Embedded Shape Sensing, Explained
Shape sensing measures the three-dimensional shape of a device continuously from within the device itself.
By embedding a fiber optic sensor along the length of a medical device, the platform captures how the device bends, twists, and moves in real time. This provides continuous, full-length device awareness without relying on external tracking or intermittent imaging.
This data forms the foundation for navigation, procedural guidance, and future intelligent system behavior.
How Shape Sensing Works
The Shape Sensing Platform uses fiber optic shape sensing to measure device shape along its entire length in real time.
A thin optical fiber is embedded within the device. Light is transmitted through the fiber and reflected back as the device bends, twists, and moves. Subtle changes in the reflected signal correspond to strain and curvature along the fiber.
These signals are processed by the system hardware and software to continuously reconstruct the full three-dimensional shape of the device, providing real-time spatial awareness from inside the device.
This approach enables continuous shape measurement without external sensors or line-of-sight imaging.
Platform Architecture
The Shape Sensing Platform is delivered as three tightly integrated layers designed for direct integration into partner devices and systems.
Embedded Sensors
Fiber optic shape sensors embedded within medical devices to capture continuous shape data along the full device length.
System-Level Hardware
System hardware that interrogates the embedded fiber and converts optical signals into real-time shape data.
Software Interfaces
Software and APIs that deliver usable shape information into partner systems, visualizations, and control architectures.
From Sensor to Shape Data
Shape data flows continuously through the platform from sensor to system to software.
The platform is designed to support long procedures, complex device paths, and real-world clinical environments by providing a persistent data stream rather than intermittent measurements.
This architecture supports reliable, repeatable shape reconstruction throughout a procedure.
Technical Capabilities
Platform capabilities vary by configuration and partner implementation. The following reflects supported capabilities of the Shape Sensing Platform.
Capability list
- Full-length three-dimensional shape reconstruction
- Measurement of bending, orientation, and twist
- Continuous shape updates suitable for real-time use
- Low-latency data delivery for system integration
- Compensation for environmental factors such as temperature
Performance
- Update rates and latency depend on system configuration
- Sensor size, sensing length, bend radius, and resolution vary by sensor design and use case
Technical Resources
Additional technical detail is available for teams evaluating integration or conducting technical diligence.
White Papers
- 3D Visualization in Vascular Navigation
- Shape Accuracy in Surgical Applications
- Orientation Accuracy in Surgical Robotics
- Robotic Knee Replacement using Shape Sensing
- Phantom Study Demonstrating Reduced Radiation in Vascular Navigation
- Improved Shape Accuracy in 2nd Generation Shape Sensing System
Detailed technical specifications are available for partners and evaluators.