Intravascular catheter having combined imaging abrasion head
First Claim
Patent Images
1. An intravascular catheter for removing stenotic material from a patient'"'"'s vascular system, said catheter comprising:
- an elongate catheter body having proximal and distal ends;
a housing secured to the distal end of the catheter body, said housing having an aperture therethrough;
a head substantially within the housing for abrading stenotic material that penetrates said aperture, whereby abraded stenotic material is captured within the housing; and
means internal the catheter for withdrawing abraded material from within the housing.
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Accused Products
Abstract
Front-end and side-on intravascular catheters are described that comprise an abrasive head contained substantially within a housing. Aspiration means and flushing means are connected to the region of grinding to remove dislodged debris. A preferred embodiment has the abrasive surface of a rotatable head comprised of diamond powder. Another preferred embodiment has an ultrasonic transducer affixed to the head to permit transluminal imaging of the site of occlusion.
168 Citations
27 Claims
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1. An intravascular catheter for removing stenotic material from a patient'"'"'s vascular system, said catheter comprising:
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an elongate catheter body having proximal and distal ends; a housing secured to the distal end of the catheter body, said housing having an aperture therethrough; a head substantially within the housing for abrading stenotic material that penetrates said aperture, whereby abraded stenotic material is captured within the housing; and means internal the catheter for withdrawing abraded material from within the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An intravascular catheter for removing stenotic material from a patient'"'"'s vascular system, said catheter comprising:
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an elongate catheter body having proximal and distal ends; a housing attached to the distal end of the catheter body, said housing having an open interior and an aperture therethrough; a rotatable member substantially within the housing for abrading stenotic material that penetrates the aperture so that abraded material collects within the housing; means for rotating the rotatable member; and means within the catheter body for withdrawing abraded material from within the housing. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An intravascular catheter for removing stenotic material from a patient'"'"'s vascular system, said catheter comprsing:
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an elongate catheter body having proximal and distal ends; a housing secured to the distal end of the catheter body, said housing having an aperture therethrough; a head substantially within the housing for abrading stenotic material that penetrates said aperture, whereby abraded stenotic material is captured within the housing; means internal to the catheter for withdrawing abraded material from within the housing; and ultrasonic means attached to the head for imaging the vascular system. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification