Magnetic Targeting Systems for Endo-Bronchoscope Diagnosis and Intramedullary-Nail Surgery: A Review

Chen, Chin-Chung; Yeh, Pochi; Cheng, Chih-Cheng; Lin, Cheng Hsin; Wong, Tze-Hong; Cheng, Yi‐Ming; Hsu, Wensyang; Chung, Tien-Kan

doi:10.1109/jsen.2021.3059044

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…However, these pose numerous engineering design and application challenges with respect to safe insertion, deployment, and retraction [11]. Magnetic sensing and actuation are applied to a whole range of invasive medicine, from tactile sensors to capsule endoscopy [13][14][15]. Therefore, its introduction to the OR does not involve additional complexities, unless a magnetic resonance imaging suite is considered.…”

Section: Introductionmentioning

confidence: 99%

“…The innovative points of this paper include the systematic assessment of the user requirements arising from MIS magnetic anchoring, along with the experimental design and setup considerations of a novel liver retractor, relying on external magnetic anchor points. Magnetic sensing and actuation are applied to a whole range of invasive medicine, from tactile sensors to capsule endoscopy [13][14][15]. Therefore, its introduction to the OR does not involve additional complexities, unless a magnetic resonance imaging suite is considered.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Anchoring Considerations for Retractors Supporting Manual and Robot-Assisted Minimally Invasive Surgery

2022

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The rise and advancement of minimally invasive surgery (MIS) has significantly improved patient outcomes, yet its technical challenges—such as tissue manipulation and tissue retraction—are not yet overcome. Robotic surgery offers some compensation for the ergonomic challenges, as retraction typically requires an extra robotic arm, which makes the complete system more costly. Our research aimed to explore the potential of rapidly deployable structures for soft tissue actuation and retraction, developing clinical and technical requirements and putting forward a critically evaluated concept design. With systematic measurements, we aimed to assess the load capacities and force tolerance of different magnetic constructions. Experimental and simulation work was conducted on the magnetic coupling technology to investigate the conditions where the clinically required lifting force of 11.25 N could be achieved for liver retraction. Various structure designs were investigated and tested with N52 neodymium magnets to create stable mechanisms for tissue retraction. The simplified design of a new MIS laparoscopic instrument was developed, including a deployable structure connecting the three internal rod magnets with joints and linkages that could act as an actuator for liver retraction. The deployable structure was designed to anchor strings or bands that could facilitate the lifting or sideways folding of the liver creating sufficient workspace for the target upper abdominal procedures. The critical analysis of the project concluded a notable potential of the developed solution for achieving improved liver retraction with minimal tissue damage and minimal distraction of the surgeon from the main focus of the operation, which could be beneficial, in principle, even at robot-assisted procedures.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic Anchoring Considerations for Retractors Supporting Manual and Robot-Assisted Minimally Invasive Surgery

2022

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Design of smart magnetic thin-sheet structure based wireless sensors-array arrangement for intraoral-pressure sensing approach

Kohli,

Hsu,

Chen

et al. 2024

Appl. Phys. A

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During orthodontic treatments, orthodontists want to simultaneously measure different kinds of intraoral pressure of a patient to determine a suitable orthodontic treatment plan for the patient. To achieve this, an intraoral pressure sensors-array with a specific arrangement in the oral cavity is needed. Hence, in this paper, we design a smart magnetic thin-sheet structure based wireless sensors-array arrangement for intraoral-pressure sensing for orthodontics to determine the above suitable treatment plan. In general, the sensors-array consists of multiple sensing modules. Each module consists of two parts: the first part is a transmitting/receiving electromagnet which is connected to a reference electromagnet in a balanced inductance bridge configuration while the second part is a smart magnetic thin-sheet structure based high-permeable sensing diaphragm. A voltage input is applied to the reference electromagnet and transmitting/receiving electromagnet, while the voltage output is measured from the transmitting/receiving electromagnet, respectively (the transmitting/receiving electromagnet can transmit the magnetic flux as well as receive or sense the change of magnetic flux). When the sensing diaphragm (which is placed in proximity to the transmitting/receiving electromagnet) undergoes a displacement, the gap between the sensing diaphragm and transmitting/receiving electromagnet changes. This subsequently changes surrounding magnetic flux, and consequently results in a change in magnetic reluctance between the sensing diaphragm and transmitting/receiving electromagnet. Thus, the voltage output of the transmitting/receiving electromagnet is changed accordingly. Based on this operation principle, furthermore, we use multiple transmitting/receiving electromagnets to form a compact (specifically arranged) sensors-array. The results show that specifically arranged sensors-array can provide measurement results in multiple points in the oral cavity to the orthodontists, as a simplified decision-making reference for the orthodontists to determine the clinical treatment plan for patients.

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An Electroplated Magnetic NiFe Film Based Electromagnetic Targeting for Interlocking-Nail Broken-Bone Surgery

Kohli,

Chai,

Chen

et al. 2023

2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers)

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Magnetic Targeting Systems for Endo-Bronchoscope Diagnosis and Intramedullary-Nail Surgery: A Review

Cited by 7 publications

References 35 publications

Magnetic Anchoring Considerations for Retractors Supporting Manual and Robot-Assisted Minimally Invasive Surgery

Magnetic Anchoring Considerations for Retractors Supporting Manual and Robot-Assisted Minimally Invasive Surgery

Design of smart magnetic thin-sheet structure based wireless sensors-array arrangement for intraoral-pressure sensing approach

An Electroplated Magnetic NiFe Film Based Electromagnetic Targeting for Interlocking-Nail Broken-Bone Surgery

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