Multi-lumen central access vena cava filter apparatus and method of using same
First Claim
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1. A central line vena cava filter catheter medical device, comprising:
- a central venous line catheter body having a first opening in communication with a first fluid flow lumen, and a second opening in communication with a second fluid flow lumen; and
a vena cava filter member circumferentially coupled about a distal end of the central venous line catheter body and having a first end coupled circumferentially in fixed relation to the central venous line catheter body and a second end circumferentially moveably coupled to the central venous line catheter body, the vena cava filter member consisting of a plurality of struts configured to form a generally frustroconical proximal section of the vena cava filter member tapering proximally and having proximal interstitial openings, and a generally frustroconical distal section of the vena cava filter member tapering distally and having distal interstitial openings, the frustroconical proximal section having a length that is greater than or less than a length of the frustroconical distal section, each of the proximal interstitial openings having an open surface area either greater than or less than the open surface area of each of the distal interstitial openings;
the vena cava filter member being positioned generally intermediate the first opening and second opening and configured to be expanded in a patient'"'"'s blood vessel such that a transverse dimension of the filter decreases in the direction of the patient'"'"'s blood flow to collect thrombi, wherein the vena cava filter member centers the central venous line catheter body within a blood vessel lumen.
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Abstract
A combined multi-lumen central access catheter and an embolic filter including ports proximal and distal the filter for fluid infusion and/or pressure sensing and infusion ports in the catheter to permit infusion of bioactive agents, flushing agents and/or contrast agents. The embolic filter may be removably coupled to the multi-lumen catheter for temporary placement and retrieval under recommended indications.
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Citations
33 Claims
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1. A central line vena cava filter catheter medical device, comprising:
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a central venous line catheter body having a first opening in communication with a first fluid flow lumen, and a second opening in communication with a second fluid flow lumen; and a vena cava filter member circumferentially coupled about a distal end of the central venous line catheter body and having a first end coupled circumferentially in fixed relation to the central venous line catheter body and a second end circumferentially moveably coupled to the central venous line catheter body, the vena cava filter member consisting of a plurality of struts configured to form a generally frustroconical proximal section of the vena cava filter member tapering proximally and having proximal interstitial openings, and a generally frustroconical distal section of the vena cava filter member tapering distally and having distal interstitial openings, the frustroconical proximal section having a length that is greater than or less than a length of the frustroconical distal section, each of the proximal interstitial openings having an open surface area either greater than or less than the open surface area of each of the distal interstitial openings;
the vena cava filter member being positioned generally intermediate the first opening and second opening and configured to be expanded in a patient'"'"'s blood vessel such that a transverse dimension of the filter decreases in the direction of the patient'"'"'s blood flow to collect thrombi, wherein the vena cava filter member centers the central venous line catheter body within a blood vessel lumen. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An indwelling and removable vena cava filter medical device, comprising:
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a catheter body having a first opening in communication with a first fluid flow lumen, and a second opening in communication with a second fluid flow lumen; and an asymmetrical vena cava filter member positioned generally intermediate the first and second openings of the catheter body and consisting of a plurality of strut members defining interstitial open areas between the strut members and the plurality of strut members configured to form a generally conical proximal filter section and a generally conical distal filter section, the generally conical proximal filter section having a first lateral length, a first height, a first base and an apex projecting proximally relative to the catheter body member and the first base, and the generally conical distal filter section having a second lateral length different from the first lateral length, a second height different from the first height and an apex projecting generally distally relative to the catheter body member and a second base, the generally conical proximal filter section having a plurality of interstitial openings defining an open surface area between the strut members that is different from an open surface area between the strut members of the generally conical distal filter section and the first base and the second base are conjoined about a common circumferential axis; the asymmetrical vena cava filter member being circumferentially coupled about a distal end of the catheter body such that the catheter body passes through the apices of each of the first generally conical proximal filter section and the second generally conical distal filter section, with the generally conical proximal cone section being fixedly coupled in circumferential relation to the catheter body and the generally conical distal filter section being moveably and substantially circumferentially coupled to the catheter body, the filter member configured such that the generally conical distal cone filter section translates along a longitudinal axis of the catheter body during diametric expansion or contraction of the asymmetrical vena cava filter member;
wherein the asymmetrical vena cava filter member centers the central venous line catheter body within a blood vessel lumen. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification