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WO2024152092A1 - Simulateur chirurgical ophtalmologique - Google Patents

Simulateur chirurgical ophtalmologique Download PDF

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Publication number
WO2024152092A1
WO2024152092A1 PCT/BR2023/050075 BR2023050075W WO2024152092A1 WO 2024152092 A1 WO2024152092 A1 WO 2024152092A1 BR 2023050075 W BR2023050075 W BR 2023050075W WO 2024152092 A1 WO2024152092 A1 WO 2024152092A1
Authority
WO
WIPO (PCT)
Prior art keywords
eye
face
base
surgical simulator
ophthalmological surgical
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.)
Ceased
Application number
PCT/BR2023/050075
Other languages
English (en)
Portuguese (pt)
Inventor
Ramon FAZZOLO DE NADAI
Jussara PEREIRA QUINTANEIRO FAZZOLO
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2024152092A1 publication Critical patent/WO2024152092A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • G09B23/30—Anatomical models
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • G09B23/30—Anatomical models
    • G09B23/32—Anatomical models with moving parts
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
    • G09B23/30—Anatomical models
    • G09B23/34—Anatomical models with removable parts

Definitions

  • This utility model patent refers to an "OPHTHALMOLOGICAL SURGICAL SIMULATOR", more precisely to an apparatus that mimics and standardizes real surgical conditions, including living tissues, allowing the preparation and training of professionals without compromising risk to the patient and/or user. Furthermore, this technology allows the surgeon to have a better and faster learning curve in surgical techniques, consequently reducing possible errors and complications arising from these procedures.
  • the simulator is a tool that seeks to imitate a real situation, with the purpose of facilitating training and learning.
  • simulators In the field of medicine, especially for the training of surgical techniques, it is necessary to use physical equipment that aims to replicate the conditions to which the professional will be subjected.
  • simulators can also promote scenarios for simulating practices that detect problems in patient safety.
  • the Eyesi simulator for example, is generally used to train residents in phacoemulsification cataract surgery, prior to the start of surgical activities on real patients and eyes.
  • This device consists of a system with a binocular microscope mounted on a table with an artificial head and eye coupled to a computer, microscope and phacoemulsifier pedal, reproducing the surgical equipment.
  • the elasticity and resistance of the intraocular tissues used (cornea, iris, capsule, nucleus, cortex) have questionable similarities when compared with the behavior of human tissues.
  • BR 20 2020 006529 2 provides an artificial chamber kit for simulating cataract surgery, formed by an artificial chamber, which consists of a base with an extreme concave finish, which is threaded onto a tension ring, a laminar film , a silicone union tower and at least one artificial cornea.
  • US2005196741A1 refers to a device for simulating real conditions during eye surgery.
  • the device includes a prosthetic head that includes an eye socket coupled to a fluid line adapted to create negative pressure or vacuum in the eye socket.
  • An eye for practicing surgical techniques can be placed in the socket and negative pressure used to hold the eye in the socket in a way that feels analogous to the sensation of an eye to a surgeon operating on a living human being.
  • US2009111081A1 discloses an ophthalmic surgery simulation device for realistic practice and training of techniques and procedures surgical.
  • the device includes a base, a bracket extending upwardly from the base, a cup pivotally mounted to the bracket, and a face mask.
  • a practice eye is retained in the cup by suction.
  • the position of the cup relative to the eye sockets in the mask is adjustable in a preferred embodiment.
  • US2020118466A1 presents an eye model that allows the simulation of surgical procedures involving the anterior and posterior segments of the eye.
  • the model includes a housing that supports fixation of an anterior segment.
  • the anterior segment has a lens capsule that is movably suspended by a peripheral zonule.
  • An anterior chamber is formed between the cornea and the lens capsule.
  • a posterior segment with a posterior cavity is formed in the shell and can be filled through a port formed in the shell. The posterior cavity is limited anteriorly by the lens capsule, as in the eye.
  • Face base support for the face and training eyes. Its tray collects the liquids used, generating organization in the space. The magnet system promotes excellent fixation of the face and eyes.
  • Face mimics a human face, handling surgical instruments is a challenge due to the presence of the nose, orbital rim, forehead. Therefore, the importance of rigid structures that simulate this challenge.
