Channel forming device with a secured distal extremity
First Claim
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1. A system for forming a channel within a ventricular wall of a patient'"'"'s heart from within a chamber defined by an interior surface of the ventricular wall, comprising:
- a) an elongated, laser energy transmitting system having a distal end for emitting laser energy and being configured for percutaneous delivery by introduction into a peripheral artery and advancement to the interior of the ventrical through the patient'"'"'s vasculature; and
b) at least two distally extending elongated members which are configured to engage the interior surface of the ventricular wall to urge tissue of the ventricular wall between the elongated members toward the distal end of the laser energy transmitting system upon the inward motion thereof to ensure contact between the distal end of the laser energy transmitting system and the interior surface of the ventricular wall when laser energy is emitted from the distal end of the laser energy transmitting system and which are configured so that the elongated members do not pass in front of the distal end of the laser energy transmitting system which emits laser energy; and
c) an actuator operatively coupled to the distally extending elongated members for causing inward motion thereof.
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Abstract
An intravascular device for forming a channel within a patient'"'"'s ventricular wall which engages the tissue of the ventricular wall to prevent undesirable movement of the channel forming device while forming the channel.
71 Citations
8 Claims
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1. A system for forming a channel within a ventricular wall of a patient'"'"'s heart from within a chamber defined by an interior surface of the ventricular wall, comprising:
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a) an elongated, laser energy transmitting system having a distal end for emitting laser energy and being configured for percutaneous delivery by introduction into a peripheral artery and advancement to the interior of the ventrical through the patient'"'"'s vasculature; and b) at least two distally extending elongated members which are configured to engage the interior surface of the ventricular wall to urge tissue of the ventricular wall between the elongated members toward the distal end of the laser energy transmitting system upon the inward motion thereof to ensure contact between the distal end of the laser energy transmitting system and the interior surface of the ventricular wall when laser energy is emitted from the distal end of the laser energy transmitting system and which are configured so that the elongated members do not pass in front of the distal end of the laser energy transmitting system which emits laser energy; and c) an actuator operatively coupled to the distally extending elongated members for causing inward motion thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for forming a channel within a ventricular wall of a patient'"'"'s heart from within a chamber defined by an interior surface of the ventricular wall, comprising:
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a) an elongated, channel forming system having means on a distal end thereof for forming a channel and being configured for percutaneous delivery by introduction into a peripheral artery of the patient and advancement to the interior of the ventrical through the patient'"'"'s vasculature; and b) at least two distally extending elongated members which have distal end configured to engage the interior surface of the ventricular wall and to urge tissue of the ventricular wall between the distal ends of the elongated members toward the distal end of the channel forming system upon the inward motion thereof to ensure contact between the distal end of the channel forming system and the interior surface of the ventricular wall when the channel is being formed and which are configured such that the inward motion thereof is mechanically limited so that the elongated members are prevented from passing in front of a channel path of the channel forming means; and c) an actuator operatively coupled to the distally extending elongated members for causing inward motion thereof.
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Specification