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WO2020043817A1 - Dispositif de drainage et ensemble de drainage - Google Patents

Dispositif de drainage et ensemble de drainage Download PDF

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Publication number
WO2020043817A1
WO2020043817A1 PCT/EP2019/073074 EP2019073074W WO2020043817A1 WO 2020043817 A1 WO2020043817 A1 WO 2020043817A1 EP 2019073074 W EP2019073074 W EP 2019073074W WO 2020043817 A1 WO2020043817 A1 WO 2020043817A1
Authority
WO
WIPO (PCT)
Prior art keywords
reservoir
drainage
drainage device
surrounding wall
lid
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.)
Ceased
Application number
PCT/EP2019/073074
Other languages
German (de)
English (en)
Inventor
Egon Wiest
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE102018121173.2A external-priority patent/DE102018121173A1/de
Priority claimed from DE202018104961.5U external-priority patent/DE202018104961U1/de
Application filed by Individual filed Critical Individual
Publication of WO2020043817A1 publication Critical patent/WO2020043817A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/64—Containers with integrated suction means
    • A61M1/68—Containers incorporating a flexible member creating suction
    • A61M1/684—Containers incorporating a flexible member creating suction bellows-type
    • 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
    • A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
    • A61M1/63—Containers for suction drainage, adapted to be used with an external suction source with means for emptying the suction container, e.g. by interrupting suction
    • 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
    • A61M1/71—Suction drainage systems
    • A61M1/73—Suction drainage systems comprising sensors or indicators for physical values
    • 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
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/04—Liquids
    • A61M2202/0401—Ascitics
    • 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
    • A61M2202/0492—Pleural
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
    • A61M2205/3389—Continuous level detection
    • 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
    • A61M2210/00—Anatomical parts of the body
    • A61M2210/10—Trunk
    • A61M2210/101—Pleural cavity

Definitions

  • the present invention relates to a drainage device and a
  • suction is often required in order to conduct liquid into a suitable collecting vessel via the implanted catheter, which can also be referred to as a permanent catheter.
  • effusion can be drained into a so-called vacuum bottle.
  • a container with reduced internal pressure is connected to the catheter.
  • the effusion that is to say the liquid, is passed through the catheter into the container through the suppression.
  • effusion drainage which is supported by suction, referred to as active drainage.
  • the vacuum bottles must be made of a rigid material in order to be able to withstand the initial suppression that prevails in the bottle.
  • this rigid shell ensures that the pressure inside the bottle increases continuously when pouring effusion. In this way, positive internal pressures are reached at the end of a drainage.
  • volume-dependent high negative pressures must be built up in the bottle, which e.g. for variants with a capacity of 1000 ml can be up to -800 mbar.
  • a high initial suction is created immediately after the connection has been established, which can be uncomfortable or even painful for the patient and / or can suck in adjacent tissue on the catheter.
  • This effect can be countered by reservoirs with a smaller filling volume, such as are often used in pleural effusions, by using a lower suppressor.
  • the initial suction cannot be reduced for the derivation of ascites, in which large volumes of typically up to 1-2 liters are drained per drainage process, since otherwise the required amount could not be derived, so that the patient basically takes the risk, for example of tissue suction.
  • Gravity bags are not affected by this limitation. Since they can be made from stretchable material, they build during the
  • Volumes can be drained by gravity at a substantially constant flow rate. However, as the driving force behind this type of drainage
  • vacuum bottles are disadvantageous in terms of disposal, since they take up a lot of space due to the rigid material from which they must be made. This is a great disadvantage for the patient, in particular for home use.
  • the present invention is therefore based on the object
  • the invention is based on the knowledge that this object can be achieved by using a mechanical structure for generating the suction, which can be controlled by means of mechanical devices.
  • the task is therefore solved by a
  • Active drainage device comprising:
  • a reservoir with a cover, a base, an surrounding wall, which extends between the cover and the base and is elastically deformable, and a valve on the cover,
  • At least one swivel joint that connects the lid and the bottom of the reservoir on one side of the surrounding wall
  • At least one jig which is at least on one side of the
  • a drainage device is a device that is suitable for the active drainage of liquids.
  • the drainage device is preferably a device for home use. The is particularly preferred
  • Drainage device a device that is suitable for the active drainage of liquids from the abdominal or pleural space.
  • Drainage device can therefore be used to treat, for example, ascites or pleural effusion.
