Provided are structurally-reconfigurable, optical metasurfaces constructed by, for example, integrating a plasmonic lattice array in the gap between a pair of microbodies that serve to locally amplify the strain created on an elastomeric substrate by an external mechanical stimulus. The spatial arrangement and therefore the optical response of the plasmonic lattice array is reversible.

An optical fiber (F2) having a length defining a longitudinal direction is disclosed. The optical fiber (F2) has at least two fiber cores (C21, C22) extending along the length of the optical fiber (F2), and an optical coupling member (OCM2) is arranged at a proximal optical fiber end of the optical fiber (F2). The coupling member (OCM2) has a first distal end face (OF2) optically connected to the proximal optical fiber end, and a proximal second end face (IF2) spaced apart from the first distal end face (OF2) in the longitudinal direction of the optical fiber (F2), the optical coupling member (OCM2) being configured to couple light into each of the fiber cores (C21, C22, C23).

Disclosed herein is a system and method directed to detecting placement of a medical device within a patient body, where the system includes a medical device including an optical fiber having core fibers, each of the one or more core fibers including a plurality of sensors each configured to (i) reflect a light signal having an altered characteristic due to strain experienced by the optical fiber. The system further includes logic configured to cause operations of providing an incident light signal to the optical fiber, receiving reflected light signals of different spectral widths of the incident light from the sensors, processing the reflected light signals to detect fluctuations of a portion of the optical fiber, and determining a location of the portion of the optical fiber based on the detected fluctuations. In some instances, the detected fluctuations are caused by anatomical movement of the patient body.

A method and apparatus that utilizes a force-time integral for real time estimation of steam pop in catheter-based ablation systems. The apparatus measures the force exerted by a contact ablation probe on a target tissue and an energization parameter delivered to the ablation probe. The exerted force and energization parameter can be utilized to provide an estimation of the probability of steam pop. In one embodiment, the force and energization metrics can be used as feedback to establish a desired contact force and energization level combination to prevent steam popping.

A medical system comprising a medical instrument including at least one elongated actuation member used to move at least a portion of the medical instrument, a motor coupled to the medical instrument and used to operate the at least one elongated actuation member, and a control system in communication with the medical instrument and with the motor. The control system is configured to receive at least one input from the medical instrument and determine a force on a tip of the medical instrument by applying the at least one input to a lumped model of the medical instrument. The lumped model comprises a mass of the motor and a spring parameter coupling the mass of the motor to a mass of the portion of the medical instrument.

An optical fiber blood pressure continuous detection wristband, comprising: an optical fiber sensing assembly module, the optical fiber sensing assembly module includes a sensing band and an optical fiber configured to extend along the sensing band and form a sensing area to sense a pulse wave; the sensing band includes an inner layer configured to be placed adjacent to the wrist to be detected, and the outer surface of the inner layer is abutted against the optical fiber; an outer layer, the inner surface of the outer layer is provided with a first concave-convex structure with a corrugate shaped, the first concave-convex structure being abutted against the optical fiber; wherein a active space is formed between the sensing band and the inner watchband and configured for the radial artery to beat; a calibration assembly configured to continuously calibrate blood pressure values; and a signal process assembly.

In one embodiment, an anatomical implant template has a template body having opposed first and second terminal ends. The template body bends so as to change the body from a first configuration, whereby the body extends from the first terminal end to the second terminal end along a first path, to a second configuration, whereby the body extends from the first terminal end to the second terminal end along a second path, different from the first path, the second path conforming more closely to the curvature of the at least one anatomical body. The body supports at least one device that outputs at least one signal from which a shape of the body in the second configuration can be ascertained. The anatomical implant template can further communicate the at least one signal to a computing device that generates signals for bending an anatomical implant.

A fiber optic tracking sensor includes at least three optical fibers, each optical fiber having a plurality of fiber optic sensors along a length of a sensing portion of the sensor. A shape-memory member is coupled to the three optical fibers and provides support to the sensor. The at least three optical fibers are arranged in a spaced apart relationship, each offset from a central longitudinal axis of the sensor.

Disclosed herein are systems and methods for providing tracking information of a medical instrument using optical fiber technology in combination with magnetic sensing technology. The medical device includes an optical fiber. The medical device further includes magnetic elements. A magnet field sensor can be configured to detect magnetic fields defined by the magnetic elements, and to provide electrical signals in accordance with the detection of the magnetic fields to a console. The operations of the console include (i) processing the reflected light signals to determine a physical state of the optical fiber, (ii) processing the electrical signals to determine the positions of the magnetic elements, and (iii) combining the physical state of the medical device with the positions of the one or more of the plurality of magnetic elements to determine at least one of a position, a shape, and an orientation of the medical device within the patient body.

The present invention relates to a contactless intelligent monitor, including: a light source, a coupler, a concave-convex noise reduction unit, a first photodetector, a second photodetector, an MCU and a terminal; the light source, coupler and concave-convex noise reduction unit are connected in sequence; the output of the concave-convex noise reduction unit is connected to the MCU through the first photodetector and the second photodetector respectively; the MCU is connected to the terminal through a communication module. The present invention can effectively reduce the interference and false alarm caused by noises in the measurement process.