HK1139084B - Suction pump unit - Google Patents

Description

Technical field

The invention relates to a suction pump unit as defined in claim 1.

State of the art

In the medical field, and in particular in thoracic drainage, stationary drainage systems are commonly used for draining body fluids or secretions from body cavities or wounds. These drainage systems consist essentially of a suction source, in particular a vacuum pump, a fluid or secretion collecting tank, a water lock placed between them and connecting lines, namely a drainage line leading from a patient to the secretory tank, a connection line leading from the secretory tank to the water lock and a vacuum line connecting the water lock to the suction source.

Although these suction systems have proven themselves in practice, it is essential for the healing process, especially after a thoracic operation, that the patient can move and leave his bed as quickly as possible.

It has therefore been suggested that all the above drainage system components be mounted on a mobile rack, so that the patient can at least have some mobility within the hospital.

In addition, portable suction units are known to significantly increase the patient's range of mobility and are mostly used for wound drainage.

US-6'352'525 reveals a portable pump unit, however, which is designed for thoracic drainage. It can be attached to the patient's body and thus allow him to move freely and relatively unrestricted. This drainage pump unit incorporates a vacuum pump, an energy source, a vacuum chamber and a secretion collector. The vacuum chamber is arranged in a first part, the secretion collector in a second part and the vacuum pump in a third part. The first and third parts are arranged in a drainage system above the second part and are soluble and can be connected to the second part by vacuum connections or vacuum connections.

WO 99/10024 describes a portable pump unit for thoracic drainage, connected by an external line to a similarly portable kidney-shaped collecting tank.

EP-A-1'184'043 also shows a small-sized suction pump, especially for wound drainage, which has a receptacle for suction material and a lid, with all the components of the pump necessary for operation integrated in the lid.

GB 2 378 734 describes a suction pump with a pump housed in a housing to which a canister can be connected, which forms a water lock and which in turn connects to a patient drainage line and a connection line to a secretory vessel.

In addition, document US 3.957.052 shows a suction device which sucks secretions into a reservoir by means of a syringe through a valve structure.

Description of the invention

The invention is therefore intended to create a portable suction pump unit for suctioning bodily fluids, which allows maximum mobility of the patient and easy operation of the unit.

This task is solved by a portable suction pump unit with the characteristics of claim 1.

The portable suction pump unit for draining bodily fluids and/or air according to the invention shall, in a general embodiment, have a pump unit housing with a pump unit and at least one soluble fluid storage tank connected to this pump unit housing, the pump unit housing having a front wall, a rear wall and a side between these two walls. There is an adapter for a patient tube, the adapter being inserted into a wall of the pump unit housing and the adapter being connected to the fluid storage tank and preferably also to the pump unit.

The portable suction pump unit for the extraction of body fluids and/or air according to the invention shall, in a general embodiment, have a pump unit housing with a pump unit and at least one soluble fluid storage tank connected to this pump unit housing, the pump unit housing having a front wall, a rear wall and a side wall arranged between these two walls.

The portable suction pump unit for the extraction of bodily fluids and/or air according to the invention shall, in a general embodiment, have a pump unit housing with a pump unit and at least one soluble fluid storage tank connected to this pump unit housing, the pump unit housing having a front wall, a rear wall and a side wall arranged between these two walls.

In a preferred design, the portable suction pump unit for suction of body fluids and/or air shall have a pump body with a pump body and at least one dissolvable secretion or fluid storage tank connected to that pump body. The pump body shall have a front wall, a back wall and a side wall between these two walls, with the front wall and the back wall each having an edge of the wall that is in front of this side wall and the fluid storage tank being held between these wall edges. This nevertheless makes the fluid storage tank easily mounted to the pump body and securely protected and contained therein.

The patient can carry the suction pump unit around in a variety of ways: he can hang it around his neck, fasten it to a belt, or wear it over his shoulder.

The same housing can also be used for different sizes of fluid storage tanks, which reduces production and operating costs.

