WO2019153058A1 - Agencement appliqué à une lentille intraoculaire avec éléments haptiques allongés et en aiguille - Google Patents

Agencement appliqué à une lentille intraoculaire avec éléments haptiques allongés et en aiguille Download PDF

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Publication number
WO2019153058A1
WO2019153058A1 PCT/BR2018/050033 BR2018050033W WO2019153058A1 WO 2019153058 A1 WO2019153058 A1 WO 2019153058A1 BR 2018050033 W BR2018050033 W BR 2018050033W WO 2019153058 A1 WO2019153058 A1 WO 2019153058A1
Authority
WO
WIPO (PCT)
Prior art keywords
haptics
intraocular lens
eye
lens
needled
Prior art date
Application number
PCT/BR2018/050033
Other languages
English (en)
Portuguese (pt)
Inventor
Nathan José DE SOUZA
Original Assignee
De Souza Nathan Jose
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 De Souza Nathan Jose filed Critical De Souza Nathan Jose
Publication of WO2019153058A1 publication Critical patent/WO2019153058A1/fr

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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
    • 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
    • A61F2002/1681—Intraocular lenses having supporting structure for lens, e.g. haptics
    • A61F2002/1683—Intraocular lenses having supporting structure for lens, e.g. haptics having filiform haptics

Definitions

  • This Utility Model patent application refers to an unprecedented three-piece intraocular lens being one optical part and two modified elongated haptics, of different lengths, initially of "C" shapes that derive to a section. needles without lumen that facilitates the handling and externalization of said haptics.
  • the human eye has a system of two natural lenses.
  • the first of these lenses is the cornea and the second is the lens.
  • these two lenses should deflect the rays of light entering the eye (refraction) to focus on the retina, which is the sensorine layer located at the back of the eye, which is responsible for transmitting the captured images to the brain.
  • surgery is performed to remove this opacified natural lens from the eye, leaving only a thin layer of the lens called a capsule, which will support the proper placement of an artificial intraocular lens.
  • the absence of lens is called aphakia and causes large refractive errors.
  • Aphakia is treated by placing artificial intraocular lenses inside the eye.
  • the lens is contained within a structure called the capsular sac, which is in turn attached to the inner part of the eye by a fiber network called the zonula.
  • the capsular sac which is in turn attached to the inner part of the eye by a fiber network called the zonula.
  • the zonula a fiber network
  • the artificial intraocular lens can also be attached to the sclera (white, opaque, dense part that gives resistance to the outside of the eye and is covering the posterior 5/6 of the eyeball) by suturing with threads in the sclera or by inserting the haptic itself into the sclera.
  • the sclera white, opaque, dense part that gives resistance to the outside of the eye and is covering the posterior 5/6 of the eyeball
  • Known lenses are made up of two parts.
  • a transparent optical part with the function of deflecting light rays through refraction and focusing them on the retina and the haptic with the function of fixing and stabilizing the lens within the eye.
  • the Japanese document lens applied in suture-free techniques for attaching the haptic itself to the sclera, uses three-piece lenses, one piece being the optical part and the other two pieces being the haptics, which are attached to the sclera, whose highlight is to present a locking means that avoids its return during the procedure and promotes fixation on the sclera.
  • Microforceps are used to pin the haptics toward the insulin needles.
  • the Intraocular Lens Arrangement with Long and Needle Haptics consists of a three-piece intraocular lens with an optical part from which two modified haptics are derived, ie of longer lengths than conventional intraocular lenses. They need to have their ends needled in order to facilitate the capture of the haptic in the anterior chamber of the eye during surgery, as well as its externalization with greater technical ease and minimal need for intraocular manipulation. This avoids the reflux of the haptics and achieves a safer procedure with fewer intra and postoperative complications.
  • the haptics may have a locking means.
  • Figure 1 Top view of the intraocular lens array with elongated and needled haptics.
  • Figure 2 Lateral view of the intraocular lens array with elongated and needled haptics, represented by arrow A in Figure 1.
  • Figure 3 Lateral view of the intraocular lens array with elongated and needled haptics, represented by arrow B of Figure 1.
  • Figure 4 Lateral view of the intraocular lens array with elongated and needled haptics, represented by arrow C in Figure 1.
  • Figure 6 Top view of intraocular lens arrangement with elongated and needled haptics after implantation and removal of needles.
  • Figure 7 Lateral view of the intraocular lens array with elongated and needled haptics after implantation and removal of needles represented by arrow D of Figure 1.
  • Figure 8 Top view of an intraocular lens array with elongated and needled haptics in a constructive variation without locking means.
  • Figure 9 Top view of the intraocular lens arrangement with elongated and needled haptics after implantation and removal of needles in constructive variation without locking means.
  • the Intraocular Lens Arrangement with Long and Needle Haptics is an intraocular lens (1) consisting of three parts and an optical part (2) from which two haptics (3 and 4) of longer lengths are derived, which take a needled constructive arrangement (5 and 6) at their ends, with the aim of facilitating the capture and externalization of the sclera avoiding its reflux into the eye (O).
  • the innovative intraocular lens (1) is comprised of three pieces being an optical part (2) of foldable or rigid material having a preferred diameter of 6mm but which may range from 4.5mm to 7.5mm , from which two C-shaped curvilinear conformal haptics (3 and 4) are derived to the locking means (7), represented by a thickening of the haptics, which prevents reflux into the eye (O) of the already exterior of the haptic (3 or 4) extending beyond the locking means.
  • the shorter length of the needled end (6) of the second haptic (4) is warranted to facilitate insertion through a small corneal incision when the optic part (2) is already positioned within the eye (O).
  • the thicknesses of the haptics (3 and 4) are about 0.15mm and the locking medium about 0.33mm, however such measurements may vary more or less.
  • the thickness of the optical part (2) will depend on the diopter of the lens and the constant / refractive index of the material used for its manufacture, such as hydrophilic or hydrophobic acrylic, silicone, among others.
  • the intraocular lens (1A) is made up of three parts, one optical part (2A) being two haptics (3A and 4A) of curvilinear “C” shape, at the end of which it has rectilinear conformation (3A 'and 4A') for a preferred length of 3mm, but which may vary from 1mm to 10mm from where it extends into a rectilinear needle construction (5A and 6A) at its ends in the same dimensions as above.
  • two lumen insulin needles are needed, which transfix the sclera at antipodal points about 1.5mm from the corneal limb, serving as a tunnel for the capture and externalization of the needles (5 and 6) without lumen of the innovated intraocular lens (1).
  • the needle ends (5 and 6) are inserted into the eye (O) through a corneal incision and are placed within the lumens of the respective insulin needles which transfix the sclera so that the haptic / needle end assembly can be externalized.

