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
  • 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
  • A61M15/00—Inhalators
• • 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
• • 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
  • A61M1/80—Suction pumps
  • A61M1/82—Membrane pumps, e.g. bulbs

Definitions

• the invention relates to a suction pump unit according to the preamble of patent claim 1 and to a fluid collecting container according to the preamble of patent claim 15.
• suction systems For aspiration of body fluids or secretions from body cavities or wounds usually stationary suction systems are used in the medical field, in particular in the Thoraxdramage. These suction systems essentially consist of a suction source, in particular a vacuum pump, a fluid or secretory collection container, a water lock arranged therebetween and connecting lines, namely a drainage line leading from the patient to the secretion container, a connecting line leading from the secretion container to the water lock and the water lock connected to the suction source vacuum line.
• US-A-6'352'525 discloses a portable pump unit which is intended to be suitable for thoro-drainage. It can be attached to the body of the patient and thus allows him to move freely and relatively unrestricted.
• a vacuum pump, an energy source, a vacuum chamber and a secretion collection container are integrated.
• the vacuum chamber is arranged in a first part, the secrete collecting container in a second part and the vacuum pump in a third part.
• the first and third part are arranged in the use position over the second part and releasably connected to each other and to the second part. Drainage connections or vacuum connections connect the corresponding parts with each other. This device is relatively complex and can also be poorly cleaned.
• WO 99/10024 describes a portable pump unit for chest drainage, which is connected via an external line with a likewise portable kidney-shaped secretion collection container. This device has the disadvantage that two separate units must be worn, which are also connected to each other via a hose.
• EP-A-1'184'043 discloses a small-sized suction pump, in particular for wound drainage, which has a collecting container for material to be aspirated and a lid, all components of the pump required for operation being integrated in the container lid.
• the inventive portable suction pump unit for aspirating body fluids and / or air has a pump unit housing with a pump unit and at least one secretion or fluid collection container detachably connected to this pump unit housing.
• the pump unit housing has a front wall, a rear wall and a side wall disposed between these two walls, wherein the front wall and the rear wall each have a wall edge, which project this side wall and wherein the fluid collecting container is held between these wall edges.
• the patient may carry the suction pump unit in a variety of ways. He can hang them on a band around his neck, fasten them to a belt or wear them on a band over his shoulder. If he is stationary, he can put the unit on a table or just hang himself on the bed.
• the fluid collection container is held between the wall edges and swung out.
• the container is pivotally held in a lower region and locked in an upper region with the pump unit housing.
• the container is completely removable from the housing.
• the replacement of the container is facilitated when the container is latched into the housing.
• the suction pump unit according to the invention is used for medical purposes. especially for thoracic drainage and wound drainage. However, other areas of application are possible, for example for aspirating body fluids during an operation or for liposuction.
• the device can always remain in operation and thus a permanent vacuum can be applied, which is actively maintained. This not only speeds healing but also lowers the cost of ownership as the device takes less time to be used and therefore leases less than conventional devices.
• the fluid collecting container has a secretion flange for connecting a patient-side drainage tube and a vacuum connection for connection to a suction pump.
• the container has an inner space which is subdivided by ribs, wherein the inner space is subdivided into at least one vacuum chamber and one secretion chamber, these two chambers being connected to one another via at least one narrow passage and wherein the vacuum connection in the vacuum chamber and the secretion connection in the Secretion chamber are arranged.
• the vacuum chamber and secretion chamber are not directly connected to each other but an intermediate chamber is interposed therebetween.
• an oblique lip in the upper region of the secretion chamber, below the vacuum chamber, there is additionally an oblique lip, which prevents a high sloshing of the fluid.
• Figure 1 is a perspective view of a erfmdungshielen extraction pump unit in a first embodiment
• FIG. 2 shows the suction pump unit according to FIG. 1 with an insight into the interior of the housing
• FIG. 3 shows the suction pump unit according to FIG. 1 with the fluid collection container partially swung out in a perspective view from a first side;
• FIG. 4 shows the suction pump unit according to FIG. 3 in a perspective view from a second side
• Figure 5 is a view of the suction pump unit according to Figure 1 from above;
• Figure 6 is a view of the inventive suction pump unit in a second embodiment from above;
• Figure 7 is a perspective view of an inventive adapter for a patient-side hose
• Figures 8 and 9 are perspective views of two parts of the housing in a third embodiment
• Figure 10 is a perspective view of a fluid collection container suitable for the housing according to Figures 8 and 9;
• Figure 11 is a perspective view of a first part of the fluid collection container according to Figure 10.
• FIG. 12 is a perspective view of a second part of the fluid collection container according to FIG. 10.
• FIGS. 1 and 2 show a first exemplary embodiment of the suction pump unit according to the invention. It essentially consists of a pump unit housing 1 with a pump unit 6 arranged therein and visible in FIG. 2 and at least one fluid collecting container 2. Preferably, precisely one fluid collecting container 2 is present.
• the pump unit 6 is used to generate the vacuum necessary for the suction.
• the fluid collection container 2 is connectable to the pump unit 6, so that in the container 2, the negative pressure can be generated.
• the collecting container 2 is connected via a suction tube or a secretion line 30 to a cavity or wound of the patient, from which the body fluid is to be sucked off, wherein the container 2 collects the extracted body fluid.
• the secretion line 30 lead to the patient, but also a measuring line 31, via which, for example, the pressure or the flow rate in the secretion line can be measured.
• a double-lumen patient tube 3 is used for this purpose, which contains both lines 30, 31.
• the hose 3 can, as shown here, be guided in a straight line from the housing 1. He can, however be arranged angled, or it can be used an angled adapter part, in which the tube 3 can be inserted.
• the hose 3 is attached to an adapter 7.
• This adapter is shown in detail in FIG. It is preferably made of plastic by means of injection molding. It has a double pipe connection piece 71 on or into which the double-lumen patient tube 3 can be inserted. At this pipe connection piece 71, a flange 70 is formed, which rests on the housing 1 and by means of which the adapter 7 in the housing 1 can be fastened, for example clamped, is.
• the housing-side part of the adapter 7 has an angled coupling part 72 for a housing-side secretion port 19 and a connecting part 73 for the measuring line 31 or measuring lines.
• the coupling part 72 opposite end 74 is formed closed.
• the pump unit 6 consists essentially of an electric motor 60, a storage element 61, here batteries, and a vacuum pump 62.
• the motor 60 is preferably attached flanged to the pump 62 and the vacuum pump 62 is preferably kept fixed to the housing 1.
• Suitable pumps are all known pumps which are designed to be sufficiently small and which provide the desired performance for the corresponding application.
• the flow rate per time is preferably about 5 l / min.
• a double-acting diaphragm pump is used.
• the unit 6 is arranged approximately centrally or centrally in the housing 1. It is advantageous if the arrangement of the unit 6 of the common center of gravity of the housing 1 and the unit 6 is selected so that the housing 1 does not tilt when wearing on one side.
• the pump unit housing 1 is formed substantially parallelepiped, wherein it has a rear wall 10, an approximately parallel thereto extending front wall 11, disposed between these walls first side wall 16, an approximately parallel to the first side wall 16 extending second side wall 17 and an upper wall 12 and having a not visible in the figures lower wall.
• the housing 1 is preferred made of plastic or metal.
• the rear wall 10 and the front wall 11 may be formed flat. However, the front wall 11 can also, as is visible in Figure 3, have a central, outwardly projecting curvature 112.
