Yellow Total Dose: A low dead space 30G, 13mm (1/2 inch) detachable hypodermic needle.

A short fine needle for painless injection under the skin, that is also ideal for intravenous injection into small veins, particularly of the hands and feet.

Quantity	Price (exc VAT)	VAT	Price (inc VAT)
10	13p each	20%	16p each
100	£10.00	20%	£12.00
10000	5p each	20%	6p each

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This 30G, 13mm (1/2 inch) detachable hypodermic needle is also suitable for veterinary use.
Originally developed to help reduce the spread of HIV and other blood borne viruses by reducing dead space in syringes for detachable needles — low dead space needles have significantly less dead space than both standard detachable needle and syringe combinations, and standard needle / reduced dead space syringe combinations.


Total Dose Yellow 30G 13mm (1/2 inch) needles were designed for the Unifix range and total dose compatible syringes. They also fit some other 2ml (and larger) syringes for detachable needles.

Please note: Total Dose needles do NOT fit syringes that have a dead space reducing spike on the plunger.

To order, just type how many you need into the quantity box above.

What is the dead space volume?
We had the dead space in this product independently assessed at the Research Institute for Industry, Southampton University. Conducted by Dr. Xize Niu and his team, who are experts in microfluidics. The assessment used 2 different highly accurate measuring techniques to determine that the Total Dose needle design reduces the dead space available for blood residue following injection from around 91.6 µL (in a 'standard' Luer Slip needle and 2ml syringe combination) to just 26µL.

Furthermore, high speed imaging of a simulated injection sequence has demonstrated that liquid and air become trapped in the needle hub at the top (farthest from the syringe), and that when blood is subsequently drawn into the needle and syringe, contamination of this void is prevented by this existing water and air, reducing the amount of blood contamination in this area to between zero and 20 µL.

Why is dead space important?
A standard detachable needle fixed to a used 2ml syringe has around 90 microlitres of blood remaining in the dead space between the plunger and the tip of the needle. The Total Dose needle reduces the dead space by having a thin plastic tube that fits down into the tip of the syringe, filling this void, and preventing the accumulation of blood.

This significantly reduces:

• The amount of virus that could be left in the used syringe, and
  

• Survival time of any virus left in the syringe.
  

The dead space in syringes is a risk factor that has only recently come to light, but we know that the risk of HIV infection is related to the dose of virus that is injected - and the work of Bill Zule, an academic from the USA, has concluded that the reduction in dead space offered by insulin type syringes (such as the Unisharp fixed) and total dose low dead space needles may reduce the volume of blood to less than that which is required to transmit HIV infection.

The same may not be true of hepatitis C for a syringe shared immediately after use. However, we know that HCV survival in syringes is related to the volume of blood and so it is likely that the Total Dose needles have significant potential to reduce hepatitis C transmission as well.

To read the review of the literature, and the latest thinking on the importance of low dead space syringes, read the article by William Zule and colleagues in the International Journal of Drug Policy, by clicking here.

For more on the issues surrounding the use of low dead space syringes and needles to reduce blood borne virus spread, go to the low dead space syringes facebook page (which is run by Bill Zule), and click 'like' to get occasional updates in your timeline.

Product details
Gauge	30G
Needle Length (mm)	13mm
Needle Length (inch)	½ inch
Hub Colour	yellow
Type	detachable needle
Manufacturer	exchange supplies
Brand	total dose
Product Code	TY13
Also known as

Exchange Supplies Compact Sharps Bin

A162

Sterile Vit C sachets

V214

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UY

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TO16

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Unifix 3ml luer lock syringe

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