DE202008005025U1 - Fastening device for a drainage container - Google Patents

Abstract

fastening device for securing a drainage container for collection of a sucked body fluid to an external Carrier, in particular to a rail, wherein the fastening device (3) detachably connectable to the drainage container is, characterized in that the fastening device (3) a first negative pressure port (311) for connection to a Suction source, a second vacuum port (321) for pluggable, tubeless and tight connection with the drainage tank and one connecting these two vacuum ports (311, 321), within the fixture extending vacuum channel (310) has, so that generates a negative pressure in the drainage tank can be.

Description

Technical area

The The invention relates to a fastening device, a drainage container and a drainage system according to the preamble of the protection claim 1, 9 and 13 respectively.

State of the art

drainage container are collection containers for body fluids, which are incurred during aspiration in the context of medical treatments. The body fluid is pumped by a vacuum pump patient-side drainage line led into the container. The container has for this purpose a connection for the patient side drainage line and a connection for the suction or vacuum pump or for the central vacuum.

There are drainage containers are known which have a rigid outer container, a lid closing this with the above-mentioned connections and a lid attachable or attached drainage or collection bag. The outer container is reusable. The drainage bag is used once and then disposed of professionally or washed in advance and then disposed of. Such a drainage container is made, for example EP 0'861'668 known. Other drainage tanks are in WO 2001/024846 . US 3'680'560 . WO 94/14045 and US 5,470,324 described.

It it is known to hang drainage containers on a rail which is either attached to the bed itself, to a mobile Frame is arranged or extends to an adjacent wall thereto. As fastening devices for drainage tank leave For example, use intermediate pieces, in particular mounting brackets, which pinch the rail. Because the rails usually a standard size, can be the same Size of cradles in different hospitals use. The drainage container is doing in the mounting bracket hooked. The mounting bracket ensures thus, during drainage, a secure mounting of the container.

WO 2007/085100 shows such a mounting bracket, which is additionally provided on the container side with a snap lock.

US 3,915,189 further discloses a bagless rigid drainage container having a web projecting the container wall. At this web a curved tongue is arranged, which is inserted into a correspondingly shaped receptacle to secure the container to a wall. The web and the tongue each have an aligned recess, through which a pump-side connecting piece can be inserted. From the lower end of the connecting piece, an external hose leads to the lid of the container, where the hose is plugged into a suction connection piece of the lid.

Of the Vacuum connection for generating the negative pressure in the container in the prior art is either on the rigid outer container or arranged on the lid and is connected to the suction source, for. B. a suction pump or a central vacuum system, connected by a more flexible Connecting hose is attached to him.

The Attaching this hose is time consuming and needed also skill. If the hose is not attached sealingly, so can the vacuum in the container is not generated and the suction power is insufficient. In addition, there is a risk that the hose during aspiration solves, for example, through awkward handling by a person in their vicinity.

Becomes the container is washed, so the hose must be removed. This too takes time.

Presentation of the invention

It is therefore an object of the invention to provide a device which the creation and interruption of the vacuum connection between drainage tank and suction source simplified and increased safety.

These Task solve a fastening device for attachment a drainage container for collection of an aspirated Body fluid to an external carrier, in particular to a rail, a drainage tank and a drainage system with the features of the protection claim 1, 9 and 13, respectively.

The inventive fastening device is solvable connectable to the drainage container, wherein the fastening device a first vacuum port for connection to a suction source, a second vacuum connection to the pluggable, tubeless and tight connection with the drainage container and a connecting these two vacuum connections, within the fastening device extending channel, so that a negative pressure in the drainage tank can be generated.

As a result, no hoses need to be attached directly to the drainage container, be it on the rigid outer container or on the lid, in order to establish a connection to the suction source. The Connection according to the invention is pluggable via the fastening device which secures the container to the external support.

In a simple embodiment, the drainage tank a rigid collection container and a tightly sealed Cover open. The extracted body fluid is collected directly in the collection container, d. H. without use a flexible suction bag.

