WO2013182461A1 - Dispositif pour drainer des liquides organiques - Google Patents

Dispositif pour drainer des liquides organiques Download PDF

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Publication number
WO2013182461A1
WO2013182461A1 PCT/EP2013/061063 EP2013061063W WO2013182461A1 WO 2013182461 A1 WO2013182461 A1 WO 2013182461A1 EP 2013061063 W EP2013061063 W EP 2013061063W WO 2013182461 A1 WO2013182461 A1 WO 2013182461A1
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WO
WIPO (PCT)
Prior art keywords
chamber
body fluid
inlet
ventilation
flow
Prior art date
Application number
PCT/EP2013/061063
Other languages
German (de)
English (en)
Inventor
Andreas Spiegelberg
Original Assignee
Spiegelberg GmbH & Co. KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spiegelberg GmbH & Co. KG filed Critical Spiegelberg GmbH & Co. KG
Publication of WO2013182461A1 publication Critical patent/WO2013182461A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M27/006—Cerebrospinal drainage; Accessories therefor, e.g. valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/70—Gravity drainage systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M27/00—Drainage appliance for wounds or the like, i.e. wound drains, implanted drains
    • A61M27/002—Implant devices for drainage of body fluids from one part of the body to another
    • A61M2027/004—Implant devices for drainage of body fluids from one part of the body to another with at least a part of the circuit outside the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0464—Cerebrospinal fluid

Definitions

  • the invention relates to a device for the drainage of body fluids according to the preamble of claim 1.
  • cerebral water (CSF cerebralis or simply shortened to cerebrospinal fluid) comes into consideration as body fluid to be drained.
  • CSF cerebrospinal fluid
  • a vented drip chamber is connected at a predetermined height above the head of the patient with a catheter, the tip of which is pushed into one of the fluid-filled brain chambers.
  • the arrangement above the patient ensures that the drainage only takes place when the pressure of the cerebral water is higher than the hydrostatic pressure to be overcome, which is determined by the height difference between the patient and the drip chamber.
  • the liquid that drips into the drip chamber displaces the air in the drip chamber, which flows out through a vent opening via a sterile filter.
  • the drip chamber is dimensioned to receive the drainage volume one day. These are typically in about 100 ml.
  • a collection vessel eg. B. arranged a bag into which the drip chamber at regular intervals, for. B. once a day, is emptied. Air flows from the surrounding atmosphere into the drip chamber. Because of the sterile filter, this air is germ-free.
  • the arrangement is usually delivered sterile. It is hermetically sealed so that no germs can enter that pose a risk of infection to the patient. This arrangement is problematic in situations of temporarily artificially elevated pressure, eg. B. by mechanical influences such as abdominal cramping, coughing or screaming. In such situations, too much fluid is drained off, posing a significant hazard to the patient. Such a situation is called overdrainage.
  • the arrangement is problematic in situations in which the predetermined height difference is not met. Such situations may be due to negligence in handling or failure of fasteners.
  • a brain water drainage system is known from WO 2007/014582 A1, which attempts to avoid all over-stick situations by actively carrying out the drainage by means of a peristaltic pump whose delivery speed is regulated as a function of the pressure measured in a drainage tube.
  • this arrangement can lead to failure of the scheme cause the pump uncontrollably pumped off too much or too little brain water.
  • EP 1 034 812 A2 discloses a drainage chamber for draining cerebrospinal fluid, which essentially consists of a tube which can be vented via a porous material, such as expanded polytetrafluoroethylene. This porous material is intended to adhere to the inner surface of an element of the tube to be inserted or glued to this.
  • an external ventricular drainage system which is designed as a closed system.
  • a ventricular drainage catheter is connected via a one-way valve to a collecting vessel into which the liquid to be drained can drip.
  • the rate of fluid flow is determined by monitoring the rate of drip in a drip chamber connected to the collection vessel.
  • the present invention has for its object to provide a drainage device for body fluids, which allows in a first pressure range, the drainage of a body fluid with a certain average volume flow and allows in a second pressure range, which is above the first pressure range, a drainage with a higher volume flow , At the same time, the overdrainages known from the prior art should preferably be avoided.
  • Such a device for the drainage of body fluids has a first chamber for receiving a body fluid.
