WO2003045286A2 - Dispositif de pliage d'implants intraoculaires souples - Google Patents
Dispositif de pliage d'implants intraoculaires souples Download PDFInfo
- Publication number
- WO2003045286A2 WO2003045286A2 PCT/FR2002/004081 FR0204081W WO03045286A2 WO 2003045286 A2 WO2003045286 A2 WO 2003045286A2 FR 0204081 W FR0204081 W FR 0204081W WO 03045286 A2 WO03045286 A2 WO 03045286A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- folding
- support
- implant
- optical part
- projecting
- Prior art date
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
- A61F2/1678—Instruments for inserting intraocular lenses into the eye with a separate cartridge or other lens setting part for storage of a lens, e.g. preloadable for shipping
Definitions
- the present invention relates to a device for folding flexible intraocular implants comprising at least one optical part made of a flexible material. More specifically, the invention relates to a clamp-type device which allows automatic folding of the optical part of an intraocular implant, this optical part being made of a flexible biocompatible material such as silicones, hydrophobic acrylics and hydrophilic acrylics (pHEMA).
- a flexible biocompatible material such as silicones, hydrophobic acrylics and hydrophilic acrylics (pHEMA).
- the incision which must be made in the cornea to perform this positioning can have reduced dimensions typically of the order of 3 to 4 mm. This situation is particularly interesting since it is known that, when the incision to be made in the cornea is of reduced size, the scarring of the incision occurs under optimal conditions, which makes it possible to very significantly limit the period of convalescence .
- the folding device is in the form of a sort of clamp which has two jaws between which the optical part of the implant to be folded is placed. By bringing the two jaws together, the optical part is folded and the surgeon only has to grip the folded optical part with suitable pliers.
- the second type of folding device called an implant injector allows, in a first step, to perform automatic folding of the optical part of the implant and, in a second step, the introduction of the folded implant into the eye thanks to the presence of a cannula and a piston, to push the folded implant into the cannula, the cannula being able to be introduced into the incision made in the cornea.
- the present invention relates to the first type of implant folding device, that is to say the clamp type.
- An object of the present invention is to provide a folding device which ensures the correct positioning of the optical part of the implant during the folding operation.
- the device for folding intraocular implants at least the optical part of which is made of a flexible material, comprises two folding elements facing each other, the ends of which are connected between them by deformable means making it possible to bring the two folding elements together manually, each element comprising a body and a jaw projecting from said body capable of receiving a part of the periphery of said optical part and of supporting said implant.
- each folding element further comprises:
- an elastically deformable support projecting from said body in the direction of approximation and having a first end secured to the body and a second end;
- a positioning pin projecting from said second end of the support perpendicular to said support and turned upward to cooperate, at rest, with the periphery of the optical part of the implant;
- An extension projecting from said body in the direction of approximation comprising ramp means capable of cooperating with the support of the other folding element during bringing the two folding elements together to cause the lowering of said positioning pin relative to the plane defined by the two jaws by elastic deformation of said support.
- the implant folding device further comprises:
- an elastically deformable additional support projecting out of the body of one of the folding elements and comprising at its free end a member for guiding the folding direction, said member projecting upwards relative to said additional support and disposed at rest in below the plane defined by said jaws;
- an additional extension projecting from the body of the other folding element comprising first and second means forming a ramp capable of cooperating successively with said additional support to first cause the lifting between said jaws of said folding guide member the implant above the plane defined by said jaws and then the return of said folding guide member to its initial position.
- this improved embodiment of the folding device makes it possible to define the folding direction of the implant, that is to say to force the latter to fold "upwards" relative to the normal position for using the device.
- the progressive lifting of the bending direction guide member in a diametrical direction of the optical part initially imposes the direction of folding of this optical part and therefore the direction of folding which will ultimately be obtained.
- the folding direction guide member gradually retracts after the folding direction has been imposed in such a way that the presence of this guide member does not does not prevent complete folding of the optical part of the implant.
- FIG. 3 is a sectional view along the plane III-III of Figure 2 showing the cooperation of the positioning pin with the ramp causing the lowering thereof;
- FIG. 4A is a vertical sectional view of the entire folding device according to an improved embodiment.
- Figure 4B is a top view of the folding device shown in Figure 4A.
- the folding device is constituted by two folding elements respectively referenced 10 and 12 which are identical in this first embodiment. Only the folding element 10 shown in FIG. 1 will therefore be described in detail.
- the folding element 10 comprises a central body 14 which is relatively solid and relatively non-deformable.
- the body 14 is extended at each of its ends by wings 16 and 18 which are elastically deformable.
