摘要:
A lead includes a lead body extending from a lead proximal end portion to a lead distal end portion and having an intermediate portion therebetween, one or more tissue sensing/stimulation electrodes disposed along the lead body, one or more terminal connections disposed along the lead proximal end portion. The lead further includes one or more conductors contained within the lead body extending between the tissue sensing/stimulation electrodes and the terminal connections, and a fibrous matrix coating is disposed onto at least a portion of the lead body and/or sensing/stimulation electrodes.
摘要:
A medical electrical lead includes a drug eluting coating provided over at least a portion of the lead body. The drug eluting coating can be provided over at least a portion of the lead body and adjacent to at least one electrode located on the lead body. The drug eluting coating can include at least one matrix polymer layer including a polymer admixed with a therapeutic agent. The therapeutic agent, for example, can be an anti-proliferative agent or an anti-inflammatory agent. The matrix polymer can include a medical adhesive. The rate of elution of the drug from the matrix polymer layer is affected by the drug to polymer ratio of the drug in the matrix polymer layer.
摘要:
A medical electrical lead includes a drug eluting coating provided over at least a portion of the lead body. The drug eluting coating can be provided over at least a portion of the lead body and adjacent to at least one electrode located on the lead body. The drug eluting coating can include at least one matrix polymer layer including a polymer admixed with a therapeutic agent. The therapeutic agent, for example, can be an anti-proliferative agent or an anti-inflammatory agent. The matrix polymer can include a medical adhesive. The rate of elution of the drug from the matrix polymer layer is affected by the drug to polymer ratio of the drug in the matrix polymer layer.
摘要:
Disclosed herein, among other things, are high surface area electrodes and methods of making the same. In an embodiment, the invention includes a method of increasing the surface area of an electrode of an implantable medical device including immersing the electrode in an electrolyte solution and oxidatively removing material from the surface of the electrode. In an embodiment, the invention includes a method of increasing the surface area of an electrode of an implantable medical device including immersing the electrode in an electrolyte solution and applying an oscillating electrical potential. In an embodiment, the invention includes a method of manufacturing an implantable stimulation lead including welding an electrode to a conductor and increasing the surface area of the electrode by oxidatively removing a portion of the electrode surface. Other aspects and embodiments are provided herein.
摘要:
A cardiac lead comprising a lead body extending from a proximal end portion to a distal end portion; a cardiac electrode disposed along the lead body; and a coating associated with at least a portion of the electrode, wherein the coating comprises a conductive polymer.
摘要:
A cardiac lead comprising a lead body extending from a proximal end portion to a distal end portion; a cardiac electrode disposed along the lead body; and a coating associated with at least a portion of the electrode, the coating comprises a conductive polymer.
摘要:
One embodiment of the present invention relates to an implantable medical device (“IMD”) that can be programmed from one operational mode to another operational mode when in the presence of electro-magnetic interference (“EMI”). In accordance with this particular embodiment, the IMD includes a communication interface for receiving communication signals from an external device, such as a command to switch the IMD from a first operation mode to a second operation mode. The IMD further includes a processor in electrical communication with the communication interface, which is operable to switch or reprogram the IMD from the first operation mode to the second operation mode upon receiving a command to do so. In addition, the IMD includes a timer operable to measure a time period from when the processor switches the IMD to the second operation mode. In accordance with this aspect of the invention, the processor is in electrical communication with the timer, and is further operable to switch the IMD from the second operation mode back to the first operation mode when the measured time period reaches a predetermined time period.
摘要:
Embodiments of the invention are related to optical window assemblies for implantable medical devices, amongst other things. In an embodiment, the invention includes an optical window assembly for a medical device. The assembly can include a ferrule defining an aperture and a spacer ring disposed within the aperture. The assembly can also include an optical window coupled to the metal ferrule and the spacer ring. In an embodiment, the invention includes an implantable medical device including a housing and an optical window assembly coupled to the housing. In an embodiment, the invention can include a method of manufacturing a medical device. The method can include brazing a spacer ring to a metal ferrule, coupling an optical window to the spacer ring and the metal ferrule with a bonding glass material, depositing a chemical sensing element over the optical window, and coupling a porous cover layer to the spacer ring and the ferrule with an adhesive. Other embodiments are also included herein.
摘要:
One embodiment of the present invention relates to an implantable medical device (“IMD”) that can be programmed from one operational mode to another operational mode when in the presence of electro-magnetic interference (“EMI”). In accordance with this particular embodiment, the IMD includes a communication interface for receiving communication signals from an external device, such as a command to switch the IMD from a first operation mode to a second operation mode. The IMD further includes a processor in electrical communication with the communication interface, which is operable to switch or reprogram the IMD from the first operation mode to the second operation mode upon receiving a command to do so. In addition, the IMD includes a timer operable to measure a time period from when the processor switches the IMD to the second operation mode. In accordance with this aspect of the invention, the processor is in electrical communication with the timer, and is further operable to switch the IMD from the second operation mode back to the first operation mode when the measured time period reaches a predetermined time period.
摘要:
The present invention pertains to polyisobutylene urethane, urea and urethane/urea copolymers, to methods of making such copolymers and to medical devices that contain such polymers. According to certain aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment, an additional polymeric segment that is not a polyisobutylene segment, and a segment comprising a residue of a diisocyanate. According to other aspects of the invention, polyisobutylene urethane, urea and urethane/urea copolymers are provided, which comprise a polyisobutylene segment and end groups that comprise alkyl-, alkenyl- or alkynyl-chain-containing end groups.