US6669662B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfusion catheter
Assignee: Abbott Cardiovascular Systems Inc
•
Filing: 2000-12-27
•
Granted: 2003-12-30
•
Expires: 2020-12-27
Abstract
Abstract A perfusion catheter with a shaft having a lumen and a plurality of ports through the shaft. A rotatable core with a core groove is disposed within the lumen. The plurality of ports can be exposed by retraction of the core. The core can be rotated within the shaft.
Inventors
- 👤 William E. Webler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:29
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0068; A61M25/007; A61B; A61B8/00; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61M25/10; A61M2025/1043; A61M2025/1095
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
55 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; a rotatable core disposed within said shaft lumen, said rotatable core including a spring; and a core groove about said rotatable core, said core groove being between turns of said spring.
Claim 2
Dependent Claim
55 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; a rotatable core disposed within said shaft lumen, said rotatable core including a spring; and a core groove about said rotatable core, said core groove being between turns of said spring.
Claim 3
Dependent Claim
15 words
The perfusion catheter of claim 1 wherein said core groove is spiraled about said core.
Claim 4
Dependent Claim
32 words
The perfusion catheter of claim 1 wherein said core groove originates proximal of a proximal-most portion of said plurality of ports when said core occupies a distal-most position within said shaft lumen.
Claim 5
Dependent Claim
40 words
The perfusion catheter of claim 1 wherein said plurality of ports extend through said longitudinally extending shaft at a distal portion thereof, said rotatable core upon rotation to pump a fluid through said distal portion via said plurality of ports.
Claim 6
Dependent Claim
35 words
The perfusion catheter of claim 1 wherein said longitudinally extending shaft is of a structural integrity to protect vasculature from said core when said longitudinally extending shaft is inserted thereinto and said core is rotated.
Claim 7
Dependent Claim
23 words
The perfusion catheter of claim 1 wherein said longitudinally extending shaft is resistant to entanglement with said core as said core is rotated.
Claim 8
Dependent Claim
33 words
The perfusion catheter of claim 1 further including a device disposed on said core, said longitudinally extending shaft being resistant to entanglement with said device as said core and said device are rotated.
Claim 9
Dependent Claim
19 words
The perfusion catheter of claim 1 wherein said shaft comprises a permeable screen material providing said plurality of ports.
Claim 10
Dependent Claim
18 words
The perfusion catheter of claim 1 wherein said spring surrounds an inner spring to comprise a duplex spring.
Claim 11
Dependent Claim
16 words
The perfusion catheter of claim 9 wherein said spring and said inner spring are oppositely wound.
Claim 12
Dependent Claim
17 words
The perfusion catheter of claim 1 further comprising a monorail tip with a guidewire lumen there through.
Claim 13
Dependent Claim
23 words
The perfusion catheter of claim 1 wherein said core has a core length shorter than a shaft length of said longitudinally extending shaft.
Claim 14
Dependent Claim
34 words
The perfusion catheter of claim 12 further comprising: a core proximal portion; a shaft proximal portion; and a stopping mechanism, to prevent said core proximal portion from moving distal of said shaft proximal portion.
Claim 15
Dependent Claim
46 words
The perfusion catheter of claim 13 wherein said core has a distal-most position created by said stopping mechanism, said core terminating at a point up to about 4.0 mm proximal a distal-most portion of said longitudinally extending shaft when said core is at said distal-most position.
Claim 16
Dependent Claim
19 words
The perfusion catheter of claim 1 further comprising a floppy tip disposed at a distal portion of said core.
Claim 17
Dependent Claim
61 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; a rotatable core disposed within said shaft lumen; a core groove about said rotatable core; a floppy tip disposed at a distal portion of said rotatable core; and a floppy tip coil disposed within said floppy tip.
Claim 18
Dependent Claim
61 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; a rotatable core disposed within said shaft lumen; a core groove about said rotatable core; a floppy tip disposed at a distal portion of said rotatable core; and a floppy tip coil disposed within said floppy tip.
Claim 19
Independent Claim
145 words
A method of maintaining circulation across a narrowed vessel wall during catheterization thereat, said method comprising: guiding a shaft of a catheter across said narrowed vessel wall, said shaft having a plurality of ports there through at a distal portion of said shaft and a retractable core disposed within a lumen of said shaft; and retracting said core proximally in order to expose said plurality of ports to allow a flow of blood into a shaft lumen of said shaft, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
Claim 20
Independent Claim
145 words
A method of maintaining circulation across a narrowed vessel wall during catheterization thereat, said method comprising: guiding a shaft of a catheter across said narrowed vessel wall, said shaft having a plurality of ports there through at a distal portion of said shaft and a retractable core disposed within a lumen of said shaft; and retracting said core proximally in order to expose said plurality of ports to allow a flow of blood into a shaft lumen of said shaft, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
Claim 21
Dependent Claim
11 words
A method as in claim 17 further comprising: rotating said core.
Claim 22
Dependent Claim
24 words
A method as in claim 17 wherein said core comprises a stopping mechanism to prevent slippage of entire said core into said shaft lumen.
Claim 23
Independent Claim
122 words
A method of maintaining circulation across narrowed vessel portion during catheterization thereat, said method comprising: guiding a shaft of a catheter across said narrowed vessel portion, said shaft having a plurality of ports there through; and rotating a core within said shaft, said core having a core groove for advancing fluids within a lumen of said shafts, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
Claim 24
Independent Claim
122 words
A method of maintaining circulation across narrowed vessel portion during catheterization thereat, said method comprising: guiding a shaft of a catheter across said narrowed vessel portion, said shaft having a plurality of ports there through; and rotating a core within said shaft, said core having a core groove for advancing fluids within a lumen of said shafts, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a coil disposed within said floppy tip and terminates in a ball.