  • Suture eye it is a structure shaped like a human eye, covered with a silicone blanket, allowing training in dissection, various sutures, flaps and conjunctiva transplantation.
  • Eye for capsulorhexis consists of a base and a lid joined by a hinge. At the base, there is a small silicone block that simulates the support of the lens. In the lid, a horizontal slit allows the "capsule tape” to pass through. It will allow training of the capsulorhexis, pullback, snail enlargement.
  • the "capsule tape” system with adhesive allows quick exchange and the performance of dozens of capsulorhexis in a very short time.
  • Figure 1 refers to a schematic representation, in isometric view, of the base of the face, identifying the element: cone-shaped eye supports (SO).
  • SO cone-shaped eye supports
  • Figure 2 refers to a schematic representation, in isometric view, of the face, identifying the element: metal sheet for attraction with the magnet (CM).
  • CM magnet
  • Figure 3 shows another schematic representation, in isometric view, of the face, now with a silicone blanket (MS).
  • Figure 4 shows the direction of joining of the elements of the silicone blanket (MS), face and base of the face.
  • Figure 5 reveals a top view of the suture eye, identifying the elements: sclera (ES) and cornea (CO).
  • Figure 6 reveals an isometric view of the suture eye, identifying the elements: sclera (ES), cornea (CO), magnet for fixing the base (IB) and stabilizing surface (SE).
  • ES sclera
  • CO cornea
  • IB magnet for fixing the base
  • SE stabilizing surface
  • Figure 7 reveals a representation of the assembly of the set: Suture eye.
  • Figure 8 shows an isometric view of the base of the eye for capsulorhexis and the silicone pad (AS), in addition to the elements: groove for hinge fixation (CF), rod for pad fixation (HF), magnet for closing the lid ( IT) and base of the eye for capsulorhexis (BO).
  • CF groove for hinge fixation
  • HF rod for pad fixation
  • IT magnet for closing the lid
  • BO base of the eye for capsulorhexis
  • Figure 9 shows an isometric view of the capsulorhexis eye cover, identifying the elements: rectangular tunnel for passage of plastic film (TR), capsulorhexis eye cover (TO) and central cylindrical opening (AC).
  • TR plastic film
  • TO capsulorhexis eye cover
  • AC central cylindrical opening
  • Figure 10 shows the assembly, in isometric view, of the capsulorhexis eye apparatus, in the open position, identifying the elements: rectangular tunnel for passage of plastic film (TR), capsulorhexis eye cover (TO), central cylindrical opening ( AC), silicone pad (AS), magnet for closing the lid (IT), eye base for capsulorhexis (BO) and hinge (DO).
  • TR plastic film
  • TO capsulorhexis eye cover
  • AC central cylindrical opening
  • AS silicone pad
  • I magnet for closing the lid
  • BO eye base for capsulorhexis
  • DO hinge
  • Figure 11 shows the assembly with a strip of plastic tape (TP), in isometric view, of the eye apparatus for capsulorhexis, identifying the central cylindrical opening (AC).
  • Figure 12 shows the top view of the plastic film strip (TP) for capsulorhexis.
  • Figure 13 shows a side view of the base of the eye for general procedures, identifying the elements: lens cavity (CC), corneal fitting ring (AEC) and cylindrical base of variable height (BCV).
  • CC lens cavity
  • AEC corneal fitting ring
  • BCV cylindrical base of variable height
  • Figure 14 shows an isometric view of the iris simulator.
  • Figure 15 shows a cross-section of the iris simulator showing the internal details.
  • Figure 16 refers to an isometric view of the cornea simulator, identifying the regions: cornea (CO) and sclera (ES).
  • Figure 17 shows a cross-section of the cornea simulator, identifying the regions: cornea (CO) and sclera (ES) and cava for fitting to the base (CEB).
  • Figure 18 is a representation of the assembly of the set: "Eye for general training", identifying the training regions referring to the structures: cornea (CO), iris (IR) and cataract (CAT), in addition to the base (BCV) and a plastic strip (TP).
  • CO cornea
  • IR iris
  • CAT cataract
  • BCV base
  • TP plastic strip
  • OPHTHALMOLOGICAL SURGICAL SIMULATOR covers the following primary components: base of the face, face, suture eye, eye for capsulorrhexis and eye for general training.
  • the base for the face has a plastic structure and vaccum forming molding, which generates great savings for the project.
  • the lower surface is covered with a rubber blanket to provide stability and prevent movement in relation to the bench during training.
  • the upper face has raised edges around its entire perimeter, generating a tray shape at the base. This prevents any liquid from spilling into the training environment. It can be easily emptied when fully filled.
  • SO cone trunk
  • magnets attached to the inner face of the cone frustum promote adequate fixation.
  • four magnets are placed on the upper face of the base. This ensures that it is positioned in the correct location and does not move during training.
  • the second constituent element of the simulator is the face. This has a plastic structure and molding also in vaccum forming, helping to reduce the project's low production cost.
  • the aesthetic similarity with a human face is a differentiator of the project, as it generates deep immersion and seriousness in the training context. This is essential for the doctor to feel like they are in a realistic situation, improving engagement and, consequently, results.
  • Bone, cartilaginous and skin protuberances are represented from the height of the maxillary bone to half the frontal bone.
  • a silicone blanket (MS) with a high similarity to human skin is placed on the face, generating reliability in the surgical simulation. With this, it is possible to train with the same difficulties and challenges that the human face presents.
  • the silicone blanket enables training in eyelid sutures, flaps and skin transplants.
  • Small metal sheets CM were glued to its back face, in locations corresponding to the magnets at the base of the face. This ensures that it is positioned in the correct location and does not move during training.
  • the third constituent element is the suture eye. This component is manufactured in a metal or resin structure with dimensions similar to the human eye that will be fixed to the top of the frustum cone (SO) present at the base for the face. Adhesion occurs through a magnet attached to it.
  • a small cylindrical rod originates in order to provide support for a silicone "cushion" (AS).
  • AS silicone "cushion”
  • the purpose of this is to serve as support for the plastic strip (TP) used in the simulation.
  • TP plastic strip
  • the rectangular tunnel (TR) aims to allow the passage of the plastic strip (TP) throughout the lid.
  • Cylindrical opening (AC) will give access to the film plastic at the top.
  • the edges of the cylindrical opening (AC) press the film against the silicone "cushion” (AS), stretching it and keeping it uniform, free of roughness.
  • the user upon completing a capsulorhexis, opens the eye lid, pulls the film, closes the lid and can now perform another capsulorhexis. This mechanism is extremely simple and agile, which provides a high volume of training in a reduced time.
  • a 2.5 micrometer plastic film (TP) is used and, as it is extremely thin and delicate, it is very difficult to handle.
  • TP 2.5 micrometer plastic film
  • a vinyl adhesive is joined to the film (TP) to form a set that is simple and easy to use.
  • Ten small openings are made in the adhesive, forming a kind of frame for the film.
  • the capsulorhexis procedure is extremely similar to the in vivo procedure.
  • One end of the strip (TP) is cut in a configuration that resembles the tip of a torpedo. This makes it easier and less time spent to pass the strip through the eye's rectangular tunnel for capsulorrhexis.
  • the general training eye is capable of simulating all surgical steps of cataract surgery, in addition to iris suturing, iridodialysis suturing, secondary implantation and corneal transplantation. Its measurements respect all the measurements of a human eye and therefore preserve the surgical characteristics such as phacodynamics, possibility of damage to ocular structures and tissue delicacy.
  • the base is made of metal or resin and is adhered to the base of the face by the magnet. Its lower portion is cylindrical and can be manufactured at variable heights to make training easier or more difficult (simulates more or less deep orbits). Additionally, this format helps with stability.
  • the upper portion is made up of a ring-shaped protuberance (AEC) that serves as a fitting for the cornea (CO). At the top, a small cavity houses the lens (CC).
  • the cataract has measurements and shape that simulate an average cataract in the 60-year-old population. It is made with a collagen-based compound.
  • the film that simulates the lens capsule (TP) is arranged in a disc shape and is 2.5 micrometers thick. This generates a consistency, texture and tear resistance very similar to the human capsular bag.
  • the iris is made of silicone and has a circular shape, so that it simulates an iris in mydriasis. Furthermore, the inferiorly extended edges are responsible for grasping and positioning the lens and its capsule.
  • the cornea is produced in silicone and is responsible for sealing the entire complex described previously. In this way, the incisions are made very similar to the human eye.
  • the apparatus presented here has high similarity with human ocular tissues and high training efficiency, these being the main advantages in using such an invention. Furthermore, with low effort, the equipment allows the ophthalmologist to practice the same step/procedure dozens of times.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • Algebra (AREA)
  • Computational Mathematics (AREA)
  • Medical Informatics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Educational Administration (AREA)
  • Medicinal Chemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Instructional Devices (AREA)

