Interventional medical devices, device systems, and fixation components thereof

    公开(公告)号:US12251559B2

    公开(公告)日:2025-03-18

    申请号:US17306032

    申请日:2021-05-03

    Abstract: A fixation mechanism of an implantable medical device is formed by a plurality of tines fixedly mounted around a perimeter of a distal end of the device. Each tine may be said to include a first segment fixedly attached to the device, a second segment extending from the first segment, and a third segment, to which the second segment extends. When the device is loaded in a lumen of a delivery tool and a rounded free distal end of each tine engages a sidewall that defines the lumen, to hold the tines in a spring-loaded condition, the first segment of each tine, which has a spring-biased pre-formed curvature, becomes relatively straightened, and the third segment of each tine, which is terminated by the free distal end, extends away from the axis of the device at an acute angle in a range from about 45 degrees to about 75 degrees.

    SYSTEMS AND METHODS FOR TREATING MEDICAL CONDITIONS WITH DORSAL ROOT GANGLION STIMULATION

    公开(公告)号:US20230405325A1

    公开(公告)日:2023-12-21

    申请号:US18240288

    申请日:2023-08-30

    CPC classification number: A61N1/36135

    Abstract: A system comprises a device that includes a signal generator and at least one processor configured to monitor a value of a medical parameter of the patient that is associated with type 2 diabetes, a condition of metabolic syndrome, pancreatis, or any combination thereof. The at least one processor is configured to determine one or more stimulation parameters for stimulating at least one spinal nerve of the patient with an electrical signal, and control the signal generator to generate the electrical signal based on the one or more stimulation parameters. The electrical signal is introduced to the at least one spinal nerve by one or more electrodes, which causes a response by at least one anatomical element of the patient that changes the value of the medical parameter for the patient.

    Fixation components for implantable medical devices

    公开(公告)号:US11759632B2

    公开(公告)日:2023-09-19

    申请号:US16825143

    申请日:2020-03-20

    CPC classification number: A61N1/059 B21D39/02

    Abstract: An example fixation component for an implantable medical device (IMD) includes a base and a plurality of tines configured be deployed with a target deployment stiffness to engage tissue a target implant site while maintaining a target deflection stiffness after deployment. The base defines a longitudinal axis of the fixation component and is fixedly attached near the distal end of the IMD. Each tine is spaced apart from one another around a perimeter of the distal end of the IMD and extend from the base. A shape of each tine is selected to control each of the target deployment stiffness and target deflection stiffness.

    Securing an implantable medical device in position while reducing perforations

    公开(公告)号:US10898707B2

    公开(公告)日:2021-01-26

    申请号:US16184596

    申请日:2018-11-08

    Abstract: Methods and systems of making a medical electrical lead type having a set of tines. A system for implantation of a lead medical electrical lead in contact with heart tissue, comprises an elongated lead body; a set of curved tines mounted to and extending from a distal end of the lead body, the tines having a length (dD) and an effective cross sectional area, and a delivery catheter. The delivery catheter encloses the lead body and has a distal capsule portion enclosing the tines. The tines exerting a spring force against the capsule and provide a stored potential energy. The delivery catheter has an elastic, not stiff and low column strength ejection means for advancing the lead and tines distally from the capsule and fixating the tines within the heart tissue, the controllable and the stored potential energy of the tines together provide a deployment energy. The tines when so fixated in the tissue provide a fixation energy. The deployment energy and the fixation energy of the tines are equivalent.

    Interventional medical systems and associated assemblies and methods

    公开(公告)号:US10398892B2

    公开(公告)日:2019-09-03

    申请号:US15216466

    申请日:2016-07-21

    Abstract: A catheter assembly includes a cap and a spring-biased tethering member coupled thereto. The cap includes first and second portions, and a transition zone extending therebetween. A girth of the first portion is sized to fit within a distal-most opening of the catheter assembly; and a girth of the second portion tapers from a first size at the transition zone, which is too large to fit within the distal-most opening, to a smaller size at a distal end of the cap. The spring-biased tethering member holds the cap in open and closed positions, when the cap first portion extends within the distal-most opening, and when the cap is separated from the distal-most opening, respectively. At the closed position, the first portion is approximately concentric with the distal-most opening, and at the open position, an entirety of the cap is laterally offset from the distal-most opening.

    CONNECTOR CONDITIONING/BORE PLUG
    9.
    发明申请

    公开(公告)号:US20230013928A1

    公开(公告)日:2023-01-19

    申请号:US17378003

    申请日:2021-07-16

    Abstract: A bore plug for an implantable medical device. The bore plug includes an elongate body having a proximal portion, a distal portion, and defining a major longitudinal axis therethrough, the distal portion being sized and configured to be received within a bore of the implantable medical device. The distal portion includes a lubricating element configured to lubricate the bore when the distal portion is at least one from the group consisting of inserted within and withdrawn from the bore.

    INTERVENTIONAL MEDICAL SYSTEMS AND ASSOCIATED ASSEMBLIES

    公开(公告)号:US20220313310A1

    公开(公告)日:2022-10-06

    申请号:US17808026

    申请日:2022-06-21

    Abstract: A tethering assembly for securing a medical device includes a shaft and a wire that extends in sliding engagement within a proximal lumen, a channel, and a distal receptacle of the shaft. A retainer zone of the shaft, through which the channel extends, stops a transition segment of the wire, which extends between a proximal and a distal segment of the wire, from moving into the shaft receptacle, thereby restraining a distal-most tip of the wire from moving through a distal-most opening of the receptacle. When a projecting member of the device has entered a secure zone of the receptacle, via movement through the distal-most opening and a tapering passageway thereof, the distal-most tip of the wire, which may be spring-biased, can move distally into the passageway so that the tip blocks the projecting member from moving distally, back through the passageway.

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