66 results about "Ulnar digital nerve" patented technology

The present invention involves a system and methods for nerve testing during anterior surgery, including but not limited to anterior disc replacement surgery, nucleus replacement, and interbody fusion.

Methods and systems for spinal radio frequency neurotomy. Systems include needles capable of applying RF energy to target volumes within a patient. Such target volumes may contain target medial branch nerves along vertebrae or rami proximate the sacrum. Such procedures may be used to ablate or cauterize a portion of the targeted nerve, thus blocking the ability of the nerve to transmit signals to the central nervous system. Disclosed needles may be operable to asymmetrically, relative to a central longitudinal axis of the needle, apply RF energy. Such asymmetry facilitates procedures where a tip of the needle is placed proximate to anatomical structures for location verification. Then RF energy may be applied in a selectable direction relative to the needle tip to ablate volumes that include the targeted medial branch nerves or rami, thus denervating facet joints or the sacroiliac joint, respectively, to relieve pain in a patient.

A low-profile, simple, orthotic glove with wrist support attachment for treating loss or impairment of extensor and / or flexor muscle function in the upper extremities, particularly in the wrist, hand and fingers, due to a peripheral neuropathy. The glove is attractive, comfortable, easy to use, and can be made with an optional wrist support attachment either built into the glove or added as an optional attachment, and can include thermoplastic to provide rigidity. The glove has channels into which interchangeable resilient digit extensor elements, or stays, of varying resiliency are placed such that stays of greater or lesser resiliency can be inserted if the degree of the patient's extensor muscle control changes, or the medical practitioner in charge decides that there is a need to change the support and exercise treatment regimens. The splint also has several improvements for thumb support, additional digit extension support, and for supination of the forearm.

An intravascular catheter for nerve activity ablation and / or sensing includes one or more needles advanced through supported guide tubes (needle guiding elements) which expand to contact the interior surface of the wall of the renal artery or other vessel of a human body allowing the needles to be advanced though the vessel wall into the extra-luminal tissue including the media, adventitia and periadvential space. The catheter also includes structures which provide radial and lateral support to the guide tubes so that the guide tubes open uniformly and maintain their position against the interior surface of the vessel wall as the sharpened needles are advanced to penetrate into the vessel wall. Electrodes at the distal ends of the guide tubes allow sensing of nerve activity before and after attempted renal denervation. In a combination embodiment ablative energy or fluid is delivered to ablate nerves outside of the media.

The use of red or near infrared light upon neurons of the lumbar plexus that are in distress due to retraction-induced ischemia. The surgeon may protect nerves made ischemic in the surgery by:a) making an incision in a patient,b) inserting an access device into the patient through the incision to at least partially create a path to a spine of the patient, andc) irradiating nervous tissue adjacent the path with an amount of NIR or red light effective to provide neuroprotection.

The invention discloses an operation supporting sleeve and a puncture guiding needle capable of being used by combination, which are characterized in that the main body of a sleeve (1) is a round tube provided with an opening (2) on the tube wall, the head of the puncture guiding needle (4) is spiny, and when used by combination, the sleeve (1) is sleeved on the tail of the puncture guiding needle (4). The operation supporting sleeve and the puncture guiding needle are convenient to use and have high security. The operation supporting sleeve and the puncture guiding needle are mainly used forcutting off ligamenta or cutting part of the ligamenta in operative treatment of nerve compression wounds on a wrist or other parts and incising deep tissues in a minimally invasive surgery.

The problem of positioning one or more nerve ends inside a sheathing implant is solved by the use of a pulley and cinching systems that pull a nerve end into an implant and that can adjust the diameter of an implant to conform the implant to the diameter of the nerve, respectively. The pulley system utilizes a suture that traverses the wall of an implant leaving one end outside the implant wall and another end that can be attached to a nerve. Pulling the suture end outside the wall pulls the nerve attached to the other end of the suture into the bore of the implant. A cinching system utilizes specially arranged sutures within the wall of an implant to tighten or cinch up the wall after a nerve is placed therein, so as to conform at least part of the implant to the diameter of the nerve. Methods are also disclosed by which such pulley systems can be formed during an intraoperative procedure.

