FR2855746A1 - Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation - Google Patents
Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation Download PDFInfo
- Publication number
- FR2855746A1 FR2855746A1 FR0310937A FR0310937A FR2855746A1 FR 2855746 A1 FR2855746 A1 FR 2855746A1 FR 0310937 A FR0310937 A FR 0310937A FR 0310937 A FR0310937 A FR 0310937A FR 2855746 A1 FR2855746 A1 FR 2855746A1
- Authority
- FR
- France
- Prior art keywords
- guide tube
- wire
- handle
- capsule
- cutting
- 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.)
- Withdrawn
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
- 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
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00754—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments for cutting or perforating the anterior lens capsule, e.g. capsulotomes
Abstract
Description
La présente invention concerne un dispositif permettant leThe present invention relates to a device allowing the
découpage avec une grande précision de la capsule antérieure du cristallin au cours de chirurgie de la cataracte. Cette découpe est un temps initial essentiel dans cette intervention, permettant d'enlever une partie de l'enveloppe du cristallin ( capsule, dont l'épaisseur est de quelques microns) afin d'accéder à son contenu (noyau,cortex) qui sera ensuite extrait à travers cet orifice capsulaire. cutting with great precision of the anterior lens capsule during cataract surgery. This cutting is an essential initial time in this intervention, allowing to remove a part of the envelope of the lens (capsule, whose thickness is a few microns) in order to access its content (nucleus, cortex) which will then be extracted through this capsular orifice.
Le découpage de cette capsule, appelé capsulorhéxis, est réalisé actuellement de trois manières, soit par une aiguille dont l'extrémité pointue et à bords tranchants est recourbée à 90 par rapport à son axe principal ( kystitome), soit à l'aide d'une pince à mors courbes et à extrémités semblables à celles du kystitome, soit enfin à l'aide d'une lame qui réalise la découpe par sa mise en mouvement grace à un système motorisé . Dans les deux premiers cas, les plus largement 15 utilisés, deux types d'inconvénients existent: d'une part la découpe nécessite plusieurs temps de dissection de la capsule rendant difficile la réalisation d'un bord parfaitement régulier avec risques de déchirures vers la périphérie de la capsule, d'autre part il y a une absence de précision pourtant recherchée de la taille et de la forme de cette coupe ( 20 la détermination rigoureuse du diamètre exact du lambeau capsulaire est impossible, et toujours approximative) . Dans le troisième cas, il s'agit d'une découpe par mécanisme motorisé complexe d'une lame sur la capsule, ce qui ne permet pas une découpe directe sur 360 du fait de la disposition de sortie de lame hors de son manche, et dont l'action 25 de coupe n'est rendue possible que par la mise en mouvement de la dite lame sur la capsule. The cutting of this capsule, called capsulorhexis, is currently carried out in three ways, either by a needle whose pointed end and with sharp edges is bent at 90 relative to its main axis (cystitome), or using forceps with curved jaws and ends similar to those of the cystitome, or finally using a blade which performs the cutting by setting it in motion thanks to a motorized system. In the first two cases, the most widely used, two types of drawbacks exist: on the one hand cutting requires several dissection times of the capsule making it difficult to produce a perfectly regular edge with the risk of tearing towards the periphery of the capsule, on the other hand there is an absence of precision, however sought after, of the size and of the shape of this cut (the rigorous determination of the exact diameter of the capsular flap is impossible, and always approximate). In the third case, it is a cutting by complex motorized mechanism of a blade on the capsule, which does not allow a direct 360 cutting because of the blade outlet arrangement outside its handle, and the cutting action of which is made possible only by setting the said blade in motion on the capsule.
Le dispositif selon l'invention permet de remédier à ces inconvénients. Il comporte en effet selon une première caractéristique un fil circulaire déformable ayant une excellente mémoire de forme dont le bord inférieur est tranchant tandis qu'une portion du bord supérieur est solidarisé à un manche. L'ensemble (fil et manche) est introduit entièrement dans un tube guide dans lequel il peut coulisser. Le fil ainsi contenu dans ce tube guide, son bord inférieur tranchant n'a aucune agressivité tissulaire au cours de son introduction dans l'oeil. Le tube guide est introduit ainsi à l'intérieur de l'oeil jusqu'à la partie centrale (pupille) . L'opérateur n'a plus alors qu'à pousser sur le manche pour faire sortir le fil du tube guide (fourreau), le fil retrouvant alors sa forme circulaire initiale, puis à appliquer simplement la face inférieure tranchante de ce fil sur la capsule du cristallin pour en effectuer la découpe en un seul temps et avec une extrême précision qualitative ( régularité de sphéricité du bord périphérique du lambeau capsulaire découpé) et quantitative (diamètre et forme de capsule découpée). Sitôt la découpe réalisée un mouvement inverse de traction sur le manche permet de réintroduire le fil dans son fourreau (tube 15 guide) afin que l'ensemble puisse être sorti de l'oeil sans risque de blessure par le bord tranchant du fil. De plus, le fait d'introduire le fil replié dans le tube guide réduit la taille de l'incision d'entrée de l'instrument au minimum, c'est à dire à celle de la largeur du tube guide. Le déplacement du manche dans le tube guide est réalisé par 20 simple action mécanique sur une pièce à main solidaire de l'extremité distale du manche. The device according to the invention overcomes these drawbacks. According to a first characteristic, it indeed comprises a deformable circular wire having an excellent shape memory, the lower edge of which is sharp while a portion of the upper edge is secured to a handle. The assembly (wire and handle) is completely introduced into a guide tube in which it can slide. The wire thus contained in this guide tube, its sharp cutting edge has no tissue aggressiveness during its introduction into the eye. The guide tube is thus introduced inside the eye to the central part (pupil). The operator then only has to push on the handle to take the wire out of the guide tube (sheath), the wire then regaining its initial circular shape, then simply apply the sharp underside of this wire on the capsule of the lens to cut it in a single time and with extreme qualitative precision (regularity of sphericity of the peripheral edge of the cut capsular flap) and quantitative (diameter and shape of cut capsule). As soon as the cut is made, a reverse traction movement on the handle allows the wire to be reintroduced into its sheath (guide tube 15) so that the assembly can be removed from the eye without risk of injury by the sharp edge of the wire. In addition, the fact of introducing the folded wire into the guide tube reduces the size of the entry incision of the instrument to the minimum, that is to say that of the width of the guide tube. The displacement of the handle in the guide tube is achieved by simple mechanical action on a handpiece secured to the distal end of the handle.
Selon des modes particuliers de réalisation: -le tube guide peut avoir une forme ovalaire, rectangulaire ou toute autre forme. According to particular embodiments: the guide tube can have an oval, rectangular or any other shape.
-le manche peut être de forme rectangulaire ou de tout autre forme autorisant son coulissage dans le tube guide. the handle can be rectangular or any other shape allowing it to slide in the guide tube.
-le fil circulaire peut être de coupe triangulaire (à pointe inférieure et base supérieure), ou polygonale (à bords inférieur tranchant), ou de toute autre forme. the circular wire can be of triangular cut (with lower point and upper base), or polygonal (with lower sharp edges), or of any other shape.
-le fil peut être de dimensions variables. -the wire can be of variable dimensions.
-le fil peut être métallique, plastique ou de tout autre constitution. -the wire can be metallic, plastic or any other constitution.
-le manche peut être solidarisé par son extrémité distale, proximale ou tout autre segment à une pièce à main, elle même solidarisée au tube guide. -the handle can be secured by its distal, proximal end or any other segment to a handpiece, itself secured to the guide tube.
Les dessins annexés illustrent l'invention: La figure 1 représente le dispositif de l'invention vu par sa face inférieure avec le fil circulaire, le manche et le tube guide. The accompanying drawings illustrate the invention: Figure 1 shows the device of the invention seen from its underside with the circular wire, the handle and the guide tube.
