrical connection cable through the individual pieces of pipe in a simple manner.

Further advantageous embodiments of the invention are the subject of the other dependent claims.

Thus, by the embodiment according to claim 3, the advantage can be achieved that the position of the boom tube is stable in each manually adjustable position. In addition, the boom tube always has a good guide in its pivoting movements. Due to the double-joint articulation of the boom tube and the articulation of the guide rod on the guide tube thus a precise guidance of the boom tube is achieved during vertical pivoting of the boom tube, wherein the radial distance of the header to the support tube is arbitrarily adjustable during this pivoting movement.

It is also advantageous to make the guide tube according to claim 4 shorter than the cantilever tube, so that in the above-described pivotal movement of the distributor head is adjusted at the same time vertically upward in its radial movement towards the support tube. In particular, in its radially inwardly adjusted end position thus the distributor head from its horizontal working position, in which he has the largest radial distance from the support tube, moves up out, so that it consumes the smallest space when not in use in the horizontal direction and does not bother.

The embodiment according to claim 5 is advantageous in that also in the two extreme positions of the guide slide, so in the two end positions of the boom tube, no dead center of the joints can arise.

With the embodiments according to claims 6 and 7 can be ensured on the support tube in a simple manner a precise, almost backlash-free and yet smooth leadership of the guide slide. These embodiments according to claims 6 and 7 contribute to the improvement of leadership and ease.

The embodiment according to claim 8 reliably prevents the side walls of the guide slide from coming into contact with the support tube.

With the embodiment according to claim 9 ensures that the air-tight connection between the guide rod and the capsule joint of the boom tube can not be damaged from the outside.

The embodiment according to claim 10 results in two extreme positions of the boom tube, in which this occupies the functionally most favorable position.

Due to the configuration according to claim 11 ensures that the boom tube can be brought with its distributor head in the horizontal position with the largest operating radius.

The further claims 12 to 18 relate to the special design of the capsule joints used, by means of which the Tragohr, the guide tube and the boom tube are connected to each other airtight and at the same time pivotally. Thus, the capsule joints used generally serve for the articulated connection of pipe sections, which together form an air-tight compressed-air line as a support frame of a distributor head provided with suction electrodes of an ECG system.

Thus, the embodiment of the capsule joint according to claim 12 with respect to that of DE 28 37 279 A1 Known hinges advantageous in that the two coupling housing can be sealed with their annular end faces directly against each other and no intermediate member (extension of a pin) with two plane-parallel sealing surfaces is required.

By this configuration, the capsule joints can be absolutely tightly connected to the pipe sections, so that the complete system, consisting of the two capsule joints, the vertically extending support tube and the two pipe sections of the boom results in an absolutely tight pressure or suction air line to the distributor head.

In addition, due to this special embodiment of the capsule joints an extremely simple installation, in particular of the electrical connection cable leading through these tubes to the distributor head out possible.

For insertion of the connection cable, the vertical support tube may have in its lower end region, for example, a corresponding sealing plug, through which, on the one hand, the connection cable is guided and on which, on the other hand, the "air line" is connected.

According to claim 13 it is provided that the two coupling housing of the respective capsule joint each by means of a bearing in the bearing hubs bearing screw and an outside of the End face of the clutch housing attached, self-locking retaining nut are interconnected. Instead of such a bearing screw can also be provided a threaded rod on which a retaining nut can be screwed on both sides. These self-locking retaining nuts can also be designed as so-called cap nuts.

For optimal generation and permanent preservation of the airtight connection of the two coupling housing parts of a capsule joint causing pressing forces, the particularly advantageous embodiment is provided according to claim 14, which is provided by this embodiment also envisaged according to claim 15 use of an elastic sealing ring.

In order to achieve a reliable seal in the field of bearing hubs in a simple manner, the embodiments according to claim 16 are provided.

Finally, the embodiments according to claims 17 and 18 are provided for complete system sealing.

