Apparatus and method for painless intramuscular or subcutaneous injections
US6312412A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1998 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Dec 2, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/587
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A painless injection apparatus includes a first injector having a first storage chamber storing a numbing agent, a first needle, and a first plunger, and a second injector having a second storage chamber storing a medication, a second needle, and a second plunger. The injection apparatus further includes a plunger actuation device coupled to the first and second plungers and the second storage chamber. The plunger actuation device is adapted to sequentially advance the first plunger, the second storage chamber, and then the second plunger to inject the numbing agent and then the medication painlessly into a patient's tissues at the desired depths. The needles and medicine storage chambers are enclosed in a disposable portion of the injection apparatus which can be disposed of properly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.