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Delivery device

  • US 9,149,379 B2
  • Filed: 07/16/2007
  • Issued: 10/06/2015
  • Est. Priority Date: 07/16/2007
  • Status: Active Grant
First Claim
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1. An apparatus for delivering an intraluminal device, comprising:

  • a gear and pulley mechanism comprising a first gear set and a second gear set;

    a drive pulley adapted to be alternatively mechanically coupled to the first gear set and the second gear set; and

    a sheath disposed over an inner elongate member, the sheath being in mechanical communication with the drive pulley and adapted to retract in a proximal direction and resheath in a distal direction,wherein the drive pulley is configured to be mechanically coupled to the second gear set to move the sheath in a proximal direction relative to the inner elongate member to enable at least partial deployment of the intraluminal device,wherein the drive pulley is configured to be mechanically coupled to the first gear set to move the sheath in the distal direction relative to the inner elongate member to enable resheathing of a partially deployed intraluminal device, andfurther comprising a trigger, the trigger comprising a generally straight rack, the rack being translatable and adapted to engage with a main drive gear, the main drive gear being affixed to a drive shaft, wherein the first gear set comprises a first drive gear and the second gear set comprises a second drive gear, the first drive gear and the second drive gear each comprising one-directional roller clutch bearings, the drive shaft extending through the roller clutch bearings and mechanically coupled thereto, wherein the first drive gear engages a first idle gear, and the first idle gear engages a first pulley gear, wherein the second drive gear engages a second pulley gear, the first pulley gear and the second pulley gear being adapted to rotate in opposite directions in response to translation of the rack, the drive pulley being adapted to be alternatively mechanically coupled to the first pulley gear and the second pulley gear, andfurther wherein a pulley shaft extends through each of the first pulley gear, the second pulley gear, and the drive pulley, the first pulley gear and the second pulley gear each being translatable relative to the drive pulley along an axis of the pulley shaft, wherein a first directional switch is aligned with the axis of the pulley shaft and coupled to the first pulley gear, the first directional switch being adapted to simultaneously move the first pulley gear into engagement with the drive pulley and the second pulley gear out of engagement with the drive pulley, and wherein a second directional switch is aligned with the axis of the pulley shaft and coupled to the second pulley gear, the second directional switch being adapted to simultaneously move the second pulley gear into engagement with the drive pulley and the first pulley gear out of engagement with the drive pulley.

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