As with known devices of the generic type, the support tube or the entire device can be arranged by means of suitable mounting elements on a trolley or the like. Or on a wall, said mounting elements are suitably designed such that pivotal movements of the boom about the axis of the support tube are possible ,

With reference to the drawings, an embodiment of the invention will be explained in more detail below, wherein the invention is not limited in itself to this specific embodiment illustrated. It shows:

1 in side view of a mounted on a trolley device with a maximum extended boom;

2 in a partial side view of the device

1 with a partially retracted boom;

3 an exploded perspective view of the individual parts of the first provided for connecting a guide tube with a vertical support tube capsule joint;

4 in perspective exploded view of a second capsular joint, which is provided for connecting the boom tube to the guide tube with a shortened guide rod, which is fastened to a housing part of the capsule joint;

5 in section, the two capsule joints with the guide tube and partially the boom tube;

6 a vertical section through a guide slide, on which the guide rod is articulated;

7 a horizontal section VII-VII through the guide slide 6 ,

1 shows a simplified side view of an inventive device 1 which is a vertical support tube 2 having. In the upper end of this support tube 2 is a first capsule joint 3 provided, via which a guide tube 4 with one end pivotally at the upper end of the support tube 2 is stored. At its other end is the guide tube 4 with a second capsular joint 5 connected, over which the guide tube 4 with a boom tube 6 articulated communicates. The boom tube 6 stands over a coaxial to this boom tube 6 extending guide rod 7 (shown in dashed lines) with a guide slide 8th in connection.

Here, in the present embodiment, the guide rod 7 via a housing part of the second capsule joint 5 rigid with the boom tube 6 connected. The guide slide 8th is on the vertical support tube 2 over several guide rollers 9 . 10 and 11 vertically in the direction of the double arrow 12 slidably arranged. With her the second capsule joint 5 opposite end is the guide rod 7 through a jointed bearing 24 swiveling with the guide slide 8th connected.

The support tube 2 is in 1 shown shortened axially. In the present embodiment, the support tube 2 over two pivot bearings 13 and 14 on the side wall of a trolley 15 rotatably mounted. In this case, the support tube 2 together with the guide tube 4 , the boom tube 6 as well as the guide rod 7 relative to the trolley 15 around the vertical axis 16 of the support tube 2 take any swivel position. By means of a bearing ring 17 supports the support tube 2 in the vertical direction on the lower pivot bearing 14 down from.

In the lower end of the support tube 2 is a sealing plug 18 intended ( 1 ) to which an air line 19 is connected, via which the required at the suction electrodes compressed air or suction air from a compressed air or Saugluftquelle 31 through the support tube 2 , the guide tube 4 and the boom tube 6 can be supplied.

Through this plug 18 is also a multi-core connection cable 30 passed through which through the support tube 2 , the guide tube 4 and the boom tube 6 to a distributor head 20 guided and with the distributor head 20 connected is. This is the one with several suction electrodes 21 provided distribution head 20 with an electrocardiograph 32 controllable. Such distribution heads are already known from the prior art, in particular from DE 298 20 332 U1 well known.

In the illustrated embodiment of the 1 is the one from the guide rod 7 , the guide tube 4 and the boom tube 6 existing booms 22 in its extended deployment position, in which the management staff 7 and the boom tube 6 occupy a substantially horizontal position. In this position, in which the guide slide 8th on the upper side at the first capsular joint 3 is pending and the distributor head 20 is in the largest possible radius of action, the guide rod 7 in cooperation with the guide slider 8th stabilized.

During a downward movement of the guide slide 8th from the position of 1 in the direction of the arrow 28 simultaneously guides the guide rod 7 together with the boom tube 6 a pivoting movement in the direction of the arrow 23 around the axis of the hinge bearing 24 the guide rod 7 on the guide slide 8th out. This is the guide tube 4 in the direction of the arrow 25 around the bearing axis 26 of the first capsular joint 3 pivoted, and the boom tube 6 makes a pivoting movement about the axis of the capsule joint 5 in the direction of the arrow 29 , During this pivoting movement of the distributor head 20 both a vertical movement against the arrow 28 as well as a horizontal movement in the direction of the arrow 27 out, so that the horizontal or radial distance of the distributor head 20 to the support tube 2 reduced.

At the in 2 shown pivot position is the boom 22 with his boom tube 6 as well as its guide rod 7 in its upper end position, by means of a on the support tube 2 adjustable stop 33 is adjustable. It can be seen that the distributor head 20 in this position compared to his in 1 shown raised lower vertical position and radially to the support tube 2 is adjusted.