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 une lentille (1) intraoculaire formée par trois pièces, soit une partie optique (2) à partir de laquelle s'étendent deux éléments haptiques (3 et 4) plus allongés, lesquels présentent un agencement structural en aiguille (5 et 6) au niveau de leurs extrémités, visant à faciliter la capture et l'évacuation de la sclère tout en évitant un retour vers l'intérieur de l'oeil (O).
PCT/BR2018/050033 2018-02-07 2018-02-15 Agencement appliqué à une lentille intraoculaire avec éléments haptiques allongés et en aiguille WO2019153058A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR202018002611U BR202018002611U2 (pt) 2018-02-07 2018-02-07 disposição aplicada em lente intra-ocular com hápticos alongados e agulhados
BRBR2020180026114 2018-02-07

Publications (1)

Publication Number Publication Date
WO2019153058A1 true WO2019153058A1 (fr) 2019-08-15

Family

ID=67547759

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2018/050033 WO2019153058A1 (fr) 2018-02-07 2018-02-15 Agencement appliqué à une lentille intraoculaire avec éléments haptiques allongés et en aiguille

Country Status (2)

Country Link
BR (1) BR202018002611U2 (fr)
WO (1) WO2019153058A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282855A (en) * 1991-11-05 1994-02-01 Alcon Surgical, Inc. Vaulted intraocular lens having curved slanted haptic
US5405386A (en) * 1993-07-09 1995-04-11 Kabi Pharmacia Ophthalmics, Inc. Intraocular lens with improved cylindrical haptic
EP0438043B1 (fr) * 1990-01-19 1996-05-29 Pharmacia AB Lentille intraoculaire avec agrafes effilées à grande résistance
US5674284A (en) * 1993-07-28 1997-10-07 Iolab Corporation Intraocular lens with fracture resistant haptics
US5716403A (en) * 1995-12-06 1998-02-10 Alcon Laboratories, Inc. Single piece foldable intraocular lens
US6235055B1 (en) * 1999-08-09 2001-05-22 Milton W. Chu Intraocular lens having colored haptics for anterior/posterior orientation, and method for implanting it
US6241766B1 (en) * 1998-10-29 2001-06-05 Allergan Sales, Inc. Intraocular lenses made from polymeric compositions
BR112013024276A2 (pt) * 2011-03-24 2016-12-27 Kowa Co lente intraocular e método de fabricação da mesma

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0438043B1 (fr) * 1990-01-19 1996-05-29 Pharmacia AB Lentille intraoculaire avec agrafes effilées à grande résistance
US5282855A (en) * 1991-11-05 1994-02-01 Alcon Surgical, Inc. Vaulted intraocular lens having curved slanted haptic
US5405386A (en) * 1993-07-09 1995-04-11 Kabi Pharmacia Ophthalmics, Inc. Intraocular lens with improved cylindrical haptic
US5674284A (en) * 1993-07-28 1997-10-07 Iolab Corporation Intraocular lens with fracture resistant haptics
US5716403A (en) * 1995-12-06 1998-02-10 Alcon Laboratories, Inc. Single piece foldable intraocular lens
US6241766B1 (en) * 1998-10-29 2001-06-05 Allergan Sales, Inc. Intraocular lenses made from polymeric compositions
US6235055B1 (en) * 1999-08-09 2001-05-22 Milton W. Chu Intraocular lens having colored haptics for anterior/posterior orientation, and method for implanting it
BR112013024276A2 (pt) * 2011-03-24 2016-12-27 Kowa Co lente intraocular e método de fabricação da mesma

Also Published As

Publication number Publication date
BR202018002611U2 (pt) 2019-08-27

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