Multi-lumen catheter and tip configurations for use therewith
First Claim
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1. A multi-lumen catheter apparatus for use in the simultaneous injection of fluids and aspiration of fluids comprising:
- a hollow elongate outer catheter having an outer wall;
an elongate inner catheter disposed within said outer catheter, defining an annular region therebetween, said inner catheter including an enclosing wall, a septum and a tip, wherein said septurn extends within said enclosing wall of said inner catheter, defining a first and second lumen therein; and
a protective sheath extendable over the entire length of said inner and outer catheters while said apparatus is within a bodily vessel, wherein said protective sheath includes a sealed region at a proximal end of said apparatus and means for limiting the movement of said apparatus trough said region.
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Abstract
An improved multi-lumen catheter with tip configurations for the simultaneous injection and withdrawal of fluids. The multi-lumen catheter includes an outer catheter and an inner catheter. The inner catheter is contained within the outer catheter, extends throughout its length and is bisected by a septum to create two parallel lumens. The inner catheter is secured to the outer catheter and may extend beyond the distal end thereof to promote separation between fluids. The multi-lumen catheter can be supplied with a protective sheath to maintain a sterile environment.
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Citations
27 Claims
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1. A multi-lumen catheter apparatus for use in the simultaneous injection of fluids and aspiration of fluids comprising:
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a hollow elongate outer catheter having an outer wall;
an elongate inner catheter disposed within said outer catheter, defining an annular region therebetween, said inner catheter including an enclosing wall, a septum and a tip, wherein said septurn extends within said enclosing wall of said inner catheter, defining a first and second lumen therein; and
a protective sheath extendable over the entire length of said inner and outer catheters while said apparatus is within a bodily vessel, wherein said protective sheath includes a sealed region at a proximal end of said apparatus and means for limiting the movement of said apparatus trough said region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A multi-lumen catheter apparatus for use in the simultaneous injection of fluids, and aspiration of fluids comprising:
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a bollow elongate outer catheter having an outer wall, wherein said outer catheter tapers from a first diameter to a smaller second diameter at a distal end thereof;
an elongate inner catheter disposed within said outer catheter, defining an annular region therebetween, wherein said inner catheter is secured to said outer catheter proximate said distal tapered end of said outer catheter to substantially center said inner catheter within said outer catheter, wherein said inner catheter includes an enclosing wall, a septum and a tip, wherein said tip of said inner catheter extends longitudinally beyond said distal end of said outer catheter, and wherein said septum extends within said enclosing wall of said inner catheter, defining a first and second lumen therein; and
a protective sheath extendable over the entire length of said inner and outer catheters while said apparatus is within a bodily vessel, wherein said protective sheath includes a sealed region at a proximal end of said apparatus and means for limiting the movement of said apparatus through said region. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification