Method and device for painless injection of medication
US7637891B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2003 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Jun 13, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/2073
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A device for painlessly injecting medications, and a method for providing a substantially painless injection of medication into a patient that does not require the use of an anesthetic, that does not require the medical personnel to spend a substantial amount of time performing the injection procedure, that is relatively simple and inexpensive to perform and operate, and that provides a relatively high degree of safety for both the medical personnel and for the patient. The injection needle can have an outside diameter greater than 0.20 mm and less than about 0.38 mm. The medicament can be injected painlessly through the needle and into the patient at a substantially constant volumetric flow rate of about 0.05 μL/s to about 50 μL/s.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.