Abstract: A wheelchair can comprise a frame and a plurality of wheels rotatably attached to the frame, and a motor coupled to the frame. A power source can be configured to power the motor. A drive shaft can be coupled to the motor. A first sprocket can be coupled to the drive shaft. A second sprocket can be configured to be rotationally fixed to a wheel of the plurality of wheels. A drive belt or chain can extend between the first sprocket and the second sprocket. An input device can be configured to receive an input from an operator and, in response to receiving the input, cause the motor to rotate.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Embodiments include methods and devices for creating an electronic invoice file using a baseline electronic purchase order file. The methods and devices can receive data representing an electronic purchase order file, comprising a plurality of fields of information. The methods and devices can also confirm that the received electronic purchase order file, was received from a valid retail trading partner, the format of the received electronic purchase order file is consistent with the format of the baseline electronic purchase order file, and the fields of the received electronic purchase order file are consistent with the fields in the baseline electronic purchase order file, in a single step, by applying a hashing function to the data representing the baseline electronic purchase order file and received electronic purchase order file. The methods and devices can also create an electronic invoice file, using a plurality of fields from the electronic purchase order file.

Abstract: Improved methods and apparatus for non-invasively assessing one or more parameters associated with fluidic systems such as the circulatory system of a living organism, when such parameters are potentially affected by other concurrent events. In one exemplary embodiment, apparatus and methods for compensating for occlusive events (e.g., pressure cuff inflation) occurring ipsilateral to the location of parameter measurement are disclosed. Upon passive detection of signal degradation resulting from the event, the apparatus selectively enters a “wait state” wherein further processing of the hemodynamic data is suspended until the degrading event subsides. This behavior mitigates any adverse effects the event might have on the accuracy of the representation of the measured hemodynamic parameter generated by the system. In another exemplary embodiment, the measured data is analyzed in order to classify the type of event (e.g.

Abstract: Composite mask apparatus for providing positive pressure airway therapies are disclosed. The composite mask apparatus include an upper body and a lower body. The lower body is secured to a lower portion of the upper body. The upper body supports at least a portion of the lower body. A first branch of the upper body may be secured to a first tube of the lower body and a second branch of the upper body may be secured to a second tube of the lower body. An airway interface may be in fluid communication with a first lumen of the first tube and may also be in fluid communication with a second lumen of a second tube.

Abstract: Improved methods and apparatus for non-invasively assessing one or more parameters associated with fluidic systems such as the circulatory system of a living organism. In a first aspect, an improved method of continuously measuring pressure from a compressible vessel is disclosed, wherein a substantially optimal level of compression for the vessel is achieved and maintained using perturbations (e.g., modulation) of the compression level of the vessel. In one exemplary embodiment, the modulation is conducted according to a pseudo-random binary sequence (PBRS). In a second aspect, an improved apparatus for determining the blood pressure of a living subject is disclosed, the apparatus generally comprising a pressure sensor and associated processor with a computer program defining a plurality of operating states related to the sensed pressure data. Methods for pressure waveform correction and reacquisition, as well as treatment using the present invention, are also disclosed.