Narrow gauge high strength choked wet tip microwave ablation antenna
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/18
A61B-018/14
A61B-018/00
출원번호
US-0931922
(2015-11-04)
등록번호
US-9662172
(2017-05-30)
발명자
/ 주소
Brannan, Joseph D.
Bonn, Kenlyn S.
출원인 / 주소
COVIDIEN LP
인용정보
피인용 횟수 :
0인용 특허 :
115
초록▼
An electromagnetic surgical ablation probe having a coaxial feedline and cooling chamber is disclosed. The disclosed probe includes a dipole antenna arrangement having a radiating section, a distal tip coupled to a distal end of the radiating section, and a ring-like balun short, or choke, which may
An electromagnetic surgical ablation probe having a coaxial feedline and cooling chamber is disclosed. The disclosed probe includes a dipole antenna arrangement having a radiating section, a distal tip coupled to a distal end of the radiating section, and a ring-like balun short, or choke, which may control a radiation pattern of the probe. A conductive tube disposed coaxially around the balun short includes at least one fluid conduit which provides coolant, such as dionized water, to a cooling chamber defined within the probe. A radiofrequency transparent catheter forms an outer surface of the probe and may include a lubricious coating.
대표청구항▼
1. An ablation probe, comprising: a tubular shaft;a coaxial feedline disposed within the tubular shaft, the coaxial feedline including an outer conductor;a balun short disposed in electrical communication around the outer conductor, the balun short including at least one longitudinal notch defined t
1. An ablation probe, comprising: a tubular shaft;a coaxial feedline disposed within the tubular shaft, the coaxial feedline including an outer conductor;a balun short disposed in electrical communication around the outer conductor, the balun short including at least one longitudinal notch defined therein;a conductive tube disposed coaxially around the balun short and within the tubular shaft, the conductive tube defining at least one fluid conduit; andan inflow tube disposed longitudinally along the outer conductor and at least partially within the at least one longitudinal notch. 2. The ablation probe according to claim 1, wherein the balun short includes a plurality of additional longitudinal notches defined therein adapted to receive a corresponding rib member therein. 3. The ablation probe according to claim 2, wherein the rib members divide the at least one fluid conduit into at least two longitudinal channels. 4. The ablation probe according to claim 1, wherein a distal end of the conductive tube is positioned about one quarter wavelength distally from the balun short. 5. The ablation probe according to claim 1, wherein the balun short is formed from a conductive material selected from the group consisting of a screen material, a mesh material, and a woven material. 6. The ablation probe according to claim 1, wherein the balun short is formed from a conductive material selected from the group consisting of a metallic material and a polymeric material. 7. The ablation probe according to claim 1, wherein the coaxial feedline further includes an inner conductor and the outer conductor is disposed coaxially about the inner conductor. 8. The ablation probe according to claim 7, wherein the coaxial feedline further includes a dielectric disposed between the inner conductor and the outer conductor and the inner conductor and the dielectric extend beyond a distal end of the outer conductor. 9. The ablation probe according to claim 8, further comprising a radiating section having a proximal end operably coupled to a distal end of the inner conductor. 10. The ablation probe according to claim 1, further comprising a distal tip coupled to a distal end of the tubular shaft. 11. An ablation system, comprising: a source of microwave ablation energy; andan ablation probe including: a tubular shaft;a coaxial feedline disposed within the tubular shaft, the coaxial feedline coupled to the source of microwave ablation energy and including an outer conductor;a balun short disposed in electrical communication around the outer conductor, the balun short including at least one longitudinal notch defined therein;a conductive tube disposed coaxially around the balun short and within the tubular shaft, the conductive tube defining at least one fluid conduit; andan inflow tube disposed longitudinally along the outer conductor and at least partially within the at least one longitudinal notch. 12. The ablation system according to claim 11, further comprising a source of coolant in fluid communication with the at least one fluid conduit. 13. The ablation system according to claim 11, wherein the balun short includes a plurality of additional longitudinal notches defined therein adapted to receive a corresponding rib member therein. 14. The ablation system according to claim 13, wherein the rib members divide the at least one fluid conduit into at least two longitudinal channels. 15. The ablation system according to claim 11, wherein a distal end of the conductive tube is positioned about one quarter wavelength distally from the balun short. 16. The ablation system according to claim 11, wherein the balun short is formed from a conductive material selected from the group consisting of a screen material, a mesh material, and a woven material. 17. The ablation system according to claim 11, wherein the balun short is formed from a conductive material selected from the group consisting of a metallic material and a polymeric material. 18. The ablation system according to claim 11, wherein the coaxial feedline further includes an inner conductor and the outer conductor is disposed coaxially about the inner conductor. 19. The ablation system according to claim 18, wherein the coaxial feedline further includes a dielectric disposed between the inner conductor and the outer conductor and the inner conductor and the dielectric extend beyond a distal end of the outer conductor. 20. The ablation system according to claim 19, further comprising a radiating section having a proximal end operably coupled to a distal end of the inner conductor.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (115)
Kim, Steven; Bonn, Kenlyn S.; Prakash, Mani N.; Rossetto, Francesca, Ablation devices with adjustable radiating section lengths, electrosurgical systems including same, and methods of adjusting ablation fields using same.
Wallace, Michael P.; Eder, Joseph C., Apparatus and method for internally inducing a magnetic field in an aneurysm to embolize aneurysm with magnetically-controllable substance.
Proctor Paul W. (Rte. 2 ; Kathy La. White Plains MD 20695) Dow Robert L. (Rte. 5 ; Box 415 LaPlata MD 20646), Device for protecting an electronic prosthesis from adverse effects of RF and/or electrostatic energy.
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.
James R. Carl ; G. Dickey Arndt ; Patrick W. Fink ; N. Reginald Beer ; Phillip D. Henry ; Antonio Pacifico ; George W. Raffoul, Endothelium preserving microwave treatment for atherosclerosis.
Husheer, Shamus Louis Godfrey; Chausiaux, Oriane Elisabeth; Yates, Martin Robert; Richards, Samuel Charles; Godfrey, Daniel Peterson; Batchelor, Liu M. V., Hand-held device.
Azam Guy (la Celle-Saint-Cloud FRX) Convert Guy (Vincennes FRX) Dufour Jacques (Orsay FRX) Jasmin Claude (Paris FRX) Sidi Jol (Paris FRX), Hyperthermia apparatus.
Boddie ; Jr. Arthur W. (Houston TX) Frazer James W. (Houston TX) Yamanashi William S. (Jenks OK), RF electromagnetic field generation apparatus for regionally-focused hyperthermia.
Funda Janez (Valhalla NY) LaRose David A. (Croton on Hudson NY) Taylor Russell H. (Ossining NY), System and method for augmentation of endoscopic surgery.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.