AN IMPROVED SPINAL PUNCTURE NEEDLE AND PRESSURE APPARATUS
نویسندگان
چکیده
منابع مشابه
[Relationship between spinal function and the severity of spinal cord injury by needle puncture].
OBJECTIVE To observe the changes in spinal cord pathophysiology, motor function and electrophysiology after spinal cord injuries induced by punctures with different needles, and explore a new means for studying spinal neurotoxicity of local anesthetics. METHODS A total of 144 SD rats were randomly allocated into the sham-operated group (n=36) and 3 spinal cord injury groups (n=36) with the L4...
متن کاملComparison of cutting and pencil-point spinal needle in spinal anesthesia regarding postdural puncture headache
BACKGROUND Postdural puncture headache (PDPH), mainly resulting from the loss of cerebral spinal fluid (CSF), is a well-known iatrogenic complication of spinal anesthesia and diagnostic lumbar puncture. Spinal needles have been modified to minimize complications. Modifiable risk factors of PDPH mainly included needle size and needle shape. However, whether the incidence of PDPH is significantly...
متن کاملNew sternal puncture needle.
The needles most commonly used for obtaining bone marrow aspirates from the sternum are the Salah and Klima needles. They were designed in the 1930s, and except for the introduction of different kinds of stops and guards there has been no change in their basic structure and design. These instruments are small, do not fit properly in the operator's hand, and the lack of a T-bar handle often make...
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A new model for the vapor phase of a pressurized liquid called "the cluster model: which is originally introduced in this work, along with an accurate equation of state for the liquid phase called the LIR, is used to derive an accurate equation for the vapor pressure of liquid as a function of external pressure. The chemical Potential of both phase have been found to be in good agreement wi...
متن کاملeffects of oral tizanidine premedication on pain and hemodynamic responses after spinal needle skin puncture
background: although a variety of methods have been suggested to reduce stress, anxiety and pain intensity due to spinal needle skin puncture, their adverse effects restrict theirs widespread administration. in this study we evaluated the effects of oral tizanidine on the reduction of pain caused by spinal needle puncture and hemodynamic responses. methods : in this double blind randomized clin...
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ژورنال
عنوان ژورنال: Journal of the American Medical Association
سال: 1919
ISSN: 0002-9955
DOI: 10.1001/jama.1919.26110050002010a