DE102017202795A1 - Drainage device - Google Patents

Drainage device

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Publication number
DE102017202795A1
DE102017202795A1 DE102017202795.9A DE102017202795A DE102017202795A1 DE 102017202795 A1 DE102017202795 A1 DE 102017202795A1 DE 102017202795 A DE102017202795 A DE 102017202795A DE 102017202795 A1 DE102017202795 A1 DE 102017202795A1
Authority
DE
Germany
Prior art keywords
device
lumen
drainage
measuring
characterized
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
DE102017202795.9A
Other languages
German (de)
Inventor
Stefan Bollmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Medizinisch Technische Geraetebau GmbH
Medizinisch-Technische Geratebau GmbH
Original Assignee
Medizinisch Technische Geraetebau GmbH
Medizinisch-Technische Geratebau GmbH
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 Medizinisch Technische Geraetebau GmbH, Medizinisch-Technische Geratebau GmbH filed Critical Medizinisch Technische Geraetebau GmbH
Priority to DE102017202795.9A priority Critical patent/DE102017202795A1/en
Publication of DE102017202795A1 publication Critical patent/DE102017202795A1/en
Application status is Pending legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • A61M1/0025Suction drainage systems comprising sensors or indicators for physical values
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0023Suction drainage systems
    • A61M1/0031Suction control
    • A61M1/0033Suction control by changing the size of a vent
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/0058Suction-irrigation systems
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M2205/00General characteristics of the apparatus
    • A61M2205/33Controlling, regulating or measuring
    • A61M2205/3331Pressure; Flow

Abstract

The present invention relates to a drainage device for delivering blood, secretions or air from the body of a patient, in particular a chest drainage device for delivering blood, secretions or air from the pleural space (the space between the lung surface and the pleura) to maintain its physiological negative pressure or restore.