In a preferred embodiment, the fluid collection tank is held in- and out-flip between the wall edges, preferably in a lower area where the tank is held in- and out-flip and in an upper area where the pump unit housing is locked.

Preferably the container is completely removable from the housing, and it is easier to replace the container if the container is retractable.

The suction pump unit of the invention is used for medical purposes, in particular for thoracic drainage and wound drainage, but other applications are possible, for example for suctioning body fluids during surgery or for liposuction.

In particular, in thoracic and wound drainage, the advantage is that the device can be kept in operation at all times and thus a permanent vacuum can be created which is actively maintained.

A preferred embodiment is a fluid collector, which can be used in particular for such suction pump units and which prevents contamination of the suction line or pump by suctioned fluid.

This fluid collection tank shall have a drainage connection to a patient-side drainage hose and a vacuum connection to a suction pump, and shall have an interior divided by ribs into at least one vacuum chamber and one drainage chamber, these two chambers being connected by at least one narrow passage, the vacuum connection being in the vacuum chamber and the drainage connection in the drainage chamber.

Preferably, the vacuum chamber and the secretion chamber are not directly connected, but are separated by an intermediate chamber.

The vacuum chamber and the secretion chamber are separated, so the vacuum connection is relatively well protected, even without back valves or membranes.

Other advantageous embodiments are shown by the dependent claims.

Brief description of the drawings

The following illustrations illustrate the subject-matter of the invention by means of preferred embodiments shown in the accompanying drawings:Figure 1a perspective view of a suction pump unit according to the invention in a first embodiment;Figure 2a perspective view of the suction pump unit according to Figure 1 with a view of the interior of the housing;Figure 3a perspective view of the suction pump unit according to Figure 1 with a partially suctioned fluid reservoir in perspective view from one side;Figure 4a perspective view of the suction pump unit according to Figure 3 in perspective view from a second side;Figure 5a perspective view of the suction pump unit according to Figure 1 above;Figure 6a perspective view of a suction pump unit according to Figure 9a;Figure 8a perspective view of a suction pump unit in perspective from two sides;Figure 8a perspective view of a suction pump unit in perspective from the first side;Figure 10a perspective view of a suction pump unit in perspective from the second side;Figure 8a perspective view of a suction pump unit according to Figure 10a;Figure 9a perspective view of a suction pump unit in two sides;Figure 8a perspective view of a suction pump unit in perspective from the second side;Figure 10a perspective view of a suction pump unit in perspective from the second side;Figure 10a perspective of a suction pump unit;Figure 8a perspective view of a suction pump unit in two sides;Figure 10a view of a suction pump unit in the suction fluid;Figure 8a view of a suction pump unit in the second side;Figure 10 and 10 and 10;Figure 8a perspective representation of a suction fluid in the second side;Figure 10 and 10 and 10;Figure 10 and 10;Figure 8a perspective representation of a suction;Figure 10 and 10 and 10;Figure 10 and 10;Figure 8a;Figure 10 and 10 and 10;Figure 10 and 10;Figure 10 and 10;Figure 8a;Figure 10 and 11;Figure 10 and

Ways of carrying out the invention

The first example of the exhaust pump unit of the invention is shown in Figures 1 and 2. It consists essentially of a pump unit housing 1 with a pump unit 6 located in it and visible in Figure 2 and at least one fluid collection tank 2. Preferably, there is exactly one fluid collection tank 2. The pump unit 6 is used to generate the pressure necessary for the extraction. The fluid collection tank 2 is connected to the pump unit 6 so that the subpressure can be generated in the tank 2. The collection tank 2 is connected via an exhaust pipe or a secretory line to a 30 kV wound or the patient's body, where the body fluid is to be drained, the collected fluid drained from the body.

Preferably, not only the discharge line 30 leads to the patient, but also a measuring line 31 through which, for example, the pressure or flow rate in the discharge line can be measured. Preferably, a double-loop patient tube 3 is used for this purpose, which contains both lines 30, 31. The tube 3 may be directed from the housing 1 as shown here, but it may also be arranged at an angle or a displaced adapter may be used into which the tube 3 can be inserted.

