Device and method for preparing particles for analysis
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Accused Products
Abstract
A device (1) for laying down particles, for example, cells, on a substrate for subsequent examination thereof comprises a porous substrate (117) and delivery means for delivering to the porous substrate (117) a sample of fluid that contains the particles, the delivery means comprising an inlet (6, 7a, 7b, 7c) for the fluid, and a passageway (11) extending along a first direction from the inlet towards the porous substrate (117), the passageway (11) being so arranged that it permits flow of the fluid generally along a first direction towards the substrate (117) whilst further permitting spreading of then fluid in a direction transverse to the first direction.
17 Citations
86 Claims
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1-43. -43. (Cancelled)
- 44. A device for laying down particles on a substrate, comprising a porous substrate and delivery means for delivering to the porous substrate a sample of fluid that contains the particles, the delivery means comprising an inlet for the fluid, and a passageway extending along a first direction from the inlet towards the porous substrate, the passageway being so arranged that it permits flow of the fluid generally along a first direction towards the substrate whilst further permitting spreading of the fluid in a direction transverse to the first direction.
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46. A device for preparation of a layer of particles for subsequent optical examination, comprising a slide member enclosing a flow arrangement which includes a porous substrate at least a planar upper surface of which extends substantially horizontally within and along a portion of the slide member, the flow arrangement further comprising an inlet for a fluid sample that contains the particles, and a passageway extending from said inlet for delivery of the sample onto said upper surface of said porous substrate.
- 82. A method of laying down particles comprising passing a sample of fluid along a substantially horizontal passageway that flares outwardly permitting the flow of fluid so obtained to fall onto an upper face of a porous substrate and draining away from a lower face of the porous substrate residual fluid that has passed therethrough.
Specification