Preferably the drainage container has a rigid outer container and a lid, with a drainage bag attached to the lid and wherein the drainage tank is a vacuum port for Connection with a suction source and a connection clip to the connection having a patient-side drainage tube. The pluggable connection for fastening device is preferably carried out over the Outer container. But you can alternatively or additionally also done with the lid.

Preferably the fastening device has a spring-loaded clamping part for attachment to the external support.

has the fastening device has a lower support surface, Thus, the drainage container, in particular the outer container, be placed on him and held by it. Other types of Attachment of the drainage tank to the fastening device are possible, however. The container may, for example free hanging on the fixing device, be held by a plug connection or by means of a groove / sliding block connection be fixed.

Preferably is the vacuum connection when removing the drainage tank automatically lockable. This creates suction-source side removal the container of the fastening device no or hardly a pressure drop. Disturbing air noise will be avoided.

Preferably has the fastening device additionally over a vacuum control. This eliminates the need attaching a separate vacuum regulator near the drainage tank or the possibly long way to the suction pump does not have to be covered become.

The inventive fastening device can with a or more bacteria and / or odor filters, to avoid suction-source-side contamination of the suction lines.

Preferably is the second vacuum port on top or side Face and the first vacuum connection to a lower or lateral face. This requires the suction ports little space and facilitate the corresponding Links. In particular, the first vacuum connection can along a rail to which the fastening device attachable is, be guided.

has the fastening device a plane contact surface for Concerning a flat surface of the drainage container, especially the outer container, on, so is the dense Connection better ensured and relative movements between Container and fastening device are minimized.

Of the Drainage container according to the invention for collection an aspirated liquid, has a rigid collection container and a lid for tightly closing the collecting container wherein the drainage container further comprises a vacuum port for connection to a suction source and to achieve a negative pressure having in the outer container and wherein the drainage container a patient hose connection for connection with one to a Patient has leading patient tube, so that a connection to a patient-side source of fluid arises to the inside of the collection container. The vacuum connection is according to the plug-in, tubeless connection formed with a fastening device. The liquid can be collected directly in the collection container or this can be designed as a rigid outer container, wherein a flexible suction bag for holding the liquid in it can be arranged.

Preferably the drainage container has a protruding flange, in which the vacuum connection is arranged. This vacuum connection can be arranged in particular on the underside of the flange.

In a preferred embodiment, the outer container a round substantially cross-section, wherein it is on the periphery preferably a flat surface, which as a contact surface for attachment to the fastening device is used. This will be Relative movements between container and fastening device minimizes and the tightness of the suction connection between these two Parts guaranteed.

Further advantageous embodiments are dependent Protection claims out.

Brief description of the drawings

In the following the subject invention based on preferred embodiments, which Darge in the accompanying drawings are explained. Show it:

1 a perspective view of a drainage tank with a fastening device according to the invention;

2 according to the drainage container 1 with loose fastening device;

3 an exploded view of the fastening device according to 2 ;

4 a longitudinal section through the fastening device according to 2 with closed vacuum connection opening;

5 a longitudinal section through the drainage tank with attached fastening device and with open vacuum port;

6 an enlarged section of the 5 ;

7 a longitudinal section through a second embodiment of a fastening device with a closed vacuum port;

8th a longitudinal section through the drainage container with attached fastening device according to 7 and with opened vacuum connection opening;

9 an enlarged section of the 8th ;

10 a perspective view of a drainage container with an inventive fastening device in a third embodiment;

11 an exploded view of the fastening device according to 10 ;

12 a longitudinal section through the fastening device according to 11 with closed vacuum connection opening and

13 a longitudinal section through the drainage container with attached fastening device according to 11 and with opened vacuum connection opening.

Ways to execute the invention

In the 1 and 2 a drainage system according to the invention with drainage container and fastening device is shown.

The drainage container has a rigid, preferably transparent collecting or outer container and a closure lid 2 on. Both parts are preferably made of plastic. The collecting container preferably has a round cross-section, wherein it may be conical, cylindrical or another shape suitable for collecting the liquid.

On the closure lid 2 an unillustrated flexible bag is preferably attached, in particular welded. Alternatively, the flexible bag can also be retrofitted on the closure lid 2 be fastened, with an air and liquid-tight connection is to create. The bag protrudes from the cap 2 in the interior of the collection or outer container 1 and is completely absorbed by this.

The cap 2 can be by means of fastening means, in particular brackets, on the outer container 1 mount sealing and detachable. However, he can also simply by its own weight on the edge of the outer container 1 rest and seal the outer container tightly.

The cap 2 has a patient-side connector 20 on which a flexible hose can be mounted and guided into that cavity of the patient from which liquid or body fat is to be extracted.

The lid 2 can parking positions 21 . 22 having closures, by means of which the connecting piece 20 and a vacuum port opening described below 321 can be closed.

such Drainage container with rigid outer container, closure lid and bags are well known in the art. Examples of these were mentioned at the beginning. The drainage tank is via a vacuum connection with a suction source, for example connected to a vacuum pump or a central vacuum system is the negative pressure in the interior of the outer container between its wall and the flexible bag generated. Furthermore, will creates a negative pressure in the bag, so that the patient fluid on the Patient-side suction line and the patient-side connecting piece gets into the bag. Check valves and bacterial and / or odor filters usually prevent contamination of the Environment or a return transport of the liquid into the cavity.

Only one vacuum connection can be used, as for example in WO 01/24846 is shown. There may also be a plurality of vacuum connections, which are connected to each other for example by hose connections.

The outer container 1 is usually reusable and can be washed. The lid 2 with the bag attached to it is a disposable product, which must be disposed of properly after first use.

This drainage container can now be by means of a fastening device 3 releasably attach to a rail or other external support.

The fastening device 3 according to the examples shown here comprises a clamp with a fixed claw 33 and a relatively movable claw 35 which is spring loaded. The movement of the movable claw 35 can be by means of a push button 34 carry out. Also, such mounting brackets are known from the prior art.

Instead of Such a spring-loaded clamping part can be Also another known means for fastening the fastening device a rail or other external carrier, e.g. B. on a wall panel.

At this means, here the clip closes the means for releasably securing the drainage container to the fastener 3 at. In this case, here is the outer container 1 with the fastener 3 connected. However, it is also possible that alternatively or additionally the closure lid 2 with the fastener 3 connected is.

The means for releasably securing the drainage container has a base body 31 on. This preferably has a drainage container directed towards flat contact surface 30 on, which preferably over the entire width and height of the body 31 extends.

Preferably, the otherwise cylindrical-shaped rigid outer container 1 a jacket which deviates on one side from the cylindrical shape and also a plane bearing surface 11 forms. Preferably, this plane contact surface extends 11 of the outer container 1 but not over its entire height. Although it extends down to the ground 14 out. Above, however, it ends in a protruding flange 12 which by the cylindrical in this upper region and formed with a round cross-section outer container 1 is formed. The flange has a recessed dent 13 or a projecting centering lug provided on the attachment means 3 finds a counterpart and so facilitates the mutual positioning.

The main body 31 of the fastener 3 goes into a hanger at its lower end 36 over, which to the outer container 1 bent down and a lower support surface 360 forms. On this support surface 360 lies the fortified outer container 1 on. Here is the common length of the body 31 and the temple 36 so dimensioned that in the assembled state the top 32 of the basic body 1 at the bottom of the flange 12 is applied. This is in 1 shown.

In 2 is recognizable that the top of the main body 31 having an opening and that at the bottom of the base body, a suction hose 4 protrudes laterally.

This is better in the 3 and 4 recognizable. The top of the main body 31 is through an inserted lid 32 educated. This lid 32 is preferably with the rest of the body 31 by means of screws 320 screwed.

In the lid 32 there is a vacuum connection opening 321 , which with one inside the main body 31 extending vacuum channel 310 communicated. The vacuum channel 310 runs in the assembled state of the fastening device preferably in the vertical direction and rectilinear within the body 31 ,

At the far end of the base body 31 is a vacuum connection piece 311 molded or inserted as shown here. This vacuum connection piece 311 is preferably formed bent at right angles, so that the plugged or inserted suction hose 4 at right angles to the vacuum channel 310 and preferably leads away parallel to the external rail. This suction hose 4 can be connected to the external suction source.

The lid 32 also has a slot 322 on. In this slot is a slider 37 held displaceable in the vertical direction. The slider 37 has at its lower end an inclined surface, the bottom corner of which by the vacuum channel 310 most distant corner is formed.

In the transition area from the lid 32 to remaining body 31 is a closure plate 38 with a through hole and one on the closure plate 38 acting horizontally extending return spring 39 arranged.

If no drainage container is mounted on the fastening device, the return spring presses 39 the closure plate 38 to the slider 37 out. This is the top of the body 31 or the lid 32 in front. The connection between vacuum lock opening 321 and vacuum channel 310 is closed. This means that even with a vacuum applied no sucking sounds are heard and Suction source side no pressure drop takes place.

Now, how is this in 5 it can be seen, the fastening device attached to the drainage tank, so presses the bottom of the flange 12 on the slide 37 , This moves thanks to its inclined surface, the closure plate 38 against the force of the return spring 39 in the horizontal direction until, thanks to its passage opening, the connection between the vacuum connection opening 321 and vacuum channel 310 releases.

As in 5 is recognizable, is on the outer container 1 on the bottom of the flanges 12 an opening exists, which leads to the interior of the outer container 1 and optionally also directly or via a connecting channel in the closure cap 2 leads to the bag interior. As a result, a continuous vacuum or suction line between external suction source and drainage container is now created. This connection is tubeless on the tank side and takes place via a pure plug connection between the container and the fastening device.

For this purpose, the outer container 1 on the bottom 120 of the footbridge 12 a molded connection piece 121 which is in the vacuum connection opening 321 the fastening device 3 intervenes. Of course, the Befestigungsvorrich device have the nozzle and the container only a hole to its inclusion. Other known types of pluggable connections are possible.

In the example shown here is the vacuum connection opening 312 conical with itself to the vacuum channel 310 shown tapering diameter. This is especially in 6 good to see. The connection piece 121 is conically shaped. As a result, a slightly resilient and therefore tight connection between the two parts can be achieved without the need for additional sealing rings.

Like also in 5 can be seen, the closure lid 2 a parallel to the outer deep-drawn edge 23 running circumferential rib 24 on. When placing the cap 2 embrace the edge 23 and the rib 24 the edge 15 of the outer container 1 and form a tight connection with or without sealing rings.

If the drainage tank without collecting bag used, ie the rigid outer container 1 serves as a rigid collection container, in which the extracted liquid is collected directly, so can the lid towards the upwardly projecting part of the connecting piece 121 with a check valve or a hydrophobic filter. The pimples 122 serve to tight connection with the valve or filter.

In the 7 to 9 a second embodiment is shown. The associated drainage tank corresponds to that of the first example and will not be explained in more detail here. Also the fastening device 3 is substantially the same as in the first example, except that the vacuum port 321 not conical, but circular cylindrical is formed. The connection piece 121 is also circular cylindrical. To ensure the tightness is therefore a sealing ring 123 present, which preferably in a circumferential groove of the connecting piece 121 is held.

In the 10 to 13 a third embodiment is shown or it is ge shows that the above examples can be provided with a vacuum control. Again, the drainage container is the same design and has in particular at the bottom of the flange, the connection opening for creating the vacuum connection.

Also the fastening device 3 is substantially the same design as those according to the first and second embodiments, ie with a straight or conical opening. In addition, however, this fastening device now has a vacuum control. This includes a pressure gauge, in particular a pressure gauge 5 and a set screw 6 , As in 12 is recognizable, are in the main body 31 a first and a second transverse bore 312 . 313 present, which at least from the outside to the vacuum channel 310 pass. In the first transverse bore 312 is the set screw 6 held manually or automatically displaceable, depending on the horizontal displacement position the vacuum channel 310 releases more or less.

In the second transverse bore 313 is the pressure gauge 5 introduced the pressure in the vacuum channel 310 to determine. As is the second transverse bore 313 above the first transverse bore 312 is located, measures the pressure gauge 5 the pressure in the area or below the vacuum connection opening, ie container side and not suction source side.

The fastening devices described above can be additionally provided with bacteria and / or odor filters. These can be in the vacuum channel 310 , in vacuum connection socket 311 or at another suitable location.

Since the inventive fastening device is provided with a vacuum connection, it allows a simple tubeless and yet tight connection with the drainage tank. The attachment and removal of the drainage container is thereby simplified.

1

outer container

10

coat

11

plans contact surface

12

flange

120

bottom

121

container side connecting pieces

122

burl

123

seal

13

dent

14

ground

15

edge

2

cap

20

patient-sided spigot

21

first Parking position for cap

22

second Parking position for cap

23

first circumferential rib

24

second circumferential rib

3

fastening device

30

plans Anligefläche

31

body

310

vacuum channel

311

Vacuum connection piece

312

first cross hole

313

second cross hole

32

cover

320

mounting screws

321

Vacuum port opening

322

slot

33

firm claw

34

push-button

35

movable claw

36

hanger

360

bearing surface

37

pusher

38

closing plate

39

Return spring

4

suction

5

manometer

6

screw

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 0861668 [0003]
• WO 2001/024846 [0003]
• - US 3680560 [0003]
• - WO 94/14045 [0003]
• US 5470324 [0003]
• - WO 2007/085100 [0005]
• US 3915189 [0006]
• WO 01/24846 [0048]

Claims (13)

Fastening device for fastening a drainage container for collecting an extracted body fluid to an external support, in particular to a rail, wherein the fastening device ( 3 ) is detachably connectable to the drainage container, characterized in that the fastening device ( 3 ) a first vacuum port ( 311 ) for connection to a suction source, a second vacuum connection ( 321 ) for pluggable, tubeless and sealed connection with the drainage container and one of these two vacuum connections ( 311 . 321 ), running within the fastening device vacuum channel ( 310 ), so that a negative pressure in the drainage container can be generated. Fastening device according to claim 1, wherein it has a spring-loaded clamping part ( 33 . 34 . 35 ) for attachment to the external support. Fastening device according to one of claims 1 or 2, wherein it has a lower bearing surface ( 360 ) to rest the drainage tank. Fastening device according to one of claims 1 to 3, wherein the vacuum channel ( 310 ) is automatically closed upon removal of the drainage tank. Fastening device according to one of claims 1 to 4, wherein it has a vacuum control ( 5 . 6 ) having. Fastening device according to one of the claims 1 to 5, wherein it has a bacterial and / or odor filter. Fastening device according to one of claims 1 to 6, wherein the second vacuum connection ( 321 ) on an upper or lateral end face and the first vacuum connection ( 311 ) are arranged on a lower or lateral end face of the fastening device. Fastening device according to one of claims 1 to 7, wherein it has a plane Anligefläche ( 31 ) for abutment of a flat surface of the drainage container. Drainage container for collecting an aspirated liquid, wherein the drainage container is a rigid collecting container ( 1 ) and a lid ( 2 ) for closing the collecting container ( 1 ), wherein the drainage container further comprises a vacuum port ( 121 ) for connection to a suction source and to achieve a negative pressure in the outer container ( 1 ) and wherein the drainage container has a patient hose connection ( 20 ) for connection to a patient tube leading to a patient, such that a connection to a patient-side source of the liquid to the inside of the collecting container ( 1 ), characterized in that the vacuum connection ( 121 ) for pluggable, tubeless connection with a fastening device ( 3 ) is trained. Drainage container according to claim 9, wherein the drainage container has a projecting flange ( 12 ), in which the vacuum connection ( 121 ) is arranged. Drainage container according to claim 10, wherein the vacuum connection ( 121 ) on the bottom ( 120 ) of the flange ( 12 ) is arranged. Drainage container according to one of claims 9 to 11, wherein the collecting container ( 1 ) has a substantially round cross-section, wherein it has a flat surface ( 11 ), which as a contact surface for engagement with the fastening device ( 3 ) serves. Drainage system with a drainage container according one of claims 9 to 12 and a fastening device according to one of claims 1 to 8.