Forwardly directed fluid jet crossing catheter
First Claim
1. A forwardly directed fluid jet crossing catheter comprising:
- a manifold having a substantially straight tubular section and an off-line tubular section, said substantially straight tubular section having a proximal end and a distal end, said off-line tubular section being connected between said proximal and distal ends of said substantially straight tubular section;
a flexible elongated catheter tube in communication with the substantially straight tubular section, the flexible elongated catheter tube having a proximal end and a distal end;
a hollow tapered tip coupled to said distal end of said flexible elongated catheter tube, said hollow tapered tip having a proximal end and a distal end; and
said flexible elongated catheter tube including therein;
a plug seal near the distal end of the flexible elongated catheter tube, at least the plug seal and the hollow tapered tip forming a high pressure infusion cavity within the hollow tapered tip,an elongated guide wire tube extending from near said proximal end of said substantially straight tubular section, through said plug seal to said distal end of said hollow tapered tip, an opening of the elongated guide wire tube at the hollow tapered tip directed forward of the hollow tapered tip,an elongated high pressure tube extending from said off-line tubular section through said plug seal and emptying into the high pressure infusion cavity within the hollow tapered tip, andsaid elongated guide wire tube having a fluid entry hole in communication with the high pressure infusion cavity, wherein the high pressure tube is configured to deliver high pressure fluid into the high pressure infusion cavity, and from the high pressure infusion cavity to the elongate guide wire tube through the fluid entry hole, the high pressure fluid selectively and forwardly delivered by the opening of the elongated guide wire tube according to a position of a guide wire therein.
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Accused Products
Abstract
A forwardly directed fluid jet crossing catheter having a distally directed cylindrical flow fluid jet stream to cross a chronic total occlusion is set forth. The distal end of the device includes a formable catheter tip region having flexible internal components. Low and high pressure cavities are formed substantially by joined proximal and distal catheter tubes having an adhesive plug seal in common therebetween which partially defines one end of each of the low pressure and high pressure cavities. A guidewire tube and a high pressure tube are aligned along and within the low pressure and high pressure cavities and through the adhesive plug seal. The high pressure tube openly terminates in the high pressure cavity, whereby pressurized fluid transfers from the high pressure cavity in the guidewire tube entry hole to subsequently pass along the guidewire lumen and co-located guidewire to exit as a cylindrical fluid jet stream.
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Citations
21 Claims
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1. A forwardly directed fluid jet crossing catheter comprising:
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a manifold having a substantially straight tubular section and an off-line tubular section, said substantially straight tubular section having a proximal end and a distal end, said off-line tubular section being connected between said proximal and distal ends of said substantially straight tubular section; a flexible elongated catheter tube in communication with the substantially straight tubular section, the flexible elongated catheter tube having a proximal end and a distal end; a hollow tapered tip coupled to said distal end of said flexible elongated catheter tube, said hollow tapered tip having a proximal end and a distal end; and said flexible elongated catheter tube including therein; a plug seal near the distal end of the flexible elongated catheter tube, at least the plug seal and the hollow tapered tip forming a high pressure infusion cavity within the hollow tapered tip, an elongated guide wire tube extending from near said proximal end of said substantially straight tubular section, through said plug seal to said distal end of said hollow tapered tip, an opening of the elongated guide wire tube at the hollow tapered tip directed forward of the hollow tapered tip, an elongated high pressure tube extending from said off-line tubular section through said plug seal and emptying into the high pressure infusion cavity within the hollow tapered tip, and said elongated guide wire tube having a fluid entry hole in communication with the high pressure infusion cavity, wherein the high pressure tube is configured to deliver high pressure fluid into the high pressure infusion cavity, and from the high pressure infusion cavity to the elongate guide wire tube through the fluid entry hole, the high pressure fluid selectively and forwardly delivered by the opening of the elongated guide wire tube according to a position of a guide wire therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification