Implantable stimulation and drug infusion techniques
US5697951A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Apr 25, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N1/306
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An implantable system for infusing a fluid agent and providing electrical stimulation without requiring an implanted pump or implanted source of electrical energy. An implantable housing is fitted with a percutaneous fill port that communicates with a reservoir to hold a fluid agent, such as a drug. An antenna located inside the housing receives radio frequency power signals from an outside antenna. A pulse generator outside the housing receives power and information from the radio frequency signals to produce stimulation pulses. The pulses and the fluid agent are both transported by a catheter to a site of application in the body. A connector allows the stimulation pulses and fluid agent to be transported from the housing to the catheter while maintaining electrical isolation between the stimulating pulses and the fluid agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.