Nerve stimulation devices and methods for performing non-invasive nerve stimulation are provided that are particularly well suited for performing non-invasive stimulation of one or both of the great auricular nerve and auricular branch of the vagus nerve through a target nerve junction in the neck of the subject. The nerve stimulation devices use dry electrolyte electrodes that (1) are comfortable to use, (2) suitable for long-term use, (3) avoid delivering painful shocks to the subject, (4) do not require soaking of the electrodes in saline solutions or covering them in sticky or wet gels, (5) do not require skin preparation, and (6) avoid causing muscle contraction in areas outside of the target nerve junction containing the great auricular nerve and the auricular branch of the vagus nerve during use.

The invention discloses an alternative wrist elbow joint prosomatosensory reconstruction method based on a nerve electrical stimulation system, and the method comprises the following steps: 1) pasting a discharge stimulation module on the upper arm of a user, and wearing an artificial limb; an angle sensor is arranged in the artificial limb; (2) the angle sensor monitors limb movement posture information of a user and transmits the limb movement posture information to the microcontroller; 3) the microcontroller generates an electrical stimulation mode according to the motion posture information or the electrical stimulation parameter information; and 4) the microcontroller controls the electrical stimulation module to generate electrical stimulation acting on the user according to the electrical stimulation mode, and transmits the electrical stimulation mode to the mobile terminal for display through the data transmission module. According to the invention, the proprioceptive feeling of the user is combined with the motion state of the artificial limb by utilizing the skin superficial feeling mode of the residual limb of the amputee, so that the induced alternative feeling is closer to the natural feeling.

The present invention relates to a mechanical wound cleansing device comprising a carrier layer and an abrasive loop system arranged above the carrier layer, whereby the loop system is an intermeshed fiber system which is intermeshed above the carrier layer and / or a loop system comprising highly and softly abrasive loops. The present invention further relates to a method of producing said mechanical wound cleansing device. The present invention finally relates to the use of said wound cleansing device for the abrasive removal of and cleansing of wounds, especially for venous leg ulcers, diabetic foot ulcers (neuropathic and neuro-ischemic), arterial ulcers, mixed etiology ulcers, pressure ulcers or traumatic wounds.

The present disclosure provides a neuromodulation method for treating the syndromes of a low urinary tract dysfunction. The neuromodulation method comprises attaching a first active electrode to a first patient's leg in the back of the knee area in proximity of a peroneal nerve of the first leg. Attaching a second active electrode to a second patient's leg in the back of the knee area in proximity of a peroneal nerve of the second leg. Attaching a grounding electrode to the patient's body. Generating electrical pulses by a pulse generator connected to the first, the second active electrode and a grounding electrode. Stimulating by the first and the second active electrodes the peroneal nerve of the first and the second leg and controlling via control unit a flow of the generated pulses to each of the first and second active electrode.

The invention provides a bridging dissection locking bone plate for fixing comminuted fracture of a humerus shaft on the rear outer side. The inner surface of a bone plate body is attached to the rearside surface of the humerus shaft and the external epicondyle of the humerus, and a dissection structure is matched with the bone fracture plate body; the bone plate body sequentially comprises a tapered periosteum stripping area, a first fixing area, a radial nerve decompression area and a second fixing area from the near end to the far end, the longitudinal section of the tapered periosteum stripping area is a right triangle, and one right-angle side of the right triangle is attached to the surface of the humerus shaft; the first fixing area is provided with a plurality of locking screw holes and locking and pressurizing combination screw holes which are perpendicular to the surface of the humerus shaft which is attached to the first fixing area; and a groove is formed in the outer surface of the radial nerve decompression area, and the edge of the groove is an arc-shaped transition area; the shape of the second fixing area is matched with that of a distal humeral epicondyle anatomical structure, and a plurality of locking screw holes are formed in the second fixing area in the length direction. In the process of fixing the comminuted fracture of the humerus shaft, blood supplyof the broken end of the fracture is not damaged, nerves are not damaged, and operation time is short.

