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AccuFlo / AccuFlux Elastomeric Pumps |
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Brief Description of Device
- Provides continuous fluid delivery at pre-determined fixed rate with attached ad
ministration set.
- A silicone balloon is used as both the fluid reservoir of the device and also the pressure (energy) source.
- Flow rate is controlled by the length and lumen size of a micro-bore tube.
- The pump is a disposable device intended for single patient use. It is portable and therefore will not restrict ambulation of the patient.
Brief Description of Intended Use & Indication of Use
- For general infusion use. Routes of infusion include intravenous, subcutaneous, and epidural into the intra-operative (soft tissue / body cavity) site.
- General infusion may include analgesic drugs for pain management; infusion of chemotherapy drugs, and antibiotics.
Features & Benefits
Features |
Benefits |
- Fixed flow rate with dosage varied by drug concentration
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- Adjustment by patients neither required or possible
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- Completely self-powered
- Self-generated by pressure from elastomeric balloon
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- No electricity / battery required
- Eliminates gravity flow problem
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- Filling port equipped with one-way injection valve
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- Activated by connecting to luer lock or luer slip syringe
- Allows easy and safe filling
- Prevent back-flow of fluid
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- Pre-attached administrative tubing
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- Easy (almost instant) priming
- Air being flushed out from tubing while the balloon is being filled
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- Eliminates air bubbles
- Filter bacteria
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For the Healthcare Team |
For the Patient |
- Complete infusion system
- Accurate medication delivery
- Positive pressure eliminates gravity flow problem. No IV pole required
- Minimal training time for use of device
- Supplied ready-to-use
- Adaptable to a variety of therapies
- No capital outlay (vs. electronic pumps)
- Eliminates maintenance, servicing and tracking of equipment
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- Ambulatory – device is completely portable and can be carried in a pouch.
- Requires little to no management or intervention by the patient (or caregiver).
- Light, compact, silent operation
- No part to assemble (home care)
- No control to set or battery to recharge (home care)
- Reduces costly hospitalization charges (early hospital discharge to recuperate at home)
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Principle of Operation
- Both AccuFlo & AccuFlux infusion pump has an elastomeric balloon-like reservoir for containing drug or fluid intended for infusion.
- The silicone-made balloon exerts mechanical pressure, thereby forcing the drug or fluid through the tubing.
- Fluid will flow at a pre-determined flow rate which is controlled by the lumen size & length of the micro-bore tube (the section connecting to the micron filter) and /or glass orifice (for pump with very slow flow rate such as < 2.0ml / hour).
- The device is designed to deliver the nominal volume +/- 10% of the nominal delivery time. Flow rate may vary with changes in temperature & viscosity of drugs.
- Because the device does not depend on gravity, it can be carried along with the patient.
Procedures / Method for Safe Use
Filling the Device
- Close the clamp on the extension tubing.
- Flip open the top cap.
- The pump can be filled with a syringe (preferably a Luer-Lock type to be more secured). Use the syringe to aspirate drugs / fluid, remove all air; attach the syringe to the fill port, push the plunger to dispense the drugs into the balloon reservoir. Multiple filling will be required if a small volume syringe is used.
- Remove syringe from the fill port. Screw the cap (provided in unitized packing) on to the fill port.
- Flip the top cap closed.
- Label with appropriate pharmaceutical and patient information.
Priming the Administration Tubing
- Remove the cap from the end of the tubing set.
- Open the tubing clamp. Fluid will begin to flow to fill the entire administration tube and to expel all air.
- Close the clamp on the administration set after priming.
Starting the Infusion
- Infusion should preferably be started 0-8 hours after filling. Prolonged storage may result in longer delivery time (vs. nominal time)
- Verify the clamp is closed
- Connect the tubing to the intravenous or epidural catheter. (Use aseptic technique to clean patient access site as directed by hospital / healthcare provider).
- Open the clamp to start infusion.
Drug Mixing and Concentration
- Refer to drug manufacturer’s package insert for drug reconstitution / dilution and storage procedures.
- Calculate fill volume by multiplying the desired infusion time (hours) by the nominal flow rate (ml/hr) and adding the residual volume.
- Alteration of dosage is achieved by adjusting the drug concentration since the flow rate is predetermined and fixed.
Precautions
- Do not use if package is damaged or opened.
- For single use only. Discard after use in accordance to local regulations.
- Do not exert pressure or play with filled device. Take caution when used with immobilized patients to avoid device being slept on, which may lead to rupture or breakage.
- Do not use with pressure infusion device.
- Store at cool, dry place; avoid direct sunlight.
- Infusion should be started within 8 hours after filling. Storage of the filled device beyond 8 hours may result in a longer delivery time.
- If the filled device needs to be stored in refrigerator or freezer, allow it to warm to room temperature before infusion.
