Specimen retrieval device

Patent metadata

Field	Value
Publication number	US-9468452-B2
Application number	US-201314047451-A
Country	US
Kind code	B2
Filing date	Oct 7, 2013
Priority date	Dec 17, 2010
Publication date	Oct 18, 2016
Grant date	Oct 18, 2016

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.

First claim

What is claimed is:

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.

Assignees

• Covidien Lp

Inventors

• Menn Dmitri
• Stellon Gene A

Classifications

• A61B17/221 Primary

  Gripping devices in the form of loops or baskets {for gripping calculi or similar types of obstructions (surgical snare instruments A61B17/32056)} · CPC title

• A61B17/00234 Primary

  for minimally invasive surgery (A61B17/0218, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence) · CPC title

• A61B17/2909

  Handles · CPC title

• A61B2017/00862

  elastic or resilient · CPC title

• A61B2017/00287

  Bags for minimally invasive surgery · CPC title