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Timothy A. Brumfiel

7 accepted papers

2025

Model-Based Parameter Selection for a Steerable Continuum Robot - Applications to Bronchoalveolar Lavage (BAL)

RA-L 2025

Bronchoalveolar lavage (BAL) is a minimally invasive procedure for diagnosing lung infections and diseases. However, navigating tortuous lung anatomy to the distal branches of the bronchoalveolar tree for adequate sampling using BAL remains challenging. Continuum robots have been used to improve the

Cited by 3SourceScholar
2024

Design and Modeling of a Compact Spooling Mechanism for the COAST Guidewire Robot

RA-L 2024

The treatment of many intravascular procedures begins with a clinician manually placing a guidewire to the target lesion to aid in placing other devices. Manually steering the guidewire is challenging due to the lack of direct tip control and the high tortuosity of vessel structures, potentially res

Cited by 2SourceScholar
2023

Model-Based Design of the COAST Guidewire Robot for Large Deflection

RA-L 2023

Minimally invasive endovascular procedures involve the manual placement of a guidewire, which is made difficult by vascular tortuosity and the lack of precise tip control. Steerable guidewire systems have been developed with tendon-driven, magnetic, and concentric tube actuation strategies to enable

Cited by 11SourceScholar
2023

Simultaneous Shape and Tip Force Sensing for the COAST Guidewire Robot

RA-L 2023

Placement of catheters in minimally invasive cardiovascular procedures is preceded by navigating to the target lesion with a guidewire. Traversing through tortuous vascular pathways can be challenging without precise tip control, potentially resulting in the damage or perforation of blood vessels. T

Cited by 26SourceScholar
2022

Design and Modeling of a Compact Advancement Mechanism for a Modified COAST Guidewire Robot

ICRA 2022poster

Peripheral vascular intervention remains a challenging procedure mainly due to the tortuosity of the vessels needing to be traversed by guidewires and catheters. In addition, handling long guidewires while navigating tortuous vasculature requires extensive time and skill from the surgeon. In this wo…

Cited by 9SourceScholar
2022

Fluoroscopic Image-Based 3-D Environment Reconstruction and Automated Path Planning for a Robotically Steerable Guidewire

RA-L 2022

Cardiovascular diseases are the leading cause of death globally and surgical treatments for these often begin with the manual placement of a long compliant wire, called a guidewire, through different vasculature. To improve procedure outcomes and reduce radiation exposure, we propose steps towards a

Cited by 13SourceScholar