WO2004012631A1 - Dispositif pour l'implantation d'un cristallin artificiel - Google Patents

Dispositif pour l'implantation d'un cristallin artificiel Download PDF

Info

Publication number
WO2004012631A1
WO2004012631A1 PCT/EP2003/008257 EP0308257W WO2004012631A1 WO 2004012631 A1 WO2004012631 A1 WO 2004012631A1 EP 0308257 W EP0308257 W EP 0308257W WO 2004012631 A1 WO2004012631 A1 WO 2004012631A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide channel
tip
push
intraocular lens
folding
Prior art date
Application number
PCT/EP2003/008257
Other languages
German (de)
English (en)
Inventor
Arthur Messner
Thomas Herberger
Original Assignee
Humanoptics Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Humanoptics Ag filed Critical Humanoptics Ag
Priority to AU2003255298A priority Critical patent/AU2003255298A1/en
Publication of WO2004012631A1 publication Critical patent/WO2004012631A1/fr

Links

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
    • A61F2/16—Intraocular lenses
    • A61F2/1662—Instruments for inserting intraocular lenses into the eye
    • A61F2/1664—Instruments for inserting intraocular lenses into the eye for manual insertion during surgery, e.g. forceps-like instruments

Definitions

  • the invention relates to a device for folding and implanting an intraocular lens with a folding area, which has two pivotably connected half-shells, which can be pivoted from an open starting position into a closed end position, in which they form part of a guide channel having a proximal end and a distal end for the intraocular lens.
  • the device is part of an injection system for implanting a foldable intraocular lens (hereinafter referred to as IOL).
  • IOL foldable intraocular lens
  • the injection system is intended to implant a temporarily folded IOL through a small incision opening in the capsular bag of a patient suffering, for example, from cataracts.
  • An injection system in which a folding device and an injector form a unit is known, for example, from DE 36 10 925 A1.
  • This injection system has an injection channel, the distal end of which is inserted into the patient's eye during the operation.
  • the folding process is combined with this movement of the IOL towards the patient's eye.
  • the injection channel is conical, so that it tapers towards the distal end.
  • a thrust ram causing the IOL to advance as part of the injector is therefore not exactly adaptable to the internal geometry of the injection channel. Due to this fact, the IOL is destroyed (e.g. by being pinched between the injection channel wall and stamp tip of the push stamp) possible. In addition, there is a risk that damage to the IOL will not be recognized during the operation.
  • the object of the invention is to provide an implantation aid for an intraocular lens that is particularly easy to handle.
  • the device for folding and implanting an intraocular lens which is also referred to as a cartridge, is part of an injection system for inserting an intraocular lens into the eye of a person and has for folding the intraocular lens has a folding area which comprises two pivotably connected half-shells which can be pivoted from an open starting position into a closed end position, in which they have a part of a proximal end and a distal, ie Form the front end of the guide channel for the intraocular lens.
  • a push stamp tip formed from a flexible material is mounted in the guide channel, between the proximal end and the part that can be formed from the half-shells.
  • the push stamp tip is displaceable by a push stamp which can be inserted into the guide channel and thus can be attached to the push stamp tip.
  • the intraocular lens in the guide channel can be displaced towards the distal end thereof by the displacement of the push stamp tip.
  • the push stamp tip Due to the flexible design of the push punch tip, it can be easily adapted to a variable inner diameter of the guide channel. This avoids the risk of damage to the intraocular lens.
  • the push stamp tip is already mounted in the guide channel before the push stamp is attached, that is to say it is preassembled. When the thrust ram is inserted into the guide channel, the thrust ram inevitably hits the push ram tip which is displaceably mounted in the guide channel. The push stamp does not come into contact with the intraocular lens. In principle, incorrect operation is excluded.
  • the preassembly of the push stamp tip in the guide channel enables time-saving operation of the device for folding and implanting the intraocular lens.
  • the push stamp tip is preferably made of silicone.
  • this material is particularly suitable for the push punch tip.
  • the push punch tip thus has sufficient elasticity to adapt to different diameters in the guide channel. Due to the soft design of the pusher tip, the intraocular lens cannot be damaged when it is pushed towards the distal end of the guide channel. At the same time, however, the pusher stamp tip made of silicone is mechanically strong enough not to be damaged or destroyed by the pusher stamp, which is preferably made of metal. In particular, it is excluded that the pushing stamp penetrates the pushing punch tip and hits the intraocular lens directly.
