Apparatus for capturing objects beyond an operative site utilizing a capture device delivered on a medical guide wire

Abstract

An apparatus for removing a solid object from a body canal or vessel includes a coil of wire configured to slidably receive a guide wire and a sack having a mouth and a closed bottom opposite the sack. A resilient frame is connected between the coil of wire and the sack for biasing the mouth of the sack open around the coil of wire. The resilient frame is positionable between a collapsed state where the mouth of the sack is closed against the bias of the resilient frame and a deployed state where the mouth of the sack is biased open by the resilient frame.

1 - 8 . (canceled) 
   
   
       9 . An apparatus for removing a solid object from a body canal or vessel, the apparatus comprising:
 a guide wire;   a resilient frame including a sack having a mouth and a closed bottom opposite the mouth, the resilient frame being positionable between a collapsed state where the mouth of the sack is closed against the bias of the resilient frame and a deployed state where the mouth of the sack is biased open by the resilient frame;   a mounting member configured to slidably receive the guide wire, the resilient frame being attached to the resilient frame;   a containment collar configured to slidably receive the guide wire therethrough and to receive at least part of the resilient frame therein; and   a pull wire connected to the containment collar, wherein in response to relative movement between the guide wire and the pull wire, the resilient frame is positionable between the collapsed state at least partially inside the containment collar and the deployed state outside the containment collar.   
   
   
       10 . The apparatus as set forth in  claim 9 , wherein the guide wire includes a distal stop configured to avoid the slidable passage of the resilient frame thereby. 
   
   
       11 . The apparatus as set forth in  claim 10 , further including a deployment catheter having a lumen configured to slidably receive the guide wire, wherein:
 the deployment catheter has an end configured to abut an end of the mounting member when the resilient frame is received on the guide wire between the deployment catheter and the distal stop.   
   
   
       12 . The apparatus as set forth in  claim 9 , further including a deployment catheter having a lumen configured to slidably receive the guide wire and at least part of the resilient frame therein, wherein in response to relative movement between the guide wire and the deployment catheter, the resilient frame is positionable between the collapsed state at least partially inside the deployment catheter and the deployed state outside the deployment catheter. 
   
   
       13 . The apparatus as set forth in  claim 9 , wherein the mounting member is a coil of wire which includes a lumen for receiving the guide wire. 
   
   
       14 . The apparatus as set forth in  claim 9 , wherein the containment collar and pull wire are connected together by a tubular member which attaches to each of the containment collar and pull wire. 
   
   
       15 . The apparatus as set forth in  claim 9 , wherein the resilient frame has a radiopaque thread wrapped around at least a portion of the frame to increase the radiopacity of the frame. 
   
   
       16 . The apparatus as set forth in  claim 9 , wherein a portion of the pull wire has a coiled section which wraps around the guide wire. 
   
   
       17 . The apparatus as set forth in  claim 16 , further including a guide catheter through which the apparatus is advanced and wherein the coiled section of the pull wire is disposed on the guide wire a sufficient distance away from the resilient frame to allow the coiled section to remain within the guide catheter when the frame is deployed in the body canal or vessel. 
   
   
       18 . The apparatus as set forth in  claim 14 , wherein a portion of the pull wire has a coiled section which wraps around the guide wire and the tubular member encapsulates the coiled section of pull wire. 
   
   
       19 . The apparatus as set forth in  claim 9 , wherein the resilient frame has a single arm having a first end connected to the guide wire and a second end coupled to an expandable loop, the mouth of the sack being attached to the loop. 
   
   
       20 . The apparatus as set forth in  claim 19 , wherein the sack has a distal end connected to the guide wire and the guide wire extends through the loop and moth of the sack. 
   
   
       21 . An apparatus for removing a solid object from a body canal or vessel, the apparatus comprising:
 a guide wire including a proximal stop and a distal stop in spaced relation on the guide wire;   a mounting member slidably received on the guide wire and disposed between the proximal and distal stops, each stop being configured to avoid the slidable passage of the mounting member;   a sack having an inlet mouth; and   a resilient frame connected to the mounting member and sack for biasing the mouth of the sack open, the resilient frame being positionable between a collapsed state where the mouth of the sack is closed against the bias of the resilient frame and a deployed state where the mouth of the sack is biased open by the resilient frame,   
   
   
       22 . The apparatus as set forth in  claim 21 , further including:
 a containment collar configured to slidably receive the guide wire therethrough and to receive at least part of the resilient frame therein; and   a pull wire connected to the containment collar, wherein in response to relative movement between the guide wire and the pull wire, the resilient frame is positionable between the collapsed state at least partially inside the containment collar and the deployed state outside the containment collar.   
   
   
       23 . The apparatus as set forth in  claim 21 , further including a deployment catheter having a lumen configured to slidably receive the guide wire, the deployment catheter having an end configured to abut an end of the mounting member when the coil of wire is received on the guide wire between the deployment catheter and the distal stop. 
   
   
       24 . The apparatus as set forth in  claim 21 , further including a deployment catheter having a lumen configured to slidably receive the guide wire and at least part of the resilient frame therein, wherein in response to relative movement between the guide wire and the deployment catheter, the resilient frame is positionable between the collapsed state at least partially inside the deployment catheter and the deployed state outside the deployment catheter. 
   
   
       25 . The apparatus as set forth in  claim 21 , wherein:
 the closed bottom of the sack is connected to the mounting member adjacent one end thereof;   the resilient frame is connected to the mounting member adjacent the end thereof opposite the closed bottom of the sack; and   the mouth of the sack is connected to the wire frame between the ends of the mounting member.   
   
   
       26 . An apparatus for removing a solid object from a body canal or vessel, the apparatus comprising:
 a guide wire; and   a resilient frame including a sack for collecting emboli entrained in the body canal, the resilient frame and sack being disposed on the guide wire, the resilient frame having a single, radially extending arm having a first end connected to the guide wire and a second end coupled to an expandable loop, the sack having a mouth and a closed bottom opposite the mouth, the mouth of the sack being attached to the loop, the resilient frame being positionable between a collapsed state where the mouth of the sack is closed against the bias of the loop of the resilient frame and a deployed state where the mouth of the sack is biased open by the loop of the resilient frame, the single arm positoning the loop within the body canal or vessel.   
   
   
       27 . The apparatus as set forth in  claim 26 , wherein the closed bottom of the sack is connected to the guide wire and the guide wire extends through the loop and mouth of the sack. 
   
   
       28 . The apparatus as set forth in  claim 26 , further including:
 a containment collar configured to slidably receive the guide wire therethrough and to receive at least part of the resilient frame therein; and   a pull wire connected to the containment collar, wherein in response to relative movement between the guide wire and the pull wire, the resilient frame is positionable between the collapsed state at least partially inside the containment collar and the deployed state outside the containment collar.   
   
   
       29 . A method for deploying an apparatus for removing a solid object from a body canal or vessel, the apparatus including a guide wire, a resilient frame including a sack having a mouth and a closed bottom opposite the mouth, the resilient frame being positionable between a collapsed state where the mouth of the sack is closed against the bias of the resilient frame and a deployed state where the mouth of the sack is biased open by the resilient frame; a mounting member configured to slidably receive the guide wire, the resilient frame being attached to the resilient frame; a containment collar configured to slidably receive the guide wire therethrough and to receive at least part of the resilient frame therein; a deployment catheter has an end configured to abut an end of the mounting member; and a pull wire connected to the containment collar, wherein the pull wire has a proximal end which remains outside the body vessel during usage, the method including:
 deploying the guide wire in a body vessel of a patient;   sliding the mounting member, resilient frame and containment collar over the guide wire to position the resilient frame into a target area in the body vessel;   advancing the deployment catheter along the guide wire to a position in which the distal end of the deployment catheter abuts an end of the mounting member; and   moving the pull wire proximally to retract the containment collar from the resilient frame.   
   
   
       30 . The method of  claim 29 , wherein the containment collar extends over the deployment catheter as the pull wire is retracted proximally. 
   
   
       31 . The method of  claim 29 , wherein the deployment catheter has a proximal end which extends outside of the body vessel during deployment of the apparatus in the body vessel. 
   
   
       32 . The method of  claim 29 , wherein the mounting member is a coil of wire. 
   
   
       33 . The method of  claim 29 , wherein the guide wire includes a distal stop. 
   
   
       34 . The method of  claim 33 , wherein the step of sliding the mounting member, resilient frame and containment collar over the guide wire to position the resilient frame into a target area in the body vessel includes abutting a distal end of the mounting member against the distal stop of the guide wire. 
   
   
       35 . The method of  claim 29 , wherein the resilient frame is adapted to exert a force against the wall of the body vessel once deployed. 
   
   
       36 . The method of  claim 29 , wherein a portion of the pull wire has a coiled section which wraps around the guide wire.