Abstract:
An implantable sensor assembly (108) comprises a sensor housing (26) with sensor means for monitoring a selected internally detectable physiological parameter of a patient, the sensor housing being attached to a fixation member (110) that is deployable within the patient to position and orient the sensor means to enable it to perform its function. The fixation member may be configured to lie in a single plane when deployed or may be tubular in shape. The fixation member includes a linear attachment strut (116) that is non-circular in cross section whereas the housing is provided with external members that define an elongate channel, non-circular in cross section and receptive to the attachment strut. The attachment strut is inserted transversely into the channel and one of the external members is crimped over the strut to secure the housing and the fixation member together.
Abstract:
An implantable medical device (10), such as a sensor for monitoring a selected internally detectable physiological parameter of a patient, is attached to a fixation member (30) that is deployable within the patient to position and orient the sensor to enable it to perform its function. The fixation member is be configured to lie in a single plane when deployed and coprises one or more loops (42). The attachment of the housing and fixation member includes providing the fixation member with a linear attachment strut (44) that is non-circular in cross section and providing the housing with external members (46-48) that define an elongate channel, non-circular in cross section and receptive to the attachment strut. The attachment strut can be inserted transversely into the channel and the external member can be crimped over the strut to secure the housing and fixation member together.