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WO2019236016A1 - Surgical lasso device designed for sutureless scleral intraocular lens fixation - Google Patents

Surgical lasso device designed for sutureless scleral intraocular lens fixation Download PDF

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Publication number
WO2019236016A1
WO2019236016A1 PCT/TR2018/000057 TR2018000057W WO2019236016A1 WO 2019236016 A1 WO2019236016 A1 WO 2019236016A1 TR 2018000057 W TR2018000057 W TR 2018000057W WO 2019236016 A1 WO2019236016 A1 WO 2019236016A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
lasso
lens
surgical
device designed
Prior art date
Application number
PCT/TR2018/000057
Other languages
French (fr)
Inventor
Ethem Tansu ERAKGÜN
Original Assignee
Erakguen Ethem Tansu
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 Erakguen Ethem Tansu filed Critical Erakguen Ethem Tansu
Priority to PCT/TR2018/000057 priority Critical patent/WO2019236016A1/en
Publication of WO2019236016A1 publication Critical patent/WO2019236016A1/en

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
    • A61F2/167—Instruments for inserting intraocular lenses into the eye with pushable plungers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
    • A61B2017/00358—Snares for grasping
    • 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
    • A61F2/1602—Corrective lenses for use in addition to the natural lenses of the eyes or for pseudo-phakic eyes

Definitions

  • the invention relates to a surgical lasso device designed for sutureless scleral intraocular lens fixation.
  • the intraocular lens implantation may be performed via various methods. These may include the placement of the lens in the anterior chamber, iris fixation lenses, sutured lens placement in the sclera or iris and the sutureless lens fixation to the sclera via scleral tunnel.
  • One of the known methods for the sutureless lens fixation to the sclera includes entering the eye from the sclera with a needle in the form of a tunnel, introducing the lens haptic into said needle and externalizing and fixating the same.
  • Another method involves using a trocar cannula and grasping and externalizing the lens haptic via this trocar with the help of a microforceps.
  • the object of the invention is to achieve the sutureless scleral intraocular lens fixation without introducing the lens haptic into the needle and without using a trocar when performing the sutureless lens fixation to the sclera via scleraf tunnel for the intraocular lens implantation for the eyes with no posterior capsular support.
  • the lens haptic is externalized and placed in the sclera in a sutureless manner by the use of a lasso, which is located at the end of a pointed needle, is able to enter and exit via a mechanism and is thus able to grasp the haptic of the intraocular lens.
  • the surgical lasso device designed for the sutureless scleral intraocular lens fixation comprises a main body and a needle at the end of the main body, said needle having a thin, pointed or blunt tip, being straight or curved or angled and having a diameter of approximately 0.2-0.6 mm.
  • a material made from a substance with shape memory (polyol, nitinol or a similar substance), said material reciprocating as linked to the mechanism in the main body and having an annular lasso at the end thereof.
  • the lasso at the end of the needle protrudes from the tip of the needle. While the lasso is in a state positioned at the tip of the needle, it is passed around the lens haptic and clamped, the trigger mechanism in the main body is moved backwards, and the lasso is pulled inside from the tip of the needle together with the lens and is moved outside the sclera along with the needle. While outside, the lasso is loosened to release the lens haptic.
  • Figure-1 A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation in a state with the lasso being located inside same
  • Figure-2 A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation in a state with the lasso being located outside same
  • Figure-3 A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance the lasso thereof grasps the lens
  • Figure-4 A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance it clamps the lens and pulls the same into the tube from the needle tip
  • Figure-5 A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance it takes the lens into the tube Reference Numerals to Aid in the Description of the Invention
  • the invention is a surgical lasso device designed for the sutureless scleral intraocular lens fixation comprising a cylindrical main body (1), a straight or curved needle (2) with a thickness of 0.2-0.6 mm having a pointed or blunt tip, a thin material (3) with shape memory having a cylindrical structure made from polyol, nitinol or a similar substance, a trigger mechanism (4), an annular lasso (5) and a button (6) ( Figure-1).
  • the thin material (3) moves forward inside the needle (2) and thus the lasso (5) at the end of the same also moves forward to protrude from the tip of the needle (2) ( Figure-1).
  • the button (6) is moved backwards, the thin material (3) moves backwards inside the needle (2) and thus the lasso (5) at the end of the same also moves backwards to enter via the tip of the needle (2) ( Figure-2).
  • the eye is entered via the needle (2), the lasso (5) at the end of the thin material (3) is passed around the haptic of the lens (7) and is clamped ( Figure-3, Figure-4).
  • the button (6) is moved backwards, thus the lasso (5), together with the lens clamped in the same, is retracted into the needle (2) ( Figure-5) and is moved outside the sclera along with the needle (2). While outside, the lasso (5) of the thin material (3) is loosened to release the haptic of the lens (7).

