US 12,127,804 B1
Simplified highly maneuverable surgical catheter and bronchoscope
Gregory P. Schmitz, Los Gatos, CA (US)
Assigned to Syncrobotix, Inc., Los Gatos, CA (US)
Filed by Gregory P. Schmitz, Los Gatos, CA (US)
Filed on Mar. 2, 2024, as Appl. No. 18/593,893.
Application 18/593,893 is a continuation in part of application No. 18/422,454, filed on Jan. 25, 2024.
Application 18/422,454 is a continuation in part of application No. 18/324,493, filed on May 26, 2023, granted, now 11,950,765.
Claims priority of provisional application 63/618,832, filed on Jan. 8, 2024.
Claims priority of provisional application 63/603,757, filed on Nov. 29, 2023.
Claims priority of provisional application 63/499,218, filed on Apr. 29, 2023.
Int. Cl. A61B 1/00 (2006.01); A61B 18/14 (2006.01); A61B 34/00 (2016.01); A61B 34/30 (2016.01)
CPC A61B 34/30 (2016.02) [A61B 18/1492 (2013.01); A61B 34/71 (2016.02); A61B 2034/301 (2016.02); A61B 2034/303 (2016.02); A61B 2034/715 (2016.02)] 19 Claims
OG exemplary drawing
 
1. A multi-stage catheter device for traversing internal body passages, said multi-stage catheter device comprising:
a distal stage hollow catheter and a different proximal stage hollow catheter;
said different proximal stage hollow catheter comprising a hollow torque shaft configured to receive torque from a rotary shaft actuator;
one end of said distal stage hollow catheter affixed to an end of said hollow torque shaft by at least an isolation transition coupler;
said isolation transition coupler configured to traverse an internal body passage;
said isolation transition coupler comprising a hollow cylindrical housing with at least one distal coil stop, said isolation transition coupler configured to act as a joint between one end of said distal stage hollow catheter and said hollow torque shaft so that torque applied to said hollow torque shaft is conveyed to said distal stage hollow catheter;
said device further comprising conduits comprising at least one tensioning cable extending along said catheter from said proximal stage to said distal stage, each said tensioning cable comprising a steering cable
each said steering cable configured to receive tension force from a distal stage tensioning actuator, said distal stage tensioning actuator further configured with a rotary shaft actuator to rotate at least said steering cable in a 1:1 ratio with any rotation of at least said distal stage hollow catheter induced by said torque from said rotary shaft actuator;
said hollow torque shaft, said distal stage hollow catheter and said isolation transition coupler further comprising a working channel configured to convey at least one other conduit through said proximal stage hollow catheter and said distal stage hollow catheter to at least a distal tool plate mounted on a distal end of said distal stage hollow catheter;
wherein said at least one distal stage steering cable is configured to convey distal stage steering force to said distal tool plate;
said at least one distal stage steering cable further configured to move said distal tool plate and said distal stage catheter according to said distal stage steering force.