Patent SU400319A1 successfully refreshed from Google Patents.
US20080103446A1
Active / In Force
US
⏱️ 0.9 years remaining
Interventional catheters incorporating aspiration and/or infusion systems
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 comprising a catheter for insertion and guidance to a target site in a body lumen or a cavity and an operating head mounted in proximity to a distal end of the catheter and comprising a system for removing obstructive material from the target site is provided. In certain embodiments, the catheter assembly includes at least one aspiration port located proximal to the operating head that communicates with a first sealed lumen for withdrawing fluids and obstructive material from the target site, together with at least one liquid infusion port penetrating the catheter and located proximal to the at least one aspiration port that communicates with a second sealed lumen for supplying fluid to a location in proximity to the target site.
Inventors
- 👤 Casey Torrance
- 👤 Kate Walsh
- 👤 Jared Salstrom
- 👤 Scott Youmans
- 👤 Edward Wulfman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:17
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: 25
Claim 1
Independent Claim
137 words
1 . An interventional catheter assembly comprising: (a) a catheter for insertion and guidance to a target site in a body lumen or a cavity; (b) an operating head mounted in proximity to a distal end of the catheter and comprising a system for removing obstructive material from the target site; (c) at least one aspiration port located proximal to the operating head, wherein the at least one aspiration port is in communication with a first sealed lumen for withdrawing fluids and obstructive material from the target site; and (d) at least one liquid infusion port penetrating the catheter and located proximal to the at least one aspiration port, wherein the at least one liquid infusion port is in communication with a second sealed lumen for supplying fluid to a location in proximity to the target site.
Claim 2
Dependent Claim
137 words
1 . An interventional catheter assembly comprising: (a) a catheter for insertion and guidance to a target site in a body lumen or a cavity; (b) an operating head mounted in proximity to a distal end of the catheter and comprising a system for removing obstructive material from the target site; (c) at least one aspiration port located proximal to the operating head, wherein the at least one aspiration port is in communication with a first sealed lumen for withdrawing fluids and obstructive material from the target site; and (d) at least one liquid infusion port penetrating the catheter and located proximal to the at least one aspiration port, wherein the at least one liquid infusion port is in communication with a second sealed lumen for supplying fluid to a location in proximity to the target site.
Claim 3
Dependent Claim
35 words
2 . The interventional catheter assembly of claim 1 , wherein the at least one aspiration port extends over at least 10%, at least 20% or at least 30% of a circumference of the catheter.
Claim 4
Dependent Claim
22 words
3 . The interventional catheter assembly of claim 1 , comprising a plurality of liquid infusion ports spaced circumferentially around the catheter.
Claim 5
Dependent Claim
40 words
4 . The interventional catheter assembly of claim 3 , wherein the plurality of liquid infusion ports are uniformly spaced around the circumference of the catheter to provide substantially even distribution of infused liquid around the circumference of the catheter.
Claim 6
Dependent Claim
38 words
5 . The interventional catheter assembly of claim 3 , wherein the plurality of liquid infusion ports are non-uniformly spaced to direct flow of infused liquid in at least one desired direction around the circumference of the catheter.
Claim 7
Dependent Claim
34 words
6 . The interventional catheter assembly of claim 1 , additionally comprising at least one port located in the operating head and in communication with a sealed lumen for aspiration or infusion of liquid.
Claim 8
Dependent Claim
146 words
7 . 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 a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the infusion and aspiration systems are controlled during operation of the interventional catheter assembly to provide volume ratios of infusate to aspirate of greater than about 1:1 and less than about 2.5:1.
Claim 9
Dependent Claim
146 words
7 . 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 a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the infusion and aspiration systems are controlled during operation of the interventional catheter assembly to provide volume ratios of infusate to aspirate of greater than about 1:1 and less than about 2.5:1.
Claim 10
Dependent Claim
28 words
8 . The interventional catheter assembly of claim 7 , wherein the volume ratios of infusate to aspirate is greater than about 1.5:1 and less than about 2.5:1.