  • the Drainage device can also be used to drain other body fluids such as urine, blood or blood serum. The ones described below
  • Influencing of the flow for example by means of pumps, takes place.
  • the drainage device comprises a reservoir, at least one swivel joint and at least one clamping device.
  • the reservoir is the reservoir into which the liquid drained from the body during drainage is collected.
  • the reservoir has a lid, a bottom, one extending between the lid and the top
  • the valve Surrounding wall and at least one valve on the lid.
  • the valve is preferably permanently attached to the cover. Liquid can enter the reservoir through the valve.
  • the valve can be, for example, a valve which prevents liquids and air from escaping from the reservoir up to a predetermined internal pressure of the reservoir.
  • the valve is preferably a non-return valve which completely prevents the escape of liquids and air from the reservoir.
  • the valve can be a lip valve, for example. This prevents liquids and air from flowing back into the catheter. If the reservoir is separated from the catheter, the reservoir can be emptied either by generating a higher internal pressure or, in the case of a check valve, by separating the valve from the reservoir.
  • the lid of the reservoir can also be referred to as the top of the reservoir and can represent, for example, a flat surface.
  • the bottom of the Reservoirs can also be referred to as the underside of the reservoir and can also represent, for example, a flat surface.
  • the surrounding wall of the reservoir connects the lid and the bottom and thus closes off the inside of the reservoir from the sides.
  • the surrounding wall is preferably designed in one piece with the lid and the bottom.
  • the reservoir forms an airtight one
  • the surrounding wall preferably represents a tubular shape.
  • the cross section of the tubular shape can be circular, oval or angular, for example.
  • the cross section of the tube shape is preferably oval and the surrounding wall thus forms an oval cylinder.
  • the surrounding wall and preferably the entire reservoir consist of an elastically deformable material.
  • the reservoir preferably has a rigidity which prevents the surrounding wall from deforming outwards or inwards.
  • the rigidity can be created by the material of the reservoir and / or by the geometry of the reservoir.
  • the reservoir can for example consist of a
  • the wall thickness of the lid, the bottom and the surrounding wall can be, for example, in the range from 0.5 mm to 1.5 mm, for example 0.8 mm.
  • the drainage device has at least one swivel joint which connects the lid and the bottom of the reservoir to one another on one side of the surrounding wall.
  • a swivel joint is a connecting device by means of which the cover and the base can pivot towards and away from one another.
  • the swivel joint can guide the lid and base during the swivel movement and, if necessary, support the swivel movement.
  • the swivel joint is connected on the one hand to the floor and on the other hand to the cover. The connection of the
  • Swivel with the lid and the bottom can be indirect or direct respectively.
  • the swivel joint can be attached directly to the cover on the one hand and to the floor on the other hand.
  • the swivel joint is connected to the cover and base indirectly, for example by a cover plate attached to the cover and by a base plate attached to the base.
  • a single swivel joint can be provided.
  • several, for example two, rotary joints are provided.
  • the drainage device has at least one clamping device, which on at least one side of the surrounding wall, the side on which the
  • Swivel joint is arranged, is located between the lid and the bottom of the reservoir.
  • a clamping device is a component or part of a component that is arranged between the cover and the bottom of the reservoir and that can exert a force on the cover and the base, by means of which the cover and the base are pressed apart at least in regions.
  • the force applied by the jig is therefore a compressive force.
  • the side of the surrounding wall on which the jig is provided is opposite to the side of the surrounding wall on which the swivel joint is arranged.
  • a region of the outer surface of the reservoir, which is formed by the surrounding wall, is therefore referred to as the side of the surrounding wall. In the case of a tubular shape of the surrounding wall with an oval
  • Cross section can therefore, for example, the swivel joint in the area of a first intersection of a secant along the largest diameter with the
  • Surrounding wall may be arranged.
  • the swivel joint and the clamping device are thus on opposite sides of the reservoir.
  • the cross section of the reservoir is an oval or a rectangle with a length greater than its width. This allows the distance between the jig and the swivel to be maximized.
  • the surrounding wall between the cover and the base is compressed and the clamping device is in the initial position
  • the starting position here is the position of the drainage device in which no suppression has yet been generated, that is to say in which the clamping device is in the tensioned state.
  • the lid and the base are preferably close to one another. With a flat lid and bottom, these are preferably parallel to one another.
  • the drainage device can be brought into this starting position and held manually.
