Abstract
The subject matter of the invention is a wound care device for treatment of wounds by means of subatmospheric pressure in the wound region, having a wound covering element, a device for generating subatmospheric pressure, which can optionally be placed on the wound covering element, and an absorption body taking up wound exudations.
Claims
1. A wound care device for treatment of wounds by means of subatmospheric pressure in a wound area, the wound care device comprising: at least one wound covering element; at least one device for generating subatmospheric pressure placed on the wound covering element; and a sensor for detecting microbial load of the wound exudation.
2. The wound care device according to claim 1, where the sensor is a germ detector.
3. The wound care device according to claim 1, where the sensor is a biosensor or a test strip with color indicators.
4. The wound care device according to claim 1, where the sensor detects multiresistant germs.
5. The wound care device according to claim 4, where the multiresistant germs are selected from the group consisting of MRSA (Methicillin-resistant Staphylococcus aureus, ORSA (Oxacillin-resistant Staphylococcus aureus), VISA (Vancomycin-intermediate Staphylococcus aureus) or VRSA (Vancomycin-resistant Staphylococcus aureus).
6. The wound care device according to claim 3, where the biosensor is placed on the principle of the immunoassay or a biochip, or on aptamers.
7. The wound care device according to claim 6, where the biosensor is in the form of a disposable product.
8. The wound care device according to claim 3, where the biosensor is combined with an operating and/or control element.
9. The wound care device according to claim 3, where the operating and/or control element includes a memory for storing and reading out the measured levels for the microbial load.
10. The wound care device according to claim 1, further comprising at least one absorption body to absorb the wound exudations.
11. The wound care device according to claim 1, further comprising at least one reservoir for collecting wound exudations.
12. The wound care device according to claim 1, further comprising a liquid-permeable wound contact layer facing the wound.
13. The wound care device according to claim 10, further comprising a barrier disposed between the device for creating subatmospheric pressure and the absorption body for absorbing the wound secretions, where the barrier is configured to prevent liquids from flowing to the device for creating subatmospheric pressure.
14. The wound care device according to claim 1, further comprising: a connection site for an outside power supply.
15. The wound care device according to claim 1, further comprising: a coupling, a check valve, a three-way cock, or any combination thereof arranged between the device for creating subatmospheric pressure and the wound covering element.
16. The wound care device according to claim 10, further comprising: a coupling, a check valve, a three-way cock, or any combination thereof arranged between the device for creating subatmospheric pressure and the absorption body for absorbing the wound exudations.
17. The wound care device according to claim 10, where the absorption body includes a non-woven containing cellulose fibers.
18. The wound care device according to claim 1, further comprising: means of dispensing medications.
19. The wound care device according to claim 1, further comprising: means for introducing flushing medium.
20. The method for treating a wound using a wound care device comprising at least one wound covering element and at least one device for generating subatmospheric pressure which may optionally be placed on the wound covering element, the method comprising: generating a given partial vacuum using the device for generating subatmospheric pressure; switching off the device for creating subatmospheric pressure; and when a partial vacuum threshold is crossed, switching on the device for creating subatmospheric pressure to generate a given partial vacuum.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0109] In the accompanying figures, like elements are identified by like reference numerals among the several preferred embodiments of the present invention.
