EP3099343A1 - Thoraxdrainagevorrichtung - Google Patents
ThoraxdrainagevorrichtungInfo
- Publication number
- EP3099343A1 EP3099343A1 EP15703500.7A EP15703500A EP3099343A1 EP 3099343 A1 EP3099343 A1 EP 3099343A1 EP 15703500 A EP15703500 A EP 15703500A EP 3099343 A1 EP3099343 A1 EP 3099343A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- drainage device
- patient
- interior
- collection container
- 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.)
- Withdrawn
Links
- 210000000038 chest Anatomy 0.000 title claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 97
- 210000003281 pleural cavity Anatomy 0.000 claims abstract description 52
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 7
- 239000012528 membrane Substances 0.000 claims description 35
- 238000013016 damping Methods 0.000 claims description 21
- 230000028327 secretion Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 210000004072 lung Anatomy 0.000 abstract description 46
- 230000006378 damage Effects 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 210000004379 membrane Anatomy 0.000 description 32
- 210000000115 thoracic cavity Anatomy 0.000 description 7
- 230000035876 healing Effects 0.000 description 5
- 210000004224 pleura Anatomy 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 3
- 201000003144 pneumothorax Diseases 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 206010016717 Fistula Diseases 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003890 fistula Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 206010021079 Hypopnoea Diseases 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003601 intercostal effect Effects 0.000 description 1
- 210000002976 pectoralis muscle Anatomy 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000004911 serous fluid Anatomy 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
-
- 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
- A61M1/74—Suction control
-
- 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
- A61M1/74—Suction control
- A61M1/743—Suction control by changing the cross-section of the line, e.g. flow regulating 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
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
- A61M1/61—Two- or three-bottle systems for underwater drainage, e.g. for chest cavity drainage
-
- 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
- A61M2205/3331—Pressure; Flow
- A61M2205/3344—Measuring or controlling pressure at the body treatment site
-
- 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
-
- 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
- A61M2230/00—Measuring parameters of the user
- A61M2230/40—Respiratory characteristics
- A61M2230/42—Rate
Definitions
- the present invention relates to a chest drainage device, a chamber for use in such a device, and a chest drainage method.
- the thorax drainage serves to convey blood, secretions or air from the pleural cavity, also called the pleural cavity.
- the pleural space is the space between the lung pleura (pleura pulmonalis) of the lungs and the pleura (pleura parietalis).
- the pleural space is filled with a serous fluid, physiologically a relative negative pressure to the outside air prevails, which still increases when inhaled.
- the lung must follow inhalation of the active expanse of chest muscles and the diaphragm. If the relative negative pressure in the pleural space is removed, e.g. in an operation or an accident, the lungs no longer follow the expanding thorax when inhaled.
- the defect leading to entry of air into the pleural space is generally called air fistula.
- the chest tube is used to maintain or restore the physiological negative pressure.
- the thorax and pleura are opened through an intercostal space, a drainage tube is inserted and finally a controlled suction is created to drain the pleural space.
- the most common use of drainage is in the context of operations where the chest needs to be opened.
- Various thoracic drainage devices are known in the art. As is shown in FIG. 1, they usually have a suction pump 1 operated with an electric motor or a wall vacuum, which is connected to a fluid collecting container 3 via a suction line 2 and which generates a negative pressure in this fluid collecting container 3 , From the fluid collecting container 3, a drainage tube 4 leads to the pleural cavity P to suck fluid from the pleural cavity P into the fluid collecting container.
- US 5 738 656 discloses a drainage device having a drainage line and an auxiliary line, by means of which the drainage tube can be rinsed and the suction pressure can be controlled.
- WO 2009/005424 describes a drainage device in which the negative pressure in the fluid collecting container is controlled by means of a sensor, wherein the sensor is arranged in the suction line leading to the suction pump.
- WO 2012/162848 proposes an adaptive algorithm for chest drainage therapy, wherein a suitable size for the air fistula is determined and the vacuum generated by the suction pump is regulated as a function of this size.
- US 6 261 276 discloses a manually operated chest drainage device with a bellows-shaped fluid collection container. This bellows serves as a vacuum pump and at the same time as an indicator of the negative pressure generated in the fluid collecting container.
