Securement for a surgical site marker and deployment device for same

Abstract

A method of securing a biopsy marker within a biopsy site includes depositing a marker element within a biopsy site and fixing the marker element within the biopsy site by injecting a securing agent within the biopsy site. Delivery devices for delivering the securing agent to the biopsy site are also disclosed.

1 . A marker delivery device, comprising:
 an outer cannula having an open distal end;   an inner cannula disposable within the outer cannula and having a selectively openable distal end; and   an actuation member disposed in the inner cannula,   wherein the outer cannula is configured to house a marker element distal of the inner cannula,   wherein the inner cannula is configured to house a securing agent distal of the actuation member, and   wherein the actuation member is configured to eject the securing agent and the marker element out of the open distal end of the outer cannula.   
     
     
         2 . The device of  claim 1 , the outer cannula comprising an actuatable retaining tab disposed at the distal end, wherein the actuatable retaining tab is configured to retain the marker in the outer cannula unless actively actuated. 
     
     
         3 . The device of  claim 2 , wherein the retaining tab is configured to be actuated by the actuation member. 
     
     
         4 . The device of  claim 1 , wherein the actuation member is a plunger. 
     
     
         5 . The device of  claim 4 , further comprising a seal member disposed on an interior surface of the inner cannula and around a portion of the plunger, wherein the seal member is sized to permit the plunger to slide therethrough. 
     
     
         6 . The device of  claim 1 , wherein the securing agent is secured to at least a portion of the marker element. 
     
     
         7 . The device of  claim 1 , wherein the securing agent is in a form selected from the group consisting of liquid, slurry, gel, powder, pellet, and plug. 
     
     
         8 . The device of  claim 1 , the inner cannula comprising a valve member secured adjacent the distal end of the inner cannula. 
     
     
         9 . The device of  claim 8 , wherein the valve member is a normally closed valve member. 
     
     
         10 . The device of  claim 8 , wherein the valve member is a duckbill valve. 
     
     
         11 . The device of  claim 1 , further comprising:
 a marker element housed in the outer cannula distal of the inner cannula; and   a securing agent housed in the inner cannula distal of the actuation member.   
     
     
         12 . A marker delivery device, comprising:
 a cannula defining an inner lumen therein;   a cap member attached to a distal end of the cannula and generally closing off the inner lumen; and   an actuation member slidably disposed within the inner lumen,   wherein the cap member and the actuation member cooperate with the inner lumen to define a cavity configured to house a securing agent and a marker, and   wherein the actuation member is selectively movable distally toward the cap member to rupture the cap member from the distal end of the cannula and to expel the securing agent and the marker from the cannula.   
     
     
         13 . The device of  claim 12 , wherein the cap member is constructed of bioabsorbable material. 
     
     
         14 . The device of  claim 12 , wherein the cap member is a film. 
     
     
         15 . The device of  claim 12 , wherein the film is a heat shrinkable material. 
     
     
         16 . The device of  claim 12 , wherein the securing agent is secured to at least a portion of the marker element. 
     
     
         17 . The device of  claim 12 , wherein the actuation member is a plunger, wherein a piercing element is attached to a distal end of the plunger. 
     
     
         18 . The device of  claim 12 , further comprising a seal member disposed on an interior surface of the cannula and around a portion of the plunger, wherein the seal member is sized to permit the plunger to slide therethrough. 
     
     
         19 . The device of  claim 12 , further comprising:
 a marker element housed in the cavity; and   a securing agent housed in the cavity.   
     
     
         20 . A delivery device, comprising:
 a cannula defining an inner lumen therein, the cannula having a proximal end and a distal end;   a valve member secured to the cannula, wherein the valve member is secured adjacent the distal end of the cannula;   an actuation member connected to the proximal end of the cannula; and   a semi-permeable filter element positioned within the cannula between the valve member and the actuation member, the filter element cooperating to form a cavity between the valve member and the filter element; and   a securing agent disposed in the cavity,   wherein the actuation member is selectively actuatable to cause a fluid to flow through filter element and force the securing agent through the valve member.