US5569276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular catheter having combined imaging abrasion head
Assignee: Boston Scientific Scimed Inc
•
Filing: 1995-06-06
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Granted: 1996-10-29
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Expires: 2015-06-06
Abstract
Abstract Front-end and side-on intravascular catheters are described that comprise an abrasive head contained substantially within a housing. Aspiration means and flushing means are connected to the region of grinding to remove dislodged debris. A preferred embodiment has the abrasive surface of a rotatable head comprised of diamond powder. Another preferred embodiment has an ultrasonic transducer affixed to the head to permit transluminal imaging of the site of occlusion.
Inventors
- 👤 Yue-Teh Jang
- 👤 William M. Belef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; A61B8/00; A61B8/12; A61B17/22; A61B2017/22051; A61B2017/22052; A61B2017/320004
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
57 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter.
Claim 2
Independent Claim
57 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter.
Claim 3
Dependent Claim
18 words
A method according to claim 1, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 4
Dependent Claim
23 words
A method according to claim 2, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 5
Dependent Claim
21 words
A method according to claim 1, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 6
Dependent Claim
29 words
A method according to claim 1, further comprising inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 7
Dependent Claim
18 words
A method according to claim 1, wherein the abrasive member is contacted by translation in combination with rotation.
Claim 8
Independent Claim
66 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded; and collecting abraded stenotic material by means of flushing and aspiration within the catheter.
Claim 9
Independent Claim
66 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded; and collecting abraded stenotic material by means of flushing and aspiration within the catheter.
Claim 10
Dependent Claim
18 words
A method according to claim 7, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 11
Dependent Claim
23 words
A method according to claim 8, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 12
Dependent Claim
21 words
A method according to claim 7, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 13
Dependent Claim
29 words
A method according to claim 7, further comprising inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 14
Dependent Claim
18 words
A method according to claim 7, wherein the abrasive member is contacted by translation in combination with rotation.
Claim 15
Independent Claim
74 words
A method for removing the stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter; and monitoring the extent of removal of stenotic material concurrent with or subsequent to the abrasion process.
Claim 16
Independent Claim
74 words
A method for removing the stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter; and monitoring the extent of removal of stenotic material concurrent with or subsequent to the abrasion process.
Claim 17
Dependent Claim
18 words
A method according to claim 13, wherein the abraded stenotic material is withdrawn from me housing by aspiration.
Claim 18
Dependent Claim
23 words
A method according to claim 14, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 19
Dependent Claim
21 words
A method according to claim 13, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 20
Dependent Claim
29 words
A method according to claim 13, further comprising inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 21
Dependent Claim
18 words
A method according to claim 13, wherein the abrasive member is contacted by translation in combination with rotation.
Claim 22
Independent Claim
82 words
A method for removing the stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded; collecting abraded stenotic material by means of flushing and aspiration within the catheter; and monitoring the extent of removal of stenotic material concurrent with or subsequent to the abrasion process.
Claim 23
Independent Claim
82 words
A method for removing the stenotic material from a patient's vascular system comprising the steps of: introducing a catheter, said catheter having an abrasive member contained substantially within the catheter during positioning and abrasion, into the vascular system; contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded; collecting abraded stenotic material by means of flushing and aspiration within the catheter; and monitoring the extent of removal of stenotic material concurrent with or subsequent to the abrasion process.
Claim 24
Dependent Claim
18 words
A method according to claim 19, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 25
Dependent Claim
23 words
A method according to claim 20, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 26
Dependent Claim
21 words
A method according to claim 19, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 27
Dependent Claim
29 words
A method according to claim 19, further comprising inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 28
Dependent Claim
18 words
A method according to claim 19, wherein the abrasive member is contacted by translation in combination with rotation.
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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) | 1999-10-29 | 2000-04-29 | 2000-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-10-29 | 2004-04-29 | 2004-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-10-29 | 2008-04-29 | 2008-10-29 | $7700.00 | Window Closed / Lapsed |