Method of sealing filter in tubular fitting for medical injectio

Details Method of sealing filter in tubular fitting for medical injectio Method of sealing filter in tubular fitting for medical injectio

1974-01-31

1976-08-24

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

128214R, 156275, 156294, 210448, 210452, 210510, 219 1053, B01D 3920, B29C 2704

Patent

active

039765296

ABSTRACT:
A cylindrical, cup-shaped, porous, sintered powdered metal filter is sealed in a tubular thermoplastic fitting (e.g., the needle-retaining hub of a hypodermic needle or an adaptor or a connector in the line of an intravenous infusion set) by force-fitting the open end of the filter within an annular bead on the interior wall of the tubular fitting and induction heating the filter so that the thermoplastic bead will flow into the pores of the filter to form a continuous ring seal between the filter and the interior wall of the fitting.

REFERENCES:
patent: 2566354 (1951-09-01), Morey
patent: 2915187 (1959-12-01), Jaffe
patent: 2982418 (1961-05-01), Balley
patent: 3121685 (1964-02-01), Hazell
patent: 3406831 (1968-10-01), Bush et al.
patent: 3583458 (1971-06-01), Costa
patent: 3722697 (1973-03-01), Burke et al.

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