In addition to components a-c above, this catheter system may include a subselective sheath and introducer. The subselective sheath comprises a flexible tubular sheath that has a proximal end, a distal end and a lumen extending therethrough. The introducer is insertable through the lumen of the sheath and has a tapered, non-traumatizing distal portion that protrudes out of and beyond the distal end of the sheath as well as a guidewire lumen extending longitudinally therethrough.

d’un " passe-cathéter" formé d’un guide métallique, d’un perforateur et d’une gaine. Après avoir ponctionné la veine avec l’aiguille, et introduit le guide ...
www.pifo.uvsq.fr/pedagogie/cardio/kt2000.pdf -

Now, I don't know how you say this in French, and you are probably cringing at my attempt, but from trying to understand what "subselective" means in English, I think they are talking about a secondary means of access, i.e. via another vein, rather than "selective" access which is via a main vein (see refs).

http://216.239.59.104/search?q=cache:fT7icpDnuEoJ:www.answer...


Angiographic c.-one through which a contrast medium is injected for visualization of the vascular system of an organ. Such catheters may have preformed ends to facilitate selective locating (as in a renal or coronary vessel) from a remote entry site. They may be named according to the site of entry and destination, such as femoral–renal and brachial–coronary.


Journal of the American College of Cardiology : Percutaneous ...
The flexibility of this catheter is well suited for subselective vein access, such as the middle cardiac vein (which parallels the posterior descending ...
linkinghub.elsevier.com/retrieve/pii/S0735109703003978 - Similar pages

Vascular and Interventional Radiology: Principles and Practices - Google Books Result
by Curtis W. Bakal - 2002 - Medical - 480 pages
On occasion, subselective catheterization can be difficult particularly from a femoral vein approach. Jugular access eases deep catheterization of the ISV, ...
books.google.com/books?isbn=0865776784...

ERRORS IN RENAL VEIN RENIN COLLECTIONS*
subselective. catheterization. of the. right. lower. pole. segmental. branch. revealed. renins. which. were. higher. than. the. main. vein ...
www.ajronline.org/cgi/reprint/122/4/804.pdf - Similar pages


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Note added at 2 hrs (2007-11-25 18:28:52 GMT)
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i.e. selective = renal or coronary vessel


and subselective = a remote entry site??