US5913855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple antenna ablation apparatus and method
Assignee: Angiodynamics Inc
•
Filing: 1997-11-03
•
Granted: 1999-06-22
•
Expires: 2017-11-03
Abstract
Abstract An ablation treatment apparatus has a multiple antenna device. The multiple antenna device includes a primary antenna with a lumen and a longitudinal axis, and a secondary antenna positionable in the lumen. At a selected tissue site the secondary antenna is deployed in a lateral direction relative to the longitudinal axis of the primary antenna. At least a portion of a distal end of the secondary antenna is structurally less rigid than the primary antenna. The primary antenna is constructed to be rigid enough to be introduced through tissue. A cable couples one or both of the antennas to an energy source.
Inventors
- 👤 Edward J. Gough
- 👤 Alan A. Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:55
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B18/1482; A61B18/18; A61B18/1815; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N1/40; A61N1/403; A61B18/1206; A61B18/1402; A61B18/1485; A61B18/1492; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00084; A61B2017/00101; A61B2018/00005; A61B2018/00011; A61B2018/00023; A61B2018/00053; A61B2018/00184; A61B2018/00196; A61B2018/00273; A61B2018/00315; A61B2018/00452; A61B2018/00476; A61B2018/00571; A61B2018/00577; A61B2018/00636; A61B2018/00666; A61B2018/00678; A61B2018/00696; A61B2018/00702; A61B2018/00708; A61B2018/00726; A61B2018/00744; A61B2018/00761; A61B2018/00773; A61B2018/00779; A61B2018/00791; A61B2018/00797; A61B2018/00827; A61B2018/00875; A61B2018/00892; A61B2018/124; A61B2018/1246; A61B2018/1253; A61B2018/126; A61B2018/1405; A61B2018/1425; A61B2018/143; A61B2018/1432; A61B2018/1435; A61B2018/1472; A61B18/16; A61B2018/162; A61B2218/00; A61B2218/001; A61B2218/002; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61M3/00; A61M3/02; A61M3/0279; A61N5/00; A61N5/02; A61N5/04
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
133 words
An ablation treatment apparatus, comprising: a multiple antenna device including a primary antenna with a lumen, a tissue piercing distal end and a longitudinal axis, and a secondary antenna with a tissue piercing distal end, the secondary antenna being positionable in the primary antenna and deployed from the primary antenna with curvature in a lateral direction relative to the longitudinal axis at a selected tissue mass, at least a portion of the distal end of the secondary antenna is constructed to be structurally less rigid than the primary antenna, and the primary antenna is constructed to be rigid enough to be introduced through tissue, the multiple antenna device being configured to be coupled to an energy source; and at least one cable coupling one or both of the antennas to the energy source.
Claim 2
Dependent Claim
133 words
An ablation treatment apparatus, comprising: a multiple antenna device including a primary antenna with a lumen, a tissue piercing distal end and a longitudinal axis, and a secondary antenna with a tissue piercing distal end, the secondary antenna being positionable in the primary antenna and deployed from the primary antenna with curvature in a lateral direction relative to the longitudinal axis at a selected tissue mass, at least a portion of the distal end of the secondary antenna is constructed to be structurally less rigid than the primary antenna, and the primary antenna is constructed to be rigid enough to be introduced through tissue, the multiple antenna device being configured to be coupled to an energy source; and at least one cable coupling one or both of the antennas to the energy source.
Claim 3
Dependent Claim
32 words
The apparatus of claim 1, wherein the primary antenna has an ablation surface with a length that is at least 20% of a length of an ablation surface of the secondary antenna.
Claim 4
Dependent Claim
32 words
The apparatus of claim 1, wherein the primary antenna has an ablation surface with a length that is at least one-third of a length of an ablation surface of the secondary antenna.
Claim 5
Dependent Claim
32 words
The apparatus of claim 1, wherein the primary antenna has an ablation surface with a length that is at least one-half of a length of an ablation surface of the secondary antenna.