  • the first chamber is equipped with an inlet for a body fluid to be introduced into the first chamber, with a drain for body fluid to be delivered out of the first chamber and with a ventilation device.
  • the venting device serves to allow air to flow out of the first chamber.
  • the inventively claimed device is characterized in that the venting device of the first chamber is closed by a gas-permeable element.
  • This gas-permeable element is particularly permeable only to gases, but not liquids or solids. It is therefore in particular an element permeable to gases only.
  • the gas-permeable element allows only a defined maximum flow rate, with the air can escape from the first chamber.
  • the properties of the gas-permeable element make it particularly advantageous to set a volume flow to be achieved into the first chamber.
  • the gas-permeable element can be designed such that the maximum possible volume flow is dependent on the pressure exerted on the element. An increase in the pressure of the body fluid flowing into the first chamber then leads to it an increase in the pressure acting on the gas-permeable element. This then increases the maximum possible volume flow of the air displaced from the first chamber through the gas-permeable element. Consequently, it is possible that first (at a pressure at a first level) a first maximum possible volume flow and at a pressure at a second level, which is above the first level, a second maximum possible volume flow, which is higher than the first maximum possible Volume flow is specified.
  • the claimed device is further characterized by the fact that it has a second chamber, which is also suitable for receiving a body fluid.
  • the second chamber is equipped with an inlet for a body fluid to be introduced into the second chamber, with a drain for body fluid to be delivered out of the second chamber and with a ventilation device.
  • the venting device serves to expel air from the second chamber and to flow into the second chamber.
  • the second chamber is in fluid communication with the first chamber, wherein the outlet of the second chamber is connected to the inlet of the first chamber.
  • the connection between the inlet of the first chamber and the outlet of the second chamber can be made, for example, via an ordinary hose connection. By the length of the corresponding hose connection can then adjust the distance between the first chamber and the second chamber.
  • the device further comprises a first closure device.
  • the first closure device is designed to close the inlet of the second chamber in dependence on the volume of a body fluid present in the second chamber and in dependence on the pressure of a body fluid flowing through the inlet to the second chamber. Whether the closure device opens or closes the inlet of the second chamber thus depends on two different parameters.
  • body fluid may first flow into the drainage device.
  • the drainage device at a predetermined height above the patient, in which a Wegstattkeitsdrainage to be made, arranged.
  • the height difference determines the pressure that the body fluid of the patient must reach in order for drainage to take place, that is, for the body fluid to pass from the patient to the second chamber of the drainage device.
  • Such drained body fluid, which flows into the second chamber, can then leave the second chamber through the outlet of the second chamber again. This determines the design of the gas-permeable Elements of the first chamber, the volume flow of the exiting the second chamber body fluid.
  • the gas-permeable element is designed such that, when normal pressure prevails in the second chamber (around 1013 hPa or ambient air pressure), a volume flow is possible which results from the hydrostatic pressure of the body fluid contained in the second chamber with respect to the first chamber, into which the expiration results.
  • Suitable volume flows are for example in the range of 2 to 6 ml per hour, in particular 3 to 5 ml per hour, in particular about 4 ml per hour.
  • the gas-permeable element is preferably designed such that it allows a higher volume flow of the liquid emerging from the second chamber when the pressure in the second chamber is above the normal pressure. As a result, it can be ensured that the volume flow of the fluid to be drained also increases with increasing pressure in the patient (and thus also with increasing pressure in the second chamber). Short-term pressure peaks are intercepted by an embodiment of the claimed device, however, as will be explained.
  • the drainage device When the drainage device is used as intended, it is preferably arranged at such a height above the patient that the hydrostatic pressure to be overcome by the liquid to be drained is around 13 to 27 hPa (approximately 9.75 to 20.25 mm Hg), in particular approximately 15 to 20 hPa (about 1 1, 25 to 15.0 mm Hg), in particular about 17 to 19 hPa (about 12.75 to 14.25 mm Hg).
  • the height which is suitable so that the above-mentioned pressures for drainage must be overcome, is about 10 to 40 cm, in particular 15 to 30 cm, in particular 20 to 25 cm above the patient.
  • the second chamber now preferably has a relatively small volume. As long as the pressure of the body fluid in the patient remains largely constant, the body fluid flows into the second chamber at a constant volume flow and leaves it through the drain at the same constant volume flow. At a short-term pressure peak in the body of the patient, there is an increased volume flow in the second chamber, but not to an increased outflow of body fluid from the second chamber. As a result, the liquid level in the second chamber increases.
