DE20021001U1 - Implant for a person's upper eyelid - Google Patents
Implant for a person's upper eyelidInfo
- Publication number
- DE20021001U1 DE20021001U1 DE20021001U DE20021001U DE20021001U1 DE 20021001 U1 DE20021001 U1 DE 20021001U1 DE 20021001 U DE20021001 U DE 20021001U DE 20021001 U DE20021001 U DE 20021001U DE 20021001 U1 DE20021001 U1 DE 20021001U1
- Authority
- DE
- Germany
- Prior art keywords
- implant
- titanium
- layer
- upper eyelid
- eyelid
- 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.)
- Expired - Lifetime
Links
- 239000007943 implant Substances 0.000 title claims description 27
- 210000000744 eyelid Anatomy 0.000 title claims description 16
- 239000000463 material Substances 0.000 claims description 17
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 16
- 239000010936 titanium Substances 0.000 claims description 16
- 229910052719 titanium Inorganic materials 0.000 claims description 16
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical compound [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 3
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- 239000000560 biocompatible material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 208000004929 Facial Paralysis Diseases 0.000 description 1
- 206010050031 Muscle strain Diseases 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 210000000256 facial nerve Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
-
- 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
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
-
- 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
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00718—Restoration of lid function
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/04—Metals or alloys
- A61L27/047—Other specific metals or alloys not covered by A61L27/042 - A61L27/045 or A61L27/06
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
- A61L27/306—Other specific inorganic materials not covered by A61L27/303 - A61L27/32
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/34—Macromolecular materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/36—Materials for grafts or prostheses or for coating grafts or prostheses containing ingredients of undetermined constitution or reaction products thereof, e.g. transplant tissue, natural bone, extracellular matrix
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/12—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08L27/18—Homopolymers or copolymers or tetrafluoroethene
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/16—Materials or treatment for tissue regeneration for reconstruction of eye parts, e.g. intraocular lens, cornea
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Medicinal Chemistry (AREA)
- Epidemiology (AREA)
- Dermatology (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Inorganic Chemistry (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Botany (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Materials For Medical Uses (AREA)
- Physical Vapour Deposition (AREA)
Description
G 10509 DE - 1 -G 10509 EN - 1 -
Heinz Kurz GmbH MedizintechnikHeinz Kurz GmbH Medical Technology
Tübinger Straße 3Tübingen Street 3
72144 Dusslingen72144 Dusslingen
Die Erfindung betrifft ein Implantat für das Oberlid eines Menschen.The invention relates to an implant for the upper eyelid of a human.
Bei Menschen, die aufgrund von Lähmungen, Verletzungen oder einer eingeschränkten Funktion des Gesichtsnervs (peripherer Facialsparese) ihre Augenlieder nur noch öffnen aber nicht mehr schließen können, können Implantate aus einem Stoff mit hohem spezifischen Gewicht, vorzugsweise einem Metall, in das Lid implantiert werden. Dieses durch das Implantat bewirkte zusätzliche Gewicht im Augenlid führt beim Nachlassen der Muskelanstrengung durch die Schwerkraft zu einem Herabgleiten des Lids und damit zu einem kompletten Lidschluss. Ein solcher Lidschluss ist notwendig, um ein Austrocknen der Bindehaut des Auges zu verhindern.For people who can only open their eyelids but can no longer close them due to paralysis, injuries or a limited function of the facial nerve (peripheral facial paralysis), implants made of a material with a high specific weight, preferably a metal, can be implanted into the eyelid. This additional weight in the eyelid caused by the implant causes the eyelid to slide down due to gravity when the muscle strain is reduced, thus causing the eyelid to close completely. This type of eyelid closure is necessary to prevent the conjunctiva of the eye from drying out.
Es ist schon aus kosmetischen Gründen wünschenswert, das Implantat sehr klein und dünn zu halten. Als Materialien für das Implantat wurden daher bisher Stoffe, insbesondere Metalle, mit einem hohen spezifischen Gewicht verwendet. Bei den bisher verwendeten Materialien handelt es sich überwiegend um Gold,For cosmetic reasons alone, it is desirable to keep the implant very small and thin. The materials used for the implant have therefore been materials with a high specific weight, particularly metals. The materials used so far are mainly gold,
G 10509 DEG 10509 EN
Tantal, Platin oder Platin-Iridium. Mit solchen Materialien ist es möglich, trotz kleiner Abmessungen des Implantats das notwendige Gewicht des Implantats, das für ein vollständiges Schließen des Lids notwendig ist, zu erreichen.Tantalum, platinum or platinum-iridium. With such materials it is possible to achieve the necessary weight of the implant, which is necessary for complete closure of the eyelid, despite the small dimensions of the implant.
Gegenüber diesen Werkstoffen haben sich in der medizinischen Implantationstechnik Titan, Silikon und PTFE als biokompatiblere Werkstoffe erwiesen. Sie zeigen gegenüber den oben angegebenen Materialien eine bessere Gewebeverträglichkeit. Nachteilig ist aber, dass sie ein relativ geringes spezifisches Gewicht aufweisen. So beträgt das spezifische Gewicht von Titan 4,5 kg/dm3. Gold weist dagegen ein spezifisches Gewicht von 19,3 kg/dm3, Platin von 21,5 kg/dm3 und Iridium von 22,4 kg/dm3 auf. Um das benötigte Gesamtgewicht des Implantats, das einen sicheren Lidschluss gewährt, zu erhalten, müssten die Dimensionen, insbesondere die Dicke des Implantats auf nicht akzeptable Werte erhöht werden.Compared to these materials, titanium, silicone and PTFE have proven to be more biocompatible materials in medical implantation technology. They show better tissue compatibility than the materials mentioned above. The disadvantage, however, is that they have a relatively low specific weight. The specific weight of titanium is 4.5 kg/dm 3 . Gold, on the other hand, has a specific weight of 19.3 kg/dm 3 , platinum 21.5 kg/dm 3 and iridium 22.4 kg/dm 3 . In order to achieve the required total weight of the implant, which ensures secure eyelid closure, the dimensions, in particular the thickness of the implant, would have to be increased to unacceptable values.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Implantat für das Oberlid eines Menschen anzugeben, bei dem biokompatible Stoffe verwendet werden, und das trotzdem in seinen Abmessungen nicht wesentlich größer als bisher bekannte Implantate aus Werkstoffen mit hohem spezifischen Gewicht ist.The invention is therefore based on the object of specifying an implant for the upper eyelid of a human being, in which biocompatible materials are used, and which nevertheless is not significantly larger in its dimensions than previously known implants made of materials with a high specific weight.
Die gestellte Aufgabe wird mit dem Implantat für das Oberlid eines Menschen, wie es im Hauptanspruch definiert ist, gelöst. Die Unteransprüche geben bevorzugte Weiterbildungen an.The stated object is achieved with the implant for the upper eyelid of a person as defined in the main claim. The subclaims specify preferred further developments.
Beim erfindungsgemäßen Implantat für das Oberlid eines Menschen wird als Grundmaterial des Implantats ein Material mit hohem spezifischen Gewicht, wie Gold, Platin, Platin-Iridium, Silber oder Tantal verwendet. Dieses Material wird dann mit einer dünnen Schicht aus Titan, Silikon oder PTFE versehen. Vorzugsweise weist diese Schicht nur eine Dicke von 0,1 bis 100 &mgr;&tgr;&eegr; auf. Bei Verwendung einer Titanschicht kann diese ausIn the implant according to the invention for the upper eyelid of a person, a material with a high specific weight, such as gold, platinum, platinum-iridium, silver or tantalum, is used as the base material of the implant. This material is then provided with a thin layer of titanium, silicone or PTFE. This layer preferably has a thickness of only 0.1 to 100 μιη . If a titanium layer is used, this can be made of
G 10509 DE * - 3 -G 10509 EN * - 3 -
Rein-Titan oder aus einer Titanlegierung hergestellt sein.Pure titanium or made from a titanium alloy.
Grundsätzlich kann das Beschichtungsmaterial auf das Grundmaterial durch verschiedene Verfahren aufgebracht werden. Ein Verfahren zum Aufbringen von Titan ist die galvanische Beschichtung. Da jedoch Titan in Verbindung mit Sauerstoff sofort eine Titan-Oxid-Schicht bildet und dadurch keine elektrische Leitung stattfinden kann, ist es nur mit sehr großem Aufwand möglich, eine galvanische Schicht aus Titan aufzutragen. In principle, the coating material can be applied to the base material using various methods. One method for applying titanium is electroplating. However, since titanium immediately forms a titanium oxide layer when combined with oxygen and therefore no electrical conduction can take place, it is only possible to apply an electroplated layer of titanium with great effort.
Ein besseres Verfahren für das Aufbringen der Titanschicht auf das Grundmaterial ist das Sputtern. Dieses Verfahren wird vorzugsweise in einer Inertatmosphäre und in einem angenäherten Vakuum, beispielsweise bei einem Druck von 10"2 mbar, durchgeführt. A better method for applying the titanium layer to the base material is sputtering. This process is preferably carried out in an inert atmosphere and in an approximate vacuum, for example at a pressure of 10" 2 mbar.
PTFE kann in einem Sprühverfahren aufgetragen werden. Zur Erzeugung einer Silikonschicht ist ein Tauchverfahren besonders zweckmäßig.PTFE can be applied using a spraying process. A dipping process is particularly useful for creating a silicone layer.
Insgesamt wird durch das erfindungsgemäße Implantat für das Oberlid eines Menschen ein Implantat bereitgestellt, das durch seine Außenfläche aus Titan überragende biokompatible Eigenschaften aufweist, und das dennoch annähernd die Größe eines Implantats aus den bisher dafür verwendeten bekannten Materialien mit hohem spezifischen Gewicht aufweist.Overall, the implant according to the invention for the upper eyelid of a human provides an implant which has outstanding biocompatible properties due to its outer surface made of titanium, and which nevertheless has approximately the size of an implant made of the known materials with high specific weight used to date.
Außerdem ermöglicht die Titanschicht auch die Verwendung nicht biokompatibler Materialien wie Blei oder dergleichen für den Implantatgrundkörper, die ein hohes spezifisches Gewicht aufweisen und preiswerter sind als die seither verwendeten biokompatiblen Edelmetalle Gold und Platin.In addition, the titanium layer also enables the use of non-biocompatible materials such as lead or similar for the implant base body, which have a high specific weight and are cheaper than the biocompatible precious metals gold and platinum that have been used up to now.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20021001U DE20021001U1 (en) | 2000-12-12 | 2000-12-12 | Implant for a person's upper eyelid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20021001U DE20021001U1 (en) | 2000-12-12 | 2000-12-12 | Implant for a person's upper eyelid |
Publications (1)
Publication Number | Publication Date |
---|---|
DE20021001U1 true DE20021001U1 (en) | 2001-03-01 |
Family
ID=7949943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20021001U Expired - Lifetime DE20021001U1 (en) | 2000-12-12 | 2000-12-12 | Implant for a person's upper eyelid |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE20021001U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007024049A1 (en) * | 2007-05-23 | 2008-11-27 | Hörmansdörfer, Gerd | Eyelid weighting implant for e.g. operative rehabilitation of lagophthalmos, is formed of wire with meander-shaped loops, which are provided at upper and lower edges, where surface sweeps over wire is curved in two axes |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7537747U (en) | 1975-11-06 | 1977-08-11 | Bbc Ag Brown, Boveri & Cie, Baden (Schweiz) | Permanent magnet for implantation |
DE19741342C1 (en) | 1997-09-19 | 1999-05-06 | Univ Halle Wittenberg | Upper lid implant |
-
2000
- 2000-12-12 DE DE20021001U patent/DE20021001U1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7537747U (en) | 1975-11-06 | 1977-08-11 | Bbc Ag Brown, Boveri & Cie, Baden (Schweiz) | Permanent magnet for implantation |
DE19741342C1 (en) | 1997-09-19 | 1999-05-06 | Univ Halle Wittenberg | Upper lid implant |
Non-Patent Citations (3)
Title |
---|
ILLIG,K.M.: Goldgewichte gegen Lagophthalmus paralyticus Modifikation der Originalmethode. In: Klin. Mbl. Augenheilk. 177, 1980, S.609,610 |
JACOB,J.T., et.al.: Porous alloplastic material encasement of gold weights for the treatment of paralytic lagophthalmos. In: Ophthalmic Plastic And Reconstructive Surgery, 1999 Nov., 15 (6), S.401-406 |
MOHR,A.: Prätarsale Platin-Iridium-Implantate zur Therapie des Lagophthalmus bei Fazialisparese. Vorläufige Ergebnisse. In: Ophthalmologe, 1997 Aug., 94 (8), S.600-602 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007024049A1 (en) * | 2007-05-23 | 2008-11-27 | Hörmansdörfer, Gerd | Eyelid weighting implant for e.g. operative rehabilitation of lagophthalmos, is formed of wire with meander-shaped loops, which are provided at upper and lower edges, where surface sweeps over wire is curved in two axes |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R207 | Utility model specification |
Effective date: 20010405 |
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R163 | Identified publications notified |
Effective date: 20010808 |
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R156 | Lapse of ip right after 3 years |
Effective date: 20040701 |