• the rear wall 10 may be curved inwards so as to adapt to the shape of the human body and thus better abut the body.
• the front wall 11 may be curved accordingly.
• the rear wall 10 and the front wall 11 have the largest wall surfaces.
• the upper and lower walls 12 are formed longer than the side walls 16, 17, so that the housing 1 forms a horizontal cuboid.
• the fastening means for corresponding brackets and straps for supporting the portable or portable Absaugpumpenü are not shown. However, they are preferably on the rear wall or side walls of the housing.
• controls for the pump unit 6 are available.
• these elements are arranged in the upper wall 12.
• a main switch 5 is provided to switch the unit or the device on and off.
• a display and control panel 15 is present on which status information about the device, the suction process and other helpful information for optimal extraction can be displayed or queried.
• the air flow rate through the secretion line 30 can be measured and displayed in the display panel 15.
• a data storage element in the housing 1 in order to store measured data and to reproduce it in the display field 15 after a corresponding command input.
• the vacuum pump 62 or the motor 60 can be activated via this field 15 or desired suction parameters can be entered or selected.
• the panel 15 is a touch-screen panel of known type.
• control buttons and switches and optionally a known LCD display instead of such a panel.
• these elements can also be used in a their wall can be arranged.
• the rear wall 10 and the front wall 11 project with their edges at least the first side wall 16, preferably both side walls and also the lower and upper wall.
• the panel 15 is protected from undesired actuation by the protruding walls 10, 11.
• the fluid collection container 2 is also formed approximately cuboid. It has two approximately mutually parallel and approximately planar walls 22, which form the front and rear walls. The same applies to the side walls and the upper and lower wall.
• This fluid collection container 2 is now detachable in the housing 1 and preferably kept completely removable.
• the rear wall 10 and the front wall 11 of the housing on areas, here called front wall edge 110 and rear wall edge 100, which project the first side wall 16.
• These wall edges 100, 110 are preferably formed curved, wherein they have a recess to their own wall surface out. Between these wall edges 100, 110, the container 2 is held, wherein the curved portions facilitate gripping and manual holding of the container 2.
• the container is arranged to pivot in and out between the two edges 100, 110. He is pivotally held in its lower region between the wall edges 100, 110. Preferably, he can be engaged in this position.
• corresponding bolts on the front and rear wall 22 of the container 2 and corresponding recesses in the wall edges 100, 110 may be present.
• the bolts in the wall edges 100, 110 and the recesses in the container 2 may be arranged.
• other types of attachment which allow a pivoting movement and subsequent removal of the container 2, possible.
• the shape of the front and rear walls 22 of the container 2 is adapted to the shape of the wall edges 100, 110.
• the container 2 In an upper region of the container 2 with the housing 1 can be locked.
• the container 2 has a recess 20 into which a retaining lug 14 of the housing 1 can engage.
• the retaining lug 14 can be released via an unlocking button or switch 13 from the engagement with the recess 20, so that the container 2 can be swung out.
• the unlocking button 13 is preferably arranged in the upper wall 12.
• the container 2 can be provided on its front and its rear wall with projecting pins, which are pressed against the wall edges 100, 110, so that the container 2 does not automatically fall out of the housing 1 after the lock has been released.
• a housing-side vacuum connection 18 and the housing-side secretion connection 19 are arranged in the housing 1, as can be clearly seen in FIG.
• the container-side counterparts can be seen in FIG.
• the reference numeral 24 denotes the container-side vacuum port and the reference numeral 25, the container-side secretion port. Both connections are arranged in a side wall 23 of the container 2.
• the vacuum connections 24, 18 form the connection between the vacuum pump 62 and the container 2.
• the secretion connections 19, 25 connect the container 2 to the adapter 7 connectable to the secretion line 30.
• the container-side connection 25 can be closed by means of a closure element 4.
• a closure element 4 This is preferably attached to the container 2, as can be seen in Figure 4. It has a web and a closure cap arranged at the end of the web. The cap is suitable for closing the connection 25.