Preferably, the tube 3 is connected to an adapter 7. This adapter is shown in detail in Figure 7. It is preferably made of plastic by injection molding. It has a double tube connector 71 to which or into which the double-loop patient tube 3 can be connected. To this tube connector 71 a flange 70 is mounted, which is mounted on the housing 1 and through which the adapter 7 can be attached, for example, in the housing 1. The housing-side part of the adapter 7 has a detached head-plug section 72 for a housing-secreting tube 19 and a connection 73 for the measuring tube 31 which is closed at the opposite end of the head-plug 74 and 72 for the measuring tube 72.

The pump unit 6 consists essentially of an electric motor 60, a storage element 61, batteries here, and a vacuum pump 62. The motor 60 is preferably mounted on the pump 62 flanked and the vacuum pump 62 is preferably kept fixed on the housing 1.

Preferably, the unit 6 is placed approximately in the centre of the housing 1 and preferably in the centre of the housing 1; it is advantageous if the unit 6 is placed in such a way that the unit 1 and unit 6 have a common centre of gravity so that the unit 1 does not tilt to one side when being worn.

The pump unit housing 1 is essentially square, with a rear wall 10, a front wall 11 running approximately parallel to it, a first side wall 16 arranged between these walls, a second side wall 17 running approximately parallel to the first side wall 16, an upper wall 12 and a lower wall not visible in the figures. The housing 1 is preferably made of plastic or metal. The rear wall 10 and the front wall 11 may be flat. The front wall 11 may also have a central but protruding arch 112 as shown in Figure 3. The rear wall 10 may also be curved to fit the shape of the human body and thus be more suitably curved to the inside wall.

Preferably the rear wall 10 and the front wall 11 have the largest wall areas, and the upper and lower wall 12 are longer than the side walls 16, 17, so that the housing 1 forms a reclining square.

The figures do not show the attachments for the appropriate brackets and straps for the portable or portable suction pump unit, but they are preferably on the back or side walls of the housing.

Housing 1 contains controls for pump unit 6; preferably these controls are located in the upper wall 12. In the example shown here, there is a main switch 5 to turn the unit or apparatus on and off. There is also an indicator and control panel 15 on which the status information of the apparatus, the suction operation and other information useful for optimal suction can be displayed or retrieved. For example, the air flow rate can be measured by the secretory line 30 and shown in the display panel 15. It is also possible to arrange a storage element in housing 1 to store measurement data and to display the corresponding data in the display panel 15 after the command.

In addition, the vacuum pump 62 or the motor 60 can be activated or the desired suction parameters entered or selected via this field 15. Preferably, the field 15 is a touch screen field of a known type. However, it is also possible to use control buttons and switches and optionally a known LCD display instead of such a field.

The rear wall 10 and the front wall 11 shall be at least in front of the first side wall 16, preferably both side walls and also the lower and upper walls, with their edges.

The fluid storage tank 2 is also approximately square in shape, with two parallel and approximately flat walls 22 forming the front and rear walls, the side walls and the upper and lower walls.

This fluid storage tank 2 is now soluble in housing 1 and preferably held completely removable. To this end, the rear wall 10 and the front wall 11 of the housing have areas, here called front wall edge 110 and rear wall edge 100, which are in front of the first side wall 16. These wall edges 100, 110 are preferably curved, having a notch towards their own wall surface. Between these wall edges 100, 110 the tank 2 is held, the curved areas facilitating the grasping and manual holding of the tank 2.

As shown in Figures 3 and 4, the container is adjustable and adjustable between the two edges 100, 110, and is held in its lower area between the wall edges 100, 110, and is preferably adjustable in this position. For this purpose, corresponding bolts may be fitted on the front and rear walls 22 of the container 2 and corresponding remnants on the wall edges 100, 110.

