Laser channeling devices
First Claim
1. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
- a fiber optic conduit adapted for conduit to a source of laser energy; and
a hollow sheath about distal end portion of the fiber optic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein an exterior surface of the lens is sandblasted.
1 Assignment
0 Petitions
Accused Products
Abstract
An optical fiber device for ablating a channel through a plaque deposit or a clot in a blood vessel is described. Laser energy is transmitted through one or a bundle of optical fibers to a quartz or fused silica cylinder, whose distal end surface has been made into a desired shape and sandblasted or carbon coated or both. The cylinder is received with a pocket defined in a sheath which surrounds the optical fibers. Moreover, the cylinder includes a circumferential recess and the sheath includes a circumferential rib which engages into the recess for securing the lens in the pocket. In one embodiment, the cylinder has a cavity formed therein and the distal end of the optical fiber extends into the cavity. In a further embodiment, the device is adapted to be guided along a wire extending through the pocket and an aperture defined in the sheath and/or a channel defined in the cylinder.
-
Citations
34 Claims
-
1. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
-
a fiber optic conduit adapted for conduit to a source of laser energy; and
a hollow sheath about distal end portion of the fiber optic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein an exterior surface of the lens is sandblasted. - View Dependent Claims (2, 3, 4, 5, 7, 8, 9, 10, 11, 12, 13)
-
-
6. The laser device of claim wherein the lens extends beyond the sheath and terminates in a distal end face, a portion of the lens between the end face and the sheath being adapted to absorb a portion of laser energy emitted by the fiber optic conduit.
-
14. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
-
a fiber optic conduit adapted for coupling to a source of laser energy; and
a hollow sheath about distal end portion of the fiber optic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein an exterior surface of the lens is carbon coated.
-
-
15. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
-
a fiber optic conduit adapted for coupling to a source of laser energy; and
a hollow sheath about distal end portion of the fiber optic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein the lens defines a recess adapted to receive the distal end of the fiber optic conduit, and wherein the recess is defined by a peripheral side wall and a convex base.
-
-
16. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
-
a fiber optic conduit adapted for coupling to a source of laser energy; and
a hollow sheath about distal end portion of the fiber antic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein the sheath includes an exterior wall and an aperture defined therein and an elongate wire is adapted to extend through the pocket defined in the sheath and the aperture for guiding the device through the blood vessel.
-
-
17. A laser device for forming a channel through an occlusion in a blood vessel, the device comprising:
-
a fiber optic conduit adapted for coupling to a source of laser energy; and
a hollow sheath about distal end portion of the fiber optic conduit and defining a pocket;
a fiber optic lens in the pocket and adapted to receive and direct the laser energy emitted from the fiber optic conduit to the occlusion;
wherein the sheath includes an exterior wall and an aperture defined therein, the device further comprising a tube extending through the pocket defined in the sheath and the aperture and an elongate wire extends through the tube and the aperture for guiding the device through the blood vessel. - View Dependent Claims (18)
-
-
19. A laser device comprising a fiber optic conduit adapted for coupling to a source of laser energy and a hollow sheath surrounding a distal end of the conduit and defining a pocket;
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
the lens defining a proximal cavity and the distal end of the conduit extending into the cavity;wherein cavity in the lens is defined by a sidewall and a convex bottom. - View Dependent Claims (20, 21, 22, 23, 24)
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
-
25. A laser device comprising a fiber optic conduit adapted for coupling to a source of laser energy and a hollow sheath surrounding a distal end of the conduit and defining a pocket;
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
the lens defining a proximal cavity and the distal end of the conduit extending into the cavity;wherein the lens includes an exterior surface having a circumferential recess defined therein and the sheath includes a distal end having an inner peripheral rib, the rib frictionally engaging the recess in the lens.
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
-
26. A laser device comprising a fiber optic conduit adapted for coupling to a source of laser energy and a hollow sheath surrounding a distal end of the conduit and defining a pocket;
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
the lens defining a proximal cavity and the distal end of the conduit extending into the cavity;wherein the lens includes a proximal end portion surrounded by the sheath and a distal end portion extending outwardly beyond the end of the sheath, the proximal end portion having a thickness whereby the sheath is flush with the distal end portion of the lens.
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
-
27. A laser device comprising a fiber optic conduit adapted for coupling to a source of laser energy and a hollow sheath surrounding a distal end of the conduit and defining a pocket;
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
the lens defining a proximal cavity and the distal end of the conduit extending into the cavity;wherein the sheath includes an exterior wall and an aperture defined therein for receiving an elongate wire.
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
-
28. A laser device comprising a fiber optic conduit adapted for coupling to a source of laser energy and a hollow sheath surrounding a distal end of the conduit and defining a pocket;
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
the lens defining a proximal cavity and the distal end of the conduit extending into the cavity;wherein the sheath includes an exterior wall and an aperture defined therein, the device further comprising a tube extending through the pocket defined in the sheath and the aperture, and wherein an elongate wire extends through the tube and the aperture for guiding the device. - View Dependent Claims (29)
- and a lens mounted in the pocket for directing the laser energy emitted through the conduit;
-
30. A laser device comprising:
-
a source of laser energy;
a fiber optic conduit adapted for coupling to the source of laser energy;
a hollow sheath surrounding a distal end of the conduit and including a peripheral wall defining a distal pocket and an aperture therein in communication with the pocket, the sheath being adapted to slide along a guide wire extending through the pocket and the aperture for guiding the device through a passageway;
a fiber optic lens received in the pocket; and
a tube extending through the pocket defined in the sheath and the aperture, the guide wire extending through the tube and the aperture;
wherein the lens includes a body having an elongate groove defined therein and the tube is received in the groove.
-
-
31. A laser device comprising:
-
a source of laser energy;
a fiber optic conduit adapted for coupling to the source of laser energy;
a hollow sheath surrounding a distal end of the conduit and including a peripheral wall defining a distal pocket and an aperture therein in communication with the pocket, the sheath being adapted to slide along a guide wire extending through the pocket and the aperture for guiding the device through a passageway;
a fiber optic lens received in the pocket; and
a tube extending through the pocket defined in the sheath and the aperture, the guide wire extending through the tube and the aperture;
wherein the lens includes a body having an elongate groove defined therein and a sleeve surrounds the lens, the guide wire extending through the channel defined by the groove and the sleeve.
-
-
32. A laser device comprising:
-
a source of laser energy;
a fiber optic conduit adapted for coupling to the source of laser energy;
a hollow sheath surrounding a distal end of the conduit and including a peripheral wall defining a distal pocket and an aperture therein in communication with the pocket, the sheath being adapted to slide along a guide wire extending through the pocket and the aperture for guiding the device through a passageway;
a fiber optic lens received in the pocket; and
a tube extending through the pocket defined in the sheath and the aperture, the guide wire extending through the tube and the aperture;
wherein the lens defines a channel therethrough, and the wire extends through the channel.
-
-
33. A laser device comprising:
-
a source of laser energy;
a fiber optic conduit adapted for coupling to the source of laser energy;
a hollow sheath surrounding a distal end of the conduit and including a peripheral wall defining a distal pocket and an aperture therein in communication with the pocket, the sheath being adapted to slide along a guide wire extending through the pocket and the aperture for guiding the device through a passageway;
a fiber optic lens received in the pocket; and
a tube extending through the pocket defined in the sheath and the aperture, the guide wire extending through the tube and the aperture;
wherein the lens includes a distal end face and defines an aperture in the distal end face of the lens, and wherein all but the region of the distal end face surrounding the aperture is sandblasted.
-
-
34. A laser device comprising:
-
a source of laser energy;
a fiber optic conduit adapted for coupling to the source of laser energy;
a hollow sheath surrounding a distal end of the conduit and including a peripheral wall defining a distal pocket and an aperture therein in communication with the pocket, the sheath being adapted to slide along a guide wire extending through the pocket and the aperture for guiding the device through a passageway;
a fiber optic lens received in the pocket; and
a tube extending through the pocket defined in the sheath and the aperture, the guide wire extending through the tube and the aperture;
wherein the lens includes a distal end face and defines an aperture in the distal end face of the lens, and wherein all but the region of the distal end face surrounding the aperture is coated with carbon.
-
Specification