US5800450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Neovascularization catheter
Assignee: InterVentional Technologies Inc
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Filing: 1996-10-03
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Granted: 1998-09-01
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Expires: 2016-10-03
Abstract
Abstract The present invention is a device and a method for boring a perfusion channel into the myocardial tissue of a patient. Structurally, the present invention includes a positioning catheter and a cutting catheter. The positioning catheter is formed with an inflation lumen and a deployment lumen and has an inflatable balloon mounted at its distal end. The cutting catheter has a sharpened distal end and is advanceable through the deployment lumen of the positioning catheter. Advancement of the cutting catheter through the deployment lumen causes the distal end of the cutting catheter to be directed radially outward from the positioning catheter. In use, the positioning catheter is positioned within a target vessel. The inflatable balloon is then expanded to anchor the distal end of the positioning catheter. The cutting catheter is then advanced through the deployment lumen, projecting the distal end of the cutting catheter radially outward from the positioning catheter, boring a perfusion channel in the tissue adjacent to the target vessel.
Inventors
- 👤 Banning Gray Lary
- 👤 Herbert R. Radisch, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:21
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320725; A61B17/320016; A61B17/32002; A61B17/320783; A61B17/3209; A61B17/34; A61B17/3478; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/00247; A61B2017/00252; A61B17/22; A61B2017/22038; A61B2017/22042; A61B2017/22044; A61B2017/22051; A61B2017/22065; A61B2017/22069; A61B2017/22072; A61B18/00; A61B2018/00315; A61B2018/00345; A61B2018/00351; A61B2018/00392
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
142 words
A device for boring a perfusion channel from a vessel into the cardiac muscle of a patient which comprises: a positioning catheter having a distal end and a proximal end, said positioning catheter formed with a deployment lumen extending from said proximal end of said positioning catheter and terminating at an orifice positioned near said distal end of said positioning catheter, said deployment lumen at said orifice being oriented radially outward from said positioning catheter; anchoring means attached to said distal end of said positioning catheter for selectively anchoring said positioning catheter in said vessel; and a cutting catheter having a distal end and a proximal end, said cutting catheter slidingly insertable through said deployment lumen of said positioning catheter for selective projection of said distal end of cutting catheter from said orifice of said positioning catheter to bore said perfusion channel.
Claim 2
Independent Claim
142 words
A device for boring a perfusion channel from a vessel into the cardiac muscle of a patient which comprises: a positioning catheter having a distal end and a proximal end, said positioning catheter formed with a deployment lumen extending from said proximal end of said positioning catheter and terminating at an orifice positioned near said distal end of said positioning catheter, said deployment lumen at said orifice being oriented radially outward from said positioning catheter; anchoring means attached to said distal end of said positioning catheter for selectively anchoring said positioning catheter in said vessel; and a cutting catheter having a distal end and a proximal end, said cutting catheter slidingly insertable through said deployment lumen of said positioning catheter for selective projection of said distal end of cutting catheter from said orifice of said positioning catheter to bore said perfusion channel.
Claim 3
Dependent Claim
55 words
A device as recited in claim 1 wherein said positioning catheter is formed with an inflation lumen and wherein said anchoring means includes a balloon attached to said distal end of said positioning catheter and connected in fluid communication with said inflation lumen, said balloon inflatable for selectively anchoring said positioning catheter in said vessel.
Claim 4
Dependent Claim
28 words
A device as recited in claim 1 wherein said distal end of said cutting catheter is pointed to facilitate passage of said cutting catheter through said cardiac muscle.
Claim 5
Dependent Claim
49 words
A device as recited in claim 3 further comprising a plurality of blades for incision of said cardiac muscle during boring of said perfusion channel, said blades being attached to project radially from the distal end of said cutting catheter and aligned substantially in parallel with said cutting catheter.
Claim 6
Dependent Claim
40 words
A device as recited in claim 4 wherein each said blade is movable between a first position wherein said blade is substantially contained within said cutting catheter and a second position wherein said blade extends radially from said cutting catheter.
Claim 7
Dependent Claim
19 words
A device as recited in claim 5 wherein each said blade is biased to preferentially adopt said second position.
Claim 8
Dependent Claim
24 words
A device as recited in claim 1 wherein said orifice is shaped to project said cutting catheter in a radially outward and distal direction.
Claim 9
Dependent Claim
34 words
A device as recited in claim 1 wherein said positioning catheter is dimensioned to allow a stent to be deployed by advancing said stent through said deployment lumen to be emitted through said orifice.
Claim 10
Dependent Claim
34 words
A device as recited in claim 1 further comprising a cutting guidewire having a sharpened distal end and wherein said cutting catheter is formed with a lumen for advancement of said cutting guidewire therethrough.
Claim 11
Independent Claim
115 words
A device for boring a perfusion channel in the cardiac muscle of a patient which comprises: a positioning catheter insertable into a cardiac vessel of said patient, said positioning catheter having a distal end and a proximal end; anchoring means attached to said distal end of said positioning catheter for holding said distal end of said position catheter at a selectable location in said vessel; and a cutting catheter having a distal end and a proximal end; and guide means formed in said positioning catheter for receiving said cutting catheter therethrough and directing said distal end of said cutting catheter radially outward from said positioning catheter to bore said perfusion channel into the cardiac muscle.
Claim 12
Independent Claim
115 words
A device for boring a perfusion channel in the cardiac muscle of a patient which comprises: a positioning catheter insertable into a cardiac vessel of said patient, said positioning catheter having a distal end and a proximal end; anchoring means attached to said distal end of said positioning catheter for holding said distal end of said position catheter at a selectable location in said vessel; and a cutting catheter having a distal end and a proximal end; and guide means formed in said positioning catheter for receiving said cutting catheter therethrough and directing said distal end of said cutting catheter radially outward from said positioning catheter to bore said perfusion channel into the cardiac muscle.
