# US 11,304,685 B2 · Lung biopsy devices, systems and methods for locating and biopsying an object

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- Number: US 11,304,685 B2
- Document ID: US11304685B2
- Status: Granted
- Kind: B2
- Application number: 16/026,410
- Filed: 2018-07-03
- Published: 2019-01-10
- Granted: 2022-04-19
- Earliest claimed: 2017-07-05
- Assignees: Regents of the University of Minnesota
- Applicants: Regents of the University of Minnesota
- Inventors: Michael A. Greminger; Anastasia Zink; Brian Krohn; Amit Goyal; Roy Joseph Cho; H. Erhan Dincer; Felix Zamora; Gills Fai; Sarah Ostlie
- Web page: https://patentgrep.com/patent/US11304685B2

## CPC

- A61B 10/0233: {Pointed or sharp biopsy instruments}
- A61B 1/000094: {extracting biological structures}
- A61B 1/00087: {Tools (A61B17/00234 takes precedence)}
- A61B 1/00098: {Deflecting means for inserted tools}
- A61B 1/00135: {Oversleeves mounted on the endoscope prior to insertion}
- A61B 1/0056: {the insertion parts being asymmetric, e.g. for unilateral bending mechanisms}
- A61B 1/0057: {Constructional details of force transmission elements, e.g. control wires}
- A61B 1/05: characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B 1/0676: {at distal tip of an endoscope}
- A61B 1/0684: {using light emitting diodes [LED]}
- A61B 1/2676: {Bronchoscopes}
- A61B 8/12: in body cavities or body tracts, e.g. by using catheters
- A61B 1/00009: {of image signals during a use of endoscope}
- A61B 1/00131: {Accessories for endoscopes}
- A61B 2010/045: {Needles (pointed biopsy devices with vacuum aspiration A61B10/0283)}
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)

## Abstract

According to embodiments, a substantially coaxial arrangement of a camera, a light source, and an ultrasonic sensor can be positioned in an housing of a system that can be deployed from the tool port of a standard bronchoscope. Illumination from the light source facilitates positioning of the system by an operator using information from the camera. The ultrasonic system can determine when an object to be biopsied is adjacent to a biopsy needle.

## Claims

### Claim 1

A lung biopsy system comprising:
a housing extending from a proximal end to a distal end;
a first tube configured to enable deployment of a biopsy needle and extending from the proximal end of the housing to a first aperture in the housing before the distal end;
an ultrasonic system configured to be arranged in the housing at the distal end;
a camera configured to be arranged in the housing proximate the distal end to obtain optical data relating to a position of the system; and
a light source configured to be arranged in the housing proximate the camera to produce illumination for the camera,
wherein the camera, the light source, the ultrasonic system, and the biopsy needle tube are arranged in order coaxially in the housing from the distal end to the proximal end.

### Claim 2 (depends on 1)

The lung biopsy system of claim 1, wherein the housing is made of a transparent material.

### Claim 3 (depends on 1)

The lung biopsy system of claim 1, further comprising a light guide to route light from the light source to the distal end.

### Claim 4 (depends on 1)

The lung biopsy system of claim 1, further comprising a second tube arranged within the housing opposite the first tube to enable deployment of a biopsy needle and extending from the proximal end to a second aperture in the housing before the distal end.

### Claim 5 (depends on 1)

The lung biopsy system of claim 1, wherein the housing further comprises a plurality of lens-shaped notches formed in an exterior surface of the housing, and wherein the system further comprises a cable configured to be threaded through the lens-shaped notches.

### Claim 6 (depends on 5)

The lung biopsy system of claim 5, wherein the system further comprises a coil spring arranged in the housing adjacent the cable.

### Claim 7 (depends on 1)

The lung biopsy system of claim 1, wherein the first tube is configured to accommodate a biopsy needle comprising a flexible shaft and a steel tip.