US20080004645A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Atherectomy devices and methods
Assignee: AtheroMed Inc
•
Filing: 2006-10-19
•
Granted: —
•
Expires: 2026-10-19
Abstract
Abstract The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.
Inventors
- 👤 John To
- 👤 Christopher James Danek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:08
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320783; A61B17/22; A61B17/320758; A61B17/00234; A61B2017/00292; A61B2017/003; A61B2017/00318; A61B2017/22038; A61B2017/22041; A61B2017/320716; A61B2017/320741; A61B2017/320775; A61B90/00; A61B90/36; A61B90/37; A61B2090/373; A61B2090/3735; A61B2090/378; A61B2090/3782; A61B2090/3784; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0133; A61M25/0152; A61M25/0155
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
5 words
1 - 49 . (canceled)
Claim 2
Dependent Claim
5 words
1 - 49 . (canceled)
Claim 3
Dependent Claim
198 words
50 . A vascular device for removing material from body lumens, the device comprising: a steering member; a catheter body having a stiffer proximal portion and a more flexible distal portion; a steering member located along the catheter body, the steering member having a curved section located towards the distal end, where the curved section is more flexible than the stiffer proximal portion of the catheter body such that when located along the flexible portion the flexible distal portion of the catheter body takes the shape of the curved section; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through the catheter body and coupled to the cutter, the torque shaft having a proximal end adapted to couple to a first rotating mechanism; and where on advancement of the curved section of the steering member out of the distal portion of the sheath, the curved section reshapes the catheter body.
Claim 4
Dependent Claim
198 words
50 . A vascular device for removing material from body lumens, the device comprising: a steering member; a catheter body having a stiffer proximal portion and a more flexible distal portion; a steering member located along the catheter body, the steering member having a curved section located towards the distal end, where the curved section is more flexible than the stiffer proximal portion of the catheter body such that when located along the flexible portion the flexible distal portion of the catheter body takes the shape of the curved section; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through the catheter body and coupled to the cutter, the torque shaft having a proximal end adapted to couple to a first rotating mechanism; and where on advancement of the curved section of the steering member out of the distal portion of the sheath, the curved section reshapes the catheter body.
Claim 5
Dependent Claim
53 words
51 . The device of claim 50 , where the deflecting member comprises a mandrel slidably located in the catheter body and extendable out of a distal opening of the catheter body, where upon extending out of the distal opening to push against tissue to deflect the distal end of the catheter body.
Claim 6
Dependent Claim
52 words
52 . The device of claim 50 , where a portion of the housing comprises a curved surface and the opening forms a plane across the curved surface such that as the cutting surface rotates across the opening, a portion of the cutting surface extends out of the housing through the opening.
Claim 7
Dependent Claim
25 words
53 . The device of claim 50 , where the torque shaft and cutter each have a lumen allowing for advancement of a guidewire therethrough.
Claim 8
Dependent Claim
24 words
54 . The device of claim 50 , cutter comprises a plurality of flutes and the cutting surface is an edge of the flute.
Claim 9
Dependent Claim
16 words
55 . The device of claim 54 , where the edge of the flute is helical.
Claim 10
Dependent Claim
38 words
56 . The device of claim 54 , where each flute is arranged relative to the openings in the housing such that during a total length of the cutting surface exposed in the housing opening remains the same.
Claim 11
Dependent Claim
24 words
57 . The device of claim 50 , further including a ferrule linking the housing to the said outer tube on the catheter body.
Claim 12
Dependent Claim
38 words
58 . The device of claim 50 , where the shaft has at least one helical conveyor member wound about an exterior such that rotation of the torque shaft conveys material across a length of the torque shaft.
Claim 13
Dependent Claim
27 words
59 . The device of claim 50 , where the helical conveyor member is wound in the same rotational sense as the helical flutes on the cutter.
Claim 14
Dependent Claim
18 words
60 . The device of claim 50 , where a guide-wire portion is fixedly attached to the cutter.
Claim 15
Dependent Claim
23 words
61 . The device of claim 50 , where the deflecting member comprises a wire extending along a length of the flexible catheter.
Claim 16
Dependent Claim
21 words
62 . The device of claim 50 , further comprising a burr rotatably located on a tip of the cutter assembly.
Claim 17
Dependent Claim
5 words
63 - 78 . (canceled)
Claim 18
Dependent Claim
5 words
63 - 78 . (canceled)
Claim 19
Dependent Claim
106 words
79 . A vascular device for removing material from body lumens, the device comprising: a catheter body having a proximal portion and a distal portion; a steering tube having varying stiffness along its circumference at the distal portion; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located there between; and the distal portion of the steering tube is attached to the cutter assembly.
Claim 20
Dependent Claim
106 words
79 . A vascular device for removing material from body lumens, the device comprising: a catheter body having a proximal portion and a distal portion; a steering tube having varying stiffness along its circumference at the distal portion; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located there between; and the distal portion of the steering tube is attached to the cutter assembly.
Claim 21
Dependent Claim
21 words
80 . A device of claim 79 , where tension on the steering tube deflects the distal portion of the catheter.
Claim 22
Dependent Claim
21 words
81 . A device of claim 79 , where compression of the steering tube deflects the distal portion of the catheter.
Claim 23
Dependent Claim
5 words
82 - 106 . (canceled)
Claim 24
Dependent Claim
5 words
82 - 106 . (canceled)
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