System for drainage of fluids or wound secretion

Abstract

The invention relates to a system for drainage of fluids or wound secretion from body and/or tissue openings of the human or animal body comprising a bag-like reservoir for collecting the fluid or wound secretion, with an upper inlet opening and a lower outlet opening, and a pre-evacuated container with an inlet opening, wherein the inlet opening of the pre-evacuated container is connected to the lower outlet opening of the bag-shaped reservoir.

Claims

1. A system for drainage of fluid secretion from a body and/or a tissue opening of a human or animal body comprising: a bag reservoir to collect the fluid secretion, wherein the bag reservoir has an upper inlet opening and a lower outlet opening, a pre-evacuated container having an inlet opening, wherein the inlet opening of the pre- evacuated container is connected to the lower outlet opening of the bag reservoir, wherein, during an operation of the system, the bag reservoir and the pre-evacuated container are arranged in fluid communication such that drainage is performed in a presence of suction provided by a vacuum of the pre-evacuated container over the bag reservoir, wherein the pre-evacuated container is disconnectable from the lower outlet opening of the bag reservoir during the drainage, wherein the pre-evacuated container is pre-evacuated prior to being connected to the lower outlet opening of the bag reservoir, wherein the lower outlet opening of the bag reservoir is sealable by a sealing device, and wherein, when the lower outlet opening of the bag reservoir is sealed by the sealing device, the fluid secretion in the bag reservoir cannot exit from the lower outlet opening.

2. The system according to claim 1, wherein the bag reservoir is made of a flexible material.

3. The system according to claim 2, wherein the bag reservoir is made of plastic.

4. The system according to claim 1, wherein, during the operation of the system, the bag reservoir and pre-evacuated container are arranged in fluid communication such that the drainage is initiatable or achievable by the suction provided by the vacuum of the pre-evacuated container over the bag reservoir.

5. The system according to claim 1, wherein a surface of an inner wall of the bag reservoir is profiled.

6. The system according to claim 1, wherein the bag reservoir has a capacity in a range of about 500 ml to about 5000 ml.

7. The system according to claim 1, wherein a tubular outlet is located at the lower outlet opening of the bag reservoir.

8. The system according to claim 7, wherein the lower outlet opening and the tubular outlet are built integrally.

9. The system according to claim 1, wherein the sealing device is a clamp device.

10. The system according to claim 7, wherein the lower outlet opening and/or the tubular outlet of the bag reservoir are clampable by a clamp device.

11. The system according to claim 10, wherein the clamp device comprises a slide clamp.

12. The system according to claim 7, wherein the lower outlet opening and/or the tubular outlet of the bag reservoir includes a vent to seal the lower outlet opening and/or the tubular outlet.

13. The system according to claim 12, wherein the vent comprises a check valve.

14. The system according to claim 1, wherein a drainage line is located at the upper inlet opening of the bag reservoir for connecting to the body and/or tissue opening of the human or animal body.

15. The system according to claim 1, wherein the bag reservoir and the pre-evacuated container are pre-connected.

16. The system according to claim 1, wherein the upper inlet opening of the bag reservoir has a backflow protection, such that the fluid secretion in the bag reservoir cannot exit from the upper inlet opening of the bag reservoir.

17. The system according to claim 1, wherein the bag reservoir and/or the pre-evacuated container have a holder for hanging and/or mounting.

18. A method for drainage of fluid secretion from a body and/or a tissue opening of a human or animal body, comprising: obtaining a system for drainage of the fluid secretion from a body and/or a tissue opening of a human or animal body comprising a bag reservoir to collect the fluid secretion, wherein the bag reservoir has an upper inlet opening and a lower outlet opening, a pre-evacuated container having an inlet opening, wherein the inlet opening of the pre-evacuated container is connected to the lower outlet opening of the bag reservoir, wherein, during an operation of the system, the bag reservoir and the pre-evacuated container are arranged in fluid communication such that drainage is performed in a presence of suction provided by a vacuum of the pre-evacuated container over the bag reservoir, wherein the pre-evacuated container is disconnectable from the lower outlet opening of the bag reservoir during the drainage, wherein the pre-evacuated container is pre-evacuated prior to being connected to the lower outlet opening of the bag reservoir, wherein the lower outlet opening of the bag reservoir is sealable by a sealing device, and wherein, when the lower outlet opening of the bag reservoir is sealed by the sealing device, the fluid secretion in the bag reservoir cannot exit from the lower outlet opening, providing an initial suction at the body and/or the tissue opening of the human or the animal body using the pre-evacuated container, wherein the initial suction of the pre-evacuated container is transferred over the bag reservoir arranged between the body and/or the tissue opening and the pre-evacuated container; and disconnecting or clamping off the pre-evacuated container from the bag reservoir after creation of the initial suction, such that afterwards the fluid secretion is collected inside the bag reservoir by a gravity drainage.

19. The system according to claim 1, wherein the fluid secretion comprises a wound secretion.

20. The system according to claim 1, wherein the pre-evacuated container is connectable to and disconnectable from the lower outlet opening via a connectable/disconnectable connector, and wherein the sealing device is disposed upstream of the connector.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic view of an embodiment of a system according to the invention;

(2) FIG. 2A is a sectional view through the wall of bag-like reservoir according to the invention;

(3) FIG. 2B is another sectional view through the wall of bag-like reservoir according to the invention;

(4) FIG. 2C is another sectional view through the wall of bag-like reservoir according to the invention; and

(5) FIG. 2D is another sectional view through the wall of bag-like reservoir according to the invention.

DETAILED DESCRIPTION

(6) In FIG. 1 an embodiment of a system 1 for drainage of fluid or wound secretion from body and/or tissue openings of the human or animal body is shown.

(7) The inventive system 1 comprises a bag-like reservoir 2. The bag-like reservoir 2 has an upper inlet opening 4a and a lower outlet opening 5. Further, the system comprises a container 3. The container 3 is pre-evacuated, thus has a vacuum. Further, the container 3 has an inlet opening 4b, through which fluids or wound secretion can be aspirated into the container 3.

(8) The features “top”, “bottom”, “upper”, “lower” and such the like refer to the use position of the system according to the invention.

(9) The inlet opening 4b of the pre-evacuated container 3 is connected with the outlet opening 5 located at the bottom of the bag-like reservoir 2. The connection between the container 3 and the bag-like reservoir 2 is established using a tube-like outlet 6, wherein the tube-like outlet 6 is directly located at the outlet opening 5 of the bag-like reservoir 2. In a preferred embodiment the lower outlet opening 5 and tube-like outlet 6 of the bag-like reservoir are built integrally or in one-part.

(10) The system further comprises a drainage line 9, wherein the one end of the drainage line 9 is connected to the inlet opening 4a at top of the bag-like reservoir 2. The free end of the drainage line 9 has a Luer-Lock connector 10 with a protection cap, wherein a corresponding Luer-Lock connector can be connected to the Luer-Lock connector 10. For example the Luer-Lock connector 10 of the drainage line 9 of the system 1 according to the invention can be connector an aspirator, so that fluid or wound secretion is transferable from a not shown body or tissue opening of the human or animal body vie the drainage line 9 into the bag-like reservoir 2 and optional additionally through the bag-like reservoir 2 into the pre-evacuated container 3.

(11) Presently the free end of the tube-like outlet 6 of the bag-like reservoir 2 also has a Luer-Lock connector 10, so that the also with a corresponding counter-part provided inlet opening 4b of the pre-evacuated container 3 is connectable to the bag-like reservoir 2.

(12) The container 3 is actually pre-evacuated with about 98000 Pascal [Pa] (corresponding to a high-vacuum drainage) or alternatively with about 40000 Pascal [Pa] (corresponding to a low-vacuum drainage).

(13) With the vacuum inside the pre-evacuated container 3 an initial suction is crated to start the drainage, so that fluids can be transferred from the body and/or tissue opening of the human or animal body into the system 1 according to the invention. The initial suction created by the vacuum guarantees a secure initiation of the drainage. Particularly for gravity drainage which does not use a vacuum to create a suction it is often problematic to initiate the transfer of fluids or wound secretion in a provided reservoir. This disadvantage is avoided by the inventive solution by using the advantage of the initial suction caused by a vacuum to start the drainage.

(14) The inventive solution provokes the suction caused by the pre-evacuated container 3 over the bag-like reservoir 2. Thus, the suction must be strong enough, so that this is possible. Presently at least part of the surface of the inner wall of the bag-like reservoir 2 is profiled. In a preferred embodiment of the invention the inner wall of the bag-like reservoir 2 has rips, nubs or such the like. This allows a better transfer of the suction caused by the pre-evacuated container 3 over the bag-like reservoir 2. The rips, nubs or such the like of the inner walls of the bag-like reservoir 2 built air channels, which help to transfer the suction of the vacuum.

(15) After a successful initialisation of the drainage by the vacuum of the container 3, the pre-evacuated container 3 can be disconnected from the inventive system 1. For comfortably disconnecting the pre-evacuated container 3 from the inventive system 1 a Luer-Lock connection is provided. To avoid that any fluid or wound secretion present at the connection between the outlet opening 5 of the bag-like reservoir 2 and the inlet opening 4b of the container 3 accidentally exits the system 1, a slide-clamp 7b is located above the inlet opening 4b of container 3, which can seal a tube-like clamping part (connection between the inlet opening 4b of the pre-evacuated container 3 and the Luer-Lock connector 10 of the tube-like outlet 6 of the bag-like reservoir 2). Further, the Luer-lock connector 10, which is located at the outlet 6 of the bag-like reservoir 2 and between the bag-like reservoir 2 and the pre-evacuated container 3, has a check valve 8.

(16) Fluid or wound secretion can also be collected in the pre-evacuated container 3, by aspirating the fluid or wound secretion over the bag-like reservoir 2 into the pre-evacuated container 3. For example only after collecting of fluid or wound secretion (as described above) the pre-evacuated container 3 is disconnected from the inventive system 1, so that the fluid or wound secretion collected in the pre-evacuated container 3 can be used for further examinations. The drainage into the bag-like reservoir 2 is unimpaired thereof.

