Catheter tip designs and method of manufacture

Details Catheter tip designs and method of manufacture Catheter tip designs and method of manufacture

A - Human Necessities

61

F

A61F 2/06 (2006.01) A61M 25/00 (2006.01)

Patent

CA 2396724

Methods for making a loaded catheter assembly for delivering a sel-expanding stent where the self-expanding stent is carried in a compressed state and the compressed stent has an inside diameter smaller than the outside diameter of the catheter distal tip. The methods can utilize catheter sub-assemblies lacking already attached tips or having partially formed distal tips. A stent can be proximally and co-axially slid over the distal end of the catheter shaft and constrained by a retractable sheath disposed co-axially about the compressed stent. The catheter distal tip can be added or more fully formed after the loading of the stent. Some catheters include a preformed distal conical tip held in position by a heat- shrink film. Other catheters have an elastomeric distal tip waist for slipping over and engaging an outward projection on the catheter shaft distal region. Some catheters are adapted to engage catheter shaft distal threaded regions.

La présente invention concerne un procédé de fabrication d'un ensemble cathéter chargé conçu pour la mise en place d'un stent autodéployant. En l'occurrence, ce stent autodéployant est porté comprimé son diamètre intérieur étant inférieur au diamètre extérieur de la pointe distale du cathéter. Le procédé permet l'utilisation de sous-ensembles cathéters dépourvus de pointes prémontées ou partiellement formées. On peut ainsi faire passer un stent par l'extrémité proximale et l'amener sur l'extrémité distale dans l'axe de la tige du cathéter où il reste maintenu comprimé par une gaine rétractable coaxiale enveloppant le stent comprimé. La pointe distale du cathéter peut être ajoutée ou formée plus complètement après le chargement du stent. Certains cathéters incluent une pointe distale conique préformée, maintenue en position par un film thermo-rétrécissant. La pointe distale d'autres cathéters comportent un étranglement élastomère permettant un emboîtement sur une protubérance externe de la région distale de la tige du cathéter. Certains cathéters sont conçus pour garder un contact au niveau des régions filetées distales de la tige du cathéter.

Affiliated with

Also associated with

Rating

Catheter tip designs and method of manufacture does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catheter tip designs and method of manufacture, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catheter tip designs and method of manufacture will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1939380