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Neuroscience Cannulas
For in vivo investigation of rodents
Cannula assembly: fixing screw, internal cannula with attached tubing, and guide cannula.
Internal cannula secured with fixing screw.
Internal or Dummy Cannula. Choices include 22, 24 and 26 gauge. Length–Guide Cannulas can be ordered in a range of lengths from 1.0–9.9mm. Length can be specified to 0.1mm, with a tolerance of ±0.07mm. For example, a GC24-60 is a 24ga. cannula that is 6.0mm long. For other cannulas, the length is determined by the desired projection length and the guide cannula length. The projection can extend beyond the tip of the Guide Cannula up to 1.0mm. DUMC Length = GC Length + Projection INC Length = GC Length + Projection For example, for a Dummy Cannula flush with the end of a 26ga Guide Cannula that is 6.0mm long, order a DUMC26-60. For an inernal cannula that projects 0.5mm beyond the 6.0mm Guide Cannula (6.5mm), order an INC26-65.
Ordering
ANIMAL SURGERY & SUPPORT
Exceptional Quality Best Prices Rapid Order Response
This cannula system for neuroscience study and pre-clinical research includes an entire range of cannula options. The three primary components include the Guide Cannula, the Internal Cannula and the Dummy Cannula (cap) ● WPI cannulas are beveled inside and out and then polished to remove any burrs and ensure that the inside diameter is perfectly cylindrical. This limits undesired trauma to tissue and ensures smooth operation. ● WPI offers exceptional quality at the best prices. ● Quantities of each item are kept in stock so you can order as needed.
Order the Guide Cannulas based on the gauge and length from the base and the Internal or Dummy Cannulas based on the length of the Guide Cannula and the projection from the Guide Cannula tip.
Understanding Part Numbers
Cannula Type
GC22-37
Cannula Type Gauge of Guide Cannula Length of Cannula or Projection
GC–Guide Cannula INC–Internal Cannula DUMC–Dummy Cannula Gauge–Choose the gauge of the Guide Cannula that will be used, even if you are specifying an
Guide Cannulas
Gauge 22 24 26
OD 0.64 0.56 0.48
ID 0.46 0.40 0.32
GC Length
DUMC Length* Projection
INC Length** Projection Internal Cannula
Guide Cannula
Dummy Cannula
The Guide Cannula is a surgical grade, stainless steel tube that is implanted into a rodent's skull and cemented into place using dental cement and screws. It guides the Internal Cannula to the specific injection site.
* DUMC Length=GC Lenth + Projection. If the cap is screwed on too tightly, the projection will be longer than expected. ** INC Length=GC Lenth + Projection. Internal cannula mounts flush and does not screw into place.
Internal Cannula
0.7mm
Gauge OD 22 0.41 24 0.36 26 0.30
ID 0.26 0.21 0.16
The Internal Cannula is inserted into the Guide Cannula to sample or inject fluid.
Cannulas GC22-X INC22-X DUMC22-X GC24-X INC24-X GC26-X INC26-X DUMC26-X
Guide Cannula, 22 Gauge, X .0mm Internal Cannula, 22 Gauge, X .0mm Dummy Cap Cannula, 22 Gauge, X .0mm Guide Cannula, 24 Gauge, X .0mm Internal Cannula, 24 Gauge, X .0mm Guide Cannula, 26 Gauge, X .0mm Internal Cannula, 26 Gauge, X .0mm Dummy Cap Cannula, 26 Gauge, X .0mm
Qty 1-9 Qty 10-19
Qty 20-49
Qty 50-99
Qty 100+
Dummy Cannula
The Dummy Cannula has a stainless steel wire core, and it is placed in the Guide Cannula when the Internal Cannula is removed. It seals the opening and prevents tissue from entering the bottom of the Guide Cannula. The Dummy Cannula is threaded to securely tighten it so that the animal will not unscrew it while grooming. 50
Flexible PE Tubing 504278 0 .25mm ID, 0 .5mm OD, 1m long 504279 0 .42mm ID, 0 .85mm OD, 1m long 504280 0 .6 mm ID, 1 .1mm OD, 1m long
Qty 1-9 Qty 10-19
Qty 20-49
Qty 50-99
Qty 100+
Flexible PE tubing are recommended to connect to Internal Cannula (INC) only, NOT Guide Cannula (GC) or Dummy Cap (DUMC). 504278 matches INC26-XX 504279 matches INC24-XX 504280 matches INC22-XX Qty 20-49 Qty 50-99 Qty 100+ Misc. Accessories 504281 Fixing Screw for connection of INC & GC 504282 Instant Cyanoacrylate Adhesive, 3g 504283 Instant Cyanoacrylate Adhesive, 20g World Precision Instruments Qty 1-9 Qty 10-19
UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com
www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com
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