Apparatus, system and methodologies for biopsy or removal of tissue or adding material to tissue using a magnetically-actuated capsule

Patent metadata

Field	Value
Publication number	US-2019038370-A1
Application number	US-201816053247-A
Country	US
Kind code	A1
Filing date	Aug 2, 2018
Priority date	Aug 2, 2017
Publication date	Feb 7, 2019
Grant date	—

Abstract

Disclosed embodiments provide a biopsy tool and methodologies for obtain biopsies and/or a tool and methodology that may be used to add material to a subject's tissue.

First claim

What is claimed:

1 . An apparatus comprising:
a capsule containing at least one aperture for removing or adding tissue from or to a subject's body part and also containing at least one magnetizable section, a tube for manipulating the capsule therein and also including at least one aperture; and magnetic field generating means for generating and applying one or more magnetic fields to the subject's body part, wherein the manipulation of the capsule within the tube is performed using the one or more magnetic fields, wherein at least one portion of the magnetic field generating means is external to the subject's body part.

2 . The apparatus of claim 1 , wherein the aperture of the capsule is configured to be manipulated with respect to the tube to facilitate removal of tissue from the subject's body part.

3 . The apparatus of claim 1 , wherein the aperture of the capsule is configured to be manipulated with respect to the tube to facilitate adding tissue to the subject's body part.

4 . The apparatus of claim 1 , wherein air or another gas, fluid, a wire or a spring or a combination of one or more of these elements, is introduced through the tube to facilitate removing tissue from the subject's body part.

5 . The apparatus of claim 1 , wherein air or another gas, fluid, a wire or a spring or a combination of one or more of these elements, is introduced through the tube to facilitate adding tissue, cells, or materials to or within the subject's body part.

6 . The apparatus of claim 1 , wherein air or another gas, fluid or a wire or spring or a combination of one or more of these elements, is introduced through the tube to move the capsule with respect to the tube or with respect to the subject's body part.

7 . The apparatus of claim 1 , wherein the tube includes means for attachment to a surgical or biopsy robot or a mechanical/magnetic/optical tracker.

8 . The apparatus of claim 1 , further comprising means for performing magnetic imaging of the subject's body part, wherein manipulation of the capsule or the tube into or in the subject's body part is performed under imaging guidance provided by the magnetic imaging.

9 . The apparatus of claim 1 , wherein the one or more magnetic fields have transition times that are too small to trigger unwanted side effects in the subject's body part.

10 . A method for removing tissue from a body part or adding material to a subject's body part, the method comprising:
introducing a tube into the subject's body part, wherein the tube includes a capsule containing at least one aperture for removing or adding tissue from or to a subject's body part and also containing at least one magnetizable section, wherein the capsule also includes at least one aperture; and magnetically manipulating the capsule located within the tube within the subject's body part by generating and applying one or more magnetic fields to the subject's body part, wherein the one or more magnetic fields are generated outside and applied to the subject's body part by a system that is at least in part external to the subject's body.

11 . The method of claim 10 , further comprising manipulating the aperture of the capsule with respect to the tube to facilitate removal of tissue from the subject's body part.

12 . The method of claim 10 , further comprising manipulating the aperture of the capsule with respect to the tube to facilitate adding tissue to the subject's body part.

13 . The method of claim 10 , further comprising introducing air or another gas, fluid, a wire or a spring through the tube to facilitate removing tissue from the subject's body part.

14 . The method of claim 10 , further comprising introducing air or another gas, fluid, a wire or a spring through the tube to facilitate adding tissue, cells, or materials to or within the subject's body part.

15 . The method of claim 10 , further comprising introducing air or another gas, fluid, a wire or a spring through the tube to move the capsule with respect to the tube or with respect to the subject's body part.

16 . The method of claim 10 , further comprising attaching the tube includes to a surgical or biopsy robot or a mechanical/magnetic/optical tracker.

17 . The method of claim 10 , wherein manipulation of the capsule or the tube into or in the subject's body part is performed with propulsion applied using dynamic inversion.

18 . The method of claim 10 , further comprising magnetic imaging the subject's body part, wherein manipulation of the capsule or the tube into or in the subject's body part is performed under imaging guidance provided by the magnetic imaging.

19 . The method of claim 10 , wherein the one or more magnetic fields have transition times that are too small to trigger unwanted side effects in the subject's body part.

Assignees

• Weinberg Medical Physics Inc

Inventors

• Weinberg Irving N
• Vohra Amit

Classifications

• A61B2034/2051

  Electromagnetic tracking systems · CPC title

• A61B2562/162

  Capsule shaped sensor housings, e.g. for swallowing or implantation · CPC title

• A61B2034/733

  arranged only on one side of the patient, e.g. under a table · CPC title

• A61B34/73 Primary

  Manipulators for magnetic surgery · CPC title

• A61M25/0127

  Magnetic means; Magnetic markers · CPC title