Abstract:
Medical device systems and methods for making and using medical device systems are disclosed. An example medical device system may include a guidewire. A pressure sensor assembly may be disposed within the guidewire. The pressure sensor assembly may include a pressure sensor and a first optical fiber coupled to the pressure sensor. The first optical fiber may have a first outer diameter. A cable may be coupled to the guidewire. The cable may include a second optical fiber. The second optical fiber may have a second outer diameter greater than the first outer diameter.
Abstract:
A catheter assembly includes an imaging core insertable into a lumen of a sheath of a catheter. The imaging core includes a rotatable driveshaft and a transducer that is coupled to the driveshaft and that rotates with the driveshaft. One or more inlet ports and one or more outlet ports are defined in a distal portion of the sheath. A flow-inducing element is coupled to the driveshaft and rotates with the driveshaft. The flow-inducing element draws fluid into the lumen through the inlet port(s) from the environment external to the sheath and pushes the drawn fluid out of the lumen through the outlet port(s). One of the one or more inlet ports or the one or more outlet ports is disposed proximal to the flow-inducing element and the transducer, and the other of the inlet port(s) or the outlet port(s) is disposed distal to the flow-inducing element and the transducer.