Description

  • The present invention relates to a drainage device for delivering blood, secretions or air from the body of a patient, in particular a chest drainage device for delivering blood, secretions or air from the pleural space (the space between the lung surface and the pleura) to maintain its physiological negative pressure or restore. Furthermore, the following fields of application for the described device according to the invention come into consideration:
    • • wound drainage,
    • • vacuum treatment,
    • • Endoluminal Vacuum Therapy,
    • • Subglottic suction,
    • • Autologous direct extraction,
    • • Machine transfusion,
    • • Bronchial toilet.
  • Drainage devices are known from the prior art, which have a tube system, which in turn has at least two lumens, wherein a first lumen is designed as a drainage lumen and a second lumen as a measuring / flushing lumen. The distal end of the drainage lumen is in fluid communication with the distal end of the sensing / irrigation lumen, forming a catheter as a common end portion with at least one suction port. The catheter as a common end portion of the tubing system is inserted into a body cavity or wound of a patient to be treated for treatment to be performed. The drainage devices furthermore have at least one secretion collecting container and at least one pump and at least one regulating device. At the proximal end of the measuring / irrigation lumen a valve means is arranged and the proximal end of the drainage lumen is connected to the secretion collecting container. The pump is connected to the secretion collecting container such that a negative pressure can be generated in the latter and in the drainage lumen.
  • The negative pressure generated by the pump continues through the distal end of the drainage lumen into the region of the catheter as the common end portion of the tubing system. By means of the present underpressure, the body's own secretions can be sucked out of the body cavity or wound of the patient to be treated by the at least one suction opening. The secretions are removed via the drainage lumen into the secretion collecting container of the drainage device.
  • The body's secretions often contain proteins, which can precipitate and lead to blockages and / or narrowing in the area of the drainage lumen.
  • To eliminate possible blockages, the valve device can be opened at the proximal end of the measuring / rinsing lumen, whereby a pressure difference between the measuring / rinsing lumen and drainage lumen is established or increased, by means of which possible blockages in the drainage lumen can be removed. Due to the pressure difference between the atmospheric pressure (in the metering / flushing lumen, the catheter as the common end portion and before clogging) and the negative pressure (in the drainage lumen behind the clogging), the clogging can be drained from the drainage lumen into the secretion catcher.
  • In the abovementioned drainage devices of the prior art, it is known to open the valve device for aeration of the measurement / irrigation lumen independently of actually present obstructions in the drainage lumen at defined, unchangeable time intervals. A disadvantage of the described prior art is that the valve device is opened regardless of the actual state of the drainage lumen at fixed predetermined time intervals. Here, the time intervals are deliberately chosen short to ensure that any blockages can be removed after a short period of time and to ensure the success of the therapy of the drainage device continuously.
  • The valve device is opened very frequently due to the short time intervals. Following the valve opening, the pump must be used to restore the desired negative pressure to ensure drainage, increasing the pump's output to build up the desired negative pressure. This has the disadvantage that, due to the frequent actuation of the valve device as well as the actuation of the pump device, there is a noise load for the patient to be treated by means of the drainage device. A further disadvantage is that an increased energy consumption in the drainage device is present by the frequent operation of the valve device and the pump device. In particular, in mobile operation, wherein the power supply of the drainage device is ensured by means of batteries or accumulators, shortened by the increased energy requirements, the duration of the drainage device.
  • The present invention is therefore based on the object to provide an improved drainage device with reduced energy consumption, which has means for detecting the current negative pressure, as well as for detecting a closure of the drainage lumen has.
  • To solve this problem serve the features of claim 1.
  • The drainage device according to the invention is characterized in that it further comprises a differential pressure measuring device which is connected at one end to the secretion collecting container and the other to the measuring / rinsing lumen, and the control device continuously monitors the differential pressure measured by means of the differential pressure measuring device and if a predetermined differential pressure is exceeded the valve device for a predetermined period of time opens.
  • As a result of the opening of the valve device, the differential pressure between the measuring / irrigation lumen and the drainage lumen is further increased, so that possible solids present in the region of the drainage lumen or highly viscous liquids, which in turn lead to constrictions or blockages of the drainage lumen, can be removed from the drainage lumen whose distal end can be discharged into the secretion collecting container.
  • In the embodiment provided according to the invention, the valve device is opened only when a defined differential pressure between the measuring / flushing lumen and the drainage lumen is exceeded. This has the advantage that the valve device is opened only in the presence of a differential pressure detected by the differential pressure measuring device actual blockage or constriction of the drainage lumen, so that unnecessary openings of the valve devices and associated additional actuations of the pump can be avoided.
  • Likewise, the time profile of the differential pressure can be monitored and, with a certain increase or decrease in the differential pressure over a defined period of time, the opening of the valve device can be made via the regulating device.
  • It can also be provided that, depending on the magnitude of the differential pressure, different valve opening times are predetermined by the control device.
  • The control device may be a controller in the sense of an open control loop, but alternatively it may also be a closed loop in which a comparison of the predetermined desired value with the actual value measured by means of a sensor device takes place.
  • The pump is designed such that it has an inlet and an outlet, wherein during operation of the pump at its inlet a negative pressure and at the outlet of which an overpressure is generated.
  • Preferably, it can be provided that the drainage device comprises an absolute pressure measuring device which is connected at one end to the secretion collecting container and at the other end to the atmosphere for measuring the negative pressure present in the secretion collecting container.
  • The continuous measurement and monitoring of the vacuum present in the secretion collecting container and therefore also in the drainage lumen connected to the secretion collecting container has the advantage that the pump is actuated only in the case where a desired negative pressure is no longer present in the secretion collecting container. As a result, unnecessary operations of the pump of the drainage device can be avoided.
  • Furthermore, provision can be made for the regulating device to vary the suction power of the pump as a function of the negative pressure measured by means of the absolute pressure measuring device and / or of the differential pressure measured by means of the differential pressure measuring device. The suction power of the pump can furthermore be controlled as a function of the difference in the pressure determined by means of the absolute pressure measuring device minus the pressure measured by means of the differential pressure measuring device.
  • By varying the suction power of the pump by means of the control device, the operation of the pump can be very flexibly adapted to the actual pressure conditions present. Thus, the pump can be operated, for example, with slight deviations from the desired negative pressure to be set with low power. This has the advantage on the one hand that the energy consumption for the operation of the pump is reduced to the necessary minimum and, on the other hand, the noise pollution caused by the operation of the pump can be kept low.
  • The pump can be designed as a diaphragm pump, rotary pump or piston-cylinder pump.
  • It can be provided that a continuous variation of the suction power of the pump is carried out by means of the control device as a function of the measured negative pressure or of the measured differential pressure.
  • By measuring the differential pressure between the measuring / rinsing lumen and the drainage lumen, it is also possible by means of the measured differential pressure to extract the extracted fluid amount of the drainage device.
  • When a defined differential pressure between the measuring / rinsing lumen and the drainage lumen is exceeded, it is assumed that there is a blockage or a significant constriction in the drainage lumen. In this case, the negative pressure generated by means of the pump in the secretion collecting container and the drainage lumen can not be passed on via the common distal end portion to the measuring / rinsing lumen.
  • Furthermore, it can be provided that the measuring / rinsing lumen, the catheter and the drainage lumen have a wall bounding the respective lumen, wherein a support structure is embedded in the wall of the measuring / rinsing lumen and / or the catechist and / or the drainage lumen. which prevents collapse and / or kinking of the respective lumen.
  • The treatment of the patient by means of the drainage device according to the invention is often carried out over long periods of time, wherein at times further treatments are performed on the patient. In particular, due to displacement of the patient to be treated by means of the drainage device, kinking or pressing off of the drainage lumen and / or the measuring / rinsing lumen as well as of the catheter as a common distal end section may occur, which often remains undetected. By embedding a support structure in the respective wall measuring / flushing lumen and / or the catheter and / or the drainage lumen is less sensitive to external forces or external influences that act on this in the context of everyday clinical life. An impressions or kinking of the lumen or of the catheter can be prevented by the embedded in the respective wall support structures or at least reduced. The support structure can be designed, for example, as a wire mesh or alternatively as a fiber reinforcement.
  • In particular, provision may be made for the support structure to be embedded only in sections in the wall of the measuring / irrigation lumen and / or catheter and / or the drainage lumen. As a result, for example, the flexibility or the flexibility of the hose system and the catheter can be influenced. In particular, heavily stressed areas of the walls can be reinforced by means of the support structures.
  • Furthermore, it can be provided to predetermine a geometric shape such as, for example, a curvature for the measuring / irrigation lumen and / or the catheter and / or the drainage lumen by embedding preformed support structures. The specification of a geometric shape for the lumen has the advantage that the course of the tube system is adapted to the body geometry of the patient to be treated or can be adapted by bending and subsequently.
  • It may also be provided to embed an X-ray contrast strip in the wall of the lumen and / or the catheter. This makes it possible to detect the position of the catheter as a common distal end portion of the tube system or the lumen in the body of the patient by means of imaging techniques and adjust if necessary.
  • It can also be provided that the support structure introduced in the wall has an X-ray contrast effect.