Abstract

Le présente brevet de modèle d'utilité concerne un « simulateur chirurgical ophtalmologique », plus particulièrement un appareil qui reproduit et standardise les conditions chirurgicales réelles, y compris les tissus vivants, permettant la préparation et la formation de professionnels sans mettre en danger le patient et/ou l'utilisateur. En outre, cette technologie permet que le chirurgien dispose d'une courbe d'apprentissage améliorée et plus rapide dans les techniques chirurgicales, d'où une réduction des éventuelles erreurs et complications résultant de ces procédures. Les composants primaires utilisés dans l'appareil sont : base de la face, face, œillet de suture, œillet pour capsulorhexis et œillet pour entraînement général.
PCT/BR2023/050075 2023-01-17 2023-03-06 Simulateur chirurgical ophtalmologique Ceased WO2024152092A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR202023000871U BR202023000871U2 (pt) 2023-01-17 2023-01-17 Simulador cirúrgico oftalmológico
BR2020230008718 2023-01-17

Publications (1)

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WO2024152092A1 true WO2024152092A1 (fr) 2024-07-25

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PCT/BR2023/050075 Ceased WO2024152092A1 (fr) 2023-01-17 2023-03-06 Simulateur chirurgical ophtalmologique

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WO (1) WO2024152092A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118553147A (zh) * 2024-07-26 2024-08-27 南昌虚拟现实研究院股份有限公司 一种撕囊模拟装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865552A (en) * 1987-02-13 1989-09-12 William F. Maloney Ophthalmologic phantom system
US20160098944A1 (en) * 2014-10-06 2016-04-07 Universal Vision Biotechnology Co., Ltd. Eye surgery training simulator
US9336692B1 (en) * 2012-08-06 2016-05-10 Stuart Stoll Surgical training eye apparatus
US10410543B2 (en) * 2017-06-01 2019-09-10 The United States of America as Rep. by the Secretary of the Navy Ophthalmic training simulator
US11127314B2 (en) * 2019-05-22 2021-09-21 Bioniko Consulting Llc Simulating head anatomy for eye surgery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865552A (en) * 1987-02-13 1989-09-12 William F. Maloney Ophthalmologic phantom system
US9336692B1 (en) * 2012-08-06 2016-05-10 Stuart Stoll Surgical training eye apparatus
US20160098944A1 (en) * 2014-10-06 2016-04-07 Universal Vision Biotechnology Co., Ltd. Eye surgery training simulator
US10410543B2 (en) * 2017-06-01 2019-09-10 The United States of America as Rep. by the Secretary of the Navy Ophthalmic training simulator
US11127314B2 (en) * 2019-05-22 2021-09-21 Bioniko Consulting Llc Simulating head anatomy for eye surgery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118553147A (zh) * 2024-07-26 2024-08-27 南昌虚拟现实研究院股份有限公司 一种撕囊模拟装置

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