Filter punch and filter collection system

Details Filter punch and filter collection system Filter punch and filter collection system

1991-07-17

1992-09-15

Raevis, Robert

Measuring and testing

Sampler, sample handling, etc.

Capture device

G01N 104

Patent

active

051467941

ABSTRACT:
A filter punch construction is provided for use in conjunction with a multiwell filtration device wherein each well includes a filtration membrane. The punch has a leading surface to which is secured an elongated piercing member having a sharp point and a periphery comprising holding or cutting edges and a following surface which has a guide member. The piercing member and cutting edges pierce the filtration membrane in each well and push the entire filter and retentate thereon into a receptacle vial.

REFERENCES:
patent: 2013758 (1935-09-01), Livermore
patent: 2145725 (1939-01-01), Jamieson
patent: 4250899 (1981-02-01), Pagani
patent: 4277249 (1981-07-01), Broughton
patent: 4629236 (1986-12-01), Smith
patent: 4807367 (1989-02-01), Loerwald
patent: 4848309 (1989-07-01), Alderete
patent: 4969269 (1990-11-01), Dominguez

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