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GRAFT DEPLOYMENT ASSIST TOOL

  • US 20120010692A1
  • Filed: 07/07/2010
  • Published: 01/12/2012
  • Est. Priority Date: 07/07/2010
  • Status: Active Grant
First Claim
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1. A system for delivering and deploying a medical device comprising:

  • a housing comprising a first seal; and

    a sleeve slideably coupled to a catheter and comprising a second seal sealingly engaging the catheter extending through the housing, the sleeve being movable between a first position in which the sleeve is disposed outside of the housing and the first seal is sealingly engaged with an outer surface of the catheter, and a second position in which at least a portion of the sleeve is disposed within the housing between an inner surface of the housing and the outer surface of the catheter, wherein, in the second position, the first seal is sealingly engaged with an outer surface of the sleeve and the second seal is sealingly engaged with the outer surface of the catheter; and

    wherein, when the sleeve is in the first position the first seal exerts a first sealing force on the catheter effecting a first frictional resistance between the housing and the catheter, and when the sleeve is in the second position the second seal of the sleeve exerts a second sealing force on the catheter effecting a second frictional resistance between the housing and the catheter, the second frictional resistance being less than the first frictional resistance.

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