摘要:
An apparatus, system and method for regulating fluid flow are disclosed. The apparatus includes a flow rate sensor and a valve. The flow rate sensor uses images to estimate flow through a drip chamber and then controls the valve based on the estimated flow rate. The valve comprises a rigid housing disposed around the tube in which fluid flow is being controlled. Increasing the pressure in the housing controls the size of the lumen within the tube by deforming the tube, therefore controlling flow through the tube.
摘要:
An endoscope has a pannable camera at the distal end of its insertion shaft, the pannable camera assembly being pivotable to provide a range of a field of view that can be equal to or greater than 180 degrees. A terminal light emitting element may be mounted to the camera assembly in order to illuminate the immediate field of view of the camera sensor regardless of the rotational position of the camera assembly. A fluid-carrying conduit of the insertion section may also be used to house functional components, including the camera assembly, actuation cables, a communications cable connected to the camera sensor, and/or a fiberoptic cable providing light to the light emitting element. A distal section of the endoscope handle may be rotatable relative to a proximal hand-held section of the endo scope handle, a rotary encoder being provided to convert the rotational position of the insertion shaft relative to the handle into a signal for the purpose of image orientation correction by an electronic processor.
摘要:
A medical error reduction system may include a medical error reduction software for use in creating and revising at least one drug library. The software configured to provide one of a plurality of sets of privileges to each of a plurality of sets of users. Each of the plurality of sets of privileges arranged to allocate a degree of software functionality to one of the plurality of sets of users. The degree of software functionality configured to define the ability of a user to alter the at least one drug library. The medical error reduction system may include at least one server. The medical error reduction system may include at least one editor computer each of the at least one editor computer comprising a processor in communication with a display. The at least one editor computer and at least one server may be configured to communicate via a network in a client-server based model. Each of the at least one drug library may be for use in at least one medical device.
摘要:
A medical infusion fluid handling system, such as an APD system, may be arranged to de-cap and connect one or more lines (30) (such as solution lines) with one or more spikes (160) or other connection ports on a fluid handling cassette (24). This feature may reduce a likelihood of contamination since no human interaction is required to de-cap and connect the lines and spikes. For example, an APD system may include a carriage (146) arranged to receive a plurality of solution lines (30) each having a connector end (31a) and a cap (31). The carriage may move along a first direction so as to move the connector ends of the solution lines along the first direction, and a cap stripper (149) may be arranged to engage with caps on the solution lines on the carriage. The cap stripper may move in a second direction transverse to the first direction, as well as to move with the carriage along the first direction.
摘要:
An apparatus for determining the volume of a fluid, the apparatus comprising: a housing containing a first volume (V 1 ) and a second volume (V 2 ) , a printed circuit board (501b) disposed within the housing such that the printed circuit board defines the first volume; wherein the second volume (V 2 ) contains an air region and a fluid region; wherein the printed circuit board includes: an acoustic source (501b); a first microphone (502b) acoustically coupled to the first volume (V 0 ); and a second microphone (503) acoustically coupled to a second volume (V 1 ); and a processor configured to calculate a change in volume of the air region wherein the processor determines an amount of fluid output from the fluid region.
摘要:
A pump, related system, and related method are provided. The pump includes a reservoir, a port, and a plunger. The reservoir delivers a liquid by discharging the liquid through the port coupled to the reservoir. The plunger has a piston coupled to a shaft and is disposed within the reservoir in sliding engagement with an inner surface of the reservoir. The piston defines a liquid side of the reservoir and a non-liquid side of the reservoir whereby movement of the plunger towards the liquid side of the reservoir discharges liquid through the port. The pump also includes a reference-volume assembly and/or a linear position sensor. The reference-volume assembly is coupled to the reservoir at an opposite end of the reservoir relative to the port and includes a reference-volume chamber in acoustic communication with the non-liquid side of the reservoir, a speaker disposed within the reference-volume chamber, and a reference microphone disposed within the reference-volume chamber. The reference-volume assembly and/or linear position sensor may be used to estimate the amount of liquid discharged from the reservoir.
摘要:
A pump, related system, and related method are provided. The pump includes a reservoir, a port, and a plunger. The reservoir delivers a liquid by discharging the liquid through the port coupled to the reservoir. The plunger has a piston coupled to a shaft and is disposed within the reservoir in sliding engagement with an inner surface of the reservoir. The piston defines a liquid side of the reservoir and a non-liquid side of the reservoir whereby movement of the plunger towards the liquid side of the reservoir discharges liquid through the port. The pump also includes a reference-volume assembly and/or a linear position sensor. The reference-volume assembly is coupled to the reservoir at an opposite end of the reservoir relative to the port and includes a reference-volume chamber in acoustic communication with the non-liquid side of the reservoir, a speaker disposed within the reference-volume chamber, and a reference microphone disposed within the reference-volume chamber. The reference-volume assembly and/or linear position sensor may be used to estimate the amount of liquid discharged from the reservoir.
摘要:
There is disclosed herein a pump cassette comprising: a primary reciprocating membrane pump having a pumping chamber with an inlet of the reciprocating membrane pump fluidly connected to a first inlet of the cassette; a mixing chamber having an inlet fluidly connected to an outlet of the reciprocating membrane pump, and an outlet fluidly connected to an outlet of the cassette; a first metering pump having an inlet fluidly connected to a second inlet of the cassette, and an outlet fluidly connected to the inlet of the mixing chamber; and a second metering pump having an inlet fluidly connected to a third inlet of the cassette, and an outlet fluidly connected to the inlet of the reciprocating membrane pump, wherein 1) the pump cassette is arranged to receive a first fluid into the pumping chamber of the primary reciprocating membrane pump via the first inlet of the cassette, and to receive a second fluid via the third inlet of the cassette, the second fluid being pumped by the second metering pump into the pumping chamber of the primary reciprocating membrane pump, 2) the pump cassette is arranged to receive a third fluid via the second inlet of the cassette, the third fluid being pumped by the first metering pump into the mixing chamber, and 3) a pre-determined volume of first fluid and second fluid are mixed in the pumping chamber of the primary reciprocating membrane pump, and then pumped into the mixing chamber to be mixed with a pre-determined volume of third fluid pumped by the first metering pump.
摘要:
Apparatus (10) comprising a patch-sized housing and an active mechanical assembly disposed within the housing, the active mechanical assembly including a mechanical pump and an actuation assembly for operation of the mechanical pump, the actuation assembly including a plurality of actuators, each capable of operating the pump independently of the other actuators so as to provide for redundancy in the event of failure of an actuator.