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
  • 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
  • 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
• • 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
  • A61F2/15—Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
• • 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
  • A61F2/16—Intraocular lenses
• • 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
  • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
  • A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
• • 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
  • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
  • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
  • A61F2250/006—Additional features; Implant or prostheses properties not otherwise provided for modular
• • 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
  • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
  • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
  • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
  • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Definitions

• the invention relates to a diaphragm for implantation in the front portion of a human eye for the purpose of providing an artificial pupil opening.
• WO 98/56 314 A1 discloses a diaphragm for implantation in the lens capsule bag of an eye.
• the iris is used in the presence of aniridia or to supply iris deficits.
• Their endocapsular positioning requires the presence of an intact lens capsular bag.
• the fixing ring has a centrally divided annular body, which can be folded at the division.
• the ring body is held together by connecting straps.
• the object of the invention is to provide a diaphragm for implantation in the anterior portion of a human eye for the purpose of providing an artificial pupil opening, which can be applied in small-incision surgery and is characterized by permanent dimensional stability.
• the aperture which solves this problem consists of essentially rigid surface elements which are separated at least one folding line.
• the Separation is bridged with an elastic material, which forms an adhesive bond with the surface elements, allows an elastic folding of the diaphragm and the latter is able to be refolded by inherent elasticity in the flat original position again.
• the diaphragm has such a shape memory and an elastic dimensional stability.
• a preferred embodiment of the panel has at least one straight fold line.
• Preferred embodiments of the bezel have either a single or two or more parallel fold lines.
• the surface elements of the diaphragm are made of colored PMMA (polymethyl methacrylate).
• the elastic material bridging the aperture is silicone (polyorganosiloxane) or hydrophilic or hydrophobic acrylate.
• the surface elements of the diaphragm are provided on both sides of the separation with near-edge holes. These allow the elastic material to thoroughly penetrate the surface elements and to enter into a particularly intimate bond with the surface elements.
• the holes are preferably round holes.
• the aperture has a central, circular aperture.
• the aperture can be stiffened with a fixing ring, which can be inserted into the aperture.
• the fixing ring can also be folded.
• the fixation ring has a central, circular aperture.
• a lens is provided, which can be clipped depending on the size in the aperture of the aperture or the aperture of the fixing ring.
• Fig. 1 and Fig. 2 are plan views of a respective aperture
• Fig. 3 is a plan view of a fixing ring
• FIG. 4 shows a side view of the fixing ring looking in the direction IV of FIG. 3;
• Fig. 5 is a side view of the fixing ring in an alternative
• Fig. 6 is a plan view of a lens
• Fig. 7 is a side view of the lens with a view in the direction of XII of
• the aperture shown in Fig. 1 has the basic shape of a flat circular ring with a central, circular aperture and a concentric with the edge 10 extending outer circumferential circle 12th
• the panel is divided by a diametrical folding line 14.
• the half parts 16 hang with an elastic adhesive fold on the fold line 14 together.
• the aperture is provided with a mirror-symmetrical arrangement on both sides of the fold line 14 near its outer edge arranged round holes 18.
• the aperture has three more round holes close to the same size 20, which are offset by 120 ° to each other on the same circle circumference as the round holes 18 are located on both sides of the fold line 14.
• In the middle between the aperture is provided with three much larger, near the edge, substantially oval oblong holes 22.
• Their long edges 24 are the outer Periphery of the aperture substantially rounded as follows. From the outer longitudinal edge 24, a central radial cut 38 extends to the outer peripheral circle 12. The cuts 38 facilitate the enclavation of iris tissue.
• Depending on one of the round holes 20 and slots 22 is offset from the fold line 14 by 90 °.
• the diaphragm shown in Fig. 2 has an annular, flat central body with a central, circular aperture and a concentric with the edge 10 extending outer circumferential circle 12.
• the central body of the panel is essentially divided transversely to the Haptikbü- rules 26 with two straight fold lines 14.
• the fold lines 14 extend parallel to each other at a small distance on both sides of the aperture.
• the segments 28 of the central body are connected to the fold lines 14 with elastic adhesive seams.
• the panel is provided on both sides of the fold lines 14 with their near outer edge arranged round holes 18. These are four pairs of round holes 18, which lie on the same circumference circle and are equally spaced from the fold lines 14 in pairs. Thanks to the round holes 18, the elastic material of the adhesive pad can penetrate the segments 28 of the panel.
• the diaphragm of FIG. 2 is of twofold rotational symmetry. She goes into a 180 ° turn around its center in itself.
• the fixing ring according to FIGS. 3 to 5 is the subject of the subsequently published German patent application No. 101 56 463.5.
• the fixing ring has a central aperture 30.
• the lens shown in FIGS. 6 and 7 can either be clipped into the aperture of the diaphragms according to FIGS. 1 and 2 or into the central aperture 30 of the fixing ring.
• the lens is ro- symmetric with respect to a central axis transverse to its principal plane. It has an outer convexly curved lens body 32 with a circular cylindrical diameter recess 34 behind it. The latter is adjoined by an anchoring part 36, which is also convexly curved on the outside and of larger diameter. The diameter of the lens body 32 is greater than that of the anchoring part 36. After clipping the lens, the diameter recess 34 determines the optically exposed lens part.
• the invention relates to a foldable diaphragm iris prosthetic system.
• the system is designed for anatomically pathological situations in which it is necessary to produce a diaphragm ring in the anterior section of the eye in compensation for iris tissue, in those cases in which a prosthetic positioning in the capsular bag is no longer possible.
• the diaphragmatic iris prosthetic system can be sulcuspositioned.
• the capsular bag is still present, an endocapsular prosthetic restoration is no longer possible for various reasons.
• the capsule serves only as a support for the positioning of the prosthetics in the ciliary sulcus.
• the aperture according to FIG. 2 is designed.
• the diaphragm according to FIG. 1 can also be positioned in this area.
• a prerequisite for the fixation of this iris is a remnant of iris tissue, which may allow, for example, the retroiridal fixation of the prosthetics.
• the prosthesis is fixed by sclerotherapy. Due to the two last fixation possibilities mentioned in these cases the presence of a capsular support is not necessary.
• the diaphragm according to FIG. 1 can also be stored in a pre-preventive manner. It is necessary that a residual inventory of iris tissue is present for the fixation of the diaphragmal disc, if the disc is to be fixed preiridally. A thread fixation of the disc in the preiridal position is prohibited.
• the invention enables an intraocular implantation of diaphragmal diaphragm discs in the anterior eye segment with the technique of Small-section surgery especially if there is no possibility to position the prosthetics endocapsularly.
• the diaphragm discs can be folded on folding lines that divide the prosthetics into two or three parts.
• the cohesion of the prosthetics is ensured by the fact that the fold lines are bridged by a silicone layer or Klebefalze.
• the adhesive consists of the silicone.
• the outer diameter in the diaphragm of FIG. 1 is approximately 10.5 mm and in the diaphragm according to FIG. 2, the outer diameter of the central body is approximately 9 mm.
• the panel of FIG. 1 can be reduced to a diameter of about 5.25 mm, wherein the folded end faces each have only about 3.25 mm width. This width, while taking into account the thickness of the prosthetics (about 0.2 mm), is decisive for the incision size.
• the width of the central body is reduced from approximately 9 mm to approximately 4.4 mm in the folded state. Taking additive consideration of the prosthesis thickness (about 0.2 mm), this measure also determines the required incision size.
• the iris according to FIG. 1 for iris and sclera fixation is a circular disc with an outer diameter of approximately 10.5 mm.
• the bezel has three oblong holes 22 for the iris bladder.
• a jaw device makes it possible to feed iris tissue in these slots 22 and fix.
• the aperture of the diaphragm disc has a diameter of about 4 mm.
• the diameter of the aperture 30 of the fixing ring is about 3 mm. It is possible to clip into this aperture 30 the lens according to FIGS. 6 and 7.
• the lens can be designed according to the individual optical specifications.
• the prosthesis according to FIG. 2 for sulcus positioning has a diamagnetic disc of approximately 9.0 mm in diameter. To reduce the size during implantation, the disc has two fold lines 14. The fold lines are each provided with two round holes 18 at their ends.
• the middle part of the diaphragmatic prosthetics carries on the outside a haptic 26 whose outer diameter is about 13.75 mm. The haptic 26 is used for positioning in the ciliary sulcus.
• the central aperture of the diaphragm of FIG. 2 has about 4 mm in diameter. The aperture can equally serve to receive the above-mentioned fixing ring or a lens can be clipped therein.
• the lens is made of PMMA (polymethylmethacrylate) with a pigmented pigment in the colors brown, green, blue or dark polycarbonate. These materials are characterized by strong limitation of the light transmission by a good, secure biocompatibility (biocompatibility).
• the front lens body 32 has a diameter of about 5 mm
• the diameter recess 34 has a diameter of about 3 mm
• the rear anchoring part 36 has a diameter of about 3.4 mm.