If the stop 33 is further down, the boom tube can be 6 in an even steeper, almost vertical rest position, until finally the capsule joint 5 on the support tube 2 is applied.

In the present embodiment, both the guide tube 4 as well as the guide rod 7 expediently shorter than the boom tube 6 , so that for this adjusting movement a still acceptable height of the support tube 2 results and door openings can be passed through in the usual height.

Both in this extreme position of 2 as well as in the other extreme position of the 1 form the guide tube 4 and the guide rod 7 with the support tube 2 a triangle that is almost isosceles, as the guide tube 4 and the guide rod 7 by design only slightly different in terms of length.

By using the two capsule joints 3 and 5 as well as by the articulation of the boom tube 6 over the guide rod 7 and the guide slide 8th on the support tube 2 is an axial displacement, in particular of the boom tube 6 relative to the guide tube 4 avoided, so that there are no shifts in the connection cable 30 relative to the support tube 2 as well as relative to the guide tube 4 and to the boom tube 6 can occur and thus an extremely simple handling is given. The guide of the boom tube 6 over the second capsular joint 5 and the guide rod 7 as well as the guide slide 8th on the support tube 2 at the same time results in a defined movement of the distributor head 20 which makes handling extremely easy and safe.

In the present embodiment, the support tube 2 , the first capsular joint 3 , the guide tube 4 , the second capsular joint 5 and the boom tube 6 as "air line" for supplying compressed air or suction air to the distributor head 20 used. This has the particular advantage that here no separate compressed air line or suction air line must be passed through said components, which in particular simplifies the assembly considerably. To be able to pressurize this system with compressed air or suction, the two capsule joints 3 and 5 specially designed.

This shows 3 the basic structure of the capsule joint 3 in a perspective exploded view.

This first capsule joint 3 consists of two cup-shaped coupling housings 35 and 36 , which each have a circumferential cylinder wall 37 respectively. 38 exhibit. Within this cylinder wall 37 respectively. 38 each is a central warehouse hub 39 respectively. 40 provided, via which the two clutch housing 35 and 36 are rotatably coupled to each other. For this purpose, a connecting member in the form of a bearing screw 41 provided, which through the corresponding through holes 42 respectively. 43 the respective warehouse hub 39 respectively. 40 stuck through it.

On the outside is on the front wall of each coupling housing 35 and 36 each a circular bearing disc 44 respectively. 45 placed, which in particular for distributing the contact forces when pressing the clutch housing 35 and 36 serves. For connecting the two coupling housings 35 and 36 is on the bearing screw 41 a self-locking retaining nut 46 screwed. So that the contact forces, through which the clutch housing 35 and 36 held together, are constantly effective, is between the screw head 47 and the bearing disc 45 on the one hand and the holding nut on the other 46 and the bearing disc 44 on the other hand in each case a spring washer 48 respectively. 49 intended.

In the assembled state thus are the two clutch housing 35 and 36 with their circumferential face surfaces 50 respectively. 51 constantly under tension to each other. For sealing the two coupling housings 35 and 36 In this case, an elastic sealing ring is provided, which in 3 not shown in detail. To accommodate this sealing ring, the two coupling housing 35 and 36 in each case an inner annular recess 52 respectively. 53 in which in the assembled state of the corresponding sealing ring is received under at least slight bias. Instead of an inner sealing ring can also be in a Nutfederverbindung in the region of these end faces 50 and 51 be provided provided sealing ring. Such a configuration has the advantage that the seal seals both at negative pressure and at overpressure.

In the present embodiment, the two bearing hubs 39 and 40 by means of a plugged sealing tube 58 who was the two camp havens 39 and 40 under radial tension encloses, sealed against each other, so that in the assembled state, the two clutch housing 35 and 36 form a closed capsule joint.

For tight connection of the capsule joint 3 with the in the 1 and 2 illustrated support tube 2 is on the clutch housing 35 a vertically downwardly directed pipe socket 54 provided with a through bore into which the upper end of the support tube 2 is plugged in. For tight connection of the support tube 2 with this pipe socket 54 Here is an adhesive bond, screw or any other suitable connection conceivable.

To connect the capsule joint 3 with the guide tube 4 is also the clutch housing 36 with a pipe socket 55 provided with through hole into which the guide tube 4 can be used. Again, to connect the guide tube 4 with the pipe socket 55 be provided any suitable connection, in particular an adhesive bond, welded connection or tight screw connection.

The capsule joint 3 , consisting of the two coupling housings 35 and 36 , forms a hermetically sealed cavity. By suitable dimensioning of both pipe sockets 54 and 55 as well as the clutch housing 35 and 36 can through the two clutch housing 35 and 36 the connection cable 30 from the support tube 2 through the capsule joint 3 through the guide tube 4 into and through this into the capsule joint 5 be guided. Will such a connection cable 30 spirally with half a turn or a complete turn around the two hubs 39 and 40 guided around, no obstruction of a pivoting movement of the two clutch housing is formed 35 and 36 up to today.

In principle the same way as the first capsule joint 3 is also the second capsule joint 5 educated. This capsule joint 5 is exemplary in its individual components 4 shown in exploded view. This is also the case of this second capsule joint 5 two coupling housings 65 and 66 on, which are also pot-shaped or cup-shaped and, accordingly, each a circumferential cylinder wall 67 respectively. 68 form. Within these cylinder walls 67 . 68 is also a central warehouse hub 69 respectively. 70 provided, via which the two clutch housing 65 and 66 coaxially with each other are connected to each other.

For articulated connection of these two clutch housing 65 and 66 also serves a bearing screw 71 which through the respective through holes 72 respectively. 73 the warehouse hubs 69 and 70 stuck through it. On the outside are for the two clutch housing 65 and 66 also each bearing washers 74 respectively. 75 provided, which serve in particular for distributing the contact pressure. To produce this contact pressure here also serves as a self-locking nut retaining nut 76 ,

To the contact pressure of the two clutch housing 65 and 66 In the assembled state to be able to maintain permanently as bias, here are two spring washers 78 and 79 provided, of which the spring washer 79 between the screw head 77 the bearing screw 71 and the bearing disc 75 is arranged while the spring washer 78 in the assembled state between the retaining nut 76 and the bearing disc 74 is arranged.

Also the cylinder walls 67 and 68 the coupling housing 65 and 66 each have a circumferential plane flat face surface 80 respectively. 81 on, with which the two clutch housing 65 and 66 in the assembled state to each other. Each of these end ring surfaces 80 and 81 is each with an annular recess 82 respectively. 83 provided, which serve to receive a not shown in the drawing elastic sealing ring.

For holding the boom tube 6 is the clutch housing 65 also with a radially extending pipe socket 84 provided in which the boom tube 6 is insertable. For dense connection, any suitable method, such as adhesive bonding, welded connection or even a tight screw connection, can also be provided here.

Also the clutch housing 66 has a radially extending pipe socket 85 on, in which the guide tube 4 fits properly. Also the guide tube 4 can in the pipe socket 85 be fixed by an adhesive bond, welded connection or a tight screw connection.

Next is also in this embodiment of the second capsular joint 5 for mutual sealing of the two bearing hubs 69 and 70 a sealing tube 88 provided, which with radial tension these Lagerernaben 69 and 70 sealingly encloses.

How out 4 it can be seen has the guide rod 7 at its rear with the guide slide 8th connected end a transverse bore 90 on, which serves as a bearing bore. At the opposite end is the guide bar 7 with a thread 91 provided that a radial bore 100 ( 5 ) of the cylinder wall 67 protrudes over which the guide rod 7 with the coupling housing 65 connected is. For making a tight and tight connection between the guide rod 7 and this cylinder wall 67 are two form-elastic washers 92 and 93 as well as two threaded nuts 94 and 95 provided on both sides of the cylinder wall 67 on the thread 91 are braced against each other.

To protect this screw against external influences, is the guide rod 7 with a cladding tube 96 surround ( 1 and 2 ). This cladding tube 96 also serves as a screen and has in the mounted state in the region of the coupling housing 65 at the washer 92 his centering leadership. In his to the guide shifter 8th directed end portion has the cladding tube 96 also a transverse bore 97 on, over which the cladding tube 96 together with the guide rod 7 on the guide slide 8th is pivotally mounted.

