# US 8,540,504 B2 · Equipment for electrospinning

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- Number: US 8,540,504 B2
- Document ID: US8540504B2
- Status: Granted
- Kind: B2
- Application number: 12/723,945
- Filed: 2010-03-15
- Published: 2010-07-08
- Granted: 2013-09-24
- Earliest claimed: 2007-04-20
- Assignees: National Applied Research Laboratories; Taipei Medical University
- Applicants: Kuen-Wey Shieh; Chien-Chung Chen; Yung-Sheng Lin
- Inventors: Kuen-Wey Shieh; Chien-Chung Chen; Yung-Sheng Lin
- Web page: https://patentgrep.com/patent/US8540504B2

## CPC

- D01D 5/0092: {characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields}
- D01D: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS

## Abstract

An electrospinning equipment is provided. The electrospinning equipment includes a power supply, a collector and a material supply electrically connected to the power supply facing the collector and having a spinneret and a guide unit coupled to the spinneret and bent toward the collector, and the spinneret is configured at a central portion of the guide unit.

## Claims

### Claim 1

An electrospinning equipment, comprising:
a power supply;
a collector;
a material supply electrically connected to the power supply, facing the collector and having a spinneret; and
a guide unit electrically connected to the power supply and covering the spinneret and the collector to form an enclosed space between the guide unit and the collector, wherein the guide unit comprises an insulating structure located on both ends of the enclosed space and is connected to the collector, so that the electrospinning equipment has an electric field formed inside the enclosed space and converging toward the collector.

### Claim 2 (depends on 1)

An electrospinning equipment according to claim 1, wherein the power supply further comprises a first power supply and a second power supply, the first power supply is electrically connected to the material supply, and the second power supply is electrically connected to the guide unit.

### Claim 3 (depends on 1)

An electrospinning equipment according to claim 1, wherein the guide unit further has a center or a focal point located on the collector.

### Claim 4 (depends on 3)

An electrospinning equipment according to claim 3, wherein the guide unit further has an inner surface and distances, which between everywhere on the inner surface and the center are equal.

### Claim 5 (depends on 1)

An electrospinning equipment according to claim 1, wherein the guide unit is formed by extending outward from the spinneret toward the collector.

### Claim 6 (depends on 1)

An electrospinning equipment according to claim 1, wherein the guide unit further has an indentation surface facing the collector, the indentation surface has an opening being farthest away from the collector, and the spinneret is located at the opening.