- the wings 16 and 18 end in lugs 20 and conjugate bearing surfaces 22 allowing the at least temporary joining of the two folding elements 10 and 12.
- the body 14 has in its median plane P, P 'a jaw 24 which projects from the internal face 14a of the body.
- This jaw 24 is constituted by a support element for the implant 26 and an upper extension 28, the assembly of the support element 26 and the upper extension 28 defining a profile substantially in dovetail in which can engaging a portion of the periphery of the optical part of the implant to be folded.
- a lateral part 32 of the extension 30 defines a guide ramp 34 directed downwards which decreases when one approaches the wall 14a of the body 14.
- a third extension 36 which also protrudes from the face 14a of the body 14 and which constitutes an elastically deformable arm relative to the body 14.
- the arm 36 Near its free end 36a the arm 36 is provided with a part 37 to cooperate with the ramp 34 of the other folding assembly.
- the arm 36 is also provided with a positioning pin 38 extending upwards relative to the folding device in its position of use, that is to say its position shown in FIG. 2.
- the extension 30 and more precisely its ramp portion 34 and the arm 36 are arranged in such a way that the extension 30 of one folding element is arranged opposite the arm 36 of the other folding element in such a way that, when the 'the bodies 14 of the two folding elements are brought together by elastic deformation of the branches 16 and 18, the ramp 34 cooperates with the part 37 of the arm 36 to cause the progressive lowering of the latter and therefore simultaneously the lowering of the positioning pin 38.
- the optical part A of the implant is perfectly positioned relative to the folding device thanks to the two jaws 24 and the two positioning pins 38.
- the two bodies 14 of the elements folding are brought together, the approximation of the jaws 24 which results in the folding of the optical part of the implant according to its diameter perpendicular to the direction of approximation.
- the ramps 34 cause the lowering of the positioning pins 38 which allow, by their retraction, the complete folding of the optical part of the implant.
- FIG. 1 there is also shown, on either side of the assembly constituted by the jaws by the extension 30 and by the arm 36, elastic clips 40 and 42.
- the first clip 40 has two clipping notches, respectively referenced 44 and 46 while the clipping element 42 has only one notch 48.
- the clipping elements of the two folding elements arranged opposite one another make it possible to define a first relative position of the folding elements by cooperation of the clipping notches 44 and 48. They also make it possible to define a second relative position of the folding elements by cooperation of the clipping notches 46 and 48. In this second position, the optical part of the implant has been completely folded. In this latter position, the optical part of the implant can therefore be kept in the folded position while the surgeon grasps the folded optical part of the implant using surgical forceps.
- the outer face 14b of the bodies 14 of the folding elements has an upper part which forms a sort of flange 50 and a recessed running part 52 which has a substantially cylindrical sector shape.
- the operator places his fingers on the surfaces 52 below the flanges 50 as indicated by the arrows P. It is thus possible to bring about the manual approximation of the two folding elements 10 and 12 until obtaining the effective folding of the optical part of the implant.
- the folding device may preferably include a member for guiding the direction of folding of the implant which is shown in FIGS. 4A and 4B.
- the direction of folding of the implant is defined by a guide member 60 which has the general shape of a dihedral 62 having an edge 64 in the form of an edge.
- the elastically deformable arm 66 extends in the median plane P, P 'of the body 14 of the folding element 10. The length of the arm 66 is such that the edge 64 of the guide member is arranged according to a diameter of the optics A of the implant when the two folding elements are in their initial relative position in which the periphery of the optical part is engaged in the jaws 24.
- the guide member 60 is directed upward relative to the position of use of the device and its edge is disposed below the support 26 of the jaws 24.
- the guide member 60 is extended by a heel 66 stretching down.
- the folding element 12 is provided with an extension 70 which protrudes from the face 14a of the body 14 of the other folding element 12 and according to the median plane thereof so that, when the two folding elements, the extension 70 can cooperate with the heel 68 of the guide member 60.
- the upper face of the extension 70 defines towards its free end 70a a first ramp 72 which rises from the free end 70a to an edge 74.
- the extension 70 comprises a second ramp 76 which descends from the edge 74 towards the face 14a of the body 14 of the folding element.
- the ramps 72 and 76 are defined in such a way that, in the first part of the phase of bringing the two folding elements together, the ramp 72 causes the edge 64 of the guide element 60 to gradually rise. This edge 64 acts on the underside DP of the optical part A of the implant, thus imposing the upward folding direction. As soon as the heel 68 passes beyond the edge 74 separating the ramps 72 and 76, the ramp 76 allows the progressive lowering of the guide member 60, so that it returns to its initial vertical position . In the second approximation phase, the lowering of the guide member 60 allows it to be retracted, which allows complete folding of the optical part of the intraocular implant.
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
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002468757A CA2468757A1 (fr) | 2001-11-30 | 2002-11-28 | Dispositif de pliage d'implants intraoculaires souples |
US10/495,177 US7229449B2 (en) | 2001-11-30 | 2002-11-28 | Device for folding flexible intraocular implants |
JP2003546792A JP2005510294A (ja) | 2001-11-30 | 2002-11-28 | 可撓性眼内インプラント折り曲げ装置 |
AU2002364617A AU2002364617A1 (en) | 2001-11-30 | 2002-11-28 | Device for folding flexible intraocular implants |
EP02803844A EP1448120A2 (fr) | 2001-11-30 | 2002-11-28 | Dispositif de pliage d implants intraoculaires souples |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/15491 | 2001-11-30 | ||
FR0115491A FR2832921B1 (fr) | 2001-11-30 | 2001-11-30 | Dispositif de pliage d'implants intraoculaires souples |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003045286A2 true WO2003045286A2 (fr) | 2003-06-05 |
WO2003045286A3 WO2003045286A3 (fr) | 2003-12-11 |
Family
ID=8869960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/004081 WO2003045286A2 (fr) | 2001-11-30 | 2002-11-28 | Dispositif de pliage d'implants intraoculaires souples |
Country Status (7)
Country | Link |
---|---|
US (1) | US7229449B2 (fr) |
EP (1) | EP1448120A2 (fr) |
JP (1) | JP2005510294A (fr) |
AU (1) | AU2002364617A1 (fr) |
CA (1) | CA2468757A1 (fr) |
FR (1) | FR2832921B1 (fr) |
WO (1) | WO2003045286A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011138790A1 (fr) * | 2010-05-06 | 2011-11-10 | Nulens Ltd | Appareil d'injection destiné à injecter une lentille intraoculaire |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070010879A1 (en) * | 2005-07-07 | 2007-01-11 | Gregg Feinerman | Injector system for a lens |
US8273122B2 (en) * | 2008-06-23 | 2012-09-25 | Abbott Medical Optics Inc. | Pre-loaded IOL insertion system |
US20110166555A1 (en) * | 2009-09-30 | 2011-07-07 | Jianbo Zhou | Carrier for an insertable medical device, insertion tools, methods of use, and kits |
WO2012027517A2 (fr) | 2010-08-24 | 2012-03-01 | Abbott Medical Optics Inc. | Capuchon de protection pour un dispositif d'insertion et autres éléments de dispositif d'insertion |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702400A (en) * | 1996-12-11 | 1997-12-30 | Alcon Laboratories, Inc. | Intraocular lens folder |
EP0923914A1 (fr) * | 1997-12-16 | 1999-06-23 | Moria SA | Dispositif de pliage et de maintien plié d'un implant intraoculaire souple |
-
2001
- 2001-11-30 FR FR0115491A patent/FR2832921B1/fr not_active Expired - Fee Related
-
2002
- 2002-11-28 WO PCT/FR2002/004081 patent/WO2003045286A2/fr active Application Filing
- 2002-11-28 EP EP02803844A patent/EP1448120A2/fr not_active Withdrawn
- 2002-11-28 US US10/495,177 patent/US7229449B2/en not_active Expired - Fee Related
- 2002-11-28 JP JP2003546792A patent/JP2005510294A/ja active Pending
- 2002-11-28 CA CA002468757A patent/CA2468757A1/fr not_active Abandoned
- 2002-11-28 AU AU2002364617A patent/AU2002364617A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5702400A (en) * | 1996-12-11 | 1997-12-30 | Alcon Laboratories, Inc. | Intraocular lens folder |
EP0923914A1 (fr) * | 1997-12-16 | 1999-06-23 | Moria SA | Dispositif de pliage et de maintien plié d'un implant intraoculaire souple |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011138790A1 (fr) * | 2010-05-06 | 2011-11-10 | Nulens Ltd | Appareil d'injection destiné à injecter une lentille intraoculaire |
Also Published As
Publication number | Publication date |
---|---|
US7229449B2 (en) | 2007-06-12 |
EP1448120A2 (fr) | 2004-08-25 |
FR2832921A1 (fr) | 2003-06-06 |
WO2003045286A3 (fr) | 2003-12-11 |
FR2832921B1 (fr) | 2004-02-20 |
AU2002364617A1 (en) | 2003-06-10 |
CA2468757A1 (fr) | 2003-06-05 |
JP2005510294A (ja) | 2005-04-21 |
US20040199172A1 (en) | 2004-10-07 |
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