- US 8 177 763 discloses a drainage device having a vacuum chamber connected to a vacuum source and a fluid collection reservoir in fluid communication with the vacuum chamber via a hydrophobic membrane. If the drainage tube is removed from the pleural cavity at the end of treatment, there is a risk of overstretching the lungs, which can lead to pneumothorax. This is due to a sudden increase in the pressure amplitude during deep inhalation, ie a greatly increased negative pressure in the pleural space, which also affects the lungs overstretched.
- a thoracic drainage device having the features of patent claim 1, a chamber for use in such a thoracic drainage device having the features of patent claim 16 and a method for thoracic drainage having the features of patent claim 17.
- the inventive chest drainage device for suctioning fluids from a pleural space of a patient by means of negative pressure has a fluid collection container for collecting the extracted fluids and a drainage tube for connecting the fluid collection container to the pleural space of the patient.
- the fluid collection container is connectable to a vacuum source to create a negative pressure in the fluid collection container.
- the thoracic drainage device has an adjustable means for damping pressure differences during the breathing of the patient, wherein this device is adjustable independently of a suction power of the vacuum source.
- the means for damping pressure differences is a means for adjusting an air return to the pleural space.
- the hardness or flexibility of the thorax system can be adjusted.
- the expansion of the lung and thus the damping of the pressure differences in the pleural space depends on the possible amount of air return into the pleural space.
- the air return flow can be set manually or automatically.
- the automatic adjustment can be regulated in accordance with a sensor value. That the adjustment is not made for a longer period of time, e.g. several hours or days, left the same. Rather, it is constantly controlled to also dampen sudden pressure differential increases, e.g. if the patient overworks or inadvertently inhales too deeply.
- the sensor value is preferably a pressure detected in the container, in the drainage tube or in the pleural space.
- the device is located for damping pressure differences between secretion collection container and suction source or in the housing of the suction source or in or on the secretion collection container or in or on the drainage tube.
- the device for damping pressure differences on a chamber whose stiffness is adjustable.
- stiffness adjustability is meant here the stiffness of the walls, the change in the volume available for air return and also the supply of external air into the chamber. This will be explained below with reference to some preferred embodiments.
- the device for damping pressure differences on a chamber with an interior and with an opening leading to the patient is formed by rigid walls except for a flexible membrane embedded in a wall of the chamber, the flexibility of the membrane being adjustable.
- the membrane may be spring-loaded, which avoids excessive expansion of the membrane.
- the chamber is formed by rigid walls except for a part of a wall-forming spring-loaded piston whose position is adjustable relative to the interior.
- the chamber is formed by rigid walls, wherein in the chamber, an insert container is arranged, which can be filled from the outside with an incompressible fluid in order to adjust the volume of the interior adjustable.
- the chamber is formed by rigid walls except for a part of a wall-forming flexible bellows with an interior of the chamber open towards the interior, wherein the volume of the interior of the bellows is adjustable.
- a first chamber having an interior and an opening leading to the patient, wherein the first chamber is formed by rigid walls, wherein a wall has a closable first air exchange opening. This is used for connection to a second chamber, which is formed closed except for a second air exchange opening, wherein the first chamber with the second chamber via the two air exchange openings in air-communicating connection can be brought.
- the chamber is formed by rigid walls, the chamber having a filling opening which is independent of any suction opening associated with the suction source and through which air can be inflated and pumped into the chamber for the purpose of adjusting the damping of the breathing.
- the chamber is formed by rigid walls, wherein the chamber has an outwardly leading valve which opens to the outside in accordance with a detected negative pressure.
- the chamber or the first chamber is formed by the fluid collection container. It is alternatively arranged in or on this. Alternatively or additionally, it may also be connected via a branch line to the drainage tube or arranged between the suction source and the fluid collection container.
- Figure 1 is a schematic representation of a lung associated with it
- Figure 2a is a schematic representation of a lung during an exhalation in existing chest tube
- FIG. 2b shows the change in the negative pressure in the pleural space during the exhalation according to FIG. 2a;
- FIG. 3 a is a schematic representation of a lung during inspiration during existing chest drainage
- FIG. 3 b shows the change in the negative pressure in the pleural space during the inhalation according to FIG. 3 a;
- Figure 4a is a schematic representation of a lung during an exhalation without
- FIG. 4b shows the change in the negative pressure in the pleural space during the exhalation according to FIG. 4a;
- FIG. 5 a shows a schematic representation of a lung during inspiration during existing chest drainage
- FIG. 5b shows the change in the negative pressure in the pleural space during inhalation according to FIG. 5 a;
- FIG. 6 a a schematic representation of a lung during a thoracic drainage according to the prior art
- Figure 6b is a schematic representation of the pressure in the pleural space during the Chest drainage according to FIG. 6a as a function of time; a schematic representation of the lung according to Figure 6a after completion of the chest tube according to the prior art;
- FIG. 7a a schematic representation of the pressure in the pleural space after completion of the chest tube according to Figure 7a as a function of time; a schematic representation of a lung with a connected according to the invention thorax drainage device in a first embodiment; a schematic representation of a lung during a chest drain with a erfmdungsgefflessen fluid collection container;
- FIG. 9a a schematic representation of the pressure in the pleural space during the inventive chest tube according to Figure 9a as a function of time; a schematic representation of a lung after completion of a chest tube with a erfmdungsgefflessen fluid collection container;
- FIG. 10a a schematic representation of the pressure in the pleural space after completion of the inventive chest tube according to Figure 10a as a function of time; a schematic representation of a erfmdungsgefflessen fluid collection container in a first embodiment; a schematic representation of a erfmdungsgefflessen fluid collection container in a second embodiment; a schematic representation of a erfmdungsgefflessen fluid collection container in a third Aus spalirungsform;
- FIG. 14 is a schematic representation of a fluid container according to the invention in a fourth embodiment; a schematic representation of an inventive fluid bladder container in a fifth embodiment; a schematic representation of a fluid collecting container according to the invention in a sixth embodiment; a schematic representation of a fluid collecting container according to the invention in a seventh embodiment; a schematic representation of a fluid collecting container according to the invention in an eighth Ausrhakungsform; a schematic representation of a fluid collecting container according to the invention in a ninth embodiment; a schematic representation of the pressure in the pleural space during the inventive chest tube when using one of the fluid collection container according to Figures 18 and 19 as a function of time; a schematic representation of a fluid collecting container according to the invention in a tenth embodiment; a schematic representation of the pressure in the pleural space during the inventive chest tube when using the fluid collection container according to Figure 21 as a function of time; a schematic representation of a lung with an associated inventive chest drainage device in a second embodiment;
- Figure 24a is a schematic representation of a lung with an associated According to the invention, a thorax drainage device in a third embodiment and
- Figure 24b is a more concrete representation of a variant according to the embodiment of Figure 24a.
- FIG. 1 shows a lung during a thorax drainage.
- FIG. 2a shows the situation during exhalation.
- the drainage tube 4 and the fluid collection container 3 are shown in this and the following figures. However, this is of course during the drainage with the fluid collection container 3 via the suction line (shown here only with a simple opening 2).
- the lung L decreases, as shown schematically by the double arrow in Figure 2a.
- the double arrow visualizes the stretching of the lungs.
- the absolute pressure in the pleural space decreases, i. the relative pressure difference to the atmospheric pressure becomes lower. This is shown in Figure 2b with the arrow O.
- the negative pressure prevailing in the pleural space increases in the direction of atmospheric pressure. In this example it reaches -0.5 kPa.
- FIG. 4a shows the situation during inhalation without connection to the thorax drainage. Since no air can be drawn from the container into the pleural space, the absolute negative pressure value in the pleural space P increases more strongly. In this example to -5.5 kPa.
- the dashed curve in Figure 5b shows the expansion during the chest tube. The lung L can thus expand more without the chest tube.
- FIGS. 6a and 6b again show the situation during the thorax drainage, FIGS. 7a and 7b after completion of the thorax drainage.
- FIG. 7 a shows a pressure gauge M with which the pressure in the pleural space is measured. ⁇ denotes the pressure difference between inhalation and exhalation. In this case, p stands for the pressure in the pleural space and t for the time in this and analogous representation.
- FIG. 8 therefore shows an inventive thorax drainage device according to a first embodiment.
- This device also has a suction device, preferably a suction or vacuum pump 1, which is connected via a suction line with a fluid collecting container 3. From the fluid collection container 3, a drainage tube 4 leads to the pleural space P of a patient.
- the fluid collection container 3 may also be connected to an in-house vacuum system of the hospital.
- the fluid collection container 3 is rigid. It can consist of one or more chambers. The at least one chamber may be provided with ribs to limit sloshing of the aspirated fluid.
- the fluid collection container 3 has a drainage opening 30 for connection to the drainage tube 4. It also has a suction opening 2 for connection to the suction pump 1.
- the suction opening 2 is preferably provided with a check valve and / or a bacterial filter to to protect the suction pump 1 from contamination.
- Such containers are well known in the art.
- the fluid collection container 3 according to the invention may also be smaller than set forth in the prior art. According to the invention, this fluid collecting container 2, which is designed to be rigid and has an unchangeable internal volume, is provided with a device 5 with which the hardness of the fluid collecting container 2 can be adjusted. The system is set soft shortly after the operation or at the beginning of the drainage and is towards the end of the drainage harder and stiffer, so that the lungs can get used to larger expansions.
- the device comprises a self-contained chamber with an opening leading to the patient.
- this device 5 has a membrane 50, which forms part of the outer wall of the fluid collecting container 3.
- the fluid collection container thus forms the above-mentioned chamber.
- This membrane 50 is fluid-tight, in particular airtight, formed. It can be stretched by means of a spring 51, whereby its hardness, i. their own spring force, lets adjust.
- Figure 9a three positions 1, 2, 3 of the spring 51 and thus the membrane 50 are shown schematically.
- FIG. 9b shows how the pressure curve in the pleural space changes as a function of this spring setting. If on day 1 the spring 51 is in position 3, the membrane 50 is hardly stretched and very soft.
- the fluid collection container 3 changes at increased pressure difference thanks to the flexible membrane 50, the volume, so that sufficient air can enter the pleural space P and overstretching of the lung L is prevented.
- the membrane 50 is made somewhat stiffer by being more tensioned, for example, up to position 2.
- the drainage system is thereby altogether harder or stiffer, since the volume change of the fluid collection container 3 is limited.
- the negative pressure in the pleural space P can increase. This can be seen in Figure 9b in the area labeled "Day 2.”
- the lung L can thus expand somewhat more.
- the membrane 50 is even more tensioned and stiffened by the spring 51 in the position 1 according to Figure 9a is brought.
- the absolute negative pressure value in the pleural space P can increase even more, as can be seen in FIG.
- the load on the lung L is thus increased gradually until the drainage is removed.
- the increase can be done daily as described in this example. However, it can also take place at other intervals and / or be interrupted by phases of load reduction. This is decided according to the healing process of the individual patient by the attending medical staff. According to the invention, it is avoided that a sudden overstretching of the lung L can take place upon termination and removal of the drainage.
- FIG. 11 shows the abovementioned first embodiment of the fluid collecting container 3 according to the invention.
- the reference numeral 30 denotes the opening for connection to the drainage tube 4, the reference numeral 2, the suction port for connection to the suction pump 1 and the suction line.
- the membrane 50 is attached in a wall 31 of the otherwise rigid and formed with immutable internal volume fluid collection container 3, the membrane 50 is attached.
- the membrane 50 may be rectangular, triangular, round, oval or in any other shape. It is fluid-tight. Preferably, it is made of silicone.
- the membrane 50 is here held along its outer circumference in the wall 31 and fixed. It can for example be glued, welded or made in one piece with this in the multi-injection molding process.
- the spring 51 is preferably fixedly connected to the membrane 50 and adjustable via a displaceable armature 52.
- the armature 52 is fixable in position relative to the container 3 and relative to the surface of the membrane 50 slidably. This is shown in the figure with the double arrow. This also applies to the following examples, which have an anchor or other fixation.
- the armature 52 may be formed, for example, as a slider or knob or connected to such a control element.
- it is a part of an additional body arranged on the container.
- Such an additional body is provided in Figure 8 by the reference numeral 5.
- the membrane 50 shown in dashed line in Fig. 11 shows the position of the membrane upon inhalation, the membrane 50 shown in solid lines the position of exhalation.
- FIG. 12 shows a second embodiment.
- the membrane 50 is connected via a rigid connecting rod 520 with the adjustable in the direction perpendicular to the membrane surface anchor 52.
- the membrane 50 can be fixed in various stretched positions to adjust their spring force and hardness or flexibility. The further the membrane 50 is pulled away from the container 3 and stretched, the harder is the overall system.
- the membrane shown in dashed lines again shows its position when inhaled, the membrane 50 shown in solid lines shows the position when exhaling.
- FIG. 13 shows a third embodiment.
