# US 5,346,061 A · Biostable treatment delivery system

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- Number: US 5,346,061 A
- Document ID: US5346061A
- Status: Granted
- Kind: A
- Application number: 07/926,767
- Filed: 1992-08-06
- Granted: 1994-09-13
- Earliest claimed: 1992-08-06
- Assignees: Avitar, Inc.
- Inventors: Martin H. Newman; Philip Sanfilippo
- Web page: https://patentgrep.com/patent/US5346061A

## CPC

- B65D 81/3272: {formed by arranging one flexible container within another}
- A61C 19/06: Implements for therapeutic treatment (radiation therapy A61N5/00)
- Y10S 206/828: Medicinal content
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- A61C: DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE (non-driven toothbrushes A46B; {tongue scrapers A61B17/24;} preparations for dentistry A61K6/00; preparations for cleaning the teeth or mouth A61K8/00, A61Q11/00)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A treatment delivery system which uses a flexible plastic outer container and a smaller, readily burstable, thin film plastic inner container fixedly positioned in the outer container. The inner container contains a treatment solution and a dry foam appliance is loosely placed within the inner container. When the inner container is burst by applying pressure to the outer container at a position which corresponds to the position of the inner container therein, the treatment solution comes into contact with the foam appliance so as to be absorbed by, and to wet the appliance. The wetted foam appliance can then be removed from the outer container for use.

## Claims

### Claim 1

A treatment delivery system comprising a readily openable hermetically and completely sealed flexible plastic outer container forming a single first chamber;
a completely sealed and flexible plastic inner container, forming a single second chamber, which is smaller than said outer container and is fixedly positioned within the single first chamber of said outer container so as to be completely enclosed therein, said inner container containing a treatment solution and being made of a thin film plastic material so that it can be readily burst upon the application of pressure thereto;
a dry foam element placed within said outer container;
means on said outer container for indicating the position of said inner container within said outer container so that, when pressure is applied to the outer container at said indicated position, the inner container bursts and said treatment solution comes into contact with said dry foam element so as to wet said foam element with the treatment solution, whereby the wetted foam element is available for delivery of said treatment solution when the outer container is open.

### Claim 2 (depends on 1)

A treatment delivery system in accordance with claim 1 wherein said flexible outer container is made of polyester film base having an aluminum laminate on one surface thereof and a polyethylene layer on the opposite surface thereof.

### Claim 3 (depends on 1)

A treatment delivery system in accordance with claim 1 wherein said inner container is made of a thin film polyester plastic material.

### Claim 4 (depends on 3)

A treatment delivery system in accordance with claim 3 wherein said inner container is pre-scored along an edge thereof.

### Claim 5 (depends on 1)

A treatment delivery system in accordance with claim 1 wherein said indicating means is a legend imprinted on said outer container in substantial registry with the position of said inner container within the outer container.

### Claim 6 (depends on 1)

A treatment delivery system in accordance with claim 1 wherein said dry foam element is loosely placed within said outer container so that, when said treatment solution is present after the inner container is burst, said outer container can be manipulated to assure that the foam element therein is thoroughly wetted with said treatment solution.

### Claim 7 (depends on 1)

A treatment delivery system in accordance with claim 1 wherein said dry foam element is a dental appliance and said treatment solution is dental treatment solution.

### Claim 8 (depends on 7)

A treatment delivery system in accordance with claim 7 wherein said dental treatment solution is a fluoride solution.

### Claim 9 (depends on 7)

A treatment delivery system in accordance with claim 7 wherein said dental treatment solution is a bleaching solution.