103 results about "Sacral nerve" patented technology

Methods and apparatus for implanting a stimulation lead in a patient's sacrum to deliver neurostimulation therapy that can reduce patient surgical complications, reduce patient recovery time, and reduce healthcare costs. A surgical instrumentation kit for minimally invasive implantation of a sacral stimulation lead through a foramen of the sacrum in a patient to electrically stimulate a sacral nerve comprises a needle and a dilator and optionally includes a guide wire. The needle is adapted to be inserted posterior to the sacrum through an entry point and guided into a foramen along an insertion path to a desired location. In one variation, a guide wire is inserted through a needle lumen, and the needle is withdrawn. The insertion path is dilated with a dilator inserted over the needle or over the guide wire to a diameter sufficient for inserting a stimulation lead, and the needle or guide wire is removed from the insertion path. The dilator optionally includes a dilator body and a dilator sheath fitted over the dilator body. The stimulation lead is inserted to the desired location through the dilator body lumen or the dilator sheath lumen after removal of the dilator body, and the dilator sheath or body is removed from the insertion path. If the clinician desires to separately anchor the stimulation lead, an incision is created through the entry point from an epidermis to a fascia layer, and the stimulation lead is anchored to the fascia layer. The stimulation lead can be connected to the neurostimulator to delivery therapies to treat pelvic floor disorders such as urinary control disorders, fecal control disorders, sexual dysfunction, and pelvic pain.

An implantable medical lead for stimulation of the sacral nerves comprises a lead body which includes a distal end and a proximal end, and the distal end having at least one electrode contact having a length of between 0.10 and 1.50 inches extending longitudinally from the distal end toward the proximal end. The lead body at its proximal end may be coupled to a pulse generator, additional intermediate wiring, or other stimulation device. The implantable medical lead can comprise a first and second electrode contacts. The second electrode contact has a length of between 0.030 and 1.00 extending longitudinally from a point approximately 1.00 from the distal end toward the proximal end. The first and second electrode contacts do no overlap longitudinally. The implantable lead is implanted by taking the lead and implanting near the sacral nerves and then connecting to a pulse generator.

Described are implantable devices and methods for treating various disorders of the pelvic floor by means of electrical stimulation of the pudendal and sacral nerves, or portions thereof, and optional means for delivering drugs in association therewith. Two or more electrical stimulation regimes are applied on a continuous, alternating, intermittent or other basis to the sacral and pudendal nerves, and optionally one or more drugs are infused, injected or otherwise administered, to appropriate portions of a patient's pelvic floor and pudendal nerve and/or sacral nerve, or portions thereof, 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.

A method and system for providing pulsed electrical stimulation to sacral nerves and/or its branches, to provide therapy for urinary/fecal incontinence and other urological disorders. The stimulation system comprising implanted and external components. The pulsed electrical stimulation may be provided using a system which is one from a group comprising: a) an implanted stimulus-receiver with an external stimulator; b) an implanted stimulus-receiver comprising a high value capacitor for storing charge, used in conjunction with an external stimulator; c) a programmer-less implantable pulse generator (IPG) which is operable with an external magnet; d) a programmable implantable pulse generator; e) a combination implantable device comprising both a stimulus-receiver and a programmable IPG; and f) an implantable pulse generator (IPG) comprising a rechargeable battery. In one embodiment, the external components such as the programmer or external stimulator may comprise telemetry means for interrogation or programming of the implanted device from a remote location, over a wide area network.

An implantable electrical lead for applying stimulation energy to bodily tissue, such as a patient's nervous system, from an external power source. The lead is defined by a distal section, an intermediate section and a proximal section, and includes a lead body, a plurality of insulated wires, and a plurality of connector elements. The lead body includes a plurality of electrodes and an anchoring device. The insulated wires are electrically coupled to the electrodes, respectively. A wire intermediate segment extends proximal the lead body and is characterized as having a non-coiled configuration, terminating at a respective connector element for coupling to an external power source. The wire intermediate segments are extendible through a patient's skin and are sealable relative to the skin. The lead is adapted for providing temporary electrical stimulation to a sacral nerve in a bipolar mode, with the anchoring device inhibiting electrode migration.

Described are implantable devices and methods for treating various disorders of the pelvic floor by means of electrical stimulation of the pudendal and sacral nerves, or portions thereof, and optional means for delivering drugs in association therewith. Two or more electrical stimulation regimes are applied on a continuous, alternating, intermittent or other basis to the sacral and pudendal nerves, and optionally one or more drugs are infused, injected or otherwise administered, to appropriate portions of a patient's pelvic floor and pudendal nerve and/or sacral nerve, or portions thereof, 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.

A method and system for neuromodulation therapy for urinary incontinence and urological disorders comprises an implantable lead stimulus-receiver, and an external stimulator-transmitter having a power source, controlling circuitry, and predetermined programs. The stimulator-transmitter further includes a primary coil which inductively transfers electrical signals to the lead-receiver, which is also in electric contact with the sacral nerves. The external stimulator-transmitter emits electrical pulses to stimulate the sacral plexus according to a predetermined program. In one mode of operation, the operator may program one of the predetermined programs, in another mode, the electrical parameters may be “custom” programmed for the patient, and stored in the memory.

A method and system for providing electrical pulses for neuromodulating sacral nerves of a patient utilizing an implantable stimulator. The implantable stimulator comprising a pulse generator module and a stimulus receiver module for coupling with an external stimulator. Control circuitry ensures selective operation of one pulse generator module. The external stimulator comprises a telemetry module for remotely activating (or de-activating) programs over the internet, to arrive at the optimal program for each patient. Once the optimal “dose” is titrated using the external stimulator, the implanted pulse generator can then be programmed to such parameters. The external stimulator in conjunction with the implanted stimulus receiver can override the implanted pulse generator, to provide extra dose of therapy or to conserve the implanted battery. The external stimulator is also networked to other computers. The external programmer may also comprise a global positioning system (GPS) module for determining patient location.

An implantable medical electrical lead particularly for stimulation of the sacral nerves comprises a lead body extending between a distal end and a proximal end, and the distal end having at least one electrode of an electrode array extending longitudinally from the distal end toward the proximal end. The lead body at its proximal end may be coupled to a pulse generator, additional intermediate wiring, or other stimulation device. A fixation mechanism is formed on or integrally with the lead body proximal to the electrode array that is adapted to be implanted in and engage subcutaneous tissue, particularly muscle tissue, to inhibit axial movement of the lead body and dislodgement of the stimulation electrodes. The fixation mechanism comprises a M tine elements arrayed in a tine element array along a segment of the lead proximal to the stimulation electrode array. Each tine element comprises at least N flexible, pliant, tines, each tine having a tine width and thickness and extending through a tine length from an attached tine end to a free tine end. The attached tine end is attached to the lead body from a tine attachment site and supports the tine extending outwardly of the lead body and proximally toward the lead proximal end. The M×N tines are adapted to be folded inward against the lead body when fitted into and constrained by the lumen of an introducer such that the tine free ends of more distal tines of more distal tine elements are urged toward or alongside the attached tine ends of the adjacent more proximal tines of more proximal tine elements, and the folded tines do not overlap one another.

It is an object of the present invention to provide a method and apparatus for enhanced bladder voidance which would have the advantages of a rhizotomy yet be temporary and reversible by combining low and high-frequency sacral nerve stimulation. Applicants propose a new sacral neurostimulation strategy based on a combination of nerve conduction blockade using high frequency signals and nerve stimulation using low-frequency signals. The method and apparatus enhances micturition in paraplegics by sacral neurostimulation involving a combination of a low-frequency electrical stimulation applied to one or more sacral nerves to induce bladder contraction and a high frequency electrical stimulation applied to at least one sacral nerve to cause nerve conduction blockade that prevents urethral sphincter dyssynergic contraction.

The invention discloses a sacral nerve stimulation system, which comprises an implanted nerve stimulator, a stimulator programmed controller and a stimulating electrode, wherein the implanted nerve stimulator comprises a MCU (micro-programmed control unit) control module, a special chip, a protection circuit module, a power management module and a radio frequency communication module; the stimulator programmed controller comprises an ARM control module, a USB communication module, a charger module, a medical implanted equipment special communication module, a storage module, a display module and a key module; the stimulating electrode is connected to the special chip; and sacral nerves are directly stimulated after a stimulating pulse is received. The implant stimulator disclosed by the invention, by generating lasting electric pulse, can conduct electric stimulation on target nerves in a plurality of parts; the implant stimulator is controlled by the stimulator programmed controller in vitro; and the stimulation system achieves a satisfying effect when applied to such fields as uracratia, urinary retention, Parkinson, spinal neuralgia, peripheral electrical stimulation therapy and the like.

The invention discloses a sacral nerve puncture navigation template and a manufacturing method thereof, which are used in the clinical application of sacral nerve puncture surgery. One end of the column facing away from the base plate and the lower surface of the base plate; the manufacturing method of the sacral nerve puncture navigation template includes the following steps: preparing a medical imaging system and a 3D printer; obtaining the bone tissue pattern and the skin tissue pattern of the patient's sacral plexus; simulating the sacral plexus. The puncture path and sacral foramen of the sacral nerve; delineate the coverage area of ​​the sacral nerve puncture navigation template and make a floor pattern; make a guide post pattern to make a sacral nerve puncture navigation template pattern; make a sacral nerve puncture navigation template. The advantages and beneficial effects of the present invention are: realizing rapid puncture, reducing operation time and patient bleeding, improving the accuracy and success rate of the operator's operation, reducing radiation absorption by the operator or patient, and protecting the operator or patient health.

The invention relates to an implanted bladder function repairing system, comprising an electrode, a nerve signal amplifier, a nerve signal processing circuit and a nerve electronic stimulator, wherein the electrode is fit with a sacral nerve root sleeve; the electrode is connected with the nerve signal amplifier and used for sending the nerve electrical signal received from a sacral nerve posterior root in the sacral nerve root sleeve to the nerve signal amplifier to be amplified; the nerve signal amplifier is connected with the nerve signal processing circuit and used for sending the amplified nerve electrical signal to the nerve signal processing circuit to be processed; the nerve signal processing circuit determines whether a human body needs to urinate according to the amplified nerve electrical signal, and sending a urinating signal to the connected nerve electronic stimulator if the human body needs to urinate; the nerve electronic stimulator sends a simulating electrical signal to the connected electrode according to the urinating signal; and the electrode stimulates the sacral nerve root sleeve by the simulating electrical signal to cause the sacral nerve in the sacral nerve root sleeve to control a bladder to urinate by the anterior root. The implanted bladder function repairing system can help patients to urinate as required.

The invention provides a wireless charging device and a sacral nerve stimulation system thereof. A charging receiving coil is arranged in an implant. When the electric quantity of a built-in battery is insufficient, an extracorporeal charging transmitting coil is arranged at the position matched with the charging receiving coil, and wireless charging for the built-in battery is performed through coupling between the coils. Besides, an intracorporeal charging control unit is also arranged in the implant to detect the electric quantity of the built-in battery and transmit the detected electric quantity information to the outside through the first antenna and the second antenna of the sacral nerve stimulation system so as to prompt a user to charge the built-in battery. Furthermore, when the built-in battery is charged, the charging receiving coil also supplies power to stimulating electrodes so as to ensure that the stimulating electrodes can still perform current stimulation on sacral nerves in charging. The risk of replacing the intracorporeal battery can be reduced for patients and the safety of the sacral nerve stimulation system can be increased.

The invention discloses a personalized artificial sacrum prosthesis based on additive manufacturing, and relates to the field of medical instruments. The personalized artificial sacrum prosthesis based on additive manufacturing comprises a T-shaped main body and locking pieces, wherein the T-shaped main body comprises a longitudinally arranged bearing area and a connecting area transversely arranged below the bearing area. The personalized artificial sacrum prosthesis comprises the main body and the locking pieces, bears the lumbar vertebra and the pelvis and has high strength, high matching degree with a reconstruction area and natural bearing stability; screw fixing positions are accurate and sufficient, the bone mass of screw placing parts is rich, and the firmness is higher; A lightweight design concept is adopted, and the weight of an implant is reduced as much as possible on the premise of ensuring the strength of vertebral bodies; due to the arc design, a nerve root walking channel is reserved, and sacral nerve clamping and pressing are avoided; and the bone contact surface is rough and porous, instant stability and bone ingrowth are facilitated to form biological internal fixation, and personalized accurate reconstruction of a sacrum total incision bone defect area can be realized through detailed preoperative planning.

The invention provides a sacral nerve stimulator which comprises an external controller and an implanted stimulator which is implanted into the body. The implanted stimulator comprises a transceiver circuit, a single-chip microcomputer, a stimulation pulse generating module and an electrode bundle. The electrode bundle comprises at least two electrodes. The end of each electrode is provided with a stimulation point which is used for contacting with the sacral nerve, and furthermore two electrodes in the electrode bundle are working electrodes. The external controller and the implanted stimulator perform bidirectional communication in a wireless manner. The sacral nerve stimulator can stimulate the sacral nerve according to a parameter which is preset by a user for treating frequent urination and urgent urination and realizing controlled urination, and furthermore can acquire sacral nerve electric signals and tissue impedances for mastering an internal practical physiological condition of patient body.