WO1995020919A1 - Disposable device for the phacofragmentation of rod granules - Google Patents

Disposable device for the phacofragmentation of rod granules Download PDF

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Publication number
WO1995020919A1
WO1995020919A1 PCT/ES1995/000016 ES9500016W WO9520919A1 WO 1995020919 A1 WO1995020919 A1 WO 1995020919A1 ES 9500016 W ES9500016 W ES 9500016W WO 9520919 A1 WO9520919 A1 WO 9520919A1
Authority
WO
WIPO (PCT)
Prior art keywords
loop
piston
thread
facofragmenter
sectioning
Prior art date
Application number
PCT/ES1995/000016
Other languages
Spanish (es)
French (fr)
Inventor
Pablo Antonio Galan Nieto
Original Assignee
Pablo Antonio Galan Nieto
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 Pablo Antonio Galan Nieto filed Critical Pablo Antonio Galan Nieto
Priority to AU16661/95A priority Critical patent/AU1666195A/en
Publication of WO1995020919A1 publication Critical patent/WO1995020919A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/32056—Surgical snare instruments
    • 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

Definitions

  • the present Utility Model refers to a disposable core facofragmenting device that provides the function to which it is intended, several advantages that will be reported later, apart from others inherent in its organization and constitution.
  • Keener loop technique is known, which requires expensive and fixed position instruments, which makes it difficult to perform the sectioning of the lens on some occasions.
  • the sectioning technique is first improved, by means of a loop of the variable or sliding size that once the lens is embraced produces the sectioning of the lens, only closing the loop itself with the instrument in any position, since the Displacement of the cutting "wire" is achieved by means of a rear plunger, an operation easier than that performed with existing techniques, and it is also possible to reopen the loop if necessary.
  • Figure 1 shows the core facofragmenting device with a single sleeve cannula, according to a longitudinal schematic section, in an open loop position.
  • Figure 2 corresponds to a view similar to the previous one, in which the facofragmenter adopts a closed loop position.
  • Figures 3 and 4 illustrate a facofragmenting device with double-jacketed cannula, according to similar views to the previous ones.
  • the disposable type core-fragmenting device comprises an outer cylinder -1-, similar to that of an insulin type syringe; a piston -2-, which moves inside the cylinder, which includes at its end the adequate means for the firm hold of the fragmenting wire -3-, and whose piston also creates a small aspiration; a sectioning wire -3-, with initial guide section -4-, of a rigid nature, which allows the opening and closing of the loop -5-, with ease; and a cannula -6-, of shirt, of simple shirt, of guide of the loop -5-, and of fixation of the fixed side of said loop, being able to be the mentioned double cannula cannula -7-, in order to allow irrigation if necessary, through connection -8-.
  • the displacement of the end -2a-, posterior of the piston -2- allows the loop -5- that forms the sectioning wire -3-, using the instrument in any position; likewise, the rotation of the piston - 2-, simultaneously creates a small aspiration.
  • the cannula -6-7- operates as an external guide of the loop -5-, allowing simultaneous irrigation through -8- in the case of a double jacket.
  • the longitudinal displacement of the piston -2-, in both directions, allows to reopen the loop -5-, if necessary.
  • the Model within its essentiality, can be put into practice in other embodiments that differ in detail from that indicated by way of example in the description, and which will also achieve the protection sought. It may, therefore, be constructed in any shape and size with the most appropriate materials, as all of this is included in the spirit of the claims.

Abstract

Disposable granule phacofragmentation instrument, applicable to the operation of cataract by the 'lasso' technique. The instrument is comprised of an external cylinder (1), a piston (2), an axial cannula (6) and a thread (3). The fragmentation thread (3) is attached at one of its extremities to the piston (2), and the opposite extremity is attached to the sleeve of the cannula (6), thereby forming a lasso (5). The displacement of the piston (2) varies the size of the lasso (5) for cutting off the lens.

Description

DISPOSITIVO FACOFRAGMENTADOR DE NÚCLEO DESECHABLE DESCRIPCIÓN DISPOSABLE NUCLEUS PHACOFRAGMENTING DEVICE DESCRIPTION
CAMPO DE LA INVENCIÓNFIELD OF THE INVENTION
El presente Modelo de Utilidad se refiere a un dispositivo facofragmentador de núcleo, desechable, que aporta a la función a la que se destina, varias ventajas que se consignarán más adelante, aparte de otras inherentes a su organización y constitución.The present Utility Model refers to a disposable core facofragmenting device that provides the function to which it is intended, several advantages that will be reported later, apart from others inherent in its organization and constitution.
ANTECEDENTES DE LA INVENCIÓNBACKGROUND OF THE INVENTION
Una de las técnicas quirúrgicas en oftalmología, conocidas en la actualidad, y aplicable en la operación de catarata con pequeña incisión,, es la facofragmentación. Dentro de las variantes existentes en ella, es conocida la técnica del lazo de Keener, la cual requiere un instrumental caro y de posición fija, que dificulta la realización del seccionamiento del cristalino en algunas ocasiones.One of the surgical techniques in ophthalmology, known today, and applicable in the operation of cataract with small incision, is the facofragmentation. Within the variants existing in it, the Keener loop technique is known, which requires expensive and fixed position instruments, which makes it difficult to perform the sectioning of the lens on some occasions.
SUMARIO DE LA INVENCIÓNSUMMARY OF THE INVENTION
El peticionario del presente registro de Modelo de Utilidad, merced a su experiencia en el campo que nos ocupa, ha concebido un dispositivo que resuelve los problemas antedichos que presenta la actual técnica.The petitioner of this Utility Model registry, thanks to his experience in the field at hand, has conceived a device that solves the aforementioned problems presented by the current technique.
Mediante el dispositivo facofragmentador objeto del presente Modelo de Utilidad, se mejora en primer lugar la técnica del seccionamiento, por medio de un lazo del tamaño variable o corredizo que una vez abrazado el cristalino nos produce el seccionamiento del mismo, únicamente cerrando el propio lazo con el instrumento en cualquier posición, ya que el desplazamiento del "hilo" cortante se consigue mediante un émbolo posterior, operación más fácil que la realizada con las técnicas existentes, siendo asimismo posible realizar una reapertura del lazo en caso necesario.By means of the facofragmenter device object of the present Utility Model, the sectioning technique is first improved, by means of a loop of the variable or sliding size that once the lens is embraced produces the sectioning of the lens, only closing the loop itself with the instrument in any position, since the Displacement of the cutting "wire" is achieved by means of a rear plunger, an operation easier than that performed with existing techniques, and it is also possible to reopen the loop if necessary.
En segundo lugar, se consiguen otras ventajas de orden práctico y económico, derivadas de la propia constitución del dispositivo, ya que al tratarse de un instrumento construido en material plástico, su fabricación requiere un coste reducido lo que permite desechar el instrumento una vez utilizado sin que su costo sea significativo.Secondly, other advantages of practical and economic order are obtained, derived from the constitution of the device itself, since since it is an instrument made of plastic material, its manufacture requires a reduced cost which allows the instrument to be discarded once used without That its cost is significant.
Al ser un instrumento desechable puede ser envasado de forma estéril de unidad en unidad y tener unidades disponibles de uso inmediato sin que se requiera una preparación del instrumental, reduciéndose con ello el tiempo necesario para la realización de la operación, con la ventaja que ello representa para el paciente. El dispositivo, según el presente Modelo de Utilidad, ofrece las ventajas que se han descrito anteriormente, además de otras que se deducirán fácilmente del ejemplo de realización de un facofragmentador de núcleo aplicable en la operación de catarata con pequeña incisión, que se describe más detalladamente a continuación para facilitar la comprensión de las caracteristicas expuestas precedentemente, dando a conocer al mismo tiempo diversos detalles y acompañándose a la presente memoria, a tal fin, unos dibujos en los que, tan sólo a título de ejemplo y no limitativo del alcance del presente Modelo, se representa un caso práctico del objeto del mismo. BREVE DESCRIPCIÓN DE LOS DIBUJABeing a disposable instrument, it can be sterile packed from unit to unit and have units available for immediate use without requiring instrument preparation, thereby reducing the time required for the operation, with the advantage that this represents for the patient The device, according to the present Utility Model, offers the advantages that have been described above, in addition to others that will be easily deduced from the example of realization of a core facofragmenter applicable in the cataract operation with small incision, which is described in more detail. then to facilitate the understanding of the characteristics set forth above, at the same time disclosing various details and accompanying to this report, to that end, some drawings in which, only by way of example and not limiting the scope of the present Model, a practical case of the object of the same is represented. BRIEF DESCRIPTION OF THE DRAWINGS