  • a securing element is detachably connected to the drainage device, which the
  • Drainage device holds in the starting position. In the starting position, the surrounding wall between the lid and the bottom is compressed. As
  • the distance between the lid and the bottom of the reservoir can be increased by a movement from the initial position by the clamping device, as a result of which the volume inside the reservoir in which liquid can be taken up increases.
  • the distance between the lid and the bottom in the area of the Joint still kept low.
  • the relative movement between the base and cover, which is generated in particular by the clamping device, is thus limited by the rotary joint.
  • the bottom and lid can only be pivoted against each other. Since the surrounding wall in the
  • Deduction of the surrounding wall can be compensated and the surrounding wall therefore remains connected to the bottom and the lid.
  • the clamping device results in a constant volume increase, so that a volume-independent, constant suction is built up and maintained accordingly.
  • Drainage device easy to handle. Due to the swivel joint on the side of the reservoir on which the swivel joint is arranged, even when the clamping device is in a relaxed state, that is to say when the cover and base are pressed apart, the distance between cover and base is still small. after the
  • the patient can empty it by exerting a compressive force on the clamping device against the direction of the clamping force of the clamping device.
  • the cover and the base are moved towards one another counter to the compressive force of the clamping device.
  • the volume decreases and the liquid collected can over exit the valve or a check valve after removing the valve. Since the movement of the lid and base is a swiveling movement, the patient only has to exert less force. This simplifies the emptying of the reservoir and thus its handling. Furthermore, due to the pivoting movement, the relative change in distance is that of the swivel joint
  • a reading scale is attached to this position for reading the filling volume via the change in distance, this reading can be carried out with greater accuracy than is possible, for example, when the clamping device is unfolded in parallel without a swivel joint.
  • the swivel joint limits the pivoting movement of the cover and the bottom of the reservoir to one another to a maximum angle, preferably less than 90 °, for example 80 ° or 60 °.
  • This limitation can be done by a stop on or in the swivel joint or by the structure of the swivel joint itself.
  • the swivel joint is a spring, in particular a leg spring.
  • the swivel joint is a spring, in particular a leg spring.
  • the leg spring supports the pivoting movement of the bottom and / or lid and guides the function of a swivel.
  • Clamping device is less, the drainage device is even easier to handle. Applying the force to compress the reservoir is easier with a leg spring that counteracts this, since the patient who compresses the reservoir in the area of the clamping device can use the lever arm created by the cover and / or base .
  • the swivel joint is arranged outside the reservoir.
  • the structure of the drainage device can be simplified.
  • the swivel joint is enlarged even further from the point of application at which the patient has to compress the clamping device, and the force to be applied is thus further reduced.
  • the clamping device is formed by the material of the reservoir.
  • the clamping device is formed by a part of the reservoir and more preferably by the surrounding wall or a part of the surrounding wall.
  • the material of the reservoir, in particular the part by which the clamping device is formed consists of resilient material or has a geometry by means of which resilient properties are imparted.
  • the construction of the drainage device is further simplified by the fact that the clamping device is formed by the material of the reservoir. In particular, no other components on the reservoir are necessary apart from the swivel joint. This also simplifies the handling of the drainage device.
  • the clamping device preferably represents a bellows which forms at least part of the surrounding wall of the reservoir.
  • the bellows is preferably made of a rigid material. This allows the bellows to be deformed in accordance with the molded folds Bulging the reservoir is prevented or at least made difficult.
  • the bellows is compressed in the initial position of the clamping device and is thus biased towards the bottom and the lid. Since the material of the bellows is rigid, the compressive force becomes
  • the clamping device extends over the entire surrounding wall.
  • the bellows can extend over the entire circumference of the surrounding wall.
  • the bellows can preferably extend over the entire fleas of the reservoir.
  • the fleas of the reservoir are the distance between the lid and the bottom.
  • volume increase is defined in the reservoir, the can also
  • Suppression in the reservoir can be increased.
  • the suppression remains constant due to the combination of the clamping device and the swivel joint.
  • the clamping device can comprise a spring element in the form of a compression spring.
  • the spring element can be arranged inside or outside the reservoir.
  • the spring element is preferably a helical spring.
  • the clamping device can also have several
  • Spring elements can compress the force through which the lid and bottom
  • the drainage device has fastening elements for fastening a in the area of the clamping device Securing element on the drainage device.
