Fitting with prestressed septum

Details Fitting with prestressed septum Fitting with prestressed septum

1984-06-01

1987-04-07

Dixon, Jr., William R.

Surgery

Controlled release therapeutic device or system

Implanted dynamic device or system

604 48, 604140, A61M 700

Patent

active

046557652

ABSTRACT:
A medication infusion device (10) wherein a septum fitting (14) includes a housing (50) that cooperates with an annular band (68) and a septum (66) to define a cavity (80). A poppet (84) cooperates with a seating ring (88), annular band (68) and septum (66) to define an antechamber (85), and to form a seal between the septum and a reservior (32). The septum (66) is held in compression between the annular band (68) and a guide (56) to improve resealing of the septum.

REFERENCES:
patent: 3731681 (1973-05-01), Blackshear
patent: 3894538 (1975-07-01), Richter
patent: 3951147 (1976-04-01), Tucker
patent: 3977402 (1976-08-01), Pike
patent: 4152098 (1979-05-01), Moody et al.
patent: 4193397 (1980-03-01), Tucker et al.
patent: 4221219 (1980-09-01), Tucker
patent: 4229220 (1980-10-01), Hirota
patent: 4360019 (1982-11-01), Portner et al.
patent: 4373527 (1983-02-01), Fischell
patent: 4573994 (1986-03-01), Fischell et al.

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