5 shows a partial horizontal section through the mounted boom 22 , It can be seen that the boom tube 6 in the pipe socket 84 of the coupling housing 65 plugged in and attached there. The guide tube 4 is fitting on the one hand in the pipe socket 85 of the coupling housing 66 and on the other hand in the pipe socket 55 of the coupling housing 36 used. This is about the guide tube 4 between these two coupling housings 36 and 66 or between the two capsule joints 3 and 5 a rigid, channel-like connection that can be used as a suction air or compressed air line and cable routing. This guide tube 4 opens in each case open via the respective associated pipe socket 55 respectively. 85 in the respective clutch housing 36 respectively. 66 ,

Furthermore, in 5 indicated in dashed lines that the support tube 2 from below into the pipe socket 54 is plugged in.

In 5 are also the sealing rings 101 respectively. 102 between the respective coupling housings 35 and 36 respectively. 65 and 66 shown. Also is in 5 the connection cable 30 recognizable, which through the support tube 2 through which out of the clutch housings 35 and 36 formed first capsular joint 3 , through the guide tube 4 through which out of the clutch housings 65 and 66 formed second capsular joint 5 as well as through the boom tube 6 passed through. In the area of the clutch housing 35 and 36 as well as in the area of the clutch housing 65 and 66 is the connection cable 30 spirally around the bearing hubs 39 . 40 respectively. 69 . 70 guided around, allowing a relative rotational movement of the clutch housing 35 and 36 respectively. 65 and 66 against each other through the connection cable 30 not hindered.

Next is out 5 recognizable that the support tube 2 , the first capsular joint 3 , the guide tube 4 , the second capsular joint 5 and the boom tube 6 form a coherent cavity, which can be used as a pressure line or suction line. Also, the 5 be taken that the two sealing hoses 58 and 88 the respective associated hubs 39 and 40 respectively. 69 and 70 connect airtight with each other.

Alternatively to this type of seal or in addition to this seal can also between the bearing discs 44 . 45 respectively. 74 . 75 and the respective associated clutch housing 35 and 36 respectively. 65 and 66 a sealing ring (not shown in the drawing) may be provided. These can be in the vicinity of the respective through hole 42 . 43 respectively. 72 . 73 of the respective coupling housing 35 . 36 respectively. 65 . 66 corresponding depressions 105 . 106 . 107 respectively. 108 be provided ( 5 ).

Next is out 5 recognizable as the spring washers 48 . 49 respectively. 78 . 79 are arranged, through which a permanent compressive stress between the housing parts 35 and 36 respectively. 65 and 66 the two capsule joints is generated.

The spring washer 48 is between the holding nut 46 and the bearing disc 44 arranged. The spring washer 49 however, is located between the screw head 47 the bearing screw 41 and the second bearing disc 45 , Analogous to this is also the spring washer shown on the left 78 between the holding nut 76 and the bearing disc 74 arranged. The spring washer 79 however, is located between the screw head 77 the bearing screw 71 and the bearing disc 75 , By appropriate adjustment of the self-locking retaining nuts 46 and 76 can be the contact pressure of each associated clutch housing 35 and 36 respectively. 65 and 66 set, so that on the one hand achievable by frictional position assurance of this clutch housing 35 and 36 respectively. 65 and 66 can be reached and on the other hand their rotation is guaranteed against each other.

6 shows a vertical section through the guide slide 8th with its three guide rollers 9 . 10 and 11 as well as the support tube 2 together with the cladding tube 96 and the guide bar arranged therein 7 , The guide slide 8th has three guide rollers 9 . 10 . 11 on, two of which 9 and 11 on one side, preferably on the guide rod 7 facing side of the support tube 2 vertically spaced from each other and the third guide roller 10 on the opposite side of the support tube 2 vertically between the other two guide rollers 9 and 11 are arranged.

