Expansile device for use in blood vessels and tracts in the body and tension application device for use therewith and method
First Claim
1. A device for expansion within a blood vessel having a wall defining a lumen in the body comprising a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member and movable between contracted and expanded configurations, said expansile member in the expanded configuration having distal and proximal surfaces, a deformable membrane carried by the first elongated tubular member, said deformable membrane being formed so as to be capable of expanding to have a first layer overlying the distal surface of the expansile member in the expanded configuration and a second layer underlying the proximal surface of the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the first elongated tubular member and coupled to the expansile member, said deployment means being adapted to be operated by the human hand for controlling movement of the expansile member between the contracted configuration permitting introduction into a lumen of a blood vessel and the expanded configuration within the lumen of the blood vessel, and thereafter to the contracted configuration permitting removal from the blood vessel.
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Accused Products
Abstract
A device for expansion within a blood vessel having a wall defining a lumen in the body. The device comprises a first elongate tubular member having proximal and distal extremities and having a longitudinal axis. An expansile member is carried by the distal extremity of the first elongate tubular member and is movable between contracted and expanded positions. The expansile member has a predetermined configuration in the expanded position. A deformable membrane covers the expansile member and is sized so as to be capable of overlying and underlying the expansile member in the expanded position. Deployment means are carried by the proximal extremity of the first elongate tubular member and are adapted to be operated by the human hand for controlling movement of the expansile member between the contracted and expanded positions.
307 Citations
57 Claims
- 1. A device for expansion within a blood vessel having a wall defining a lumen in the body comprising a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member and movable between contracted and expanded configurations, said expansile member in the expanded configuration having distal and proximal surfaces, a deformable membrane carried by the first elongated tubular member, said deformable membrane being formed so as to be capable of expanding to have a first layer overlying the distal surface of the expansile member in the expanded configuration and a second layer underlying the proximal surface of the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the first elongated tubular member and coupled to the expansile member, said deployment means being adapted to be operated by the human hand for controlling movement of the expansile member between the contracted configuration permitting introduction into a lumen of a blood vessel and the expanded configuration within the lumen of the blood vessel, and thereafter to the contracted configuration permitting removal from the blood vessel.
- 30. A device for being expanded within a blood vessel having a wall defining a lumen in the body comprising an elongated tubular body having proximal and distal extremities and having a longitudinal axis, said elongated tubular body further comprising first, second and third elongated tubular members, each of said tubular members having proximal and distal extremities and a longitudinal axis and having a lumen defining an inner wall and extending from the proximal to the distal extremity of each of said tubular members, the first elongated tubular member having a diameter being sized so that it can be disposed within the lumen of the second elongated tubular member thereby defining a first space between the first and second elongated tubular members, the second elongated tubular member having a diameter being sized so that it can be disposed within the lumen of the third elongated tubular member thereby defining a second space between the second and third elongated tubular members, an expansile member carried by the distal end of said elongated tubular body and movable between contracted and expanded configurations, a deformable membrane carried by said elongated tubular body, said deformable membrane being sized so as to be capable of expanding to have a first layer underlying and a second layer overlying the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the elongated tubular body and adapted to be operated by the human hand for controlling movement of the expansile member between the contracted and expanded configurations.
- 40. A device for applying tension on a catheter extending into a puncture in the wall of the blood vessel underlying the skin of a patient, the catheter having proximal and distal extremities and an expansile assembly secured to the distal extremity comprising a fixture having a base adapted to rest on the skin of the patient, a movable arm pivotally mounted on the base and means mounted on the arm for releasably grasping the proximal extremity of the catheter and means carried by the base and engaging the arm to yieldably urge the arm in a direction away from the skin of the patient whereby a tensioning force is applied to the catheter to attempt to withdraw the catheter from the puncture so that the expansile assembly is retained in engagement with the wall of the vessel at the puncture.
- 45. A method for percutaneously expanding a device within a blood vessel having a wall defining a lumen in the human body, by use of a device having a first elongated tubular member having proximal and distal extremities and a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member, a deformable membrane carried by said first elongated tubular member, said expansile member being movable between contracted and expanded configurations and said membrane being formed so as to be capable of expanding to have a first layer underlying and a second layer overlying the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the of the first elongated member and adapted to be operated by the human hand for controlling movement of the expansile member between contracted and expanded configurations, the method comprising introducing the distal extremity of the first elongate tubular member and the expansile member carried thereby through the wall of the vessel so that the expansile member is disposed within the lumen of the vessel, moving the expansile assembly from a contracted to an expanded configuration and pulling the first elongated tubular member proximally to bring the expansile member into engagement with the wall in the lumen of the vessel.
