Surgical retrieval apparatus

Abstract

A surgical retrieval apparatus includes a specimen retrieval bag including a rim movable from a collapsed configuration when positioned within a delivery tube to an automatically expanded configuration when advanced from the delivery tube. The rim is configured to receive a tissue specimen when the rim is in the expanded configuration. The retrieval bag defines a proximal portion with respect to the incision and a distal portion with respect to the incision. A specimen retrieval system further includes a delivery tube defining a longitudinal axis and includes the surgical retrieval apparatus contained therein that is configured to be inserted through a first opening in a patient's skin. The delivery tube defines an internal volume extending from a proximal end to a distal end of the delivery tube. The surgical retrieval apparatus is separable from the delivery tube.

1 . (canceled) 
     
     
         2 . A specimen retrieval system comprising:
 a delivery tube defining a longitudinal axis and including a surgical retrieval apparatus contained therein configured to be inserted through a first opening in a patient's skin, the delivery tube defining an internal volume extending from a proximal end to a distal end of the delivery tube, the surgical retrieval apparatus separable from the delivery tube;   the surgical retrieval apparatus including   a support member, and   a retrieval bag extending from the support member, the support member defining an opening configured to receive a tissue specimen into the retrieval bag, the support member and the retrieval bag defining a proximal end and a distal end, the proximal end and distal end of the support member and retrieval bag defining a major axis of the support member and defining a minor axis orthogonal to the major axis,   wherein the support member and the retrieval bag are movable between a first collapsed configuration and a second expanded configuration,   wherein when moved at least partially outside the delivery tube, the support member automatically expands at least a portion of the retrieval bag along the major axis and the minor axis towards the second expanded configuration maintaining the major axis and the minor axis,   the configuration of the at least a portion of the opening of the support member and of the at least a portion of the retrieval bag being larger than a configuration of the at least a portion of the opening of the support member and of the at least a portion of the retrieval bag that remains inside the delivery tube to facilitate receiving the specimen into the retrieval bag.   
     
     
         3 . The specimen retrieval system according to  claim 2 , further comprising a first grasper including a pair of jaws and a shaft, the shaft having a net positioned on an external surface thereof proximal to the pair of jaws. 
     
     
         4 . The specimen retrieval system according to  claim 3 , wherein the net is positionable over the pair of jaws when the pair of jaws is in a closed configuration with the tissue specimen grasped therebetween. 
     
     
         5 . The specimen retrieval system according to  claim 3 , wherein the net includes an everted distal end. 
     
     
         6 . The specimen retrieval system according to  claim 5 , further including a second grasper configured to grasp the everted distal end of the net to facilitate placement of the net over the tissue specimen positioned within the retrieval bag. 
     
     
         7 . The specimen retrieval system according to  claim 2 , wherein the support member defines a rim movable from a collapsed configuration when positioned within the delivery tube to an at least partially expanded configuration when advanced from the delivery tube, the rim defines the opening of the support member that is configured to receive a tissue specimen when the rim is in the at least partially expanded configuration. 
     
     
         8 . The specimen retrieval system according to  claim 7 , wherein the proximal portion of the retrieval bag facilitates maintaining at least a portion of the rim external of the incision in a patient's skin when the rim is in the at least partially expanded configuration. 
     
     
         9 . The specimen retrieval system according to  claim 7 , wherein the rim forms a flexible path in the expanded configuration, the flexible path extending from the proximal portion of the retrieval bag outside of the incision to the distal portion of the retrieval bag that is configured to extend into a body cavity accessible via the incision. 
     
     
         10 . The specimen retrieval system according to  claim 9 , wherein the opening defined by the rim extends from the proximal portion of the retrieval bag to the distal portion of the retrieval bag and maintains the major axis and the minor axis to further define an internal volume of the retrieval bag without the presence of other structures. 
     
     
         11 . The specimen retrieval system according to  claim 10 , wherein the retrieval bag defines an interior surface limiting the internal volume with respect to the opening, both a portion of the opening that is configured to extend distally into the body cavity accessible via the incision and the internal volume of the distal portion of the retrieval bag presenting an unobstructed path to receive the tissue specimen. 
     
