US20110034894A1 - Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure - Google Patents
Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure Download PDFInfo
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- US20110034894A1 US20110034894A1 US12/856,287 US85628710A US2011034894A1 US 20110034894 A1 US20110034894 A1 US 20110034894A1 US 85628710 A US85628710 A US 85628710A US 2011034894 A1 US2011034894 A1 US 2011034894A1
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- Prior art keywords
- wound
- dressing
- polymers
- reduced pressure
- space
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Links
- 208000027418 Wounds and injury Diseases 0.000 title claims abstract description 55
- 241001465754 Metazoa Species 0.000 title claims abstract description 5
- 206010052428 Wound Diseases 0.000 title abstract description 46
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 206010048629 Wound secretion Diseases 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 210000004400 mucous membrane Anatomy 0.000 abstract description 3
- 210000000416 exudates and transudate Anatomy 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 description 13
- 239000002245 particle Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010999 medical injection Methods 0.000 description 1
- 230000003641 microbiacidal effect Effects 0.000 description 1
- 210000003097 mucus Anatomy 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229940047670 sodium acrylate Drugs 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000029663 wound healing Effects 0.000 description 1
Images
Classifications
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- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/00051—Accessories for dressings
- A61F13/00063—Accessories for dressings comprising medicaments or additives, e.g. odor control, PH control, debriding, antimicrobic
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- A61F13/0209—Adhesive plasters or dressings having a fluid handling member the fluid handling member being absorbent fibrous layer, e.g. woven or nonwoven absorbent pad, island dressings comprising superabsorbent material
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- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
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- A61M1/67—Containers incorporating a piston-type member to create suction, e.g. syringes
Definitions
- the invention relates to a multi-component dressing for treating wounds of the human or animal body using a reduced pressure, having a wound-covering element for mounting the dressing at the surface of the skin and mucous membrane and at least one connecting site, which is in contact with the wound space and over which the materials, in the wound space, can be evacuated.
- Such a multi-component dressing is known from U.S. Pat. No. 5,636,643. It is a disadvantage of the known multi-component dressing that the wound secretion can be withdrawn from the region of the wound exclusively over a hose line.
- a multi-component dressing of the type named above which is characterized in that this dressing has super-absorbing polymers, the absorbed wound secretions remaining bound to the polymers in the wound space, until the latter are removed from the wound space, the polymers, due to their binding capacity, supporting reciprocal synergies with the sub-atmospheric pressures.
- All known polymers preferably however those from the group of sodium polyacrylates, may be selected as polymers.
- the multi-component dressing may be provided with at least one enveloping absorption body, which has at least one layer of a textile section, which is interspersed with super-absorbing particles.
- the absorption body may be surrounded by a liquid-permeable envelope, which, in turn, has pores, the size of which essentially does not exceed that of the super-absorbing particles.
- the reduced pressure, generated on the outside, is passed over a hose line or optionally over a suction head into the wound space, where it supports desired synergies with the polymers.
- FIGS. 1 a to 1 d show a multi-component dressing, glued to the skin of the patient about a wound, in a diagrammatic section.
- FIG. 2 shows a different embodiment of the multi-component dressing in a diagrammatic section.
- FIG. 3 shows the multi-component dressing of FIG. 1 , however, with two connection sites, also in a diagrammatic section.
- FIGS. 1 a to 1 d show a multi-component dressing 100 for treating wounds using a reduced pressure, consisting of a film-like wound-covering element 4 , an optional film element 1 , which is compatible with the mucous membrane and, lying between these, an absorption body 2 .
- the multi-component dressing is somewhat rectangular and has rounded corners (not shown).
- the wound-covering element 4 consisting of a liquid-impermeable, transparent film, is a relatively stiff, that is, it does not shrink when not in use and when in contact with the body of the patient.
- the wound-covering element 4 is provided with an adhesive surface 6 for gluing the multi-component dressing to the skin of the patient.
- the absorption body 2 consists of a layer of nonwoven textile material, which comprises cellulose fibers and is interspersed with super-absorbing particles (Super-Absorbing-Polymers, SAP), in the present case, with a copolymer of sodium acrylate and acrylic acid.
- SAP super-absorbing particles
- the absorption body 2 is enriched with nanocrystalline, silver-containing substances, which have a microbiocidal effect.
- the cellulose fibers act as an interim storage system for the liquid quantities, which are acted upon spontaneously, and as a sort of transporting means, with which the wound secretions reach the super-absorber.
- the absorption body 2 is surrounded by a liquid-permeable, also textile envelope 11 , which has been welded closed ultrasonically with a peripheral seam 7 .
- the envelope has a peripheral overhang 30 of envelope material, which is located between the ultrasonic seam 7 and an outermost circumference 11 of the envelope. The overhang 30 is to prevent painful contact between the wound and the seam.
- the film element 1 facing the wound, is made from a liquid-permeable, extremely thin, mucus membrane-compatible material.
- the film element 1 also contributes to protecting against contact with the ultrasonic seam 7 .
- a connecting site 5 . 1 for evacuating gases and checking the vacuum is provided at the wound-covering element 4 .
- the connecting site 5 . 1 is disposed approximately centrally. However, it may be located at any place on the wound-covering element, for example, in the vicinity of the periphery 8 , as has been shown in FIGS. 2 and 3 .
- the absorption body 2 which is to be placed in the wound space 10 , has an initial volume V 1 , which enlarges in the course of the absorption process and assumes a final volume V 2 , with which the wound space 10 and, with that, the wound defects can be filled during the swelling process.
- Active substances which affect the wound-healing process 1 , such as nanocrystalline silver particles, are applied to the material of the absorption body 2 .
- the absorption body 2 is glued over its whole surface to the wound-covering element 4 , a periphery 8 at the wound-covering element being left free.
- the multi-component dressing of FIG. 3 has two connecting sites 5 . 1 , 5 . 2 , of which the central one is for evacuating air and the second, lateral one for controlling the reduced pressure.
- a vacuum bottle 20 is connected over a hose line 15 to the central connecting site 5 . 1 .
- an intermittent circuit 18 is connected, also over a connecting hose 19 , with the lateral connecting site 5 . 2 .
- FIG. 2 shows a similar dressing 300 having a controlled source of vacuum 23 .
- a chronic wound 16 is covered completely by gluing the multi-component dressing 100 of FIG. 1 to the skin of the patient.
- a pull-off film element (not shown), and exposes a peripheral adhesive surface 6 at the underside of the wound-covering element 4 , was removed.
- the mucous membrane-compatible film element 1 and then the flat absorption body 2 together with its envelope were placed carefully, with sterilized forceps, on the surface of the wound. Only then was the wound covering element 4 glued around the wound.
- a medical injection syringe 26 was connected over the aforementioned hose line 15 with the central connecting site 5 .
- FIG. 1 which is provided with a simple valve 25 , as shown in FIG. 1 a. Since the space 10 is sealed, the gases in the space can be evacuated with the aid of the injection syringe. This state is shown in FIG. 1 b.
- the flat elements of the device lie in contact with the surface of the wound.
- the reduced pressure measured meanwhile with the aid of a vacuum indicator (now shown), was about 100 mm Hg.
- the cylindrical casing surface of the injection syringe may be provided with an appropriate, experimentally defined, reduced pressure scale.
- the wound secretions, emerging from the wound reach the absorption body 2 and bring about a slowly increasing compression beneath the wound-covering element 4 .
- the volume of the absorption body 2 increases greatly (see FIG. 1 c ).
- the device 100 is removed carefully from the region of the wound by lifting it with the help of the forceps. If necessary, a new multi-component dressing can be glued to the wound.
Abstract
The invention relates to a multi-component dressing (100) for treating wounds of the human or animal body using a reduced pressure, having a wound-covering element (4) for mounting the dressing (100) at the surface of the skin and the mucous membrane and at least one connecting site (5), which is in contact with the wound space (10) and over which the materials in the wound space (10) can be evacuated. The multi-component dressing has super-absorbing polymers, the absorbed wound secretions remaining bound to polymers in the wound space until the latter are removed from the wound space and the polymers, due to their binding capacity, supporting reciprocal synergies with the sub-atmospheric pressures. Wound exudate, promoted by the reduced pressure, is also stored and controlled by polymerized granulates.
