Catheter device and method for delivering a dose internally during minimally-invasive surgery
US6802824B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Sep 6, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0089
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter handpiece apparatus and method for delivering a desired dose with minimal potential for contamination of the injected substance and rapid, accurate delivery of the desired dose. In one embodiment, a carriage assembly affixed to an inner lumen is slidably located within a handpiece housing equipped with an outer lumen. The carriage assembly receives a dose carpule. An actuator knob cocks the carriage assembly and a spring-powered actuator mechanism. After the catheter is maneuvered to a desired injection site and a desired dose is set, depressing a first trigger causes the inner lumen tip to extend beyond the outer lumen into the injection site. Depressing a second trigger causes the actuator mechanism to push the desired dose from the dose carpule through the inner lumen into the injection site. A second embodiment provides a catheter handpiece with a carriage assembly cocking lever and an operator-powered dose delivery mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.