摘要:
An ABI pad having a configuration and composition to provide the ABI pad with sufficient flexibility to permit the pad to be curved, molded or otherwise conformed to the cochlear nucleus, brainstem or other therapeutically-beneficial site, while ensuring the ABI pad maintains structural integrity over the anticipated operational life of the implant. The ABI pads are manufactured from silicone or other biocompatible material having a durometer sufficient to ensure the durability of the ABI pad over the anticipated operational life of the implant. To attain substantial flexibility, the thickness or cross section of the ABI pad is as minimal as possible to increase flexibility while not adversely affecting the noted durability of the pad. In one embodiment, the ABI pads are formed with an aperture in its interior region resulting in an ABI pad having minimal material mass while having sufficient structural integrity to reliably support the electrodes and associated wires. Thus, the ABI pads of the present invention may still be molded from, for example, industry standard 30 durometer silicone, and the wires and electrodes may be fabricated from industry standard platinum or a platinum/iridium alloy or other bio-compatible noble metals.
摘要:
A medical implant, such as an implantable component (22) of a tissue-stimulating prosthesis. One example of such a prosthesis being a cochlear implant. The component (22) is adapted to be implanted at or adjacent a tissue surface within the recipient, such as a bone surface. The component (22) has a housing and at least one flange (42) extending outwardly therefrom. The flange (42) can be secured to the tissue surface via a tissue fixation device, such as a bone screw (43).
摘要:
An apparatus and method for implanting and securing an implanted medical device in a recipient. The implantable medical device of the generally includes an electrode assembly that comprises an elongate carrier member having at least one stimulating electrode positioned thereon. The carrier member further has a fixation structure positioned thereon configured to interact with a portion of the rigid structure to longitudinally secure the carrier member in the recipient.
摘要:
An implantable drug-delivery sleeve for an elongate component of an implantable medical device. The sleeve includes a tubular substrate having a lumen configured to receive the elongate component so as to allow relative displacement of the substrate and the elongate component, wherein the substrate is shaped so as to be retained stationary at a desired position along the elongate component, and a drug releasably carried by the substrate.
摘要:
An implantable electrode array for insertion into an implantee's body. The array comprises an elongate carrier having a proximal end and a distal end. A plurality of electrodes are supported by the carrier at respective longitudinally spaced locations thereon between the proximal end and the distal end. The carrier is comprised of at least a first portion that preferentially adopts a first at least partially curved configuration and at least a second portion that preferentially adopts a second different configuration to that of the first portion. The second portion is closer to the distal end than the first portion and both the first and second portions each have at least one electrode supported thereon.
摘要:
A protective faceplate (37) for an implantable component of a tissue-stimulating prosthesis, such as a prosthetic hearing implant. The faceplate (37) comprising a first or outer surface and an opposed second or inner surface. The implantable component can be removably or non-removably mountable to the second surface and adapted to extend into a cavity formed in a bone of a recipient.
摘要:
An implantable device for mounting to a patient's bone includes a housing and at least one osseointegrating protuberance. The housing includes a surface having an abutting portion configured to abut the bone when the housing is implanted in the patient, the abutting portion defining a housing axis orthogonal to the surface. The at least one osseointegrating protuberance: extends from the surface of the housing; is adapted to abut the patient's bone; and has a substantially smooth shaft.
摘要:
A medical implant, such as a cochlear implant, comprising a fixating point which is located remotely from the medical implant. This arrangement can reduce the risk of post operative infection in a patient in which the medical implant is implanted.
摘要:
An implantable electrode array (30) that can adopt a first configuration selected to allow the array (30) to be inserted into a cochlea (12) of an implantee and at least a second configuration in which the array can apply tissue stimulation. The array (30) comprises an elongate carrier (31) having a proximal end (37), a distal end (34), and an inner surface (35) conformable with the inner wall of the implantee's cochlea (12). A plurality of electrodes (36) are supported within the carrier (31) at respective spaced locations thereon in a region between the proximal end (37) and the distal end (34) with at least one of the electrodes having a surface that is at least adjacent the inner surface (35) of the carrier (31). The carrier (31) is formed in the second configuration from a first layer (32) and at least a second layer (32) of resiliently flexible material. Manufacturing methods include molding the first and second layers into an array such as that described above.
摘要:
A housing for an implantable device for mounting to a patient's bone is disclosed. The housing comprises one or more surfaces, wherein at least one of the surfaces is substantially orthogonal to an implant axis and is configured to abut the patient's bone, and a first osseointegrating protuberance extending from one of the surfaces, wherein a longitudinal axis of the first protuberance is disposed at an acute first angle relative to the implant axis.