  • the first closure device is now preferably designed such that even a small increase in the liquid level in the second chamber is sufficient to cause the inlet to close into the second chamber by the first closure device.
  • the body fluid available in the second chamber Volume at about 5 to 20 ml, in particular about 7 to 15 ml, in particular about 10 to 13 ml amount.
  • the gas-permeable element has a membrane or is formed entirely from this membrane.
  • the membrane for example, a silicone rubber or a porous material, in particular a plastic, have or consist entirely of this.
  • Other materials that ensure a defined passage of gas but are also suitable as a membrane material.
  • the first chamber has a plurality of ventilation devices, which can be opened or closed as desired. If several venting devices are provided, each of these venting devices is preferably provided with a corresponding gas-permeable element. In this case, the gas-permeable elements can be designed the same or have different physical properties.
  • the maximum possible volume flow through the opened venting device (s) can be set in a particularly advantageous manner.
  • through-flow openings in the gas-permeable element can be equipped with this or with different cross-sections, via which the maximum possible volume flow is defined.
  • the maximum possible gas volume flow can be adjusted out of the first chamber continuously or in stages.
  • the venting device or the venting devices have an adjusting element which is suitable for a gas passage through the Vent device available cross-section of the ventilation device can increase or decrease.
  • This adjusting element can be designed, for example, in the manner of an adjustable roller blind, which can be pulled or pushed over the ventilation device as needed. The larger the area covered by the adjustment member, the less air can flow through the gas permeable member. If several venting devices are provided, some or all of the venting devices may be equipped with such a setting element. In this case, individual or common adjustment elements are conceivable.
  • the adjusting element can be brought steplessly or in steps over the gas-permeable element so that its effective area and thus also the maximum possible gas volume flow through the gas-permeable element can be adjusted as desired.
  • venting device or the venting devices can also be provided and set up such that air can flow through them into the first chamber. That is, in this case the venting device would simultaneously act as a venting device.
  • a ventilation device separate from the ventilation device, through which air can flow into the first chamber. Combinations of these variants are also conceivable. In this way, it is ensured that, according to the respective requirements, air can flow out into the first chamber as well as out of the first chamber.
  • one or more closure elements are provided, which serve for opening or closing the ventilation device and / or the ventilation device of the first chamber. These closure elements may be, for example, ordinary stopcocks.
  • This variant is particularly advantageous if different ventilation devices are provided on the first chamber, which are for example also equipped with different gas-permeable membranes. By appropriate closure elements is now an independent locking and unlocking of individual venting devices of the first chamber possible.
  • the outlet of the first chamber is provided with a drainage closure device which serves to open and close the outlet of the first chamber.
  • the drain closure device is set up such that opening the drain closure device simultaneously ensures that the ventilation closure element is opened. This variant is particularly useful when the ventilation device is integrated into the process.
  • the outlet of the first chamber is provided and arranged to be connected to an inlet of a third chamber.
  • This third chamber may be, for example, a commercially available drainage bag.
  • the outlet of the first chamber can be closed and opened by a closing element, such as a stopcock.
  • a closing element such as a stopcock.
  • the inlet of the first chamber is also equipped with a closure element. Then, a flow connection to the first chamber can be interrupted for a short time when the first chamber is to be emptied. Since this draining can be carried out relatively quickly, such interruption of the flow connection to the first chamber does not play a significant role in the drainage of the body fluid.
  • a closed system By the possibility of connecting a third chamber or a drainage bag to the first chamber, a closed system can be established, which also makes a drainage of body fluid over a longer period possible, without thereby increasing the risk of infection for the patient.
  • the first closure device may preferably be configured such that it does not release the inflow closed by it even if the body fluid pressure in the patient continues to increase, provided that the liquid level of the body fluid in the second chamber remains high enough for the second closure device to resist Inlet is pressed. In this way, it is particularly easy to ensure that overdrainages are avoided. For a further drainage of body fluid can only take place when the second chamber has emptied by draining body fluid so far that the first closure device due to the change in the volume of body fluid in the second chamber, but not due to an increasing fluid pressure of outside again releases.
  • the device has a second closure device. The second closure device is designed to close the ventilation device as a function of the volume of a body fluid present in the second chamber.
  • the opening behavior of the first closure device if the first closure device is present, for example, be configured such that the pressure required to open the first closure device is less than the pressure of the body fluid of the patient, under certain conditions established.
  • this pressure in this variant is sufficient to prevent the inlet from being opened by the first closure device against the hydrostatic pressure which is caused by the The second chamber located body fluid is built to effect. That is, it comes to the further inflow of body fluid through the inlet into the second chamber. At the same time, however, no more body fluid can flow out of the second chamber, so that the fluid level in the second chamber rises again.
  • the pressure at which further inflow of body fluid into the second chamber is made possible is preferably about 50 to 100 hPa (about 37.5 to 75 mm Hg), in particular about 60 to 90 hPa (about 45 to 67.5 mm Hg) ) and especially around 70 to 80 hPa (around 52.5 to 60 mm Hg).
  • the second closure device closes the ventilation device. In this way, on the one hand it is ensured that no body fluid can escape from the ventilation device. On the other hand, this also means that the increased fluid pressure in the patient propagates to the prevailing pressure in the second chamber.
  • the hydrostatic pressure in the second chamber is responsible for the outflow of body fluid from the second chamber through the drain, but in addition the increased fluid pressure.
  • the first chamber and the second chamber in this case form a substantially closed system. This results in an increase in the volume flow of the body fluid flowing out of the second chamber.
  • This volume flow now rises - within the framework of the technical specificities of the gas-permeable element of the first chamber - preferably in proportion to the pressure prevailing in the second chamber fluid pressure.
  • the limitation of the permissible pressure and the limitation of the possible volume flow are purely passive. In particular, no pumps or other active liquid transport systems are provided in the present device.
  • the first closure device and / or the second closure device are arranged directly in the second chamber.
  • the first closure device and / or the second closure device each have a shaped body with a density of less than 1 kg / m 3 .
  • they are completely formed from such a shaped body.
  • the corresponding moldings float on the body fluid located in the second chamber and are pushed upwards by this with increasing liquid level. This buoyancy of the moldings is thus used directly in this variant for closing the inlet and / or the ventilation device.
  • the ventilation device may preferably be equipped with a sterile filter in order to prevent the entry of germs into the chamber.
  • the first closure device and / or the second closure device comprise a force-amplifying lever mechanism.
  • This lever mechanism is preferably used to press a corresponding closure body against the inlet to be closed or against the venting device to be closed. If in this variant a molded body with a volume and a density is used whose buoyancy is not sufficient for closing the inlet or the ventilation device, this served to activate the corresponding lever mechanism and for the subsequent closure of the inlet or the ventilation device by the corresponding closure body.
  • the first chamber is disposed below the second chamber during operation of the device.
  • the height difference between the first and the second chamber determines the pressure at which the body fluid flows from the second chamber into the first chamber.
  • it can be predetermined by suitable means how much air can escape from the first chamber, namely in particular through the gas-permeable element of the first chamber. In this way, the volume flow can then be adjusted from the second chamber into the first chamber.
  • the constant conditions provides for a self-adjusting volume flow to drain the body fluid.
  • the first chamber preferably has a larger volume than the second chamber.
  • the first chamber preferably has such a volume that can accommodate the expected daily drainage volume of the body fluid to be drained.
  • the first chamber preferably has a volume of about 80 to 150 ml, in particular about 90 to 120 ml, in particular about 100 to 1 10 ml.
  • the present invention also relates to a drainage device consisting only of the second chamber described above (without first chamber), wherein any variants can be realized.
  • the design of the outlet of the second chamber determines the volume flow of the body fluid emerging from the second chamber.
  • it may be provided to design the drain in fluid communication with a gas-permeable element according to the above explanations.
  • the present invention also relates to the use of a device according to the previous embodiments for drainage of a body fluid of a patient.
  • the invention further relates to a method for drainage of body fluids using a device according to the previous explanations.
  • the alternative or preferred embodiments of the device are analogously transferable to the corresponding use and a corresponding method.
