observations on the use of tantalum foil in peripheral nerve

Use of a perineural coiled catheter at the sciatic nerve ...

The analgesic effects of peripheral nerve blocks can be prolonged with the placement of perineural catheters allowing repeated injections of local anaesthetics in humans. The objectives of this study...

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Embryology History - Viktor Hamburger - Embryology

HAMBURGER V. (1946). The use of tantalum foil as a mechanical block for the separation of spinal cord and brain in chick embryos. Anat. Rec., 94, 355. PMID: 21020493. HAMBURGER V & HABEL K. (1947). Influenza-A virus as a teratogenetic agent in chick embryos. Anat. Rec., 99, 569. PMID: 18935367. HAMBURGER V & HABEL K. (1947).

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Lithium enhances remyelination of peripheral nerves | PNAS

Mar 06, 2012· Glycogen synthase kinase 3β (GSK3β) inhibitors, especially the mood stabilizer lithium chloride, are also used as neuroprotective or anti-inflammatory agents. We studied the influence of LiCl on the remyelination of peripheral nerves. We showed that the treatment of adult mice with LiCl after facial nerve crush injury stimulated the expression of myelin genes, .

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Acetylcholinesterase-positive nerves of the rhesus monkey ...

3. Regression of the intrinsic nerves and of their afferent receptors following thoracic sympathectomy, cervical vagotomy or thoracic stripping of the vagus. Arch Surg. 1968 Jan; 96 (1):149–155. HONJIN R. On the nerve supply of the lung of the mouse, with special reference to the structure of the peripheral vegetative nervous system.

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Peripheral Nerve Surgery—Technical Considerations in ...

Highet, W. B., and Holmes, W. Traction injuries to the lateral popliteal nerve and traction injuries to the peripheral nerves after suture. Brit. J. Surg., 1942, 30: 212–233. ... The use of tantalum wire and foil in the repair of peripheral nerves. Surg. Clin. N.

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TREATMENT OF PAIN USING ELECTRICAL NERVE CONDUCTION BLOCK ...

For example, the target nerve can include neural tissue in a region of a subject's spinal cord and/or an associated peripheral nerve. The system 10 can apply an electrical nerve conduction block (ENCB) to the region of the spinal cord and/or the associated peripheral nerve to block the signal transmission. Advantageously, the ENCB can be ...

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Assessing mucociliary transport of single particles in ...

Tantalum disks (350 × 25-μm) were punched from tantalum foil (Sigma). The average particle mass was 55 µg. Newborn pigs were anesthetized with 20 mg/kg ketamine and 2 mg/kg acepromazine delivered IV, and then sedation was maintained with IV propofol. Pigs .

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(PDF) Tissue response to porous tantalum acetabular cups ...

Twenty-one tantalum stems and 6 out of 13 niobium stems were evaluated after observation periods up to 14 months. Four loose tantalum stems and 3 loose niobium stems were discovered.

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Electrospun nanofibers for neural tissue engineering ...

1. Introduction Peripheral nerve injuries often result from acute trauma and may lead to chronic sensorimotor defects due to the lack of a successful and robust reparative technique. 1 Clinically, the typical procedures for repairing injured peripheral nerves are based upon either direct coaptation of the transected nerve stumps (in the case of small nerve defects) or the use of nerve grafts ...

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Assessing the Effect of Methyl-Mercury on the Rate of ...

Sympathetic nerve chains of the peripheral nervous system, isolated from Gallus gallus, were treated with two different methyl-mercury concentrations. The cultures were ... kept on ice and wrapped in aluminum foil to protect from light. For each culture, the ... Preparation of Observation Chamber:

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US5899922A - Manipulation of nervous systems by electric ...

Apparatus and method for manipulating the nervous system of a subject through afferent nerves, modulated by an externally applied weak electric field. The field frequency is to be chosen such that the modulation causes excitation of a sensory resonance. The resonances found so far include one near 1/2 Hz which affects the autonomic nervous system, and a resonance near 2.4 Hz that causes ...

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Controlled local release of PPARγ agonists from ...

Aug 11, 2020· Peripheral nerve injury (PNI) is associated with substantial socioeconomic impact as the resulting disability can be debilitating, significantly affecting the patient's quality of life [1–4].Treatments mainly employ microsurgical interventions although additional therapeutics that can be administered following PNI have emerged such as cell therapies, proteins, platelet-rich plasma and gene ...

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Outcome of Traumatic Peripheral Neuromas After ...

The successful treatment of symptomatic neuroma belongs to one of the most difficult and controversial chapters in the neurosurgical therapy of peripheral nerve injuries. Since the early nineteenth century when neuromas were described for the first time by Oldier their pathophysiology and therapy have been intensively investigated.

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Beyond the Cyst | Neurosurgery | Oxford Academic

He made many novel observations about peripheral and cranial nerve anatomy, pioneered nerve anastomosis and grafting techniques, and introduced the concept of fibrin glue. ... nerve suture with tantalum wire and plasma clot. Reproduced from Tarlov IM. ... His ingenious model for a peripheral nerve repair and the use of plasma glue clearly ...

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Development of the Nervous System | SpringerLink

Observations on the early differentiation of the motor neuroblasts in the spinal cord of the chick. ... Isolation of the brachial segments of the spinal cord of the chick embryo by means of tantalum foil blocks, J. Exp. Zool. 103: 113. ... The effects of peripheral factors on the proliferation and differentiation in the spinal cord of chick ...

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Physics B Flashcards - Questions and Answers | Quizlet

The organ directly responsible for turning vibrations into nerve impulses is the _____ . cochlea. The unit for perceived loudness is the _____ . decibel. When a guitar string is exposed to sound waves at its fundamental frequency, the guitar string will _____ . resonate. Anne attends a concert where she stands 10.0 m from the electric bass's ...

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A simple protocol for paraffin‐embedded myelin sheath ...

Wenjin Wang, Sung Kang, Iván Coto Hernández, Nate Jowett, A Rapid Protocol for Intraoperative Assessment of Peripheral Nerve Myelinated Axon Count and Its Application to Cross-Facial Nerve Grafting, Plastic and Reconstructive Surgery, 10.1097/PRS.0000000000005338, 143, 3, (771 .

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Assessment of the biocompatibility of photosensitive ...

The materials were Dupont Kapton foil HN, HD Microsystem PI2611, and Fujifilm Durimide 7020 (PSPI). PI2611 and Durimide 7020 were spin‐coated on silicon wafers, cured at temperatures ranging from 150 to 450°C, and sterilized by autoclave. All materials were evaluated using a scanning electron microscope pre‐ and postcell culture.

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Tantalum - Registration Dossier - ECHA

Tantalum is a ductile, silver grey metal with a molecular weight of 180.9 g/mol. Tantalum metal forms an adherent and stable oxide layer when exposed to air at room temperature, and for this reason it is insoluble in water (water solubility less than or equal to 21.3 µg/L).

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THE HUMAN ELECTROMYOGRAM IN RESPONSE TO NERVE .

It is our purpose in the present paper to describe procedures for applying this method of electromyography to all the important muscle groups of the forearm, hand, leg arid foot and to illustrate its use in measurements on normal subjects, on patients with peripheral nerve injuries and on patients with hysterical paralysis. This method, in which the motor nerve is stimulated .

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Glycosidases in the Nervous System

foil and placed in a moist chamber inside an incubator at 38" for 18 hours. The moist chamber was a covered desiccator, the bottom of which held enough water to provide a moisture- saturated atmosphere. This method of preventing evaporation proved simpler than the use of a protective layer of hexane (8).

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Ethylene Oxide Sterilization | Disinfection ...

The use of ETO evolved when few alternatives existed for sterilizing heat- and moisture-sensitive medical devices; however, favorable properties (Table 6) account for its continued widespread use. 872 Two ETO gas mixtures are available to replace ETO-chlorofluorocarbon (CFC) mixtures for large capacity, tank-supplied sterilizers. The ETO-carbon dioxide (CO 2) mixture consists of 8.5% ETO and ...

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Effect of hyperbaric oxygen combined with -lipoic acid on ...

peripheral nerve function is little, and it has become a difficulty of clinical therapy[1,2]. -lipoic acid is a potent antioxidant with anti-inflammatory effect; hyperbaric oxygen has been recognized to have positive effect on the treatment of DPN, which can increase the oxygen supply and blood supply for peripheral nerve .

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Effect of hyperbaric oxygen combined with -lipoic acid on ...

peripheral nerve function is little, and it has become a difficulty of clinical therapy[1,2]. -lipoic acid is a potent antioxidant with anti-inflammatory effect; hyperbaric oxygen has been recognized to have positive effect on the treatment of DPN, which can increase the oxygen supply and blood supply for peripheral nerve .

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Conduction block of whole nerve without onset firing using ...

1 Introduction. High frequency alternating current (HFAC), when applied directly to a peripheral nerve, can produce a rapid conduction block that is quickly reversible [8, 11, 23, 41, 42].Typical parameters utilized to produce this type of block are a 3–40 kHz sinusoidal wave at 3–10 Vpeak-peak (or 1–10 mA for current controlled studies) [1, 3, 8–10, 16, 38, 41].

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Role of the Vagus Nerves in Bronchoconstriction in Humans ...

Studies of animals have shown the parasympathetic nervous system to influence airway caliber and to mediate reflex bronchoconstriction provoked by chemical or mechanical irritation of the respiratory tract. The involvement of this autonomic system in the bronchial hyperreactivity of humans with asthma has been assessed by comparing bronchomotor responsiveness before .

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US20040015204A1 - Implantable microstimulators and methods ...

Miniature implantable stimulators (i.e., microstimulators) are capable of producing unidirectionally propagating action potentials (UPAPs). The methods and configurations described may, for instance, arrest action potentials traveling in one direction, arrest action potentials of small diameters nerve fibers, arrest action potentials of large diameter nerve fibers.

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Impact of peripheral immune status on central molecular ...

1. Introduction. A growing body of literature indicates that peripheral immune status is an important factor in central nervous system responses to injury or disease (Beers et al., 2008; DeFrancesco-Lisowitz et al., 2015; Ip et al., 2015; Spani et al., 2015).Using the facial nerve axotomy (FNA) model of peripheral nerve injury, our laboratory discovered that immunodeficient mice lacking ...

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Treatment of painful neuromas of sensory nerves in the ...

The use of silicone rubber caps as a secondary procedure over the nerve stump in 32 cases did not improve the ... gold foil, or tantalum.~-~ Steroids, chemical fixatives, and scleros-ing agents, coagulation, and freezing all have been ... These observations suggested that containment of the

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US7809442B2 - Obstructive sleep apnea treatment devices ...

Devices and methods of use are provided for treating a person having a hypoglossal nerve and an upper airway. In one embodiment, a method may include providing a nerve cuff electrode including a cylindrical cuff body. The method may further include chronically implanting the nerve cuff electrode on a portion of the hypoglossal nerve. The method may also include delivering a stimulus to the ...

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