  • the push punch tip points towards the proximal, i.e. a centering device at the rear end of the guide channel for centering the thrust ram.
  • the centering device can be designed, for example, as a conical or as a stepped depression.
  • the formation of a centering device in the push punch tip provides a defined type of force action of the push punch on the push punch tip and further the push punch tip on the intraocular lens when the push punch tip is advanced.
  • Contact of the thrust ram with the inner wall of the guide channel can be avoided by the centering device in the thrust ram tip.
  • the implantation process of the intraocular lens is reproducibly defined with regard to the geometric conditions in the injection system and the forces that occur.
  • the push stamp tip should only be able to move in the guide channel through the push stamp. An unintentional shifting of the push stamp tip, for example due to transport-related vibrations, should be avoided.
  • the push punch tip is preferably mounted in the guide channel with an interference fit. This means that the outer diameter of the pushing die tip, which is not mechanically loaded, is at least slightly larger than the inner diameter of the guide channel at the location provided for mounting the pushing die tip. The push stamp tip is now clamped in the guide channel.
  • a locking bracket can be provided in order to fix the push punch tip in the guide channel. hen.
  • the shear punch tip can snap into a groove in the inner wall of the guide channel.
  • thrust punch tip for example, between two bead-shaped webs running around in the guide channel or between individual locking lugs in the guide channel.
  • the latching connection between the push punch tip and the guide channel can only be released by advancing the push punch.
  • the advantage of the invention is, in particular, that a flexibly designed push stamp tip is preassembled in a guide channel of a cartridge for folding and implanting an intraocular lens. With the simplest handling of the cartridge, any damage to the intraocular lens by the pushing stamp is therefore excluded.
  • FIG. 1 shows a perspective view of a device for folding and implanting an intraocular lens
  • FIG. 2 shows the device according to FIG. 1 in a frontal view
  • FIG. 3 shows a section III-III through the device according to FIG. 2,
  • FIGS. 1 to 3 shows an injector for a device according to FIGS. 1 to 3.
  • a guide channel 2 extends over the entire length of the cartridge 1 and is composed of a proximal or rear part 2a, a middle part 2b and a front or distal part 2c.
  • the middle part 2b of the guide channel 2 is formed from two half-shells 3a, 3b, which are connected by a film hinge 4.
  • the intraocular lens is inserted into the folding area formed between the half-shells 3a, 3b and by collapsing the half-shells 3a, 3b folded.
  • the folded intraocular lens can be moved by means of a thrust ram 5 as part of an injector 6 (FIG. 4) towards the distal end 7 of the cartridge 1, which is designed in the form of a beveled tip.
  • the distal part 2c of the guide channel 2 tapers towards the distal end 7 in order to further compress the intraocular lens during advancement.
  • the distal end 7 of the cartridge 1 is inserted into the patient's eye during the implantation of the intraocular lens.
  • the proximal or rear part 2a adjoining the middle part 2b of the guide channel 2 in the direction of the proximal end 8 of the cartridge 1 is designed in the form of a hollow cylinder of constant diameter.
  • a thrust ram tip 9 made of silicone is embodied essentially as a rotationally symmetrical plate.
  • the push punch tip 9 is designed in a stepped manner in cross section (FIG. 3) in such a way that a recess is formed on its proximal side as a centering device 10 for centering a punch head 11 of the push punch 5.
  • the punch head 11 engaging in the centering device 10 displaces the pushing punch tip 9 in the direction of the distal end 7, so that a flat pushing surface 12 on the distal side of the pushing punch tip 9 conveys the intraocular lens through the guide channel 2.
  • the pushing punch tip 9 is clamped in the guide channel in such a way that a displacement of the pushing punch tip 9 is only possible by actuating the pushing punch 5.
  • the clamping force or - in the case of the formation of a latching connection - latching force between the pushing punch tip 9 and the proximal part 2a of the guide channel 2 is significantly greater than the weight of the pushing punch tip 9.
  • the pushing punch tip 9 is pre-assembled in the cartridge 1 and packaged sterilized together with the latter.
  • the cartridge 1 can also be used with other, not shown embodiments of injectors.
  • the cartridge 1 can be used as a disposable part in a frontal area 13 of the injector 6, which is designed as a resterilizable device.
  • the half shells 3a, 3b held in a slot 14 in the frontal area 13. The handling of the injection system is particularly facilitated in that the flexible pushing stamp tip 9 is already inserted in the proximal part 2a of the guide channel 2 before the cartridge 1 is inserted into the injector 13.

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (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)
  • Prostheses (AREA)

Abstract

L'invention concerne un dispositif pour plier et implanter un cristallin artificiel, ledit dispositif présentant une zone de pliage qui comporte deux demi-coques (3a, 3b), reliées l'une à l'autre de manière à pouvoir pivoter pour passer d'une position initiale ouverte à une position finale fermée dans laquelle elles forment une partie d'un canal de guidage (2) qui est destiné au cristallin artificiel et qui présente une extrémité proximale (8) et une extrémité distale (7). L'objectif de l'invention est de permettre une manipulation particulièrement simple dudit dispositif. A cet effet, ce dernier présente une extrémité de piston de poussée (9) souple, placée dans le canal de guidage (2) entre l'extrémité proximale (8) et la partie de ce dernier pouvant être formée à partir des demi-coques (3a, 3b). Ladite extrémité de piston de poussée (9) permet de faire coulisser le cristallin artificiel vers l'extrémité distale (7) du canal de guidage (2) au moyen d'un piston de poussée pouvant être appliqué sur ladite extrémité (9) par introduction dans le canal de guidage.
PCT/EP2003/008257 2002-07-26 2003-07-25 Dispositif pour l'implantation d'un cristallin artificiel WO2004012631A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003255298A AU2003255298A1 (en) 2002-07-26 2003-07-25 Device for implanting an intra-ocular lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10234290.3 2002-07-26
DE2002134290 DE10234290A1 (de) 2002-07-26 2002-07-26 Vorrichtung zum Implantieren einer Intraokularlinse

Publications (1)

Publication Number Publication Date
WO2004012631A1 true WO2004012631A1 (fr) 2004-02-12

Family

ID=30010463

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/008257 WO2004012631A1 (fr) 2002-07-26 2003-07-25 Dispositif pour l'implantation d'un cristallin artificiel

Country Status (3)

Country Link
AU (1) AU2003255298A1 (fr)
DE (1) DE10234290A1 (fr)
WO (1) WO2004012631A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8932351B2 (en) 2007-05-29 2015-01-13 Steven J. Dell Accommodative intraocular lens having a haptic plate

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016692A3 (fr) * 2005-07-25 2007-04-03 Physiol Cartouche pour dispositif d'injection de lentille intraoculaire souple et dispositif pourvu d'une telle cartouche.
US20070150054A1 (en) 2005-12-22 2007-06-28 Joel Pynson Apparatus and methods for loading of an IOL injector
US8475526B2 (en) 2005-12-22 2013-07-02 Bausch & Lomb Incorporated Apparatus and methods for loading of an IOL injector
WO2007128886A1 (fr) * 2006-05-05 2007-11-15 Xcelens S.A. Cartouche amelioree pour implant intraoculaire

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026841A2 (fr) * 1996-01-26 1997-07-31 Vision Pharmaceuticals L.P. Appareil et procedes pour l'implantation de lentilles intraoculaires
WO2003045285A1 (fr) * 2001-11-30 2003-06-05 Medicel Ag Appareil d'implantation d'une lentille intraoculaire

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3610925C2 (de) * 1986-03-24 1994-11-03 Michael Ulrich Prof D Dardenne Vorrichtung zum Falten einer insbesondere mit zwei seitlichen Kunststoffhaptikplatten versehenen, implantierbaren Intraokularlinse und zum Einbringen der gefalteten Intraokularlinse in das Auge
US5772666A (en) * 1992-09-30 1998-06-30 Staar Surgical Company, Inc. Deformable intraocular lens injecting apparatus with deformable tip plunger
JP3459664B2 (ja) * 1993-07-15 2003-10-20 キヤノンスター株式会社 変形可能な眼内レンズの挿入器具
US5735858A (en) * 1996-01-26 1998-04-07 Allergan IOL insertion apparatus and method for using same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997026841A2 (fr) * 1996-01-26 1997-07-31 Vision Pharmaceuticals L.P. Appareil et procedes pour l'implantation de lentilles intraoculaires
WO2003045285A1 (fr) * 2001-11-30 2003-06-05 Medicel Ag Appareil d'implantation d'une lentille intraoculaire

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8932351B2 (en) 2007-05-29 2015-01-13 Steven J. Dell Accommodative intraocular lens having a haptic plate
US9084673B2 (en) 2007-05-29 2015-07-21 Steven J. Dell Accommodative intraocular lens having a haptic plate
US9468523B2 (en) 2007-05-29 2016-10-18 Bausch & Lomb Incorporated Accommodative intraocular lens having a haptic plate

Also Published As

Publication number Publication date
DE10234290A1 (de) 2004-02-05
AU2003255298A1 (en) 2004-02-23

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