System for implanting in bone tissue
AssigneeKoninklijke Philips N.V.
InventorsDrazenko BABIC, Thirukumaran Thangaraj KANAGASABAPATHI, Susanne Maaike VALSTER, Bernardus Hendrikus Wilhelmus HENDRIKS
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Abstract
The invention relates a system for implanting an implantable device in bone tissue, a processing unit for such system, a method of implanting an implantable device and a method of providing information for an implanting of an implantable device. In view of the finding that a fat content in cancellous bone is higher than a fat content in compact bone, the lipids fraction, which can be determined by optical means, e.g. spectroscopy, can be used to determine correct screw placement in healthy bone.
Claims14
A system for implanting an implantable device in bone tissue, the implantable device having an internal chamber for receiving an optical transmission device, the system comprising:
- a light detector configured to be coupled to an optical transmission device received in the internal chamber of the implantable device so as to receive light reflected by and/or scattered in tissue in front of the implantable device and detect at least a part of the spectrum thereof,
- a calculation unit for calculating a parameter indicative for a fat content in the tissue from the detected spectrum, and
- a navigation unit for comparing the calculated parameter indicative for the fat content with a predetermined value and outputting a signal indicative of a result of the comparing.
A processing unit for a system for implanting an implantable device in bone tissue, comprising:
- a calculation unit for calculating a parameter indicative for a fat content in the tissue from a detected spectrum of light reflected by and/or scattered in tissue, and
- a navigation unit for comparing the calculated parameter indicative for the fat content with a predetermined value and outputting a signal indicative of a result of the comparing.
A method of assisting in implanting an implantable device, comprising the steps:
- providing an optical waveguide in an internal chamber of the implantable device, the optical waveguide being arranged for transmitting light from a proximal end of the optical transmission device to a distal end to illuminate tissue and for transmitting light reflected by and/or scattered in the tissue from the distal end of the optical transmission device to the proximal end,
- transmitting light from a proximal end of the optical transmission device to a distal end to illuminate tissue,
- transmitting light reflected by and/or scattered in the tissue from the distal end of the optical transmission device to the proximal end,
- receiving the light reflected by and/or scattered in the tissue and detecting at least a part of the spectrum thereof,
- calculating a parameter indicative for a fat content in the tissue from the detected spectrum,
- comparing the calculated parameter indicative for the fat content with a predetermined value, and
- outputting a signal indicative of a result of the comparing.
A method of providing information for an implanting of an implantable device, comprising the steps:
- detecting at least a part of the spectrum of light reflected by and/or scattered in the tissue,
- calculating a parameter indicative for a fat content in the tissue from the detected spectrum,
- comparing the calculated parameter indicative for the fat content with a predetermined value, and
- outputting a signal indicative of a result of the comparing.
Dependencies are inferred from the claim text.