Biopsy device

Abstract

Biopsy devices, as well as related methods and systems, are disclosed.

1 - 30 . (canceled) 
     
     
         31 . A method of obtaining a tissue sample, comprising:
 positioning a sampling portion of a biopsy device proximate target tissue, wherein the sampling portion is configured to receive and sever tissue, the sampling portion extending along a longitudinal axis;   moving the sampling portion from a closed position to an open position by moving a moveable member relative to a stationary member, the moveable member having a sharp edge, material configured to provide electrocautery current to tissue, and a hollow channel therein, wherein in the open position, the moveable member is configured to be received by the stationary member;   receiving tissue within the moveable member; and   applying a pressure differential in the sampling portion when the sampling portion is in the open position.   
     
     
         32 . The method of  claim 31 , wherein applying a pressure differential includes applying a pressure differential in a direction substantially perpendicular to the longitudinal axis. 
     
     
         33 . The method of  claim 32 , wherein the pressure differential is a first pressure differential, the method further including:
 applying a second pressure differential in the sampling portion when the sampling portion is in the open position, wherein the second pressure differential is in a direction substantially parallel to the longitudinal axis.   
     
     
         34 . The method of  claim 31 , further including:
 moving the sampling portion from the open position to the closed position and severing tissue.   
     
     
         35 . The method of  claim 31 , wherein moving the sampling portion from a closed position to an open position includes rotating the moveable member about the longitudinal axis. 
     
     
         36 . The method of  claim 31 , wherein at least a portion of the moveable member includes insulation. 
     
     
         37 . The method of  claim 31 , further comprising:
 energizing the material.   
     
     
         38 . The method of  claim 37 , further comprising:
 cauterizing tissue via the material.   
     
     
         39 . A method of obtaining a tissue sample, comprising:
 positioning a sampling portion of a biopsy device proximate target tissue, wherein the sampling portion is configured to receive and sever tissue, the sampling portion extending along a longitudinal axis;   moving the sampling portion from a closed position to an open position by rotating a moveable member about the longitudinal axis and relative to a stationary member, wherein each of the moveable and stationary members includes an elongate portion and a sharp tip portion, wherein at least a portion of the sampling portion includes material configured to provide electrocautery current to tissue, wherein the moveable member includes a plurality of openings in fluid communication with a hollow channel extending within the moveable member, and wherein in the open position, the moveable member is configured to nest within the stationary member;   receiving tissue within the moveable member; and   applying a pressure differential in the sampling portion when the sampling portion is in the open position.   
     
     
         40 . The method of  claim 39 , wherein a pressure differential system is in fluid communication with the hollow channel of the moveable member. 
     
     
         41 . The method of  claim 39 , wherein applying a pressure differential includes applying a pressure differential in a direction substantially perpendicular to the longitudinal axis. 
     
     
         42 . The method of  claim 41 , wherein the pressure differential is a first pressure differential, the method further including:
 applying a second pressure differential in the sampling portion when the sampling portion is in the open position, wherein the second pressure differential is in a direction substantially parallel to the longitudinal axis.   
     
     
         43 . The method of  claim 39 , wherein the moveable member includes a cross-sectional shape of a partial circle complimentary to a partial circle cross-sectional shape of the stationary member. 
     
     
         44 . The method of  claim 39 , further including:
 moving the sampling portion from the open position to the closed position and severing tissue.   
     
     
         45 . The method of  claim 39 , wherein at least a portion of the moveable member includes insulation. 
     
     
         46 . The method of  claim 39 , further comprising:
 energizing the material.   
     
     
         47 . The method of  claim 46 , further comprising:
 cauterizing tissue via the material.   
     
     
         48 . The method of  claim 39 , wherein the material is disposed on the moveable member.