Computer controlled drug delivery system with dynamic pressure sensing
US7618409B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2006 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | May 9, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/582
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus and method for a controlled injection of a drug into a selected tissue of a subject by a practitioner, uses a drive unit for supplying the drug and a handpiece to be held and guided by the practitioner, connected to the drive unit for receiving the drug. The handpiece holds an injection needle to be inserted into the selected tissue by the practitioner for passing the drug to the selected tissue at an instantaneous and absolute pressure that varies as a function of the type of tissue and the placement of the needle. A pressure sensor senses this instantaneous pressure and a feedback mechanism supplies a perceptible audible, visual or other signal to the practitioner that indicates when the instantaneous pressure has reached a minimum desired pressure, the practitioner thus being informed that the correct placement and dosage has been attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.