The guide slide 8th is about his leadership roles 9 . 10 and 11 in the direction of the double arrow 12 axially along the support tube 2 adjustable and by the triangular arrangement of the guide rollers 9 to 11 Non-tilting precise on the support tube 2 adjustable guided. The leadership roles 9 to 11 have a cylindrical cross-section of the support tube 2 corresponding negative profile on.

7 is a horizontal section VII-VII off 6 through the guide slide 8th and shows that this guide slider 8th two plate-shaped side walls 110 and 111 having, over several mounting or bearing screws 112 . 113 . 114 such as 115 ( 6 ) are interconnected. The bearing screw 114 forms the joint bearing 24 both the guide rod 7 as well as the cladding tube 96 ,

In the area of each of the bearing screws 112 to 115 is in each case a bearing bush 116 . 117 . 118 such as 119 intended. Through these bushings 116 to 119 becomes the distance of the sidewalls 110 and 111 set, so that on the one hand the leadership roles 9 . 10 and 11 between the side walls 110 and 111 are freely rotatable and on the other hand, the guide rod 7 with its cladding tube 96 to the storage 24 the bearing screw 114 is rotatable. To secure the bearing screws 112 to 115 is in each case a corresponding holding nut 120 . 121 and 122 provided, which are preferably designed as self-locking nuts. The retaining nut of the bearing screw 115 is not shown in the drawing.

The guide slide 8th is precise on the support tube 2 guided. It can also be seen that the connection cable 30 within the support tube 2 runs.

Claims (18)

