13 Questions 8 Answers 0 Followers
Questions related from Sina Keshavarz
Let’s say a clinician is using a steerable catheter and we want to see the range of velocities the clinician manipulates the steering module with. Are there any references citing this?
18 June 2024 4,331 0 View
Clinicians need to crimp the self-expandable stents into a delivery sheath so they can deploy it at a target site. I want to know if there are any researchers out there discussing the amount and...
18 June 2024 5,331 0 View
I am working with a cable-driven parallel mechanism where the cables pass through anchoring points and connect to an end-effector manipulated by the user. In my setup, these anchoring points are...
15 May 2024 9,501 0 View
I have done a stress-strain test and it looks like the picture attached. However, in here, I only have upper and lower plateau stresses. In Auricchio's model for the superelastic behavior of...
04 April 2024 9,626 3 View
I am working on the measurement of radial forces exerted by self-expandable cardiovascular stents. I need to know how much force can damage the intima of arterial walls? Please refer me to a...
01 April 2024 1,828 5 View
I'm welding (laser welding) a nitinol cylindrical tube to a nitinol flat surface, and I am evaluating three methods for the laser welding configuration (as depicted below): I) using a groove on...
27 March 2024 4,069 6 View
How can I calculate the risk of air embolism or blood leakage when using a microchannel catheter (polyimide, ID ~ 0.015") in femoral arteries, considering the pressure differences and factors like...
08 March 2024 365 0 View
I intend to buy Protein G magnetic beads and since their prices are almost equal (approx. 200$/mL), I was wondering which company produces better beads among ThermoFisher Scientific, Cytivia (GE...
11 October 2020 1,750 6 View
I am using two ball bearings from SKF Stuck (W 603 and W 618). But I do not know their damping coefficients and I do not want to bother testing the bearings to find their damping coefficient. An...
31 October 2018 8,511 4 View
ERROR: A Not-a-Number (NaN) value was computed for the integration error. This problem may be related to wrong values computed by user-written subroutines. Please try using the Adams utility...
10 August 2018 7,966 1 View
I have the equipment needed to make the connections between my atmega32 and my pc. I just don't know how to give data to matlab to design apt PID controller for my device.
27 May 2018 6,254 5 View
I have been reading an article about shape memory alloy actuator design. The martensite stress-strain diagram is modeled into 2 elastic and pseudo-plastic bilinear paths. I have come to some...
22 May 2018 1,523 3 View
I am trying to design a Shape Memory Alloy Actuator and I intend to find the damping coefficient C before fabricating the actuator. Is it possible to find damping coefficient without utilizing any...
23 April 2018 5,911 13 View
