Premium Catheters;Intisil (silicone)

The physiology involved in thrombogenicity of long-term catheters
involves many factors. A principal factor involves the interaction
between the catheter tip and the intimal lining or endothelium of
the vessel. The rounded tip of the IntiSil catheter is less traumatic to the intima.
The conventional square-cut and beveled catheters, on the other hand, actually
have pronounced edges which traumatize the vessel wall, thus hastening the
host's thrombogenic response.

 

IntiSil Benefits

  

Ordering Information

 The rounded tip (Intisil) is available

on catheter French sizes 3-9.

Cath.No 

 French Size Gauge
 * Reduced trauma to vessel endothelium

Square corners may traumatize the intima wall. Corners are removed and rounded.

  CNC - 3IS  3  20
 * Reduced chance of thrombus formation  CNC - 4IS  4  18
 * Minimized infections  CNC - 5IS  5  16
 * Increase ease of insertion  CNC - 7IS  7  13
 * Increase of long-term tolerance  CNC - 9IS  9  11
  to specify the use of an IntiSil catheter when ordering a vascular access port or external catheter, please add an "IS" after the catheter french.
 

Studies have shown .......
That rounded catheter tips are less thrombogenic than "square-cut" and
"beveled" catheter tips.
The rounded tip is less traumatic to the intimal lining of blood vessels,
and is thus slower to evoke a thrombogenic response ..........
during implantation and in situ.
The superiority of the rounded tip was first described by Dr. Melvin B. Dennis Jr. D.V.M.
for large animals and was later proven
to be true in rats by Dr. Laura O'Farrel D.V.M.
 

 Features

 * Biocompatible silicone
 * Atraumatic rounded tip
 * Catheter depth markings
 * Can be autoclaved
 * Can be ETO gas sterilized
 * Available in a variety of French sizes
 * Available with movable or fixed retention beads
 * A variety of modifications available on request

 ROUND MOLDED TIP

Research presented at the 1994 AALAS Meeting by Dr. Laura O'Farrel (then at Hershey Medical Center) concluded that in rats, rounded tip silicone catheters are superior to square cut and bevel cut silicone catheters.

"Necropsy findings revealed that fistula with sharp (square cut) intravascular tips traumatized the vessel endothelium producing thrombosis in 7 out of 10 cases. This compared with only 1 case of thrombosis in the 31 rounded this catheters."

 " ... comparison of sharp (square tip) and rounded tip catheters revealed the superiority of the latter."

Dennis M., Cole J., Jensen W., Scibner B. " Long-term blood access by catheters implanted into arteriovascular fistulas of sheep." Laboratory Animal Science, 34(4), 388-92,1984.

"... some tubings had been cut with a scalpel and ... the cut edge might have abraded the endothelium and induced thrombus formation...".

Hecker J. "Thrombogenicity of tips of umbilical catheters." Pediatrics, 67(4), 467-71, 1981.

 

 SQUARE CUT TIP

 

References
Dennis M, Cole J., Jensen W., Scribner B., Long-term blood access by catheters implanted into arteriovenous fistulas of sheep.
" Laboratory Animal Science, 34 (4) 388-92, 94."
Hecker J., " Thrombogenocity of tips of umbilical catheters. Pediatrics, 67 (4) 467-71, 1981."
O'Farrel, L., " Optimal central venous catheter design for long-term-blood sampling." -
A thesis in Laboratory animal medicine. May, 1995. Hershey Medical Center."

 

WE CAN CUSTOMIZE VIRTUALLY ALL PRODUCTS TO YOUR SPECIFICATIONS.

 

 

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