Claim 25
Dependent Claim
32 words
The method of claim 20 further comprising: spraying a flush within a lumen of said catheter shaft after said guiding; and propelling said flush toward a distal-most portion of said catheter shaft.
Claim 26
Dependent Claim
11 words
The method of claim 21 wherein said rotating provides said propelling.
Claim 27
Dependent Claim
36 words
The method of claim 20 further comprising drawing a flow of blood into a shaft lumen of said shaft across said plurality of ports at a point proximal to said narrowed vessel portion after said guiding.
Claim 28
Dependent Claim
11 words
The method of claim 23 wherein said rotating provides said drawing.
Claim 29
Dependent Claim
26 words
The method of claim 23 further comprising retracting said core to a point proximal of said narrowed vessel portion after said guiding to enhance said drawing.
Claim 30
Dependent Claim
28 words
The method of claim 20 further comprising advancing a flow of blood within a shaft lumen of said shaft distally past said narrowed vessel portion after said guiding.
Claim 31
Dependent Claim
11 words
The method of claim 26 wherein said rotating provides said advancing.
Claim 32
Dependent Claim
31 words
The method of claim 20 further comprising forcing a flow of blood out of a shaft lumen of said shaft at a point distal said narrowed vessel portion after said guiding.
Claim 33
Dependent Claim
11 words
The method of claim 28 wherein said rotating provides said forcing.
Claim 34
Dependent Claim
25 words
The method of claim 20 further comprising agitating air bubbles within a shaft lumen of said shaft to mix with blood within said shaft lumen.
Claim 35
Dependent Claim
11 words
The method of claim 30 wherein said rotating provides said agitating.
Claim 36
Dependent Claim
104 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; and a core disposed within said shaft lumen, said core being at least one of rotatable and retractable, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a floppy tip coil disposed within said floppy tip.
Claim 37
Dependent Claim
104 words
A perfusion catheter comprising: a longitudinally extending shaft having a shaft lumen there through; a plurality of ports extending through said longitudinally extending shaft; and a core disposed within said shaft lumen, said core being at least one of rotatable and retractable, wherein said core has a shorter length than said shaft lumen and said core includes a floppy tip disposed at a distal portion of said core, such that said core does not completely block said plurality of ports when said core is advanced into said shaft lumen, and wherein said floppy tip comprises a floppy tip coil disposed within said floppy tip.
Claim 38
Dependent Claim
14 words
The perfusion catheter of claim 32 wherein said core is rotatable and also retractable.
Claim 39
Dependent Claim
21 words
The perfusion catheter of claim 33 wherein said core, when retracted, exposes at least a portion of said plurality of ports.
Claim 40
Dependent Claim
39 words
The perfusion catheter of claim 32 wherein said plurality of ports extend through said longitudinally extending shaft at a distal portion thereof, said core upon rotation to pump a fluid through said distal portion via said plurality of ports.
Claim 41
Dependent Claim
35 words
The perfusion catheter of claim 32 wherein said longitudinally extending shaft is of a structural integrity to protect vasculature from said core when said longitudinally extending shaft is inserted thereinto and said core is rotated.
Claim 42
Dependent Claim
23 words
The perfusion catheter of claim 32 wherein said longitudinally extending shaft is resistant to entanglement with said core as said core is rotated.
Claim 43
Dependent Claim
33 words
The perfusion catheter of claim 32 further including a device disposed on said core, said longitudinally extending shaft being resistant to entanglement with said device as said core and said device are rotated.
Claim 44
Dependent Claim
19 words
The perfusion catheter of claim 32 wherein said shaft comprises a permeable screen material providing said plurality of ports.
Claim 45
Dependent Claim
16 words
The perfusion catheter of claim 32 further comprising a tip with a guidewire lumen there through.
Claim 46
Dependent Claim
34 words
The perfusion catheter of claim 32 further comprising: a core proximal portion; a shaft proximal portion; and a stopping mechanism, to prevent said core proximal portion from moving distal of said shaft proximal portion.
Claim 47
Dependent Claim
46 words
The perfusion catheter of claim 41 wherein said core has a distal-most position created by said stopping mechanism, said core terminating at a point up to about 4.0 mm proximal a distal-most portion of said longitudinally extending shaft when said core is at said distal-most position.
Claim 48
Dependent Claim
14 words
The perfusion catheter of claim 32 wherein said floppy tip terminates in a ball.
References Cited (Backward Citations)
US4661094A
Cited
US4790315A
Cited
US4771777A
Cited
US4887605A
Cited
US5115814A
Cited
US5263963A
Cited
US5516336A
Cited
US5092844A
Cited
US5163910A
Cited
US5137513A
Cited
US5527292A
Cited
US5193546A
Cited
US5195971A
Cited
US5356388A
Cited
US5667521A
Cited
US5716410A
Cited
US5318535A
Cited
US5571089A
Cited
US5409455A
Cited
US5599307A
Cited
US5370617A
Cited
US5411016A
Cited
US5591129A
Cited
US5891090A
Cited
US5501667A
Cited
US5772632A
Cited
US5497782A
Cited
US5507795A
Cited
US5573508A
Cited
US5573509A
Cited
US5632754A
Cited
EP0761252A1
Cited
US6027460A
Cited
US6102903A
Cited
US5855546A
Cited
US5807328A
Cited
US5746709A
Cited
US5749852A
Cited
US5782740A
Cited
US6217595B1
Cited
US5830181A
Cited
US5833688A
Cited
US6110097A
Cited
US5989218A
Cited
US20020032457A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-12-29 | 2007-06-30 | 2007-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-12-29 | 2011-06-30 | 2011-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-12-29 | 2015-06-30 | 2015-12-30 | $7700.00 | Window Closed / Lapsed |