| Patent application number | Description | Published |
|---|
| 20090201501 | Optical System for a Flow Cytometer - The preferred embodiments of the invention is an optical system for a flow cytometer including a flow channel with an interrogation zone, and an illumination source that impinges the flow channel in the interrogation zone from a particular direction. The optical system preferably includes a lens system and a detection system. The lens system preferably includes multiple lens surfaces arranged around the flow channel and adapted to collect and collimate light from the interrogation zone. The detection system preferably includes multiple detectors adapted to detect light from the lens system. Each detector preferably includes a local filter that independently filters for specific wavelengths. Thus, the user may easily swap the filters in any order to achieve the same detection parameters. | 08-13-2009 |
| 20090260701 | PULSATION ATTENUATOR FOR A FLUIDIC SYSTEM - A pulsation attenuator for a fluidic system with a fluidic pump. The pulsation attenuator includes a fluidic channel, a first fluidic device adapted to attenuate pulsations, and a second fluidic device adapted to attenuate pulsations. Preferably, the first fluidic device includes a first fluidic resistor and a first fluidic capacitor, and the second fluidic device includes a second fluidic resistor and a second fluidic capacitor. Preferably, the first fluidic resistor and second fluidic resistor are resistive channels. Preferably, the first fluidic capacitor and second fluidic capacitor include a membrane that expands and accumulates fluid and then contracts and reintroduces the accumulated fluid into the fluidic channel. | 10-22-2009 |
| 20090293910 | FLUIDIC SYSTEM WITH WASHING CAPABILITIES FOR A FLOW CYTOMETER - A method for cleaning a fluidic system of a flow cytometer having a sheath pump to pump sheath fluid towards an interrogation zone and a waste pump to pump the sheath fluid and a sample fluid as waste fluid from the interrogation zone, wherein the sheath pump and/or the waste pump draw sample fluid into the flow cytometer through a drawtube towards the interrogation zone. The method includes controlling the sheath pump and the waste pump to cooperatively flush a fluid out through the drawtube, thereby cleaning the fluidic system of the flow cytometer. | 12-03-2009 |
| 20100014947 | WELLPLATE HANDLER SYSTEM FOR A FLOW CYTOMETER - A plate handling system for a sampling device with a drawtube that includes a vertical actuation system that adjusts the vertical distance between the drawtube and a sample tray, a horizontal linkage system that positions a sample tray in a horizontal plane, and a drive system that drives the rotational motion of the horizontal linkage system. The horizontal linkage system includes a base arm that rotates about a base joint, and a sample arm that rotates about a sample arm joint on the base arm. | 01-21-2010 |
| 20100118298 | FLOW CELL FOR A FLOW CYTOMETER SYSTEM - The flow cytometer system of the preferred embodiment includes a flow cell body that functions to contain, protect, and align the components of the flow cytometer system; a flow channel, coupled to the flow cell body, that functions to conduct and focus sample fluid through an interrogation zone; and a sample injection probe, removably coupled to the flow cell body, that functions to provide a uniform flow of sample fluid to the flow channel. The flow cytometer system is preferably designed for the flow cytometer field. The flow cytometer system, however, may be alternatively used in any suitable environment and for any suitable reason. | 05-13-2010 |
| 20100319786 | FLOW CYTOMETER SYSTEM WITH UNCLOGGING FEATURE - The fluidic system with an unclogging feature of the preferred embodiment includes a flow channel, a sheath pump to pump sheath fluid from a sheath container into an interrogation zone, and a waste pump to pump waste fluid from the interrogation zone into a waste container. The sheath pump and/or the waste pump draw sample fluid from a sample container into the interrogation zone. The fluidic system also includes a controller to adjust the flow rate of the sample fluid from the sample container into the interrogation zone. The pump and controller cooperate to propagate a pulsation through the flow channel from the pump if the flow channel is clogged. The fluidic system is preferably incorporated into a flow cytometer with a flow cell that includes the interrogation zone. | 12-23-2010 |
| 20110058168 | Optical system for a flow cytometer - An optical system for a flow cytometer having a flow channel with an interrogation zone and an illumination source that impinges the flow channel in the interrogation zone includes a lens system and a detection system. The lens system preferably includes at least two lens surfaces located on opposite sides of the flow channel and configured to collect and collimate light from the interrogation zone. The detection system, configured to detect light from the lens system, preferably includes first and second detectors, a first filter that passes a first wavelength of light and reflects a second wavelength of light, and a second filter that reflects the first wavelength of light and passes the second wavelength of light, wherein the first and second filters are aligned such that light reflected from the first filter passes into the second detector and light reflected from the second filter passes into the first detector. | 03-10-2011 |
