Endoscopic Ultrasound Fine Needle Aspiration Device

Abstract

A handle for a medical device includes a proximal segment defining a proximal lumen extending therethrough and sized and shaped to receive an endoscopic medical device therein. A medial segment is received within a distal portion of the proximal segment and has an outer diameter smaller than an inner diameter thereof. A medial lumen extends through the proximal segment and is open to the proximal lumen. A distal segment is received within a distal portion of the medial segment and defines a distal lumen extending therethrough open to the medial lumen. The distal segment has an outer diameter smaller than an inner diameter of the medial segment. The medial segment includes a first movement limiting mechanism limiting movement of an endoscopic medical device inserted therethrough along an axis of the distal lumen and a second movement limiting mechanism limiting advancement of an endoscope attached to the distal body portion.

1 - 22 . (canceled) 
     
     
         23 . A telescoping handle for a medical device, comprising:
 a proximal segment including a proximal lumen extending longitudinally therethrough, the proximal lumen being sized and shaped to receive an endoscopic medical device therein, the proximal segment including a coupler configured to couple the endoscopic medical device thereto so that the endoscopic medical device moves and rotates with the proximal segment;   a medial segment rotatably received within a distal portion of the proximal segment and slidable within the distal portion of the proximal segment, the medial segment defining a medial lumen extending therethrough open to the proximal lumen; and   a distal segment slidable axially within a distal portion of the medial segment and defining a distal lumen extending therethrough open to the medial lumen, the medial and distal lumens being sized and shaped to permit sliding and rotation of the endoscopic medical device therein relative to the medial and distal segments.   
     
     
         24 . The handle of  claim 23 , further comprising a proximal movement limiting mechanism being configurable by a user to select a maximum amount of movement of the medial segment into the proximal segment. 
     
     
         25 . The handle of  claim 24 , wherein the proximal movement limiting mechanism is configured to frictionally engage an outer wall of the medial segment. 
     
     
         26 . The handle of  claim 25 , further comprising a distal movement limiting mechanism configurable by the user to lock the distal segment in a desired position relative to the medial segment. 
     
     
         27 . The handle of  claim 25 , wherein the proximal movement limiting mechanism is slidably positioned over a target portion of the medial segment so that only a portion of the medial segment located proximally thereof is retractable into the proximal segment. 
     
     
         28 . The handle of  claim 23 , wherein the endoscopic medical device is a needle. 
     
     
         29 . The handle of  claim 23 , wherein the distal segment includes an attachment sized and shaped to engage a corresponding attachment at a proximal end of an endoscope to which the handle is to be mounted. 
     
     
         30 . The handle of  claim 23 , wherein the distal segment includes a structure configured to engage an endoscope via a leer lock. 
     
     
         31 . A telescoping handle for a medical device, comprising:
 a proximal segment defining a proximal lumen extending longitudinally therethrough, the proximal lumen being sized and shaped to receive an endoscopic medical device therein, the proximal segment including a coupler for coupling the endoscopic medical device thereto so that the endoscopic medical device moves and rotates with the proximal segment;   a medial segment rotatably received and longitudinally slidable within a distal portion of the proximal segment, the medial segment defining a medial lumen extending therethrough open to the proximal lumen;   a distal segment received longitudinally slidable within a distal portion of the medial segment and defining a distal lumen extending therethrough open to the medial lumen; and   a telescoping internal channel extending through the medial and distal segments, the telescoping channel including first, second and third sections movable relative to one another upon retraction or expansion of the proximal, medial and distal segments relative to one another, wherein the first section is within the proximal segment, the second section is within the medial segment and the third section is within the distal segment, wherein the medial and distal lumens are sized and shaped so that rotation of the proximal segment relative to the medial segment rotates the endoscopic medical device relative to the medial and distal segments and movement of the proximal segment distally longitudinally relative to the medial segment moves the endoscopic medical device axially relative to the medial segment.   
     
     
         32 . The handle of  claim 31 , wherein the medial segment is telescopically movable into and out of a portion of the proximal segment and wherein the distal segment is telescopically movable into and out of a portion of the medial segment. 
     
     
         33 . The handle of  claim 31 , wherein the proximal retraction of the distal segment into the medial segment retracts the third section into the second section. 
     
     
         34 . The handle of  claim 31 , wherein the proximal retraction of the medial segment into the proximal segment retracts the second section into the first section. 
     
     
         35 . The handle of  claim 31 , wherein the third section has an outer diameter smaller than an inner diameter of the second section. 
     
     
         36 . The handle of  claim 35 , wherein the second section has an outer diameter smaller than an inner diameter of the first section. 
     
     
         37 . The handle of  claim 31 , further comprising a proximal movement limiting mechanism configurable by a user to set a maximum amount of movement of the medial segment into the proximal segment. 
     
     
         38 . The handle of  claim 37 , wherein the proximal movement limiting mechanism frictionally engages an outer wall of the medial segment. 
     
     
         39 . The handle of  claim 37 , further comprising a distal movement limiting mechanism operable by the user to lock a position of the distal segment relative to the medial segment. 
     
     
         40 . The handle of  claim 31 , wherein the distal segment includes an attachment sized and shaped to engage a corresponding attachment at a proximal end of an endoscope to which the handle is to be mounted. 
     
     
         41 . The handle of  claim 37 , wherein the proximal movement limiting mechanism is slidably positionable by the user over a target portion of the medial segment so that only a portion of the medial segment located proximally thereof is retractable into the proximal segment.