Implantable electronic device employing coated lead retaining setscrews
First Claim
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1. An implantable electronic device for use with an implantable medical lead, the implantable medical lead including a proximal lead end, the implantable electronic device comprising:
- a housing;
a header connector assembly coupled to the housing and defining a threaded setscrew bore, the header connector assembly comprising a connector assembly adjacent the threaded setscrew bore, the connector assembly adapted to receive the proximal lead end of the implantable medical lead; and
a setscrew threadedly movable within the threaded setscrew bore to retain the proximal lead end within the connector assembly, the setscrew comprising;
an anodized threaded body and a vapor-deposited coating disposed on a threaded portion of the anodized threaded body, the anodized threaded body defining a socket that is not coated by the vapor-deposited coating and that extends into the anodized threaded body, the socket shaped to receive a tool adapted to rotate the setscrew within the threaded setscrew bore.
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Abstract
Disclosed herein is an implantable electronic device for use with implantable medical leads. The implantable medical leads are retained within the implantable electronic device with coated setscrews and, in particular, setscrews having a vapor-deposited coating, such as parylene. The coated setscrews have improved thread locking capabilities that resist unscrewing once tightened and, as a result, improve retention of implantable leads within the implantable electronic device.
55 Citations
16 Claims
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1. An implantable electronic device for use with an implantable medical lead, the implantable medical lead including a proximal lead end, the implantable electronic device comprising:
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a housing; a header connector assembly coupled to the housing and defining a threaded setscrew bore, the header connector assembly comprising a connector assembly adjacent the threaded setscrew bore, the connector assembly adapted to receive the proximal lead end of the implantable medical lead; and a setscrew threadedly movable within the threaded setscrew bore to retain the proximal lead end within the connector assembly, the setscrew comprising; an anodized threaded body and a vapor-deposited coating disposed on a threaded portion of the anodized threaded body, the anodized threaded body defining a socket that is not coated by the vapor-deposited coating and that extends into the anodized threaded body, the socket shaped to receive a tool adapted to rotate the setscrew within the threaded setscrew bore. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of manufacturing an implantable electronic device including a header that further includes a connector assembly and a threaded setscrew bore adjacent the connector assembly, the method comprising:
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producing a coated setscrew by applying a vapor-deposited coating to threads of an anodized setscrew substrate, the anodized setscrew substrate including a socket that is not coated by the vapor-deposited coating and that extends into the anodized setscrew substrate, the socket shaped to receive a tool adapted to rotate the setscrew within the threaded setscrew bore; and at least one of providing the coated setscrew with the implantable electronic device or threadedly engaging the coated setscrew within the threaded setscrew bore. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification