Ablation probe for delivering fluid through porous structure
US7993335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2006 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Oct 3, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/94
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Ablation probes are provided for perfusing the tissue, while the tissue is ablated. The ablation probe comprises an elongated shaft and an ablative element, such as a needle electrode. The ablation probe further comprises a lumen that extends through the probe shaft, which will be used to deliver an fluid to the distal end of the probe shaft for perfusion into the surrounding tissue. The ablation probe further comprises a porous structure that is associated with the distal end of the shaft in fluid communication with the lumen. For example, the distal end of the shaft, or the entirety of the shaft, can be composed of the porous structure. Or, if the ablative element is an electrode, the electrode can be composed of the porous structure. Because the pores within the porous structure are pervasive, the fluid will freely flow out into the tissue notwithstanding that some of the pores may become clogged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.