Smiths Graseby 3200, Technical & Service Manual

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Smiths Medical International Ltd.
3200 Service Manual Issue 5 (August 2004)
1 — 6
Development of 3000 series
Brief history of Graseby bedside syringe pumps
MS2000
The first Graseby bedside syringe pump was the MS2000 . This was a basic syringe pump capable of infusions within
the range of 0.1 ml/hr to 99.9 ml/hr. It had a totaliser, a limited infusion capability, a built-in pole clamp and was
designed for vertical operation. The MS2000 was powered by an AC supply or its internal DC batteries. This pump is
no longer manufactured.
PCAS
The PCAS pump was developed from the MS2000 to satisfy the growing interest in Patient Controlled Analgesia
(PCA). The PCAS was very similar to the MS2000 in both appearance and mechanical design, but used a different
microprocessor with the capability of running the extra features required for PCA. It was eventually replaced by the
3300 pump. A printer port was also incorporated. This pump is no longer manufactured.
3000
The first pump in the 3000 Series of syringe pumps was the 3000 . This pump was a low-cost alternative to the
MS2000 and satisfied the need for a horizontally mounted pump. The 3000 did not have an internal battery supply.
This pump is no longer manufactured.
3100
The 3100 syringe pump was developed from the 3000. It is very similar mechanically but with improved electronics.
Dual processors were incorporated, with a vacuum fluorescent text display and internal batteries. The maximum
infusion rate was increased to 199.9 ml/hr and different syringe sizes were able to be used (automatically sensed).
Extra software features, such as the intelligent ‘near end’ alarm, were also incorporated.
3300
The next bedside syringe pump to be developed was the 3300 . This was similar in mechanical and electronic design
to the 3100 but the features were specifically for the now more mature PCA market. A lockable syringe cover was
added for security against drug theft; a four line LC display was added and internal history recording (1500 events)
with printout was also added. With the growth in PCA knowledge in the medical community, many more software
features were incorporated into the 3300 to aid PCA administration.
3400
The 3400 was developed (again from the 3100) to satisfy the need for a high speed infusion pump for intravenous
anaesthesia. Advances in micro-controller technology allowed the use of a single device to control all the pumps
features. The maximum infusion rate was raised to 1200.0 ml/hr and bolusing facilities were also added. An infusion
rate calculation facility was later added to the software.
A larger liquid crystal display was used on the 3400 with the ability to display text in different sizes, also ‘soft-keys’
were used to make the user interface simpler. The range of syringe sizes that could be used was also increased.
For more advanced applications the pump could be controlled by a computer.
3200
The 3200 was developed as a general purpose syringe pump. Wet-side pressure sensing, intermittent infusion
capabilities, and computer interfacing were added. The wet-side occlusion pressure monitoring made the pump
particularly suitable for use in intensive-care baby units. A large text vacuum fluorescent display was added, and the
increased syringe size range of the 3400 remained.
A DC input supply (10 V to 28 V DC) version of the 3200 is also manufactured by Smiths Medical. This variant is
primarily intended for use in an aviation environment, but may be utilised in an environment where the required DC
voltage exists.
3500
There are two versions of the 3500, as follows:
1. A Manually Controlled Infusion (MCI)
only pump.
2. An MCI plus a Target Controlled Infusion (TCI) pump.
The 3500 was developed from the 3400 and retains all the 3400 facilities.
The ‘MCI
plus TCI’ pump carries out a TCI using the Diprivan drug. This version of the 3500 incorporates a Diprifusor
module manufactured by Zeneca Pharmaceuticals. A new main circuit board and new software allows the 3500 to
interface with the Diprifusor module. A 3500 non-TCI pump can be converted to become a 3500 plus TCI pump.
3150
The 3150 is very similar to the 3200 general purpose pump. The main difference being that the In-line (wet-side) pressure
sensing system in
not available on the 3150, i.e. the pressure transducer is not fitted.