Modular biopsy and microwave ablation needle delivery apparatus adapted to in situ assembly and method of use
US6652520B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Oct 18, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/3937
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A modular biopsy, ablation and track coagulation needle apparatus is disclosed that allows the biopsy needle to be inserted into the delivery needle and removed when not needed, and that allows an inner ablation needle to be introduced and coaxially engaged with the delivery needle to more effectively biopsy a tumor, ablate it and coagulate the track through ablation while reducing blood loss and track seeding. The ablation needle and biopsy needle are adapted to in situ assembly with the delivery needle. In a preferred embodiment, the ablation needle, when engaged with the delivery needle forms a coaxial connector adapted to electrically couple to an ablating source. Methods for biopsying and ablating tumors using the device and coagulating the track upon device removal are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.