Abstract:
Techniques for forming a header for an implantable medical device via a two-shot molding process are described. The two-shot molding processes may include a first molding step that creates a first-shot assembly and a second molding step that creates a second-shot assembly. The first-shot assembly may be formed to include one or more protrusions configured to interact with a second-shot mold and/or molding material in the second molding step. The second molding step may be configured to overmold the first-shot assembly. The header may include an attachment plate at least partially embedded in molding material and configured to be mechanically coupled to a body of the implantable medical device.
Abstract:
The disclosure describes examples of antennas used for communication with an implantable medical device (IMD). As one example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing, and a planar antenna, having a curved structure, that is stacked on an external side of the housing and coupled to the communication circuitry. As another example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing and an antenna having a curved structure formed on an external side of the housing and coupled to the communication circuitry. A resonant frequency of the antenna is based on a dielectric constant of tissue surrounding the antenna when the IMD is implanted, and a current distribution of the antenna is in-phase in opposite sides of the antenna.
Abstract:
In some examples, this disclosure describes a method for identifying a position within a patient for a first implantable medical device (IMD) to be implanted to facilitate tissue conductive communication (TCC) between the first IMD and a second IMD implanted within the patient. In some examples, the method includes storing model data that associates patient parameter data and second IMD position data with first IMD positions based on TCC communication performance, receiving patient parameter data indicating one or more anatomical or physiological parameters of the patient, receiving second IMD position data, performing analysis by at least one of comparing the model data to the patient parameter data and the second IMD position data, performing real-time computer simulations, or a combination of comparing and performing simulations, and outputting to a user an indication of the position for the first IMD to be implanted within the patient based on the analysis.
Abstract:
An implantable medical device (IMD) antenna and methods of fabricating the same are provided. An IMD can include a ceramic structure having at least one wall defining a hollow cavity. The ceramic structure can include a first end and a second end distal from the first end, the first end being open to provide access to the hollow cavity and the second end being closed. The IMD also includes an antenna cofire-integrated into the at least one wall of the ceramic structure and a housing adjoined to the ceramic structure.
Abstract:
An implantable medical device (IMD) and methods of fabricating the same are provided. An IMD can include a housing and a cofire ceramic module (CCM) coupled to the housing. The CCM can include an antenna cofire-integrated in the CCM. The antenna can include a plate composed of conductive material, and conductive antenna elements that are annular substrates having perimeters substantially coextensive with the perimeter of the plate. The antenna can also include interconnections. A first set of interconnections can be coupled between the plate and one of the conductive antenna elements, and a second set of interconnections can be coupled between the conductive antenna elements. The antenna can also include a feed line conductively coupled to the plate. In some embodiments, the feed line can be substantially serpentine-shaped to adjust impedance in the CCM.
Abstract:
A surgical system includes a surgical generator and at least one energy delivery device. The surgical generator includes at least one energy output stage configured to deliver energy, a controller configured to control the energy output, and sensor circuitry. The energy delivery device(s) is coupled to the surgical generator, configured for insertion into a synovial joint, and configured to supply energy through synovial fluid in the synovial joint. In a sensing mode, the sensor circuitry is configured to sense at least one electrical parameter of the energy and the controller is configured to determine a parameter of the synovial fluid based thereon. The controller is further configured, in a treatment mode, to control the energy based upon the at least one determined parameter of the synovial fluid to treat tissue of the synovial joint.
Abstract:
The disclosure describes examples of antennas used for communication with an implantable medical device (IMD). As one example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing, and a planar antenna, having a curved structure, that is stacked on an external side of the housing and coupled to the communication circuitry. As another example, the IMD includes a housing configured to house communication circuitry within an internal side of the housing and an antenna having a curved structure formed on an external side of the housing and coupled to the communication circuitry. A resonant frequency of the antenna is based on a dielectric constant of tissue surrounding the antenna when the IMD is implanted, and a current distribution of the antenna is in-phase in opposite sides of the antenna.
Abstract:
An implantable medical device (IMD) and methods of fabricating the same are provided. An IMD can include a housing and a cofire ceramic module (CCM) coupled to the housing. The CCM can include an antenna cofire-integrated in the CCM. The antenna can include a plate composed of conductive material, and conductive antenna elements that are annular substrates having perimeters substantially coextensive with the perimeter of the plate. The antenna can also include interconnections. A first set of interconnections can be coupled between the plate and one of the conductive antenna elements, and a second set of interconnections can be coupled between the conductive antenna elements. The antenna can also include a feed line conductively coupled to the plate. In some embodiments, the feed line can be substantially serpentine-shaped to adjust impedance in the CCM.