  • a catheter is placed in the compartment of a patient, from which a body fluid is to be drained. This catheter is then connected via a feed line to the inlet of the first chamber or - if a second chamber is present - with the inlet of the second chamber. Care is taken that the device is located at a predetermined height above the patient, thus prescribing the pressure that must be overcome until drainage of body fluid occurs. This method is preferably carried out until the pressure of the body fluid to be drained has returned to a normal level, so that further drainage is no longer necessary.
  • FIG. 1 shows an embodiment of a first chamber of a drainage device
  • FIG. 2A shows the front side of an embodiment of a gas-permeable element
  • FIG. 2B shows the rear side of the gas-permeable element of FIG. 2A
  • FIG. 3 shows an exemplary embodiment of a drainage device with two chambers
  • Figure 4 is a detail of the embodiment of Figure 3 and
  • Figure 5 shows an embodiment of a third chamber of a drainage device.
  • first drip chamber 7 shows an embodiment of a cylindrical first drip chamber 7 as the first chamber of a drainage device.
  • first tube 31 and an inlet 8 when an optional inlet valve 9 is opened, body fluid can enter the first drip chamber 7.
  • the air to be displaced in this case is removed via a vent 10 as a venting device from the first drip chamber 7.
  • the vent 10 is provided with a vent valve 1 1 as a ventilation closure element, by means of which a venting of the first drip chamber 7 can be allowed or interrupted.
  • a suitable selection of the vent valve 1 1 also a quantitative regulation of the air volume flow passing through the vent 10 is possible.
  • the vent 10 is connected to a membrane holder 14, wherein a centrally located connector device 15 is used on the membrane holder 14 for connection.
  • a gas-permeable membrane 16 is arranged as a gas-permeable element.
  • the first drip chamber 7 also has a drain 12, which is arranged on the underside of the first drip chamber 7.
  • This drain 12 is provided with a drain valve 13 as a drain closure device through which the drain 12 can be closed or opened. If the drain valve 13 is opened and, at the same time, air is admitted through the vent 10, which also serves as ventilation, into the first drip chamber 7, the contents of the first drip chamber 7 can be emptied out of it.
  • FIG. 2A shows the front side of the membrane holder 14 from FIG. 1.
  • the front side of the membrane holder is oriented towards the first drip chamber 7.
  • the gas-permeable membrane 16 is arranged inside the membrane holder 14.
  • the gas permeable membrane 16 is impermeable to liquids and solids. It is therefore an exclusively gas-permeable membrane.
  • FIG. 2B shows the rear side of the membrane holder 14 of FIG. 2A.
  • Through a centrally arranged opening 17, air which passes through the plug connection 15 and the membrane 16 can escape from the membrane holder 14 again.
  • the shape and number of corresponding openings 17 can be varied as desired.
  • holes can be burned into the corresponding membrane material by means of a laser in order to adapt the gas permeability to the individual needs.
  • FIG. 3 shows an exemplary embodiment of a drainage device.
  • this drainage device additionally comprises a second drip chamber 1. It has over the embodiment of Figure 1 additional advantages of a volume flow modulation as a function of the pressure exerted by the incoming body fluid pressure.
  • the second drip chamber 1 of the embodiment of Figure 3 is connected via the first tube 31 to the first drip chamber 7 of the embodiment of Figure 1.
  • first drip chamber 7 is on the relevant References to FIG. 1. The same elements are provided with the same reference numerals.
  • the first drip chamber 7 is arranged under the intended use of the drainage device below the second drip chamber 1.
  • the first tube 31 connecting the second drip chamber 1 and the first drip chamber 7 has a length of approximately 20 cm.
  • the first tube 31 is connected to the inlet 8 of the first drip chamber 7.
  • This inlet 8 is, as already mentioned, provided with an inlet valve 9, so that the flow connection between the first drip chamber 7 and the second drip chamber 1 can be interrupted if necessary.
  • the inlet 8 of the first drip chamber 7 is equipped with a check valve 80. Furthermore, it is possible to equip only or the second drip chamber 1 with a check valve. This would usefully be arranged in the inlet 2 of the second drip chamber 1.
  • the serving as a second chamber cylindrical second drip chamber 1 has an inlet 2 through which body fluid can be introduced into the second drip chamber 1, and a drain 3, through which body fluid can be discharged from the second drip chamber 1 through. Furthermore, the second drip chamber 1 has a ventilation 4 as a ventilation device, through which air can flow into the second drip chamber 1 and can flow out of the second drip chamber 1.
  • a first float 5 in the form of a hollow plastic ball is arranged as the first closure device. If now a body fluid to be drained flows through the inlet 2 into the second drip chamber 1, this body fluid can leave the second drip chamber 1 through the outlet 3 again, in order then to flow into the first drip chamber 7.
  • the inflow of body fluid is greater than the amount of body fluid passing through the outlet 3, the fluid level in the interior of the second drip chamber 1 increases. As a result, the float 5 is pushed upward. When it touches a lower outlet 20 of the inlet 2, it closes the inlet 2, so that no more body fluid can flow into the second drip chamber 1 more.
  • the inlet 2 is connected to a second tube 21, which opens into a catheter.
  • This catheter is intended and adapted to be inserted into a fluid-filled brain chamber, as long as the body fluid to be drained is liquor. If another body fluid is to be drained, the second tube 21 is to be connected to a correspondingly suitable catheter, which is then introduced into the compartment of the patient to be treated, which contains the body fluid to be drained.
  • FIG. 5 shows an exemplary embodiment of a drainage bag 18 which can be used as a third chamber in order to allow emptying of the first drip chamber 7 (or of the second drip chamber 1).
  • the drainage bag 18 by means of a Inlet 19 connected via the third valve to the outlet 12 of the first drip chamber 7.
  • a venting of the drainage bag 18 can take place via a corresponding venting device 22.
  • a first bracket 23 is provided to close the inlet 19 to the drainage bag 18 when needed.
  • a second bracket 24 is provided to close the vent 22 of the drainage bag 18 as needed.
  • the drainage bag 18 has a drain 25 which can be closed by means of a third clamp 26 if necessary.

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Abstract

L'invention concerne un dispositif pour drainer des liquides organiques, comprenant une première chambre (7) et une deuxième chambre (8) destinées à recevoir un liquide organique, cette première et cette deuxième chambre (7, 8) comportant respectivement une admission (8, 2) pour un liquide à introduire et respectivement une évacuation (12, 3) pour un liquide à évacuer. Au moins un dispositif d'élimination d'air (10) est disposé dans la première chambre (7) et au moins un dispositif d'aération (4) est disposé dans la deuxième chambre (8). Le dispositif d'élimination d'air (10) est fermé par un élément perméable aux gaz (14, 15, 16) qui permet une sortie de l'air se trouvant dans la première chambre (7) selon un débit volumétrique maximal défini. L'admission (12) de la première chambre (7) est reliée à l'évacuation (3) de la deuxième chambre par écoulement. Le dispositif selon l'invention comprend un premier dispositif de fermeture (5) prévu et configuré pour fermer l'admission (2) de la deuxième chambre (1) en fonction du volume d'un liquide organique se trouvant dans la deuxième chambre (1) et en fonction de la pression d'un liquide organique s'écoulant par l'admission (2) vers la deuxième chambre (1).
PCT/EP2013/061063 2012-06-04 2013-05-29 Dispositif pour drainer des liquides organiques WO2013182461A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012209405.9 2012-06-04
DE102012209405A DE102012209405A1 (de) 2012-06-04 2012-06-04 Vorrichtung zur Drainage von Körperflüssigkeiten

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WO2013182461A1 true WO2013182461A1 (fr) 2013-12-12

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117695A2 (fr) 1983-02-23 1984-09-05 BAXTER INTERNATIONAL INC. (a Delaware corporation) Dispositif de drainage ventriculaire externe
US4731056A (en) * 1985-02-19 1988-03-15 Cordis Corporation External drainage antisiphon device
US5207661A (en) * 1991-06-07 1993-05-04 Smiths Industries Public Limited Company Body fluid drainage assembly
EP1034812A2 (fr) 1999-03-11 2000-09-13 Medtronic, Inc. Event hydrophobe incorporé dans une chambre de drainage de fluide cérébrospinal
WO2007014582A1 (fr) 2005-08-02 2007-02-08 Möller Medical Gmbh & Co Kg Systeme de drainage de liquide cephalo-rachidien
US20090088710A1 (en) * 2007-09-05 2009-04-02 Integra Lifesciences Corporation Volume limiting bodily fluid drainage system

Patent Citations (6)

* Cited by examiner, † Cited by third party
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