44 results about "Nerve bundle" patented technology

A curved paddle electrode allows the electrode to be placed over a relatively flat or oval shaped nerve bundle attached to fascia tissue without having to separate the nerve bundle from the fascia tissue. The electrode includes at least one suture hole that allows the electrode to be held in place over the nerve bundle through a clip-on stitch, or equivalent. In one embodiment, the curved paddle electrode provides a tripolar electrode configuration that allows three spaced-apart parallel electrode contacts to be positioned transverse to a target nerve bundle. Such electrode configuration allows bipolar or tripolar stimulation to occur. Other embodiments employ less or more than three electrode contacts. A preferred application of the curved paddle electrode is for the treatment of erectile dysfunction (ED), where the electrode is placed over the neurovascular bundle attached to the rectal fascia tissue near the rectum.

A vacuum pump apparatus for neurovascular restructuring of soft tissue includes at least two vacuum pumps connected to separate vacuum suction cups. The vacuum pumps are independently adjustable to a certain level of vacuum, as well as, hold time and release time. The vacuum suction cups are applied to areas of soft tissue that have suffered trauma or are otherwise causing pain. The vacuum action acts to lift and separate fascia and muscle tissue to allow for proper blood flow and alleviation of compression on nerve bundles.

The invention discloses an implantable electrostimulation limb movement function regulation device. A body surface detecting electrode is adopted to collect body surface myoelectric action potential signals during movement at a site corresponding to a healthy limb, the body surface myoelectric action potential signals are amplified and filtered by a signal processing circuit, pulse amplitude modulation technology is utilized to modulate the body surface myoelectric action potential signals onto high-frequency carriers, high-frequency signals after being modulated are applied onto an in-vitro coil to generate a high-frequency electromagnetic field, the in-vitro coil is coupled on a coil of an in-vivo implantable electrode to generate high-frequency voltage, stimulating voltage pulse is formed after amplitude detection, the stimulating voltage pulse is applied onto an in-vivo electrode contacting with a controlled nerve bundle, and action potential is excited in the nerve bundle so as to realize movement of a paralytic limb. The body surface electrode is pasted on the healthy limb to acquire movement related myoelectric signals, so that the device has the advantage of non-intrusion; the in-vivo implantable electrode is adopted for functional electrostimulation, so that the device has the advantages of low stimulation voltage, high control sensitivity and high selectivity.

The invention discloses a method for nerve tracking, a non-temporary computer readable medium and equipment. The method includes performing a neural tracking procedure on the diffusion nuclear magnetic resonance image of the brain of the subject through a plurality of verified better tracking parameters to obtain a plurality of first tracking images; intercepting a plurality of nerve fibers between the two first regions of interest from each first tracking image; and establishing a nerve bundle skeleton from the nerve fibers intercepted by the plurality of first tracking images according to asuperposition program, and finally selecting a plurality of nerve fibers with a structure similar to that of the nerve bundle skeleton to obtain a specific nerve bundle of the tested person. Accordingly, the method for nerve tracking, non-transitory computer-readable medium, and apparatus may be used to achieve improved sensitivity to nerve tracking, and contribute to improving effects of pre-operative assessment and intra-operative navigation.

The invention discloses a nerve fiber model for quality control of magnetic resonance diffusion imaging and a preparation method thereof. The model comprises a magnetic resonance compatible container,agarose gel placed in the container and orderly arranged electrospun fibers having a channel structure immobilized in the agarose gel, wherein the mass concentration of the agarose gel is 1-2%, and the outer diameter of the duct of the electrospun fiber with the duct structure is 1-20 microns, and that pipe is filled with water. The spinning fibers with the channel structure are fixed in the agarose gel according to the spatial distribution of the main nerve bundles of the human brain in the human brain.

The invention provides a manufacturing method of a sandwich-type composite membrane support, constructing a polylactic acid/bioactive glass/chitosan sandwich-type composite membrane carrier loaded with biologically active factors; comprising the following steps: Mesoporous bioactive glass with active factors, chitosan membrane loaded with seed cells as the outer sealing layer, sandwich layer and inner controlled release and stem cell scaffold layer; 2) The sandwich layer of bioactive glass loaded with bioactive factors is covered on the polymer On the lactic acid film, the chitosan membrane loaded with seed cells was covered on the bioactive glass layer to construct a sandwich composite membrane carrier. To solve the problem that a single nerve bundle that has been damaged (but not dead) cannot be repaired and treated by the existing technology; the existing drug-loading system cannot achieve the directional release of the drug and cannot guarantee the high concentration of the damaged local factors.

Shoulder dystocia occurs most frequently during the birth of large infants, where the shoulders remain impacted, and lateral traction on the fetal neck with evulsion of the brachial plexus may cause brachial plexus injury. The idea is to prevent excessive lateral bending of the infant's head, its ensuing stress, and damage to the brachial nerve bundle. This invention consists of a special head brace, which limits the lateral movement of the baby's head with respect to the clavicle, and can be quickly mounted when required by the specific medical situation. Its design in two sections provides a snug fit, regardless of the infant's head size, and permits its installation in the little time available to complete the birth process.

The invention provides a living body nerve scaffold with a central perfusion system and a manufacturing method of the living body nerve scaffold. The living body nerve scaffold is manufactured by three-dimensionally culturing a nerve bundle in vitro with a lumen structure, modifying endothelial cells on the inner wall of the lumen of the nerve bundle, and manufacturing under the condition of perfusion culture. In the perfusion culture process, the shear stress of a fluid can improve the activity of endothelial cells, construction of vascularized nerve tracts is facilitated, and therefore localblood supply of the nerve tracts in the early stage after the nerve tracts are implanted into the body is improved. Meanwhile, the shear stress of the fluid can promote proliferation and differentiation of the neural stem cells, and perfusion culture can enable the nerve tracts to obtain more sufficient nutrient supply and reduce the concentration of metabolic wastes in a cell growth environment,so that the nerve tracts with higher cell density are obtained.