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PubMed · 6732538

[Technic for research on pain sensitivity. Practical note].

A A Barreira·P Salioni
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Abstract

A disposable hypodermic needle introduced into the end of its cover at right angles represents a useful tool for the determination of sensitivity to pain. This tool is more comfortable to use for the examiner and permits more adequate measurement of the muscular force used for the different stimuli when compared with pins, needles and sharp tools specially manufactured for the evaluation of superficial cutaneous sensation to pain.

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Disposable EquipmentHumansMethodsNeedlesPainSensationEnglish AbstractJournal Article

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A A Barreira, P Salioni. 1984. [Technic for research on pain sensitivity. Practical note].. https://doi.org/10.1590/s0004-282x1984000100016

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Evaluation of flow rates for six disposable infusion devices.

The accuracy of flow was studied for six disposable infusion devices: Eclipse (Block Medical), Homepump (Block Medical), Intermate (Baxter Healthcare), MedFlo (Secure Medical), ReadyMED (McGaw), and SideKick (I-Flow). Each infusion device had a preset delivery rate of 100 mL/hr. Either 48 or 50 units of each device were filled with 100 mL of 0.9% sodium chloride injection. Flow was measured in a 60-mL syringe set 100 cm above the infusion device. The volume infused was recorded over 60 minutes at 5-minute intervals. Of the six devices tested, Homepump demonstrated the least variability in flow. The mean percentage of initial volume infused at 60 minutes was 93.7% for the Homepump, 92.4% for the MedFlo, 91.9% for the SideKick, 88.7% for the ReadyMED, 87.3% for the Eclipse, and 83.4% for the Intermate. The Intermate was the only device with a mean overall infusion rate outside the manufacturer's specifications of +/- 15%. The SideKick's mean infusion rate exceeded the +/- 15% range during the first half of the infusion. None of six disposable infusion devices delivered 100% of the volume to be infused within 60 minutes. Of the devices tested, the Homepump demonstrated the least variability in flow and the most complete volume delivery.

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