# US 2019/0318661 A1 · Simulating eye surgery

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- Number: US 2019/0318661 A1
- Document ID: US20190318661A1
- Status: Published application
- Kind: A1
- Application number: 16/456,120
- Filed: 2019-06-28
- Published: 2019-10-17
- Earliest claimed: 2017-08-14
- Assignees: Bioniko Consulting, LLC
- Applicants: Bioniko Consulting LLC
- Inventors: Andres BERNAL
- Web page: https://patentgrep.com/patent/US20190318661A1

## CPC

- G09B 23/30: Anatomical models {(G09B23/281 - G09B23/288 take precedence)}
- A61F 9/00736: {Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments (A61F9/008 takes precedence)}
- G16H 40/40: for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
- G16H 50/50: for simulation or modelling of medical disorders
- A61F 2009/00887: {Cataract}
- G09B 23/22: for optics
- G09B: EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS (devices for psychotechnics or for testing reaction times A61B5/16; games, sports, amusements A63; projectors, projector screens G03B)
- 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 (dental prosthetics A61C)
- G16H: HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA

## Abstract

A model for simulating surgery upon the eye has a posterior and an anterior segment. The posterior segment includes structures corresponding to those of the eye, including a hollow globe and an image of the fundus positioned upon an interior, posterior portion of the globe. A mating portion is peripherally formed about an open end of the globe. The anterior segment also includes structures corresponding to those of the eye, including a translucent lens, and another mating portion peripherally formed about a posterior portion of the anterior segment. The mating portions of the posterior and anterior segments releasably connect the posterior and anterior segments. A vitreous substitute material can be added into the posterior segment and is sealed within when the anterior segment is attached.

## Claims

### Claim 1

A device for simulating surgery upon the eye, comprising:
a posterior segment including:
structures corresponding to those of the eye, including a hollow globe and an image of the fundus positioned upon an interior, posterior portion of the globe; and
a first mating portion peripherally formed about an open end of the globe; and
an anterior segment including:
structures corresponding to those of the eye, including a translucent lens; and
a second mating portion peripherally formed about a posterior portion of the anterior segment, the second mating portion mateable with the first mating portion to releasably connect the posterior and anterior segments.

### Claim 2 (depends on 1)

The device of claim 1, wherein the first and second mating portions are dovetail portions.

### Claim 3 (depends on 1)

The device of claim 1, further including a plurality of rectus muscles each attached to the globe at attachment points.

### Claim 4 (depends on 1)

The device of claim 1, the device having an appearance corresponding to the anatomy of a particular species of living organism, the translucent lens having optical properties corresponding to that of the living organism.

### Claim 5 (depends on 1)

The device of claim 1, the first and second mating portions forming a liquid tight seal operative to retain a fluid within the posterior segment and the anterior segment when the first and second portions are mated.

### Claim 6 (depends on 1)

The device of claim 1, wherein the globe is at least partially optically transparent.

### Claim 7 (depends on 1)

The device of claim 1, wherein the lens is releasably retained within the anterior segment.

### Claim 8 (depends on 1)

The device of claim 1, further including a removable coating that is applyable to an interior of the posterior segment.

### Claim 9 (depends on 8)

The device of claim 8, wherein the coating is a liquid which is applyable to the image of the fundus to form a film that will adhere to the fundus when dried, and after drying is peelable from the fundus.

### Claim 10 (depends on 9)

The device of claim 9, wherein the coating includes a substrate and a solubilizing agent.

### Claim 11 (depends on 9)

The device of claim 9, wherein the solubilizing agent is water.

### Claim 12 (depends on 9)

The device of claim 9, wherein air is blown onto the coating after it has been applied to the fundus.

### Claim 13 (depends on 1)

The device of claim 1, the device having an appearance corresponding to the anatomy of a particular species of living organism, the anterior segment including a portion corresponding to the pars plana, the pars plana having a hardness corresponding to that of the living organism, whereby the pars plana is pierceable with a surgical instrument.

### Claim 14

A method of enabling simulation of therapeutic procedures performed upon the eye, comprising:
providing a posterior segment including:
structures corresponding to those of the eye, including a hollow globe and an image of the fundus positioned upon an interior, posterior portion of the globe; and
a first mating portion peripherally formed about an open end of the globe;
providing an anterior segment including:
structures corresponding to those of the eye, including a translucent lens; and
a second mating portion peripherally formed about a posterior portion of the anterior segment, the second mating portion mateable with the first mating portion to releasably connect the posterior and anterior segments; and
providing a coating which is applyable to the fundus to form a film that will adhere to the fundus when dried, and after drying is peelable from the fundus in one or more pieces.

### Claim 15 (depends on 14)

The method of claim 14, wherein the coating provided includes a substrate and a volatile solubilizing agent.

### Claim 16 (depends on 14)

The method of claim 14, further including providing instructions for applying the coating to the posterior segment.

### Claim 17 (depends on 15)

The method of claim 15, wherein the substrate is selected from a cellulosic and a polymeric material.

### Claim 18 (depends on 14)

The method of claim 14, further including providing a vitreous substitute material to be placed inside the posterior segment.

### Claim 19 (depends on 14)

The method of claim 14, further including providing instructions for inserting a vitreous substitute material into the posterior segment.

### Claim 20

A method of simulating a surgical procedure upon the eye, comprising:
separating an anterior segment of a simulated eye from a posterior segment of a simulated eye, the posterior segment including:
structures corresponding to those of the eye, including a hollow globe and an image of the fundus positioned upon an interior, posterior portion of the globe; and
a first mating portion peripherally formed about an open end of the globe and having the form of one of an annular groove and annular flange;
the anterior segment including:
structures corresponding to those of the eye, including a translucent lens;
a second mating portion peripherally formed about a posterior portion of the anterior segment, the second mating portion mateable with the first mating portion to releasably connect the posterior and anterior segments;
inserting a vitreous substitute material into the posterior segment, the substitute material resembling the viscosity and appearance of vitreous humor of a natural eye; and
simulating a surgical procedure including removal of vitreous substitute from the eye with the posterior and anterior segments assembled together.

### Claim 21 (depends on 21)

The method of claim 21, further including, prior to inserting a vitreous substitute, applying a coating to a portion of the image of the fundus; and
simulating a surgical procedure including manipulating the coating with the posterior and anterior segments assembled together.

### Claim 22 (depends on 20)

The method of claim 20, further including providing a viscoelastic substance to be deposited between the first and second mating portions, the substance operative to create a temporary liquid-tight seal.