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

The invention is a surgical lasso device designed for the sutureless scleral intraocular lens fixation comprising a cylindrical main body (1), a straight or curved cylindrical needle (2) with a thickness of approximately 0.2-0.6 mm having a pointed or blunt tip, a thin material (3) with shape memory made from polyol, nitinol or a similar substance, a trigger mechanism (4), an annular lasso (5) and a button (6). During the operation, the eye is entered via the needle (2) and the lasso (5) at the end of the thin material (3) is passed around the haptic of the lens (7) and is clamped. Then the button (6) is moved backwards, thus the lasso (5), together with the lens clamped in the same, is retracted into the needle (2) and is moved outside the sclera along with the needle (2). While outside, the lasso (5) of the thin material (3) is loosened to release the haptic of the lens (7).

Description

SURGICAL LASSO DEVICE DESIGNED FOR SUTURELESS SCLERAL
INTRAOCULAR LENS FIXATION
Technical Field
The invention relates to a surgical lasso device designed for sutureless scleral intraocular lens fixation.
Description of the Art
For the eyes with no posterior capsular support, the intraocular lens implantation may be performed via various methods. These may include the placement of the lens in the anterior chamber, iris fixation lenses, sutured lens placement in the sclera or iris and the sutureless lens fixation to the sclera via scleral tunnel.
One of the known methods for the sutureless lens fixation to the sclera includes entering the eye from the sclera with a needle in the form of a tunnel, introducing the lens haptic into said needle and externalizing and fixating the same. Another method involves using a trocar cannula and grasping and externalizing the lens haptic via this trocar with the help of a microforceps.
Object of the Invention
The object of the invention is to achieve the sutureless scleral intraocular lens fixation without introducing the lens haptic into the needle and without using a trocar when performing the sutureless lens fixation to the sclera via scleraf tunnel for the intraocular lens implantation for the eyes with no posterior capsular support.
Brief Description of the Invention
According to the method described herein, the lens haptic is externalized and placed in the sclera in a sutureless manner by the use of a lasso, which is located at the end of a pointed needle, is able to enter and exit via a mechanism and is thus able to grasp the haptic of the intraocular lens.
The surgical lasso device designed for the sutureless scleral intraocular lens fixation comprises a main body and a needle at the end of the main body, said needle having a thin, pointed or blunt tip, being straight or curved or angled and having a diameter of approximately 0.2-0.6 mm. Inside the needle, there is present a material made from a substance with shape memory (polyol, nitinol or a similar substance), said material reciprocating as linked to the mechanism in the main body and having an annular lasso at the end thereof.
As the trigger mechanism in the main body moves forward, the lasso at the end of the needle protrudes from the tip of the needle. While the lasso is in a state positioned at the tip of the needle, it is passed around the lens haptic and clamped, the trigger mechanism in the main body is moved backwards, and the lasso is pulled inside from the tip of the needle together with the lens and is moved outside the sclera along with the needle. While outside, the lasso is loosened to release the lens haptic.
The Figures to Aid in the Description of the Invention:
The surgical lasso device designed for the sutureless scleral intraocular lens fixation according to the invention is described in more detail with the help of the following drawings provided by way of example, in which:
Figure-1 : A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation in a state with the lasso being located inside same
Figure-2: A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation in a state with the lasso being located outside same
Figure-3: A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance the lasso thereof grasps the lens
Figure-4: A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance it clamps the lens and pulls the same into the tube from the needle tip
Figure-5: A view of the surgical lasso device designed for the sutureless scleral intraocular lens fixation at the instance it takes the lens into the tube Reference Numerals to Aid in the Description of the Invention
1- Main body
2- Needle
3- Thin material
4- Trigger mechanism (spring, etc.)
5- Lasso
6- Button
7- Lens
Description of the Invention
The invention is a surgical lasso device designed for the sutureless scleral intraocular lens fixation comprising a cylindrical main body (1), a straight or curved needle (2) with a thickness of 0.2-0.6 mm having a pointed or blunt tip, a thin material (3) with shape memory having a cylindrical structure made from polyol, nitinol or a similar substance, a trigger mechanism (4), an annular lasso (5) and a button (6) (Figure-1).
Inside said needle (2), there is present a very thin materia! (3) with shape memory made from polyol, nitinol or a similar substance, said material reciprocating as linked to the trigger mechanism (4) in the main body (1), wherein there is present an annular lasso (5) at the end of said material (3) (Figure-1 , Figure-2).
When the trigger mechanism (4) in the main body (1 ) is moved forward via the button (6) to which it is connected, the thin material (3) moves forward inside the needle (2) and thus the lasso (5) at the end of the same also moves forward to protrude from the tip of the needle (2) (Figure-1). When the button (6) is moved backwards, the thin material (3) moves backwards inside the needle (2) and thus the lasso (5) at the end of the same also moves backwards to enter via the tip of the needle (2) (Figure-2). During the operation, the eye is entered via the needle (2), the lasso (5) at the end of the thin material (3) is passed around the haptic of the lens (7) and is clamped (Figure-3, Figure-4). Then the button (6) is moved backwards, thus the lasso (5), together with the lens clamped in the same, is retracted into the needle (2) (Figure-5) and is moved outside the sclera along with the needle (2). While outside, the lasso (5) of the thin material (3) is loosened to release the haptic of the lens (7).

