January 11, 2005
TERUMO PTCA Catheter OTW-1 (pet name "Ryujin OTW")
having
a Catheter Tip with the Smallest Diameter in the World
TERUMO CORPORATION (headquarters: Shibuya-ku, Tokyo) launched
the Terumo PTCA catheter OTW-1 (pet name "Ryujin OTW") on January
11, 2005. This new catheter is used in percutaneous transluminal coronary
angioplasty (PTCA), a therapy for people with angina and myocardial infarction,
and is sold to medical institutions throughout the country at a suggested
retail price (an insurance redemption price) of 182,000 yen per unit.
The sales target for the first year after the launch is set at 4,000 units.
PTCA is a therapy utilizing a balloon fitted to the tip of a tube about
1 mm in diameter, which is called a PTCA catheter. This balloon is inflated
in the lesion to dilate a blood vessel that has been narrowed or clogged
due to coronary artery diseases, such as angina or myocardial infarction.
This new Ryujin OTW has a catheter tip 0.42 mm in diameter, the smallest
diameter* of this type in the world (*based on a survey conducted by Terumo).
This PTCA catheter ensures that the tip has improved penetrability when
the tip passes through narrow, winding, and twisting blood vessels or
when it breaks through the lesions where the blood vessels are completely
clogged.
Ryujin OTW has the shaft structure of an over-the-wire type, in which
a guide wire that leads the catheter starts from a position close at hand
and passes through the catheter all the way to the tip. The guide wire
used in this type of shaft can be easily replaced and is highly operable.
(Tip of the catheter before inflation of the balloon)
Product name: TERUMO PTCA Catheter OTW-1
Medical Device Approval No.21600BZZ00035
Product Features
- The catheter tip with the smallest diameter in the world*
The catheter tip has been designed to give the smallest diameter
in the world (*based on a survey conducted by Terumo). Therefore,
the tip has high penetrability for the lesions where the inside of
blood vessels is hard and narrowed.
- Highly penetrable tip
The tip is made of a soft material so that the tip can go right
through bended blood vessels and hard lesions.
- Hydrophilic polymer coating on the spearhead portion of the catheter
A longish portion of the catheter tip is coated with a hydrophilic
polymer. The coated tip has an increased lubricating property once
the tip comes in contact with blood. Thus, the polymer coating ensures
smooth operation of the catheter that runs through blood vessels,
and improves the ability of the tip to arrive at the target lesion
correctly.
For your reference:
Structurally, there are two types of PTCA catheters. One
or the other can be used, depending on the cases in which
a catheter is necessary.
- Over-the-wire type
The guide wire starts from a position close at hand and
passes through the catheter all the way to the tip. Since
guide wire replacement is easy, this type can be used in
those cases where it is necessary to replace the guide wire.
- Rapid-exchange type
The guide wire passes through the catheter only in the
tip portion. Easy replacement of the catheter ensures that
smooth therapeutic operations can be performed.
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Note: The sales predictions and future prospects appearing
in this release have been assessed by Terumo on the basis of the information
available as of now. These predictions and prospects could involve potential
risks and uncertainty. Therefore, it is possible that actual results may
differ from these predictions and prospects due to the changes in various
factors. You should be aware that such information as the suggested retail
price is valid at the time of issuance of the release and that the price
is subject to change in the future.