- the membrane 50 is here adjustable parallel to its surface; i.e. it is stretched or relaxed parallel to its surface. This is indicated by the double arrow. This, too, can be made possible by actuating means such as, for example, a slide or a rotary knob. The same applies here, the more the membrane is stretched, the harder or stiffer the overall system.
- the membrane shown in dashed lines again shows the situation when inhaled.
- a fastening element 32 with which the membrane 50 is held in the wall 31 of the container 3, is displaceable, so that the membrane 50 is stretched to different degrees.
- the fastener 32 may be formed as shown here as a slider or carriage. It can also be opened and closed, for example in the form of a panel. Otherwise, the same applies as with the Embodiment according to FIG. 13.
- part of a wall 31 of the container 3 is designed to be rigid but displaceable.
- This part forms a piston 54, which is held in a piston housing 55 open to the atmosphere.
- the piston 54 is sealed to the outside.
- This piston 54 is in turn connected via the spring 51 with an adjustable armature 52.
- the displaceability of the piston 54 and thus the hardness or flexibility of the container 3 can in turn be adjusted by the position of the armature 52.
- the spring 51 here allows the flexibility of the container 3 during inhalation and exhalation. That the piston 54 moves in the direction of the interior of the container 3, when the suction force of the vacuum in the interior is greater than the spring force when inhaled.
- the position of the armature 52 influences the hardness of the system.
- the embodiments described so far can be arranged on the container 3. They can also be formed in a separate intermediate container between container 3 and drainage tube 4 or between suction pump 1 and container 3.
- the system hardness of the drainage device is likewise produced by changing the container volume, but without designing the fluid collection container 3 itself partially flexible.
- a flexible insert container 57 is arranged. It can be a bag, for example.
- This insert container is connected via a filling opening 571 with the outside of the fluid collection container 3.
- the filling opening 571 can be closed with a closure 570.
- An incompressible fluid for example water, can be introduced into this feed container 57 in a predetermined amount so that the feed container 57 assumes a predefined volume within the fluid collecting container 3.
- the available for the pressure equalization with the Pleuraspalt air volume of the fluid collection container 3 is smaller and the system is harder.
- the reservoir 57 will be filled more to prepare the lungs for completion of the drainage.
- the fluid collection container 3 has an inner dividing wall 33, which delimits the insert container 57 from the rest of the interior. In this case, an air exchange between the subregions in the interior of the fluid collection container 3 is still possible.
- This partition wall 33 is optional.
- the insert container 57 may also be arranged in another or the single interior of the fluid collection container 3.
- an expansion tank 58 is present, which is connected to the fluid collecting tank 3 via an air exchange opening 34.
- the expansion tank 58 can be plugged or otherwise attached to the fluid collection tank 3.
- the expansion tank 58 like the fluid collection tank 3, may be rigid and rigid. Preferably, however, it is designed to be flexible, so that its volume at least partially adapts to the negative pressure prevailing in the interior of the container. At the beginning of the drainage, such an expansion tank is present. It can be replaced by a smaller expansion tank during drainage. At the end of the drainage, only the fluid collection container 3 is preferably used, the air exchange opening 34 then being hermetically sealed.
- FIGS. 18 and 19 embodiments are illustrated which allow rapid active regulation of the negative pressure in the pleural space.
- a bellows 59 is arranged which is open against the interior of the fluid collection container 3 and closed against the environment.
- This bellows 59 has a rigid wall 590, which can be moved by means of an armature 52 to the interior of the container 3 and away from it. As a result, the inner volume of the bellows 59 can be changed.
- the movement of the armature 52 and the bellows 59 can be done manually, the wall 590 is fixed depending on the healing stage at a different distance from the interior and thus the hardness of the drainage system is set. The closer the wall 590 is to the fluid collection container 3 and thus the smaller the internal volume of the bellows 59, the harder the overall system.
- Active regulation can be achieved by connecting the armature to an electric motor and moving it via a controller. He can depend on the healing process be brought to a fixed position and remain there for several hours. Preferably, however, the pressure in the drainage tube or an auxiliary line parallel thereto or in the fluid collection container is monitored. The obtained sensor value gives information about the pressure change. The armature is moved in accordance with this monitored pressure change. In other words, if the inhalation is too strong and if a pressure difference peak is to be expected, the wall 590 is moved towards the container 3 and the bellows 59 is reduced. Air is conveyed from the fluid collection container 3 to the Pleuraspalt P. This is shown in dashed lines in FIG. As a result, the differential pressure peaks shown by dashed lines in FIG. 20 can be reduced during inhalation or brought about selectively, as can be seen in comparison with the more strongly damped pressure curve curve shown with a solid line.
- a flexible insert container 57 here a balloon, is arranged in the fluid collection container 3.
- the insert container 57 has an outwardly facing opening 571, which is provided in this case with a valve, not shown. Through this opening 571 air is blown into the feed tank 57 and sucked off, preferably also in accordance with a measured pressure change and preferably pneumatically. The air is blown in when too deeply inhaled and when the situation normalizes, i. sucked again if necessary with again shallow breathing. By selecting the amount of air extracted or injected, pressure difference peaks can also be brought about.
- An insert container 57 is not mandatory. The air can also be injected directly into the fluid collection container 3 and sucked out of it.
- a manually or electronically actuatable valve 53 is present, which opens at a predefined limit pressure in the interior of the fluid collecting container 3. This allows air to flow from the outside into the fluid collection container 3 and reduce the pressure difference with respect to the atmosphere. With increasing healing of the lung, the limit pressure is adjusted differently, so that the valve 53 opens only at a greater pressure difference.
- the valve 53 may, for example, on the first day at a prevailing in the container 3 negative pressure of -2 kPa open on the second day at -4 kPa and on the third day at -6 kPa.
- FIG. 22 shows the pressure curve in the pleural space during inhalation and exhalation, which reflects the result of such a valve setting.
- FIGS. 11 to 15 and 21 can likewise be actuated automatically by analogy. They can also be provided with a control in order to achieve an automatic active regulation of the hardness of the drainage system in accordance with pressure measurement values in order to obtain the result according to FIG.
- This active control is advantageous not only in preparation for completion of chest drainage. It also serves to prevent abrupt spikes in case of unintentional, too deep inhalation, and to increase the risk of unprepared drainage, e.g. when disconnecting the drainage tube or unintended interruption of the suction pump to avoid. If a differential pressure spike threatens inhalation, the overall system is softened to smooth the pressure differential peak in the pleural space and prevent excessive lung expansion.
- the drainage tube 4 may be provided with a branch line 7, which leads to such a reservoir 6 or valve.
- a branch line 7 which leads to such a reservoir 6 or valve.
- Figure 24a A specific arrangement in a housing 10 of a pump 1 is shown in Figure 24b, wherein the device 5 is shown for damping, but not a surrounding this housing 6.
- the same parts are shown with the same reference numerals.
- the examples described here also work with regulated suction pumps, which monitor and control the negative pressure in the drainage system. For example, this negative pressure can be monitored in the cavity, ie in the pleural space, in the drainage tube, in an auxiliary line or in the fluid collection container. The reason for this is that the adjustments made by the suction pump are too slow to compensate for the pressure changes between inhalation and exhalation.
- the adjustable hardness of the system according to the invention makes possible static and dynamic compensations, which are fast enough to train the lungs so that no abrupt differential pressures occur when the drainage is terminated and the lung is thus spared.
- the erfmdungsgemässe system prevents an abrupt expansion of the lungs and thus allows optimal training of the lungs for the time of completion of a chest tube.
