Sarif Biomedical LLC v. Brainlab, Inc., et al., C.A. No. 13-846-LPS, August 26, 2015.

Stark, C.J.  Claim construction opinion.

The following terms of U.S. patent No. 5,755,275 were construed:

1. microsurgery
2. tool
3. An articulated tool support
4. A reference frame R_p of a patient/patient reference frame R_p
5. A function of the position of a reference frame R_p of a patient in the fixed reference from reference frame R_c
6. Control position and displacements of the tool as a function of control signals originating from a control unit, where the fixed reference frame R_c is independent of the patient reference frame R_p and the image reference frame R_i
7. determine correspondence of a reference frame R_o of the tool with the     patient reference frame R_p and the image reference frame R_i  as a function of the signal from the at least two sensors
8. visualization of position of the tool in the image reference frame R_i
9. means for determining coordinates of the tool in the fixed reference system R_c based on date from the image data base