Protective device for hypodermic needle
US4857060A · kind A · utility
Inventor
Key dates
| Filing date | Jun 13, 1988 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Jun 13, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/3216
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A protective device, for a hypodermic needle having a cylinder with a plunger coaxial along an axis, and an end wall with a projecting needle, is provided. The device has an annular, radially projecting web portion of fabric or plastic material, which has a radially inner edge and a radially outer edge. The device has a collar, which is joined to the radially inner edge. The collar is mounted on the cylinder end wall. The device also has a closing drawstring, which is threaded inside a turned-in edge portion of the radially outer edge of the web portion. The web portion has first, second third, and fourth rigid members, composed of a plastic material or the like. The first rigid member has a bent end portion. The rigid members form a box-like structure around the needle, when the web portion is in a closed condition. The rigid portions each have beveled side edges. The cylinder has an adhesive tape for holding taut the drawstring, when the web portion is in a closed condition. The cylinder end wall has a neck portion, on which the collar is mounted. The neck portion has a tapered portion supporting the needle. When the needle is withdrawn from the skin of a patient, the protective …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.