US5928229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tumor ablation apparatus
Assignee: Angiodynamics Inc
•
Filing: 1997-10-30
•
Granted: 1999-07-27
•
Expires: 2017-10-30
Abstract
Abstract An ablation apparatus has a multiple antenna device with a primary antenna and a secondary antenna positionable in a lumen of the primary antenna. The secondary antenna is at least partially deployable from the primary antenna in a lateral direction relative to a longitudinal axis of the primary antenna with at least one radius of curvature. A distal end of the primary antenna is sufficiently sharp to pierce tissue. The primary and secondary antennas are configured to provide a selectable geometric ablation of a selected tissue mass. An insulation sleeve is positioned on an exterior of the primary antenna. One or more cables are coupled to the multiple antenna device.
Inventors
- 👤 Edward J. Gough
- 👤 Alan A. Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
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: 26
Claim 1
Independent Claim
105 words
An ablation treatment apparatus, comprising: a multiple antenna device including a primary antenna with a longitudinal axis, and a secondary antenna positionable in a lumen of the primary antenna and deployable at least partially in a lateral direction relative to the longitudinal axis with at least one radius of curvature, wherein a distal end of the primary antenna is sufficiently sharp to pierce tissue, and the primary and secondary antennas are configured to provide a selectable geometric ablation of a selected tissue mass; an insulation sleeve positioned on an exterior of the primary antenna; and one or more cables coupled to the multiple antenna device.
Claim 2
Dependent Claim
105 words
An ablation treatment apparatus, comprising: a multiple antenna device including a primary antenna with a longitudinal axis, and a secondary antenna positionable in a lumen of the primary antenna and deployable at least partially in a lateral direction relative to the longitudinal axis with at least one radius of curvature, wherein a distal end of the primary antenna is sufficiently sharp to pierce tissue, and the primary and secondary antennas are configured to provide a selectable geometric ablation of a selected tissue mass; an insulation sleeve positioned on an exterior of the primary antenna; and one or more cables coupled to the multiple antenna device.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1, wherein the primary and secondary antennas are RF antennas.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1, wherein the primary and secondary antennas are microwave antennas.
Claim 5
Dependent Claim
30 words
The apparatus of claim 1, wherein the multiple antenna device includes at least two secondary antennas which are each independently laterally deployed along a different point along the longitudinal axis.
Claim 6
Dependent Claim
37 words
The apparatus of claim 1, wherein the multiple antenna device includes a number of secondary antennas that are all at least partially retractable into the primary antenna following an ablation and permit repositioning of the primary antenna.
Claim 7
Dependent Claim
31 words
The apparatus of claim 5, wherein the primary antenna is capable of rotational movement about its longitudinal axis following retraction of the secondary antennas into the primary antenna following an ablation.
Claim 8
Dependent Claim
18 words
The apparatus of claim 2, wherein the apparatus is configured to be switched between bipolar and monopolar operation.
Claim 9
Dependent Claim
17 words
The apparatus of claim 1, wherein the apparatus includes two secondary antennas positioned in the same plane.
Claim 10
Dependent Claim
23 words
The apparatus of claim 1, wherein the apparatus includes two secondary antennas that are deployed from the primary antenna in two different planes.
Claim 11
Dependent Claim
16 words
The apparatus of claim 2, wherein the apparatus is configured to operate in a monopolar mode.
Claim 12
Dependent Claim
16 words
The apparatus of claim 2, wherein the apparatus is configured to operate in a bipolar mode.
Claim 13
Dependent Claim
38 words
The apparatus of claim 1, wherein at least one of the primary or secondary antennas is hollow and adapted to receive an infusion medium from an infusion source to introduce the infusion medium into a selected tissue mass.
Claim 14
Dependent Claim
13 words
The apparatus of claim 12, wherein the infusion medium is a therapeutic agent.
Claim 15
Dependent Claim
14 words
The apparatus of claim 12, wherein the infusion medium is a conductivity enhancement medium.
Claim 16
Dependent Claim
13 words
The apparatus of claim 12, wherein the infusion medium includes a chemotherapeutic agent.
Claim 17
Dependent Claim
68 words
The apparatus of claim 1, further comprising: an energy source; one or more sensors coupled to the energy source and positioned at one of an interior or an exterior of the primary or secondary antennas to detect one of impedance or temperature; and a sensor feedback apparatus coupled to the sensors for maintaining a tissue adjacent to one of the primary or secondary antennas at a desired temperature.
Claim 18
Dependent Claim
60 words
The apparatus of claim 1, further comprising: one or more sensors positioned at one of an interior or an exterior of the primary or secondary antennas to detect one of impedance or temperature; and resources connected with the sensors, the antennas and an energy source, the resources providing an output for delivering and maintaining a selected energy at the antennas.
Claim 19
Dependent Claim
25 words
The apparatus of claim 17, wherein the resources provide an output that maintains a selected energy at the antennas for a selected length of time.
Claim 20
Dependent Claim
29 words
The apparatus of claim 17, wherein each of the primary and secondary antennas is independently connected to the resources, and the resources generate an independent output for each antenna.
Claim 21
Dependent Claim
34 words
The apparatus of claim 1, wherein the primary antenna is hollow and includes at least one aperture formed along the longitudinal axis of the primary antenna to laterally deploy at least one secondary antenna.
Claim 22
Dependent Claim
43 words
The apparatus of claim 1, wherein the primary antenna is hollow and includes first and second apertures formed along the longitudinal axis of the primary antenna to laterally deploy a first and a second secondary antenna out of the first and second apertures.
Claim 23
Dependent Claim
21 words
The apparatus of claim 1, further comprising: a temperature sensor coupled to one of the primary antenna or the secondary antenna.
Claim 24
Dependent Claim
14 words
The apparatus of claim 1, wherein the secondary antenna is configured to measure impedance.
Claim 25
Dependent Claim
16 words
The apparatus of claim 1, further comprising: an impedance measurement device advanceable from the primary antenna.
Claim 26
Dependent Claim
34 words
The apparatus of claim 1, wherein the insulation sleeve is in a surrounding relationship to the primary antenna, and a distal end of the insulation sleeve includes an aperture for introducing the secondary antenna.
References Cited (Backward Citations)
US32066A
Cited
US34086A
Cited
US32057A
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
US4411266A
Cited
US4565200A
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
US5397339A
Cited
US5365926A
Cited
US4940064A
Cited
US5215103A
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
EP0462302A1
Cited
US5249585A
Cited
US4920978A
Cited
US4947842A
Cited
US5183455A
Cited
US4976680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-07-26 | 2003-01-25 | 2003-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-26 | 2007-01-25 | 2007-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-26 | 2011-01-25 | 2011-07-27 | $7700.00 | Window Closed / Lapsed |