     
         12 . The specimen retrieval system according to  claim 10 , wherein the separation of the delivery tube from the retrieval bag enables the delivery tube to be removed from the body cavity through the incision prior to receipt of the tissue specimen in the internal volume of the retrieval bag. 
     
     
         13 . The specimen retrieval system according to  claim 10 , wherein the distal portion of the retrieval bag that is configured to extend distally into the body cavity remains penetrating the incision following removal of the delivery tube from the body cavity through the incision. 
     
     
         14 . The specimen retrieval system according to  claim 3 , wherein the net is advanceable along the external surface of the shaft of the first grasper for placement over the tissue specimen received within the retrieval bag. 
     
     
         15 . The specimen retrieval system according to  claim 3 , wherein the net comprises at least one of a polymeric material and a molded plastic. 
     
     
         16 . The specimen retrieval system according to  claim 3 , wherein the net comprises an elongated shape with a diameter smaller than a diameter of the tissue specimen intended to be removed. 
     
     
         17 . The specimen retrieval system of  claim 10 ,
 wherein the opening defines a distance between a proximal most point of the proximal portion of the retrieval bag and a distal most point of the distal portion of the retrieval bag, and   wherein the distance has a mid-point between the proximal most point of the proximal portion of the retrieval bag and the distal most point of the distal portion of the retrieval bag, the opening extending from the proximal portion of the retrieval bag to the distal portion of the retrieval bag a distance greater than the distance from the proximal portion of the retrieval bag to the mid-point of the opening.   
     
     
         18 . A surgical retrieval apparatus comprising:
 a specimen retrieval bag including a rim movable from a collapsed configuration when positioned within a delivery tube to an automatically expanded configuration when advanced from the delivery tube, the rim configured to receive a tissue specimen when the rim is in the expanded configuration,   the retrieval bag defining a proximal portion with respect to the incision and a distal portion with respect to the incision.   
     
     
         19 . The surgical retrieval apparatus according to  claim 18 , wherein the rim forms a flexible path in the expanded configuration, the flexible path extending from the proximal portion of the retrieval bag outside of the incision to the distal portion of the retrieval bag that is configured to extend into a body cavity accessible via the incision. 
     
     
         20 . The surgical retrieval apparatus according to  claim 18 , wherein the rim defines a vertical opening in the retrieval bag, the vertical opening defined by the rim extending from the proximal portion of the retrieval bag to the distal portion of the retrieval bag to further define an internal volume of the retrieval bag without the presence of other structures. 
     
     
         21 . The surgical retrieval apparatus according to  claim 20 , wherein the retrieval bag defines an interior surface limiting the internal volume with respect to the vertical opening, both a portion of the opening that is configured to extend distally into the body cavity accessible via the incision and the internal volume of the distal portion of the retrieval bag presenting an unobstructed path to receive the tissue specimen. 
     
     
         22 . The surgical retrieval apparatus according to  claim 19 , further comprising a delivery tube insertable through an incision in a patient's skin, the delivery tube defining an internal volume extending from a proximal end to a distal end of the delivery tube. 
     
     
         23 . The surgical retrieval apparatus according to  claim 22 , wherein the delivery tube is configured to enable the delivery tube to be removed from the body cavity through the incision to prior to receipt of the tissue specimen in the internal volume of the retrieval bag. 
     
     
         24 . The surgical retrieval apparatus according to  claim 22 , wherein the distal portion of the retrieval bag that is configured to extend distally into the body cavity remains penetrating the incision following removal of the delivery tube from the body cavity through the incision. 
     
     
         25 . The surgical retrieval apparatus according to  claim 18 , wherein the proximal portion of the retrieval bag facilitates maintaining at least a portion of the rim external of the incision in a patient's skin when the rim is in the expanded configuration. 
     
     
         26 . The surgical retrieval apparatus according to  claim 18 , wherein the surgical retrieval apparatus is separable from the delivery tube.