Collarless guide extension catheter

摘要

Embodiments of the disclosure describe an example guide extension catheter. The guide extension catheter may include a proximal shaft having a proximal end, a distal end, the distal end having an attachment region. The guide extension catheter may further include a distal sheath having a proximal end, a distal end and a lumen extending therebetween. The distal sheath may include an outer layer, inner layer and an intermediate reinforcing member disposed between the inner layer and the outer layer. Moreover, the distal sheath is attached to the attachment region adjacent to the reinforcing member.

主权项

1. A guide extension catheter, comprising:
a proximal shaft extending between a proximal end and a distal end, the distal end including an attachment region, the proximal shaft including a proximal shaft portion extending proximally from the attachment region, the proximal shaft portion having a shaft diameter, the attachment region having an attachment region diameter that is less than the shaft diameter; and a distal sheath extending distally from the proximal shaft, the distal sheath having a proximal end, a distal end and a lumen extending therebetween, the distal sheath having a sheath diameter that is greater than the shaft diameter, the distal sheath including an outer layer, an inner layer, and an intermediate reinforcing member disposed between the inner layer and the outer layer; wherein the distal sheath is secured to the proximal shaft via a physical attachment between the reinforcing member and the attachment region; and wherein the proximal shaft portion is axially spaced apart from the distal sheath.