US 12,201,321 B2
Access devices, treatment devices, and kits useful for performing treatment under magnetic resonance imaging and related methods
David Gross, Lafayette, IN (US); Neal Fearnot, West Lafayette, IN (US); Sean D. Chambers, Bloomington, IN (US); Eric Brandner, West Lafayette, IN (US); Ram H. Paul, Jr., Bloomington, IN (US); Gary L. Neff, Bloomington, IN (US); and Creasy Clauser Huntsman, Lafayette, IN (US)
Assigned to Cook Medical Technologies LLC, Bloomington, IN (US); and Muffin Incorporated, West Lafayette, IN (US)
Filed by Cook Medical Technologies LLC, Bloomington, IN (US)
Filed on Jan. 11, 2022, as Appl. No. 17/573,104.
Claims priority of provisional application 63/135,966, filed on Jan. 11, 2021.
Prior Publication US 2022/0218392 A1, Jul. 14, 2022
Int. Cl. A61B 17/34 (2006.01); A61B 5/055 (2006.01); A61B 10/04 (2006.01); A61B 17/32 (2006.01); A61B 34/20 (2016.01); A61B 90/00 (2016.01); G01R 33/563 (2006.01)
CPC A61B 17/3423 (2013.01) [A61B 5/055 (2013.01); A61B 10/04 (2013.01); A61B 17/320016 (2013.01); A61B 34/20 (2016.02); G01R 33/56375 (2013.01); A61B 2034/2051 (2016.02); A61B 2090/3954 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A method of performing treatment under magnetic resonance imaging comprising:
positioning a patient within a magnetic resonance scanner;
scanning a first portion of the patient using the magnetic resonance scanner;
obtaining a magnetic resonance image of the first portion of the patient;
identifying a tissue that has predefined characteristics using the magnetic resonance image;
while the patient is positioned within the magnetic resonance scanner used to scan the first portion of the patient, advancing a medical device into a bodily passage and to the tissue while scanning a second portion of the patient that includes the medical device using the magnetic resonance scanner;
obtaining a magnetic resonance image of the second portion of the patient that includes the medical device;
confirming the position of the medical device within the bodily passage;
advancing a biopsy device through the medical device and to the tissue while scanning a third portion of the patient that includes the biopsy device using the magnetic resonance scanner;
obtaining a magnetic resonance image of the third portion of the patient that includes the biopsy device;
confirming the position of the biopsy device within the bodily passage;
collecting a tissue sample from the tissue using the biopsy device while scanning a fourth portion of the patient that includes the biopsy device and the tissue using the magnetic resonance scanner;
obtaining a magnetic resonance image of the fourth portion of the patient that includes the biopsy device;
confirming the tissue sample has been collected;
withdrawing the biopsy device and the tissue sample through the medical device;
determining whether the tissue sample meets a predefined criterion;
if the tissue sample meets the predefined criterion, advancing an anchor member through the medical device through which the biopsy device was advanced and to the tissue while the patient remains positioned within the magnetic resonance scanner;
securing the anchor member to the tissue to retain the position of the medical device relative to the tissue;
advancing an access device over the medical device and toward the tissue;
removing the anchor member from the tissue;
withdrawing the anchor member from the bodily passage;
withdrawing the medical device from the bodily passage;
advancing a treatment device through the access device and to the tissue;
manipulating the tissue using the treatment device;
withdrawing the treatment device from the access device;
withdrawing the access device from the bodily passage;
wherein the treatment device comprises:
an elongate member moveable between a first, unexpanded configuration and a second, expanded configuration, the elongate member having a lengthwise axis, a proximal end, a distal end, an adaptor, and a plurality of tubular members attached to the adaptor, the adaptor disposed on the proximal end of the elongate member, having a port, and defining a lumen, each tubular member of the plurality of tubular members having a tubular member proximal end, a tubular member distal end, and a tubular member main body that defines a tubular member lumen and a predefined curve; and
a tubular member partially disposed over the elongate member.