Sealing setscrew
First Claim
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1. An implantable medical device (IMD), comprising:
- a header;
a connector block disposed within the header, the connector block comprising;
a lead bore;
a setscrew bore in communication with the lead bore, the setscrew bore being offset from the lead bore; and
a setscrew threadedly-coupled to the setscrew bore and configured for engaging a lead receivable within the lead bore, wherein the setscrew comprises;
a core having a head member and a threaded shank member, wherein the head member includes an engagement segment configured for application of torque;
a shoulder region disposed between the head member and the threaded shank member; and
an insulating coating coupled to the head member for electrically isolating the head member, wherein the insulating coating is configured to be placed substantially in compression against the core when torque is applied to the head member, wherein the lead is engaged by the shoulder region.
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Abstract
This application discusses, among other things, an implantable medical device including a setscrew that enables lead tip visibility as an indicator of full lead insertion without requiring a grommet. In an example, the implantable medical device header is provided with a lead bore and a setscrew bore with the setscrew bore having a longitudinal axis that extends in a transverse direction to, and in communication with, the lead bore. In one example, the setscrew bore intersects with the lead bore at a location that is offset from the central longitudinal axis of the lead bore.
60 Citations
13 Claims
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1. An implantable medical device (IMD), comprising:
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a header; a connector block disposed within the header, the connector block comprising; a lead bore; a setscrew bore in communication with the lead bore, the setscrew bore being offset from the lead bore; and a setscrew threadedly-coupled to the setscrew bore and configured for engaging a lead receivable within the lead bore, wherein the setscrew comprises; a core having a head member and a threaded shank member, wherein the head member includes an engagement segment configured for application of torque; a shoulder region disposed between the head member and the threaded shank member; and an insulating coating coupled to the head member for electrically isolating the head member, wherein the insulating coating is configured to be placed substantially in compression against the core when torque is applied to the head member, wherein the lead is engaged by the shoulder region. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An implantable medical device (IMD) header assembly, comprising:
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a header; a setscrew including a shoulder; means for receiving a lead, the lead receiving means disposed within the header; means for receiving the setscrew, wherein the setscrew receiving means is transversely oriented and is in communication with the lead receiving means and the setscrew receiving means is offset from the terminal-pin receiving means, wherein the shoulder is configured to engage the lead within the header; and means for sealing the setscrew receiving means, the sealing means adapted to prevent ingress of fluids. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification