Abstract: A flow metering insert (10) for a drip chamber (50) is provided that is suitable for use in intravenous administration. The insert comprises: a primary liquid flow channel with an inlet, an outlet, and a flow-resistant passage between the inlet and the outlet; and a flow indicating channel in communication with the primary liquid flow channel between the inlet and the flow-resistant passage. The flow-resistant passage provides a resistance to liquid flow such that liquid is forced into the flow indicating channel and reaches a height proportional to the rate of liquid flow through the primary liquid flow channel. The flow-resistant passage and the flow indicating channel are at least partially defined by one or more first recesses and/or channels in the insert such that the flow-resistant passage and the flow indicating channel are formed between the insert and a wall of the drip chamber when the insert is inserted into the drip chamber.

Abstract: A flow meter for intravenous liquids comprising a vertical inlet passage (2), a parallel indicating chamber (9), a ‘U’ shaped flow-resistant liquid passage (6), and an exit chamber (11). Liquid to be dispensed enters the inlet passage (2) via inlet (5) and moves down the passage to a junction with both the ‘U’ shaped flow-resistant passage (6), and the indicator passage. From the junction, the liquid rises up the indicator passage to a height proportional to the flow rate set by an external flow meter, and also through the flow resistant passage, which has an outlet (8) that delivers the liquid to the exit chamber (11) and from there to a patient through an outlet (12). The meter may be formed by an assembly of two injection molded components, thus reducing manufacturing costs.

Abstract: A flow meter for intravenous liquids comprising a vertical inlet passage (2), a parallel indicating chamber (9), a ‘U’ shaped flow-resistant liquid passage (6), and an exit chamber (11). Liquid to be dispensed enters the inlet passage (2) via inlet (5) and moves down the passage to a junction with both the ‘U’ shaped flow-resistant passage (6), and the indicator passage. From the junction, the liquid rises up the indicator passage to a height proportional to the flow rate set by an external flow meter, and also through the flow resistant passage, which has an outlet (8) that delivers the liquid to the exit chamber (11) and from there to a patient through an outlet (12). The meter may be formed by an assembly of two injection moulded components, thus reducing manufacturing costs.

Abstract: An inventive set of small devices (‘capo elements’) to mechanically secure a string or strings of a guitar or other fretted stringed instrument at selected fret positions in order to selectively vary the string vibrational length and pitch when the string is plucked. This plurality of capo elements comprises a series of individual rectangular shaped blocks having formed on their upper portions a groove running parallel to the strings so shaped as to secure the string using an interference fit, thus preventing vibration at the distal end of the string and changing its pitch when plucked. Said capo elements feature a lip in the underside of the proximal portion of each capo element, so shaped as to overhang the raised fret, to ensure correct positioning of the capo element, and to secure the string at the same length as would otherwise have been achieved by fretting the string in the regular manner. Said capo elements have an adhesive bottom surface to secure them temporarily to the instrument fretboard.

Abstract: An inventive set of small devices (‘capo elements’) to mechanically secure a string or strings of a guitar or other fretted stringed instrument at selected fret positions in order to selectively vary the string vibrational length and pitch when the string is plucked. This plurality of capo elements comprises a series of individual rectangular shaped blocks having formed on their upper portions a groove running parallel to the strings so shaped as to secure the string using an interference fit, thus preventing vibration at the distal end of the string and changing its pitch when plucked. Said capo elements feature a lip in the underside of the proximal portion of each capo element, so shaped as to overhang the raised fret, to ensure correct positioning of the capo element, and to secure the string at the same length as would otherwise have been achieved by fretting the string in the regular manner. Said capo elements have an adhesive bottom surface to secure them temporarily to the instrument fretboard.