In an upper area, the container 2 can be locked with the housing 1. To this end, the container 2 has a gap 20 in which a retention shaft 14 of the housing 1 can intervene. The retention shaft 14 can be released from the gap with the exception 20 by means of a release button or switch 13 so that the container 2 can be deflected. The release button 13 is preferably located in the upper wall 12 of the container. As an additional stop, the container 2 can be provided with protruding hinges on its front and back walls, which are pressed to the wall edges 100, 110 so that the container 2 does not fall out of the housing 1 automatically after the release of the lock.

The container side pendants are visible in Figure 4. The reference digit 24 is the container side vacuum connection and the reference digit 25 is the container side secret connection. Both connectors are located in a page 23 of container 2. The vacuum connectors 24, 18 are the connection between the vacuum tube 62 and container 2. The container side secret connectors 19, 25 connect the container 2 to the container side secret connection 30 Adap 7.

When the container 2 is removed, the container-side connection 25 can be closed by means of a closing element 4. This is preferably attached to the container 2, as shown in Figure 4. It has a dock and a closing cap placed at the end of the dock. The closing cap is suitable for closing connection 25. Connection 24 can be closed by a non-shown filter, which closes automatically, for example, when moisture saturation occurs. Other types of closing are also possible.

In Figure 2 it is shown that the leading edges of pump unit housing 1, namely the rear and front bottom edge 101, 111, form a support surface for application to a surface such as a table. However, the fluid collection tank 2 preferably ends with its bottom floor above this support surface so that it hangs freely in housing 1. However, as shown in Figure 5, it is held between the two wall edges 110 100, 110 and 110 100.

The size of the container 2 can be varied. Figure 5 shows a relatively short container 2 and Figure 6 a longer container 2. They only need to have the same shape in the area between the wall edges 100, 110 so that both can be fixed in the same housing 1.

In Figures 8 and 9, two opposite parts of a pump unit housing 1 are shown in a third example, forming the rear wall 10 (Figure 8) and the front wall 11 (Figure 9) of the housing 1.

The two parts 10, 11 are designed to be plugged in, and are kept apart from each other.

One or both of the two walls, here the back wall 10, may be fitted with a 12' handle. At the 12' handle, preferably, a tub 120 is placed with its arch open upwards. This tub 120 is used to receive or attach the patient tube 30 so that it is held along the pump.

At least one part 10, 11, preferably both parts, has an upper and a lower backing at its front edge 115, 116. The two opposite upper backing leads 115 have a widened opening and a subsequently horizontal end point which is directed inwards away from the edge. The two opposite lower backing leads 116 also have an extended end point, but this also passes inwards away from the edge into a lower, slanted downward end point. These leads 116 and 115 are used to receive and hold the fluid collection tank 2.

A corresponding plastic fluid storage tank 2 is shown in Figure 10 and, in the area of a side wall 23, has upper and lower bolts or cones 21, 21' injected individually into the rear or front wall and substantially perpendicular to it.

To secure the collector tank 2 loosely to the housing 1, it is first inserted with its lower bolts 21' into the lower back guides 116 to the coupling and then, by a swivel motion around the pivot axis defined by the end position of the lower back guides 116, is connected with the upper bolts 21 to the upper back guides 115 or their end position. The same method of attachment is also preferred for the examples mentioned above. The bolts can also be placed on the housing and the back guides on the container.

As can be seen in Figure 10, in this collection tank 2 the tank side vacuum connection 24 and the tank side secretory connection 25 are no longer in the same configuration as in the example above. The adapter 70 does not necessarily have to be located in a front or rear wall 10, 11 but can also be located elsewhere in the housing 1, for example on the front side. Furthermore, the tank 2 is equipped with an intervention strip 23' to fix the tank 2 in the housing 1 instead of an exception, which can be used by the container 1 restraint. The nose and the removal or removal can also be used alternately on the housing or on the rear side of the housing. These features can be combined with each other in the above examples and can also be used in any of the above treatments.

The container 2 may be equipped with a single chamber, but preferably with a divided interior as shown in Figures 11 and 12.

Err1:Expecting ',' delimiter: line 1 column 145 (char 144)

Err1:Expecting ',' delimiter: line 1 column 639 (char 638)

Err1:Expecting ',' delimiter: line 1 column 429 (char 428)

The two passages 261 and 271 are relatively narrow, but there may be several passages, which should be small enough to prevent the secretion or the suction fluid from flowing back as far as possible and large enough to allow the container to be pressurised as quickly as possible.

Err1:Expecting ',' delimiter: line 1 column 148 (char 147)

The lower part may also have vertical separating strips 290, 290', 291 which may extend over almost the whole height of the lower part or only a short lower part of it.

The 25th secretion junction is located in the lower part of the vessel, the lower part of which is used to absorb the liquid drawn in and forms a secretion chamber 29, 29'. The separating ribs 290, 290', 291 divide this chamber into sub-chambers, which are connected to each other by the fluid. They prevent the fluid collected from flowing in and out. The 28th and 28th handles prevent the fluid from flowing into the upper part of the vessel or from flowing into this area if the vessel is slightly inclined. The narrow labyrinthine openings and in particular the upper part of the labyrinthine arrangement, thanks to the intermediate or expansion chamber, prevent fluid that can still reach the upper part of the vessel from entering the vacuum.

In an unrepresented embodiment, the ribs are arranged in only one part and the second part is flattened and serves as a lid.

The intermediate chamber 27, 27' is optional but preferred because it avoids a direct connection between vacuum chamber 26, 26' and secretory chamber 29, 29'.

All the above fluid storage tanks can be manufactured in different sizes.

The invention also relates to:

A portable suction pump unit for the extraction of bodily fluids and/or air, where the suction pump unit has a pump body (1) with a pump body (6) and at least one soluble fluid storage tank (2) connected to that pump body (1), where the pump body (1) has a front wall (11), a rear wall (10) and a side wall (16) located between these two walls (10, 11), characterised by the front wall (11) and the rear wall (10) having one wall edge (110, 100) each, which is facing that side wall (16) and the fluid storage tank (2) being located between these walls (110, 100).

This suction pump unit, with the fluid collection tank (2) being adjustable between the wall edges (110, 100).

This suction pump unit, whereby the fluid collection tank (2) is held in a lower area between the wall edges (110, 100) and locked in an upper area by the pump unit housing (1).

This suction pump unit, having a backing (14) which can be dissolved by means of a release element (13) from a device attached to the fluid storage tank (2).

This suction pump unit, with the fluid collection tank (2) at the bottom of the unit capable of being connected to the pump housing (1).

This suction pump unit, where the container (2) has protruding nozzles (21, 21') and the housing (1) has lateral back-guides (115, 116) which can be moved together in the interlock.

This suction pump unit, where the pump body (1) has a support surface to be placed on a surface and the fluid collection tank (2) ends with its bottom above this support surface.

This suction pump unit, where the pump unit housing (1) is essentially square.

This suction pump unit, where the pump unit (6) comprises at least one motor (60) and one vacuum pump (62), where the vacuum pump (62) is a membrane pump and where the pump unit (6) is located approximately centrally in the pump unit housing (1).

This suction pump unit, with the fluid collection tank (2) only one side above the pump unit housing (1).

This suction pump unit, with a patient hose (3) connection in the front wall (11).

This suction pump unit, having a vacuum connection (18) and a secret connection (19) in the sidewall (16) of the pump unit housing (1).

This suction pump unit, having an adapter (7) for a patient tube (3), the adapter (7) being inserted into a wall (11) of the pump unit housing (1), and the adapter (7) being capable of connecting to the pump unit (6) and the fluid collection tank (2).

This suction pump unit, the connector or adapter (7) being designed to accommodate a double-loop patient tube (3) consisting of a secretion tube (30) and a measuring tube (31).

