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US 11,883,309 B2Granted
Directional stent for accessing extravascular spaces
AssigneeCerevasc, Inc.
InventorAdel M. Malek
Life of this patent
Estimating the term…
Abstract
An extravascular access system includes a tubular stent configured to be deployed in a blood vessel, the stent having a sidewall and a proximal end opening and an internal scaffolding comprising one or more structural members, and an elongate access catheter having a distal end portion configured to access the blood vessel wherein when the stent is deployed in the blood vessel, and the distal end portion of the catheter is inserted into the proximal end opening of the stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the blood vessel.
Claims15
A neurovascular venous access system, comprising:
- a tubular stent configured to be deployed in a venous sinus, the tubular stent having a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the venous sinus,
- wherein when the stent is deployed in the venous sinus, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter towards a wall of the venous sinus,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent,
- wherein the one or more internal structural members of the tubular stent include a first directional loop having a diameter sized to accommodate passage of the distal end portion of the catheter, and wherein the passage of the distal end portion of the catheter through the first directional loop deflects a trajectory of the distal end portion of the catheter at an angle relative to the longitudinal axis of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent further includes a second directional loop having a diameter sized to accommodate passage of the distal end portion of the catheter, and wherein the passage of the distal end portion of the catheter through the first directional loop deflects a trajectory of the distal end portion catheter through the second directional loop.
4 more elements
An etravascular access system, comprising:
- a tubular stent configured to be deployed in a body lumen, the tubular stent having
- a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the body lumen,
- wherein when the tubular stent is deployed in the body lumen, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the body lumen,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is at least 45° relative to the longitudinal axis of the tubular stent.
4 more elements
A neurovascular venous access system, comprising:
- a tubular stent configured to be deployed in a venous sinus, the tubular stent having a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the venous sinus,
- wherein when the stent is deployed in the venous sinus, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter towards a wall of the venous sinus,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 5° to 20° relative to the longitudinal axis of the tubular stent.
3 more elements
A neurovascular venous access system, comprising:
- a tubular stent configured to be deployed in a venous sinus, the tubular stent having a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the venous sinus,
- wherein when the stent is deployed in the venous sinus, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter towards a wall of the venous sinus,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 20° to 45° relative to the longitudinal axis of the tubular stent.
3 more elements
A neurovascular venous access system, comprising:
- a tubular stent configured to be deployed in a venous sinus, the tubular stent having a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the venous sinus,
- wherein when the stent is deployed in the venous sinus, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter towards a wall of the venous sinus,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 45° to 90° relative to the longitudinal axis of the tubular stent.
3 more elements
A neurovascular venous access system, comprising:
- a tubular stent configured to be deployed in a venous sinus, the tubular stent having a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the venous sinus,
- wherein when the stent is deployed in the venous sinus, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter towards a wall of the venous sinus,
- the one or more internal structural members comprising a plurality of wires and a plurality of directional loops, wherein each directional loop of the plurality of directional loops is fixedly coupled to at least one wire and respectively angularly oriented to deflect the distal end portion of the catheter towards the wall of the venous sinus.
2 more elements
An extravascular access system, comprising:
- a tubular stent configured to be deployed in a body lumen, the tubular stent having
- a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the body lumen,
- wherein when the tubular stent is deployed in the body lumen, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the body lumen,
- the one or more internal structural members comprising a plurality of wires and a plurality of directional loops, wherein each directional loop of the plurality of directional loops is fixedly coupled to at least one wire of the plurality of wires and respectively angularly oriented to define a pathway and deflect the distal end portion of the catheter towards the wall of the body lumen.
3 more elements
An extravascular access system, comprising:
- a tubular stent configured to be deployed in a body lumen, the tubular stent having
- a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the body lumen,
- wherein when the tubular stent is deployed in the body lumen, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the body lumen,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 5° to 20° relative to the longitudinal axis of the tubular stent.
4 more elements
An extravascular access system, comprising:
- a tubular stent configured to be deployed in a body lumen, the tubular stent having
- a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the body lumen,
- wherein when the tubular stent is deployed in the body lumen, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the body lumen,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 20° to 45° relative to the longitudinal axis of the tubular stent.
4 more elements
An extravascular access system, comprising:
- a tubular stent configured to be deployed in a body lumen, the tubular stent having
- a sidewall defining a lumen, a proximal end opening, and an internal scaffolding disposed in the lumen and comprising one or more internal structural members;
- and
- an elongate access catheter having a distal end portion configured to access the body lumen,
- wherein when the tubular stent is deployed in the body lumen, and the distal end portion of the catheter is inserted into the proximal end opening of the tubular stent, the one or more internal structural members of the stent deflect the distal end portion of the catheter towards a wall of the body lumen,
- wherein the tubular stent defines a longitudinal axis, and wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through an opening in the sidewall of the tubular stent, and
- wherein the one or more internal structural members of the tubular stent deflect the distal end portion of the catheter through the sidewall opening of the tubular stent at an angle that is 45° to 90° relative to the longitudinal axis of the tubular stent.
4 more elements
Dependencies are inferred from the claim text.