Patent ID: 11925775
Assignee: VASOINNOVATIONS INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 19:
20. A method for advancing an introducer catheter towards a treatment site through a lumen in a patient's vasculature, the method comprising: (i) assembling a system comprising the introducer catheter and a transporter catheter, the transporter catheter comprising a shaft having a proximal end and a distal end, the introducer catheter comprising a lumen having a proximal end and a distal end and at least one internal channel for a guidewire, the transporter catheter extending within the lumen of the introducer catheter; (ii) extending the guidewire along the at least one internal channel of the transporter catheter with a proximal end of the guidewire extending beyond the proximal end of the of the transporter catheter and a distal end of the guidewire extending beyond the distal end of the transporter catheter; (iii) advancing the distal end of the guidewire towards a location of interest in the patient's vasculature; (iv) inflating at least one anchor balloon formed on the transporter catheter to anchor the transporter catheter to the introducer catheter; (v) inflating at least one orienting balloon formed proximate the distal end of the transporter catheter, the at least one orienting balloon upon inflation protruding at least partially outside the distal end of the introducer catheter and engaging a wall of a lumen in the patient's vasculature while (vi) advancing the introducer catheter in the patient's vasculature to a location of interest in the patient's vasculature; (vii) deflating the at least one orienting balloon; (viii) deflating the at least one anchor balloon to remove the anchoring between the transporter catheter and the introducer catheter; and (ix) removing the transporter catheter from within the lumen of the introducer catheter; wherein the introducer catheter is a steerable-guide catheter comprising at least one handle assembly, said at least one handle assembly comprising a deflecting mechanism connected to a distal end region of the steerable-guide catheter to apply a deflecting force to maneuver the distal end region of the steerable-guide catheter, and wherein advancing the steerable-guide catheter through the patient's vasculature is performed by selecting a technique from a group consisting of: a. pushing and/or torqueing the steerable-guide catheter; b. pushing and/or torqueing the transporter catheter; c. pushing and/or torqueing both the steerable-guide catheter and the transporter catheter; wherein the at least one anchor balloon is located proximal to the at least one orienting balloon; and wherein the shaft comprises a plurality of segments having varying degrees of hardness, and a degree of hardness of the varying degrees of hardness of a segment of the shaft located between the at least one orienting balloon and the at least one anchor balloon is less than the degree of hardness of the varying degrees of hardness of the segment of the shaft located between the at least one anchor balloon and the proximal end of the transporter catheter.