Patent ID: 11951305
Assignee: SYNERGIA MEDICAL
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A kit-of-parts for medical visualization of a subject patient's central nervous system, the kit-of-parts comprising:
an active implantable medical device (AIMD) for medical visualization of the central nervous system using magnetic resonance imaging (MRI) technology including functional magnetic resonance imaging (fMRI), the AIMD (1) comprising:
an encapsulation unit (5) defining an inner space (Vi) sealingly separated from an outer environment by a set of walls defined by an inner surface defining the boundaries of the inner space, wherein the set of walls of the encapsulation unit are made of a non-metallic material, wherein the inner space contains:
an implantable source of communication light (20Li) and an implantable communication photodetector (20Pi) facing a portion of the set of walls having a given transmittance to wavelength selected within a range of between 380 nm and 5 μm for optical communication with an exterior of the subject patient's body, and
an electronic circuit (5e) for controlling the implantable source of communication light (20Li) and the implantable communication photodetector (20Pi), thus ensuring communication with the exterior of the subject patient's body;

an external processing unit (100) comprising a user interface configured for entering parameters and commands, and for displaying information;, an external communication unit (102) in communication with the external processing unit (100) and comprising an external source of communication light (20Le), an external photodetector (20Pe), and an electronic circuit (102e) configured for:
controlling the external source of communication light to emit signals representative of the parameters and commands entered in the external processing unit (100) and received by the implantable communication photodetector (20Pi), and
transferring to the external processing unit (100) information representative of optical communication signals emitted by the implantable source of communication light (20Li) and received by the external photodetector (20Pe); and
an optical communication lead (104) comprising an optical fibre (1040 usable with the medical visualization by the MRI technique including the fMRI technique for establishing an optical communication between,
the implantable source of communication light (20Li) of the AIMD (1) and the external communication photodetector (20Pe) of the external communication unit (102), and
the external source of communication light (20Le) of the external communication unit (102), and the implantable photodetector (20Pi) of the AIMD (1),
thus allowing remote optical communication between the external processing unit (100) and the AIMD;
wherein the AIMD further comprises:
at least one of a main source of light emission (10L) of a given wavelength range between 380 nm and 5 μm, or an implantable sensing photodetector (10P), either or both being contained in the inner space (Vi) and facing a second portion of the set of walls forming a window having transmittance to the wavelength range, wherein the main source of light emission (10L) is configured for sending pulses of light energy according to defined parameters, and wherein the implantable sensing photodetector (10P) is configured for receiving optical signals;
a tissue interaction unit (6) separate from the encapsulation unit, and configured for interacting with a tissue of the subject patient;
an energy transfer lead (4) comprising an optical fibre having a proximal end coupled to the encapsulation unit (5) and facing the window of the encapsulation unit in alignment with at least one of the main source of light emission (10L) or with the implantable sensing photodetector (10P), and a distal end coupled to the tissue interaction unit, the energy transfer lead comprising no electric conductive wire; and, wherein the electronic circuit (5e) is configured for controlling the implantable implantable source of communication light (20Li), the implantable communication photodetector (20Pi), the main source of light emission (10L), and the implantable sensing photodetector (10P).