WO2003043547A1 - Procede de rognage d'une cartouche d'injecteur de lentilles intraoculaires - Google Patents

Procede de rognage d'une cartouche d'injecteur de lentilles intraoculaires Download PDF

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Publication number
WO2003043547A1
WO2003043547A1 PCT/US2002/026437 US0226437W WO03043547A1 WO 2003043547 A1 WO2003043547 A1 WO 2003043547A1 US 0226437 W US0226437 W US 0226437W WO 03043547 A1 WO03043547 A1 WO 03043547A1
Authority
WO
WIPO (PCT)
Prior art keywords
tipping
distal tip
intraocular lens
injection nozzle
cartridge
Prior art date
Application number
PCT/US2002/026437
Other languages
English (en)
Inventor
David A. Downer
John R. Periard
Original Assignee
Alcon, Inc.
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 Alcon, Inc. filed Critical Alcon, Inc.
Priority to AU2002323272A priority Critical patent/AU2002323272A1/en
Publication of WO2003043547A1 publication Critical patent/WO2003043547A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/0861—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using radio frequency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor

Definitions

  • This invention relates to intraocular lenses (IOLs) and more particularly to cartridges used to inject IOLs into an eye.
  • the human eye in its simplest terms functions to provide vision by transmitting and refracting light through a clear outer portion called the cornea, and further focusing the image by way of lens onto the retina at the back of the eye.
  • the quality of the focused image depends on many factors including the size, shape and length of the eye, and the shape and transparency of the cornea and lens.
  • cataract When trauma, age or disease cause the lens to become less transparent, vision deteriorates because of the diminished light which can be transmitted to the retina. This deficiency in the lens of the eye is medically known as a cataract.
  • the treatment for this condition is surgical removal of the lens and implantation of an artificial lens or IOL.
  • the present invention improves upon prior art injector cartridges by providing a cartridge having a distal tip that has been smoothed by inserting the tip into a tipping die.
  • the die is heated to at or above the melting temperature of the tip, thereby smoothing any molding flash or sharp or rough edges from the tip.
  • FIG. 1 is a perspective view of an intraocular lens cartridge that may be used with the method of the present invention.
  • FIG. 2 is a schematic illustration of a tipping fixture that may be used with the method of the present invention.
  • intraocular lens injector cartridge 110 of the present invention generally has body 112 and injection nozzle 114 containing distal tip 115.
  • Cartridge 110 preferably is molded as a single piece from any suitable thermoplastic,' such as polyproplyene, and the thermoplastic may contain a lubricity enhancing agent such as those disclosed in U.S. Patent No. 5,716,364, or may be coated with a lubricous coating such as those described in U.S. Patent Nos. 4,487,865, 4,500,676, 4,663,233, 4,801,475, 4,959,074, 5,023,114 and 5,037,677, the entire contents of which are incorporated herein by reference.
  • Nozzle 114 preferably is round, oval or elliptical in cross-section and has a cross-sectional area of preferably between 1.0 mm 2 to around 6.5 mm 2 at distal tip 115.
  • Suitable designs for cartridge 110 are illustrated in U.S. Patent Nos! 5,947,976, 6,083,231 and 6,143,001, the entire contents of which are incorporated herein by reference.
  • Distal tip 115 preferably is smooth and rounded in order to minimize trauma to the surgical site as well as damage to the lens during use. Typically, distal tip 115 contains sharp edges or molding flash.
  • the tipping method of the present invention uses tipping fixture 20 having a tipping die 22, as best seen in FIG. 2. Die 22 is shaped to receive nozzle 114, and to shape or form distal tip 115 into any desired configuration. Cartridge 110 is placed in die 22 over pin 24 (pin 24 helps to maintain the interior diameter of nozzle 114 during the tipping process). Die 22 is then heated by, for example, radio frequency (RF) energy, to at or near the melting temperature of the material used to manufacture cartridge 110.
  • RF radio frequency
  • Distal tip 115 is softened by the heating of die 22 and conforms to the shape of die 22, thereby removing any molding defects.
  • Suitable tipping fixtures 20 are commercially available Engineering & Research Associates, Inc., Arlington, Arizona, under the trademark PIRF® and described in U.S. Patent Nos. 5,160,396 and 5,306,377 (Jensen, et al.), the entire contents of which being incorporated herein by reference.

Abstract

L'invention concerne un procédé de lissage de la pointe (115) d'une cartouche de lentilles intraoculaires (110) qui consiste à introduire la pointe (115) dans une matrice de rognage, puis à chauffer cette matrice à une température de fusion égale ou supérieure à la température de fusion de la matière utilisée pour fabriquer la pointe (115), de manière à donner à la pointe distale (115) la forme de la matrice de rognage et lisser les bavures ou les bords coupants ou rugueux (115).
PCT/US2002/026437 2001-11-15 2002-08-20 Procede de rognage d'une cartouche d'injecteur de lentilles intraoculaires WO2003043547A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002323272A AU2002323272A1 (en) 2001-11-15 2002-08-20 Method of tipping an intraocular lens injector cartridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US99948601A 2001-11-15 2001-11-15
US09/999,486 2001-11-15

Publications (1)

Publication Number Publication Date
WO2003043547A1 true WO2003043547A1 (fr) 2003-05-30

Family

ID=25546387

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/026437 WO2003043547A1 (fr) 2001-11-15 2002-08-20 Procede de rognage d'une cartouche d'injecteur de lentilles intraoculaires

Country Status (2)

Country Link
AU (1) AU2002323272A1 (fr)
WO (1) WO2003043547A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1935614A1 (fr) * 2006-12-22 2008-06-25 Smiths Group plc Appareil et procédés de formation d'extrémité de tubes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160396A (en) * 1991-02-11 1992-11-03 Engineering & Research Associates, Inc. Low thermal inertia heater
US5571113A (en) * 1992-05-18 1996-11-05 Henry H. McDonald Surgical probe with tips for plastic lens implantation in the eye
US5662659A (en) * 1993-03-18 1997-09-02 Mcdonald; Henry H. Endwise adjustable eye forceps
US5947976A (en) * 1998-06-02 1999-09-07 Alcon Laboratories, Inc. Asymmetric intraocular lens injection cartridge
US5957881A (en) * 1995-04-17 1999-09-28 Xomed Surgical Products, Inc. Sinus debrider apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160396A (en) * 1991-02-11 1992-11-03 Engineering & Research Associates, Inc. Low thermal inertia heater
US5571113A (en) * 1992-05-18 1996-11-05 Henry H. McDonald Surgical probe with tips for plastic lens implantation in the eye
US5662659A (en) * 1993-03-18 1997-09-02 Mcdonald; Henry H. Endwise adjustable eye forceps
US5957881A (en) * 1995-04-17 1999-09-28 Xomed Surgical Products, Inc. Sinus debrider apparatus
US5947976A (en) * 1998-06-02 1999-09-07 Alcon Laboratories, Inc. Asymmetric intraocular lens injection cartridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1935614A1 (fr) * 2006-12-22 2008-06-25 Smiths Group plc Appareil et procédés de formation d'extrémité de tubes

Also Published As

Publication number Publication date
AU2002323272A1 (en) 2003-06-10

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