Tissue extraction devices and related methods

Patent metadata

Field	Value
Publication number	US-2022008091-A1
Application number	US-202117392954-A
Country	US
Kind code	A1
Filing date	Aug 3, 2021
Priority date	Nov 13, 2015
Publication date	Jan 13, 2022
Grant date	—

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.

First claim

What is claimed is:

1 . A tissue extraction device, comprising:
a bag having an interior; at least one cutting element extending along an interior surface of the bag, wherein the at least one cutting element includes at least one strand, and a cutting member coupled to the at least one strand, wherein the cutting member includes at least one cutting edge to cut tissue as the cutting member is drawn across tissue.

2 . The tissue extraction device of claim 1 , wherein the cutting member includes a plurality of cutting edges arranged in a chain.

3 . The tissue extraction device of claim 2 , wherein at least one of the cutting edges is curved.

4 . The tissue extraction device of claim 3 , wherein said at least one curved cutting edge is convex.

5 . The tissue extraction device of claim 1 , wherein the device includes a plurality of singular cutting elements that are overlapped with other to facilitate using the cutting elements individually in a predetermined order.

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

7 . The tissue extraction device of claim 1 , wherein the at least one cutting edge is linear.

8 . The tissue extraction device of claim 1 , wherein the at least one cutting element defines a plurality of cutting edges along the strand.

9 . The tissue extraction device of claim 1 , wherein each edge of the plurality of edges is discrete, separated from all other edges of the plurality of edges by a respective gap.

10 . The tissue extraction device of claim 1 , further comprising a channel coupled to the bag, wherein the at least one cutting element extends through the channel.

11 . The tissue extraction device of claim 1 , wherein the at least one cutting element includes eyelets.

12 . The tissue extraction device of claim 11 , further including handles, wherein the handles are removably coupled to the eyelets.

13 . The tissue extraction device of claim 1 , further comprising a wound retractor surrounding the cutting element.

14 . The tissue extraction device of claim 1 , wherein the bag includes an inner layer and an outer layer.

Assignees

• Brigham & Womens Hospital Inc
• Freyja Healthcare Llc

Inventors

• Bonadio Frank
• Einarsson Jon I
• Smith Jordan
• Isakov Alexander
• Pradhan Debasish
• Solkar Athar Anwar
• Patankar Mangesh Ratnakar
• Katre Nikhil
• Chavan Tejas

Classifications

• A61B2018/144

  Wire · CPC title

• 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

• A61B2017/00407

  Ratchet means · CPC title

• A61B2017/320064

  with tissue or sample retaining means · CPC title

• A61B17/320068

  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) · CPC title