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EP-4735070-A1 - ARRAY COMPRISING AT LEAST TWO UNIT PARTS AND AT LEAST TWO CONTAINER PARTS FOR FORMING AN APPARATUS FOR NEGATIVE-PRESSURE WOUND THERAPY

EP4735070A1EP 4735070 A1EP4735070 A1EP 4735070A1EP-4735070-A1

Abstract

The present invention relates to an array (2) comprising at least two unit parts (4a, 4b) and at least two, in particular three, container parts (6a, 6b, 6c); it being possible for each unit part (4a, 4b) to be physically coupled to and to be brought into operative connection with each container part (6a, 6b, 6c) to form an apparatus (8) for negative-pressure wound therapy on a human or animal body, having a negative-pressure-generating device (10) which is received in the relevant unit part (4a, 4b), and having a container (12), preferably a single-use container (129), which can be disposed of after use, for receiving fluids, in particular wound secretions, suctioned from a wound, which container is formed by the relevant container part (6a, 6b, 6c), and having a connector (14) for a suction line (16) leading to the wound; the relevant unit parts (4a, 4b) and the relevant container parts (6a, 6b, 6c) being coupleable to one another and detachable from one another manually and without tools and comprising mutually physically interacting interfaces (18, 20) for negative-pressure communication; a stand face (46) of the apparatus (8) being formed by the container part (6a, 6b, 6c) when the apparatus (8) is used as intended; and the unit parts (4a, 4b) differing from one another in terms of at least one of the following properties, specifically from the group consisting of: technical type of the negative-pressure-generating device; energy supply to the negative-pressure-generating device; electrical power input of the negative-pressure-generating device; achievable negative pressure or negative-pressure range of the negative-pressure-generating device; operating parameters and operating modes of the negative-pressure-generating device; design of a control device for the negative-pressure-generating device; interactivity of the negative-pressure-generating device and its control device; geometric dimensions of the unit parts; and the container parts (6a, 6b, 6c) differing from one another in terms of at least one of the following properties, specifically from the group consisting of: geometric dimensions and geometric shape of the container parts; receiving volumes of the container parts; size and design of a coupling face or coupling surface; material of the container parts; transparency of the container parts.

Inventors

  • LENGERER, Andreas
  • DEIBLER, MARTIN
  • CROIZAT, PIERRE

Assignees

  • Paul Hartmann AG

Dates

Publication Date
20260506
Application Date
20240429

Claims (20)

