Drug dispensing irrigatable electrode
First Claim
1. An endocardial pacing lead suitable for chronic implantation comprising:
- an insulative outer sheath having a proximal end and a distal end;
a first conductor having a proximal end and a distal end fixedly mounted within said outer sheath;
a fluid resistant inner sheath having a proximal end, a distal end, and an interior lumen, fixedly mounted within said outer sheath;
a first electrode electrically coupled to the distal end of said first conductor and fixedly attached to the distal end of said outer sheath, said first electrode having an exterior surface exposed to the exterior of said outer sheath and at least one aperture open to both the exterior surface of said electrode and to the lumen of said inner sheath;
a first electrical connector electrically coupled to the proximal end of said first conductor and fixedly attached to said outer sheath; and
an implantable fluid chamber fixedly attached to the proximal end of said inner sheath and in fluid communication with the lumen of said inner sheath.
1 Assignment
0 Petitions
Accused Products
Abstract
A transvenous pacing lead suitable for chronic implantation having structure which permits dispensing of drugs or other chemical agents from the ring tip electrode upon physician discretion from implant through chronic implantation. A bipolar, tined endocardial ventricular lead has a plurality of small apertures within the ring tip electrode which are connected by a tube within the lead body to a bladder at the proximal end of the lead. The bladder is detachable to permit a stylet to be passed through the tube to guide the lead during implantation. A reed valve at the distal end of the tube prevents body fluid from entering the tube. A stylet restraint prevents the stylet from damaging the reed valve during implant.
-
Citations
18 Claims
-
1. An endocardial pacing lead suitable for chronic implantation comprising:
-
an insulative outer sheath having a proximal end and a distal end; a first conductor having a proximal end and a distal end fixedly mounted within said outer sheath; a fluid resistant inner sheath having a proximal end, a distal end, and an interior lumen, fixedly mounted within said outer sheath; a first electrode electrically coupled to the distal end of said first conductor and fixedly attached to the distal end of said outer sheath, said first electrode having an exterior surface exposed to the exterior of said outer sheath and at least one aperture open to both the exterior surface of said electrode and to the lumen of said inner sheath; a first electrical connector electrically coupled to the proximal end of said first conductor and fixedly attached to said outer sheath; and an implantable fluid chamber fixedly attached to the proximal end of said inner sheath and in fluid communication with the lumen of said inner sheath. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. An endocardial pacing lead suitable to chronic implantation comprising:
-
an insulative outer sheath having a proximal end and a distal end; a first conductor having a proximal end and a distal end, mounted within said outer sheath; a fluid resistant inner sheath having a proximal end, a distal end and an interior lumen, fixedly mounted within said outer sheath; a first electrode fixedly attached to the distal end of said outer sheath and electrically coupled to said distal end of said first conductor, said electrode having an exterior surface exposed to the exterior of said outer sheath and at least one aperture open to both the interior lumen of said inner sheath and to the exterior surface of said electrode; a first electrical connector fixedly attached to said outer sheath and electrically coupled to the proximal end of said first conductor; and an implantable substantially rigid fluid chamber fixedly attached to the proximal end of said inner sheath and in fluid communication with the lumen of said inner sheath, said fluid chamber comprised of a material which may be sealably punctured percutaneously by a hypodermic syringe whereby fluids may be transferred from said hypodermic syringe to said fluid chamber and thence to said inner sheath and thence through the at least one aperture of said first electrode. - View Dependent Claims (14, 15, 16, 17, 18)
-
Specification