DELIVERY APPARATUS FOR A RETRACTABLE SELF EXPANDING NEUROVASCULAR STENT
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United States of America Patent
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Issued Date -
Jul 22, 2010
app pub date -
Jan 13, 2010
filing date -
Jan 19, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a delivery apparatus for delivering a self-expanding neurovascular stent that allows for smooth movement of the apparatus along a typically tortuous vascular path, ease of stent deployment, and ease of stent retractability being pushed and pulled through the delivery apparatus. The apparatus includes an outer catheter, and an inner shaft located coaxially within the outer catheter. The stent is mounted on the distal section of the inner shaft and preloaded within the outer catheter distal region. The inner shaft includes at least one stent blocking member disposed in the distal section. The self-expanding stent has proximal, middle and distal ends and is comprised of a plurality of closed cells. The self-expanding stent includes locking members which interlock with the blocking member(s) disposed on the inner shaft so as to lock the stent onto the inner shaft within the outer catheter, and to enable the stent retractable together with the inner shaft being out of and retrieved back to the outer catheter. More specially, the invention may be used in the treatment of blood vessel blockage and aneurysms which occur in the brain.
First Claim
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- 15 United States
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Patent Owner(s)
Patent Owner | Address | |
---|---|---|
PYZ SCIENTIFIC (SHANGHAI) CO LTD | 238 EDISON ROAD SUITE #301 ZHANGJIANG HIGH-TECH PARK PUDONG SHANGHAI 201203 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Zhang, Yi | San Diego, US | 1567 | 13461 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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