  • fastening elements for fastening a in the area of the clamping device Securing element on the drainage device.
  • two fastening elements are provided, one fastening element in the area of the lid and the other fastening element in the area of the bottom of the
  • the fastening elements can each be provided on a cover plate, which is connected to the cover, and on a base plate, which is connected to the bottom of the reservoir.
  • the fastening element can be a projection or a recess.
  • a device is referred to as a securing element by which the reservoir can be held in the starting position.
  • the securing element can represent a material strip, hook or the like.
  • the reservoir can be held in the starting position.
  • the drainage device can be transported, stored and disposed of. Since the surrounding wall is compressed in the starting position, the space required for storage and disposal is minimized.
  • the drainage device has a cover plate on the cover of the reservoir and a base plate on the bottom.
  • the cover plate and the base plate are made of rigid material.
  • the cover plate can be made in one piece with the cover and the base plate can be made in one piece with the bottom.
  • the top plate can be attached to the lid and the bottom plate can be attached to the bottom.
  • the invention relates to a drainage set, the drainage set comprising at least one drainage device according to the invention. Advantages and features that have been and will be described with regard to the drainage device apply - if applicable - accordingly to the drainage set and vice versa.
  • the drainage set comprises a reading scale which is arranged or can be arranged on the reservoir and which allows the
  • the liquid level is on the side of the reservoir that is the swivel joint
  • the reading scale can be designed in the form of a plate on which the scale is applied.
  • the drainage set includes a
  • the securing element that can be connected to the fastening devices on the lid and base.
  • the securing element can be a strip of material in which openings are made, into which the fastening elements can be introduced in the form of projections of the cover and base. The distance between the openings thus defines the fleas that the drainage device in the
  • the securing element can also be a material strip with projections, which can be introduced into fastening elements in the form of cutouts on the lid and bottom of the reservoir.
  • the drainage set includes a
  • Hose element The hose element can be connected to the valve on the cover of the drainage device.
  • the other end of the tube element is connected to the catheter, which is preferably an implanted catheter.
  • a check valve is preferably provided in the hose element, which prevents liquids and air from coming back into the reservoir flow into the catheter and thus into the patient's body. This check valve is preferably designed in such a way that it prevents a flow of liquid in the direction of the catheter even at high pressures from the direction of the reservoir.
  • Figure 1 is a schematic exploded view of an embodiment of a drainage set according to the invention.
  • Figure 2 is a schematic side view of the drainage device of the
  • Figure 3 is a schematic perspective view of the reservoir of the
  • Figure 4 is a schematic side view of the drainage device of Figure 1 in the starting position.
  • the drainage set 5 shows an embodiment of a drainage set 5 according to the invention.
  • the drainage set 5 consists of a drainage device 1, one
  • the drainage device 1 consists of a reservoir 10, a cover plate 1010, a base plate 1020 and a swivel joint 12, which is shown in FIG.
  • Embodiment is formed by two springs 120 in the form of leg springs.
  • the reservoir 10 has a cover 101 with a valve 103 and a base 102 (not visible in FIG. 3) and a surrounding wall 105 which extends between the cover 101 and the base 102.
  • the surrounding wall 105 is deformable and is shown in that in the figures
  • Embodiment completely formed by a bellows 1000.
  • the reservoir 10 has an oval cross section.
  • the valve 103 is introduced in the cover 101 and in the illustrated embodiment in particular in the dome 104 of the cover 101 and extends from there upwards.
  • the swivel joint 12 is formed by two springs 120 in the form of leg springs which are arranged parallel to one another.
  • the axes of rotation of the leg springs lie in a line.
  • One leg of each of the springs 120 engages the lid 101 of the reservoir and the other leg of each of the springs 120 engages the bottom 102 of the reservoir 10.
  • the swivel joint 12 formed by the springs 120 connects the lid 101 and the bottom 102 of the reservoir 10 to one another.
  • the springs 120 are on one side of the
  • Reservoirs 10 arranged and thus connect the bottom 101 and the lid 102 of the reservoir 10 on one side of the surrounding wall 105.
  • the cover plate 1010 is attached to the cover 101 of the reservoir 10.
  • the cover 101 of the reservoir 10 has, for example, a dome 104, shown schematically in FIG. 3.
  • a corresponding recess (not shown) is made in the cover plate 1010 in the underside, in which the tip 104 engages and latches.
