US5895397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intravascular catheter having combined imaging abrasion head
Assignee: Boston Scientific Scimed Inc
•
Filing: 1996-08-30
•
Granted: 1999-04-20
•
Expires: 2016-08-30
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 Martin Belef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:53
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: 62
Claim 1
Independent Claim
63 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member devoid of cutting edges and contained substantially within the housing during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected into the housing.
Claim 2
Independent Claim
63 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member devoid of cutting edges and contained substantially within the housing during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected into the housing.
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A method according to claim 1, wherein the abraded stenotic material is withdrawn from the housing by aspiration.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A method according to claim 2, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.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
42 words
A method according to claim 4 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 7
Dependent Claim
39 words
A method according to claim 1, wherein the housing has an aperture, and further comprising the step of inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 8
Dependent Claim
18 words
A method according to claim 1, wherein the abrasive member is operated by translation in combination with rotation.
Claim 9
Dependent Claim
13 words
A method according to claim 1 wherein the abrasive member is substantially cylindrical.
Claim 10
Independent Claim
71 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member devoid of cutting edges and contained substantially within the catheter during abrasion; 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 11
Independent Claim
71 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member devoid of cutting edges and contained substantially within the catheter during abrasion; 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 12
Dependent Claim
18 words
A method according to claim 9, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 13
Dependent Claim
23 words
A method according to claim 10, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 14
Dependent Claim
21 words
A method according to claim 9, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 15
Dependent Claim
42 words
A method according to claim 12 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 16
Dependent Claim
39 words
A method according to claim 9, wherein the housing has an aperture, and further comprising the step of inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 17
Dependent Claim
18 words
A method according to claim 9, wherein the abrasive member is operated by translation in combination with rotation.
Claim 18
Dependent Claim
13 words
A method according to claim 9 wherein the abrasive member is substantially cylindrical.
Claim 19
Independent Claim
58 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member contained completely within the catheter during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter.
Claim 20
Independent Claim
58 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an abrasive member contained completely within the catheter during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected by the catheter.
Claim 21
Dependent Claim
18 words
A method according to claim 17, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 22
Dependent Claim
23 words
A method according to claim 18, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 23
Dependent Claim
21 words
A method according to claim 17, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 24
Dependent Claim
42 words
A method according to claim 20 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 25
Dependent Claim
39 words
A method according to claim 17, wherein the housing has an aperture, and further comprising the step of inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 26
Dependent Claim
18 words
A method according to claim 17, wherein the abrasive member is operated by translation in combination with rotation.
Claim 27
Dependent Claim
13 words
A method according to claim 17 wherein the abrasive member is substantially cylindrical.
Claim 28
Independent Claim
62 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing, said catheter having an abrasive member contained completely within the housing during abrasion; 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 29
Independent Claim
62 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing, said catheter having an abrasive member contained completely within the housing during abrasion; 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 30
Dependent Claim
18 words
A method according to claim 25, wherein the abraded stenotic material is withdrawn from the housing by aspiration.
Claim 31
Dependent Claim
23 words
A method according to claim 26, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 32
Dependent Claim
21 words
A method according to claim 25, further comprising imaging the vascular system with an ultrasonic transducer, mounted on the abrasive member.
Claim 33
Dependent Claim
42 words
A method according to claim 28 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 34
Dependent Claim
39 words
A method according to claim 25, wherein the housing has an aperture, and further comprising the step of inflating at least one inflatable balloon attached to the housing so that the stenotic material penetrates the aperture of the housing.
Claim 35
Dependent Claim
18 words
A method according to claim 25, wherein the abrasive member is operated by translation in combination with rotation.
Claim 36
Dependent Claim
13 words
A method according to claim 25 wherein the abrasive member is substantially cylindrical.
Claim 37
Independent Claim
70 words
A method for imaging and removing stenotic material in a patient's vascular system comprising the steps of: introducing a catheter into the vascular system, said catheter having an abrasive member with an ultrasound transducer mounted thereon, said abrasive member remaining substantially within the catheter during abrasion; contacting the stenotic material with said abrasive member, causing the stenotic material to be abraded; and imaging the vascular system with the ultrasound transducer.
Claim 38
Independent Claim
70 words
A method for imaging and removing stenotic material in a patient's vascular system comprising the steps of: introducing a catheter into the vascular system, said catheter having an abrasive member with an ultrasound transducer mounted thereon, said abrasive member remaining substantially within the catheter during abrasion; contacting the stenotic material with said abrasive member, causing the stenotic material to be abraded; and imaging the vascular system with the ultrasound transducer.
Claim 39
Dependent Claim
16 words
A method according to claim 33 wherein the imaging is performed substantially concurrently with the contacting.
Claim 40
Dependent Claim
17 words
A method according to claim 33 wherein the abraded material is withdrawn from the catheter by aspiration.
Claim 41
Dependent Claim
36 words
A method according to claim 33, wherein the catheter has a housing with an aperture, and further comprising the step of inflating a balloon attached to the housing so that the stenotic material enters the aperture.
Claim 42
Dependent Claim
16 words
A method according to claim 33, wherein the abrasive member is operated by translation and rotation.
Claim 43
Dependent Claim
13 words
A method according to claim 37, wherein the abrasive member is substantially cylindrical.
Claim 44
Dependent Claim
13 words
A method according to claim 33 wherein the abrasive member is substantially cylindrical.
Claim 45
Dependent Claim
42 words
A method according to claim 33 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 46
Independent Claim
60 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an elongate cylindrical abrasive member contained substantially within the housing during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected into the housing.
Claim 47
Independent Claim
60 words
A method for removing stenotic material from a patient's vascular system comprising the steps of: introducing a catheter having a housing into the vascular system, said catheter having an elongate cylindrical abrasive member contained substantially within the housing during abrasion; and contacting the stenotic material with said abrasive member, whereby the stenotic material is abraded and collected into the housing.
Claim 48
Dependent Claim
20 words
A method according to claim 41, further comprising the step of withdrawing abraded stenotic material from the housing by aspiration.
Claim 49
Dependent Claim
23 words
A method according to claim 42, wherein the abraded stenotic material is withdrawn from the housing by a combination of flushing and aspiration.
Claim 50
Dependent Claim
26 words
A method according to claim 41, further comprising the step of imaging the vascular system with an ultrasonic transducer that is mounted on the abrasive member.
Claim 51
Dependent Claim
42 words
A method according to claim 44 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 52
Dependent Claim
15 words
A method according to claim 44, wherein the abrasive member is devoid of cutting edges.
Claim 53
Dependent Claim
42 words
A method according to claim 46 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 54
Dependent Claim
17 words
A method according to claim 46, wherein the abrasive member is completely within the housing during abrasion.
Claim 55
Dependent Claim
42 words
A method according to claim 48 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 56
Dependent Claim
17 words
A method according to claim 44, wherein the abrasive member is completely within the housing during abrasion.
Claim 57
Dependent Claim
42 words
A method according to claim 50 wherein the transducer has a proximal end and a distal end, and wherein the abrasive member extends longitudinally from at least the proximal end of the transducer to at least the distal end of the transducer.
Claim 58
Dependent Claim
30 words
A method according to claim 41, further comprising the step of inflating a balloon attached to the housing to cause the stenotic material to penetrate an aperture of the housing.
Claim 59
Dependent Claim
18 words
A method according to claim 41, wherein the abrasive member is operated by translation in combination with rotation.
Claim 60
Dependent Claim
15 words
A method according to claim 41, wherein the abrasive member is devoid of cutting edges.
Claim 61
Dependent Claim
18 words
A method according to claim 54, wherein the abrasive member is contained completely within the housing during abrasion.
Claim 62
Dependent Claim
18 words
A method according to claim 41, wherein the abrasive member is contained completely within the housing during abrasion.
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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) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |