 Bone Cement Mixing and Delivery System |
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HiVac™7 is an evolution of piston
- style mixing devices offering significant features and benefits for theatre
staff and surgeons.
These include: |
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1. Simple, easy to use design
HiVac™7 has few components and is straightforward to use. This can simplify the
product training process allowing clinicians to achieve consistent results
2. Clear mixing tube
HiVac™7 features a clear tube allowing the clinician to have an unclouded view
of the cement during mixing. This offers peace of mind to the user as mix
quality can be visually assessed prior to delivery
3. Optimum vacuum of 550mmHg
Research suggests [1] that the optimum vacuum for mixing bone cement is around
550mmHg. If the vacuum applied to cement during mixing is too low then
significant levels of porosity may remain. However if the vacuum level is very high
the final cement may suffer from excessive shrinkage. This can lead to the
formation of micro cracks which, under loading, may open up and lead to fatigue
failure.
In addition, research [2] suggests that excessive cement shrinkage
can lead to the formation of voids at the cement - stem interface.
4. Closed system
Once the cement components have been added HiVac™7 remains a closed system
during the mixing and delivery process. This, coupled with an effective charcoal
filter, ensures that the user is exposed to fume levels significantly lower than COSHH guidelines [3]
5. Coloured mixing rod snap point
The mixing rod has a blue section allowing the user to gain accurate alignment,
ensuring that when required, the rod is easily and reliably snapped.
6. Triple mix option
HiVac™7 comes in a full range of sizes for mixing quantities of cement up to
120g (80g Simplex®*).
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7. Narrow delivery syringe
HiVac™7 has a narrow mixing tube which, in combination with a new gun, provides
the surgeon with precise control over cement extrusion and the potential to
generate increased delivery pressures.
In addition HiVac™7 has an elegant ergonomic design, so that the mixer can
comfortably be used on a trolley or held in the hand. |
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As part of the HiVac™
range this product comes with comprehensive support which includes:
- In-service training
- Train the Trainer programme
- Marketing Support Material
- The Principles of Bone Cement Mixing and Application training
presentation
*Simplex is a registered trademark of the Stryker Corporation
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- Dunne N.J. Orr J.F, Mushipe M.T, Eveleigh, R.J 2002. The relationship
between porosity and fatigue characteristics of bone cement. Biomaterials 24
(2003) 238-245
- Bishop NE, Ferguson S and Tepic S, 1996. Porosity reduction in bone cement
at the cement-stem interface. J Bone Joint Surgery, 78B (3);349-356
- Cary R, Morris L, Cocker J, Groves J and Ogunbiyi A, 1995.
Methylmethacrylate: Criteria Document for an occupational exposure limit. Health
and Safety Executive.
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| Effective, Progressive, Innovative |
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