US 12,433,685 B2
Medical probes and methods of use
Michael J. Cima, Winchester, MA (US); Khalil Basil Ramadi, Brookline, MA (US); Erin Byrne Rousseau, Clifton, NY (US); and Max Joseph Cotler, Somerville, MA (US)
Assigned to Massachusetts Institute of Technology, Cambridge, MA (US)
Filed by Massachusetts Institute of Technology, Cambridge, MA (US)
Filed on Nov. 14, 2022, as Appl. No. 17/986,647.
Application 17/986,647 is a division of application No. 16/165,583, filed on Oct. 19, 2018, abandoned.
Claims priority of provisional application 62/574,821, filed on Oct. 20, 2017.
Prior Publication US 2023/0075623 A1, Mar. 9, 2023
Int. Cl. A61B 34/20 (2016.01); A61B 17/34 (2006.01); A61B 34/10 (2016.01); A61B 90/10 (2016.01); A61M 5/158 (2006.01); A61M 25/00 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 17/3403 (2013.01); A61B 17/3417 (2013.01); A61B 90/10 (2016.02); A61M 5/158 (2013.01); A61B 2017/3454 (2013.01); A61B 2034/107 (2016.02); A61M 2025/0042 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of inserting a medical probe into soft tissue, the method comprising:
identifying a target site in the soft tissue;
providing an elongated medical probe comprising a glass microcapillary and having a length from 1 cm to 20 cm and an outer diameter between 10 and 80 μm and comprising a distal end portion having a beveled tip, wherein the beveled tip has a tip angle between 15 degrees and 85 degrees; and
independently steering the distal end portion of the medical probe into the soft tissue a distance of at least 1 cm to reach the target site,
wherein the combination of the outer diameter and the tip angle is selected to produce an asymmetric force on the medical probe upon its linear displacement into the soft tissue to cause the distal end portion of the medical probe to be independently steered to the target site in the soft tissue.