La figure 2 représente le dispositif de l'invention avec le fil introduit dans le tube guide et le manche en position de rétraction maximale[ A], puis avec le fil totalement sorti du tube guide et le manche en position 10 de poussée maximale [ C], et en position intermédiaire [ B] . En référence à ces dessins, le dispositif comporte un fil circulaire (1), dont une portion de la face supérieure (2) est solidaire d'un manche (3), et dont le bord inférieur (4) est tranchant sur toute sa circonférence. FIG. 2 shows the device of the invention with the wire introduced into the guide tube and the handle in the maximum retraction position [A], then with the wire completely removed from the guide tube and the handle in the maximum thrust position [C ], and in the intermediate position [B]. With reference to these drawings, the device comprises a circular wire (1), a portion of the upper face (2) of which is integral with a handle (3), and the lower edge (4) of which is sharp over its entire circumference. .
L'ensemble fil-manche coulisse à l'intérieur d'un tube guide (5) . La course du manche (3) dans le tube guide (5) est actionnée par une pièce à main (6) solidaire de l'extrémité distale du manche (7) . C'est grace à sa capacité de déformabilité que le fil (1) pourra s'insérer dans le tube guide (5) lorsque le manche (3) est tiré vers l'arrière. C'est grace aussi à sa parfaite mémoire de forme qu'il (1) reprendra sa forme initiale circulaire lorsqu'on le sortira du tube guide (5) par une poussée du manche (3) vers l'avant. The wire-sleeve assembly slides inside a guide tube (5). The stroke of the handle (3) in the guide tube (5) is actuated by a handpiece (6) integral with the distal end of the handle (7). It is thanks to its deformability that the wire (1) can be inserted into the guide tube (5) when the handle (3) is pulled back. It is also thanks to its perfect shape memory that it (1) will resume its initial circular shape when it is removed from the guide tube (5) by pushing the handle (3) forward.
A titre d'exemple non limitatif, le fil sera circulaire de 8 mm de diamètre et de coupe triangulaire à base supérieure. L'épaisseur du fil sera de 300 microns et la largeur de sa face supérieure de 500 microns. 25 La largeur externe du tube guide sera de 2 mm, sa hauteur de 1 mm et sa longueur de 20 mm. La longueur du manche sera de 30 mm et celle de la pièce à main de 20 mm. By way of nonlimiting example, the wire will be circular with a diameter of 8 mm and a triangular cut with an upper base. The thickness of the wire will be 300 microns and the width of its upper face 500 microns. The external width of the guide tube will be 2 mm, its height 1 mm and its length 20 mm. The length of the handle will be 30 mm and that of the handpiece 20 mm.
Le dispositif selon l'invention est particulièrement destiné au découpage de la capsule antérieure du cristallin (capsulorhéxis) au cours de la chirurgie de la cataracte. The device according to the invention is particularly intended for cutting the anterior capsule of the lens (capsulorhexis) during cataract surgery.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0310937A FR2855746A1 (en) | 2003-06-03 | 2003-09-15 | Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0306764A FR2855745A1 (en) | 2003-06-03 | 2003-06-03 | Intraocular lens capsule part cutting device for cataract surgery, has ring with cutting edge, folded in guide tube during its insertion into eye and unfolded to be applied on capsule for repeatedly performing cutting operation |
FR0310937A FR2855746A1 (en) | 2003-06-03 | 2003-09-15 | Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2855746A1 true FR2855746A1 (en) | 2004-12-10 |
Family
ID=33454507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0310937A Withdrawn FR2855746A1 (en) | 2003-06-03 | 2003-09-15 | Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2855746A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2924924A1 (en) * | 2007-12-17 | 2009-06-19 | Pascal Pietrini | Anterior capsule i.e. crystalline capsule, removing device for cataract operation, has cannula and section that are arranged such that section is moved between positions, where section is advanced in part outside cannula in one position |
WO2010044988A1 (en) * | 2008-10-13 | 2010-04-22 | Alcon Research, Ltd. | Capsularhexis device with flexible heating element |
GB2443163B (en) * | 2006-10-23 | 2011-05-18 | Biomet Uk Ltd | Shoulder prosthesis |
US8137344B2 (en) | 2008-12-10 | 2012-03-20 | Alcon Research, Ltd. | Flexible, automated capsulorhexis device |
US8157797B2 (en) | 2009-01-12 | 2012-04-17 | Alcon Research, Ltd. | Capsularhexis device with retractable bipolar electrodes |
USD707818S1 (en) | 2013-03-05 | 2014-06-24 | Alcon Research Ltd. | Capsulorhexis handpiece |
US8814854B2 (en) | 2009-06-03 | 2014-08-26 | Alcon Research, Ltd. | Capsulotomy repair device and method for capsulotomy repair |
USD737438S1 (en) | 2014-03-04 | 2015-08-25 | Novartis Ag | Capsulorhexis handpiece |
US9149388B2 (en) | 2010-09-29 | 2015-10-06 | Alcon Research, Ltd. | Attenuated RF power for automated capsulorhexis |
WO2015169426A1 (en) * | 2014-05-05 | 2015-11-12 | Duville, Francisco Bernardo | Circular scalpel for anterior capsulotomy of the lens in cataract surgery and scalpel's injector/extractor |
US9241755B2 (en) | 2010-05-11 | 2016-01-26 | Alcon Research, Ltd. | Capsule polishing device and method for capsule polishing |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4012882A1 (en) * | 1990-04-23 | 1991-10-31 | Michael Dr Med Sasu | Surgical instrument for removing cataract from eye - has circular blade which is rotated by drive in handle |
EP1010410A1 (en) * | 1998-12-16 | 2000-06-21 | Optisoins SA | Surgical instrument for cutting the lens capsule |
WO2000048540A1 (en) * | 1999-02-17 | 2000-08-24 | Dionissios Christopoulos | Surgical knife - capsulotome |
WO2001056519A1 (en) * | 2000-02-03 | 2001-08-09 | Cutmed Ltd. | A medical instrument for use in cataract surgery and a method for use thereof |
WO2001060266A1 (en) * | 2000-02-18 | 2001-08-23 | Matthew Feinsod | Incising apparatus for use in cataract surgery |
-
2003
- 2003-09-15 FR FR0310937A patent/FR2855746A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4012882A1 (en) * | 1990-04-23 | 1991-10-31 | Michael Dr Med Sasu | Surgical instrument for removing cataract from eye - has circular blade which is rotated by drive in handle |
EP1010410A1 (en) * | 1998-12-16 | 2000-06-21 | Optisoins SA | Surgical instrument for cutting the lens capsule |
WO2000048540A1 (en) * | 1999-02-17 | 2000-08-24 | Dionissios Christopoulos | Surgical knife - capsulotome |
WO2001056519A1 (en) * | 2000-02-03 | 2001-08-09 | Cutmed Ltd. | A medical instrument for use in cataract surgery and a method for use thereof |
WO2001060266A1 (en) * | 2000-02-18 | 2001-08-23 | Matthew Feinsod | Incising apparatus for use in cataract surgery |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443163B (en) * | 2006-10-23 | 2011-05-18 | Biomet Uk Ltd | Shoulder prosthesis |
FR2924924A1 (en) * | 2007-12-17 | 2009-06-19 | Pascal Pietrini | Anterior capsule i.e. crystalline capsule, removing device for cataract operation, has cannula and section that are arranged such that section is moved between positions, where section is advanced in part outside cannula in one position |
WO2010044988A1 (en) * | 2008-10-13 | 2010-04-22 | Alcon Research, Ltd. | Capsularhexis device with flexible heating element |
US9125720B2 (en) | 2008-10-13 | 2015-09-08 | Alcon Research, Ltd. | Capsularhexis device with flexible heating element |
US8137344B2 (en) | 2008-12-10 | 2012-03-20 | Alcon Research, Ltd. | Flexible, automated capsulorhexis device |