• the port 24 can be closed by a filter, not shown, which automatically closes automatically, for example, in moisture saturation. Other types of closure are also possible.
• FIG. 2 it can be seen that projecting edges of the pump unit housing 1, namely a rear and a front bottom edge 101, 111, form a standing surface for resting on a surface, for example a table.
• the fluid collection container 2 ends preferably with its lower bottom above this footprint, so that he hangs freely in the housing 1.
• FIG. 5 it is kept stirred between the two wall edges 100, 110.
• the container 2 preferably projects beyond the housing 1 only on a single side.
• the size of the container 2 can be varied.
• a relatively short container 2 is shown, in Figure 6, a longer container 2. They need only in the area between the wall edges 100, 110 have the same shape, so that both can be mounted in the same housing 1. The rest of the form can be chosen freely.
• FIGS. 8 and 9 show two opposing parts of a pump unit housing 1 according to a third exemplary embodiment. These two parts form the rear wall 10 ( Figure 8) and the front wall 11 ( Figure 9) of the housing 1. Both parts are preferably each made in one piece by injection molding of plastic.
• the two parts 10, 11 are designed to be plugged into one another, wherein they are held at a distance from each other.
• vertically projecting plug-in pins 113 and matching opposite Aufhahmebuchsen 114 are arranged. These are also preferably molded in one piece with the walls.
• One or both of the two walls, here the rear wall 10, can be provided with a handle 12 '.
• a trough 120 is preferably arranged, the curvature of which is open at the top. This tray 120 serves to receive or attach the patient tube 30, so that it is kept guided along the pump.
• At least a portion 10, 11, preferably both parts are provided at its front edge with an upper and a lower slide guide 115, 116.
• the two opposite upper slide guides 115 have a widened insertion opening and a subsequently horizontally extending end region, which is directed away from the edge inwards.
• the two opposite lower slide guides 116 also have a widened entrance area. However, this also goes from the edge inwards to a lower, obliquely downward end region.
• This link guides 115 and 116 serve the Receiving and holding the fluid collection container 2.
• FIG. 2 A corresponding fluid collection container 2 made of plastic is shown in FIG. In the region of a side wall 23, it has upper and lower pins or pins 21, 21 ', which are integrally molded onto the rear wall or front wall and protrude substantially perpendicularly therefrom.
• the collecting container 2 To now releasably secure the collecting container 2 to the housing 1, it is first introduced with its lower pin 21 'in the lower slide guides 116 until it stops and then by a pivoting movement about the defined by the end position of the lower slide guide 116 pivot axis with the upper bolt 21 latched in the upper slide guides 115 and in its end position.
• the same type of attachment is preferred for the embodiments mentioned above.
• the pins can also be arranged on the housing and the slide guides on the container. Other types of attachment are possible.
• the container-side vacuum connection 24 and the container-side secretion connection 25 are no longer of the same design as in the above embodiment.
• the adapter piece 70 does not necessarily have to be arranged in a front or rear wall 10, 11 but can also be arranged at a different location of the housing 1, for example in an end face.
• the container 2 is provided instead of a recess with an engagement rib 23 'for fixing the container 2 on the housing 1, in which the retaining lug of the housing 1 can engage. Nose and recess or rib can also be arranged alternatively on the container or on the housing.
• the container 2 may be provided with a single chamber. Preferably, however, its interior is designed divided, as shown in Figures 11 and 12. This container can be used for all embodiments. It is also suitable for other types of drainage pumps.
• the container 2 is ordered from two injection-molded parts 2 ', 2 "made of plastic which complement one another to form a common container, and are preferably made transparent
• the two parts 2', 2" can be plugged together and optionally welded together. Both parts 2 ', 2 "are provided in the interior with various ribs, which are described in detail below:
• the two parts 2', 2" have congruent ribs, so that they form common chambers and regions during assembly.
• the ribs are preferably welded or glued together during assembly, so that an air- and liquid-tight connection is formed.
• the container-side vacuum connection 24 is arranged in the upper region of the container 2, preferably in the side wall 23, which is provided laterally with the pins 21, 21 'for latching into the housing 1.
• the vacuum port 24 is formed by a through opening in this side wall 23.
• the opening 24 leads into a vacuum chamber 26, 26 ', which is completely sealed from the remaining interior of the container 2 to a vacuum passage 261.
• This is achieved by a first curved rib 260 in the first part 2 'and a second rib 260' shaped identically in the second part 2 ", or the passage 261 can be arranged in the first part or in the second part 2" as shown here the junction of the two ribs 260, 260 'may be arranged.
• the vacuum passage 261 is preferably arranged in the upper region, adjacent to the upper wall of the container 2.
• the vacuum passage 261 connects the vacuum chamber 26, 26 'with the intermediate chamber 27, 27'.
• the intermediate chamber 27, 27 ' is preferably formed by a third rib 270 bent at right angles in the first part 2' and a congruent rib 270 'in the second part 2.
• intermediate passage 271 is present, which connects the intermediate chamber 27, 27 'with the remaining interior of the container 2.
• the intermediate passage 271 is preferably located in a region remote from the vacuum chamber 26, 26' area.
• the two passages 261 and 271 are relatively narrow. But there may also be several passes. They should be small enough to prevent backflow of the secretion or the extracted fluid as much as possible and large enough so that the container can be applied as quickly as possible with the applied negative pressure.
• an inclined lip 28, 28' is arranged in each of the two parts 2 ', 2 ", which extends downwardly from the intermediate passage 271 to the vacuum chamber 26, 26' 28, 28 'subdivide the interior into upper and lower regions, the upper region comprising a substantially smaller volume than the lower region, and the tapered ribs (28, 28') preferably extend together over a substantial portion of the width, but not over the entire width of the container (2) and over the entire depth., As a result, the sucked fluid must flow down the sloping lip 28, 28 '.
• the lower region may also be provided with vertically extending barrier ribs 290, 290 ', 291, which may extend over almost the entire height of the lower region or only over a short lower part thereof.
• the secretion port 25 is arranged in the lower region.
• the lower region thus serves to receive the extracted fluid and forms a secretion chamber 29, 29 '.
• the separating ribs 290, 290 ', 291 divide this chamber into sub-chambers, which are fluidly connected to one another. However, they avoid a sloshing of the collected fluid.
• the inclined ribs 28, 28 ' prevent the fluid from splashing into the upper region or, in the case of slight inclinations of the container, the fluid can flow into this region.
• the narrow passage openings and in particular the labyrinth-like arrangement thanks to the intermediate or expansion chamber prevent fluid, which nevertheless has reached the upper area, from reaching the vacuum connection.
• the ribs are only in one part arranged and the second part is flat and serves as a lid.
• the Eisenkarnmer 27, 27 ' is optional but preferred, since a direct connection between the vacuum chamber 26, 26' and secretion chamber 29, 29 'is avoided.
• the suction pump unit according to the invention allows a simple and safe replacement of the fluid collection container and allows the patient an increased mobility.

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• Health & Medical Sciences (AREA)
• Heart & Thoracic Surgery (AREA)
• Engineering & Computer Science (AREA)
• Animal Behavior & Ethology (AREA)
• Public Health (AREA)
• Biomedical Technology (AREA)
• Hematology (AREA)
• Life Sciences & Earth Sciences (AREA)
• Veterinary Medicine (AREA)
• General Health & Medical Sciences (AREA)
• Anesthesiology (AREA)
• Vascular Medicine (AREA)
• Pulmonology (AREA)
• Bioinformatics & Cheminformatics (AREA)
• External Artificial Organs (AREA)
• Jet Pumps And Other Pumps (AREA)
• Details Of Reciprocating Pumps (AREA)

Priority Applications (21)

Applications Claiming Priority (2)

Related Parent Applications (1)

Related Child Applications (3)

Publications (2)

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Cited By (60)

Families Citing this family (65)

Family Cites Families (53)

• 2007
  • 2007-05-03 AU AU2007247698A patent/AU2007247698B2/en active Active
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