Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating a
Various high-strength microwave antenna assemblies are described herein. The microwave antenna has a radiating portion connected by a feedline to a power generating source, e.g., a generator. The antenna is a dipole antenna with the distal end of the radiating portion being tapered and terminating at a tip to allow for direct insertion into tissue. Antenna rigidity comes from placing distal and proximal radiating portions in a pre-stressed state, assembling them via threaded or overlapping joints, or fixedly attaching an inner conductor to the distal portion. The inner conductor is affixed to the distal portion by, e.g., welding, brazing, soldering, or by adhesives. A junction member made from a hard dielectric material, e.g., ceramic, can be placed between the two portions and can have uniform or non-uniform shapes to accommodate varying antenna designs. Electrical chokes may also be used to contain returning currents to the distal end of the antenna.
대표청구항▼
1. A microwave antenna assembly comprising: a feedline having an outer conductor;an electrical choke including: a conductive layer in electrical contact with the outer conductor of the feedline; anda first inner dielectric layer, at least a portion of the conductive layer separated from the outer co
1. A microwave antenna assembly comprising: a feedline having an outer conductor;an electrical choke including: a conductive layer in electrical contact with the outer conductor of the feedline; anda first inner dielectric layer, at least a portion of the conductive layer separated from the outer conductor of the feedline by the first inner dielectric layer; anda radiating portion disposed distally of the electrical choke. 2. The microwave antenna assembly according to claim 1, wherein the electrical choke further includes a second inner dielectric layer disposed over the first inner dielectric layer. 3. The microwave antenna assembly according to claim 1, wherein the electrical choke is attached to the outer conductor of the feedline by a method selected from the group consisting of welding, brazing, soldering, and crimping. 4. The microwave antenna assembly according to claim 1, further comprising a sealant coating disposed at least partially over the radiating portion. 5. The microwave antenna assembly according to claim 4, wherein the electrical choke is proximally spaced from the sealant coating. 6. The microwave antenna assembly according to claim 4, wherein the electrical choke and sealant coating at least partially overlap. 7. The microwave antenna assembly according to claim 4, wherein the sealant coating includes a thermoplastic polymer. 8. A microwave ablation system, comprising: an electrosurgical energy source;a microwave antenna assembly operatively connected to the electrosurgical energy source, the microwave antenna assembly including: a feedline having an outer conductor;an electrical choke including: a conductive layer in electrical contact with the outer conductor of the feedline; anda first inner dielectric layer, at least a portion of the conductive layer separated from the outer conductor of the feedline by the first inner dielectric layer; anda radiating portion disposed distally of the electrical choke. 9. The microwave ablation system according to claim 8, wherein the electrical choke further includes a second inner dielectric layer disposed over the first inner dielectric layer. 10. The microwave ablation system according to claim 8, wherein the electrical choke is attached to the outer conductor of the feedline by a method selected from the group consisting of welding, brazing, soldering, and crimping. 11. The microwave ablation system according to claim 8, wherein the microwave antenna assembly further includes a sealant coating disposed at least partially over the radiating portion. 12. The microwave ablation system according to claim 11, wherein the electrical choke is proximally spaced from the sealant coating. 13. The microwave ablation system according to claim 11, wherein the electrical choke and sealant coating at least partially overlap. 14. The microwave ablation system according to claim 11, wherein the sealant coating includes a thermoplastic polymer. 15. The microwave ablation system according to claim 8, wherein the electrosurgical energy source is a microwave generator.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (205)
Tu Lily Chen ; Tu Hosheng, Ablation apparatus and methods for treating atherosclerosis.
Stern Roger A. (Cupertino CA) Edwards Stuart D. (Los Altos CA) Jackson Jerome (Sunnyvale CA) Rosen Arye (Cherry Hill NJ), Articulated unidirectional microwave antenna systems for cardiac ablation.
Rudie Eric N. (Plymouth MN) Neilson Bruce H. (Brooklyn Park MN) Kauphusman James V. (Champlin MN), Device and method for asymmetrical thermal therapy with helical dipole microwave antenna.
