Systems and methods for reinjection of processed vitreous humor

Patent metadata

Field	Value
Publication number	US-9549849-B2
Application number	US-201213614483-A
Country	US
Kind code	B2
Filing date	Sep 13, 2012
Priority date	Sep 13, 2012
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

A system for the removal of vitreous humor and other fluids from an eye and the reinjection of filtered vitreous humor into the eye is provided. The system comprises a hollow removal device, a filter, and an infusion device. The removal device includes an element configured to cut the vitreous humor and is configured to aspirate the vitreous humor from the eye. The filter is configured to create a filtered form of vitreous humor by separating the vitreous humor from undesired components in the vitreous humor. The infusion device is fluidly coupled to the filter and is configured to return the filtered form of vitreous humor into the eye.

First claim

I claim:

1. A system for removal of vitreous humor and other fluids from an eye and reinjection of filtered vitreous humor into the eye, the system comprising:
a hollow removal device including an element configured to cut the vitreous humor, the removal device configured to aspirate the vitreous humor from the eye;
a vacuum source configured to power the aspiration of the vitreous humor from the eye into the removal device;
an aspiration chamber, wherein the vacuum source is configured to power the aspiration of the vitreous humor from the eye into the aspiration chamber;
a first fluid level sensor coupled to the aspiration chamber, wherein the first fluid level sensor is configured to measure a level of fluid within the aspiration chamber;
a concentrator fluidly coupled to the aspiration chamber and configured to receive the fluid from the aspiration chamber when the first fluid level sensor detects a predetermined level of fluid in the aspiration chamber, wherein the concentrator is configured to create a concentrated form of the vitreous humor by separating the vitreous humor from the other fluids;
a filter fluidly coupled to the concentrator, wherein the filter is configured to receive the concentrated form of the vitreous humor and create a filtered form of the vitreous humor by separating the vitreous humor from undesired components in the vitreous humor;
a reservoir fluidly coupled to the filter and configured to receive the filtered form of the vitreous humor from the filter;
a second fluid level sensor coupled to the reservoir, wherein the second fluid level sensor is configured to measure a level of fluid within the reservoir;
an infusion device fluidly coupled to the reservoir and configured to return the filtered form of the vitreous humor into the eye when the second fluid level sensor measures a predetermined fluid level in the reservoir.

2. The system of claim 1 , wherein the concentrator is configured to separate the vitreous humor from the other fluids by centrifugal force.

3. The system of claim 1 , wherein the filter is configured to separate the vitreous humor from the other fluids by centrifugal force.

4. The system of claim 1 , wherein the undesired components are selected from a group consisting of blood cells, cellular debris, foreign bodies, infectious material, and non-native precipitates and particulates.

5. The system of claim 1 , wherein the filter comprises a mesh separator.

6. The system of claim 1 , wherein the filter comprises a membrane separator.

7. The system of claim 6 , wherein the membrane separator comprises a microfiber filter.

Assignees

• Charles Steven T
• Alcon Res Ltd

Inventors

• Charles Steven T

Classifications

• A61F9/00745 Primary

  using mechanical vibrations, e.g. ultrasonic · CPC title

• A61F9/00736

  Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments (A61F9/008 takes precedence) · CPC title