摘要:
The disclosure describes an implantable stimulation system that guides programming with a therapeutic tree. All possible stimulation parameters are arranged on the therapeutic tree, with each level of the therapeutic tree containing a different stimulation parameter type. Each level includes nodes that are connected to nodes of adjacent levels. A program path is created by moving through nodes of lower levels. The stimulation parameter types are arranged so that coarse adjustments occur at higher levels of the tree and fine adjustments occur at lower levels of the tree. The nodes of the program path define the stimulation parameters of the delivered stimulation therapy. Performance feedback may be used by the system to evaluate nodes of the therapeutic tree and define the program path. The performance feedback may include beneficial effects, adverse effects, and system performance related to the stimulation therapy. Additionally, one or more sensors may provide the performance feedback.
摘要:
An implantable medical elongated member includes a first outer surface portion and a second outer surface portion extending around at least ten percent of an outer perimeter of the elongated member. A fixation element extends a distance from the first outer surface portion of the implantable medical elongated member. A longitudinally-extending section of the second outer surface portion proximate to a distal end of the elongated member is substantially devoid of any fixation elements that extend the distance from second outer surface portion. In some embodiments, the longitudinally-extending section of the second outer surface portion is substantially devoid of any exposed electrodes.
摘要:
Techniques for configuring electrical stimulation therapy utilizing one or more stimulation intensity values are described. In one example, a method includes receiving a stimulation intensity value that corresponds to an equal intensity function; determining a pulse width value and a pulse amplitude value based on the equal intensity function; and controlling delivery of electrical stimulation pulses with the determined pulse width value and amplitude value to a patient. A stimulation intensity value may correspond to a plurality of paired pulse width and amplitude values having substantially the same intensity. For example, the plurality of paired pulse width and amplitude values may activate a substantially equal volume of tissue when a stimulation pulse with the paired values is delivered.
摘要:
Methods for monitoring an infection in proximity to an implantable medical device include monitoring a first indicator of infection in proximity to a medical device implanted in a patient; monitoring a second patient parameter; and determining whether the combination of the first indicator and the second parameter are indicative of infection in proximity to the implanted device. If a determination is made that the combination of the first indicator and the second parameter are indicative of infection, an alert may be issued.
摘要:
In general, the invention is directed to treatment of urinary incontinence by the implantation of one or more bulking prostheses proximate to a urethral sphincter. These bulking prostheses, which may include biocompatible hydrogel, are implanted into the tissue outside the urethra, proximate to a urethral sphincter. When implanted, the bulking prostheses are in a miniature state. Upon introduction into the body, the devices enter an enlarged state. In their enlarged state, the bulking prostheses supply extra bulk to the tissues proximate to the external urethral sphincter. With the extra bulk, the patient can exercise voluntary control over the external urethral sphincter to close or maintain closure of the urethra and maintain urinary continence.
摘要:
An implantable medical lead includes at least one stimulation electrode and at least one sensor configured to generate an electrical signal that varies as a function of a parameter associated with a voiding event of a patient. In some embodiments, the sensor may be at least one of a microphone that captures sounds associated with voiding events, a pressure sensor, a flow sensor, a strain gauge, a physiological parameter sensing electrode or a temperature sensor. The electrical signal generated by the sensor may used to detect an occurrence of a voiding event. Thus, the lead may be coupled wirelessly or via a wired connection to a device that processes the electrical signal from the sensor, generates voiding information based on the electrical signal, and in some cases, records the voiding information for later retrieval and analysis.
摘要:
A method for monitoring infection in proximity to an implanted medical device includes monitoring an indicator of infection in proximity to the device and determining whether a value associated the indicator of infection crosses a first threshold indicative of infection. The method further includes detecting an event associated with the device. The event is capable of affecting the indicator of infection. The method also includes determining whether the value associated with the indicator of infection crosses a second threshold indicative of infection if the event is detected. The method may further include issuing an alert if (i) the first threshold is crossed and the event is not detected, or (ii) the second threshold is crossed and the event is detected.
摘要:
Described are implantable devices and methods for treating various disorders of the pelvic floor by delivering one or more drugs to a patient's hypogastric nerve or branches or portions thereof, prostatic plexus nerve or branches or portions thereof, sacral splanchnic nerve or branches or portions thereof, pelvic splanchnic nerve or branches or portions thereof, prostate or branches or portions thereof, pelvic floor, colon or branches or portions thereof, bladder or portions thereof, vagina or portions thereof, anus or portions thereof, external anal sphincter or portions thereof, urethra or portions thereof, penile dorsal nerve or portions thereof, inferior rectal nerves or branches or portions thereof, perineal nerves or branches or portions thereof, scrotal nerves or branches or portions thereof, scrotum or portions thereof, Alcock's Canal or branches or portions thereof, sacro-tuberous ligament or branches or portions thereof, ischial tuberosity or branches or portions thereof, greater sciatic foramen or branches or portions thereof, or lesser sciatic foramen or branches or portions thereof. One, two or more drug delivery regimes are provided on a continuous, alternating, intermittent or other basis to one or more selected nerves, nerve portions or tissues in an amount and manner effective to treat a number of disorders, including, but not limited to, urinary and/or fecal voiding dysfunctions such as constipation, incontinence disorders such as urge frequency and urinary retention disorders, sexual dysfunctions such as orgasmic and erectile dysfunction, pelvic pain, prostatitis, prostatalgia and prostatodynia.
摘要:
An implanted elongated member, e.g., a medical lead or catheter, includes one or more conduits that are configured to accept a stylet to guide the elongated member during implantation and deliver a solidifying substance to an outer surface of the distal portion of the elongated member via one or more exit ports. Once the elongated member is correctly positioned within the patient, the stylet is removed from the conduit and the solidifying substance is delivered into the conduit. The solidifying substance is cured in situ from moisture in the surrounding tissue, UV light or some other curing method. The solidifying substance helps secure the elongated member to a target tissue site. The solidifying substance may form fixation structures that extend away from the elongated member, form an adhesive bond between the elongated member and the tissue, or inflate a balloon element that that engages with the adjacent tissue.
摘要:
The disclosure is directed to securing electrodes of a medical lead adjacent to a target tissue site. The medical lead may include at least one adhesive element disposed along a longitudinal outer surface of the lead body to adhere the adjacent tissue to the lead. Adhesive elements may be disposed proximal to, distal to, or in-between the electrodes of the lead. Each adhesive element may be inactive during lead implantation and activated by removing a covering sheath to expose the adhesive elements to moisture in the tissue or presenting an energy, e.g. ultraviolet light, to the adhesive elements. Once active, the adhesive elements secure the lead to surrounding tissue to prevent migration of the electrodes from the target tissue.