En los dibujos:In the drawings:
La figura 1, muestra el dispositivo facofragmentador de núcleo con cánula de camisa simple, según una sección esquemática longitudinal, en posición de lazo abierto.Figure 1 shows the core facofragmenting device with a single sleeve cannula, according to a longitudinal schematic section, in an open loop position.
La figura 2, corresponde a una vista similar a la anterior, en la que el facofragmentador adopta una posición de lazo cerrado.Figure 2 corresponds to a view similar to the previous one, in which the facofragmenter adopts a closed loop position.
Las figuras 3 y 4, ilustran un dispositivo facofragmentador con cánula de camisa doble, según sendas vistas similares a las anteriores.Figures 3 and 4 illustrate a facofragmenting device with double-jacketed cannula, according to similar views to the previous ones.
DESCRIPCIÓN DE UNA REALIZACIÓN SEGÚN LA INVENCIÓNDESCRIPTION OF AN EMBODIMENT ACCORDING TO THE INVENTION
Según lo representado en los dibujos, el dispositivo facofragmentador de núcleo, de tipo desechable, comprende un cilindro exterior -1-, similar al de una jeringuilla tipo insulina; un émbolo -2-, que se desplaza en el interior del cilindro, que incluye en su extremo los medios adecuados para la sujeción firme del hilo fragmentador -3-, y cuyo émbolo crea asimismo una pequeña aspiración; un hilo de seccionamiento -3-, con tramo guía inicial -4-, de naturaleza rígida, que permite la apertura y cierre del lazo -5-, con facilidad; y una cánula -6-, de camisa, de camisa simple, de guía del lazo -5-, y de sujeción del lado fijo de dicho lazo, pudiendo ser la mencionada cánula de doble camisa -7-, a efectos de permitir la irrigación en caso necesario, a través de la conexión -8-.As depicted in the drawings, the disposable type core-fragmenting device comprises an outer cylinder -1-, similar to that of an insulin type syringe; a piston -2-, which moves inside the cylinder, which includes at its end the adequate means for the firm hold of the fragmenting wire -3-, and whose piston also creates a small aspiration; a sectioning wire -3-, with initial guide section -4-, of a rigid nature, which allows the opening and closing of the loop -5-, with ease; and a cannula -6-, of shirt, of simple shirt, of guide of the loop -5-, and of fixation of the fixed side of said loop, being able to be the mentioned double cannula cannula -7-, in order to allow irrigation if necessary, through connection -8-.
Su funcionamiento es como sigue:Its operation is as follows:
El desplazamiento del extremo -2a-, posterior del émbolo -2-, permite accionar el lazo -5- que forma el hilo seccionador -3-, utilizando el instrumento en cualquier posición; asimismo, la rotación del émbolo - 2-, crea simultáneamente una pequeña aspiración. La cánula -6-7- opera como guía exterior del lazo -5-, permitiendo en el caso de doble camisa la irrigación simultánea a través de -8-. El desplazamiento longitudinal del émbolo -2-, en ambos sentidos, faculta realizar una reapertura del lazo -5-, en caso necesario. El Modelo, dentro de su esencialidad, puede ser llevado a la práctica en otras formas de realización que difieran en detalle de la indicada a título de ejemplo en la descripción, y a las cuales alcanzará igualmente la protección que se recaba. Podrá, pues, construirse en cualquier forma y tamaño con los materiales más adecuados, por quedar todo ello comprendido en el espíritu de las reivindicaciones. The displacement of the end -2a-, posterior of the piston -2-, allows the loop -5- that forms the sectioning wire -3-, using the instrument in any position; likewise, the rotation of the piston - 2-, simultaneously creates a small aspiration. The cannula -6-7- operates as an external guide of the loop -5-, allowing simultaneous irrigation through -8- in the case of a double jacket. The longitudinal displacement of the piston -2-, in both directions, allows to reopen the loop -5-, if necessary. The Model, within its essentiality, can be put into practice in other embodiments that differ in detail from that indicated by way of example in the description, and which will also achieve the protection sought. It may, therefore, be constructed in any shape and size with the most appropriate materials, as all of this is included in the spirit of the claims.

