Medtronic, Inc.

Kathryn Pederson

Mukul Jain

Nicholas S Mairs

John Shishilla

Shahn S Sage

Bruce A Behymer

Karl E Hokanson

A trial stimulation system includes a trial electrical stimulator. Additionally, systems for securing a disposable trial stimulator to the body of a patient are described, which may function to improve the durability of the system during the trial period and reduce the risk of damage or malfunction to the system due to lead/electrode dislocation and/or off-label uses like showering or bathing with the trial stimulator still secured to the body.

Trial stimulation systems

A trial stimulation system includes a disposable trial electrical stimulator that, in some examples, is sterilized for a single use in a stimulation trial of one patient. Additionally, systems for securing a disposable trial stimulator to the body of a patient are described, which may function to improve the durability of the system during the trial period and reduce the risk of damage or malfunction to the system due to lead/electrode dislocation and/or off-label uses like showering or bathing with the trial stimulator still secured to the body.

An anchor for maintaining a portion of a therapy delivery element within a desired location of a patient has (i) a first opening, (ii) a second opening, (iii) a body member formed of elastic material disposed between the first and second opening, (iv) and a lumen extending though the body member from the first opening to the second opening, and (v) a retention element secured to or integrally formed with the body member for retaining the anchor within a tissue location of a patient. The therapy delivery element has an outer diameter and an outer surface about which the anchor is disposable. The body member has a first inner diameter defined by the lumen in a relaxed state and a second inner diameter defined by the lumen in a radially stretched state. The first inner diameter is smaller than the outer diameter of the therapy delivery element, which is smaller that the second inner diameter. The lumen is configured to be disposed about at least a portion of the therapy delivery element. Radially compressive forces, due to the elastic material of the body member, contribute to retaining the anchor relative to the therapy delivery element.

Anchor and anchor deployment apparatus

An anchor deployment apparatus for deploying an anchor about a therapy delivery element, such as a lead or a catheter, includes an anchor receiving element having an elongate member defining a lumen. The lumen is configured to slidably receive at least a portion of the therapy delivery element. The anchor is disposable about the elongate member. The deployment apparatus further includes an anchor engagement apparatus having an anchor engagement feature and a channel in which the elongate member of the anchor receiving element is moveable. The engagement feature is configured to engage the anchor when the anchor is disposed about the elongate member, and to cause the anchor to move distally along the elongate member when the feature is engaged with the anchor and the elongate member is moved proximally relative to the engagement element.

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East Bethel, MN, United States of America

Kathryn Pederson