- 47. A method for percutaneously expanding a device in a blood vessel having a wall defining a lumen in the human body by use of a device having a elongated tubular body having proximal and distal extremities and having a longitudinal axis, said elongated tubular body having a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, said first elongated tubular member having a lumen extending from the proximal to the distal extremity, a second elongated tubular member having proximal and distal extremities and having a longitudinal axis and having an inner wall defining a lumen extending from the proximal extremity to the distal extremity of the second elongated tubular member, said first elongated tubular member being nested within the lumen of the second elongated tubular member thereby defining a first space between the first elongated tubular member and the inner wall of said second elongated tubular member, a third elongated tubular member having proximal and distal extremities and having a longitudinal axis and having an inner wall defining a lumen extending from the proximal to the distal extremity of said third elongated tubular member, said second elongated tubular member being nested within the lumen of the third elongated tubular member thereby defining a second space between the second elongated tubular member and the inner wall of said third elongated tubular member, an expansile member carried by the distal end of said elongated tubular body and movable between contracted and expanded configurations, a deformable membrane carried by the first elongated tubular member, said membrane being sized so as to be capable of overlying and underlying the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the elongated tubular body and adapted to be operated by the human hand, the method comprising introducing the distal extremity of the first elongated tubular member and the expansile member through the wall into the lumen of the vessel so that the expansile member is disposed distally of the wall of the vessel, moving the expansile member from a contracted configuration to an expanded configuration, pulling the first elongated tubular member proximally to bring the expansile member into engagement with the wall of the vessel and waiting for a predetermined amount of time, thereafter moving the expansile member from the expanded configuration to a contracted configuration and removing the device from the vessel.
- 51. The device as in 50 wherein said membrane is formed to permit movement of the expansile member within the membrane and to constrain said expansile member from the free state configuration into said expanded configuration during movement between contracted and expanded configurations.
- 53. A device for expansion within a blood vessel having a wall defining a lumen in the body comprising a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member and movable between contracted and expanded configurations, said expansile member being constructed essentially of a superelastic material having a free state and having a configuration in the free state which has a substantially different configuration than the expanded configuration of said expansile member, a deformable membrane at least partially covering the expansile member in the expanded configuration, said membrane being formed to permit movement of the expansile member within the membrane and to constrain said expansile member from the substantially different free state configuration into said expanded configuration during movement between contracted and expanded configurations and deployment means carried by the proximal extremity of the first elongated tubular member and coupled to the expansile member, said deployment means being adapted to be operated by the human hand for controlling movement of the expansile member between the contracted and expanded configurations.
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55. A device for expansion within a blood vessel having a wall defining a lumen in the body comprising a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member and movable between contracted and expanded configurations, a deformable membrane at least partially covering the expansile member, said deformable membrane being sized so as to be capable of expanding as the expansile member moves from the contracted configuration to the expanded configuration and deployment means carried by the proximal extremity of the first elongated tubular member and directly connected to the expansile member, said deployment means being adapted to be capable of moving the expansile member between the contracted and expanded configurations.
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56. A device for expansion within a blood vessel having a wall defining a lumen in the body comprising a first elongated tubular member having proximal and distal extremities and having a longitudinal axis, an expansile member carried by the distal extremity of the first elongated tubular member and movable between contracted and expanded configurations, a deformable membrane carried by the distal extremity of said first elongated tubular member, said deformable membrane being sized so as to be capable of expanding to have a first layer underlying and a second layer overlying the expansile member in the expanded configuration and deployment means carried by the proximal extremity of the first elongated tubular member and coupled to the expansile member, said deployment means being adapted to be operated by the human hand for controlling movement of the expansile member between the contracted and expanded configurations.
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57. A device for expansion within a vessel having a wall defining a lumen in the body comprising an elongated tubular member having proximal and distal extremities and having a lumen extending from the proximal extremity to the distal extremity and having a longitudinal axis, a sock-shaped flexible membrane having an open end secured to the distal extremity of the elongated tubular member, an expansile member free of the sock-shaped flexible membrane slidably mounted in the lumen in the elongated tubular member for movement into and out of the lumen and into and out of said sock-shaped membrane, said expansile member having a configuration so that when it is moved out of the lumen it will expand to engage the sock-shaped flexible membrane and serve to move the sock-like flexible membrane into a disk-like shape aligned generally in a plane perpendicular to the elongated tubular member, and push-pull means disposed within the lumen and secured to the expansile member for moving said expansile member into and out of said lumen in the elongated tubular member, said push-pull means being accessible from the proximal extremity of the elongated tubular member.
Specification