Steerable unitary infusion catheter/guide wire incorporating detachable infusion port assembly
First Claim
Patent Images
1. A steerable infusion catheter/guide wire, comprising:
- a) an elongated cannula symmetrical about a longitudinal axis and having open proximal and distal end portions;
b) an infusion port assembly symmetrical about said longitudinal axis and sealingly secured detachably to said proximal end portion of said cannula and digitally rotatable to correspondingly rotate said elongated cannula over its entire length; and
c) a flexible distal segment including means interrelated to provide an elongated bendable tubular member generally symmetrical about said longitudinal axis and having an open proximal end portion and an open distal end portion, said open proximal end portion having its open proximal end concentrically secured within the open distal end portion of said elongated cannula.
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Accused Products
Abstract
Medical guidewires and catheters include tubular bodies having coils at their distal ends to permit steering through the vasculature. The guidewires and catheters are useful for delivering fluids to a target site, draining body fluids from a target site, and are particularly useful for the infusion of medicaments to sites within the body.
74 Citations
35 Claims
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1. A steerable infusion catheter/guide wire, comprising:
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a) an elongated cannula symmetrical about a longitudinal axis and having open proximal and distal end portions; b) an infusion port assembly symmetrical about said longitudinal axis and sealingly secured detachably to said proximal end portion of said cannula and digitally rotatable to correspondingly rotate said elongated cannula over its entire length; and c) a flexible distal segment including means interrelated to provide an elongated bendable tubular member generally symmetrical about said longitudinal axis and having an open proximal end portion and an open distal end portion, said open proximal end portion having its open proximal end concentrically secured within the open distal end portion of said elongated cannula. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. As an article of manufacture, a three-part assembly for use with elongated cylindrical members such as rods or tubes enabling slidably mounting said three-part assembly in assembled form onto said cylindrical member and thereafter selectively locking said three-part assembly immovably to said cylindrical member, comprising:
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a) a gland symmetrical about a longitudinal axis and including a tubular cylindrical wall member having screw threads on its inner periphery and a transverse end wall closing one end of said tubular cylindrical member and having a bore therethrough concentric to said longitudinal axis for slidably receiving therethrough said rod or tube; b) a cylindrical fitting symmetrical about said longitudinal axis and having a tubular member having screw threads on its outer periphery selectively engageable with said screw threads on said gland and a distal end wall having a central bore therethrough and a distal end surface having a conical recess therein communicating at its apex end with said central bore; and c) seal means having a compressible body mounted in said conical recess so that a portion of said compressible body projects out of the base of said conical recess and having a central aperture therethrough having a diameter at least as large as the diameter of said central bore, whereby when said gland and said cylindrical fitting are rotated to advance said fitting into said gland said seal means is compressed and the diameter of said aperture through said compressible body is reduced whereby a rod or tube projecting through said aperture is resiliently impinged sealingly by said seal means, whereby said three-part assembly is locked onto a red or tube extending through said assembly. - View Dependent Claims (32, 33, 34, 35)
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Specification