Rudie Eric N. (Plymouth MN) Neilson Bruce H. (Brooklyn Park MN) Kauphusman James V. (Champlin MN), Device and method for asymmetrical thermal therapy with helical dipole microwave antenna.
Fogarty, Thomas J.; Willis, David B.; Howell, Thomas A.; Hermann, George D.; Wilson, Peter M.; Bush, Elizabeth M.; Kim, Steven W.; Turovskiy, Roman, Device for accurately marking tissue.
Fogarty, Thomas J.; Willis, David B.; Howell, Thomas A.; Hermann, George D.; Wilson, Peter M.; Bush, M. Elizabeth, Device for accurately marking tissue.
Thomas J. Fogarty ; David B. Willis ; Thomas A. Howell ; George D. Hermann ; Peter M. Wilson ; M. Elizabeth Bush, Device for accurately marking tissue.
Rudie Eric N. (Plymouth MN) Neilson Bruce H. (Brooklyn Park MN) Kauphusman James V. (Champlin MN), Device for asymmetrical thermal therapy with helical dipole microwave antenna.
Edwards Stuart D. (Los Altos CA) Lax Ronald G. (Grass Valley CA) Sharkey Hugh R. (Redwood Shores CA), Device for treating cancer and non-malignant tumors and methods.
Carl James R. ; Arndt G. Dickey ; Fink Patrick W. ; Beer N. Reginald ; Henry Phillip D. ; Pacifico Antonio ; Raffoul George W., Endothelium preserving microwave treatment for atherosclerois.
Carl James R. ; Arndt G. Dickey ; Fink Patrick W. ; Beer N. Reginald ; Henry Phillip D. ; Pacifico Antonio ; Raffoul George W., Endothelium preserving microwave treatment for atherosclerosis.
Carl James R. ; Arndt G. Dickey ; Fink Patrick W. ; Beer N. Reginald ; Henry Phillip D. ; Pacifico Antonio ; Raffoul George W., Endothelium preserving microwave treatment for atherosclerosis.
Malecki,William; Francis,Dan; Horne,Kenneth; Deem,Mark E.; Gifford,Hanson; Alejandro,Jose, Energy based devices and methods for treatment of anatomic tissue defects.
Miller Richard H. (Pittsburgh PA) Bates Brian L. (Bloomington IN) Hall Todd A. (Bloomington IN) Osborne Thomas A. (Bloomington IN), Guide for localizing a nonpalpable breast lesion.
Rosen Arye (Cherry Hill NJ) Edwards Stuart D. (Los Altos CA) Lax Ronald G. (Grassvalley CA) Sharkey Hugh R. (Redwood City CA) Lundquist Ingemar H. (Pebble Beach CA) Walinsky Paul (Wyndmoor PA), Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities.
Rosen Arye ; Edwards Stuart D. ; Lax Ronald G. ; Sharkey Hugh R. ; Lundquist Ingemar H. ; Walinsky Paul, Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities.
Rosen Arye (Cherry Hill NJ) Edwards Stuart D. (Los Altos CA) Lax Ronald G. (Grassvalley CA) Sharkey Hugh R. (Redwood City CA) Lundquist Ingemar H. (Pebble Beach CA), Medical probe apparatus with laser and/or microwave monolithic integrated circuit probe.
Edwards Stuart D. (Los Altos CA) Lax Ronald G. (Grass Valley CA) Lundquist Ingemar H. (Pebble Beach CA) Sharkey Hugh R. (Redwood City CA), Medical probe device and method.
Chive Maurice (Villeneuve D\Asco FRX) Constant Eugne (Villeneuve D\Asco FRX) Leroy Yves (Villeneuve D\Asco FRX) Mamouni Ahmed (Villeneuve D\Asco FRX) Robillard Michle (Lille FRX) Van de Velde Jean-Cl, Method and apparatus for measuring the temperature of a body in microwaves.
Hascoet Grard (Paris FRX) LaCoste Francois (Lyons FRX) Cathaud Muriel (Venissieux FRX) Jacomino Jean-Marie (Villeurbanne FRX) Devonec Marian (Miribel FRX) Perrin Paul (Lyons FRX), Method and apparatus for the surgical treatment of tissues by thermal effect, and in particular the prostate, using a ur.
Hascoet Grard (Paris FRX) Lacoste Francois (Lyons FRX) Cathaud Muriel (Venissieux FRX) Jacomino Jean-Marie (Villeurbanne FRX) Devonec Marian (Miribel FRX) Perrin Paul (Lyons FRX), Method and apparatus for the surgical treatment of tissues by thermal effect, and in particular the prostate, using a ur.
Sharkey Hugh R. ; Ashley John ; Saal Joel ; Saal Jeffrey A. ; Le Le Trong, Method for delivering energy adjacent the inner wall of an intervertebral disc.
Rudie Eric N. ; Dann Mitchell ; Reid John M. ; Neilson Bruce H. ; Kauphusman James V. ; Burgett James E. ; Kluge Stanley E. ; Norsted Steven W., Method for treating benign prostatic hyperplasia with thermal therapy.
Kasevich Raymond S. (Weston MA) Dwyer Arthur S. (Braintree MA) Guerreri Bart G. (Framingham MA), Microwave dipole probe for in vivo localized hyperthermia.
Edwards Stuart D. (Los Altos CA) Lax Ronald G. (Grass Valley CA) Lundquist Ingemar H. (Pebble Beach CA) Sharkey Hugh R. (Redwood City CA), Microwave probe device and method.
Brevard Christian,FRX ; Weiss Michel,FRX ; Loewenguth Bernard,FRX ; Mabire Jean-Pierre,FRX, Probe, particulary a urethral probe, for heating of tissues by microwave and for the measurement of temperature by radio.
Zipes Duglas P. (Carmel IN) Ulrich Clare P. (Minneapolis MN) Blankenau Paul D. (Minneapolis MN) Terrell William M. (Coon Rapids MN), RF lead fixation and implantable lead.
Jandak Jennifer ; Rosinko Michael J. ; Horzewski Michael J. ; Khairkhahan Alexander, Resistive heating system and apparatus for improving blood flow in the heart.
Edwards Stuart D. (Los Altos CA) Jackson Jerome (Sunnyvale CA) Stern Roger A. (Cupertino CA) Morse Thomas M. (San Jose CA) Owens Patrick M. (Cupertino CA), Steerable antenna systems for cardiac ablation that minimize tissue damage and blood coagulation due to conductive heati.
Visram,Naheed; Shah,Krishan, Surgical perforation device with electrocardiogram (ECG) monitoring ability and method of using ECG to position a surgical perforation device.
Morgan,Roy; Saravia,Heber; Voges,Jens; Prakash,Mani, System and method for regulating an amount of thermal energy generated by an electrosurgical tool.
Eric N. Rudie ; Scott Stockmoe ; Aaron Hjelle ; Bruce W. Ebner ; Joel Crabb ; Jonathan L. Flachman ; Stan Kluge ; Satish Ramadhyani ; Bruce Neilson, Thermal therapy catheter.
Arndt G. Dickey ; Carl James R. ; Raffoul George W. ; Karasack Vincent G. ; Pacifico Antonio ; Pieper Carl F., Transcatheter antenna for microwave treatment.
Turner Paul F. (North Salt Lake UT) Schaefermeyer Theron N. (North Salt Lake UT) Tumeh Amer M. (Salt Lake City UT), Urethral inserted applicator for prostate hyperthermia.
Hascoet Grard (Paris FRX) Lacoste Francois (Lyons FRX) Cathaud Muriel (Venissieux FRX) Devonec Marian (Miribel FRX) Perrin Paul (Lyons FRX), Urethral probe and apparatus for the therapeutic treatment of the prostate by thermotherapy.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.