Recurring Meeting of Cleveland Clinic Core Team
Date: Nov 19, 2013
Time: 10:30 AM EST
Means: In person meeting
Attendees:
- Ahmet Erdemir
- Jason Halloran
- Craig Bennetts
- Snehal Chokhandre
- Robb Colbrunn
- Tara Bonner
Agenda
- Discuss tasks progress.
- Discuss specimen transportation device design.
- Finalize tissue testing equipment purchase.
- Decide tasks for the next meeting.
- Other
Immediate action items
Jason
- Update FEBio feature specifications for upcoming conference call with University of Utah.
Craig
- Update cloud computing specifications for upcoming conference call with Stanford University.
- Get foam samples for specimen transportation device.
Robb and Snehal
- Prepare list of desired features for tissue testing device (including primary and secondary features based on exact tissue testing needs, and pricing).
Jason and Snehal
- Review imaging data and update relevant Wiki pages.
Snehal
- Get MRI machine specifications and knee coil dimensions.
Notes
1. Discuss task progress
- Immediate action items were discussed. Details are provided in the following notes.
- Imaging specifications
- Jason and Snehal conducted a test session at University Hospitals to try some imaging sequences and check the brass marker fixtures for observed imaging artefacts.
- One of the OAI protocols (DESS) were tried along with a T2 proton density protocol
- Implementing the OAI protocol was challenging as the clinical scanners have restrictions on controls.
- One of the UH engineers will try to program the specific protocol offline which can be tried in the next test session.
- The protocol tested was the closest that could be programmed online.
- Every brass piece from the phantom was noticed to be causing some artefact. Delrin or medical grade brass/ stainless steel that can be fixed / screwed into bone might be considered.
- Jason will contact Dr. Winalski for advice on suitable materials.
- Delrin/ phenolic fixtures and metal screws may be used in the worst case.
- Alignment pins have to be metallic.
- If medical grade materials are used they have to be MRI grade too.
- Finalize tissue testing equipment purchase.
- One of the proposed alternatives to tissue testing was to gain access to the existing system at a fixed price for 4 years.
The BioRobotics Core decided that it difficult to compete at the requested price and therefore the team has decided to purchase the testing equipment for the project.
- The maximum budget for the equipment is $45,000 and needs to include all the specifications.
- 3 axis controller (not 3 axis motors), if 6 axis load cell can be bought now it will useful
- Video system sync is important than multi axial load cell currently.
- Minimum machine requirements (quote will be requested based on these): 3 axis controller , 0.5 micrometer resolution (0.1 micrometer resolution is another $4k(for motor)), single axis load cell, camera, fixtures, manual x-y control, bath with heater, additional: multi axis load cell, 0.1 micrometer resolution. (base machine: $34k,camera: $3k). Higher res capability will be preferred over multiaxis load cell for upgrade as capability to apply strains with better accuracy is desirable.
- Robb and Snehal will prepare an itemized list with estimated cost for the minimum desirable machine and the ideal machine.
- The Bose Electroforce test instrument will not work for the project as the stroke is only 2.5 mm.
- The MTS controller box works with any MTS testing machine. If a frame that meets our testing requirements can be bought, we can save a significant amount using the existing controller box.
- Based on the quotes and specifications of all testing machines, one machine will be decided upon in the next meeting.
4. Decide tasks for the next meeting