Changing catheter into steering tool
AssigneeBendit Technologies Ltd.
InventorsOz Cabiri, Alejandro Berenstein
Life of this patent
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Abstract
A method of changing a catheter into a distal steering tool catheter includes adding to an existing catheter a tube assembly that passes through the catheter, the tube assembly including an internal tube and an external tube whose distal ends are coupled to each other and which are arranged for longitudinal axial movement relative to one another, and providing a tube manipulator coupled to the tube assembly, which is operative to cause relative axial movement of the internal and external tubes and bending of a distal portion of at least one of the internal and external tubes.
Claims4
A method of reaching a body lumen comprising:
- adding to an existing catheter a tube assembly that passes through said catheter, said tube assembly comprising an internal tube and an external tube whose distal ends are coupled to each other and which are arranged for longitudinal axial movement relative to one another;
- coupling a tube manipulator to said tube assembly, said tube manipulator being operative to cause relative axial movement of said internal and external tubes and bending of a distal portion of at least one of said internal and external tubes.
- inserting the tube assembly and the catheter together into a body lumen;
- using said tube manipulator to bend the distal portion of said tube assembly into a bent shape, said catheter also being bent into said bent shape;
- advancing said tube assembly and said catheter in the bent shape to a first position in the body lumen;
- and
- creating relative movement between the tube assembly and the catheter so that at least one of the tube assembly and the catheter reaches a second position in the body lumen.
An assembly comprising:
- a tube assembly that passes through a catheter, said tube assembly comprising an internal tube and an external tube whose distal ends are coupled to each other and which are arranged for longitudinal axial movement relative to one another;
- a tube manipulator coupled to said tube assembly, which is operative to cause relative axial movement of said internal and external tubes and bending of a distal portion of at least one of said internal and external tubes;
- and
- a spacer comprising a proximal face and a distal face coupled to each other by a spacing member, said spacer being configured for coupling to said tube assembly, said tube manipulator and said catheter, such that said proximal face abuts against a portion of said tube manipulator and said distal face abuts against a proximal portion of said catheter, such that said tube assembly is locked at a defined axial orientation relative to said catheter.
Dependencies are inferred from the claim text.