Claims

REIVINDICACIONES
1.- Dispositivo facofragmentador de núcleo, desechable, aplicable en la operación de catarata con pequeña incisión mediante la técnica del "lazo", lcaracterizado esencialmente por estar constituido por un conjunto formado por un cilindro exterior y un émbolo que desplaza en su interior, ambos de material moldeado, incluyendo el émbolo en su extremo opuesto al de maniobra, unos medios para la sujeción firme de un extremo del hilo fragmentador, en tanto que el extremo opuesto de dicho hilo se encuentra fijo en la camisa de una cánula axial y de guía del lazo de seccionamiento del cristalino, cuyo lazo es de tamaño variable o corredizo, en función de los movimientos del émbolo.1.- Disposable core facofragmenter device, applicable in cataract operation with small incision by means of the "loop" technique, essentially characterized by being constituted by a set formed by an outer cylinder and a piston that displaces inside, both of molded material, including the piston at its opposite end to the maneuver, means for the firm attachment of one end of the fragmenting thread, while the opposite end of said thread is fixed in the sleeve of an axial and guide cannula of the crystalline sectioning loop, whose loop is of variable or sliding size, depending on the movements of the plunger.
2.- Dispositivo facofragmentador de núcleo, desechable, según la reivindicación 1, caracterizado porque los medios de sujeción firme del hilo al cuerpo del émbolo, están constituidos por un tramo de guía rígida que se extiende en sentido axial a dicho émbolo.2. A disposable core facofragmenter device according to claim 1, characterized in that the means for firmly securing the thread to the piston body are constituted by a rigid guide section extending axially to said piston.
3.- Dispositivo facofragmentador de núcleo, desechable, según las reivindicaciones 1 y 2, caracterizado porque la camisa de guía del lazo y de sujeción del extremo fijo del mismo, presenta doble camisa que se mantiene comunicada con un conducto exterior al efecto, en orden a facultar la irrigación simultánea a la acción seccionadora del lazo. Todo ello según se describe, reivindica y grafía en la presente memoria que consta de 6 hojas foliadas, numeradas y mecanografiadas por una sola de sus caras y de 1 lámina de dibujos que la ilustran. 3. Disposable core facofragmenter device, according to claims 1 and 2, characterized in that the guide sleeve of the loop and fastening of the fixed end thereof, has a double jacket that remains connected to an external conduit for the purpose, in order to empower simultaneous irrigation to the sectioning action of the loop. All of this as described, claimed and spelled out herein consists of 6 foliated sheets, numbered and typed by only one of its faces and 1 sheet of drawings that illustrate it.
PCT/ES1995/000016 1994-02-03 1995-02-03 Disposable device for the phacofragmentation of rod granules WO1995020919A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU16661/95A AU1666195A (en) 1994-02-03 1995-02-03 Disposable device for the phacofragmentation of rod granules

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9400280U ES1027007Y (en) 1994-02-03 1994-02-03 NUCLEUS FACOFRAGMENTING DEVICE, DISPOSABLE.
ESU9400280 1994-02-03

Publications (1)

Publication Number Publication Date
WO1995020919A1 true WO1995020919A1 (en) 1995-08-10

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PCT/ES1995/000016 WO1995020919A1 (en) 1994-02-03 1995-02-03 Disposable device for the phacofragmentation of rod granules

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AU (1) AU1666195A (en)
ES (1) ES1027007Y (en)
WO (1) WO1995020919A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2623313C1 (en) * 2016-07-05 2017-06-23 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (ТГУ) Device for phacofragmentation
WO2019236016A1 (en) * 2018-06-08 2019-12-12 Erakguen Ethem Tansu Surgical lasso device designed for sutureless scleral intraocular lens fixation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856933A (en) * 1958-01-27 1958-10-21 Hildebrand Herbert Surgical snare
US4538611A (en) * 1983-06-13 1985-09-03 Kelman Charles D Surgical instrument and method of cutting a lens of an eye
WO1987006455A1 (en) * 1986-05-03 1987-11-05 J. & P. Coats, Limited Ophthalmic aspirating/irrigating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856933A (en) * 1958-01-27 1958-10-21 Hildebrand Herbert Surgical snare
US4538611A (en) * 1983-06-13 1985-09-03 Kelman Charles D Surgical instrument and method of cutting a lens of an eye
WO1987006455A1 (en) * 1986-05-03 1987-11-05 J. & P. Coats, Limited Ophthalmic aspirating/irrigating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2623313C1 (en) * 2016-07-05 2017-06-23 Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский государственный университет" (ТГУ) Device for phacofragmentation
WO2019236016A1 (en) * 2018-06-08 2019-12-12 Erakguen Ethem Tansu Surgical lasso device designed for sutureless scleral intraocular lens fixation

Also Published As

Publication number Publication date
ES1027007U (en) 1994-07-01
ES1027007Y (en) 1995-01-16
AU1666195A (en) 1995-08-21

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