TISSUE CONTAINMENT DEVICE FOR USE IN SURGICAL PROCEDURES

• US 20190328376A1
• Filed: 06/18/2017
• Published: 10/31/2019
• Est. Priority Date: 06/16/2016
• Status: Active Grant

• Current Assignee: Ark Surgical Ltd.
• Original Assignee: Ark Surgical Ltd.
• Inventors: BAR-YOSEPH, Gill, BLEICHER, David
• Granted Patent: US 11,253,239 B2
• Time in Patent Office: Days
• 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 2017/00119 alarm; indicating an abnormal situation
• CPC Class Codes: A61B 2017/00287 Bags for minimally invasive surgery
• CPC Class Codes: A61B 2017/00526 Methods of manufacturing
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• CPC Class Codes: A61B 2017/00818 Treatment of the gastro-intestinal system
• CPC Class Codes: A61B 2017/00955 thermoplastic
• CPC Class Codes: A61B 2017/22062 to be filled with liquid
• CPC Class Codes: A61B 2017/2215 having an open distal end
• CPC Class Codes: A61B 2090/064 for measuring force, pressure or mechanical tension
• CPC Class Codes: A61B 2090/08021 of the patient or his organs
• CPC Class Codes: A61B 2090/0809 Indication of cracks or breakages
• CPC Class Codes: A61B 90/06 Measuring instruments not otherwise provided for
• CPC Class Codes: A61B 90/08 Accessories or related features not otherwise provided for
• CPC Class Codes: A61B 90/90 Identification means for patients or instruments, e.g. tags

Abstract

A tissue containment device (10) for isolating tissue from surrounding tissue during a surgical procedure to remove the tissue includes a bag (12) formed by one or more walls (14) defining a containment compartment (16) and an opening (18) for accessing the containment compartment. Each wall (14) is formed from at least two layers including an inner layer (20) facing the containment compartment and an outer layer (22) facing outwards from bag (12). The layers define between them one or more inflatable volumes (24). Layers (20) and (22) are interconnected at spaced-apart connection regions (28) that are arranged such that, when a fluid is introduced into the inflatable volumes (24), regions of the at least two layers between the connection regions form wall cavity regions surrounding an internal volume of the containment compartment.

Claims

1. A tissue containment device for isolating tissue from surrounding tissue during a surgical procedure to remove the tissue, the device comprising:

(a) a bag comprising one or more walls, defining a containment compartment and an opening for accessing said containment compartment, wherein said one or more walls define at least one inflatable volume therebetween; and

(b) at least one inflation port in fluid connection with said at least one inflatable volume for introducing and removing a fluid to and from said at least one inflatable volume,

wherein said at least one inflatable volume comprises two or more inflatable regions spaced-apart by connection regions, said connection regions being configured such that, when a fluid is introduced to said at least one inflatable volume, said two or more inflatable regions are inflated to form wall cavity regions substantially surrounding an internal volume of said containment compartment, wherein said wall cavity regions are closely packed to a distance which prevents introduction of a tool therebetween.

2. The device of claim 1, wherein said wall cavity regions extend over at least 85% of an inward facing surface of said at least one wall facing said internal volume as projected to a centroid of said internal volume.

3. The device of claim 1, wherein said wall cavity regions form a plurality of adjacent bulges in proximity to each other such that an instrument cannot reach said connection regions without first contacting said bulges.

4. The device of claim 18, wherein said at least two layers are implemented as initially flat sheets of material that are selectively interconnected at said connection regions.

5. The device of claim 18, wherein at least one layer of said at least two layers is implemented as a layer having an increased resistance to flexing compared to different layer of said at least two layers.

6. The device of claim 18, wherein at least one layer of said at least two layers differs from a different layer of said at least two layers in at least one property selected from the group consisting of:

shear strength, burst limit and puncture resistance.

7. The device of claim 18, wherein said at least two layers are implemented as three layers of material, and wherein spaced apart connection regions between a first of said layers and a second of said layers are interspaced between spaced apart connection regions between said second of said layers and a third of said layers.

8. The device of claim 18, wherein an inward-facing layer of said at least two layers is implemented with preformed inflatable pockets between said connection regions.

9. The device of claim 1, wherein said bag assumes a compact state in which a first region of said at least one wall is adjacent to a second region of said at least one wall, and wherein said spaced-apart connection regions define elongated inflatable deployment cavities extending within said first and second regions such that, on inflation of said at least one inflatable volume, said inflatable deployment cavities press against each other so as to tend to force apart said first and second regions, thereby opening up said internal volume of said containment compartment.

10. The device of claim 1, wherein said at least one wall is configured to form at least two of said inflatable volumes, said at least two inflatable volumes being independently inflatable.

11. The device of claim 1, wherein said connection regions are deployed so as to define elongated inflatable boundary cavities extending so as to circumscribe a majority of said opening such that, on inflation of said at least one inflatable volume, said inflatable boundary cavities tend to open said opening.

12. The device of claim 1, wherein said connection regions are deployed such that, on inflation of said at least one inflatable volume, at least part of said at least one wall presents an array of inflated bulges in facing relation to said containment volume, and further comprising printed markings disposed within a central region of a plurality of said bulges.

13. The device of claim 18, wherein said at least one wall comprises two walls interconnected at a peripheral seal such that said bag is formed from at least four of said layers in overlying relation.

14. The device of claim 1, wherein said bag further comprises at least one loop element deployed on an external surface of the bag, said loop element being located to facilitate rolling of said bag by insertion of an instrument through said at least one loop element and rotation of the instrument.

15. The device of claim 1, further comprising a pressure indicator in fluid interconnection with said inflatable volume, said pressure indicator being configured to generate a visible and/or audible indication when a pressure within said inflatable volume decreases or falls below a reference pressure value.

16. The device of claim 1, wherein said bag further comprises at least one instrument insertion branch implemented as a flexible access tube communicating with said containment compartment and allowing instrument access via an incision in a direction angularly spaced from said opening of said bag.

17. The device of claim 1, wherein said containment compartment comprises an elongated containment compartment.

18. The device of claim 1, wherein said one or more walls comprising at least two layers defining said at least one inflatable volume.

41. A method for surgical removal of tissue from a body, the method comprising:

introducing the device of claim 1 into a body cavity through an incision or a body orifice;

inflating the inflatable volume with a fluid;

inserting through said opening into the bag a tissue to be removed from the body;

reducing said tissue located within said bag;

deflating said device while said reduced tissue is within the bag;

removing said device from said body through said incision or said body orifice.

42. The method of claim 41, wherein said reducing comprises reducing said tissue located within said bag while said body cavity is insufflated.

19-40. -40. (canceled)