US8157797B2 (en) | 2009-01-12 | 2012-04-17 | Alcon Research, Ltd. | Capsularhexis device with retractable bipolar electrodes |
US8814854B2 (en) | 2009-06-03 | 2014-08-26 | Alcon Research, Ltd. | Capsulotomy repair device and method for capsulotomy repair |
US9241755B2 (en) | 2010-05-11 | 2016-01-26 | Alcon Research, Ltd. | Capsule polishing device and method for capsule polishing |
US9149388B2 (en) | 2010-09-29 | 2015-10-06 | Alcon Research, Ltd. | Attenuated RF power for automated capsulorhexis |
US9351872B2 (en) | 2010-09-29 | 2016-05-31 | Alcon Research, Ltd. | Attenuated RF power for automated capsulorhexis |
USD707818S1 (en) | 2013-03-05 | 2014-06-24 | Alcon Research Ltd. | Capsulorhexis handpiece |
USD737438S1 (en) | 2014-03-04 | 2015-08-25 | Novartis Ag | Capsulorhexis handpiece |
WO2015169426A1 (en) * | 2014-05-05 | 2015-11-12 | Duville, Francisco Bernardo | Circular scalpel for anterior capsulotomy of the lens in cataract surgery and scalpel's injector/extractor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1335672B1 (en) | Drilling device comprising a bone recuperating trephine | |
CA1315630C (en) | Puncture cannula, its handle and its manufacture | |
EP1848374B1 (en) | Flexible intraocular implant injector | |
FR2855746A1 (en) | Intraocular lens capsule part cutting device for cataract surgery, has circular wire with cutting edge and rolled in guide tube during its insertion into eye and unrolled to be applied on capsule to repeatedly perform cutting operation | |
EP0653193A1 (en) | Subcutaneous locating device and related medical prosthesis | |
WO2008043917A2 (en) | Multiple-needle surgical wire guide for a hollow organ and corresponding system | |
EP3076883B1 (en) | Biopsy trocar | |
FR2742331A1 (en) | Instrument for endoscopic treatment | |
FR2855745A1 (en) | Intraocular lens capsule part cutting device for cataract surgery, has ring with cutting edge, folded in guide tube during its insertion into eye and unfolded to be applied on capsule for repeatedly performing cutting operation | |
FR2924924A1 (en) | Anterior capsule i.e. crystalline capsule, removing device for cataract operation, has cannula and section that are arranged such that section is moved between positions, where section is advanced in part outside cannula in one position | |
EP1458315A1 (en) | Medical device for explantation | |
EP0014150A2 (en) | Cervical biopsy sampling instrument | |
EP1010410A1 (en) | Surgical instrument for cutting the lens capsule | |
FR2886839A1 (en) | Cavity forming device for intervertebral disk of patient, has blade holding rod carrying blade which is in form of spring, and another rod with scale marks enabling blade to penetrate deeply into intervertebral disk to form cavity | |
FR2830186A1 (en) | Instrument for making incision in sclera of eye for inserting infusion cannula that is held in place during surgical operation | |
WO2011042669A1 (en) | Instrument for surgical treatment of carpal tunnel syndrome by means of endoscopy | |
EP0727971B1 (en) | Punch forceps type surgical instrument for eye surgery | |
FR2981270A1 (en) | Ophthalmic surgical instrument for capsulorhexis, has set of tools comprising elongated bodies with working ends, and blade guide unit extending into body in insertion position, where each working end is arranged to rotate with guide unit | |
WO2009004140A2 (en) | Device for treatment of watering of the eye | |
EP0485279A1 (en) | Dissector, especially for endoscopic surgery | |
FR2615725A1 (en) | INSTRUMENT FOR SURGICAL TISSUE TREATMENT | |
FR2649000A1 (en) | Tool for opening oysters | |
FR2661604A1 (en) | Prostate prosthesis, a device for its introduction or removal, and a device for its adjustment | |
FR2727616A1 (en) | Vein stripping instrument for ablation by invagination | |
FR2695321A1 (en) | Device for introducing a catheter into the human body. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |
Effective date: 20070531 |