AU684454B2 - Dressing material having a polymeric fibre core - Google Patents
Dressing material having a polymeric fibre core Download PDFInfo
- Publication number
- AU684454B2 AU684454B2 AU12489/92A AU1248992A AU684454B2 AU 684454 B2 AU684454 B2 AU 684454B2 AU 12489/92 A AU12489/92 A AU 12489/92A AU 1248992 A AU1248992 A AU 1248992A AU 684454 B2 AU684454 B2 AU 684454B2
- Authority
- AU
- Australia
- Prior art keywords
- sleeve
- product according
- core
- dressing
- wound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 239000000463 material Substances 0.000 title description 3
- 239000000835 fiber Substances 0.000 title description 2
- 206010052428 Wound Diseases 0.000 claims description 25
- 208000027418 Wounds and injury Diseases 0.000 claims description 25
- 239000013060 biological fluid Substances 0.000 claims description 16
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 claims description 11
- 229940072056 alginate Drugs 0.000 claims description 11
- 235000010443 alginic acid Nutrition 0.000 claims description 11
- 229920000615 alginic acid Polymers 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000011575 calcium Substances 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 150000002739 metals Chemical class 0.000 claims description 4
- 241001237728 Precis Species 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000003619 fibrillary effect Effects 0.000 description 3
- 230000000740 bleeding effect Effects 0.000 description 2
- 235000010410 calcium alginate Nutrition 0.000 description 2
- 229960002681 calcium alginate Drugs 0.000 description 2
- 239000000648 calcium alginate Substances 0.000 description 2
- OKHHGHGGPDJQHR-YMOPUZKJSA-L calcium;(2s,3s,4s,5s,6r)-6-[(2r,3s,4r,5s,6r)-2-carboxy-6-[(2r,3s,4r,5s,6r)-2-carboxylato-4,5,6-trihydroxyoxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-3,4,5-trihydroxyoxane-2-carboxylate Chemical compound [Ca+2].O[C@@H]1[C@H](O)[C@H](O)O[C@@H](C([O-])=O)[C@H]1O[C@H]1[C@@H](O)[C@@H](O)[C@H](O[C@H]2[C@H]([C@@H](O)[C@H](O)[C@H](O2)C([O-])=O)O)[C@H](C(O)=O)O1 OKHHGHGGPDJQHR-YMOPUZKJSA-L 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 208000004210 Pressure Ulcer Diseases 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 235000003560 Valerianella locusta Nutrition 0.000 description 1
- 240000004668 Valerianella locusta Species 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 210000000416 exudates and transudate Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000037390 scarring Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/36—Surgical swabs, e.g. for absorbency or packing body cavities during surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00089—Wound bandages
- A61F2013/00093—Wound bandages tubular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00089—Wound bandages
- A61F2013/00093—Wound bandages tubular
- A61F2013/00097—Wound bandages tubular net structure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00089—Wound bandages
- A61F2013/00217—Wound bandages not adhering to the wound
- A61F2013/00221—Wound bandages not adhering to the wound biodegradable, non-irritating
- A61F2013/00225—Wound bandages not adhering to the wound biodegradable, non-irritating with non-degradable reinforcing layer, net or mesh
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00089—Wound bandages
- A61F2013/00217—Wound bandages not adhering to the wound
- A61F2013/00229—Wound bandages not adhering to the wound with alginate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F2013/00361—Plasters
- A61F2013/00365—Plasters use
- A61F2013/0054—Plasters use for deep wounds
Landscapes
- Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Materials For Medical Uses (AREA)
Description
*OPI 'DATE 01/'09/93 AOJP DATE 28/10/93 APPLN. ID 12489/92 ~1111111IN 11 Ali PCT NUMBER PCT/ FR92/00063 1111111111111111111111111 1111.in 1 n 111n 'i AU91 2489 .'ES(lCT) (51) Classification internationale des brevets 5 (11) Nisnit-ro de publication internationaic: ~WO 93/14724 A61F 13/00, 13/20 Al (43) Date de publication internatioi.azie: 5 aoili 1993 (05,08,93) (21) Num~ro de la demnande internationale: PCT/FF,92/00063 (22) Date de d~p6t international: 24 janvier 1992 (24.01,92) (71) D~posant (pour tous les Etats d~sign~s sauf US): SOCIETE PRECIS [FR/FR]; 43, rue de Neuilly, F-92000 Nanterre
(FR).
(72) Inventeur; et Inventeur/Diposant (US seulemen) :IBAR] KOSKY, Michel [FR/FR]; 57, rue Vaneau, F-75007 Paris (FR).
(74) Mandataires: BLOCH-, Gerard etc, Conseils en Proprikt6 Industrielle, 2, square de 'Avenue-du- Bois, F-75116 Paris (FR).
(81) Etats d~sign~s: AU, BR, CA, JP, KR, US, brevet europ~en (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE).
Publ~e Avec rapport de recherche internationate 'iz' (54)Title: DRESSING MATERIAL HAVING A POLYMERIC FIBRE CORE (54) Titre: PRODUIT DE PANSEMENT A AME DE FIBRES EN POLYMERE (57) Abstract A dressing core in the form of a cylindrical tuft is surrounded by a sheath 3) for supporting its mechanical structure.
The sheath which may consist of threads is permeable to the biological fluids of wounds and biocompatible therewith.
The dressing is particularly suitable for deep wounds since it is readily removable therefrom, (57) Abrkg6 L'fime en forme de mache cylindrique, du pansement est entour~e d'une enveloppe 3) de maintien de la structure m6cs~nique de l'Ame. L'enveloppe qui peut 6tre constitute de fils est permeable au liquide biologique des plales ct biocoinpatible avec, des plaics. Le pansement s'applique bien a' des plaics profondes desquelles il peut facifement tre reflr6.
F P C K) 1 DRESSING PRODUCT WITH A CORE OF POLYMER FIBRES The present invention relates to a dressing product or dressing for a wound with biological fluid, comprising, in a substantially cylindrical form, a core of fibres of a spinnable polymer.
Dressings of this type, generally in a pack form, are often used for weeping wounds, particularly deeps ones such as bleeding cavities like bedsores or other, post-operative wounds.
The polymer is often an alginate of a metal selected from the group of multivalent metals, with the exception of magnesium, and in particular alginate of calcium.
A wound causes a loss of substance or of biological fluid (blood or exudate), When applied in a wound the dressing begins to absorb the oozing or bleeding biological fluid, the water molecules of the liquid becoming interspersed between the macromolecules of the alginate. Once swelled up by absorption, the dressing undergoes jellification due to ionic exchange. In the case of calcium alginate fibres they lose Ca 2 to the biological fluid which gives up Na+ ions to them.
As the equilibrium between the calcium and the sodium takes place, the alginate fibres partially lose their crystalline structure. The jellification of the dressing causes the wound to dry and prevents the dressing adhering to the ,subjacent tissues. However, jellification also causes lP:\WI'D[OCSMAP\SI'ECl 51808fDIl- 8/9/97 -2splitting of more generally a change in the integrity of the mechancal structure of the core which may make it difficult to remove from the wound without causing pain.
It is the aim of the present invention to prepose a dressing product of the aforementioned type with the capacity for absorption, retention and jellification intact but which can be easily and painlessly removed from a wound.
In one broad form, the present invention provides a dressing product for a wound with biological fluid, comprising, in a substantially cylindrical form a core of fibres of a spinnable polymer formed of an alginate of a metal selected from the group of multivalent metals, with the exception of magnesium, characterised in that the core is surrounded by a holding sleeve of a structure permeable to biological fluid and biologically compatible with the wound.
15 Thus, while retaining the mechanical cohesion of the fibrillary core, the sleeve neither alters the action of the absorption, dilation or jellification intended to extract the biological fluid, nor the action of retaining proteins and other cellular and bacterial waste which otherwise would hinder the scarring process.
The sleeve can be fibrous, having one thread or several. A single thread can connect the fibres of the core by meshing, in particular by so-called chain stitches, by winding, in particular with contiguous turns, for example. In the case of several threads they can, for instance, be meshed, plaited, twisted or woven around the core.
The sleeve can be a porous sheath or openwork sheath.
l I 3 Biologically compatible covering materials include, for example, biologically compatible polymers such as polyesters, polyamides, viscose, and moreover, biologically absorbable polymers.
A polymer for the core can be a spinnable alginate of a metal selected from the group of multivalent metals, with the exception of magnesium.
In particular the alginate of calcium can be considered as a spinnable alginate.
The invention will be understood with the aid of the following description of several embodiments of the dressing product of the invention, with reference to the attached drawing in which: Fig 1 illustrates a perspective view of a pack with two twisted holding .threads; Fig 2 illustrates a profile view of a pack with a holding thread wound in contiguous turns; Fig 3 illustrates a profile view of a pack with a holding thread meshed by chain stitches; Fig 4 illustrates a profile view of a pack with an openwork holding sheath and Fig 5 illustrates a profile view of a pack with a porous holding sheath.
R4A4. The technique for producing a core, or pack, of polymer
W^U^
W=47v' 4 fibres, in particular of alginate, and more particularly calcium alginate, for a wound with biological fluid is now well proven and therefore does not need to be explained here, no more than the textured or untextured structure of such a pack. It merely needs to be stated that a pack is of a substantially cylindrical and elongated form. In order to avoid it splitting or disintegrating, in short, losing its mechanical cohesion, it is held, in the embodiment shown in the drawings, by a sleeve which is permeable to biological fluid and is biologically compatible with the wound to be dressed.
In the embodiment of Figure 1, the pack 1 is held by two threads 2, 3 twisted around the pack in a relatively widely spaced manner.
In the embodiment of Figure 2, the pack 1 is held by a single thread 4 wound around it in almost contiaguous turns.
In the embodiment of Figure 3, the pack 1 is held by a single thread 5 meshed by regularly-spaced chain stitches 6.
In the embodiment of Figure 4, the pack 1 extends inside a sheath-sleeve 7 pierced by holes 8 for the passage (drainage) of the biological fluid.
In the embodiment of Figure 5, the pack 1 extends inside a sheath-sleeve 9 which has a porous wall for the passage of the biological fluid.
P ro3~' In all the embodiments described above, the biological fluid is still perfectly drained by the fibrillary pack. The threads or sheaths which surround it prevent it from splitting and from being in intimate contact with the wound.
The substances trapped by the fibrillary gel are therefore no longer in contact with the wound. The pack can then be easily and painlessly removed from the wound.
Claims (9)
1. A dressing product for a wound with biological fluid, comprising, in a substantially cylindrical form a core of fibres of a spinnable polymer formed of an alginate of a metal selected from the group of multivalent metals, with the exception of magnesium, characterised in that the core is surrounded by a holding sleeve of a structure permeable to biological fluid and biologically compatible with the wound.
2. A product according to claim 1, in which the sleeve is fibrous.
3. A product according to claim 2, in which the sleeve comprises a single thread.
4. A product according to claim 2, in which the sleeve comprises a plurality of threads.
A product according to claim 1, in which the sleeve is comprised of a sheath.
6. A product according to claim 5, in which the sheath is open-worked.
7. A product according to claim 5, in which the sheath is porous.
8. A product according to any one of claims 1 to 7 in which the sleeve is a biologically compatible polymer.
9. A product according to claim 8 in which the fibres are of alginate of calcium. -7- A dressing product for a wound substantially as hereinibefore described with reference to the accompanying drawings. Dated this 30th day of January 1997 SOCIETE PRECIS By Their Patent Attorneys DAVIES COLLISON CAVE se**: a C I 8 ABSTRACT Dressing product with a core of polymer fibres. The core in the form of a cylindrical pack, of the dressing is surrounded by a sleeve 3) for holding the mechanical structure of the core. The sleeve which may be comprised of threads is permeable to biological fluid of wounds and is biologically compatible with wounds. The dressing is very suitable for deep wounds from which it can easily be removed. Figure 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/FR1992/000063 WO1993014724A1 (en) | 1992-01-24 | 1992-01-24 | Dressing material having a polymeric fibre core |
| CA002128628A CA2128628A1 (en) | 1992-01-24 | 1992-01-24 | Dressing material having a polymeric fibre core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU1248992A AU1248992A (en) | 1993-09-01 |
| AU684454B2 true AU684454B2 (en) | 1997-12-18 |
Family
ID=25677389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU12489/92A Ceased AU684454B2 (en) | 1992-01-24 | 1992-01-24 | Dressing material having a polymeric fibre core |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0624082B1 (en) |
| JP (1) | JPH07502904A (en) |
| AU (1) | AU684454B2 (en) |
| CA (1) | CA2128628A1 (en) |
| DE (1) | DE69221894T2 (en) |
| ES (1) | ES2108104T3 (en) |
| WO (1) | WO1993014724A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5292525A (en) * | 1992-10-14 | 1994-03-08 | Merck & Co., Inc. | Method and composition for removing an alginate from a cutaneous substrate |
| GB9812329D0 (en) * | 1998-06-08 | 1998-08-05 | Courtaulds Plc | Yarns and wound dressings containing the same |
| EP1216319B1 (en) * | 1999-09-27 | 2004-04-07 | BHK Holding Ltd. | Absorptive fabric |
| GB2357435A (en) * | 1999-12-23 | 2001-06-27 | Johnson & Johnson Medical Ltd | Absorbent medicinal articles |
| GB0011053D0 (en) | 2000-05-09 | 2000-06-28 | Hudson John O | Medical device and use thereof |
| FR2824470B1 (en) * | 2001-05-11 | 2003-08-29 | Brothier Lab | ALGINATE FIBER BANDING PRODUCT WITH ENVELOPE |
| US8079991B2 (en) | 2006-06-02 | 2011-12-20 | Kci Licensing Inc. | Wound suction peg apparatus |
| JP7335737B2 (en) * | 2019-07-05 | 2023-08-30 | グンゼ株式会社 | Substrate for finger joint cartilage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171268A2 (en) * | 1984-08-02 | 1986-02-12 | Smith and Nephew Associated Companies p.l.c. | Wound dressing |
| EP0249937A1 (en) * | 1986-06-16 | 1987-12-23 | Mitsubishi Rayon Co., Ltd | Stick absorber for oral cavity and process for producing same |
| EP0344913A1 (en) * | 1988-05-31 | 1989-12-06 | Minnesota Mining And Manufacturing Company | Alginate wound dressing of good integrity |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB495461A (en) * | 1936-02-08 | 1938-11-11 | Pierre Levy | Improvements in absorbent devices for women's use |
| GB855537A (en) * | 1959-07-08 | 1960-12-07 | Rubert Rybar | Improvements in or relating to sanitary tampons |
| US4705514A (en) * | 1986-01-22 | 1987-11-10 | Barnhardt Manufacturing Corporation | Absorbent dental roll |
-
1992
- 1992-01-24 JP JP50326392A patent/JPH07502904A/en active Pending
- 1992-01-24 DE DE69221894T patent/DE69221894T2/en not_active Expired - Lifetime
- 1992-01-24 EP EP92904854A patent/EP0624082B1/en not_active Expired - Lifetime
- 1992-01-24 WO PCT/FR1992/000063 patent/WO1993014724A1/en not_active Ceased
- 1992-01-24 AU AU12489/92A patent/AU684454B2/en not_active Ceased
- 1992-01-24 ES ES92904854T patent/ES2108104T3/en not_active Expired - Lifetime
- 1992-01-24 CA CA002128628A patent/CA2128628A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0171268A2 (en) * | 1984-08-02 | 1986-02-12 | Smith and Nephew Associated Companies p.l.c. | Wound dressing |
| EP0249937A1 (en) * | 1986-06-16 | 1987-12-23 | Mitsubishi Rayon Co., Ltd | Stick absorber for oral cavity and process for producing same |
| EP0344913A1 (en) * | 1988-05-31 | 1989-12-06 | Minnesota Mining And Manufacturing Company | Alginate wound dressing of good integrity |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07502904A (en) | 1995-03-30 |
| DE69221894T2 (en) | 1998-04-02 |
| CA2128628A1 (en) | 1993-08-05 |
| DE69221894D1 (en) | 1997-10-02 |
| AU1248992A (en) | 1993-09-01 |
| WO1993014724A1 (en) | 1993-08-05 |
| EP0624082A1 (en) | 1994-11-17 |
| EP0624082B1 (en) | 1997-08-27 |
| ES2108104T3 (en) | 1997-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |