Explantable lead

Details Explantable lead Explantable lead

1997-11-14

1999-05-11

Kamm, William E.

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

N61N1/05

Patent

active

059023295

ABSTRACT:
An extractable lead and method for chronic blood contacting use. The new lead contains a hydrogel coating having a thickness increase greater than 10% when hydrated. A thick coating is used to provide a shear layer so that the coating tears during extraction, either at the coating/lead interface, between layers of the coating itself, or at the coating/tissue interface. Furthermore, because of the flexibility of such a thick coating, contracture of any fibrous capsule that may have formed is not a problem during extraction, since instead of contracting onto the lead, it contracts onto the flexible coating which can be extracted out of the tight capsule.

REFERENCES:
patent: 5324324 (1994-06-01), Vachon et al.
patent: 5713493 (1998-02-01), Lindegren

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