Medical electrical lead having counter fixation anchoring system
AssigneeMedtronic, Inc.
InventorKarel F. A. A. Smits
Life of this patent
Estimating the term…
Abstract
An epicardial lead having an stab-in electrode extending from the bottom thereof in combination with an anchoring system adapted to secure the lead to the heart without the use of complex procedures or tools. In particular the lead achieves stable fixation through the provision of a flexible member moveable between a first position and a second position and a pair of fixation members connected to said flexible member, each fixation member having a distal end and a root, said distal end and root defining a plane said through which said stab-in electrode crosses.
Claims18
An epicardial lead adapted for attaching to a heart comprising:
- a lead body, said lead body having a conductor and an insulating sheath, said lead body having a distal end and a proximal end;
- a electrode mounting attached to said distal end of said lead body;
- a stab-in electrode attached at an angle to said mounting, said electrode having a distal end and a proximal end, said proximal end of said electrode connected to said conductor, said electrode configured to contact said heart;
- and
- a flexible member connected to said electrode mounting, said flexible member having a pair of fixation members thereto, each said fixation member having a distal end and a root, said distal end and root defining a plane through which said stab-in electrode crosses, said flexible member moveable between a first position and a second position wherein in said first position said distal ends of said fixation members are positioned below said stab-in electrode and in said second position said distal ends of said fixation members are positioned above said stab-in electrode.
An epicardial lead adapted for attaching to a heart comprising:
- a lead body, said lead body having a conductor and an insulating sheath, said lead body having a distal end and a proximal end;
- a electrode mounting attached to said distal end of said lead body;
- a stab-in electrode attached at an angle to said mounting, said electrode having a distal end and a proximal end, said proximal end of said electrode connected to said conductor, said electrode configured to contact said heart;
- a flexible member connected to said electrode mounting, said flexible member moveable between a first position and a second position, said flexible member having a spring integral therewith, said flexible member biased towards said first position by said spring;
- and
- a pair of fixation members connected to said flexible member, each said fixation member having a distal end and a root, said distal end and root defining a plane said through which said stab-in electrode crosses.
An epicardial lead adapted for attaching to a heart comprising:
- a lead body, said lead body having a conductor and an insulating sheath, said lead body having a distal end and a proximal end;
- a electrode mounting attached to said distal end of said lead body;
- a stab-in electrode attached at an angle to said mounting, said electrode having a distal end and a proximal end, said proximal end of said electrode connected to said conductor, said electrode configured to contact said heart, said stab-in electrode having means for delivering a drug to said heart;
- a flexible member connected to said electrode mounting, said flexible member moveable between a first position and a second position, said flexible member biased towards said first position;
- and
- a pair of fixation members connected to said flexible member, each said fixation member having a distal end and a root, said distal end and root defining a plane said through which said stab-in electrode crosses.
Dependencies are inferred from the claim text.