Finite Element Analysis of a Bare Metal Stent Therapeutic for Aortic Dissection.

Since the endovascular repair for aortic dissection by stent graft still has limitations of the application scope and complications, our group has been developing and evaluating a new stenting function by replacing it with a large self-expandable bare metal stent. In this study, we use finite element analysis to evaluate the remodeling outcomes of the dissected aorta by this new stent. An ideal aortic dissection model was also designed using numerical simulations based on previous animal and in vitro experiments, and then a 32mm bare metal stent was deployed at the location of the lesion.

A Novel Direct Puncture Cannulation Blood Pump Support System: in Vivo Experimental Proof of Concept for a Therapeutic Approach with Cardiac Arrest.

The rate of out-of-hospital cardiac arrest is increasing according to the changes in the proportion of ages in super-aged society. We developed a novel transcutaneous cannulation-type mechanical circulatory system for an alternative therapeutic approach to cardiac arrest using a small centrifugal blood pump. We proposed a transcutaneous mechanical circulatory support capable of rapid installation and quick start of circulatory support for recovery after cardiac arrest by left ventricular direct puncture using the Seldinger technique.

Development and Preliminary Evaluation of a Short-Term Direct Left Ventricular Puncture Type Compact Percutaneous Blood Pump.

Mechanical circulatory support (MCS) devices play a quintessential role in providing hemodynamic support to heart failure patients. The development of short-term compact percutaneous MCS devices which are ideal for emergency acute heart failure applications is one of the promising advances in MCS technologies. This study presents the design and preliminary performance evaluation of a compact percutaneous centrifugal blood pump which is potentially ideal for the quick provision of left ventricular support during emergency cardiac arrest.

A roller scanning type prostate palpation sensor system using a cantilever beam type force measurement.

Palpation has been used for centuries in medicine as a screening and diagnosis modality for a number of pathological conditions. However, this technique is subjective since palpation sensitivity depends on the skill and experience of a medical examiner. An objective approach to acquire quantitative tactile information is needed.

A cable driven robotic palpation system with contact force sensing based on cable tension observation.

Background: Prostate Cancer screening based on manual palpation is subjective. Robotic palpation systems can objectively acquire stiffness conditions of the prostate.

Methods: A 2DoF cable driven robotic system for prostate palpation is proposed.

Development of a tendon driven robotic probe for prostate palpation.

Palpation is a clinical diagnosis method utilized by physicians to acquire valuable information about the pathological condition of an organ using the sense of touch. This method, however, is subjective. The accuracy depends on the physician's experience and skill.