SIMULATED EYEBALL, DEVICE FOR TRAINING IN OPHTHALMIC SURGERY, AND METHOD FOR TRAINING IN OPHTHALMIC SURGERY

• US 20200135056A1
• Filed: 11/30/2017
• Published: 04/30/2020
• Est. Priority Date: 11/30/2017
• Status: Active Grant

• Current Assignee: Mitsui Chemicals Incorporated (Mitsui Chemicals)
• Original Assignee: Nagoya University
• Inventors: OMATA, Seiji, ARAI, Fumihito
• Granted Patent: US 11,475,797 B2
• Time in Patent Office: Days
• CPC Class Codes: G09B 19/24 Use of tools
• CPC Class Codes: G09B 23/28 for medicine
• CPC Class Codes: G09B 23/30 Anatomical models G09B23/281 - G09B23/288 take precedence

Abstract

A simulated eyeball for training in ophthalmic surgery includes a simulated sclera region that constitutes a simulated sclera, and a conductor layer that is formed on a side of the simulated sclera region that is on an interior of the simulated eyeball, the conductor layer forming a simulated choroid region.

Claims

1. A simulated eyeball for training in ophthalmic surgery, the simulated eyeball comprising:

a simulated sclera region that constitutes a simulated sclera and is formed from a non-electroconductive material; and

a conductor layer formed on a side of the simulated sclera region that is on an interior of the simulated eyeball;

the conductor layer forming a simulated choroid region.

2. The simulated eyeball of claim 1, wherein:

the simulated eyeball includes a simulated cornea region that constitutes a simulated cornea,

the conductor layer includes an extension region that extends away from the simulated sclera into the simulated eyeball, at a position near a boundary between the simulated cornea region and the simulated sclera region, and

the extension region forms a simulated iris region.

3. The simulated eyeball of claim 1, wherein:

a recess is formed on the simulated sclera near the simulated cornea region, the recess being formed on the conductor-layer side of the simulated sclera; and

the recess forms a simulated Schlemm'"'"'s canal.

4. The simulated eyeball of claim 1, wherein:

the simulated sclera includes fibers having a diameter of 50-500 nm.

5. The simulated eyeball of claim 4, wherein the simulated sclera comprises:

a simulated sclera resin layer; and

a fiber layer that is layered on the simulated sclera resin layer.

6. The simulated eyeball of claim 4, wherein the simulated sclera comprises:

a cloth formed from the fibers; and

a resin with which the cloth is impregnated.

7. The simulated eyeball of claim 6, wherein:

at least two cloths are layered.

8. The simulated eyeball of claim 1, wherein:

an interior of the simulated eyeball is formed in a hollow sealed shape, and the hollow portion can be filled with a fluid; and

a pressure sensor that detects a pressure of the fluid that fills the hollow portion is formed inside or outside the simulated eyeball.

9. A device for training in ophthalmic surgery, the device comprising:

the simulated eyeball of claim 1;

an ophthalmic surgery instrument of which at least a tip part is formed from an electroconductive material; and

a sensing device for sensing that the tip part of the ophthalmic surgery instrument has come into contact with the conductor layer of the simulated eyeball.

16. The simulated eyeball of claim 2, wherein:

a recess is formed on the simulated sclera near the simulated cornea region, the recess being formed on the conductor-layer side of the simulated sclera; and

the recess forms a simulated Schlemm'"'"'s canal.

17. The simulated eyeball of claim 2, wherein:

the simulated sclera includes fibers having a diameter of 50-500 nm.

18. The simulated eyeball of claim 3, wherein:

the simulated sclera includes fibers having a diameter of 50-500 nm.

19. The simulated eyeball of claim 17, wherein the simulated sclera comprises:

a simulated sclera resin layer; and

a fiber layer that is layered on the simulated sclera resin layer.

20. The simulated eyeball of claim 17, wherein the simulated sclera comprises:

a cloth formed from the fibers; and

a resin with which the cloth is impregnated.

10. A method for training in ophthalmic surgery in which a simulated eyeball and an ophthalmic surgery instrument are used, wherein:

the simulated eyeball comprises

a simulated sclera region, and

a conductor layer formed on a side of the simulated sclera region that is on an interior of the simulated eyeball;

a tip part of the ophthalmic surgery instrument is formed from an electroconductive material;

the ophthalmic surgery instrument includes at least a surgical knife;

the training method comprising at least;

an incision step in which an incision is made in a simulated sclera using the surgical knife; and

a sensing step for sensing whether an edge of the surgical knife and the conductor layer have come into contact during the incision step.

11. A simulated eyeball for training in ophthalmic surgery, wherein:

the simulated eyeball includes a simulated sclera, and

the simulated sclera includes fibers having a diameter of 50-500 nm.

12. The simulated eyeball of claim 11, wherein the simulated sclera comprises:

a resin layer; and

a fiber layer that is layered on the resin layer.

13. The simulated sclera of claim 11, wherein the simulated sclera comprises:

a cloth formed from the fibers; and

a resin with which the cloth is impregnated.

14. The simulated sclera of claim 13, wherein:

at least two cloths are layered.

15. A simulated eyeball for training in ophthalmic surgery, wherein:

the simulated eyeball

has a simulated sclera region, and

is formed such that an interior of the simulated eyeball has a hollow sealed shape, and such that the hollow portion can be filled with a fluid; and

a pressure sensor that detects a pressure of the fluid that fills the hollow portion is formed inside the simulated eyeball or outside the simulated eyeball.