  • In particular, provision may be made for the wall of the measuring / irrigation lumen and / or the drainage lumen and / or the catheter to be produced from a biocompatible plastic, in particular from silicone, latex or rubber.
  • In a further preferred embodiment it can be provided to provide the wall of the tube system and / or of the catheter inside and / or outside with a coating, in particular it can be provided on the inner wall of the lumen to provide a microbicidal coating.
  • It can be provided that the pump can be brought into connection with the proximal end of the measuring / rinsing volume.
  • The outlet of the pump can thus be connected to the proximal end of the measuring / Spüllumens. During operation of the pump, an overpressure is generated at its outlet, which is applied to the proximal end of the measuring / rinsing lumen. Through this connection it is possible to further increase the differential pressure between the measuring / rinsing lumen and the drainage lumen in such a way that possible presently difficult to remove blockages can be removed from the drainage lumen. The pressure at the proximal end of the measuring / rinsing lumen can be raised above atmospheric pressure by connection to the outlet of the pump.
  • It can be provided in this case to establish the connection between the outlet of the pump and the proximal end of the measuring / irrigation lumen as a function of the prevailing pressure conditions via the regulating device.
  • In a preferred embodiment, it can be provided that the negative pressure that can be generated by means of the pump can be infinitely adjusted in a range from 0 to 100 mbar by means of the regulating device. Particularly preferably, the negative pressure generated by the pump in the basic mode, in particular in the case of the thorax drainage, an amount of 20mbar.
  • About the control device can be generated by variable adjustment of the pump power variable periods of time arbitrary pressure curves. It is conceivable that the treating staff can adapt specific pressure profiles for the treatment by means of the drainage device in order to achieve a desired therapy.
  • It may further be provided that the delivery rate of the pump is adjustable via the control device.
  • According to the invention, it can be provided that the regulating device has a data storage device for recording the determined pressure profiles of the differential pressure measuring device and / or the absolute pressure measuring device as well as for recording other parameters.
  • As other parameters, for example, the following data of the drainage device can be recorded:
    • • switch-on and / or switch-off time of the pump,
    • • operating time of the pump,
    • • Alarms and warnings
    • • Alarm acknowledgments
    • • Secretion vessel change
    • • Loading time
    • • Current and voltage of the power supply device
    • Negative pressure in the secretion collecting container,
    • • temporal course of the volume of air delivered,
    • The time course of the secretion or of the fluid conveyed,
    • • time course of the differential pressure between the measuring / rinsing lumen and the drainage lumen,
    • • Setting values.
  • In a preferred embodiment of the drainage device, provision may be made for the regulating device to have at least one data interface via which the parameters can be called up or transferred.
  • It may be provided that the data interface also includes a display device located on the device, if necessary with operating elements by means of which the therapy data can be displayed or called up directly.
  • Furthermore, the data interface may be a USB interface, an SD card slot or other data interfaces. In addition, the interface may be a network connection for connecting the drainage device to a network, for example a hospital network.
  • The therapy data can also be transmitted via the data interface wirelessly to external or central storage and / or evaluation facilities.
  • In a further embodiment, it is possible for control data for the operation of the drainage device, such as, for example, a negative pressure to be set, to be predeterminable via the data interface.
  • Furthermore, it can be provided that the valve device can additionally be opened via the control device at defined intervals.
  • It can preferably be provided that a first filter device is arranged in the measuring / irrigation lumen between the valve device and the distal end of the measuring / irrigation lumen.
  • Particularly preferably, the filter device is arranged in front of the junction of the differential pressure measuring device in the measuring / rinsing lumen.
  • Furthermore, in a preferred embodiment it can be provided that at least one second filter device is arranged in the at least one connection between the secretion collecting container and the differential pressure measuring device and / or the absolute pressure measuring device and / or the pump. In a further preferred embodiment, provision can be made for a sound damping device to be arranged at the proximal end of the measurement / irrigation lumen.
  • In a preferred embodiment, the catheter may be separably connected to the distal end of the measurement / irrigation lumen and / or to the distal end of the drainage lumen. For this purpose, a coupling device for coupling to a catheter can be provided at the distal ends of the measuring / irrigation lumen and the drainage lumen. The separable design has the advantage that different, adapted to the respective therapy site and purpose catheter can be used to the tube system.
  • In an alternative embodiment, it may be provided that both the measuring / irrigation lumen and the drainage lumen are continued in the region of the catheter as separate lumens and that the distal ends only come into fluid communication in a defined region of the catheter.
  • Furthermore, it can be provided that the secretion collecting container is designed to be separable from that of the drainage device and thus replaceable. This has the advantage that the container can be exchanged upon reaching a maximum amount of discharged secretion, without requiring the entire device must be changed.