  1. 1. Array (2) comprising at least two unit parts (4a, 4b) and at least two, in particular at least three container parts (6a, 6b, 6c), wherein each unit part (4a, 4b) can be physically coupled to each container part (6a, 6b, 6c) and brought into an operational connection to form a device (8) for the negative pressure treatment of wounds on the human or animal body, with a negative pressure generating device (10) which is accommodated in the respective unit part (4a, 4b), and with a container (12), preferably a disposable container (12) which can be thrown away after use, for receiving liquids sucked out of a wound, in particular wound secretions, which is formed by the respective container part (6a, 6b, 6c), and with a connection (14) for a suction line (16) leading to the wound, wherein the respective unit parts (4a, 4b) and the respective container parts (6a, 6b, 6c) can be coupled to and detached from one another manually and without tools and have interfaces (18, 20) that interact with one another physically for suppression communication, wherein a standing side (46) of the device (8) is formed by the container part (6a, 6b, 6c) when the device (8) is used as intended, and wherein the aggregate parts (4a, 4b) can be separated from one another in at least one of the following properties, namely from the group technical type of the negative pressure generating device, energy supply of the negative pressure generating device, electrical power consumption of the negative pressure generating device, achievable negative pressure or negative pressure range of the negative pressure generating device, operating parameters and operating modes of the negative pressure generating device, design of a control device for the negative pressure generating device, interactivity of the negative pressure generating device and its control device, geometric dimensions of the aggregate parts, and wherein the container parts (6a, 6b, 6c) differ from one another in at least one of the following properties, namely from the group geometric dimensions and geometric shape of the container parts, receiving volume of the container parts, size and design of a coupling side or coupling surface, material of the container parts, transparency of the container parts.
  2. 2. Array (2) according to claim 1, characterized in that the aggregate parts (4a, 4b) and the container parts (6a, 6b, 6c) can be releasably fixed to one another by a snapping, locking or otherwise positively acting locking or rear gripping means (22) and that the locking or rear gripping means (22) can be manually inserted into a release direction so that the The container part (6a, 6b, 6c) and the unit part (4a, 4b) can be separated and removed from each other.
  3. 3. Array (2) according to claim 2, characterized in that the locking or engaging means (22) can be deflected when coupling the parts, in particular transversely to the joining direction, and can be brought into a locking or engaging position.
  4. 4. Array (2) according to one or more of the preceding claims, characterized by at least one aggregate part (4a, 4b) and/or at least one container part (6, 6b, 6c) which is cuboid-shaped or disc-shaped or forms a wedge shape.
  5. 5. Array (2) according to one or more of the preceding claims, characterized in that the aggregate parts (4a, 4b) and the container parts (6a, 6b, 6c) are each arranged side-by-side in the operating connection and for this purpose each have a coupling side (52, 54) which contact each other and are designed to be complementary to each other.
  6. 6. Array (2) according to claim 5, characterized in that a respective coupling side (52, 54) of the container parts (6a, 6b, 6c) and the aggregate parts (4a, 4b) each has a side of greatest areal extension and largest top surface of the container parts (6a, 6b, 6c) and the aggregate parts (4a, 4b).
  7. 7. Array (2) according to claim 5 or 6, characterized in that the coupling side (54) of a container part (6a, 6b, 6c) is arranged opposite to its standing side (46) and that an operating side (40) of an aggregate part (4a, 4b) is arranged opposite to its coupling side (52) and thus opposite to the standing side (46) of the container part (6a, 6b, 6c).
  8. 8. Array (2) according to one or more of the preceding claims, characterized in that the aggregate parts (4a, 4b) and/or the container parts (6a, 6b, 6c) can be placed against one another via a respective substantially flat or convex or concave coupling side (52, 54).
  9. 9. Array (2) according to one or more of the preceding claims, characterized in that the interface (18, 20) of the respective aggregate part (4a, 4b) and the respective container part (6a, 6b, 6c) is formed in a respective coupling side (52, 54).
  10. 10. Array (2) according to one or more of the preceding claims, characterized in that the interface (18) of at least one container part (6a, 6b, 6c) and/or at least one unit part (4a, 4b) is designed as an assembly (66) which is integrated into a Receiving opening (70) of the respective container part (6a, 6b, 6c) or of the respective unit part (4a, 4b) can be inserted, in particular latched, and has a wall component (68) and at least one vacuum communication opening (62) formed therein.
  11. 11. Array (2) according to claim 10, characterized in that the wall component (68) has a particularly flat and particularly trough-shaped depression (60) into which a complementary projecting wall region (56) of the respective other unit part (4a, 4b) or container part (6a, 6b, 6c) can engage.
  12. 12. Array (2) according to one or more of the preceding claims, characterized by at least one container part (6a, 6b, 6c) with a standing side (46) and a coupling side (54) opposite the standing side (46), which extends inclined, in particular inclined at an angle of 5-40°, particularly preferably inclined at an angle of 10-30° to the standing side.
  13. 13. Array (2) according to one or more of the preceding claims, characterized in that all container parts (6a, 6b, 6c) differ in their liquid absorption volume and their areal extension and/or thickness projected onto a base, and in that all aggregate parts (4a, 4b) also differ in their The area and/or thickness projected onto the base may differ.
  14. 14. Array (2) according to one or more of the preceding claims, characterized in that at least one unit part (4a, 4b) and/or at least one container part (6a, 6b, 6c) has fastening means so that the device (8) can be worn and carried on the body of the user.
  15. 15. Array (2) according to one or more of the preceding claims, characterized in that the container part (6a, 6b, 6c) is provided facing the body and the aggregate part (4a, 4b) is provided facing away from the body when the device (8) is carried on the body of the user as intended.
  16. 16. Array (2) according to one or more of the preceding claims, characterized in that one container part (6a, 6b, 6c) or several container parts (6a, 6b, 6c) and/or one unit part (4a, 4b) or several unit parts (4a, 4b) have a rounded, in particular concave, body contact area for contact with the body of a user.
  17. 17. Array (2) according to one or more of the preceding claims, characterized in that the coupling sides (52, 54) of the aggregate parts (4a, 4b) and the container parts (6a, 6b, 6c) are designed to be complementary in shape to one another in such a way that when physically coupled in pairs by By bringing together any part of the unit (4a, 4b) and any part of the container (6a, 6b, 6c), exactly one intended operating connection is established.
  18. 18. Array (2) according to one or more of the preceding claims, characterized in that at least one container part (6a, 6b, 6c) and at least one unit part (4a, 4b) are designed such that the unit part (4a, 4b) can be placed in a slightly oblique orientation of its coupling side (52) to a coupling side (54) of the container part (6a, 6b, 6c) with an edge region or a support region projecting from the coupling side (52) against a complementarily designed support region of the container part (4a, 4b) and can be folded or pivoted from this starting from the oblique orientation into the operating position.
  19. 19. Array (2) according to one or more of the preceding claims, characterized in that when coupling the container part (6a, 6b, 6c) to the aggregate part (4a, 4b), a negative pressure communication is simultaneously established between the container part (6a, 6b, 6c) and the negative pressure generating device (10).
  20. 20. Array (2) according to one or more of the preceding claims, characterized in that the connection for the suction line (16) leading to the wound can also be used to produce an additional suppression or Flow communication is formed between the unit part (4a, 4b) and a measuring or rinsing lumen leading to the wound.

Description

Title: Array comprising at least two aggregate parts and at least two container parts for forming a device for negative pressure treatment of wounds Description The invention relates to the field of negative pressure treatment of wounds on the human or animal body. For this purpose, devices for the negative pressure treatment of wounds are used which can be used stationary or, if necessary, carried on the body of a user, with a device generating negative pressure and with a container, preferably a disposable container which can be thrown away after use, for receiving suctioned out of a wound. wound fluids and with a connection for a suction line leading to the wound. In such devices for the negative pressure treatment of wounds, the device generating the negative pressure typically communicates with the wound or the wound space via the container and the suction line, wherein an air-impermeable covering material is provided as a negative pressure wound dressing for essentially closing the wound and the wound space in a negative pressure-tight manner, so that a negative pressure can be produced in the wound space and liquids can be sucked out of the wound space into the container. In the context of the present invention, the term negative pressure refers to an air pressure that is lower than the ambient air pressure (atmospheric air pressure) and is applied to the wound within a wound dressing. The covering material of a wound dressing for the airtight sealing of a wound space must therefore be designed in such a way that it can withstand the resulting pressure difference so that the negative pressure in the wound space can be created and maintained. In the field of negative pressure therapy in wound treatment, the negative pressure is quantitatively specified as the pressure difference between the ambient air pressure and the air pressure applied beneath the covering material. Typically, This pressure difference in the area of negative pressure therapy is a maximum of 250 mm Hg (mm of mercury) (1 mm Hg = 1 Torr = 133.322 Pa). This negative pressure range of up to a maximum of 250 mm Hg has proven to be suitable for wound healing. A preferred negative pressure range is between 20 and 200 mm Hg. The negative pressure applied to the wound using the device can, in a typical negative pressure treatment, either be kept essentially constant over time, or it can be changed over time, in particular changed cyclically, which can be realized via an appropriately designed and programmed control device in the device generating the negative pressure, in particular depending on further parameters. To create negative pressure and to suck out liquids, a preferably flexible suction line is provided which communicates at one end, in particular via a so-called port in the area of the wound covering material, with the wound environment or the wound space and at the other end with the connection mentioned at the beginning and thus with the container and the device generating negative pressure. In the devices for vacuum treatment under discussion here, the device generating the vacuum is accommodated in an aggregate part, and the container is formed by a container part, wherein the aggregate part and the container part can be coupled to and detached from one another manually and without tools and have interfaces that interact physically with one another for negative pressure communication, so that negative pressure communication can be established between the device that generates negative pressure, the container part and the suction line leading to the body. The container is preferably a disposable container. The requirements for the best possible negative pressure treatment from a therapeutic point of view in an individual case are very diverse and naturally depend on the type and extent of the wound, its depth, its state of healing or the degree of impaired wound healing, in particular the degree of infection, as well as on the patient and their state of health. Accordingly, a large number of differently designed devices for negative pressure treatment must be available in order to be able to cover and serve the needs that arise. Furthermore, negative pressure therapy can be carried out as an inpatient in a hospital or at the patient's home, although in the latter case the devices used should typically be suitable for mobile operation and should preferably also be less complex and easier to use. Based on this, the present invention is based on the object of being able to satisfy the above-mentioned need for the best possible and, in the individual case, optimally suitable negative pressure wound treatment in an economical manner. This object is achieved according to the invention by an array having the features of claim 1. It is therefore proposed according to the invention to provide an array with several unit parts and several container parts, the components of which, i.e. unit parts and container parts, can be coupled to