Peristaltic pump with three lockingly sealed modules

Details Peristaltic pump with three lockingly sealed modules Peristaltic pump with three lockingly sealed modules

1992-06-10

1993-10-05

Bertsch, Richard A.

Pumps

Expansible chamber type

Elongated flexible chamber wall progressively deformed

417477, F04B 4312

Patent

active

052499375

ABSTRACT:
A medical peristaltic pump having improved pumping and sealing qualities, as well as providing increased flexibility of use and a high level of security. The pump is assembled from at least three modules, a pump rotor (22) being housed in a first module (36; 172) for compressing at least one tube (28; 28a; 28b) connecting a reservoir (30) for storing a liquid substance to the output (32) of the pump. The compression is effected against at least one support piece (34) of a second module (38, 174). The first and second modules are provided with first positioning elements and first assembly elements in a manner to define a set of two modules for compressing the tube to pump the liquid substance. The set of two modules and a third module (40, 176) are provided with second positioning elements and second assembly elements in a manner such that, once assembled, the third module (40, 176) assures sealing of the first module.

REFERENCES:
patent: 3249059 (1966-05-01), Renn
patent: 3429624 (1969-02-01), Freshwater
patent: 3942915 (1976-03-01), Thomas
patent: 4187057 (1980-02-01), Xanthopoulos
patent: 4537561 (1985-08-01), Xanthopoulos
patent: 4544336 (1985-10-01), Faeser et al.
patent: 4673334 (1987-06-01), Allington
patent: 4685902 (1987-08-01), Edwards et al.
patent: 4735558 (1988-04-01), Kienholz et al.
patent: 4925376 (1990-05-01), Kahler
patent: 5083908 (1992-01-01), Gagnebin et al.

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