Drive shaft seal for a medical electrical lead

Details Drive shaft seal for a medical electrical lead Drive shaft seal for a medical electrical lead

2005-08-16

2005-08-16

Manuel, George (Department: 3762)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical energy applicator

Reexamination Certificate

active

06931285

ABSTRACT:
A medical electrical lead that includes a lead body having a lead body lumen and an electrode head assembly having an inner wall and an electrode head assembly lumen adjacent to the lead body lumen. The lead further includes a drive shaft that extends through the lead body lumen and the electrode head assembly lumen, and a sealing member, having an outer diameter corresponding to the inner wall of the electrode head assembly lumen. The sealing member includes an inner lumen that receives the drive shaft, an outer sealing member that is fixedly engaged with the inner wall of the electrode head assembly, and an inner sealing member engaged with the drive shaft to provide a low friction seal.

REFERENCES:
patent: 4106512 (1978-08-01), Bisping
patent: 4217913 (1980-08-01), Dutcher
patent: 4311153 (1982-01-01), Smits
patent: 5246014 (1993-09-01), Williams et al.
patent: 5259394 (1993-11-01), Bens
patent: 5456708 (1995-10-01), Doan et al.
patent: 5531780 (1996-07-01), Vachon
patent: 5584873 (1996-12-01), Shoberg et al.
patent: 5948015 (1999-09-01), Hess et al.
patent: 6010500 (2000-01-01), Sherman et al.

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