Apparatus and method for removing tissue from a body

Patent metadata

Field	Value
Publication number	US-2023023230-A1
Application number	US-202217815071-A
Country	US
Kind code	A1
Filing date	Jul 26, 2022
Priority date	Jul 26, 2021
Publication date	Jan 26, 2023
Grant date	—

Abstract

Disclosed embodiments provide an apparatus and method of removing tissue from a body of a human or non-human animal. The disclosed embodiments includes a tool that may have a cutting edge to drill into tissue. The tool has magnetizable segments, which may be translated or rotated by an applied magnetic field

First claim

1 . An apparatus comprising:
a tool containing at least one magnetizable material, a magnet or coil or electropermanent magnet or arrays of such magnets, coils, or electropermanent magnets, to propel or rotate said tool within a body, wherein the tool can be propelled or drilled into tissue by the magnet or coil or electropermanent magnet or arrays to capture a tissue and the tool can be deformed to release said tissue once outside the body.

2 . The apparatus of claim 1 , wherein the tool also contains at least one non-magnetizable material.

3 . The apparatus of claim 1 , wherein the tool is configured to capture a biopsy specimen.

4 . The apparatus of claim 1 , wherein the tissue is unwanted in the body.

5 . The apparatus of claim 1 , wherein the magnet or coil is part of an electropermanent magnet array that can image the tool and/or body.

6 . The apparatus of claim 1 , wherein the tool deformation is caused by a magnetic field.

7 . The apparatus of claim 1 , wherein the tool is magnetically or optically barcoded.

8 . The apparatus of claim 1 , wherein the tool has at least one edge to facilitate entry into tissue.

9 . The apparatus of claim 1 , wherein the tool has at least one edge to facilitate retention of the tissue in the tool until intended desired release of the tissue.

10 . The apparatus of claim 1 , wherein the tool has an attached tether, which may be flexible, semi-flexible, or rigid, configured to manipulate the tool.

11 . The apparatus of claim 1 , wherein the tool has an outer diameter of less than 0.5 mm.

12 . The apparatus of claim 1 , wherein the tool may be placed near the tissue portion by a catheter.

13 . The apparatus of claim 12 , wherein the catheter contains or is attached to a magnetizable material.

14 . A method of removing tissue from a body, the method comprising:
propelling and/or drilling a tool containing magnetizable and non-magnetizable segments into tissue in the body using magnetic fields, removing the tool from the body, and deforming the tool to release the tissue captured by the tool.

15 . The method of claim 14 , wherein the magnetic fields are applied with at least one electropermanent magnet.

16 . The method of claim 14 , wherein the deformation is realized using magnetic fields.

17 . The method of claim 14 , wherein the deformation of the tool is realized by a force applied to open the tool via a notch formed in the tool.

18 . The method of claim 14 , wherein the tool has at least one edge to facilitate entry into tissue.

19 . The method of claim 14 , wherein the tool has at least one edge to facilitate retention of the tissue in the tool until intended desired release of the tissue.

20 . The method of claim 14 , wherein the tool has an attached tether, which may be flexible, semi-flexible, or rigid, configured to manipulate the tool.

Assignees

• Weinberg Medical Physics Inc

Inventors

• Weinberg Irving N

Classifications

• A61B10/0266 Primary

  means for severing sample · CPC title

• A61B34/73 Primary

  Manipulators for magnetic surgery · CPC title

• A61B2034/2051

  Electromagnetic tracking systems · CPC title

• A61B17/3205

  Excision instruments · CPC title

• A61B90/96

  using barcodes · CPC title