US 8,409,273 B2Granted

Multi-catheter steerable guiding system and methods of use

AssigneeAbbott Vascular Inc.

InventorsTroy L. Thornton, Brian B. Martin, Amy R. Raatikka, Yen C. Liao, William D. Kolosi, Pedro Lucatero

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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.

Claims37

Dependent claims

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.

10 more elements

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 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.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/928,298Filed 30 Oct 2007 · continuation
Priority: 9 Apr 1999
Published: US 2008/0051703 A128 Feb 2008
Granted: 2 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification70 codes

A61B 17/122
For ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord: clamps or clips, e.g. for the umbilical cord
A61B 17/00234
Surgical instruments, devices or methods: for minimally invasive surgery
A61B 17/04
Surgical instruments, devices or methods: for suturing wounds; Holders or packages for needles or suture materials
A61B 17/0401
For suturing wounds; Holders or packages for needles or suture materials: suture anchors, buttons or pledgets, i.e. means for attaching sutures to…

Family

Application60/128,690Us provisional application · filed 9 Apr 1999
Application09/544,930Parent of this continuation-in-part · filed 7 Apr 2000
Application09/894,463Parent of this continuation-in-part · filed 27 Jun 2001
Application10/441,508Parent of this continuation · filed 19 May 2003
US 2008/0051703 A1Pre-grant publication · published 28 Feb 2008
US 7,666,204 B2Parent of this continuation
US 6,752,813 B2Parent of this continuation-in-part
Application10/441,508Parent of this continuation-in-part
US 6,629,534 B1Parent of this continuation-in-part
US 2002/0013571 A1Published application
US 2004/0092962 A1Published application
US 8,409,273 B2This patent

From the US filing history. Foreign family members aren’t listed.