  • In the housing of the vacuum pump or the secretion collecting container, a liquid sensor can further be arranged, by means of which the amount of liquid in the secretion collecting container can be detected. Particularly preferably, the amount of liquid present in the secretion container can be determined in a capacitive manner and transmitted to the regulating device. Depending on the determined amount of liquid, the control device can control or regulate the drainage device, in particular, a warning signal can be output upon reaching or exceeding a maximum level.
  • In the following, embodiments of the invention will be explained in more detail with reference to the drawings.
  • Show it:
    • 1 a schematic representation of a drainage device.
  • 1 shows a first embodiment of a drainage device according to the invention 1 that has a hose system 11 comprising, wherein the tube system 11 in turn two lumens 111 . 113 having. The first lumen is a drainage lumen 111 and the second lumen as a measuring / rinsing lumen 113 designed. The distal end IIId of the drainage lumen 111 is in fluid communication with the distal end 113d of the measuring / rinsing volume 113 and forms with this a catheter as a common distal end portion 115 of the hose system 11 , The catheter 115 as a common distal end portion of the hose system 11 is insertable into a body cavity or the wound of a patient. The catheter 115 as a common distal end portion of the hose system 11 has several suction openings 119 via which secretions accumulating in the body cavity or in the wound can be dissipated by means of negative pressure. In the illustrated embodiment according to 1 is the catheter 115 as a common distal end portion integral with the tube system 11 executed.
  • In an alternative embodiment, however, it is also conceivable a coupling or separation point between the hose system 11 and the catheter 115 provide, so that a separation of the tube system 11 from the catheter 115 can be made. As a result, in particular different adapted to the respective treatment area catheter 115 to the hose system 11 be connected. The drainage device 1 further comprises in the illustrated embodiment, a secretion collecting container 13 , a pump 15 and a control device 17. At the proximal end 113p of the measuring / rinsing volume 113 is a valve device 117 arranged. The proximal end 111p of the drainage lumen 111 is with the secretion receptacle 113 connected. In addition, the pump 15 so with the secretion collector 13 connected in that and in the drainage lumen 111 a negative pressure can be generated. Due to the connection of the secretion collecting container 13 with the drainage lumen and the common distal end portion 115 will be through the pump 15 produced negative pressure on the secretion collecting container 13 and the drainage lumen 111 to the common distal end portion 115 of the catheter 11 pass on. By in the common distal end portion 115 provided suction openings 119 can by means of the negative pressure in the body cavity or the wound located secretion on the suction openings 119 the common distal end portion 115 , the drainage lumen 111 fed and from this in the secretion receptacle 13 be dissipated.
  • The drainage device 1 further comprises a differential pressure measuring device 18 , which at one end with the secretion receptacle 13 and at the other end with the measuring / rinsing lumen 113 connected is. By means of the control device 17 is the means of the differential pressure measuring device 18 measured differential pressure Δp between the measuring / rinsing volume 113 and the secretion collecting container 13 continuously monitored and when exceeding a predetermined differential pressure .DELTA.p def the valve device 117 opened for a given period of time.
  • In the illustrated embodiment, the drainage device 1 furthermore via an absolute pressure measuring device 19 , which at one end with the secretion receptacle 13 and at the other end with the drainage device 1 surrounding atmosphere 20 connected is. By means of the absolute pressure measuring device 19 can by means of the pump 15 in the secretion receptacle 13 generated negative pressure p neg continuously monitored and measured.
  • The control device 17 according to 1 is both with the differential pressure measuring device 18 for measuring the differential pressure Δp, as well as with the absolute pressure measuring device 19 for measuring the negative pressure p neg present in the secretion collecting container 13. The control device 17 is beyond that with the pump 15 as well as the valve device 117 so connected that on the control device 17 the opening or closing state of the valve device 117 can be controlled and monitored, as well as the operation of the pump 15 is controllable and monitorable. The control device 17 is also with a data storage device 171 as well as with a data interface 173 connected.
  • In the illustrated embodiment, the drainage device 1 a sound damping device 25 in the area of the proximal end 113p of the measuring / rinsing volume 113 as well as the pump outlet of the pump 15 and at the atmosphere outlet of the absolute pressure measuring device 19 on. In the illustrated embodiment is also the possibility of a connection 27 the pump outlet with the proximal end 113p of the measuring / rinsing volume 113 indicated. Between the secretion receptacle 13 and the differential pressure measuring device 18 or the absolute pressure measuring device 19 and the pump 15 are in the illustrated embodiment, the drainage device 1 second filter means 23b arranged. The filter devices 23b prevent ingress of fluids from the secretion receptacle to both the absolute and differential pressure gauges 18 . 19 and the pump 15 , Furthermore, a first filter device 23a between the measuring / flushing lumen 113 and the valve device 117 arranged, wherein the first filter device 23a Ingress of body fluids from the area of the measuring / rinsing lumen 113 prevented in the valve device. Both the drainage lumen 111 , as well as the measuring / irrigation lumen 113 each have a wall in the illustrated embodiment 111w . 113w on. The walls 111w . 113w are in the middle area of the catheter 11 guided adjacent or integrally executed.