Claim 11
Dependent Claim
24 words
9 . The interventional catheter assembly of claim 7 , wherein the at least one aspiration port is located proximal to the operating head.
Claim 12
Dependent Claim
24 words
10 . The interventional catheter assembly of claim 9 , wherein the at least one infusion port is located proximal to the aspiration port.
Claim 13
Dependent Claim
151 words
11 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and incorporating a system for removing obstructive material from a target site in a body lumen or a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the infusion and aspiration systems are controlled during operation of the interventional catheter assembly to provide an infusion rate of about 45-150 ml/min of device run-time and an aspiration rate of about 20-90 ml/min of device run-time.
Claim 14
Dependent Claim
151 words
11 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and incorporating a system for removing obstructive material from a target site in a body lumen or a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the infusion and aspiration systems are controlled during operation of the interventional catheter assembly to provide an infusion rate of about 45-150 ml/min of device run-time and an aspiration rate of about 20-90 ml/min of device run-time.
Claim 15
Dependent Claim
24 words
12 . The interventional catheter assembly of claim 11 , wherein the at least one aspiration port is located proximal to the operating head.
Claim 16
Dependent Claim
24 words
13 . The interventional catheter assembly of claim 12 , wherein the at least one infusion port is located proximal to the aspiration port.
Claim 17
Dependent Claim
92 words
14 . A control module for an interventional catheter assembly comprising: (a) an aspiration pump operably connected to a fluid aspiration system for aspiration of fluid in proximity to an operating head. (b) an infusion pump operably connected to a fluid infusion system for the delivery of an infusate fluid to a target site in a body lumen or cavity; and (c) a detector for detecting the presence of a bubble in the infusate fluid, wherein upon detection of a bubble in the infusate fluid, the control module inactivates the infusion pump.
Claim 18
Dependent Claim
92 words
14 . A control module for an interventional catheter assembly comprising: (a) an aspiration pump operably connected to a fluid aspiration system for aspiration of fluid in proximity to an operating head. (b) an infusion pump operably connected to a fluid infusion system for the delivery of an infusate fluid to a target site in a body lumen or cavity; and (c) a detector for detecting the presence of a bubble in the infusate fluid, wherein upon detection of a bubble in the infusate fluid, the control module inactivates the infusion pump.
Claim 19
Dependent Claim
29 words
15 . The control module of claim 14 , wherein upon detection of the presence of a bubble in the infusate fluid, the control module inactivates the operating head.
Claim 20
Dependent Claim
30 words
16 . The control module of claim 14 , wherein the control module automatically activates the fluid aspiration system and the fluid infusion system upon activation or the operating head.
Claim 21
Dependent Claim
35 words
17 . The control module of claim 14 , wherein the control module automatically inactivates the fluid aspiration system and the fluid infusion system after a selected time period following inactivation of the operating head.
Claim 22
Dependent Claim
28 words
18 . The control module of claim 14 , additionally comprising at least one override control that allows an operator to override a pre-programmed infusion and/or aspiration feature.
Claim 23
Dependent Claim
28 words
19 . The control module of claim 14 , wherein the pressure of the infusate fluid as measured at the infusion pump is about 80 to 200 psi.
Claim 24
Dependent Claim
135 words
20 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and incorporating a system for removing obstructive material from a target site in a body lumen or a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the aspiration system and the infusion system are automatically inactivated after a selected time period following inactivation of the operating head.
Claim 25
Dependent Claim
135 words
20 . An interventional catheter assembly comprising: (a) an operating head mounted at a distal end of the catheter assembly and incorporating a system for removing obstructive material from a target site in a body lumen or a cavity; (b) at least one aspiration port provided in proximity to the operating head and in communication with a sealed lumen for withdrawing aspirate fluids and obstructive material from the target site; (c) at least one infusion port for supplying infusate fluid to a location in proximity to the target site; (d) an aspiration system for applying vacuum to the aspiration port; and (e) an infusion system for providing infusate fluid to the infusion port, wherein the aspiration system and the infusion system are automatically inactivated after a selected time period following inactivation of the operating head.
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