초록 ▼

High-strength microwave antenna assemblies and methods of use are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member

High-strength microwave antenna assemblies and methods of use are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. Proximal and distal radiating portions of the antenna assembly are separated by a junction member. A reinforcing member is disposed within the junction member to increase structural rigidity.

대표청구항 ▼

1. A microwave antenna assembly comprising: a radiating portion configured to operably couple to a source of microwave energy via a cable assembly, the radiating portion comprising: a proximal radiating portion including an outer conductor and an inner conductor separated by a dielectric material; a

1. A microwave antenna assembly comprising: a radiating portion configured to operably couple to a source of microwave energy via a cable assembly, the radiating portion comprising: a proximal radiating portion including an outer conductor and an inner conductor separated by a dielectric material; anda distal radiating portion disposed distally of the proximal radiating portion, the inner conductor longitudinally extending at least partially within the distal radiating portion;an electrically conductive member disposed proximal of the distal radiating portion, the electrically conductive member coupled to the outer conductor;an insulator disposed between at least a portion of the electrically conductive member and the outer conductor; anda thermocouple disposed within the radiating portion and configured to sense temperature within the radiating portion. 2. The microwave antenna assembly according to claim 1, further comprising an outer dielectric layer disposed over the electrically conductive member. 3. The microwave antenna assembly according to claim 1, further comprising a second thermocouple operably coupled to the radiating portion and configured to sense temperature of the radiating portion. 4. The microwave antenna assembly according to claim 1, further comprising a cooling fluid chamber coaxially disposed around the radiating portion and configured to receive cooling fluid therethrough. 5. A microwave ablation system comprising: a source of microwave energy configured to generate microwave energy; anda cable assembly configured to couple a microwave antenna assembly to the source of microwave energy, the microwave antenna assembly comprising: a radiating portion comprising: a proximal radiating portion including an outer conductor and an inner conductor separated by a dielectric material; anda distal radiating portion disposed distally of the proximal radiating portion, the inner conductor longitudinally extending at least partially within the distal radiating portion;an electrically conductive member disposed proximal of the distal radiating portion, the electrically conductive member coupled to the outer conductor;an insulator disposed between at least a portion of the electrically conductive member and the outer conductor; anda thermocouple disposed within the radiating portion and configured to sense temperature within the radiating portion. 6. The microwave ablation system according to claim 5, wherein the microwave antenna assembly further comprises an outer dielectric layer disposed over the electrically conductive member. 7. The microwave ablation system according to claim 5, wherein the microwave antenna assembly further comprises a second thermocouple operably coupled to the radiating portion and configured to sense temperature of the radiating portion. 8. The microwave ablation system according to claim 5, wherein the microwave antenna assembly further comprises a cooling fluid chamber coaxially disposed around the radiating portion and configured to receive cooling fluid therethrough.