Description
- This application is a continuation of U.S. application Ser. No. 11/666,848, filed on Jul. 5, 2007, which is the national stage of PCT/EP2005/011701, filed on Nov. 2, 2005, which claims the benefit of
German application 20 2004 017 052.3, filed on Nov. 2, 2004, the contents of all of the foregoing applications are hereby incorporated by reference in their entirety - The invention relates to a multi-component dressing for treating wounds of the human or animal body using a reduced pressure, having a wound-covering element for mounting the dressing at the surface of the skin and mucous membrane and at least one connecting site, which is in contact with the wound space and over which the materials, in the wound space, can be evacuated.
- Such a multi-component dressing is known from U.S. Pat. No. 5,636,643. It is a disadvantage of the known multi-component dressing that the wound secretion can be withdrawn from the region of the wound exclusively over a hose line.
- It is an object of the invention to conceive a novel multi-component dressing, for which the wound secretions can remain in the region of the wound without these wound secretions being able to develop their harmful properties in the region of the wound.
- This objective is accomplished by a multi-component dressing of the type named above, which is characterized in that this dressing has super-absorbing polymers, the absorbed wound secretions remaining bound to the polymers in the wound space, until the latter are removed from the wound space, the polymers, due to their binding capacity, supporting reciprocal synergies with the sub-atmospheric pressures.
- All known polymers, preferably however those from the group of sodium polyacrylates, may be selected as polymers.
- The multi-component dressing may be provided with at least one enveloping absorption body, which has at least one layer of a textile section, which is interspersed with super-absorbing particles.
- The absorption body may be surrounded by a liquid-permeable envelope, which, in turn, has pores, the size of which essentially does not exceed that of the super-absorbing particles. The reduced pressure, generated on the outside, is passed over a hose line or optionally over a suction head into the wound space, where it supports desired synergies with the polymers.
- For a full understanding of the present invention, reference should now be made to the following detailed description of the preferred embodiments of the invention as illustrated in the accompanying drawings.
-
FIGS. 1 a to 1 d show a multi-component dressing, glued to the skin of the patient about a wound, in a diagrammatic section. -
FIG. 2 shows a different embodiment of the multi-component dressing in a diagrammatic section. -
FIG. 3 shows the multi-component dressing ofFIG. 1 , however, with two connection sites, also in a diagrammatic section. -
FIGS. 1 a to 1 d show amulti-component dressing 100 for treating wounds using a reduced pressure, consisting of a film-like wound-coveringelement 4, anoptional film element 1, which is compatible with the mucous membrane and, lying between these, anabsorption body 2. In a plan view of its flat side, the multi-component dressing is somewhat rectangular and has rounded corners (not shown). - The wound-covering
element 4, consisting of a liquid-impermeable, transparent film, is a relatively stiff, that is, it does not shrink when not in use and when in contact with the body of the patient. At itsperiphery 8, the wound-coveringelement 4 is provided with anadhesive surface 6 for gluing the multi-component dressing to the skin of the patient. - The
absorption body 2 consists of a layer of nonwoven textile material, which comprises cellulose fibers and is interspersed with super-absorbing particles (Super-Absorbing-Polymers, SAP), in the present case, with a copolymer of sodium acrylate and acrylic acid. In addition, theabsorption body 2 is enriched with nanocrystalline, silver-containing substances, which have a microbiocidal effect. The cellulose fibers act as an interim storage system for the liquid quantities, which are acted upon spontaneously, and as a sort of transporting means, with which the wound secretions reach the super-absorber. - The