Contraption ( 1 ) for holding and supplying suction electrodes ( 21 ) an ECG system and / or an Ergometriemessplatzes, consisting of a vertical support tube ( 2 ) and a multi-part, pipe sections having boom ( 22 ), which via a first capsular joint ( 3 ) at the upper end of the vertical support tube ( 2 ) is pivotally mounted, and at the first capsular joint ( 3 ) end facing away with the suction electrodes ( 21 ) provided distributor head ( 20 ), wherein the distributor head ( 20 ) over the pipe sections and the vertical support tube ( 2 ) with a pressure or suction air source ( 31 ) and by a multi-core, through the pipe sections and the support tube ( 2 ) led electrical connection cable ( 30 ) with an electrocardiograph ( 32 ) and wherein at the distributor head ( 20 ) the electrical and pneumatic supply lines of the individual suction electrodes ( 21 ) are connected, characterized in that the pipe pieces of the boom ( 22 ) a guide tube ( 4 ) and a boom tube ( 6 ) and that the boom ( 22 ) with its guide tube ( 4 ) with the support tube ( 2 ) over the first capsular joint ( 3 ) is pivotally connected and that the boom tube ( 6 ) via a second capsular joint ( 5 ) pivotable with the guide tube ( 4 ) and the distributor head ( 20 ) at a second capsule joint ( 5 ) opposite end of the boom tube ( 6 ) and that the boom tube ( 6 ) with a guide rod ( 7 ) is rigidly connected, which with a movable on the support tube ( 2 ) guided guide slide ( 8th ) and that the boom tube ( 6 ) from a horizontal position of use together with the guide rod ( 7 ) under execution of a pivoting movement ( 23 ) can be brought into a rest position and that the guide slide ( 8th ) during pivoting of the boom tube ( 6 ) at the same time a downward movement ( 28 ) along the support tube ( 2 ) and that the capsule joints ( 3 . 5 ) for securing the position of adjusted pivoting positions of the boom tube ( 6 ) are self-locking. Apparatus according to claim 1, characterized in that the support tube ( 2 ), the guide tube ( 4 ) and the boom tube ( 6 ) together with the Capsule joints ( 3 . 5 ) an air-tight compressed air line to the distributor head ( 20 ) form. Device according to claim 2, characterized in that the guide rod ( 7 ) on the second capsular joint ( 5 ) and coaxial with the boom tube ( 6 ) is arranged diametrically opposite this. Device according to claim 1, characterized in that the guide tube ( 4 ) is shorter than the boom tube ( 6 ). Device according to one of claims 1 to 4, characterized in that the support tube ( 2 ) together with the guide tube ( 4 ) and the guide rod ( 7 ) form a joint triangle. Apparatus according to claim 1, characterized in that the guide slide ( 8th ) between two interconnected congruent side walls ( 110 . 111 ) three guide rollers ( 9 . 10 . 11 ) having. Apparatus according to claim 6, characterized in that two of the guide rollers ( 9 . 11 ) on the guide rod ( 7 ) facing side of the support tube ( 2 ), at a vertical distance from each other and the third guide roller ( 10 ) on the opposite side vertically between the other two guide rollers ( 9 . 11 ) are arranged. Apparatus according to claim 6 or 7, characterized in that the guide rollers ( 9 . 10 . 11 ) one of the rounding of the support tube ( 2 ) have corresponding negative profile. Device according to claim 3, characterized in that the guide rod ( 7 ) with the with the boom tube ( 6 ) associated capsular joint ( 5 ) airtight screwed and from a cladding ( 96 ), which, like the guide rod ( 7 ) itself, with a common storage ( 24 ) on the guide slide ( 8th ) is articulated. Device according to one of claims 1 to 8, characterized in that the boom tube ( 6 ) from its horizontal position of use, in which the guide slide ( 8th ) is in its uppermost position, is adjustable in its rest position, in which the guide slide ( 8th ) in its lowest position on the support tube ( 2 ) is located. Apparatus according to claim 9, characterized in that the portion of the support tube ( 2 ) on which the guide slide ( 8th ) is displaceable between its uppermost and lowest position, at least by the structural height (h) of the guide slide ( 8th ) is greater than its movement distance and that the support tube ( 2 ) the guide slide ( 8th ) In its uppermost position of use surmounted above. Device according to one of claims 1 to 6 or 9, characterized in that each of the capsule joints ( 3 . 5 ) of two by a central link ( 41 . 71 ) rotatably interconnected, pot-like, each with a radial pipe socket ( 54 . 55 . 84 . 85 ) provided coupling housings ( 35 . 36 . 65 . 66 ), which with opposing flat, sealed against each other end face surfaces ( 50 . 51 . 80 . 81 ) of its outer cylinder walls ( 37 . 38 . 67 . 68 ) are provided and the respective central, mutually coaxial, also mutually sealed bearing hubs ( 39 . 40 . 69 . 70 ), in which the connecting member ( 41 . 71 ) is stored. Apparatus according to claim 12, characterized in that the two coupling housing ( 35 . 36 respectively. 65 . 66 ) of the respective capsule joint ( 3 respectively. 5 ) each by means of a in the hubs ( 39 . 40 respectively. 69 . 70 ) mounted bearing screw ( 41 respectively. 71 ) and an outside on the end face of the clutch housing ( 35 . 36 respectively. 65 . 66 ), self-locking retaining nut ( 46 . 76 ) are interconnected. Device according to claim 13, characterized in that on the side of the retaining nut ( 46 respectively. 76 ) and / or the screw head ( 47 respectively. 77 ) of the associated bearing screw ( 41 respectively. 71 ) a spring washer ( 48 . 49 respectively. 78 . 79 ) is highlighted. Apparatus according to claim 12, 13 or 14, characterized in that the end ring surfaces ( 50 . 51 respectively. 80 . 81 ) of the cylinder walls ( 37 . 38 respectively. 67 . 68 ) by means of a clamped, elastic sealing ring ( 101 respectively. 102 ) are sealed against each other. Apparatus according to claim 12, 13 or 14, characterized in that the two bearing hubs ( 39 . 40 respectively. 69 . 70 ) by an elastic sealing tube ( 58 . 88 ) are sealed against each other, the the peripheral surfaces of the two Lagerernaben ( 39 . 40 respectively. 69 . 70 ) encloses sealingly. Apparatus according to claim 12, characterized in that the ends of the support tube ( 2 ), of the guide tube ( 4 ) and the boom tube ( 6 ) each in a pipe socket ( 54 . 55 respectively. 84 . 85 ) of a cup-shaped coupling housing ( 35 . 36 respectively. 65 . 66 ) are inserted and airtight connected to this firmly. Apparatus according to claim 17, characterized in that the ends of the support tube ( 2 ), of the guide tube ( 4 ) and the boom tube ( 6 ) with the Coupling housing ( 35 . 36 respectively. 65 . 66 ) are glued, welded or screwed.

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