The invention relates to a method for manufacturing a head hierarchical dissection three-dimensional scanning specimen. The method comprises the following steps: selecting materials; sequentially removing skin, superficial fascia, latissimus jugular muscle, parotid gland, superficial vascular nerve, cap aponeurosis, masseter, periosteum and temporal muscle, opening zygomatic arch and mandible, removing sternoclavicular mastoid muscle, parietal bone of cranial top, frontal bone, temporal bone and occipital bone, cutting to open superior sagittal sinus, removing dura mater, brain, mandible, zygomatic major muscle, zygomatic minor muscle, orbiculus oculi muscle, trapezius muscle, capsid muscle, diabdominal muscle, deorbital horn muscle cheekbone, endocranium, and veins, removing styloid process tongue bone muscles, external rectus, arteries, styloid process pharynx muscles and styloid process tongue muscles, removing auricles, opening temporal bones, and performing median sagittal incision; then, trimming and cleaning the dissected specimen, and pasting specimen muscles, blood vessels and nerves to the original corresponding positions; and finally, combining and processing the 3D scanned images into a complete digital 3D model, so that the scanned specimen is complete in shape and structure, free switching can be realized, and observation and learning are facilitated.

The invention relates to an intervertebral fusion implant for fusing two adjacent vertebrae (9, 9'), comprising a base piece (2) and a top piece (3) which in each case are designed to come to rest against a facing end plate (92) of one of the adjacent vertebrae (9, 9'), wherein the top piece (3) is vertically adjustable relative to the base piece (2), wherein a ratchet device (4), which effects a vertical adjustment in steps and secures a set height against reversion, is provided between the base piece (2) and the top piece (3). Thus a defined expansion can be achieved which is dependent upon the number of actuations. Precise control over the state of expansion is enabled in a purely haptic manner. Furthermore, implantation instruments are provided which are configured as parallel spreaders and have a stop as spreading path limiter or co-operating force and path measuring device. Thus it can be implanted more reliably, wherein the risk of overloading or injury to the vertebrae and the nerves and ligaments of the vertebrae is decreased.

The invention discloses an upper limb spasm measuring device. The upper limb spasm measuring device comprises a supporting plate, an angle sensor, a force sensor, a support, a transmission device, a motor, a mechanical gear structure, a micro-processing unit and an upper computer. The device measures the change data of the wrist joint angle, the angular speed, the accelerated speed and the resistance borne by the wrist joint in the process that the wrist joint of the upper limb is stretched at different angular speeds, and the measured data is processed, displayed and stored; and a biomechanical model is established according to the measured data to estimate the composition of the resistance under passive stretching of the upper limb, the nerve component and the non-nerve component of spasm are directly and effectively distinguished, the problem that the current spasm component is difficult to distinguish is solved, a basis is provided for diagnosis and evaluation of clinical spasm, meanwhile, guidance is provided for rehabilitation treatment of a spasm patient, and operation is easy and convenient.

An apparatus for use in peripheral nerve field stimulation (PNFS) whereby a plurality of curved introducer needles, of varying curvatures, are provided to permit the physician to best locate the region of oligodendrocytes that contain the A Beta fibers by matching the lumbar lordosis. A wing device is also provided that is attachable to the hub of the curved needle introducer which gives the physician better ability to maneuver the needle during insertion as well as permitting tenting of the skin. The invention benefits a large number of painful disorders arising from pathology in the cervical, thoracic, and lumbar spine. In addition, this invention can also help a large number of other conditions including but not limited to failed back surgery syndrome / post-laminectomy pain, occipital / suboccipital headaches, scar pain, post herpetic neuralgia pain, mononeuritis multiplex, and pain following joint surgery (e.g., knee, hip, shoulder).

A joint distraction device for use in an arthroscopic surgery is provided. The device has a joint distraction mechanism, situated in between two bone fixation surfaces, and is capable of changing the relative distance between these two surfaces. The force generated by the mechanism should be sufficient to insert bone spikes affixed to the surfaces into bone, as well as distract the joint to create a sufficient enough gap to allow the intended procedure. With the surfaces and spikes engaged to bone at opposite sites of a joint, an increase in distraction force results in an increase in the relative distance results, hence increasing the space within the joint. Embodiments of this invention, compared to fracture table approaches, effectively eliminate the risk of pudendal nerve injury, allow for longer surgical times, and allow for much more controllable joint distraction.