MEASURING LOAD IMPEDANCE WITH ACTIVE STIMULATION PULSES IN AN IMPLANTED PULSE GENERATOR

    公开(公告)号:US20190255332A1

    公开(公告)日:2019-08-22

    申请号:US16404142

    申请日:2019-05-06

    IPC分类号: A61N1/36 A61N1/39

    摘要: The present disclosure provides a medical stimulation system that includes a plurality of implantable channels each operable to obtain a voltage signal from a designated area of a body tissue. The medical stimulation system includes an impedance measurement device. The impedance measurement device includes a plurality of attenuators each coupled to a respective one of the channels. The attenuators are each operable to attenuate an amplitude of the voltage signal received from its respectively-coupled channel. The impedance measurement device includes a multiplexing component that receives the amplitude-attenuated voltage signals from each of the attenuators. The multiplexing component selectively outputs two of the amplitude-attenuated voltage signals. The impedance measurement device includes a differential amplifier that receives the two amplitude-attenuated voltage signals outputted from the multiplexing component as a differential input signal. The differential amplifier generates an amplifier output signal that includes at least partially an amplified version of the differential input signal.

    Stimulation needle apparatus and method

    公开(公告)号:US10244956B2

    公开(公告)日:2019-04-02

    申请号:US15430061

    申请日:2017-02-10

    发明人: Lawrence Kane

    摘要: In various examples, a stimulation needle apparatus is used for selectively administering a trial stimulation to body tissue of a patient. The stimulation needle apparatus includes a cannula assembly including a cannula and a cannula hub disposed at a proximal cannula end. A stylet assembly includes a stylet sized and shaped to fit within a cannula lumen. A stylet hub is disposed at the proximal stylet end and is configured to engage with the cannula hub. With the stylet hub engaged with the cannula hub, the distal stylet end extends distally from the distal cannula end. A stylet connection is electrically coupled with the stylet and is configured to electrically couple with a stimulator device, such that, a stimulation pulse delivered by the stimulator device is conducted from the stylet connection through the stylet to the distal stylet end to administer the trial stimulation.

    Methods, systems and devices for determining optimal placement for pudendal nerve stimulation lead using patient feedback

    公开(公告)号:US10238877B2

    公开(公告)日:2019-03-26

    申请号:US15356772

    申请日:2016-11-21

    IPC分类号: A61N1/05 A61N1/36 A61N1/372

    摘要: An anal electrode device is configured to measure a response of a patient to a stimulation pulse. The anal electrode device includes an elongated shaft that is configured to be at least partially inserted into an anal canal of the patient. A first sensory electrode is disposed on a first region of the shaft. The first sensory electrode is configured to measure a compound motor action potential (CMAP) from an internal sphincter of the patient while the shaft is partially inserted into the anal canal of the patient. A second sensory electrode is disposed on a second region of the shaft. The second sensory electrode is configured to measure the CMAP from an external sphincter of the patient while the shaft is partially inserted into the anal canal of the patient.

    Pudendal and sacral nerve stimulation sweep algorithm and method

    公开(公告)号:US09895532B2

    公开(公告)日:2018-02-20

    申请号:US15229003

    申请日:2016-08-04

    IPC分类号: A61N1/36 A61N1/05 A61N1/372

    摘要: A medical system includes an implantable lead having a plurality of electrode contacts, a pulse generator coupled to the lead and configured to generate electrical pulses to be delivered to a patient through the plurality of electrode contacts, and an electronic programmer coupled to the pulse generator. The electronic programmer programs the pulse generator to generate the electrical pulses. The pulse generator is programmed to generate an electrical stimulation to be applied to the patient via one of the electrode contacts on the implantable lead. A determination is received as to whether the patient, in response to the electrical stimulation, exhibited a bellows response or a toes response. A stimulation parameter of the electrical stimulation is ramped up in response to a determination that the patient did not exhibit the bellows response or the toes response and that the patient did not feel pain in response to the electrical stimulation.