Emptying Device, Assembly and Method for Emptying Suction Bag

Abstract

The invention relates to a suction bag emptying device (20) comprising a container (19) for receiving a suction bag (3), the container (19) having a discharge point for discharging the contents of the suction bag. The emptying device (20) comprises means for puncturing a bag portion without making contact with the bag. The invention further relates to an assembly comprising at least one suction bag (3) and a suction bag emptying device (20), and to a method for emptying a suction bag (3).

Claims

1. A suction bag emptying device comprising: a container for receiving a suction bag, the container includes a discharge point for discharging the contents of the suction bag, wherein the emptying device includes a bag puncturing device adapted to puncture a bag without making contact with the bag.

2. An emptying device as claimed in claim 1, wherein the emptying device includes a jacket for supporting the suction bag laterally.

3. An emptying device as claimed in claim, wherein the bag puncturing device includes an arrangement for conveying negative pressure into the emptying device.

4. An emptying device as claimed in claim 1, wherein the bag puncturing device includes an electric resistance.

5. An emptying device as claimed in claim 1, wherein the bag puncturing device includes a device that is adapted to cut without contact.

6. An emptying device as claimed in claim 1, wherein the emptying device has one position for a suction bag to be emptied.

7. An emptying device as claimed in claim 1, wherein the emptying device has a plurality of positions for suction bags to be emptied.

8. An assembly comprising: a suction bag and a suction bag emptying device, wherein the suction bag includes a lid and a bag portion fixedly fastened to the lid, and wherein the suction bag emptying device includes a container having a discharge point for discharging the contents of the suction bag, and a bag puncturing device adapted to puncture a bag without making contact with the bag.

9. An assembly as claimed in claim 8, wherein the emptying device has one position for a suction bag to be emptied.

10. An emptying device as claimed in claim 8, wherein the emptying device has a plurality of positions for suction bags to be emptied.

11. A method for emptying a suction bag comprising: selecting an emptying device including a container having a discharge point for discharging the contents of the suction bag, placing the suction bag containing fluid in the container, starting a bag puncturing device without making contact with the bag, and removing the empty suction bag from the emptying device.

12. A method as claimed in claim 11, wherein the emptying device includes a plurality of positions for the suction bags, and further comprising placing a plurality of suction bags in the emptying device, and starting the bag puncturing device without making contact with the bag.

13. A method as claimed in claim 11, wherein the emptying device includes a plurality of positions for the suction bags, and further comprising repeating the following procedure at each position: Placing in the emptying device a suction bag at a time such that the suction bag is placed in the emptying device, and starting the bag puncturing device without making contact with the bag.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0031] The invention is now described in closer detail in connection with preferred embodiments and with reference to the accompanying drawings, in which:

[0032] FIG. 1 is a side view showing a suction bag arrangement;

[0033] FIG. 2 is a top view showing the suction bag arrangement according to FIG. 1;

[0034] FIGS. 3a, 3b, 4a and 4b are cross sections of an emptying device according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

[0035] FIGS. 1 and 2 describe first the structure and operation of a suction bag 3. The suction bag according to FIGS. 1 and 2 is an example of a suction bag suitable to be emptied by an emptying device according to the invention.

[0036] According to what is shown in FIG. 1, the suction bag arrangement comprises a collection reservoir 1 whose one end is open, a suction bag 3 arrangeable in the collection reservoir 1 and comprising a flexible bag portion fixedly fastened to a lid 4. The collection reservoir 1 is provided with a fitting 2, which has a flow connection to a source of negative pressure, and a channel 10 for generating a negative pressure in a region 11 between the inner surface of the collection reservoir 1 and the outer surface of the suction bag 3. The lid 4 is provided with a patient fitting 5 for coupling a patient hose to an inner part of the suction bag 3, and the lid 4 has a channel 7 for transmitting negative pressure from a space between the inner surface of the collection reservoir 1 and the lid 4 to the inner part of the suction bag 3, and a filter 6 for preventing impurities from entering the suction system. The filter 6 is fastened to an inner surface side of lid of the suction bag 3, and the lid 4 is a uniform piece.

[0037] FIG. 2 is a top view showing the suction bag arrangement. In addition to the parts described in FIG. 1, FIG. 2 shows a plug 8 integrated in the lid 4 to enable the patient fitting 5 to be closed after use, and a connector 9 to be used for connecting the suction bag arrangements in series as well as for sampling and for manual emptying. The connector 9 may also be used for dispensing a solidifying agent.

[0038] FIGS. 3a, 3b, 4a and 4b show an emptying device 20 whose container 19 is provided with a suction bag 3 suspended from rims 23 of its lid 4. Preferably but not, however, necessarily, a jacket 12 of the emptying device 20 resides close to a surface of a bag portion of the suction bag 3. The emptying device 20 also includes an intermediate container 13. A valve 16 is provided between the intermediate container 13 and the container 19. The intermediate container 13 has a channel 15 for conveying negative pressure into the intermediate container 13, and a channel 14 for discharging the contents of the suction bag. The channel 15 is provided with a valve 17 while the channel 14 is provided with a valve 18.

[0039] FIG. 3a shows an initial situation of emptying of the suction bag 3. The valve 18 is closed and the valve 17 is opened for conveying negative pressure first to the intermediate container 13 and, after opening the valve 16, to the container 19. The lid 4 closes the mouth of the container 19 so that in the container 19 a negative pressure suction is formed which starts stretching the bottom of the suction bag 3 such that eventually the bottom is ruptured and the contents of the suction bag 3 flow into the intermediate container 13. FIG. 3b shows a situation wherein the suction bag 3 has already ruptured. The valves 16 and 17 are closed and the valve 18 is opened, enabling the contents of the suction bag to be discharged from the intermediate container 13 along the channel 14. It is also possible that the container 19, the intermediate container 13, the suction bag 3 and the contents of the suction bag are disinfected by steam supplied through the valves 17 and 16. The intermediate container 13 may also be a steam generator for carrying out the aforementioned procedure.

[0040] FIG. 4a shows a situation before the suction bag 3 is ruptured while FIG. 4b shows a situation after the suction bag 3 has ruptured. A difference between the situation shown in FIGS. 4a and 4b and that in FIG. 3a and 3b is that through the lid 4 of the suction bag 3 is pressed a hollow cone 21 provided with at least one opening 22 through which liquid or gas flows into the suction bag 3 for rinsing and/or disinfecting the suction bag. The cone 21 is in connection with a source of liquid or gas, and it may be, but is not necessarily, fastened to the lid possibly provided in the emptying device 20.

[0041] It is apparent to one skilled in the art that as technology advances, the basic idea of the invention may be implemented in many different ways. The invention and its embodiments are thus not restricted to the above-described examples but may vary within the scope of the claims.