The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 20, 2018

Filed:

Sep. 14, 2015
Applicant:

The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);

Inventors:

Daniel Kraft, Stanford, CA (US);

James Hole, Mosman, AU;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 25/00 (2006.01); A61B 17/16 (2006.01); A61M 3/02 (2006.01); A61B 10/02 (2006.01); A61B 17/22 (2006.01); A61B 17/32 (2006.01); A61B 17/34 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
A61M 25/0082 (2013.01); A61B 10/025 (2013.01); A61B 17/1615 (2013.01); A61M 3/0279 (2013.01); A61B 10/0283 (2013.01); A61B 17/2202 (2013.01); A61B 17/320068 (2013.01); A61B 17/3415 (2013.01); A61B 17/3423 (2013.01); A61B 17/3472 (2013.01); A61B 2010/0258 (2013.01); A61B 2017/00292 (2013.01); A61B 2017/00309 (2013.01); A61B 2017/320032 (2013.01); A61B 2017/3413 (2013.01); A61B 2090/378 (2016.02); A61M 3/0283 (2013.01); A61M 2202/09 (2013.01); A61M 2202/10 (2013.01); A61M 2210/02 (2013.01);
Abstract

Device and method for rapid extraction of body tissue from an enclosed body cavity. Hollow entry cannula with optional core element provides entry into body tissue space such as bone marrow. Aspiration cannula is inserted through the hollow entry cannula into the body tissue and is manipulated to advance directionally through the body cavity. Optional stylet within the aspiration cannula aids in advancing the aspiration cannula through the body tissue and is removed to facilitate extraction of the body tissue through the aspiration cannula. Inlet openings near distal tip of the aspiration cannula allow tissue aspiration, with negative pressure source at the proximal end of the aspiration cannula providing controlled negative pressure. The aspiration cannula may be withdrawn and its path adjusted for multiple entries through a same entry point, following different paths through the body tissue space for subsequent aspiration of more tissue.


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