Catheters
	Tail Vein Catheter
	Stereotaxic Brain Lesioning Catheter
	Rat Thoracic Jugular Vein Catheter
	Rat Thoracic Carotid Artery Catheter
	Rat Femoral Vein Catheter
	Rat Femoral Artery Catheter
	Mouse Thoracic Jugular Vein Catheter
	Mouse Thoracic Carotid Artery Catheter
	Mouse Femoral Artery/Femoral Vein Catheter
	Intrathecal Catheter
	32g Mouse Catheter System
	Double Lumen Catheters
	Small Bladder Catheter
	Molecular Imaging Catheter
	Bile Duct/Duodenal Catheter
	Custom Catheters
	Tubing

Miscellaneous

	0.003 Guide Wire
	Stopcocks
	Access Ports
	Stainless Steel Plug
	Stainless Steel Blunt Tip Needle w/ plastic hub
	Stainless Steel Connectors
	Wound Closure Systems
	Alzet Osmotic Implantable Pumps

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Braintree Scientific's Vascular Catheters for Rats

Vascular catheters, for use in rats, have stood the test of time because they are affordable and
they work!  These catheters, modified from the original design of Tinsley (1983), are fabricated from Braintree Scientific’s medical grade polyethylene (PE) tubing and Braintree Scientific’s silicone tubing (RenaSil™)  and sealed with a stainless steel plug.  When filled with a viscous catheter lock solution they maintain a very high rate of patency* for several weeks.  

*Patency, especially for blood sampling, is highly dependent on the location of the intravascular tip.

Both the thoracic and femoral rat models have the following features:  

Externalized polyethylene (PE) tubing catheter port: Flared for easy access with a blunted
23g hypodermic needle for sampling or infusion.  Port is sealed with 0.025 “ diameter stainless steel plug when not in use.  Catheter port is designed to exit between the scapulae and to be secured with a single Autoclip® 9 mm stainless steel wound clip. 

Polyethylene (PE) tubing catheter body:  The rigidity of polyethylene (PE) tubing minimizes the incidence of catheter lumen constriction and relaxation, an “eye dropper” effect, which allows blood to enter the intravascular tip. All catheter anchor points allow for suturing around the polyethylene (PE) tubing minimizing the likelihood of suture induced catheter lumen constriction.

RenaSil™  intravascular tip:  RenaSil™ as the intravascular tip for reducing intravascular thrombus formation.

Reduced diameter intravascular tip:  Reducing the inner diameter of the intravascular tip relative to the inner diameter of the port allows for efficient expulsion of blood from the intravascular tip.  The last step following catheter implantation or use should be to advance the stainless steel plug into the port for a few millimeters.  This is sufficient to expel trace amounts of blood from the intravascular tip with a minimum amount of catheter lock solution entering the bloodstream.

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Custom Catheters                          Back 
Custom Catheter Fabrication

Did you know Braintree Scientific offers Custom Catheters?

We offer catheters in your choice of Micro-Renathane® (polyurethane), Renasil™ (silicone), Renapulse™(polyurethane), PE (polyethelene), SubLite and PTFE (polytetrafloroethylene ) tubing.

Send us your design and we'll provide you with a quote within two business days.  We offer quick quoting, quick turnaround time, low minimums, and best of all a low price.  Catheters can have retention beads, perfusion holes, luers - male and female, Dacron felt and rounded tip or square cut end.

Depending on complexity of the design, custom catheters usually take 1-2 weeks.   Just fax us your specifications or call for a "Quick Quote" sheet and we'll fax you results!

Print the “Quick Quote” sheet and fax it to 781-843-7932 to the attention of Ruth and let us make your catheters!

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