(17) After disconnecting the pre-evacuated container 3 from the inventive system 1 the fluid or wound secretion is solely collected in the bag-like reservoir 2. After disconnecting the pre-evacuated container 3 this functions as a gravity drainage, which is unproblematic since the drainage and thus the liquid flow is already active and sufficiently strong.

(18) The advantage of the inventive system 1 is that the bag-like reservoir 2 provides a high drainage capacity since the capacity of the bag-like reservoir 2 is much bigger than the capacity of the pre-evacuated container 3. Pre-evacuated containers 3 with a high capacity are particularly expensive in manufacturing, whereas bag-like reservoirs 2 with a big capacity are inexpensive in manufacturing. If the pre-evacuated container 3 is only used to start the drainage a further advantage is that the pre-evacuated container 3 can be used multiple times to initiate or initialize the drainage. Due to the bulky contour of the pre-evacuated container 3 these have a high storage requirement. However, this storage requirement can be reduced by reusing the pre-evacuated container 3 as described above. In contrast to this, multiple bag-like reservoirs 2 can be easily stored by the user because of their contour.

(19) In a preferred embodiment the inlet opening 4a of the bag-like reservoir 2 has a backflow protection, so that fluid collected in the bag-like reservoir 2 cannot accidentally exit from the bag-like reservoir 2. Presently the backflow protection is a so-called lip-sealing, which ensures that fluid or wound secretion already collected in the bag-like reservoir 2 cannot exit through the inlet opening 4a of the bag-like reservoir 2, but at the same time ensures further fluid or wound secretion can flow via the lip-vent as backflow protection through the inlet opening 4a into the bag-like reservoir 2.

(20) The outlet opening 5 or the tube-like outlet 6 of the bag-like reservoir 2 is presently provided with a slide-clamp 7a, so that during disconnecting the bag-like reservoir 2 and the pre-evacuated container 3 no fluid collected in the bag-like reservoir 3 can exit.

(21) The pre-evacuated container 3 further has a bellow as a vacuum indicator 11, so that the user can easily identify whether a vacuum is present inside container 3. The bellow as vacuum indicator 11 is fully contracted if a vacuum is inside container 3 and expands stepwise until the container 3 has filled with air and no vacuum is present anymore inside container 3.

(22) The bag-like reservoir 2 as well as the pre-evacuated container 3 can have a scale, so that a user can easily identify the amount of fluid present in the bag-like reservoir 2 or pre-evacuated container 3. Further, the bag-like reservoir 2 as well as the pre-evacuated container 3 can have a mounting or holder 12a or 12b, which can be used to used to fix the bag-like reservoir 2 and/or the pre-evacuated container 3 to a stand, IV-stand or such the like. Furthermore, the bag-like reservoir 2 additionally has a handle 13, presently in form of a handle-hole in the bag-like reservoir 2, so that a user can easily handle the bag-like reservoir 2, for example if the bag-like reservoir 2 has to be replaced after it is full with liquid or wound secretion.

(23) In FIGS. 2a to 2d different embodiments of walls 14 of an inventive bag-like reservoir 2 are shown in sectional views. In FIG. 2a the inner wall 16 of the bag-like reservoir 2 has nubs 17, which are located directly one to another. In contrast to this the inner wall 16 in FIG. 2b has rips 19, which are spaced from one another. Between the rips 19 channels are built for guiding the suction.

(24) The inner wall according to FIG. 2c is wavy, so that also channels are built between rises or wave elevations 18. In contrast to FIG. 2a the nubs 17 of the inner wall 16 of the bag-like reservoir 2 according to FIG. 2d are spaced from one another.

(25) In all FIGS. 2a to 2d the respective outer wall 15 of the bag-like reservoir 2 is even, wherein the respective outer wall 15 also could be profiled, for example nubbly, ripped, wavy or such the like. Also the inner walls 14 of the bag-like reservoir 2 not shown in FIGS. 2a to 2d opposing the shown walls 14 of the bag-like reservoir 2 could be built correspondingly to the shown walls 14 of the bag-like reservoir 14.

(26) The embodiments shown in the figures and described above are only illustrative and are not limiting the invention.

LIST OF NUMERALS

(27) 1 System for drainage of fluids or wound secretion from a body and/or tissue opening of the human or animal body 2 bag-like reservoir 3 pre-evacuated container 4a inlet opening (bag-like reservoir) 4b inlet opening (pre-evacuated container) 5 outlet opening (bag-like reservoir) 6 outlet (bag-like reservoir) 7a slide-clamp (bag-like reservoir) 7b slide-clamp (pre-evacuated container) 8 check valve 9 drainage line 10 Luer-Lock connector 11 vacuum indicator 12a holder/mounting (bag-like reservoir) 12b holder/mounting (pre-evacuated container) 13 handle 14 wall (bag-like reservoir) 15 outer wall (bag-like reservoir) 16 inner wall (bag-like reservoir) 17 nub (inner wall of bag-like reservoir) 18 wave (inner wall of bag-like reservoir) 19 elevation rip (inner wall of bag-like reservoir)