Handle for use with steerable device for introducing diagnostic and therapeutic elements into the body

Abstract

A handle apparatus includes a handle body, a trolley member that may be secured to a steering wire, and a steering member operably connected to the trolley member. Rotation of the trolley member is prevented and rotation of the steering member axially repositions the trolley member and steering wire.

We claim:  
     
         1 . A handle apparatus for use with a steerable device including a steerable device body and steering wire, the handle apparatus comprising: 
 a handle body adapted to be secured to the steerable device body and defining an inner chamber, a proximal aperture and a distal aperture;    a trolley member slidably located at least partially within the inner chamber and adapted to be connected to the steering wire, the trolley member defining a trolley member lumen substantially aligned with the handle body proximal and distal apertures; and    a steering member rotatably coupled to handle body and operably connected to the trolley member such that rotation of the steering member axially repositions the trolley member, the steering member including a steering member lumen substantially axially aligned with the trolley member lumen.    
     
     
         2 . A handle apparatus as claimed in  claim 1 , wherein the handle body includes a strain relief member.  
     
     
         3 . A handle apparatus as claimed in  claim 1 , wherein the handle body includes at least one wing member.  
     
     
         4 . A handle apparatus as claimed in  claim 1 , wherein the inner chamber includes a channel and the trolley member includes a tab member adapted to fit within the channel.  
     
     
         5 . A handle apparatus as claimed in  claim 1 , wherein the steerable device defines a steerable device lumen and the handle body is adapted to secure the steerable device such that the steerable device lumen is substantially axially aligned with the trolley member lumen.  
     
     
         6 . A handle apparatus as claimed in  claim 1 , wherein the steering member lumen includes a spiral-shaped groove and the trolley member includes a complimentary spiral-shaped ridge.  
     
     
         7 . A handle apparatus as claimed in  claim 1 , wherein the handle body defines a proximal end and the steering member includes a knob portion extending from the proximal end of the handle body.  
     
     
         8 . A handle apparatus as claimed in  claim 1 , wherein the steering member is adapted to be coupled to a connector.  
     
     
         9 . A handle apparatus for use with a steerable device including a steerable device body and steering wire, the handle apparatus comprising: 
 a handle body adapted to be secured to the steerable device body and defining an outer surface;    a steering member defining an inner surface; and    a trolley member adapted to be connected to the steering wire and at least partially located between the handle body outer surface and the steering member inner surface, the trolley member being operably connected to the steering member such that the trolley member will be axially repositioned in response to rotation of the steering member about the handle body.    
     
     
         10 . A handle apparatus as claimed in  claim 9 , wherein the handle body includes a lumen extending axially therethrough.  
     
     
         11 . A handle apparatus as claimed in  claim 9 , wherein the handle body is adapted to be coupled to a connector.  
     
     
         12 . A handle apparatus as claimed in  claim 9 , further comprising: 
 a strain relief element secured to a distal portion of the handle body.    
     
     
         13 . A handle apparatus as claimed in  claim 12 , wherein the handle body includes a fitting adapted to be coupled to a connector and the handle body outer surface is located between the fitting and the strain relief element.  
     
     
         14 . A handle apparatus as claimed in  claim 9 , wherein the steering member comprises a knob.  
     
     
         15 . A handle apparatus as claimed in  claim 9 , wherein the steering member and the trolley member respectively include complementary threads.  
     
     
         16 . A handle apparatus as claimed in  claim 9 , wherein the trolley member includes an axial channel and the outer surface of the handle body includes an axial ridge adapted to slide within the axial channel.  
     
     
         17 . A handle apparatus as claimed in  claim 9 , wherein the steering wire includes an anchor and the trolley member includes a recess adapted to receive the anchor.  
     
     
         18 . A handle apparatus for use with a steerable device including a steerable device body and steering wire, the handle apparatus comprising: 
 a handle body including at least one wing member and a portion adapted to be secured to the steerable device; and    a steering member on the handle body and operably connected to the steering wire.    
     
     
         19 . A handle apparatus as claimed in  claim 18 , wherein the at least one wing member comprises two wing members.  
     
     
         20 . A handle apparatus as claimed in  claim 19 , wherein the wing members are positioned on opposite sides of the handle body.  
     
     
         21 . A handle apparatus as claimed in  claim 18 , wherein the at least one wing member is located on a proximal portion of the handle body.  
     
     
         22 . A handle apparatus as claimed in  claim 19 , wherein the at least one wing member defines curved edges.  
     
     
         23 . A handle apparatus for use with a steerable device including a steerable device body and steering wire, the handle apparatus comprising: 
 a handle body including an integrally formed strain relief element adapted to be secured to the steerable device; and    a steering member on the handle body operably connected to the steering wire.    
     
     
         24 . A handle apparatus as claimed in  claim 23 , wherein the handle body comprises a unitary molded part.  
     
     
         25 . A handle apparatus for use with a steerable device including a steerable device body and steering wire, the handle apparatus comprising: 
 a handle body;    a strain relief element associated with the handle body and adapted to be secured to the steerable device, the strain relief element including a plurality of spaced portions; and    a steering member on the handle body operably connected to the steering wire.    
     
     
         26 . A handle apparatus as claimed in  claim 25 , wherein the spaced portions comprise spaced disk-shaped portions.  
     
     
         27 . A handle apparatus as claimed in  claim 26 , wherein the strain relief element includes ridges that interconnect the spaced disk-shaped portions.  
     
     
         28 . A handle apparatus as claimed in  claim 25 , wherein the strain relief element defines proximal and distal ends and narrows from the proximal end toward the distal end.