Contra-Indications
- Infusion of blood or blood components.
- Infusion of insulin.
- Infusion of lipid or fat emulsions.
- Infusion of critical or life-supporting medications whose stoppage, interruption, over-delivery or under-delivery would likely cause serious injury or death.
- Infusion of any solution that is not compatible with the materials of the device. (refer to “chemical stability” section)
Key Functional Elements / Materials
Parts |
Material |
Intended Use |
Valve cap |
PE |
To protect the filling port from contamination. |
One-way injection valve (fill port) |
PE |
For filling of fluid to the silicone sleeve balloon reservoir. The valve to be activated by a syringe. |
Rubber ring |
NR |
To tighten the PVC outer sleeve onto the core. |
Sliding core |
ABS |
For mounting the silicone sleeve on, and to channel the fluid to / from the balloon reservoir.
The sliding core helps to reduce filling pressure, and also reduces initial “spike” in flow rate compared to other elastomeric pumps. |
Silicone sleeve |
Silicone |
To act as a balloon reservoir for the medication and to exert pressure to generate flow. |
Outer sleeve |
PVC |
An outer layer to protect the silicone balloon. |
Extension tube |
PVC (DEHP free) |
To channel fluid / medication. |
Clamp |
PP |
To stop the flow if necessary. |
Filter |
Hydrophobic
Membrane |
To eliminate air bubbles and to filter bacteria. |
Micro-bore tube |
Rigid PVC |
To channel fluid and to control the drop size & flow rate |
Note: all component parts are Latex-Free and biocompatible
Chemical Stability
The pumps are indicated for continuous infusion of medications for antibiotic therapy, chemotherapy, and pain management. AccuFlo pump has been tested by independent laboratory in France (report on file with Medpro) with respect to its chemical stability with various types of drugs, which are listed below:
AMIKACIN GANCICLOVIR
CEFOTAXIME GENTAMYCIN
CEFTAZIDIME IMIPENEM
CISPLATIN PIPERACILLIN
DEFEROXAMINE RIFAMPIN
DOXORUBICIN TOBRAMYCIN
FOLINIC ACID VANCOMYCIN
The laboratory test concluded that after fourteen days of conservation in refrigerator (2 deg C to 8 deg C) and after 24 hours at 25 deg C, there is no significant evolution to the physiochemical characteristics of the drugs; and the drugs remain conform to their proposed specifications.
Note: the pharmacist or medical personnel dispensing the drug is responsible for ensuring proper preparation using validated aseptic techniques to prevent microbiological contamination.
Manufacturing Qualification
- Manufactured under ISO13485, ISO9001 Certified Quality System.
- Conforms to following standard:
- European Community (CE Mark) Class 2B Medical Device Directive (MDD)
- Product certified by RWTUV NB NO. 0044 in accordance to 93/42/EEC Annex 11
- IEC 60601-2-24 particular requirement for the safety of infusion pumps and controllers
Sterility Method
- The whole unit of AccuFlo and AccuFlux is sterile; using ETO (Ethylene Oxide).
- Expiry date of the device is 3 years from manufactured date.
Technical Information
Nominal capacity |
50 – 120 ml |
150 – 240 ml |
250 – 275 ml |
Maximum capacity |
120 ml |
240 ml |
275 ml |
Total residual volume
(tubing + reservoir) |
< 2.5 ml |
< 3.5 ml |
< 5.0 ml |
Weight including packaging |
61 grams |
71 gram |
95 grams |
Size of reservoir (length x diameter) |
80 mm x 20 mm |
100 mm x 20 mm |
120 mm x 26 mm |
Length of infusion line |
1450 mm +/- 50 mm |
Mean infusion pressure |
220 mmHg – 350 mmHg |
Maximum filling pressure |
< 780 mmHg |
Infusion duration accuracy
(normal saline at 32 deg C) |
+/- 10% of the nominal volume over nominal time |
Manual flow stop |
Clamp |
Storage conditions |
Temperature < 38 deg C, away from direct sunlight |
Effect of partial filling on flow rate |
<Nominal volume à slower flow rate
>Nominal volume à faster flow rate |
Effect of temperature on flow rate |
Increase in temperature à increase flow rate
Decrease in temperature à decrease flow rate
Change in temperature by 1 deg C affects flow rate by 2% |
Effect of viscosity on flow rate |
10% slower flow rate with 5% Dextrose (D5W) |
Effect of height between pump and infusion site |
Every 10 cm increase in height will approximately increase flow rate by 2-3% |
Device Packaging
- 1 piece per pouch (with Tyvek paper & clear plastic)
- 10 pieces per box
- Box dimension:
- AccuFlo – 24.0 x 26.0 x 13.0cm
- AccuFlux – 36.5 x 40.0 x 10.0cm
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