Interventional tool stepper for electromagnetic tracking
A technology of steppers and tools, applied in the field of interventional tool steppers, can solve problems such as EM tracking data distortion, inaccurate guidance, navigation and planning, and negative effects on treatment performance
Active Publication Date: 2016-05-04
KONINKLJIJKE PHILIPS NV
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- Abstract
- Description
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Problems solved by technology
As a result, EM tracking data is spatially distorted, which can lead to inaccuracies in guidance, navigation, and planning, which can have a negative impact on disposition effectiveness
Method used
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[0013] The present invention is premised on the inventor's unexpected discovery that interventional tool steppers with EM-incompatible material components known from the prior art and interventional tool steppers with EM-compatible material components of the present invention Considerable distortion of the EM field by the feeder. At this point, figure 2 Exemplary EM field distortion data for prior art known EM non-compliant steppers and exemplary EM field distortion data for EM compatible steppers of the present invention are illustrated. In particular, EM non-compliant steppers known in the prior art have a material composition comprising ferromagnetic metals or non-ferrous metals (eg aluminum) capable of generating eddy currents in the presence of an EM field. In contrast, the EM-compatible steppers of the present invention have a material composition comprising high-strength, non-EM-distorting biomedical-compatible materials including, but not limited to, Plastics and non...
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An interventional tool stepper (30) employing a frame (31), a carriage (33), an optional gear assembly (32), and an optional grid template(34). The frame (31) is structurally configured to be positioned relative to an anatomical region for holding an interventional tool (40) relative to the anatomical region. The carriage (33) is structurally configured to hold the interventional tool (40) relative to the anatomical region. The gear assembly (32) is structurally configured to translate and / or rotate the carriage (33) relative to the frame (31). The grid template (34) is structurally configured to guide one or more additional interventional tools (41) relative to the anatomical region. The frame (31), the carriage (33), the optional gear assembly (32) and the optional grid template (34) have an electromagnetic-compatible material composition for minimizing any distortion by the interventional tool stepper (30) of an electromagnetic field.
Description
technical field [0001] The present invention generally relates to an interventional tool stepper compatible with electromagnetic ("EM") tracking techniques. In particular, the present invention relates to an interventional tool stepper employing components having an EM compatible material composition to minimize any distortion in the electromagnetic field caused by the interventional tool stepper. Background technique [0002] In general, steppers are used to hold / guide and translate / rotate interventional tool(s) as needed to facilitate interventional procedures (e.g. transperineal biopsy, internal radiation therapy such as permanent radioactive seed implantation , temporary interstitial brachytherapy, etc.). [0003] More specifically, brachytherapy procedures involve the use of steppers to hold and translate / rotate a transrectal ultrasound ("TRUS") probe within a patient. The stepper is also used to hold the grid / template in a fixed position relative to the TRUS probe to...
Claims
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IPC IPC(8): A61B17/34A61B34/20
CPCA61B17/3403A61B2017/3409A61B2017/3411A61B2017/3413A61B90/11A61B2034/2051A61B2090/378A61B34/20
Inventor S·巴拉特E·德赫甘马尔瓦斯特C·M-f·孔S·塞特拉曼D·A·斯坦顿J·克吕克尔
Owner KONINKLJIJKE PHILIPS NV