Patent US3025414A successfully refreshed from Google Patents.
US8469979B2
Active / In Force
US
⏱️ 4.9 years remaining
High capacity debulking catheter with distal driven cutting wheel
Assignee: Covidien LP
•
Filing: 2011-09-22
•
Granted: 2013-06-25
•
Expires: 2031-09-22
Abstract
Abstract An atherectomy catheter with a rotary cutting element is provided. The catheter collects plaque shavings in a hollow collection chamber. The catheter includes a drive shaft connected between a source of rotational power and the distal side of the cutting element, no part of the drive shaft being contained within the collection chamber.
Inventors
- 👤 William John Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:51
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320758; A61B17/320783; A61B17/22; A61B17/22004; A61B17/22012; A61B17/2202; A61B17/320725; A61B2017/00681; A61B2017/00685; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2927; A61B17/320016; A61B17/32002; A61B2017/320032; A61B2017/320775; A61B2017/320791; A61B8/00; A61B8/12
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
162 words
A catheter for removing tissue comprising: an elongate body having a proximal end and a distal end and a tubular side wall having an outer surface defining an outer dimension of the elongate body and an inner surface defining a lumen, the elongate body having a distal portion with a window in the side wall, the lumen proximally adjacent the window comprising a material collection chamber; a rotational tissue cutting element disposed at least partially within the lumen of the elongate body, the tissue cutting element having a distal side and a proximal side, the tissue cutting element having an axis of rotation that extends through the material collection chamber; a source of rotational power; and a drive shaft connected between the source of rotational power and the distal side of the rotational tissue cutting element, no portion of the drive shaft being contained within the material collection chamber, such that the material collection chamber is substantially open for collection of tissue.
Claim 2
Dependent Claim
162 words
A catheter for removing tissue comprising: an elongate body having a proximal end and a distal end and a tubular side wall having an outer surface defining an outer dimension of the elongate body and an inner surface defining a lumen, the elongate body having a distal portion with a window in the side wall, the lumen proximally adjacent the window comprising a material collection chamber; a rotational tissue cutting element disposed at least partially within the lumen of the elongate body, the tissue cutting element having a distal side and a proximal side, the tissue cutting element having an axis of rotation that extends through the material collection chamber; a source of rotational power; and a drive shaft connected between the source of rotational power and the distal side of the rotational tissue cutting element, no portion of the drive shaft being contained within the material collection chamber, such that the material collection chamber is substantially open for collection of tissue.
Claim 3
Dependent Claim
27 words
The catheter of claim 1 , wherein the source of rotational power is positioned within the elongate body at a location distal to the tissue cutting element.
Claim 4
Dependent Claim
29 words
The catheter of claim 1 , further comprising a handle connected at the proximal end of the elongate body, the source of rotational power being contained within the handle.
Claim 5
Dependent Claim
35 words
The catheter of claim 1 , in which the source of rotational power is one of a mechanical coupling to a rotating shaft, an electric motor, a pressure powered turbine, or a chemical powered turbine.
Claim 6
Dependent Claim
65 words
The catheter of claim 2 , wherein the drive shaft includes a proximal portion having an axis of rotation that generally coincides with the axis of rotation of the tissue cutting element and a distal portion having an axis of rotation that is radially off-set from the axis of rotation of the tissue cutting element and from the axis of rotation of the proximal portion.
Claim 7
Dependent Claim
32 words
The catheter of claim 5 , further comprising a first gear element connected to transfer torque from the proximal portion of the drive shaft to the distal portion of the drive shaft.
Claim 8
Dependent Claim
33 words
The catheter of claim 6 , further comprising a second gear element connected to transfer torque from the distal portion of the drive shaft to the distal side of the tissue cutting element.
Claim 9
Dependent Claim
27 words
The catheter of claim 1 , wherein the drive shaft has first and second ends positioned within the elongate body distal of the rotational tissue cutting element.
Claim 10
Dependent Claim
61 words
The catheter of claim 1 , wherein the elongate body further comprises a deflectable nose region, and a mechanism to allow an operator to deflect the nose region against a body lumen, thereby pushing the window and the rotatable tissue cutting element against an opposite wall of the body lumen, allowing the rotatable cutter to cut material from said body lumen.
Claim 11
Dependent Claim
16 words
The catheter of claim 1 , wherein the elongate body contains openings for receiving a guidewire.
Claim 12
Dependent Claim
25 words
The catheter of claim 1 , wherein the distal portion of the elongate body further comprises an RF electrode, a laser, or an ultrasound emitter.
Claim 13
Dependent Claim
19 words
The catheter of claim 1 , wherein the distal portion of the elongate body further comprises an imaging device.
Claim 14
Dependent Claim
27 words
The catheter of claim 12 , in which the imaging device is selected from the group consisting of ultrasound transducer arrays, optical fibers, and coherence tomography devices.
Claim 15
Dependent Claim
36 words
The catheter of claim 1 , further comprising a source of ultrasonic vibration operatively coupled to the rotatable tissue cutting element, the source of ultrasonic vibration being configured to ultrasonically vibrate the rotatable tissue cutting element.
Claim 16
Dependent Claim
17 words
The catheter of claim 14 , wherein the source of ultrasonic vibration is a piezoelectric ultrasonic vibrator.
References Cited (Backward Citations)
US1481078A
Cited
US2178790A
Cited
US2701559A
Cited
US2850007A
Cited
US3064651A
Cited
US3082805A
Cited
US3320957A
Cited
US3614953A
Cited
US3732858A
Cited
US3705577A
Cited
US3683891A
Cited
US3749085A
Cited
US3945375A
Cited
SU442795A1
Cited
US3815604A
Cited
US3800783A
Cited
US3831585A
Cited
US3837345A
Cited
US3845375A
Cited
US3937222A
Cited
US3976077A
Cited
US4007732A
Cited
US4038985A
Cited
US3995619A
Cited
US4020847A
Cited
US4030503A
Cited
US4034744A
Cited
US4112708A
Cited
US4177797A
Cited
SU665908A1
Cited
US4210146A
Cited
US4306562A
Cited
US4349032A
Cited
US4273128A
Cited
US4306570A
Cited
US4368730A
Cited
GB2093353A
Cited
US4436091A
Cited
US4494057A
Cited
GB2115829A
Cited
US4445509A
Cited
EP0086048A2
Cited
US4692141A
Cited
US4512344A
Cited
US4424045A
Cited
EP0107009A2
Cited
US4490139A
Cited
US4936987A
Cited
US4603694A
Cited
US4730616A
Cited
US5562728A
Cited
US5397345A
Cited
US4620547A
Cited
US4631052A
Cited
US4589412A
Cited
US5024651A
Cited
US4819634A
Cited
US4979939A
Cited
US4842579A
Cited
US4842579B1
Cited
US4886490A
Cited
US5002553A
Cited
US4754755A
Cited
US4894051A
Cited
US5135531A
Cited
US4732154A
Cited
US4979951A
Cited
US4781186A
Cited
US4926858A
Cited
US4646719A
Cited
USRE33258E
Cited
US4646736A
Cited
US4649919A
Cited
US4705038A
Cited
US4745919A
Cited
US4653496A
Cited
US4747406A
Cited
US4706671A
Cited
US4686982A
Cited
US4679558A
Cited
US4664112A
Cited
US4790812A
Cited
US4696298A
Cited
US4646738A
Cited
US4990134B1
Cited
US4990134A
Cited
EP0229620A2
Cited
US5000185A
Cited
US4669469A
Cited
US4771774A
Cited
US5902245A
Cited
US4794931A
Cited
US4728319A
Cited
US4696667A
Cited
US5451233A
Cited
US5300085A
Cited
US4757819A
Cited
US4729763A
Cited
US4765332A
Cited
US4747821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2016-06-24 | 2016-12-24 | 2017-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2020-06-24 | 2020-12-24 | 2021-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2024-06-24 | 2024-12-24 | 2025-06-25 | $7700.00 | Window Closed / Lapsed |