# US 11,076,875 B2 · Tissue extraction devices and related methods

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- Number: US 11,076,875 B2
- Document ID: US11076875B2
- Status: Granted
- Kind: B2
- Application number: 15/977,251
- Filed: 2018-05-11
- Published: 2018-12-20
- Granted: 2021-08-03
- Earliest claimed: 2015-11-13
- Assignees: The Brigham and Women's Hospital, Inc.
- Applicants: Brigham and Women's Hospital, Inc.; Freyja Healthcare, LLC
- Inventors: Frank Bonadio; Jon I. Einarsson; Jordan Smith; Alexander Isakov; Debasish Pradhan; Athar Anwar Solkar; Mangesh Ratnakar Patankar; Nikhil Katre; Tejas Chavan
- Web page: https://patentgrep.com/patent/US11076875B2

## CPC

- 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)}
- A61B 10/0266: {means for severing sample}
- A61B 17/02: for holding wounds open, e.g. retractors; Tractors
- A61B 17/22031: {Gripping instruments, e.g. forceps, for removing or smashing calculi (A61B17/221 takes precedence)}
- A61B 17/32056: {Surgical snare instruments (for removing or smashing calculi A61B2017/2212; tonsillotomes A61B17/26)}
- A61B 17/320758: {with a rotating cutting instrument, e.g. motor driven (A61B17/320725, A61B17/32075 and A61B17/320783 take precedence; for removing intra-ocular material A61F9/00763; endoscopic rotatable cutting instruments A61B17/32002)}
- A61B 17/3421: {Cannulas}
- A61B 17/0218: {for minimally invasive surgery (A61B17/0281, A61B17/0469, A61B17/12013, A61B17/1285, A61B17/29, A61B17/320016 take precedence)}
- A61B 17/320068: {using mechanical vibrations, e.g. ultrasonic (A61B17/22012 takes precedence; dental tooth drilling devices operated by vibration A61C3/03; removing intra-ocular material using mechanical vibrations A61F9/00745)}
- A61B 17/42: Gynaecological or obstetrical instruments or methods {(ligaturing clamps or clips for the umbilical cord A61B17/122; curettage A61B17/320708)}
- A61B 18/12: by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B 90/37: {Surgical systems with images on a monitor during operation}
- A61B 90/92: coded with colour
- A61B 2017/00287: {Bags for minimally invasive surgery}
- A61B 2017/00398: {using powered actuators, e.g. stepper motors, solenoids}
- A61B 2017/00407: {Ratchet means}
- A61B 2017/00557: {inflatable (A61B2017/22051 takes precedence)}
- A61B 2017/2212: {having a closed distal end, e.g. a loop}
- A61B 2017/2215: {having an open distal end}
- A61B 2017/320004: {abrasive}
- A61B 2017/320024: {Morcellators, e.g. having a hollow cutting tube with an annular cutter for morcellating and removing tissue}
- A61B 2017/32006: {with a cutting strip, band or chain, e.g. like a chainsaw}
- A61B 2017/320064: {with tissue or sample retaining means}
- A61B 2017/320775: {Morcellators, impeller or propeller like means}
- A61B 2017/345: {for introduction into a natural body opening}
- A61B 2018/00285: {Balloons}
- A61B 2018/00601: {Cutting}
- A61B 2018/1407: {Loop}
- A61B 2018/144: {Wire}
- A61M 13/003: {Blowing gases other than for carrying powders, e.g. for inflating, dilating or rinsing}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

In accordance with an aspect of the present disclosure, a tissue extraction device may include a bag having an interior and a plurality of cutting elements extending through the interior of the bag. The cutting elements can have a common end.

## Claims

### Claim 1

A tissue extraction device, comprising:
an inner bag having an interior;
an outer bag disposed about the inner bag;
a plurality of elongate cutters extending through the interior of the inner bag along an inner surface of the inner bag, wherein each of the plurality of elongate cutters includes a strand and at least one cutting element on the strand, wherein the at least one cutting element includes a cutting edge to cut tissue as the cutter is drawn across tissue, wherein each of the plurality of elongate cutters is configured to be used individually from the other cutters to cut through a tissue specimen disposed in the inner bag using a reciprocating sawing motion; and
a rolling retractor ring, wherein a proximal portion of the inner bag is configured to be rolled around the rolling retractor ring to pull the inner bag away from the outer bag and to pull the tissue specimen against the inner surface of the inner bag adjacent the plurality of cutters to facilitate engagement between each cutter of the plurality of cutters and the tissue specimen.

### Claim 2 (depends on 1)

The tissue extraction device of claim 1, wherein the cutting element includes a blade on the strand.

### Claim 3 (depends on 1)

The tissue extraction device of claim 1, further including a layer of material coupled to the inner surface of the inner bag, such that a channel is defined between the layer of material and the interior surface of the inner bag, wherein at least one of the elongate cutters extends through the channel.

### Claim 4 (depends on 1)

The tissue extraction device of claim 1, wherein each of the elongate cutters includes eyelets.

### Claim 5 (depends on 4)

The tissue extraction device of claim 4, wherein each of the elongate cutters further includes handles, and further wherein the handles are removably coupled to the eyelets.

### Claim 6 (depends on 1)

The tissue extraction device of claim 1, wherein the rolling retractor ring includes a ring body defining at least one protrusion to engage a portion of the inner bag.

### Claim 7 (depends on 6)

The tissue extraction device of claim 6, wherein a proximal portion of the inner bag defines one or more holes to receive the at least one protrusion of the rolling retractor ring.

### Claim 8 (depends on 1)

The tissue extraction device of claim 1, further comprising a frame including at least one fastener to couple to and retain the rolling retractor ring in place against the frame after the inner bag has been rolled about the rolling ring a plurality of times.

### Claim 9 (depends on 8)

The tissue extraction device of claim 8, wherein the frame defines a downwardly depending wound protector that in turn defines a central opening therethrough to permit the passage of the cutter therethrough, and at least one retainer to secure the cutter in place on the frame.

### Claim 10 (depends on 1)

The tissue extraction device of claim 1, wherein the rolling retractor ring is configured to permit a user to evert the rolling retractor ring one or more times to induce tension on an inner layer of the inner bag so that the inner layer of the bag pulls a tissue specimen in the inner bag away from the outer layer of the bag and firmly hold onto the tissue specimen in preparation for cutting.

### Claim 11 (depends on 1)

The tissue extraction device of claim 1, further comprising an inner ring that fits within an outer ring, wherein the rolling retractor ring is removably coupled to the outer ring by way of at least one fastener about a circumference of the outer ring.

### Claim 12 (depends on 11)

The tissue extraction device of claim 11, wherein the inner ring is removably coupled to the outer ring by one or more further fasteners.

### Claim 13 (depends on 11)

The tissue extraction device of claim 11, wherein the outer ring includes at least one retractor detent to receive a retractor arm of a retractor.

### Claim 14 (depends on 11)

The tissue extraction device of claim 11, wherein the outer ring includes a plurality of retractor detents, each said retractor detent being configured to receive a retractor arm of a retractor, wherein edges of retractor blades disposed on the retractors overlap one another to cooperatively form an annulus proximate an incision in a patient.

### Claim 15 (depends on 1)

The tissue extraction device of claim 1, wherein each of the plurality of elongate cutters includes a handle that bears indicia indicative of an order of progression for using each cutter.