[0110] FIG. 1 is a schematic sectional representation of an example of a wound care device that uses subatmospheric pressure;
[0111] FIG. 2 is a schematic sectional representation of another example of a wound care device having a foam absorption body;
[0112] FIG. 3 is a perspective bottom view of a micropump;
[0113] FIG. 4 is a schematic top view of the upper side of the micropump of FIG. 3;
[0114] FIG. 5 is a schematic top view of the upper side of another embodiment of the micropump;
[0115] FIG. 6 is a diagram of a marking on the wound covering element;
[0116] FIG. 7 is a schematic sectional representation of another embodiment of the wound care device;
[0117] FIG. 8 is a diagram of a mini-USB connection on the micropump,
[0118] FIG. 9a is an exploded view of a flat adapter;
[0119] FIG. 9b shows the flat adapter pressed together across the wound covering element;
[0120] FIG. 9c depicts the mounting of the micropump on the flat adapter with a schematically indicated absorption body;
[0121] FIG. 10a is a schematic sectional representation of a magnetic connection of the micropump to the flat adapter;
[0122] FIG. 10b is a schematic sectional representation of another embodiment of the magnetic connection, with a micropump situated inside the absorption body;
[0123] FIG. 11a is a top view looking at the wound covering element of another embodiment of the wound care device, with divided fields of the wound covering element;
[0124] FIG. 11b depicts section A-A of FIG. 11a;
[0125] FIG. 12 is a top view looking at the wound covering element of another embodiment of the wound care device, likewise with divided surface of the wound covering element;
[0126] FIG. 13a is a top view looking at the wound covering element of another embodiment of the wound care device;
[0127] FIG. 13b is a schematic side view of the wound care device of FIG. 13a;
[0128] FIG. 14 is a top view of a wound covering element having flat batteries;
[0129] FIG. 15 is a schematic top view of another embodiment of the wound covering element with flat battery;
[0130] FIG. 16a is a top view looking at a round wound covering element of another embodiment of the wound care device;
[0131] FIG. 16b is a schematic sectional representation the wound care device of FIG. 16a;
[0132] FIG. 17a is a perspective view of a foamlike absorption body;
[0133] FIG. 17b is a sectional representation of the absorption body of FIG. 18a;
[0134] FIG. 17c depicts the absorption body of FIG. 18b with a micropump mounted in it;
[0135] FIG. 17d is a sectional representation of a wound care device having the foamlike absorption body and micropump;
[0136] FIG. 18 is a sectional representation of another embodiment of the wound care device;
[0137] FIG. 19a is a top view of another embodiment of the wound care device, having a drainage collector;
[0138] FIG. 19b depicts section B-B of FIG. 19a;
[0139] FIG. 19c is a top view of the wound care device of FIG. 19a looking at its side facing the wound;
[0140] FIG. 20 is a schematic sectional representation of another embodiment of the wound care device having a three-way valve;
[0141] FIG. 21 is a top view of another embodiment of the wound care device having two micropumps looking at the wound covering element.
[0142] FIG. 22 is a schematic sectional representation of another embodiment of the wound care device having a suction head arranged between the micropump and the wound covering element;
[0143] FIG. 23 is a schematic sectional representation of the foamlike absorption body shown in FIG. 17a, with several suction heads;
[0144] FIG. 24 depicts a wound care device with the built-in absorption body of FIG. 23;
[0145] FIGS. 25a and 25b are flowcharts illustrating operation of a sample operating mode of a device according to the invention, and;
[0146] FIG. 26 depicts a compression bandage in which the device according to the invention can be used.
DETAILED DESCRIPTION OF THE INVENTION
[0147] The foregoing and other features and advantages of the invention will become more apparent from the following detailed description of exemplary embodiments, read in conjunction with the accompanying drawings. The detailed description and drawings are merely illustrative of the invention rather than limiting, the scope of the invention being defined by the appended claims and equivalents thereof.
[0148] While the invention has been described in connection with various embodiments, it will be understood that the invention is capable of further modifications. This application is intended to cover any variations, uses or adaptations of the invention following, in general, the principles of the invention, and including such departures from the present disclosure as, within the known and customary practice within the art to which the invention pertains.
[0149] FIG. 1 is a schematic sectional representation of an example of a wound care device 100 that uses subatmospheric pressure. The wound care device 100 includes a liquid-impervious and water vapor-pervious wound covering element 1, an enclosed absorption body 20 and a device for creating subatmospheric pressure. The device for creating subatmospheric pressure shown in FIG. 1 is a micropump 11. The wound covering element 1 is configured as a flexible film-like membrane. The micropump 11 includes a rectangular flat housing 10, which is provided with a suction opening 16 (see FIG. 3); the suction opening 16 shown in FIG. 1 comprising a check valve 29.
[0150] The micropump 11 in FIG. 1 may be implemented using a piezoelectric membrane pump, which has a low power consumption, compact construction, and very small dimensions, enabling the use of the micropump in portable systems. The micropump 11 may advantageously be arranged directly on the wound covering element 1, since it has a very low weight. The micropump 11 in FIG. 1 plus control unit and optional battery (batteries) may be accommodated in a flat housing 10.
[0151] As shown in FIG. 1, the micropump 11 (which may be of a type manufactured by Bartels Mikrotechnik GmbH, Dortmund, Germany) is arranged on the side of the wound covering element 1 away from the wound and detachably glued to the wound covering element 1. This allows the micropump 11 to be reused if needed, as long as safety precautions such as sterilization are taken. FIG. 1 also depicts a wound cavity 2 bounded by the wound covering element 1 glued onto the patient's skin, and a wound base 9. The absorption body 20 located in the wound cavity 2 includes a segment 30 of a fleecelike textile mat fortified with a superabsorbing substance 24, and a sheath 13.
[0152] FIG. 2 shows a similar wound care device (reference number 200) in which the sheath 13 includes a foamlike inner core instead of the textile mat. A spacer body 23 disposed between the wound covering element 1 and the absorption body 20 allows gases and air to pass through.
[0153] Examples of the placement of the micropump 11 are shown in FIGS. 6 and 7. The wound covering element 1 has an adhesive surface 26 corresponding to the surface area of the flat housing 10. The adhesive surface 26 is covered by a peelable protective film element 27. A marking 25 surrounds the adhesive surface 26 to mark where on the wound covering element 1 (sec FIG. 7) the flat housing 10 of the micropump 11 is to be applied.
[0154] The micropump 11 is shown in FIGS. 3, 4 and 5 in a schematic magnified view. The flat housing 10 may be removably placed on the wound covering element 1 by first peeling off a protective film element 15 revealing an adhesive surface 14 and the suction opening 16. As shown in FIG. 4, the rectangular flat housing 10 is divided into three inner compartments, which include a control module 36, the micropump 11 itself, and a battery compartment 37. The battery compartment 37 holds two button cells 35. FIG. 5 depicts an example of a round flat housing, on which four button cells 35 and the control module 36 are arranged at the periphery.
[0155] As shown in FIG. 8, the flat housing 10 of the micropump 11 may be outfitted with a mini-USB connector sleeve 17 in which to plug a mini-USB connector 18. The mini-USB connector sleeve 17 is in turn connected via a cable 19 to a USB connector 21 for a PC, or a connector for a cigarette lighter. The connection scheme may resemble that of a typical navigation device. It would be advantageous for the connector to the PC to allow an immediate evaluation, such as analysis of the wound exudation, when the micropump is outfitted with a measurement sensor (not shown).
[0156] Another wound care device 300 is shown in FIG. 9c. The micropump 11 lacks a hose, but is in contact with the wound cavity 2 via a flat adapter 3, so that it is not directly connected to the wound covering element 1 (see FIGS. 9a and 9b). The flat adapter 3 consists of two congruent disks 3.1, 3.2, which can be placed on the wound covering element 1 from “above” and “below.” At least one of the two disks 3.1, 3.2 of the flat adapter 3 may be made of plastic, metal, or magnetic foil.
[0157] The disks 3.1, 3.2 can be locked or glued together across the wound covering element 1. However, in terms of tightness, a glue connection is preferred.
[0158] If the upper disk 3.1 is magnetic, the flat housing 10 of the micropump, which is coated with a very thin magnetic foil or with magnetic powder, can simply be laid on the flat adapter 3. In the present case (see FIG. 10a), the flat housing 10 is provided on its side facing the wound covering element 1 with a magnetic powder layer 31 and the upper disk 3.1 with a magnetic foil 32. The flat adapter 3 advantageously improves the positional stability of the removable micropump 11 and simplifies its mounting on the wound covering element 1.
