6 research outputs found

    Pressure Sensitive Skin for Prosthetic Hands:2D Contact Location Determination Using Output Connections from a Single Side

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    The human hand is a vital component of our interaction with the environment, containing a large number of sensory receptors. The loss of a hand is, therefore, a serious and debilitating injury. Surveys have shown that 98% of users of upper limb prostheses desire to feel the level of force they apply through their prosthetic hands. Developments in tactile sensors have yielded many functional electronic skins. However, their complexity remains a barrier to their use in commercial prosthetic hands. This paper introduces a new design of a simple, flexible pressure sensor using carbon fibre tows as both the sensor and the electrodes. The design results in a dynamic pressure range of 0.35 to 280 kPa in a 25-by-25 mm prototype.</p

    Urinary Bladder Innervation Within the Sacral Roots of a Sheep

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    Managing the urinary bladder after spinal cord injury is of primary importance because neurogenic dysfunction leads to life-threatening complications. Sacral Anterior Root Stimulators that control the bladder have been available for many years, however, these devices cannot sense the fullness of the bladder or detect the onset of reflex voiding. In order to address this fundamental limitation, this paper explores the possibility of recording the neural signals that encode bladder fullness from the sacral roots in sheep using extra-neural books. Stimulation of and recording from six roots (S1, S2 and S3 bilaterally) shows that efferent and afferent pathways seem to be co-located within roots, but also that simultaneous recording from multiple roots may be useful to enhance overall signal quality

    Urinary bladder innervation within the sacral roots of a sheep

    Get PDF
    Managing the urinary bladder after spinal cord injury is of primary importance because neurogenic dysfunction leads to life-threatening complications. Sacral Anterior Root Stimulators that control the bladder have been available for many years, however, these devices cannot sense the fullness of the bladder or detect the onset of reflex voiding. In order to address this fundamental limitation, this paper explores the possibility of recording the neural signals that encode bladder fullness from the sacral roots in sheep using extra-neural books. Stimulation of and recording from six roots (S1, S2 and S3 bilaterally) shows that efferent and afferent pathways seem to be co-located within roots, but also that simultaneous recording from multiple roots may be useful to enhance overall signal quality. </p

    The use of advanced‐platelet rich fibrin (A‐PRF) in the management of medication‐related osteonecrosis of the jaw (MRONJ): A case report

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    Abstract Medication‐related osteonecrosis of the jaws (MRONJ) is a serious debilitating disease resulting from long‐term treatment with Antiresorptive drugs such as Bisphosphonates or Denosumab, which significantly affects patients' quality of life. A 43‐year‐old female patient with stage 4 breast cancer and treated with Zoledronic Acid for bone metastases was referred to the Department of Oral Medicine at the Faculty of Dentistry, Damascus University. The main complaint was pain in the right maxilla. Intraoral examination showed an exposure of necrotic bone in the right maxillary region with presence of purulent exudate. The treatment plan was discussed with the patient. Treatment included resection of all necrotic bone and application of Advanced platelet‐rich fibrin (A‐PRF) clots and membranes. Follow‐up and outcome were conducted by clinical measures to assess healing and recurrence (6‐month follow‐up). Topical treatment with A‐PRF demonstrated a reduction in pain and resulted in complete wound healing within 30 days. A‐PRF stimulates the release of growth factors and chemotaxis involved in tissue repair mechanisms. This method seemed to be effective in the treatment of MRONJ
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