Reduced profile central venous access catheter with vena cava filter and method

Abstract

A central access vena cava filter catheter having a multi-lumen catheter body with plural longitudinally extending parallel lumens within the single catheter body, a vena cava filter member disposed at a distal end of the catheter body and an outer sheath concentrically disposed about the multi-lumen catheter body and the vena cava filter member. The vena cava filter member may be removably coupled to the multi-lumen catheter for temporary placement and retrieval under recommended indications.

What is claimed is: 
     
         1 . A multi-lumen catheter comprising:
 a catheter body member, a filter member, and an outer catheter sheath, the catheter body member having therein a first central lumen having a first transverse lumen profile located centrally within catheter body member, a second lumen having a second transverse lumen profile, and a third lumen having a third transverse lumen profile, wherein the second transverse lumen profile and the third transverse lumen profile are different in size relative to the first transverse lumen profile, wherein each of the first central lumen, the second lumen, and the third lumen are spaced apart in a radial configuration and are parallel relative to each other within the catheter body member, and each of the first central lumen, the second lumen, and the third lumen having a proximal opening and a distal opening;   the catheter body member further comprises a proximal end and a distal end, wherein the distal end has a relatively smaller diametric profile than the proximal end;   at least one of a plurality of medical sensors operably coupled to the catheter body member;   the filter member is coupled to the distal end of the catheter body member and further comprises a plurality of strut members with a deployed configuration and a collapsed configuration; and   the outer catheter sheath disposed concentrically about at least a longitudinal portion of the catheter body member, in spaced apart relationship with the catheter body member forming a fluid passageway between an inner surface of the outer catheter sheath and an outer surface of the catheter body member.   
     
     
         2 . The multi-lumen catheter of  claim 1 , further comprising an atraumatic tip at the distal end of the catheter body member. 
     
     
         3 . The multi-lumen catheter of  claim 2 , wherein the atraumatic tip further comprises a radiopaque marker. 
     
     
         4 . The multi-lumen catheter of  claim 1 , further comprising a first hub member coupled in fluid flow communication with a proximal end of the outer catheter sheath and a second hub member coupled in fluid flow communication with a proximal end of the catheter body member, the first hub member and the second hub member configured to removably couple to each other in a fluid-tight manner and translate relative to each other along a longitudinal axis of the multi-lumen catheter. 
     
     
         5 . The multi-lumen catheter of  claim 1 , wherein the at least one of a plurality of medical sensors further comprises a first medical sensor located at the proximal end of the catheter body member and a second medical sensor located at the distal end. 
     
     
         6 . The multi-lumen catheter of  claim 5 , wherein the first medical sensor and the second medical sensor is one of a pressure transducer, a flow sensor, an analyte sensor, a color sensor, or an optical sensor. 
     
     
         7 . The multi-lumen catheter of  claim 1 , wherein the plurality of strut members further comprises a primary strut, a secondary strut, and a tertiary strut, the primary strut being extending between a distal end the filter member and a position substantially intermediate a longitudinal axis of the filter member, the secondary struts and tertiary struts extending between the position substantially intermediate the longitudinal axis of the filter member and a proximal end of the filter member. 
     
     
         8 . The multi-lumen catheter of  claim 7 , wherein the secondary struts have a shorter length than the tertiary struts. 
     
     
         9 . The multi-lumen catheter of  claim 7 , further comprising a circumferential ring member positioned intermediate the primary struts on the distal end of the filter member and the secondary and tertiary struts on the proximal end of the filter member. 
     
     
         10 . The multi-lumen catheter of  claim 9 , wherein the circumferential ring member further has an undulating configuration defining peaks and valleys. 
     
     
         11 . The multi-lumen catheter of  claim 10 , wherein the valleys of the circumferential ring member further comprise substantially U-shaped sections. 
     
     
         12 . The multi-lumen catheter of  claim 1 , wherein the catheter body member further comprises a fourth lumen and a fifth lumen, both the fourth lumen and the fifth lumen having a fourth and fifth transverse lumen profile respectively, and the fourth and fifth transverse lumen profiles are the same size. 
     
     
         13 . The multi-lumen catheter of  claim 12 , wherein the fourth and fifth lumens are spaced apart in a radial configuration from the first central lumen, the second lumen, and the third lumen.