§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US6110097A Expired / Lapsed US ⏱️ 0.0 years remaining

Perfusion balloon catheter with radioactive source

Assignee: Boston Scientific Scimed Inc
•
Filing: 1997-03-06
•
Granted: 2000-08-29
•
Expires: 2017-03-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A device for irradiating human vessel interior walls including a perfusion balloon catheter having a radioactive perfusion tube affixed therein. Preferably, the balloon is helical, having adjacent helical strand windings closely spaced in contact upon inflation to minimize trapped blood and reduce attenuation. The perfusion tube can be made radioactive by inclusion of a helical, radioactive metal coil in the perfusion tube wall. In use, the catheter can be advanced over a guide wire to a stenosis, inflated to dilate the site, with beta radiation from the coil passing through the device to the vessel walls, relatively unhindered by blood.

Inventors

  • 👤 Roger N. Hastings
  • 👤 Michael J. Urick

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 09:39
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/10; A61N5/1001; A61N5/1002; A61M; A61M25/00; A61M25/0043; A61M2025/0063; A61N2005/1003; A61N2005/1004

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 86 words
A device for irradiating vessel walls comprising: an elongate tubular member having a proximal portion and a distal portion, said tubular member including an inflation lumen extending the length thereof; an a perfusion head attached to said elongate member distal portion, said perfusion head including an inflatable balloon in fluid communication with said inflation lumen, said perfusion head having a perfusion tube forming a perfusion lumen extending longitudinally through said balloon, said perfusion tube, at least in part, containing a radiation emitting material fixedly disposed thereon.
Claim 2
Independent Claim 86 words
A device for irradiating vessel walls comprising: an elongate tubular member having a proximal portion and a distal portion, said tubular member including an inflation lumen extending the length thereof; an a perfusion head attached to said elongate member distal portion, said perfusion head including an inflatable balloon in fluid communication with said inflation lumen, said perfusion head having a perfusion tube forming a perfusion lumen extending longitudinally through said balloon, said perfusion tube, at least in part, containing a radiation emitting material fixedly disposed thereon.
Claim 3
Dependent Claim 31 words
A device as recited in claim 1, wherein said perfusion tube includes a coiled member affixed within an extending through said balloon to support said perfusion lumen walls during balloon inflation.
Claim 4
Dependent Claim 17 words
A device as recited in claim 2, wherein said coiled tubular member includes a radiation emitting material.
Claim 5
Dependent Claim 16 words
A device as recited in claim 3, wherein said coiled tubular member is formed of metal.
Claim 6
Dependent Claim 27 words
A device as recited in claim 2, wherein said inflatable balloon is formed of a tubular member wrapped around said perfusion tube to form multiple adjacent windings.
Claim 7
Dependent Claim 35 words
A device as recited in claim 5, wherein said inflatable balloon adjacent windings are closely spaced or in contact with inflated to minimize blood trapped between said balloon and a vessel wall to reduce attenuation.
Claim 8
Dependent Claim 16 words
A device as recited in claim 5, wherein said central shaft portion includes said perfusion tube.
Claim 9
Independent Claim 133 words
A method for treating a stenosed vessel site comprising the steps of: providing a catheter for irradiating vessel walls including an elongate tubular member having a proximal portion and a distal portion, said tubular member including an inflation lumen, said catheter further including a perfusion head attached to said elongate member distal portion, said perfusion head including an inflatable balloon in fluid communication with said inflation lumen, said perfusion head having a perfusion tube therethrough forming a perfusion lumen, said perfusion tube at least in part, containing a radiation emitting material fixedly disposed thereon; inserting said device into the vasculature of a patient such that the perfusion head is positioned adjacent to a treatment site; inflating said inflatable balloon; and exposing said treatment site to radiation from said radioactive wall through the balloon.
Claim 10
Independent Claim 133 words
A method for treating a stenosed vessel site comprising the steps of: providing a catheter for irradiating vessel walls including an elongate tubular member having a proximal portion and a distal portion, said tubular member including an inflation lumen, said catheter further including a perfusion head attached to said elongate member distal portion, said perfusion head including an inflatable balloon in fluid communication with said inflation lumen, said perfusion head having a perfusion tube therethrough forming a perfusion lumen, said perfusion tube at least in part, containing a radiation emitting material fixedly disposed thereon; inserting said device into the vasculature of a patient such that the perfusion head is positioned adjacent to a treatment site; inflating said inflatable balloon; and exposing said treatment site to radiation from said radioactive wall through the balloon.
Claim 11
Dependent Claim 16 words
A method as recited in claim 8, wherein said inflating step includes dilating said stenosed site.
Claim 12
Dependent Claim 13 words
A method as recited in claim 8, wherein said radiation is beta radiation.
Claim 13
Dependent Claim 39 words
A method as recited in claim 10, wherein said balloon is a helical balloon including at least one helical strand configured into a plurality of windings about said perfusion lumen wall, said windings being substantially adjacent to one another.
Claim 14
Dependent Claim 28 words
A method as recited in claim 11, wherein said catheter includes a guide wire lumen and said catheter is inserted over a guide wire in said inserting step.
Claim 15
Dependent Claim 15 words
A method as recited in claim 11, wherein said radioactive wall includes a metal coil.
Claim 16
Dependent Claim 16 words
A method as recited in claim 11, wherein said radioactive wall includes a radioactive metal coil.

References Cited (Backward Citations)

US2546761A Cited
US2862108A Cited
US2955208A Cited
US3060924A Cited
US3147383A Cited
US3324847A Cited
US3505991A Cited
US3674006A Cited
US3643096A Cited
US3861380A Cited
US3669093A Cited
US3750653A Cited
US3866050A Cited
US3811426A Cited
US3927325A Cited
US4096862A Cited
US4220864A Cited
US4588395A Cited
US4225790A Cited
US4281252A Cited
US4244357A Cited
US4314157A Cited
US4364376A Cited
US4631415A Cited
US4584991A Cited
US4763671A Cited
US4815449A Cited
US4897076A Cited
US4702228A Cited
US4784116A Cited
US5141487A Cited
US4706652A Cited
US4763642A Cited
US4881937A Cited
US5030194A Cited
US5084001A Cited
US4819618A Cited
US4976266A Cited
US4782834A Cited
US4851694A Cited
US5106360A Cited
US4936823A Cited
US5649924A Cited
US5163896A Cited
US5084002A Cited
US5575749A Cited
US5183455A Cited
US5103395A Cited
US4976680A Cited
US4861520A Cited
US4969863A Cited
US4963128A Cited
US5032113A Cited
US5147282A Cited
US4976690A Cited
US5059166A Cited
US5176617A Cited
US5199939A Cited
US5199939B1 Cited
US5267960A Cited
US5213561A Cited
US5120973A Cited
US5139473A Cited
US5092834A Cited
US5282781A Cited
US5807231A Cited
US5624372A Cited
US5354257A Cited
US5484384A Cited
DE9102312U1 Cited
US5611767A Cited
US5429582A Cited
US5370685A Cited
US5279562A Cited
US5344383A Cited
US5302168A Cited
US5411466A Cited
US5391139A Cited
US5425720A Cited
US5308356A Cited
US5405309A Cited
US5643171A Cited
US5674177A Cited
US5409015A Cited
US5540659A Cited
US5891091A Cited
US5498227A Cited
US5532122A Cited
US5545132A Cited
US5707332A Cited
US5503613A Cited
US5538494A Cited
US5618266A Cited
US5840064A Cited
US5556389A Cited
US5857956A Cited
US5503614A Cited
US5688220A Cited
US5899882A Cited
US5683345A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-08-29 2004-02-28 2004-08-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-08-29 2008-02-28 2008-08-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-08-29 2012-02-28 2012-08-29 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag