Living Systems Instrumentation designs, develops, and manufactures instruments for in vitro research studies of pressurized, perfused, cannulated blood vessels. These include vessel chambers and electro-mechanical apparatus for the measurement and control of pressure, flow rate and vessel dimensions. Living Systems also offers an array of laboratory equipment that are essential to any successful research project!

Cannulae

GCP_GlassCannulaPack_web_8752v1-9.jpgOur glass cannula packs contain one dozen high-quality hand-made pipettes. Tips are ground and polished to have a distinct beveled edge, which facilitates vessel cannulation. There are different packs with different specifications for each size range offered. The Glass Cannula Packs can come various tip diameters (listed in specifications).

Specifications
Material Borosilicate Glass
Tubing Size 1.2 mm OD, 0.68 mm ID (unpulled tubing)
Cannula Length 30 to 40 mm from end to tip
Tip diameter 100-125 µm; 125 to 150 µm; 150 to 175 µm; 175 to 200 µm; 300 to 325 µm; 40 to 60 µm; 50 to 75 µm; 75 to 100 µm; 1mm OD; Custom sizes 

Glass Cannula Pack, Custom Size, 1 mm OD, 12 pk

Our standard cannula outer diameter is 1.2 mm, sized to fit our cannula holders. For custom applications, many users employ glass cannulae having an outer diameter of 1 mm. We are happy to make cannula packs for you to suit your custom application. Our custom 1 mm OD cannula packs include one dozen finely made cannulae, sized to your specifications. The closely matched pulled tips featured in our custom packs are also well suited to studies involving intraluminal flow.  Just let us know what size vessels you will be working with, and we would be happy to make cannulae to your specifications. We can also make the cannulae longer (up to 70 mm) than our standard 30-40 mm length if you wish.

Glass Cannula Pack, Custom Size, 12 pk

If you are doing studies on pressurized blood vessels in the presence of intraluminal flow, it is essential to have cannulae that are closely matched in size.  Just let us know what size vessels you will be working with, and we would be happy to make cannulae to your specifications.  We can also make the cannulae longer (up to 70 mm) than our standard 30-40 mm length if you wish.

Glass Cannula Scoring Tool

GCST_GlassCannulaScoringTool_web_012v2.jpgThis glass cannula scoring tool is a useful accessory to have on hand for cutting your cannulae to the appropriate length. The tool is shaped like a pencil, for easy ergonomic use. The tool has a diamond tip point that can be replaced when it is worn out. You use the tool by gently applying pressure to a piece of glass tubing at the point where you wish to cut off excess material. Etch the tubing at this point by circumscribing a line around the diameter of the cannula. Simply snap off the excess tubing. The scoring mark created by the tool will result in a clean sharp break point. For best performance, we suggest passing the cut cannula end into a flame briefly to fire polish the edge. This will result in a smooth surface on the end of your cannula and will minimize the introduction of plastic tubing fragments or glass shards that can clog the inside of an unpolished cannula.

Glass Cannulae Tubing, 22 pc 6″ tubing

GT_GlassCAnnulaeTubing_web_8484v1.jpgThis is a pack of raw tube stock that can be used for pulling your own cannulae.  This is the same high-quality borosilicate glass that we use to construct the cannulae in our glass cannulae packs.  The package contains 22 pieces of tubing.

Nylon Thread for Tying Blood Vessels

THR-G_NylonThread_forTyingBloodVessels_web_002v1.jpgThread for tying off vessels, 6” length

This nylon thread has been specially selected for its suitability in tying off blood vessels to glass cannulae. This material is a multi-filament twisted thread. To use, simply tease away a small length of an individual filament. Tie an overhand knot in this small filament, and secure the vessel. Detailed tying instructions can be found in our user manuals for our vessel chambers.

Specifications
Thread Diameter ~500 µm
Monofilament Diameter ~30 µm