Claim 13
Dependent Claim
28 words
A device as recited in claim 10 wherein said distal end of said cutting catheter is pointed to facilitate passage of said cutting catheter through said cardiac muscle.
Claim 14
Dependent Claim
49 words
A device as recited in claim 11 further comprising a plurality of blades for incision of said cardiac muscle during boring of said perfusion channel, said blades being attached to project radially from said distal end of said cutting catheter and aligned substantially in parallel with said cutting catheter.
Claim 15
Dependent Claim
40 words
A device as recited in claim 12 wherein each said blade is movable between a first position wherein said blade is substantially contained within said cutting catheter and a second position wherein said blade extends radially from said cutting catheter.
Claim 16
Dependent Claim
19 words
A device as recited in claim 13 wherein each said blade is biased to preferentially adopt said second position.
Claim 17
Dependent Claim
62 words
A device as recited in claim 10 wherein said anchoring means comprises a balloon, and wherein said positioning catheter is formed to surround an inflation lumen, said balloon attached to said distal end of said positioning catheter and connected in fluid communication with said inflation lumen of said positioning catheter, said balloon inflatable to selectively anchor said positioning catheter in said vessel.
Claim 18
Dependent Claim
119 words
A device as recited in claim 10 wherein said positioning catheter is formed to surround an actuator lumen and wherein said anchoring means comprises: a cylindrical sleeve, said sleeve having a distal end and a proximal end, said sleeve being expandable by compressive movement of said distal end of said cylindrical sleeve towards said proximal end of said cylindrical sleeve; and an actuator wire attached to said distal end of said cylindrical sleeve and extending through said positioning catheter, said actuator wire translationally movable within said positioning catheter to move said distal end of said cylindrical sleeve towards said proximal end of said cylindrical sleeve to selectively expand said cylindrical sleeve and anchor said positioning catheter in said vessel.
Claim 19
Dependent Claim
17 words
A device as recited in claim 16 wherein said cylindrical sleeve is fabricated from a wire mesh.
Claim 20
Dependent Claim
25 words
A device as recited in claim 10 wherein said guide means is shaped to direct said cutting catheter in a radially outward and distal direction.
Claim 21
Dependent Claim
70 words
A device as recited in claim 10 wherein said guide means comprises a deployment lumen extending between said proximal end of said positioning catheter and an orifice positioned near said distal end of said positioning catheter, said orifice oriented radially outward from said positioning catheter, said cutting catheter advanceable through said deployment lumen, said distal end of said cutting catheter directed radially outward from said positioning catheter by said orifice.
Claim 22
Dependent Claim
34 words
A device as recited in claim 19 wherein said positioning catheter is dimensioned to allow a stent to be deployed by advancing said stent through said deployment lumen to be emitted through said orifice.
Claim 23
Dependent Claim
34 words
A device as recited in claim 10 further comprising a cutting guidewire having a sharpened distal end and wherein said cutting catheter is formed with a lumen for advancement of said cutting guidewire therethrough.
Claim 24
Independent Claim
220 words
A method for boring a perfusion channel in the cardiac muscle of a patient which comprises the steps of: providing a device which comprises a positioning catheter having a distal end and a proximal end, said positioning catheter formed to surround an inflation lumen extending between said distal end and said proximal end of said positioning catheter, said positioning catheter also formed to surround a deployment lumen, said deployment lumen extending between said proximal end of said positioning catheter and an orifice positioned near said distal end of said positioning catheter, said orifice oriented radially outward from said positioning catheter, a balloon attached to said distal end of said positioning catheter and connected in fluid communication with said inflation lumen of said positioning catheter, and a cutting catheter having a distal end and a proximal end, said cutting catheter slidingly insertable through said deployment lumen of said positioning catheter for selective projection of said distal end of cutting catheter from said orifice of said positioning catheter; advancing said device into a vessel within the heart of a patient; inflating said balloon to anchor said distal end of said positioning catheter; and advancing said cutting catheter through said deployment lumen to project said distal end of said cutting catheter through said orifice to bore a perfusion channel in said cardiac muscle.
Claim 25
Independent Claim
220 words
A method for boring a perfusion channel in the cardiac muscle of a patient which comprises the steps of: providing a device which comprises a positioning catheter having a distal end and a proximal end, said positioning catheter formed to surround an inflation lumen extending between said distal end and said proximal end of said positioning catheter, said positioning catheter also formed to surround a deployment lumen, said deployment lumen extending between said proximal end of said positioning catheter and an orifice positioned near said distal end of said positioning catheter, said orifice oriented radially outward from said positioning catheter, a balloon attached to said distal end of said positioning catheter and connected in fluid communication with said inflation lumen of said positioning catheter, and a cutting catheter having a distal end and a proximal end, said cutting catheter slidingly insertable through said deployment lumen of said positioning catheter for selective projection of said distal end of cutting catheter from said orifice of said positioning catheter; advancing said device into a vessel within the heart of a patient; inflating said balloon to anchor said distal end of said positioning catheter; and advancing said cutting catheter through said deployment lumen to project said distal end of said cutting catheter through said orifice to bore a perfusion channel in said cardiac muscle.
Claim 26
Dependent Claim
35 words
A method as recited in claim 22 further comprising the steps of: removing said cutting catheter from said deployment catheter; and advancing a vascular stent through said deployment catheter to be emitted at said orifice.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |