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US5741225A
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Method for treating the prostate
Assignee: Venture Banking Group
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Filing: 1996-01-23
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Granted: 1998-04-21
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Expires: 2016-01-23
Abstract
Abstract A method of medical treatment of the prostate provides an ablation apparatus. The ablation apparatus includes a cannula, an electrode at least partially positioned in the cannula, and an insulation sleeve positioned in a surrounding relationship to at least a portion of the electrode. A distal end of the cannula is positioned in a rectum of a patient. The distal end of the cannula is advanced through a rectal wall of the rectum. A distal end of the electrode if advanced from the cannula into the prostate. Electromagnetic energy is delivered from the electrode to the prostate and an ablation zone is created in the prostate.
Inventors
- 👤 Ronald G. Lax
- 👤 Stuart D. Edwards
- 👤 Hugh R. Sharkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:53
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/04; A61B18/12; A61B18/14; A61B18/1477; A61B18/1815; A61N; A61N1/00; A61N1/02; A61N1/04; A61N1/06; A61N5/00; A61N5/02; A61N5/04; A61N5/045; A61B18/1442; A61B18/1482; A61B17/00; A61B2017/00017; A61B2017/00022; A61B2017/00106; A61B17/00234; A61B2017/00238; A61B2017/00274; A61B2017/00292; A61B2017/003; A61B2017/00831; A61B2017/00867; A61B2018/00005; A61B2018/00011; A61B2018/00053; A61B2018/00059; A61B2018/00071; A61B2018/00083; A61B2018/00089; A61B2018/00095; A61B2018/00214; A61B2018/0022; A61B2018/00315; A61B2018/00547; A61B2018/00571; A61B2018/00577; A61B2018/00636; A61B2018/00666; A61B2018/00678; A61B2018/00696; A61B2018/00702; A61B2018/00726; A61B2018/00744; A61B2018/00761; A61B2018/00773; A61B2018/00791; A61B2018/00797; A61B2018/00821; A61B2018/00886; A61B2018/0091; A61B2018/00916; A61B2018/0094; A61B2018/00946; A61B18/1206; A61B2018/1246; A61B2018/1253; A61B2018/126; A61B2018/128; A61B90/00; A61B90/36; A61B90/361; A61B2090/3614; A61B90/37; A61B2090/378; A61B2090/3782; A61B90/39; A61B2090/3925; A61M; A61M25/00; A61M25/01; A61M2025/018; A61M25/0021; A61M25/0041; A61M25/0067; A61M25/0068; A61M25/0082
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
99 words
A method of medical treatment of the prostate, comprising: providing an ablation apparatus including a cannula, an electrode at least partially positioned in the cannula, and an insulation sleeve positioned in a surrounding relationship to at least a portion of the electrode; positioning a distal end of the cannula in a rectum of a patient; advancing the distal end of the cannula through a rectal wall of the rectum; advancing a distal end of the electrode from the cannula into the prostate; delivering electromagnetic energy from the electrode to the prostate; and creating an ablation zone in the prostate.
Claim 2
Independent Claim
99 words
A method of medical treatment of the prostate, comprising: providing an ablation apparatus including a cannula, an electrode at least partially positioned in the cannula, and an insulation sleeve positioned in a surrounding relationship to at least a portion of the electrode; positioning a distal end of the cannula in a rectum of a patient; advancing the distal end of the cannula through a rectal wall of the rectum; advancing a distal end of the electrode from the cannula into the prostate; delivering electromagnetic energy from the electrode to the prostate; and creating an ablation zone in the prostate.
Claim 3
Dependent Claim
16 words
The method of claim 1, wherein the electrode and insulation sleeve are advanced into the prostate.
Claim 4
Dependent Claim
26 words
The method of claim 2, wherein a position of the insulation sleeve is adjusted after the electrode and insulation sleeve have been advanced into the prostate.
Claim 5
Dependent Claim
37 words
The method of claim 2, wherein a distal end of the insulation sleeve is advanced in a direction away from a distal end of the electrode after the electrode and insulation sleeve are advanced into the prostate.
Claim 6
Dependent Claim
13 words
The method of claim 1, wherein the cannula has a sharpened distal end.
Claim 7
Dependent Claim
16 words
The method of claim 1, wherein the electrode is electromagnetically coupled to an RF energy source.
Claim 8
Dependent Claim
19 words
The method of claim 1, wherein the electrode has at least a section made of a shaped memory metal.
Claim 9
Dependent Claim
19 words
The method of claim 1, wherein a distal end of the electrode is made of a shaped memory metal.
Claim 10
Dependent Claim
14 words
The method of claim 1, wherein the ablation apparatus further comprises: a visualization scope.
Claim 11
Independent Claim
102 words
A method of medical treatment of the prostate, comprising: providing an ablation apparatus including a cannula, a stylet and an electrode at least partially positioned in the stylet, and an insulation sleeve positioned in a surrounding relationship to at least a portion of the electrode; positioning a distal end of the cannula in a rectum of a patient; advancing a distal end of the stylet through a rectal wall of the rectum; advancing a distal end of the electrode from the stylet into the prostate; deliverying electromagnetic energy from the electrode to the prostate; and creating an ablation zone in the prostate.
Claim 12
Independent Claim
102 words
A method of medical treatment of the prostate, comprising: providing an ablation apparatus including a cannula, a stylet and an electrode at least partially positioned in the stylet, and an insulation sleeve positioned in a surrounding relationship to at least a portion of the electrode; positioning a distal end of the cannula in a rectum of a patient; advancing a distal end of the stylet through a rectal wall of the rectum; advancing a distal end of the electrode from the stylet into the prostate; deliverying electromagnetic energy from the electrode to the prostate; and creating an ablation zone in the prostate.
Claim 13
Dependent Claim
16 words
The method of claim 10, wherein the electrode and insulation sleeve are advanced into the prostate.
Claim 14
Dependent Claim
26 words
The method of claim 11, wherein a position of the insulation sleeve is adjusted after the electrode and insulation sleeve have been advanced into the prostate.
Claim 15
Dependent Claim
37 words
The method of claim 11, wherein a distal end of the insulation sleeve is advanced in a direction away from a distal end of the electrode after the electrode and insulation sleeve are advanced into the prostate.
Claim 16
Dependent Claim
13 words
The method of claim 10, wherein the cannula has a sharpened distal end.
Claim 17
Dependent Claim
13 words
The method of claim 10, wherein the stylet has a sharpened distal end.
Claim 18
Dependent Claim
16 words
The method of claim 10, wherein the electrode is electromagnetically coupled to an RF energy source.
Claim 19
Dependent Claim
19 words
The method of claim 10, wherein the electrode has at least a section made of a shaped memory metal.
Claim 20
Dependent Claim
19 words
The method of claim 10, wherein a distal end of the electrode is made of a shaped memory metal.
Claim 21
Dependent Claim
14 words
The method of claim 10, wherein the ablation apparatus further comprises: a visualization scope.
References Cited (Backward Citations)
US5421819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-04-20 | 2001-10-20 | 2002-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-04-20 | 2005-10-20 | 2006-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-04-20 | 2009-10-20 | 2010-04-21 | $7700.00 | Window Closed / Lapsed |