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US 11,331,145 B2Granted
Device for laser thermal ablation with a diffusing catheter and equipment comprising said device
AssigneeElesta S.P.A.
InventorsLeonardo Masotti, Luca Breschi
Life of this patent
Estimating the term…
Abstract
The device comprises: —an outer tubular structure (21) having a closed terminal end; —an inner tubular structure (23), positioned in the outer tubular structure, and having a side wall with a terminal end and defining an inner volume, configured to receive a light guide (27); in which between the outer tubular structure (21) and the inner tubular structure (23) a first gap (25) for circulation of a coolant is formed; At least a portion of the external tubular structure (21) or the internal tubular structure (23) is diffusing to an electromagnetic radiation propagating in the light guide (27).
Claims20
A device for laser thermal ablation, the device comprising:
- an outer tubular structure having a closed terminal end;
- and
- an inner tubular structure positioned in the outer tubular structure and the inner tubular structure having a side wall with a terminal end and the inner tubular structure defining an inner volume configured to receive a light guide, wherein a coolant circulation gap is formed between the outer tubular structure and the inner tubular structure, at least a portion of the inner tubular structure diffusing to an electromagnetic radiation propagating in the light guide, at least a portion of the outer tubular structure being transparent or diffusing to the electromagnetic radiation, wherein the light guide is housed in the inner volume of the inner tubular structure and the light guide has a distal end facing the terminal end of the inner tubular structure, wherein another coolant circulation gap is formed between the inner tubular structure and the light guide, wherein a terminal portion of the inner tubular structure extending beyond the distal end of the light guide toward the terminal end of the inner tubular structure is diffusing to the electromagnetic radiation propagating in the light guide and the terminal end of the inner tubular structure is tapered to increase a portion of electromagnetic radiation that is incident on an inner surface of the inner tubular structure and facilitate outwards diffusion thereof, wherein the outer tubular structure is closed by a closing element.
An apparatus for laser thermal ablation, the apparatus comprising:
- a device comprising an outer tubular structure and an inner tubular structure, the outer tubular structure having a closed terminal end, the inner tubular structure being positioned in the outer tubular structure and the inner tubular structure having a side wall with a terminal end and the inner tubular structure defining an inner volume configured to receive a light guide, wherein a coolant circulation gap is formed between the outer tubular structure and the inner tubular structure, at least a portion of the inner tubular structure diffusing to an electromagnetic radiation propagating in the light guide, at least a portion of the outer tubular structure being transparent or diffusing to the electromagnetic radiation, wherein the light guide is housed in the inner volume of the inner tubular structure and the light guide has a distal end facing the terminal end of the inner tubular structure, wherein another coolant circulation gap is formed between the inner tubular structure and the light guide, wherein a terminal portion of the inner tubular structure extending beyond the distal end of the light guide toward the terminal end of the inner tubular structure is diffusing to the electromagnetic radiation propagating in the light guide and the terminal end of the inner tubular structure is tapered to increase a portion of electromagnetic radiation that is incident on an inner surface of the inner tubular structure and facilitate outwards diffusion thereof, wherein the outer tubular structure is closed by a closing element;
- a laser source;
- a cooling circuit;
- and
- a control unit.
2 more elements
A device for laser thermal ablation, the device comprising:
- an outer tubular structure having a closed terminal end;
- and
- an inner tubular structure positioned in the outer tubular structure and the inner tubular structure having a side wall with a terminal end and the inner tubular structure defining an inner volume configured to receive a light guide, wherein a coolant circulation gap is formed between the outer tubular structure and the inner tubular structure, at least a portion of the inner tubular structure comprising a means for diffusing electromagnetic radiation propagating in the light guide, at least a portion of the outer tubular structure being transparent or the portion of the outer tubular structure comprising another means for diffusing the electromagnetic radiation, wherein the light guide is arranged in the inner volume of the inner tubular structure and the light guide has a distal end facing the terminal end of the inner tubular structure, wherein another coolant circulation gap is formed between the inner tubular structure and the light guide, the inner tubular structure comprising a tapered terminal portion extending beyond the distal end of the light guide toward the terminal end of the inner tubular structure and diffusing to the electromagnetic radiation propagating in the light guide to increase a portion of electromagnetic radiation that is incident on an inner surface of the inner tubular structure and facilitate outwards diffusion thereof, wherein a closing element closes the outer tubular structure.
Dependencies are inferred from the claim text.