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Dosin - A new Pump Device. Its Construction and Function.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
2007 (English)In: Uppsala Journal of Medical Science, Vol. 112, no 1, p. 83-93Article in journal (Other academic)
Abstract [en]

ABSTRACT The research and development of the Dosin® and the medical injection system in which it is used was initiated in response to a demand for a new and improved method of delivering fluids to patients. The key requirement was to make the use of refillable syringes obsolete in a cost- effective and user-friendly alternative. Most syringes, despite their accurate delivery quotas, have a limited volume that necessitates frequent monitoring and filling or changing. This very act is time consuming and potentially dangerous in inexperienced hands. The new principle of the device makes it capable of delivering (medical) fluids of various consistencies in extremely precise amounts regardless of the fluid viscosity. The outlet of the Dosin® goes through another innovation, the bubble detector, which detects any change in direction of a light beam that passes through the content of the outlet. Thus, should an air bubble enter the outflow and hence be about to enter the blood stream of a patient, the flow of fluid will halt immediately and an alarm will notify the user of the problem.The cyclic flow is useful in interventional radiology since it prevents clotting and increases the mixing with the blood. The flow rate varies from 0.03 mL/s to 5 mL/s and it is recommended to use fluid with a viscosity lower than 3 mPa.s. The outlet pressure is recommended below 300 mm Hg. The Dosin® must be replaced after each patient, alternatively after maximum 24h continuous use.

Place, publisher, year, edition, pages
2007. Vol. 112, no 1, p. 83-93
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-6004Local ID: 7799OAI: oai:DiVA.org:ri-6004DiVA, id: diva2:963839
Available from: 2016-09-08 Created: 2016-09-08Bibliographically approved

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