Claims (15)

  1. A drainage device (1) comprising - a tubing system (11) having at least two lumens (111, 113), the first lumen being configured as a drainage lumen (111) and the second lumen being a measurement / purging lumen (113) and wherein the distal end (111d ) of the drainage lumen (111) is in fluid communication with the distal end (113d) of the measuring / rinsing lumen (113) and these form a catheter (115) as a common distal end portion of the tube system (11), - at least one secretion collecting container (13), - at least one pump (15), and - at least one regulating device (17), wherein a valve device (117) is arranged at the proximal end (113p) of the measuring / rinsing lumen (113), the proximal end (111p) of the drainage lumen ( 111) is connected to the secretion collecting container (13), wherein in the region of the common end portion (115) at least one suction port (119) is formed, and wherein the pump (15) is so connected to the secretion collecting container (13) that in this and i a negative pressure can be generated in the drainage lumen (111), characterized in that the drainage device (1) furthermore comprises a differential pressure measuring device (18) which is connected at one end to the secretion collecting container (13) and at the other end to the measuring / flushing lumen (113), and the control device (17) continuously monitors the differential pressure (Δp) measured by means of the differential pressure measuring device (18) and opens the valve device (117) for a predetermined period of time when a predetermined differential pressure (Δp def ) is exceeded.
  2. Drainage device (1) according to Claim 1 , characterized in that it further comprises an absolute pressure measuring device (19) which is connected at one end to the secretion collecting container (13) and at the other end to the atmosphere (20) for measuring the negative pressure (p neg ) present in the secretion collecting container (13).
  3. Drainage device (1) according to Claim 2 , characterized in that the regulating device (17) varies the suction power of the pump (15) as a function of the negative pressure (p neg ) measured by means of the absolute pressure measuring device (19) and / or the differential pressure (Δp) measured by means of the differential pressure measuring device (18).
  4. Drainage device (1) according to one of Claims 1 to 3 , characterized in that the measuring / rinsing lumen (113), the catheter (115) and the drainage lumen (111) have a wall (111w, 113w, 115w) bounding the respective lumen (111, 113, 115), wherein in the wall (111w, 113w, 115w) of the measuring / rinsing lumen (113) and / or the catheter (115) and / or the drainage lumen (111) a support structure (114) is embedded, which prevents a collapse and / or kinking of the respective lumen (111,113,115) ,
  5. Drainage device (1) according to one of Claims 1 to 4 , characterized in that the pump (15) in connection with the proximal end (113p) of the measuring / Spüllumens (113) can be brought.
  6. Drainage device (1) according to one of Claims 1 to 5 , characterized in that the Vacuum (p neg ) which can be generated by means of the pump (15) can be infinitely adjusted in a range from 0 to 100 mbar, in particular when thoracic drainage is carried out by means of the regulating device (17).
  7. Drainage device (1) according to one of Claims 1 to 6 , characterized in that the delivery rate of the pump via the control device (17) is adjustable.
  8. Drainage device (1) according to one of Claims 1 to 7 , characterized in that the control device via a data storage device (171) for recording the determined pressure gradients of the differential pressure measuring device (18) and / or the absolute pressure measuring device (19) and for recording other parameters (21).
  9. Drainage device (1) according to one of Claims 1 to 8th , characterized in that the control device (17) has at least one data interface (173) via which the parameters can be called or transferred.
  10. Drainage device (1) according to one of Claims 1 to 9 , characterized in that the valve device (117) via the control device (17) is additionally openable at defined time intervals.
  11. Drainage device (1) according to one of Claims 1 to 10 , characterized in that a first filter device (23) is arranged in the measuring / rinsing lumen (113) between the valve device (117) and the distal end (113d) of the measuring / rinsing lumen (113).
  12. Drainage device (1) according to one of Claims 1 to 11 , characterized in that at least one second filter device (23b) is arranged in the at least one connection (131) between the secretion collecting container (13) and the differential pressure measuring device (18) and / or the absolute pressure measuring device (19) and / or the pump (15) ,
  13. Drainage device (1) according to one of Claims 1 to 12 , characterized in that at the proximal end (113p) of the measuring / Spüllumens (113) a sound damping device (25) is arranged.
  14. Drainage device (1) according to one of Claims 1 to 13 , characterized in that the catheter (115) is separably connected to the distal ends of the measuring / rinsing lumen (113d) and the drainage lumen (11d).
  15. Drainage device (1) according to one of claims 1 to 14, characterized in that the secretion collecting container (13) of the drainage device (1) is designed separable and replaceable.
DE102017202795.9A 2017-02-21 2017-02-21 Drainage device Pending DE102017202795A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102017202795.9A DE102017202795A1 (en) 2017-02-21 2017-02-21 Drainage device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102017202795.9A DE102017202795A1 (en) 2017-02-21 2017-02-21 Drainage device
EP18705373.1A EP3585452A1 (en) 2017-02-21 2018-02-13 Drainage device
PCT/EP2018/053512 WO2018153721A1 (en) 2017-02-21 2018-02-13 Drainage device

Publications (1)

Publication Number Publication Date
DE102017202795A1 true DE102017202795A1 (en) 2018-08-23

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DE102017202795.9A Pending DE102017202795A1 (en) 2017-02-21 2017-02-21 Drainage device

Country Status (3)

Country Link
EP (1) EP3585452A1 (en)
DE (1) DE102017202795A1 (en)
WO (1) WO2018153721A1 (en)

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