[0159] FIG. 10b depicts another configuration of the magnetic connection. In the wound care device 400 shown in FIG. 10b, the micropump 11 lies beneath an upper sheath segment 13.1 of the sheath 13 of the absorption body 20 facing the wound covering element 1. This allows the micropump 11 to be arranged beneath the skin level at the wound at least in the initial phase of the wound therapy. A pliable wound spacing grid 33 (product SORBION PLUS, manufacturer: SORBION AG, Senden, Germany) is also arranged beneath the absorption body 20. A meshlike textile fortified with silver or copper may optionally be used instead of the wound spacing grid 33. The upper flat side of the flat housing of the micropump 11 and the wound covering element 1 are each provided with magnetic foil 32. A locking connection (not shown) may optionally be used in place of the magnetic foil.
[0160] FIG. 11a and 11b depict a wound care device 500 comprising the wound covering element 1, the micropump 11, and a storage battery 28. The wound care device 500 includes a cable 34 situated in between and electrically connecting these components. The cable 34 has an arc-shaped compensation segment 38 to compensate for changes in length when the volume of the absorption body 20 increases. The wound covering element 1 is divided into a wound treatment area 39 and a battery area 40 separated from each other by peripherally encircling adhesive surfaces 41, 42. This permits both the micropump 11 and the storage battery 28 to be mounted in advance on a wound covering element 1. The storage battery 28 lies outside the wound treatment area 39, and in particular, outside of a wound contour 4.
[0161] FIG. 12 illustrates a wound care device 600 similar to the wound care device 500 shown in FIGS. 11a and 11b. The same components are marked with the same reference numbers. With respect to the wound dressing 600 in FIG. 12, an electrical connection of the micropump 11 to a lithium ion battery 12 is provided by a foil-like printed circuit 6.
[0162] FIGS. 13a and 13b show a wound care device 700 similar to the wound care device 600 shown in FIG. 12. The wound care device 700 in FIGS. 13a and 13b include the micropump 11, the lithium ion battery 12, and printed circuit 6 arranged inside a contour 43 of the absorption body 20. The micropump 11 is locked by a rectangular flat adapter 44, built into the wound covering element 1.
[0163] As shown in FIG. 13b, the absorption body 20 has the mentioned sheath 13. Two superabsorbing textile segments 46, 47 are arranged inside the sheath 13 and in between a smaller sheetlike superabsorbing cellulose mat 45. The differences in area between the textile mats and an encircling seam 50 of the sheath produce desired expansion spaces 48, 49.
[0164] Referring to FIG. 14, another wound covering element 1 has two elastic foil-like flat batteries 51, which are glued onto the wound covering element 1 and which arc electrically connected via the printed circuit 6 to the micropump 11. The flat battery constitutes a new development of electrically conducting polymer foil, which is known in the technical journalism as a “paper battery.”
[0165] The wound covering element 1 shown in FIG. 15 with a format of 10 cm×10 cm consists of an electrically conducting, thin, bendable polymer foil. For this reason, the wound covering element 1 functions like a flat battery 51. By the printed circuit 6, the micropump 11 centrally arranged on the flat battery 51 is connected to poles 52 (plus, minus), which are embedded in the polymer foil.
[0166] FIGS. 16a and 16b show a flat, circular wound care device 800 having an annular sheathed absorption body 7, the centrally arranged micropump 11 and the printed circuit 6. The wound covering element 1 is implemented using a circular flat battery 51. The micropump 11 is electrically connected to the poles 52 across the printed circuit 6. The wound covering element 1 and an annular film segment 53 facing the wound forms a sheath 5, which has a peripheral adhesive surface 54.
