Abstract: Embodiments of the disclosure include methods and systems for attaching an articulation section. In an embodiment, a medical instrument includes a first tubular member including a first end. The medical instrument also includes a second tubular member including a first end. The second tubular member includes a plurality of layers including an inner layer and a first layer including a fluorinated material. The inner layer includes a first section disposed under the first layer and a second section extending out from under the first layer. A portion of the first tubular member overlaps and is bonded to at least a portion of the second section of the inner layer of the second tubular member.

Abstract: Optical long-path gas monitoring apparatus (2) comprising means (4) for providing a radiation beam, a modulator (10) for modulating the wavelength of the radiation beam such as to produce amplitude modulation of the beam in the presence of the gas being monitored, a radiation detector (12) for conversion of the radiation beam into an electrical signal, and a signal processor (PSD 1,PSD 2) for demodulating the electrical signal to provide a signal dependent upon the gas.