absorption body 2 is surrounded by a liquid-permeable, alsotextile envelope 11, which has been welded closed ultrasonically with a peripheral seam 7. As can be inferred particularly fromFIG. 1 d, the envelope has aperipheral overhang 30 of envelope material, which is located between the ultrasonic seam 7 and anoutermost circumference 11 of the envelope. Theoverhang 30 is to prevent painful contact between the wound and the seam. - The
film element 1, facing the wound, is made from a liquid-permeable, extremely thin, mucus membrane-compatible material. Thefilm element 1 also contributes to protecting against contact with the ultrasonic seam 7. - Moreover, a connecting site 5.1 for evacuating gases and checking the vacuum is provided at the wound-covering
element 4. According toFIGS. 1 a to 1 d and 2, the connecting site 5.1 is disposed approximately centrally. However, it may be located at any place on the wound-covering element, for example, in the vicinity of theperiphery 8, as has been shown inFIGS. 2 and 3 . - The
absorption body 2, which is to be placed in thewound space 10, has an initial volume V1, which enlarges in the course of the absorption process and assumes a final volume V2, with which thewound space 10 and, with that, the wound defects can be filled during the swelling process. - Active substances, which affect the wound-
healing process 1, such as nanocrystalline silver particles, are applied to the material of theabsorption body 2. - As shown by
FIG. 1 d, theabsorption body 2 is glued over its whole surface to the wound-coveringelement 4, aperiphery 8 at the wound-covering element being left free. - The multi-component dressing of
FIG. 3 has two connecting sites 5.1, 5.2, of which the central one is for evacuating air and the second, lateral one for controlling the reduced pressure. Avacuum bottle 20 is connected over ahose line 15 to the central connecting site 5.1. On the other hand, anintermittent circuit 18 is connected, also over a connectinghose 19, with the lateral connecting site 5.2.FIG. 2 shows asimilar dressing 300 having a controlled source ofvacuum 23. - A
chronic wound 16 is covered completely by gluing themulti-component dressing 100 ofFIG. 1 to the skin of the patient. Previously, a pull-off film element (not shown), and exposes a peripheraladhesive surface 6 at the underside of the wound-coveringelement 4, was removed. To begin with, the mucous membrane-compatible film element 1 and then theflat absorption body 2 together with its envelope were placed carefully, with sterilized forceps, on the surface of the wound. Only then was thewound covering element 4 glued around the wound. By gluing the device to the skin, awound space 10 is formed between thewound covering element 4 and the surface of the wound. Amedical injection syringe 26 was connected over theaforementioned hose line 15 with the central connecting site 5.1, which is provided with asimple valve 25, as shown inFIG. 1 a. Since thespace 10 is sealed, the gases in the space can be evacuated with the aid of the injection syringe. This state is shown inFIG. 1 b. The flat elements of the device lie in contact with the surface of the wound. The reduced pressure, measured meanwhile with the aid of a vacuum indicator (now shown), was about 100 mm Hg. For this purpose, the cylindrical casing surface of the injection syringe may be provided with an appropriate, experimentally defined, reduced pressure scale. The wound secretions, emerging from the wound, reach theabsorption body 2 and bring about a slowly increasing compression beneath the wound-coveringelement 4. After wound secretions are aspired, the volume of theabsorption body 2 increases greatly (seeFIG. 1 c). After use, thedevice 100 is removed carefully from the region of the wound by lifting it with the help of the forceps. If necessary, a new multi-component dressing can be glued to the wound. - There has thus been shown and described a novel multi-component dressing for treating wounds of the human or animal body using a reduced pressure which fulfills all the objects and advantages sought therefor. Many changes, modifications, variations and other uses and applications of the subject invention will, however, become apparent to those skilled in the art after considering this specification and the accompanying drawings which disclose the preferred embodiments thereof. All such changes, modifications, variations and other uses and applications which do not depart from the spirit and scope of the invention are deemed to be covered by the invention, which is to be limited only by the claims which follow.