  • the cover plate 1010 has grooves 1012 for receiving the upper legs of the leg springs 120. The upper legs of the leg springs 120, which form the pivot joint 12, are thus between the cover 101 and the
  • Cover plate 1010 of the reservoir 10 arranged and act through the fixed
  • the bottom plate 1020 is attached to the bottom 102 of the reservoir 10.
  • the bottom 102 of the reservoir 10 has, for example, a dome (not visible) corresponding to the dome 104 shown on the cover 101 in FIG. 3.
  • a corresponding recess 1023 is made in the top, into which the dome engages and latches.
  • the base plate 1020 has grooves 1022 for receiving the lower legs of the
  • leg springs 120 on.
  • the lower legs of the leg springs 120 which form the swivel joint 12, are thus arranged between the base 102 and the base plate 1020 of the reservoir 10 and act on the base 102 and thus the reservoir 10 through the fixed connection of the base plate 1020 and the base 102 .
  • a clamping device 100 is arranged between the cover 101 and the bottom 102 of the reservoir 10.
  • the jig 100 is supported by a portion of the
  • the clamping device 100 is formed by the bellows 1000.
  • Securing element 3 is provided.
  • Bottom plate 1020 or the cover plate 1010 extends in the direction of the surface to the outside.
  • the securing element 3 can be fastened to these fastening elements 1011, 1021.
  • the securing element 3 has two openings, in each of which one of the fastening devices 1011, 1021 can engage.
  • the drainage device 1 is shown in an initial position. In this position, the lid 101 and the bottom 102 of the reservoir 10 are parallel to one another and a short distance from one another.
  • the base plate 1020 and the cover plate 1010 are parallel to one another.
  • the surrounding wall 105 of the reservoir 10 lies compressed between the bottom 102 and the cover 101.
  • the bellows 1000 which forms the surrounding wall 105, is compressed.
  • the leg springs 120 are in the
  • FIG. 2 shows the drainage device 1 in the end position.
  • the leg springs 120 are relaxed and there is an angle a of, for example, 70 ° between the legs of each spring 120.
  • the clamping device 100 that is to say the part of the bellows 1000 which lies opposite the leg springs 120, is also relaxed.
  • the folds of the bellows 1000 are stretched in the region of the clamping device 100.
  • the folds of the bellows 1000 are further compressed in the region of the leg springs 120.
  • a hose element 2 is attached to the valve 103 on the cover 101 of the reservoir 10, in which a further check valve (not shown) can be provided.
  • the drainage device 1 is preferably delivered in the starting position.
  • valve 103 can be closed with a detachable cap (not shown). The patient can remove the cap and the
  • the drainage device 1 Attachs the drainage device 1 to the tube element 2 and above it to the implanted permanent catheter (not shown) or, in the case of drainage of, for example, blood or urine, to a temporarily inserted catheter.
  • the patient puts the hose element 2 on the valve 103 on the lid 101 of the reservoir 10.
  • the securing element 3 is removed from the fastening elements 1011, 1021 of the lid 101 and bottom 102.
  • the spring force of the leg springs 120 and the tensioning force of the compressed bellows 1000 in the area of the clamping device 100 can move the cover 101 and base 102 away from one another.
  • the base 102 and cover 101 execute a pivoting movement relative to one another, that is to say the drainage device 1 is opened.
  • the reservoir 10 is spanned. This clamping and there is a constant increase in volume inside the reservoir 10.
  • the bellows 1000 are not clamped further.
  • the movement of the cover 101 and the bottom 102 relative to one another and thus the clamping of the bellows 1000 is limited by the leg springs 12.
  • the patient can separate the hose element 2 from the valve 103 of the drainage device 1.
  • the drainage device 1 can be emptied in this separated state.
  • the clamping device 100 can be applied to the area of the cover 101 that lies opposite the pivot joint 12
  • the contents of the reservoir 10 exerts pressure on the valve 103 of the drainage device 1 from the inside. If the pressure is sufficiently high, the contents of the
  • valve 103 is designed as a non-return valve, this is removed, for example cut off, before the patient applies the force to the area of the cover 101 which is opposite the swivel joint 12.
  • the securing element 3 can be fastened to the lid 101 and bottom 102 and the drainage device 1 can thus be held in the starting position. In this position, the drainage device 1 can be disposed of, with only a small space requirement.
