US20040243162A1
Expired / Lapsed
US
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Interventional catheter assemblies and control systems
Assignee: Bayer Medical Care Inc
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Filing: 2004-03-10
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Granted: —
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Expires: 2024-03-10
Abstract
Abstract An interventional catheter assembly has an operating head [ 400 ] and catheter system [ 300 ] that are inserted and navigated within a patient's body while an operator controls the system externally of the operating head. Fluidic communication is provided between the operating head and the external system controls, and rotation is provided to the operating head by means of an external drive system. Numerous system controls are provided, along with various operating systems, sealing assemblies, actuators, torque transfer systems, and the like are provided. Some systems and controls are provided in a control pod [ 200 ] and some controls, as well as displays, are provided in a console unit [ 100 ]. Control pod [ 200 ], catheter system [ 300 ] and operating head [ 400 ] may be provided as a sterile, single use interventional catheter system, while the console unit [ 100 ] may be provided as a multiple use device that communicates with the sterile, single use interventional catheter system during operation.
Inventors
- 👤 Edward Wulfman
- 👤 Casey Torrance
- 👤 Brian Cran
- 👤 Brent Nistal
- 👤 Doug Greisen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:48
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61B; A61B17/00; A61B17/32; A61B17/3205; A61B17/3207; A61B17/320725; A61B17/320758; A61B5/00; A61B5/06; A61B5/061; A61B5/41; A61B5/414; A61B5/415; A61B5/418; A61B1/00; A61B1/00064; A61B1/00066; A61B1/005; A61B1/01; A61B17/320016; A61B17/32002; A61B17/34; A61B17/3462; A61B2017/00017; A61B2017/00199; A61B2017/00973; A61B17/22; A61B2017/22038; A61B2017/22049; A61B17/28; A61B17/29; A61B2017/2926; A61B2017/2927; A61B2017/320032; A61B2217/00; A61B2217/002; A61B2217/005; A61B8/00; A61B8/12; A61B8/42; A61B8/4209; A61M39/0606
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
79 words
1 . An interventional catheter assembly comprising: a. an operating head coupled to a drive shaft and a drive assembly for rotation and having ports communicating with a sealed lumen; b. a catheter system forming the sealed lumen mounted for axial translation at a proximal end with a control pod and communicating at a distal end with the operating head; and c. a control pod housing operational components for advancing the catheter system and selectably rotating the operating head.
Claim 2
Dependent Claim
79 words
1 . An interventional catheter assembly comprising: a. an operating head coupled to a drive shaft and a drive assembly for rotation and having ports communicating with a sealed lumen; b. a catheter system forming the sealed lumen mounted for axial translation at a proximal end with a control pod and communicating at a distal end with the operating head; and c. a control pod housing operational components for advancing the catheter system and selectably rotating the operating head.
Claim 3
Dependent Claim
42 words
2 . An interventional catheter assembly of claim 1 , additionally comprising an operating head drive motor coupled to the drive shaft, wherein the drive motor comprises a variable speed drive motor that delivers a constant voltage for any specified rotational output.
Claim 4
Dependent Claim
42 words
3 . An interventional catheter assembly of claim 2 , wherein the current delivered to the drive motor is adjusted, under load conditions, if the voltage for any specified rotational output is insufficient to produce the specified rotational output under load conditions.
Claim 5
Dependent Claim
33 words
4 . An interventional catheter assembly of claim 1 , additionally comprising an operating head drive motor coupled to the drive shaft, wherein the drive motor employs a cascaded variable regulator voltage source.
Claim 6
Dependent Claim
33 words
5 . An interventional catheter assembly of claim 1 , wherein the control pod incorporates selectable operator adjustment features allowing an operator to increase and decrease rotational speed delivered to the drive shaft.
Claim 7
Dependent Claim
29 words
6 . An interventional catheter assembly of claim 1 , additionally comprising a torque selection feature providing preselected torque levels delivered by the drive assembly to the drive shaft.
Claim 8
Dependent Claim
37 words
7 . An interventional catheter assembly of claim 6 , wherein the torque selection feature incorporates an override setting for each selectable torque level, whereby the drive assembly is inactivated when a preselected torque level is exceeded.
Claim 9
Dependent Claim
59 words
8 . An interventional catheter assembly of claim 1 , wherein the catheter system has at least one section wherein a coil is provided in proximity to and along a common axis with a flexible sealed catheter and contacts but is not bonded to the catheter, whereby the flexible sealed catheter and coil combination provide a kink-free catheter section.
Claim 10
Dependent Claim
35 words
9 . An interventional catheter assembly of claim 1 , additionally having an aspiration motor comprising a multi-lobed vacuum pump that provides a consistent, high level of aspiration during operation of the interventional catheter assembly.
Claim 11
Dependent Claim
24 words
10 . An interventional catheter assembly of claim 1 , additionally having an aspiration system comprising a plurality of vacuum pumps connected in series.
Claim 12
Dependent Claim
47 words
11 . An interventional catheter assembly of claim 1 , wherein the control pod houses a drive motor coupled to the drive shaft by means of an arrangement of sliding tubes that rotate with respect to one another by balls held in slots formed in the tubes.
Claim 13
Dependent Claim
44 words
12 . An interventional catheter assembly of claim 1 , wherein the control pod incorporates a fluid seal assembly providing migration of fluid to a space formed between the drive shaft and a sealing member to prevent ingress of gas to the catheter system.
Claim 14
Dependent Claim
28 words
13 . An interventional catheter assembly of claim 1 , wherein the control pod incorporates a speed adjustment selection switch controlling rotational speed transmitted to the drive shaft.
Claim 15
Dependent Claim
39 words
14 . An interventional catheter assembly of claim 1 , wherein the operating head is adjustable between at least two operating conditions and the control pod incorporates a selection switch allowing an operator to select among operation head parameters.
Claim 16
Dependent Claim
23 words
15 . An interventional catheter assembly of claim 14 , wherein the selection switch allows an operator to select an operating head diameter.
Claim 17
Dependent Claim
26 words
16 . An interventional catheter assembly of claim 1 , wherein the operating head, catheter system and control pod are provided as a sterile, disposable kit.
Claim 18
Dependent Claim
22 words
17 . An interventional catheter assembly of claim 16 , additionally comprising a fluid receptacle in fluid communication with the catheter system.
Claim 19
Dependent Claim
57 words
18 . An interventional catheter assembly of claim 1 , wherein the control pod houses a drive motor operably coupled to the drive shaft and the drive motor is coupled to a sliding actuator mounted on the catheter system such that the drive motor is actuated when the sliding actuator grips the catheter system and advances it.
Claim 20
Dependent Claim
41 words
19 . An interventional catheter assembly of claim 1 , wherein the control pod incorporates a guidewire brake operable to clamp a guidewire in a stationary position when engaged and to allow translation of the guidewire through the brake when released.
Claim 21
Dependent Claim
35 words
20 . An interventional catheter assembly of claim 19 , additionally comprising a guidewire brake control system interrupt that prevents the drive system from being actuated when the guidewire brake is in a release position.
Claim 22
Dependent Claim
42 words
21 . An interventional catheter assembly of claim 19 , additionally comprising a guidewire brake selectable interrupt override control that, when actuated, permits an operator to selectably permit operation of the drive system when the guidewire brake is in a release position.
Claim 23
Dependent Claim
63 words
22 . An interventional catheter assembly of claim 1 , additionally comprising a slip seal adaptor mounted for axial translation on the catheter system having an adaptor insertion end that fits in an opening of an entry system connector port and a seal section having an inner diameter closely matching the outer diameter of the catheter system and slidable over the catheter system.
Claim 24
Dependent Claim
22 words
23 . An interventional catheter assembly of claim 1 , additionally comprising an extendable, telescoping guidewire support mounted in the control pod.
Claim 25
Dependent Claim
32 words
24 . An interventional catheter assembly of claim 1 , additionally comprising a console unit incorporating system control and display features and a motor providing vacuum for aspiration to the catheter assembly.
Claim 26
Dependent Claim
32 words
25 . An interventional catheter assembly of claim 24 , wherein the motor comprises a multi-lobed vacuum pump that provides consistent, high levels of aspiration during operation of the interventional catheter assembly.
Claim 27
Dependent Claim
36 words
26 . An interventional catheter assembly of claim 24 , wherein the motor comprises a plurality of vacuum pumps connected in series to provide constant, high levels of aspiration during operation of the interventional catheter assembly.
Claim 28
Dependent Claim
29 words
27 . An interventional catheter assembly of claim 24 , wherein the console unit is in electrical communication with the control pod and provides power to the drive system.
Claim 29
Dependent Claim
47 words
28 . An interventional catheter assembly of claim 24 , wherein the console unit displays output operational information including at least three of operating head rotation rate, operating head advance rate, aspiration rate, elapsed time of operation, aspiration volume, and fluid flow rate at the target site.
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