Claims (1)
1. A multi-component wound dressing for treating a wound on a human or animal body using a reduced pressure, said dressing comprising a wound covering element adapted to be applied to the surface of the skin to cover the wound, thereby forming a wound space, said wound covering element having
at least one connected through which material in the wound space can be evacuated,
wherein
the dressing has super-absorbing polymers, which absorb secretors in the wound space
the absorbed wound secretions, bound to the polymers, remain in the wound space until the polymers are removed; and
the polymers, due to their bonding capacity, support reciprocal synergies with the sub-atmospheric pressures.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US12/856,287 US20110034894A1 (en) | 2004-11-02 | 2010-08-13 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
US13/315,639 US20120143157A1 (en) | 2004-11-02 | 2011-12-09 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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DE202004017052U DE202004017052U1 (en) | 2004-11-02 | 2004-11-02 | Device for wound treatment using negative pressure |
DE202004017052.3 | 2004-11-02 | ||
PCT/EP2005/011701 WO2006048246A1 (en) | 2004-11-02 | 2005-11-02 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
US66684807A | 2007-07-05 | 2007-07-05 | |
US12/856,287 US20110034894A1 (en) | 2004-11-02 | 2010-08-13 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
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PCT/EP2005/011701 Continuation WO2006048246A1 (en) | 2004-11-02 | 2005-11-02 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
US66684807A Continuation | 2004-11-02 | 2007-07-05 |
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US13/315,639 Continuation US20120143157A1 (en) | 2004-11-02 | 2011-12-09 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
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US20110034894A1 true US20110034894A1 (en) | 2011-02-10 |
Family
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Application Number | Title | Priority Date | Filing Date |
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US11/666,848 Active US7775998B2 (en) | 2004-11-02 | 2005-11-02 | Multi-component dressing for treating wounds of the human or animal body using a reduced pressure |
US11/666,958 Active US7959624B2 (en) | 2004-11-02 | 2005-11-02 | Device for the treatment of wounds using a vacuum |
US12/856,287 Abandoned US20110034894A1 (en) | 2004-11-02 | 2010-08-13 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
US13/315,639 Abandoned US20120143157A1 (en) | 2004-11-02 | 2011-12-09 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
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US11/666,958 Active US7959624B2 (en) | 2004-11-02 | 2005-11-02 | Device for the treatment of wounds using a vacuum |
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US13/315,639 Abandoned US20120143157A1 (en) | 2004-11-02 | 2011-12-09 | Multi-component dressing for wound treatment on the human or animal body with application of reduced pressure |
Country Status (10)
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US (4) | US7775998B2 (en) |
EP (3) | EP1807031B2 (en) |
CN (2) | CN101052364B (en) |
AT (1) | ATE475391T1 (en) |
AU (2) | AU2005300731B2 (en) |
CA (2) | CA2585716C (en) |
DE (3) | DE202004017052U1 (en) |
DK (1) | DK1807031T3 (en) |
ES (1) | ES2348958T3 (en) |
WO (2) | WO2006048246A1 (en) |
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Also Published As
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US20120143157A1 (en) | 2012-06-07 |
US7775998B2 (en) | 2010-08-17 |
EP2781208A1 (en) | 2014-09-24 |
CN101052364B (en) | 2010-06-09 |
DE202004017052U1 (en) | 2005-06-09 |
CN101052365B (en) | 2010-06-23 |
EP1807031B1 (en) | 2010-07-28 |
EP1807032B1 (en) | 2017-07-05 |
WO2006048246A1 (en) | 2006-05-11 |
CA2586650C (en) | 2014-10-28 |
DK1807031T3 (en) | 2010-11-22 |
CA2586650A1 (en) | 2006-05-11 |
EP1807031A1 (en) | 2007-07-18 |
WO2006048240A1 (en) | 2006-05-11 |
CN101052364A (en) | 2007-10-10 |
AU2005300731A1 (en) | 2006-05-11 |
EP1807032A1 (en) | 2007-07-18 |
CN101052365A (en) | 2007-10-10 |
EP2781208B1 (en) | 2017-08-16 |
US20080004559A1 (en) | 2008-01-03 |
AU2005300725A1 (en) | 2006-05-11 |
DE202005021932U1 (en) | 2011-10-05 |
ATE475391T1 (en) | 2010-08-15 |
CA2585716A1 (en) | 2006-05-11 |
US7959624B2 (en) | 2011-06-14 |
AU2005300725B2 (en) | 2012-09-13 |
US20080009812A1 (en) | 2008-01-10 |
EP1807031B2 (en) | 2018-05-30 |
AU2005300731B2 (en) | 2012-07-05 |
CA2585716C (en) | 2014-06-03 |
DE502005010018D1 (en) | 2010-09-09 |
ES2348958T3 (en) | 2010-12-17 |
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