  • the present invention thus creates a drainage device with which large-volume effusions or large amounts of other body fluids can be drained off with constant suction and increased flow rates.
  • a reservoir for the active drainage of liquids from the abdominal (or pleura) space is created, in which an essentially constant and volume-independent suppression is generated.
  • the suppression is generated by a mechanical spring system.
  • the spring system preferably comprises at least one bellows.
  • the spring system preferably has an additional arrangement for generating a mechanical one
  • a spring for example a leg spring, spiral spring,
  • Lamellar spring or the like.
  • the spring can also be used as a return spring be designated.
  • This arrangement for generating a restoring force is preferably arranged outside the liquid collecting space, that is to say the reservoir.
  • the reservoir preferably has a check valve that prevents air or effusion from flowing back into the body.
  • a solution according to the invention provides, in particular, for the use of a prestressed spring system in which, after an initial securing has been released, the spring system, in particular the securing element, moves away from the
  • Catheter connection tube can be referred to, which ensures that the effluent is connected to the effusion and sealed in an airtight manner.
  • the absolute drainage time is the integral of the flow rate. It has been shown that with the present invention one of the vacuum drainage
  • the present invention thus has a number of advantages over systems based on negative gas pressure due to the hyberbolic pV characteristic of these systems.
  • the invention also has a number of advantages over gravity bags.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • External Artificial Organs (AREA)

Abstract

La présente invention concerne un dispositif de drainage destiné à un drainage actif, qui comprend : - un réservoir (10) muni d'un couvercle (101), d'un fond (102), d'une paroi périphérique (105) s'étendant entre le couvercle (101) et le fond (102) et qui est élastiquement déformable, ainsi que d'une valve (103) sur le couvercle (101), - au moins une charnière (12) qui relie ensemble le couvercle (101) et le fond (102) du réservoir (10) d'un côté de la paroi périphérique (105), - au moins un dispositif d'écartement de force (100) qui est disposé sur un côté de la paroi périphérique (105), qui se situe à l'opposé du côté sur lequel est disposée la charnière (12), entre le couvercle (101) et le fond (102) du réservoir (10) ; dans une position initiale du dispositif de drainage (1), la paroi périphérique (105) est comprimée entre le couvercle (101) et le fond (102) et le dispositif d'écartement de force (100) dans la position initiale du dispositif de drainage (1) est précontraint dans la direction du couvercle (101) et du fond (102). L'invention concerne en outre un ensemble de drainage (5) comprenant ce dispositif de drainage (1).
PCT/EP2019/073074 2018-08-30 2019-08-29 Dispositif de drainage et ensemble de drainage Ceased WO2020043817A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018121173.2A DE102018121173A1 (de) 2018-08-30 2018-08-30 Drainagevorrichtung und Drainageset
DE202018104961.5U DE202018104961U1 (de) 2018-08-30 2018-08-30 Drainagevorrichtung und Drainageset
DE202018104961.5 2018-08-30
DE102018121173.2 2018-08-30

Publications (1)

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WO2020043817A1 true WO2020043817A1 (fr) 2020-03-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119925736A (zh) * 2025-04-08 2025-05-06 广州医太通生物科技有限公司 一种可调的脑室外引流装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1766217B1 (de) * 1967-05-12 1970-09-24 Protek Ag Automatische Saug-Drainage-Vorrichtung
US4573992A (en) * 1982-05-17 1986-03-04 Solco Basel Ag Apparatus for receiving and reinfusing blood
US4981474A (en) * 1988-02-16 1991-01-01 Baxter Travenol Laboratories, Inc. Body fluid drainage device
US9795722B2 (en) * 2008-07-11 2017-10-24 Kci Licensing, Inc. Manually-actuated, reduced-pressure systems for treating wounds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1766217B1 (de) * 1967-05-12 1970-09-24 Protek Ag Automatische Saug-Drainage-Vorrichtung
US4573992A (en) * 1982-05-17 1986-03-04 Solco Basel Ag Apparatus for receiving and reinfusing blood
US4981474A (en) * 1988-02-16 1991-01-01 Baxter Travenol Laboratories, Inc. Body fluid drainage device
US9795722B2 (en) * 2008-07-11 2017-10-24 Kci Licensing, Inc. Manually-actuated, reduced-pressure systems for treating wounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119925736A (zh) * 2025-04-08 2025-05-06 广州医太通生物科技有限公司 一种可调的脑室外引流装置

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