A fluid collection tank for the reception of drained fluid, in particular for use with a suction pump unit as described above, with a drainage outlet (24) for the patient-side drainage hose and a vacuum outlet (25) for the suction pump, and with an inner compartment divided by ribs, characterised by the inner compartment being divided into at least one vacuum chamber (26, 26') and one secret chamber (29, 29'), these two chambers being connected by at least one passage, and the vacuum outlet (24) being in the vacuum chamber (26, 26') and the secret chamber (25) being in the secret chamber (29, 29').

This fluid storage tank, with an intermediate chamber (27, 27') between the vacuum chamber (26, 26') and the secretion chamber (29, 29') and with a vacuum passage (261) from the vacuum chamber (26, 26') to the intermediate chamber (27, 27') and from there to the secretion chamber (29, 29').

This fluid storage tank, where there is no direct connection between the vacuum chamber (26, 26') and the secretion chamber (29, 29').

This fluid storage tank, with the vacuum chamber (26, 26') located in the upper part of the tank (2).

This fluid storage tank, with a sleeve (28, 28') adjacent to the vacuum chamber (26, 26') in the upper part of the secretory chamber (29, 29') extending over a substantial part of the width of the tank (2), but not over the entire width, and extending over the entire depth.

This fluid storage tank, where the secretory chamber (29, 29') is divided into interconnected sub-chambers by vertical ribs (290, 290', 291).

The suction pump unit of the invention allows for easy and safe replacement of the fluid collection tank and allows for increased patient mobility.

List of reference marks

Err1:Expecting ',' delimiter: line 1 column 486 (char 485)

Claims (11)

1. A portable aspiration pump unit for the aspiration of bodily fluids and/or air, wherein the aspiration pump unit has a pump assembly housing (1) with a pump assembly (6) and at least one fluid collection reservoir (2) detachably connected to this pump assembly housing (1), wherein the pump assembly housing (1) has a front wall (11), a rear wall (10), and a side wall (16) arranged between these two walls (10, 11), wherein an adapter (7) for a patient's tube (3) is present, characterized in that the adapter (7) can be introduced into a wall (10, 11, 16) of the pump assembly housing (1) and that the adapter (7) can be connected to the fluid collection reservoir (2).
2. The aspiration pump unit as claimed in claim 1, wherein the adapter (7) is configured to accommodate a double-lumen patient's tube (3) consisting of secretion tube (30) and metering tube (31).
3. The aspiration pump unit as claimed in one of claims 1 to 2, wherein a vacuum connector (18) and a secretion connector (19) are arranged in the side wall (16) of the pump assembly housing (1).
4. The aspiration pump unit as claimed in claim 1, wherein the adapter (7) is arranged in the front wall (11).
5. The aspiration pump unit as claimed in one of claims 1 to 4, wherein the front wall (11) and the rear wall (10) each have one wall edge (110, 100) projecting beyond this side wall (16) and the fluid collection reservoir (2) is held between these wall edges (110, 100), particularly wherein the fluid collection reservoir (2) can swivel in and out between the wall edges (110, 100).
6. The aspiration pump unit as claimed in claim 5, wherein the fluid collection reservoir (2) is held and hinged in a lower region between the wall edges (110, 100) and can be locked to the pump assembly housing (1) in an upper region.
7. The aspiration pump unit as claimed in one of claims 1 to 6, wherein the pump assembly housing (1) is formed essentially as a cuboid.
8. The aspiration pump unit as claimed in one of claims 1 to 7, wherein the pump assembly (6) comprises at least a motor (60) and a vacuum pump (62), wherein the vacuum pump (62) is a membrane pump and wherein the pump assembly (6) is arranged approximately central in the pump assembly housing (1).
9. The aspiration pump unit as claimed in one of claims 1 to 8, wherein the fluid collection reservoir (2) projects beyond the pump assembly housing (1) on only a single side.
10. The aspiration pump unit as claimed in one of claims 1 to 9, wherein the adapter (7) comprises a flange (70) for securing the adapter (7) in the housing (1).
11. The aspiration pump unit as claimed in claim 1, wherein the adapter (7) can be connected to the pump assembly (6).