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Autonomously controllable pull wire injection catheter, robotic system comprising said catheter and method for operating the same

  • US 10,166,368 B2
  • Filed: 09/21/2017
  • Issued: 01/01/2019
  • Est. Priority Date: 09/21/2016
  • Status: Active Grant
First Claim
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1. Autonomously controllable pull wire injection catheter (1) comprising an outer catheter guide (2, 33) having an outer catheter guide casing (39) and an inner operating catheter (3, 31) having an inner operating catheter casing (16), wherein the inner operating catheter (3, 31) comprises a catheter handle (30), a catheter tip (10), at least one needle (5) that is connected to at least one source of medicinal solution via at least one needle channel (4, 26), at least one contact force sensor (9a-f, 25), at least one electrode (7, 24), at least four actuator driven pull wires (12-15, 20-23) for moving the tip (10) of the inner operating catheter (3, 31), wherein the inner diameter of the outer catheter guide casing (39) is larger than the outer diameter of the inner operating catheter casing (16), characterized in that the inner operating catheter (3, 31) is adapted to be controlled by a microcontroller, wherein the at least one electrode (7, 24) and the at least one contact force sensor (9a-f, 25) are adapted for data exchange with the microcontroller, and wherein the at least four actuator driven pull wires (12-15, 20-23) are attached inside the inner operating catheter (3, 31) perpendicular to each other at a pre-defined distance from the tip (10) in the distal region (6).

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