[0167] Another wound care device 900 is shown in FIG. 17d. The wound care device 900 has a foamlike absorption body 22, made of polyurethane, in the middle of which is cut out a rectangular seat 21 (see FIGS. 17b and 17c) to accommodate the micropump 11, such that the upper flat side of the micropump 11 is flush with a surface 55 of the foamlike absorption body. Moreover, a release-adhesive region 56 is provided on the wound covering element 1, which roughly coincides with the seat 21. The other region of the wound covering element 1 is not joined to the absorption body 22. In a through opening 57 of the absorption body 22 is placed a check valve 58. Between the absorption body 22 and the wound base 9 lies the wound spacing grid 33.
[0168] FIG. 18 shows a wound care device 1000 in which the micropump 11 is placed inside a foil-like sheath 59 formed by the wound covering element 1 and a “lower” sheath segment 60 facing the wound. The lower sheath segment 60 is permeable to gas and liquid, while the wound covering element 1 is only permeable to water vapor. The absorption body 20 lies beneath the sheath 59.
[0169] FIGS. 19a to 19c show a pouchlike wound care device 1100 having a pouch 61 in the manner of a familiar drainage collector with a swiveling window flap 62 (see FIG. 19b). The pouch 61 is folded together at its periphery 63. The micropump 11 is arranged in the middle on the window flap 62 and electrically connected to a battery, not shown. The battery function can be provided by the transparent foil element (flat battery) of the window flap 62 (not shown). The inner surface of the pouch 61 is lined or coated with the superabsorbing substance 24 (see FIG. 19b). The superabsorbing substance 24 can be gel-like or interspersed in a textile material.
[0170] As shown in FIG. 19c, the pouch 61 has a foil-like, glue-coated bottom 64, which is cut out according to the wound contour 9, so that a central bottom segment 65 can be peeled off and the bottom 64 glued by its peripheral adhesive surface 66 to the skin of the patient. Inside the pouch 61 lies the absorption body 20, which can be removed through the swiveling window flap 62 installed therein. Another embodiment (not shown) has a bottom made from the mentioned wound spacing grid 33 (product SORBION PLUS, manufacturer: SORBION AG) and provided with an encircling adhesive surface.
[0171] FIG. 20 shows another example of a wound care device 1200, which is similar to the wound care device 100 shown in FIG. 1. The flat housing 10 of the micropump 11 is arranged on the side of the wound covering element 1 away from the wound and removably glued to wound covering element there. Beneath the sheathed absorption body 20 lies the wound spacing grid 33, which is oriented with its smooth surface 67 toward the wound base 9. At first the wound spacing grid 33 and then the absorption body 20 (products: SORBION PLUS and SORBION SACHET, manufacturer: SORBION, Senden, Germany) are placed on the wound base 9. The foil-like wound covering element 1 is glued tightly to the skin of the patient around the wound.
[0172] The micropump 11 is removably glued to the wound covering element 1. The micropump 11 contains the batteries of the type described with reference to FIG. 4. The micropump 11 is additionally connected across a coaxial connector 68 and cable 69 to an outside power source 73. The energy source can be a storage battery or power mains.
[0173] The micropump 11 is connected across a three-way valve 70 and vacuum line 71 to an outside vacuum pump 72. The micropump 11 is first blocked by the three-way valve 70. The micropump 11 is not working. By activating the outside vacuum pump 72, the air is almost completely evacuated from the wound cavity 2. By adjusting the three-way valve 70, the outside vacuum pump 72 is automatically shut off. At this time, the micropump 11 takes over the suction function. The partial vacuum achieved by the outside vacuum pump 72 is maintained by the micropump 11. The system can be outfitted with a programmed interval switching, which sets the micropump 11 in motion as needed. This interval switching can be connected to the control module or be part of the control module.
[0174] The control module can be remote controlled (for example, by the patient or nursing personnel). The remote control can be activated by a traditional remote control.
[0175] FIG. 21 shows another example embodiment of the wound care device 1300. In the wound care device 1300 in FIG. 21, the absorption body is left out for clarity of the drawing. Two micropumps 11 are arranged on the wound covering element 1. One of the micropumps 11 operates as the vacuum pump and the other operates as a dispensing pump for medication or provides a flushing function. The micropumps 11 are reversible. The valves on the micropump determine in which direction the fluids are delivered from the pump.
[0176] FIG. 22 shows a wound care device 1400 in which a suction head 74 is fastened to the wound covering element 1. The micropump 11 sits on the suction head 74 and not on the wound covering. The micropump 11 can be removably fastened by a locking or snap connection, by a glue connection, or magnetically to the suction head 74. The suction head 74 is provided with a three-way valve 75, to which the outside vacuum pump 72 is connected via the 71 vacuum line. The schematically represented suction head 74 can be highly flattened. Otherwise, the wound care device 1400 is characterized by the same construction and the same function as already described in FIG. 20.
[0177] FIG. 23 shows an absorption body 22.1 made from a soft polyurethane foam, similar to the absorption body 22 (see FIG. 17). The difference between the two absorption bodies 22 and 22.1 is that the latter is outfitted with several small suction heads 76 distributed on its underside, each of which is connected by a line 77 to the opening 57 worked into the foam with a check valve 58. The “mini suction heads” contribute to an improved pressure distribution.
[0178] The absorption body 22.1 according to FIG. 24 is part of a wound care device 1500. The wound care device 1500 furthermore contains the mentioned wound covering element 1, the micropump 11 placed in the seat 21 of the absorption body 22.1, and the absorption body 20 facing the wound base (not shown). The foamlike absorption body 22.1 has an essentially smaller suction force than that of the absorption body 20. Furthermore, it plays the role of a buffer between the micropump and the lower absorption body 20. A small-pore membrane, not shown, can also lie between the two absorption bodies 22 and 22.1. The micropump 11 is connected to the outside vacuum pump 72 across a three-way valve 78 arranged on the micropump and the vacuum line 71. The micropump 11 can have at least one button cell and/or be connected to an outside power source (see FIG. 20).
[0179] FIGS. 25a and 25b illustrate operation of an example method for an example operating mode of a device according to the invention. The method illustrated in FIGS. 25a and 25b may be performed using an example of the wound care device that includes a control module and a user interface having buttons to allow the user to enter control function. FIGS. 25a and 25b illustrate operation of the device in attaining a pressure of around 106 mbar to 113 mbar. It is noted that the pressure levels indicated are shown as examples and that operation of the method may involve any other pressure levels as may be selected by the user.
[0180] The method begins at the program start at step 00 in FIG. 25a. The method proceeds to step 01 in which the device is on standby. A decision block 02, typically in response to an event, the system checks if Button 1 was pressed. If Button 1 was not pressed, control returns to step 01. If Button 1 was pressed, control transfers to step 03 to begin therapy. The pump is activated, a timer is set to 0, and control is transferred to decision block 04. At decision block 04, the system checks if Button 1 was pressed. If it was not pressed, control proceeds to decision block 05. If Button 1 was pressed, control is transferred back to step 01. At decision block 05, the system is checked to determine if a partial vacuum of 113 mbar has been reached. If a partial vacuum of 113 mbar has not been reached, control transfers to decision block 06, which checks if a 5 second timer has timed out. If the partial vacuum of 113 mbar has been reached, control transfers to step 11 in which normal operation is indicated via a blinking green light. At this point, the pump may be turned off. From step 11, control transfers to decision block 12, which checks the partial vacuum to determine if the partial vacuum still exceeds 106 mbar. If partial vacuum exceeds 106 mbar, control transfers to decision block 13, which checks for Button 1. If Button 1 has been pressed, control returns to step 01. If Button 1 has not been pressed, control is transferred to step 11 to continue normal operation. At decision block 12, if the partial vacuum does not exceed 106 mbar, control is transferred to step 03, which activates the pump.
