Specimen retrieval device

• US 9,468,452 B2
• Filed: 10/07/2013
• Issued: 10/18/2016
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: Covidien LP (Medtronic Plc)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Menn, Dmitri, Stellon, Gene A.
• Primary Examiner(s): Eastwood, David C
• Application Number:
  US14/047,451
• Publication Number:
  US 20140058403A1
• Time in Patent Office: 1,107 Days
• Field of Search: 606/114, 606127-128, 600/562, 600/580, 600/582, 206/361, 206/305, 206/438, 604/163, 604/164.08, 604/164.12, 604/177, 604/271, 604327-328, 604/347, 604/349, 128/842, 128/844
• US Class Current: 1/1
• CPC Class Codes: A61B 17/00234 for minimally invasive surgery A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence
• CPC Class Codes: A61B 17/221 Gripping devices in the form of loops or baskets for gripping calculi or similar types of obstructions surgical snare instruments A61B17/32056
• CPC Class Codes: A61B 17/2909 Handles
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00907 for light
• CPC Class Codes: A61B 2017/2911 rings
• CPC Class Codes: A61B 2017/320064 with tissue or sample retaining means

Abstract

A specimen retrieval device is provided. The specimen retrieval device includes an applicator. A specimen retrieval pouch operably is disposed within the applicator and deployable therefrom. The specimen retrieval pouch defines a longitudinal axis therethrough and includes a closed bottom portion and an open upper portion. The closed bottom portion includes a plurality of spikes configured to grasp a specimen positioned within the confines closed bottom portion. The upper closed portion includes one or more axial folds that are movable from a folded configuration to an unfolded configuration when a predetermined force is applied to a portion of the specimen retrieval pouch.

Claims

1. A specimen retrieval device, comprising

an applicator including a handle assembly;

and

a specimen retrieval pouch operably disposed within the applicator and deployable therefrom upon actuation of the handle assembly, the specimen retrieval pouch including a closed bottom portion and an open upper portion, the closed bottom portion including a plurality of retention features circumferentially disposed on an inner annular side wall of the closed bottom portion, the plurality of retention features configured to engage a specimen positioned within the confines of the closed bottom portion when the closed bottom portion is pulled distally, wherein the plurality of retention features are in the form of a plurality of spikes.

2. A specimen retrieval device according to claim 1, wherein the open upper portion includes at least one axial fold movable from a folded configuration to an unfolded configuration when a predetermined force is applied to pull the closed bottom portion of the specimen retrieval pouch.

3. A specimen retrieval device according to claim 1, wherein the plurality of retention features extends in an orthogonal orientation from the inner annular wall of the specimen retrieval pouch and toward a center thereof.

4. A specimen retrieval device according to claim 1, wherein an interior surface of the specimen retrieval pouch is coated with a lubricious material.

5. A specimen retrieval device according to claim 4, wherein the lubricious material is selected from the group consisting of a hydrogel gel and polytetrafluoroethylene.

6. A specimen retrieval device according to claim 4, wherein the lubricious material provides a friction coefficient that ranges from about 0.003 to about 0.09.

7. A specimen retrieval device according to claim 1, wherein the open upper portion includes at least two axial folds.

8. A specimen retrieval device according to claim 7, wherein the at least two axial folds include an outer axial fold and an inner axial fold, wherein a force needed to move the outer axial fold from a folded configuration to an unfolded configuration is less than a force needed to move the inner axial fold from a folded configuration to an unfolded configuration.

9. A specimen retrieval device according to claim 1, wherein the plurality of retention features are configured to engage the specimen positioned within the confines of the closed bottom portion when the closed bottom portion is pulled distally with a pulling force that is applied in a generally parallel orientation with respect to a longitudinal axis defined through the specimen retrieval pouch.

10. A specimen retrieval device according to claim 1, wherein the plurality of spikes include one of a generally triangular configuration.

11. A specimen retrieval device according to claim 1, further including a grasping device configured to facilitate grasping the specimen retrieval pouch.

12. A specimen retrieval device according to claim 11, wherein the grasping device is in the form of a pouch ring that is positioned on an exterior surface of the specimen retrieval pouch adjacent the closed bottom portion.