Landscapes
- 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
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH00123/14A CH709183A1 (de) | 2014-01-30 | 2014-01-30 | Thoraxdrainagevorrichtung. |
| PCT/EP2015/051557 WO2015113949A1 (de) | 2014-01-30 | 2015-01-27 | Thoraxdrainagevorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3099343A1 true EP3099343A1 (de) | 2016-12-07 |
Family
ID=50068744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15703500.7A Withdrawn EP3099343A1 (de) | 2014-01-30 | 2015-01-27 | Thoraxdrainagevorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20170007749A1 (de) |
| EP (1) | EP3099343A1 (de) |
| JP (1) | JP6484638B2 (de) |
| CN (1) | CN105939737B (de) |
| CH (1) | CH709183A1 (de) |
| WO (1) | WO2015113949A1 (de) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2015323899B2 (en) | 2014-09-29 | 2019-09-26 | Centese, Inc | Devices and methods for managing chest drainage |
| AT517713B1 (de) * | 2016-08-31 | 2017-04-15 | Ilic Petar | Vorrichtung zur Wunderstversorgung |
| US20190381220A1 (en) * | 2017-01-23 | 2019-12-19 | Kci Licensing, Inc. | Negative pressure systems for the management of pleural effusion |
| CN106823025B (zh) * | 2017-03-20 | 2018-11-16 | 上海市肺科医院 | 一种机械驱动式全肺切除术后引流装置 |
| CN107080863A (zh) * | 2017-04-25 | 2017-08-22 | 上海契斯特医疗科技公司 | 一种负压显示装置及负压引流装置 |
| CN111494733A (zh) * | 2018-02-05 | 2020-08-07 | 赵明洁 | 一种医用智能胸腔引流装置 |
| CN108398257A (zh) * | 2018-04-23 | 2018-08-14 | 黄葆华 | 一次性使用胸腔引流装置干封阀关闭性能测试设备 |
| SE546314C2 (en) * | 2020-10-19 | 2024-10-01 | Thoragen Ab | Improved body drainage apparatus |
| CN113181453A (zh) * | 2021-04-19 | 2021-07-30 | 宁波新跃医疗科技股份有限公司 | 负压抽吸设备 |
| US11986586B2 (en) * | 2021-09-17 | 2024-05-21 | Naoyuki Ishikita | Catheter for chest drainage and chest drainage system |
| CN115957119A (zh) * | 2021-10-09 | 2023-04-14 | 宁波新跃医疗科技股份有限公司 | 具有胸腔引流功能的负压呼吸机 |
| CN115957120A (zh) * | 2021-10-09 | 2023-04-14 | 宁波新跃医疗科技股份有限公司 | 负压呼吸机及负压辅助呼吸方法 |
| CN115957386A (zh) * | 2022-09-26 | 2023-04-14 | 无锡元昇医疗科技有限公司 | 一种胸腔积液智能引流装置 |
| CN115737962B (zh) * | 2022-11-08 | 2023-07-04 | 中国人民解放军空军军医大学 | 一种胸外科手术冲洗装置 |
| CN119792678B (zh) * | 2025-01-06 | 2025-10-21 | 中国人民解放军空军军医大学 | 一种气胸用自动抽气器 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738671A (en) * | 1980-06-06 | 1988-04-19 | C. R. Bard, Inc. | Chest drainage apparatus with check valve |
| US4439190A (en) * | 1981-04-27 | 1984-03-27 | Chesebrough-Pond's Inc. | Underwater drainage device |
| US4675011A (en) * | 1984-05-04 | 1987-06-23 | Bioresearch Inc. | Surgical drainage apparatus |
| US4715855A (en) * | 1984-08-20 | 1987-12-29 | Pfizer Hospital Products Group, Inc. | Dry bottle drainage system |
| US4710165A (en) * | 1985-09-16 | 1987-12-01 | Mcneil Charles B | Wearable, variable rate suction/collection device |
| ATE108669T1 (de) * | 1989-06-09 | 1994-08-15 | Sherwood Medical Co | Vorrichtung für die thoraxdrainage. |
| US5401262A (en) * | 1990-07-20 | 1995-03-28 | Atrium Medical Corporation | Fluid recovery system |
| US5261897A (en) * | 1990-12-04 | 1993-11-16 | Bioresearch, Inc. | Portable suction system |
| JPH07194691A (ja) * | 1993-12-28 | 1995-08-01 | Senko Ika Kogyo Kk | 高陰圧発生時の解消方法 |
| DE19517699C2 (de) * | 1995-05-13 | 1999-11-04 | Wilhelm Fleischmann | Vorrichtung zur Vakuumversiegelung einer Wunde |
| CN2484955Y (zh) * | 2001-03-24 | 2002-04-10 | 江门市人民医院 | 仿生可控式胸管 |
| US7976533B2 (en) * | 2003-12-22 | 2011-07-12 | Medela Holding Ag | Drainage apparatus and method |
| CN201015658Y (zh) * | 2007-02-02 | 2008-02-06 | 上海契斯特医疗科技公司 | 一种负压可调的胸腔封闭式引流水封瓶 |