Claim 6
Dependent Claim
38 words
The apparatus of claim 1, wherein two secondary electrodes are provided and laterally deployed from the primary antenna, each of the primary and secondary antennas having an ablation surface to create an ablation volume between the ablation surfaces.
Claim 7
Dependent Claim
38 words
The apparatus of claim 1, wherein three secondary electrodes are provided and laterally deployed from the primary antenna, each of the primary and secondary antennas having an ablation surface to create an ablation volume between the ablation surfaces.
Claim 8
Dependent Claim
27 words
The apparatus of claim 1, further comprising: an insulation sleeve positioned in a surrounding relationship around at least a portion of an exterior of the primary antenna.
Claim 9
Dependent Claim
19 words
The apparatus of claim 7, wherein the insulation sleeve is adjustably moveable along an exterior of the primary antenna.
Claim 10
Dependent Claim
27 words
The apparatus of claim 1, further comprising: an insulation sleeve positioned in a surrounding relationship around at least a portion of an exterior of the secondary antenna.
Claim 11
Dependent Claim
19 words
The apparatus of claim 9, wherein the insulation sleeve is adjustably moveable along an exterior of the secondary antenna.
Claim 12
Dependent Claim
22 words
The apparatus of claim 1, further including a ground pad electrode with the primary and secondary antennas operating in a monopolar mode.
Claim 13
Dependent Claim
14 words
The apparatus of claim 1, wherein the primary and secondary antennas are RF antennas.
Claim 14
Dependent Claim
14 words
The apparatus of claim 1, wherein the primary and secondary antennas are microwave antennas.
Claim 15
Dependent Claim
15 words
The apparatus of claim 1, wherein the apparatus is switchable between bipolar and monopolar operation.
Claim 16
Dependent Claim
23 words
The apparatus of claim 1, wherein the primary antenna is hollow and coupled to an infusion medium source to receive an infusion medium.
Claim 17
Independent Claim
159 words
A method for creating an ablation volume in a selected tissue mass, comprising: providing an ablation device with a primary antenna with a tissue piercing distal end, a secondary antenna with a tissue piercing distal end, and an energy source coupled to one or both of the antennas, wherein at least a distal end of the secondary antenna is structurally less rigid than the primary antenna; inserting the primary antenna into the selected tissue mass; positioning the secondary antenna in the primary antenna after the primary antenna has been inserted into the selected tissue mass; advancing the secondary antenna distal end out of the primary antenna lumen and into the selected tissue mass in a lateral direction relative to a longitudinal axis of the primary antenna; delivering electromagnetic energy from one of a primary antenna ablation surface, a secondary antenna ablation surface or both to the selected tissue mass; and creating an ablation volume in the selected tissue mass.
Claim 18
Independent Claim
159 words
A method for creating an ablation volume in a selected tissue mass, comprising: providing an ablation device with a primary antenna with a tissue piercing distal end, a secondary antenna with a tissue piercing distal end, and an energy source coupled to one or both of the antennas, wherein at least a distal end of the secondary antenna is structurally less rigid than the primary antenna; inserting the primary antenna into the selected tissue mass; positioning the secondary antenna in the primary antenna after the primary antenna has been inserted into the selected tissue mass; advancing the secondary antenna distal end out of the primary antenna lumen and into the selected tissue mass in a lateral direction relative to a longitudinal axis of the primary antenna; delivering electromagnetic energy from one of a primary antenna ablation surface, a secondary antenna ablation surface or both to the selected tissue mass; and creating an ablation volume in the selected tissue mass.
Claim 19
Dependent Claim
39 words
The method of claim 16, wherein two secondary antennas, each having an ablation surface, are advanced from the primary antenna, and an ablation volume is created between the two secondary antennas ablation surfaces and the primary electrode ablation surface.
Claim 20
Dependent Claim
21 words
The method of claim 17, wherein the two secondary antennas are advanced out of a distal end of the primary antenna.
Claim 21
Dependent Claim
21 words
The method of claim 17, wherein the two secondary antennas are advanced out of separate ports formed in the primary antenna.
Claim 22
Dependent Claim
20 words
The method of claim 17, wherein the two secondary antennas are advanced from the primary antenna and define a plane.
Claim 23
Dependent Claim
15 words
The method of claim 16, wherein three secondary antennas are advanced from the primary antenna.
Claim 24
Dependent Claim
33 words
The method of claim 21, wherein each of the three secondary antennas and the primary antenna has an ablation surface, and an ablation volume is formed between the ablation surfaces of the antennas.
Claim 25
Dependent Claim
30 words
The method of claim 16, wherein the primary electrode has an ablation surface that is at least equal to 20% or more of an ablation surface of the secondary antenna.
Claim 26
Dependent Claim
30 words
The method of claim 16, wherein the primary electrode has an ablation surface that is at least equal to one-third or more of an ablation surface of the secondary antenna.
Claim 27
Dependent Claim
30 words
The method of claim 16, wherein the primary electrode has an ablation surface that is at least equal to one-half or more of an ablation surface of the secondary antenna.
Claim 28
Dependent Claim
17 words
The method of claim 16, wherein the primary and secondary antennas are operated in a monopolar mode.
Claim 29
Dependent Claim
15 words
The method of claim 16, wherein the ablation device is operated in a bipolar mode.
References Cited (Backward Citations)
US32057A
Cited
US34086A
Cited
US32066A
Cited
DE1007960B
Cited
US3474777A
Cited
US3858586A
Cited
DE2124684A1
Cited
US3834392A
Cited
US4016881A
Cited
US3991770A
Cited
US4011872A
Cited
US4033351A
Cited
US4303636A
Cited
US3987795A
Cited
US4043342A
Cited
FR2283701B3
Cited
US4016886A
Cited
US4026301A
Cited
US4085756A
Cited
US4119102A
Cited
USRE32057E
Cited
USRE32066E
Cited
US4230129A
Cited
US4121592A
Cited
US4074718A
Cited
US4080959A
Cited
US4095602A
Cited
US4140130A
Cited
US4154246A
Cited
US4237898A
Cited
US4346715A
Cited
US4337760A
Cited
US4418692A
Cited
US4289135A
Cited
US4285346A
Cited
US4345588A
Cited
US4269174A
Cited
US4290435A
Cited
US4375220A
Cited
US4532924A
Cited
US4331654A
Cited
US4409993A
Cited
US4565200A
Cited
US4411266A
Cited
US4562838A
Cited
US4461283A
Cited
US4574782A
Cited
US4512762A
Cited
US4583556A
Cited
US5197466A
Cited
US4676258A
Cited
US4524770A
Cited
US4506680A
Cited
US4545368A
Cited
US4662359A
Cited
US4887614A
Cited
US4658819A
Cited
US4601296A
Cited
US4818542A
Cited
US4763671A
Cited
US4586490A
Cited
US4692139A
Cited
US4800899A
Cited
US4652257A
Cited
US4648892A
Cited
US4983159A
Cited
US4838265A
Cited
US4660571A
Cited
US4823793A
Cited
US4690130A
Cited
US4846196A
Cited
US4776086A
Cited
US4709701A
Cited
US4813429A
Cited
US5084001A
Cited
US5365926A
Cited
US5215103A
Cited
US4940064A
Cited
US5397339A
Cited
US4962761A
Cited
US5003991A
Cited
US4823791A
Cited
US4862887A
Cited
US5170789A
Cited
US4825880A
Cited
US4753248A
Cited
US4931047A
Cited
US5015227A
Cited
US4860744A
Cited
US4950267A
Cited
US4907589A
Cited
US4989601A
Cited
US5178620A
Cited
US4881543A
Cited
US5249585A
Cited
EP0462302A1
Cited
US4920978A
Cited
US4947842A
Cited
US4976680A
Cited
US5183455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-21 | 2002-12-21 | 2003-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-21 | 2006-12-21 | 2007-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-21 | 2010-12-21 | 2011-06-22 | $7700.00 | Window Closed / Lapsed |