Abstract:
Structures and methods relating to electrodes for incorporation into a feedthrough with a profile adapted for subcutaneous sensing of physiologic and cardiac signals. Electrode assemblies are adapted for integration with feedthroughs and provide reliable insulation from the implantable medical device housing. Various structures and manufacturing processes are implemented to provide a large sensing surface with a low profile. The subcutaneous sensing electrode assembly can provide a leadless sensing system and further enhances installation and follow-up procedures.
Abstract:
Methods for forming an insulative body of an implantable medical device connector module assembly employ an injection molding process, whereby first and second shots of insulative material form core and an overlay portions, respectively. In some methods, a panel portion of an electrical component is mounted between opposing surfaces of a mold such that a finger-like portion of the component extends into a cavity of the mold, with a first side thereof touching another surface of the mold and a second, opposite side exposed within the cavity; following first shot injection, the core portion captures the finger-like portion in relatively rigid relation thereto. When two types of connector bores are formed, a color indicator may be engaged with a feature of the core portion that is located in proximity to a connector bore of the first type, and then the overlay portion is formed over the indicator.
Abstract:
A contact component of an implantable medical device connector module assembly includes a threaded bore in fluid communication with a connector bore thereof, and a flanged bore in fluid communication with the threaded bore. A perimeter surface of the flanged bore creates a shutoff with a pin during injection molding to form an insulative body of the assembly, and a perimeter surface of an insulative bore formed around the pin is preferably flush with that of the flanged bore of the contact component. A centerline axis of the flanged bore is preferably aligned with that of the threaded bore, for example, so that the molded insulative bore has a centerline axis aligned with that of the threaded bore of the contact component.
Abstract:
A contact component of an implantable medical device connector module assembly includes a threaded bore in fluid communication with a connector bore thereof, and a flanged bore in fluid communication with the threaded bore. A perimeter surface of the flanged bore creates a shutoff with a pin during injection molding to form an insulative body of the assembly, and a perimeter surface of an insulative bore formed around the pin is preferably flush with that of the flanged bore of the contact component. A centerline axis of the flanged bore is preferably aligned with that of the threaded bore, for example, so that the molded insulative bore has a centerline axis aligned with that of the threaded bore of the contact component.
Abstract:
An implantable medical device (IMD) having a hermetic housing formed from a case and a cover each having an exterior surface and an interior surface. An IMD component is mounted to the interior surface of the cover and has an electrical contact. A hybrid circuit is assembled in the case. The IMD component electrical contact is electrically coupled to the to the hybrid circuit assembled in the case.
Abstract:
An implantable medical device (IMD) may include at least two separate lead connection assemblies, each with electrical connectors for connecting implantable leads to the IMD. In some examples, a IMD may include a first therapy module configured to generate a first electrical stimulation therapy and a second therapy module configured to generate a second electrical stimulation therapy for delivery to the patient. The IMD may include a first lead connection assembly including a first electrical connector electrically coupled to the first therapy module and a second lead connection assembly including a second electrical connector electrically coupled to the second therapy module. In some examples, the first and second lead connection assemblies are distributed around the outer perimeter of the IMD housing.
Abstract:
At least one storage component, for example a capacitor or a battery, of an implantable medical device includes two perimeter surfaces. Linear extensions of the two perimeter surfaces define a zone. An electrical connector, which is coupled to the storage component and includes at least one connection point for electrically connecting the storage component with at least one other component within the medical device, is contained within the zone defined by the linear extensions of the two perimeter surfaces.
Abstract:
Methods and apparatuses are provided for an electrical device that employs a feedthrough including a hermetic seal that seals an interior region of the electrical device. The electrical device includes an electrical contact disposed within the interior region of the electrical device, and a wire terminal that includes an encircled portion that is encircled by the feedthrough, and a first end that electrically connects with said electrical contact. When the electrical device is constructed, the first end of the wire terminal is coated with a conductive metal that is more resistant to oxidation than the wire terminal. The first end of the wire terminal is secured to the electrical contact using a mechanical device such as a crimping connector or a spring connector.
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. An example setscrew has a metal core with an insulative coating disposed over the core to electrically isolate it from body fluids and surrounding tissue. In another example, the setscrew incorporates a sealing capability by including a sealing member that is coupled to the setscrew.
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.