Patent ID: 9526522
Filing Date: 2016-12-27
CPC Classification: A61B,A61M,A61N

Claim Text:
1. An interventional medical system comprising: an implantable device including an electronic controller, a hermetically sealed housing containing the controller, and a stimulation electrode coupled to the controller and mounted in proximity to a distal end of the housing; a tether assembly including an elongate tether and a tether holder, the tether holder including a locking portion and a pin portion extending from the locking portion, the tether having a distal end, secured to an attachment structure of the housing of the device, a proximal end secured to the tether holder, and first and second lengths extending away from the secured proximal end, the pin portion of the tether holder being configured for folding the first and second lengths of the tether thereabout, and the locking portion of the tether holder comprising a pair of apertures and a corresponding pair of plug members fitted therein, the proximal end of the tether being secured to the tether holder by having a length thereof extending alongside each plug member within a corresponding aperture; and a tool facilitating deployment of the implantable medical device, the tool comprising: a handle assembly comprising a control member, a proximal port, and a receptacle configured to receive the pin portion of the tether holder of the tether assembly with the first and second lengths of the tether folded thereabout, the receptacle being located in proximity to the proximal port; an inner assembly comprising an elongate multi-lumen tube and a distal member coupled to the tube, the distal member being configured to engage an end of the medical device in proximity to the attachment structure, and the first and second lengths of the tether extending from the device, through the multi-lumen tube, and out from the proximal port of the handle; and an outer assembly comprising an elongate deployment tube extending around the multi-lumen tube of the inner assembly and being longitudinally moveable, by means of the control member of the handle assembly, relative to the inner assembly, between first and second positions, the deployment tube including an enlarged distal-most portion that defines a distal opening of the deployment tube, and the distal member of the inner assembly being located within the distal-most portion of the deployment tube; and wherein, when the deployment tube is in the first position, and when the device engages the distal member of the inner assembly, substantially an entirety of the device is contained within the distal-most portion; and when the deployment tube is in the second position, the device has passed out through the distal opening of the deployment tube.