Implantable medical device with a current generated for...

Details Implantable medical device with a current generated for... Implantable medical device with a current generated for...

2007-04-10

2007-04-10

Pezzuto, Robert E. (Department: 3766)

Surgery: light, thermal, and electrical application

Light, thermal, and electrical application

Electrical therapeutic systems

C607S002000, C607S003000, C607S036000, C607S050000, C607S075000, C607S116000, C607S120000, C607S004000, C607S005000, C607S009000, C128S898000, C053S425000

Reexamination Certificate

active

10468867

ABSTRACT:
In a cardiac stimulating device, an infection control current is generated and applied to a subject in whom a medical device is implanted by completing a circuit including an entirely electrically conductive exterior of a housing of the device, an electrode carried by an electrode lead of the device, and an electrically conductive surface of a proximal portion of the electrode lead, extending from the housing to a location, after implantation, situated beyond entry of the electrode lead into the venous system and before entry of the electrode lead into the superior vena cava. The infection control current can be a current with a square waveform, and the circuit can be completed at selected times, such as only during the refractory period of the subject's heart.

REFERENCES:
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patent: 6258249 (2001-07-01), Simpson
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patent: 6295474 (2001-09-01), Munshi
“Prevention and Control of Bacterial Infections Associated with Medical Devices,” Khoury et al., ASAIO Journal, 1992, pp. M174-M178.

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