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Sheaths reducing recoil and loss of retention for polymer scaffolds crimped to balloons

  • US 9,579,181 B2
  • Filed: 05/19/2015
  • Issued: 02/28/2017
  • Est. Priority Date: 12/07/2012
  • Status: Expired due to Fees
First Claim
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1. A method for assembling a medical device, comprising:

  • using a catheter including a shaft and a balloon having distal and proximal ends;

    crimping a polymer scaffold to the balloon to produce a crimped scaffold;

    placing a temporary sheath over the crimped scaffold, the temporary sheath including a flared first end having a continuously increasing diameter, wherein the temporary sheath has a constant inner diameter extending from the flared first end to a second end thereof, and when placed over the crimped scaffold the flared first end is proximal the balloon proximal end and the second end is distal the balloon distal end;

    inspecting the crimped scaffold and/or balloon within the temporary sheath;

    removing the temporary sheath from the crimped scaffold; and

    placing a final sheath over the crimped scaffold;

    wherein the crimped scaffold is configured for being placed within a body only after the final sheath is removed from the crimped scaffold.

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