| AT505614B1 (de) * | 2007-11-06 | 2009-03-15 | Walter Milacek | Medizinisches gerät in form eines katheters zum zu-, insbesondere jedoch abführen von fluid in, insbesondere aus körperhöhlen, insbesondere dem pleuraraum |
| CN101518660B (zh) * | 2008-06-05 | 2011-02-16 | 欧阳金生 | 无水静音胸腔闭式引流装置 |
| CN201248890Y (zh) * | 2008-08-19 | 2009-06-03 | 侯美青 | 一种便携带负压吸引的胸腔积液引流器 |
| CH703478A1 (de) * | 2010-07-30 | 2012-01-31 | Medela Holding Ag | Absaugpumpensystem. |
| CH705248A1 (de) * | 2011-07-07 | 2013-01-15 | Medela Holding Ag | Thoraxdrainagevorrichtung mit reduziertem Gegendruck. |
-
2014
- 2014-01-30 CH CH00123/14A patent/CH709183A1/de not_active Application Discontinuation
-
2015
- 2015-01-27 JP JP2016548061A patent/JP6484638B2/ja not_active Expired - Fee Related
- 2015-01-27 EP EP15703500.7A patent/EP3099343A1/de not_active Withdrawn
- 2015-01-27 WO PCT/EP2015/051557 patent/WO2015113949A1/de not_active Ceased
- 2015-01-27 US US15/112,670 patent/US20170007749A1/en not_active Abandoned
- 2015-01-27 CN CN201580006175.6A patent/CN105939737B/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2015113949A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CH709183A1 (de) | 2015-07-31 |
| CN105939737A (zh) | 2016-09-14 |
| JP6484638B2 (ja) | 2019-03-13 |
| US20170007749A1 (en) | 2017-01-12 |
| CN105939737B (zh) | 2018-05-18 |
| WO2015113949A1 (de) | 2015-08-06 |
| JP2017506936A (ja) | 2017-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3099343A1 (de) | Thoraxdrainagevorrichtung | |
| EP0825844A1 (de) | Vorrichtung zur vakuumversiegelung einer wunde | |
| EP3479860B1 (de) | Atemtherapiegerät | |
| DE2827648A1 (de) | Pneumatisch geregeltes druckentlastungsventil, insbesondere fuer medizinische anwendungen | |
| EP3377162B1 (de) | Vorrichtung zur dynamisch dichtenden okklusion oder raumfüllenden tamponade eines hohlorgans | |
| EP4271454B1 (de) | Beatmungsvorrichtung mit stoma-manschette | |
| DE102017009606A1 (de) | Verfahren und Vorrichtung zur Hochfrequenzbeatmung eines Patienten | |
| DE202010001611U1 (de) | Trachealkanüle | |
| DE102017208349A1 (de) | Exspirationsventilanordnung für eine Beatmungsvorrichtung mit Vorrichtung zur Aufnahme eines Drucksensors | |
| WO2008034751A1 (de) | Manschette einer beatmungsvorrichtung | |
| WO2018033225A1 (de) | Pneumatische steuervorrichtung | |
| EP2931343A1 (de) | Druckausgleichsvorrichtung | |
| EP2931345B1 (de) | Druckausgleichsballon und verfahren zu dessen herstellung | |
| DE102016109528A1 (de) | Verfahren und Vorrichtung zur Beatmung eines Patienten | |
| DE102017009603A1 (de) | Vorrichtung zum Beatmen eines Patienten | |
| WO2019228697A1 (de) | Beatmungsgerät und verfahren zum betrieb eines beatmungsgeräts | |
| EP3302599B1 (de) | Einrichtung zur drainage, insbesondere zur drainage eines chronischen subduralen hämatoms | |
| DE202011106582U1 (de) | Manschettenkammer zur Wundbehandlung | |
| DE202016100155U1 (de) | Unterdruckbehältnis | |
| DE2055049A1 (de) | Einrichtung zur beatmungssynchronen Abdichtung von Tuben und Kanülen | |
| DE102011052735A1 (de) | Medizinischer Drainageschlauch | |
| DE202017003898U1 (de) | Beatmungsfilter für ein Tracheostoma | |
| DE202014101628U1 (de) | Verschluss für ein Tracheostoma | |
| DE102015002995A1 (de) | Vorrichtung und Verfahren zur aspirationspräventiven dynamischen Dichtung der intubierten Trachea bei Patienten mit nicht-assisitierter und assistierter Spontanatmung | |
| DE202016001448U1 (de) | Tracheostomiekanäle mit Niederdruckmanschette und Absaugvorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20160725 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: EHLERT, HILMAR Inventor name: WALTI, MARTIN |
|
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20210803 |