[0181] At decision block 06, if the five second timer has timed out, a counter is incremented at step 07. If the five second timer has not timed out at decision block 06, control is transferred to step 03 to continue activation of the pump. After step 07, the timer is checked to see if a second attempt to reach 113 mbar has been reached at decision block 08. If the second attempt has not been made, control returns to step 03 to continue activation of the pump. If the second attempt has been reached, an error is displayed at step 09 with a blinking red LED. At decision block 10, the system checks if button 1 has been pressed and, if so, transfers control back up to step 01. If button 1 has not been pressed, the error indication continues at step 09.
[0182] FIG. 25b also depicts a flowchart of a subroutine for checking the battery level. The subroutine begins at step 20. At decision block 21, the operating voltage is checked. If the operating voltage is less than 5 V., a battery display blinks at step 22 and then ends at step 23. If the operating voltage is not under 5 V., the subroutine ends at step 23.
[0183] It will be understood that the foregoing description of numerous implementations has been presented for purposes of illustration and description. It is not exhaustive and does not limit the claimed inventions to the precise forms disclosed. Modifications and variations are possible in light of the above description or may be acquired from practicing the invention. The claims and their equivalents define the scope of the invention.
LIST OF REFERENCE SYMBOLS
[0184] 1 Wound covering element
[0185] 2 Wound cavity
[0186] 3 Flat adapter
[0187] 4 Wound contour
[0188] 5 Sheath
[0189] 6 Printed circuit
[0190] 7 Absorption body
[0191] 9 Wound base
[0192] 10 Flat housing
[0193] 11 Micropump
[0194] 12 Lithium ion battery
[0195] 13 Sheath
[0196] 13.1 Sheath segment
[0197] 14 Adhesive surface
[0198] 15 Protective film element
[0199] 16 Suction opening
[0200] 17 Mini-USB connector sleeve
[0201] 18 Mini-USB connector
[0202] 19 Cable
[0203] 20 Absorption body
[0204] 21 Seat
[0205] 22 Absorption body
[0206] 22.1 Absorption body
[0207] 23 Spacer body
[0208] 24 Superabsorbing substance
[0209] 25 Marking
[0210] 26 Adhesive surface
[0211] 27 Protective film element
[0212] 28 Storage battery
[0213] 29 Check valve
[0214] 30 Segment (textile)
[0215] 31 Magnetic powder layer
[0216] 32 Magnetic film
[0217] 33 Wound spacing grid
[0218] 34 Cable
[0219] 35 Button cell
[0220] 36 Control module
[0221] 37 Battery compartment
[0222] 38 Compensation segment
[0223] 39 Wound treatment area
[0224] 40 Battery area 40
[0225] 41, 42 Adhesive surface
[0226] 43 Contour
[0227] 44 Flat adapter
[0228] 45 Cellulose mat
[0229] 46, 47 Textile segment
[0230] 48, 49 Expansion space
[0231] 50 Seam
[0232] 51 Flat battery (“paper battery”)
[0233] 52 Pole
[0234] 53 Film segment
[0235] 54 Adhesive surface
[0236] 55 Surface
[0237] 56 Release-adhesive area
[0238] 57 Opening
[0239] 58 Check valve
[0240] 59 Sheath
[0241] 60 Sheath segment
[0242] 61 Pouch
[0243] 62 Window flap
[0244] 63 Periphery
[0245] 64 Bottom
[0246] 65 Bottom segment
[0247] 66 Peripheral adhesive surface
[0248] 67 Surface
[0249] 68 Connection
[0250] 69 Cable
[0251] 70 Three-way valve
[0252] 71 Vacuum line
[0253] 72 Outside vacuum pump
[0254] 73 Outside power source
[0255] 74 Suction head
[0256] 75 Three-way valve
[0257] 76 Suction head
[0258] 77 Line
[0259] 78 Three-way valve
[0260] 79 Opening
[0261] 100; 200; 300 Wound care device
[0262] 400; 500; 600 Wound care device
[0263] 700; 800; 900 Wound care device
[0264] 1000; 1100 Wound care device
[0265] 1200; 1300 Wound care device
[0266] 1400; 1500 Wound care device