Claims

1. Surgical lasso device designed for the sutureless scleral intraocular lens fixation characterized in that it comprises a cylindrical main body (1), a straight or curved cylindrical needle (2) with a thickness of approximately 0.2-0.6 mm having a pointed or blunt tip, a thin material (3) with shape memory made from polyol, nitinol or a similar substance, a trigger mechanism (4), an annular lasso (5) and a button (6).
2. Surgical lasso device designed for the sutureless scleral intraocular lens fixation according to Claim 1 characterized in that it comprises a trigger mechanism (4) connected to the button (6) on said cylindrical main body (1) and a thin material (3) with shape memory (made from polyol, nitinol or a similar substance) reciprocating inside the main body (1) and inside the needle (2) as linked to said trigger mechanism (4).
3. Surgical lasso device designed for the sutureless scleral intraocular lens fixation according to Claim 1 or 2 characterized in that it comprises an annular lasso (5), which is located at the end of the thin material (3) that moves forward upon the trigger mechanism (4) being moved forward via the button (6) on the main body (1) and which moves forward to protrude from the tip of the needle (2).
4. Surgical lasso device designed for the sutureless scleral intraocular lens fixation according to the preceding claims characterized in that it comprises a straight or curved cylindrical needle (2) positioned at the end of said main body (1 ), said needle having a thickness of approximately 0.2-0.6 mm and having a pointed or blunt tip, and it further comprises a thin material (3) with shape memory that reciprocates inside said needle (2) and it further comprises an annular lasso (5) at the end of said thin material (3), said lasso moving inwards-outwards from the interior of the needle (2).
5. Surgical lasso device designed for the sutureless scleral intraocular lens fixation according to the preceding claims characterized in that it comprises a needle (2) introduced to the eye in order to lift the haptic of the lens in the eye and an annular lasso (5), which is intended to protrude from said needle (2) and to be passed around the lens haptic to clamp the lens and pull the lens into the needle (2), thereby moving the lens outside the sclera along with the needle (2) without using any other instrument.
PCT/TR2018/000057 2018-06-08 2018-06-08 Surgical lasso device designed for sutureless scleral intraocular lens fixation WO2019236016A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/TR2018/000057 WO2019236016A1 (en) 2018-06-08 2018-06-08 Surgical lasso device designed for sutureless scleral intraocular lens fixation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/TR2018/000057 WO2019236016A1 (en) 2018-06-08 2018-06-08 Surgical lasso device designed for sutureless scleral intraocular lens fixation

Publications (1)

Publication Number Publication Date
WO2019236016A1 true WO2019236016A1 (en) 2019-12-12

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020919A1 (en) * 1994-02-03 1995-08-10 Pablo Antonio Galan Nieto Disposable device for the phacofragmentation of rod granules
WO2014035862A1 (en) * 2012-08-28 2014-03-06 The Regents Of The University Of Colorado, A Body Corporate Ophthalmic surgical device with adjustable filament and method of use
US20160074220A1 (en) * 2014-09-17 2016-03-17 Iantech, Inc. Devices and methods for the removal of lenticular tissue
WO2017143272A2 (en) * 2016-02-19 2017-08-24 New World Medical, Inc. Apparatus and method for cataract extraction

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995020919A1 (en) * 1994-02-03 1995-08-10 Pablo Antonio Galan Nieto Disposable device for the phacofragmentation of rod granules
WO2014035862A1 (en) * 2012-08-28 2014-03-06 The Regents Of The University Of Colorado, A Body Corporate Ophthalmic surgical device with adjustable filament and method of use
US20160074220A1 (en) * 2014-09-17 2016-03-17 Iantech, Inc. Devices and methods for the removal of lenticular tissue
WO2017143272A2 (en) * 2016-02-19 2017-08-24 New World Medical, Inc. Apparatus and method for cataract extraction

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