Multi-catheter steerable guiding system and methods of use
First Claim
1. A multi-catheter guiding system for accessing a body cavity comprising:
- an outer guiding catheter having a proximal end, a distal end and a central lumen therethrough, the outer guiding catheter capable of forming a primary curve near its distal end; and
an inner guiding catheter having a proximal end, a distal end and a central lumen therethrough, the inner guiding catheter positionable within the central lumen of the outer guiding catheter so that its distal end extends beyond the distal end of the outer guiding catheter, the inner guiding catheter capable of forming a secondary curve near its distal end.
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Accused Products
Abstract
Devices, systems, methods and kits are provided for endoscopically accessing a body cavity and providing a directed pathway toward a target tissue within the cavity. The directed pathway is provided by a multi-catheter guiding system which is positioned in a desired configuration, generally directed toward the target tissue. Interventional devices may then be passed through the guiding system to the target tissue. Depending on the location of the target tissue and the desired angle of approach, the guiding system may be required to maintain one or more curves in one or more planes to properly direct the interventional devices. The multi-catheter guiding system of the present invention comprises an outer guiding catheter and a coaxially positioned inner guiding catheter, each of which independently form curvatures so that together the curves properly direct the interventional device.
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Citations
60 Claims
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1. A multi-catheter guiding system for accessing a body cavity comprising:
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an outer guiding catheter having a proximal end, a distal end and a central lumen therethrough, the outer guiding catheter capable of forming a primary curve near its distal end; and
an inner guiding catheter having a proximal end, a distal end and a central lumen therethrough, the inner guiding catheter positionable within the central lumen of the outer guiding catheter so that its distal end extends beyond the distal end of the outer guiding catheter, the inner guiding catheter capable of forming a secondary curve near its distal end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A multi-catheter guiding system for accessing a body cavity comprising:
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an outer guiding catheter having a proximal end, a distal end and a central lumen therethrough, the outer guiding catheter capable of forming a curve;
an inner guiding catheter positionable at least partially within the central lumen of the outer guiding catheter, the inner guiding catheter capable of forming a curve which differs from the curve of the outer guiding catheter; and
a steering mechanism which forms the curve in one of the guiding catheters upon actuation. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A method of accessing a body cavity comprising:
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positioning an outer guiding catheter having a proximal end, distal end and central lumen therethrough so that the distal end is at least partially within the body cavity;
forming a primary curve in the distal end of the outer guiding catheter;
advancing an inner guiding catheter through the central lumen of the outer guiding catheter; and
forming a secondary curve in the inner guiding catheter which differs from the primary curve. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A kit for accessing a body cavity:
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a multi-catheter guiding system comprising;
an outer guiding catheter having a proximal end, a distal end and a central lumen therethrough, an inner guiding catheter positionable at least partially within the central lumen;
instructions for using the multi-catheter guiding system, wherein the instructions set forth method steps including;
positioning the outer guiding catheter so that its distal end is at least partially within the body cavity;
forming a primary curve in the distal end of the outer guiding catheter;
advancing the inner guiding catheter through the central lumen of the outer guiding catheter; and
forming a secondary curve in the inner guiding catheter which differs from the primary curve. - View Dependent Claims (59, 60)
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Specification