Patent ID: 11925555
Assignee: TRICARES (SAS)
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 15:
16. A steerable sheath comprising:
an elongated sheath,
at least one actuator,
at least two different sheath steering points,
means for connecting the at least one actuator with the at least two different sheath steering points;
wherein the means for connecting comprises a proximal cable and a distal cable:
a proximal pull ring including an open ring having two spaced apart ends, the proximal pull ring having an open space between the two ends of the open ring, and a distal pull ring, and the distal cable extending through the open space of the proximal pull ring;
wherein the distal cable extends through a first hole in the distal pull ring and returns in the opposite direction through a second hole in the distal pull ring, so that the distal cable has two parallel portions extending through the open space;
wherein the at least two sheath steering points includes a first steering point for bending a first portion of the sheath in a first direction, and a second steering point for bending a second portion of the sheath in an opposite direction,
wherein the steering points allow a distal end of the sheath to be positioned both with respect to:
a) its distance from an implantation sitei and;
b) its angle relative to the implantation site;

wherein the first and second steering points are located 180° from each other and spaced 5 to 10 cm from each other;
wherein the first portion of the sheath comprises a hypotube oriented for bending in the first direction, wherein the hypotube includes a spine connecting spaced apart rings;
wherein the first steering point bends the first portion of the sheath by an arc of greater than 900, wherein the first portion of the sheath is distal relative to the second portion of the sheath.