Multi-catheter steerable guiding system and methods of use
First Claim
1. A multi-catheter guiding system for treating valvar regurgitation in a patient'"'"'s heart, said system 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;
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,wherein at least one of the distal ends of either the outer guiding catheter or the inner guiding catheter comprises a reinforced region, the reinforced region having greater column strength than another region of the inner or outer guide catheter; and
a delivery catheter shaft at least partially disposed in the central lumen of the inner guiding catheter, the delivery catheter shaft comprising;
a proximal end, a distal end and a central lumen therethrough;
a support coil disposed in the central lumen of the delivery catheter shaft;
a compression coil having an intermediate portion floating freely in the central lumen of the delivery catheter shaft;
an actuator rod having an intermediate portion floating freely in the central lumen of the delivery catheter shaft;
a tension cable having an intermediate portion floating freely in the central lumen of the delivery catheter shaft;
a lock line shaft having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; and
a proximal element line shaft having an intermediate portion floating freely in the delivery catheter shaft.
1 Assignment
0 Petitions
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
37 Claims
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1. A multi-catheter guiding system for treating valvar regurgitation in a patient'"'"'s heart, said system 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; 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, wherein at least one of the distal ends of either the outer guiding catheter or the inner guiding catheter comprises a reinforced region, the reinforced region having greater column strength than another region of the inner or outer guide catheter; and a delivery catheter shaft at least partially disposed in the central lumen of the inner guiding catheter, the delivery catheter shaft comprising; a proximal end, a distal end and a central lumen therethrough; a support coil disposed in the central lumen of the delivery catheter shaft; a compression coil having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; an actuator rod having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; a tension cable having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; a lock line shaft having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; and a proximal element line shaft having an intermediate portion floating freely in the delivery catheter shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A multi-catheter guiding system for treating valvar regurgitation in a patient'"'"'s heart, said system 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; a steering mechanism which forms the curve in one of the guiding catheters upon actuation, wherein at least one of the distal ends of either the outer guiding catheter or the inner guiding catheter comprises a reinforced region, the reinforced region having greater column strength than another region of the inner or outer guide catheter; and a delivery catheter shaft at least partially disposed in the central lumen of the inner guiding catheter, the delivery catheter shaft comprising; a proximal end, a distal end and a central lumen therethrough; a support coil disposed in the central lumen of the delivery catheter shaft; a compression coil having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; an actuator rod having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; a tension cable having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; a lock line shaft having an intermediate portion floating freely in the central lumen of the delivery catheter shaft; and a proximal element line shaft having an intermediate portion floating freely in the delivery catheter shaft. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification