Patent US6767345B2 successfully refreshed from Google Patents.
US6767345B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partial aortic occlusion devices and methods for renal and coronary perfusion augmentation
Assignee: Zoll Circulation Inc
•
Filing: 2002-11-08
•
Granted: 2004-07-27
•
Expires: 2022-11-08
Abstract
Abstract A method for increasing renal and/or coronary blood flow. A catheter is inserted into the descending aorta. An expandable member on a distal region of the catheter is positioned in the aorta downstream from the takeoff of a renal artery or downstream from a coronary ostium. The expandable member is expanded to partially occlude blood flow in the aorta. Blood pressure in the proximal aorta increases, blood pressure in the distal aorta decreases, and renal and/or coronary blood flow increases by this technique. Blood pressure in the proximal aorta may be measured to monitor the effects of the procedure. The expansion of the expandable member may be adjusted based on the measured blood pressure.
Inventors
- 👤 Jon P. St. Germain
- 👤 Denise R. Barbut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:08
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12022; A61B17/12027; A61B17/1204; A61B17/12045; A61B17/12036; A61B17/12099; A61B17/12109; A61B17/12131; A61B17/12136; A61B17/1214; A61B17/12145; A61B17/12181; A61B17/1219; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; A61B5/40; A61B5/4076; A61B6/00; A61B6/48; A61B6/481; A61F; A61F7/00; A61F7/12; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/003; A61M25/0067; A61M25/0068; A61M25/008; A61M25/0082; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0147; A61M25/10; A61M25/1011; A61B17/22; A61B2017/22051; A61B2017/22054; A61B90/00; A61B90/39; A61B2090/3966; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61F2002/068; A61F2007/126; A61M2025/0001; A61M2025/0002; A61M2025/0034; A61M2025/0073; A61M2025/0081; A61M2025/1043; A61M2025/1052; A61M2210/00; A61M2210/12; A61M2210/127; A61M2230/00; A61M2230/005; A61M2230/30; A61M25/0032; A61M25/0069; A61M25/0074; A61M25/06; A61M25/0662
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A method for increasing coronary blood flow, comprising the steps of: inserting a catheter into the descending aorta, the catheter having a proximal region, a distal region, and an expandable member mounted on the distal region; locating the expandable member in the aorta downstream from a coronary ostium; expanding the expandable member to partially occlude blood flow in the aorta during systole and diastole, wherein blood pressure in the proximal aorta increases, blood pressure in the distal aorta decreases, and coronary blood flow increases; measuring blood pressure in the proximal aorta; and adjusting the expansion of the expandable member based on the measured blood pressure.
Claim 2
Independent Claim
105 words
A method for increasing coronary blood flow, comprising the steps of: inserting a catheter into the descending aorta, the catheter having a proximal region, a distal region, and an expandable member mounted on the distal region; locating the expandable member in the aorta downstream from a coronary ostium; expanding the expandable member to partially occlude blood flow in the aorta during systole and diastole, wherein blood pressure in the proximal aorta increases, blood pressure in the distal aorta decreases, and coronary blood flow increases; measuring blood pressure in the proximal aorta; and adjusting the expansion of the expandable member based on the measured blood pressure.
Claim 3
Dependent Claim
17 words
The method of claim 1 , wherein a lumen of the catheter is adapted for blood flow.
Claim 4
Dependent Claim
20 words
The method of claim 2 , wherein the catheter further comprises a second lumen adapted to receive a medical instrument.
Claim 5
Dependent Claim
30 words
The method of claim 1 , further comprising the step of advancing a medical instrument through a lumen of the catheter and into an artery that branches from the aorta.
Claim 6
Dependent Claim
61 words
The method of claim 4 , wherein the medical instrument is selected from the group consisting of a guiding catheter, an infusion catheter, an angioplasty catheter, a laser catheter, an angiography catheter, a therapeutic ultrasound catheter, a hypothermia catheter, a stent catheter, an imaging catheter, a perfusion catheter, an atherectomy catheter, an occlusion catheter, an EP catheter, and an aspiration catheter.
Claim 7
Dependent Claim
37 words
The method of claim 1 , wherein the step of expanding the expandable member comprises reducing the luminal diameter of the expandable member to reduce blood flow, while an outer diameter of the expandable member remains constant.
Claim 8
Dependent Claim
22 words
The method of claim 1 , wherein the step of expanding the expandable member includes maintaining the expanded expandable member during systole.
Claim 9
Dependent Claim
28 words
The method of claim 1 , wherein the expandable member comprises a toroidal balloon, and wherein the step of expanding the expandable member comprises inflating the expandable member.
Claim 10
Dependent Claim
27 words
The method of claim 1 , wherein the expandable member comprises a balloon, and wherein the step of expanding the expandable member comprises inflating the expandable member.
References Cited (Backward Citations)
US3692018A
Cited
US3634924A
Cited
US3720200A
Cited
US4368739A
Cited
US4531936A
Cited
US4798588A
Cited
US4601706A
Cited
US4712566A
Cited
US4697574A
Cited
US4744863A
Cited
US4853669A
Cited
US4996082A
Cited
US4701160A
Cited
US4941473A
Cited
US4723549A
Cited
US4777951A
Cited
US5085223A
Cited
USRE35648E
Cited
US5820593A
Cited
US5221258A
Cited
US5711754A
Cited
US5814016A
Cited
US5702368A
Cited
US5195942A
Cited
US5334142A
Cited
US5449342A
Cited
US5330498A
Cited
US5392117A
Cited
US5202939A
Cited
US5599329A
Cited
US5330451A
Cited
US5855210A
Cited
US5531776A
Cited
US5458574A
Cited
US5437633A
Cited
US5486192A
Cited
US5716386A
Cited
US5678570A
Cited
US5827237A
Cited
US6010522A
Cited
US5662671A
Cited
US6296654B1
Cited
WO1999015227A1
Cited
WO1999030765A1
Cited
WO1999058174A2
Cited
US5891012A
Cited
US6165199A
Cited
US6161547A
Cited
US6146370A
Cited
US6190304B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-07-27 | 2008-01-26 | 2008-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-07-27 | 2012-01-26 | 2012-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-07-27 | 2016-01-26 | 2016-07-27 | $7700.00 | Window Closed / Lapsed |