US20080103439A1
Active / In Force
US
⏱️ 0.9 years remaining
Interventional catheters incorporating an active aspiration system
Assignee: Boston Scientific Medical Device Ltd
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Filing: 2007-10-03
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Granted: —
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Expires: 2027-10-03
Abstract
Abstract An interventional catheter assembly comprises an operating head for removing obstructive material from a target site in a body lumen or cavity and at least one aspiration port located proximal to the operating head and penetrating the catheter assembly, the aspiration port being in communication with a sealed lumen that communicates with a vacuum system for withdrawing aspirate fluid and obstructive material from the target site. A rotatable member is positioned inside the catheter assembly at the site of the aspiration port and rotates during operation of the vacuum system. The rotatable member is provided with at least one upstanding bar that is sized to cooperate with the walls of the aspiration port and the inner surface of the catheter assembly to macerate debris that is drawn into the aspiration port.
Inventors
- 👤 Casey Torrance
- 👤 David AUTH
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:47
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/22; A61B1/00; A61B1/00064; A61B1/00071; A61B1/0008; A61B1/00087; A61B1/04; A61B1/05; A61B17/320016; A61B17/32002; A61B17/320725; A61B17/320758; A61B8/00; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61M; A61M1/00; A61M1/71; A61M1/80; A61M1/84; A61M25/00; A61M25/0067; A61M25/0082; A61M25/01; A61M25/09; A61M5/00; A61M5/14; A61M5/142; A61M5/168; A61M5/16831; A61B2017/22079; A61B2017/320004; A61B2017/320032; A61B2017/320775; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
1 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and comprising a system for removing obstructive material from a target site in a body lumen or cavity; (b) at least one aspiration port located proximal to the operating head and penetrating the catheter assembly, the at least one aspiration port being in communication with a first sealed lumen that communicates with a vacuum system for withdrawing aspirate fluid and obstructive material from the target site; and (c) a rotatable member positioned inside the catheter assembly at the site of the aspiration port, wherein the rotatable member comprises at least one upstanding bar provided on a rotatable drive element, the at least one upstanding bar having a longitudinal axis that is aligned with a longitudinal axis of the catheter assembly, wherein, the rotatable member rotates during operation of the vacuum system.
Claim 2
Dependent Claim
151 words
1 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and comprising a system for removing obstructive material from a target site in a body lumen or cavity; (b) at least one aspiration port located proximal to the operating head and penetrating the catheter assembly, the at least one aspiration port being in communication with a first sealed lumen that communicates with a vacuum system for withdrawing aspirate fluid and obstructive material from the target site; and (c) a rotatable member positioned inside the catheter assembly at the site of the aspiration port, wherein the rotatable member comprises at least one upstanding bar provided on a rotatable drive element, the at least one upstanding bar having a longitudinal axis that is aligned with a longitudinal axis of the catheter assembly, wherein, the rotatable member rotates during operation of the vacuum system.
Claim 3
Dependent Claim
32 words
2 . The interventional catheter assembly of claim 1 , wherein the rotatable member is provided on a common central axis with the catheter assembly at the site of the aspiration port.
Claim 4
Dependent Claim
33 words
3 . The interventional catheter assembly of claim 1 , wherein the aspiration port extends over at least 15%, at least 25% or at least 35% of the circumference of the catheter assembly.
Claim 5
Dependent Claim
49 words
4 . The interventional catheter assembly of claim 1 , wherein the at least one upstanding bar is sized to interact with at least one wall of the aspiration port and an inner surface of the catheter assembly to macerate obstructive material that is drawn into the aspiration port.
Claim 6
Dependent Claim
36 words
5 . The interventional catheter assembly of claim 1 , wherein the rotatable member comprise at least two upstanding bars provided in a radially symmetrical arrangement with respect to the longitudinal axis of the catheter assembly.
Claim 7
Dependent Claim
49 words
6 . The interventional catheter assembly of claim 1 , wherein the at least one upstanding bar is provided on a central core structure and has a higher profile with respect to an outer surface of the central core structure at its proximal end than at its distal end.
Claim 8
Dependent Claim
36 words
7 . The interventional catheter assembly of claim 1 , wherein the at least one upstanding bar is provided with undercut walls that facilitate movement of aspirate fluid and obstructive material proximally to the aspiration lumen.
Claim 9
Dependent Claim
35 words
8 . The interventional catheter assembly of claim 1 , further comprising at least one infusion port located proximally to the aspiration port and communicating with a second sealed lumen for the infusion of fluids.
Claim 10
Dependent Claim
24 words
9 . The interventional catheter assembly of claim 9 , comprising multiple infusion ports spaced radially on an outer circumference of the catheter assembly.
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