Patent ID: 11925769
Assignee: PROMEDICA HEALTH SYSTEM, INC.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 17:
18. A method of using a concentric two-tube catheter device including an inner tubular member and an outer tubular member, the method comprising:
sliding the outer tubular member relative to the inner tubular member, via a sliding of a control element attached to the outer tubular member relative to a handle body of the catheter device attached to the inner tubular member, to expose a distal end of the inner tubular member from a distal end of the outer tubular member, the distal end of the outer tubular member providing a first shape, the distal end of the inner tubular member providing a second shape upon exposure thereof, wherein the first shape and the second shape are different;
providing a first fluid to or withdrawing the first fluid from the distal end of the inner tubular member by way of a first flow path through the catheter device after sliding the outer tubular member relative to the inner tubular member to expose the distal end of the inner tubular member from the distal end of the outer tubular member, the first flow path including an interior of the inner tubular member;
providing a second fluid to or withdrawing the second fluid from the distal end of the inner tubular member by way of a second flow path through the catheter device after sliding the outer tubular member relative to the inner tubular member to expose the distal end of the inner tubular member from the distal end of the outer tubular member, the second flow path including an opening formed through the control element from an outer surface thereof to an inner surface thereof and an annular space present between the inner tubular member and the outer tubular member.