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Pump presentation cds ver2
- 6. Syringe Pump
- 11. Latch Cam followers (fingers) Pressure sensor Air in line detector
- 19. If you accidentally use a BLUE 1hr pump instead of a GREEN 24 hour pump, you will deliver the drug at 24 times the intended rate.
- 23. Latch closed Clamp open
- 24. Latch open Clamp closed
- 38. Tissuing (Extravasation) Extravasation occurs when fluid that should be delivered intravenously is inadvertently delivered into a tissue space.
Hinweis der Redaktion
- Show infusion set
- Syringe Pump: Most widely used syringe pump in NGD, Alaris Asena Top - control buttons and display showing flow rate and volume delivered by pump. Chance to look at setting up a pump later. Syringe plunger connected to syringe pump carriage and held in place by the syringe plunger clamp. As motor turns, carriage moves, plunger depressed, fluid infused Syringe clamp – two purposes. Holds syringe in place Detects size and manufacturer from diameter. If incorrect, will get error in rate calculation. Important to confirm size AND manufacturer before starting infusion. Important that any label attached to syringe kept well clear of the syringe clamp or should not obscure the scale, as this need to be read while infusion being given.
- Long start up time i.e. delay between starting infusion and patient receiving medication. Caused by mechanical backlash/slack in pump drive. To reduce start up Prime line before installing syringe in pump Before connecting line to patient, use pump’s purge facility to take up the mechanical slack.
- Most widely used volumetric pump in NG is Alaris Signature LHS control and displays, large display showing flow rate in ml/h, smaller displaying giving additional information again not discussing in detail RHS is the dedicated infusion set – show, built-in flow clamp
- Medicines & Healthcare products Regulatory Agency (England & Wales) Scotland, SHS, no statistics published
- In NG, std infusion pump prescription and medication sheet used in attempt to reduce medication errors
- 2 version of this ambulatory battery operated pump. Simple pump, no syringe size detection, so as it cannot know the volume of fluid contained in the syringe, it is calibrated in mm of syringe movement. If that doesn’t make dose calculations difficult enough, we have two version of same pump: mm/hr and mm/day (24hr). Only obvious difference is colour. Confusion between these two models of pump have led to a number of fatalities in UK In GGH a senior experience ward manager, unable to find a pump from her own unit, borrowed one from another unit
- … and it wasn’t realised it was blue (mm/hr) instead of the normal green (mm/24Hr) pump. Result – pt got 24 times prescribe dose rate. No fatality this time, close run incident.
- Latch open – demo on 597
- Infusion set not inserted correctly – demo on 597, show next slide at same time
- Latch open – demo on 597 Infusion set not inserted correctly – demo on 597
- What happens if syringe is not correctly secured, plunger is allowed to move – DEMO free flow Also mention particular hazard of MS16A/26. No alarms, syringe only held in by rubber band, easily dislodged
- Luer lock syringe, reduces chance of air leak Always user an anti free flow (or anti-syphon) set DEMO
- Not instant, dependent on the occlusion pressure level which on most pumps is adjustable, and flow rate.
- Interruption to therapy – can be hazardous – e.g. later Post occlusion bolus. Occlusion, pump continues to attempt to deliver fluid until preset pressure is reached and pump stops and alarms. Because of the compliance (give) of the set (tubing), tubing expands under the increasing pressure. When occlusion released (kink removed) extra fluid under pressure is released and delivered to patient as a bolus. In some fast acting drugs, that can prevent a hazard. Some modern pumps have a “backoff” facility, when occlusion occurs pump briefly runs backwards to reduce the pressure and potential bolus.
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