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• Health & Medical Sciences (AREA)
• Ophthalmology & Optometry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Animal Behavior & Ethology (AREA)
• Engineering & Computer Science (AREA)
• Biomedical Technology (AREA)
• Heart & Thoracic Surgery (AREA)
• Vascular Medicine (AREA)
• Oral & Maxillofacial Surgery (AREA)
• Transplantation (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Veterinary Medicine (AREA)
• Cardiology (AREA)
• Prostheses (AREA)
• Absorbent Articles And Supports Therefor (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=33394313

Family Applications (2)

Family Applications After (1)

Country Status (5)

Families Citing this family (9)

Family Cites Families (14)

• 2003
  • 2003-05-07 DE DE10320584A patent/DE10320584A1/de not_active Withdrawn
• 2004
  • 2004-04-30 EP EP04730467A patent/EP1622546A2/de not_active Withdrawn
  • 2004-04-30 US US10/555,919 patent/US20070162114A1/en not_active Abandoned
  • 2004-04-30 WO PCT/DE2004/000906 patent/WO2004098463A2/de active Application Filing
  • 2004-04-30 JP JP2006504311A patent/JP2006525044A/ja active Pending
  • 2004-05-06 JP JP2006504316A patent/JP2006525045A/ja active Pending
  • 2004-05-06 WO PCT/DE2004/000961 patent/WO2004098464A2/de active Application Filing
  • 2004-05-06 US US10/555,918 patent/US20070162117A1/en not_active Abandoned
  • 2004-05-06 EP EP04738489A patent/EP1622547A2/de not_active Withdrawn

Non-Patent Citations (1)

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