# US 2017/0281561 A1 · Drug delivery fabric having drug-containing layer

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- Number: US 2017/0281561 A1
- Document ID: US20170281561A1
- Status: Published application
- Kind: A1
- Application number: 15/507,644
- Filed: 2014-08-28
- Published: 2017-10-05
- Earliest claimed: 2014-08-28
- Assignees: Ventex Co., Ltd.
- Applicants: Ventex Co.,Ltd.
- Inventors: KYUNG CHAN GO; GWANG WUNG YANG; YONG HWAN RHO
- Web page: https://patentgrep.com/patent/US20170281561A1

## CPC

- A61K 9/703: {characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches}
- A61K 9/14: Particulate form, e.g. powders, {Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles (microspheres A61K9/16; microcapsules A61K9/50; nanocapsules, nanoparticles of the matrix type A61K9/51)}
- A61K 9/50: Microcapsules {having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals (A61K9/2081 takes precedence; particles with a single coating comprising drug A61K9/167)}
- A61K 9/7007: {Drug-containing films, membranes or sheets (A61K9/0041, A61K9/0043, A61K9/006, A61K9/0063 take precedence)}
- A61K 31/522: having oxo groups directly attached to the heterocyclic ring, e.g. hypoxanthine, guanine, acyclovir
- A61K 9/7061: {Polyacrylates}
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)

## Abstract

The present invention relates to a drug delivery fabric having a drug-containing layer, wherein the drug delivery fabric comprises a surface layer, a middle layer, and a drug-containing layer, the middle layer is formed of a yarn having hydrophilicity relatively equal to or higher than that of the surface layer, the drug-containing layer is formed of a cellulose derivative film containing a drug.

## Claims

### Claim 1

A drug delivery fabric having a drug-containing layer, wherein the drug delivery fabric includes a surface layer, a middle layer, and a drug-containing layer, the middle layer is formed of a yarn having hydrophilicity relatively equal to or higher than that of the surface layer, and the drug-containing layer is formed of a cellulose derivative film containing a drug.

### Claim 2 (depends on 1)

The drug delivery fabric having a drug-containing layer of claim 1, wherein the middle layer has tissue density relatively higher than that of the surface layer.

### Claim 3 (depends on 1)

The drug delivery fabric having a drug-containing layer of claim 1, wherein the surface layer is formed of any one of polypropylene-based fibers, polyester-based fibers, polyamide-based fibers, and cellulose-based fibers or by blending two or more fibers thereof.

### Claim 4 (depends on 1)

The drug delivery fabric having a drug-containing layer of claim 1, wherein the middle layer is formed of any one of polyamide-based fibers, polyacryl-based fibers, polyester-based fibers, cellulose-based fibers, and protein-based fibers or by blending two or more fibers thereof.

### Claim 5 (depends on 1)

The drug delivery fabric having a drug-containing layer of claim 1, wherein the drug contained in the drug-containing layer is included by encapsulation.

### Claim 6 (depends on 1)

The drug delivery fabric having a drug-containing layer of claim 1, wherein the drug contained in the drug-containing layer is caffeine.

### Claim 7 (depends on 1)

Clothes having a drug delivery function comprising the drug delivery fabric of any one of claims 1.

### Claim 8 (depends on 2)

Clothes having a drug delivery function comprising the drug delivery fabric of claim 2.

### Claim 9 (depends on 3)

Clothes having a drug delivery function comprising the drug delivery fabric of claim 3.

### Claim 10 (depends on 4)

Clothes having a drug delivery function comprising the drug delivery fabric of claim 4.

### Claim 11 (depends on 5)

Clothes having a drug delivery function comprising the drug delivery fabric of claim 5.

### Claim 12 (depends on 6)

Clothes having a drug delivery function comprising the drug delivery fabric of claim 6.